CN109192123B - Display panel control method and display device - Google Patents
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- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 11
- 230000002411 adverse Effects 0.000 abstract description 7
- 238000004020 luminiscence type Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 25
- 230000002829 reductive effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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Abstract
The embodiment of the invention provides a display panel control method and a display device, relates to the technical field of display, and can improve adverse effects of pixel luminescence around a light-transmitting area on front-end shooting. The display panel control method comprises the following steps: responding to a front shooting starting instruction, controlling the display panel to enter a front shooting mode, wherein in the front shooting mode, when an input picture is a pure color picture, the brightness of the edge display area is smaller than that of the normal display area; and responding to a front shooting end instruction, and controlling the display panel to enter a normal display mode, wherein in the normal display mode, when an input picture is a pure color picture, the brightness of the edge display area is equal to that of the normal display area.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel control method and a display device.
Background
In the current display devices such as mobile phones, in order to make better and more sufficient use of the space of the display panel, the screen occupation ratio is higher and higher, that is, the proportion of the display area to the display panel area is larger and larger. When the area of the display area is large, the space of the front camera can be occupied, so that the mode that the front camera is arranged inside the display area is achieved, namely, a light transmission area corresponding to the front camera is arranged on the display panel, the display area surrounds the light transmission area, and the front camera achieves a front photographing function through the light transmission area.
However, since the light-transmitting area is disposed inside the display area and the pixels for display are disposed around the light-transmitting area, when the front camera takes a picture, the pixels around the light-transmitting area emit light, which may adversely affect the front camera's shooting effect.
Disclosure of Invention
The embodiment of the invention provides a display panel control method and a display device, which can improve the adverse effect of the light emission of pixels around a light-transmitting area on front-end shooting.
In one aspect, an embodiment of the present invention provides a display panel control method, where the display panel includes a light-transmitting area, a display area surrounding the light-transmitting area, and a peripheral area surrounding the display area, the display area includes an edge display area surrounding the light-transmitting area and a normal display area surrounding the edge display area, the display panel further includes a plurality of pixels, the pixels are disposed in the edge display area and the normal display area, and the light-transmitting area is not provided with the pixels, the display panel control method includes:
responding to a front shooting starting instruction, controlling the display panel to enter a front shooting mode, wherein in the front shooting mode, when an input picture is a pure color picture, the brightness of the edge display area is smaller than that of the normal display area;
and responding to a front shooting end instruction, and controlling the display panel to enter a normal display mode, wherein in the normal display mode, when an input picture is a pure color picture, the brightness of the edge display area is equal to that of the normal display area.
Optionally, in the pre-capture mode, when the input picture is a pure color picture, all the pixels in the edge display area have the same brightness.
Optionally, in the pre-capture mode, the brightness of the edge display region is zero.
Optionally, in the pre-capture mode, when the input picture is a pure color picture, the brightness of the pixel gradually increases in a direction from the light-transmitting area to the normal display area in the edge display area.
Optionally, in the pre-capture mode, when the input picture is a pure color picture, the brightness of the pixel gradually increases from zero in a direction from the light-transmitting area to the normal display area in the edge display area.
Optionally, in the edge display region, the number of the pixels in a direction from the light-transmitting region to the normal display region is 32, 64, 128, or 256.
Optionally, the pixel comprises a plurality of sub-pixels,
in the pre-shooting mode, when an input picture is a pure-color picture, the data voltage value output to any sub-pixel in the edge display area is smaller than the data voltage value output to any sub-pixel in the normal display area.
On the other hand, an embodiment of the present invention further provides a display device, including:
a display panel including a light-transmitting region, a display region surrounding the light-transmitting region, and a peripheral region surrounding the display region, the display region including an edge display region surrounding the light-transmitting region and a normal display region surrounding the edge display region, the display panel further including a plurality of pixels, the pixels being disposed in the edge display region and the normal display region, the light-transmitting region not being provided with the pixels;
the front camera is covered by the light-transmitting area in the direction perpendicular to the plane of the display panel;
the driving chip is used for responding to a front shooting starting instruction and controlling the display panel to enter a front shooting mode, and in the front shooting mode, when an input picture is a pure-color picture, the brightness of the edge display area is smaller than that of the normal display area;
the driving chip is further used for responding to a front shooting ending instruction and controlling the display panel to enter a normal display mode, and in the normal display mode, when an input picture is a pure color picture, the brightness of the edge display area is equal to that of the normal display area.
