CN112133197A - Display screen, optical compensation method and optical compensation system of under-screen camera in display screen - Google Patents
Display screen, optical compensation method and optical compensation system of under-screen camera in display screen Download PDFInfo
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- CN112133197A CN112133197A CN202011048605.XA CN202011048605A CN112133197A CN 112133197 A CN112133197 A CN 112133197A CN 202011048605 A CN202011048605 A CN 202011048605A CN 112133197 A CN112133197 A CN 112133197A
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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Abstract
The invention discloses a display screen, an optical compensation method and an optical compensation system of an off-screen camera in the display screen, and relates to the technical field of display; the display screen comprises a lower camera and a light sensing device; the orthographic projection of the under-screen camera on the light-emitting surface of the display screen is positioned in the display area and used for shooting an external picture; the display area is provided with sub-pixels which are arranged in an array mode, and the sub-pixels are used for displaying pictures; the display area comprises a first sub-display area, and the orthographic projection of the first sub-display area on the light-emitting surface of the display screen and the orthographic projection of the lower screen camera on the light-emitting surface of the display screen are at least partially overlapped; the orthographic projection of the light sensing device on the light emitting surface of the display screen and the orthographic projection of the lower camera on the light emitting surface of the display screen are at least partially overlapped and used for sensing and calculating color compensation parameters of a shot external picture; and at least part of the sub-pixels in the first sub-display area are used for carrying out color compensation on an external picture shot by the under-screen camera. The method is favorable for correcting the color of the shot picture and improving the authenticity of the shot picture.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display screen, an optical compensation method and an optical compensation system of an under-screen camera in the display screen.
Background
Among the prior art, the setting of camera has become a trend under the screen, because display panel's rete is more, can make the picture colour that camera was shot under the screen to deviate to some extent, need mend and correct. Therefore, it is desirable to provide a display screen with simple and convenient structure for correcting the color of the photographed image when the camera is used for photographing.
Disclosure of Invention
In view of the above, the present invention provides a display screen, an optical compensation method and an optical compensation system for an off-screen camera in the display screen, so as to solve the problem of color deviation of a picture captured by the off-screen camera.
In a first aspect, the present application provides a display screen, including a display area, a non-display area at least partially surrounding the display area, an under-screen camera, and a light-sensing device; wherein the content of the first and second substances,
the orthographic projection of the under-screen camera on the light-emitting surface of the display screen is positioned in the display area and used for shooting an external picture;
the display area is provided with sub-pixels which are arranged in an array mode, and the sub-pixels are used for displaying pictures;
the display area comprises a first sub-display area, and the orthographic projection of the first sub-display area on the light-emitting surface of the display screen is at least partially overlapped with the orthographic projection of the lower screen camera on the light-emitting surface of the display screen;
the orthographic projection of the light sensing device on the light-emitting surface of the display screen and the orthographic projection of the lower screen camera on the light-emitting surface of the display screen are at least partially overlapped and used for sensing and calculating color compensation parameters for the shot external picture;
at least part of the sub-pixels in the first sub-display area are used for carrying out color compensation on an external picture shot by the under-screen camera.
In a second aspect, the present application provides an optical compensation method for an off-screen camera in a display screen, which is used for the display screen;
the optical compensation method includes:
the under-screen camera is started, and color compensation parameters for the shot external picture are sensed and calculated according to the light sensing device;
and opening the sub-pixels corresponding to the required compensation colors in the first sub-display area according to the color compensation parameters, performing color compensation on the external picture shot by the camera under the screen, and shooting the external picture.
In a third aspect, the present application provides an optical compensation system for an off-screen camera in a display screen, which is used for the display screen;
the method comprises the following steps: the device comprises a detection analysis module, a calculation module and a display driving module;
the display driving module controls the opening of the under-screen camera;
the detection analysis module and the calculation module are used for sensing and calculating color compensation parameters for the shot external picture according to the light sensing device;
the display driving module is used for opening sub-pixels corresponding to the required compensation colors in the first sub-display area and performing color compensation on the outside pictures shot by the camera under the screen.
Compared with the prior art, the display screen, the optical compensation method and the optical compensation system of the off-screen camera in the display screen at least realize the following beneficial effects:
the application provides a display screen, an optical compensation method and an optical compensation system of a middle-screen lower camera of the display screen, wherein a light sensing device is arranged in the display screen, and orthographic projection of the light sensing device on a light-emitting surface of the display screen and orthographic projection of the lower camera on the light-emitting surface of the display screen are at least partially overlapped for sensing and calculating color compensation parameters of a shot external picture; the sub-pixels in the display screen comprise sub-pixels positioned in a first sub-display area, and the orthographic projection of the first sub-display area on the light-emitting surface of the display screen is at least partially overlapped with the orthographic projection of the lower camera on the light-emitting surface of the display screen; performing color compensation on an external picture shot by the camera under the screen by using the sub-pixels positioned in the first sub-display area; the color correction of the picture shot by the screen lower camera is facilitated, so that the picture shot by the screen lower camera has good color. And the sub-pixel that this application was used for carrying out the color to the picture of shooing and mends is the sub-pixel in original display screen, therefore need not additionally to introduce the great color compensation device of size, and the technology change is little, and the adjustment mode is simple, can not increase the preparation technology of display screen.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic view of a display screen provided in an embodiment of the present application;
FIG. 2 is another schematic view of a display screen provided in an embodiment of the present application;
FIG. 3 is a schematic view of a display screen provided in an embodiment of the present application;
fig. 4 illustrates an optical compensation method for an off-screen camera in a display screen according to an embodiment of the present disclosure;
fig. 5 illustrates another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present disclosure;
fig. 6 illustrates another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present disclosure;
fig. 7 illustrates another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present application;
fig. 8 illustrates another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present disclosure;
fig. 9 illustrates another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present disclosure;
fig. 10 illustrates an optical compensation system of an off-screen camera in a display screen according to an embodiment of the present application;
fig. 11 is a top view of a display device according to an embodiment of the present application.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Among the prior art, the setting of camera under the screen has become a trend, and the camera design content is under the current screen: when the camera area displays on the display panel, RGB pixels (red sub-pixel, green sub-pixel and blue sub-pixel) are bright, and W pixels (white sub-pixel) are not bright; during shooting, the RGB pixel is not bright, and the W pixel is bright. Because the film layer of display panel is more, can make the picture colour that the camera was shot under the screen to have some deviations, need revise. Therefore, it is desirable to provide a display screen with simple and convenient structure for correcting the color of the photographed image when the camera is used for photographing.
