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Gate drive circuit, display device and gate pulse modulation method

A gate drive circuit, gate pulse technology, applied in static indicators, instruments, etc., can solve the problem of large difference in chamfering amplitude, and achieve the effect of reducing the difference in chamfering amplitude

Active Publication Date: 2017-04-05
FITIPOWER INTEGRATED TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the continuous increase of the size of the liquid crystal display, it is necessary to use multiple gate drivers to output the gate pulse signal, and the chamfering amplitude between adjacent gate drivers is quite different due to the difference in the characteristics of the components themselves.

Method used

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  • Gate drive circuit, display device and gate pulse modulation method
  • Gate drive circuit, display device and gate pulse modulation method
  • Gate drive circuit, display device and gate pulse modulation method

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Embodiment Construction

[0016] see figure 1 , figure 1 It is a structural schematic diagram of an embodiment of the display device 10 of the present invention. The display device 10 includes a display panel 110 , a gate driving circuit 122 and a data driver 130 . The gate driving circuit 120 is disposed on one side of the display panel 110 through GOA (Gate on Array) technology, and the data driver 130 is disposed on a side adjacent to the gate driving circuit 120 . The gate driving circuit 120 outputs a gate control signal to the display panel 110 . The data driver 130 outputs data driving signals to the display panel 110 . The gate driving circuit 122 includes a plurality of gate drivers. In this embodiment, the gate pulse modulation main circuit 122 has three gate drivers, which are respectively marked as 122a, 122b, and 122c as an example for illustration. It can be understood that the multiple gate pulse modulators 122 The quantity can be changed as needed and is not limited thereto. The p...

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Abstract

The invention provides a gate drive circuit, comprising: a plurality of mutually connected gate drivers; and a first discharge circuit through which the plurality of gate drivers are grounded. Each gate driver includes a second discharge circuit wherein the second discharge circuit is connected between the gate driver and one gate closing voltage. When a chamfering operation is executed by the gate drive circuit, the gate drive circuit discharges power through the first discharge circuit and the second discharge circuit simultaneously. As when a chamfering operation is executed by the gate drive circuit, the first discharge circuit and the second discharge circuit arranged on the printed circuit board discharge power simultaneously, the chamfering amplitude differences between adjacent gate drivers can be effectively reduced.

Description

technical field [0001] The invention relates to a gate drive circuit, a display device using the gate drive circuit and a gate pulse modulation method. Background technique [0002] Existing thin film transistor liquid crystal display (TFT-LCD) reduces flicker phenomenon caused by different feed through voltages at the rear end of scanning lines by trimming and modulating the gate pulse signal. However, due to the continuous increase of the size of the liquid crystal display, it is necessary to use multiple gate drivers to output the gate pulse signal, and the chamfering range between adjacent gate drivers is quite different due to the difference in the characteristics of the components themselves. Contents of the invention [0003] In view of this, it is necessary to provide a gate drive circuit, a display device, and a gate pulse modulation method that can increase the angle-cutting amplitude [0004] A gate drive circuit, comprising: a plurality of interconnected gate ...

Claims

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Application Information

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IPC IPC(8): G09G3/36
Inventor 张力申杨镇吉
Owner FITIPOWER INTEGRATED TECH INC