# US 12,114,524 B2 · Display panel 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 12,114,524 B2 - Document ID: US12114524B2 - Status: Granted - Kind: B2 - Application number: 17/732,981 - Filed: 2022-04-29 - Published: 2022-08-11 - Granted: 2024-10-08 - Earliest claimed: 2020-05-08 - Assignees: KunShan Go-Visionox Opto-Electronics Co., Ltd - Applicants: KunShan Go-Visionox Opto-Electronics Co., Ltd - Inventors: Xuyang Fang; Chao Chi Peng; Mingxing Liu; Shizhen Feng; Panpan Wang; Zhiyuan Zhang; Shuaiyan Gan - Web page: https://patentgrep.com/patent/US12114524B2 ## CPC - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10F 39/806: {Optical elements or arrangements associated with the image sensors} - H10F 77/413: {directly associated or integrated with the devices, e.g. back reflectors (directly associated or integrated with photovoltaic cells H10F77/42)} - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 59/65: OLEDs integrated with inorganic image sensors - H10K 59/873: {Encapsulations} - H10K 59/8791: {Arrangements for improving contrast, e.g. preventing reflection of ambient light} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION ## Abstract A display panel and a display device, where the display panel includes a substrate, an insulation layer, a conductive layer, a first planarization layer, an OLED layer and an encapsulation layer which are stacked in sequence, where a plurality of first grooves are formed in the conductive layer, and the first planarization layer fills the first grooves and covers the conductive layer; the display panel further includes a compensation layer, where a plurality of second grooves are formed in the compensation layer, and projection of the compensation layer on the substrate at least overlaps with projection of part of the first grooves on the substrate. ## Claims ### Claim 1 A display panel, comprising: a substrate, an insulation layer, a conductive layer, a first planarization layer, an OLED layer and an encapsulation layer which are stacked in sequence, wherein a plurality of first grooves are formed in the conductive layer, and the first planarization layer fills the first grooves and covers the conductive layer; and the display panel further comprising a compensation layer, wherein a plurality of second grooves are formed in the compensation layer, and a projection of the compensation layer on the substrate at least overlaps with projection of part of the first grooves on the substrate. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein the projection of the compensation layer on the substrate coincides with the projection of the first grooves on the substrate. ### Claim 3 (depends on 2) The display panel according to claim 2, wherein the compensation layer and the conductive layer are made of different materials, and the compensation layer comprises a first compensation layer and a second compensation layer which are stacked in sequence, the first compensation layer being configured to compensate an amplitude, and the second compensation layer being configured to compensate a phase. ### Claim 4 (depends on 2) The display panel according to claim 2, wherein the first compensation layer is a multilayer formed in a stacked manner. ### Claim 5 (depends on 1) The display panel according to claim 1, wherein the compensation layer and the conductive layer are made of same material. ### Claim 6 (depends on 1) The display panel according to claim 1, wherein the compensation layer has a thickness equal to a thickness of the conductive layer. ### Claim 7 (depends on 1) The display panel according to claim 1, wherein the compensation layer comprises a silicon oxide layer, a silicon nitride layer, a silicon oxynitride layer, a single crystal silicon layer or an indium tin oxide layer. ### Claim 8 (depends on 1) The display panel according to claim 1, wherein the compensation layer is provided between the insulation layer and the conductive layer; or the compensation layer is provided between the first planarization layer and the OLED layer. ### Claim 9 (depends on 1) The display panel according to claim 1, wherein the compensation layer is provided in the substrate, the insulation layer or the encapsulation layer. ### Claim 10 (depends on 1) The display panel according to claim 1, wherein the substrate is a multilayer formed in a stacked manner, and the compensation layer is provided between any two adjacent layers of the substrate. ### Claim 11 (depends on 1) The display panel according to claim 1, wherein the insulation layer is a multilayer formed in a stacked manner, and the compensation layer is provided between any two adjacent layers of the insulation layer. ### Claim 12 (depends on 1) The display panel according to claim 1, wherein the encapsulation layer is a multilayer formed in a stacked manner, and the compensation layer is provided between any two adjacent layers of the encapsulation layer. ### Claim 13 (depends on 1) The display panel according to claim 1, wherein the substrate comprises a base, a first substrate insulation layer and a second substrate insulation layer, the compensation layer is provided between the first substrate insulation layer and the second substrate insulation layer, or the compensation layer is provided between the first substrate insulation layer and the base. ### Claim 14 (depends on 1) The display panel according to claim 1, wherein the insulation layer comprises a gate insulation layer, a capacitor insulation layer and an interlayer dielectric layer, the compensation layer is provided between the gate insulation layer and the capacitor insulation layer, or the compensation layer is provided between the capacitor insulation layer and the interlayer dielectric layer. ### Claim 15 (depends on 1) The display panel according to claim 1, wherein the encapsulation layer comprises a first encapsulating insulation layer and a second encapsulating insulation layer, and the compensation layer is provided between the first encapsulating insulation layer and the second encapsulating insulation layer. ### Claim 16 (depends on 1) The display panel according to claim 1, wherein the compensation layer is detachably provided on the encapsulation layer. ### Claim 17 (depends on 1) The display panel according to claim 1, further comprising a second planarization layer, wherein the second planarization layer fills the second grooves and covers the compensation layer. ### Claim 18 (depends on 1) A display device comprising the display panel according to claim 1.