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Driving circuit and method for plane display and display panel thereof

A flat-panel display, driving circuit technology, applied in static indicators, instruments, etc., can solve the problems of unable to provide pre-charging function, unable to improve display performance, etc., to achieve the effect of simple structure

Active Publication Date: 2008-09-17
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned traditional horizontal sequential scanning shift register structure cannot provide the pre-charging function, so the performance of the display cannot be improved. If the pre-charging function is to be added, an additional circuit block with a pre-charging function needs to be added at the data line end. As shown in Figure 3B

Method used

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  • Driving circuit and method for plane display and display panel thereof
  • Driving circuit and method for plane display and display panel thereof
  • Driving circuit and method for plane display and display panel thereof

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Embodiment Construction

[0038] FIG. 4 shows the structure of the horizontal sequential scanning shift register according to an embodiment of the present invention, including multi-level basic scanning shift register units (respectively represented by BC1-BC3 in the figure), a pair of complementary clock signal lines HCK / XHCK and a Horizontal start signal generator HST. Each level of basic scanning shift register unit (respectively represented by BC1-BC3 in the figure) includes a bidirectional switching circuit Bi-direct and a shift register (respectively represented by SR1-SR3 in the figure), and the bidirectional switching circuit Bi-direct is based on A left and right control signal L / R is operated, and the shift registers (respectively represented by SR1 to SR3 in the figure) are coupled to the bidirectional switching circuit Bi-direct, and the basic scanning shift register units after the second stage (respectively represented by SR3 in the figure) BC2, BC3) also includes a transmission gate TG a...

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Abstract

The invention is a drive circuit for a flat display, wherein every-stage basic scanning shift register unit comprises bidirectional switching circuit, shift register, transmission gate and data bus, the shift register coupled to the bidirectional switching circuit, the transmission gate coupled to the shift register to receive RGB input, and the data bus coupled to the transmission gate; complementary clock signal lines are coupled to all the shift registers; a horizontal starting signal generator generates a horizontal starting signal to the bidirectional switching circuits int the first stage and another stage; every shift register generates output signal to the bidirectional switching circuit in the next stage; and simultaneously every bidirectional switching circuit receives the output signal generated by the shift register in the next stage.

Description

technical field [0001] The invention relates to a driving circuit of a flat display, in particular to a driving circuit of a flat display with a precharging function. Background technique [0002] A general conventional active driving device includes a gate line, a data line and a matrix of pixels. Each pixel is controlled by a thin film transistor. The low-temperature polysilicon manufacturing process integrates the vertical timing scanning displacement register and the horizontal timing scanning displacement register on the glass substrate. The vertical timing scanning displacement register is composed of a displacement register and a gate line. The horizontal time-sequence scanning shift register is composed of a shift register, a switch and a data line, and the signal combination of the two can determine the position of the pixel to be charged. As the resolution increases, the relative pixel charging time decreases, which may easily cause insufficient charging. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
Inventor 施瑄芳丁友信尤建盛
Owner AU OPTRONICS CORP