CN109377966B - Display method, system and display device - Google Patents
Display method, system and display device Download PDFInfo
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- CN109377966B CN109377966B CN201811580186.7A CN201811580186A CN109377966B CN 109377966 B CN109377966 B CN 109377966B CN 201811580186 A CN201811580186 A CN 201811580186A CN 109377966 B CN109377966 B CN 109377966B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
Abstract
The application is applicable to the technical field of display, and provides a display method, a display system and a display device. In the embodiment of the application, one of two pixels which are arbitrarily adjacent in the row and/or column direction of the display panel is set as a high-brightness pixel, and the other pixel is set as a low-brightness pixel; the sum of the gamma values of the adjacent high-brightness pixels and the low-brightness pixels is equal to twice of the preset gamma value (namely gamma2.2), so that the brightness and the chromaticity of the display panel under a large viewing angle can be kept unchanged, the display effect of the display panel under the large viewing angle is effectively improved, and the scheme is simple and easy to implement and has no additional cost.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display method, a display system, and a display device.
Background
With the development of display technology, display devices such as liquid crystal panels and displays are becoming thinner, larger in screen size, lower in power consumption and lower in cost. The image quality is an important display index of the display panel, and the chromaticity visual angle is an important index for measuring the image quality of a wide-angle (VA type) panel. The contrast of the display panel, especially the wide-viewing angle display panel, is significantly reduced under a large viewing angle, resulting in a white display and a poor display effect. The visual angle compensation technology is utilized to carry out visual angle compensation on the display panel, so that the display effect of the display panel under a large visual angle can be effectively improved. The reasonable selection and design of the viewing angle compensation algorithm are crucial to improving the display effect of the display panel under a large viewing angle.
Disclosure of Invention
In view of this, embodiments of the present application provide a display method, a display system and a display device, which can effectively improve the display effect of a display panel under a large viewing angle.
A first aspect of an embodiment of the present application provides a display method applied to a display device, where the display device includes a display panel, and the display method includes:
setting one of two pixels which are arbitrarily adjacent in the row and/or column direction of the display panel as a high-brightness pixel and the other as a low-brightness pixel; the high brightness is the brightness when the brightness is higher than the normal display of the pixel, and the low brightness is the brightness when the brightness is lower than the normal display of the pixel;
making the sum of the gamma values of the adjacent high-brightness pixels and low-brightness pixels equal to twice the preset gamma value; wherein the preset gamma value is equal to 2.2.
A second aspect of an embodiment of the present application provides a display system applied to a display device, the display device including a display panel, the display system including:
the display panel comprises a first setting module, a second setting module and a display module, wherein the first setting module is used for setting one of two pixels which are arbitrarily adjacent in the row and/or column direction of the display panel as a high-brightness pixel and setting the other one of the two pixels as a low-brightness pixel; the high brightness is the brightness when the brightness is higher than the normal display of the pixel, and the low brightness is the brightness when the brightness is lower than the normal display of the pixel;
the second setting module is set to enable the sum of the gamma values of the adjacent high-brightness pixels and the low-brightness pixels to be equal to two times of the preset gamma value; wherein the preset gamma value is equal to 2.2.
A third aspect of an embodiment of the present application provides a display device, including:
a processor;
a source driver communicatively coupled to the processor;
a gate driver communicatively coupled to the processor;
a display panel in communication connection with the source driver; and
a memory communicatively connected to the processor, the memory including a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method when executing the computer program.
A fourth aspect of embodiments of the present application provides a computer-readable storage medium, which stores a computer program that, when executed by a processor, implements the steps of the above-described method.
