Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
The liquid crystal display device generally includes a liquid crystal display panel and a backlight module disposed at a back surface of the liquid crystal display panel, and the backlight module can be used for providing a light source for the liquid crystal display panel. The liquid crystal display panel includes a Color Filter (CF) substrate, a thin film transistor (Thin Film Transistor, TFT) array substrate, and a liquid crystal layer between the CF substrate and the TFT substrate. The working principle of the liquid crystal display device is that the liquid crystal molecules in the liquid crystal layer are controlled to rotate by applying a driving voltage, and a light source provided by the backlight module penetrates through a TFT array substrate of the liquid crystal display panel, is refracted out of the liquid crystal layer of the liquid crystal display panel, and generates a color picture through a CF substrate.
Along with the increasing requirements of people on display pictures, two liquid crystal display panels and a backlight module can be arranged in the liquid crystal display device to meet different display requirements. The backlight module provides light sources for two liquid crystal display panels, and the two liquid crystal display panels are matched with each other to display corresponding pictures. For example, two liquid crystal display panels are arranged in the liquid crystal display device, so that the liquid crystal display device can realize a local dimming function, a dark area of the liquid crystal display device can be darker, a bright area of the liquid crystal display device is brighter during display, the contrast ratio of the liquid crystal display device is improved, and the resolution ratio of the liquid crystal display device is further improved. When the liquid crystal display device with the local dimming function is set to a curved shape, display requirements at different viewing angles can be satisfied.
However, in order to meet the corresponding radius of curvature requirement, two lcd panels of a curved lcd device are respectively curved and then bonded. The liquid crystal display panels after bending deform, and the deformation conditions of the two liquid crystal display panels are different in the bending process respectively, so that the problem of inaccurate alignment exists after the liquid crystal display panels are attached, uneven display is generated, and the display effect of the liquid crystal display device is affected.
In order to solve the above problems, an embodiment of the present invention provides a curved liquid crystal display device, including:
the first liquid crystal display panel comprises a first array substrate and a first opposite substrate which is arranged opposite to the first array substrate, and the first array substrate and the first opposite substrate are both glass substrates;
The second liquid crystal display panel comprises a second array substrate and a second opposite substrate which is arranged opposite to the second array substrate, and the second array substrate and the second opposite substrate are flexible substrate substrates;
The backlight module is positioned on one side of the second array substrate, which is away from the second opposite substrate, the first array substrate is positioned on one side of the second opposite substrate, which is away from the second opposite substrate, the first opposite substrate is positioned on one side of the first array substrate, which is away from the second opposite substrate, and the first liquid crystal display panel, the second liquid crystal display panel and the backlight module are bent in the same direction.
According to the technical scheme, in the first aspect, the first array substrate and the first opposite substrate of the first liquid crystal display panel are glass substrates, the second array substrate and the second opposite substrate of the second liquid crystal display panel are flexible substrate substrates, the flexible substrate substrates have flexible performance, the first liquid crystal display panel and the second liquid crystal display panel are bonded, and then the curved liquid crystal display device formed by bending can reach smaller curvature radius, so that the curved liquid crystal display device has wider application, in the second aspect, the first array substrate and the first opposite substrate of the first liquid crystal display panel are glass substrates, the second array substrate and the second opposite substrate of the second liquid crystal display panel are flexible substrate substrates, the flexible substrate substrates have flexible performance, the first liquid crystal display panel and the second liquid crystal display panel are bonded and then bent, the first liquid crystal display panel formed by the glass substrates is used as a supporting structure of the second liquid crystal display panel, the curved liquid crystal display panel is prevented from further bending deformation, the curved liquid crystal display device is kept in the shape of a curved liquid crystal display panel, the second liquid crystal display panel is not required to be in a simplified supporting structure, the curved liquid crystal display panel is simplified, the curved liquid crystal display device can be bent, the cost of the second liquid crystal display panel can be reduced, the flexible substrate can be deformed due to the flexible substrate is formed by the second array substrate, the second array substrate and the second opposite substrate is flexible substrate, the flexible substrate has flexible substrate, the flexible substrate can be deformed by the flexible substrate, the flexible substrate is formed by the second opposite substrate, and the second liquid crystal display panel is attached, and the flexible substrate has flexible substrate, and the flexible substrate has the flexible substrate, and the flexible substrate and can be deformed, and meanwhile, the first liquid crystal display panel is bonded with the second liquid crystal display panel and then bent, so that the first liquid crystal display panel and the second liquid crystal display panel are bent at the same time, and the second liquid crystal display panel can attach to the first liquid crystal display panel to deform due to the characteristic of easy bending deformation of the second liquid crystal display panel, so that the first liquid crystal display panel and the second liquid crystal display panel after bending have a relatively accurate alignment relation, the display uniformity of the bent liquid crystal display device is improved, and the display effect of the bent liquid crystal display device is improved.
The foregoing is the core idea of the present invention, and the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are intended to fall within the scope of the present invention.
In the embodiment of the invention, the bending liquid crystal display device comprises a first liquid crystal display panel, a second liquid crystal display panel and a backlight module, wherein the backlight module can provide light sources for the first liquid crystal display panel and the second liquid crystal display panel so that the first liquid crystal display panel and the second liquid crystal display panel can be matched to display corresponding pictures, thereby realizing three-dimensional display or having higher contrast ratio and the like. The first liquid crystal display panel, the second liquid crystal display panel and the backlight module of the curved liquid crystal display device are curved in the same direction, that is, the first liquid crystal display panel, the second liquid crystal display panel and the backlight module of the curved liquid crystal display device can be curved towards the light emitting side of the curved liquid crystal display device or towards the backlight side of the curved liquid crystal display device, which is far away from the light emitting side.
Fig. 1 is a schematic diagram of a film structure of a curved lcd device according to an embodiment of the present invention. As shown in fig. 1, the curved liquid crystal display device 100 includes a first liquid crystal display panel 10, a second liquid crystal display panel 20, and a backlight module 30, and the first liquid crystal display panel 10, the second liquid crystal display panel 20, and the backlight module 30 are all curved in the same direction. The light source provided by the backlight module 30 sequentially passes through the second liquid crystal display panel 20 and the first liquid crystal display panel 10 to reach the light emitting side 101 of the curved liquid crystal display device 100, so that the curved liquid crystal display device 100 displays a corresponding image.
