Shift register, liquid crystal display device having the shift register and method of driving scan lines using the same

A shift register and scanning line technology, applied in the field of driving scanning lines, can solve the problem of not providing forward shift or backward shift bidirectional shift register, etc.

Active Publication Date: 2006-11-22
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] However, in the shift register of the conventional amorphous silicon TFT LCD device, the shift direction is fixed, and the conve

Method used

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  • Shift register, liquid crystal display device having the shift register and method of driving scan lines using the same
  • Shift register, liquid crystal display device having the shift register and method of driving scan lines using the same
  • Shift register, liquid crystal display device having the shift register and method of driving scan lines using the same

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Embodiment Construction

[0069] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0070] image 3 is an exploded perspective view showing an amorphous silicon thin film transistor LCD according to an exemplary embodiment of the present invention.

[0071] refer to image 3 The liquid crystal display device 100 includes a liquid crystal display panel assembly 110 , a backlight assembly 120 , a chassis 130 and a cover case 140 .

[0072] The liquid crystal display panel assembly 110 includes a liquid crystal display panel 112 , a flexible printed circuit board 116 and an integrated control chip 118 . The liquid crystal display panel 112 includes a TFT substrate 112a and a color filter substrate 112b.

[0073] A display cell array, a data driving circuit, a gate driving circuit and external connection terminals are formed on the TFT substrate 112a. A color filter and a transparent common electrode are formed on the col...

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Abstract

In a bi-directional shift register and a liquid crystal display device having the bi-directional shift register, the shift register further includes a dummy stage for resetting a last stage. The dummy stage is reset by a control signal of the last stage or by the output signal of the dummy stage. Therefore, power consumption and layout area may be reduced. The shift register includes a plurality of stages and two dummy stages, and two selection signals for selecting shift direction is applied to each of the stages.

Description

technical field [0001] The present invention relates to a shift register, a liquid crystal display (LCD) device having the same, and a method of driving a scanning line using the same. Background technique [0002] LCD devices have several advantages over other display devices such as CRT type display devices. In detail, an LCD device can be manufactured with a thinner and lighter structure with lower power consumption and requires a lower driving voltage than other display devices, and it can provide a performance similar to that of a CRT type display device. Image display quality. LCD devices are widely used in various electronic devices. [0003] When a voltage is applied to the liquid crystal molecules, the alignment angle of the liquid crystal molecules is changed, and the light transmittance of the liquid crystal molecules is adjusted, thereby displaying an image. [0004] LCD devices are classified into twisted nematic (TN, twisted nematic) type LCD devices and sup...

Claims

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Application Information

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IPC IPC(8): G09G3/36G11C19/28G02F1/133
CPCG09G3/3677G09G2310/0264G09G2310/0286
Inventor 文胜焕
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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