In the embodiment of the application, one of two pixels which are arbitrarily adjacent in the row and/or column direction of the display panel is set as a high-brightness pixel, and the other pixel is set as a low-brightness pixel; the sum of the gamma values of the adjacent high-brightness pixels and the low-brightness pixels is equal to twice of the preset gamma value (namely gamma2.2), so that the brightness and the chromaticity of the display panel under a large viewing angle can be kept unchanged, the display effect of the display panel under the large viewing angle is effectively improved, and the scheme is simple and easy to implement and has no additional cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a display method according to an embodiment of the present application;
fig. 3 to 5 are schematic structural diagrams of a display panel according to another embodiment of the present application;
FIG. 6 is a schematic flow chart of a display method according to another embodiment of the present application;
FIG. 7 is a diagram of a frame of a display implemented in the spatial domain according to an embodiment of the present application;
FIG. 8 is a diagram illustrating a multi-frame display implemented in a time domain according to an embodiment of the present application;
FIG. 9 is a schematic structural diagram of a display system according to an embodiment of the present application;
FIG. 10 is a schematic diagram of a display system according to another embodiment of the present application;
fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the drawings described above, are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
As shown in fig. 1, an embodiment of the present application provides a display panel 1, which includes a pixel array, a sub-pixel of each pixel in the pixel array is divided into a main-pixel (main-pixel) and a sub-pixel (sub-pixel), an adjacent sub-pixel of any one of the main sub-pixels is the sub-pixel, and an adjacent sub-pixel of any one of the sub-pixels is the main sub-pixel.
In application, each pixel at least includes three sub-pixels of three colors of red (R), green (G) and blue (B), and may also include a fourth sub-pixel, the color of the fourth sub-pixel may be white or yellow, and any sub-pixel in each pixel may be set as a main sub-pixel or a sub-pixel according to actual needs.
Fig. 1 exemplarily shows a pixel array composed of 4 × 6 sub-pixels, wherein colors of sub-pixels of 1 st to 6 th columns are red, green, blue, red, green, and blue, respectively. In application, other arrangement modes can be set according to actual needs. It is sufficient to ensure that the primary and secondary attributes of adjacent sub-pixels are different.
In application, the display panel includes a pixel array composed of a plurality of rows and a plurality of columns of sub-pixels, the number of rows and the number of columns of the pixel array may be set as required, and in this embodiment, the size of the pixel array is not particularly limited.
In this embodiment, the main sub-pixel is a sub-pixel driven by a high voltage driving signal, and the sub-pixel is a sub-pixel driven by a low voltage driving signal.
In application, the high voltage is higher than the voltage required by the sub-pixel for normal display, and the low voltage is lower than the voltage required by the sub-pixel for normal display.
An embodiment of the present application provides a display method for driving the display panel in the embodiment corresponding to fig. 1, where the display method can be executed by a processor of a display device.
In Application, the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The processor may also be a Timing Controller (TCON).
As shown in fig. 2, the display method includes:
step S201, one of two pixels which are arbitrarily adjacent in the row and/or column direction of the display panel is set as a high-brightness pixel, and the other pixel is set as a low-brightness pixel; the high brightness is the brightness higher than the normal display of the pixel, and the low brightness is the brightness lower than the normal display of the pixel.
In application, one of two pixels arbitrarily adjacent in the row direction of the display panel may be set as a high-luminance pixel and the other may be set as a low-luminance pixel, one of two pixels arbitrarily adjacent in the column direction of the display panel may be set as a high-luminance pixel and the other may be set as a low-luminance pixel, and one of two pixels arbitrarily adjacent in the row direction and the column direction of the display panel may be set as a high-luminance pixel and the other may be set as a low-luminance pixel at the same time.
As shown in fig. 3, a case where one of two pixels arbitrarily adjacent in the display panel row direction is set as a high-luminance pixel and the other is set as a low-luminance pixel is exemplarily shown.
As shown in fig. 4, a case where one of two pixels arbitrarily adjacent in the column direction of the display panel is set as a high-luminance pixel and the other is set as a low-luminance pixel is exemplarily shown.
As shown in fig. 5, a case where one of two pixels arbitrarily adjacent in the row and column directions of the display panel is set as a high-luminance pixel and the other is set as a low-luminance pixel is exemplarily shown.
In fig. 3 to 5, a high pixel indicates a high-luminance pixel, and a low pixel indicates a low-luminance pixel.
In application, since each pixel includes at least three sub-pixels, the luminance of each pixel is determined by the driving signals corresponding to the three sub-pixels. When a pixel includes three sub-pixels, the brightness of the pixel is determined by the gray scales of the three sub-pixels in the red, green and blue color space.
In application, a Red, Green and Blue Color Space (RGB Color Space) is used, and the RGB Color Space is based on three basic colors of R (Red), G (Green) and B (Blue).
Step S202, making the sum of the gamma values of the adjacent high-brightness pixels and low-brightness pixels equal to two times of a preset gamma value; wherein the preset gamma value is equal to 2.2.
