# US 12,217,656 B2 · Display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,656 B2 - Document ID: US12217656B2 - Status: Granted - Kind: B2 - Application number: 17/758,224 - Filed: 2022-06-13 - Published: 2024-07-04 - Granted: 2025-02-04 - Earliest claimed: 2022-05-24 - Assignees: Tcl China Star Optoelectronics Technology Co., Ltd. - Applicants: Tcl China Star Optoelectronics Technology Co., Ltd. - Inventors: Daobing Hu - Web page: https://patentgrep.com/patent/US12217656B2 ## CPC - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions - 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) ## Abstract Disclosed is a display panel, which adopts two display screens arranged by splicing. The display screen includes a display area and a non-display area on at least one side of the display area. An LED substrate is disposed on the non-display area. The LED substrate includes a substrate and a light emitting device disposed on the substrate. A cover plate is provided on at least two display screens. A groove is provided on one side of the cover plate close to the LED substrate. A side surface of the substrate is disposed opposite to a groove wall of the groove. A part of the groove wall surface corresponding to the side surface of the substrate is a reflection interface. ## Claims ### Claim 1 A display panel, comprising: at least two display screens, wherein the at least two display screens are spliced, and each of the at least two display screens comprises a display area and a non-display area located on at least one side of the display area; light emitting diode (LED) substrates, wherein the LED substrates are disposed on the non-display area, and each of the LED substrates comprises a substrate and a light emitting device disposed on the substrate; and a cover plate, wherein the cover plate is disposed on the at least two display screens, a groove is formed on a side of the cover plate close to each of the LED substrates, and each of the LED substrates is disposed in the groove; wherein a side surface of the substrate is disposed opposite to a groove wall of the groove, and a part of a groove wall surface corresponding to the side surface of the substrate is a reflection interface; wherein at a splicing portion between adjacent two of the display screens, two of the LED substrates correspond to and are disposed on the non-display areas of the adjacent two of the display screens respectively; wherein the groove comprises a first sub-groove and a second sub-groove that are spaced from each other, the first sub-groove receives one of the LED substrates corresponding to the non-display areas of the adjacent two of the display screens, and the second sub-groove receives the other of the LED substrates corresponding to the non-display areas of the adjacent two of the display screens. ### Claim 2 (depends on 1) The display panel of claim 1, wherein the reflection interface is a smooth groove wall surface. ### Claim 3 (depends on 1) The display panel of claim 1, wherein there is a medium between the groove wall surface and each of the LED substrates, a refractive index of the cover plate is greater than a refractive index of the medium, and the groove wall surface and the medium form the reflection interface. ### Claim 4 (depends on 3) The display panel of claim 3, wherein the medium comprises air or a transparent solid material. ### Claim 5 (depends on 4) The display panel of claim 4, wherein in two adjacent display screens, there is a gap between the two display screens, and each of the LED substrates is disposed on the two adjacent display screens and blocks the gap. ### Claim 6 (depends on 5) The display panel of claim 5, wherein the groove and the gap are arranged overlappingly. ### Claim 7 (depends on 5) The display panel of claim 5, wherein the transparent solid material fills the gap. ### Claim 8 (depends on 1) The display panel of claim 1, wherein a resolution of each of the LED substrates is same as a resolution of each of the at least two display screens. ### Claim 9 A display panel, comprising: at least two display screens, wherein the at least two display screens are spliced, and each of the at least two display screens comprises a display area and a non-display area located on at least one side of the display area; light emitting diode (LED) substrates, wherein the LED substrates are disposed on the non-display area, and each of the LED substrates comprises a substrate and a light emitting device disposed on the substrate; and a cover plate, wherein the cover plate is disposed on the at least two display screens, a groove is formed on a side of the cover plate close to each of the LED substrates, and each of the LED substrates is disposed in the groove; wherein a side surface of the substrate is disposed opposite to a groove wall of the groove, and a part of a groove wall surface corresponding to the side surface of the substrate is a reflection interface; wherein a resolution of each of the LED substrates is same as a resolution of each of the at least two display screens; wherein the reflection interface is a smooth groove wall surface; wherein at a splicing portion between adjacent two of the display screens, two of the LED substrates correspond to and are disposed on the non-display areas of the adjacent two of the display screens respectively; wherein the groove comprises a first sub-groove and a second sub-groove that are spaced from each other, the first sub-groove receives one of the LED substrates corresponding to the non-display areas of the adjacent two of the display screens, and the second sub-groove receives the other of the LED substrates corresponding to the non-display areas of the adjacent two of the display screens. ### Claim 10 (depends on 9) The display panel of claim 9, wherein there is a medium between the groove wall surface and each of the LED substrates, a refractive index of the cover plate is greater than a refractive index of the medium, and the groove wall surface and the medium form the reflection interface. ### Claim 11 (depends on 10) The display panel of claim 10, wherein the medium comprises air or a transparent solid material. ### Claim 12 (depends on 11) The display panel of claim 11, wherein in two adjacent display screens, there is a gap between the two display screens, and each of the LED substrates is disposed on the two adjacent display screens and blocks the gap. ### Claim 13 (depends on 12) The display panel of claim 12, wherein the groove and the gap are arranged overlappingly. ### Claim 14 (depends on 12) The display panel of claim 12, wherein the transparent solid material fills the gap. ### Claim 15 (depends on 9) The display panel of claim 9, wherein the light emitting device comprises a sub-millimeter light emitting diode or a micrometer light emitting diode. ### Claim 16 (depends on 9) The display panel of claim 9, wherein each of the at least two display screens comprises a liquid crystal display screen or an LED direct-display display screen.