CN110767197A

CN110767197A - Display control method, difference information determination device, and display device

Info

Publication number: CN110767197A
Application number: CN201910099758.8A
Authority: CN
Inventors: 陈�峰
Original assignee: Kunshan Guoxian Photoelectric Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd; Kunshan Guoxian Photoelectric Co Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2020-02-07
Anticipated expiration: 2039-01-31
Also published as: CN110767197B

Abstract

The invention provides a display control method, which comprises the following steps: collecting color data of a target area in the second display area and an area of the first display area displaying a jth color in a preset color set under the condition that the gray scale displayed by the display panel is the ith gray scale in the preset gray scale set; determining difference information between the color coordinate of the jth color displayed in the target area and the color coordinate of the jth color displayed in the second display area according to the color data; determining the ith according to the difference information_jAnd adjusting and storing the information. According to the embodiment of the disclosure, when the display panel displays the images with the same color in the first display area and the second display area, the color displayed in the first display area and the second display area does not have color cast, so that the display panel is ensured to have a good display effect on the whole, and further a good watching effect of a user is ensured, so that the watching experience of the user is improved.

Description

Display control method, difference information determination device, and display device

Technical Field

The present invention relates to the field of display, and in particular, to a display control method, a difference information determination apparatus, and a display apparatus.

Background

With the development of display devices, the demand of users for viewing effects is increasing. An important factor influencing the viewing effect in a display device is the screen ratio, i.e. the percentage of the area of the effective display area on the front side of the display device, the higher the screen ratio, the better the viewing effect for the user, so the current development trend is to realize a full screen, i.e. the screen ratio is close to one hundred percent.

At present, for example, in display devices such as mobile phones and tablet computers, various elements such as a front-facing camera and an earphone distance sensor need to be configured, a groove needs to be formed in the front of the display device for arranging the elements, and the groove position cannot display a picture, for example, in the current bang screen or a mode of opening a hole in the screen, a bang area and a hole opening area cannot display a picture, which seriously limits the improvement of the screen occupation ratio in the display device, and leads to the failure of realizing a full screen.

Disclosure of Invention

The invention aims to provide a display control method, a difference information determination device and a display device.

In order to achieve the above object, the present invention provides a display control method, applied to a display panel, where the display panel includes a first display region and a second display region, and a light transmittance of the first display region is greater than a light transmittance of the second display region, the method including:

s1, collecting color data of a target area in the second display area and an area where the jth color in the preset color set is displayed in the first display area under the condition that the gray scale displayed by the display panel is the ith gray scale in the preset gray scale set; the number of the gray scales in the preset gray scale set is n, i belongs to n, n is more than or equal to 2 and less than 255, the number of the color types in the preset color set is m, j belongs to m, and m is more than or equal to 3;

s2, determining the difference information between the color coordinate of the jth color displayed in the target area and the color coordinate of the jth color displayed in the second display area according to the color data;

s3, determining and storing ij adjustment information according to the difference information; the ij adjustment information is used for adjusting the color coordinate of the jth color displayed in the first display area and the color coordinate of the jth color displayed in the second display area to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale;

and S4, circularly executing the steps S1 to S3 until the m × n pieces of adjustment information are acquired, and adjusting the color coordinates of the first display area and the second display area displaying the same color to be the same according to the m × n pieces of adjustment information.

Preferably, the target area is an area in the second display area, where a distance to a boundary of the first display area is less than or equal to a first preset distance.

Preferably, when the gray scale displayed by the display panel is the ith gray scale in the preset gray scale set, acquiring the color data of the target region in the second display region and the color data of the region, in which the jth color in the preset color set is displayed, in the first display region includes:

and under the condition that all pixel units in the display panel display the jth color and the displayed gray scale is the ith gray scale, acquiring color data of a target area in the second display area and any area in the first display area.

Preferably, the preset color set at least comprises:

red, green, blue;

preferably, the preset color set further includes:

cyan, violet, yellow, white.

Preferably, the gray scale range of the display panel is 0 to N, and the determining and storing the ijth adjustment information according to the difference information includes:

determining ijth adjusting information according to the difference information;

determining and storing N pieces of adjustment information according to the N pieces of adjustment information, wherein N is greater than N;

preferably, the determining N pieces of adjustment information according to the N pieces of adjustment information includes:

determining N pieces of adjustment information according to the N pieces of adjustment information by an interpolation method;

preferably, the determining the ij-th adjustment information according to the difference information includes:

determining ijth adjusting information associated with the difference information according to the association relationship between the prestored difference information and the adjusting information;

preferably, n is 6.

Preferably, the difference between two adjacent gray levels with lower gray levels among the n gray levels is smaller than the difference between two adjacent gray levels with higher gray levels.

Preferably, the method further comprises:

when the gray scale displayed by the display panel is the ith gray scale, adjusting the display signal of the jth color displayed by the first display area and the display signal of the jth color displayed by the second display area according to the ij adjustment information;

acquiring adjusted color data of j-th color displayed in the first display area and the target area after adjustment;

determining whether the distance between the color coordinate of the jth color displayed in the first display area and the color coordinate of the jth color displayed in the second display area is smaller than a second preset distance according to the adjusted color data;

if the distance is not smaller than a second preset distance, re-determining the adjustment information;

preferably, the re-determining the adjustment information includes:

the steps S1 to S3 described in the above embodiment are repeated;

preferably, the re-determining the adjustment information includes:

based on the n newly determined gray levels, the steps S1 to S3 described in the above embodiment are repeated, wherein the n newly determined gray levels at least include gray levels which are not included in one of the original n gray levels.

