A display method and device

A display method and data display technology, applied in static indicators, instruments, etc., can solve problems such as traces, increase in overall production costs, impact on overall yield, and increase in comprehensive production capacity, so as to reduce mura phenomenon, eliminate horizontal mura, and improve The effect of output yield

Active Publication Date: 2020-04-17
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, AMOLED modules generally have the problem of horizontal mura. Mura means spots, which refers to the uneven brightness of the display, causing various traces.
The mura not only affects the overall visual effect of the module, but also affects the overall yield rate and comprehensive production capacity improvement, which increases the overall production cost, and the solution of the horizontal mura has become the key point of the current yield rate improvement

Method used

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  • A display method and device
  • A display method and device

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Experimental program
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Embodiment 1

[0027] In this embodiment, a display method is provided, which is used to overcome the mura phenomenon when the display is displayed in a low gray scale, and to distinguish the gray scale of a single pixel point for processing, and to determine whether it is necessary to perform mura reduction processing according to the condition of the display screen itself , for the display screen that needs to be processed to reduce mura, execute this method in its drive controller, the flow chart is as follows figure 1 shown, including the following steps:

[0028] S1. Obtain the original gray scale of the current pixel. The grayscale value of the pixel to be displayed can be obtained through the Driver IC (driver chip).

[0029] S2. Determine whether the original grayscale of the pixel is greater than a preset grayscale threshold. Since the mura phenomenon is more obvious when displaying low-grayscale pixels, it is not obvious when displaying high-grayscale pixels. Therefore, only low-...

Embodiment 2

[0039] An embodiment of the present invention also provides a display device for executing the method in Embodiment 1. The structural block diagram of the device is as follows figure 2 shown, including:

[0040] An acquisition unit 01, configured to acquire the original gray scale of the current pixel;

[0041] The judging unit 02 is used to judge whether the original grayscale of the pixel is greater than a preset grayscale threshold, and the preset grayscale threshold is set according to the maximum brightness of the screen and the size of the screen.

[0042] Adjusting the output unit 03, configured to divide the original gray scale into first display data and second display data and display them sequentially if the original gray scale of the pixel is not greater than a preset gray scale threshold, wherein the first The display data is black grayscale display data, and the sum of the brightness of the first display data and the second display data is equal to the brightne...

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Abstract

The invention provides a display method and device, and the method and device are used for reducing the mura phenomenon appearing during display. The method comprises the steps: obtaining an originalgray level of a current pixel, and then determining whether the original gray level of the pixel is greater than a preset gray level threshold or not; dividing the original gray scale into the first display data and second display data for the low gray level pixel if the original gray level of the pixel is not greater than the preset gray level threshold, and sequentially displaying the first display data and second display data, wherein the first display data is black display data, and the sum of the brightness of the first display data and the second display data is equal to the brightness of the original gray level of the pixel. In the scheme, the first display data is black display data, and a black interface enables the user's eyes not to observe the mura phenomenon during black graylevel display, and the brightness of the second display data increases, and the voltage needs to be lowered, wherein the lower the voltage, the more inconspicuous the mura of the type is, thereby achieving the effect of reducing the mura phenomenon, effectively improving or eliminating most of the horizontal mura of a screen, improving the display effect and improving the yield of the module.

Description

technical field [0001] The invention relates to the field of displays, in particular to a display method and device. Background technique [0002] At present, high-definition display has become the development direction of display technology. OLED (Organic Light-Emitting Diode, organic light-emitting semiconductor) has the advantages of self-illumination, wide viewing angle, high contrast, low power consumption, fast response, etc., and has been widely used. AMOLED (Active-matrix organic light emitting diode, active-matrix organic light-emitting diode or active-matrix organic light-emitting diode) is a kind of OLED technology, which uses multi-layer organic compounds to achieve independent R, G, and B three-color light. [0003] In the picture with the same light source and the same background color, the visual perception of different degrees of color difference is called mura. At present, AMOLED modules generally have the problem of horizontal mura. Mura means spots, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0242G09G2320/0257
Inventor 彭兆基朱修剑陈心全
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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