CN114265220A - Display device and electric control liquid crystal diaphragm - Google Patents

Abstract

The application discloses a display device and an electric control liquid crystal diaphragm, wherein the display device comprises a peep-proof display panel and the electric control liquid crystal diaphragm, and the peep-proof display panel comprises a light beam-collecting device which is used for collecting light rays emitted from a light-emitting surface of the peep-proof display panel; the electric control liquid crystal membrane comprises electric control liquid crystal, and the electric control liquid crystal is arranged in the electric control liquid crystal membrane; the electric control liquid crystal diaphragm is arranged on one side of the light emergent surface of the peep-proof display panel and corresponds to the light beam collecting device; when the electric control liquid crystal membrane is electrified, the electric control liquid crystal orientation is uniform, and the electric control liquid crystal membrane is in a transparent state; when the electric control liquid crystal membrane is not electrified, the electric control liquid crystal is originally disordered, and the electric control liquid crystal membrane is in a penetration diffusion state; the visible angle of the light emitted from the light-emitting surface of the display device in the penetration and diffusion state is larger than that in the transparent state; this application is through above design to realize the peep-proof effect, can also freely switch the mode of peep-proof or non-peep-proof according to the condition.

Description

Display device and electric control liquid crystal diaphragm

Technical Field

The application relates to the technical field of display, in particular to a display device and an electric control liquid crystal membrane.

Background

With the popularization of portable display devices, the privacy protection technology of display devices is gaining increasing attention, and people want to protect their privacy when using electronic display devices in public places.

At present, the display device that has the peep-proof mode, the peep-proof structure sets up in display device, when needs peep-proof, can set up to the peep-proof mode, but can't regulate and control when not needing the peep-proof and switch into the peep-proof mode with the peep-proof mode, leads to using very inconvenient, current set up the peep-proof structure in display device in addition, can only be applicable to liquid crystal display device, and application scope is little. Therefore, how to provide a peep-proof display device, which can freely switch the peep-proof effect.

Disclosure of Invention

The application aims at providing a display device and an electronic control liquid crystal membrane, so that a peep-proof effect can be freely switched into a peep-proof mode or a non-peep-proof mode according to conditions.

The application discloses a display device, which comprises an electric control liquid crystal membrane and a peep-proof display panel, wherein the peep-proof display panel comprises a light beam converging device used for converging light rays emitted from a light emitting surface of the peep-proof display panel; the electric control liquid crystal membrane comprises electric control liquid crystal, and the electric control liquid crystal is arranged in the electric control liquid crystal membrane; the electric control liquid crystal membrane is arranged on one side of the light emergent surface of the peep-proof display panel and corresponds to the light beam converging device; when the electric control liquid crystal membrane is electrified, the electric control liquid crystal membrane is in a uniform orientation state, and the electric control liquid crystal membrane is in a transparent state; when the electric control liquid crystal membrane is not electrified, the electric control liquid crystal is originally disordered in orientation, and the electric control liquid crystal membrane is in a penetration diffusion state at the moment; the visible angle of the light emitted from the light-emitting surface of the display device in the penetration and diffusion state is larger than that in the transparent state.

Optionally, the light beam converging device includes a first black matrix layer and a second black matrix layer, where the first black matrix layer is a plurality of first black matrices disposed at intervals in the peep-proof display panel; the second black matrix layer is a plurality of second black matrixes which are arranged on the surface, close to the electric control liquid crystal membrane, of the peep-proof display panel at intervals, the first black matrixes and the second black matrixes are arranged in a one-to-one correspondence mode, and when light emitted by the light-emitting structure of the peep-proof display panel passes through the peep-proof display panel, the first black matrixes and the second black matrixes are matched to be used for collecting the light so as to display in a narrow visual angle.

Optionally, the light beam converging device includes a first black matrix layer and a second black matrix layer, where the first black matrix layer is a plurality of first black matrices disposed at intervals in the peep-proof display panel; the second black matrix layer is a plurality of second black matrixes arranged at intervals on the light incoming surface of the peep-proof display panel, the first black matrixes and the second black matrixes are arranged in a one-to-one correspondence mode, and when light rays emitted by the light emitting structure of the peep-proof display panel are incident on the light incoming surface of the peep-proof display panel, the first black matrixes and the second black matrixes are matched to be used for collecting the light rays so as to display at a narrow viewing angle.