Preferably, the ij-th adjustment information is used to adjust the color coordinate of the jth color displayed in the first display area, or adjust the color coordinate of the jth color displayed in the second display area, or adjust the color coordinate of the jth color displayed in the first display area and the color coordinate of the jth color displayed in the second display area, when the gray scale displayed in the display panel is the ith gray scale.

Preferably, when collecting color data of different colors, the preset gray scale sets are the same; or when color data of different colors are collected, the preset gray scale sets are different;

preferably, the preset gray scale set includes different gray scales, or the preset gray scale set includes different numbers of gray scales.

Preferably, the method further comprises:

acquiring brightness data of the first display area and the second display area under the condition that the gray scale displayed by the display panel is the ith gray scale;

determining a brightness difference value of the first display area and the second display area under the condition that the displayed gray scale is the ith gray scale according to the brightness data;

determining and storing ith compensation information according to the brightness difference; the ith compensation information is used for adjusting the brightness displayed by the first display area and the brightness displayed by the second display area to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale.

The present disclosure also provides a difference information determining apparatus, including:

the data acquisition module is used for acquiring color data of a target area in the second display area and an area, in which the jth color in the preset color set is displayed in the first display area, under the condition that the gray scale displayed by the display panel is the ith gray scale in the preset gray scale set; the display panel comprises a first display area and a second display area, wherein the number of gray scales in the preset gray scale set is n, i belongs to n, n is more than or equal to 2 and less than 255, the number of color types in the preset color set is m, j belongs to m, m is more than or equal to 3, and the light transmittance of the first display area is greater than that of the second display area;

the difference determining module is used for determining difference information between the color coordinate of the jth color displayed in the target area and the color coordinate of the jth color displayed in the second display area according to the color data;

the adjustment determining module is used for determining and storing the ij adjustment information according to the difference information; the ij adjustment information is used for adjusting the color coordinate of the jth color displayed in the first display area and the color coordinate of the jth color displayed in the second display area to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale;

the data acquisition module, the difference determination module and the adjustment determination module are further configured to execute respective corresponding operations in a circulating manner until the m × n pieces of adjustment information are acquired.

The present disclosure also provides a display apparatus, including a processor configured to adjust color coordinates of the first display area and the second display area displaying the same color to be the same according to the adjustment information of any of the above embodiments;

preferably, the first display area is a transparent display area, the device area is located below the transparent display area, and a photosensitive device for collecting light through the transparent display area is arranged in the device area;

preferably, the light sensing device comprises a camera and/or a light sensor.

According to the embodiment of the disclosure, because the light transmittance of the first display area is greater than that of the second display area, and even tends to be transparent, when the first display area does not display an image, most of light rays of the first display area shot from the upper side of the display panel can penetrate through the first display area to enter the image acquisition equipment, so that the image acquisition equipment can acquire the image on the upper side of the display panel.

And first display area possesses the display function to guarantee that display panel's first display area and second display area can both show the image, and image acquisition equipment sets up under first display area, consequently need not hold image acquisition equipment at display panel fluting, in view of the above, display panel's screen account for than can be close and even reach one hundred per cent, realize full-face screen in the true sense.

In addition, according to the obtained i_jThe adjustment information may adjust a color coordinate of the jth color displayed in the first display region and a color coordinate of the jth color displayed in the second display region to be the same when the gray scale displayed in the display panel is the ith gray scale, so that when the display panel is in the first display region and the second display regionWhen the image with the same color is displayed, the color displayed in the first display area and the second display area can not have color cast, so that the display panel is ensured to have a good display effect on the whole, and further a good viewing effect of a user is ensured, so that the viewing experience of the user is improved.

Drawings

Fig. 1 is a schematic structural diagram of a display panel shown according to an embodiment of the present disclosure.

Fig. 2 is a schematic cross-sectional view of the display panel shown in fig. 1 taken along LL'.

Fig. 3 is a schematic flow chart diagram illustrating a display control method according to an embodiment of the present disclosure.

FIG. 4 is a schematic diagram illustrating a target area in accordance with an embodiment of the present disclosure.

Fig. 5 is a schematic flow chart diagram illustrating another display control method according to an embodiment of the present disclosure.

FIG. 6 is a block diagram illustrating an embodiment of determining the ith based on the difference information according to the present disclosure_jSchematic flow chart of adjusting and storing information.

Fig. 7 is a schematic flow chart diagram illustrating one type of re-determining adjustment information in accordance with an embodiment of the present disclosure.

Fig. 8 is a schematic flow chart diagram illustrating a method of determining compensation information for adjusting brightness according to an embodiment of the present disclosure.

Fig. 9 is a schematic block diagram illustrating a difference information determination apparatus according to an embodiment of the present disclosure.

Fig. 10 is a schematic block diagram illustrating an adjustment determination module in accordance with an embodiment of the present disclosure.

Fig. 11 is a schematic block diagram illustrating a brightness compensation module according to an embodiment of the present disclosure.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a schematic structural diagram of a display panel shown according to an embodiment of the present disclosure. Fig. 2 is a schematic cross-sectional view of the display panel shown in fig. 1 taken along LL'.

As shown in fig. 1 and 2, the display panel includes a first display area a and a second display area B, wherein the light transmittance of the first display area is greater than that of the second display area, and further, the first display area tends to be transparent when no image is displayed by setting the structure of the first display area.

While an image pickup device, a distance sensor, an ambient light sensor, and the like may be disposed below the first display area a, as shown in fig. 2, for example, the image pickup device may be disposed below the first display area a, and in the case where the display panel is applied to a mobile phone, for example, the image pickup device may be used as a front camera of the mobile phone.

