CN109461419B - Display data processing method and system and display device - Google Patents
Display data processing method and system and display device Download PDFInfo
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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
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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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
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- G09G2340/00—Aspects of display data processing
Abstract
The application is applicable to the technical field of display, and provides a display data processing method, a display data processing system and a display device. In the embodiment of the application, the sub-display data corresponding to each row of pixels of the display panel is divided into a plurality of sub-display data groups, so that each sub-display data group corresponds to a preset number of pixels; when the preset number of pixels of the sub-display data group pair are all high-frequency pixels, directly outputting the sub-display data group; when the pixels with the preset number of the sub-display data groups have low-frequency pixels, the average value of the sub-display data corresponding to all the sub-pixels in the pixels with the preset number is output, so that the brightness change frequency of the pixels with the preset number corresponding to each sub-display data group can be kept consistent, the display picture is prevented from being locally inverted, the display effect of the display panel under a large visual angle is effectively improved, the scheme is simple and easy to implement, and no extra cost exists.
Description
Technical Field
The present application belongs to the field of display technologies, and in particular, to a display data processing method, system and 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 method, a system, and a display device for processing display data, which can solve the problem of local inversion of a display screen and 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 data processing method, including:
dividing sub-display data corresponding to each row of pixels of the display panel into a plurality of sub-display data groups; each sub-display data group corresponds to a preset number of pixels;
judging whether the preset number of pixels corresponding to the sub-display data group are high-frequency pixels or not; the high-frequency pixels are pixels with the brightness change frequency larger than the preset frequency;
if the preset number of pixels corresponding to the sub-display data group are all high-frequency pixels, directly outputting the sub-display data group;
if the preset number of pixels corresponding to the sub-display data group have low-frequency pixels, outputting the average value of the sub-display data corresponding to all the sub-pixels in the preset number of pixels; the low-frequency pixels are pixels with the brightness change frequency less than or equal to the preset frequency.
A second aspect of an embodiment of the present application provides a display data processing system, including:
a dividing module configured to divide sub-display data corresponding to each row of pixels of the display panel into a plurality of sub-display data groups; each sub-display data group corresponds to a preset number of pixels;
the judging module is used for judging whether the pixels with the preset number corresponding to the sub-display data group are high-frequency pixels or not; the high-frequency pixels are pixels with the brightness change frequency larger than the preset frequency;
the first output module is set to directly output the sub-display data group if the preset number of pixels corresponding to the sub-display data group are all high-frequency pixels;
a second output module configured to output an average value of sub-display data corresponding to all sub-pixels in a preset number of pixels if there is a low-frequency pixel in the preset number of pixels corresponding to the sub-display data group; the low-frequency pixels are pixels with the brightness change frequency less than or equal to the preset frequency.
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, the sub-display data corresponding to each row of pixels of the display panel is divided into a plurality of sub-display data groups, so that each sub-display data group corresponds to a preset number of pixels; when the preset number of pixels of the sub-display data group pair are all high-frequency pixels, directly outputting the sub-display data group; when the pixels with the preset number of the sub-display data groups have low-frequency pixels, the average value of the sub-display data corresponding to all the sub-pixels in the pixels with the preset number is output, so that the brightness change frequency of the pixels with the preset number corresponding to each sub-display data group can be kept consistent, the display picture is prevented from being locally inverted, the display effect of the display panel under a large visual angle is effectively improved, the scheme is simple and easy to implement, and no extra cost exists.
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 data processing method according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a grouping principle of sub-display data according to an embodiment of the present application
FIG. 4 is a schematic flow chart illustrating a method for processing display data according to another embodiment of the present disclosure;
FIG. 5 is a diagram of a frame of a display implemented in the spatial domain according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a multi-frame display implemented in a time domain according to an embodiment of the present application;
FIG. 7 is a block diagram of a display data processing system according to an embodiment of the present application;
FIG. 8 is a block diagram of a display data processing system according to another embodiment of the present application;
fig. 9 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 data processing method, which is used for driving the display panel in the embodiment corresponding to fig. 1, and the display data processing 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 data processing method includes:
step S201, dividing sub-display data corresponding to each row of pixels of the display panel into a plurality of sub-display data groups; wherein, each sub-display data group corresponds to a preset number of pixels.
