WO2023178752A1 - 显示装置及其亮度调节方法 - Google Patents

显示装置及其亮度调节方法 Download PDF

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Publication number
WO2023178752A1
WO2023178752A1 PCT/CN2022/086615 CN2022086615W WO2023178752A1 WO 2023178752 A1 WO2023178752 A1 WO 2023178752A1 CN 2022086615 W CN2022086615 W CN 2022086615W WO 2023178752 A1 WO2023178752 A1 WO 2023178752A1
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WO
WIPO (PCT)
Prior art keywords
adjustment
area
light
layer
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/086615
Other languages
English (en)
French (fr)
Inventor
柏义波
李峻
杨德林
冯洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US17/772,603 priority Critical patent/US20240169946A1/en
Publication of WO2023178752A1 publication Critical patent/WO2023178752A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • 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
    • 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
    • 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
    • G02F1/13338—Input devices, e.g. touch panels
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
    • 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
    • G09F9/33—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 being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

Definitions

  • the present invention relates to the field of display technology, and in particular to a display device and a brightness adjustment method thereof.
  • Under-screen camera technology increases the screen-to-body ratio by placing the camera below the screen, while making the entire display device more aesthetically pleasing, so it is becoming more and more widely used.
  • Existing under-screen camera technology generally opens a hole in the display device corresponding to the camera, and at the same time makes the area of the screen corresponding to the camera pixel-free or reduces the pixel arrangement to improve the light transmittance of the screen in this area and achieve under-screen photography. Function.
  • the opening design and pixel arrangement design of the existing under-screen camera technology in the display device corresponding to the camera area will lead to inconsistent transmittance or brightness in the display device corresponding to the camera area and the display area outside the camera area, resulting in even When a black screen or no display is displayed, the screen brightness in the camera area will also be significantly different from that in other areas, causing the blind hole in this position to be easily observed, affecting the aesthetics of the screen.
  • the present invention provides a display device and a brightness adjustment method thereof, which can solve the technical problem of uneven screen brightness in existing display devices due to differences in luminous flux between a camera area and a display area other than the camera area.
  • An embodiment of the present invention provides a display device.
  • the display device has a light emitting surface.
  • the display device includes a camera area and a display area surrounding the camera area.
  • the display device further includes:
  • a light transmittance adjustment layer is provided on the side of the display panel close to the light-emitting surface.
  • the light transmittance adjustment layer includes a first adjustment area corresponding to the camera area and a second adjustment area corresponding to the display area. regulation zone;
  • the display device adjusts the brightness of the light-emitting surface by adjusting the light transmittance of the first adjustment area and/or the second adjustment area.
  • the light transmittance adjustment layer includes a driving wiring layer and a light adjustment layer, and the light adjustment layer receives a voltage input from the driving wiring layer to adjust the light. Transmittance adjusts the light transmittance of the layer.
  • the driving wiring layer includes a first driving wiring corresponding to the first adjustment area and a second driving wiring corresponding to the second adjustment area.
  • the light adjustment layer receives the voltage input from the first driving line and/or the second driving line to adjust the light transmittance of the corresponding area of the light transmittance adjustment layer.
  • the first driving traces include a first trace arranged along a first direction and a second trace arranged along a second direction, and the first trace and The second wiring is located on the same side or on a different side of the light adjustment layer.
  • the light adjustment layer receives the voltage input from the first wiring and the second wiring to adjust the voltage of the first adjustment area. light transmittance;
  • the second driving traces include third traces arranged along the first direction and fourth traces arranged along the second direction.
  • the third traces and the fourth traces are located on the On the same side or on different sides of the light adjustment layer, the light adjustment layer receives the voltage input from the third wiring and the fourth wiring to adjust the light transmittance of the second adjustment area; wherein, the The first direction and the second direction are perpendicular to each other.
  • the light adjustment layer is a liquid crystal layer or an electrochromic layer.
  • the light transmittance adjustment layer further includes a first substrate layer and a second substrate layer that are oppositely arranged, and the light adjustment layer is provided between the first substrate layer and the second substrate layer. Between the second substrate layers, the driving wiring layer is disposed on a surface of at least one of the first substrate layer and the second substrate layer facing the light adjustment layer.
  • An embodiment of the present invention also provides a brightness adjustment method for a display device as described above.
  • the brightness adjustment method includes the following steps:
  • the display status information includes a display status and a non-display status
  • S3 Adjust the light transmittance of the first adjustment area and/or the second adjustment area according to the target brightness.
  • S1 when the acquired display status information is a display status, S1 further includes the following steps:
  • the S2 includes the following steps:
  • the grayscale data includes the first part of the grayscale data of the input picture corresponding to the camera area, and includes the second part of the grayscale data of the input picture corresponding to the display area;
  • S22 Determine the target brightness of the light-emitting surface corresponding to the camera area based on the first partial gray-scale data, and determine the target brightness of the light-emitting surface corresponding to the display area based on the second partial gray-scale data.
  • the light transmittance adjustment layer includes a driving wiring layer and a light adjustment layer
  • the driving wiring layer includes a first driving wiring corresponding to the first adjustment area
  • the second drive wiring corresponding to the second adjustment area the S3 includes the following steps:
  • the light adjustment layer receives the voltage input from the first driving line to adjust the light transmittance of the first adjustment area, and/or according to the target brightness of the display area , the light adjustment layer receives the voltage input from the second driving line to adjust the light transmittance of the second adjustment area.
  • S1 when the obtained display status information is in a non-display state, S1 further includes the following steps:
  • the S2 includes the following steps:
  • S22 Determine the target brightness of the light-emitting surface corresponding to the camera area and the display area based on the grayscale data.
  • the light transmittance adjustment layer includes a driving wiring layer and a light adjustment layer
  • the driving wiring layer includes a first driving wiring corresponding to the first adjustment area
  • the second drive wiring corresponding to the second adjustment area the S3 includes the following steps:
  • the light adjustment layer receives the voltage input from the first driving line to adjust the light transmittance of the first adjustment area, and/or according to the target brightness of the display area , the light adjustment layer receives the voltage input from the second driving line to adjust the light transmittance of the second adjustment area.
  • An embodiment of the present invention also provides a display device.
  • the display device has a light emitting surface.
  • the display device includes a camera area and a display area surrounding the camera area.
  • the display device further includes:
  • the light transmittance of the first adjustment area and the light transmittance of the second adjustment area can be adjusted independently, and the display device adjusts the first adjustment area and/or the second adjustment area.
  • the light transmittance adjusts the brightness of the light exit surface.
  • the light transmittance adjustment layer includes a driving wiring layer and a light adjustment layer, and the light adjustment layer receives a voltage input from the driving wiring layer to adjust the light. Transmittance adjusts the light transmittance of the layer.
  • the driving wiring layer includes a first driving wiring corresponding to the first adjustment area and a second driving wiring corresponding to the second adjustment area.
  • the light adjustment layer receives the voltage input from the first driving line and/or the second driving line to adjust the light transmittance of the corresponding area of the light transmittance adjustment layer.
  • the first driving traces include a first trace arranged along a first direction and a second trace arranged along a second direction, and the first trace and The second wiring is located on the same side or on a different side of the light adjustment layer.
