# US 12,001,748 B1 · Display apparatus and display panel with improved alignment in spliced panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,001,748 B1 - Document ID: US12001748B1 - Status: Granted - Kind: B1 - Application number: 18/112,509 - Filed: 2023-02-22 - Published: 2024-06-13 - Granted: 2024-06-04 - Earliest claimed: 2022-12-12 - Assignees: Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd. - Applicants: Hubei Yangtze Industrial Innovation Center of Advanced Display Co., LTD. - Inventors: Donghua Chen - Web page: https://patentgrep.com/patent/US12001748B1 ## CPC - G06F 3/1446: {display composed of modules, e.g. video walls} - G06F 3/147: using display panels - 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 2320/0686: with two or more screen areas displaying information with different brightness or colours - G09G 2360/04: Display device controller operating with a plurality of display units - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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 A display apparatus and a display panel are provided in the present disclosure. The display apparatus includes a plurality of display panels. A display panel of the plurality of display panels includes a display region and a binding region; the display region includes a first side and a second side which are opposite to each other; the binding region is on the first side; the plurality of display panels includes a first display panel and a second display panel; and a second side of the first display panel is spliced with a second side of the second display panel, where the plurality of display panels includes redundant electrodes. ## Claims ### Claim 1 A display apparatus, comprising: a plurality of display panels, wherein: a display panel of the plurality of display panels includes a display region and a binding region; the display region includes a first side and a second side which are opposite to each other; the binding region is on the first side; the plurality of display panels includes a first display panel and a second display panel; and a second side of the first display panel is spliced with a second side of the second display panel, wherein the plurality of display panels includes redundant electrodes, wherein a redundant electrode is one of a pair of anodes disposed on two opposite sides of a cathode, and the redundant electrode is not connected to a light-emitting element while the remaining one of the pair of the anodes and the cathode are connected to a light-emitting element. ### Claim 2 (depends on 1) The display apparatus according to claim 1, wherein: binding regions of the display apparatus are symmetrical with respect to a splicing gap. ### Claim 3 (depends on 1) The display apparatus according to claim 1, wherein: in light-emitting elements on two sides of a splicing gap in the display apparatus, light-emitting elements of at least one same color are asymmetrical with respect to the splicing gap. ### Claim 4 A display apparatus, comprising a plurality of display panels, wherein: a display panel of the plurality of display panels includes a display region and a binding region; the display region includes a first side and a second side which are opposite to each other; the binding region is on the first side; the plurality of display panels includes a first display panel and a second display panel; a second side of the first display panel is spliced with a second side of the second display panel, wherein the plurality of display panels includes redundant electrodes; the display panel includes light-emitting elements and a plurality of electrode units which is arranged in an array in the display region, wherein the light-emitting elements include a first-color light-emitting element and a second-color light-emitting element; an electrode unit of the plurality of electrode units includes a first electrode group and a second electrode group; the first electrode group includes a first anode, a first cathode and a second anode; and the second electrode group includes a third anode, a second cathode and a fourth anode; in the first display panel, the first electrode group and the second electrode group are sequentially arranged along a first direction; the first anode, the first cathode and the second anode are arranged sequentially along a second direction; the third anode, the second cathode and the fourth anode are arranged sequentially along the second direction; the first anode and the first cathode are electrically connected to the first-color light-emitting element; and the third anode and the second cathode are electrically connected to the second-color light-emitting element; and in the second display panel, the first electrode group and the second electrode group are arranged along a direction opposite to the first direction; the first anode, the first cathode and the second anode are arranged sequentially along a direction opposite to the second direction; the third anode, the second cathode and the fourth anode are arranged sequentially along the direction opposite to the second direction; the fourth anode and the second cathode are electrically connected to the first-color light-emitting element; and the second anode and the first cathode are electrically connected to the second-color light-emitting element, wherein: the first direction is perpendicular to the second direction; and both the first direction and the second direction are in parallel with a plane of the display panel. ### Claim 5 (depends on 4) The display apparatus according to claim 4, wherein: the light-emitting elements are light-emitting diodes. ### Claim 6 (depends on 4) The display apparatus according to claim 4, wherein: a first voltage difference is between the first anode and the first cathode; a second voltage difference is between the second anode and the first cathode; the second voltage difference is between the third anode and the second cathode; and the first voltage difference is between the fourth anode and the second cathode, wherein: the first voltage difference is a drive voltage of the first-color light-emitting element, and the second voltage