Optionally, the light beam converging device includes a grating diaphragm, and the grating diaphragm is used for converging light to perform narrow viewing angle display; the grating diaphragm comprises a grating layer shading area and a grating layer light-transmitting area which are alternately arranged, and the grating diaphragm is arranged between the electric control liquid crystal diaphragm and the peep-proof display panel.

Optionally, the peep-proof display panel is a liquid crystal display panel, and the peep-proof display panel includes a first substrate, a liquid crystal layer and a second substrate, the first substrate and the second substrate are oppositely disposed, and the liquid crystal layer is located between the first substrate and the second substrate; the first substrate is positioned on the light incident surface of the liquid crystal layer, and the second substrate is positioned on the light emergent surface of the liquid crystal layer; the first black matrix layer is arranged on one side of the first substrate close to the liquid crystal layer or the first black matrix layer is arranged on one side of the second substrate close to the liquid crystal layer.

Optionally, the electrically controlled liquid crystal film further includes an upper substrate, a first transparent electrode layer, a second transparent electrode layer and a lower substrate, the second transparent electrode layer is disposed on one side of the lower substrate away from the light exit surface of the peep-proof display panel, the first transparent electrode layer is disposed on one side of the upper substrate close to the light exit surface of the peep-proof display panel, the upper substrate and the lower substrate are disposed in an opposite direction to form a cavity, and the electrically controlled liquid crystal is disposed in the cavity; the first transparent electrode layer is integrally formed and is paved on the upper substrate in a whole surface; the second transparent electrode layer is integrally formed and is paved on the lower substrate in a whole surface; the thickness of the electric control liquid crystal is 20um-200 um.

Optionally, a width of the first black matrix in the extending direction is b1, a width of the second black matrix is b2, an interval between the first black matrix and the second black matrix is h, a distance between central axes of the first black matrix and the second black matrix in the extending direction is P, an average refractive index of light passing through between the first black matrix layer and the second black matrix layer is n, an included angle between a maximum viewing angle of the light and a normal of the display panel after the light passes through the privacy protection structure is d, and the maximum viewing angle is 2d, 2d ═ 2arcsin { n { arctan (2P-b1-b2)/2h }; wherein 2d is 56 ° or less and greater than 0 °.

The application also discloses automatically controlled liquid crystal diaphragm for control display panel switches between peep-proof mode and non-peep-proof mode, be provided with first black matrix layer in the display panel, a plurality of first black matrixes that first black matrix layer set up for the interval, automatically controlled liquid crystal diaphragm includes the shading structure that a plurality of intervals set up, shading structure sets up in the automatically controlled liquid crystal diaphragm, and with first black matrix one-to-one sets up, and the cooperation is right the light that display panel sent is received and is restrainted.

Optionally, the light shielding structure includes a plurality of second black matrixes arranged at intervals; the display panel is a liquid crystal display panel, the liquid crystal display panel comprises a first substrate, a first black matrix layer, a liquid crystal layer and a second substrate, the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is positioned between the first substrate and the second substrate; the first substrate is positioned on the light incident surface of the liquid crystal layer, and the second substrate is positioned on the light emergent surface of the liquid crystal layer; the first black matrix layer is arranged on one side, close to the liquid crystal layer, of the first substrate or on one side, close to the liquid crystal layer, of the second substrate, the first black matrix layer comprises a plurality of first black matrixes arranged at intervals, and the first black matrixes and the second black matrixes are arranged in a one-to-one correspondence mode; or the display panel is an active light-emitting display panel and comprises a substrate, an active light-emitting layer and a first black matrix layer, wherein the active light-emitting layer is arranged on the substrate, the first black matrix layer is a plurality of first black matrixes which are arranged on a light-emitting surface of the active light-emitting layer at intervals, and the first black matrixes and the second black matrixes are arranged in a one-to-one correspondence manner.

Compared with the prior art, the mode of peeping-proof is uncontrollable, this application makes automatically controlled liquid crystal diaphragm present transparent state or pierce through the diffusion state through setting up automatically controlled liquid crystal diaphragm at peeping-proof display panel's play plain noodles, and whether the orientation is unified through the automatically controlled liquid crystal of control in the automatically controlled liquid crystal diaphragm, in order to realize that display device can freely switch as required between peeping-proof mode and non-peeping-proof mode, makes display device's mode of peeping-proof be controllable, and can use different display device simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present application;

fig. 2 is a schematic structural diagram of a specific display device provided in a first embodiment of the present application;

fig. 3 is a schematic structural diagram of an electrically controlled liquid crystal film provided in the first embodiment of the present application;

