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

A scanning driving and driving unit technology, which is applied in the fields of scanning driving units, scanning driving circuits, array substrates and displays, can solve the problems such as the inability to output driving signals and the inability of the display to display normally.

Active Publication Date: 2021-10-22
SHENZHEN ROYOLE TECH CO LTD
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  • 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 GOA drive unit cannot output constant high and / or a very low drive signal, which causes the display to fail to display normally when the screen wakes up from a black screen

Method used

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  • 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

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Embodiment 1

[0071] 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.

[0072] "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

[0159] A scanning driving circuit shown according to an exemplary embodiment includes:

[0160] a plurality of the above scanning drive units;

[0161] The GOA driving units in the multiple scanning driving units are cascaded with each other.

[0162] It can be understood that, in the technical solution provided by this embodiment, since the improved scanning drive unit can output a constant high row scanning driving signal in the AGO stage when the gate lines are fully open, if the technical solution provided by this embodiment is applied to The scan drive of the OLED display can be used in conjunction with the EOA drive unit supporting the AGO function in the prior art, so as to ensure that the display can be displayed normally when the screen wakes up from a black screen.

Embodiment 3

[0164] see Figure 4 , an array substrate AY shown according to an exemplary embodiment, comprising:

[0165] An image display area 200 and a non-image display area 100, the image display area 200 includes a pixel array for performing image display, and the non-image display area 100 includes the above-mentioned scanning driving circuit.

[0166] It can be understood that, in the technical solution provided by this embodiment, since the improved scanning driving circuit can output a normally high row scanning driving signal during the AGO stage when the gate lines are fully open, if the technical solution provided by this embodiment is applied to The scan drive of the OLED display can be used in conjunction with the EOA drive unit supporting the AGO function in the prior art, so as to ensure that the display can be displayed normally when the screen wakes up from a black screen.

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Abstract

The invention relates to a scanning driving unit, a scanning driving circuit, an array substrate and a display. The scanning driving unit includes: a GOA driving unit, and a pull-down control unit is electrically connected to a pull-up node and a pull-down node of the pull-down control unit. In the AGO stage when the gate lines are fully open, the pull-up node is controlled to maintain a normal high level state, and the pull-down node is maintained to be a normal low level state, so that the GOA driving unit outputs a normal high level signal. The technical solution provided by the present invention solves the problem in the prior art that the display cannot display normally when the display wakes up from a black screen because the GOA drive unit cannot output a normally high drive signal in the AGO stage.

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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208G09G3/3266
CPCG09G3/3208G09G3/3266
Inventor 颜尧
Owner SHENZHEN ROYOLE TECH CO LTD
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