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A single-stage goa circuit and display device

A circuit and single-stage technology, applied in static indicators, digital memory information, instruments, etc., can solve problems such as difficulty in meeting narrow borders, and achieve the effect of reducing the number of GOA units

Active Publication Date: 2022-07-12
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a single-stage GOA circuit and a display device, which solves the problem that the existing technology is difficult to meet the narrow frame

Method used

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  • A single-stage goa circuit and display device
  • A single-stage goa circuit and display device
  • A single-stage goa circuit and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1. The TFT is a top-gate TFT, and the plurality of gate control lines are bottom-gate control lines.

Embodiment 2

[0029] In Embodiment 2, the TFT is a bottom-gate TFT, and a plurality of the gate control lines are all top-gate control lines.

[0030] At the same time, the single-stage GOA circuit is the nth stage GOA circuit, and the Q point is the nth stage Q n point, multiple outputs are G n , G n+1 , G n+2 ,...G n+m , where m is the number of multiple outputs. The first feedback signal is the feedback signal of the n-1 th GOA circuit, and the second feedback signal is the feedback signal of the n+1 th GOA circuit.

[0031] Figure 4 Shown is m=2, ie an embodiment comprising two TFTs, see Figure 5-Figure 6 , Figure 5 A schematic diagram of frame occupation of a GOA circuit provided by an embodiment of the present invention; Image 6 The output waveform diagram of the single-stage GOA circuit provided by the embodiment of the present invention. The single-stage GOA unit of the present invention has two output TFT switches T1 / T2, and the two output switches correspond to 2 rows...

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Abstract

The invention discloses a single-stage GOA circuit and a display device. The circuit includes a plurality of transistors, the first ends of the plurality of transistors are connected to a preset clock signal, and the second ends of the plurality of transistors are connected to each other. At point Q, the third terminals of the plurality of transistors are used as output terminals to drive the scanning lines of the plurality of rows respectively. In the present invention, a single group of GOAs is used to drive multiple rows of scan lines, so as to reduce the number of GOA units required for the panel assembly, thereby realizing the design requirement of a narrow frame.

Description

technical field [0001] The present invention relates to the technical field of displays, and more particularly, to a single-stage GOA circuit and a display device. Background technique [0002] The design principle of traditional GOA (Gate on Array) circuit is similar to the form of shift register, see Figure 1-3 , the GOA circuit can be abstracted into the following four parts, namely the pull-up unit, the output unit, the pull-down unit and the pull-down maintaining unit. The output signal of the previous stage is fed back to the next stage, and the potential of the Q point is raised, so as to realize the output of the next stage; at the same time, the signal of the next stage is fed back to the previous stage, and the Q point and Gate output signals are pulled down, so as to realize the scanning line Gate off. At present, the design forms of various GOA circuits can be attributed to the above four parts. As can be seen from the above description, one row of scan lines ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G11C19/28G09G2310/0286
Inventor 陈江川
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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