The first liquid crystal display panel 10 includes a first array substrate 11 and a first counter substrate 12 disposed opposite to each other, and a first liquid crystal layer 13 between the first array substrate 11 and the first counter substrate 12. The first array substrate 11 and the first opposite substrate 12 are both glass substrates, and the first opposite substrate 12 may be, for example, a color film substrate of the first liquid crystal display panel 10, so that the first liquid crystal display panel 10 can display a color picture. The second liquid crystal display panel 20 includes a second array substrate 21 and a second opposite substrate 22 disposed opposite to each other, and a second liquid crystal layer 23 between the second array substrate 21 and the second opposite substrate 22. The second array substrate 21 and the second opposite substrate 22 are flexible substrate, and the material of the flexible substrate may be polyimide, for example, so that the second liquid crystal display panel 20 has a flexible deformation characteristic. When the liquid crystal display device 100 is bent to display a picture, the first liquid crystal display panel 10 can be combined with the second liquid crystal display panel 20 to realize three-dimensional display, or the first liquid crystal display panel 10 is locally dimmed through the second liquid crystal display panel 20 so as to make the bright area brighter, the dark area darker, and the display contrast of the bent liquid crystal display device is improved.
To meet different display requirements, the display screen of the liquid crystal display device may be provided in a curved shape, so that the curved liquid crystal display device 100 can be formed. The display screen of the curved liquid crystal display device 100 includes a first liquid crystal display panel 10 and a second liquid crystal display panel 20, and the curved liquid crystal display device 100 is formed by bonding the first liquid crystal display panel 10 and the second liquid crystal display panel 20 and simultaneously bending the first liquid crystal display panel 10 and the second liquid crystal display panel 20.
In the prior art, the first counter substrate and the first array substrate of the first liquid crystal display panel of the curved liquid crystal display device are glass substrates, and the first counter substrate and the second array substrate of the second liquid crystal display panel are glass substrates, so the curved liquid crystal display device of the prior art is composed of two rigid liquid crystal display panels. Since the rigid lcd panel is difficult to bend and deform, the two rigid lcd panels of the bending lcd device are required to bend to reach a specific radius of curvature, and the rigid lcd panel of the bending lcd device can only be bonded after being respectively bent, so that the radii of curvature of the rigid lcd panel and the rigid lcd panel cannot be precisely controlled, so that the radii of curvature of the rigid lcd panel and the rigid lcd panel cannot be kept consistent, and the alignment accuracy of the two lcd panels of the bending lcd device is affected. Meanwhile, in order to ensure the combination characteristics of the first liquid crystal display panel and the second liquid crystal display panel, other designs are required to be performed based on the liquid crystal display panel with smaller curvature radius in the first liquid crystal display panel and the second liquid crystal display panel, so that the final curvature radius cannot meet the actual requirement.
In the embodiment of the present invention, since the second array substrate 21 and the second opposite substrate 22 of the second liquid crystal display panel 20 are both flexible substrate substrates, and the flexible substrate substrates have the characteristics of being easy to bend and deform, the second liquid crystal display panel 20 cannot keep the bending shape independently after bending, and the bending shape is required to be supported by an external supporting structure, so that the process cost will be increased. Since the first array substrate 11 and the first counter substrate 12 of the first liquid crystal display panel 10 are both glass substrates, the bent first liquid crystal display panel 10 can maintain a bent shape, and by first bonding the side of the second counter substrate 22 of the second liquid crystal display panel 20 facing away from the second array substrate 21 to the side of the first array substrate 11 of the first liquid crystal display panel 10 facing away from the first counter substrate, the bonded first liquid crystal display panel 10 and second liquid crystal display panel 20 are simultaneously bent, and at this time, the second liquid crystal display panel 20 bonded together with the first liquid crystal display panel 10 and simultaneously bent can maintain a bent shape with the first liquid crystal display panel 10 as a support.
Meanwhile, the second liquid crystal display panel 20 formed by the flexible substrate has the characteristic of easy bending deformation, the first liquid crystal display panel 10 is formed by a glass substrate which is not easy to bend deformation, when the first liquid crystal display panel 10 is bonded with the second liquid crystal display panel 20 and then bent, the second liquid crystal display panel 20 can reduce the bending difficulty of the first liquid crystal display panel 10 and reduce the stress applied to the first liquid crystal display panel 10 when the first liquid crystal display panel 10 is bent, so as to prevent the first liquid crystal display panel 10 from generating cracks and the like, namely the second liquid crystal display panel 20 can protect the first liquid crystal display panel 10. Accordingly, after the bending difficulty of the first lcd panel 10 is reduced by the second lcd panel 20, the bending lcd device 100 can reach a smaller radius of curvature, so that the bending lcd device 100 can have a wider application field.
In addition, when the second opposite substrate 22 of the second liquid crystal display panel 20 is attached to the first array substrate 11 of the first liquid crystal display panel 10 at a side facing away from the second array substrate 21, the first liquid crystal display panel 10 and the second liquid crystal display panel 20 should be aligned accurately, so as to ensure that the first liquid crystal display panel 10 and the second liquid crystal display panel 20 cooperate. After the first liquid crystal display panel 10 and the second liquid crystal display panel 20 are aligned and attached, the first liquid crystal display panel 10 formed by the second liquid crystal display panel 20 formed by the flexible substrate and the rigid glass substrate is bent in the bending process, so that the first liquid crystal display panel 10 and the second liquid crystal display panel 20 still maintain an accurate alignment relationship after bending, the phenomenon of uneven display caused by inaccurate alignment is prevented, and the display effect of the display panel is improved.
The first lcd panel 10 and the second lcd panel 20 may be bent directly by corresponding apparatuses, or after the curved backlight module 30 is provided, the first lcd panel 10 and the second lcd panel 20 may be bent along the curved shape of the backlight module 30, or the curved lcd device 100 may further include a glass cover 40 to protect other structures of the lcd device 100, after the first lcd panel 10 and the second lcd panel 20 are attached, the curved glass cover 40 may be provided, and the curved glass cover 40 and the backlight module 30 may have the same curved shape and direction, and after the first lcd panel 10 and the second lcd panel 20 are bent along the curved shape of the glass cover 40, the curved lcd device 100 is formed by attaching the curved lcd device to the curved backlight module 30.
