CN112130377B - Display device and control method thereof - Google Patents
Display device and control method thereofDownload PDFInfo
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- CN112130377B CN112130377BCN202011077649.5ACN202011077649ACN112130377BCN 112130377 BCN112130377 BCN 112130377BCN 202011077649 ACN202011077649 ACN 202011077649ACN 112130377 BCN112130377 BCN 112130377B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
Description
Technical Field
The invention relates to the field of display, in particular to a display device and a control method thereof.
Background
Because of the advantages of thin body, soft and non-damaging Display picture, and no radiation, Liquid Crystal Display (LCD) panels are widely used in terminal devices such as mobile phones and tablet computers, and household appliances such as televisions.
In the current mainstream terminal device design, a display panel and a photosensitive element are usually arranged on the front face of a body of the terminal device at the same time, and the photosensitive element and a liquid crystal display panel are integrated for improving the display panel occupation ratio of the terminal device. In the prior art, when a liquid crystal display panel is integrated with a photosensitive element, holes or grooves need to be formed in the area of the integrated photosensitive element, wherein the hole area or the groove area cannot display.
Disclosure of Invention
The invention provides a display device and a control method thereof, which realize that at least partial area of a display panel can be light-permeable and can display, and are convenient for the under-screen integration of photosensitive elements.
In one aspect, an embodiment of the present invention provides a display device, including: the display device comprises a first display area and a second display area, wherein the first display area at least partially surrounds the second display area; a display panel; backlight unit is located display panel one side, and backlight unit includes: the bottom frame comprises a bottom plate and a first side plate, the bottom plate comprises a first through hole positioned in the second display area, and the first side plate is vertically arranged on the bottom plate and surrounds the first through hole; the first light source is arranged on the bottom frame and used for providing backlight for the display panel of the first display area; the sleeve is connected to the side, away from the display panel, of the bottom frame and comprises a cylindrical part, and the cylindrical part surrounds the periphery of the first through hole; the second light source is arranged on the sleeve and used for providing backlight for the display panel of the second display area, wherein the second light source is positioned at the periphery of the first through hole; and the photosensitive element is positioned on one side of the backlight module, which deviates from the display panel, the photosensitive surface of the photosensitive element faces the display panel, and at least part of the photosensitive surface is positioned in the second display area.
In another aspect, an embodiment of the present invention provides a control method for a display device, where the control method is used to control the display device according to any one of the foregoing embodiments of the one aspect, and the photosensitive element includes an image capture device, and the control method includes: in the normal display mode, the image acquisition device is closed, and the first light source and the second light source are both in a light-emitting state; in the image acquisition mode, the image acquisition device is started, the first light source is in a luminous state, and the second light source is in a non-luminous state
According to the display device of the embodiment of the invention, at least part of the photosensitive surface of the photosensitive element is positioned in the second display area, the bottom frame of the backlight module comprises a bottom plate, and the bottom plate comprises a first through hole positioned in the second display area. When the sensitization function is realized to needs, the first through-hole on the display panel of second display area and the backlight unit can be passed to external light, reaches the sensitization face of sensitization component. The photosensitive element can identify received light, and a corresponding photosensitive function is realized. The first light source of the backlight module can provide backlight for the display panel of the first display area, the display device further comprises a sleeve and a second light source, wherein the cylindrical part included by the sleeve surrounds the periphery of the first through hole, and the second light source is installed on the sleeve and can provide backlight for the display panel of the second display area. Therefore, in the normal display mode, the first light source and the second light source are both in a light-emitting state, and the first display area and the second display area of the display panel can both display pictures, so that the actual displayable area of the display panel in the normal display mode is increased. The display device realizes that the first display area of the display panel can transmit light and display, and is convenient for realizing the screen-down integration and comprehensive screen display design of the photosensitive element. In addition, the second light source is located at the periphery of the first through hole, so that the second light source is prevented from directly irradiating the display panel of the second display area, the display brightness of the second display area is prevented from being obviously higher than that of the first display area, and the whole brightness uniformity of the display panel in normal display is improved to a certain extent.
