Scanning circuit and shift registers

A technology of shift registers and scanning circuits, which is applied in static memory, digital memory information, instruments, etc., and can solve problems such as short transmission paths, damage to display panels, and electrostatic discharge

Inactive Publication Date: 2014-09-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the transmission path of this reset signal is usually short, so it is easy to generate electrostatic discharge, which will cause damage to the display panel

Method used

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  • Scanning circuit and shift registers
  • Scanning circuit and shift registers
  • Scanning circuit and shift registers

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Embodiment Construction

[0041] The following will clearly illustrate the spirit of the disclosure with the accompanying drawings and detailed descriptions. After any person skilled in the art understands the preferred embodiments of the disclosure, they can make changes and modifications based on the techniques taught in the disclosure. without departing from the spirit and scope of this disclosure.

[0042] As used herein, "first", "second", ... etc. do not refer to a particular sequence or order, nor are they used to limit the present invention, but are only used to distinguish components or operations described with the same technical terms .

[0043]Regarding the "electrical connection" used herein, it can refer to two or more components that are in direct physical or electrical contact with each other, or indirect physical or electrical contact with each other, and "electrical connection" can also refer to two or more components. Multiple Components Components operate or act on each other.

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PUM

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Abstract

The invention discloses a scanning circuit and shift registers. The scanning circuit comprises a plurality of shift registers. At least one of the shift registers comprises an input circuit, an output circuit, a de-energizing circuit, a first reset circuit and a second reset circuit. The input circuit is used for providing an input voltage to a first node. The output circuit is used for providing an output voltage to an output terminal according to a first frequency signal and potential of the first node. The de-energizing circuit is used for providing a supply voltage to the output terminal according to a second frequency signal. The first reset circuit is used for providing a supply voltage to the first node according to a reset voltage of a second node. The second reset circuit is used for providing a reset voltage to the second node.

Description

technical field [0001] The present invention relates to an electronic circuit. In particular, a scanning circuit and a shift register. Background technique [0002] With the rapid development of electronic technology, display panels have been widely used in people's lives, such as mobile phones or computers. [0003] Generally speaking, a display panel may include a scanning circuit, a data circuit and a plurality of pixels arranged in a matrix. The scan circuit may include multiple stages of shift registers electrically connected in series. The scanning circuit can sequentially generate a plurality of scanning signals through its shift register, and provide these scanning signals to the scanning lines in the pixel array to turn on the pixels column by column. The data circuit can simultaneously generate a plurality of data signals, and provide these data signals to the turned-on pixels, so that the turned-on pixels can update their display states (such as grayscale). In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G11C19/28
Inventor 简灵樱洪义轩范大伟
Owner AU OPTRONICS CORP
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