FIG. 4 is an enlarged partial schematic view of region A of FIG. 2;

fig. 5 is a schematic structural diagram of a display device provided in a second embodiment of the present application;

fig. 6 is a schematic structural diagram of a display device according to a third embodiment of the present application;

fig. 7 is a schematic structural diagram of a display device according to a fourth embodiment of the present application;

fig. 8 is a schematic structural diagram of a display device provided in a fifth embodiment of the present application;

FIG. 9 is a schematic structural diagram of an electrically controlled liquid crystal film according to a sixth embodiment of the present application;

fig. 10 is a schematic structural diagram of a display device according to a sixth embodiment of the present application;

fig. 11 is a schematic structural diagram of a display device according to a seventh embodiment of the present application;

fig. 12 is a schematic structural view of another display device of the present application.

Wherein, 1, a display device; 10. a privacy display panel; 100. a light beam converging device; 110. a first black matrix layer; 111. a first black matrix; 120. a second black matrix layer; 121. a second black matrix; 130. a first substrate; 140. a liquid crystal layer; 150. a second substrate; 160. a substrate; 170. an active light emitting layer; 200. an electrically controlled liquid crystal membrane; 210. an upper substrate; 220. a first transparent electrode layer; 230. electrically controlling the liquid crystal; 240. a second transparent electrode layer; 250. a lower substrate; 260. a cavity; 270. a light shielding structure; 300. a grating diaphragm; 310. a grating layer shading area; 320. a grating layer light-transmitting area; 400. an electrically controlled liquid crystal membrane connector; 500. a drive circuit.

Detailed Description

It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, are relatively representative, and are not to be interpreted as limiting only to the embodiments set forth herein.

The present application is described in detail below with reference to the figures and alternative embodiments.

The first embodiment:

fig. 1 is a schematic structural view of a display device according to a first embodiment of the present application, and as shown in fig. 1, adisplay device 1 includes a privacy-protectingdisplay panel 10 and an electrically-controlledliquid crystal film 200, where the privacy-protectingdisplay panel 10 includes a light beam converging device 100 for converging light emitted from a light emitting surface of the privacy-protecting display panel; the electrically controlledliquid crystal membrane 200 comprises an electrically controlledliquid crystal 230, and the electrically controlledliquid crystal 230 is arranged in the electrically controlledliquid crystal membrane 200; the electrically controlledliquid crystal film 200 is disposed on one side of the light emitting surface of the peep-proof display panel 10, and corresponds to the light beam converging device 100; when the electrically controlledliquid crystal film 200 is powered on, the electrically controlledliquid crystal 230 has uniform orientation, and the electrically controlledliquid crystal film 200 is in a transparent state; when the electric controlliquid crystal membrane 200 is not electrified, the orientation of the electriccontrol liquid crystal 230 is originally disordered, and the electric controlliquid crystal membrane 200 is in a penetration diffusion state; the viewing angle of the light emitted from the light emitting surface of thedisplay device 1 in the penetration and diffusion state is larger than that in the transparent state.

This application sets up the play plain noodles at peep-proof display panel 10 through automatically controlledliquid crystal diaphragm 200, and whether the orientation is unified through the automatically controlled liquid crystal of control in the automatically controlledliquid crystal diaphragm 200 that deflects, makes automatically controlled liquid crystal diaphragm present transparent state or diffusion state to realize that display device can freely switch as required between peep-proof mode and non-peep-proof mode, makedisplay device 1's peep-proof mode controllable, but also can usedifferent display device 1 simultaneously.

