# US 2019/0355757 A1 · Array substrate, method for manufacturing the same, and display panel thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0355757 A1 - Document ID: US20190355757A1 - Status: Published application - Kind: A1 - Application number: 16/331,285 - Filed: 2018-05-15 - Published: 2019-11-21 - Earliest claimed: 2017-08-17 - Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd. - Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd; Boe Technology Group Co., Ltd. - Inventors: Binbin CAO - Web page: https://patentgrep.com/patent/US20190355757A1 ## CPC - H10D 86/60: wherein the TFTs are in active matrices - G02F 1/136209: {Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element} - H10D 86/0212: {comprising manufacture, treatment or coating of substrates} - H10D 86/411: {characterised by materials, geometry or structure of the substrates} - G02F 2203/02: reflective - G02F 2203/03: scattering - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract Embodiments of the present disclosure relate to an array substrate, a method for manufacturing the same, and a display panel thereof. The array substrate includes a transparent substrate having a first side surface and a second side surface opposite to the first side surface, and a light reflecting structure located on the first side surface of the transparent substrate, wherein the second side surface of the transparent substrate has a coarse region, an orthographic projection of the coarse region on the transparent substrate coinciding with an orthographic projection of the light reflecting structure on the transparent substrate. ## Claims ### Claim 1 An array substrate comprising: a transparent substrate having a first side surface and a second side surface opposite to the first side surface; and a light reflecting structure disposed on the first side surface of the transparent substrate, wherein the second side surface of the transparent substrate has a coarse region, an orthographic projection of the coarse region on the transparent substrate coinciding with an orthographic projection of the light reflecting structure on the transparent substrate. ### Claim 2 (depends on 1) The array substrate according to claim 1, wherein the coarse region is a portion of a base material of the transparent substrate. ### Claim 3 (depends on 1) The array substrate according to claim 1, wherein the light reflecting structure comprises a black matrix and a conductive structure. ### Claim 4 (depends on 3) The array substrate according to claim 3, wherein the conductive structure comprises at least one of a data line, a data lead, a gate line, and a gate lead formed on the transparent substrate. ### Claim 5 (depends on 2) The array substrate according to claim 2, wherein the base material of the transparent substrate is glass. ### Claim 6 (depends on 1) A display panel comprising the array substrate according to claim 1. ### Claim 7 A method for manufacturing an array substrate, the method comprising: providing a transparent substrate having a first side surface and a second side surface opposite to the first side surface, a light reflecting structure being disposed on the first side surface of the transparent substrate; and coarsening the second side surface of the transparent substrate to form a coarse region, wherein an orthographic projection of the coarse region on the transparent substrate coincides with an orthographic projection of the light reflecting structure on the transparent substrate. ### Claim 8 (depends on 7) The method according to claim 7, wherein the coarse region is a portion of a base material of the transparent substrate. ### Claim 9 (depends on 7) The method according to claim 7, wherein the coarsening comprises: forming a protective layer on the second side surface of the transparent substrate; patterning the protective layer to form a patterned protective layer, wherein the patterned protective layer has an opening, an orthographic projection of the opening on the transparent substrate coinciding with the orthographic projection of the light reflecting structure on the transparent substrate; coarsening a portion, exposed by the opening, of the second side surface of the transparent substrate to form the coarse region; and removing the patterned protective layer. ### Claim 10 (depends on 9) The method according to claim 9, wherein a material of the protective layer is a negative photoresist, and wherein the patterning comprises exposing the negative photoresist using the light reflecting structure as a mask. ### Claim 11 (depends on 9) The method according to claim 9, wherein coarsening the portion, exposed by the opening, of the second side surface of the transparent substrate to form the coarse region comprises one of a wet and a dry etching. ### Claim 12 (depends on 11) The method according to claim 11, wherein the base material of the transparent substrate is glass. ### Claim 13 (depends on 12) The method according to claim 12, wherein the wet etching employs an etchant comprising frost powder, hydrofluoric acid, and hydrochloric acid. ### Claim 14 (depends on 12) The method according to claim 12, wherein the dry etching employs a plasma of at least one of He, CF4, H2, and O2. ### Claim 15 (depends on 7) The method according to claim 7, wherein the light reflecting structure comprises a black matrix and a conductive structure. ### Claim 16 (depends on 15) The method according to claim 15, wherein the conductive structure comprises at least one of a data line, a data lead, a gate line, and a gate lead formed on the transparent substrate. ### Claim 17 (depends on 2) A display panel comprising the array substrate according to claim 2. ### Claim 18 (depends on 3) A display panel comprising the array substrate according to claim 3. ### Claim 19 (depends on 4) A display panel comprising the array substrate according to claim 4. ### Claim 20 (depends on 5) A display panel comprising the array substrate according to claim 5.