In fig. 1, the first lcd panel 10, the second lcd panel 20 and the backlight module are all bent towards the light emitting side 101 of the curved lcd device 100, so that a better narrow viewing angle display effect can be achieved. Meanwhile, the first liquid crystal display panel 10, the second liquid crystal display panel 20 and the backlight module may also be bent toward the backlight side 102 of the bent liquid crystal display device 100 facing away from the light emitting side 101.
Fig. 2 is a schematic diagram of a film structure of another curved lcd device according to an embodiment of the present invention. The same parts of fig. 2 as those of fig. 1 are not described herein, and only the differences between fig. 2 and fig. 1 will be described. As shown in fig. 2, the first lcd panel 10, the second lcd panel 20 and the backlight module of the curved lcd device 100 are all curved towards the backlight side 102 of the curved lcd device 100 facing away from the light-emitting side 101, so as to improve the display difference perceived by the human eyes under different viewing angles of the curved lcd device, thereby improving the display effect.
It should be noted that fig. 1 and fig. 2 are both exemplary drawings of the embodiment of the present invention, in the curved liquid crystal display device 100, the first liquid crystal display panel 10, the second liquid crystal display panel 20 and the backlight module 30 are all curved in the same direction, and the specific bending direction can be determined according to the application scenario of the curved liquid crystal display device. For convenience of description, the technical solution of the embodiment of the present invention is described by taking the bending of the first lcd panel 10, the second lcd panel 20 and the backlight module 30 of the curved lcd device 100 toward the light emitting side of the curved lcd device 100 as an example.
Optionally, fig. 3 is a schematic diagram of a film structure of another curved lcd device according to an embodiment of the present invention. As shown in fig. 3, a diffusion layer 50 is further disposed between the first liquid crystal display panel 10 and the second liquid crystal display panel 20, and the diffusion layer 50 includes a transparent substrate 51 and diffusion particles 50 dispersed in the transparent substrate.
The transparent substrate 51 of the diffusion layer 50 is dispersed with diffusion particles 52, which can diffuse the light source provided by the backlight module 30, so as to avoid the generation of moire caused by different structures of the first liquid crystal display panel 10 and the second liquid crystal display panel 20. The transparent substrate 51 of the diffusion layer 50 may be, for example, an optical adhesive substrate, and the optical adhesive substrate can bond the first liquid crystal display panel 10 and the second liquid crystal display panel 20 together, without further coating another adhesive layer to bond the first liquid crystal display panel 10 and the second liquid crystal display panel 20, which can simplify the structure and facilitate the bending and thinning of the liquid crystal display device 100.
Optionally, fig. 4 is a schematic diagram of a film structure of another curved lcd device according to an embodiment of the present invention. As shown in fig. 4, the first liquid crystal display panel 10 further includes a first polarizer 14 and a second polarizer 15, the first polarizer 14 is located on a side of the first opposite substrate 12 facing away from the first array substrate 11, the second polarizer 15 is located on a side of the first array substrate 11 facing away from the first opposite substrate 12, the second liquid crystal display panel 20 further includes a third polarizer 24 and a fourth polarizer 25, the third polarizer 24 is located on a side of the second opposite substrate 22 facing away from the second array substrate 21, and the fourth polarizer 25 is located on a side of the second array substrate 21 facing away from the second opposite substrate 22.
The light source provided by the backlight module 30 sequentially passes through the second liquid crystal display panel 20 and the first liquid crystal display panel 10 to reach the light emitting side 101 for displaying images. The second liquid crystal layer 23 of the second liquid crystal display panel 20 is matched with the third polarizer 24 and the fourth polarizer 25, so that different areas of the second liquid crystal display panel 20 can have different light transmittances, and meanwhile, the first liquid crystal layer 13 of the first liquid crystal display panel 10 is matched with the first polarizer 14 and the second polarizer 15, so that different areas of the first liquid crystal display panel 10 can have different light transmittances, so that the curved liquid crystal display device 100 displays pictures.
Optionally, fig. 5 is a schematic diagram of a film structure of another curved lcd device according to an embodiment of the present invention. As shown in fig. 5, the first liquid crystal display panel 10 further includes a first polarizer 14 and a second polarizer 15, where the first polarizer 14 is located on a side of the first opposite substrate 12 facing away from the first array substrate 11, and the second polarizer 15 is located on a side of the first array substrate 11 facing away from the first opposite substrate 12, so that the first liquid crystal layer 13 of the first liquid crystal display panel 10 cooperates with the first polarizer 14 and the second polarizer 15, so that different regions of the first liquid crystal display panel 10 can have different light transmittances.
The second liquid crystal display panel 20 further includes a reflective polarizer 26, the reflective polarizer 26 being located on a side of the second array substrate 21 facing away from the second counter substrate 22, the reflective polarizer 26 may have a transmission axis and a reflection axis. The light parallel to the transmission axis of the reflective polarizer 26 in the light source provided by the backlight module 30 can be transmitted, so that different areas of the second lcd panel 20 can have different light transmittance, and the light parallel to the reflection axis of the reflective polarizer 26 in the light source provided by the backlight module 30 can be reflected back to the backlight module 30, so as to enhance the brightness of the light source provided by the backlight module 30, and further enhance the display effect. Meanwhile, in the second lcd panel 20, only one reflective polarizer is disposed on the side of the second array substrate 21 facing away from the second opposite substrate 22, so that the number of polarizers used in the curved lcd device 100 can be reduced, and the thickness of the curved lcd device 100 can be reduced.
Optionally, fig. 6 is a schematic diagram of a film structure of another curved lcd device according to an embodiment of the present invention. As shown in fig. 6, the first liquid crystal display panel 10 further includes a first polarizer 14 and a second polarizer 15, where the first polarizer 14 is located on a side of the first opposite substrate 12 facing away from the first array substrate 11, and the second polarizer 15 is located on a side of the first array substrate 11 facing away from the first opposite substrate 12, so that the first liquid crystal layer 13 of the first liquid crystal display panel 10 cooperates with the first polarizer 14 and the second polarizer 15, so that different regions of the first liquid crystal display panel 10 can have different light transmittances.
The first liquid crystal molecules 131 in the first liquid crystal layer 13 in the first liquid crystal display panel 10 are low-molecular liquid crystals, the low-molecular liquid crystals are low-molecular-weight liquid crystals, the value range of the molecular weight M of the low-molecular liquid crystals can be M less than or equal to 1000kg/mol, and the low-molecular liquid crystals exist in the form of single molecules in the first liquid crystal layer 13. The structure of the first liquid crystal molecule 131 is anisotropic, and the first liquid crystal layer 131 has a corresponding transmittance through the twisting direction of the first liquid crystal molecule 131.
