Voltage boost circuit, shift register and gate driving module

A shift register and voltage boosting technology, applied in static memory, digital memory information, instruments, etc., can solve the problem that the driving circuit cannot be applied to the stereoscopic image display device.

Active Publication Date: 2014-01-08
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the existing driving circuit cannot b

Method used

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  • Voltage boost circuit, shift register and gate driving module
  • Voltage boost circuit, shift register and gate driving module
  • Voltage boost circuit, shift register and gate driving module

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Embodiment Construction

[0045] figure 2 A circuit block diagram of a gate driving module used in a display device according to a preferred embodiment of the present invention is shown. Please refer to figure 2 , the gate driving module 200 provided in this embodiment includes a plurality of shift registers SR1 , SR2 , SR3 , SR4 , SR5 . . . , SRn arranged in sequence. Wherein, each shift register outputs a gate signal G1 , G2 , G3 , G4 , G5 . . . , Gn to scan the corresponding gate line in the display device. In addition, in this embodiment, each shift register is coupled to a clock signal, for example image 3 Shown are HC1, HC2, HC3, HC4, HC5....

[0046] image 3 A timing diagram of a clock signal of a display device in a stereoscopic image display mode is shown according to an embodiment of the present invention. Please merge reference figure 2 and image 3 , when the display device is displaying stereoscopic images (that is, working in 3D mode), since the left-eye signal and the right-e...

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PUM

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Abstract

A voltage boost circuit, a shift register and a gate driving module. The voltage boost circuit comprises a first switch, a second switch, and a third switch. The first switch can decide whether to transmit a first voltage signal to a second node according to a first driving signal. In addition, the second switch decides whether to transmit a voltage boost signal to a first node according to a second driving signal. The enabled time of the second driving signal is overlapped with the enabled time of the voltage boost signal, and the enabled time of the second driving signal is not overlapped with the enabled time of the first driving signal. Moreover, the frequency of the voltage boost signal can be greater than or equal to the frequency of the second driving signal. In addition, the third switch can decide to transmit a clock signal to an output end according to the state of the first node.

Description

technical field [0001] The invention relates to a shift register, in particular to a shift register applied to a gate driving module in a display. Background technique [0002] Figure 1A shows a block diagram of an existing gate drive array, while Figure 1B then shows Figure 1A The timing diagram of each gate drive signal in . Please merge reference Figure 1A and Figure 1B , the existing gate drive array 100 can be applied to a display device, which includes a plurality of shift registers, such as 102, 104, 106, 108, 110 and 112, and each shift register 102, 104, 106, 108 , 110 and 112 will output corresponding gate signals G1, G2, G3, G4, G5 and G6 to each column in the display device according to a start signal (such as ST1) and a clock signal CLK to activate each column pixels in . [0003] However, in recent years, stereoscopic image display devices have begun to flourish. Since the stereoscopic image display device needs to display left-eye images and right-ey...

Claims

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Application Information

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IPC IPC(8): G09G3/20G11C19/28
Inventor 林炜力董哲维陈嘉亨侯淑方
Owner AU OPTRONICS CORP
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