In view of the above, the present invention provides a display screen, an optical compensation method and an optical compensation system for an off-screen camera in the display screen, so as to solve the problem of color deviation of a picture captured by the off-screen camera.
Fig. 1 is a schematic view of a display screen provided in an embodiment of the present application, fig. 2 is another schematic view of the display screen provided in the embodiment of the present application, fig. 3 is another schematic view of the display screen provided in the embodiment of the present application, please refer to fig. 1 to fig. 3, the present application provides a display screen 100, which includes a display area 10, a non-display area 20 at least partially surrounding the display area 10, an off-screen camera 30, and a light sensing device 50; wherein the content of the first and second substances,
the orthographic projection of the under-screen camera 30 on the light-emitting surface of the display screen 100 is positioned in the display area 10 and is used for shooting an external picture;
the display area 10 is provided with sub-pixels arranged in an array, and the sub-pixels are used for displaying pictures;
the display area 10 comprises a first sub-display area 31, and the orthographic projection of the first sub-display area 31 on the light-emitting surface of the display screen 100 and the orthographic projection of the off-screen camera 30 on the light-emitting surface of the display screen 100 are at least partially overlapped;
the orthographic projection of the light sensing device 50 on the light-emitting surface of the display screen 100 and the orthographic projection of the under-screen camera 30 on the light-emitting surface of the display screen 100 are at least partially overlapped and used for sensing and calculating color compensation parameters for the shot external picture;
at least part of the sub-pixels 41/42/43/44 in the first sub-display area 31 are used for performing color compensation on an external picture shot by the off-screen camera 30.
With continued reference to fig. 1-3, in particular, the present application provides a display screen 100, which includes a display area 10 and a non-display area 20, wherein the non-display area 20 at least partially surrounds the display area 10, that is, the present application does not require the display screen 100 to be a display screen 100 in which the non-display area 20 completely surrounds the display area 10; the present application is only exemplified by a display screen 100 in which the non-display area 20 surrounds the display area 10.
The display area 10 includes at least one under-screen camera 30, the display screen 100 further includes a plurality of light sensing devices 50 and a plurality of sub-pixels, the plurality of sub-pixels 42/43/44 can be arranged in the display area 10 in an array, and the sub-pixels 42/43/44 arranged in the array are used for displaying images of the display screen 100. The orthographic projection of the off-screen camera 30 on the light-emitting surface of the display screen 100 is located inside the display area 10, the position of the off-screen camera 30 in the application can also be used for displaying normal pictures when the picture is not taken, and the off-screen camera 30 is used for taking external pictures when needed. When the display screen 100 displays a picture, the picture of the full display screen 100 is displayed, the picture display area of the display screen 100 is increased, and full screen display is facilitated; when the display screen 100 needs to be used for photographing, the off-screen camera 30 can be used for photographing, and the picture of the area where the off-screen camera 30 is located can be selected to be not displayed at this time; the display screen 100 has comprehensive display effect, and at least has the function of (preposition) photographing, so that the functional diversity of the display screen 100 is improved.
It should be noted that fig. 2 and fig. 3 of the present application illustrate schematic diagrams of a display screen 100, wherein sub-pixels in a non-under-screen camera area in a display area generally include at least red, green, and blue sub-pixels, and may further include a white sub-pixel; in order to ensure the light transmittance of the under-screen camera area, a white sub-pixel must be disposed in the under-screen camera area, and the area of the disposed white sub-pixel is larger than the areas of the other sub-pixels, so as to increase the light transmittance area and ensure the phase taking effect during photographing.
The display area 10 includes a first sub-display area 31, a forward projection of the first sub-display area 31 on a light-emitting surface of the display screen 100 and a forward projection of the off-screen camera 30 on a light-emitting surface of the display screen 100 at least partially overlap, and most of sub-pixels 41/42/43/44 included in the first sub-display area 31 are sub-pixels 41/42/43/44 of an off-screen camera area, or as shown in fig. 2, all are sub-pixels 41/42/43/44 of the off-screen camera area. The orthographic projection of the light sensing device 50 on the light emitting surface of the display screen 100 in the display area 10 and the orthographic projection of the under-screen camera 30 on the light emitting surface of the display screen 100 are at least partially overlapped, when an external picture is shot, the phase is taken through the under-screen camera 30, at least part of the light sensing device 50 located in the under-screen camera area can be used for sensing parameter information such as color and brightness of the external picture shot by the under-screen camera 30, the color compensation parameter used for the shot external picture is calculated by collecting part of the parameter information of the shot external picture through the light sensing device 50, and then at least part of the sub-pixels 41/42/43/44 in the first sub-display area 31 are lightened to perform color compensation on the external picture shot by the under-screen camera 30 through analysis of the color compensation parameter.