In application, the gamma value is used to reflect the relationship between the input value of the display panel and the brightness output by the display panel, and the input value of the display panel can be known according to the gamma value and the brightness expected to be reached by the display panel. The input value of the display panel at a certain brightness is the tristimulus value of the display panel displaying red, green and blue at the brightness.
In application, the tristimulus values are based on the CIE1931 XYZ Color Space (CIE XYZ Color Space) standard proposed by the International Commission on illumination (CIE). The CIE1931 XYZ color space takes the three colors red, green and blue as the three primary colors of the color space, and all other colors can be formed by mixing the three primary colors. The CIE1931 XYZ color space is often represented by the CIE1931Chromaticity Diagram (CIE1931Chromaticity Diagram), in which there are three XYZ parameters, where stimulus value Y represents luminance. Tristimulus values of the CIE1931 XYZ color space can be converted into tristimulus values of the RGB color space, the number of three primary colors (red, green, blue) matching the equivalent energy spectrum color, represented by the symbol R, G, B
In one embodiment, the expression of step S202 is as follows:
Gamma_H+Gamma_L＝2*Gamma2.2；
wherein, Gamma _ H is the Gamma value of the high brightness pixel, and Gamma _ L is the Gamma value of the low brightness pixel.
In one embodiment, step S202 includes:
step S2021, calculating a difference between the luminance of the high-luminance pixel and the maximum luminance of the display panel, and calculating a difference between the luminance of the low-luminance pixel and the minimum luminance of the display panel, among the adjacent high-luminance pixel and low-luminance pixel;
step S2022, setting the ratio of the luminances of the adjacent high-luminance pixel and low-luminance pixel according to the difference between the luminance of the high-luminance pixel and the maximum luminance of the display panel and the difference between the luminance of the low-luminance pixel and the minimum luminance of the display panel, so as to make the luminance of the display panel constant;
step S2023, calculating a difference between the chromaticity of the high-chromaticity pixel and the maximum chromaticity of the display panel, and calculating a difference between the chromaticity of the low-chromaticity pixel and the minimum chromaticity of the display panel, among the adjacent high-chromaticity pixel and low-chromaticity pixel;
step S2024, setting the ratio of the chromaticities of the adjacent high-chromaticity pixel and low-chromaticity pixel according to the difference between the chromaticity of the high-chromaticity pixel and the maximum chromaticity of the display panel and the difference between the chromaticity of the low-chromaticity pixel and the minimum chromaticity of the display panel, so as to make the chromaticity of the display panel constant.
In application, the difference between the brightness of the high-brightness pixel and the maximum brightness of the display panel is set to be A, the difference between the brightness of the low-brightness pixel and the minimum brightness of the display panel is set to be B, and then the proportion of the brightness of the adjacent high-brightness pixel and the low-brightness pixel is set according to A and B, so that the brightness of the display panel is constant, and the display without energy change in a wide viewing angle is ensured.
In application, the difference between the chromaticity of the high-chromaticity pixel and the maximum chromaticity of the display panel is set as C, the difference between the chromaticity of the low-chromaticity pixel and the minimum chromaticity of the display panel is set as D, and then the ratio of the chromaticities of the adjacent high-chromaticity pixel and the adjacent low-chromaticity pixel is set according to C and D, so that the chromaticity of the display panel is constant, and the display without energy change of a wide viewing angle is ensured.
In this application, the brightness of the display panel at a wide viewing angle can be made constant through the steps S2021 and S2022, so that a wide viewing angle display effect without brightness difference is achieved without changing the aperture ratio and the transmittance of the display panel; the chromaticity of the display panel at a wide viewing angle can be made constant by the steps S2023 and S2024, thereby achieving a wide viewing angle display effect without chromaticity difference without changing the aperture ratio and transmittance of the display panel.
The present embodiment is configured by setting one of two pixels arbitrarily adjacent in the row and/or column direction of the display panel as a high-luminance pixel and the other as a low-luminance pixel; the sum of the gamma values of the adjacent high-brightness pixels and the low-brightness pixels is equal to twice of the preset gamma value (namely gamma2.2), so that the brightness and the chromaticity of the display panel under a large viewing angle can be kept unchanged, the display effect of the display panel under the large viewing angle is effectively improved, and the scheme is simple and easy to implement and has no additional cost.
