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Gate driver with simultaneous selection of multiple channels

A gate drive and driver technology, applied in instruments, static indicators, etc., to improve the update rate and achieve the effect of partial screen update

Active Publication Date: 2022-07-12
APLUS SEMICON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, future new displays will focus on the requirements of adjustable refresh rate (Refresh Rate), partially refreshed images, and low power consumption. The traditional scanning operation can no longer meet the above requirements.

Method used

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  • Gate driver with simultaneous selection of multiple channels
  • Gate driver with simultaneous selection of multiple channels
  • Gate driver with simultaneous selection of multiple channels

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Embodiment Construction

[0036] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0037]In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only fo...

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Abstract

The invention belongs to the technical field of gate drivers, and in particular relates to a gate driver capable of simultaneously selecting multiple channels, comprising a channel decoder, multiple gate drive units and multiple level conversion units. The channel decoder is used for generating a plurality of turn-on signals according to a latch signal and a channel number signal. A plurality of gate driving units are coupled to the channel decoder for generating a plurality of gate output signals according to a plurality of conduction signals, a selection signal and an input signal. The plurality of level conversion units are coupled to the plurality of gate driving units for performing voltage conversion according to the plurality of gate output signals. The channel number signal indicates a primary channel number, and the selection signal indicates at least one secondary channel number. The present invention has the advantages that any main gate channel and the relevant at least secondary gate channel can be randomly opened to save power and improve the update rate.

Description

technical field [0001] The invention belongs to the technical field of gate drivers, and in particular relates to a gate driver capable of simultaneously selecting multiple channels. Background technique [0002] A liquid crystal display (Liquid Crystal Display, LCD) includes a timing controller, a gate driver, a source driver, and a display panel, and the display panel includes a plurality of pixel units arranged in a matrix. The gate driver is used to turn on multiple pixel units connected to a gate channel (Gate Channel) or scanning line (Scanning Line), and the source driver is used to turn on a source channel (Source Channel) or data line ( Data Line) multiple pixel units. The timing controller is used to control the gate driver and the source driver to turn on the gate channel and the source channel in sequence, so as to scan a plurality of pixel units arranged in a matrix to update the display image. [0003] The traditional scanning operation of an LCD is performed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3674G09G2310/0264
Inventor 蔡水河王国荣
Owner APLUS SEMICON TECH CO LTD
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