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Gate drive circuit and display device using the same

A gate drive circuit and circuit technology, applied in the direction of circuits, electrical components, electrical solid devices, etc., can solve the problem of a single scanning method, and achieve the effect of improving the display quality

Active Publication Date: 2017-10-17
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scanning mode of the existing gate drive circuit is usually relatively simple, and often can only perform forward scanning or reverse scanning at the same time, and can only perform progressive scanning or interlaced scanning at the same time. The gate drive circuit is improved to realize the diversification of gate scanning methods to meet the needs of different display products

Method used

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  • Gate drive circuit and display device using the same
  • Gate drive circuit and display device using the same
  • Gate drive circuit and display device using the same

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] refer to Figure 1-5 , figure 1 It is a structural diagram when the gate driving circuit 100 of the present invention is applied to the liquid crystal display device 200 . A GOA circuit is disposed on the left and right sides of the active display area (APture Area, AA) of the liquid crystal display device 200 . In this embodiment, the left GOA circuit is an odd-numbered GOA circuit, and the right GOA circuit is an even-numbered GOA circuit.

[0028] The gate driving circuit 100 of the present invention includes a plurality of GOA circuits, wherein each odd-numbered GOA circuit is cascaded, and each even-numbered GOA circuit is cascaded. The gate drive circuit 100 also includes signal lines corresponding to odd-level GOA circuits for providing odd-level scan signals, start signals, and clock signals; , Start signal, clock signal signal line...

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PUM

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Abstract

The present invention provides a gate drive circuit, cascading each odd-numbered GOA circuit, and cascading each even-numbered GOA circuit; setting an odd-numbered scanning signal, a start signal, and a clock signal corresponding to an odd-numbered GOA circuit; corresponding to an even-numbered The even-level GOA circuit sets the even-level scanning signal, start signal, and clock signal; by controlling the potential of the odd-level scanning signal and the even-level scanning signal, and cooperating with the odd-level starting signal and the even-level starting signal of different timing, it can control the odd-level GOA circuit and The even-numbered GOA circuits perform forward scanning or reverse scanning simultaneously or in time-sharing. The present invention also provides a display device using the gate driving circuit.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gate drive circuit and a display device including the gate drive circuit. Background technique [0002] At present, the drive (ie, gate drive) of the horizontal scanning lines of the active liquid crystal display panel is mainly completed by an external integrated circuit (IC), which can control the step-by-step charging and discharging of the horizontal scanning lines at all levels. The GOA technology (Gate Driver on Array) is the row driving technology of the array substrate, which can use the original process of the liquid crystal display panel to manufacture the driving circuit of the horizontal scanning line on the substrate around the display area, so that it can replace the external IC to complete the horizontal scanning line. scan line driver. GOA technology can reduce the welding (bonding) process of external ICs, has the opportunity to increase production ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G09G3/3696G09G2300/0408G09G2300/0809G09G2310/0202G09G2310/0224G09G2310/0281G09G2310/0283G09G2310/0286G11C19/28H01L27/124H01L27/1255
Inventor 曹尚操
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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