As shown in fig. 6, in another embodiment of the present application, step S201 in the embodiment corresponding to fig. 2 includes:
step S601, performing color gain processing on the display data of the display panel, and enhancing the color gain of the sub-display data corresponding to the first specific pixel in the display data.
In application, color gain (color gain) processing refers to adjusting the gain of a parameter related to the color of a pixel in display data, thereby adjusting the color of a display screen.
In an application, the first specific pixel is a pixel in a display screen which needs to be emphasized for color adjustment. For example, when the display screen displays a landscape, the first specific pixel may be a pixel for displaying a scene image; when the display screen displays a person, the first specific pixel may be a pixel for displaying a face image.
In one embodiment, the first specific pixel includes a pixel for displaying a face image.
In one embodiment, before step S601, the method includes:
detecting whether the display data comprises sub-display data corresponding to the face image; if yes, the process proceeds to step S601.
In application, whether the sub-display data corresponding to the face image is included in the display data can be detected through a face recognition algorithm.
In one embodiment, step S601 includes:
step S6012, converting display data of the display panel from a red, green and blue color space to a hue saturation brightness color model;
step S6013, performing hue gain processing on the display data of the hue saturation value color model, and enhancing a hue gain of sub-display data corresponding to a first specific pixel in the display data;
step S6013, perform saturation gain processing on the display data of the hue saturation value color model, and enhance the saturation gain of the sub-display data corresponding to the first specific pixel in the display data.
In application, the Hue Saturation Value color model is an HSV (Hue, Saturation, Value) color model, and parameters of colors in the HSV color model are respectively: hue (H), saturation (S), lightness (V). Wherein lightness is brightness. Hue gain processing, namely, performing gain processing on hues in the HSV color model, and if the hue gain is to be enhanced, the value of the hue needs to be increased. And saturation gain processing, namely performing gain processing on the saturation in the HSV color model, wherein the saturation gain needs to be increased if the saturation gain is to be increased.
In one embodiment, the expression of step S6012 is as follows:
max＝max(R,G,B)；
min＝min(R,G,B)；
if R＝max,H＝(G-B)/(max-min)；
if G＝max,H＝2+(B-R)/(max-min)；
if B＝max,H＝4+(R-G)/(max-min)；
H＝H*60，if H<0,H＝H+360
V＝max(R,G,B)，S＝(max-min)/max；
r, G, B respectively represents the gray scale of the parameters corresponding to the three colors of red, green and blue in the red, green and blue color space, H, S, V respectively represents the parameters of hue, saturation and lightness of the color in the hue saturation lightness color model.
Step S602, performing high-frequency gain processing on the display data, and adjusting the brightness of sub-display data corresponding to a high-frequency pixel in the display data.
In application, the high frequency gain (high frequency gain) process is to control the brightness of the high frequency pixels in the display screen, and the high frequency gain can be adjusted to increase or decrease the brightness of the high frequency pixels according to actual needs.
In application, after the sub-display data corresponding to each sub-pixel is processed by the processor and the source driver of the display device, the driving signal for driving the sub-pixel is output, so that the driving signal with the luminance change frequency of the pixel being greater than the preset frequency is a high-frequency signal, the driving signal with the luminance change frequency of the pixel being less than or equal to the preset frequency is a low-frequency signal, and the low-frequency signal and the high-frequency signal are also called as a low-frequency component and a high-frequency component, respectively. A high-frequency component refers to an area where the brightness changes drastically in the display screen, and is generally an edge (outline) of the display screen; the low-frequency component refers to a region of the display screen where the luminance transition is gentle, and is usually a non-edge region of the display screen. The human eye is more sensitive to high frequency signals in the display. The more high frequency signals in the display, the more detailed features.
In application, the principle of judging whether a pixel is a high-frequency pixel is as follows:
judging whether the change frequency of the brightness of the pixel is larger than the preset frequency or not after the sub-display data corresponding to the pixel is converted into the driving signal;
if yes, the pixel is judged to be a high-frequency pixel;
if not, the pixel is judged to be a low-frequency pixel.
In application, since each pixel includes at least three sub-pixels, the brightness of each pixel is determined by the driving signals corresponding to the three sub-pixels.
