# US 12,604,637 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,637 B2 - Document ID: US12604637B2 - Status: Granted - Kind: B2 - Application number: 17/623,560 - Filed: 2021-12-24 - Published: 2024-02-01 - Granted: 2026-04-14 - Earliest claimed: 2021-12-17 - Assignees: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Applicants: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Yifei Liu; Taijiun Hwang - Web page: https://patentgrep.com/patent/US12604637B2 ## CPC - H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants} - H05K 5/03: Covers - H10K 59/8791: {Arrangements for improving contrast, e.g. preventing reflection of ambient light} - H10K 2102/311: {Flexible OLED} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract The present application provides a display device includes: a display panel; at least one function film disposed on at least one side of a display panel, wherein each of the function film includes a first magnetic unit; wherein display device further includes a second magnetic unit located between the display panel and each function film. The second magnetic unit is securely connected to the display panel and has a magnetic attraction force between the second magnetic unit and the first magnetic unit. The display panel is slidably connected to the function film through the second magnetic unit. ## Claims ### Claim 1 A display device, wherein the display device comprises: a display panel; and at least one function film disposed on at least one side of the display panel, wherein each function film comprises a first magnetic unit; wherein the display device further comprises a second magnetic unit located between the display panel and each of the function film, the second magnetic unit is securely connected to the display panel, and a magnetic attraction force is formed between the second magnetic unit and the first magnetic unit disposed on a same side of the display panel, and the display panel is slidably connected to the function film through the second magnetic unit; wherein the function film comprises a first function film, the first function film is a cover window disposed on a side of the display panel, the cover window comprises a cover window body and the first magnetic unit on two sides of the cover window body, the first magnetic unit is securely connected to the cover window body, and a perpendicular projection of the first magnetic unit on the display panel is located in a non-display region of the display panel; wherein the second magnetic unit is disposed between the display panel and the first function film, a perpendicular projection of the second magnetic unit on the display panel is located in the non-display region of the display panel, and a perpendicular projection of the second magnetic unit on the first function film covers the first magnetic unit; wherein the second magnetic unit is a first magnetic ink layer, the first magnetic ink layer comprises a light shielding ink and a magnetic powder doped in the light shielding ink, and a diameter of the magnetic powder is y, wherein 0.5 μm≤y≤50 μm. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the first magnetic unit is made of a metal material and has a metal mesh structure. ### Claim 3 (depends on 2) The display device according to claim 2, wherein a number of metal meshes of the first magnetic unit is x, wherein 500≤x≤1000. ### Claim 4 (depends on 1) The display device according to claim 1, wherein the display device comprises a polarizer disposed between the display panel and the first function film, and the polarizer comprises a polarizer body and the second magnetic unit disposed on a periphery of the polarizer body. ### Claim 5 (depends on 1) The display device according to claim 1, wherein the display device further comprises a backplate disposed on another side of the display panel, the function film comprises a second function film, the second function film is a metal support layer disposed on a side of the backplate away from the display panel, and the metal support layer is patterned to form the first magnetic unit. ### Claim 6 (depends on 5) The display device according to claim 5, wherein the second magnetic unit is disposed between the backplate and the second function film, the second magnetic unit is a second magnetic ink layer, and a perpendicular projection of the second magnetic ink layer on the second function film covers the first magnetic unit. ### Claim 7 (depends on 1) The display device according to claim 1, wherein the display device comprises a bending axis and two opposite side edges perpendicular to the bending axis, a sliding direction of the display panel relative to the function film is the same as an extending direction of the side edges, wherein hemming units are disposed on the side edges respectively. ### Claim 8 A display device, wherein the display device comprises: a display panel; and at least one function film disposed on at least one side of the display panel, wherein each function film comprises a first magnetic unit; wherein the display device further comprises a second magnetic unit located between the display panel and each of the function film, the second magnetic unit is securely connected to the display panel, and a magnetic attraction force is formed between the second magnetic unit and the first magnetic unit disposed on a same side of the display panel, and the display panel is slidably connected to the function film through the second magnetic unit; wherein the display device comprises two function films, the two function films are a first function film and a second function film, the first function