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Gate driving circuit

A gate drive circuit and drive output technology, used in instruments, static indicators, etc., can solve the problem that the overall brightness of the display panel cannot be fine-tuned

Active Publication Date: 2021-09-10
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, the overall brightness of the display panel cannot be fine-tuned

Method used

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  • Gate driving circuit
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Embodiment Construction

[0066] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0067] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art and the present invention, and will not be interpreted as idealized or excessive formal meaning, unless expressly so defined herein.

[0068] It should be understood that although the terms "first", "second", "third" etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, and and / or parts should not be limited b...

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Abstract

The invention discloses a gate driving circuit which comprises a plurality of driving output stages. Each driving output stage comprises a sequence starting block, a sequence driving block, a pulse wave driving block, a turn-on control block and a voltage turn-on block. The sequence starting block receives a light-emitting starting signal and a first clock signal to provide an internal control voltage. The sequence driving block receives a first system voltage, an internal control voltage and a second clock signal to provide a light-emitting sequence signal. The pulse wave driving block receives a first system voltage, a light-emitting sequence signal and a first pulse width modulation signal to provide a light-emitting output signal. The turn-on control block and the voltage turn-on block provide a second system voltage in response to a first system voltage, the light-emitting start signal, the internal control voltage and the first clock signal.

Description

technical field [0001] The present invention relates to a gate driving circuit, and in particular to a gate driving circuit for a self-luminous display panel. Background technique [0002] In recent years, self-luminous displays have risen, among which organic light-emitting diode displays (OLED) and quantum-dot light-emitting diode displays (QLED) are competing for the exclusive position of liquid crystal display (LCD) in display panels, and micro-light-emitting diode (Micro-LED) displays are based on its With many excellent component characteristics, it is expected to become the mainstream of next-generation display technology. [0003] In the self-luminous display, in addition to the gate driving signal for driving the pixel to write data, it further includes a light-emitting driving signal for driving the pixel to emit light. In order to suppress image sticking, the enable period of the gate drive signal and the enable period of the light-emitting drive signal usually d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3225
CPCG09G3/32G09G3/3225G09G2320/0233
Inventor 奚鹏博林振祺谢嘉定庄锦棠叶政男
Owner AU OPTRONICS CORP
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