In application, each frame of picture displayed by the display panel corresponds to one frame of display data, the display data is image data, the display data comprises a plurality of sub-display data equal to the number of sub-pixels of the display panel, and one sub-display data corresponds to one sub-pixel.
In application, the preset number may be set according to actual needs, and the preset number is greater than 0 and less than the number of sub-pixels included in each row of pixels.
As shown in fig. 3, it is exemplarily shown that a row of pixels 3 is divided into N groups of pixels corresponding to N groups of sub-display data groups, which are respectively denoted as a first group, a second group, … …, and an nth group; the preset number is 3, that is, each pixel includes R, G, B three sub-pixels of three colors, and N ≧ 1 is an integer.
Step S202, judging whether a preset number of pixels corresponding to the sub-display data group are high-frequency pixels or not; the high-frequency pixels are pixels with the brightness change frequency larger than the preset frequency.
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 S203, if the preset number of pixels corresponding to the sub-display data set are all high-frequency pixels, directly outputting the sub-display data set.
In application, since the high-frequency pixels are usually pixels located in an edge region of the display screen and can reflect the detailed features of the display screen, when all pixels corresponding to a sub-display data group are high-frequency pixels, all pixels corresponding to the sub-pixel data group can be determined to be pixels located in the edge region of the display screen, and the sub-display data group can be directly output for driving the corresponding pixels to reflect the detailed features of the display screen.
Step S204, if the preset number of pixels corresponding to the sub-display data group have low-frequency pixels, outputting an average value of sub-display data corresponding to all sub-pixels in the preset number of pixels; the low-frequency pixels are pixels with the brightness change frequency less than or equal to the preset frequency.
In application, since the low-frequency pixels are usually pixels located in a non-edge area of the display screen and can reflect main image features of the display screen, when there are low-frequency pixels in all pixels corresponding to a sub-display data group, all pixels corresponding to the sub-pixel data group can be determined to be pixels located in the non-edge area of the display screen, and a data mean value of the sub-display data group can be output for driving the corresponding pixels, so that the luminance of the pixels located in the non-edge area of the display screen is more uniform.
In the embodiment, the sub-display data corresponding to each row of pixels of the display panel is divided into a plurality of sub-display data groups, so that each sub-display data group corresponds to a preset number of pixels; when the preset number of pixels of the sub-display data group pair are all high-frequency pixels, directly outputting the sub-display data group; when the pixels with the preset number of the sub-display data groups have low-frequency pixels, the average value of the sub-display data corresponding to all the sub-pixels in the pixels with the preset number is output, so that the brightness change frequency of the pixels with the preset number corresponding to each sub-display data group can be kept consistent, the display picture is prevented from being locally inverted, the display effect of the display panel under a large visual angle is effectively improved, the scheme is simple and easy to implement, and no extra cost exists.
As shown in fig. 4, in another embodiment of the present application, step S201 in the embodiment corresponding to fig. 2 includes:
step S401, perform color gain processing on the display data of the display panel, and enhance 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 S401, the method includes:
detecting whether the display data comprises sub-display data corresponding to the face image; if yes, the process proceeds to step S401.
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 S401 includes:
step S4012, converting the display data of the display panel from red, green and blue color space to a hue saturation lightness color model;
step S4013, 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 S4013, performing saturation gain processing on the display data of the hue saturation value color model, and enhancing a saturation gain of sub-display data corresponding to the first specific pixel in the display data.
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). Hue Saturation Value color model, i.e. HSV (Hue, Saturation, Value) color model, in which the parameters of the colors are: 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.
Step S402, high-frequency gain processing is carried out on the display data, and the brightness of sub-display data corresponding to high-frequency pixels in the display data is adjusted.
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.
Step S403, 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 S403, 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 S403.
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 S404, 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 gamma value is used for reflecting the relation 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 obtained 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. The tristimulus values of red, green and blue are related to the magnitude of the voltage values of the driving signals inputted to the pixels of the corresponding colors, and the driving signals are obtained after the display data are processed and transformed by the processor and the source driver of the display device.
In application, the tristimulus values are based on the CIE 1931XYZ Color Space (CIE XYZ Color Space) standard proposed by the International Commission on Illumination (CIE). The CIE 1931XYZ 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 CIE 1931XYZ color space is often represented by the CIE 1931Chromaticity Diagram (CIE 1931Chromaticity Diagram), in which there are three XYZ parameters, where stimulus value Y represents luminance.
