# US 11,910,693 B2 · Display device, display panel and manufacturing method thereof comprising patterning light-emitting layer in opening region > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,693 B2 - Document ID: US11910693B2 - Status: Granted - Kind: B2 - Application number: 17/871,067 - Filed: 2022-07-22 - Published: 2022-11-10 - Granted: 2024-02-20 - Earliest claimed: 2019-08-14 - Assignees: Boe Technology Group Co., Ltd. - Applicants: BOE Technology Group Co., Ltd. - Inventors: Ziyu Zhang; Chunyan Xie - Web page: https://patentgrep.com/patent/US11910693B2 ## CPC - H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass - H10K 59/1201: {Manufacture or treatment} - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - H10K 71/231: {by etching of existing layers} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device, a display panel, and a manufacturing method thereof are provided. The display panel includes: a display substrate comprising a display region, wherein an opening region and an isolation region surrounding the opening region are arranged within the display region; a light-emitting layer formed on the display region; a blocking layer formed on a surface of the light-emitting layer away from the display substrate; and a first packaging layer covering the light-emitting layer and the blocking layer, wherein the first packaging layer is patterned through a photoresist layer to form a first through hole on the first packaging layer; a second through hole is respectively formed at a part of the blocking layer corresponding to the first through hole and at a part of the light-emitting layer corresponding to the first through hole. ## Claims ### Claim 1 A display panel, comprising: a display substrate comprising a display region, wherein an opening region and an isolation region surrounding the opening region are arranged within the display region; a light-emitting layer formed on the display region; a blocking layer formed on a surface of the light-emitting layer away from the display substrate; and a first packaging layer covering the light-emitting layer and the blocking layer, wherein the first packaging layer is patterned through a photoresist layer covering a side of the first packaging layer away from the display substrate to form a first through hole on the first packaging layer; a second through hole is respectively formed at a part of the blocking layer corresponding to the first through hole and at a part of the light-emitting layer corresponding to the first through hole; wherein the light-emitting layer covers an overall area of the display region, wherein an overall area of the opening region and at least a part of the isolation region are surrounded by an outline of an orthographic projection of the blocking layer on the display substrate, and wherein an orthographic projection of the first through hole on the display substrate is surrounded by an outline of the orthographic projection of the blocking layer on the display substrate, and an orthographic projection of the first through hole on the display substrate covers the overall area of the opening region and at least a part of the isolation region. ### Claim 2 (depends on 1) The display panel of claim 1, wherein a material of the blocking layer comprises an inorganic material. ### Claim 3 (depends on 2) The display panel of claim 2, wherein the inorganic material comprises a metallic material. ### Claim 4 (depends on 3) The display panel of claim 3, wherein the metallic material comprises at least one of: aluminum, titanium, tin, copper, chromium, zinc, and molybdenum. ### Claim 5 (depends on 3) The display panel of claim 3, wherein the part of the blocking layer corresponding to the first through hole and the part of the light-emitting layer corresponding to the first through hole are etched using an etching gas to form the second through hole, wherein the etching gas comprises at least one of: chlorine, boron trichloride, and silicon tetrachloride. ### Claim 6 (depends on 1) The display panel of claim 1, further comprising a second packaging layer covering the first packaging layer and covering an inner wall of the second through hole, wherein an opening is formed in the opening region. ### Claim 7 (depends on 1) The display panel of claim 1, wherein a thickness of the blocking layer is less than a thickness of the first packaging layer. ### Claim 8 (depends on 1) The display panel of claim 1, wherein a thickness of the blocking layer is 20 nm 2000 nm. ### Claim 9 A display device comprising a display panel, wherein the display panel comprises: a display substrate comprising a display region, within which an opening region and an isolation region surrounding the opening region are arranged; a light-emitting layer formed on the display region; a blocking layer formed on a surface of the light-emitting layer away from the display substrate; and a first packaging layer covering the light-emitting layer and the blocking layer, wherein the first packaging layer is patterned through a photoresist layer covering a side of the first packaging layer away from the display substrate to form a first through hole on the first packaging layer; a second through hole is respectively formed at a part of the blocking layer corresponding to the first through hole and a part of the light-emitting layer corresponding to the first through hole; wherein the light-emitting layer covers an overall area of the display region, wherein an overall area of the opening region and at least a part of the isolation region are surrounded by an outline of an orthographic projection of the blocking layer on the display substrate, and wherein an orthographic projection of the first through hole on the display substrate is surrounded by an outline of the orthographic projection of the blocking layer on the display substrate, and an orthographic projection of the first through hole on the display substrate covers the overall area of the opening region and at least a part of the isolation region. ### Claim 10 (depends on 9) The display device of claim 9, wherein the display panel comprises a second packaging layer covering the first packaging layer and covering an inner wall of the second through hole, and an opening is formed in the opening region. ### Claim 11 (depends on 9) The display device of claim 9, wherein a thickness of the blocking layer is less than a thickness of the first packaging layer.