CN110599938A - Display panel and picture display method - Google Patents
Display panel and picture display method Download PDFInfo
- Publication number
- CN110599938A CN110599938A CN201910773376.9A CN201910773376A CN110599938A CN 110599938 A CN110599938 A CN 110599938A CN 201910773376 A CN201910773376 A CN 201910773376A CN 110599938 A CN110599938 A CN 110599938A
- Authority
- CN
- China
- Prior art keywords
- gray scale
- scale signal
- pixel
- picture
- primary color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
-
- 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
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
-
- 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
Abstract
The application relates to a display panel and a picture display method, wherein the picture display method is applied to the display panel, the display panel comprises a plurality of pixels which are arranged in an array, each pixel comprises a primary photon pixel and a compensation photon pixel, and the picture display method comprises the following steps: acquiring a picture gray scale value of a picture to be displayed; judging whether the picture gray-scale value is smaller than a first preset threshold value or not; if so, acquiring a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in the picture to be displayed; determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal; and outputting a first target gray scale signal to the primary color photon pixel, and outputting a second target gray scale signal to the compensation photon pixel to display the picture to be displayed. In this way, the color purity, saturation and contrast of the display panel with the RGBW pixel structure can be improved when the display panel displays a low gray scale image.
Description
[ technical field ] A method for producing a semiconductor device
The present application relates to the field of display technologies, and in particular, to a display panel and a picture display method.
[ background of the invention ]
Compared with the display panel with the traditional RGB pixel structure, the display panel with the RGBW pixel structure has higher penetration rate due to the addition of the W sub-pixel (white pixel) as the compensation photon pixel, and can improve the backlight utilization rate and the display brightness, thereby reducing the power consumption of the display panel, reducing the cost and having better development prospect.
However, when displaying a low gray scale image, the color purity, saturation and contrast of the display panel with the RGBW pixel structure are not as good as those of the display panel with the conventional RGB pixel structure.
[ summary of the invention ]
The present disclosure provides a display panel and a method for displaying an image, so as to improve color purity, saturation and contrast of the display panel with an RGBW pixel structure when displaying a low gray level image.
In order to solve the above problem, an embodiment of the present application provides a method for displaying an image, which is applied to a display panel, where the display panel includes a plurality of pixels arranged in an array, each pixel includes a primary-color photonic pixel and a compensation photonic pixel, and the method includes: acquiring a picture gray scale value of a picture to be displayed; judging whether the picture gray-scale value is smaller than a first preset threshold value or not; if so, acquiring a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in the picture to be displayed; determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal; and outputting a first target gray scale signal to the primary color photon pixel, and outputting a second target gray scale signal to the compensation photon pixel to display the picture to be displayed.
Further, the step of determining a first target gray scale signal of the primary color photonic pixel and a second target gray scale signal of the compensation photonic pixel according to the first gray scale signal and the second gray scale signal specifically includes: determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal and the second gray scale signal; and taking the first preset signal as a second target gray scale signal of the compensation photon pixel.
Further, the step of determining a first target gray scale signal of the primary color photonic pixel and a second target gray scale signal of the compensation photonic pixel according to the first gray scale signal and the second gray scale signal specifically includes: judging whether the image gray-scale value is smaller than a second preset threshold value, wherein the second preset threshold value is smaller than the first preset threshold value; if not, determining a second target gray scale signal of the compensation photon pixel according to the first preset proportion and the second gray scale signal; and determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal.
Further, after the step of determining whether the frame gray-scale value is smaller than the second preset threshold, the method further includes: if the picture gray scale value is smaller than the second preset threshold, judging whether the picture gray scale value is smaller than a third preset threshold, wherein the third preset threshold is smaller than the second preset threshold; if not, determining a second target gray scale signal of the compensation photon pixel according to a second preset proportion and the second gray scale signal; and determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal.
Further, the primary color photonic pixel includes a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the compensation photonic pixel is a white sub-pixel, wherein a first target gray scale signal is output to the primary color photonic pixel, and a second target gray scale signal is output to the compensation photonic pixel to display the picture to be displayed, specifically including: and outputting a first target gray scale signal to the red light sub-pixel, the green light sub-pixel and the blue light sub-pixel, and outputting a second target gray scale signal to the white light sub-pixel to display the picture to be displayed.
In order to solve the above problem, an embodiment of the present application further provides a display panel, including: a plurality of pixels arranged in an array, each pixel comprising a primary photon pixel and a compensation photon pixel; the first acquisition module is used for acquiring the picture gray scale value of a picture to be displayed; the first judgment module is used for judging whether the picture gray-scale value is smaller than a first preset threshold value or not; the second obtaining module is used for obtaining a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in a picture to be displayed when the first judging module judges that the obtained picture gray scale value is smaller than a first preset threshold value; the determining module is used for determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal; and the output module is used for outputting a first target gray scale signal to the primary color photon pixel and outputting a second target gray scale signal to the compensation photon pixel so as to display a picture to be displayed.
