# US 12,183,229 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 12,183,229 B2 - Document ID: US12183229B2 - Status: Granted - Kind: B2 - Application number: 18/239,919 - Filed: 2023-08-30 - Published: 2024-05-23 - Granted: 2024-12-31 - Earliest claimed: 2022-11-22 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Jaewoo Lee; Tae-Ho Kim; Seung-Jun Lee; Yongsu Lee; Seung-Hwan Cho - Web page: https://patentgrep.com/patent/US12183229B2 ## CPC - G09G 3/006: {Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309)} - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 3/035: {for flexible display surfaces} - G09G 3/2092: {Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165)} - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - G09G 3/3275: Details of drivers for data electrodes - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0814: used for selection purposes, e.g. logical AND for partial update - G09G 2300/0819: used for counteracting undesired variations, e.g. feedback or autozeroing - G09G 2300/0861: with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes - G09G 2300/0866: by means of changes in the pixel supply voltage - G09G 2310/0297: Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns - G09G 2320/045: Compensation of drifts in the characteristics of light emitting or modulating elements - 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 device according to the invention includes: a display panel and a driving chip mounted on the display panel. The display panel includes: a base layer, pixels, signal lines, fan-out lines, and a selection circuit. The base layer includes a first region, a second region bent with respect to a bending axis, and a third region adjacent to the second region. The pixels are arranged in the first region, and the signal lines are arranged in the first region and connected to the pixels. The fan-out lines are arranged in the second region and connected to the signal lines. The selection circuit is arranged between the fan-out lines and the driving chip in the third region and connected to the fan-out lines and the driving chip. ## Claims ### Claim 1 A display device comprising a display panel and a driving chip mounted on the display panel, wherein the display panel comprises: a base layer including a first region, a second region adjacent to the first region and bent with respect to a bending axis, and a third region adjacent to the second region; a plurality of pixels arranged in the first region; a plurality of signal lines arranged in the first region and connected to the plurality of pixels; a plurality of fan-out lines arranged in the second region and connected to the plurality of signal lines; and a selection circuit arranged between the plurality of fan-out lines and the driving chip in the third region and connected to the plurality of fan-out lines and the driving chip, wherein the selection circuit is electrically connected to first fan-out lines among the plurality of fan-out lines during a first period and electrically connected to second fan-out lines among the plurality of fan-out lines during a second period, two adjacent first fan-out lines are spaced apart by a first distance in a direction of the bending axis in the second region, and two adjacent second fan-out lines are spaced apart by a second distance in the direction of the bending axis in the second region, and a third distance between a first fan-out line of the first fan-out lines and a second fan-out line of the second fan-out line, which are adjacent to each other in the direction of the bending axis in the second region, is larger than each of the first and second distances. ### Claim 2 (depends on 1) The display device of claim 1, wherein the selection circuit includes a plurality of demux units, wherein one of the first fan-out lines and one of the second fan-out lines are connected to each of the plurality of demux units. ### Claim 3 (depends on 2) The display device of claim 2, wherein the plurality of demux units include: a first demux unit connected to a 1-1st fan-out line among the first fan-out lines and a 2-1st fan-out line among the second fan-out lines; and a second demux unit connected to a 1-2nd fan-out line among the first fan-out lines and a 2-2nd fan-out line among the second fan-out lines, wherein the 1-1st fan-out line and the 1-2nd fan-out line are spaced apart by the first distance in the direction of the bending axis in the second region, and the 2-1st fan-out line and the 2-2nd fan-out line are spaced apart by the second distance in the direction of the bending axis in the second region, and the 1-2nd fan-out line and the 2-1st fan-out line are spaced apart by the third distance in the direction of the bending