# US 12,016,218 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 12,016,218 B2 - Document ID: US12016218B2 - Status: Granted - Kind: B2 - Application number: 17/266,151 - Filed: 2020-11-23 - Published: 2022-09-29 - Granted: 2024-06-18 - Earliest claimed: 2020-11-13 - Assignees: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Wenqiang Wang - Web page: https://patentgrep.com/patent/US12016218B2 ## CPC - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/352: {the areas of the RGB subpixels being different} - G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED} - Y02E 10/549: Organic PV cells - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A display panel and a display device are provided. The display panel includes a unit island, a connecting part, a light emitting unit, and a signal line. The connecting part is connected to each side of the unit island, and each connecting part includes a bending part disposed in at least three bending directions and at least one straight part. The display panel is easier to be deformed and has a better deformation effect. Moreover, the components of the display panel will not interfere with each other, which effectively enhance the expansion performance and reliability of the panel. ## Claims ### Claim 1 A display panel, comprising: a substrate; a plurality of unit islands, wherein the unit islands are arranged in an array in a first direction and a second direction of the substrate, and each of the unit islands is separated from each other; a plurality of connecting parts, wherein the connecting parts connect two adjacent unit islands with each other; a light emitting unit, wherein the light emitting unit is disposed on the unit island, and the light emitting unit further comprises a plurality of light emitting sub-pixels; and a signal line, wherein the signal line is disposed on the connecting part and electrically connected to the light emitting unit; wherein each of the connecting parts is connected to each side of corresponding unit island, a starting end of the connecting part is disposed at a center position of the each side of the unit island, and each of the connecting parts comprises a bending part disposed in at least three bending directions and at least one straight part; wherein the display panel further comprises a hollow area between the unit island and the connecting part, wherein the bending part comprises a first bending part, a second bending part, and a third bending part, and wherein the first bending part is connected to the side of the unit island, the second bending part is connected to one end of the first bending part, one end of the straight part is connected to one end of the second bending part, and the other end of the straight part is connected to one end of the third bending part, wherein the connecting part comprises a first connecting part and a second connecting part, and the first connecting part and the second connecting part are respectively disposed on two adjacent sides of the unit island, and a distance between the third bending part of the first connecting part and the second bending part of the second connecting part is less than a distance between the straight part of the first connecting part and the first bending part or the second bending part of the first connecting part. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein an angle between a distance from a center of the circle corresponding to an arc of an inner edge of the first bending part to a foot of perpendicular of the center of the circle on the side corresponding to the first bending part and a distance from the center of the circle to a midpoint of the arc is less than 90°. ### Claim 3 (depends on 1) The display panel according to claim 1, wherein a radius of an arc corresponding to an inner edge of the first bending part is greater than a radius of an arc corresponding to an inner edge of the second bending part. ### Claim 4 (depends on 1) The display panel according to claim 1, wherein the two adjacent unit islands are connected to each other by the third bending part. ### Claim 5 (depends on 1) The display panel according to claim 1, wherein the connecting part further comprises a transition part, one end of the transition part is connected to the side of the unit island, the other end of the transition part is connected to one end of the first bending part, and one end of the transition part and the side of the unit island are provided with rounded corners. ### Claim 6 (depends on 1) The display panel according to claim 1, wherein the connecting parts on the two opposite sides of the unit island are disposed symmetrically corresponding to a geometric center of the unit island. ### Claim 7 A display panel, comprising: a substrate; a plurality of unit islands, wherein the unit islands are arranged in an array in a first direction and a second direction of the substrate, and each of the unit islands is separated from each other; a plurality of connecting parts, wherein the connecting parts connect the two adjacent unit islands with each other; a light emitting unit, wherein the light emitting unit is disposed on the unit island; and a signal line, wherein the signal line is disposed on the connecting part and electrically connected to the light emitting unit; wherein each of the connecting parts is connected to each side of corresponding unit island, a starting end of the connecting part is disposed at a center position of the each side of the unit island, and each of the connecting parts comprises a bending part disposed in at least three bending directions and at least one straight part, wherein the bending part comprises a first bending part, a second bending part, and a third bending part, and wherein the first bending part is connected to the side of the unit island, the second bending part is connected to one end of the first bending part, one end of the straight part is connected to one end of the second bending part, and the other end of the straight part is connected to one end of the third bending part, wherein the connecting part comprises a first connecting part and a second connecting part, and the first connecting part and the second connecting part are respectively disposed on two adjacent sides of the unit island, and a distance between the third bending part of the first connecting part and the second bending part of the second connecting part is less than a distance between the straight part of the first connecting part and the first bending part or the second bending part of the first connecting part. ### Claim 8 (depends on 7) The display panel according to claim 7, wherein an angle formed between a distance from a center of the circle corresponding to an arc of an inner edge of the first bending part to a foot of perpendicular of the center of the circle on the side corresponding to the first bending part and a distance from the center of the circle to a midpoint of the arc is less than 90°. ### Claim 9 (depends on 7) The display panel according to claim 7, wherein a radius of an arc corresponding to an inner edge of the first bending part is greater than a radius of an arc corresponding to an inner edge of the second bending part. ### Claim 10 (depends on 7) The display panel according to claim 7, wherein the two adjacent unit islands are connected to each other by the third bending part. ### Claim 11 (depends on 7) The display panel according to claim 7, wherein the display panel further comprises a hollow area between the unit island and the connecting part, and the hollow area is filled with an elastic organic layer. ### Claim 12 (depends on 7) The display panel according to claim 7, wherein the connecting part further comprises a transition part, one end of the transition part is connected to the side of the unit island, the other end of the transition part is connected to one end of the first bending part, and one end of the transition part and the side of the unit island are provided with rounded corners. ### Claim 13 (depends on 7) The display panel according to claim 7, wherein the connecting parts on the two opposite sides of the unit island are disposed symmetrically corresponding to a geometric center of the unit island. ### Claim 14 (depends on 7) The display device according to claim 7, wherein a width of the bending part of the connecting part is the same as a width of the straight part of the connecting part. ### Claim 15 (depends on 7) The display device according to claim 7, wherein the light emitting unit comprises a plurality of light emitting sub-pixels, the light emitting sub-pixels comprises a red sub-pixel, a blue sub-pixel, and a green sub-pixel, and wherein an area of a light emitting region corresponding to the blue sub-pixel is larger than an area of a light emitting region corresponding to the red sub-pixel, the area of the light emitting region corresponding to the blue sub-pixel is larger than an area of a light emitting region corresponding to the green sub-pixel, and an arrangement shape of a structure of diamond shape formed by the blue sub-pixel, the red sub-pixel, and the green sub-pixel is the same as an arrangement shape of a structure of diamond shape formed by each of the unit islands.