Drawings
Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
FIG. 1 is a schematic top view of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a display device provided in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged partial schematic view of the area Q1 of FIG. 2;
FIG. 4 is a schematic perspective view of a sleeve in a display device according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a display device provided in accordance with an alternative embodiment of the invention;
FIG. 6 is a schematic cross-sectional view of a display device provided in accordance with an alternative embodiment of the present invention with photosensitive elements hidden;
FIG. 7 is an enlarged partial schematic view of the area Q2 of FIG. 5;
FIG. 8 is a schematic cross-sectional view of a display device provided in accordance with another alternative embodiment of the present invention;
FIG. 9 is an enlarged partial schematic view of the area Q3 of FIG. 8;
fig. 10 is a schematic cross-sectional view of a display device provided in accordance with still another alternative embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
Embodiments of the present invention provide a Display device, which includes a Display panel, where the Display panel may be a Liquid Crystal Display (LCD), and the Display device according to embodiments of the present invention may be presented in various forms, some examples of which will be described below.
Fig. 1 is a schematic top view of a display device provided according to an embodiment of the present invention, the display device including a first display area DA1 and a second display area DA2, the first display area DA1 at least partially surrounding the second display area DA 2. For example, in the present embodiment, the first display area DA1 is disposed around the entire circumference of the second display area DA 2.
Fig. 2 is a schematic cross-sectional view of a display device provided according to an embodiment of the present invention. Referring to fig. 1 and 2, the display device includes adisplay panel 110, abacklight module 120, asleeve 130, asecond light source 140, and aphotosensitive element 150.
Thedisplay panel 110 may be an LCD panel, and includes an array substrate, a color film substrate on the array substrate, and a liquid crystal layer sandwiched between the array substrate and the color film substrate.
Thebacklight module 120 is disposed at one side of thedisplay panel 110, and specifically, thedisplay panel 110 is disposed at a light emitting side of thebacklight module 120. Thebacklight module 120 includes abottom frame 121 and afirst light source 122. Thebottom frame 121 includes abottom plate 1211 and afirst side plate 1212. Thebottom panel 1211 is substantially parallel to thedisplay panel 110 and spaced apart from thedisplay panel 110, thebottom panel 1211 includes a first through hole H1 located in the second display area DA2, and thefirst side panel 1212 is erected on thebottom panel 1211 and surrounds the first through hole H1. A first light source 122 (not shown in fig. 2) is installed on thebottom frame 121, and thefirst light source 122 is used for providing backlight to thedisplay panel 110 of the first display area DA 1.
Thesleeve 130 is connected to thebottom frame 121 at a side away from thedisplay panel 110, wherein thesleeve 130 includes acylindrical portion 131, and thecylindrical portion 131 surrounds the periphery of the first through hole H1. Thesecond light sources 140 are mounted to thesleeve 130, and thesecond light sources 140 are used for providing backlight to thedisplay panel 110 of the second display area DA2, wherein thesecond light sources 140 are located at the periphery of the first through hole H1.
Thephotosensitive element 150 is located on a side of thebacklight module 120 facing away from thedisplay panel 110, a photosensitive surface PS of thephotosensitive element 150 faces thedisplay panel 110, and at least a portion of the photosensitive surface PS is located in the second display area DA 2. Thelight sensing element 150 is an image pickup device such as a camera, for example, so that external image information can be picked up. It is understood that thelight sensing element 150 may not be limited to being an image capture device, for example, in some embodiments, thelight sensing element 150 may also be an infrared light sensor, an ambient light sensor, or the like. Here, thephotosensitive element 150 is described as an example of an image pickup device.
According to the display device of the embodiment of the invention, at least a portion of the photosensitive surface PS of thephotosensitive element 150 is located in the second display area DA2, thebottom frame 121 of thebacklight module 120 includes abottom plate 1211, and thebottom plate 1211 includes the first through hole H1 located in the second display area DA 2. When the light sensing function is needed, the external light can pass through thedisplay panel 110 of the second display area DA2 and the first through hole H1 of thebacklight module 120, and reach the light sensing surface PS of thelight sensing element 150. Thephotosensitive element 150 can recognize the received light to realize the corresponding photosensitive function. Thefirst light source 122 of thebacklight module 120 can provide backlight to thedisplay panel 110 of the first display area DA1, the display device further includes asleeve 130 and asecond light source 140, wherein thesleeve 130 includes acylindrical portion 131 surrounding the periphery of the first through hole H1, and thesecond light source 140 is mounted on thesleeve 130 and can provide backlight to thedisplay panel 110 of the second display area DA 2. Therefore, in the normal display mode, thefirst light source 122 and thesecond light source 140 are both in the light-emitting state, and both the first display area DA1 and the second display area DA2 of thedisplay panel 110 can display the picture, so that the actual displayable area of thedisplay panel 110 in the normal display mode is increased. The display device realizes that the first display area DA1 of thedisplay panel 110 can transmit light and display, and is convenient for realizing the under-screen integration and the full-screen display design of thephotosensitive element 150. In addition, thesecond light sources 140 are located at the periphery of the first through hole H1, so that thesecond light sources 140 are prevented from directly irradiating thedisplay panel 110 in the second display area DA2, the display brightness of the second display area DA2 is prevented from being significantly higher than that of the first display area DA1, and the overall brightness uniformity of thedisplay panel 110 during normal display is improved to a certain extent.
