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Display panel driving time difference determination method and system

A technology of display panel and determination method, applied in static indicators, instruments, etc., can solve the problem of not being able to balance the maximum brightness of the display panel well

Active Publication Date: 2019-08-16
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention at least partly solves the problem that the driving time difference of the existing display panel cannot well balance the highest brightness of the display panel and reduces afterimages, and provides a simple and efficient method for determining the "driving time difference" of the display panel and system to improve the picture quality of the display panel

Method used

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  • Display panel driving time difference determination method and system
  • Display panel driving time difference determination method and system
  • Display panel driving time difference determination method and system

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Experimental program
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Embodiment 1

[0050] see Figures 1 to 5 , this embodiment provides a method for determining a driving time difference of a display panel.

[0051]The display panel to which the method of the present invention is applicable includes a plurality of sub-pixels of different colors, and each sub-pixel includes a drive unit, a first switch, a second switch, a light emitting device, and a storage unit; the control terminal of the first switch is connected to the first control terminal , the first terminal is connected to the data signal terminal, the second terminal is used to write the signal into the control terminal of the drive unit; the control terminal of the second switch is connected to the second control terminal, the first terminal is connected to the sensing terminal, and the second terminal is connected to the The first end of the driving unit is connected to the first end of the light emitting device; the storage unit is connected between the control end of the driving unit and the f...

Embodiment 2

[0099] see Figure 6 , the present embodiment provides a system for determining the driving time difference of a display panel. The display panel 3 includes: a plurality of sub-pixels of different colors, each sub-pixel includes a driving unit, a first switch, a second switch, a light emitting device, and a storage unit; The control terminal of a switch is connected to the first control terminal, the first terminal is connected to the data signal terminal, and the second terminal is connected to the control terminal of the drive unit; the control terminal of the second switch is connected to the second control terminal, and the first terminal is connected to the sensor The terminals are connected, and the second terminal is connected with the first terminal of the driving unit and the first terminal of the light emitting device; the storage unit is connected between the control terminal of the driving unit and the first terminal of the light emitting device;

[0100] The time ...

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Abstract

The invention provides a display panel driving time difference determination method and system, belongs to the technical field of display, and can solve the problems that the highest brightness of thedisplay panel cannot be well balanced and residual images cannot be reduced due to the driving time difference of an existing display panel. The display panel driving time difference determination method comprises the following steps: determining a plurality of candidate time differences; respectively using each candidate time difference to enable the display panel to display a predetermined testpicture, and testing the picture quality of the test picture corresponding to each candidate time difference; and taking the candidate time difference corresponding to the test image with the optimalimage quality as the driving time difference of the display panel.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method and system for determining a driving time difference of a display panel. Background technique [0002] Organic Light-Emitting Diode (OLED) display panels have threshold voltage (Vth) shifts and mobility changes of driving units (such as driving transistors), which further cause afterimage problems, so internal compensation is required. [0003] Take the internal compensation of the pixel circuit of 3T1C as an example, see figure 1 , which includes a drive unit, a first switch, a second switch, a light emitting device, and a storage unit. In the writing phase of each frame of picture, the on-signal is provided to the first control terminal and the second control terminal, and the off-signal is provided to the second control terminal in advance. When it is turned off in advance, the first terminal (point S) of the light-emitting device is charged and the voltage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00G09G3/3208
CPCG09G3/006G09G3/3208G09G2320/0693G09G2320/0233G09G2320/0295G09G3/2003G09G3/3258G09G2320/0646
Inventor 陈伟曹春徐海侠杨飞
Owner BOE TECH GRP CO LTD