A pixel compensation circuit, a driving method thereof, a display panel and a display device

一种驱动方法、补偿电路的技术，应用在电路、电气元件、静态指示器等方向

Active Publication Date: 2021-04-23
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, a pixel compensation circuit that can compensate the threshold voltage of the driving transistor is generally used to eliminate the influence of the threshold voltage of the driving transistor and its mobility on the uniformity of light emission; there are few pixel compensations used to eliminate the influence of the aging of the light emitting device on the uniformity of light emission circuit

Method used

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  • A pixel compensation circuit, a driving method thereof, a display panel and a display device
  • A pixel compensation circuit, a driving method thereof, a display panel and a display device
  • A pixel compensation circuit, a driving method thereof, a display panel and a display device

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Embodiment Construction

[0035] Specific implementations of the pixel compensation 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. It should be noted that the embodiments described in this specification are only some of the embodiments of the present invention, 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 making creative efforts belong to the protection scope of the present invention.

[0036] A pixel compensation circuit provided by an embodiment of the present invention, such as Figure 1a and Figure 1b As shown, it includes: a reset module 101, a data writing module 102, a compensation module 103, a driving module 104 and a light emitting device EL;

[0037] The first control terminal of the reset module 101 is connected to the first control signal term...

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Abstract

The invention discloses a pixel compensation circuit, its driving method, a display panel and a display device. The pixel compensation circuit includes: a reset module, a data writing module, a compensation module, a driving module and a light emitting device. The threshold voltage of the light-emitting device is provided to the driving module through the compensation module. When the light-emitting device ages, its threshold voltage will increase, so that the driving module can provide a larger current to the light-emitting device when driving the light-emitting device to emit light. The brightness of the light-emitting device in the aging area is enhanced, and the problem of uneven light emission of the display panel is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel compensation circuit, a driving method thereof, a display panel and a display device. Background technique [0002] Organic electroluminescent display panel (Organic Light Emitting Diode, OLED) is one of the hotspots in the field of flat display panel research today. Compared with liquid crystal display panel (Liquid Crystal Display, LCD), OLED display panel has low energy consumption and low production cost. , self-illumination, wide viewing angle, and fast response speed. At present, in the display fields of mobile phones and digital cameras, OLED display panels have begun to replace traditional LCD display panels, and are expected to become the mainstream choice for next-generation display panels. [0003] The uniformity of the light emission of the OLED display panel mainly depends on the driving transistor part and the light emitting device part. In the prior art, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3291G09G3/3258
CPCG09G3/3258G09G3/3291G09G2320/0233G09G3/3233G09G2300/0852G09G2300/0861G09G2310/0251G09G2320/0295G09G2320/043G09G3/3241G09G2320/0204H10K59/1216
Inventor 袁志东李永谦袁粲李蒙冯雪欢蔡振飞
Owner BOE TECH GRP CO LTD
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