Thedisplay panel 110 has pixels arranged in both the first display area DA1 and the second display area DA 2. Optionally, the pixel density of the second display area DA2 is lower than that of the first display area DA1, so that the light transmittance of the second display area DA2 is increased, the amount of light passing through thedisplay panel 110 of the second display area DA2 and illuminating thelight sensing elements 150 is increased, and the image acquisition quality of thelight sensing elements 150 is improved.
Fig. 3 is a partially enlarged schematic view of the area Q1 in fig. 2, in which thesecond light source 140 includes a second light source emitting surface GS disposed toward thebottom plate 1211 to prevent thesecond light source 140 from directly illuminating thedisplay panel 110 in the second display area DA2, and prevent the display brightness of the second display area DA2 from being significantly higher than the display brightness of the first display area DA1 to generate a brightness difference.
Optionally, a surface of thebottom plate 1211 facing away from thedisplay panel 110 and/or an inner wall surface of thesleeve 130 include a diffuse reflection surface, for example, in the present embodiment, both the surface of thebottom plate 1211 facing away from thedisplay panel 110 and the inner wall surface of thesleeve 130 are diffuse reflection surfaces. In the present embodiment, the inner wall surface of thesleeve 130 is the wall surface of the sleeve facing the first through hole H1. In the normal display mode, the light emitted from the secondlight source 140 is diffusely reflected for multiple times by the surface of thebottom plate 1211 and/or the inner wall surface of thesleeve 130 to form uniform light which can be radiated to thedisplay panel 110 in the second display area DA2, so that backlight unevenness caused by the secondlight source 140 directly irradiating thedisplay panel 110 in the second display area DA2 is avoided, and display brightness uniformity of each area of thedisplay panel 110 in the normal display mode is realized.
Fig. 4 is a schematic perspective view of asleeve 130 in a display device according to an embodiment of the present invention. As shown in fig. 2 to 4, optionally, thesleeve 130 further includes a connectingportion 132, the connectingportion 132 is connected to a side of thecylindrical portion 131 facing thebacklight module 120 and extends toward an outer periphery of thecylindrical portion 131, and the connectingportion 132 is connected to thebottom plate 1211 of thebacklight module 120. In this embodiment, the connectingportion 132 is annular and is disposed parallel to thebottom plate 1211. Thesleeve 130 may be made of a rigid material, the connectingportion 132 and thebottom plate 1211 may be connected by, for example, adhesion, and thesleeve 130 and thebottom plate 1211 of thebacklight module 120 are stably connected by the connectingportion 132.
As shown in fig. 2 and 3, optionally, the secondlight source 140 includes a secondflexible circuit board 141 and a plurality of secondlight emitting elements 142 located on the secondflexible circuit board 141, and the plurality of secondlight emitting elements 142 are arranged around the periphery of the first through hole H1. The secondLight Emitting element 142 may be a Light Emitting Diode (LED).
As shown in fig. 2 to 4, optionally, thecylindrical portion 131 of thesleeve 130 is provided with an opening OP 1. A part of the secondflexible circuit board 141 extends to the outer peripheral side of thecylindrical portion 131 via the opening OP 1. The plurality of second light-emittingelements 142 of the secondlight source 140 are disposed on the inner circumferential side of thecylindrical portion 131, and the opening OP1 is disposed to facilitate the secondflexible circuit board 141 to pass through from the inner circumferential side of thecylindrical portion 131 to the outer circumferential side of thecylindrical portion 131, thereby facilitating the electrical connection of the secondflexible circuit board 141 with other components on the outer circumferential side of thecylindrical portion 131, and facilitating the power supply and light emission control of the plurality of second light-emittingelements 142 on the inner circumferential side of thecylindrical portion 131.
