CN115083365B - Picture display method and picture display device - Google Patents
Picture display method and picture display device Download PDFInfo
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- CN115083365B CN115083365B CN202210804177.1A CN202210804177A CN115083365B CN 115083365 B CN115083365 B CN 115083365B CN 202210804177 A CN202210804177 A CN 202210804177A CN 115083365 B CN115083365 B CN 115083365B
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
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Abstract
The present invention relates to a picture display method and a picture display device, which are applied to a display panel, wherein the display panel comprises a plurality of pixels arranged in an array, each pixel comprises a plurality of sub-pixels, the plurality of sub-pixels comprise target sub-pixels, and the picture display method comprises: acquiring gray scale information of a picture to be displayed, wherein the gray scale information comprises gray scale signals of all sub-pixels in each pixel; determining a target pixel from a plurality of pixels according to the gray scale signal; performing view angle compensation on the gray-scale signals of the target sub-pixels in the target pixels to obtain compensated gray-scale signals of the target sub-pixels in the target pixels; the display panel is driven to display a picture to be displayed according to the compensated gray level signals and the gray level signals, so that the monochromatic view angle compensation can be selectively carried out on part of pixels, the negative influence of the starting of the monochromatic view angle compensation on the color mixing picture display view angle of the display panel is reduced, and the improvement effect of the starting of the monochromatic view angle compensation on the display view angle and the shaking marks of the display panel is further improved.
Description
[ field of technology ]
The present disclosure relates to the field of display technologies, and in particular, to a method and an apparatus for displaying a picture.
[ background Art ]
With the development of display technology, the size of the liquid crystal display screen is also larger and larger, and the viewing angle parameter of the liquid crystal display screen with large size is particularly important. Among different types of liquid crystal display panels, the vertical alignment (Vertical Alignment, VA) mode liquid crystal display panel has a significant disadvantage in viewing angle. For large-size VA-type lcd panels, the prior art generally employs a viewing angle compensation (View AngleCompensation, VAC) adjustment method to improve the brightness effect of side View with a four-domain pixel structure.
However, VAC debug can have other effects on the panel display, such as worsening the crazing, while improving viewing angle. Improving the VA display viewing angle while reducing the deterioration of VAC on the crazing by turning on the monochrome VAC can be achieved, but turning on the monochrome VAC also has some negative effects, such as deteriorating the display viewing angle of the color-mixed picture, which limits the improvement effect of turning on the monochrome VAC on the VA display viewing angle and crazing.
[ invention ]
The embodiment of the application provides a picture display method and a picture display device, which are used for reducing the deterioration of a color mixing picture display visual angle caused by starting a single-color VAC, and further improving the improvement effect of the VA display visual angle and the shaking marks caused by starting the single-color VAC.
In order to solve the above-mentioned problems, an embodiment of the present application provides a picture display method applied to a display panel including a plurality of pixels arranged in an array, each pixel including a plurality of sub-pixels including a target sub-pixel, the picture display method including: acquiring gray scale information of a picture to be displayed, wherein the gray scale information comprises gray scale signals of all sub-pixels in each pixel; determining a target pixel from a plurality of pixels according to the gray scale signal; performing view angle compensation on the gray-scale signals of the target sub-pixels in the target pixels to obtain compensated gray-scale signals of the target sub-pixels in the target pixels; and driving the display panel to display the picture to be displayed according to the compensated gray-scale signal and the gray-scale signal.
The method for driving the display panel to display the picture to be displayed according to the compensated gray-scale signal and the gray-scale signal comprises the following steps: and outputting the compensated gray-scale signal to a target sub-pixel in the target pixel, and outputting the gray-scale signal to the target sub-pixels in other pixels except the target pixel in the plurality of pixels so as to drive the display panel to display the picture to be displayed.
The method for determining the target pixel from the plurality of pixels according to the gray-scale signal specifically comprises the following steps: determining a gray scale value corresponding to each sub-pixel according to the gray scale signal of each sub-pixel; determining the ratio of the gray scale value corresponding to the target sub-pixel in each pixel to the sum of the gray scale values corresponding to all the sub-pixels in each pixel; and determining the pixel with the ratio smaller than the preset ratio corresponding to the included target sub-pixel as the target pixel.