The method comprises the steps that parameter information of an external picture shot by the off-screen camera 30 is obtained through the light sensing device 50, the difference between the picture of the off-screen camera 30 and the actually shot external picture is calculated, and the picture of the off-screen camera 30 is subjected to color compensation by opening at least part of sub-pixels 41/42/43/44 in an off-screen camera area (a first sub-display area 31) so that the parameter information of the picture of the off-screen camera 30 and the actually shot external picture is nearly the same or even completely the same; the method is beneficial to enabling the picture obtained by shooting by the camera 30 under the screen to be closer to the actually shot external picture, and the authenticity and the accuracy of the picture shot by the camera 30 under the screen are improved. In addition, the sub-pixels used for color correction of the shot picture are the sub-pixels in the original display screen 100, so that a color compensation device with a large size does not need to be additionally introduced, the process change is small, the adjusting mode is simple, and the manufacturing process of the display screen cannot be increased.
It should be noted that fig. 2 and fig. 3 only show an embodiment of the display screen 100, where the illustrated components do not represent actual situations in the display screen 100, and the present application does not limit the arrangement, size, and the like of sub-pixels, and does not limit that one under-screen camera area only includes six groups of pixel units 40, nor limit that the optical sensing device 50 only can be located inside the under-screen camera area; for example, the designer may arrange the array of light sensing devices 50 in the entire display area 10 according to the requirement, and reuse the array as a fingerprint recognition unit. This application sets up light sense device 50 in black matrix district, can not influence the picture display of display screen 100, is favorable to improving the aperture opening ratio of display screen 100, ensures the good display effect of display screen 100.
With continued reference to fig. 2 and 3, optionally, the color compensation parameters include compensation colors and compensation values;
the light sensing device 50 is used for sensing and calculating color compensation parameters for the captured external picture, and specifically includes:
the light sensing device 50 is configured to sense a light transmission spectrum of the external picture captured by the off-screen camera 30 and transmitted through the off-screen camera 30, and the light transmission spectrum is used to calculate a compensation color and a compensation value required by the external picture captured by the off-screen camera 30.
Specifically, when the off-screen camera 30 shoots an external picture, the color compensation parameters required by the captured picture sensed by the light sensing device 50 at least include a compensation color and a compensation value. The light sensing device 50 is configured to sense a light transmission spectrum of the external picture captured by the off-screen camera 30 through the off-screen camera 30, that is, a light transmission spectrum of a picture taken by the off-screen camera 30, and further calculate a compensation color and a compensation value required by the external picture captured by the off-screen camera 30 through the obtained light transmission spectrum.
At least part of the sub-pixels 41/42/43/44 in the under-screen camera area (the first sub-display area 31) are called and opened through the calculated compensation color and the compensation value, so as to perform color compensation on the picture taken by the under-screen camera 30, namely, after the transmission spectrum of the under-screen camera 30 is obtained, the compensated color and the compensation value required by the picture taken can be relatively accurately calculated, the degree of color compensation on the taken picture is finer, and the parameter information of the picture taken by the under-screen camera 30 and the actually taken outside picture is nearly the same or even completely the same; the method is beneficial to enabling the picture obtained by shooting by the camera 30 under the screen to be closer to the actually shot external picture, and the authenticity and the accuracy of the picture shot by the camera 30 under the screen are improved.
With reference to fig. 2 and fig. 3, optionally, the orthographic projection of the first sub-display area 31 on the light-emitting surface of the display screen 100 is greater than or equal to the orthographic projection of the lower camera 30 on the light-emitting surface of the display screen 100.
Specifically, it is optionally set that the sub-pixels 41/42/43/44 included in the first sub-display area 31 are all sub-pixels 41/42/43/44 of the under-screen camera area, that is, the orthographic projection of the first sub-display area 31 on the light-emitting surface of the display screen 100 is greater than or equal to the orthographic projection of the under-screen camera 30 on the light-emitting surface of the display screen 100; therefore, the sub-pixels 41/42/43/44 included in the first sub-display area 31 can be turned on to perform color compensation on the external picture shot by the off-screen camera 30, a partial area in the off-screen camera area is avoided, sub-pixels which can be moved to perform color compensation on the shot picture do not exist in the partial area, and it is ensured that each position in the off-screen camera area has the sub-pixels 41/42/43/44 which can be turned on to perform color compensation on the shot picture.
Performing color compensation on the captured ambient picture by turning on at least part of the required sub-pixels 41/42/43/44 in the first sub-display area 31, so that the parameter information of the picture captured by the off-screen camera 30 and the actually captured ambient picture are nearly the same or even completely the same; the method is beneficial to enabling the picture obtained by shooting by the camera 30 under the screen to be closer to the actually shot external picture, and the authenticity and the accuracy of the picture shot by the camera 30 under the screen are improved.
With continued reference to fig. 2 and fig. 3, optionally, the sub-pixels at least include a white sub-pixel 41, a first color sub-pixel 42, a second color sub-pixel 43, and a third color sub-pixel 44.