It should be noted that the shape and position of the first display area are not limited to the shape and position shown in fig. 1, and the specific shape and position may be adjusted as needed. In order to improve the light transmittance of the first display region, in addition to adjusting the structure of the first display region in the above manner, the structure of the first display region may also be adjusted in other manners, for example, the density of sub-pixels in the first display region is reduced, so as to reduce the wiring in the first display region, and the disclosure is not limited to how to adjust the structure of the first display region to improve the light transmittance of the first display region.

Because the light transmittance of the first display area is greater than that of the second display area and can even tend to be transparent, when the first display area does not display images, most of light rays entering the first display area from the upper side of the display panel can penetrate through the first display area to enter the image acquisition equipment, and therefore the image acquisition equipment can acquire the images on the upper side of the display panel.

Because first display area possesses the display function to guarantee that display panel's first display area and second display area can both show the image, and image acquisition equipment sets up under first display area, consequently need not hold image acquisition equipment at the corresponding position fluting in display panel below, in view of the above, display panel's screen account for than can be close and even reach one hundred per cent, realize the full-face screen in the true sense.

As can be seen from the above description, in order to make the light transmittance of the first display region greater than that of the second display region, the structure of the first display region needs to be adjusted.

For example, the first display region may include a plurality of pixel units, each of the pixel units may include a plurality of sub-pixels, the sub-pixels may emit light through an organic light emitting diode, the organic light emitting diode includes a first electrode, a second electrode, a data line, and a scan line, and the first electrode, the second electrode, the data line, and the scan line may be made of a transparent conductive material in order to improve light transmittance of the first display region; the light transmittance of the transparent conductive material is greater than 90%, and the transparent conductive material comprises but is not limited to indium tin oxide, indium zinc oxide, silver-doped indium tin oxide or silver-doped indium zinc oxide. Of course, the adjustment of the structure of the first display region is not limited to the above-mentioned manner, and how to adjust the structure can be selected according to the need.

However, the structure of the first display area is adjusted to be different from that of the second display area, which causes the displayed color to be different when the first display area and the second display area display the same color image under the same gray scale, thereby affecting the overall display effect of the display panel.

Fig. 3 is a schematic flow chart diagram illustrating a display control method according to an embodiment of the present disclosure. As shown in fig. 3, the display control method may include the steps of:

in one embodiment, the target area may be any one of the second display areas, and specifically which one of the second display areas is used as the target area may be selected as needed.

In one embodiment, the m colors included in the preset color set may be set according to needs, and specifically, the type and number of the colors may be selected. For example, the preset color set includes 3 colors, and the 3 colors may be red, green, and blue; for example, the predetermined color set includes 7 colors, and the 7 colors may be red, green, blue, cyan, violet, yellow, and white.

In one embodiment, the n gray levels included in the preset gray level set may be set according to requirements, and the gray level value and the type of the gray level may be specifically selected. For example, the preset gray level set includes 2 gray levels, and the gray level value of the 2 gray levels may be 200, 100; for example, the predetermined gray level set includes 6 gray levels, and the gray level values of the 6 gray levels may be 255, 196, 128, 64, 32, and 16.

In one embodiment, signals for displaying the same color may be transmitted to the pixel cells in the target region and the pixel cells in the first display region, and it can be known from the above analysis that, since the structure of the first display region is different from that of the second display region, when the first display region and the second display region display the same color content at the same gray scale, the displayed color is different.

In this case, the image of the target region and the image of the first display region may be captured, for example, by means of visual inspection (CCD), and the captured images are color images.

The image of the analyzed target region may be used to determine that the target region displays color data of the jth color at the ith gray scale, and the image of the analyzed first display region may be used to determine that the first display region displays color data of the jth color at the ith gray scale, wherein the color data may be color coordinates.

in one embodiment, the disparity information can be determined by calculating the distance in each dimension of the color coordinates in a color space including, but not limited to, the XYZ color space, the LUV color space, the LAB color space, and the like.

S3, determining the ith according to the difference information_jAdjusting and storing the information; wherein, the ith_jThe adjustment information is used for adjusting the color coordinate of the jth color displayed by the first display area and the color coordinate of the jth color displayed by the second display area to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale;

in one embodiment, the adjustment information may be determined according to the difference information, wherein the adjustment information associated with the difference information may be determined according to an association relationship between the difference information and the adjustment information stored in advance.

For example, the adjustment information may be determined according to adjustment values respectively corresponding to differences of the difference information in each dimension in the color space, taking XYZ color space as an example, where the XYZ color space includes three dimensions of x, y, and z, and then the pre-stored association relationship between the difference information and the adjustment information may be that each difference in the x dimension is 0.01 unit, the adjustment value in the x dimension is 0.01 ampere current, each difference in the y dimension is 0.01 unit, the adjustment value in the y dimension is 0.02 ampere current, each difference in the z dimension is 0.01 unit, and the adjustment value in the z dimension is 0.01 ampere current. Accordingly, based on the difference value in each dimension in the difference information, the adjustment value corresponding to the difference value in each dimension can be determined, and then the adjustment values corresponding to the three dimensions are added (either directly or weighted) to obtain the adjustment information corresponding to the difference information.

It should be noted that the association relationship between the difference information and the adjustment information stored in advance in this embodiment is only an example, and the specific association relationship between the difference information and the adjustment information stored in advance may be determined by itself according to an actual situation, and the embodiment of the present disclosure is not limited to the association relationship.

Based on this, according to the obtained i_jAdjustment ofThe information can be that under the condition that the gray scale that display panel shows is ith gray scale, will the color coordinate that first display area shows jth colour with the color coordinate that second display area shows jth colour adjusts to the same to when display panel shows the image of the same colour in first display area and second display area, there can not exist the colour cast in the colour that first display area and second display area show, guarantee that display panel has good display effect on the whole, and then guarantee the good viewing effect of user, so that promote user and watch experience.

