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Display substrate, display panel and display device

A technology for display substrates and wires, applied in identification devices, instruments, nonlinear optics, etc., can solve the problems of signal transmission delay, uneven brightness, and affect the display effect, so as to reduce the degree of delay, improve the display effect, and improve the resistance difference. Effect

Active Publication Date: 2022-06-03
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When displaying, there will be a signal transmission delay, which will cause color shift, uneven brightness (ie Mura) and other defects in the displayed screen, which will affect the display effect.

Method used

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  • Display substrate, display panel and display device
  • Display substrate, display panel and display device
  • Display substrate, display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0091] Please refer to Figure 7 , the above-mentioned display substrate 01 further includes: a first insulating layer 31 and a second insulating layer 32 arranged in the fan-out region 10; please refer to Figure 8 , the fan-out structure layer 20 (limited by Figure 8 In the cross-sectional direction in , only the fan-out structure layer 20), the first insulating layer 31, and the conductive connection layer 21 (limited by the Figure 8 In the cross-sectional direction shown in the figure, only the conductive connection layer 21) and the second insulating layer 32 are sequentially stacked and disposed above the base substrate 100 by a dotted frame.

[0092] please continue Figure 8 , each connection portion 22 includes: a first via hole 221 penetrating the first insulating layer 31 and the second insulating layer 32 and disposed on the corresponding fan-out wire 202, penetrating the second insulating layer 32 and disposed on the conductive strip The second via hole 222 o...

example 2

[0099] Under the condition that the film-forming overlap is ensured, the conductive strip 210a and the fan-out wire 202 can also be connected in parallel through the process of being located on the insulating layer between the two, as follows:

[0100] Please refer to Figure 9 or Figure 11 , the above-mentioned display substrate 01 further includes: a third insulating layer 33 disposed in the fan-out region 10; please refer to Figure 10 or Figure 12 , along the vertical direction Z-Z' of the display substrate 01, the fan-out structure layer 20 (limited by Figure 10 or Figure 12 The cross-sectional direction in , only the fan-out structure layer 20) and the conductive connection layer 21 (limited by Figure 10 or Figure 12 In the cross-sectional direction in , only the dotted frame indicates that the conductive connection layer 21) is located on both sides of the third insulating layer 33, respectively.

[0101] Each connection portion 22 is a third via hole that p...

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Abstract

The invention provides a display substrate, a display panel and a display device, which relate to the field of display technology and can reduce the difference in resistance between wires of different lengths in a fan-out area. The display substrate includes a fan-out area and a fan-out structure layer located in the fan-out area; the fan-out area includes a middle sub-area and side sub-areas on both sides; the fan-out structure layer includes a middle wire located in the middle sub-area and a A plurality of fan-out wires in the sub-area; the middle wires and the fan-out wires are arranged at intervals along the first direction, and the length of the fan-out wires is greater than the length of the middle wire; the conductive connection layer located in the fan-out area, the conductive connection layer Including at least one conductive group, at least one fan-out wire corresponds to a conductive group; the conductive group includes at least one conductive strip; the fan-out wire is connected in parallel with the conductive strip in the corresponding conductive group, so as to reduce the fan-out wire after parallel connection The difference in resistance from the middle conductor. It is used for the preparation of a display substrate, a display panel including the display substrate, and a display device.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a display substrate, a display panel and a display device. Background technique [0002] The display substrate includes a display area and a driving circuit area (or called a peripheral circuit area and a peripheral circuit area); wherein, the driving circuit area is provided with a driving circuit to output signals; a display structure layer is provided in the display area to display the picture; two Conductors for transmitting corresponding signals to the display area are arranged between the areas. [0003] In order to increase the area of ​​the display area, the wires located between the two areas are designed to be concentrated toward the driving circuit area with a smaller area, so that the wires located between the two areas are assembled into a structure similar to a fan. It is the so-called fan-out area (ie Fan-out). [0004] In the fan-out area, each wir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1345G09F9/33
CPCG02F1/13452G09F9/33
Inventor 陈胡建樊超廖中伟赵永强王新华蒋冬舜
Owner BOE TECH GRP CO LTD