In one embodiment, step S404 includes:
step S4041, correcting the sub-display data corresponding to the main sub-pixel in the display data by a first gamma curve to adjust the white balance of 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 S4042, correcting the sub-display data corresponding to the sub-pixel in the display data through a second gamma curve 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 tri-stimulus value corresponding to each gray scale of the secondary sub-pixel can be obtained according to the gamma value.
Fig. 5 exemplarily shows a schematic diagram of one frame of a display screen implemented on a spatial domain after processing the display data based on steps S4041 and S4042.
Fig. 6 exemplarily shows a schematic diagram of a multi-frame display screen implemented in a time domain after processing the display data based on steps S4041 and S4042. Fig. 6 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. 5 and 6, 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 data processing system, which may be a software program system in a processor of a display device, for executing the method steps in the embodiment corresponding to fig. 2.
As shown in fig. 7, the display data processing system 7 includes:
a dividing module 701 configured to divide sub-display data corresponding to each row of pixels of the display panel into a plurality of sub-display data groups; each sub-display data group corresponds to a preset number of pixels;
a determining module 702 configured to determine whether a preset number of pixels corresponding to the sub-display data set are high-frequency pixels; the high-frequency pixels are pixels with the brightness change frequency larger than the preset frequency;
a first output module 703 configured to directly output the sub-display data group if the preset number of pixels corresponding to the sub-display data group are all high-frequency pixels;
a second output module 704 configured to output an average value of the sub-display data corresponding to all sub-pixels in the preset number of pixels if there is a low-frequency pixel in the preset number of pixels corresponding to the sub-display data group; the low-frequency pixels are pixels with the brightness change frequency less than or equal to the preset frequency.
In application, each module in the display data processing system is a software program module, and can also be realized by an independent processor, or be integrated together into the same processor.
In the embodiment, the sub-display data corresponding to each row of pixels of the display panel is divided into a plurality of sub-display data groups, so that each sub-display data group corresponds to a preset number of pixels; when the preset number of pixels of the sub-display data group pair are all high-frequency pixels, directly outputting the sub-display data group; when the pixels with the preset number of the sub-display data groups have low-frequency pixels, the average value of the sub-display data corresponding to all the sub-pixels in the pixels with the preset number is output, so that the brightness change frequency of the pixels with the preset number corresponding to each sub-display data group can be kept consistent, the display picture is prevented from being locally inverted, the display effect of the display panel under a large visual angle is effectively improved, the scheme is simple and easy to implement, and no extra cost exists.
In another embodiment of the present application, as shown in fig. 8, the display data processing system 7 of fig. 7 further comprises means for performing the method steps of the corresponding embodiment of fig. 4, further comprising:
a color gain module 705 configured to perform color gain processing on display data of a 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 706 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 707 configured to perform isolated point gain processing on the display data, and adjust the brightness of sub-display data corresponding to a second specific pixel in the display data;
a gamma correction module 708 configured to perform gamma correction processing on the display data to perform white balance adjustment on the display data.
In one embodiment, data processing system 7 is shown, further comprising:
the face detection module is used for detecting whether the display data comprises sub-display data corresponding to the face image; if so, the process proceeds to the color gain block 705.
In one embodiment, data processing system 7 is shown, further comprising:
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 block 707 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. 9, an embodiment of the present application provides a display device 9, including:
a processor 91;
a source driver 92 communicatively coupled to the processor 91;
a gate driver 93 communicatively coupled to the processor 91;
a display panel 94 communicatively connected to the source driver 92; and
a memory 95 communicatively coupled to the processor 91, the memory 95 including a computer program 951, such as a display data processing program, stored in the memory and executable on the processor. The processor 91, when executing the computer program, implements the steps of the above-described respective method embodiments, such as the steps S201 to S204 shown in fig. 2. Alternatively, the processor 91 executes the computer program 951 to implement the functions of the modules in the device embodiments, such as the modules 701 to 704 shown in fig. 7.
