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Pixel circuit and driving method thereof, display panel and display device

A technology for pixel circuits and driving modules, applied in static indicators, instruments, etc., can solve problems such as affecting the brightness uniformity of the display panel, the driving module cannot be effectively reset, and the data voltages of different pixel circuits are different, etc., to improve the display. The effect of uniformity, improvement of afterimage phenomenon, and improvement of display uniformity

Active Publication Date: 2021-06-18
HEFEI VISIONOX TECH CO LTD
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Problems solved by technology

[0003] In an OLED display panel, OLED needs to be driven by a pixel circuit. However, the control terminal of the drive module in the current pixel circuit cannot be effectively reset at a high refresh rate, resulting in a difference in the data voltage written to different pixel circuits, which affects the display. Brightness uniformity of the panel

Method used

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  • Pixel circuit and driving method thereof, display panel and display device
  • Pixel circuit and driving method thereof, display panel and display device
  • Pixel circuit and driving method thereof, display panel and display device

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Embodiment Construction

[0040] The characteristics and exemplary embodiments of various aspects of the application will be described in detail below. In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only configured to explain the application, not to limit the application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0041]It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily r...

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Abstract

The invention discloses a pixel circuit and a driving method thereof, a display panel and a display device. The pixel circuit comprises a driving module, a data writing module, a threshold compensation module, a first reset module, a light-emitting control module, a light-emitting module, a second reset module and a storage module, wherein the data writing module is used for writing data voltage into the driving module; the driving module is used for generating driving current; the light-emitting control module is used for transmitting the driving current generated by the driving module to the light-emitting module; the first reset module is used for resetting the control end of the driving module; the threshold compensation module is used for performing threshold compensation on the data voltage written into the driving module; the second reset module is used for resetting the anode of the light-emitting module; the storage module is used for storing the data voltage written into the driving module. According to the embodiment of the invention, the control end of the driving module can be effectively reset, and the display uniformity is improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a pixel circuit and a driving method thereof, a display panel and a display device. Background technique [0002] Organic Light Emitting Diode (OLED) is one of the hot spots in the field of display research today. Compared with Liquid Crystal Display (LCD), OLED display has low energy consumption, low production cost, self-illumination, and wide viewing angle. And fast response speed, etc., at present, OLED display panels have begun to replace traditional LCD display panels in display fields such as mobile phones, PDAs, and digital cameras. [0003] In an OLED display panel, OLED needs to be driven by a pixel circuit. However, the control terminal of the drive module in the current pixel circuit cannot be effectively reset at a high refresh rate, resulting in a difference in the data voltage written to different pixel circuits, which affects the display. Brightness un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0233
Inventor 盖翠丽李俊峰陈发祥丁力栋
Owner HEFEI VISIONOX TECH CO LTD
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