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Array substrate preparation method and array substrate

An array substrate and substrate substrate technology, which is applied in the field of OLED display, can solve the problems of high cost of light shielding layer and increased production cost, and achieve the effect of solving high cost

Pending Publication Date: 2020-09-08
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0002] In the existing method for preparing an array substrate, a separate light-shielding layer mask is usually required to form the light-shielding layer pattern, and the formed light-shielding layer pattern is used to shield external light from entering the channel region of the active layer and prevent leakage current of the TFT device. However, the formation of the light-shielding layer pattern by using the light-shielding layer mask alone increases the production cost. Therefore, the existing array substrate has the technical problem of high cost of forming the light-shielding layer

Method used

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  • Array substrate preparation method and array substrate
  • Array substrate preparation method and array substrate
  • Array substrate preparation method and array substrate

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0034] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the pr...

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Abstract

The embodiment of the invention provides an array substrate preparation method, which comprises the steps of forming a shading layer pattern by adopting an active layer photomask, then forming an active layer pattern by utilizing the active layer photomask, and covering the orthographic projection of the active layer pattern on a substrate by the orthographic projection of the shading layer pattern on the substrate. The shading layer and the active layer share one active layer photomask, so that one shading layer photomask is omitted, and the technical problem that the cost for forming the shading layer of an existing array substrate is high is solved.

Description

technical field [0001] The invention relates to the technical field of OLED display, in particular to a method for preparing an array substrate and an array substrate. Background technique [0002] In the existing method for preparing an array substrate, a separate light-shielding layer mask is usually required to form the light-shielding layer pattern, and the formed light-shielding layer pattern is used to shield external light from entering the channel region of the active layer and prevent leakage current of the TFT device. However, the formation of the light-shielding layer pattern by using the light-shielding layer mask alone increases the production cost. Therefore, the existing array substrate has the technical problem of high cost of forming the light-shielding layer. Contents of the invention [0003] An embodiment of the present invention provides an array substrate, which can alleviate the technical problem of high cost of forming a light-shielding layer in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/77H01L27/12H01L27/32
CPCH01L27/1259H01L27/1288H01L27/1214H10K59/12H10K59/126
Inventor 吴咏波
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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