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Pixel circuit and driving method and display device thereof

一种像素电路、驱动方法的技术，应用在显示驱动电路领域，能够解决占用栅极扫描线信号时间、像素充电率变差、信号扫描时间变短等问题，达到确保数据写入时间、提高数据写入基点、提高充电率的效果

Active Publication Date: 2014-07-16
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that when such a Dumax design is applied, it will occupy the signal time of the gate scanning line, so that the signal scanning time will be shortened, the pixel charging time will be shortened, and the pixel charging rate will deteriorate, which will seriously affect AMOLED products. display quality of

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

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] The transistors used in the embodiments of the present invention may be thin film transistors or field effect transistors or other devices with the same characteristics. Since the source and drain of the transistors used here are symmetrical, there is no difference between the source and drain. In the embodiment of the present invention, in order to distinguish the two poles of the transistor except the gate, the source is called the first pole, and the ...

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Abstract

The embodiment of the invention provides a pixel circuit and a driving method and a display device of the pixel circuit, and relates to the technical scheme of display drive circuits. The pixel circuit comprises a reset module, a data write-in module, an output module and a precharging module, and the precharging module is respectively connected with a second signal end, a control node and an output module and precharges the control node after resetting is finished and before a grid line input row drives a signal. According to the structure, on the premise of ensuring that the signal is not distorted, the data write-in base point is improved, and the data write-in time is ensured.

Description

technical field [0001] The present invention relates to the technical field of display driving circuits, in particular to a pixel circuit, a driving method thereof, and a display device. Background technique [0002] Organic Light Emitting Diode (OLED), as a current-mode light-emitting device, is increasingly being used because of its characteristics of self-luminescence, fast response, wide viewing angle and being able to be fabricated on flexible substrates. In the field of high-performance display. According to the driving method, OLED can be divided into two types: PMOLED (Passive Matrix Driving OLED, passive matrix driving organic light emitting diode) and AMOLED (Active Matrix Driving OLED, active matrix driving organic light emitting diode). As the size of the traditional PMOLED increases, the driving time of a single pixel usually needs to be reduced, so the transient current needs to be increased, resulting in a significant increase in power consumption. In the AM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3233G09G3/3291
CPCG09G3/3291F02P17/00F02P17/12F23Q23/00G09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/0251G09G2310/061G09G2320/02
Inventor 马占洁
Owner BOE TECH GRP CO LTD