Further, the determining module includes: the first determining unit is used for determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal and the second gray scale signal; and the second determining unit is used for taking the first preset signal as a second target gray scale signal of the compensation photon pixel.
Further, the determining module includes: the first judging unit is used for judging whether the picture gray-scale value is smaller than a second preset threshold value when the first judging module judges that the obtained picture gray-scale value is smaller than a first preset threshold value, and the second preset threshold value is smaller than the first preset threshold value; the third determining unit is used for determining a second target gray scale signal of the compensation photon pixel according to the first preset proportion and the second gray scale signal when the first judging unit judges that the obtained picture gray scale value is not smaller than the second preset threshold value; and the fourth determining unit is used for determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal.
Further, the determining module further comprises: the second judging unit is used for judging whether the picture gray-scale value is smaller than a third preset threshold value when the first judging unit judges that the obtained picture gray-scale value is smaller than a second preset threshold value, and the third preset threshold value is smaller than the second preset threshold value; and the fifth determining unit is used for determining a second target gray scale signal of the compensation photon pixel according to the second preset proportion and the second gray scale signal when the second judging unit judges that the obtained picture gray scale value is not less than the third preset threshold value.
Furthermore, the display panel further comprises a plurality of scanning lines arranged along the row direction and a plurality of data lines arranged along the column direction, the primary color photon pixels comprise a first primary color photon pixel, a second primary color photon pixel and a third primary color photon pixel, and the first primary color photon pixel, the second primary color photon pixel, the third primary color photon pixel and the compensation photon pixel are divided into a first primary color photon pixel column, a second primary color photon pixel column, a third primary color photon pixel column and a compensation photon pixel column which are periodically arranged and sequentially arranged adjacently along the direction from one end to the other end of the scanning lines, wherein each compensation photon pixel column corresponds to one data line.
The beneficial effect of this application is: different from the prior art, the image display method provided by the application is applied to the display panel, and the gray scale value of the image to be displayed is obtained, and whether the gray scale value of the image is smaller than a first preset threshold value or not is judged, if yes, then obtaining a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in the picture to be displayed, then determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal, then outputting the first target gray scale signal to the primary color photon pixel and outputting the second target gray scale signal to the compensation photon pixel, the display panel with the RGBW pixel structure can improve the color purity, saturation and contrast when displaying low gray scale images, is beneficial to presenting higher resolution, and improves the image quality and market competitiveness of products.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a first flowchart of a screen display method according to an embodiment of the present disclosure;
fig. 2 is a second flowchart of a screen display method according to an embodiment of the present application;
fig. 3 is a third flowchart of a screen display method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a display panel provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a display panel according to an embodiment of the present application.
[ detailed description ] embodiments
The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive step are within the scope of the present application.
Referring to fig. 1, fig. 1 is a first flowchart of a frame display method according to an embodiment of the present disclosure, which is applied to a display panel, where the display panel includes a plurality of pixels arranged in an array, each pixel includes a primary photon pixel and a compensation photon pixel, and a specific process of the frame display method may include the following steps:
s101: and acquiring a picture gray scale value of a picture to be displayed.
In this embodiment, the display panel obtains a frame gray scale value of the frame to be displayed, where the frame gray scale value is a concept of luminance, and the frame gray scale value is an integer, and a value from small to large indicates that the luminance is from dark to light, and corresponds to colors in the frame to be displayed from black to white. Further, the frame gray-scale value is a result of the overall combination of the gray-scale values of the pixels in the frame to be displayed, and reflects the brightness display effect of the entire frame to be displayed. The image gray scale value can be obtained from a source drive IC end, and can also be obtained through calculation based on gray scale signals of each pixel in an image to be displayed.
S102: and judging whether the gray scale value of the picture is smaller than a first preset threshold value, if so, executing a subordinate step S103, and if not, displaying the picture to be displayed according to the existing method.
The first preset threshold is a standard for judging whether the picture to be displayed is a low gray scale image, if the picture gray scale value is smaller than the first preset threshold, the picture to be displayed is the low gray scale image, and if the picture gray scale value is not smaller than the first preset threshold, the picture to be displayed is the high gray scale image.
In this embodiment, the first preset threshold is set based on the maximum screen gray scale value of the display panel, for example, when the maximum screen gray scale value of the display panel is 500, the first preset threshold may be set to 3. Wherein, the maximum frame gray scale value can be obtained from the source driving IC terminal.
S103: and acquiring a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in a picture to be displayed.
Specifically, the display panel further includes a plurality of scan lines arranged along the row direction and a plurality of data lines arranged along the column direction, wherein the primary color photon pixels and the compensation photon pixels are respectively connected to the data lines.
If the gray scale value of the picture to be displayed is smaller than a first preset threshold value, namely the picture to be displayed is a low-gray-scale image, a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in the picture to be displayed, which are input from the outside, are obtained, wherein the first gray scale signal and the second gray scale signal respectively correspond to gray scale voltages output to the primary color photon pixel and the compensation photon pixel by a data line so as to drive the primary color photon pixel and the compensation photon pixel to emit light.