  • the light adjustment layer receives the voltage input from the first wiring and the second wiring to adjust the voltage of the first adjustment area. light transmittance;
  • the second driving traces include third traces arranged along the first direction and fourth traces arranged along the second direction.
  • the third traces and the fourth traces are located on the On the same side or on different sides of the light adjustment layer, the light adjustment layer receives the voltage input from the third wiring and the fourth wiring to adjust the light transmittance of the second adjustment area; wherein, the The first direction and the second direction are perpendicular to each other.
  • the light adjustment layer is a liquid crystal layer or an electrochromic layer.
  • the light transmittance adjustment layer further includes a first substrate layer and a second substrate layer that are oppositely arranged, and the light adjustment layer is provided between the first substrate layer and the second substrate layer. Between the second substrate layers, the driving wiring layer is disposed on a surface of at least one of the first substrate layer and the second substrate layer facing the light adjustment layer.
  • a light transmittance adjustment layer is provided on the side of the display panel close to the light emitting surface, and the light transmittance adjustment layer is divided into corresponding camera areas
  • the first adjustment area and the second adjustment area corresponding to the display area, the light transmittance adjustment layer can realize the zone control of the light transmittance, by adjusting the first adjustment area and/or the second adjustment area
  • the light transmittance can adjust the luminous flux emitted from the display panel to the light-emitting surface of the display device, so that the brightness of different areas of the light-emitting surface remains consistent, and the brightness of the light-emitting surface of the display device can be adjusted. , thereby solving the problem of uneven brightness of the light-emitting surface of the display device caused by differences in luminous flux in different areas of the display panel.
  • Figure 1 is a schematic structural diagram of a display device provided by an embodiment of the present invention.
  • Figure 2 is a schematic cross-sectional view of a display device provided in Embodiment 1 of the present invention.
  • Figure 3 is a schematic cross-sectional view of a display device provided in Embodiment 2 of the present invention.
  • Figure 4 is a schematic cross-sectional view of the light transmittance adjustment layer provided by an embodiment of the present invention.
  • Figure 5 is a partial schematic diagram of a driving wiring layer provided by an embodiment of the present invention.
  • Figure 6 is a schematic cross-sectional view of the light transmittance adjustment layer provided by the embodiment of the present invention when no voltage is applied;
  • Figure 7 is a schematic cross-sectional view of the light transmittance adjustment layer provided by an embodiment of the present invention when a voltage is applied;
  • FIG. 8 is a flow chart of a brightness adjustment method of a display device according to an embodiment of the present invention.
  • an embodiment of the present invention provides a display device 1 .
  • the display device 1 has a light emitting surface 1A.
  • the display device 1 includes a camera area 100 and a display area 200 surrounding the camera area 100 .
  • the display device 1 further includes a display panel 10 and a light transmittance adjustment layer 20 .
  • the light transmittance adjustment layer 20 is disposed on a side of the display panel 10 close to the light-emitting surface 1A.
  • the light transmittance adjustment layer 20 includes a first adjustment area 201 corresponding to the camera area 100 and a second adjustment area 202 corresponding to the display area 200 . Wherein, the light transmittance of the first adjustment area 201 and the light transmittance of the second adjustment area 202 can be adjusted independently.
  • the display device 1 adjusts the first adjustment area 201 and/or the The light transmittance of the second adjustment area 202 is used to adjust the brightness of the light exit surface 1A.
  • the definition of the camera area 100 and the display area 200 in the embodiment of the present application is from the perspective of area division.
  • the camera area 100 can actually be designed without pixels according to the type of the display panel 10 Or reduce the pixel density design, that is, the camera area 100 and the display area 200 may both have a display function, or the camera area 100 may not have a display function.
  • the light transmittance adjustment layer 20 is provided on the side of the display panel 10 close to the light emission surface, and the light transmittance adjustment layer 20 is divided into first adjustment areas corresponding to the camera area 100 201 and the second adjustment area 202 corresponding to the display area 200.
  • the light transmittance of the light transmittance adjustment layer 20 can be controlled by zones.
  • the first adjustment area 201 of the light transmittance adjustment layer 20 And/or the light transmittance of the second adjustment area 202 can adjust the luminous flux emitted from the display panel 10 to the light-emitting surface 1A of the display device, so that the brightness of different areas of the light-emitting surface 1A remains consistent, achieving The brightness of the light-emitting surface 1A of the display device 1 is adjusted to solve the problem of uneven brightness of the light-emitting surface of the display device caused by differences in luminous flux in different areas of the display panel.
  • the display device 1 may be a liquid crystal display device, an OLED display device, a Micro-LED display device or a Mini-LED display device, but is not limited thereto.
  • the display device 1 includes a camera area 100 and a display area 200 arranged around the camera area 100 . It can be understood that the display area 200 is used to display images; the camera area 100 is used for camera shooting and can also be used to display images.
  • FIG. 2 is a schematic cross-sectional view of a display device according to Embodiment 1 of the present invention.
  • the display device 1 includes: a display panel 10 , a light transmittance adjustment layer 20 , a backlight module 30 and a camera 40 .
  • the display panel 10 is a liquid crystal display panel.
  • the light transmittance adjustment layer 20 is disposed on a side of the display panel 10 close to the light emitting surface 1A.
  • the backlight module 30 is disposed on a side facing away from the display panel 10 . One side of the light surface 1A is shown. Wherein, the backlight module 30 is provided with an opening penetrating the backlight module 30 at a position corresponding to the camera area 100 , and the camera 40 is located at the opening.
  • the display panel 10 may be provided with blind holes corresponding to the position of the camera area 100 , and the display panel 10 may be provided with pixels or no pixels corresponding to the camera area 100 .
  • the display panel 10 is configured with pixels corresponding to the camera area 100, in order to ensure the shooting performance of the camera, usually the pixel density of the display panel 10 corresponding to the camera area 100 is smaller than the pixel density corresponding to the display area 200. .
  • the display panel 10 in this area has no backlight/less backlight illumination. Therefore, the display panel 10 corresponds to the camera area.
  • the luminous flux of 100 is different from the luminous flux of the display panel 10 corresponding to the display area 200 .
  • the blind hole design on the display panel 10 even when the display device is not displaying, the blind hole in the camera area 100 can be easily observed, affecting the aesthetics of the screen.
  • a light transmittance adjustment layer 20 is provided on the side of the display panel 10 close to the light exit surface 1A.
  • the first adjustment area 201 and/or the light transmittance adjustment layer 20 Or the light transmittance of the second adjustment area 202 can adjust the luminous flux emitted from the display panel 10 to the light-emitting surface 1A of the display device, so that the brightness of different areas of the light-emitting surface 1A remains consistent, achieving all
  • the brightness adjustment of the light-emitting surface 1A of the display device 1 improves the display effect and also prevents blind holes from being easily observed.
  • FIG. 3 is a schematic cross-sectional view of a display device according to Embodiment 2 of the present invention.
  • the display device 1 includes a display panel 10 , a light transmittance adjustment layer 20 and a camera 40 .
  • the display panel 10 may be an OLED display panel, a Micro-LED display panel or a Mini-LED display panel, but is not limited thereto.
  • the light transmittance adjustment layer 20 is disposed on a side of the display panel 10 close to the light emitting surface 1A
  • the camera 40 is disposed on a side of the display panel 10 away from the light emitting surface 1A, and the camera 40 Set corresponding to the camera area 100.