Specifically, the sub-pixels included in the display area 10 of the display panel 100 at least include a white sub-pixel 41, a first color sub-pixel 42, a second color sub-pixel 43 and a third color sub-pixel 44, a group of the white sub-pixel 41, the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 in the first display area 31 form one pixel unit 40, and a group of the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 in the non-first display area form one pixel unit 40; the first color sub-pixel 42, the second color sub-pixel 43, and the third color sub-pixel 44 are, for example, a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and may also be sub-pixels of other colors. Since red, green and blue are three primary colors, and three colors of red, green and blue can be used to generate various colors, the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 are red sub-pixels, green sub-pixels and blue sub-pixels, that is, they can be used to be lighted up to perform various color compensation on the captured external picture.
At least part of the sub-pixels 41/42/43/44 included in the first sub-display area 31 are used for performing color compensation on the external picture shot by the off-screen camera 30, so that parameter information of a picture taken by the off-screen camera 30 and the actually shot external picture is nearly the same or even completely the same, the picture shot by the off-screen camera 30 is more close to the actually shot external picture, and the authenticity and the accuracy of the picture shot by the off-screen camera 30 are improved.
With continued reference to fig. 2 and fig. 3, optionally, the orthographic projection of the off-screen camera 30 on the light-emitting surface of the display screen 100 is circular, rectangular or polygonal.
Specifically, in the current technology, since the sub-pixels 41/42/43/44 are generally rectangular in shape, as shown in fig. 2, in the display screen 100 provided by the present application, the under-screen camera 30 may be optionally configured to be rectangular, that is, the orthographic projection of the under-screen camera 30 on the light-emitting surface of the display screen 100 is rectangular; the rectangular sub-pixels are arranged in the rectangular under-screen camera 30, so that the sub-pixels are conveniently and tightly arranged in the under-screen camera area, and the situation that the sub-pixels are partially located in the under-screen camera area and the other sub-pixels are located in the non-under-screen camera area is avoided; the design is favorable for conveniently adjusting the opening and closing of all sub-pixels in the camera area under the screen when the color compensation is carried out on the shot external picture; any sub-pixel in the whole under-screen camera area is adjusted to be used for carrying out color compensation on the shot picture, and the adjusted sub-pixel cannot influence the picture display of the display area 10 outside the under-screen camera area.
Fig. 3 shows an example that the orthographic projection of the off-screen camera 30 on the light emitting surface of the display screen 100 is an ellipse, it should be noted that the present application does not limit the parameters of the shape, the number, the area, and the like of the off-screen cameras 30 in the display screen 100, for example, the number of the off-screen cameras 30 in the display screen 100 may also be 2, 3, 4, or more, the present application does not limit the arrangement manner of the off-screen cameras 30 in one display screen 100, and the parameters of the off-screen cameras 30 can be adjusted by designers according to the requirements.
Fig. 4 shows an optical compensation method for a lower-screen camera in a display screen according to an embodiment of the present application, please refer to fig. 2/3 and fig. 4, and based on the same inventive concept, the present application provides an optical compensation method for a lower-screen camera in a display screen, which is used for the display screen 100;
the optical compensation method comprises the following steps:
and 102, opening the sub-pixels 41/42/43/44 corresponding to the compensation color required in the first sub-display area 31 according to the color compensation parameter, performing color compensation on the external picture shot by the off-screen camera 30, and shooting the external picture.
Specifically, the present application further provides an optical compensation method for the off-screen camera 30 in the display screen 100, where the method includes step 101 and step 102, in step 101, when the off-screen camera 30 is turned on, that is, when the display screen 100 is used to shoot an external picture, parameter information of the external picture shot by the off-screen camera 30 is obtained through the light sensing device 50, and a color difference between a picture taken by the off-screen camera 30 and the actually shot external picture is calculated, that is, a color compensation parameter required by the shot external picture is obtained and calculated through the light sensing device 50; then in step 102, according to the color compensation parameters calculated in step 101, the sub-pixels 41/42/43/44 corresponding to the compensation colors required to be applied to the captured image in the first sub-display area 31 are turned on, and color compensation is performed on the external image captured by the off-screen camera 30 through at least one turned-on sub-pixel 41/42/43/44, so that the parameter information of the captured image of the off-screen camera 30 and the parameter information of the external image actually required to be captured are nearly the same, even completely the same; and then the screen camera 30 is controlled to shoot the outside picture, and the parameter information of the shot picture and the outside picture which needs to be shot actually is nearly the same or even completely the same, so that the picture shot by the screen camera 30 is closer to the actually shot outside picture, and the authenticity and the accuracy of the picture shot by the screen camera 30 are improved. In addition, the sub-pixels used for color correction of the shot picture are the sub-pixels in the original display screen 100, so that a color compensation device with a large size does not need to be additionally introduced, the process change is small, and the adjusting mode is simple.
Fig. 5 is a diagram illustrating another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present application, please refer to fig. 2/3 and fig. 5, where optionally, the color compensation parameter includes a compensation color and a compensation value;
the color compensation parameters for the captured external picture are sensed and calculated by the light sensing device 50, which specifically includes:
the light sensing device 50 is configured to sense a light transmission spectrum of the external picture captured by the off-screen camera 30 and transmitted through the off-screen camera 30, and the light transmission spectrum is used to calculate a compensation color and a compensation value required by the external picture captured by the off-screen camera 30.
Specifically, when the off-screen camera 30 shoots an external picture, the color compensation parameters required by the captured picture sensed by the light sensing device 50 at least include a compensation color and a compensation value.