axis in the second region. ### Claim 4 (depends on 3) The display device of claim 3, wherein the 1-1st fan-out line, the 1-2nd fan-out line, the 2-1st fan-out line, and the 2-2nd fan-out line are arranged in this order. ### Claim 5 (depends on 3) The display device of claim 3, wherein the 1-2nd fan-out line and the 2-1st fan-out line are arranged on different layers from each other. ### Claim 6 (depends on 5) The display device of claim 5, wherein the 1-1st fan-out line and the 1-2nd fan-out line are arranged on different layers from each other, and wherein the 2-1st fan-out line and the 2-2nd fan-out line are arranged on different layers from each other. ### Claim 7 (depends on 3) The display device of claim 3, wherein the display panel further comprises a coupling blocking line, which is arranged between the 1-2nd fan-out line and the 2-1st fan-out line and to which a DC voltage is applied. ### Claim 8 (depends on 7) The display device of claim 7, wherein the coupling blocking line is arranged on a layer different from a layer on which at least one of the 1-1st fan-out line, the 1-2nd fan-out line, the 2-1st fan-out line, and the 2-2nd fan-out line is disposed. ### Claim 9 (depends on 2) The display device of claim 2, wherein the plurality of demux units include: a first demux unit connected to a 1-1st fan-out line among the first fan-out lines and a 2-1st fan-out line among the second fan-out lines; a second demux unit connected to a 1-2nd fan-out line among the first fan-out lines and a 2-2nd fan-out line among the second fan-out lines; a third demux unit connected to a 1-3rd fan-out line among the first fan-out lines and a 2-3rd fan-out line among the second fan-out lines; and a fourth demux unit connected to a 1-4th fan-out line among the first fan-out lines and a 2-4th fan-out line among the second fan-out lines, wherein two adjacent fan-out lines among the 1-1st fan-out line, the 1-2nd fan-out line, the 1-3rd fan-out line, and the 1-4th fan-out line are spaced apart from each other by the first distance in the direction of the bending axis in the second region, and two adjacent fan-out lines among the 2-1st fan-out line, the 2-2nd fan-out line, the 2-3rd fan-out line, and the 2-4th fan-out line are spaced apart from each other by the second distance in the direction of the bending axis in the second region, and the 1-4th fan-out line and the 2-1st fan-out line are spaced apart by the third distance in the direction of the bending axis in the second region. ### Claim 10 (depends on 9) The display device of claim 9, wherein the 1-1st fan-out line, the 1-2nd fan-out line, the 1-3rd fan-out line, the 1-4th fan-out line, the 2-1st fan-out line, the 2-2nd fan-out line, the 2-3rd fan-out line, and the 2-4th fan-out line are arranged in this order. ### Claim 11 (depends on 10) The display device of claim 10, wherein each of the 1-2nd fan-out line, the 1-3rd fan-out line, and the 1-4th fan-out line is arranged on a layer different from a layer on which a line intersecting therewith among the 2-1st fan-out line, the 2-2nd fan-out line, and the 2-3rd fan-out line is disposed. ### Claim 12 (depends on 10) The display device of claim 10, wherein the display panel further comprises a coupling blocking line, which is arranged between the 1-4th fan-out line and the 2-1st fan-out line and to which a DC voltage is applied. ### Claim 13 (depends on 12) The display device of claim 12, wherein the coupling blocking line is arranged on a layer different from a layer on which at least one of the 1-1st fan-out line, the 1-2nd fan-out line, the 1-3rd fan-out line, the 1-4th fan-out line, the 2-1st fan-out line, the 2-2nd fan-out line, the 2-3rd fan-out line, and the 2-4th fan-out line is disposed. ### Claim 14 (depends on 9) The display device of claim 9, wherein at least two of the 1-1st fan-out line, the 1-2nd fan-out line, the 1-3rd fan-out line, and the 1-4th fan-out line are arranged on different layers and overlap each other in a plan view when the second region is not bent, and wherein at least two of the 2-1st fan-out line, the 2-2nd fan-out line, the 2-3rd fan-out line, and the 2-4th fan-out line are arranged on different layers and overlap each other in the plan view when the second region is not bent. ### Claim 15 (depends on 2) The display device of claim 2, wherein the plurality of demux units include: a dummy demux unit connected to a 1-1st fan-out line among the first fan-out lines; a first demux unit connected to a 1-2nd fan-out line among the first fan-out lines and a 2-1st fan-out line among the second fan-out lines; and a second demux unit connected to a 1-3rd fan-out line among the first fan-out lines and a 2-2nd fan-out line among the second fan-out lines, wherein the 1-1st