difference is a drive voltage of the second-color light-emitting element. ### Claim 7 (depends on 4) The display apparatus according to claim 4, wherein: a distance between any two adjacent light-emitting elements of the light-emitting elements in the display apparatus is same. ### Claim 8 (depends on 4) The display apparatus according to claim 4, wherein: binding regions in the display apparatus are arranged along the second direction; and first-color light-emitting elements and second-color light-emitting elements are alternately and repeatedly arranged one after another along the first direction. ### Claim 9 (depends on 8) The display apparatus according to claim 8, wherein: in the first display panel and the second display panel, the first anode in a same electrode group is on a side of the first cathode adjacent to a splicing gap, and the second anode is on a side of the first cathode away from the splicing gap. ### Claim 10 (depends on 8) The display apparatus according to claim 8, wherein: in the first display panel and the second display panel, the first anode is on a side of the first cathode away from a splicing gap, and the second anode is on a side of the first cathode adjacent to the splicing gap. ### Claim 11 (depends on 8) The display apparatus according to claim 8, wherein: the display panel includes a third electrode group is between the first electrode group and the second electrode group, and the third electrode group includes a fifth anode and a third cathode; and the light-emitting elements further includes a third-color light-emitting element between the first-color light-emitting element and the second-color light-emitting element; and the fifth anode and the third cathode are electrically connected to the third-color light-emitting element. ### Claim 12 (depends on 4) The display apparatus according to claim 4, wherein: binding regions in the display apparatus are arranged along the first direction; and first-color light-emitting elements and second-color light-emitting elements are alternately and repeatedly arranged one after another along the first direction. ### Claim 13 (depends on 12) The display apparatus according to claim 12, wherein: the display panel includes a third electrode group is between the first electrode group and the second electrode group, and the third electrode group includes a fifth anode and a third cathode; and the light-emitting elements further includes a third-color light-emitting element between the first-color light-emitting element and the second-color light-emitting element; and the fifth anode and the third cathode are electrically connected to the third-color light-emitting element. ### Claim 14 (depends on 11) The display apparatus according to claim 11, wherein: a third voltage difference, between the fifth anode and the third cathode, is a drive voltage of the third-color light-emitting element. ### Claim 15 (depends on 11) The display apparatus according to claim 11, wherein: along the second direction, a first distance is between the first cathode and the fifth anode; a second distance is between the first cathode and the third cathode; and the first distance is same as the second distance. ### Claim 16 A display panel, comprising: a display region and a binding region, wherein the display region includes a first side and a second side which are opposite to each other; and the binding region is on the first side; and redundant electrodes, wherein a redundant electrode is one of a pair of anodes disposed on two opposite sides of a cathode, and the redundant electrode is not connected to a light-emitting element while the remaining one of the pair of the anodes and the cathode are connected to a light-emitting element. ### Claim 17 (depends on 16) The display panel according to claim 16, further including: light-emitting elements and a plurality of electrode units which is arranged in an array in the display region, wherein the light-emitting elements include a first-color light-emitting element and a second-color light-emitting element; an electrode unit of the plurality of electrode units includes a first electrode group and a second electrode group; the first electrode group includes a first anode, a first cathode and a second anode; and the second electrode group includes a third anode, a second cathode and a fourth anode; and the first anode and the first cathode are electrically connected to the first-color light-emitting element; and the third anode and the second cathode are electrically connected to the second-color light-emitting element; or the fourth anode and the second cathode are electrically connected to the first-color light-emitting element; and the second anode and the first cathode are electrically connected to the second-color light-emitting element. ### Claim 18 (depends on 17) The display panel according to claim 17, wherein: a first voltage difference is between the first anode and the first cathode; a second voltage difference is between the second anode and the first cathode; the second voltage difference is between the third anode and the second cathode; and the first voltage difference is between the fourth anode and the second cathode, wherein: the first voltage difference is a drive voltage of the first-color light-emitting element, and the second voltage difference is a drive voltage of the second-color light-emitting element. ### Claim 19 (depends on 17) The display panel according to claim 17, further including: a third electrode group between the first electrode group and the second electrode group, wherein: the third electrode group includes a fifth anode and a third cathode; and the light-emitting elements further includes a third-color light-emitting element between the first-color light-emitting element and the second-color light-emitting element; and the fifth anode and the third cathode are electrically connected to the third-color light-emitting element. ### Claim 20 (depends on 19) The display panel according to claim 19, wherein: a third voltage difference, between the fifth anode and the third cathode, is a drive voltage of the third-color light-emitting element.