# US 10,768,883 B2 · Display panel and multi display device having at least display panels including a transparent region in a non-display region > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,768,883 B2 - Document ID: US10768883B2 - Status: Granted - Kind: B2 - Application number: 15/218,863 - Filed: 2016-07-25 - Published: 2017-02-02 - Granted: 2020-09-08 - Earliest claimed: 2015-07-31 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Il-Gi Jeong - Web page: https://patentgrep.com/patent/US10768883B2 ## CPC - G06F 3/1446: {display composed of modules, e.g. video walls} - G06F 1/1647: {including at least an additional display (G06F1/1692 takes precedence)} - G09G 3/3225: using an active matrix - H10K 59/18: Tiled displays - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions - G09G 2300/04: Structural and physical details of display devices - G09G 2300/043: Compensation electrodes or other additional electrodes in matrix displays related to distortions or compensation signals, e.g. for modifying TFT threshold voltage in column driver - 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) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A multi display device can include a first display panel including a display region having a plurality of pixels for displaying an image and a non-display region at a periphery of the display region; and a second display panel including a display region having a plurality of pixels for displaying an image and a non-display region at the periphery of the display region of the second display panel, wherein a portion of the non-display region of the first display panel includes a transparent region, wherein the second display panel is disposed such that a portion of the display region of the second display panel overlaps the transparent region of the non-display region of the first display panel. ## Claims ### Claim 1 A multi display device comprising: a first display panel including a display region having a plurality of pixels for displaying an image and a non-display region at a periphery of the display region; and a second display panel including a display region having a plurality of pixels for displaying an image and a non-display region at a periphery of the display region of the second display panel, wherein a portion of the non-display region of the first display panel includes a transparent region, wherein the second display panel is disposed such that a portion of the display region of the second display panel overlaps the transparent region of the non-display region of the first display panel, wherein the transparent region of the non-display region of the first display panel includes a plurality of conductive lines made of a transparent material, wherein the first and second display panels include an overlapping portion where a first side of the first display panel is disposed over a second side of the second display panel to overlap the second display panel, wherein, in the overlapping portion, a distance between an end of the first display panel and a boundary of the display region of the second display panel is greater than a distance between the end of the first display panel and a boundary of the display region of the first display panel, wherein the image displayed by the display region of the second display panel is displayed through the transparent region of the non-display region of the first display panel, wherein a width of the non-display region along a second side of the first display panel is different from a width of the transparent region of the non-display region along the first side of the first display panel, wherein a gate link line connected to a gate driver for transmitting a gate signal is disposed in the transparent region of the non-display region of the first display panel and the gate link line includes a transparent conductive material, and wherein a data link line connected to a data driver for transmitting a data signal is disposed in the transparent region of the non-display region of the first display panel and the data link line includes a transparent conductive material. ### Claim 2 (depends on 1) The multi display device of claim 1, wherein, in the overlapping portion, an end of the second display panel includes the display region and the non-display region of the second display panel. ### Claim 3 (depends on 1) The multi display device of claim 1, further comprising a third display panel, wherein a portion of the non-display region of the second display panel includes a transparent region, and wherein the third display panel is disposed such that a portion of a display region of the third display panel overlaps the transparent region of the non-display region of the second display panel. ### Claim 4 (depends on 1) The multi display device of claim 1, wherein the first display panel includes the data driver, and wherein the gate driver and the data driver are disposed on a rear surface of the display region of the first display panel. ### Claim 5 (depends on 1) The multi display device of claim 1, wherein the first display panel includes a first substrate, and a second substrate facing the first substrate and extending to the overlapping portion, and wherein, in the overlapping portion, a portion of the second substrate includes a transparent region. ### Claim 6 (depends on 1) The multi display device of claim 1, wherein the first and second display panels are of different display types. ### Claim 7 (depends on 1) The multi display device of claim 1, wherein the first display panel includes a first substrate, an organic emitting layer on the first substrate and an adhesive layer and a second substrate on the organic emitting layer, and wherein, in the transparent region of the non-display region of the first display panel, the adhesive layer extends to the transparent region and includes a transparent material. ### Claim 8 (depends on 1) The multi display device of claim 1, wherein the first display panel includes a first substrate, a second substrate facing the first substrate, and a side seal disposed between the first and second substrates and including a transparent material. ### Claim 9 (depends on 1) The multi display device of claim 1, wherein the first display panel includes a first substrate, and wherein at least one of upper and lower edges of an end