The method for acquiring the gray level information of the picture to be displayed specifically comprises the following steps: when the picture to be displayed is a single-color picture, acquiring gray-scale signals of all sub-pixels in one pixel of the picture to be displayed, wherein the gray-scale signals of all the sub-pixels in different pixels of the single-color picture are respectively the same; when the picture to be displayed is not a monochromatic picture, gray-scale signals of all sub-pixels in each pixel of the picture to be displayed are obtained.
The method for compensating the view angle of the gray-scale signal of the target sub-pixel in the target pixel to obtain the compensated gray-scale signal of the target sub-pixel in the target pixel specifically comprises the following steps: determining a positive compensation gray-scale signal and a negative compensation gray-scale signal corresponding to a gray-scale signal of a target sub-pixel in the target pixel; and determining the compensated gray-scale signal of the target sub-pixel in the corresponding target pixel according to the positive compensation gray-scale signal and the negative compensation gray-scale signal.
In order to solve the above-described problems, an embodiment of the present application provides a picture display device applied to a display panel including a plurality of pixels arranged in an array, each pixel including a plurality of sub-pixels including a target sub-pixel, the picture display device including: the acquisition module is used for acquiring gray-scale information of a picture to be displayed, wherein the gray-scale information comprises gray-scale signals of all sub-pixels in each pixel; a determining module for determining a target pixel from a plurality of pixels according to the gray-scale signal; the visual angle compensation module is used for performing visual angle compensation on the gray-scale signals of the target sub-pixels in the target pixels so as to obtain compensated gray-scale signals of the target sub-pixels in the target pixels; the driving module is used for driving the display panel to display the picture to be displayed according to the compensated gray-scale signals and the gray-scale signals.
The driving module is specifically used for: and outputting the compensated gray-scale signal to a target sub-pixel in the target pixel, and outputting the gray-scale signal to the target sub-pixels in other pixels except the target pixel in the plurality of pixels so as to drive the display panel to display the picture to be displayed.
The determining module is specifically configured to: determining a gray scale value corresponding to each sub-pixel according to the gray scale signal of each sub-pixel; determining the ratio of the gray scale value corresponding to the target sub-pixel in each pixel to the sum of the gray scale values corresponding to all the sub-pixels in each pixel; and determining the pixel with the ratio smaller than the preset ratio corresponding to the included target sub-pixel as the target pixel.
The acquisition module is specifically configured to: when the picture to be displayed is a single-color picture, acquiring gray-scale signals of all sub-pixels in one pixel of the picture to be displayed, wherein the gray-scale signals of all the sub-pixels in different pixels of the single-color picture are respectively the same; when the picture to be displayed is not a monochromatic picture, gray-scale signals of all sub-pixels in each pixel of the picture to be displayed are obtained.
The visual angle compensation module is specifically used for: determining a positive compensation gray-scale signal and a negative compensation gray-scale signal corresponding to a gray-scale signal of a target sub-pixel in the target pixel; and determining the compensated gray-scale signal of the target sub-pixel in the corresponding target pixel according to the positive compensation gray-scale signal and the negative compensation gray-scale signal.
The beneficial effects of this application are: compared with the prior art, the picture display method and the picture display device are applied to a display panel, the gray scale information of a picture to be displayed is obtained, the gray scale information comprises gray scale signals of all sub-pixels in each pixel, a target pixel is determined from a plurality of pixels according to the gray scale signals, then the gray scale signals of the target sub-pixels in the target pixel are subjected to view angle compensation, so that compensated gray scale signals of the target sub-pixels in the target pixel are obtained, the display panel is driven to display the picture to be displayed according to the compensated gray scale signals and the gray scale signals, and therefore single-color view angle compensation can be selectively carried out on part of pixels of the picture to be displayed, and single-color view angle compensation is not carried out on other pixels of the picture to be displayed, so that negative influence of starting single-color view angle compensation on a mixed-color picture display view angle of the display panel is reduced, and further improvement effects of starting single-color view angle compensation on a display view angle and a moving head line of the display panel are improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a picture display method according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present application;
fig. 4 is another schematic structural diagram of a display device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a picture display device according to an embodiment of the present application.
[ detailed description ] of the invention
The present application is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustration of the present application, but do not limit the scope of the present application. Likewise, the following embodiments are only some, but not all, of the embodiments of the present application, and all other embodiments obtained by one of ordinary skill in the art without inventive effort are within the scope of the present application.