In step 101, "sensing and calculating the color compensation parameter for the captured external image according to the light sensing device 50" specifically includes: the light sensing device 50 is configured to sense a light transmission spectrum of the external picture captured by the off-screen camera 30 through the off-screen camera 30, that is, a light transmission spectrum of a picture taken by the off-screen camera 30, and further calculate a compensation color and a compensation value required by the external picture captured by the off-screen camera 30 through the obtained light transmission spectrum. At least part of the sub-pixels 41/42/43/44 in the under-screen camera area (the first sub-display area 31) are called and opened through the calculated compensation color and the compensation value, so as to perform color compensation on the picture taken by the under-screen camera 30, namely, after the transmission spectrum of the under-screen camera 30 is obtained, the compensated color and the compensation value required by the picture taken can be relatively accurately calculated, the degree of color compensation on the taken picture is finer, and the parameter information of the picture taken by the under-screen camera 30 and the actually taken outside picture is nearly the same or even completely the same; the method is beneficial to enabling the picture obtained by shooting by the camera 30 under the screen to be closer to the actually shot external picture, and the authenticity and the accuracy of the picture shot by the camera 30 under the screen are improved.
Fig. 6 shows another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present application, please refer to fig. 2/3 and fig. 6, and optionally, further includes: acquiring and analyzing the dominant hue of the transmission screen lower camera 30 through the transmission spectrum;
the method specifically comprises the following steps: the color coordinates of a plurality of colors transmitted through the off-screen camera 30 are obtained through the transmission spectrum, the transmission range of any color transmitted through the off-screen camera 30 is calculated through the color coordinates, and the color with the largest transmission range is the main tone transmitted through the off-screen camera 30.
Specifically, after the external picture shot by the off-screen camera 30 is sensed by the light sensing device 50 and passes through the light transmission spectrum of the off-screen camera 30, the dominant hue of the photographed picture of the off-screen camera 30 can be further obtained and analyzed through the obtained light transmission spectrum, and the specific process is as follows: the color coordinates of a plurality of colors transmitted through the off-screen camera 30 are obtained through the transmission spectrum, the transmission range of any color transmitted through the off-screen camera 30 is calculated through the color coordinates, and the color with the largest transmission range is the main tone transmitted through the off-screen camera 30.
The color coordinates are coordinates of colors, and can be used to determine a point on the chromaticity diagram, where the point accurately represents the emission color, i.e., the color coordinates accurately represent the color. The color coordinates corresponding to the picture taken by the off-screen camera 30 also represent the colors in the picture taken, and the maximum color area included in the picture taken is the main color tone of the picture taken.
After acquiring the dominant hue of the external picture captured by the off-screen camera 30, for example, the dominant hue is green, but the color of the green of the captured picture is not green enough compared with the real color, the color of the captured picture can be corrected by opening at least part of the green sub-pixels in the first display area 10, so that the color of the external picture captured by the off-screen camera 30 is approximately the same as or the same as the actual color; the method is beneficial to enabling the picture obtained by shooting by the camera 30 under the screen to be closer to the actually shot external picture, and the authenticity and the accuracy of the picture shot by the camera 30 under the screen are improved.
Referring to fig. 2/3 and 6, optionally, after obtaining and analyzing the dominant hue passing through the under-screen camera 30, the optical compensation method further includes: the optical spectra of the several colors transmitted through the under-screen camera 30 are measured.
Specifically, after obtaining the dominant hue of the picture captured by the off-screen camera 30, an optical spectrum corresponding to at least a portion of colors in the captured picture may be further measured, where the optical spectrum is a pattern in which monochromatic lights dispersed are sequentially arranged according to the size of the wavelength (or frequency) after the polychromatic lights are dispersed by a dispersion system (e.g., a prism, a grating), and the colors transmitted through the off-screen camera 30 may be further analyzed through the optical spectrum.
Referring to fig. 2/3 and fig. 6, optionally, the color compensation parameters for the captured external frame are calculated, specifically: and comparing the dominant tone, the color coordinate and the optical spectrum with the actual dominant tone, the actual color coordinate and the actual optical spectrum of the shot external picture to obtain the compensation color and the compensation value required by the shot external picture.
Specifically, after acquiring the dominant hue, the color coordinate, and the optical spectrum when the picture captured by the off-screen camera 30 passes through the off-screen camera 30, the step 101 of "calculating the color compensation parameter for the captured external picture" may specifically be to compare the acquired hue, the color coordinate, and the optical spectrum with the actual dominant hue, the actual color coordinate, and the actual optical spectrum corresponding to the captured external picture, calculate the difference between the picture passing through the off-screen camera 30 and the actual captured external picture, and further obtain the compensation color and the compensation value required to compensate the picture by turning on at least part of the sub-pixels 41/42/43/44.
Color compensation is carried out on the external picture shot by the under-screen camera 30 by opening the sub-pixels 41/42/43/44 corresponding to the compensation colors required to be applied to the phase-taking picture in the first sub-display area 31, so that the parameter information of the phase-taking picture of the under-screen camera 30 and the parameter information of the external picture actually required to be shot are nearly the same or even completely the same; the method is beneficial to enabling the picture obtained by shooting by the camera 30 under the screen to be closer to the actually shot external picture, and the authenticity and the accuracy of the picture shot by the camera 30 under the screen are improved.
Optionally, the desired compensation color comprises at least the same color as the dominant hue.