  • the display panel 10 may be provided with blind holes at positions corresponding to the camera area 100 , and the display panel 10 may be provided with pixels corresponding to the camera area 100 , or may not be provided with pixels.
  • the display panel 10 is configured with pixels corresponding to the camera area 100 , the pixel density of the display panel 10 corresponding to the camera area 100 is smaller than the pixel density corresponding to the display area 200 .
  • the display panel 10 since the display panel 10 has no pixel design corresponding to the camera area 100 or the pixel density is smaller than the pixel density of the display area 200 , the luminous flux of the display panel 10 corresponding to the camera area 100 is corresponding to the display panel 10 The luminous flux of the display area 200 is different. In addition, when the display device is not displaying, the blind hole in the camera area 100 can be easily observed.
  • a light transmittance adjustment layer 20 is provided on the side of the display panel 10 close to the light exit surface 1A.
  • the first adjustment area 201 and/or the light transmittance adjustment layer 20 Or the light transmittance of the second adjustment area 202 can adjust the luminous flux emitted from the display panel 10 to the light-emitting surface 1A of the display device, so that the brightness of different areas of the light-emitting surface 1A remains consistent, achieving all
  • the brightness adjustment of the light-emitting surface 1A of the display device 1 improves the display effect and also prevents blind holes from being easily observed.
  • the light transmittance adjustment layer 20 includes: a first substrate layer 203 and a second substrate layer 206 arranged oppositely, a driving wiring layer 204 located between the first substrate layer 203 and the second substrate layer 206, and a light adjustment layer 204.
  • the driving wiring layer 204 may be disposed on a surface of at least one of the first substrate layer 203 and the second substrate layer 206 facing the light adjustment layer 205 .
  • the driving wiring layer 204 is disposed on the surface of the first substrate layer 203 facing the light adjustment layer 205 .
  • the light adjustment layer 205 receives the voltage input from the driving wiring layer 204 to adjust the light transmittance of the light transmittance adjustment layer 20 .
  • the light transmittance adjustment layer 20 may be a glass cover plate, and the first substrate layer 203 and the second substrate layer 206 are both glass substrate layers. That is to say, in this embodiment, the driving wiring layer 204 and the light adjustment layer 205 can be sandwiched between the glass cover plate.
  • the light transmittance adjustment layer 20 may be a polarizer, and the first substrate layer 203 and the second substrate layer 206 are both polarizing layers. That is to say, in this embodiment, the driving wiring layer 204 and the light adjustment layer 205 can be sandwiched between the polarizer.
  • the light adjustment layer 205 is a liquid crystal layer, and the liquid crystal layer is flipped by a voltage applied to the driving wiring layer 204 to adjust the transmittance of light.
  • the light adjustment layer 205 is an electrochromic layer, and the electrochromic layer adjusts the transmittance of light through a voltage applied to the driving wiring layer 204 .
  • FIG. 5 is a partial schematic diagram of a driving wiring layer provided by an embodiment of the present invention.
  • the driving wiring layer 204 includes a first driving wiring 204a corresponding to the first adjustment area 201 and a second driving wiring 204b corresponding to the second adjustment area 202.
  • the light adjustment layer 205 is received from the The voltage input by the first driving line 204a and/or the second driving line 204b adjusts the light transmittance of the corresponding area of the light transmittance adjustment layer 20.
  • the first driving trace 204a includes a first trace 2041 arranged along a first direction and a second trace 2042 arranged along a second direction.
  • the first trace 2041 and the second trace 2042 is located on the same side or on a different side of the light adjustment layer 205.
  • the light adjustment layer 205 receives the voltage input from the first wiring 2041 and the second wiring 2042 to adjust the voltage of the first adjustment area 201.
  • the second driving trace 204b includes a third trace 2043 arranged along the first direction and a fourth trace 2044 arranged along the second direction.
  • the line 2044 is located on the same side or on a different side of the light adjustment layer 205.
  • the light adjustment layer 205 receives the voltage input from the third line 2043 and the fourth line 2044 to adjust the second adjustment area 202. of light transmittance.
  • the first direction and the second direction are perpendicular to each other.
  • Figure 6 is a schematic cross-sectional view of the light transmittance adjustment layer provided by an embodiment of the present invention when no voltage is applied.
  • Figure 7 is a cross-sectional view of the light transmittance adjustment layer provided by an embodiment of the present invention when a voltage is applied.
  • the display device is a liquid crystal display device as an example.
  • the light transmittance of the display panel 10 corresponding to the camera area 100 is lower than the light transmittance corresponding to the display area 200 .
  • the liquid crystal molecules in the light adjustment layer 205 are arranged at a preset tilt angle. At this time, the light transmittance adjustment layer 20 has a certain degree of transmittance.
  • the liquid crystal layer causes the liquid crystal corresponding to the first adjustment area to flip at a first angle through the voltage applied to the first driving line 204a. , thereby increasing the light transmittance of the light transmittance adjustment layer 20 corresponding to the camera area 100 .
  • the display device inputs a corresponding voltage to the second driving line 204b, and the liquid crystal layer causes the liquid crystal corresponding to the second adjustment area to move at a second angle through the voltage applied to the second driving line 204b. Turn over, thereby reducing the light transmittance of the display area 200 corresponding to the light transmittance adjustment layer 20 .
  • the dotted line in Figure 7 represents the arrangement of the liquid crystal when no voltage is applied.
  • the brightness of the camera area 100 and the display area 200 of the display device can be made smooth and excessive, the brightness difference between the camera area 100 and the display area 200 of the display device can be reduced or eliminated, and the brightness of the display device can be achieved.
  • the brightness uniformity of the light-emitting surface can also solve the problem of the blind hole of the display device corresponding to the camera area 100 being visible.
  • An embodiment of the present invention also provides a brightness adjustment method for a display device as described above. As shown in Figure 8, the brightness adjustment method for a display device includes the following steps:
  • the display status information includes a display status and a non-display status.
  • the display state is a state in which the display panel displays a picture when it receives input picture information
  • the non-display state is a state in which the display panel does not display a picture/no display.
  • S2 Determine the target brightness of the light-emitting surface corresponding to the camera area and the display area according to the display status information.
  • S3 Adjust the light transmittance of the first adjustment area and/or the second adjustment area according to the target brightness.
  • the brightness adjustment method of the display device may further include the following steps:
  • the position information of the camera area and the position information of the display area can be respective area ranges, so that the light transmittance of the light transmittance adjustment layer can be subsequently controlled by area.
  • the brightness adjustment method of the display device in the display state and the non-display state will be described below respectively, and the details are as follows.
  • S1 further includes the following steps:
  • the display device also includes a control terminal.
  • the control terminal transmits the input picture information used to display the picture to the display panel, and the display panel The device can display the screen.
  • the input picture information includes but is not limited to grayscale data of the input picture.
  • the S2 includes the following steps:
  • the grayscale data includes a first part of the grayscale data of the input picture corresponding to the camera area, and a second part of the grayscale data of the input picture corresponding to the display area.
  • the grayscale data of the input image still includes the first part of the grayscale data corresponding to the camera area.