As shown in fig. 2 and 3, in some embodiments, the secondlight emitting element 142 is a side light emitting type light emitting element, and the secondflexible circuit board 141 is connected to an inner wall surface of thecylindrical portion 131. For example, the secondlight emitting element 142 is a side-emitting light emitting element, and the second light source emitting surface GS is disposed toward thebottom plate 1211. In the present embodiment, thesleeve 130 includes the connectingportion 132 and thecylindrical portion 131, and thecylindrical portion 131 surrounds and forms the third through hole H3. The orthographic projection of the photosensitive surface PS of thephotosensitive element 150 on thedisplay panel 110 is located in the orthographic projection of the outline of the third through hole H3 on thedisplay panel 110, or at least part of thephotosensitive element 150 penetrates through the third through hole H3. When the photosensitive function is required to be achieved, the external light can pass through thedisplay panel 110 of the second display area DA2, the first through hole H1 of thebacklight module 120, and the third through hole H3 of thesleeve 130, and reach the photosensitive surface PS of thephotosensitive element 150. Thephotosensitive element 150 can recognize the received light to realize the corresponding photosensitive function.
The structure of thesleeve 130 and the connection manner of the secondlight emitting element 142 and thesleeve 130 are not limited to the above examples, and other situations may also occur, and some alternative embodiments will be exemplified below.
Fig. 5 and 6 are schematic cross-sectional views of a display device according to an alternative embodiment of the invention, in which thephotosensitive element 150 is hidden from view in fig. 6. In this embodiment, thesleeve 130 further includes aflat plate portion 133, and theflat plate portion 133 is connected to a side of thecylindrical portion 131 away from thebacklight module 120 and extends toward an inner circumference of thecylindrical portion 131. Theflat plate portion 133 includes a second through hole H2, an orthographic projection of an outline of the second through hole H2 on thedisplay panel 110 is located inside an orthographic projection of an outline of the first through hole H1 on thedisplay panel 110, and at least a portion of thephotosensitive element 150 penetrates through the second through hole H2. When the photosensitive function is needed, the external light can pass through thedisplay panel 110 of the second display area DA2 and the first through hole H1 of thebacklight module 120, reach thephotosensitive element 150 penetrating through the third through hole H3 of thesleeve 130, and be received by the photosensitive surface PS. Thephotosensitive element 150 can recognize the received light to realize the corresponding photosensitive function.
Fig. 7 is a partially enlarged schematic view of the area Q2 in fig. 5, and the secondlight source 140 includes a second light source emitting surface GS. The secondlight source 140 includes a secondflexible circuit board 141 and a plurality of secondlight emitting elements 142 on the secondflexible circuit board 141, and the secondlight emitting elements 142 may be LEDs. In the embodiment, the secondlight emitting element 142 is a top-emitting light emitting element, and the secondflexible circuit board 141 is connected to the surface of theflat plate portion 133 facing thebacklight module 120, so that the second light source emitting surface GS is disposed facing thebottom plate 1211. In this embodiment, thesleeve 130 further includes aflat plate portion 133 to facilitate mounting of the secondlight emitting element 142 of the top emission type.
When thesleeve 130 includes thecylindrical portion 131 and theflat plate portion 133, the light emitting manner of the light emitting element matched thereto may be more flexible, and is not limited to the top emission type of the secondlight emitting element 142.
Fig. 8 is a schematic cross-sectional view of a display device according to another alternative embodiment of the invention, fig. 9 is a partially enlarged view of a region Q3 in fig. 8, and the secondlight source 140 includes a second light source emitting surface GS. In the present embodiment, thesleeve 130 includes acylindrical portion 131, a connectingportion 132, and aflat plate portion 133. The connectingportion 132 is connected to the side of thecylindrical portion 131 facing thebacklight unit 120, extends toward the outer peripheral side of thecylindrical portion 131, and is connected to thebottom plate 1211 of thebacklight unit 120. Theflat plate portion 133 is connected to thecylindrical portion 131 on the side away from thebacklight unit 120, and extends toward the inner periphery of thecylindrical portion 131. The secondlight source 140 includes a secondflexible circuit board 141 and a plurality of secondlight emitting elements 142 located on the secondflexible circuit board 141, in an embodiment, the secondlight emitting elements 142 are side-emitting light emitting elements, and the secondflexible circuit board 141 is connected to an inner wall surface of thecylindrical portion 131, so that the second light source light emitting surface GS is disposed toward thebottom plate 1211.
