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A pixel circuit, its driving method, display panel and display device

A technology of pixel circuits and electrodes, which is applied in the display field and can solve the problems of devices prone to afterimages, etc.

Active Publication Date: 2021-07-27
BEIJING BOE DISPLAY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a pixel circuit, a driving method thereof, a display panel, and a display device, so as to solve the problem in the prior art that OLED displays are prone to afterimages due to device aging

Method used

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  • A pixel circuit, its driving method, display panel and display device
  • A pixel circuit, its driving method, display panel and display device
  • A pixel circuit, its driving method, display panel and display device

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Embodiment Construction

[0046] Aiming at the problem in the prior art that OLED displays are prone to afterimages due to device aging, embodiments of the present invention provide a pixel circuit, a driving method thereof, a display panel and a display device.

[0047] Specific implementations of the pixel circuit, its driving method, display panel and display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The size and shape of each part in the drawings do not reflect the true scale, but are only intended to schematically illustrate the content of the present invention.

[0048] An embodiment of the present invention provides a pixel circuit, such as image 3 As shown, it includes: a data writing module 11, a switch control module 12, a reset module 13, a lighting control module 14, a first light emitting device L1, a second light emitting device L2, and a driving control module 15;

[0049] The data writing ...

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Abstract

The invention discloses a pixel circuit, a driving method thereof, a display panel and a display device. The pixel circuit includes: a data writing module, a switch control module, a reset module, a light-emitting control module, a first light-emitting device, and a second light-emitting device , and a drive control module; by setting the first light-emitting device and the second light-emitting device, and the second electrode of the first light-emitting device is coupled to the first electrode of the second light-emitting device, the first electrode of the first light-emitting device and the second The second electrode of the light-emitting device is coupled, and through the cooperation of the data writing module, the switch control module, the reset module, the light-emitting control module and the driving control module, the time-sharing display of the first light-emitting device and the second light-emitting device can be controlled, which can avoid Static display for a long time, so as to avoid the afterimage problem of the OLED display, prolong the display life of the OLED display, and improve the display performance of the OLED display.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel circuit, a driving method thereof, a display panel and a display device. Background technique [0002] Organic Light Emitting Diode (OLED) display is one of the hotspots in the field of flat panel display research today. Compared with Liquid Crystal Display (LCD), OLED display has low energy consumption, low production cost, self-illumination, wide Viewing angle and fast response speed etc. advantages. [0003] However, due to device aging and other reasons, OLED displays are prone to afterimages in static display for a long time, refer to figure 1 and figure 2 , figure 1 It is a checkerboard pattern displayed on an OLED display. The brightness of area B is higher than that of area A, and area B remains in a high-brightness state. If the checkerboard pattern is displayed statically for a long time, the luminous ability of area B becomes weaker, and the OLED display s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0257
Inventor 许文鹏董殿正张强黄海琴王海旭林万王雷阳王光兴
Owner BEIJING BOE DISPLAY TECH CO LTD
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