In one embodiment, only one ith step is obtained by performing steps S1 through S3 once_jThe adjustment information is determined for only one gray scale in the preset gray scale set and one color in the preset color set.

In order to determine the adjustment information for the m grayscales in the preset grayscale set and the m colors in the preset color set, steps S1 to S3 may be executed in a loop until the m × n adjustment information is obtained. And according to the obtained m × n pieces of adjustment information, the color coordinates of the target areas in the first display area and the second display area are adjusted, so that when the gray scale displayed by the display panel is any one of the n gray scales and the displayed color is any one of the m colors, the color coordinate of the jth color displayed by the first display area and the color coordinate of the jth color displayed by the second display area can be adjusted to be the same, and therefore, when the display panel displays multiple gray scales and multiple colors, the first display area and the second display area can be ensured to display the same color, and the displayed colors cannot be different.

Preferably, as shown in fig. 4, the target area C is an area in the second display area B, where a distance to a boundary of the first display area a is less than or equal to a first preset distance d.

In one embodiment, in order to drive the first display region and the second display region to emit light in the display panel, the sub-pixels in the first display region and the second display region may be connected by a wiring, and since the wiring is a conductor, the sectional area is small, there is a non-negligible resistance, and there is a voltage drop when a current is transmitted thereto.

For the sub-pixels in the second display region farther from the first display region, the voltages applied to the sub-pixels in the second display region are different from the voltages applied to the sub-pixels in the first display region when the same color is displayed at the same gray scale, and the difference also causes the difference in the displayed color when the same color is displayed.

However, the difference is caused by a voltage drop, and is not caused by the difference between the structure of the first display region and the structure of the second display region, and the embodiment of the present disclosure determines the adjustment information according to the difference between the display colors caused by the difference between the structure of the first display region and the structure of the second display region, and if the factor causing the difference also includes the voltage drop, the adjustment information determined by the embodiment of the present disclosure is inaccurate.

Based on this, the present disclosure may collect the target data of the color data in the second display region, which may be a region having a distance to the boundary of the first display region less than or equal to a first preset distance, where the first preset distance may be set as needed. Since the distance from the target region to the boundary of the first display region is small, the distance from the first display region to the target region of the wiring is also small, and the existing voltage drop is also small.

In this case, when the sub-pixels in the target area and the sub-pixels in the first display area display the same color, the voltages applied to the sub-pixels are substantially the same, so that the difference in display color due to the voltage drop can be ignored. When the adjustment information is determined based on the difference information, only the structure of the first display area is different from that of the second display area, so that the adjustment information can be accurately determined, and the difference information generated by the difference between the structure of the first display area and that of the second display area can be adjusted.

Fig. 5 is a schematic flow chart diagram illustrating another display control method according to an embodiment of the present disclosure. As shown in fig. 5, in the case that the gray scale displayed by the display panel is the ith gray scale in the preset gray scale set, acquiring the color data of the target region in the second display region and the color data of the region where the first display region displays the jth color in the preset color set includes:

and S11, collecting color data of a target area in the second display area and any area in the first display area under the condition that all pixel units in the display panel display the jth color and the displayed gray scale is the ith gray scale.

In an embodiment, when collecting color data of a j-th color, taking the j-th color as red as an example, if color data of a certain pixel unit displaying red is collected in the first display area, and if pixel units adjacent to the certain pixel unit display other colors, such as green, and the light emitted by the pixel unit has a certain angle of view and is not emitted perpendicularly to the light emitting surface of the display panel, a part of the green light emitted by the pixel unit displaying green will be irradiated in a space above the pixel unit displaying red, which results in that some color data of green will be also included in the color data of the collected pixel unit displaying red, and the collected color data will not be accurate.

According to the embodiment of the disclosure, under the condition that all the pixel units in the display panel display the jth color and the displayed gray scale is the ith gray scale, the color data of the target area in the second display area and any area in the first display area are acquired. In this case, since all the pixel units display the jth color, for example, all the pixel units display red, there is no situation that the green light irradiates the space above the pixel unit displaying red, and it is further ensured that the color data of the pixel unit displaying red does not include color data of other colors, and further it is ensured that the acquired color data is accurate, so as to accurately determine the difference information and the adjustment information in the following.

Optionally, the preset color set at least includes:

red, green, blue;

preferably, the preset color set further includes:

cyan, violet, yellow, white.

In one embodiment, since red, green, and blue, which are the three primary colors of color light, can be combined into all colors, collecting color data of the three colors and determining corresponding adjustment information, adjustment information can be determined for each color. For example, if a certain color is composed of a part of red and blue, the adjustment information of the color may be obtained by weighted summation of the adjustment information corresponding to red and the adjustment information corresponding to blue, where the weight of the adjustment information corresponding to red is the proportion of red that constitutes the color, and the weight of the adjustment information corresponding to blue is the proportion of blue that constitutes the color.

In one embodiment, the color data of cyan, violet, yellow and white can be further collected, and the corresponding adjustment information can be directly determined, so that the adjustment information corresponding to cyan, violet, yellow and white does not need to be determined according to the adjustment information corresponding to red, green and blue.

It should be noted that, besides red, blue and green, the preset color set may also include colors not limited to cyan, violet, yellow and white, and the preset color set may also be set to include other colors as needed.

FIG. 6 is a block diagram illustrating an embodiment of determining the ith based on the difference information according to the present disclosure_jSchematic flow chart of adjusting and storing information. As shown in FIG. 6, the gray scale range of the display panel is 0 to N, and the ith determination is performed according to the difference information_jAdjusting and storing information includes:

s31, determining the ith according to the difference information_jAdjusting the information;

s32, determining and storing N pieces of adjustment information according to the N pieces of adjustment information, wherein N is larger than N;

in one embodiment, since 2 ≦ N < 255, the gray scales that can be displayed by the display panel range from 0 to N, where N > N, for example, N equals 255, i.e., the determined adjustment information is only the adjustment information for N gray scales, and does not cover all the gray scales that can be displayed by the display panel.