In application, the preset frequency can be set according to actual needs.
Step S603, performing isolated point gain processing on the display data, and adjusting the brightness of sub-display data corresponding to a second specific pixel in the display data.
In application, the second characteristic pixels are pixels of discrete image areas in the display screen. The isolated point gain (isolated point gain) process is to control the brightness of the discrete image area in the display screen, and the brightness of the discrete image area may be increased or decreased by adjusting the isolated point gain according to actual needs. The discrete image area is generally an area where a point, a line, an object, or a graphic independently present in the display screen is located. For example, an object having a size smaller than a preset size in the display screen is displayed.
In application, the preset size can be set according to actual needs, and the preset size is larger than 0 and smaller than the maximum size of the display picture.
In one embodiment, the second characteristic pixels comprise pixels for displaying images of small objects; wherein, the small object is an object with the size smaller than the preset size.
In one embodiment, before step S603, the method includes:
detecting whether the display data comprises sub-display data corresponding to the small object image; if yes, the process proceeds to step S603.
In application, whether the sub-display data corresponding to the small object image is included in the display data can be detected through a connected domain algorithm or a contour detection algorithm.
Step S604, performing gamma correction processing on the display data to perform white balance adjustment on the display data.
In application, the gamma correction process adjusts the white balance of the display data by using a gamma curve, and the gamma curve reflects the corresponding relation between the gamma value and the gray scale. The brightness level may be represented by gray scale. The processor and the source driver of the display device process and convert the display data to obtain the driving signals, and the tristimulus values of red, green and blue are related to the voltage values of the driving signals input by the pixels of the corresponding colors.
In one embodiment, step S604 includes:
step S6041, correcting sub-display data corresponding to a main sub-pixel in the display data through a first gamma curve so as to perform white balance adjustment on the sub-display data corresponding to the main sub-pixel; the main sub-pixel is a sub-pixel driven by a high-voltage driving signal;
step S6042, correcting the sub-display data corresponding to the sub-pixel in the display data through a second gamma curve so as to perform white balance adjustment on the sub-display data corresponding to the sub-pixel; the sub-pixels are driven by low-voltage driving signals.
In application, the first gamma curve and the second gamma curve may be implemented by a look-up table (LUT), or may be implemented by other data tables or Random Access Memory (RAM) storage media having input data with the same function as the LUT, that is, input data corresponding to the input data is searched for.
In application, the first gamma curve reflects the corresponding relation between the gray scale and the gamma value of the main sub-pixel, the corresponding gamma value of the main sub-pixel under each gray scale can be obtained according to the first gamma curve, and the corresponding tristimulus value of the main sub-pixel under each gray scale can be obtained through the gamma value; the second gamma curve reflects the corresponding relationship between the gray scale and the gamma value of the secondary sub-pixel, the gamma value corresponding to each gray scale of the secondary sub-pixel can be obtained according to the second gamma curve, and the tristimulus value corresponding to each gray scale of the secondary sub-pixel can be obtained through the gamma value.
Fig. 7 exemplarily shows a schematic diagram of a one-frame display screen implemented on a spatial domain after processing the display data based on steps S6041 and S6042.
Fig. 8 exemplarily shows a schematic diagram of a multi-frame display screen realized in a time domain after processing the display data based on steps S6041 and S6042. Fig. 8 exemplarily shows a display screen in which four frames of Frame2n +1 to Frame2n +4 continuously change. Wherein n is not less than 0 and n is an integer.
In fig. 7 and 8, H denotes a main sub-pixel, L denotes a sub-pixel, and + denotes positive polarity and-denotes negative polarity.
In this embodiment, by performing color gain processing, high-frequency gain processing, isolated point gain processing, and gamma correction processing on the display data of the display panel, the aperture ratio of the display panel can be greatly increased, the fineness of the display panel is greatly improved, the display image is prevented from exhibiting granular sensation, and the effect is enhanced along with the improvement of the resolution of the display panel, and the display panel is particularly suitable for large-size and wide-viewing-angle display panels.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
An embodiment of the present application provides a display system, which may be a software program system in a processor of a display device, for performing the method steps in the embodiment corresponding to fig. 2.