Optionally, in the pre-capture mode, when the input picture is a pure color picture, all the pixels in the edge display area have the same brightness.
Optionally, in the pre-capture mode, the brightness of the edge display region is zero.
Optionally, in the pre-capture mode, when the input picture is a pure color picture, the brightness of the pixel gradually increases in a direction from the light-transmitting area to the normal display area in the edge display area.
Optionally, in the pre-capture mode, when the input picture is a pure color picture, the brightness of the pixel gradually increases from zero in a direction from the light-transmitting area to the normal display area in the edge display area.
Optionally, in the edge display region, the number of the pixels in a direction from the light-transmitting region to the normal display region is 32, 64, 128, or 256.
Optionally, the pixel comprises a plurality of sub-pixels,
in the pre-shooting mode, when an input picture is a pure-color picture, the data voltage value output to any sub-pixel in the edge display area is smaller than the data voltage value output to any sub-pixel in the normal display area.
According to the display panel control method and the display device in the embodiment of the invention, in the front shooting mode, the brightness of the edge display area surrounding the light transmission area is reduced, namely when the input picture is a pure color picture, the brightness of the edge display area is smaller than that of the normal display area, so that when the front camera shoots through the light transmission area, the interference of the edge display area on shooting is reduced, and the adverse effect of the peripheral pixel luminescence of the light transmission area on the front shooting is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of area A of FIG. 1;
FIG. 3 is another enlarged partial view of area A of FIG. 1;
FIG. 4 is a flowchart illustrating a display panel control method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display device according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic structural diagram of a display panel in an embodiment of the present invention, fig. 2 is a schematic partial enlarged view of an area a in fig. 1, fig. 3 is another schematic partial enlarged view of the area a in fig. 1, fig. 4 is a schematic flow chart of a control method of a display panel in an embodiment of the present invention, an embodiment of the present invention provides a control method of a display panel, the display panel includes a light-transmitting area 1, a display area 2 surrounding the light-transmitting area 1, and a peripheral area 3 surrounding the display area, the display area 2 includes an edge display area 21 surrounding the light-transmitting area 1 and a normal display area 22 surrounding the edge display area 21, the display panel further includes a plurality of pixels 4, the pixels 4 are disposed in the edge display area 21 and the normal display area 22, the light-transmitting area 1 is not provided with the pixels 4, and in addition, the shape of the edge display region 21 and the arrangement of the pixels 4 are not limited in the embodiment of the present invention, for example, as shown in fig. 2, the outer edge of the edge display region 21 is circular, or, as shown in fig. 3, the outer edge of the edge display region 21 is rectangular, and the pixels 4 are uniformly distributed in rows and columns in the edge display region 21, that is, a plurality of rows of pixels 4 are disposed between the left edge of the edge display region 21 and the light transmission region 1, a plurality of columns of pixels 4 are disposed between the right edge of the edge display region 21 and the light transmission region 1, a plurality of rows of pixels 4 are disposed between the upper edge of the edge display region 21 and the light transmission region 1, and a plurality of rows of pixels 4 are disposed between the lower edge of the edge display region 21 and the light transmission region 1. It should be noted that the light-transmitting area 1 may be an area where a physical through hole is located on the display panel to realize light transmission, or the light-transmitting area 1 may also be an area where a transparent film structure is located on the display panel, that is, the light-transmitting area 1 does not need to dig a physical through hole to realize light transmission, when the display panel is applied to a display device, for example, applied to a mobile phone, the back of the display panel is provided with a front camera at a position corresponding to the light-transmitting area 1, and the front camera realizes a front shooting function through the light-transmitting area 1, including shooting and shooting video.
Referring to fig. 4, the display panel control method includes:
in step 101, the instruction may be from a user control, for example, when the user controls to enter the pre-capture function interface by touching or voice, etc., a pre-capture start instruction is generated, or when the user controls to end the pre-capture function by touching or voice, etc., a pre-capture end instruction is generated. The command may be automatically generated by the system, for example, when the video call is connected, the system automatically generates a pre-shooting start command, and when the video call is ended, the system automatically generates a pre-shooting end command.