In this embodiment, N pieces of adjustment information may be determined and stored according to the N pieces of adjustment information, so that the adjustment information covers adjustment information of all gray scales that can be displayed by the display panel, and when the display panel displays an image at any gray scale, colors displayed in the first display area and the second display area may be adjusted according to the adjustment information corresponding to the gray scale, so as to eliminate color cast when the first display area and the second display area display the same color.

and determining N pieces of adjusting information according to the N pieces of adjusting information by an interpolation method.

In one embodiment, N pieces of adjustment information may be determined from N pieces of the adjustment information by interpolation. It can be assumed that the gray scale values of the N gray scales and the adjustment information corresponding to the gray scales satisfy the first function, where the gray scale values are independent variables and the adjustment information is dependent variables. Since N pieces of adjustment information corresponding to the N gray scales can be determined, that is, the dependent variable corresponding to the N independent variables in the first function is known, the gray scale values of the N gray scales can be used as the independent variables, the adjustment information under the N gray scales is used as the dependent variable to construct a second function, the interval where the N gray scales are located of the second function is close to the first function, and then the adjustment information of the first function under the N gray scales can be estimated according to the second function.

For the adjustment information corresponding to the gray scale estimation between n gray scales, an interpolation method may be used, and for the adjustment information corresponding to the gray scale estimation not between n gray scales, an extrapolation method may be used, and specific interpolation method and extrapolation method may be selected as needed, for example, a linear difference method, a non-linear interpolation method, a single interpolation, a double interpolation, a triple interpolation, and the like, and the embodiments of the present disclosure are not limited thereto.

Preferably, the determining the ith adjustment information according to the difference information includes:

determining the ith associated with the difference information according to the association relationship between the prestored difference information and the adjustment information_jAdjusting the information;

in an embodiment, the adjustment information may be determined according to adjustment values respectively corresponding to differences of the difference information in each dimension in the color space, taking XYZ color space as an example, where the XYZ color space includes three dimensions of x, y, and z, and then the pre-stored association relationship between the difference information and the adjustment information may be that each difference in the x dimension is 0.01 unit, the adjustment value in the x dimension is 0.01 ampere current, each difference in the y dimension is 0.01 unit, the adjustment value in the y dimension is 0.02 ampere current, each difference in the z dimension is 0.01 unit, and the adjustment value in the z dimension is 0.01 ampere current. Accordingly, based on the difference value in each dimension in the difference information, the adjustment value corresponding to the difference value in each dimension can be determined, and then the adjustment values corresponding to the three dimensions are added (either directly or weighted) to obtain the adjustment information corresponding to the difference information.

Preferably, n is 6.

In one embodiment, the gray scale values of the 6 gray scales may be 255, 196, 128, 64, 32, 16, and the gray scale values selected accordingly may cover the gray scale values from 0 to 255 relatively comprehensively, so as to determine the adjustment information at each gray scale value from 0 to 255 by interpolation according to the adjustment information at the 6 gray scales.

In one embodiment, since the current display panel has a lower gray scale value, the regularity of color change is relatively poor when displaying an image, and the regularity of color change is relatively strong when displaying an image in a higher gray scale value. Therefore, the gray scales can be selected relatively sparsely in the interval with the higher gray scale value, and the gray scales are selected relatively densely in the interval with the lower gray scale value, so that when the adjustment information is determined through an interpolation method, more independent variables and dependent variables can be determined in the interval with the lower gray scale value, and more independent variables and dependent variables can better represent the relationship between the independent variables and the dependent variables in the first function.

Fig. 7 is a schematic flow chart diagram illustrating one type of re-determining adjustment information in accordance with an embodiment of the present disclosure. As shown in fig. 7, the display control method further includes:

s5, when the gray scale displayed by the display panel is the ith gray scale, according to the ith gray scale_jAdjusting information to adjust the display signal of the jth color displayed in the first display area and the display signal of the jth color displayed in the second display area;

s6, acquiring adjusted color data of j-th color displayed in the first display area and the target area after adjustment;

s7, determining whether the distance between the color coordinate of the jth color displayed in the first display area and the color coordinate of the jth color displayed in the second display area is smaller than a second preset distance according to the adjusted color data;

and S8, if the distance is not less than the second preset distance, re-determining the adjustment information.

In one embodiment, when the ith is obtained_jAfter adjusting the information, the information can be adjusted according to the ith_jAdjusting the display signal of the jth color displayed in the first display area and the display signal of the jth color displayed in the second display area by the adjusting information, and then acquiring the adjusted display signals of the jth color displayed in the first display area and the target areaAnd adjusting color data of the colors, and further determining whether the distance between the color coordinate of the jth color displayed in the first display area and the color coordinate of the jth color displayed in the second display area is smaller than a second preset distance according to the adjusted color data, namely determining whether the difference between the jth color displayed in the first display area and the jth color displayed in the second display area meets the requirement after the jth color displayed in the first display area and the jth color displayed in the second display area are adjusted.

If the distance is not less than the second preset distance, whether the difference between the j-th color displayed in the first display area and the j-th color displayed in the second display area meets the requirement or not can be determined, and the ith color is indicated to be originally determined_jThe adjustment information is not accurate enough to adjust the difference between the first display area and the second display area displaying the jth color to meet the requirement, and therefore, the adjustment information may be re-determined to obtain adjustment information capable of adjusting the difference between the first display area and the second display area displaying the jth color to meet the requirement.