  • S22 Determine the target brightness of the light-emitting surface corresponding to the camera area based on the first partial gray-scale data, and determine the target brightness of the light-emitting surface corresponding to the display area based on the second partial gray-scale data.
  • the S3 includes the following steps:
  • the light adjustment layer receives the voltage input from the first driving line to adjust the light transmittance of the first adjustment area, and/or according to the target brightness of the display area , the light adjustment layer receives the voltage input from the second driving line to adjust the light transmittance of the second adjustment area.
  • the light adjustment layer is a liquid crystal layer and the display panel is an OLED display panel, a Micro-LED display panel or a Mini-LED display panel as an example.
  • the light transmittance of the display panel corresponding to the camera area is lower than the light transmittance corresponding to the display area.
  • the display device when the display device is in the display state, the display device can input a corresponding voltage to the first driving line 204 a according to the target brightness of the camera area 100 , so The liquid crystal layer causes the liquid crystal corresponding to the first adjustment area to flip at a first angle by applying a voltage to the first drive line 204a, thereby increasing the light transmission of the light transmittance adjustment layer 20 corresponding to the camera area 100. Rate.
  • the display device can input a corresponding voltage to the second driving line 204b according to the target brightness of the display area 200, and the liquid crystal layer causes the corresponding voltage to be applied to the second driving line 204b.
  • the liquid crystal in the second adjustment area flips at a second angle, thereby reducing the light transmittance of the display area 200 corresponding to the light transmittance adjustment layer 20 .
  • the brightness of the camera area 100 and the display area 200 of the display device can be made smooth and excessive, the brightness difference between the camera area 100 and the display area 200 of the display device can be reduced or eliminated, and the light-emitting surface of the display device can be improved. Brightness uniformity.
  • the difference in brightness between the camera area and the display area achieves brightness uniformity on the light-emitting surface of the display device.
  • the liquid crystal molecules are arranged at a preset angle, so that the light transmittance adjustment layer has a certain light transmittance.
  • the liquid crystal molecules in the liquid crystal layer corresponding to the camera area are flipped and aligned vertically, thereby increasing the light intensity in the first adjustment area of the light transmittance adjustment layer.
  • the transmittance can further reduce or eliminate the brightness difference between the camera area and the display area of the display device, thereby achieving uniform brightness of the light-emitting surface of the display device.
  • the S1 when the acquired display status information is in a non-display state, the S1 further includes the following steps:
  • the display device when it is in a non-display state, it can be regarded as a black screen. Preset black screen information is stored in the display device.
  • the S2 includes the following steps:
  • S22 Determine the target brightness of the light-emitting surface corresponding to the camera area and the display area based on the grayscale data.
  • the target brightness of the light-emitting surface corresponding to the camera area and the target brightness corresponding to the display area are the same.