Specifically, the display panel includes two display modes, one is a front-view mode, the other is a normal display mode, when the front-view camera is not needed, the display panel operates in the normal display mode, at this time, the edge display area 21 and the normal display area 22 have the same brightness reference, the display screen is complete and has the same brightness, at this time, when the input screen is a pure color screen, the brightness of the edge display area 21 is equal to the brightness of the normal display area 22, and when the front-view camera is needed, the display panel operates in the front-view mode, compared with the normal display mode, in the front-view mode, the brightness reference of the normal display area 22 is unchanged, the brightness of the edge display area 21 in the display panel is reduced, or the brightness of at least a part of the pixels 4 in the edge display area 21 is zero, at this time, when the input screen is a pure color screen, the brightness of the edge display area 21 is smaller than that of the normal display area 22, so that when the front camera takes pictures through the light-transmitting area 1, the interference of the edge display area 21 on the shooting is reduced, namely, the adverse effect of the pixel light emission around the light-transmitting area on the front shooting is improved. It should be noted that, in the pre-capture mode, only when the input picture is a pure color picture, the brightness of the edge display area 21 is necessarily smaller than the brightness of the normal display area 22, but it is not necessarily caused that the brightness of the edge display area 21 is necessarily smaller than the brightness of the normal display area 22 in any actual display picture, for example, for a special input picture, the brightness of the edge display area 21 is much higher than the brightness of the normal display area 22, and in the pre-capture mode, the brightness of the edge display area 21 may still be higher than the brightness of the normal display area 22, but compared with the normal display mode, the brightness of the edge display area 21 is decreased under the same input picture. Similarly, in the normal display mode, only when the input picture is a pure color picture, the brightness of the edge display area 21 is necessarily equal to the brightness of the normal display area 22, i.e. the edge display area 21 and the normal display area 22 reflect the actual brightness of the input picture in each area.
In the display panel control method in the embodiment of the invention, in the pre-shooting mode, the brightness of the edge display area surrounding the light transmission area is reduced, namely when the input picture is a pure-color picture, the brightness of the edge display area is smaller than that of the normal display area, so that when the pre-camera shoots through the light transmission area, the interference of the edge display area on shooting is reduced, and the adverse effect of the peripheral pixel luminescence of the light transmission area on the pre-shooting is improved.
Alternatively, in a first implementable embodiment, in the pre-capture mode, all the pixels 4 in the edge display region 21 have the same brightness when the input picture is a pure color picture.
Specifically, when the input picture is a pure color picture, all the pixels 4 in the edge display area 21 have the same luminance, that is, all the pixels 4 in the edge display area 21 are controlled to decrease the same luminance reference, and the design of the driving chip is simple, for example, only the input gray-scale values of all the pixels 4 in the edge display area 21 need to be subtracted by a fixed value.
Alternatively, in the second realizable embodiment, in the pre-shooting mode, the brightness of the edge display area 21 is zero, that is, in the pre-shooting mode, all the pixels 4 in the edge display area 21 are controlled not to emit light, the design of the driving chip is simpler, and the interference of the light emission of the pixels 4 around the light transmission area 1 to the pre-shooting can be reduced to the maximum extent.
Alternatively, in the third realizable embodiment, in the pre-capture mode, when the input picture is a pure color picture, in the edge display region 21, the luminance of the pixels 4 is gradually increased in the direction from the light-transmitting region 1 to the normal display region 22, at this time, in the edge display region 21, on one hand, the luminance of the pixels 4 closer to the light-transmitting region 1 is lower to reduce the interference of the light emission of the pixels 4 to the pre-capture, and on the other hand, the luminance of the pixels 4 is higher and closer to the luminance of the pixels 4 in the normal display region 22 is closer to the normal display region 22, so that the pixels 4 in the edge display region 21 exhibit a gradual luminance change effect to improve the overall display effect of the display panel.
Alternatively, in the third realizable embodiment, in the pre-shooting mode, when the input picture is a pure-color picture, in the edge display area 21, in the direction from the light-transmitting area 1 to the normal display area 22, the luminance of the pixels 4 is gradually increased from zero, and while the pixels 4 in the edge display area 21 are made to present a gradual luminance change effect, the luminance of the pixels 4 closest to the light-transmitting area 1 is zero, so that the interference of the light emission of the pixels 4 around the light-transmitting area 1 to the pre-shooting can be reduced to the greatest extent.