Preferably, the re-determining the adjustment information includes:

looping through said steps S1-S3;

in one embodiment, since some external noise interference (e.g., electromagnetic wave interference, vibration interference, etc.) may exist in the process of determining the adjustment information, resulting in the determined adjustment information being inaccurate, the adjustment information may be re-determined by looping steps S1 through S3 to accurately determine the adjustment information without the external noise interference.

Preferably, the re-determining the adjustment information includes:

based on the n newly determined gray levels, the steps S1 to S3 are repeated, wherein the n newly determined gray levels at least include gray levels which are not included in the original n gray levels.

In one embodiment, the determined adjustment information may be different based on different N gray levels, for example, the distribution of the N gray levels is relatively concentrated, and the interpolation method to obtain the adjustment information at the N gray levels may not be accurate, thereby resulting in inaccurate determined adjustment information.

Therefore, if the adjustment information is not accurate, the N gray levels can be re-determined, and the re-determined N gray levels at least include gray levels that are not included in the original N gray levels, so that the re-determined N gray levels and the original N gray levels have different distributions, and the adjustment information of the N gray levels obtained by interpolation is different from the adjustment information of the N gray levels obtained by interpolation, so that new adjustment information can be obtained by repeating the steps S1 to S3. Therefore, the adjustment information which can adjust the difference of the j-th color displayed by the first display area and the second display area to meet the requirement is convenient to determine.

It should be noted that, the loop steps S1 to S3 in the above embodiment of re-determining the adjustment information may be a loop of steps S1 to S3, and then the adjustment information obtained by looping steps S1 to S3 once is used as the re-determined adjustment information; alternatively, the steps S1 to S3 may be repeated multiple times, and then multiple pieces of adjustment information may be obtained, in which case, one piece of adjustment information may be selected from the multiple pieces of adjustment information obtained as the newly determined adjustment information, or calculation may be performed based on the multiple pieces of adjustment information, and the calculation result may be used as the newly determined adjustment information, for example, the multiple pieces of adjustment information may be summed and averaged, or weighted and summed.

Preferably, the steps S1 to S3 may be looped once to re-determine the adjustment information. Accordingly, the adjustment information can be quickly redetermined, and it is not necessary to repeat steps S1 to S3 a plurality of times, which is advantageous in reducing the load.

Preferably, the ith_jThe adjustment information is used for adjusting the color coordinate of the jth color displayed in the first display area, or adjusting the color coordinate of the jth color displayed in the second display area, or adjusting the color coordinate of the jth color displayed in the first display area and the color coordinate of the jth color displayed in the second display area, when the gray scale displayed in the display panel is the ith gray scale.

In one embodiment, the first display area may be adjusted, the second display area may be adjusted, or both the first display area and the second display area may be adjusted simultaneously through the adjustment information.

For example, in general, when the first display region and the second display region display the same color, the light transmittance of the first display region is relatively high due to the adjustment of the internal structure, and the displayed color is relatively light, while the color displayed in the second display region is relatively dark, for example, when red is displayed, the color displayed in the first display region is relatively pink.

Then, the first display area is adjusted, so that the color coordinate when the first display area displays red is close to the color coordinate when the second display area displays red, for example, the red displayed by the first display area is redder, thereby ensuring that the red displayed by the first display area is the same as that displayed by the second display area, further ensuring that there is no color difference in the red displayed at different positions of the display panel, and the display panel has a good display effect.

The second display area can also be adjusted, so that the color coordinate when the second display area displays red is close to the color coordinate when the first display area displays red, for example, the red displayed by the second display area is similar to pink, thereby ensuring that the red displayed by the first display area and the red displayed by the second display area are the same, further ensuring that the red displayed by the display panel at different positions does not have color difference, and the display panel has good display effect.

The first display area and the second display area can be adjusted, so that the color coordinate when the first display area displays red is close to the color coordinate when the second display area displays red, and the color coordinate when the second display area displays red is close to the color coordinate when the first display area displays red, for example, the red displayed by the first display area is red, and the red displayed by the second display area is pink, so that the red displayed by the first display area and the red displayed by the second display area are the same, and further, the red displayed at different positions of the display panel is ensured to have no color difference, and the display panel has a good display effect.

In one embodiment, when collecting color data of different colors, the color data may be collected based on the same preset gray scale set or different preset gray scale sets, and may be specifically selected as needed. The different preset gray scale sets may refer to different gray scales contained in the preset gray scale sets, or different numbers of gray scales contained in the preset gray scale sets.

Fig. 8 is a schematic flow chart diagram illustrating a method of determining compensation information for adjusting brightness according to an embodiment of the present disclosure. As shown in fig. 8, the method further comprises:

step S1', when the gray scale displayed by the display panel is the ith gray scale, acquiring luminance data of the first display area and the second display area;

step S2', determining a luminance difference value between the first display area and the second display area when the displayed gray scale is the ith gray scale according to the luminance data;

step S3', determining the ith compensation information according to the brightness difference and storing the ith compensation information; the ith compensation information is used for adjusting the brightness displayed by the first display area and the brightness displayed by the second display area to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale.

In an embodiment, the structure of the first display region is adjusted to be different from the structure of the second display region, which causes the difference between the displayed brightness when the first display region and the second display region display images with the same brightness at the same gray scale, and affects the display effect of the display panel as a whole.

According to the embodiment of the disclosure, according to the obtained ith compensation information, the brightness displayed by the first display area and the brightness displayed by the second display area can be adjusted to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale, so that when the display panel displays images with the same brightness in the first display area and the second display area, the brightness difference does not exist in the brightness displayed by the first display area and the second display area, the display panel is ensured to have a good display effect on the whole, and a good watching effect of a user is further ensured, so that the watching experience of the user is improved.

