CN114690300A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN114690300A
CN114690300A CN202210418586.8A CN202210418586A CN114690300A CN 114690300 A CN114690300 A CN 114690300A CN 202210418586 A CN202210418586 A CN 202210418586A CN 114690300 A CN114690300 A CN 114690300A
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China
Prior art keywords
display
lighting
area
display panel
light
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Granted
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CN202210418586.8A
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Chinese (zh)
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CN114690300B (en
Inventor
徐章茹
侯少军
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
    • B60R11/0235—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes of flat type, e.g. LCD
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/26—Reflecting filters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application provides a display panel and display device, display panel includes: the display module comprises a common display area and a lighting display area, wherein the lighting display area comprises a lighting shooting area and a pixel display area; the light splitting piece is arranged on the back side of the display module, corresponds to the lighting display area and is used for allowing one of visible light and infrared light to pass through and reflecting the other one of the visible light and the infrared light; the light-splitting member has a first side surface and a second side surface; the infrared camera faces the first side face and is used for receiving infrared light penetrating through the lighting shooting area; and the lighting display light source faces the second side surface and is used for providing backlight for the pixel display area. The display panel that this application embodiment provided carries out real time monitoring to the condition in the car when normally showing, has improved the user and has used experience sense.

Description

Display panel and display device
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
The existing vehicle-mounted display screen is provided with an infrared camera which can be used for acquiring an infrared light source in a vehicle cabin so as to monitor the conditions in the vehicle in real time. Present vehicle-mounted display screen, for the screen that improves the display screen accounts for than, adopts the camera technique under the screen to place infrared camera in display panel's below usually, but current vehicle-mounted display screen because the structure is too simple, when the display screen is when the display state, infrared camera can not normally shoot, and customer uses and experiences not highly.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device to solve the problem that the current display panel cannot monitor the conditions in the vehicle in real time while displaying normally.
In a first aspect, an embodiment of the present application provides a display panel, including:
the display module comprises a common display area and a lighting display area, wherein the lighting display area comprises a lighting shooting area and a pixel display area;
the light splitting piece is arranged on the back side of the display module, corresponds to the lighting display area and is used for allowing one of visible light and infrared light to pass through and reflecting the other one of the visible light and the infrared light; the light-splitting member has a first side surface and a second side surface;
the infrared camera faces the first side face and is used for receiving infrared light penetrating through the lighting shooting area;
and the lighting display light source faces the second side surface and is used for providing backlight for the pixel display area.
Optionally, the first side faces the lighting display area, and the second side faces away from the lighting display area; the light splitting piece is used for reflecting infrared light and transmitting visible light.
Optionally, the first side faces away from the lighting display area, and the second side faces towards the lighting display area; the light splitting piece is used for reflecting visible light and transmitting infrared light.
Optionally, an included angle between the light splitting piece and the display module is 40-50 °.
Optionally, the display panel further includes a supporting member, the supporting member has a supporting surface, an included angle between the supporting surface and the display module is 40 ° to 50 °, and the light splitting member is mounted on the supporting surface.
Optionally, the lighting display area includes a plurality of sub-areas, the lighting camera area includes a plurality of lighting camera units, the pixel display area includes a plurality of pixel display units, and each sub-area includes at least one lighting camera unit and at least one pixel display unit.
Optionally, the projection of the lighting camera unit and the projection of the pixel display unit on the display panel are square.
Optionally, the ratio of the area of the projection of the lighting image capturing unit and the pixel display unit on the display panel in the sub-area is 2:1-4: 1.
Optionally, the number of the lighting imaging units and the number of the pixel display units in the sub-area are at least two, and each lighting imaging unit and each pixel display unit are alternately arranged in the sub-area.
Optionally, the projection of the lighting camera unit on the display panel is circular, and the pixel display unit is surrounded by the lighting camera unit.