Referring to fig. 1, fig. 1 is a flowchart of a method for displaying a picture according to an embodiment of the present disclosure. As shown in fig. 1, the screen display method may include the steps of:
s11, acquiring gray-scale information of a picture to be displayed, wherein the gray-scale information comprises gray-scale signals of all sub-pixels in each pixel.
The picture display method provided in this embodiment is applied to a display panel, as shown in fig. 2, which includes a plurality of pixels P arranged in an array, each of which includes a plurality of sub-pixels (e.g., a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B). In addition, each step or sub-step included in the picture display method provided in the embodiment may be executed by a corresponding picture display device, so as to drive the display panel to display the picture to be displayed. Specifically, as shown in fig. 3 and 4, the above-mentioned screen display device may be integrated in a display device, which may include the above-mentioned display panel and a driving circuit for supplying a driving voltage to the above-mentioned display panel, and, when embodied, the above-mentioned screen display device may be integrated in the display panel (as shown in fig. 3) or in a driving circuit (as shown in fig. 4). The display panel may be a liquid crystal display panel, for example, a vertically aligned (Vertical Alignment, VA) liquid crystal display panel, and the display device may be any product or component having a display function, such as a television, a notebook computer, a tablet computer, a wearable display device (e.g., a smart bracelet, a smart watch, etc.), a mobile phone, a virtual reality device, an augmented reality device, a vehicle-mounted display, an advertisement lamp box, etc.
Specifically, as shown in fig. 2, the display panel may further include a plurality of scan lines G1 arranged in the row direction ～ Gn, a plurality of strips arranged in the column directionData line D1 ～ Dm, the red subpixel R, the green subpixel G, and the blue subpixel B in the above-described display panel may be connected to corresponding data lines and scan lines, respectively. In one example, the red, green, and blue sub-pixels R, G, and B in the display panel may be divided into red, green, and blue sub-pixel columns that are periodically arranged and sequentially disposed adjacent to each other in a direction from one end of the scan line, wherein each of the red, green, or blue sub-pixel columns corresponds to one data line, so that the display device may output a corresponding grayscale signal to a corresponding sub-pixel (e.g., red, green, or blue sub-pixel R, G, or B) through the data line by a driving circuit. It is understood that the gray scale signal of each sub-pixel in the present embodiment may correspond to a gray scale signal output to each sub-pixel via the data line, and is used to drive each sub-pixel to emit light, and may be specifically a gray scale voltage.
In this embodiment, the frame to be displayed may be a frame of image to be displayed on the display panel, and the gray-scale information of the frame to be displayed may be obtained by reading a voltage signal of the frame of image from the source driving IC terminal.
In some embodiments, the step S11 may further specifically include:
s111, when the picture to be displayed is a monochromatic picture, acquiring gray-scale signals of all sub-pixels in one pixel of the picture to be displayed;
s112, when the picture to be displayed is not a monochromatic picture, gray-scale signals of all sub-pixels in each pixel of the picture to be displayed are obtained.
Wherein the gray-scale signals of the sub-pixels in different pixels of the monochrome picture are respectively the same, in a specific example, the display color and the display brightness of the pixels of the monochrome picture may be the same. Specifically, the above-described single-color picture may be a primary color picture (e.g., a red picture, a green picture, or a blue picture) or a single mixed-color picture. It will be appreciated that the display colors of the individual pixels of the primary color picture are the same and are primary colors, and the display colors of the individual pixels of the single mixed color picture are the same and are mixed colors which are added and synthesized by a plurality of primary colors in different proportions.
In a specific implementation, before S111, the screen display method may further include: if the gray-scale signals of all the sub-pixels in any two pixels of the picture to be displayed are detected to be respectively corresponding to the same, the picture to be displayed can be determined to be a single-color picture, otherwise, the picture to be displayed can be determined not to be the single-color picture. Therefore, when the picture to be displayed is a single-color picture, only the gray-scale signal data of a plurality of sub-pixels included in any pixel of the picture to be displayed is needed to be stored, thereby being beneficial to shortening the flow period and saving the storage space.
S12, determining a target pixel from a plurality of pixels according to the gray-scale signal.
In this embodiment, each pixel may include one target sub-pixel, and the target sub-pixel included in each pixel may correspond to any one of a plurality of sub-pixels included in each pixel. For example, when each pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the target sub-pixel included in each pixel may correspond to the red sub-pixel, the green sub-pixel, or the blue sub-pixel included in each pixel.
