Compensation method and device for display panel

A display panel and compensation method technology, applied to static indicators, instruments, etc., can solve problems affecting display effects, achieve accurate compensation results, and improve display effects

Active Publication Date: 2019-03-19
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 display panel
  • Compensation method and device for display panel
  • Compensation method and device for 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] like 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 capacitors...

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Abstract

The invention provides a compensation method and device for a display panel. The display panel comprises multiple sub-pixels, and at least one part of the sub-pixels comprises sensing capacitors. Themethod comprises the steps that a first voltage value and second voltage value of each sensing capacitor are obtained; according to the first voltage value and second voltage value of each sensing capacitor, the temperature variation of the sub-pixel corresponding to each sensing capacitor is obtained; according to the temperature variation of each sub-pixel and a preset corresponding relation between the temperature variation and compensating parameter of each sub-pixel, a value of the compensating parameter of each sub-pixel is determined, and according to the determined values of the compensating parameters, driving voltage of each sub-pixel is compensated. The compensation method and device for the display panel have the advantages that the values of the compensating parameters of thedisplay panel are determined through the temperature variation, when the driving voltage of the display panel is compensated, the influence caused by the temperature change of the display panel is introduced so that compensation results can be more accurate, and the improvement of the display effect is facilitated.

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 Applications(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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