Specifically, fig. 2 is a schematic structural diagram of a specific display device provided in the first embodiment of the present application, and as shown in fig. 2, the light beam converging device 100 includes a first black matrix layer 110 and a second black matrix 120, where the first black matrix layer 110 is a plurality of firstblack matrices 111 disposed at intervals in the privacy-enhanceddisplay panel 10; the second black matrixes 120 are a plurality of secondblack matrixes 121 arranged on the surface of the peep-proof display panel 10 close to the electric controlliquid crystal film 200 at intervals, the plurality of firstblack matrixes 111 and the plurality of secondblack matrixes 121 are arranged in a one-to-one correspondence manner, and when light emitted by the light-emitting structure of the peep-proof display panel 10 passes through the peep-proof display panel 10, the firstblack matrixes 111 and the secondblack matrixes 121 are matched to converge the light so as to perform narrow-view-angle display. The peep-proof display panel 10 further comprises an electric control liquidcrystal membrane connector 400 and adriving circuit 500, wherein the electric controlliquid crystal membrane 200 is connected to a printed circuit board through the electric control liquidcrystal membrane connector 400 and the drivingcircuit 500, and is driven and controlled to be electrified or not electrified through the printed circuit board; a certain distance is left between the firstblack matrix 111 and the secondblack matrix 121, so that a light beam converging device 100 with a vertical channel is formed between the two black matrices, and thus after the light beam passes through the peep-proof display panel 10, the light beam is converged by the light beam converging device 100 and then emitted out of the vertical channel to form a light beam with a smaller visible angle, and then is adjusted by the electrically controlledliquid crystal film 200 and then emitted out of the light emitting surface of the electrically controlled liquid crystal film (i.e. emitted out of the light emitting surface of the display device 1). Specifically, when the printed circuit board controls the electrically controlledliquid crystal film 200 to be powered on, the electrically controlledliquid crystal film 200 is in a transparent state, light with a small visible angle is directly transmitted out, and thedisplay device 1 presents a peep-proof picture with a narrow viewing angle (i.e. a peep-proof mode); when the printed circuit board controls the electric controlliquid crystal membrane 200 not to be powered on, at this time, the electric controlliquid crystal membrane 200 is in a penetration diffusion state, when light with a small visual angle penetrates through the electric control liquid crystal membrane, the light is refracted for many times to be restored into light with a large visual angle (namely, the visual angle in the penetration diffusion state is larger than the visual angle in the transparent state), and the light is transmitted out from the light-emitting surface of the electric control liquid crystal membrane, thedisplay device 1 presents a wide-viewing-angle non-peep-proof picture (namely, a non-peep-proof mode), and the selection can be freely switched according to needs.

Compared with the scheme of firstly collecting light and then passing through the display panel, the scheme of firstly collecting light and then passing through the display panel can reflect and refract the light, the light collecting effect of the light is damaged, the wide visual angle is still visible, the secondblack matrix 121 is arranged on the light emitting surface and matched with the firstblack matrix 111 to collect the light to directly reach human eyes, the picture seen by the human eyes is well collected, and the utilization rate of the light with the narrow visual angle is further improved. The firstblack matrix 111, which is matched with the secondblack matrix 121, makes the display panel thin by using the original structure of the display panel.

Fig. 3 is a schematic structural diagram of an electrically controlled liquid crystal film provided in a first embodiment of the present application, and as shown in fig. 3, the electrically controlledliquid crystal film 200 further includes anupper substrate 210, a firsttransparent electrode layer 220, a secondtransparent electrode layer 240 and alower substrate 250, the secondtransparent electrode layer 240 is disposed on one side of thelower substrate 250 away from a light emitting surface of the privacyprotection display panel 10, the firsttransparent electrode layer 220 is disposed on one side of theupper substrate 210 close to the light emitting surface of the privacyprotection display panel 10, theupper substrate 210 and thelower substrate 250 are disposed opposite to each other to form acavity 260, and the electrically controlledliquid crystal 230 is disposed in thecavity 260; the firsttransparent electrode layer 220 is integrally formed and is laid on theupper substrate 210 on the whole surface; the secondtransparent electrode layer 240 is integrally formed and is laid on thelower substrate 250 in its entire surface; the thickness of the electrically controlledliquid crystal 230 is 20um-200 um. When the first transparent electrode layer 220 and the second transparent electrode layer 240 are powered on, a high-voltage electric field is generated between the two transparent electrode layers to control the deflection orientation of the electronic control liquid crystal 230, and under the condition that the orientations of the electronic control liquid crystal 230 are uniform, the electronic control liquid crystal film 200 is in a transparent state, light with a small visual angle directly penetrates through the electronic control liquid crystal film 200 at a narrow visual angle, and at the moment, the peep-proof display panel 10 presents a peep-proof picture with a narrow visual angle (namely, a peep-proof mode); when the first transparent electrode layer 220 and the second transparent electrode layer 240 are not powered on, the electronic control liquid crystal 230 is in an original disordered state, the electronic control liquid crystal membrane 200 is in a penetration diffusion state, light with a smaller visual angle reaches the electronic control liquid crystal membrane 200 and is blocked by the disordered electronic control liquid crystal 230 and can be refracted for multiple times, at this time, light with the smaller visual angle originally is restored into light with a larger visual angle due to multiple refraction and diffusion, and is transmitted out from the light-emitting surface of the electronic control liquid crystal membrane 200, and the peep-proof display panel 10 is in a wide-viewing-angle non-peep-proof picture (i.e. a non-peep-proof mode).