Specifically, for example, when the image captured by the off-screen camera 30 is a blue sky, the light-sensing device 50 senses that the captured environment is a sky, and if the image transmitted through the off-screen camera 30 is not blue enough, the calculated required compensation color at least includes blue; the blue sky has a blue main color, and the compensation color is the same as the main color of the photographed image. Or for example, when the photographed image is a summer grassland, the light sensing device 50 senses that the photographed environment is a green plant, and if the image passing through the under-screen camera 30 is not green enough, the calculated required compensation color at least includes green; the grassland in summer is covered with green grass, the corresponding main tone is also green, and the compensation color is the same as the main tone color of the shot picture. Or for example, when taking a crown-free photograph, the light sensing device 50 senses that the photographed environment is a person, and if the face of the person in the picture of the off-screen camera 30 is tragic white, the calculated required compensation color at least comprises red; the color corresponding to the face is mainly red (the face color is ruddy), so that the saturation of the face color of the face is improved.
Equivalently, the color of the shot picture is enhanced by starting the sub-pixels 41/42/43/44 with the same color as the main color tone of the shot picture, so that the color parameters of the picture finally shot by the off-screen camera 30 are nearly the same or completely the same as the actual parameters of the external picture, the picture shot by the off-screen camera 30 is closer to the actually shot external picture, and the authenticity and the accuracy of the picture shot by the off-screen camera 30 are improved.
Optionally, the desired compensation color comprises at least a color different from the dominant hue.
Specifically, for example, when the image captured by the off-screen camera 30 is a blue sky, the light-sensing device 50 senses that the captured environment is a sky, and if the image transmitted through the off-screen camera 30 is too blue, the calculated required compensation color at least includes red; since the color opposite to blue is yellow, the colors to be compensated may also include at least red and green, and the dominant hue corresponding to the blue sky is blue, and the compensation color is different from the dominant hue of the photographed picture.
Equivalently, the color complementation is carried out on the shot picture by starting at least part of the sub-pixels 41/42/43/44 with the color different from the main color tone of the shot picture, so that the color parameters of the picture finally shot by the off-screen camera 30 are nearly the same or completely the same as the actual parameters of the outside picture, the picture shot by the off-screen camera 30 is closer to the actually shot outside picture, and the authenticity and the accuracy of the picture shot by the off-screen camera 30 are improved.
Fig. 7 shows another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present application, please refer to fig. 2/3 and fig. 7, optionally, when turning on the sub-pixels 41/42/43/44 corresponding to the compensation color required in the first sub-display area 31, the optical compensation method further includes: the brightness of the sub-pixels 41/42/43/44 and the number of sub-pixels 41/42/43/44 that are turned on are adjusted.
Specifically, when the color compensation is performed on the captured external picture by turning on at least one sub-pixel 41/42/43/44 of at least one color in the first sub-display area 31, not only the color of the turned-on sub-pixel 41/42/43/44, but also the brightness of the turned-on sub-pixel 41/42/43/44 and the number of the turned-on sub-pixels 41/42/43/44 can be adjusted; that is, the number, corresponding color, brightness and the like of the sub-pixels that can be turned on in the first display area 31 to perform color compensation on the shot picture are not specifically limited in the present application, and a user can adjust the positions, the number, the brightness and the like of the sub-pixels 41/42/43/44 that need to be turned on in the first display area 31 as required, so that the color parameters of the picture finally shot by the off-screen camera 30 are closer to or completely the same as the actual parameters of the external picture, so that the picture shot by the off-screen camera 30 is closer to the actually shot external picture, and the reality and the accuracy of the picture shot by the off-screen camera 30 are improved.
Fig. 8 is a diagram illustrating another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present application, please refer to fig. 2/3 and fig. 8, where optionally, the sub-pixels at least include a white sub-pixel 41, a first color sub-pixel 42, a second color sub-pixel 43 and a third color sub-pixel 44;
the optical compensation method further includes:
after the off-screen camera 30 is turned on, the white sub-pixel 41 in the first sub-display area 31 is controlled to emit light, and the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 are controlled not to emit light.
Specifically, the sub-pixels included in the display area 10 of the display panel 100 at least include a white sub-pixel 41, a first color sub-pixel 42, a second color sub-pixel 43 and a third color sub-pixel 44, a group of the white sub-pixel 41, the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 in the first display area 31 form one pixel unit 40, and a group of the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 in the non-first display area form one pixel unit 40; the first color sub-pixel 42, the second color sub-pixel 43, and the third color sub-pixel 44 are, for example, a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and may also be sub-pixels of other colors. Since red, green and blue are three primary colors, and the three colors of red, green and blue can be used to generate various colors, the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 are red sub-pixels, green sub-pixels and blue sub-pixels, which can be used to be lit up to perform color compensation on the captured external picture.
The step 101 of the optical compensation method further includes: after the off-screen camera 30 is turned on, only the white sub-pixel 41 in the off-screen camera area may be turned on, that is, the white sub-pixel 41 in the first sub-display area 31 is controlled to emit light, and the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 in the first sub-display area 31 are controlled not to emit light, so as to avoid the influence of the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 in the camera area on the color of the picture to be photographed. At this time, when the light sensing device 50 senses the light transmission spectrum of the picture passing through the off-screen camera 30, the light transmission spectrum passing through the white sub-pixel 41 in the first sub-display area 31 is determined, and then the compensation color and the compensation value required for the external picture shot by the off-screen camera 30 are calculated according to the obtained light transmission spectrum. At least part of the sub-pixels 41/42/43/44 in the area (the first sub-display area 31) of the off-screen camera is turned on through the calculated compensation color and the compensation value so as to perform color compensation on the picture taken by the off-screen camera 30, so that the reality and the accuracy of the picture taken by the off-screen camera 30 are improved.
