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Display driving circuit, display driving method and display device

A display drive and circuit technology, applied in the field of AMOLED display, can solve problems such as characteristic drift, affecting image display effect, AMOLED screen aging, etc.

Active Publication Date: 2018-12-07
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, with the extension of the working time of the AMOLED screen, the AMOLED screen will age, and its characteristics will drift to a certain extent, which will affect the effect of image display

Method used

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  • Display driving circuit, display driving method and display device
  • Display driving circuit, display driving method and display device
  • Display driving circuit, display driving method and display device

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Embodiment Construction

[0053] In order to better understand the above objects, features and advantages of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0054] In the following description, a lot of specific details are set forth to facilitate a full understanding of the present invention, and the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...

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Abstract

The invention provides a display driving circuit, a display driving method and a display device. The display driving method comprises the steps of: performing a timing operation on an operating stateof a display screen, and storing a corresponding timing result in an operating characteristic memory; acquiring a corresponding operating time length of a display according to the timing result; acquiring the operating time length, and determining whether a correction operation needs to be performed on a gamma lookup table; acquiring a corresponding contrast gamma value from an operating characteristic table according to the operating time length when the gamma lookup table needs to be corrected; and calculating a pre-compensation value corresponding to each pixel value according to the contrast gamma value, and updating the gamma lookup table. The display driving circuit, the display driving method and the display device select the corresponding gamma value through calculating the operating time length of the display screen, and can correct the original gamma lookup table according to the corresponding gamma value when the original gamma lookup table needs to be corrected, thereby being conductive to reducing the insufficient effect of image display caused by screen aging.

Description

technical field [0001] The invention relates to the field of AMOLED display technology, in particular to an AMOLED display driving circuit, a display driving method and a display device. Background technique [0002] This section is intended to provide a background or context for implementations of the invention that are set forth in the claims and detailed description. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] Today, mobile phones are the most commonly used electronic products for the public. In order to make mobile phone display screens have better display effects, AMOLED display screens have been more and more widely used. The AMOLED display driver chip (Driver IC), usually called the driver IC, has played an extremely critical role. [0004] However, with the extension of the working time of the AMOLED screen, the AMOLED screen will age, and its characteristics will drift to a certain extent, which will affect the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0276
Inventor 贾晨王自强张春权磊尹勇生王志华
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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