Therefore, the peep-proof effect can be selected according to the requirement, and the whole surface covered electric controlliquid crystal membrane 200 can be applied to a flexible substrate and is wide in application range; of course, the firsttransparent electrode layer 220 may not be covered by the whole surface, but a plurality of first transparent electrode layers are individually disposed on theupper substrate 210, and in this case, theupper substrate 210 may be a rigid substrate, and may be selectively disposed according to the needs and the specific situations. Moreover, when the thickness of the electrically controlledliquid crystal 230 is thin, the light beam passes through the electrically controlledliquid crystal film 200 and is reflected for multiple times to display in a fog state, so that the display effect of the whole display device can be reduced while the display with a large viewing angle is realized, and the electrically controlled liquid crystal film is equivalent to a thin diffusion sheet.

Fig. 4 is a partially enlarged schematic view of the area a in fig. 2, as shown in fig. 4, in this embodiment, a width of the firstblack matrix 111 along the extending direction is b1, a width of the secondblack matrix 121 along the extending direction is b2, a distance between the firstblack matrix 111 and the secondblack matrix 121 is h, a distance between central axes of the firstblack matrix 111 and the secondblack matrix 121 along the extending direction is P, an average refractive index of light propagating through between the first black matrix layer 110 and the second black matrix 120 is n, an included angle between a maximum viewing angle of the light after the light passes through theprivacy display panel 10 and a normal of theprivacy display panel 10 is d, and the maximum viewing angle is 2d, 2d ═ csarin { n [ arctan (2P-b1-b2)/2h ] }; wherein 2d is 56 ° or less and greater than 0 °. At this time, by setting the widths of the firstblack matrix 111 and the secondblack matrix 121 in the extending direction and the interval between the secondblack matrix 121 and the secondblack matrix 121, the maximum viewing angle of the light can be set within a specific range to achieve the best privacy effect regardless of the variation of the average refractive index of the light propagating through between the first black matrix layer 110 and the second black matrix 120, and the privacy effect is best when the maximum viewing angle 2d is 56 ° or less and more than 0 °.

Second embodiment:

fig. 5 is a schematic structural diagram of a display device according to a second embodiment of the present application, and as shown in fig. 5, the present embodiment is different from the first embodiment in that the light beam converging device 100 includes a first black matrix layer 110 and a second black matrix 120, and the first black matrix layer 110 is a plurality of first black matrices 111 disposed at intervals in the privacy-enhanced display panel 10; the second black matrixes 121 are a plurality of second black matrixes 121 arranged at intervals on the light incident surface of the peep-proof display panel 10, the first black matrixes 111 and the second black matrixes 121 are arranged in a one-to-one correspondence manner, and when light rays emitted by the light emitting structure of the peep-proof display panel 10 are incident on the light incident surface of the peep-proof display panel 10, the first black matrixes 111 and the second black matrixes 121 are matched to converge the light rays so as to perform narrow-view-angle display; form at the vertical channel between per two black matrixes that correspond, when light was penetrated by the income plain noodles, gather through the vertical channel and concentrate, and light is when being restrainted, two-layer transparent electrode layer control automatically controlled liquid crystal diaphragm 200 switch mode, light directly jets out, display device 1 shows peep-proof state or non-peep-proof state, the utilization ratio of light has further been improved, make light can be utilized by when jetting out completely, display device 1's display effect is better, and the structure of original first black matrix 111 in peep-proof display panel 10 has been utilized like this, can also reduce the stacking thickness of rete, can reduce the thickness of display panel when realizing the peep-proof picture, realize that the display panel is slim.

The third embodiment:

fig. 6 is a schematic structural diagram of a display device according to a third embodiment of the present application, and as shown in fig. 6, the present embodiment is different from the first and second embodiments in that the privacyprotection display panel 10 is a liquid crystal display panel, the privacyprotection display panel 10 includes afirst substrate 130, aliquid crystal layer 140, and asecond substrate 150, thefirst substrate 130 and thesecond substrate 150 are disposed opposite to each other, and theliquid crystal layer 140 is located between thefirst substrate 130 and thesecond substrate 150; thefirst substrate 130 is located at the light incident surface of theliquid crystal layer 140, and thesecond substrate 150 is located at the light emergent surface of theliquid crystal layer 140; the first black matrix layer 110 is disposed on a side of thefirst substrate 130 adjacent to theliquid crystal layer 140 or the first black matrix layer 110 is disposed on a side of thesecond substrate 150 adjacent to theliquid crystal layer 140. The applicability is wider, the liquid crystal display panel can be applicable, light is converged after passing through the peep-proof display panel 10, and the light utilization rate is higher.