Fig. 9 shows another optical compensation method for an off-screen camera in a display screen according to an embodiment of the present application, please refer to fig. 2/3 and 9, and optionally, turn on a sub-pixel corresponding to a compensation color required in the first sub-display area 31, specifically:
at least one of the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 in the first sub-display region 31 is turned on.
Specifically, the sub-pixels in the first sub-display area 31 at least include a white sub-pixel 41, a first color sub-pixel 42, a second color sub-pixel 43, and a third color sub-pixel 44, and the step 102 of turning on the sub-pixel 41/42/43/44 corresponding to the compensation color required in the first sub-display area 31 specifically includes: at least one of the first color sub-pixel 42, the second color sub-pixel 43 and the third color sub-pixel 44 in the first sub-display area 31 is turned on, or at least one of the at least one color sub-pixels in the first sub-display area 31 is turned on. Furthermore, the positions, the number, the brightness and the like of the sub-pixels to be opened in the first sub-display area 31 are adjusted according to requirements, so that the color parameters of the picture finally obtained by the off-screen camera 30 and the actual parameters of the external picture are closer to or completely the same, the picture obtained by the off-screen camera 30 is closer to the actually shot external picture, and the reality and the accuracy of the picture shot by the off-screen camera 30 are improved.
It should be noted that, in the present application, any sub-pixel 41/42/43/44 located in the first sub-display area 31, or at least a part of any sub-pixel located in the under-screen camera area, may be lit to perform color compensation on the captured external picture, and the present application does not limit the sub-pixels located in the under-screen camera area that can be lit, and the sub-pixels used for color compensation obtained through calculation may be turned on.
Except that the color compensation is carried out on the shot external picture by starting at least part of sub-pixels through the identification and calculation of the display screen self-component, the color effect of the image can be adjusted by manually increasing or decreasing the light transmission of the corresponding color by a user, so that the color parameters of the picture finally shot by the under-screen camera are closer to or completely the same as the actual parameters of the external picture, and the reality and the accuracy of the picture shot by the under-screen camera are improved.
Fig. 10 is a diagram illustrating an optical compensation system of a display screen lower-screen camera according to an embodiment of the present application, please refer to fig. 2/3 and fig. 10, and based on the same inventive concept, the present application provides an optical compensation system 200 of a display screen lower-screen camera, which is used for the display screen 100;
the method comprises the following steps: a detection analysis module 201, a calculation module 202 and a display driving module 203;
the display driving module 203 controls the under-screen camera 30 to be started;
the detection analysis module 201 and the calculation module 202 are used for sensing and calculating color compensation parameters for the captured external picture according to the light sensing device 50;
the display driving module 203 is configured to turn on the sub-pixels 41/42/43/44 corresponding to the compensation color required in the first sub-display area 31, and perform color compensation on the external picture captured by the off-screen camera 30.
Specifically, the present application further provides an optical compensation system for the off-screen camera in the display screen, where the system 200 at least includes: the display screen comprises a detection analysis module 201, a calculation module 202 and a display driving module 203, wherein the detection analysis module 201 can be arranged in a camera module of the display screen 100, the calculation module 202 is connected with the camera module (the detection analysis module 201) and the display driving module 203, and the display driving module 203 is electrically connected with the display screen 100.
The display driving module 203 is used for controlling the opening and closing of the under-screen camera 30; the detection analysis module 201 and the calculation module 202 can be used for sensing and calculating color compensation parameters for the captured external picture according to the light sensing device 50; the display driving module 203 may also be configured to drive and open sub-pixels corresponding to compensation colors required in the first sub-display area 31, so as to perform color compensation on an external picture captured by the off-screen camera 30; in addition, the display driving module 203 can also be used to control the on and off of any sub-pixel in the display area 10.
At least part of the sub-pixels in the first sub-display area 31 are driven by the optical compensation system 200 to perform color compensation on an external picture shot by the under-screen camera 30, which is beneficial to improving the reality of the shot picture.
Fig. 11 is a top view of a display device according to an embodiment of the present application, please refer to fig. 11, and based on the same inventive concept, the present application further provides a display device 300, where the display device 300 includes a display screen 100, and the display screen 100 is any one of the display screens 100 provided in the present application.
It should be noted that, for the embodiments of the display device 300 provided in the embodiments of the application, reference may be made to the above-mentioned embodiments of the display screen 100, and repeated descriptions are omitted. The display device 300 provided by the present application may be: any product and component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a navigator and the like.
By the embodiment, the display screen, the optical compensation method and the optical compensation system for the under-screen camera in the display screen at least achieve the following beneficial effects:
the application provides a display screen, an optical compensation method and an optical compensation system of a middle-screen lower camera of the display screen, wherein a light sensing device is arranged in the display screen, and orthographic projection of the light sensing device on a light-emitting surface of the display screen and orthographic projection of the lower camera on the light-emitting surface of the display screen are at least partially overlapped for sensing and calculating color compensation parameters of a shot external picture; the sub-pixels in the display screen comprise sub-pixels positioned in a first sub-display area, and the orthographic projection of the first sub-display area on the light-emitting surface of the display screen is at least partially overlapped with the orthographic projection of the lower camera on the light-emitting surface of the display screen; performing color compensation on an external picture shot by the camera under the screen by using the sub-pixels positioned in the first sub-display area; the color correction of the picture shot by the screen lower camera is facilitated, so that the picture shot by the screen lower camera has good color. And the sub-pixel that this application was used for carrying out the color to the picture of shooing and mends is the sub-pixel in original display screen, therefore need not additionally to introduce the great color compensation device of size, and the technology change is little, and the adjustment mode is simple, can not increase the preparation technology of display screen.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (16)
1. A display screen is characterized by comprising a display area, a non-display area at least partially surrounding the display area, a camera under the screen and a light sensing device; wherein the content of the first and second substances,
the orthographic projection of the under-screen camera on the light-emitting surface of the display screen is positioned in the display area and used for shooting an external picture;
the display area is provided with sub-pixels which are arranged in an array mode, and the sub-pixels are used for displaying pictures;
the display area comprises a first sub-display area, and the orthographic projection of the first sub-display area on the light-emitting surface of the display screen is at least partially overlapped with the orthographic projection of the lower screen camera on the light-emitting surface of the display screen;
the orthographic projection of the light sensing device on the light-emitting surface of the display screen and the orthographic projection of the lower screen camera on the light-emitting surface of the display screen are at least partially overlapped and used for sensing and calculating color compensation parameters for the shot external picture;
at least part of the sub-pixels in the first sub-display area are used for carrying out color compensation on an external picture shot by the under-screen camera.