portion of the first substrate has a round shape. ### Claim 10 (depends on 1) The multi display device of claim 1, further comprising a third display panel, wherein the third display panel is disposed to be adjacent to the first display panel, and wherein the third display panel is disposed such that a portion of a display region of the third display panel overlaps the transparent region of the non-display region of the first display panel. ### Claim 11 (depends on 10) The multi display device of claim 10, wherein a size of the display region of the first display panel is smaller than a size of the display region of one of the second and third display panels. ### Claim 12 (depends on 10) The multi display device of claim 10, further comprising a step difference controlling portion disposed under the first display panel and adjusting a step difference between the first and second display panels and between the first and third display panels. ### Claim 13 (depends on 1) The multi display device of claim 1, further comprising third and fourth display panels, wherein a portion of a non-display region of each of the third and fourth display panels includes a transparent region, wherein the third display panel is disposed to be adjacent to the first display panel, wherein the third display panel is disposed such that a portion of the display region of the third display panel overlaps the transparent region of the non-display region of the first display panel, wherein the fourth display panel is disposed to be adjacent to the second display panel, and wherein a portion of a non-display region of the second display panel includes a transparent region, and the fourth display panel is disposed such that a portion of a display region of the fourth display panel overlaps the transparent region of the non-display region of the second display panel. ### Claim 14 (depends on 13) The multi display device of claim 13, wherein a portion of the non-display region of each of the second and third display panel includes a chamfer. ### Claim 15 (depends on 1) The multi display device of claim 1, further comprising a side seal disposed under the transparent region of the non-display region of the first display panel to reduce a step difference of a substrate and an encapsulation substrate of the first display panel. ### Claim 16 A display device, comprising: a first display panel and a second display panel, each of the first and second display panels including: a display region having a plurality of pixels for displaying an image, and a non-display region at a periphery of the display region; a gate driver configured to supply a gate signal to the display region; and a data driver configured to supply a data signal to the display region, wherein the non-display region of at least one of the first and second display panels includes a plurality of conductive lines, wherein a portion of the non-display region includes a transparent region, wherein the plurality of conductive lines are made of a transparent material, wherein the first and second display panels include an overlapping portion where a first side of the first display panel is disposed over a second side of the second display panel to overlap the second display panel, wherein, in the overlapping portion, a distance between an end of the first display panel and a boundary of the display region of the second display panel is greater than a distance between the end of the first display panel and a boundary of the display region of the first display panel, wherein the image displayed by the display region of the second display panel is displayed through the transparent region of the non-display region of the first display panel, wherein a width of the non-display region along a second side of the first display panel is different from a width of the transparent region of the non-display region along the first side of the first display panel, wherein a gate link line connected to the gate driver for transmitting the gate signal is disposed in the transparent region of the non-display region of the first display panel and the gate link line includes a transparent conductive material, and wherein a data link line connected to the data driver for transmitting the data signal is disposed in the transparent region of the non-display region of the first display panel and the data link line includes a transparent conductive material. ### Claim 17 (depends on 16) The display device of claim 16, wherein the plurality of conductive lines include a power line, a signal line and a dummy line. ### Claim 18 (depends on 16) The display device of claim 16, wherein the display panel includes a first substrate, an organic emitting layer on the first substrate and an adhesive layer and a second substrate on the organic emitting layer, and wherein, in the transparent region of the non-display region of the display panel, the adhesive layer extends to the transparent region and includes a transparent material. ### Claim 19 (depends on 16) The display device of claim 16, wherein the display panel includes a first substrate, a second substrate facing the first substrate, and a side seal disposed between the first and second substrates and including a transparent material. ### Claim 20 (depends on 16) The display device of claim 16, wherein the display panel includes a first substrate, and wherein at least one of upper and lower edges of an end portion of the first substrate has a round shape. ### Claim 21 A multi display device comprising: a first display panel including a display region and a non-display region at a periphery of the display region, and the non-display region of the first display panel includes a transparent region at a side portion thereof; and a second display panel including a display region and a non-display region at a periphery of the display region, and the non-display region of the second display panel includes a transparent region at a side portion thereof, wherein the display region of a first side of the first display panel overlaps the non-display region and the display region of a second of the second display panel and a portion of the display region of second side of the second display panel overlaps the transparent region of the non-display region of the first display panel, so that an image of the display region of the