The fourth embodiment:

fig. 7 is a schematic structural diagram of a display device according to a fifth embodiment of the present application, and as shown in fig. 7, the present embodiment is different from the first, second, and third embodiments in that the light beam receiving device 100 includes agrating diaphragm 300, thegrating diaphragm 300 is used for receiving light to perform narrow viewing angle display, thegrating diaphragm 300 includes a gratinglayer shading area 310 and a grating layerlight transmission area 320 which are alternately arranged, and thegrating diaphragm 300 is disposed between the electrically controlledliquid crystal diaphragm 200 and theprivacy display panel 10. Thegrating diaphragm 300 has a certain thickness, thegrating diaphragm 300 is directly installed, partial light can be refracted after being shielded by the gratinglayer shading area 310 of thegrating diaphragm 300, and then the partial light and other vertical light are emitted out after being collected through a vertical channel of the grating layer light-transmittingarea 320, and the peep-proof effect is achieved through the switching mode of the electric controlliquid crystal diaphragm 200; wherein, the light emitted by the light-emitting structure of the peep-proof display panel 10 firstly passes through the display panel and then is converged; the converged light passes through few film layers before reaching human eyes, the generated reflection and refraction are few, the light convergence effect is good, and the light is displayed at a small visual angle, so that the peep-proof effect is better; by adopting the embodiment, thegrating diaphragm 300 can be directly installed, and the assembly is convenient and quick.

Fifth embodiment:

fig. 8 is a schematic structural diagram of a display device according to a fourth embodiment of the present application, and as shown in fig. 8, the difference between this embodiment and the fourth embodiment is that the display panel may also be an active light emitting display panel, where the active light emitting display panel includes a substrate 160 and an activelight emitting layer 170 disposed on the substrate 160, and the first black matrix layer 110 is disposed on a light emitting surface of the activelight emitting layer 170. At this time, thelight grid membrane 300 can be arranged on the light emitting surface of the display panel, the light is collected by thelight grid membrane 300 and then is matched with the electric controlliquid crystal membrane 200, so that the peep-proof effect of the active light emitting display panel is achieved, wherein the light directly emitted by the activelight emitting layer 170 can be directly collected, the number of films passing through other panels is small, the scattering chance is less, and the convergence of the light is higher. For example, the display device can be applied to an organic active light emitting diode display device and a micron light emitting diode display device, and othersuitable display devices 1, and is widely applied.

Sixth embodiment:

fig. 9 is a schematic structural diagram of an electronic control liquid crystal film provided in a sixth embodiment of the present application, and as shown in fig. 9, the present application further discloses an electronic controlliquid crystal film 200 for controlling a display panel to switch between a peep-proof mode and a non-peep-proof mode, a first black matrix layer 110 is provided in the display panel, the first black matrix layer 110 is a plurality of firstblack matrices 111 arranged at intervals, the electronic controlliquid crystal film 200 includes a plurality oflight shielding structures 270 arranged at intervals, thelight shielding structures 270 are provided in the electronic controlliquid crystal film 200, and are arranged in a one-to-one correspondence with the firstblack matrices 111, and the light emitted by the display panel is converged in a matching manner. Thelight shielding structure 270 includes a plurality of secondblack matrixes 121 disposed at intervals. Thus, the secondblack matrix 121 in the electrically controlledliquid crystal film 200 can be directly utilized to cooperate with the firstblack matrix 111 to collect light, when the electrically controlled liquid crystal film is applied to thedisplay device 1, the manufacturing process and thickness of a film layer in the display panel can be reduced, so that the thickness of the display panel is reduced, and thedisplay device 1 is thinner; and the peep-proof effect is controllable, and the application range is wide.