As shown in fig. 9, the display system 9 includes:
a first setting module 901 configured to set one of two pixels arbitrarily adjacent in a row and/or column direction of the display panel as a high-luminance pixel and the other as a low-luminance pixel; the high brightness is the brightness when the brightness is higher than the normal display of the pixel, and the low brightness is the brightness when the brightness is lower than the normal display of the pixel; a second setting module 902, configured to make the sum of the gamma values of the adjacent high-brightness pixels and low-brightness pixels equal to two times of the preset gamma value; wherein the preset gamma value is equal to 2.2.
In application, each module in the display system is a software program module, and can also be realized by an independent processor, or be integrated together into the same processor.
The present embodiment is configured by setting one of two pixels arbitrarily adjacent in the row and/or column direction of the display panel as a high-luminance pixel and the other as a low-luminance pixel; the sum of the gamma values of the adjacent high-brightness pixels and the low-brightness pixels is equal to twice of the preset gamma value (namely gamma2.2), so that the brightness and the chromaticity of the display panel under a large viewing angle can be kept unchanged, the display effect of the display panel under the large viewing angle is effectively improved, and the scheme is simple and easy to implement and has no additional cost.
In another embodiment of the present application, as shown in fig. 10, the display system 9 of fig. 9 further includes structure for performing the method steps of the corresponding embodiment of fig. 6, further comprising:
a color gain module 903 configured to perform color gain processing on display data of the display panel to enhance color gain of sub-display data corresponding to a first specific pixel in the display data;
a high-frequency gain module 904 configured to perform high-frequency gain processing on the display data and adjust brightness of sub-display data corresponding to high-frequency pixels in the display data;
an isolated point gain module 905 configured to perform isolated point gain processing on the display data, and adjust brightness of sub-display data corresponding to a second specific pixel in the display data;
a gamma correction module 906 configured to perform gamma correction processing on the display data to perform white balance adjustment on the display data.
In one embodiment, the display system 9 further comprises:
the face detection module is used for detecting whether the display data comprises sub-display data corresponding to the face image; if yes, go to color gain module 903.
In one embodiment, the display system 9 further comprises:
the small object detection module is used for detecting whether the display data comprises sub-display data corresponding to the small object image; if so, the isolated point gain module 905 is entered.
In this embodiment, by performing color gain processing, high-frequency gain processing, isolated point gain processing, and gamma correction processing on the display data of the display panel, the aperture ratio of the display panel can be greatly increased, the fineness of the display panel is greatly improved, the display image is prevented from exhibiting granular sensation, and the effect is enhanced along with the improvement of the resolution of the display panel, and the display panel is particularly suitable for large-size and wide-viewing-angle display panels.
As shown in fig. 11, an embodiment of the present application provides a display device 11, including:
a processor 111;
a source driver 112 communicatively coupled to the processor 111;
a gate driver 113 communicatively coupled to the processor 111;
a display panel 114 communicatively coupled to the source driver 112; and
a memory 115 communicatively coupled to the processor 111, the memory 115 comprising a computer program 1151, such as a display program, stored in the memory and executable on the processor. The processor 111, when executing the computer program, implements the steps of the above-described respective method embodiments, such as steps S201 and S202 shown in fig. 2. Alternatively, the processor 111, when executing the computer program 1151, implements the functions of the modules in the above device embodiments, for example, the functions of the modules 901 and 902 shown in fig. 9.
Illustratively, the computer program 1151 may be partitioned into one or more modules that are stored in the memory 115 and executed by the processor 111 to accomplish the present application. The one or more modules may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program 1151 on the display device 11. For example, the computer program 1151 may be divided into a first setting module and a second setting module, and each module has the following specific functions:
the display panel comprises a first setting module, a second setting module and a display module, wherein the first setting module is used for setting one of two pixels which are arbitrarily adjacent in the row and/or column direction of the display panel as a high-brightness pixel and setting the other one of the two pixels as a low-brightness pixel; the high brightness is the brightness when the brightness is higher than the normal display of the pixel, and the low brightness is the brightness when the brightness is lower than the normal display of the pixel; the second setting module is set to enable the sum of the gamma values of the adjacent high-brightness pixels and the low-brightness pixels to be equal to two times of the preset gamma value; wherein the preset gamma value is equal to 2.2.