S104: and determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal.
Optionally, the primary color photonic pixel includes a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B), the compensation photonic pixel is a white sub-pixel (W), and the corresponding display panel is a display panel with an RGBW pixel structure.
Further, S104 may specifically include:
(1) and determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal and the second gray scale signal.
Specifically, in order to solve the problem of low color purity, saturation and contrast when the display panel with the RGBW pixel structure displays a low gray scale image, the manner of simultaneously driving R, G, B, W to emit light is originally changed to the manner of simultaneously driving R, G, B to emit light and not driving W to emit light, that is, the display panel with the RGBW pixel structure is changed to the display panel with the RGB pixel structure.
By driving R, G, B to emit light and not driving W to emit light, i.e. not driving the W compensation sub-pixel in the picture to be displayed, if the first gray scale signal is directly outputted to R, G, B, the picture will be distorted. Therefore, in order to avoid the image distortion, it is necessary to re-determine the gray scale signal corresponding to R, G, B in the image to be displayed according to the first gray scale signal corresponding to R, G, B and the second gray scale signal corresponding to W, and use the gray scale signal corresponding to R, G, B in the image to be displayed after re-determination as the second target gray scale signal.
(2) And taking the first preset signal as a second target gray scale signal of the compensation photon pixel.
The gray scale voltage corresponding to the first preset signal is zero or negative voltage, so that the second target gray scale signal can not drive the compensation photon pixel to emit light.
S105: and outputting a first target gray scale signal to the primary color photon pixel, and outputting a second target gray scale signal to the compensation photon pixel to display the picture to be displayed.
Different from the prior art, the image display method provided in this embodiment obtains the image gray-scale value of the image to be displayed, and determines whether the image gray-scale value is smaller than a first preset threshold, if so, then obtaining a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in the picture to be displayed, then determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal, then outputting the first target gray scale signal to the primary color photon pixel and outputting the second target gray scale signal to the compensation photon pixel, the display panel with the RGBW pixel structure can improve the color purity, saturation and contrast when displaying low gray scale images, is beneficial to presenting higher resolution, and improves the image quality and market competitiveness of products.
Referring to fig. 2, fig. 2 is a second flow chart of a frame display method according to an embodiment of the present disclosure, which is applied to a display panel, where the display panel includes a plurality of pixels arranged in an array, each pixel includes a primary photon pixel and a compensation photon pixel, and the specific flow chart of the frame display method may include the following steps:
s201: and acquiring a picture gray scale value of a picture to be displayed.
Optionally, the display panel obtains a frame gray-scale value of the to-be-displayed frame from the source driver IC, where the frame gray-scale value is a result of an overall combination of gray-scale values of each pixel in the to-be-displayed frame, and reflects an overall brightness condition of the to-be-displayed frame.
S202: and judging whether the gray scale value of the picture is smaller than a first preset threshold value, if so, executing a subordinate step S203, and if not, displaying the picture to be displayed according to the existing method.
The first preset threshold is used for judging the gray scale level of the picture to be displayed, if the gray scale value of the picture is smaller than the first preset threshold, the picture to be displayed is a first-level low gray scale image, and if the gray scale value of the picture is not smaller than the first preset threshold, the picture to be displayed is a high gray scale image.
In this embodiment, the first preset threshold is set based on the maximum screen gray scale value of the display panel, for example, when the maximum screen gray scale value of the display panel is 500, the first preset threshold may be set to 10. Wherein, the maximum frame gray scale value can be obtained from the source driving IC terminal.
S203: and acquiring a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in a picture to be displayed.
Specifically, the display panel includes a plurality of scan lines arranged in a row direction and a plurality of data lines arranged in a column direction, wherein the primary color photonic pixels and the compensation photonic pixels are connected to the data lines.
If the gray scale value of the picture to be displayed is smaller than a first preset threshold value, namely the picture to be displayed is a first-level low-gray-scale image, a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in the picture to be displayed, which are input from the outside, are obtained, wherein the first gray scale signal and the second gray scale signal respectively correspond to gray scale voltages output to the primary color photon pixel and the compensation photon pixel by a data line so as to drive the primary color photon pixel and the compensation photon pixel to emit light.
S204: and judging whether the frame gray-scale value is smaller than a second preset threshold value, wherein the second preset threshold value is smaller than the first preset threshold value, if not, sequentially executing subordinate steps S205, S206 and S207, and if so, sequentially executing subordinate steps S208, S209 and S207.
The second preset threshold is used for judging the gray scale level of the picture to be displayed, if the picture gray scale value is smaller than the second preset threshold, the picture to be displayed is a second-level low-gray-scale image, and if the picture gray scale value is not smaller than the first preset threshold, the picture to be displayed is a first-level low-gray-scale image.
In this embodiment, the second preset threshold is set based on the maximum frame gray scale value of the display panel and the first preset threshold, for example, when the maximum frame gray scale value of the display panel is 500, the first preset threshold is 10, and the second preset threshold can be set to 5.
