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Compensation method for display panel, compensation device and display device

A technology of display panel and compensation method, which is applied to static indicators, instruments, etc., can solve the problems of low gray-scale loss and poor compensation effect of display panel.

Active Publication Date: 2019-01-15
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a compensation method, a compensation device, and a display device for a display panel, which are used to solve the problem in the prior art that the compensation effect of the display panel at low gray levels is poor, which easily causes serious loss of low gray levels The problem

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  • Compensation method for display panel, compensation device and display device
  • Compensation method for display panel, compensation device and display device
  • Compensation method for display panel, compensation device and display device

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Embodiment Construction

[0055] The specific implementation manners of the display panel compensation method, compensation device and display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0056] An embodiment of the present invention provides a compensation method for a display panel. The display panel includes: a plurality of pixels, and a plurality of pixel circuits corresponding to each pixel; wherein the pixel circuits can be as follows: figure 1 shown;

[0057] The compensation method is as figure 2 As shown, can include:

[0058] S101. Detect the threshold voltage of the driving transistor in each pixel circuit;

[0059] S102. Detect the data voltage corresponding to each pixel when the luminance is maximum;

[0060] S103. For each pixel, calculate the threshold voltage, the data voltage corresponding to the maximum luminous brightness of the pixel, and the normalized luminance corresponding to the...

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Abstract

The invention discloses a compensation method of a display panel, a compensation device and a display device. The compensation method directly detects a threshold voltage and a data voltage corresponding to the maximum brightness of the pixel, so that that threshold voltage, the data voltage corresponding to the pixel maximum brightness and the normalized brightness corresponding to the pixel current input gray scale determine the data voltage when the display panel is currently performing compensation display, which can realize full-screen full-gray scale compensation display of display panel. Compared with the prior art, the method and the devices can effectively improve the problem of poor compensation uniformity caused by the error caused by the value of the threshold voltage calculated by the other two measured values, and can also improve the problem of low gray scale loss caused by inaccurate threshold voltage, thereby improving the compensation effect.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a compensation method, a compensation device and a display device of a display panel. Background technique [0002] With the advancement of display technology, Organic Light Emitting Diode (OLED) is one of the hotspots in the field of flat panel display research today, and more and more Active Matrix Organic Light Emitting Diode (AMOLED) display Panels have entered the market. Compared with traditional thin film transistor liquid crystal display panels (Thin Film Transistor Liquid Crystal Display, TFT LCD), AMOLED has faster response speed, higher contrast ratio and wider viewing angle. [0003] At present, the pixel circuit of AMOLED display panel such as figure 1 As shown, it mainly includes: three transistors T1-T3 and a capacitor C; wherein, the transistor T3 is used as a driving transistor, and the transistor T2 is used as a sensing transistor. The pixel circuit provides ...

Claims

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Application Information

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IPC IPC(8): G09G3/3258
CPCG09G3/3258G09G2320/0271G09G3/3233G09G2320/0238G09G2320/0295G09G2320/043G09G2300/0842G09G3/3291G09G2310/027G09G2320/045G09G2320/0626
Inventor 孟松杨飞
Owner BOE TECH GRP CO LTD
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