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Pixel circuit, driving method and display device

A pixel circuit and circuit technology, applied in static indicators, instruments, etc., can solve the problems of low gray-scale damage and the inability of display devices to effectively reduce lateral leakage, so as to reduce lateral leakage and improve low-gray damage. effect of phenomenon

Pending Publication Date: 2021-08-24
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a pixel circuit, a driving method and a display device to solve the problem that the existing display device cannot effectively reduce the lateral leakage, resulting in low gray scale damage

Method used

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

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Embodiment Construction

[0047] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0048] The transistors employed in all embodiments of the present invention can be a devices having a triode, a thin film transistor or a field effect tube or other characteristics. In the embodiment of the present invention, it is a pole other than the crystal tubular control electrode, and one is referred to as the first pole, and the other is called the second pole.

[0049]At the actual operation, when the transistor is a triode, the control electrode can be a base, the first pole may be a collector, the second pole can...

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Abstract

The invention provides a pixel circuit, a driving method and a display device. The pixel circuit comprises a light-emitting element, a driving circuit, a first light-emitting control circuit and a first initialization circuit. The first light-emitting control circuit controls the connection or disconnection between the driving circuit and the first electrode of the light-emitting element under the control of a light-emitting control signal; under the control of a first initial control signal, the first initialization circuit disconnect a first initial voltage line and the first electrode of the light-emitting element when the first light-emitting control circuit controls the driving circuit to be connected with the first electrode of the light-emitting element, and keeps, when the first light-emitting control circuit controls the driving circuit to be disconnected from the first electrode of the light-emitting element, a on state under the control of the first initial control signal, and controls the first initial voltage line to write the first initial voltage into the first electrode of the light-emitting element. According to the embodiment of the invention, lateral electric leakage can be effectively reduced, and a low-gray-scale damage phenomenon is improved.

Description

Technical field [0001] The present invention relates to the field, and more particularly to a pixel circuit, a driving method, and a display device. Background technique [0002] AMOLED (active matrix organic light emitting diode) Display device The high purity at the low gray scale is one of the significant advantages of the LCD (liquid crystal display). The AMOLED display includes an anode (anode), a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, a cathode, or the like. Since the hole injection layer and the transport layer can transmit charge, when a certain pixel is emitted, the charge can enter adjacent pixels through the hole injection layer and the transport layer, so that the anode in adjacent pixels will leak electric by conductive layer, this phenomenon Become a lateral leakage. Under the low gray scale, due to the mutual leakage between the pixels, it is difficult to improve when the point...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225G09G3/3258
CPCG09G3/3225G09G3/3258
Inventor 蔡兴瑞张锴魏昕宇宋二龙王刚孙华平
Owner BOE TECH GRP CO LTD
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