Further, if the frame gray scale value is not less than the second preset threshold, the following steps S205, S206 and S207 are sequentially performed, and if the frame gray scale value is less than the second preset threshold, the following steps S208, S209 and S207 are sequentially performed. Wherein, S205, S206, S207, S208, and S209 are specifically as follows:
s205: and determining a second target gray scale signal of the compensation photon pixel according to the first preset proportion and the second gray scale signal.
And if the image gray scale value is not less than a second preset threshold value, namely the image to be displayed is a first-level low gray scale image, weakening the second gray scale signal according to a first preset proportion, and taking the weakened second gray scale signal as a second target gray scale signal.
The optimal value of the first preset proportion can be determined through experiments and actual photoelectric performance tests. For example, the first predetermined ratio is 1:2, the maximum frame gray scale value of the display panel is 500, the first predetermined threshold is 10, and the second predetermined threshold is 5, that is, if the frame gray scale value is less than 10 and greater than or equal to 5, the second gray scale signal is reduced to half of the original value, and the gray scale value of the compensation photon pixel in the corresponding frame to be displayed is also reduced to half of the original value.
S206: and determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal.
After the gray scale signal corresponding to the compensation photon pixel in the picture to be displayed is weakened, in order to avoid picture distortion, the gray scale signal corresponding to the primary color photon pixel in the picture to be displayed needs to be re-determined according to the first gray scale signal, the second gray scale signal and the second target gray scale signal, and the gray scale signal corresponding to the primary color photon pixel in the picture to be displayed after re-determination is used as the second target gray scale signal.
S207: and outputting a first target gray scale signal to the primary color photon pixel, and outputting a second target gray scale signal to the compensation photon pixel to display the picture to be displayed.
S208: and determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal and the second gray scale signal.
Specifically, the display panel displays the picture to be displayed by driving the primary color photon pixels to emit light and not driving the compensation photon pixels to emit light. In order to avoid picture distortion, the gray scale signal corresponding to the primary color photon pixel in the picture to be displayed needs to be re-determined according to the first gray scale signal corresponding to the primary color photon pixel in the picture to be displayed and the second gray scale signal corresponding to the compensation photon pixel, and the re-determined gray scale signal corresponding to the primary color photon pixel in the picture to be displayed serves as the second target gray scale signal.
S209: and taking the first preset signal as a second target gray scale signal of the compensation photon pixel.
The gray scale voltage corresponding to the first preset signal is zero or negative voltage, so that the second target gray scale signal can not drive the compensation photon pixel to emit light.
Optionally, referring to fig. 3, S204 may also be:
and judging whether the image gray-scale value is smaller than a second preset threshold value, wherein the second preset threshold value is smaller than the first preset threshold value, if not, sequentially executing subordinate steps S205, S206 and S207, and if so, executing a subordinate step S210. Wherein, S205, S206 and S207 are as described above, and S210 is specifically as follows:
s210: and judging whether the image gray-scale value is smaller than a third preset threshold value, wherein the third preset threshold value is smaller than the second preset threshold value, if not, sequentially executing subordinate steps S211, S206 and S207, and if so, sequentially executing subordinate steps S208, S209 and S207.
The third preset threshold is used for judging the gray scale level of the picture to be displayed, if the picture gray scale value is smaller than the third preset threshold, the picture to be displayed is a third-level low-gray-scale image, and if the picture gray scale value is not smaller than the third preset threshold, the picture to be displayed is a second-level low-gray-scale image.
In this embodiment, the third preset threshold is set based on the maximum screen gray scale value of the display panel, the first preset threshold and the second preset threshold, for example, when the maximum screen gray scale value of the display panel is 120, the first preset threshold is 10, and the second preset threshold is 5. The third preset threshold may be set to 3.
Further, if the frame gray scale value is not less than the third preset threshold, the subordinate steps S211, S206 and S207 are sequentially performed, and if the frame gray scale value is less than the second preset threshold, the subordinate steps S208, S209 and S207 are sequentially performed. Wherein S206, S207, S208, and S209 are as described above, and S211 is specifically as follows:
s211: and determining a second target gray scale signal of the compensation photon pixel according to the second preset proportion and the second gray scale signal.
And if the image gray scale value is not less than a third preset threshold value, namely the image to be displayed is a second-level low-gray-scale image, weakening the second gray scale signal according to a second preset proportion, and taking the weakened second gray scale signal as a second target gray scale signal.
The optimal value of the second preset proportion can be determined through experiments and actual photoelectric performance tests. For example, the second preset ratio is 1:10, the first preset ratio is 1:2, the maximum frame gray scale value of the display panel is 500, the first preset threshold value is 10, the second preset threshold value is 5, and the third preset threshold value is 3, that is, if the frame gray scale value is less than 10 and is greater than or equal to 5, the second gray scale signal is weakened to the original half, the gray scale value of the compensation photon pixel in the corresponding frame to be displayed is also reduced to the original half, if the frame gray scale value is less than 5 and is greater than or equal to 3, the second gray scale signal is weakened to the original one tenth, and the gray scale value of the compensation photon pixel in the corresponding frame to be displayed is also reduced to the original one tenth. Further, if the gray scale value is smaller than 3, the second gray scale signal may be reduced to zero, and the gray scale value of the compensation photon pixel in the corresponding to-be-displayed picture is also reduced to zero, that is, the compensation photon pixel in the to-be-displayed picture is not driven to emit light.