  • the light adjustment layer receives the voltage input from the first driving line to adjust the light transmittance of the first adjustment area, and/or according to the target brightness of the display area , the light adjustment layer receives the voltage input from the second driving line to adjust the light transmittance of the second adjustment area.
  • the brightness adjustment principle of the display device in the non-display state is similar to the brightness adjustment principle in the display state, and will not be described again here.
  • the display device and its brightness adjustment method provided by the present invention are provided with a light transmittance adjustment layer on the side of the display panel close to the light emitting surface.
  • the light transmittance adjustment layer includes a first adjustment area corresponding to the camera area and a light transmittance adjustment layer.
  • the light transmittance of the light transmittance adjustment layer can be controlled by zones.
  • the transmittance can adjust the brightness of the light-emitting surface of the display device so that the brightness of different areas of the light-emitting surface remains consistent, which can solve the problem of uneven brightness of the light-emitting surface of the display device caused by differences in light transmittance in different areas of the display panel. , it can also solve the problem that the blind hole of the display device corresponding to the camera area is visible.

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Abstract

一种显示装置(1)及其亮度调节方法，显示装置(1)具有出光面(1A)，其包括摄像头区(100)和显示区(200)，还包括显示面板(10)和光透过率调节层(20)。其中，光透过率调节层(20)包括对应摄像头区(100)的第一调节区(201)和对应显示区(200)的第二调节区(202)。通过调节光透过率调节层(20)的第一调节区(201)和/或第二调节区(202)的光透过率，使得出光面(1A)不同区域的亮度保持均一。

Description

显示装置及其亮度调节方法 技术领域
本发明涉及显示技术领域，具体涉及一种显示装置及其亮度调节方法。
 背景技术
屏下摄像技术通过将摄像头放置在屏幕下方进而提升了屏占比，同时使整个显示装置具有更好的美观性，因此得到了越来越广泛的应用。现有的屏下摄像技术一般通过在显示装置对应摄像头的位置开孔，同时将屏幕对应摄像头的区域做成无像素或者减小像素排布来提升该区域屏幕光线透过率，实现屏下摄像功能。
但是，现有的屏下摄像技术在显示装置对应摄像头区的开孔设计及像素排布设计，会导致显示装置对应摄像头区和摄像头区之外的显示区的透过率或亮度不一致，造成即使在显示黑画面或无显示时摄像头区的屏幕亮度和其它区域也会出现明显差异，导致该位置盲孔很容易被观察到，影响屏幕美观性。
因此，有必要提供一种技术方案以解决上述问题。
 技术问题
本发明提供一种显示装置及其亮度调节方法，能够解决现有的显示装置由于摄像头区和摄像头区之外的显示区的光通量差异所造成的屏幕亮度不均一的技术问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明实施例提供一种显示装置，所述显示装置具有出光面，所述显示装置包括摄像头区和包围所述摄像头区的显示区，所述显示装置还包括：
显示面板；
光透过率调节层，设置于所述显示面板靠近所述出光面的一侧，所述光透过率调节层包括对应所述摄像头区的第一调节区和对应所述显示区的第二调节区；
其中，所述显示装置通过调节所述第一调节区和/或所述第二调节区的光透过率调节所述出光面的亮度。
可选的，在本发明的一些实施例中，所述光透过率调节层包括驱动走线层和光调节层，所述光调节层接收自所述驱动走线层输入的电压调节所述光透过率调节层的光透过率。
可选的，在本发明的一些实施例中，所述驱动走线层包括对应所述第一调节区的第一驱动走线和对应所述第二调节区的第二驱动走线，所述光调节层接收自所述第一驱动走线和/或所述第二驱动走线输入的电压调节所述光透过率调节层相应区域的光透过率。
可选的，在本发明的一些实施例中，所述第一驱动走线包括沿第一方向设置的第一走线和沿第二方向设置的第二走线，所述第一走线和所述第二走线位于所述光调节层的同一侧或者不同侧，所述光调节层接收自所述第一走线和所述第二走线输入的电压调节所述第一调节区的光透过率；
所述第二驱动走线包括沿所述第一方向设置的第三走线和沿所述第二方向设置的第四走线，所述第三走线和所述第四走线位于所述光调节层的同一侧或者不同侧，所述光调节层接收自所述第三走线和所述第四走线输入的电压调节所述第二调节区的光透过率；其中，所述第一方向和所述第二方向相互垂直。
可选的，在本发明的一些实施例中，所述光调节层为液晶层或者电致变色层。
可选的，在本发明的一些实施例中，所述光透过率调节层还包括相对设置的第一基板层和第二基板层，所述光调节层设置于所述第一基板层和所述第二基板层之间，所述驱动走线层设置于所述第一基板层和所述第二基板层中的至少一者面向所述光调节层一侧的表面上。
本发明实施例还提供一种如上所述显示装置的亮度调节方法，亮度调节方法包括以下步骤：
S1，获取所述显示装置的显示状态信息；
其中，所述显示状态信息包括显示状态和非显示状态；
S2，根据所述显示状态信息确定所述出光面对应所述摄像头区和所述显示区的目标亮度；
S3，根据所述目标亮度调节所述第一调节区和/或所述第二调节区的光透过率。
可选的，在本发明的一些实施例中，当获取的所述显示状态信息为显示状态时，所述S1还包括以下步骤：
S11，读取输入所述显示装置的输入画面信息；
所述S2包括以下步骤：
S21，根据所述输入画面信息获取输入画面的灰阶数据；
其中，所述灰阶数据包括所述输入画面对应所述摄像头区的第一部分灰阶数据，以及包括所述输入画面对应所述显示区的第二部分灰阶数据；
S22，根据所述第一部分灰阶数据确定所述出光面对应所述摄像头区的目标亮度，根据所述第二部分灰阶数据确定所述出光面对应所述显示区的目标亮度。
可选的，在本发明的一些实施例中，所述光透过率调节层包括驱动走线层和光调节层，所述驱动走线层包括对应所述第一调节区的第一驱动走线和对应所述第二调节区的第二驱动走线，所述S3包括以下步骤：
根据所述摄像头区的目标亮度，所述光调节层接收自所述第一驱动走线输入的电压调节所述第一调节区的光透过率，和/或根据所述显示区的目标亮度，所述光调节层接收自所述第二驱动走线输入的电压调节所述第二调节区的光透过率。