Illustratively, the computer program 951 may be partitioned into one or more modules that are stored in the memory 95 and executed by the processor 91 to complete the present application. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 951 in the display device 9. For example, the computer program 951 may be divided into a dividing module, a determining module, a first output module, and a second output module, and each module may specifically function as follows:
a dividing module configured to divide sub-display data corresponding to each row of pixels of the display panel into a plurality of sub-display data groups; each sub-display data group corresponds to a preset number of pixels;
the judging module is used for judging whether the pixels with the preset number corresponding to the sub-display data group are high-frequency pixels or not; the high-frequency pixels are pixels with the brightness change frequency larger than the preset frequency;
the first output module is set to directly output the sub-display data group if the preset number of pixels corresponding to the sub-display data group are all high-frequency pixels;
a second output module configured to output an average value of sub-display data corresponding to all sub-pixels in a preset number of pixels if there is a low-frequency pixel in the preset number of pixels corresponding to the sub-display data group; the low-frequency pixels are pixels with the brightness change frequency less than or equal to the preset frequency.
The display device may include, but is not limited to, a processor, a source driver, a gate driver, a display panel, and a memory. The Display device 9 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 surface Display device, or the like. It will be understood by those skilled in the art that fig. 9 is merely an example of the display apparatus 9, and does not constitute a limitation of the display apparatus 9, 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 91 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 memory 95 may be an internal storage unit of the display device 9, such as a hard disk or a memory of the display device 9. The memory 95 may also be an external storage device of the display apparatus 9, 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 9. Further, the memory 95 may also include both an internal storage unit and an external storage device of the display apparatus 9. The memory 95 is used for storing the computer program and other programs and data required by the display device. The memory 95 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, and the like. 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 (10)
1. A display data processing method, comprising:
dividing sub-display data corresponding to each row of pixels of the display panel into a plurality of sub-display data groups; each sub-display data group corresponds to a preset number of pixels;
judging whether the preset number of pixels corresponding to the sub-display data group are high-frequency pixels or not; the high-frequency pixels are pixels with the brightness change frequency larger than the preset frequency;
if the preset number of pixels corresponding to the sub-display data group are all high-frequency pixels, directly outputting the sub-display data group;
if the preset number of pixels corresponding to the sub-display data group have low-frequency pixels, outputting the average value of the sub-display data corresponding to all the sub-pixels in the preset number of pixels; the low-frequency pixels are pixels with the brightness change frequency less than or equal to the preset frequency.
2. The display data processing method of claim 1, wherein before dividing the display data corresponding to each row of pixels of the display panel into a plurality of sub-display data groups, comprising:
performing 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, wherein the first specific pixel is a pixel needing to perform color adjustment on emphasis 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;
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, wherein the second specific pixel is a pixel of a discrete image area in a display picture 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 of the color gain process 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 data processing 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.
5. The method as claimed in claim 4, wherein the first gamma curve is used to represent the corresponding relationship between the gray scale and the gamma value of the primary sub-pixel, and the second gamma curve is used to represent the corresponding relationship between the gray scale and the gamma value of the secondary sub-pixel.
6. The display data processing 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 of the display data of the display panel before the enhancement of the color gain of the sub-display data corresponding to the first specific pixel in the display data comprises:
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 data processing system, comprising:
a dividing module configured to divide sub-display data corresponding to each row of pixels of the display panel into a plurality of sub-display data groups; each sub-display data group corresponds to a preset number of pixels;
the judging module is used for judging whether the pixels with the preset number corresponding to the sub-display data group are high-frequency pixels or not; the high-frequency pixels are pixels with the brightness change frequency larger than the preset frequency;
the first output module is set to directly output the sub-display data group if the preset number of pixels corresponding to the sub-display data group are all high-frequency pixels;
a second output module configured to output an average value of sub-display data corresponding to all sub-pixels in a preset number of pixels if there is a low-frequency pixel in the preset number of pixels corresponding to the sub-display data group; the low-frequency pixels are pixels with the brightness change frequency less than or equal to the preset frequency.
9. The display data processing system of claim 8, further comprising:
the color gain module is used for carrying out color gain processing on display data of the display panel and enhancing the color gain of sub-display data corresponding to a first specific pixel in the display data, wherein the first specific pixel is a pixel needing to be subjected to color adjustment in a display picture of the display panel;
the high-frequency gain module is used for 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;
an isolated point gain module 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, where the second specific pixel is a pixel in a discrete image area in a display screen of the display panel;
and the gamma correction module is used for carrying out gamma correction processing on the display data so as to carry out white balance adjustment on the display data.
10. 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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