Fig. 9 is a schematic block diagram illustrating a difference information determination apparatus according to an embodiment of the present disclosure. As shown in fig. 9, the difference information determination device includes:

the data acquisition module 1 is configured to acquire color data of a target area in the second display area and color data of an area where the first display area displays a jth color in a preset color set when a gray scale displayed by the display panel is an ith gray scale in the preset gray scale set; the display panel comprises a first display area and a second display area, wherein the number of gray scales in the preset gray scale set is n, i belongs to n, n is more than or equal to 2 and less than 255, the number of color types in the preset color set is m, j belongs to m, m is more than or equal to 3, and the light transmittance of the first display area is greater than that of the second display area;

the difference determining module 2 is configured to determine, according to the color data, difference information between a color coordinate of the jth color displayed in the target area and a color coordinate of the jth color displayed in the second display area;

an adjustment determining module 3 for determining the ith according to the difference information_jAdjusting and storing the information; wherein, the ith_jThe adjustment information is used for adjusting the color coordinate of the jth color displayed by the first display area and the color coordinate of the jth color displayed by the second display area to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale;

the data acquisition module 1, the difference determination module 2, and the adjustment determination module 3 are further configured to execute respective corresponding operations in a loop until the m × n pieces of adjustment information are acquired.

In an embodiment, after obtaining the adjustment information, the adjustment information may be transmitted to a display device, where the display device includes the display panel according to any of the above embodiments, and the display panel may adjust the color coordinates of the first display area and the second display area displaying the same color to be the same according to the adjustment information.

Because the light transmittance of the first display area is greater than that of the second display area and can even tend to be transparent, when the first display area does not display images, most of light rays of the first display area shot from the upper side of the display panel can penetrate through the first display area to enter the image acquisition equipment, and therefore the image acquisition equipment can acquire the images on the upper side of the display panel.

Because the first display area has the display function, the first display area and the second display area of the display panel can display images, and the image acquisition equipment is arranged below the first display area, so that the display panel does not need to be grooved to accommodate the image acquisition equipment, accordingly, the screen occupation ratio of the display panel can be close to or even reach one hundred percent, and the full-screen is realized in a real sense.

In one embodiment, the ith value is obtained according to_jThe adjustment information can be in the condition that the gray scale that display panel shows is ith gray scale, will the color coordinate that first display area shows jth colour with the color coordinate that second display area shows jth colour adjusts to the same to when display panel shows the image of the same colour in first display area and second display area, there can not be the colour cast in the colour that first display area and second display area show, guarantee that display panel has good display effect on the whole, and then guarantee the good viewing effect of user, so that promote user and watch experience.

Preferably, the data acquisition module is configured to acquire color data of a target area in the second display area and color data of any one area in the first display area when all pixel units in the display panel display a jth color and a displayed gray scale is an ith gray scale.

Fig. 10 is a schematic block diagram illustrating an adjustment determination module in accordance with an embodiment of the present disclosure. As shown in fig. 10, the gray scale range of the display panel is 0 to N, and the adjustment determining module 3 includes:

an information determining submodule 31 for determining the ith according to the difference information_jAdjusting the information;

the information expansion submodule 32 is configured to determine and store N pieces of adjustment information according to the N pieces of adjustment information, where N > N;

Preferably, the information expansion sub-module is specifically configured to determine N pieces of adjustment information according to the N pieces of adjustment information by an interpolation method;

Preferably, the information determination submodule is specifically configured to determine, according to an association relationship between prestored difference information and adjustment information, an ith associated with the difference information_jAdjusting the information;

Preferably, the display panel is further configured to, when the displayed gray scale is the ith gray scale, adjust, according to the adjustment information, a display signal that the first display area displays the jth color and a display signal that the second display area displays the jth color;

the data acquisition module is further used for acquiring adjusted color data of j-th color displayed in the first display area and the target area after adjustment;

the difference determining module is further configured to determine whether a distance between a color coordinate of the jth color displayed in the first display area and a color coordinate of the jth color displayed in the second display area is smaller than a second preset distance according to the adjusted color data;

if the distance is not smaller than a second preset distance, the data acquisition module, the difference determination module and the adjustment determination module are further used for re-determining adjustment information;

in one embodiment, when the ith is obtained_jAfter adjusting the information, the display panel can be controlled according to the secondi_jThe adjustment information adjusts the display signal of the jth color displayed in the first display area and the display signal of the jth color displayed in the second display area.

And then, acquiring adjusted color data of j colors displayed in the first display area and the target area after adjustment by the difference information determining device, and further determining whether the distance between the color coordinate of the j color displayed in the first display area and the color coordinate of the j color displayed in the second display area is smaller than a second preset distance according to the adjusted color data, namely determining whether the difference between the j colors displayed in the first display area and the second display area meets the requirement after the j colors are adjusted.

Preferably, the data collection module, the difference determination module, and the adjustment determination module may re-determine the adjustment information by performing the actions in the embodiment shown in fig. 9 one time in a loop.

In one embodiment, since some external noise interference (e.g., electromagnetic wave interference, vibration interference, etc.) may exist in the process of determining the adjustment information, resulting in the determined adjustment information being inaccurate, the adjustment information may be re-determined by the difference determination module, which may re-determine the adjustment information by performing the actions in the embodiment shown in fig. 9 one time in a loop, to accurately determine the adjustment information without the external noise interference.

Preferably, the data acquisition module, the difference determination module, and the adjustment determination module may perform the actions in the embodiment shown in fig. 9 one time in a loop to determine the adjustment information again based on n newly determined gray scales, where at least one of the n newly determined gray scales includes a gray scale that is not included in the n original gray scales.