Alternatively, in the third realizable embodiment, the number of pixels 4 in the direction from the light-transmitting area 1 to the normal display area 22 in the edge display area 21 is 32, 64, 128, or 256.
Specifically, the number of the pixels 4 in the edge display region 21 in the direction from the light-transmitting region 1 to the normal display region 22 is 32, 64, 128, or 256 for a smoother gradation transition effect, and thus the pixels 4 can be changed in luminance at the same interval, for example, when the number of the pixels 4 is 128, that is, from the light-transmitting region 1 to the left edge of the edge display region 21, 128 columns of the pixels 4 are provided, from the light-transmitting region 1 to the right edge of the edge display region 21, 128 columns of the pixels 4 are provided, from the light-transmitting region 1 to the upper edge of the edge display region 21, 128 rows of the pixels 4 are provided, from the light-transmitting region 1 to the lower edge of the edge display region 21, 128 rows of the pixels 4 are provided, and the direction from the light-transmitting region 1 to the normal display region 22 can be controlled, the brightness is reduced every second pixel 4.
Alternatively, the pixel 4 includes a plurality of sub-pixels (not shown in the figure), in the pre-capture mode, when the input picture is a pure color picture, the data voltage value output to any sub-pixel in the edge display area 21 is smaller than the data voltage value output to any sub-pixel in the normal display area 22, and the way of controlling the luminance of the pixel 4 therein by controlling the data voltage value output to any sub-pixel in the edge display area 21 is simpler.
As shown in fig. 1, fig. 2, fig. 3, and fig. 5, fig. 5 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the embodiment of the present invention further provides a display device, including: the display panel 10, the display panel 10 includes the light transmission area 1, display area 2 around light transmission area 1 and peripheral area 3 around display area 2, the display area 2 includes the marginal display area 21 around light transmission area 1 and surrounds the normal display area 22 of the marginal display area 21, the display panel also includes a plurality of picture elements 4, the picture element 4 is set up in marginal display area 21 and normal display area 22, the light transmission area 1 does not set up the picture element 4; the front camera 20, in the direction perpendicular to the plane of the display panel, the light-transmitting area 1 covers the front camera 20; the driving chip 30 is used for responding to a pre-shooting starting instruction, and controlling the display panel to enter a pre-shooting mode, wherein in the pre-shooting mode, when the input picture is a pure-color picture, the brightness of the edge display area 21 is smaller than that of the normal display area 22; the driving chip 30 is further configured to control the display panel to enter a normal display mode in response to the pre-shooting end instruction, wherein in the normal display mode, when the input picture is a pure color picture, the brightness of the edge display area 21 is equal to the brightness of the normal display area 22.
Specifically, the specific structure, principle and control method of the display panel 10 are the same as those of the above embodiments, and are not described herein again. The display device can be any electronic equipment with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic paper book or a television.
In the display device in the embodiment of the invention, in the pre-shooting mode, the brightness of the edge display area surrounding the light transmission area is reduced, namely when the input picture is a pure-color picture, the brightness of the edge display area is smaller than that of the normal display area, so that when the pre-camera shoots through the light transmission area, the interference of the edge display area on shooting is reduced, and the adverse effect of the peripheral pixel luminescence of the light transmission area on the pre-shooting is improved.
Alternatively, in the front shooting mode, when the input picture is a pure color picture, all the pixels 4 in the edge display area 21 have the same luminance.
Alternatively, in the pre-shooting mode, the luminance of the edge display area 21 is zero.
Alternatively, in the front shooting mode, when the input picture is a pure color picture, the luminance of the pixels 4 gradually increases in the direction from the light transmission region 1 to the normal display region 22 in the edge display region 21.
Alternatively, in the front shooting mode, when the input picture is a pure color picture, the luminance of the pixels 4 gradually increases from zero in the direction from the light transmission region 1 to the normal display region 22 in the edge display region 21.
Alternatively, in the edge display region 21, the number of pixels 4 is 32, 64, 128, or 256 in the direction from the light-transmitting region 1 to the normal display region 22.