Fig. 10 is a schematic cross-sectional view of a display device provided in accordance with still another alternative embodiment of the present invention. In some embodiments, thebottom frame 121 further includes asecond side plate 1213, and thesecond side plate 1213 is erected on thebottom plate 1211 and disposed around an outer contour of thebottom plate 1211.
Thebacklight assembly 120 may further include a Light Guide Plate (LGP) 123 and a multi-layeroptical film 124. Thelight guide plate 123 is disposed on a side of thebottom panel 1211 facing thedisplay panel 110, and thelight guide plate 123 is disposed between thesecond side plate 1213 and thefirst side plate 1212. The multilayeroptical film 124 is disposed on a side of thelight guide plate 123 facing thedisplay panel 110, and the multilayeroptical film 124 is located between thesecond side plate 1213 and thefirst side plate 1212. The firstlight source 122 is disposed on one side of thelight guide plate 123 along a direction parallel to thedisplay panel 110, or the firstlight source 122 is disposed on one side of thelight guide plate 123 departing from thedisplay panel 110.
In the embodiment, the firstlight source 122 is disposed on one side of thelight guide plate 123 along a direction parallel to thedisplay panel 110, that is, the firstlight source 122 is a side-light type light source. In some embodiments, thebacklight module 120 may further include areflective sheet 125, and thereflective sheet 125 is located on a side of thelight guide plate 123 facing away from thedisplay panel 110. In other embodiments, the firstlight source 122 is disposed on a side of thelight guide plate 123 away from thedisplay panel 110, that is, the firstlight source 122 is a direct-type light source, and thebacklight module 120 may not have a reflective sheet.
The multilayeroptical Film layer 124 may include at least one Diffuser (Diffuser) and at least one Brightness Enhancement Film (BEF). In one example, the multilayeroptical film layer 124 includes a diffusion sheet, a lower brightness enhancement sheet, and an upper brightness enhancement sheet stacked in sequence from thelight guide plate 123 toward thedisplay panel 110, but it is understood that the multilayeroptical film layer 124 includes the diffusion sheet, the number of brightness enhancement sheets, and the stacking manner may be other cases according to the actual design requirement.
In some embodiments, the display device further includes a firstpolarizing plate 161 and a secondpolarizing plate 162. Thefirst polarizer 161 is located on the side of thedisplay panel 110 facing thebacklight module 120; thesecond polarizer 162 is located on the side of thedisplay panel 110 away from thebacklight module 120. In some embodiments, the display device further includes acover plate 170, where thecover plate 170 is located on a side of thedisplay panel 110 away from thebacklight module 120, and is used to provide protection for thedisplay panel 110.
In the above embodiments, thelight sensing element 150 includes at least one of an image capture device, an optical fingerprint recognition module, and an infrared light sensor. Thephotosensitive element 150 is, for example, an image pickup device, i.e., a camera device, for picking up external image information. In this embodiment, thephotosensitive element 150 is a Complementary Metal Oxide Semiconductor (CMOS) image capture Device, and in some other embodiments, thephotosensitive element 150 may also be a Charge-coupled Device (CCD) image capture Device or other types of image capture devices. In other embodiments, thelight sensing element 150 may also be an optical fingerprint recognition module or an infrared light sensor, so as to realize a corresponding fingerprint recognition function or an infrared recognition function. Furthermore, in some alternative embodiments, thephotosensitive element 150 may include at least two of an image capture device, an optical fingerprint recognition module, and an infrared light sensor. Thereby having multiple light sensing functions at the same time.
According to the display device of the embodiment of the invention, at least a portion of the photosensitive surface PS of thephotosensitive element 150 is located in the second display area DA2, thebottom frame 121 of thebacklight module 120 includes thebottom plate 1211, and thebottom plate 1211 includes the first through hole H1 located in the second display area DA 2. When the light sensing function is needed, the external light can pass through thedisplay panel 110 of the second display area DA2 and the first through hole H1 of thebacklight module 120, and reach the light sensing surface PS of thelight sensing element 150. Thephotosensitive element 150 can recognize the received light to realize the corresponding photosensitive function.
An embodiment of the present invention further provides a control method for a display device, which is used for controlling the display device according to any one of the foregoing embodiments of the present invention.