可选的，在本发明的一些实施例中，当获取的所述显示状态信息为非显示状态时，所述S1还包括以下步骤：
S11，读取预设黑画面信息；
所述S2包括以下步骤：
S21，根据所述预设黑画面信息获取预设黑画面的灰阶数据；
S22，根据所述灰阶数据确定所述出光面对应所述摄像头区和所述显示区的目标亮度。
可选的，在本发明的一些实施例中，所述光透过率调节层包括驱动走线层和光调节层，所述驱动走线层包括对应所述第一调节区的第一驱动走线和对应所述第二调节区的第二驱动走线，所述S3包括以下步骤：
根据所述摄像头区的目标亮度，所述光调节层接收自所述第一驱动走线输入的电压调节所述第一调节区的光透过率，和/或根据所述显示区的目标亮度，所述光调节层接收自所述第二驱动走线输入的电压调节所述第二调节区的光透过率。
本发明实施例还提供一种显示装置，所述显示装置具有出光面，所述显示装置包括摄像头区和包围所述摄像头区的显示区，所述显示装置还包括：
显示面板；
光透过率调节层，设置于所述显示面板靠近所述出光面的一侧，所述光透过率调节层包括对应所述摄像头区的第一调节区和对应所述显示区的第二调节区；
其中，所述第一调节区的光透过率与所述第二调节区的光透过率可单独调节，所述显示装置通过调节所述第一调节区和/或所述第二调节区的光透过率调节所述出光面的亮度。
可选的，在本发明的一些实施例中，所述光透过率调节层包括驱动走线层和光调节层，所述光调节层接收自所述驱动走线层输入的电压调节所述光透过率调节层的光透过率。
可选的，在本发明的一些实施例中，所述驱动走线层包括对应所述第一调节区的第一驱动走线和对应所述第二调节区的第二驱动走线，所述光调节层接收自所述第一驱动走线和/或所述第二驱动走线输入的电压调节所述光透过率调节层相应区域的光透过率。
可选的，在本发明的一些实施例中，所述第一驱动走线包括沿第一方向设置的第一走线和沿第二方向设置的第二走线，所述第一走线和所述第二走线位于所述光调节层的同一侧或者不同侧，所述光调节层接收自所述第一走线和所述第二走线输入的电压调节所述第一调节区的光透过率；
所述第二驱动走线包括沿所述第一方向设置的第三走线和沿所述第二方向设置的第四走线，所述第三走线和所述第四走线位于所述光调节层的同一侧或者不同侧，所述光调节层接收自所述第三走线和所述第四走线输入的电压调节所述第二调节区的光透过率；其中，所述第一方向和所述第二方向相互垂直。
可选的，在本发明的一些实施例中，所述光调节层为液晶层或者电致变色层。
可选的，在本发明的一些实施例中，所述光透过率调节层还包括相对设置的第一基板层和第二基板层，所述光调节层设置于所述第一基板层和所述第二基板层之间，所述驱动走线层设置于所述第一基板层和所述第二基板层中的至少一者面向所述光调节层一侧的表面上。
 有益效果
本发明的有益效果为：本发明提供的显示装置及其亮度调节方法，在显示面板靠近出光面的一侧设置光透过率调节层，将所述光透过率调节层划分为对应摄像头区的第一调节区和对应显示区的第二调节区，所述光透过率调节层能够实现光透过率的分区调控，通过调节所述第一调节区和/或所述第二调节区的光透过率，可以对自所述显示面板射向所述显示装置出光面的光通量进行调节，使得所述出光面不同区域的亮度保持一致，实现对所述显示装置的出光面的亮度调节，从而解决因显示面板不同区域的光通量差异所造成的显示装置的出光面亮度不均一问题。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的显示装置的结构示意图；
图2是本发明实施例一提供的显示装置的剖面示意图；
图3是本发明实施例二提供的显示装置的剖面示意图；
图4是本发明实施例提供的光透过率调节层的剖面示意图；
图5是本发明实施例提供的驱动走线层的局部示意图；
图6是本发明实施例提供的光透过率调节层未施加电压时的剖面示意图；
图7是本发明实施例提供的光透过率调节层施加电压时的剖面示意图；
图8是本发明实施例提供的显示装置的亮度调节方法流程图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。此外，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。在本发明中，在未作相反说明的情况下，使用的方位词如“上”和“下”通常是指装置实际使用或工作状态下的上和下，具体为附图中的图面方向；而“内”和“外”则是针对装置的轮廓而言的。
请参阅图1-图7，本发明实施例提供一种显示装置1，所述显示装置1具有出光面1A，所述显示装置1包括摄像头区100和包围所述摄像头区100的显示区200。所述显示装置1还包括显示面板10和光透过率调节层20，所述光透过率调节层20设置于所述显示面板10靠近所述出光面1A的一侧。所述光透过率调节层20包括对应所述摄像头区100的第一调节区201和对应所述显示区200的第二调节区202。其中，所述第一调节区201的光透过率与所述第二调节区202的光透过率可单独调节，所述显示装置1通过调节所述第一调节区201和/或所述第二调节区202的光透过率用于调节所述出光面1A的亮度。
需要说明的是，本申请实施例对所述摄像头区100和所述显示区200的定义是从区域划分的角度出发，所述摄像头区100可实际根据所述显示面板10的类型做无像素设计或者减小像素密度设计，即，所述摄像头区100和所述显示区200都可以具备显示功能，或者所述摄像头区100可以不具备显示功能。
本发明实施例在所述显示面板10靠近出光面的一侧设置所述光透过率调节层20，将所述光透过率调节层20划分为对应所述摄像头区100的第一调节区201和对应所述显示区200的第二调节区202，所述光透过率调节层20的光透过率可分区控制，通过调节所述光透过率调节层20的第一调节区201和/或第二调节区202的光透过率，可以对自所述显示面板10射向所述显示装置出光面1A的光通量进行调节，使得所述出光面1A不同区域的亮度保持一致，实现对所述显示装置1的出光面1A的亮度调节，从而解决因显示面板不同区域的光通量差异所造成的显示装置的出光面亮度不均一问题。
以下结合具体实施例进行详细描述，具体阐述如下。
请参阅图1，所述显示装置1可以是液晶显示装置、OLED显示装置、Micro-LED显示装置或者Mini-LED显示装置，但不以此为限。所述显示装置1包括摄像头区100和围绕所述摄像头区100设置的显示区200。可以理解的是，所述显示区200用于显示图像；所述摄像头区100用于摄像头拍摄，也可以用于显示图像。
请参阅图2，图2是本发明实施例一提供的显示装置的剖面示意图。所述显示装置1包括：显示面板10、光透过率调节层20、背光模组30以及摄像头40。所述显示面板10为液晶显示面板，所述光透过率调节层20设置于所述显示面板10靠近出光面1A的一侧，所述背光模组30设置于所述显示面板10背向所述出光面1A的一侧。其中，所述背光模组30对应所述摄像头区100的位置设有贯穿所述背光模组30的开孔，所述摄像头40位于所述开孔处。
在本实施例中，所述显示面板10对应所述摄像头区100的位置可以设置盲孔，所述显示面板10对应所述摄像头区100也可以设置像素或者不设置像素。当所述所述显示面板10对应所述摄像头区100设置像素时，为保证摄像头的拍摄性能，通常所述显示面板10对应所述摄像头区100的像素密度小于对应所述显示区200的像素密度。
其中，由于所述背光模组30在所述摄像头区100为开孔设计，导致该区域的所述显示面板10无背光/较少背光照射，因此，造成所述显示面板10对应所述摄像头区100的光通量与所述显示面板10对应所述显示区200的光通量不同。此外，由于所述显示面板10上的盲孔设计，即便在所述显示装置不显示的状态下，也会导致摄像头区100的盲孔很容易被观察到，影响屏幕美观性。
本实施例的显示装置，在所述显示面板10靠近所述出光面1A的一侧设置光透过率调节层20，通过调节所述光透过率调节层20的第一调节区201和/或第二调节区202的光透过率，可以对自所述显示面板10射向所述显示装置出光面1A的光通量进行调节，使得所述出光面1A不同区域的亮度保持一致，实现对所述显示装置1的出光面1A的亮度调节，提高显示效果，同时还可以避免盲孔很容易被观察到。
请参阅图3，图3是本发明实施例二提供的显示装置的剖面示意图。所述显示装置1包括：显示面板10、光透过率调节层20以及摄像头40。所述显示面板10可以为OLED显示面板、Micro-LED显示面板或者Mini-LED显示面板，但不以此为限。所述光透过率调节层20设置于所述显示面板10靠近出光面1A的一侧，所述摄像头40设置于所述显示面板10背离所述出光面1A的一侧，且所述摄像头40对应所述摄像头区100设置。
