Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Shift register unit, grid driving circuit and display apparatus

A technology of shift registers and capacitors, which is applied to instruments, static indicators, etc., can solve the problems of large area occupied by the gate drive circuit, increased power consumption of the gate drive circuit, and unfavorable narrow bezels of the display panel, so as to reduce power consumption. consumption, simple structure, simplified circuit structure and the effects of layout and wiring

Inactive Publication Date: 2016-03-30
BOE TECH GRP CO LTD +1
View PDF5 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above gate drive circuit, when the PU point and CK are high at the same time, it is necessary to set the PD point to a low potential through four thin film transistors M5, M6, M8, and M9. The circuit connection is complicated, and the area occupied by the entire gate drive circuit is relatively large. Large, so the area occupied by the substrate is also large, which is not conducive to realizing the narrow frame of the display panel; and the gate drive circuit includes more thin film transistors, which will also increase the power consumption of the gate drive circuit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shift register unit, grid driving circuit and display apparatus
  • Shift register unit, grid driving circuit and display apparatus
  • Shift register unit, grid driving circuit and display apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a shift register unit, such as Figure 4 As shown, the shift register unit of the present embodiment includes an input module 10, an output module 11, a pull-down control module 12 and a pull-down module 13, the input module 10 is connected with the output module 11 and the pull-down control module 12 respectively, and the pull-down module 13 is connected with the pull-down module 12 respectively. The control module 12 is connected to the output module 11, wherein the input module 10, the output module 11 and the pull-down control module 12 converge to form the first node PU, and the control terminal of the pull-down module 13 is the second node PD;

[0034] The input module 10 is used to receive the input signal and the second clock signal, and control the first node PU to be at a high level in the input stage, so that the output module 11 and the pull-down control module 12 are turned on; in the output stage, the first node PU is kept High lev...

Embodiment 2

[0045] This embodiment also provides a gate drive circuit, comprising a plurality of shift register units as described above, and the plurality of shift register units are sequentially connected in cascade.

[0046] In this embodiment, each shift register unit does not need to use the reset signal of the next shift register unit, but realizes self-resetting through its own circuit structure, which can simplify the circuit structure and layout of the shift register unit, and use less The thin film transistor is used to form the shift register unit, which has a simple structure, can save the area occupied by the gate drive circuit, is beneficial to realize the narrow frame of the display device, and can also reduce the power consumption of the gate drive circuit.

[0047] In a specific embodiment, the connection mode of the multi-stage shift register unit is:

[0048] The input signal of the first-stage shift register unit is a data carry signal;

[0049] The input signal of th...

Embodiment 3

[0051] This embodiment also provides a display device, including the above gate driving circuit. The display device can be any product or component with display function such as LCD TV, liquid crystal display, digital photo frame, mobile phone, tablet computer, etc., wherein the display device also includes a flexible circuit board, a printed circuit board and a backplane.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a shift register unit, a grid driving circuit and a display apparatus, and belongs to the technical field of display. The shift register unit comprises an input module, an output module, a pull-down control module and a pull-down module, wherein the input module is connected with the output module and the pull-down control module, the pull-down module is connected with the pull-down control module and the output module, the input module, the output module and the pull-down control module are convergent to form a first-node PU, and the control end of the pull-down module is provided with a second-node PD. According to the technical scheme provided by the invention, the shift register unit can be formed by use of a quite small number of thin film transistors, the structure is simple, the area occupied by a grid driving circuit can be saved, and power consumption of the grid driving circuit is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a gate drive circuit and a display device. Background technique [0002] Liquid crystal displays are now widely used in various display fields, such as households, public places, office places, and personal electronic related products. The liquid crystal display panel mainly includes: a liquid crystal cell formed by an array substrate and a color filter substrate, a polarizer, and a backlight module. A large number of thin-film transistors (TFTs) formed by overlapping gate lines and data lines are distributed on the array substrate. The gate lines control the switching of TFTs. When the TFTs are turned on, the pixel electrodes are charged or discharged through the data lines to control the application of The magnitude of the voltage on the liquid crystal molecules enables the light passing through the liquid crystal molecules to display different gray sca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677
Inventor 冯思林李红敏凌杰
Owner BOE TECH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com