The second liquid crystal display panel 20 further includes a first electrode 222 and a second electrode 212, the second liquid crystal layer 23 is located between the first electrode 222 and the second electrode 212, the first electrode 222 is located on one side of the second opposite substrate 22 close to the second array substrate 21, the second electrode 212 is located on one side of the second opposite substrate 21 close to the second opposite substrate 22, and the second liquid crystal layer 23 includes a polymer liquid crystal or a polymer network liquid crystal.
The first electrode 222 and the second electrode 212 in the second liquid crystal display panel 20 are located on the upper and lower sides of the second liquid crystal layer 23, the first electrode 222 and the second electrode 212 may be transparent electrodes, and the second liquid crystal molecules 231 in the second liquid crystal layer 23 are polymer liquid crystals or polymer network liquid crystals.
When the second liquid crystal molecules 231 in the second liquid crystal layer 23 are polymer liquid crystals, the second liquid crystal display panel obtains the electro-optical response characteristic by using the dielectric anisotropy of the polymer liquid crystals, and is free to switch between a scattering state and a transparent state, and does not need a polaroid and an alignment film, so that the relative cost is low, and the manufacturing process is simple. The high molecular polymer liquid crystal may include a droplet and a high molecular polymer, and the droplet may include a plurality of low molecular liquid crystals therein, and the low molecular liquid crystals are dispersed into the plurality of droplets by the high molecular polymer by mixing the droplet with the high molecular polymer. When no electric field is applied, the low molecular liquid crystals are freely arranged in the droplets, the droplets are disordered and arranged in the second liquid crystal layer 23, the low molecular liquid crystals and the high molecular polymer are mutually scattered, so that the second liquid crystal display panel 20 forms a dark state, when the electric field is applied, the low molecular liquid crystals are arranged in parallel, the refractive index of the high molecular polymer is consistent with the light refractive index of the low molecular liquid crystals, no scattering exists between the high molecular polymer and the low molecular liquid crystals, and the second liquid crystal display panel 20 is in a bright state.
When the second liquid crystal molecules 231 of the second liquid crystal layer 23 are polymer network liquid crystals, the second liquid crystal molecules 231 can also obtain the electro-optic response characteristic through the dielectric anisotropy of the polymer network liquid crystals, so as to switch freely between the scattering state and the transparent state, and a polarizer and an alignment film are not needed, so that the manufacturing cost is relatively low, and the manufacturing process is simple. The liquid crystal in the polymer network liquid crystal is not spherical (or ellipsoidal) microdroplets, but is distributed in the polymer three-dimensional network to form a continuous channel network. When no voltage is applied, the incident light is strongly scattered in the second liquid crystal display panel 20, and the incident light cannot pass through the second liquid crystal display panel 20, so that the second liquid crystal display panel 20 is in a dark state, and when a certain voltage is applied, the liquid crystal molecules with dielectric anisotropy are subjected to the torque action of an electric field, the direction of directors of the liquid crystal molecules is kept in the same direction as the electric field, a scattering mechanism is broken, and the incident light can pass through the second liquid crystal display panel 20, so that the second liquid crystal display panel 20 is in a bright state.
The bending liquid crystal display device of each embodiment is composed of a first liquid crystal display panel, a second liquid crystal display panel and a backlight module, wherein the backlight module can provide light sources for the first liquid crystal display panel and the second liquid crystal display panel so that the first liquid crystal display panel and the second liquid crystal display panel are matched with each other to achieve corresponding display effects. The curved liquid crystal display device may be a liquid crystal display device having a local dimming function, and the second liquid crystal display panel may be a display panel for local dimming of the curved liquid crystal display device. Hereinafter, a curved liquid crystal display device having a local dimming function will be exemplarily described with reference to the accompanying drawings.
Optionally, fig. 7 is a schematic top view of a curved lcd device according to an embodiment of the present invention. As shown in fig. 7, the first liquid crystal display panel 10 includes a plurality of first sub-pixels 110 arranged in an array, the second liquid crystal display panel 20 includes a plurality of second sub-pixels 210 arranged in an array, and one second sub-pixel 210 covers at least one first sub-pixel 110 of the first liquid crystal display panel 10.
The second lcd panel 20 of the curved lcd device 100 is located between the first lcd panel 10 and the backlight module 30, and one second sub-pixel 210 of the second lcd panel 20 correspondingly covers the first sub-pixel 110 of at least one first lcd panel 10, that is, the orthographic projection of at least one first sub-pixel 110 of the first lcd panel 10 on the second lcd panel 20 is located in the second sub-pixel of the second lcd panel 20. The light source provided by the backlight module 30 of the curved liquid crystal display device 100 firstly performs local dimming through the second liquid crystal display panel 20, and then irradiates the first liquid crystal display panel 10 and enables the first liquid crystal display panel 10 to display a picture.
Optionally, with continued reference to fig. 7, each second subpixel 210 covers n2 first subpixels 110, where n is a positive integer.
For example, one second subpixel 210 of the second liquid crystal display panel 20 may cover 42 first subpixels. Since the plurality of second sub-pixels 210 arranged in an array of the second liquid crystal display panel 20 may have different transmittances, the plurality of second sub-pixels 210 of the second liquid crystal display panel 20 may display different brightnesses, and correspondingly, the 42 first sub-pixels 110 covered by the same second sub-pixel 210 may also have different transmittances, so that the 42 first sub-pixels 110 covered by the second sub-pixel 210 may display different brightnesses. The brightness of the final display screen of the first lcd panel 10 is the superposition of the second sub-pixel 210 and the first sub-pixel 110. When the contrast ratio of the first lcd panel 10 is l1:1 and the contrast ratio of the second lcd panel 20 is l2:1, the contrast ratio of the curved lcd device 100 can reach l1×l2:1, so that the contrast ratio of the curved lcd device 100 can be improved, the display resolution can be improved, and the display effect of the curved lcd device 100 can be improved.