Optionally, in other embodiments, S210 may also be:
judging whether the image gray-scale value is smaller than a third preset threshold value, wherein the third preset threshold value is smaller than the second preset threshold value, if not, sequentially executing the following steps S211, S206 and S207, and if so, sequentially executing the following steps:
(1) judging whether the image gray-scale value is smaller than a fourth preset threshold value, wherein the fourth preset threshold value is smaller than a third preset threshold value;
(2) if not, determining a second target gray scale signal of the compensation photon pixel according to a third preset proportion and the second gray scale signal, and determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal;
(3) if the picture gray scale value is smaller than a third preset threshold value, judging whether the picture gray scale value is smaller than a fifth preset threshold value, wherein the fifth preset threshold value is smaller than a fourth preset threshold value;
(4) if not, determining a second target gray scale signal of the compensation photon pixel according to a fourth preset proportion and the second gray scale signal, and determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal;
by analogy, a plurality of preset thresholds can be set, corresponding to a plurality of low gray scale levels of the picture to be displayed, and the attenuation degrees of the corresponding compensation photon pixel gray scale signals of the picture to be displayed with the low gray scale at different levels are different. The smaller the preset threshold is, the smaller the corresponding preset proportion is. And if the frame gray-scale value is smaller than the minimum preset threshold, the above steps S208, S209 and S207 are sequentially performed to display the frame to be displayed.
Different from the prior art, the image display method provided in this embodiment obtains the image gray-scale value of the image to be displayed, and determines whether the image gray-scale value is smaller than a first preset threshold, if so, then obtaining a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in the picture to be displayed, then determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal, then outputting the first target gray scale signal to the primary color photon pixel and outputting the second target gray scale signal to the compensation photon pixel, the display panel with the RGBW pixel structure can improve the color purity, saturation and contrast when displaying low gray scale images, is beneficial to presenting higher resolution, and improves the image quality and market competitiveness of products.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. The display panel 600 includes: a plurality of pixels (not shown) arranged in an array, a first obtaining module 601, a first judging module 602, a second obtaining module 603, a determining module 604, and an output module 605, wherein:
(1) multiple pixels
Wherein each pixel comprises a primary photon pixel and a compensation photon pixel. Optionally, the primary color photonic pixels include a first primary color photonic pixel, a second primary color photonic pixel, and a third primary color photonic pixel.
(2) First acquisition module 601
The first obtaining module 601 is configured to obtain a frame gray scale value of a frame to be displayed.
The frame gray-scale value is the result of the overall combination of the gray-scale values of the pixels in the frame to be displayed, and reflects the overall brightness condition of the frame to be displayed.
(3) First judging module 602
The first determining module 602 is configured to determine whether the frame gray scale value is smaller than a first preset threshold.
In this embodiment, the first preset threshold is set based on the maximum screen gray scale value of the display panel, for example, when the maximum screen gray scale value of the display panel is 500, the first preset threshold may be set to 10. Wherein, the maximum frame gray scale value can be obtained from the source driving IC terminal.
(4) Second obtaining module 603
The second obtaining module 603 is configured to obtain a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in a to-be-displayed picture when the first determining module 602 determines that the obtained picture gray scale value is smaller than the first preset threshold.
The first gray scale signal and the second gray scale signal respectively correspond to gray scale voltages output to the primary color photon pixel and the compensation photon pixel so as to drive the primary color photon pixel and the compensation photon pixel to emit light.
(5) Determination module 604
The determining module 604 is configured to determine a first target gray scale signal of the primary color photonic pixel and a second target gray scale signal of the compensation photonic pixel according to the first gray scale signal and the second gray scale signal.
(6) Output module 605
The output module 605 is configured to output a first target gray scale signal to the primary color photonic pixel and output a second target gray scale signal to the compensation photonic pixel to display a to-be-displayed picture.
In one embodiment, the determining module 604 may specifically include:
the determining module is used for determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal and the second gray scale signal;
and the second determining unit is used for taking the first preset signal as a second target gray scale signal of the compensation photon pixel.
In another embodiment, the determining module 604 may specifically include:
a first determining unit, configured to determine whether the image gray-scale value is smaller than a second preset threshold when the first determining module 602 determines that the obtained image gray-scale value is smaller than a first preset threshold, where the second preset threshold is smaller than the first preset threshold;
the third determining unit is used for determining a second target gray scale signal of the compensation photon pixel according to the first preset proportion and the second gray scale signal when the first judging unit judges that the obtained picture gray scale value is not smaller than the second preset threshold value;
and the fourth determining unit is used for determining a first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal.
