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Pixel circuit, drive method of pixel circuit and display device

A pixel circuit and drive module technology, applied in static indicators, instruments, etc., can solve problems that affect product development and display effects, achieve good display effects, and eliminate the effect of booting the flickering phenomenon

Active Publication Date: 2016-06-22
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The startup flickering phenomenon will affect subsequent product development and affect the display effect. Therefore, designing a pixel circuit to eliminate the startup flickering phenomenon caused by the rise of ELVDD has become an urgent technical problem to be solved.

Method used

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  • Pixel circuit, drive method of pixel circuit and display device
  • Pixel circuit, drive method of pixel circuit and display device

Examples

Experimental program
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Effect test

Embodiment 1

[0041] This embodiment provides a pixel circuit, the pixel circuit does not have a startup splash screen, and the display effect is good.

[0042] Such as figure 2 As shown, the pixel circuit includes a writing module 3, a reset module 2, a driving module 1 and a light emitting module 4, wherein:

[0043] The writing module 3 is connected with the scanning signal GATE, the data signal Vdata and the driving module 1, and is used for inputting image data for the driving module 1;

[0044] The reset module 2 is connected to the reset signal REST, the data signal Vdata, the initial voltage Vint and the drive module 1, and is used to reset the drive module 1 and write the data signal to the drive module;

[0045] The driving module 1 is connected with the light emitting control signal EM, the auxiliary light emitting control signal EMB, the high voltage input signal ELVDD and the light emitting module 4, and is used to provide the driving current for the light emitting module 4 a...

Embodiment 2

[0074] This embodiment provides a display device, the display panel includes the pixel circuit in Embodiment 1, and a plurality of pixel circuits are arranged in an array.

[0075] The display device can be any product or component with a display function such as electronic paper, OLED panel, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, etc.

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Abstract

The invention belongs to the technical field of display and particularly relates to a pixel circuit, a drive method of the pixel circuit and a display device.The pixel circuit comprises a write-in module, a reset module, a drive module and a light emitting module.The write-in module is connected with a scanning signal, a data signal and the drive module and used for inputting image data for the drive module.The reset module is connected with a reset signal, a data signal, initial voltage and the drive module and used for resetting the drive module and writing the data signal into the drive module.The drive module is connected with a light emitting control signal, an auxiliary light emitting control signal, a high-voltage input signal and the light emitting module and used for providing drive current for the light-emitting module according to the image data, so that the light emitting module emits light.The pixel circuit eliminates the start-up splash screen phenomenon caused by increase of ELVDD, and the display effect is better.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a pixel circuit, a driving method for the pixel circuit, and a display device. Background technique [0002] The display principle of AMOLED (Active Matrix Organic Light Emission Display, active matrix organic electroluminescent display) is to convert the voltage ELVDD and ELVSS to the two poles of the luminescent material through the pixel circuit, and the current drives the luminescent material to emit light, so as to achieve the purpose of display. In the pixel circuit, the on and off of the depletion mode Thin Film Transistor (DTFT) is usually used to control the presence or absence of the voltage. However, in a certain pixel circuit structure of the AMOLED display panel, there will be a flickering phenomenon at the moment of power-on. . [0003] The reason, such as figure 1 The working characteristics of the depletion-mode thin film transistor are shown, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3241
CPCG09G3/3241
Inventor 杨华玲张光均张昌张志广刘静
Owner BOE TECH GRP CO LTD
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