The target pixel may be a pixel with a high gray level of a target sub-pixel (for example, a blue sub-pixel) in the plurality of pixels, or may be a pixel with a high gray level of a target sub-pixel in the plurality of pixels relative to other sub-pixels (for example, a red sub-pixel and a green sub-pixel). And, the number of the target pixels may be one or more.
In a specific embodiment, the step S12 may specifically include:
s121, determining a gray scale value corresponding to each sub-pixel according to the gray scale signal of each sub-pixel.
Specifically, a first lookup table may be established through a plurality of experiments in advance, and the first lookup table may record a one-to-one correspondence between a plurality of gray scale signals (for example, gray scale voltages) and a plurality of gray scale values. And, after the gray-scale signal of each sub-pixel is obtained, the gray-scale value corresponding to the gray-scale signal of each sub-pixel may be obtained from the first lookup table.
S122, determining the ratio of the gray scale value corresponding to the target sub-pixel in each pixel to the sum of the gray scale values corresponding to all the sub-pixels in each pixel.
Specifically, when each pixel is composed of one red sub-pixel, one green sub-pixel and one blue sub-pixel, and the target sub-pixel in each pixel is a blue sub-pixel, the ratio (or referred to as the gray scale duty ratio) corresponding to the target sub-pixel in each pixel may be equal to gray b/(gray r+gray g+gray b), where gray r, gray g and gray b are respectively the gray scale value corresponding to the red sub-pixel in each pixel, the gray scale value corresponding to the green sub-pixel in each pixel and the gray scale value corresponding to the red sub-pixel in each pixel.
S123, determining the pixel with the ratio smaller than the preset ratio corresponding to the included target sub-pixel as the target pixel.
Specifically, when the ratio corresponding to the target sub-pixel in a certain pixel is smaller than the preset ratio, the pixel can be determined to be the target pixel. In one example, the predetermined ratio may be 1/3.
S13, performing view angle compensation on gray-scale signals of target sub-pixels in the target pixels to obtain compensated gray-scale signals of the target sub-pixels in the target pixels.
Specifically, after at least one target pixel is determined from the plurality of pixels, single-color VAC adjustment may be turned on for each target pixel, but single-color VAC adjustment may not be turned on for all other pixels except the target pixel in the plurality of pixels, so as to avoid the problem that the single-color VAC adjustment is turned on for all the plurality of pixels and deteriorates the display viewing angle of some mixed-color pictures, for example, the inventors found that after the single-color VAC adjustment is turned on for all the blue sub-pixels of the plurality of pixels, the gray level of the blue sub-pixel is high, or the gray level of the blue sub-pixel is high relative to the gray level of the red sub-pixel and the gray level of the green sub-pixel, the viewing angle of some mixed-color pictures is deteriorated when the single-color VAC adjustment is not turned on, that is, that the difference between the red-blue three primary color ratio of the mixed-color pictures observed in a large viewing angle and the red-green-blue three primary color ratio of the mixed-color pictures observed in a forward view angle is larger than when the blue VAC is not turned on, so that the mixed-color viewing angle is deteriorated, which is unfavorable for improving the display and the display shaking effect of the shaking head VA.
It can be understood that, in this embodiment, by turning on the single-color VAC debug for the target pixel, and not turning on the single-color VAC debug for the other pixels except for the target pixel, not only the improvement effect of maintaining the single-color VAC debug on the display viewing angle and the panning of the display panel described above can be achieved, but also the deterioration of the single-color VAC debug on the display viewing angle of the specific color-mixed picture of the display panel (for example, the picture in which the target sub-pixel of the turned on VAC is high gray scale in one pixel or high gray scale relative to the other sub-pixels) can be eliminated, so that the improvement effect of the single-color VAC debug on the display viewing angle and the panning can be enhanced, which is beneficial to the wide popularization of the picture display method in this embodiment.
In this embodiment, turning on single-color VAC debug for each target pixel may specifically refer to: VAC debug is turned on for target subpixels in each target pixel, and VAC debug is not turned on for other subpixels in each target pixel except for the target subpixels. In a specific example, the VAC debug may be implemented by combining adjacent sub-pixels of the same gray scale and the same light emission color connected to the same data line, respectively giving voltage values (i.e., H/L values) higher/lower than the original gray scale voltage, and then adjusting appropriate H/L values, so as to achieve that the front-view brightness is substantially unchanged and the difference between the front-view brightness and the side-view brightness curves is reduced, thereby improving the viewing angle.
