# US 12,223,913 B2 · Display substrate and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,223,913 B2 - Document ID: US12223913B2 - Status: Granted - Kind: B2 - Application number: 18/021,064 - Filed: 2022-06-16 - Published: 2024-08-08 - Granted: 2025-02-11 - Earliest claimed: 2022-06-16 - Assignees: Chengdu Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd. - Applicants: Chengdu Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd. - Inventors: Yuanjie Xu; Taofeng Xie; Mingzhi Chai - Web page: https://patentgrep.com/patent/US12223913B2 ## CPC - G09G 3/3266: Details of drivers for scan electrodes - G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) - G09G 3/006: {Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309)} - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/1315: {comprising structures specially adapted for lowering the resistance} - H10K 59/873: {Encapsulations} - G09G 2330/12: Test circuits or failure detection circuits included in a display system, as permanent part thereof - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract This disclosure relates to a display substrate, including a display region and a bezel region located around the display region; the bezel region includes a bonding area located at a side of the display region, and the bezel region further includes a first region and a second region adjacent to the bonding area, and a third region opposite to the bonding area; at least one of the first region, the second region or the third region includes a bending area, and a gate driver on array (GOA) driving circuit is disposed at a side of the bending area away from the display region. This disclosure also relates to a display device. ## Claims ### Claim 1 A display substrate, comprising a display region and a bezel region located around the display region, wherein the bezel region comprises a bonding area located at a side of the display region, the bezel region further comprises a first region and a second region which are both adjacent to the bonding area, and a third region opposite to the bonding area, the first region, the second region and the third region are located at three sides of the display region respectively, the three sides being different from the side of the display region at which the bonding area is located, at least one of the first region, the second region or the third region comprises a bending area, and a gate driver on array (GOA) driving circuit is disposed at a side of the bending area away from the display region. ### Claim 2 (depends on 1) The display substrate according to claim 1, wherein a crack barrier structure is disposed at a side of the GOA driving circuit away from the bending area. ### Claim 3 (depends on 2) The display substrate according to claim 2, further comprising a crack detection circuit between the GOA driving circuit and the crack barrier structure. ### Claim 4 (depends on 1) The display substrate according to claim 1, wherein a VSS wiring is disposed at a side of the bending area close to the display region. ### Claim 5 (depends on 4) The display substrate according to claim 4, wherein the VSS wiring passes through the bending area in a direction away from the display region and extends to the side of the bending area away from the display region. ### Claim 6 (depends on 4) The display substrate according to claim 4, wherein a vinit wiring is disposed at a side of the VSS wiring away from the bending area. ### Claim 7 (depends on 4) The display substrate according to claim 4, wherein the display region comprises an anode layer, a pixel definition layer, a pixel light-emitting layer, and a cathode layer, the pixel light-emitting layer is disposed in an opening in the pixel definition layer so as to be connected to the anode layer, the cathode layer is formed at a side of the pixel light-emitting layer and the pixel definition layer away from a base substrate of the display substrate, and the cathode layer is connected to the pixel light-emitting layer; the anode layer comprises a first portion extending to the bezel region, the cathode layer comprises a second portion extending to the bezel region, an orthographic projection of the first portion onto the base substrate partially overlaps an orthographic projection of the second portion onto the base substrate, the orthographic projection of the first portion onto the base substrate partially overlaps an orthographic projection of the VSS wiring onto the base substrate, and the orthographic projection of the second portion onto the base substrate partially overlaps the orthographic projection of the VSS wiring onto the base substrate. ### Claim 8 (depends on 7) The display substrate according to claim 7, wherein a first isolation dam and a second isolation dam spaced apart from each other are disposed at a side of the second portion away from the display region, and a distance from the first isolation dam to the display region is less than a distance from the second isolation dam to the display region. ### Claim 9 (depends on 8) The display substrate according to claim 8, wherein the first isolation dam and the second isolation dam are arranged in echelon in a light emitting direction of the display substrate. ### Claim 10 (depends on 8) The