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Liquid crystal display and its bidirectional shift register device

A technology of shift register and shift register, which is applied in the direction of static indicators, instruments, information storage, etc.

Active Publication Date: 2016-09-07
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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  • Liquid crystal display and its bidirectional shift register device
  • Liquid crystal display and its bidirectional shift register device
  • Liquid crystal display and its bidirectional shift register device

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Embodiment Construction

[0044] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In addition, wherever possible, elements / components / symbols with the same reference numerals are used in the drawings and embodiments to represent the same or similar parts.

[0045] figure 1 A system block diagram of a liquid crystal display (liquid crystal display, LCD) 100 according to an exemplary embodiment of the present invention is shown. Please refer to figure 1 The liquid crystal display 100 includes a liquid crystal display panel (LCD panel) 101, a source driver (source driver) 103, a timing controller (timing controller, T-con) 105, and a (back) light source for providing the liquid crystal display panel 101 backlight module (backlight module) 107 .

[0046] In this exemplary embodiment, a display area AA of the liquid crystal display panel 101 has a plurality of pixels arranged in a matrix (indicated ...

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PUM

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Abstract

A liquid crystal display and a bidirectional shift register device thereof. The bidirectional shift register device of the present invention is configured on the substrate of the panel, and it includes multiple stages of shift registers connected in series. Each stage of the shift register includes a precharge unit, a pull-up unit and a pull-down unit. Wherein, the pre-charging unit receives the first preset clock signal and the output of the previous or subsequent shift register, and outputs the charging signal accordingly. The pull-up unit receives the charging signal and the second preset clock signal, and outputs a scanning signal accordingly. The pull-down unit receives the second preset clock signal, the third preset clock signal, and the outputs of the lower two stages or the upper two stages of shift registers, and determines whether to pull down the scanning signal to the reference potential according to the output.

Description

technical field [0001] The invention relates to a plane display technology, and in particular to a liquid crystal display and a shift register device thereof. 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 the 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 that under the condition that the liquid crystal display panel adopts an amorphous silicon (a-Si) The shift register inside the scan driver IC is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C19/28G09G3/36
CPCG09G3/3688G09G2310/0283G09G2310/0291G02F1/13306G11C19/28G09G2310/0286
Inventor 游家华詹建廷柯健专张崇霖
Owner HANNSTAR DISPLAY CORPORATION
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