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Image display system

A display system and image display technology, applied to static indicators, static memory, instruments, etc., can solve the problem of expensive integrated circuits for special applications

Active Publication Date: 2010-01-06
TPO DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, ASICs used to provide clocks to PMOS shift registers will be more expensive due to the more control clocks

Method used

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Examples

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Embodiment Construction

[0029] The present invention provides a display system with a signal driving circuit. figure 2 is an example of a signal drive circuit. As shown in the figure, the signal driving circuit 200 includes four shift registers 20_1 to 20_4 connected in series. Although only four shift registers are included in this embodiment, it is not intended to limit the present invention, and the present invention is also applicable to other numbers of shift registers. the shift register. Each shift register includes a first control terminal C1, a second control terminal C2, a third control terminal C3, an input terminal IN and an output terminal OUT. The shift registers 20_1 - 20_4 are controlled by the first clock CLK1 and the second clock CLK2 to sequentially output corresponding driving clocks according to the start clock STP. It should be noted that the first clock CLK1 and the second clock CLK2 are not anti-phase signals, but there is a phase difference between them.

[0030] In this ...

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PUM

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Abstract

Systems for displaying images are provided. In this regard, a representative system incorporates a signal driving circuit that includes a plurality of PMOS shift registers connected in series and controlled only by a first clock signal and a second clock signal, wherein the PMOS shift registers are operative to output corresponding driving pulses in turn after receiving a start pulse.

Description

technical field [0001] The present invention relates to a display device, in particular to a signal driving circuit applied in a display device. Background technique [0002] Liquid crystal display (LCD) is currently the most advanced display technology due to its high resolution, high color, low power consumption, low voltage requirement, and thinness. Liquid crystal displays have been used in mobile information displays for many years, such as personal digital assistants (PDAs), portable computers and mobile phones, and so on. [0003] In recent years, CMOS shift register circuits are widely used in liquid crystal displays manufactured in low temperature polysilicon processes. However, the CMOS shift register circuit generally requires at least 8 photomasks in the manufacturing process, so the cost will increase. To reduce costs, LCD manufacturers have switched to PMOS-type shift registers that require fewer masks. [0004] figure 1 Shown is a conventional signal drive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/20G02F1/133
CPCG11C19/28G09G2310/0267G09G2310/0286G09G3/20G09G2330/04G11C19/00G09G2310/0275
Inventor 陈志昌邱昌明
Owner TPO DISPLAY