A kind of substrate and its preparation method, display device

A substrate and hydroxyl technology, applied in the manufacture of semiconductor/solid-state devices, semiconductor devices, electrical components, etc., can solve the problems of disconnection and affect the display effect of the display device, so as to increase the etching time, improve the display effect, and improve the disconnection. Effect

Active Publication Date: 2022-05-06
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The display device includes a plurality of conductive film layers, an insulating layer is arranged between the plurality of conductive film layers, and some conductive film layers need to be electrically connected through via holes on the insulating layer. 90°), the conductive film layer passing through the via hole is easy to break the line in the via hole, thus affecting the display effect of the display device

Method used

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  • A kind of substrate and its preparation method, display device
  • A kind of substrate and its preparation method, display device
  • A kind of substrate and its preparation method, display device

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] The display device can be used as a mobile phone, a tablet computer, a personal digital assistant (personal digital assistant, PDA), a vehicle-mounted computer, etc. The embodiment of the present invention does not specifically limit the specific application of the display device.

[0033] Such as figure 1 As shown, the display device may include, for example, a frame 1 , a display panel 2 , a circuit board 3 , a cover 4 , and other electronic accessori...

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PUM

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Abstract

Embodiments of the present invention provide a substrate, a manufacturing method thereof, and a display device. In the field of display technology, the slope angle of the second via hole can be reduced to improve the display effect of the display device. A method for preparing a substrate, comprising: sequentially forming a first flat film and a second flat film on a substrate, the hardness of the first flat film is greater than that of the second flat film; The second planar film and the first planar film are etched to obtain a first planar layer and a second planar layer sequentially disposed on the substrate; the first planar layer includes a first via hole, and the first planar layer includes The second planar layer includes a second via hole, at least part of the orthographic projection of the second via hole on the substrate overlaps with the orthographic projection of the first via hole on the substrate.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a substrate, a preparation method thereof, and a display device. Background technique [0002] With the rapid development of display technology, in order to bring better experience to users, display devices such as mobile phones are also constantly updated and iterated. [0003] The display device includes a plurality of conductive film layers, an insulating layer is arranged between the plurality of conductive film layers, and some conductive film layers need to be electrically connected through via holes on the insulating layer. If the slope angle of the via holes is large (85°~ 90°), the conductive film layer passing through the via hole is easily disconnected in the via hole, thereby affecting the display effect of the display device. Contents of the invention [0004] Embodiments of the present invention provide a substrate, a manufacturing method thereof, and a display ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L21/77H01L27/32H01L27/12
CPCH01L27/1244H10K59/124H10K59/131H10K59/1201
Inventor 程磊磊李伟徐纯洁王庆贺刘宁周斌
Owner BOE TECH GRP CO LTD
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