display substrate according to claim 8, further comprising an encapsulation layer covering the cathode layer, the first isolation dam, and the second isolation dam, wherein a transition area is disposed between a region where an orthographic projection of the encapsulation layer onto the base substrate is located and the bending area. ### Claim 11 (depends on 1) The display substrate according to claim 1, wherein at least one of the first region, the second region or the third region comprises an under-screen camera area disposed close to the display region. ### Claim 12 (depends on 1) The display substrate according to claim 1, sequentially comprising: a base substrate; an insulating layer, wherein the insulating layer is patterned to form a crack barrier structure, and a vinit wiring, a VSS wiring, and the GOA circuit are formed at a side of the insulating layer away from the base substrate; a planarization layer, wherein the planarization layer is formed at a side of the insulating layer, the vinit wiring, the VSS wiring, and the GOA circuit away from the base substrate, and a via hole exposing the VSS wiring is formed in the planarization layer; an anode layer, wherein the anode layer is formed at a side of the planarization layer away from the base substrate, and is connected to the VSS wiring through a via hole; a pixel definition layer, wherein the pixel definition layer is formed at a side of the anode layer away from the base substrate, and an opening exposing the anode layer is formed in the pixel definition layer; a pixel light-emitting layer, wherein the pixel light-emitting layer is formed in the opening of the pixel definition layer, and is connected to the anode layer; a cathode layer, wherein the cathode layer is formed at a side of the pixel light-emitting layer and the pixel definition layer away from the base substrate, the cathode layer is connected to the pixel light-emitting layer, and a side of the cathode layer away from the display region is connected to the anode layer; and an encapsulation layer, wherein the encapsulation layer covers the cathode layer. ### Claim 13 (depends on 12) The display substrate according to claim 12, wherein a via hole is formed in the planarization layer at a position corresponding to the bending area. ### Claim 14 A display device comprising a display substrate, wherein the display substrate comprises a display region and a bezel region located around the display region, the bezel region comprises a bonding area located at a side of the display region, the bezel region further comprises a first region and a second region which are both adjacent to the bonding area, and a third region opposite to the bonding area, the first region, the second region and the third region are located at three sides of the display region respectively, the three sides being different from the side of the display region at which the bonding area is located, at least one of the first region, the second region or the third region comprises a bending area, and a GOA driving circuit is disposed at a side of the bending area away from the display region. ### Claim 15 (depends on 14) The display device according to claim 14, wherein a crack barrier structure is disposed at a side of the GOA driving circuit away from the bending area. ### Claim 16 (depends on 15) The display device according to claim 15, wherein the display substrate further comprises a crack detection circuit between the GOA driving circuit and the crack barrier structure. ### Claim 17 (depends on 14) The display device according to claim 14, wherein a VSS wiring is disposed at a side of the bending area close to the display region. ### Claim 18 (depends on 17) The display device according to claim 17, wherein the VSS wiring passes through the bending area in a direction away from the display region and extends to the side of the bending area away from the display region. ### Claim 19 (depends on 17) The display device according to claim 17, wherein a vinit wiring is disposed at a side of the VSS wiring away from the bending area. ### Claim 20 (depends on 17) The display device according to claim 17, wherein the display region comprises an anode layer, a pixel definition layer, a pixel light-emitting layer, and a cathode layer, the pixel light-emitting layer is disposed in an opening in the pixel definition layer so as to be connected to the anode layer, the cathode layer is formed at a side of the pixel light-emitting layer and the pixel definition layer away from a base substrate of the display substrate, and the cathode layer is connected to the pixel light-emitting layer; the anode layer comprises a first portion extending to the bezel region, the cathode layer comprises a second portion extending to the bezel region, an orthographic projection of the first portion onto the base substrate partially overlaps an orthographic projection of the second portion onto the base substrate, the orthographic projection of the first portion onto the base substrate partially overlaps an orthographic projection of the VSS wiring onto the base substrate, and the orthographic projection of the second portion onto the base substrate partially overlaps the orthographic projection of the VSS wiring onto the base substrate.