Optionally, the projection of the pixel display unit on the display panel is circular, the number of the pixel display units is multiple, the pixel display units are arranged at intervals and in a matrix, and the portion of the sub-area where the pixel display unit is not arranged forms the lighting camera unit.
Optionally, the display module includes a color resistance layer disposed in the lighting and shooting area.
Optionally, the color resistance layer is formed by stacking any two of a red color resistance layer, a green color resistance layer and a blue color resistance layer.
In a second aspect, embodiments of the present application further provide a display device, including the display panel according to any one of the above aspects.
According to the display panel provided by the embodiment of the application, one of the visible light and the infrared light passes through the light splitting piece, the other one of the visible light and the infrared light reflects the light splitting piece, and the light splitting piece is arranged corresponding to the lighting display area, so that the infrared light can reach the infrared camera under the action of the light splitting piece after passing through the lighting camera area and is received by the infrared camera, and the infrared camera can monitor the external condition of the display device in real time; meanwhile, visible light emitted by the lighting display light source can be emitted to the pixel display area under the action of the light splitting piece so as to provide backlight for the pixel display area and realize the display function of the pixel display area. Therefore, the lighting display area can monitor the conditions in the vehicle in real time while displaying normally, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic plan view of a display panel according to an embodiment of the present application.
Fig. 2 is a schematic cross-sectional structure diagram of an embodiment of a display panel according to the present application.
Fig. 3 is a schematic cross-sectional structure diagram of another embodiment of a display panel according to the present application.
Fig. 4 is a schematic cross-sectional view of a sub-region of a display panel according to a first embodiment of the present disclosure.
Fig. 5 is a schematic cross-sectional view of a sub-region of a display panel according to a second embodiment of the present disclosure.
Fig. 6 is a schematic cross-sectional view of a sub-region of a display panel according to a third embodiment of the present application.
Fig. 7 is a schematic cross-sectional view of a fourth embodiment of a sub-region of a display panel provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a display panel and a display device to solve the problem that the current display panel cannot monitor the conditions in the vehicle in real time while displaying normally. The following description will be made with reference to the accompanying drawings.
The display panel provided by the embodiment of the application can be applied to a display device, wherein the display device can be any product or component with a display function, such as a mobile phone, a tablet personal computer, a television, a vehicle-mounted display screen and the like.
In order to more clearly explain the structure of the display panel, the display panel will be described below with reference to the accompanying drawings.
For example, please refer to fig. 1 to 3, fig. 1 is a schematic plan view of a display panel according to an embodiment of the present disclosure. Fig. 2 is a schematic cross-sectional structure diagram of an embodiment of a display panel according to the present application. Fig. 3 is a schematic cross-sectional structure diagram of another embodiment of a display panel according to the present application. The display panel includes a display module, a light-splitting member 300, an infrared camera 400, and lighting display light. The display module comprises a common display area 100 and a lighting display area 200, wherein the lighting display area 200 comprises a lighting camera area 210 and a pixel display area 220; the light splitting member 300 is installed on the back side of the display module, the light splitting member 300 is disposed corresponding to the lighting display area 200, and the light splitting member 300 is used for allowing one of visible light and infrared light to pass through and reflecting the other one; the light-splitting element 300 has a first side 310 and a second side 320; the infrared camera 400 faces the first side 310 to receive the infrared light passing through the lighting camera area 210; the lighting display light source 500 faces the second side surface 320 for providing backlight to the pixel display area 220.
