Gray scale compensation circuit and gray scale compensation method

A technology of compensation circuit and gray scale, which is applied in the field of gray scale compensation of gray scale compensation circuit, can solve the problems of affecting the display effect of the display panel and reducing the accuracy of display gray scale verification, so as to achieve accurate compensation, reduce errors, and improve display The effect of precision

Active Publication Date: 2017-08-11
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Application Information

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Problems solved by technology

In this way, the accuracy of display grayscale verification is reduced, thereby affecting the display effect of the display panel

Method used

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  • Gray scale compensation circuit and gray scale compensation method
  • Gray scale compensation circuit and gray scale compensation method
  • Gray scale compensation circuit and gray scale compensation method

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[0016] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the related application, not to limit the application. In addition, it should be noted that, for ease of description, only parts relevant to the present application are shown in the drawings.

[0017] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0018] Please refer to figure 1 , which shows a schematic structural diagram of an embodiment of the gray scale compensation circuit provided in the present application.

[0019] The gray scale compensation circuit of the present application is applied to an organic light emitti...

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Abstract

The invention discloses a gray scale compensation circuit of an organic light emitting display panel and a gray scale compensation method used for the gray scale compensation circuit. The gray scale compensation circuit comprises a signal acquisition unit, a voltage compensation unit, and a gray scale generating unit. The signal acquisition unit is used to convert acquired light emitting current signals of organic light emitting diodes of various organic light emitting diode arrays into data voltage signals. The voltage compensation unit is used to generate a difference voltage based on the data voltage signals transmitted by the signal acquisition unit, and adopts the difference voltage as a compensation voltage, which is provided to the gray scale generating unit. The gray scale generating unit is used to generate voltage values corresponding to the gray scale values of the various organic light emitting diodes based on the compensation voltage, and is used to provide the voltage values to the pixel circuit of the organic light emitting display panel. The gray scale compensation circuit is provided with the signal acquisition unit, the voltage compensation unit, and the gray scale generating unit, and then the display gray scales of the organic light emitting diodes are compensated accurately, and the gray scale compensation precision is improved, and therefore the display effect of the display panel is improved.

Description

technical field [0001] The present invention generally relates to the field of display technology, and in particular to a gray scale compensation circuit of an organic light emitting display panel and a gray scale compensation method applied to the gray scale compensation circuit. Background technique [0002] With the development of display technology, people's requirements for display panels are gradually increasing. In order to improve the accuracy of the displayed gray scale of the organic light emitting display panel, it is usually necessary to install a detection device on the display surface to verify the displayed gray scale of each frame. Existing verification technologies for display grayscales usually use grayscale verification equipment to verify the average grayscale brightness value and color coordinates of the display screen. [0003] However, in the case of low gray-scale brightness of the existing detection equipment, due to the influence of the detection e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3258
CPCG09G3/3258G09G2320/0626
Inventor 黑亚君周井雄
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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