In a specific embodiment, the step S13 may specifically include:
s131, determining a positive compensation gray-scale signal and a negative compensation gray-scale signal corresponding to the gray-scale signal of the target sub-pixel in the target pixel.
Specifically, corresponding H/L values may be set for different gray scale signals of the target subpixel, where the positive compensation gray scale signal and the negative compensation gray scale signal may be an H value and an L value, respectively.
S132, determining the compensated gray-scale signals of the target sub-pixels in the corresponding target pixels according to the positive compensation gray-scale signals and the negative compensation gray-scale signals.
Specifically, the brightness corresponding to the compensated gray-scale signal of the target subpixel in each target pixel may be equal to the average value of the brightness corresponding to the positive compensated gray-scale signal corresponding to the target subpixel in each target pixel and the brightness corresponding to the negative compensated gray-scale signal corresponding to the target subpixel in each target pixel.
S14, driving the display panel to display the picture to be displayed according to the compensated gray-scale signals and the gray-scale signals.
Specifically, after determining the compensated gray-scale signal of the target subpixel in each of the target pixels, the compensated gray-scale signal of the target subpixel in each of the target pixels may be output to the target subpixel in each of the target pixels, and the gray-scale signals of the target subpixels in the other pixels may be respectively output to the target subpixels in the other pixels except for the target pixel in the plurality of pixels, and the gray-scale signals of the other subpixels may be respectively output to the other subpixels except for the target subpixel in the display panel, so as to drive the display panel to display the to-be-displayed picture.
As can be seen from the above, the picture display method in this embodiment is applied to a display panel, by obtaining the gray scale information of the picture to be displayed, where the gray scale information includes the gray scale signals of each sub-pixel in each pixel, determining the target pixel from a plurality of pixels according to the gray scale signals, and then performing view angle compensation on the gray scale signals of the target sub-pixels in the target pixel, so as to obtain the compensated gray scale signals of the target sub-pixels in the target pixel, and driving the display panel to display the picture to be displayed according to the compensated gray scale signals and the gray scale signals, so that the monochrome view angle compensation can be selectively performed on a part of the pixels of the picture to be displayed, and the monochrome view angle compensation is not performed on other pixels of the picture to be displayed, so as to reduce the negative influence of the opening monochrome view angle compensation on the color mixing picture display view angle of the display panel, and further improve the display view angle and the crazing effect of the opening monochrome view angle compensation on the display panel.
On the basis of the method described in the foregoing embodiments, this embodiment will be further described from the perspective of the apparatus, referring to fig. 2 to 5, a picture display apparatus 300 provided in this embodiment may include:
(1) Acquisition module 301
The acquiring module 301 is configured to acquire gray-scale information of a picture to be displayed, where the gray-scale information includes gray-scale signals of sub-pixels in each pixel.
The picture display device provided in this embodiment is applied to a display panel, as shown in fig. 2, which includes a plurality of pixels P arranged in an array, each of which includes a plurality of sub-pixels (e.g., a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B). Also, as shown in fig. 3 and 4, the screen display device provided in this embodiment may be integrated in a display device, which may include the above-mentioned display panel and a driving circuit for supplying a driving voltage to the above-mentioned display panel, and, when embodied, the above-mentioned screen display device may be integrated in the display panel (as shown in fig. 3) or in a driving circuit (as shown in fig. 4).
Specifically, the display panel may be a liquid crystal display panel, such as a vertically aligned (Vertical Alignment, VA) mode liquid crystal display panel. The display device can be any product or component with a display function, such as a television, a notebook computer, a tablet personal computer, a wearable display device (such as a smart bracelet, a smart watch and the like), a mobile phone, a virtual reality device, an augmented reality device, a vehicle-mounted display, an advertising lamp box and the like.
In a specific embodiment, the acquiring module 301 may be specifically configured to:
when the picture to be displayed is a single-color picture, acquiring gray-scale signals of all sub-pixels in one pixel of the picture to be displayed, wherein the gray-scale signals of all the sub-pixels in different pixels of the single-color picture are respectively the same;
when the picture to be displayed is not a monochromatic picture, gray-scale signals of all sub-pixels in each pixel of the picture to be displayed are obtained.
(2) Determination module 302
The determining module 302 is configured to determine a target pixel from a plurality of pixels according to the gray-scale signal.
