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Pixel circuit, driving method thereof and display panel

A pixel circuit and gate drive technology, applied in static indicators, instruments, etc., can solve the problems of poor display performance of display panels, adjust the brightness of light-emitting devices, etc., to improve display performance, increase screen ratio, and improve efficiency. Effect

Pending Publication Date: 2019-08-09
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a pixel circuit, its driving method, and a display panel, which can solve the problem in the related art that the luminous brightness of the light-emitting device cannot be adjusted according to different light intensity environments, and the display performance of the display panel is poor. The technical solution is as follows :

Method used

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

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Embodiment Construction

[0047] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0048] The transistors used in all the embodiments of the present invention can be thin film transistors or field effect transistors or other devices with the same characteristics, and the transistors used in the embodiments of the present invention are mainly switching transistors according to their functions in circuits. Since the source and drain of the switching transistor used here are symmetrical, the source and drain are interchangeable. In the embodiment of the present invention, the source is referred to as the first stage, and the drain is referred to as the second stage. According to the form in the accompanying drawings, it is stipulated that the middle terminal of the transistor is the gate, the signal input terminal...

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Abstract

The invention discloses a pixel circuit, a driving method thereof and a display panel, and belongs to the technical field of display. The pixel circuit comprises a first data writing module used for providing a data signal from a data signal end for a first node under the control of a gate driving signal from a gate driving signal end; a storage module used for controlling the potential of the second node to synchronously change along with the potential of the first node; a driving module used for providing a first power supply signal from the first power supply end for a third node and the second node under the control of the second node and the grid driving signal; a light-emitting control module used for providing a signal from a third node for a light-emitting module under the controlof a first control signal from a first control signal end; and a photosensitive module used for detecting an optical signal in the environment where the pixel circuit is located and controlling the potential of the second node according to the optical signal. According to the application, the display performance of the display panel is improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a pixel circuit, a driving method thereof, and a display panel. Background technique [0002] A display panel generally includes a plurality of pixel units, and each pixel unit includes a light-emitting device and a pixel circuit for supplying current to the light-emitting device. The pixel circuit is at least connected to a data signal terminal, a gate drive signal terminal and a power supply terminal in the display device. [0003] In the related art, the charging process of the pixel circuit can be controlled by providing the gate driving signal to the pixel circuit through the gate driving signal terminal. The charging voltage of the pixel circuit is determined according to the data signal output from the data signal terminal and the power signal output from the power supply terminal. Moreover, the luminous brightness of the light emitting device is determined bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/3208G09G3/3233G09G3/34G09G3/36
CPCG09G3/20G09G3/3208G09G3/3233G09G3/3685G09G3/344
Inventor 晏荣建余兆伟
Owner BOE TECH GRP CO LTD
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