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Shift register, bidirectional shift temporary storage device and liquid crystal display panel using same

A technology of liquid crystal display panels and shift registers, applied in static memory, digital memory information, instruments, etc., to achieve the effect of improving reliability and reducing circuit layout area

Active Publication Date: 2016-12-28
HANNSTAR DISPLAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also because of this, all manufacturers are driving the development technology of liquid crystal display towards more miniaturization and low production cost.

Method used

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  • Shift register, bidirectional shift temporary storage device and liquid crystal display panel using same
  • Shift register, bidirectional shift temporary storage device and liquid crystal display panel using same
  • Shift register, bidirectional shift temporary storage device and liquid crystal display panel using same

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Embodiment Construction

[0036] Embodiments of the present invention provide a shift register, a bidirectional shift temporary storage device, and a liquid crystal display panel using the same, wherein the shift register can use the circuit structure of a dynamic inverter to perform node discharge, and thereby control the output The level of the scanning signal can effectively improve the reliability of the overall bidirectional shift register device. In addition, based on the circuit architecture of the bidirectional shift register device in the embodiment of the present invention, the bidirectional shift register device can use fewer control signals to realize the driving mechanism of forward scanning and reverse scanning, thereby reducing the need for other The circuit layout area of ​​the liquid crystal display panel. In order to make the content of the present invention more comprehensible, the following specific examples are given as examples in which the present invention can indeed be implemen...

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Abstract

A shift register, a bidirectional shift temporary storage device and a liquid crystal display panel using the same. The shift register includes a precharge unit, a pull-up unit and a pull-down unit. The pre-charging unit receives the output of the shift register corresponding to the first stage and the second stage of the shift register, and outputs a pre-charge signal accordingly. The pull-up unit receives the precharge signal and the first input clock signal, and outputs the scan signal accordingly. The pull-down unit is coupled to the pre-charge unit and the pull-up unit and receives the pre-charge signal, the first input clock signal and the second input clock signal to control the level of the scan signal, wherein the first input clock signal and the second input clock signal are mutually invert.

Description

technical field [0001] The invention relates to a plane display technology, and in particular to a shift register, a bidirectional shift temporary storage device and a liquid crystal display panel using the same. Background technique [0002] In recent years, with the vigorous development of semiconductor technology, portable electronic products and flat panel display products are also emerging. Among many types of flat panel displays, Liquid Crystal Display (LCD) has become the mainstream of various display products due to its advantages of low voltage operation, no radiation scattering, light weight and small size. Also because of this, all the manufacturers are driving the development technology of liquid crystal display toward more miniaturization and low production cost. [0003] In order to reduce the production cost of liquid crystal displays, some manufacturers have developed the technology of using the amorphous silicon (a-Si) manufacturing process of the liquid cr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G11C19/28
CPCG09G3/3677G09G2310/0243G09G2310/0286G09G2310/06G11C19/28
Inventor 游家华林松君刘轩辰詹建廷
Owner HANNSTAR DISPLAY CORPORATION
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