Therefore, under the condition that the adjustment information is inaccurate, the N gray scales may be re-determined, where the re-determined N gray scales at least include a gray scale that is not included in the original N gray scales, and the re-determined N gray scales are distributed differently from the original N gray scales, so that the adjustment information under the N gray scales obtained by interpolation is also different from the adjustment information under the originally determined N gray scales, and therefore, the data acquisition module, the difference determination module, and the adjustment determination module may obtain new adjustment information by performing the operations in the embodiment shown in fig. 9 one time in a loop. Therefore, the adjustment information which can adjust the difference of the j-th color displayed by the first display area and the second display area to meet the requirement is convenient to determine.

Fig. 11 is a schematic block diagram illustrating a brightness compensation module according to an embodiment of the present disclosure. As shown in fig. 11, the disparity information determining apparatus further includes an illumination compensation module, and the illumination compensation module includes:

the brightness acquisition submodule 51 is configured to acquire brightness data of the first display area and the second display area when a gray scale displayed by the display panel is an ith gray scale;

a difference value determining submodule 52, configured to determine, according to the luminance data, a luminance difference value when a displayed gray scale of the first display area and the second display area is an ith gray scale;

a compensation determining sub-module 53, configured to determine and store the ith compensation information according to the brightness difference; the ith compensation information is used for adjusting the brightness displayed by the first display area and the brightness displayed by the second display area to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale.

In an embodiment, after the compensation information is obtained, the compensation information may be transmitted to a display device, the display device includes the display panel according to any of the above embodiments, and the display panel may adjust the brightness of the first display region and the brightness of the second display region when the first display region and the second display region display the same gray scale according to the compensation information.

An embodiment of the present disclosure further provides a display apparatus, including a processor configured to adjust color coordinates of the first display area and the second display area displaying the same color to be the same according to the adjustment information of any of the above embodiments;

in one embodiment, the display device may be a mobile phone, a tablet computer, a notebook computer, etc., and taking the mobile phone as an example, the device body may include a housing, a circuit board, a battery, a processor, etc.

The color coordinates of the first display area and the second display area when displaying the same color are adjusted to be the same according to the adjustment information, and the color coordinates of the first display area displaying the jth color and the color coordinates of the second display area displaying the jth color can be adjusted to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale, so that when the display panel displays the images with the same color in the first display area and the second display area, the colors displayed in the first display area and the second display area cannot have color cast, the display panel is guaranteed to have a good display effect on the whole, and a good viewing effect of a user is further guaranteed, so that the viewing experience of the user is improved.

preferably, the light sensing device comprises a camera and/or a light sensor.

Because first display area is transparent display area, when first display area did not show the image, the camera that the first display area's of following display panel top light most can pass first display area entering image acquisition equipment, during light sensor etc. for image acquisition equipment can gather the image of display panel top, and make the light sensor can receive the light of display panel top.

Because first display area possesses the display function to guarantee that display panel's first display area and second display area can both show the image, and image acquisition equipment, light sensor etc. period sets up under first display area, consequently needn't hold these devices at display panel fluting, in view of the above, display panel's screen account for than can be close and even reach one hundred per cent, realize the full face screen in the true sense.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A display control method is applied to a display panel, the display panel comprises a first display area and a second display area, wherein the light transmittance of the first display area is greater than that of the second display area, and the method comprises the following steps:

2. The method according to claim 1, wherein the target area is an area of the second display area having a distance to a boundary of the first display area less than or equal to a first preset distance.

3. The method according to claim 1, wherein the acquiring the color data of the target area in the second display area and the area of the first display area displaying the jth color in the preset color set when the gray scale displayed by the display panel is the ith gray scale in the preset color set comprises:

4. The method according to claim 1, wherein the preset set of colors comprises at least:

red, green, blue;

preferably, the preset color set further includes:

cyan, violet, yellow, white.

5. The method according to any one of claims 1 to 4, wherein the gray scale range of the display panel is 0 to N, and the i-th determination is performed according to the difference information_jAdjusting and storing information includes:

determining the ith according to the difference information_jAdjusting the information;

preferably, the determining the ith according to the difference information_jThe adjustment information includes:

preferably, n-6;

6. The method of any of claims 1 to 4, further comprising:

under the condition that the gray scale displayed by the display panel is the ith gray scale, according to the ith gray scale_jAdjusting information to adjust the display signal of the jth color displayed in the first display area and the display signal of the jth color displayed in the second display area;

preferably, the re-determining the adjustment information includes:

looping steps S1-S3 of claim 1;

preferably, the re-determining the adjustment information includes:

looping through steps S1-S3 of claim 1 based on the re-determined n gray levels, wherein at least one of the re-determined n gray levels includes a gray level not present in the original n gray levels.

7. The method according to any one of claims 1 to 4, wherein the ith_jThe adjustment information is used for adjusting the color coordinate of the jth color displayed in the first display area, or adjusting the color coordinate of the jth color displayed in the second display area, or adjusting the color coordinate of the jth color displayed in the first display area and the color coordinate of the jth color displayed in the second display area when the gray scale displayed in the display panel is the ith gray scale;

8. The method according to any one of claims 1 to 4, further comprising:

9. A difference information determination apparatus, characterized by comprising:

an adjustment determining module for determining the ith according to the difference information_jAdjusting and storing the information; wherein, the ith_jThe adjustment information is used for adjusting the color coordinate of the jth color displayed by the first display area and the color coordinate of the jth color displayed by the second display area to be the same under the condition that the gray scale displayed by the display panel is the ith gray scale;

10. A display device characterized by comprising a processor configured to adjust color coordinates when the first display region and the second display region display the same color to be the same according to the adjustment information of any one of claims 1 to 9;

preferably, the light sensing device comprises a camera and/or a light sensor.