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Gate driving unit and method, gate driving module, circuit and display device

A gate drive and circuit technology, applied in the fields of gate drive units, circuits, display devices, and gate drive modules, can solve the problems of complex structure of gate drive units, disadvantageous narrow borders, etc.

Active Publication Date: 2019-06-25
HEFEI BOE ZHUOYIN TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a gate drive unit, a method, a gate drive module, a circuit, and a display device, which solve the problem that the structure of the existing gate drive unit is complicated, which is not conducive to realizing a narrow frame, and solves the problems in the prior art. Sequential compensation for a long time will bring the problem of scanning line

Method used

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  • Gate driving unit and method, gate driving module, circuit and display device
  • Gate driving unit and method, gate driving module, circuit and display device
  • Gate driving unit and method, gate driving module, circuit and display device

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specific Embodiment approach

[0123] According to a specific implementation manner, the current-stage drive signal SG(N) may be provided by the gate drive signal output terminal OUT2(N);

Embodiment approach

[0124] According to another specific implementation, when the gate driving unit according to the embodiment of the present invention includes a carry signal output circuit and a carry signal output terminal, the driving signal SG(N) of the current stage can be obtained from the carry signal output terminal supply.

[0125] like figure 2 As shown, the pixel circuit with external compensation function may include a data writing transistor T1, a capacitor Cst, a driving transistor T2, a light-emitting element EL and an external compensation control transistor T3, the gate of T1 is connected to the gate driving signal output end of the corresponding stage, The gate of T3 is connected to the output terminal of the external compensation control signal of the corresponding stage. figure 2 Among them, the data line labeled Data is the data line, the line labeled ELVDD is high level, the line labeled ELVSS is low level, the line labeled SL is the external compensation line, the line...

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Abstract

The invention provides a grid driving unit and method, a grid driving module, a circuit and a display device. The grid driving unit comprises an external compensation control signal output end, a gatedriving signal output end, an external compensation control signal output circuit, a gate drive signal output circuit, a pull-up control circuit and a pull-down node control circuit, the pull-up control circuit is used for controlling an enable signal input by an enable end and a driving signal of the same level; the potential of the first node is controlled; at the potential of the first node, afirst clock signal is input by the first clock signal end; and under the control of a second clock signal input by the second clock signal end and the potential of the pull-down node, the potential of the pull-up control node is controlled, and under the control of the potential of the pull-up control node, the potential of the pull-up node is controlled, so that the potential of the pull-up nodecan be controlled to be an effective voltage in a preset time period in a blank time period. The structure is simple, and the problem of surface line scanning caused by long-time sequential compensation is solved.

Description

technical field [0001] The present invention relates to the technical field of display driving, in particular to a gate driving unit, a method, a gate driving module, a circuit and a display device. Background technique [0002] Existing gate drive units applied to pixel circuits with external compensation functions are usually composed of the following three subcircuits: a gate drive subcircuit for generating gate drive signals, a detection signal generation subcircuit for generating detection signals ( In the blank time period, the potential of the detection signal is an effective voltage, and in the display period, the detection signal is an invalid voltage), and a composite pulse signal of the gate drive signal and the detection signal is output (the composite pulse signal is the external compensation Control signal), the structure of such a circuit is very complicated and cannot meet the requirements of high-resolution narrow borders; at the same time, the existing gate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2310/0267G09G2310/0286G09G2310/08G09G2300/0426G09G2300/08G09G2310/061G09G2320/0233
Inventor 冯雪欢李永谦
Owner HEFEI BOE ZHUOYIN TECH CO LTD