Further, the determining module 604 may further include:
the second judging unit is used for judging whether the picture gray-scale value is smaller than a third preset threshold value when the first judging unit judges that the obtained picture gray-scale value is smaller than a second preset threshold value, and the third preset threshold value is smaller than the second preset threshold value;
and the fifth determining unit is used for determining a second target gray scale signal of the compensation photon pixel according to the second preset proportion and the second gray scale signal when the second judging unit judges that the obtained picture gray scale value is not less than the third preset threshold value.
In a specific implementation, each of the modules or units may be implemented as an independent entity, or may be combined arbitrarily and implemented as one or several entities, and the specific implementation of each of the modules or units may refer to the foregoing method embodiments, which are not described herein again.
In one embodiment, referring to fig. 5, the display panel 600 further includes a plurality of scan lines G1-Gn arranged along the row direction and a plurality of data lines D1-Dm arranged along the column direction, the primary color sub-pixels include red sub-pixels R, green sub-pixels G and blue sub-pixels B, the compensation sub-pixels are white sub-pixels W, and R, G, B, W is divided into R columns, G columns, B columns and W columns arranged in sequence and adjacently and periodically along a direction from one end of the scan line to the other end, wherein each W column corresponds to one data line, so that when the display panel displays a gray scale image, the gray scale signals of W can be independently controlled.
In another embodiment, referring to fig. 6, the display panel 600 further includes a plurality of scan lines G1-Gn arranged along the row direction and a plurality of data lines D1-Dm arranged along the column direction, the primary color sub-pixels include a red sub-pixel R, a green sub-pixel G and a blue sub-pixel B, the compensation sub-pixels are white sub-pixels W, and R, G, B, W of each pixel are arranged in two adjacent rows and two columns, wherein the column where W is located corresponds to the two data lines, so that the display panel can independently control the gray scale signals of W when displaying the gray scale image.
Different from the prior art, the display panel provided by the application obtains the frame gray-scale value of the frame to be displayed, and judges whether the frame gray-scale value is smaller than a first preset threshold value, if so, then obtaining a first gray scale signal of a primary color photon pixel and a second gray scale signal of a compensation photon pixel in the picture to be displayed, then determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal, then outputting the first target gray scale signal to the primary color photon pixel and outputting the second target gray scale signal to the compensation photon pixel, the display panel with the RGBW pixel structure can improve the color purity, saturation and contrast when displaying low gray scale images, is beneficial to presenting higher resolution, and improves the image quality and market competitiveness of products.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An image display method applied to a display panel, wherein the display panel comprises a plurality of pixels arranged in an array, each of the pixels comprises a primary photon pixel and a compensation photon pixel, and the method comprises:
acquiring a picture gray scale value of a picture to be displayed;
judging whether the picture gray-scale value is smaller than a first preset threshold value or not;
if so, acquiring a first gray scale signal of the primary color photon pixel and a second gray scale signal of the compensation photon pixel in the picture to be displayed;
determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal;
and outputting the first target gray scale signal to the primary color photon pixel, and outputting the second target gray scale signal to the compensation photon pixel to display the picture to be displayed.
2. The image display method according to claim 1, wherein the step of determining the first target gray scale signal of the primary color photonic pixel and the second target gray scale signal of the compensation photonic pixel according to the first gray scale signal and the second gray scale signal specifically comprises:
determining the first target gray scale signal of the primary color photon pixel according to the first gray scale signal and the second gray scale signal;
and taking a first preset signal as the second target gray scale signal of the compensation photon pixel.
3. The image display method according to claim 1, wherein the step of determining the first target gray scale signal of the primary color photonic pixel and the second target gray scale signal of the compensation photonic pixel according to the first gray scale signal and the second gray scale signal specifically comprises:
judging whether the picture gray-scale value is smaller than a second preset threshold value, wherein the second preset threshold value is smaller than the first preset threshold value;
if not, determining the second target gray scale signal of the compensation photon pixel according to a first preset proportion and the second gray scale signal;
and determining the first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal.
4. The image display method according to claim 3, wherein after the step of determining whether the image gray-scale value is smaller than a second preset threshold, the method further comprises:
if the picture gray scale value is smaller than the second preset threshold, judging whether the picture gray scale value is smaller than a third preset threshold, wherein the third preset threshold is smaller than the second preset threshold;
if not, determining the second target gray scale signal of the compensation photon pixel according to a second preset proportion and the second gray scale signal;
and determining the first target gray scale signal of the primary color photon pixel according to the first gray scale signal, the second gray scale signal and the second target gray scale signal.
5. The picture display method according to claim 1, wherein the primary-color photonic pixels comprise a red-light subpixel, a green-light subpixel, and a blue-light subpixel, the compensation photonic pixel is a white-light subpixel,
the step of outputting the first target gray scale signal to the primary color photonic pixel and outputting the second target gray scale signal to the compensation photonic pixel to display the to-be-displayed picture specifically includes:
and outputting the first target gray scale signal to the red light sub-pixel, the green light sub-pixel and the blue light sub-pixel, and outputting the second target gray scale signal to the white light sub-pixel to display the picture to be displayed.