fan-out line and the 1-2nd fan-out line are spaced apart by the first distance in the direction of the bending axis in the second region, and the 2-1st fan-out line and the 2-2nd fan-out line are spaced apart by the second distance in the direction of the bending axis in the second region, and the 1-2nd fan-out line and the 2-1st fan-out line are spaced apart by the third distance in the direction of the bending axis in the second region. ### Claim 16 (depends on 15) The display device of claim 15, wherein the 1-1st fan-out line, the 1-2nd fan-out line, the 2-1st fan-out line, the 2-2nd fan-out line, and the 1-3rd fan-out line are arranged in this order. ### Claim 17 (depends on 16) The display device of claim 16, wherein the 1-1st fan-out line, the 1-2nd fan-out line, the 2-1st fan-out line, the 2-2nd fan-out line, and the 1-3rd fan-out line are arranged on a same layer. ### Claim 18 (depends on 16) The display device of claim 16, wherein the display panel further comprises a coupling blocking line, which is arranged between the 1-2nd fan-out line and the 2-1st fan-out line and between the 2-2nd fan-out line and the 1-3rd fan-out line and to which a DC voltage is applied. ### Claim 19 (depends on 1) The display device of claim 1, wherein the plurality of signal lines include: data lines of a first group connected to the plurality of first fan-out lines, respectively; and data lines of a second group connected to the plurality of second fan-out lines, respectively, wherein the data lines of the first group and the data lines of the second group are spaced apart at regular intervals and arranged alternately. ### Claim 20 A display device comprising a display panel and a driving chip mounted on the display panel, wherein the display panel comprises: a base layer including a first region, a second region adjacent to the first region and bent with respect to a bending axis, and a third region adjacent to the second region; a plurality of pixels arranged in the first region; a plurality of signal lines arranged in the first region and connected to the plurality of pixels; a plurality of fan-out lines arranged in the second region and connected to the plurality of signal lines; and a selection circuit arranged between the plurality of fan-out lines and the driving chip in the third region and connected to the plurality of fan-out lines and the driving chip, wherein the selection circuit includes a first demux unit connected to a 1-1st fan-out line and 2-1st fan-out line among the plurality of fan-out lines and a second demux unit connected to a 1-2nd fan-out line and 2-2nd fan-out line among the plurality of fan-out lines, wherein the 2-1st fan-out line and the 1-2nd fan-out line intersect each other in the third region in a plan view, wherein the 1-1st fan-out line and the 1-2nd fan-out line are spaced apart by a first distance in the direction of the bending axis in the second region, and the 2-1st fan-out line and the 2-2nd fan-out line are spaced apart by a second distance in the direction of the bending axis in the second region, and wherein the 1-2nd fan-out line and the 2-1st fan-out line are spaced apart by a third distance larger than each of the first and second distances in the direction of the bending axis in the second region. ### Claim 21 (depends on 20) The display device of claim 20, wherein the first demux unit is electrically connected to the 1-1st fan-out line and the second demux unit is electrically connected to the 1-2nd fan-out line during a first period, and wherein the first demux unit is electrically connected to the 2-1st fan-out line and the second demux unit is electrically connected to the 2-2nd fan-out line during a second period, wherein the first and second periods are alternately occurred. ### Claim 22 (depends on 20) The display device of claim 20, wherein the display panel further comprises a coupling blocking line, which is arranged between the 1-2nd fan-out line and the 2-1st fan-out line and to which a DC voltage is applied. ### Claim 23 (depends on 22) The display device of claim 22, wherein the coupling blocking line is arranged on a layer different from a layer on which at least one of the 1-1st fan-out line, the 1-2nd fan-out line, the 2-1st fan-out line, and the 2-2nd fan-out line is arranged. ### Claim 24 (depends on 22) The display device of claim 22, wherein the display panel further comprises: a first power line configured to supply a first driving voltage to the pixels; and a second power line configured to supply a second driving voltage to the pixels, wherein the coupling blocking line is electrically connected to one of the first and second power lines and receives one of the first and second driving voltages as the DC voltage.