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Shifting register unit, drive method thereof, gate drive circuit and display panel

A shift register and driving signal technology, applied in static memory, digital memory information, instruments, etc., can solve problems such as increased process difficulty, uncompetitive display panels, and increased production costs

Inactive Publication Date: 2017-05-10
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the output of the scanning signal can be realized by inputting more control signals with different functions, this leads to a large number of switching transistors forming the shift register units of each level in the gate driving circuit, and the gap between the switching transistors. The specific structure of the inter-connection is also relatively complicated, resulting in increased process difficulty and increased production costs. Even because more signal lines need to be used to input a variety of control signals with different functions into the shift register units at all levels, resulting in openings in the display panel rate is reduced, making this display panel uncompetitive

Method used

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  • Shifting register unit, drive method thereof, gate drive circuit and display panel
  • Shifting register unit, drive method thereof, gate drive circuit and display panel
  • Shifting register unit, drive method thereof, gate drive circuit and display panel

Examples

Experimental program
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Effect test

Embodiment 1

[0098] by Figure 2a The structure of the shift register unit shown is taken as an example to describe its working process, wherein, in Figure 2a In the shift register unit shown, all switching transistors are N-type switching transistors; the potential of the first reference signal terminal VSS is low potential, and the potential of the second reference signal terminal VDD is high potential; the corresponding input and output timing diagram is as follows Figure 3a Shown, specifically, select as Figure 3a The four stages of T1, T2, T3 and T4 in the shown input and output timing diagram.

[0099] In the T1 stage, Input=1, Reset=0, CLK=0.

[0100] Since Input=1, the fourth switching transistor M4 is turned on. Since the fourth switch transistor M4 is turned on and provides the signal of the high-potential input signal terminal Input to the first node A, the potential of the first node A is high. Since the potential of the first node A is high, both the third switching tra...

Embodiment 2

[0114] by Figure 2b The structure of the shift register unit shown is taken as an example to describe its working process, wherein, in Figure 2b In the shift register unit shown, all switching transistors are P-type switching transistors; the potential of the first reference signal terminal VSS is high potential, and the potential of the second reference signal terminal VDD is low potential; the corresponding input and output timing diagram is as follows Figure 3b Shown, specifically, select as Figure 3b The four stages of T1, T2, T3 and T4 in the shown input and output timing diagram.

[0115] In the T1 stage, Input=0, Reset=1, CLK=1.

[0116] Since Input=0, the fourth switching transistor M4 is turned on. Since the fourth switch transistor M4 is turned on and provides the signal of the input signal terminal Input with a high potential to the first node A, the potential of the first node A is low. Since the potential of the first node A is low, both the third switch t...

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Abstract

The invention discloses a shifting register unit, a drive method of the shifting register unit, a gate drive circuit and a display panel. The shifting register unit comprises an input module, a resetting module, a first control module, a second control module, a first output module and a second output module. Through the match of the six modules, namely, the input module, the resetting module, the first control module, the second control module, the first output module and the second output module, the output of a drive signal output end is realized through the simple structure and few signal lines, thus a preparation process is simplified, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a driving method thereof, a gate driving circuit and a display panel. Background technique [0002] With the rapid development of display technology, the display panel is more and more developed towards the direction of high integration and low cost. Among them, the gate driver on array (Gate Driver on Array, GOA) technology integrates the thin film transistor (Thin Film Transistor, TFT) gate switching circuit on the array substrate of the display panel to form a scan drive for the display panel, so that the gate driver can be omitted. The wiring space of the Bonding area of ​​the integrated circuit (Integrated Circuit, IC) and the fan-out (Fan-out) area can not only reduce the product cost in terms of material cost and manufacturing process, but also enable the display panel to achieve Beautiful design with symmetry on both sides and narrow frame; moreov...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G3/3266G11C19/28
CPCG09G3/3674G09G3/3266G09G2310/0286G11C19/28
Inventor 王飞
Owner BOE TECH GRP CO LTD
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