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Base plate and preparation method thereof and display device

A substrate and hydroxyl technology, applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as disconnection and affecting the display effect of display devices

Active Publication Date: 2020-02-14
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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  • Base plate and preparation method thereof and display device
  • Base plate and preparation method thereof and display device
  • Base plate and preparation method thereof and 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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Abstract

The embodiment of the invention provides a base plate and a preparation method thereof and a display device, and relates to the technical field of display. The slope angle of a second via hole can bereduced so as to improve the display effect of the display device. The preparation method of the base plate comprises the following steps: a first flat film and a second flat film are sequentially formed on a substrate, and the hardness of the first flat film is larger than that of the second flat film; the second flat film and the first flat film are etched by adopting a photo-etching process toobtain a first flat layer and a second flat layer which are sequentially arranged on the substrate; and the first flat layer comprises a first via hole, the second flat layer comprises a second via hole, and the orthographic projection of at least part of the second via hole on the substrate is overlapped 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 Applications(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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