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Gamma voltage correction method and device

A technology of gamma voltage and correction method, which is applied to static indicators, instruments, etc., can solve problems such as too long gamma correction time, achieve the effect of reducing gamma correction time and improving production efficiency

Active Publication Date: 2021-04-27
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a gamma voltage correction method and device, which can solve the problem that the existing gamma correction time is too long, and can improve production efficiency

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  • Gamma voltage correction method and device

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Embodiment Construction

[0046] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0047] At present, the method of gamma voltage correction for AMOLED products is to adjust the gray scale of the display screen of the display module to a certain gray scale, adjust the RGB register value, and adjust the optical parameters of the display screen to the target value; after that, Adjust the gray scale of the display screen of the display module to the gray scale of the next binding point, adjust the RGB register value, adjust the optical parameters of the display screen to the target value, and so on, adjust the brightness of each binding point gray scale, The optical parameters such as color coordinates are adjusted to the corresponding target values ​​one by one. However, the gray scales of the binding points of the curr...

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Abstract

The invention provides a gamma voltage correction method and device, belonging to the field of display technology. Wherein, the gamma voltage correction method includes: dividing the display screen of the display module into N*N areas, where N is an integer greater than 1; selecting N test areas from the N*N areas, and the N The ranks and columns of each test area are different; the gray scale of each test area is adjusted to a binding point gray scale, and the binding point gray scales corresponding to different test areas are different. Input an RGB register initial value for each test area to obtain each test area. An optical parameter of a test area, adjusting the RGB register value of each test area, so that the optical parameter of each test area falls within the error range of the target value of the optical parameter. The technical scheme of the invention can solve the problem of too long time for gamma correction in the prior art, and can improve production efficiency.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gamma voltage correction method and device. Background technique [0002] With the development of AMOLED (Active-matrix organic light emitting diode, active-matrix organic light emitting diode) display technology, more and more electronic products begin to use AMOLED display screens. However, in the production process of AMOLED display, there are still some difficulties to be overcome, one of which is the adjustment of optical parameters of AMOLED screen. [0003] Because the display screen needs to adapt to the sensitivity of the human eye under different brightness levels, and the current AMOLED process is difficult to ensure good inter-chip consistency, therefore, it is necessary to adjust the optical parameters of each AMOLED display screen, that is, each AMOLED display screen Both require gamma voltage correction. [0004] At present, the method of gamma voltage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
Inventor 王中杰董杭
Owner BOE TECH GRP CO LTD