The display device may include, but is not limited to, a processor, a source driver, a gate driver, a display panel, a memory. The Display device 11 may be any type of Display device, such as a Liquid Crystal Display device based on LCD (Liquid Crystal Display) technology, an Organic electroluminescent Display device based on OLED (Organic electroluminescent Display) technology, a Quantum Dot Light emitting diode Display device based on QLED (Quantum Dot Light emitting diodes) technology, a curved Display device, or the like. It will be understood by those skilled in the art that fig. 11 is merely an example of the display apparatus 11, and does not constitute a limitation of the display apparatus 11, and may include more or less components than those shown, or combine some components, or different components, for example, the display apparatus may further include an input-output device, a network access device, a bus, etc.
The Processor 111 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The processor may also be a Timing Controller (TCON).
The storage 115 may be an internal storage unit of the display device 11, such as a hard disk or a memory of the display device 11. The memory 115 may also be an external storage device of the display apparatus 11, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the display apparatus 11. Further, the memory 115 may also include both an internal storage unit and an external storage device of the display apparatus 11. The memory 115 is used to store the computer program and other programs and data required by the display device. The memory 115 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated module, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (9)
1. A display method is applied to a display device, the display device comprises a display panel, and the display method comprises the following steps:
setting one of two pixels which are arbitrarily adjacent in the row and/or column direction of the display panel as a high-brightness pixel and the other as a low-brightness pixel; the high brightness is the brightness when the brightness is higher than the normal display of the pixel, and the low brightness is the brightness when the brightness is lower than the normal display of the pixel;
making the sum of the gamma values of the adjacent high-brightness pixels and low-brightness pixels equal to twice the preset gamma value; wherein the preset gamma value is equal to 2.2;
calculating a difference between the luminance of the high luminance pixel and the maximum luminance of the display panel and a difference between the luminance of the low luminance pixel and the minimum luminance of the display panel among the adjacent high luminance pixel and low luminance pixel;
setting the ratio of the brightness of the adjacent high-brightness pixel and low-brightness pixel according to the difference between the brightness of the high-brightness pixel and the maximum brightness of the display panel and the difference between the brightness of the low-brightness pixel and the minimum brightness of the display panel, so as to make the brightness of the display panel constant;
calculating a difference between the chromaticity of the high-chromaticity pixel and the maximum chromaticity of the display panel and a difference between the chromaticity of the low-chromaticity pixel and the minimum chromaticity of the display panel among the adjacent high-chromaticity pixel and low-chromaticity pixel;
and setting the ratio of the chromaticities of the adjacent high-chromaticity pixels and low-chromaticity pixels according to the difference between the chromaticity of the high-chromaticity pixel and the maximum chromaticity of the display panel and the difference between the chromaticity of the low-chromaticity pixel and the minimum chromaticity of the display panel, so that the chromaticity of the display panel is constant.
2. The display method according to claim 1, wherein before setting one of two pixels arbitrarily adjacent in a row and/or column direction of the display panel as a high-luminance pixel and the other as a low-luminance pixel, comprising:
carrying out color gain processing on display data of a display panel, and enhancing the color gain of sub-display data corresponding to a first specific pixel in the display data; the first specific pixel is a pixel needing to be subjected to emphasis color adjustment in a display picture of the display panel;
performing high-frequency gain processing on the display data, and adjusting the brightness of sub-display data corresponding to high-frequency pixels in the display data;
carrying out isolated point gain processing on the display data, and adjusting the brightness of sub-display data corresponding to a second specific pixel in the display data; wherein the second specific pixel is a pixel of a discrete image area in a display screen of the display panel;
and carrying out gamma correction processing on the display data so as to carry out white balance adjustment on the display data.
3. The method as claimed in claim 2, wherein the performing color gain processing on the display data of the display panel to enhance the color gain of the sub-display data corresponding to the first specific pixel in the display data comprises:
converting display data of the display panel from a red, green and blue color space to a hue saturation lightness color model;
performing hue gain processing on the display data of the hue saturation lightness color model, and enhancing the hue gain of the sub-display data corresponding to the first specific pixel in the display data;
and performing saturation gain processing on the display data of the hue saturation lightness color model to enhance the saturation gain of the sub-display data corresponding to the first specific pixel in the display data.