In this embodiment, each pixel may include one target sub-pixel, and the target sub-pixel included in each pixel may correspond to any one of a plurality of sub-pixels included in each pixel. For example, when each pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the target sub-pixel included in each pixel may correspond to the red sub-pixel, the green sub-pixel, or the blue sub-pixel included in each pixel.
Specifically, the determining module 302 may be specifically configured to:
determining a gray scale value corresponding to each sub-pixel according to the gray scale signal of each sub-pixel;
determining the ratio of the gray scale value corresponding to the target sub-pixel in each pixel to the sum of the gray scale values corresponding to all the sub-pixels in each pixel;
and determining the pixel with the ratio smaller than the preset ratio corresponding to the included target sub-pixel as the target pixel.
(3) Viewing angle compensation module 303
The view compensation module 303 is configured to perform view compensation on the gray-scale signal of the target subpixel in the target pixel, so as to obtain a compensated gray-scale signal of the target subpixel in the target pixel.
The above-mentioned view angle compensation module 303 may be specifically configured to:
determining a positive compensation gray-scale signal and a negative compensation gray-scale signal corresponding to a gray-scale signal of a target sub-pixel in the target pixel;
and determining the compensated gray-scale signal of the target sub-pixel in the corresponding target pixel according to the positive compensation gray-scale signal and the negative compensation gray-scale signal.
(4) Drive module 304
The driving module 304 is configured to drive the display panel to display a frame to be displayed according to the compensated gray-scale signal and the gray-scale signal.
The driving module 304 may be specifically configured to:
and outputting the compensated gray-scale signal to a target sub-pixel in the target pixel, and outputting the gray-scale signal to the target sub-pixels in other pixels except the target pixel in the plurality of pixels so as to drive the display panel to display the picture to be displayed.
It should be noted that, in the implementation, each module may be implemented as an independent entity, or may be combined arbitrarily and implemented as the same entity or a plurality of entities, and the implementation of each module may refer to the foregoing method embodiment, which is not repeated herein.
As can be seen from the above, the screen display device of the present embodiment is applied to a display panel, and includes: the acquisition module is used for acquiring gray-scale information of a picture to be displayed, wherein the gray-scale information comprises gray-scale signals of all sub-pixels in each pixel; a determining module for determining a target pixel from a plurality of pixels according to the gray-scale signal; the visual angle compensation module is used for performing visual angle compensation on the gray-scale signals of the target sub-pixels in the target pixels so as to obtain compensated gray-scale signals of the target sub-pixels in the target pixels; the driving module is used for driving the display panel to display the picture to be displayed according to the compensated gray level signals and the gray level signals, so that the monochromatic viewing angle compensation can be selectively carried out on part of pixels of the picture to be displayed, the monochromatic viewing angle compensation is not carried out on other pixels of the picture to be displayed, the negative influence of the starting monochromatic viewing angle compensation on the color mixing picture display viewing angle of the display panel is reduced, and the improvement effect of the starting monochromatic viewing angle compensation on the display viewing angle and the shaking head line of the display panel is further improved.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.
Claims (8)
1. A picture display method applied to a display panel, the display panel including a plurality of pixels arranged in an array, each of the pixels including a plurality of sub-pixels including a target sub-pixel, the picture display method comprising:
acquiring gray scale information of a picture to be displayed, wherein the gray scale information comprises gray scale signals of all sub-pixels in each pixel;
determining a target pixel from the plurality of pixels according to the gray scale signal;
the determining a target pixel from the plurality of pixels according to the gray-scale signal specifically includes:
determining a gray scale value corresponding to each sub-pixel according to the gray scale signal of each sub-pixel;
determining the ratio of the gray scale value corresponding to the target sub-pixel in each pixel to the sum of the gray scale values corresponding to all the sub-pixels in each pixel;
determining the pixel, which is included and corresponds to the target sub-pixel and has the ratio smaller than a preset ratio, as a target pixel;
performing view angle compensation on the gray-scale signals of the target sub-pixels in the target pixels to obtain compensated gray-scale signals of the target sub-pixels in the target pixels;
and driving the display panel to display the picture to be displayed according to the compensated gray-scale signal and the gray-scale signal.
2. The method according to claim 1, wherein the driving the display panel to display the picture to be displayed according to the compensated gray-scale signal and the gray-scale signal comprises:
outputting the compensated gray-scale signal to the target sub-pixel in the target pixel, and outputting the gray-scale signal to the target sub-pixel in other pixels except the target pixel in the plurality of pixels, so as to drive the display panel to display the picture to be displayed.