It should be noted that, in the bending lcd device 100 according to the embodiment of the present invention, the light transmittance of the plurality of first sub-pixels 110 of the first lcd panel 10 may be adjusted by the driving voltage or driving current of the pixel electrode (not shown) corresponding to the first sub-pixel 110, the light transmittance of the plurality of second sub-pixels 210 of the second lcd panel 20 may be adjusted by the driving voltage or driving current of the pixel electrode (not shown) corresponding to the second sub-pixel 210, and accordingly, the first lcd panel 10 and the second lcd panel 20 may be driven by the same driving chip, or driving chips may be respectively disposed in the first lcd panel 10 and the second lcd panel 20. Meanwhile, in the embodiment of the present invention, the light source of the backlight module 30 of the curved lcd device 100 may be a direct type light source or a side-in type light source, which is not particularly limited in the embodiment of the present invention.
Optionally, fig. 8 is a schematic diagram of a film structure of another curved lcd device according to an embodiment of the present invention. As shown in fig. 8, the backlight module 30 for the side-entrance light source includes a light emitting element 31 and a light guide plate 32. The light guide plate 32 is located at a side of the second array substrate 21 facing away from the second opposite substrate 22, and the light emitting element 31 is located at a side of the light guide plate 32. The light emitting element 31 may include, for example, a light emitting diode, where the light emitting element 31 is not directly contacted with a side end surface of the light guide plate 32, but the light emitting element 31 is fixed to a back plate (not shown in the drawing), the back plate can support and protect the light guide plate 32, the light emitting element 31 is located on a side of the back plate close to the light guide plate 32 and on a side of the light guide plate 32, a surface of the light guide plate 32 close to the light emitting element 31 intersects with a surface of the light guide plate 32 adjacent to the second liquid crystal display panel 20, and light emitted by the light emitting element 31 irradiates the light guide plate 32 in an X-axis direction and is conducted by the light guide plate 32 to be irradiated onto the second liquid crystal display panel 20. Thus, the side-entry backlight module 30 can have a thinner thickness.
In addition, the backlight module 30 may further include a backlight diffusion sheet 33 and a brightness enhancement film 34 disposed on a side of the light guide plate 32 near the second array substrate 21, and a module frame 35 disposed on a side of the light guide plate 32 away from the second array substrate, where the module frame 35 is used to support the light emitting element 31 and the light guide plate 32. Wherein the backlight diffusion sheet 33 is located between the light guide plate 32 and the brightness enhancement film 34. The thickness of the backlight diffusion sheet 33 is smaller than that of the light guide plate 32, and the light beam guided out by the light guide plate 32 is further diffused by the backlight diffusion sheet 33, so that the brightness distribution is more uniform.
Alternatively, fig. 9 is a schematic top view of another curved lcd device according to an embodiment of the present invention, and fig. 10 is a schematic film structure of a curved lcd device corresponding to fig. 9. Referring to fig. 9 and 10, the backlight module 30 of the curved lcd device 100 may further be a direct type backlight module 30, where the backlight module 30 includes a plurality of light emitting elements 31 and a light guide plate 32, the light guide plate 32 is located on a side of the second array substrate 21 facing away from the second opposite substrate 22, the light emitting elements 31 are located on a side of the light guide plate 32 facing away from the second array substrate 21, and the backlight module 30 includes a plurality of light emitting regions 310 arranged in an array, each light emitting region 310 includes at least one light emitting element 31, and each light emitting region 310 covers at least one second sub-pixel 210.
The light emitting region 310 covers the plurality of second sub-pixels 210, which means that the front projection of the plurality of second sub-pixels 210 on the backlight module 30 is located in one light emitting region 310 of the backlight module 30, the second sub-pixels 210 cover the plurality of first sub-pixels 110, which means that the front projection of the plurality of first sub-pixels 110 on the second liquid crystal display panel 20 is located in one second sub-pixel 210, and the light emitting element 31 may include, for example, a light emitting diode.
As an example, referring to fig. 7 and fig. 9 and 10, each light emitting area 310 of the backlight module 30 covers four second sub-pixels 210 of the second liquid crystal display panel 20, and each second sub-pixel 210 covers sixteen first sub-pixels 110 of the first liquid crystal display panel 10. The light emitting areas 310 of the backlight module 30 may have different light emitting brightness, which may be regarded as first-stage dimming. The driving voltage or driving current of the light emitting area 310 of the backlight module 30 may be the driving voltage or driving current of the light emitting diode 31 in the light emitting area 310, and the light emitting brightness of the light emitting area 310 may be adjusted by the driving voltage or driving current of the light emitting diode 31. The plurality of second sub-pixels 210 covered by the same light emitting region 310 may have different transmittances, so that the plurality of second sub-pixels 210 display different brightness, which may be regarded as second-level dimming, and the transmittance of the second sub-pixels 210 may be adjusted by the driving voltage or driving current of the pixel electrodes 214 corresponding to the second sub-pixels 210. The plurality of first sub-pixels 110 covered by the same second sub-pixel 210 may have different transmittances, so that the plurality of first sub-pixels 110 display different brightnesses, which may be regarded as third-stage dimming, and the transmittance of the first sub-pixels 110 may be adjusted by the driving voltage or driving current of the pixel electrodes 112 corresponding to the first sub-pixels 110.
In this way, the backlight module 30 and the second lcd panel 20 of the curved lcd device 100 both perform local dimming, and further improve the image display contrast. Meanwhile, since a smaller driving voltage or driving current can be provided for the light emitting area corresponding to the darker position of the picture, the power consumption of the backlight module 30 can be reduced, and thus the power consumption of the curved liquid crystal display device 100 is reduced on the premise that the curved liquid crystal display device 100 can also realize multi-stage dimming.
In addition, the direct type backlight module 30 may further include a diffusion sheet 33 and a brightness enhancement film 34, and the light beam guided out by the light guide plate 32 is further diffused by the backlight diffusion sheet 33, so that the brightness distribution is more uniform. The first opposite substrate 12 of the first liquid crystal display panel 10 may include a glass substrate 121, and a color resist 122, a black matrix 123, and a common electrode 124 positioned on a side of the glass substrate 121 near the first liquid crystal layer 13, the color resist 122 may be positioned between two adjacent black matrices 123, and a region between two adjacent black matrices 123 may be a region where the first subpixel 110 is positioned. The color resistors 122 may include, for example, red, green, and blue color resistors. The light passing through the red color resist shows red color, the light passing through the green color resist shows green color, and the light passing through the blue color resist shows blue color. The first array substrate of the first liquid crystal display panel 10 may include a glass substrate 111 and a pixel electrode 112 positioned at a side of the glass substrate 111 near the first liquid crystal layer 13. The second array substrate 21 of the second liquid crystal display panel 20 may include a flexible substrate 211 and a pixel electrode 213 positioned at a side of the flexible substrate near the second liquid crystal layer 23, and the second opposite substrate 22 of the second liquid crystal display panel 20 may include a flexible substrate 221 and a common electrode 223 positioned at a side of the flexible substrate 221 near the second liquid crystal layer 23.