In some embodiments, thephotosensitive element 150 includes an image capturing device, and the control method of the display device includes: in the normal display mode, the image capturing device is turned off, and the firstlight source 122 and the secondlight source 140 are both in a light emitting state; in the image capture mode, the image capture device is turned on, the firstlight source 122 is in a light emitting state, and the secondlight source 140 is in a non-light emitting state.
According to the control method of the display device of the embodiment of the invention, in the normal display mode, the firstlight source 122 and the secondlight source 140 are both in the light emitting state, the firstlight source 122 of thebacklight module 120 can provide backlight to thedisplay panel 110 of the first display area DA1, the display device further comprises thesleeve 130 and the secondlight source 140, wherein thesleeve 130 comprises thecylindrical part 131 which surrounds the periphery of the first through hole H1, and the secondlight source 140 is mounted on thesleeve 130 and can provide backlight to thedisplay panel 110 of the second display area DA 2. Both the first display area DA1 and the second display area DA2 of thedisplay panel 110 can display pictures, and the actual displayable area of thedisplay panel 110 in the normal display mode is increased. The secondlight sources 140 are located at the periphery of the first through hole H1, so that the secondlight sources 140 are prevented from directly irradiating thedisplay panel 110 in the second display area DA2, the display brightness of the second display area DA2 is prevented from being significantly higher than that of the first display area DA1, and the overall brightness uniformity of thedisplay panel 110 during normal display is improved to a certain extent.
In the image capturing mode, the external light can pass through thedisplay panel 110 of the second display area DA2 and the first through hole H1 of thebacklight module 120 to reach the photosensitive surface PS of thephotosensitive element 150. Thephotosensitive element 150 can recognize the received light to realize the corresponding photosensitive function. In the image capturing mode, the secondlight source 140 is in a non-light emitting state, so that the influence of the light of the secondlight source 140 on the image capturing process can be avoided, and the quality of the captured image can be improved.
According to the display device and the control method thereof, the first display area DA1 of thedisplay panel 110 can transmit light or display in different modes, the under-screen integration of thephotosensitive element 150 is facilitated, the displayable area of thedisplay panel 110 is not required to be sacrificed, and therefore the comprehensive screen display design is facilitated.
While the invention has been described with reference to the above embodiments, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (14)
1. A display device, comprising:
a first display area and a second display area, the first display area at least partially surrounding the second display area;
a display panel;
backlight unit is located display panel one side, backlight unit includes:
the bottom frame comprises a bottom plate and a first side plate, the bottom plate comprises a first through hole positioned in the second display area, and the first side plate is vertically arranged on the bottom plate and surrounds the first through hole; and
a first light source mounted on the bottom frame for providing a backlight to the display panel of the first display region;
the sleeve is connected to the bottom frame and departs from the display panel side, and comprises a cylindrical part which surrounds the periphery of the first through hole;
the surface of the bottom plate, which is far away from the display panel, and/or the inner wall surface of the sleeve comprise diffuse reflection surfaces;
a second light source mounted to the sleeve for providing backlight to the display panel of the second display region, wherein the second light source is located at an outer periphery of the first through hole; and
and the photosensitive element is positioned on one side of the backlight module, which deviates from the display panel, the photosensitive surface of the photosensitive element faces the display panel, and at least part of the photosensitive surface is positioned in the second display area.
2. The display device as claimed in claim 1, wherein the second light source comprises a second light source emitting surface disposed towards the bottom plate.
3. The display device according to claim 1, wherein the second light source includes a second flexible circuit board and a plurality of second light emitting elements on the second flexible circuit board, the plurality of second light emitting elements being arranged around a periphery of the first through hole;
the cylindrical portion is provided with an opening through which a part of the second flexible circuit board extends to an outer peripheral side of the cylindrical portion.
4. The display device according to claim 3, wherein the second light-emitting element is a side-emission type light-emitting element, and wherein the second flexible circuit board is connected to an inner wall surface of the cylindrical portion.
5. The display device according to claim 1, wherein the sleeve further comprises a connecting portion connected to a side of the cylindrical portion facing the backlight unit and extending toward an outer peripheral side of the cylindrical portion, the connecting portion being connected to a bottom plate of the backlight unit.
6. The display device according to claim 1, wherein the light sensing element comprises at least one of an image capture device, an optical fingerprint recognition module, and an infrared light sensor.