Specifically, fig. 10 is a schematic structural diagram of a display device according to a sixth embodiment of the present disclosure, and as shown in fig. 10, the display panel is a liquid crystal display panel, the liquid crystal display panel includes afirst substrate 130, a first black matrix layer 110, aliquid crystal layer 140, and asecond substrate 150, thefirst substrate 130 and thesecond substrate 150 are disposed opposite to each other, and theliquid crystal layer 140 is located between thefirst substrate 130 and thesecond substrate 150; thefirst substrate 130 is located at the light incident surface of theliquid crystal layer 140, and thesecond substrate 150 is located at the light emergent surface of theliquid crystal layer 140; the first black matrix layer 110 is disposed on one side of thefirst substrate 130 close to theliquid crystal layer 140 or the first black matrix layer 110 is disposed on one side of thesecond substrate 150 close to theliquid crystal layer 140, the first black matrix layer 110 includes a plurality of firstblack matrixes 111 disposed at intervals, and the firstblack matrixes 111 and the secondblack matrixes 121 are disposed in a one-to-one correspondence manner. The principle and effect of the light beam collection can be referred to the third embodiment, and are not described in detail here.

Seventh embodiment:

fig. 11 is a schematic structural diagram of a display device according to a seventh embodiment of the present disclosure, and as shown in fig. 11, a difference between this embodiment and the sixth embodiment is that the display panel is an active light emitting display panel, the display panel includes a substrate 160, an activelight emitting layer 170 and a first black matrix layer 110, the activelight emitting layer 170 is disposed on the substrate 160, the first black matrix layer 110 is a plurality of firstblack matrices 111 disposed at intervals on a light emitting surface of the activelight emitting layer 170, and the firstblack matrices 111 and the secondblack matrices 121 are disposed in a one-to-one correspondence manner. The active light emittingdisplay device 1 is suitable for active lightemitting display devices 1, and is wide in applicability, and compared with thegrating diaphragm 300, the active light emitting display device is relatively thin due to the fact that the original structure of the active light emitting display panel is utilized.

Fig. 12 is a schematic structural diagram of another display device of the present application, and as shown in fig. 12, the present application further discloses adisplay device 1, which includes an electrically controlledliquid crystal film 200 and a display panel according to a sixth embodiment, where the electrically controlledliquid crystal film 200 is disposed on one side of a light exit surface of the display panel, and is disposed corresponding to a black matrix in the display panel, and is configured to converge light emitted from the light exit surface of the display panel, so as to perform narrow viewing angle display. Thedisplay device 1 with the peep-proof function is formed by directly utilizing the electric controlliquid crystal membrane 200 with the secondblack matrix 121 arranged inside and a common display panel, and is convenient to assemble, disassemble and use.

It should be noted that the inventive concept of the present application is not limited to the description above, but the space of the application document is limited and cannot be listed one by one; for those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.

Claims (10)

1. A display device comprises an electric control liquid crystal membrane and is characterized by further comprising a peep-proof display panel, wherein the peep-proof display panel comprises a light beam-collecting device which is used for collecting light rays emitted from a light-emitting surface of the peep-proof display panel; the electric control liquid crystal membrane comprises electric control liquid crystal, and the electric control liquid crystal is arranged in the electric control liquid crystal membrane;

the electric control liquid crystal membrane is arranged on one side of the light emergent surface of the peep-proof display panel and corresponds to the light beam converging device; when the electric control liquid crystal membrane is electrified, the electric control liquid crystal membrane is in a uniform orientation state, and the electric control liquid crystal membrane is in a transparent state; when the electric control liquid crystal membrane is not electrified, the electric control liquid crystal is originally disordered in orientation, and the electric control liquid crystal membrane is in a penetration diffusion state at the moment;

the visible angle of the light emitted from the light-emitting surface of the display device in the penetration and diffusion state is larger than that in the transparent state.

2. The display device according to claim 1, wherein the light converging device comprises a first black matrix layer and a second black matrix layer, the first black matrix layer is a plurality of first black matrices arranged at intervals in the peep-proof display panel;

the second black matrix layer is a plurality of second black matrixes which are arranged on the surface, close to the electric control liquid crystal membrane, of the peep-proof display panel at intervals, the first black matrixes and the second black matrixes are arranged in a one-to-one correspondence mode, and when light emitted by the light-emitting structure of the peep-proof display panel passes through the peep-proof display panel, the first black matrixes and the second black matrixes are matched to be used for collecting the light so as to display in a narrow visual angle.

3. The display device according to claim 1, wherein the light converging device comprises a first black matrix layer and a second black matrix layer, the first black matrix layer is a plurality of first black matrices arranged at intervals in the peep-proof display panel;

the second black matrixes are a plurality of second black matrixes which are arranged on the light incoming surface of the peep-proof display panel at intervals, the first black matrixes and the second black matrixes are arranged in a one-to-one correspondence mode, and when light rays emitted by the light emitting structure of the peep-proof display panel are incident on the light incoming surface of the peep-proof display panel, the first black matrixes and the second black matrixes are matched to be used for collecting the light rays so as to display at a narrow visual angle.