4. The display method according to claim 3, wherein the expression for converting the display data of the display panel from the red green blue color space to the hue saturation lightness color model is as follows:
max＝max(R,G,B)；
min＝min(R,G,B)；
if R＝max,H＝(G-B)/(max-min)；
if G＝max,H＝2+(B-R)/(max-min)；
if B＝max,H＝4+(R-G)/(max-min)；
H＝H*60，if H<0,H＝H+360
V＝max(R,G,B)，S＝(max-min)/max；
r, G, B respectively represents the gray scale of the parameters corresponding to the three colors of red, green and blue in the red, green and blue color space, H, S, V respectively represents the parameters of hue, saturation and lightness of the color in the hue saturation lightness color model.
5. The display method according to claim 2, wherein performing gamma correction processing on the display data to perform white balance adjustment on the display data includes:
correcting sub-display data corresponding to a main sub-pixel in the display data through a first gamma curve so as to perform white balance adjustment on the sub-display data corresponding to the main sub-pixel; the main sub-pixel is a sub-pixel driven by a high-voltage driving signal;
correcting the sub-display data corresponding to the sub-pixels in the display data through a second gamma curve so as to adjust the white balance of the sub-display data corresponding to the sub-pixels; the sub-pixels are driven by low-voltage driving signals.
6. A display method according to claim 2 or 3, wherein the first specific pixel includes a pixel for displaying a face image;
the second specific pixel comprises a pixel for displaying a small object image; wherein, the small object is an object with the size smaller than the preset size.
7. The method as claimed in claim 6, wherein the color gain processing is performed on the display data of the display panel before the color gain of the sub-display data corresponding to the first specific pixel in the display data is enhanced, comprising:
detecting whether the display data comprises sub-display data corresponding to the face image; if so, performing color gain processing on the display data of the display panel, and enhancing the color gain of the sub-display data corresponding to the first specific pixel in the display data;
before the isolated point gain processing is carried out on the display data and the brightness of the sub-display data corresponding to the second specific pixel in the display data is adjusted, the method comprises the following steps:
detecting whether the display data comprises sub-display data corresponding to the small object image; and if so, performing isolated point gain processing on the display data, and adjusting the brightness of the sub-display data corresponding to the second specific pixel in the display data.
8. A display system applied to a display device including a display panel, the display system comprising:
the display panel comprises a first setting module, a second setting module and a display module, wherein the first setting module is used for setting one of two pixels which are arbitrarily adjacent in the row and/or column direction of the display panel as a high-brightness pixel and setting the other one of the two pixels as a low-brightness pixel; the high brightness is the brightness when the brightness is higher than the normal display of the pixel, and the low brightness is the brightness when the brightness is lower than the normal display of the pixel;
the second setting module is set to enable the sum of the gamma values of the adjacent high-brightness pixels and the low-brightness pixels to be equal to two times of the preset gamma value; wherein the preset gamma value is equal to 2.2;
the second setting module is specifically configured to:
calculating a difference between the luminance of the high luminance pixel and the maximum luminance of the display panel and a difference between the luminance of the low luminance pixel and the minimum luminance of the display panel among the adjacent high luminance pixel and low luminance pixel;
setting the ratio of the brightness of the adjacent high-brightness pixel and low-brightness pixel according to the difference between the brightness of the high-brightness pixel and the maximum brightness of the display panel and the difference between the brightness of the low-brightness pixel and the minimum brightness of the display panel, so as to make the brightness of the display panel constant;
calculating a difference between the chromaticity of the high-chromaticity pixel and the maximum chromaticity of the display panel and a difference between the chromaticity of the low-chromaticity pixel and the minimum chromaticity of the display panel among the adjacent high-chromaticity pixel and low-chromaticity pixel;
and setting the ratio of the chromaticities of the adjacent high-chromaticity pixels and low-chromaticity pixels according to the difference between the chromaticity of the high-chromaticity pixel and the maximum chromaticity of the display panel and the difference between the chromaticity of the low-chromaticity pixel and the minimum chromaticity of the display panel, so that the chromaticity of the display panel is constant.
9. A display device, comprising:
a processor;
a source driver communicatively coupled to the processor;
a gate driver communicatively coupled to the processor;
a display panel in communication connection with the source driver; and
a memory communicatively connected to the processor, the memory including a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method as claimed in any one of claims 1 to 7 when executing the computer program.
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