Method, device and electronic device for contrast enhancement of display screen based on parity display
A contrast and display technology, applied in static indicators, instruments, etc., can solve the problems of poor contrast, excessive color bars, and high brightness of the screen on the LED display, so as to improve the contrast, screen display effect, and color bar transition Uniform and solve the effect of excessive color bar
Active Publication Date: 2022-08-05
SHENZHEN LIDING PHOTOELECTRIC TECH
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Problems solved by technology
In the existing technology, due to the influence of the characteristics of the light-emitting chip on the LED display screen, the graying brightness of the screen is too high, usually at 0.2cd / m2, which cannot meet customer needs
In addition, due to the insufficient grayscale accuracy of the current LED display screen, it is difficult to repair the low gray scale of the LED display screen.
[0003] At present, people in the field usually use the method of improving the grayscale accuracy of the LED display screen to deal with this problem, but after the grayscale accuracy of the display screen is improved, the LED display screen will appear excessively poor color bars, jitter, gray jumping, etc., resulting in The contrast of the LED display is poor, especially the poor display effect between the display screens with different frame numbers is more obvious
Method used
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[0052] The specific embodiments disclosed in the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.
[0053] figure 1 It is a flow chart of a method for improving the contrast of a display screen based on parity display according to an exemplary embodiment, such as figure 1 As shown, the method includes:
[0054] In step 101, the to-be-displayed grayscale value of each light point on the LED display screen is determined according to the i-th frame to be displayed.
[0055] For example, as figure 2 As shown, the LED display includes a preset number of square areas (block), each block area is composed of 8 × 8 light points, each block area contains 4 grid areas (grid), each The grid area is composed of 4×4 light points, and each light point is represented ...
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The invention discloses a method, a device and an electronic device for enhancing the contrast of a display screen based on parity display. The method includes: determining a grayscale value to be displayed according to the i-th frame to be displayed and expanding processing, and obtaining an integer part Pi and a fractional part Pj ;Sum the fractional part Pj of the light points in the block area to obtain block.sum; According to the parity of i, the summation information of each block area block.sum, matrixA array and matrixB array, in matrixA array and matrixB array Some light points are selected for display, so as to improve the contrast of the LED display screen corresponding to the image to be displayed in the i-th frame. Different light points can be selected for display according to the odd-numbered and even-numbered frames of the picture to be displayed, and the display rules of odd and even frames are used to make the color bar transition of the displayed picture more uniform and delicate, and the situation of low grayscale jumping gray has been carried out. Repair, effectively solve the problems of excessively poor color bars, jitter, and gray jumping of the LED display, and improve the contrast and screen display effect of the LED display.
Description
technical field [0001] The present invention discloses the technical field of LED display screen contrast, in particular to a display screen contrast enhancement method, device and electronic device based on parity display. Background technique [0002] As a large-scale display device, LED display has the advantages of high brightness, long life, easy use and maintenance, and is widely used in stations, ports, outdoor advertising, large-scale cultural and sports activities and other places because of its rich display effects. . At present, with the continuous development of display technology, people's requirements for the display effect of LED display are getting higher and higher, and there are many factors that affect the display effect of LED display. One of the most important aspects is LED display. The color depth capability (gray level) that can be displayed. Generally, the deeper the color depth (the higher the gray level), the richer the color of the displayed pict...
Claims
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IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 何志民王利文
Owner SHENZHEN LIDING PHOTOELECTRIC TECH