second display panel is displayed through the transparent region of the non-display region of the first display panel at an overlapping portion of the first and second display panels and the transparent region of the non-display region at a central portion between the first and second display panels is not recognized, thereby displaying the image without a border line at the overlapping portion, wherein the transparent region of the non-display region of the first display panel includes a plurality of conductive lines made of a transparent material, wherein the first and second display panels include an overlapping portion where the first display panel is disposed over the second display panel to overlap the second display panel, wherein, in the overlapping portion, a distance between an end of the first display panel and a boundary of the display region of the second display panel is greater than a distance between the end of the first display panel and a boundary of the display region of the first display panel, wherein a width of the non-display region along the second side of the first display panel is different from a width of the transparent region of the non-display region along the first side of the first display panel, wherein a gate link line connected to a gate driver for transmitting a gate signal is disposed in the transparent region of the non-display region of the first display panel and the gate link line includes a transparent conductive material, and wherein a data link line connected to a data driver for transmitting a data signal is disposed in the transparent region of the non-display region of the first display panel and the data link line includes a transparent conductive material. ### Claim 22 (depends on 21) The multi display device of claim 21, wherein the transparent region of the non-display region of the first display panel is disposed over the display region of the second display panel so that the first display panel is closer to a user than the second display panel. ### Claim 23 (depends on 21) The multi display device of claim 21, further comprising a third display panel including a display region and a non-display region at a periphery of the display region, wherein the transparent region of the non-display region of the second display panel overlaps a portion of the display region of the third display panel. ### Claim 24 (depends on 23) The multi display device of claim 23, wherein a portion of the non-display region of the third display panel includes a transparent region. ### Claim 25 (depends on 21) The multi display device of claim 21, wherein the first display panel is an OLED display panel and the second display panel is a liquid crystal display (LCD) panel. ### Claim 26 (depends on 21) The multi display device of claim 21, wherein a first distance between a first end of the transparent region of the non-display region of the first display panel and a first boundary of the display region of the first display panel is equal to or smaller than a distance between a second boundary of the display region of the second display panel and the first end of the transparent region of the non-display region of the first display panel. ### Claim 27 A display device comprising: a first display panel and a second display panel, each of the first and second display panels including a display region having pixels used for displaying images, and further including at least one non-display region adjacent to and extending along a periphery of the display region, wherein the non-display region of the first display panel has an edge with transparent characteristics and dimensions including a width and a thickness that provide an overlapping attachment with a counterpart second display panel such that the display region of the first display panel and a display region of the second display panel have a visually indistinguishable boundary, wherein a transparent region of the non-display region of the first display panel includes a plurality of conductive lines made of a transparent material, wherein the first and second display panels include an overlapping portion where a first side of the first display panel is disposed over a second side of the second display panel to overlap the second display panel, wherein, in the overlapping portion, a distance between an end of the first display panel and a boundary of the display region of the second display panel is greater than a distance between the end of the first display panel and a boundary of the display region of the first display panel, wherein an image displayed by the display region of the second display panel is displayed through the transparent region of the non-display region of the first display panel, wherein a width of the non-display region along a second side of the first display panel is different from a width of the transparent region of the non-display region along the first side of the first display panel, wherein a gate link line connected to a gate driver for transmitting a gate signal is disposed in the transparent region of the non-display region of the first display panel and the gate link line includes a transparent conductive material, and wherein a data link line connected to a data driver for transmitting a data signal is disposed in the transparent region of the non-display region of the first display panel and the data link line includes a transparent conductive material. ### Claim 28 (depends on 27) The display device of claim 27, wherein the transparent characteristics and the dimensions of the edge of the first display panel allow a portion of the display region of the second display panel, which is attached to the first display panel in an edge overlapping manner that results in the overlapping attachment, to be visible through the non-display region at the edge of the first display panel. ### Claim 29 (depends on 28) The display device of claim 28, wherein the first display panel includes two non-display regions along two edges thereof. ### Claim 30 (depends on 29) The display device of claim 29, wherein the first display panel is attached with a plurality of counterpart display panels according to the overlapping attachment for achieving a tiled display screen having an overall size that is determined by a total number of display panels being attached together.