Based on the same inventive concept, the embodiment of the invention also provides a preparation method of the curved liquid crystal display device, which can be used for preparing the curved liquid crystal display device provided by the embodiment of the invention. Fig. 11 is a flowchart of a method for manufacturing a curved liquid crystal display device according to an embodiment of the present invention, and fig. 12 is a schematic diagram of a film structure of a manufacturing process of a curved liquid crystal display device corresponding to fig. 11. Referring to fig. 11 and 12, a method for manufacturing a curved liquid crystal display device according to an embodiment of the present invention includes:
S110, providing a first liquid crystal display panel 10, wherein the first liquid crystal display panel 10 comprises a first array substrate 11 and a first opposite substrate 12 arranged opposite to the first array substrate 11, and the first array substrate 11 and the first opposite substrate 12 are glass substrates;
s120, providing an initial liquid crystal display panel 220 of a second liquid crystal display panel 20, wherein the second liquid crystal display panel 20 comprises a second array substrate 21 and a second opposite substrate 22 opposite to the second array substrate 21, the second array substrate 21 and the second opposite substrate 22 are flexible substrate substrates, the initial liquid crystal display panel 220 comprises the second array substrate 21, the second opposite substrate 22, a first glass substrate 28 and a second glass substrate 27, wherein the second array substrate 21 is positioned on one side of the first glass substrate 28 close to the second glass substrate 27, and the second opposite substrate 22 is positioned on one side of the second array substrate 21 close to the second glass substrate 27;
S130, peeling the first glass substrate 28 and the second glass substrate 27 of the initial liquid crystal display panel 220;
S140, bonding one side of the second opposite substrate 22, which is away from the second array substrate 21, with one side of the first array substrate 11, which is away from the first opposite substrate 12;
s150, providing a curved backlight module 30;
And S160, bonding one side of the second array substrate 21, which is away from the second opposite substrate 22, with the backlight module 30 along the bending direction of the backlight module 30, wherein the first liquid crystal display panel 10, the second liquid crystal display panel 20 and the backlight module 30 are bent in the same direction.
The first liquid crystal display panel 10 is formed by injecting the first liquid crystal 13 between the first array substrate 11 and the first opposite substrate 12, attaching polarizers to a side of the first array substrate 11 of the first liquid crystal display panel 10 facing away from the first opposite substrate 12 and a side of the first opposite substrate facing away from the first array substrate, respectively, and bonding a driving chip (not shown in the drawing) on the first array substrate 11.
Since the second array substrate 21 and the second counter substrate 22 of the second liquid crystal display panel 20 are flexible substrates, when forming the second array substrate 21 and the second counter substrate 22 of the second liquid crystal display panel 20, a corresponding support substrate is required, that is, the first glass substrate 28 may serve as a support substrate for the first array substrate 21 and the second glass substrate 27 may serve as a support substrate for the second counter substrate 22. Before the second liquid crystal display panel 20 is formed into a box, the first glass substrate 28 of the second array substrate 21 and the second glass substrate 27 of the second counter substrate 22 are in an unpeeled state, and after the box is formed, the initial liquid crystal display panel 220 of the second liquid crystal display panel 20 is formed. After the first glass substrate 28 and the second glass substrate 27 are peeled, a polarizer may be attached to a side of the second array substrate 21 facing away from the second opposite substrate 22 and/or a side of the second opposite substrate 22 facing away from the second array substrate 21, and a driving chip may be bonded to the second array substrate 21 to form the second liquid crystal display panel 20.
Since the second array substrate 21 and the second opposite substrate 22 of the second liquid crystal display panel 20 are flexible substrate substrates, the flexible substrate substrates have the characteristics of being easy to bend and deform, and therefore the second liquid crystal display panel 20 cannot independently maintain the bent shape after being bent, and the bent shape is required to be supported by an external supporting structure, so that the process cost is increased. The curved liquid crystal display device is formed by bonding the side of the second opposite substrate 22 of the second liquid crystal display panel 20, which is away from the second array substrate 21, to the side of the first array substrate 11 of the first liquid crystal display panel 10, which is away from the first opposite substrate, that is, bonding the formed second liquid crystal display panel 20 to the unflexed first liquid crystal display panel 10, and then bonding the bonded first liquid crystal display panel 10 and second liquid crystal display panel 20 to the backlight module 30 simultaneously along the curved shape of the backlight module 30. Since the first array substrate 11 and the first counter substrate 12 of the first liquid crystal display panel 10 are both glass substrates, the bent first liquid crystal display panel 10 can maintain a bent shape, and at this time, the second liquid crystal display panel 20, which is bonded to the first liquid crystal display panel 10 and is bent at the same time, can maintain the bent shape with the first liquid crystal display panel 10 as a support.
Meanwhile, the second liquid crystal display panel 20 formed by the flexible substrate has the characteristic of easy bending deformation, the first liquid crystal display panel 10 is formed by a glass substrate which is not easy to bend deformation, after the first liquid crystal display panel 10 is attached to the second liquid crystal display panel 20, the first liquid crystal display panel 10 and the second liquid crystal display panel 20 are attached to the backlight module 30 along the bending shape of the backlight module 30 at the same time, at the moment, the second liquid crystal display panel 20 can reduce the bending difficulty of the first liquid crystal display panel 10, and the stress applied to the first liquid crystal display panel 10 during bending is reduced, so that the first liquid crystal display panel 10 is prevented from generating cracks and the like, namely, the second liquid crystal display panel 20 can play a role in protecting the first liquid crystal display panel 10. Accordingly, after the bending difficulty of the first lcd panel 10 is reduced by the second lcd panel 20, the bending lcd device 100 can reach a smaller radius of curvature, so that the bending lcd device 100 can have a wider application field.
