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Pixel circuit, display panel, display device, and driving method of pixel circuit

A technology of a pixel circuit and a driving method, which is applied in the display field and can solve problems such as brightness attenuation of light-emitting devices

Active Publication Date: 2022-07-12
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiments of the present application is to provide a pixel circuit, a display panel, a display device, and a driving method for a pixel circuit to solve the problem of brightness attenuation of light emitting devices

Method used

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  • Pixel circuit, display panel, display device, and driving method of pixel circuit
  • Pixel circuit, display panel, display device, and driving method of pixel circuit
  • Pixel circuit, display panel, display device, and driving method of pixel circuit

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Embodiment Construction

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art based on this application fall within the protection scope of this application.

[0033] In order to solve the problem of luminance attenuation of light-emitting devices, embodiments of the present application provide a pixel circuit, a display panel, a display device, and a driving method for the pixel circuit. Wherein, the pixel circuit includes: a data writing module, a capacitor module, a driving module, a light-emitting control module and a light-emitting device.

[0034] The control end of the data writing module is connected to t...

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Abstract

The embodiments of the present application provide a pixel circuit, a display panel, a display device, and a driving method for the pixel circuit. Connected between the second end of the driving module and the anode of the light-emitting device, the gates of the two transistors of the light-emitting control module are connected to the light-emitting control end, and under the control of the light-emitting control end, the voltage signal of the output end of the driving module is provided to The anode of the light-emitting device connects the cathode of the light-emitting device to the light-emitting control terminal. Through the above arrangement, the reverse bias of the light emitting device is realized, and the reverse current passing through the light emitting device is suppressed, and the purpose of prolonging the service life of the light emitting device can be achieved.

Description

technical field [0001] The present application relates to the field of display technology, and in particular, to a pixel circuit, a display panel, a display device, and a driving method for the pixel circuit. Background technique [0002] OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display panels use OLEDs as pixels to emit light of different brightness. Compared with the traditional thin film transistor liquid crystal display panel, the OLED display panel has faster response speed, higher contrast ratio and wider viewing angle, which is an important development direction of the display panel. [0003] The traditional pixel circuit keeps the OLED in a forward biased state for a long time, and holes accumulate continuously on the interface between the hole transfer layer and the emission layer, which will eventually lead to the attenuation of the OLED brightness. SUMMARY OF THE INVENTION [0004] The purpose of the embodiments of the present applicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225
Inventor 刘伟星秦纬王铁石徐智强郭凯李小龙彭宽军
Owner BOE TECH GRP CO LTD
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