在本实施例中，所述显示面板10对应所述摄像头区100的位置可以设置盲孔，所述显示面板10对应所述摄像头区100可以设置像素，也可以不设置像素。当所述显示面板10对应所述摄像头区100设置像素时，所述显示面板10对应所述摄像头区100的像素密度小于对应所述显示区200的像素密度。
其中，由于所述显示面板10对应所述摄像头区100无像素设计或者像素密度小于显示区200的像素密度，因此造成所述显示面板10对应所述摄像头区100的光通量与所述显示面板10对应所述显示区200的光通量不同。此外，在所述显示装置不显示时，也会导致摄像头区100的盲孔很容易被观察到。
本实施例的显示装置，在所述显示面板10靠近所述出光面1A的一侧设置光透过率调节层20，通过调节所述光透过率调节层20的第一调节区201和/或第二调节区202的光透过率，可以对自所述显示面板10射向所述显示装置出光面1A的光通量进行调节，使得所述出光面1A不同区域的亮度保持一致，实现对所述显示装置1的出光面1A的亮度调节，提高显示效果，同时还可以避免盲孔很容易被观察到。
请参阅图4，图4是本发明实施例提供的光透过率调节层的剖面示意图。所述光透过率调节层20包括：相对设置的第一基板层203和第二基板层206、位于所述第一基板层203和第二基板层206之间的驱动走线层204和光调节层205。所述驱动走线层204可以设置于所述第一基板层203和所述第二基板层206中的至少一者面向所述光调节层205一侧的表面上。在图4中示意的是所述驱动走线层204设置于所述第一基板层203面向所述光调节层205一侧的表面上。其中，所述光调节层205接收自所述驱动走线层204输入的电压调节所述光透过率调节层20的光透过率。
作为一种实施例，所述光透过率调节层20可以是玻璃盖板，所述第一基板层203和所述第二基板层206均为玻璃基板层。也就是说，本实施例可以在玻璃盖板中夹设所述驱动走线层204和所述光调节层205。
作为一种实施例，所述光透过率调节层20可以是偏光片，所述第一基板层203和所述第二基板层206均为偏光层。也就是说，本实施例可以在偏光片中夹设所述驱动走线层204和所述光调节层205。
作为一种实施例，所述光调节层205为液晶层，所述液晶层通过施加在所述驱动走线层204上的电压进行翻转，从而调节光的透过率。
作为一种实施例，所述光调节层205为电致变色层，所述电致变色层通过施加在所述驱动走线层204上的电压对光的透过率进行调节。
请参阅图5，图5是本发明实施例提供的驱动走线层的局部示意图。所述驱动走线层204包括对应所述第一调节区201的第一驱动走线204a和对应所述第二调节区202的第二驱动走线204b，所述光调节层205接收自所述第一驱动走线204a和/或所述第二驱动走线204b输入的电压调节所述光透过率调节层20相应区域的光透过率。
具体地，所述第一驱动走线204a包括沿第一方向设置的第一走线2041和沿第二方向设置的第二走线2042，所述第一走线2041和所述第二走线2042位于所述光调节层205的同一侧或者不同侧，所述光调节层205接收自所述第一走线2041和所述第二走线2042输入的电压调节所述第一调节区201的光透过率。所述第二驱动走线204b包括沿所述第一方向设置的第三走线2043和沿所述第二方向设置的第四走线2044，所述第三走线2043和所述第四走线2044位于所述光调节层205的同一侧或者不同侧，所述光调节层205接收自所述第三走线2043和所述第四走线2044输入的电压调节所述第二调节区202的光透过率。其中，所述第一方向和所述第二方向相互垂直。
请参阅图6和图7，图6是本发明实施例提供的光透过率调节层未施加电压时的剖面示意图，图7是本发明实施例提供的光透过率调节层施加电压时的剖面示意图。此处以所述显示装置为液晶显示装置为例进行说明。其中，所述显示面板10对应所述摄像头区100的光透过率低于对应所述显示区200的光透过率。当所述光透过率调节层20未施加电压时，所述光调节层205中的液晶分子以预设倾斜角设置，此时所述光透过率调节层20具有一定的透过性。
当所述显示装置向所述第一驱动走线204a输入相应的电压，所述液晶层通过施加到所述第一驱动走线204a的电压使对应第一调节区的液晶以第一角度进行翻转，从而提高所述光透过率调节层20对应摄像头区100的光透过率。同时，所述显示装置向所述第二驱动走线204b输入相应的电压，所述液晶层通过施加到所述第二驱动走线204b的电压使对应第二调节区的液晶以第二角度进行翻转，从而降低所述光透过率调节层20对应显示区200的光透过率。其中，图7中虚线表示液晶在未施加电压时的排列情况。采用这样的设计，可以使所述显示装置的摄像头区100和显示区200的亮度平缓过度，减小或消除所述显示装置的摄像头区100和显示区200的亮度差异，实现所述显示装置的出光面的亮度均一性，还可以解决所述显示装置对应所述摄像头区100的盲孔被看见的问题。
本发明实施例还提供一种如上所述的显示装置的亮度调节方法，如图8所示，所述显示装置的亮度调节方法包括以下步骤：
S1，获取所述显示装置的显示状态信息。
其中，所述显示状态信息包括显示状态和非显示状态。可以理解的是，所述显示状态为所述显示面板接收到输入画面信息时进行画面显示的状态，所述非显示状态为所述显示面板不进行画面显示/无显示的状态。
S2，根据所述显示状态信息确定所述出光面对应所述摄像头区和所述显示区的目标亮度。
S3，根据所述目标亮度调节所述第一调节区和/或所述第二调节区的光透过率。
在一种实施例中，所述S1之前，所述显示装置的亮度调节方法还可以包括以下步骤：
S0，获取所述显示装置的摄像头区和显示区的位置信息。
可以理解的是，所述摄像头区的位置信息和所述显示区的位置信息可以是各自的区域范围，以便后续分区域调控光透过率调节层的光透过率。
以下分别对所述显示装置处于显示状态和非显示状态下的亮度调节方法进行说明，具体阐述如下。
当获取的所述显示状态信息为显示状态时，所述S1还包括以下步骤：
S11，读取输入所述显示装置的输入画面信息。
可以理解的是，所述显示装置中还包括控制端，在所述显示装置处于显示状态时，所述控制端通过将用于显示画面的输入画面信息传输至所述显示面板中，所述显示装置得以显示画面。
其中，所述输入画面信息包括但不限于输入画面的灰阶数据。
接着，所述S2包括以下步骤：
S21，根据所述输入画面信息获取输入画面的灰阶数据。
其中，所述灰阶数据包括所述输入画面对应所述摄像头区的第一部分灰阶数据，以及包括所述输入画面对应所述显示区的第二部分灰阶数据。
可以理解的是，即便所述显示面板对应所述摄像头区无显示，所述输入画面的灰阶数据中也包括对应所述摄像头区的第一部分灰阶数据。
S22，根据所述第一部分灰阶数据确定所述出光面对应所述摄像头区的目标亮度，根据所述第二部分灰阶数据确定所述出光面对应所述显示区的目标亮度。
接着，所述S3包括以下步骤：
根据所述摄像头区的目标亮度，所述光调节层接收自所述第一驱动走线输入的电压调节所述第一调节区的光透过率，和/或根据所述显示区的目标亮度，所述光调节层接收自所述第二驱动走线输入的电压调节所述第二调节区的光透过率。
此处以所述光调节层为液晶层，所述显示面板为OLED显示面板、Micro-LED显示面板或者Mini-LED显示面板为例进行说明。具体地，所述显示面板对应所述摄像头区的光透过率低于对应所述显示区的光透过率。可结合图6和图7所示，当所述显示装置处于显示状态时，所述显示装置可以根据所述摄像头区100的目标亮度，向所述第一驱动走线204a输入相应的电压，所述液晶层通过施加到所述第一驱动走线204a的电压使对应第一调节区的液晶以第一角度进行翻转，从而提高所述光透过率调节层20对应摄像头区100的光透过率。同时，所述显示装置可以根据所述显示区200的目标亮度，向所述第二驱动走线204b输入相应的电压，所述液晶层通过施加到所述第二驱动走线204b的电压使对应第二调节区的液晶以第二角度进行翻转，从而降低所述光透过率调节层20对应显示区200的光透过率。如此，可以使所述显示装置的摄像头区100和显示区200的亮度平缓过度，减小或消除所述显示装置的摄像头区100和显示区200的亮度差异，实现所述显示装置的出光面的亮度均一性。
在另一种实施例中，所述显示装置可以对所述第一驱动走线和所述第二驱动走线中的一者输入相应的电压，对所述第一驱动走线和所述第二驱动走线中的另一者不输入电压。例如，所述液晶层在不施加电压的情况下液晶分子竖直排列，不会影响自所述显示面板射向所述出光面的光线的透过率；当对所述第二驱动走线输入相应的电压时，所述液晶层对应所述显示区的部分发生翻转，从而降低所述光透过率调节层的第二调节区的光透过率，进而减小或消除所述显示装置的摄像头区和显示区的亮度差异，实现所述显示装置的出光面的亮度均一性。又例如，所述液晶层在不施加电压的情况下液晶分子以预设角度排列，使得所述光透过率调节层具有一定的光透过率。当对所述第一驱动走线输入相应的电压时，所述液晶层对应所述摄像头区的液晶分子发生翻转竖直排列，从而提高所述光透过率调节层的第一调节区的光透过率，进而减小或消除所述显示装置的摄像头区和显示区的亮度差异，实现所述显示装置的出光面的亮度均一性。