In addition, when the second opposite substrate 22 of the second liquid crystal display panel 20 is attached to the first array substrate 11 of the first liquid crystal display panel 10 at a side facing away from the second array substrate 21, the first liquid crystal display panel 10 and the second liquid crystal display panel 20 should be aligned accurately, so as to ensure that the first liquid crystal display panel 10 and the second liquid crystal display panel 20 cooperate. After the first liquid crystal display panel 10 and the second liquid crystal display panel 20 are aligned and attached, the first liquid crystal display panel 10 and the second liquid crystal display panel 20 are simultaneously attached to the backlight module 30 along the bending shape of the backlight module 30, and the first liquid crystal display panel 10 and the backlight module 30 which are formed by attaching the second liquid crystal display panel 20 formed by flexible substrate substrates and rigid glass substrates can be deformed in the bending process, so that after bending, the first liquid crystal display panel 10 and the second liquid crystal display panel 20 still maintain an accurate alignment relationship, and the phenomenon of uneven display caused by inaccurate alignment is prevented, and the display effect of the display panel is improved.
It should be noted that the polarizer may or may not be disposed in the second lcd panel 20, and when the polarizer is not disposed in the second lcd panel 20, the step of attaching the polarizer in the process of the second lcd panel 20 may be omitted. Meanwhile, the first liquid crystal display panel 10 and the second liquid crystal display panel 20 may be provided with driving chips, or the driving chips may be shared by the first liquid crystal display panel 10 and the second liquid crystal display panel, which is not particularly limited in the embodiment of the present invention.
In the embodiment of the invention, the first liquid crystal display panel and the second liquid crystal display panel can be respectively formed and then bonded, or the second glass substrate of the second opposite substrate in the second liquid crystal display panel can be peeled off and then bonded with the first liquid crystal display panel, and then the first glass substrate of the second array substrate in the second liquid crystal display panel is peeled off and then bonded with a polaroid, a bonding driving chip and the like.
Based on the same inventive concept, the embodiment of the invention also provides a method for preparing a curved liquid crystal display device, which can be used for preparing the curved liquid crystal display device of the embodiment of the invention. Fig. 13 is a flowchart of a method for manufacturing a curved liquid crystal display device according to another embodiment of the present invention, and fig. 14 is a schematic diagram of a film structure of a manufacturing process of a curved liquid crystal display device corresponding to fig. 13. Referring to fig. 13 and 14, a method for manufacturing a curved liquid crystal display device according to an embodiment of the present invention includes:
S210, providing a first liquid crystal display panel, wherein the first liquid crystal display panel comprises a first array substrate and a first opposite substrate which is arranged opposite to the first array substrate, and the first array substrate and the first opposite substrate are both glass substrates;
S220, providing an initial liquid crystal display panel of a second liquid crystal display panel, wherein the second liquid crystal display panel comprises a second array substrate and a second opposite substrate which is opposite to the second array substrate, the second array substrate and the second opposite substrate are flexible substrate substrates, the initial liquid crystal display panel comprises a second array substrate, a second opposite substrate, a first glass substrate and a second glass substrate, the second array substrate is positioned on one side of the first glass substrate, which is close to the second glass substrate, and the second opposite substrate is positioned on one side of the second array substrate, which is close to the second glass substrate;
s230, stripping a second glass substrate of the initial liquid crystal display panel;
S240, bonding one side of the second opposite substrate, which is away from the second array substrate, with one side of the first array substrate, which is away from the first opposite substrate;
s250, stripping the first glass substrate of the initial liquid crystal display panel;
s260, providing a curved backlight module;
and S270, attaching one side of the second array substrate, which is away from the second opposite substrate, to the backlight module along the bending direction of the backlight module, wherein the first liquid crystal display panel, the second liquid crystal display panel and the backlight module are bent towards the same direction.
The first liquid crystal display panel 10 is formed by injecting the first liquid crystal 13 between the first array substrate 11 and the first opposite substrate 12, attaching polarizers to a side of the first array substrate 11 of the first liquid crystal display panel 10 facing away from the first opposite substrate 12 and a side of the first opposite substrate facing away from the first array substrate, respectively, and bonding a driving chip (not shown in the drawing) on the first array substrate 11.
Since the second array substrate 21 and the second counter substrate 22 of the second liquid crystal display panel 20 are flexible substrates, when forming the second array substrate 21 and the second counter substrate 22 of the second liquid crystal display panel 20, a corresponding support substrate is required, that is, the first glass substrate 28 may serve as a support substrate for the first array substrate 21 and the second glass substrate 27 may serve as a support substrate for the second counter substrate 22. Before the second liquid crystal display panel 20 is formed into a box, the first glass substrate 28 of the second array substrate 21 and the second glass substrate 27 of the second counter substrate 22 are in an unpeeled state, and after the box is formed, the initial liquid crystal display panel 220 of the second liquid crystal display panel 20 is formed.
The second glass substrate 27 of the initial lcd panel 220 formed after the forming of the box is peeled off, and after the polarizer is attached to the side of the second opposite substrate 22 facing away from the second array substrate 21, the side of the second opposite substrate 22 facing away from the second array substrate 21 is directly attached to the side of the first array substrate 11 facing away from the first opposite substrate 12, and then the first glass substrate 28 of the initial lcd panel 220 is peeled off, and after the polarizer is attached to the side of the second array substrate 21 facing away from the second opposite substrate 22, and the driving chip is bonded to the second array substrate 21, so that the second lcd panel does not need a corresponding supporting structure when the polarizer and the bonding driving chip are attached, and the process cost is reduced. Finally, the side of the second array substrate 21 facing away from the second opposite substrate 22 is bonded to the curved backlight module 30 to form a curved liquid crystal display device.
After the first glass substrate 28 is peeled off and the polarizer and the bonding driving chip are attached, the attaching structure of the first liquid crystal display panel 10 and the second liquid crystal display panel 20 is formed, and the attaching structure is attached to the backlight module 30 along the bending shape of the backlight module 30, at this time, the second liquid crystal display panel 20 can reduce the bending difficulty of the first liquid crystal display panel 10, reduce the stress applied to the first liquid crystal display panel 10 during bending, and prevent the first liquid crystal display panel 10 from generating cracks and the like, namely, the second liquid crystal display panel 20 can play a role in protecting the first liquid crystal display panel 10. Accordingly, after the bending difficulty of the first lcd panel 10 is reduced by the second lcd panel 20, the bending lcd device 100 can reach a smaller radius of curvature, so that the bending lcd device 100 can have a wider application field.
