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Cascaded drive circuit of LCD

A technology of liquid crystal display and driving circuit, applied in static indicators, instruments, nonlinear optics, etc., can solve the problem of high power consumption, and achieve the effect of reducing voltage and power consumption

Inactive Publication Date: 2007-01-10
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the defects existing in the existing tandem liquid crystal display drive circuit, and provide a new tandem liquid crystal display drive circuit, the technical problem to be solved is to make it possible to improve the existing known The disadvantage of excessive power consumption of the serial drive circuit is more suitable for practical use and has industrial application value

Method used

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  • Cascaded drive circuit of LCD
  • Cascaded drive circuit of LCD
  • Cascaded drive circuit of LCD

Examples

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Embodiment Construction

[0048] The specific implementation, structure, features and functions of the tandem liquid crystal display driving circuit according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0049] see Figure 4 Shown is a block diagram of a driving circuit unit according to a preferred embodiment of the present invention, which shows any driving circuit unit according to a preferred embodiment of the present invention. The differential signal 412 is sent from the previous stage and reaches the present stage, and is read into the driving circuit unit 410 through the differential signal receiving circuit 420 , and then the differential signal transmitting circuit 430 generates the differential signal 414 and transmits it to the next stage.

[0050] The differential signal sending circuit 430 and receiving circuit 420 mentioned in the foregoing embodiments can be as follows Figure 5 Implement it as sho...

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Abstract

The drive circuit includes multiple units of drive circuit, multiple circuits for sending differential signal and multiple circuits for receiving differential signal. Circuit for sending differential signal is configured for these units of drive circuit in order to generate differential signal and to transfer the signal to unit of drive circuit in next stage. Circuit for receiving differential signal is configured for these units of drive circuit in order to receive differential signal from output of previous stage. Using differential signal can overcome disadvantage of consuming too much power.

Description

technical field [0001] The invention relates to a driving circuit of a liquid crystal display, in particular to a serial connection driving circuit of a liquid crystal display. Background technique [0002] Currently, the known driving circuits for liquid crystal displays are divided into parallel driving circuits and series driving circuits. Since the parallel driving circuit transmits the data signal (ie, data signal) to the specified driving circuit unit in the form of a bus, the parallel driving circuit consumes a circuit board area due to layout and wiring. [0003] see figure 1 Shown is a structural diagram of a conventional parallel driving circuit. In the figure, the data signal 122 required by the liquid crystal display 110 is supplied by several driving circuit units 120, and these driving circuit units 120 are implemented by Tape Carrier Package (TCP) technology. The driving circuit unit 120 supplies the required original data signal 144 through the data bus 14...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/136G02F1/133G09G3/36
Inventor 杨智翔
Owner AU OPTRONICS CORP