Compensation method and device for a display panel

A technology of display panel and compensation method, which is applied to static indicators, instruments, etc., can solve problems such as affecting the display effect, and achieve the effect of accurate compensation results and improved display effect.

Active Publication Date: 2021-04-27
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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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 compensation method and device for a display panel to solve the problem that the display effect is affected by temperature changes during the use of the display panel

Method used

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  • Compensation method and device for a display panel
  • Compensation method and device for a display panel
  • Compensation method and device for a display panel

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Embodiment Construction

[0051]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0052] An embodiment of the present invention provides a compensation method for a display panel.

[0053] The display panel includes a plurality of sub-pixels, and each sub-pixel includes a sensing capacitor connected to a sensing line of the sub-pixel.

[0054] Such as figure 1 as shown, figure 1 It is a circuit diagram of a 3T1C external compensation pixel, where 3T means that the number of TFT switches is 3, and 1C means that the number of capacit...

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PUM

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Abstract

The present invention provides a compensation method and device for a display panel. The display panel includes a plurality of sub-pixels, at least some of which include sensing capacitors. The method includes acquiring a first voltage value and a second voltage value of each sensing capacitor; according to each The first voltage value and the second voltage value of the sensing capacitor obtain the temperature variation of the sub-pixel corresponding to each sensing capacitor; according to the temperature variation of each sub-pixel and the preset corresponding relationship between the temperature variation of the sub-pixel and the compensation parameter , determining the value of the compensation parameter of each sub-pixel; and compensating the driving voltage of each sub-pixel according to the determined value of the compensation parameter. In the embodiment of the present invention, the value of the compensation parameter of the display panel is determined by the amount of temperature change. When compensating the driving voltage of the display panel, the influence of the temperature change of the display panel is introduced, which can make the compensation result more accurate and help to improve the performance of the display panel. display effect.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a compensation method and device for a display panel. Background technique [0002] Each sub-pixel of the OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display panel is driven by a TFT (Thin Film Transistor, Thin Film Transistor) to control the driving current flowing into the OLED, thereby controlling the luminance of the OLED. [0003] During implementation, the driving TFT electrical characteristics of the sub-pixels may not be completely consistent due to factors such as process conditions and the like. When the driving voltages of each sub-pixel are consistent, the corresponding driving currents may be different, which will cause differences between the sub-pixels. There is a brightness difference. [0004] An existing external compensation technology is to detect the driving TFT characteristic parameters of each pixel to generate a corrected driving vo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3233G09G3/3291
CPCG09G3/3233G09G3/3291G09G2320/0295G09G2320/045G09G2320/041G09G3/3258G09G3/3275
Inventor 孟松杨飞曹春韦晓龙
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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