6. A display panel, comprising:
a plurality of pixels arranged in an array, each of the pixels comprising a primary photon pixel and a compensation photon pixel;
the first acquisition module is used for acquiring the picture gray scale value of a picture to be displayed;
the first judgment module is used for judging whether the picture gray-scale value is smaller than a first preset threshold value or not;
the second obtaining module is used for obtaining a first gray scale signal of the primary color photon pixel and a second gray scale signal of the compensation photon pixel in the picture to be displayed when the first judging module judges that the obtained picture gray scale value is smaller than the first preset threshold value;
the determining module is used for determining a first target gray scale signal of the primary color photon pixel and a second target gray scale signal of the compensation photon pixel according to the first gray scale signal and the second gray scale signal;
and the output module is used for outputting the first target gray scale signal to the primary color photon pixel and outputting the second target gray scale signal to the compensation photon pixel so as to display the picture to be displayed.
7. The display panel according to claim 6, wherein the determination module comprises:
the first determining unit is used for determining the first target gray scale signal of the primary color photon pixel according to the first gray scale signal and the second gray scale signal;
and the second determining unit is used for taking a first preset signal as the second target gray scale signal of the compensation photon pixel.
8. The display panel according to claim 6, wherein the determination module comprises:
the first judging unit is used for judging whether the picture gray-scale value is smaller than a second preset threshold value when the first judging module judges that the obtained picture gray-scale value is smaller than the first preset threshold value, and the second preset threshold value is smaller than the first preset threshold value;
a third determining unit, configured to determine the second target gray scale signal of the compensation photon pixel according to the first preset ratio and the second gray scale signal when the first determining unit determines that the image gray scale value is not smaller than the second preset threshold;
a fourth determining unit, configured to determine the first target grayscale signal of the primary color photonic pixel according to the first grayscale signal, the second grayscale signal, and the second target grayscale signal.
9. The display panel of claim 8, wherein the determining module further comprises:
a second judging unit, configured to, when the first judging unit judges that the obtained image gray-scale value is smaller than the second preset threshold, judge whether the image gray-scale value is smaller than a third preset threshold, where the third preset threshold is smaller than the second preset threshold;
and a fifth determining unit, configured to determine the second target gray-scale signal of the compensation photonic pixel according to a second preset ratio and the second gray-scale signal when the second determining unit determines that the image gray-scale value is not smaller than the third preset threshold.
10. The display panel according to claim 6, wherein the display panel further comprises a plurality of scan lines arranged along a row direction and a plurality of data lines arranged along a column direction, the primary color photonic pixels comprise a first primary color photonic pixel, a second primary color photonic pixel and a third primary color photonic pixel, and the first primary color photonic pixel, the second primary color photonic pixel, the third primary color photonic pixel and the compensation photonic pixel are divided into a first primary color photonic pixel column, a second primary color photonic pixel column, a third primary color photonic pixel column and a compensation photonic pixel column which are periodically arranged and adjacently arranged in sequence along a direction from one end to the other end of the scan lines, wherein each of the compensation photonic pixel columns corresponds to one of the data lines.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773376.9A CN110599938B (en) | 2019-08-21 | 2019-08-21 | Display panel and picture display method |
| PCT/CN2019/105259 WO2021031255A1 (en) | 2019-08-21 | 2019-09-11 | Display panel and image display method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773376.9A CN110599938B (en) | 2019-08-21 | 2019-08-21 | Display panel and picture display method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110599938A true CN110599938A (en) | 2019-12-20 |
| CN110599938B CN110599938B (en) | 2021-05-07 |
Family
ID=68854971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910773376.9A Active CN110599938B (en) | 2019-08-21 | 2019-08-21 | Display panel and picture display method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110599938B (en) |
| WO (1) | WO2021031255A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312127A (en) * | 2020-02-24 | 2020-06-19 | 北京京东方光电科技有限公司 | Display picture adjusting method and device of rotary display screen and rotary display screen |
| CN112102732A (en) * | 2020-09-23 | 2020-12-18 | 合肥维信诺科技有限公司 | Display module, display device and display compensation method of display module |
| CN113066419A (en) * | 2021-03-29 | 2021-07-02 | 联想(北京)有限公司 | Pixel compensation implementation method and related equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080033080A (en) * | 2006-10-10 | 2008-04-16 | 가부시키가이샤 히타치 디스프레이즈 | Display device |