In addition, the side of the attached second opposite substrate 22 away from the second array substrate 21 and the side of the first array substrate 11 away from the first opposite substrate have accurate alignment, so as to ensure that the first liquid crystal display panel 10 and the second liquid crystal display panel 20 are matched for display, and then the second opposite substrate is attached to the backlight module 30 along the curved shape of the backlight module 30, so that the first liquid crystal display panel 10 and the backlight module 30 formed by the second liquid crystal display panel 20 formed by the flexible substrate and the rigid glass substrate are deformed in the bending process, so that the first liquid crystal display panel 10 and the second liquid crystal display panel 20 still maintain accurate alignment relationship after bending, and the phenomenon of uneven display caused by inaccurate alignment is prevented, and the display effect of the display panel is improved.
In the embodiment of the invention, a diffusion layer can be further arranged on one side of the second opposite substrate, which is away from the second array substrate, and one side of the first array substrate, which is away from the first opposite substrate, so as to eliminate display mole patterns caused by structural differences between the first liquid crystal display panel and the second liquid crystal display panel during display. The diffusion layer may be formed by directly coating a side of the second opposite substrate facing away from the second array substrate before the side of the second opposite substrate facing away from the second array substrate is bonded to a side of the first array substrate facing away from the first opposite substrate, or may be provided with a diffusion sheet.
Optionally, on the basis of the embodiment, before the side, facing away from the second array substrate, of the second opposite substrate is attached to the side, facing away from the first opposite substrate, of the first array substrate, a diffusion layer is coated on the side, facing away from the second array substrate, of the second opposite substrate, the diffusion layer comprises a transparent base material and diffusion particles dispersed in the transparent base material, and at the moment, the side, facing away from the second array substrate, of the second opposite substrate is attached to the side, facing away from the first opposite substrate, of the first array substrate through the diffusion layer.
Before the diffusion layer is coated on the side of the second opposite substrate facing away from the second array substrate, the second opposite substrate needs to be peeled off from the second glass substrate on the side of the second opposite substrate facing away from the second array substrate, and at this time, the first glass substrate on the side of the second opposite substrate facing away from the second opposite substrate may be peeled off or not peeled off. The transparent substrate of the diffusion layer may be, for example, an optical adhesive substrate, so that no additional adhesive layer is needed, and the side of the second opposite substrate, which is away from the second array substrate, and the side of the first array substrate, which is away from the first opposite substrate, are bonded through the diffusion layer.
Optionally, on the basis of the embodiment, before the side, facing away from the second array substrate, of the second opposite substrate is attached to the side, facing away from the first opposite substrate, of the first array substrate, a diffusion sheet is further provided, the diffusion sheet comprises a diffusion layer, a first protection film and a second protection film, the first protection film is located on the first side of the diffusion layer, the second protection film is located on the second side of the diffusion layer, the diffusion layer comprises a transparent substrate and diffusion particles dispersed in the transparent substrate, the first protection film of the diffusion sheet is peeled off, the first side of the diffusion layer is attached to the side, facing away from the second array substrate, of the second opposite substrate, and the second protection film of the diffusion sheet is peeled off. At this time, the second side of the diffusion layer may be bonded to a side of the first array substrate facing away from the first opposite substrate, so as to bond a side of the second opposite substrate facing away from the second array substrate to a side of the first array substrate facing away from the first opposite substrate.
Before the first side of the diffusion layer is attached to the side, facing away from the second array substrate, of the second opposite substrate, the second glass substrate on the side, facing away from the second array substrate, of the second opposite substrate needs to be peeled off, and at this time, the first glass substrate on the side, facing away from the second opposite substrate, of the second opposite substrate may be peeled off or not peeled off. The transparent substrate of the diffusion layer may be, for example, an optical adhesive substrate, so that no additional adhesive layer is needed, and the side of the second opposite substrate, which is away from the second array substrate, and the side of the first array substrate, which is away from the first opposite substrate, are bonded through the diffusion layer. The first protective film and the second protective film may be, for example, release films.
In the embodiment of the invention, after the second opposite substrate is attached to the first array substrate opposite to the first opposite substrate and the attaching structure of the first liquid crystal display panel and the second liquid crystal display panel is formed, the attaching structure of the first liquid crystal display panel and the second liquid crystal display panel is bent at the same time. And in the bending of the bonding structure of the first liquid crystal display panel and the second liquid crystal display panel, the bonding structure of the first liquid crystal display panel and the second liquid crystal display panel can be bonded with the backlight module along the bending direction of the backlight module. Other bending structures can be provided, so that the attaching structure of the first liquid crystal display panel and the second liquid crystal display panel is attached to the backlight module after being bent along the other bending structures.
Optionally, on the basis of the embodiment, after the side, away from the second array substrate, of the second opposite substrate is attached to the side, away from the first opposite substrate, of the first array substrate, a curved glass cover plate is provided, the side, away from the first array substrate, of the first opposite substrate is attached to the glass cover plate along the bending direction of the glass cover plate, and the glass cover plate and the backlight module are bent towards the same direction.
Therefore, the attaching structure of the first liquid crystal display panel and the second liquid crystal display panel is attached to the bent glass cover plate along the bending direction of the bent glass cover plate, so that the bending structure of the first liquid crystal display panel and the second liquid crystal display panel is formed, and then the attaching structure is attached to the backlight module in the same bending direction. The first glass substrate on one side of the second array substrate, which is away from the second opposite substrate, can be peeled off to complete the processes of attaching the polarizer and bonding the driving chip before the attaching structure of the first liquid crystal display panel and the second liquid crystal display panel is attached to the bent glass cover plate along the bending direction of the bent glass cover plate, or the first glass substrate on one side of the second array substrate, which is away from the second opposite substrate, is not peeled off before the attaching structure of the first liquid crystal display panel and the second liquid crystal display panel is attached to the bent glass cover plate along the bending direction of the bent glass cover plate, but is peeled off after the attaching structure of the second array substrate is attached to the glass cover plate, the processes of attaching the polarizer and bonding the driving chip are performed, and then the attaching structure of the second array substrate and the bent backlight module are attached.
According to the embodiment of the invention, the first array substrate and the first opposite substrate of the first liquid crystal display panel are arranged as glass substrates, and the second opposite substrate and the second array substrate of the second liquid crystal display panel are arranged as flexible substrate substrates, so that the structure of the bent liquid crystal display device can be simplified, the product yield can be improved, the cost of the bent liquid crystal display device can be reduced, the bent first liquid crystal display panel and the bent second liquid crystal display panel can have an accurate alignment relationship, the phenomenon of uneven display of the bent liquid crystal display device can be improved, and the display effect of the bent liquid crystal display device can be improved.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.