The general display area 100 may sequentially include the TFT substrate 110, the first liquid crystal layer 120, and the color film layer 130 from a direction close to the light splitting member 300 to a direction away from the light splitting member 300, so as to implement a display function. The color film layer 130 includes an RGB color resist layer and a light-shielding layer. The pixel display area 220 has a pixel design, so that the pixel display area 220 can also realize a display function; the layers of the pixel display area 220 may be the same as those of the common display area 100, that is, the pixel display area 220 may also sequentially include the TFT substrate 110, the first liquid crystal layer 120 and the color film layer 130 from the direction close to the light splitting element 300 to the direction far from the light splitting element 300, and the circuit routing manner of the pixel display area 220 may be determined according to the position relationship between the pixel display area 220 and the lighting camera area 210, for example, the routing of the pixel display area 220 may be implemented by surrounding routing, jumping wires, and the like; the lighting image pick-up region 210 is a transparent region, so that infrared light outside the display panel can transmit the lighting image pick-up region 210, the lighting image pick-up region 210 can sequentially comprise a first transparent layer 211, a second liquid crystal layer 212 and a second transparent layer 213 from the direction close to the light splitting element 300 to the direction far away from the light splitting element 300, the first transparent layer 211 can be arranged adjacent to the TFT substrate 110, the second liquid crystal layer 212 can be arranged adjacent to the first liquid crystal layer 120, the second transparent layer 213 can be arranged adjacent to the color film layer 130, during actual preparation, the thicknesses and materials of the second liquid crystal layer 212 and the first liquid crystal layer 120 can be the same, and the two can be integrally formed.
Regarding the light splitter 300, the material of the light splitter 300 may be mof material or other materials, which is used for allowing one of visible light and infrared light to pass through and reflecting the other one, so that the infrared light can reach the infrared camera 400 under the action of the light splitter 300 after passing through and lighting the camera area 210, so as to be received by the infrared camera 400, so that the infrared camera 400 can monitor the condition outside the display device in real time; meanwhile, the visible light emitted by the lighting display light source 500 can be emitted to the pixel display area 220 under the action of the light splitting element 300, so as to provide backlight for the pixel display area 220, thereby realizing the display function of the pixel display area 220. Two examples are given below for a detailed description.
In some examples, the first side 310 faces the daylighting display area 200 and the second side 320 faces away from the daylighting display area 200; the light splitter 300 is used for reflecting infrared light and transmitting visible light. In this example, the infrared light reaches the infrared camera 400 by reflection of the light-splitting member 300, and the visible light is emitted to the pixel display area 220 through the light-splitting member 300.
In other examples, the first side 310 faces away from the lighted display area 200 and the second side 320 faces toward the lighted display area 200; the light splitter 300 is used for reflecting visible light and transmitting infrared light. In this example, the infrared light-transmitting splitter 300 reaches the infrared camera 400, and the visible light is reflected by the splitter 300 and directed to the pixel display area 220.
Wherein, beam splitter 300 can have multiple selection in display module's angle, specifically can be according to infrared camera 400 and daylighting display light source 500's mounted position and angle and decide, beam splitter 300 can be 40-50 with display module's contained angle, for example be 45, so infrared camera 400 and daylighting display light source 500 can one set up with display module relatively, another sets up with display module is perpendicular, so, do benefit to infrared camera 400 and daylighting display light source 500 of installation, and improved display panel overall structure's regularity and reliable stability.
In order to improve the installation stability of the light splitter 300, in some examples, the display panel further includes a support member 600, the support member 600 has a support surface, the support surface and the display module form an angle of 40 ° to 50 °, and the light splitter 300 is installed on the support surface. The supporting member 600 increases the contact area of the light splitting member 300 on the supporting surface, improves the installation stability of the light splitting member 300, enables the light splitting member 300 to work stably and reliably, and provides stability of the display panel.
According to the display panel provided by the embodiment of the application, the light splitting piece 300 for allowing one of visible light and infrared light to pass through and reflecting the other one is arranged, and the light splitting piece 300 is arranged corresponding to the lighting display area 200, so that the infrared light transmitting and lighting camera area 210 can reach the infrared camera 400 under the action of the light splitting piece 300 to be received by the infrared camera 400, and the infrared camera 400 can monitor the external condition of the display device in real time; meanwhile, the visible light emitted by the lighting display light source 500 can be emitted to the pixel display area 220 under the action of the light splitting element 300, so as to provide backlight for the pixel display area 220, thereby realizing the display function of the pixel display area 220. Therefore, the lighting display area 200 can monitor the conditions in the vehicle in real time while displaying normally, and the user experience is improved.
In order to more clearly explain the structure of the lighted display area 200, the lighted display area 200 will be described with reference to the accompanying drawings.
The lighting display area 200 includes a plurality of sub-areas 201, the lighting camera area 210 includes a plurality of lighting camera units 2101, the pixel display area 220 includes a plurality of pixel display units 2201, and each of the sub-areas 201 includes at least one lighting camera unit 2101 and at least one pixel display unit 2201. It is understood that the distribution of the lighting image pickup units 2101 and the pixel display units 2201 in the sub-area 201 is different, and the monitoring effect and the display effect of the lighting display area 200 are also different. The following description is made from different embodiments.
In a first example, please refer to fig. 4, wherein fig. 4 is a schematic cross-sectional view of a sub-region 201 of a display panel according to an embodiment of the present disclosure. The projection of the light imaging unit 2101 and the pixel display unit 2201 on the display panel is square, and the area ratio of the projection of the light imaging unit 2101 and the pixel display unit 2201 on the display panel in the sub-region 201 is 2:1-4:1, and may be, for example, 3: 1. In this example, the area of the lighting camera unit 2101 is larger than that of the pixel display unit 2201, and a larger area is provided for infrared light to penetrate through, so as to improve the working effect of the infrared camera 400, thereby improving the monitoring effect of the display panel.
In a second example, please refer to fig. 5, and fig. 5 is a schematic cross-sectional view of a sub-region 201 of a display panel according to a second embodiment of the present disclosure. The projection of the light imaging unit 2101 and the pixel display unit 2201 on the display panel is square, the number of the light imaging units 2101 and the number of the pixel display units 2201 in the sub-area 201 are at least two, and the light imaging units 2101 and the pixel display units 2201 are alternately arranged in the sub-area 201. Therefore, the pixels of the lighting camera unit 2101 and the pixel display unit 2201 are uniformly distributed, the pixel density of the lighting display area 200 is improved while the monitoring effect of the lighting display area 200 is ensured, the pixels of the lighting display area 200 are uniformly distributed, the display granular sensation of the lighting display area 200 is reduced, and the display effect of the lighting display area 200 is improved.
In a third example, please refer to fig. 6, and fig. 6 is a schematic cross-sectional view of a sub-region 201 of a display panel according to a third embodiment of the present disclosure. The projection of the lighting imaging unit 2101 on the display panel is circular, and the pixel display unit 2201 is provided around the lighting imaging unit 2101. So set up for infrared light is concentrated sees through circular shape daylighting camera unit 2101, has promoted the penetrating effect of infrared light, thereby has improved display panel's monitoring effect.
In a fourth example, please refer to fig. 7, and fig. 7 is a schematic cross-sectional view of a fourth embodiment of a sub-region 201 of a display panel according to an embodiment of the present disclosure. The projection of the pixel display unit 2201 on the display panel is circular, the number of the pixel display units 2201 is multiple, the pixel display units 2201 are arranged at intervals and in a matrix, and the part of the sub-region 201 where the pixel display unit 2201 is not arranged forms a lighting image pickup unit 2101. The arrangement mode of this example makes daylighting camera unit 2101 and pixel display element 2201 all can distribute evenly, has improved the display effect of daylighting display area 200 when guaranteeing the monitoring effect of daylighting display area 200, has improved user experience and has felt.
In some examples, to reduce the difference between the lighting camera area 210 and the lighting display area 200 and the normal display area 100, the display module includes a color barrier layer 214 disposed in the lighting camera area 210. Because the lighting display area 200 and the common display area 100 are provided with the color film layer 130, the color film layer 130 includes the color resistor, the color resistor layer 214 is also arranged in the lighting camera area 210 in the present example, the color resistor layer 214 is arranged in the second light-transmitting area of the lighting camera area 210, the light leakage and the metal reflection can be effectively blocked by utilizing the light filtering effect of the color resistor layer 214, the lighting camera area 210, the lighting display area 200 and the common display area 100 are kept as consistent as possible even under the condition that the display panel does not display, and the color resistor slightly affects the transmission of infrared light, and the infrared light transmission effect cannot be affected.
The color-resist layer 214 may be the same as the color resist in the color film layer 130, that is, the RGB color resist, so that the lighting image pick-up area 210 is the same as the lighting display area 200 and the normal display area 100 when the display panel is not displaying.
In other examples, the color resist layer 214 is formed by stacking any two of a red color resist layer 214, a green color resist layer 214, and a blue color resist layer 214. The superposed color resistors have better light ray blocking effect, and the transmittance of the infrared light transmission and lighting shooting area 210 is improved, so that the monitoring effect of the display panel is improved.
Embodiments of the present application also provide a display device including the display panel of the embodiments.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. The display panel provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in this document by applying specific examples, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (14)

1. A display panel, comprising:
the display module comprises a common display area and a lighting display area, wherein the lighting display area comprises a lighting shooting area and a pixel display area;
the light splitting piece is arranged on the back side of the display module, corresponds to the lighting display area and is used for allowing one of visible light and infrared light to pass through and reflecting the other one of the visible light and the infrared light; the light-splitting member has a first side surface and a second side surface;
the infrared camera faces the first side face and is used for receiving infrared light penetrating through the lighting shooting area;
and the lighting display light source faces the second side surface and is used for providing backlight for the pixel display area.
2. The display panel according to claim 1, wherein the first side faces the lighted display area, and the second side faces away from the lighted display area; the light splitting piece is used for reflecting infrared light and transmitting visible light.
3. The display panel according to claim 1, wherein the first side faces away from the lighted display area, and the second side faces toward the lighted display area; the light splitting piece is used for reflecting visible light and transmitting infrared light.
4. The display panel according to any one of claims 2 to 3, wherein the angle between the light splitter and the display module is 40 ° to 50 °.
5. The display panel according to claim 4, wherein the display panel further comprises a supporting member, the supporting member has a supporting surface, an included angle between the supporting surface and the display module is 40 ° to 50 °, and the light splitter is mounted on the supporting surface.
6. The display panel according to claim 1, wherein the lighting display area comprises a plurality of sub-areas, the lighting camera area comprises a plurality of lighting camera units, the pixel display area comprises a plurality of pixel display units, and each of the sub-areas comprises at least one lighting camera unit and at least one pixel display unit.
7. The display panel according to claim 6, wherein projections of the lighting imaging unit and the pixel display unit on the display panel are square.
8. The display panel according to claim 7, wherein a ratio of an area of a projection of the lighting imaging unit and the pixel display unit on the display panel in the sub-area is 2:1-4: 1.
9. The display panel according to claim 7, wherein the number of the lighting imaging units and the number of the pixel display units in the sub-area are at least two, respectively, and each of the lighting imaging units and each of the pixel display units are alternately arranged in the sub-area.
10. The display panel according to claim 6, wherein a projection of the lighting camera unit on the display panel is circular, and the pixel display unit is provided around the lighting camera unit.
11. The display panel according to claim 6, wherein the projection of the pixel display unit on the display panel is circular, the number of the pixel display units is plural, the plural pixel display units are arranged at intervals and in a matrix, and a portion of the sub-area where the pixel display unit is not arranged forms the lighting imaging unit.
12. The display panel of claim 1, wherein the display module comprises a color resist layer disposed in the lighting camera area.
13. The display panel according to claim 12, wherein the color resist layer is formed by laminating any two of a red color resist layer, a green color resist layer, and a blue color resist layer.
14. A display device characterized in that it comprises a display panel according to any one of claims 1 to 13.
CN202210418586.8A 2022-04-20 2022-04-20 Display panel and display device Active CN114690300B (en)

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