2. The display screen of claim 1, wherein the color compensation parameters include a compensation color and a compensation value;
the light sensing device is used for sensing and calculating color compensation parameters for the shot external picture, and specifically comprises the following steps:
the light sensing device is used for sensing a light transmission frequency spectrum of an external picture shot by the under-screen camera and penetrating through the under-screen camera, and the light transmission frequency spectrum is used for calculating the compensation color and the compensation value required by the external picture shot by the under-screen camera.
3. A display screen as recited in claim 1, wherein an orthographic projection of the first sub-display area on the light exit surface of the display screen is equal to or greater than an orthographic projection of the off-screen camera on the light exit surface of the display screen.
4. A display screen in accordance with claim 1, wherein the subpixels comprise at least a white subpixel, a first color subpixel, a second color subpixel, and a third color subpixel.
5. A display screen according to claim 1, wherein the orthographic projection of the under-screen camera on the light-emitting surface of the display screen is circular, rectangular or polygonal.
6. An optical compensation method for an off-screen camera in a display screen, characterized in that the method is used for the display screen according to any one of claims 1 to 5;
the optical compensation method includes:
the under-screen camera is started, and color compensation parameters for the shot external picture are sensed and calculated according to the light sensing device;
and opening the sub-pixels corresponding to the required compensation colors in the first sub-display area according to the color compensation parameters, performing color compensation on the external picture shot by the camera under the screen, and shooting the external picture.
7. The method of claim 6, wherein the color compensation parameters comprise a compensation color and a compensation value;
the method comprises the following steps of sensing and calculating color compensation parameters for the shot external picture according to the light sensing device, specifically:
the light sensing device is used for sensing a light transmission frequency spectrum of an external picture shot by the under-screen camera and penetrating through the under-screen camera, and the light transmission frequency spectrum is used for calculating the compensation color and the compensation value required by the external picture shot by the under-screen camera.
8. The method of claim 7, further comprising: acquiring and analyzing the dominant hue penetrating through the under-screen camera through the light-transmitting frequency spectrum;
the method specifically comprises the following steps: the color coordinates of a plurality of colors penetrating through the camera under the screen are obtained through the light-transmitting frequency spectrum, the penetrating range of any color penetrating through the camera under the screen is calculated through the color coordinates, and the color with the largest penetrating range is the main tone penetrating through the camera under the screen.
9. The method of claim 8, wherein after obtaining and analyzing the dominant hue transmitted through the off-screen camera, the method further comprises: optical spectra of a plurality of colors transmitted through the under-screen camera are measured.
10. The method for optical compensation of an off-screen camera in a display screen according to claim 9, wherein the calculating of the color compensation parameter for the captured external picture specifically comprises: and comparing the dominant hue, the color coordinate and the optical spectrum with the actual dominant hue, the actual color coordinate and the actual optical spectrum of the shot external picture to obtain the compensation color and the compensation value required by the shot external picture.
11. The method of claim 8, wherein the desired compensation color comprises at least the same color as the dominant hue.
12. The method of claim 8, wherein the desired compensation color comprises at least a color different from the dominant hue.
13. The method for light compensation of an off-screen camera in a display screen of claim 6, wherein when the sub-pixel corresponding to the compensation color required in the first sub-display area is turned on, the method further comprises: adjusting the brightness of the sub-pixels and the number of sub-pixels turned on.
14. The method for compensating light of an off-screen camera in a display screen according to claim 6, wherein the sub-pixels at least comprise a white sub-pixel, a first color sub-pixel, a second color sub-pixel and a third color sub-pixel;
the optical compensation method further includes:
and after the lower screen camera is started, the white sub-pixel in the first sub-display area is controlled to emit light, and the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are controlled not to emit light.
15. The optical compensation method for the off-screen camera in the display screen according to claim 14, wherein the turning on the sub-pixels corresponding to the compensation colors required in the first sub-display area specifically comprises:
and opening at least one of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in the first sub-display area.
16. An optical compensation system for an off-screen camera in a display screen, for use with a display screen as claimed in any one of claims 1 to 5;
the method comprises the following steps: the device comprises a detection analysis module, a calculation module and a display driving module;
the display driving module controls the opening of the under-screen camera;
the detection analysis module and the calculation module are used for sensing and calculating color compensation parameters for the shot external picture according to the light sensing device;
the display driving module is used for opening sub-pixels corresponding to the required compensation colors in the first sub-display area and performing color compensation on the outside pictures shot by the camera under the screen.
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