film is disposed on a side of the display panel, and the second function film is disposed on another side of the display panel; wherein the first function film is a cover window disposed on a side of the display panel, the cover window comprises a cover window body and the first magnetic unit on two sides of the cover window body, the first magnetic unit is securely connected to the cover window body, and a perpendicular projection of the first magnetic unit on the display panel is located in a non-display region of the display panel; wherein the second magnetic unit is disposed between the display panel and the first function film, a perpendicular projection of the second magnetic unit on the display panel is located in the non-display region of the display panel, and a perpendicular projection of the second magnetic unit on the first function film covers the first magnetic unit; wherein the second magnetic unit is a first magnetic ink layer, the first magnetic ink layer comprises a light shielding ink and a magnetic powder doped in the light shielding ink, and a diameter of the magnetic powder is y, wherein 0.5 μm≤y≤50 μm. ### Claim 9 (depends on 8) The display device according to claim 8, wherein the first magnetic unit is made of a metal material and has a metal mesh structure. ### Claim 10 (depends on 9) The display device according to claim 9, wherein a number of metal meshes of the first magnetic unit is x, wherein 500≤x≤1000. ### Claim 11 (depends on 8) The display device according to claim 8, wherein the display device comprises a polarizer disposed between the display panel and the first function film, and the polarizer comprises a polarizer body and the second magnetic unit disposed on a periphery of the polarizer body. ### Claim 12 (depends on 8) The display device according to claim 8, wherein the display device further comprises a backplate disposed on another side of the display panel, the second function film is a metal support layer disposed on a side of the backplate away from the display panel, and the metal support layer is patterned to form the first magnetic unit. ### Claim 13 (depends on 12) The display device according to claim 12, wherein the second magnetic unit is disposed between the backplate and the second function film, the second magnetic unit is a second magnetic ink layer, and a perpendicular projection of the second magnetic ink layer on the second function film covers the first magnetic unit. ### Claim 14 A display device, wherein the display device comprises: a display panel; and at least one function film disposed on at least one side of the display panel, wherein each function film comprises a first magnetic unit; wherein the display device further comprises a second magnetic unit located between the display panel and each of the function film, the second magnetic unit is securely connected to the display panel, and a magnetic attraction force is formed between the second magnetic unit and the first magnetic unit disposed on a same side of the display panel, and the display panel is slidably connected to the function film through the second magnetic unit; wherein the display device comprises two function films, the two function films are a first function film and a second function film disposed on the display panel; wherein the first function film is a cover window disposed on a side of the display panel, the cover window comprises a cover window body and the first magnetic unit on two sides of the cover window body, the first magnetic unit is securely connected to the cover window body, and a perpendicular projection of the first magnetic unit on the display panel is located in a non-display region of the display panel; wherein the second magnetic unit is disposed between the display panel and the first function film, a perpendicular projection of the second magnetic unit on the display panel is located in the non-display region of the display panel, and a perpendicular projection of the second magnetic unit on the first function film covers the first magnetic unit; wherein the second magnetic unit is a first magnetic ink layer, the first magnetic ink layer comprises a light shielding ink and a magnetic powder doped in the light shielding ink, and a diameter of the magnetic powder is y, wherein 0.5 μm≤y≤50 μm. ### Claim 15 (depends on 14) The display device according to claim 14, wherein the first magnetic unit is made of a metal material and has a metal mesh structure. ### Claim 16 (depends on 15) The display device according to claim 15, wherein a number of metal meshes of the first magnetic unit is x, wherein 500≤x≤1000. ### Claim 17 (depends on 14) The display device according to claim 14, wherein the display device comprises a polarizer disposed between the display panel and the first function film, and the polarizer comprises a polarizer body and the second magnetic unit disposed on a periphery of the polarizer body. ### Claim 18 (depends on 14) The display device according to claim 14, wherein the display device further comprises a backplate disposed on another side of the display panel, the second function film is a metal support layer disposed on a side of the backplate away from the display panel, and the metal support layer is patterned to form the first magnetic unit. ### Claim 19 (depends on 18) The display device according to claim 18, wherein the second magnetic unit is disposed between the backplate and the second function film, the second magnetic unit is a second magnetic ink layer, and a perpendicular projection of the second magnetic ink layer on the second function film covers the first magnetic unit.