Alternatively, the pixel 4 includes a plurality of sub-pixels, and in the pre-capture mode, when the input picture is a pure color picture, the data voltage value output to any sub-pixel in the edge display area 21 is smaller than the data voltage value output to any sub-pixel in the normal display area 22.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A display panel control method, wherein the display panel includes a light-transmitting area, a display area surrounding the light-transmitting area, and a peripheral area surrounding the display area, the display area includes an edge display area surrounding the light-transmitting area and a normal display area surrounding the edge display area, the display panel further includes a plurality of pixels, the pixels are disposed in the edge display area and the normal display area, the light-transmitting area is not provided with the pixels, the display panel control method comprising:
responding to a front shooting starting instruction, controlling the display panel to enter a front shooting mode, wherein in the front shooting mode, when an input picture is a pure color picture, the brightness of the edge display area is smaller than that of the normal display area;
responding to a front shooting end instruction, and controlling the display panel to enter a normal display mode, wherein in the normal display mode, when an input picture is a pure color picture, the brightness of the edge display area is equal to that of the normal display area;
in the pre-shooting mode, when the input picture is a pure color picture, the brightness of the pixels is gradually increased in the direction from the light-transmitting area to the normal display area in the edge display area.
2. The display panel control method according to claim 1,
in the pre-shooting mode, when the input picture is a pure color picture, the brightness of the pixel is gradually increased from zero in the direction from the light-transmitting area to the normal display area in the edge display area.
3. The display panel control method according to claim 2,
in the edge display region, the number of the pixels is 32, 64, 128 or 256 in a direction from the light-transmitting region to the normal display region.
4. The display panel control method according to claim 1, wherein the pixel includes a plurality of sub-pixels,
in the pre-shooting mode, when an input picture is a pure-color picture, the data voltage value output to any sub-pixel in the edge display area is smaller than the data voltage value output to any sub-pixel in the normal display area.
5. A display device, comprising:
a display panel including a light-transmitting region, a display region surrounding the light-transmitting region, and a peripheral region surrounding the display region, the display region including an edge display region surrounding the light-transmitting region and a normal display region surrounding the edge display region, the display panel further including a plurality of pixels, the pixels being disposed in the edge display region and the normal display region, the light-transmitting region not being provided with the pixels;
the front camera is covered by the light-transmitting area in the direction perpendicular to the plane of the display panel;
the driving chip is used for responding to a front shooting starting instruction and controlling the display panel to enter a front shooting mode, and in the front shooting mode, when an input picture is a pure-color picture, the brightness of the edge display area is smaller than that of the normal display area;
the driving chip is further used for responding to a front shooting ending instruction and controlling the display panel to enter a normal display mode, and in the normal display mode, when an input picture is a pure color picture, the brightness of the edge display area is equal to that of the normal display area;
in the pre-shooting mode, when the input picture is a pure color picture, the brightness of the pixels is gradually increased in the direction from the light-transmitting area to the normal display area in the edge display area.
6. The display device according to claim 5,
in the pre-shooting mode, when the input picture is a pure color picture, the brightness of the pixel is gradually increased from zero in the direction from the light-transmitting area to the normal display area in the edge display area.
7. The display device according to claim 6,
in the edge display region, the number of the pixels is 32, 64, 128 or 256 in a direction from the light-transmitting region to the normal display region.
8. The display device according to claim 5, wherein the pixel includes a plurality of sub-pixels,
in the pre-shooting mode, when an input picture is a pure-color picture, the data voltage value output to any sub-pixel in the edge display area is smaller than the data voltage value output to any sub-pixel in the normal display area.
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| CN112311998A (en) | 2019-07-26 | 2021-02-02 | 中兴通讯股份有限公司 | Electronic device and method for photographing and displaying of camera under screen, photographing and displaying unit and memory |
| CN114913814B (en) * | 2019-09-29 | 2023-06-27 | 武汉天马微电子有限公司 | Display panel driving method, display driving device and electronic equipment |
| US11508286B2 (en) | 2019-09-29 | 2022-11-22 | Wuhan Tianma Micro-Electronics Co., Ltd. | Method for driving a display panel, display driving device and electronic device |
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| CN109192123A (en) | 2019-01-11 |
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