| CN103996382A (en) * | 2014-05-07 | 2014-08-20 | 成都京东方光电科技有限公司 | Method and system for improving RGBW-image saturation |
| CN104575422A (en) * | 2014-12-29 | 2015-04-29 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and driving method thereof |
| CN106328037A (en) * | 2016-10-14 | 2017-01-11 | 深圳市华星光电技术有限公司 | Drive method of four-color display |
| CN109360530A (en) * | 2018-10-30 | 2019-02-19 | 武汉华星光电技术有限公司 | Liquid crystal display device and its method for controlling backlight thereof |
| CN110085155A (en) * | 2018-01-25 | 2019-08-02 | 奇景光电股份有限公司 | For carrying out the method and device of display control to a display panel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3722740B2 (en) * | 2001-11-05 | 2005-11-30 | 三菱電機株式会社 | Video processing apparatus and video processing method |
| CA2669367A1 (en) * | 2009-06-16 | 2010-12-16 | Ignis Innovation Inc | Compensation technique for color shift in displays |
| US8896641B2 (en) * | 2011-06-01 | 2014-11-25 | Lg Display Co., Ltd. | Organic light emitting diode display device and method of driving the same |
| CN105528993B (en) * | 2013-11-08 | 2018-10-19 | 青岛海信电器股份有限公司 | A kind of method and device of adjustment OLED display pixel |
| KR102119697B1 (en) * | 2013-12-30 | 2020-06-05 | 엘지디스플레이 주식회사 | Driving method of organic light emitting diode display device |
| US20150371605A1 (en) * | 2014-06-23 | 2015-12-24 | Apple Inc. | Pixel Mapping and Rendering Methods for Displays with White Subpixels |
| CN104299568B (en) * | 2014-10-23 | 2016-08-17 | 京东方科技集团股份有限公司 | The image display control method of a kind of WOLED display device and device, display device |
-
2019
- 2019-08-21 CN CN201910773376.9A patent/CN110599938B/en active Active
- 2019-09-11 WO PCT/CN2019/105259 patent/WO2021031255A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080033080A (en) * | 2006-10-10 | 2008-04-16 | 가부시키가이샤 히타치 디스프레이즈 | Display device |
| CN103996382A (en) * | 2014-05-07 | 2014-08-20 | 成都京东方光电科技有限公司 | Method and system for improving RGBW-image saturation |
| CN104575422A (en) * | 2014-12-29 | 2015-04-29 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and driving method thereof |
| CN106328037A (en) * | 2016-10-14 | 2017-01-11 | 深圳市华星光电技术有限公司 | Drive method of four-color display |
| CN110085155A (en) * | 2018-01-25 | 2019-08-02 | 奇景光电股份有限公司 | For carrying out the method and device of display control to a display panel |
| CN109360530A (en) * | 2018-10-30 | 2019-02-19 | 武汉华星光电技术有限公司 | Liquid crystal display device and its method for controlling backlight thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312127A (en) * | 2020-02-24 | 2020-06-19 | 北京京东方光电科技有限公司 | Display picture adjusting method and device of rotary display screen and rotary display screen |
| CN111312127B (en) * | 2020-02-24 | 2023-07-28 | 北京京东方光电科技有限公司 | Display picture adjusting method and device of rotary display screen and rotary display screen |
| CN112102732A (en) * | 2020-09-23 | 2020-12-18 | 合肥维信诺科技有限公司 | Display module, display device and display compensation method of display module |
| CN113066419A (en) * | 2021-03-29 | 2021-07-02 | 联想(北京)有限公司 | Pixel compensation implementation method and related equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021031255A1 (en) | 2021-02-25 |
| CN110599938B (en) | 2021-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10839759B2 (en) | Signal processing method and display device | |
| KR102194571B1 (en) | Method of data conversion and data converter | |
| CN102063879B (en) | Liquid crystal display with dynamic backlight control and its drive method | |
| TWI469082B (en) | Image signal processing method | |
| WO2022048423A1 (en) | Display compensation information acquisition method and apparatus, and display compensation method and apparatus | |
| KR101117980B1 (en) | Apparatus and method for driving liquid crystal display device | |
| KR101399304B1 (en) | Liquid crystal display device and method of driving the same | |
| EP3016369B1 (en) | Data conversion unit and method for data conversion for display device | |
| US8334882B2 (en) | Liquid crystal display apparatus | |
| TWI421843B (en) | Liquid crystal display device and method of driving the same | |
| US9799281B2 (en) | Liquid crystal panel and driving method for the same | |
| CN106023939B (en) | Liquid Crystal Display And Method For Driving | |
| CN110599938B (en) | Display panel and picture display method | |
| US8648886B2 (en) | Liquid crystal display device and driving method thereof | |
| KR101992103B1 (en) | Liquid crystal display and driving method of the same | |
| WO2022057495A1 (en) | Grayscale data determination method and apparatus, and device and screen drive board | |
| US10621930B2 (en) | Image processing method and image processing device for reducing color shift | |
| KR20130074374A (en) | Display device and method for driving the same | |
| RU2656700C1 (en) | Liquid crystal display device and method of control method thereof | |
| CN114530129A (en) | Display panel driving method, display panel driving device and display equipment | |
| CN106531101A (en) | Display panel and display device having display panel | |
| KR102490628B1 (en) | Image processing method, image processing module and display device using the same | |
| US11348552B2 (en) | Method for determining data processing sequence, display apparatus and display method thereof | |
| KR20080023414A (en) | Driving circuit for image display device and method for driving the same | |
| KR102520697B1 (en) | Display device using subpixel rendering and image processing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |