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

Scan driving unit, scan driving circuit, array substrate and display

A technology of scanning driving circuit and driving unit, which is applied in the field of scanning driving unit, scanning driving circuit, array substrate and display, and can solve the problems that the display cannot display normally, the EOA driving unit cannot output driving signals, etc.

Active Publication Date: 2021-10-22
SHENZHEN ROYOLE TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problems existing in the related art at least to a certain extent, the present invention provides a scan driving unit, a scan driving circuit, an array substrate and a display to solve the problem in the prior art that the output of the EOA drive unit cannot be normally low in the AGO stage. Drive signal, which causes the problem that the monitor cannot display normally when it wakes up from a black screen

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
  • Scan driving unit, scan driving circuit, array substrate and display
  • Scan driving unit, scan driving circuit, array substrate and display
  • Scan driving unit, scan driving circuit, array substrate and display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] It should be noted that the "odd variable level power supply" and "even variable level power supply" mentioned in this embodiment are all DC power supplies with variable level, for example, "odd variable level power supply "It can be a high-level power supply in the first frame image scanning period and output a high-level signal; it can be a low-level power supply in the second frame image scanning period and output a low-level signal.

[0095] "Odd variable-level power supply" has the same function as "even variable-level power supply", and it can also be a high-level power supply during the first frame image scanning cycle and output a high-level signal; during the second frame image scanning cycle It is a low-level power supply and outputs a low-level signal. However, the "odd variable level power supply" can also be a low-level power supply in the first frame image scanning period, and output a low-level signal; it can be a high-level power supply in the second fra...

Embodiment 2

[0183] Figure 4 is a schematic circuit diagram of a scanning drive unit shown according to an exemplary embodiment, as shown in Figure 4 As shown, the scan driver unit includes:

[0184] The EOA drive unit 2 is electrically connected to the pull-up node EPU and the pull-down node EPD with a pull-down control unit 21, and the pull-down control unit 21 is used to control the pull-up node EPU to remain constant during the AGO phase when the gate line is fully open. In the low level state, the pull-down node EPD remains in a normally high level state, so that the EOA driving unit outputs a normally low level signal.

[0185] It can be understood that, in the technical solution provided by this embodiment, for the EOA drive unit, since the pull-down control unit 11 controls the pull-down node EPD to maintain a constant high level state during the AGO phase when the gate line is fully open, the pull-up node EPU maintains a constant high level state. The low-level state makes the...

Embodiment 3

[0233] A scanning driving circuit shown according to an exemplary embodiment includes:

[0234] A plurality of the above-mentioned scan driving units.

[0235] It can be understood that, in the technical solution provided by this embodiment, since the improved scanning drive unit can output a normally low light emission control signal during the AGO phase when the gate lines are fully on, if the technical solution provided by this embodiment is applied to the The scanning drive of the OLED display is used in conjunction with the GOA drive unit that supports the AGO function in the prior art, so as to ensure that the display can display normally when the screen wakes up from a black screen.

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 relates to a scanning driving unit, a scanning driving circuit, an array substrate and a display. The scanning driving unit comprises: an EOA driving unit, a pull-down control unit is electrically connected to a pull-up node and a pull-down node, and the pull-down control unit is used for In the AGO stage when the gate line is fully open, the pull-up node is controlled to maintain a normal low level state, and the pull-down node is maintained to be a normal high level state. The technical solution provided by the present invention solves the problem in the prior art that the EOA drive unit cannot output a normally low drive signal in the AGO stage, which causes the display to fail to display normally when the screen wakes up from a black screen.

Description

technical field [0001] The invention relates to the technical field of display driving, in particular to a scanning driving unit, a scanning driving circuit, an array substrate and a display. Background technique [0002] In flat panel display technology, Organic Light-Emitting Diode (OLED) displays are famous for their thinness, active light emission, fast response speed, wide viewing angle, rich colors and high brightness, low power consumption, and high and low temperature resistance. It is recognized by the industry as the third-generation display technology after liquid crystal display (LCD). [0003] According to the driving method, OLED is divided into passive OLED (Passive Matrix OLED, PMOLED) and active OLED (Active Matrix OLED, AMOLED). PMOLED is also called passive-matrix OLED, and AMOLED is also called active-matrix OLED. PMOLED can only produce small-sized, low-resolution display panels. Driven by the method of maintaining voltage by capacitors, it can realize...

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 Patents(China)
IPC IPC(8): G09G3/3266
CPCG09G3/3266G09G2310/0264
Inventor 颜尧
Owner SHENZHEN ROYOLE TECH 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