Method and device for compensating brightness of display panel

A display panel, brightness compensation technology, applied in static indicators, instruments, etc., can solve problems such as poor compensation effect and complicated circuit

Active Publication Date: 2017-06-13
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a brightness compensation method and device for a display panel, which are used to solve the problems in the prior art that the circuit of the brightness compensation method is relatively complicated, or the compensation effect is poor

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  • Method and device for compensating brightness of display panel
  • Method and device for compensating brightness of display panel

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Embodiment Construction

[0069] Aiming at the problem that the circuit of the brightness compensation method in the prior art is relatively complicated, or the compensation effect is poor, the embodiments of the present invention provide a method and device for brightness compensation of a display panel.

[0070] The specific implementation manners of the method and device for brightness compensation of a display panel provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The size and shape of each component in the drawings do not reflect the real scale, but are only intended to schematically illustrate the contents of the present invention.

[0071] See figure 1 , figure 1 It is one of the flowcharts of the brightness compensation method of the display panel provided by the embodiment of the present invention. An embodiment of the present invention provides a brightness compensation method for a display panel, including: ...

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Abstract

The invention discloses a method and a device for compensating brightness of a display panel, which are applied to each preset gray-scale value. The method comprises the following steps of inputting of preset gray scales: inputting the same preset gray-scale values into each sub-pixel; obtaining of brightness: obtaining the actual brightness value displayed by each sub-pixel; compensation of grey scales: when the percentage of the actual brightness value deviating from the target brightness value of each sub-pixel is greater than the preset threshold value, determining the compensation gray scale value corresponding to each sub-pixel according to the actual brightness value of each sub-pixel, the target brightness value, and the preset contrast table of gray scale stepping values; inputting of compensation gray scales: inputting the corresponding compensation gray scale value into each sub-pixel; repeating the steps of obtaining the brightness, compensating the gray scale and inputting the compensation gray scale, until the percentage of the actual brightness value deviating from the target brightness value of each sub-pixel is smaller than the preset threshold value. The method has the advantages that by looking up the contrast table, the compensation gray scale corresponding to each sub-pixel is determined; by continuously compensating for multiple times, the target brightness value is approximate, and the brightness compensation result is more reliable.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a brightness compensation method and device for a display panel. Background technique [0002] Under the current manufacturing process conditions, display devices, such as liquid crystal displays (Liquid Crystal Display, LCD), or organic light emitting diode (Organic Light Emitting Diode, OLED) display devices, etc., have spatial and temporal inhomogeneity problems , and as the size of the display device becomes larger, such problems become more and more obvious. Therefore, solving the display non-uniformity of the display device has become one of the indispensable key technologies in mass production. [0003] There are many brightness compensation methods in the prior art, for example, the compensation method of thin film transistor (Thin Film Transistor, TFT) circuit, external voltage and current compensation, or optical compensation, etc. These compensation methods have the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0276G09G2320/0626
Inventor 边青吕博嘉孔祥梓杨斌
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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