7. The display device according to claim 1, wherein the bottom frame further comprises a second side plate, the second side plate is erected on the bottom plate and is disposed around an outer contour of the bottom plate, and the backlight module further comprises:
the light guide plate is arranged on one side, facing the display panel, of the bottom plate and is positioned between the second side plate and the first side plate; and
a plurality of optical film layers arranged on one side of the light guide plate facing the display panel, the plurality of optical film layers being positioned between the second side plate and the first side plate,
the first light source is arranged on one side of the light guide plate in a direction parallel to the display panel, or the first light source is arranged on one side of the light guide plate departing from the display panel.
8. A display device, comprising:
a first display area and a second display area, the first display area at least partially surrounding the second display area;
a display panel;
backlight unit is located display panel one side, backlight unit includes:
the bottom frame comprises a bottom plate and a first side plate, the bottom plate comprises a first through hole positioned in the second display area, and the first side plate is vertically arranged on the bottom plate and surrounds the first through hole; and
a first light source installed at the bottom frame for providing a backlight to the display panel of the first display region;
the sleeve is connected to the bottom frame on the side facing away from the display panel and comprises a cylindrical part, and the cylindrical part surrounds the periphery of the first through hole;
a second light source mounted to the sleeve for providing backlight to the display panel of the second display region, wherein the second light source is located at an outer periphery of the first through hole; and
the photosensitive element is positioned on one side, away from the display panel, of the backlight module, a photosensitive surface of the photosensitive element faces the display panel, and at least part of the photosensitive surface is positioned in the second display area;
the sleeve further comprises a flat plate portion, the flat plate portion is connected to one side, away from the backlight module, of the cylindrical portion and extends towards the inner periphery side of the cylindrical portion, the flat plate portion comprises a second through hole, an orthographic projection of the outline of the second through hole on the display panel is located inside the orthographic projection of the outline of the first through hole on the display panel, and at least part of the photosensitive element penetrates through the second through hole.
9. The display device according to claim 8, wherein the second light source comprises a second flexible circuit board and a plurality of second light-emitting elements on the second flexible circuit board, the plurality of second light-emitting elements being arranged around a periphery of the first through hole;
the cylindrical portion is provided with an opening through which a part of the second flexible circuit board extends to an outer peripheral side of the cylindrical portion.
10. The display device according to claim 9, wherein the second light-emitting element is a top-emission light-emitting element, and the second flexible circuit board is connected to a surface of the flat plate portion facing the backlight module; or
The second light-emitting element is a side light-emitting type light-emitting element, and the second flexible circuit board is connected to the inner wall surface of the cylindrical portion.
11. The display device according to claim 8, wherein the sleeve further comprises a connecting portion connected to a side of the cylindrical portion facing the backlight unit and extending toward an outer peripheral side of the cylindrical portion, the connecting portion being connected to a bottom plate of the backlight unit.
12. The display device according to claim 8, wherein the light sensing element comprises at least one of an image capture device, an optical fingerprint recognition module, and an infrared light sensor.
13. The display device according to claim 8, wherein the bottom frame further comprises a second side plate, the second side plate is erected on the bottom plate and is disposed around an outer contour of the bottom plate, and the backlight module further comprises:
the light guide plate is arranged on one side, facing the display panel, of the bottom plate and is positioned between the second side plate and the first side plate; and
a plurality of optical film layers arranged on one side of the light guide plate facing the display panel, the plurality of optical film layers being positioned between the second side plate and the first side plate,
the first light source is arranged on one side of the light guide plate in a direction parallel to the display panel, or the first light source is arranged on one side of the light guide plate departing from the display panel.
14. A control method of a display device, characterized in that the control method is used for controlling the display device according to any one of claims 1 to 13, the photosensitive element includes an image pickup device, the control method includes:
in a normal display mode, the image acquisition device is turned off, and the first light source and the second light source are both in a light-emitting state;
in the image acquisition mode, the image acquisition device is started, the first light source is in a luminous state, and the second light source is in a non-luminous state.
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| CN202011077649.5ACN112130377B (en) | 2020-10-10 | 2020-10-10 | Display device and control method thereof |
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| CN202011077649.5ACN112130377B (en) | 2020-10-10 | 2020-10-10 | Display device and control method thereof |
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| CN112130377Btrue CN112130377B (en) | 2022-09-13 |
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| CN113703227B (en)* | 2021-09-23 | 2023-04-07 | 厦门天马微电子有限公司 | Display module and display device |
| CN114401331B (en)* | 2022-01-28 | 2024-08-27 | 厦门天马微电子有限公司 | Display module and electronic equipment |
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