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Gate driver on array unit, gate driver on array circuit and display device

A technology of array substrate rows and driving units, applied in the field of organic light-emitting display, can solve the problems of large voltage drop, high OLED operating voltage, increased power consumption, etc.

Active Publication Date: 2014-11-12
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Traditional passive matrix organic light-emitting display (Passive Matrix OLED) requires a shorter driving time of a single pixel as the display size increases, so it needs to increase the transient current and increase power consumption
At the same time, the application of high current will cause an excessive voltage drop on the ITO (pixel electrode) line, and make the OLED operating voltage too high, thereby reducing its efficiency.

Method used

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  • Gate driver on array unit, gate driver on array circuit and display device
  • Gate driver on array unit, gate driver on array circuit and display device
  • Gate driver on array unit, gate driver on array circuit and display device

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Embodiment Construction

[0051] Compared with AMLCD (Active Matrix Liquid Crystal Display), AMOLED (Active Matrix Organic Light-Emitting Diode) needs to be driven by an increased current, so it is mostly realized by low-temperature polysilicon circuits with greater mobility. In order to compensate the threshold voltage drift problem of polysilicon TFT (thin film transistor), the pixel circuit of AMOLED often needs a corresponding compensation structure, so the pixel circuit structure of AMOLED is more complicated, and correspondingly needs to occupy a larger layout (circuit layout) area.

[0052]The invention provides an array substrate row drive circuit for an active matrix organic light-emitting display with simple structure and stable performance. array substrate row drive unit. Each array substrate row driving unit includes 8 thin film transistors and 2 capacitors. The row driving unit of the array substrate is divided into two stages, the first stage is used for generating conventional gate lin...

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Abstract

The present invention provides an array substrate row driving unit, an array substrate row driving circuit and a display device. The array substrate row driving unit comprises an gate driving module for generating an gate driving signal and an emission control module; the emission control module, connected to the output for the gate driving signal of the gate driving module, for generating an emission control signal for controlling the switching of OLED under control of the gate driving signal, the gate driving signal having an opposite phase to that of the emission control signal.

Description

technical field [0001] The invention relates to the field of organic light-emitting display, in particular to an array substrate row driving unit, an array substrate row driving circuit and a display device. Background technique [0002] Organic light-emitting display diodes (OLEDs) have been increasingly used in high-performance displays due to their advantages such as high brightness, wide viewing angle, and fast response speed. Traditional passive matrix organic light emitting display (Passive Matrix OLED) requires a shorter driving time of a single pixel as the display size increases, and thus needs to increase transient current and increase power consumption. At the same time, the application of high current will cause the voltage drop on the ITO (pixel electrode) line to be too large, and the working voltage of the OLED will be too high, thereby reducing its efficiency. The active matrix organic light-emitting display (Active Matrix OLED) can solve these problems well...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG11C19/28G09G3/3225G09G2300/0861G09G3/3266G09G3/20G09G3/30
Inventor 金泰逵王颖金馝奭
Owner BOE TECH GRP CO LTD
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