其中，当获取的所述显示状态信息为非显示状态时，所述S1还包括以下步骤：
S11，读取预设黑画面信息。
可以理解的是，当所述显示装置为非显示状态时，可以看作是黑画面。所述显示装置中存储有预设黑画面信息。
接着，所述S2包括以下步骤：
S21，根据所述预设黑画面信息获取预设黑画面的灰阶数据。
可以理解的是，由于是黑画面，所以所述灰阶数据对应不同区域的参数相同。
S22，根据所述灰阶数据确定所述出光面对应所述摄像头区和所述显示区的目标亮度。
其中，所述出光面对应所述摄像头区的目标亮度和对应所述显示区的目标亮度相同。
接着，所述S3包括以下步骤：
根据所述摄像头区的目标亮度，所述光调节层接收自所述第一驱动走线输入的电压调节所述第一调节区的光透过率，和/或根据所述显示区的目标亮度，所述光调节层接收自所述第二驱动走线输入的电压调节所述第二调节区的光透过率。
其中，所述显示装置在非显示状态时的亮度调节原理和上述显示状态下的亮度调节原理相似，此处不再赘述。
综上，本发明提供的显示装置及其亮度调节方法，在显示面板靠近出光面的一侧设置光透过率调节层，所述光透过率调节层包括对应摄像头区的第一调节区和对应显示区的第二调节区，所述光透过率调节层的光透过率可分区控制，通过调节所述光透过率调节层的第一调节区和/或第二调节区的光透过率，实现对显示装置的出光面的亮度调节，使得出光面不同区域的亮度保持一致，可以解决因显示面板不同区域的光透过率差异所造成的显示装置的出光面亮度不均一问题，还可以解决所述显示装置对应所述摄像头区的盲孔被看见的问题。
以上对本发明实施例进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (17)

  1. 一种显示装置，其中，所述显示装置具有出光面，所述显示装置包括摄像头区和包围所述摄像头区的显示区，所述显示装置还包括：
    显示面板；
    光透过率调节层，设置于所述显示面板靠近所述出光面的一侧，所述光透过率调节层包括对应所述摄像头区的第一调节区和对应所述显示区的第二调节区；
    其中，所述显示装置通过调节所述第一调节区和/或所述第二调节区的光透过率调节所述出光面的亮度。
  2. 根据权利要求1所述的显示装置，其中，所述光透过率调节层包括驱动走线层和光调节层，所述光调节层接收自所述驱动走线层输入的电压调节所述光透过率调节层的光透过率。
  3. 根据权利要求2所述的显示装置，其中，所述驱动走线层包括对应所述第一调节区的第一驱动走线和对应所述第二调节区的第二驱动走线，所述光调节层接收自所述第一驱动走线和/或所述第二驱动走线输入的电压调节所述光透过率调节层相应区域的光透过率。
  4. 根据权利要求3所述的显示装置，其中，所述第一驱动走线包括沿第一方向设置的第一走线和沿第二方向设置的第二走线，所述第一走线和所述第二走线位于所述光调节层的同一侧或者不同侧，所述光调节层接收自所述第一走线和所述第二走线输入的电压调节所述第一调节区的光透过率；
    所述第二驱动走线包括沿所述第一方向设置的第三走线和沿所述第二方向设置的第四走线，所述第三走线和所述第四走线位于所述光调节层的同一侧或者不同侧，所述光调节层接收自所述第三走线和所述第四走线输入的电压调节所述第二调节区的光透过率；其中，所述第一方向和所述第二方向相互垂直。
  5. 根据权利要求2所述的显示装置，其中，所述光调节层为液晶层或者电致变色层。
  6. 根据权利要求2所述的显示装置，其中，所述光透过率调节层还包括相对设置的第一基板层和第二基板层，所述光调节层设置于所述第一基板层和所述第二基板层之间，所述驱动走线层设置于所述第一基板层和所述第二基板层中的至少一者面向所述光调节层一侧的表面上。
  7. 一种如权利要求1所述的显示装置的亮度调节方法，其中，亮度调节方法包括以下步骤：
    S1，获取所述显示装置的显示状态信息；
    其中，所述显示状态信息包括显示状态和非显示状态；
    S2，根据所述显示状态信息确定所述出光面对应所述摄像头区和所述显示区的目标亮度；
    S3，根据所述目标亮度调节所述第一调节区和/或所述第二调节区的光透过率。
  8. 根据权利要求7所述的显示装置的亮度调节方法，其中，当获取的所述显示状态信息为显示状态时，所述S1还包括以下步骤：
    S11，读取输入所述显示装置的输入画面信息；
    所述S2包括以下步骤：
    S21，根据所述输入画面信息获取输入画面的灰阶数据；
    其中，所述灰阶数据包括所述输入画面对应所述摄像头区的第一部分灰阶数据，以及包括所述输入画面对应所述显示区的第二部分灰阶数据；
    S22，根据所述第一部分灰阶数据确定所述出光面对应所述摄像头区的目标亮度，根据所述第二部分灰阶数据确定所述出光面对应所述显示区的目标亮度。
  9. 根据权利要求8所述的显示装置的亮度调节方法，其中，所述光透过率调节层包括驱动走线层和光调节层，所述驱动走线层包括对应所述第一调节区的第一驱动走线和对应所述第二调节区的第二驱动走线，所述S3包括以下步骤：
    根据所述摄像头区的目标亮度，所述光调节层接收自所述第一驱动走线输入的电压调节所述第一调节区的光透过率，和/或根据所述显示区的目标亮度，所述光调节层接收自所述第二驱动走线输入的电压调节所述第二调节区的光透过率。
  10. 根据权利要求7所述的显示装置的亮度调节方法，其中，当获取的所述显示状态信息为非显示状态时，所述S1还包括以下步骤：
    S11，读取预设黑画面信息；
    所述S2包括以下步骤：
    S21，根据所述预设黑画面信息获取预设黑画面的灰阶数据；
    S22，根据所述灰阶数据确定所述出光面对应所述摄像头区和所述显示区的目标亮度。
  11. 根据权利要求10所述的显示装置的亮度调节方法，其中，所述光透过率调节层包括驱动走线层和光调节层，所述驱动走线层包括对应所述第一调节区的第一驱动走线和对应所述第二调节区的第二驱动走线，所述S3包括以下步骤：
    根据所述摄像头区的目标亮度，所述光调节层接收自所述第一驱动走线输入的电压调节所述第一调节区的光透过率，和/或根据所述显示区的目标亮度，所述光调节层接收自所述第二驱动走线输入的电压调节所述第二调节区的光透过率。
  12. 一种显示装置，其中，所述显示装置具有出光面，所述显示装置包括摄像头区和包围所述摄像头区的显示区，所述显示装置还包括：
    显示面板；
    光透过率调节层，设置于所述显示面板靠近所述出光面的一侧，所述光透过率调节层包括对应所述摄像头区的第一调节区和对应所述显示区的第二调节区；
    其中，所述第一调节区的光透过率与所述第二调节区的光透过率可单独调节，所述显示装置通过调节所述第一调节区和/或所述第二调节区的光透过率调节所述出光面的亮度。
  13. 根据权利要求12所述的显示装置，其中，所述光透过率调节层包括驱动走线层和光调节层，所述光调节层接收自所述驱动走线层输入的电压调节所述光透过率调节层的光透过率。
  14. 根据权利要求13所述的显示装置，其中，所述驱动走线层包括对应所述第一调节区的第一驱动走线和对应所述第二调节区的第二驱动走线，所述光调节层接收自所述第一驱动走线和/或所述第二驱动走线输入的电压调节所述光透过率调节层相应区域的光透过率。
  15. 根据权利要求14所述的显示装置，其中，所述第一驱动走线包括沿第一方向设置的第一走线和沿第二方向设置的第二走线，所述第一走线和所述第二走线位于所述光调节层的同一侧或者不同侧，所述光调节层接收自所述第一走线和所述第二走线输入的电压调节所述第一调节区的光透过率；
    所述第二驱动走线包括沿所述第一方向设置的第三走线和沿所述第二方向设置的第四走线，所述第三走线和所述第四走线位于所述光调节层的同一侧或者不同侧，所述光调节层接收自所述第三走线和所述第四走线输入的电压调节所述第二调节区的光透过率；其中，所述第一方向和所述第二方向相互垂直。
  16. 根据权利要求13所述的显示装置，其中，所述光调节层为液晶层或者电致变色层。
  17. 根据权利要求13所述的显示装置，其中，所述光透过率调节层还包括相对设置的第一基板层和第二基板层，所述光调节层设置于所述第一基板层和所述第二基板层之间，所述驱动走线层设置于所述第一基板层和所述第二基板层中的至少一者面向所述光调节层一侧的表面上。
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