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Pixel circuit, driving method, display panel and display device

A pixel circuit and power input technology, which is applied in the field of pixel circuits, driving methods, display panels and display devices, can solve the problems of poor display effect and poor stability of the display panel, and achieve the goal of improving display effect and ensuring stability Effect

Active Publication Date: 2016-06-01
BOE TECH GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a pixel circuit, a driving method, a display panel, and a display device, which are used to solve the problem in the prior art that the stability of the node potential for driving OLED to emit light deteriorates, which makes the display effect of the display panel worse. question

Method used

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

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Embodiment Construction

[0054] The specific implementation manners of the pixel circuit, the driving method, the display panel and the display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0055] An embodiment of the present invention provides a pixel circuit, such as figure 1 As shown, it may include: a writing module 01, a driving module 02, a reset module 03, a conducting module 04, a power input module 05, a first maintaining module 06 and a light emitting device OLED; wherein,

[0056] The control terminal of the writing module 01 is connected to the scanning signal terminal Gate, the input terminal is connected to the data signal terminal Data, and the output terminal is connected to the first node P1; the writing module 01 is used to convert the data signal under the control of the scanning signal terminal Gate The signal input from the terminal Data is written into the first node P1;

[0057] The c...

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Abstract

The invention discloses a pixel circuit, a driving method, a display panel and a display device. In the pixel circuit, a write-in module writes signals on a data signal terminal into a first node; a conduction module conducts the first node and a second node; a power supply input module inputs the signal of a first power supply signal terminal to the second node; a resetting module outputs signals of a reference signal terminal to a third node and a fourth node; a driving module outputs a signal of a second node to the fourth node; a first maintenance module stabilizes the electric levels of the first node and the second node through signals inputted by the first node and the second node, wherein the write-in module, the driving module, the resetting module, the conduction module and the power supply input module finish the corresponding tasks under the control of the corresponding signal terminals and the fact that the luminescent device is driven to illuminate can be realized; and the first maintenance module stabilizes the electric levels of the first node and the second node, guarantees the stability of the electric level of the key node driving the luminescent device to illuminate and improves the display effect of the display panel.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit, a driving method, a display panel and a display device. Background technique [0002] With the advancement of display technology, organic light emitting display (Organic Light Emitting Diode, OLED) is one of the hotspots in the field of flat panel display research today, and more and more organic light emitting diode (Organic Light Emitting Diode, OLED) display panels enter the market Liquid crystal display panel (ThinFilmTransistorLiquidCrystalDisplay, TFTLCD), OLED display panel has faster response speed, higher contrast ratio and wider viewing angle. [0003] In recent years, with the demand for high-resolution display, the pixel size of the OLED display panel is getting smaller and smaller, and the capacitance value of the pixel capacitor in the pixel circuit used to drive the OLED light is getting smaller and smaller, which in turn leads to the node...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208G09G3/3225
CPCG09G3/3208G09G3/3225G09G2300/0819G09G2300/0852G09G2300/0861G09G2320/045G09G3/3233H10K59/131G09G3/3258G09G3/3266G09G3/3275G09G2300/0809
Inventor 马占洁孙拓
Owner BOE TECH GRP CO LTD
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