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Shifting register and LCD

A shift register, shift register unit technology, applied in the direction of static memory, static indicator, digital memory information, etc., can solve the problem of overlapping output signals of the shift register, and achieve the effect of avoiding chromatic aberration

Active Publication Date: 2009-03-18
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to solve the above-mentioned problem of shift register output signal overlap, it is necessary to provide a shift register that avoids output signal overlap

Method used

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  • Shifting register and LCD
  • Shifting register and LCD
  • Shifting register and LCD

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Experimental program
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Embodiment Construction

[0025] see image 3 , is a structural frame diagram of a preferred embodiment of the shift register of the present invention. The shift register 20 includes a plurality of shift register units with the same circuit structure, and the plurality of shift register units are connected in series sequentially to receive the first clock signal CLK provided by the external circuit and the clock signal inverted to the first clock signal CLK in sequence. The second clock signal CLKB, the high level signal VGH and the low level signal VGL. Each shift register unit is composed of a plurality of NMOS transistors, and each NMOS transistor includes a gate, a source and a drain. Now take the first shift register unit 21 and its adjacent second shift register unit 22 as an example to illustrate the connection relationship of the shift register 20. The first shift register unit 21 includes an input signal terminal S TV, a A first output terminal VOUT1 and a second output terminal VOUT2. The ...

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Abstract

The invention relates to a shift register and a liquid crystal display using the shift register. The liquid crystal display comprises a liquid crystal panel, a data driving circuit and a scan driving circuit, wherein the data driving circuit and the scan driving circuit comprise the shift register, each shift register comprises a plurality of shift register units, clock signals which are received by two adjacent shift registers are reverse, output signal of a front shift register unit is an input signal of a next shift register unit, and each shift register unit comprises a signal output circuit, a signal input circuit and a logic circuit. The shift register and the liquid crystal display and a driving method of the shift register have no interference to output signals.

Description

technical field [0001] The invention relates to a shift register and a liquid crystal display using the shift register. Background technique [0002] At present, a thin film transistor (Thin Film Transistor, TFT) liquid crystal display has gradually become a standard output device of various digital products. However, it needs to design an appropriate driving circuit to ensure its stable operation. [0003] Generally, a liquid crystal display driving circuit includes a data driving circuit and a scanning driving circuit. The data driving circuit is used to control the display brightness of each pixel unit, and the scanning driving circuit is used to control the turn-on and cut-off of the thin film transistor. Both driving circuits use a shift register as a core circuit unit. Usually, the shift register is composed of a plurality of shift register units connected in series, and the output signal of the previous shift register unit is the input signal of the latter shift reg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C19/00G02F1/133
CPCG11C19/28G09G3/3688G09G2310/0286G09G3/3677
Inventor 江建学陈思孝
Owner INNOCOM TECH (SHENZHEN) CO LTD
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