4. The display device of claim 1, wherein the light converging means comprises a grating diaphragm;

the grating diaphragm comprises a grating layer shading area and a grating layer light-transmitting area which are alternately arranged, and the grating diaphragm is arranged between the electric control liquid crystal diaphragm and the peep-proof display panel.

5. The display device according to any one of claims 2 to 3, wherein the privacy display panel is a liquid crystal display panel,

the peep-proof display panel comprises a first substrate, a liquid crystal layer and a second substrate, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is positioned between the first substrate and the second substrate; the first substrate is positioned on the light incident surface of the liquid crystal layer, and the second substrate is positioned on the light emergent surface of the liquid crystal layer;

the first black matrix layer is arranged on one side of the first substrate close to the liquid crystal layer or the first black matrix layer is arranged on one side of the second substrate close to the liquid crystal layer.

6. The display device according to claim 1, wherein the electrically controlled liquid crystal film further comprises an upper substrate, a first transparent electrode layer, a second transparent electrode layer and a lower substrate, the second transparent electrode layer is disposed on a side of the lower substrate away from the light-emitting surface of the privacy display panel, the first transparent electrode layer is disposed on a side of the upper substrate close to the light-emitting surface of the privacy display panel, the upper substrate and the lower substrate are disposed opposite to each other to form a cavity, and the electrically controlled liquid crystal is disposed in the cavity;

the first transparent electrode layer is integrally formed and is paved on the upper substrate in a whole surface; the second transparent electrode layer is integrally formed and is paved on the lower substrate in a whole surface;

the thickness of the electric control liquid crystal is 20um-200 um.

7. The display device according to claim 2 or 3, wherein the first black matrix has a width b1 along the extending direction, the second black matrix has a width b2 along the extending direction, the first black matrix is spaced from the second black matrix by h, the first black matrix is spaced from the second black matrix by P along the central axis of the extending direction, the average refractive index of light passing between the first black matrix layer and the second black matrix layer is n, the maximum viewing angle of light after passing through the privacy display panel is d from the normal of the privacy display panel, and the maximum viewing angle is 2d, 2d 2arcsin { n { anti (2P-b1-b 2)/352 h };

wherein 2d is 56 ° or less and greater than 0 °.

8. The utility model provides an automatically controlled liquid crystal diaphragm for control display panel switches between peep-proof mode and non-peep-proof mode, be provided with first black matrix layer in the display panel, first black matrix layer is a plurality of first black matrixes that the interval set up, its characterized in that, automatically controlled liquid crystal diaphragm includes the shading structure that a plurality of intervals set up, shading structure sets up in automatically controlled liquid crystal diaphragm, and with first black matrix one-to-one sets up, and the cooperation is right the light that display panel sent is received and is restrainted.

9. The electrically controlled liquid crystal film according to claim 8, wherein said light shielding structure comprises a plurality of second black matrixes arranged at intervals;

the display panel is a liquid crystal display panel, the liquid crystal display panel comprises a first substrate, a first black matrix layer, a liquid crystal layer and a second substrate, the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is positioned between the first substrate and the second substrate; the first substrate is positioned on the light incident surface of the liquid crystal layer, and the second substrate is positioned on the light emergent surface of the liquid crystal layer;

the first black matrix layer is arranged on one side, close to the liquid crystal layer, of the first substrate or on one side, close to the liquid crystal layer, of the second substrate, the first black matrix layer comprises a plurality of first black matrixes arranged at intervals, and the first black matrixes and the second black matrixes are arranged in a one-to-one correspondence mode;

or the display panel is an active light-emitting display panel and comprises a substrate, an active light-emitting layer and a first black matrix layer, wherein the active light-emitting layer is arranged on the substrate, the first black matrix layer is a plurality of first black matrixes which are arranged on a light-emitting surface of the active light-emitting layer at intervals, and the first black matrixes and the second black matrixes are arranged in a one-to-one correspondence manner.

10. A display device, comprising the electrically controlled liquid crystal film and the display panel as claimed in any one of claims 8 to 9, wherein the electrically controlled liquid crystal film is disposed on one side of the light exit surface of the display panel, and disposed corresponding to the black matrix in the display panel, for converging the light emitted from the light exit surface of the display panel to perform narrow viewing angle display.

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