3. The method for displaying a picture according to claim 1, wherein the step of obtaining gray-scale information of the picture to be displayed specifically comprises:
when the picture to be displayed is a single-color picture, acquiring gray-scale signals of all the sub-pixels in one pixel of the picture to be displayed, wherein the gray-scale signals of all the sub-pixels in different pixels of the single-color picture are respectively the same;
and when the picture to be displayed is not the single-color picture, acquiring gray-scale signals of the sub-pixels in each pixel of the picture to be displayed.
4. The method of claim 1, wherein performing view compensation on the gray-scale signal of the target sub-pixel in the target pixel to obtain a compensated gray-scale signal of the target sub-pixel in the target pixel, specifically comprises:
determining a positive compensation gray-scale signal and a negative compensation gray-scale signal corresponding to the gray-scale signal of the target sub-pixel in the target pixel;
and determining the compensated gray-scale signal of the target sub-pixel in the corresponding target pixel according to the positive compensation gray-scale signal and the negative compensation gray-scale signal.
5. A picture display device, characterized in that it is applied to a display panel including a plurality of pixels arranged in an array, each of the pixels including a plurality of sub-pixels including a target sub-pixel, the picture display device comprising:
the acquisition module is used for acquiring gray-scale information of a picture to be displayed, wherein the gray-scale information comprises gray-scale signals of all the sub-pixels in each pixel;
a determining module, configured to determine a target pixel from the plurality of pixels according to the grayscale signal;
the determining module is specifically configured to:
determining a gray scale value corresponding to each sub-pixel according to the gray scale signal of each sub-pixel;
determining the ratio of the gray scale value corresponding to the target sub-pixel in each pixel to the sum of the gray scale values corresponding to all the sub-pixels in each pixel;
determining the pixel, which is included and corresponds to the target sub-pixel and has the ratio smaller than a preset ratio, as a target pixel;
the visual angle compensation module is used for performing visual angle compensation on the gray-scale signals of the target sub-pixels in the target pixels so as to obtain compensated gray-scale signals of the target sub-pixels in the target pixels;
and the driving module is used for driving the display panel to display the picture to be displayed according to the compensated gray-scale signal and the gray-scale signal.
6. The picture display device as claimed in claim 5, wherein the driving module is specifically configured to:
outputting the compensated gray-scale signal to the target sub-pixel in the target pixel, and outputting the gray-scale signal to the target sub-pixel in other pixels except the target pixel in the plurality of pixels, so as to drive the display panel to display the picture to be displayed.
7. The apparatus according to claim 5, wherein the obtaining module is specifically configured to:
when the picture to be displayed is a single-color picture, acquiring gray-scale signals of all the sub-pixels in one pixel of the picture to be displayed, wherein the gray-scale signals of all the sub-pixels in different pixels of the single-color picture are respectively the same;
and when the picture to be displayed is not the single-color picture, acquiring gray-scale signals of the sub-pixels in each pixel of the picture to be displayed.
8. The picture display device as claimed in claim 5, wherein the viewing angle compensation module is specifically configured to:
determining a positive compensation gray-scale signal and a negative compensation gray-scale signal corresponding to the gray-scale signal of the target sub-pixel in the target pixel;
and determining the compensated gray-scale signal of the target sub-pixel in the corresponding target pixel according to the positive compensation gray-scale signal and the negative compensation gray-scale signal.
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| CN109192175A (en) * | 2018-11-05 | 2019-01-11 | 惠科股份有限公司 | A kind of driving method of display panel, driving device and display device |
| CN111798807A (en) * | 2020-07-02 | 2020-10-20 | Tcl华星光电技术有限公司 | Display driving method and display driving device |
| CN114255716A (en) * | 2021-12-27 | 2022-03-29 | 海宁奕斯伟集成电路设计有限公司 | Visual angle compensation method and device of display panel and display panel |
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| EP1553553A2 (en) * | 2004-01-07 | 2005-07-13 | Chi Mei Optoelectronics Corporation | Liquid crystal display driver for compensating viewing angle |
| CN109192175A (en) * | 2018-11-05 | 2019-01-11 | 惠科股份有限公司 | A kind of driving method of display panel, driving device and display device |
| CN111798807A (en) * | 2020-07-02 | 2020-10-20 | Tcl华星光电技术有限公司 | Display driving method and display driving device |
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