# US 2021/0242422 A1 · Display panel, display module, and electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242422 A1 - Document ID: US20210242422A1 - Status: Published application - Kind: A1 - Application number: 16/496,460 - Filed: 2019-05-21 - Published: 2021-08-05 - Earliest claimed: 2019-05-07 - Assignees: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Jiayou CHENG; Donghwan KIM; Cguebkub WU - Web page: https://patentgrep.com/patent/US20210242422A1 ## CPC - H10K 59/873: {Encapsulations} - H10H 20/852: Encapsulations - H10H 20/853: characterised by their shape - H10H 20/854: characterised by their material, e.g. epoxy or silicone resins - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/173: comprising banks or shadow masks - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS ## Abstract The present invention provides a display panel, a display module, and an electronic device. The display panel includes at least one blocking portion. Each blocking portion has a first sub-blocking portion, at least one second sub-blocking portion, and at least one blocking unit. The at least one second sub-blocking portion partially covers the first sub-blocking portion. The blocking unit partially cover the corresponding second sub-blocking portion. A gap between tops of each two adjacent third sub-blocking portions is smaller than a gap between bottoms of each two adjacent third sub-blocking portions. ## Claims ### Claim 1 A display panel, comprising: at least one blocking portion, the at least one blocking portion surrounding a display region, a cross-section of the blocking portion comprising: a first sub-blocking portion; at least one second sub-blocking portion, the at least one second sub-blocking portion disposed on the first sub-blocking portion, the at least one second sub-blocking portion partially covering the first sub-blocking portion; and at least one blocking unit, the blocking unit disposed on the second sub-blocking portion, the blocking unit comprising at least two third sub-blocking portions, the blocking unit disposed corresponding to the second sub-blocking portion, the blocking unit partially covering the corresponding second sub-blocking portion, a gap between tops of each two adjacent third sub-blocking portions is smaller than a gap between bottoms of each two adjacent third sub-blocking portions. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein the blocking portion comprises at least two second sub-blocking portions, a gap between tops of each two adjacent second sub-blocking portions is smaller than a gap between bottoms of each two adjacent second sub-blocking portions. ### Claim 3 (depends on 2) The display panel according to claim 2, wherein a cross-section of the second sub-blocking portion has an inverted trapezoidal shape. ### Claim 4 (depends on 3) The display panel according to claim 3, wherein a bottom angle of the second sub-blocking portion ranges from 50 degrees to 70 degrees. ### Claim 5 (depends on 1) The display panel according to claim 1, wherein a cross-section of the third sub-blocking portion has an inverted trapezoidal shape. ### Claim 6 (depends on 5) The display panel according to claim 5, wherein a bottom angle of the third sub-blocking portion ranges from 40 degrees to 60 degrees. ### Claim 7 (depends on 1) The display panel according to claim 1, wherein the first sub-blocking portion is made of a material different from a material of the second sub-blocking portion, and the third sub-blocking portion is made of a material the same as the material of the second sub-blocking portion. ### Claim 8 (depends on 7) The display panel according to claim 7, wherein the first sub-blocking portion is made of polyimide, and the second sub-blocking portion and the third sub-blocking portion are both made of photosensitive resin. ### Claim 9 (depends on 8) The display panel according to claim 8, wherein a material of the second sub-blocking portion comprises, but is not limited to, oxy-acrylate, polyester acrylate, polyether acrylate, and urethane acrylate. ### Claim 10 (depends on 1) The display panel according to claim 1, wherein a cross-section of the first sub-blocking portion has a trapezoidal shape. ### Claim 11 (depends on 10) The display panel according to claim 10, wherein a bottom angle of the first sub-blocking portion ranges from 30 degrees to 50 degrees. ### Claim 12 A display module, the display module comprising a display panel, the display module comprising: at least one blocking portion, the at least one blocking portion surrounding a display region, a cross-section of the blocking portion comprising: a first sub-blocking portion; at least one second sub-blocking portion, the at least one second sub-blocking portion disposed on the first sub-blocking portion, the at least one second sub-blocking portion partially covering the first sub-blocking portion; and at least one blocking unit, the blocking unit disposed on the second sub-blocking portion, the blocking unit comprising at least two third sub-blocking portions, the blocking unit disposed corresponding to the second sub-blocking portion, the blocking units partially covering the corresponding second sub-blocking portion, a gap between tops of each two adjacent third sub-blocking portions is smaller than a gap between each two adjacent third sub-blocking portions. ### Claim 13 (depends on 12) The display module according to claim 12, wherein the blocking portion comprises at least two second sub-blocking portions, a gap between tops of each two adjacent second sub-blocking portions is smaller than a gap between bottoms of each two adjacent second sub-blocking portions. ### Claim 14 (depends on 13) The display module according to claim 13, wherein a cross-section of the second sub-blocking portion has an inverted trapezoidal shape. ### Claim 15 (depends on 14) The display module according to claim 14, wherein a bottom angle of the second sub-blocking portion ranges from 50 degrees to 70 degrees. ### Claim 16 (depends on 12) The display module according to claim 12, wherein a cross-section of the third sub-blocking portion has an inverted trapezoidal shape. ### Claim 17 (depends on 16) The display module according to claim 16, wherein a bottom angle of the third sub-blocking portion ranges from 40 degrees to 60 degrees. ### Claim 18 (depends on 12) The display module according to claim 12, wherein the first sub-blocking portion is made of a material different from a material of the second sub-blocking portion, and the third sub-blocking portion is made of a material the same as the material of the second sub-blocking portion. ### Claim 19 (depends on 18) The display module according to claim 18, wherein the first sub-blocking portion is made of polyimide, and the second sub-blocking portion and the third sub-blocking portion are both made of photosensitive resin. ### Claim 20 An electronic device, the electronic device comprising a display module, the display module comprising a display panel, the electronic device comprising: at least one blocking portion, the at least one blocking portion surrounding a display region, a cross-section of the blocking portion comprising: a first sub-blocking portion; at least one second sub-blocking portion, the at least one second sub-blocking portion disposed on the first sub-blocking portion, the at least one second sub-blocking portion partially covering the first sub-blocking portion; and at least one blocking unit, the blocking unit disposed on the second sub-blocking portion, the blocking unit comprising at least two third sub-blocking portions, the blocking unit disposed corresponding to the second sub-blocking portion, the blocking unit partially covering the corresponding second sub-blocking portion, a gap between tops of each two adjacent third sub-blocking portions is smaller than a gap between bottoms of each two adjacent third sub-blocking portions.