# US 10,504,416 B2 · Gate driver and display device including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,504,416 B2 - Document ID: US10504416B2 - Status: Granted - Kind: B2 - Application number: 16/354,398 - Filed: 2019-03-15 - Published: 2019-07-11 - Granted: 2019-12-10 - Earliest claimed: 2016-03-15 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Seung-Jae Lee; Tae-Jin Kim; Sung-Yeon Cho; Myung-Ho Lee - Web page: https://patentgrep.com/patent/US10504416B2 ## CPC - 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)} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G09G 3/035: {for flexible display surfaces} - G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} - G09G 3/3266: Details of drivers for scan electrodes - G09G 3/3611: {Control of matrices with row and column drivers} - G09G 2310/0267: Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays - G09G 2310/0286: Details of a shift registers arranged for use in a driving circuit - G09G 2340/0407: Resolution change, inclusive of the use of different resolutions for different screen areas - 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) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A gate driver includes a plurality of shift registers and a plurality of connection controllers. The shift registers are connected to a plurality of gate lines of a stretchable display panel, respectively. The shift registers are grouped into a plurality of shift register groups. N adjacent shift registers constitute each of the shift register groups, where N is an integer greater than or equal to 2. The connection controllers change a connection structure of the N adjacent shift registers included in the each of the shift register groups according to whether the stretchable display panel is stretched. ## Claims ### Claim 1 A gate driver, comprising: a plurality of shift registers including input terminals and output terminals, the output terminals of the plurality of shift registers connected to a plurality of gate lines of a stretchable display panel, respectively, the shift registers being grouped into a plurality of shift register groups, each of the shifting register groups including two adjacent shift registers; and a plurality of connection controllers to change a connection structure of the input terminals and the output terminals of the two adjacent shift registers included in the each of the shift register groups according to a distance between two adjacent gate lines of the stretchable display panel connected to the two adjacent shift registers as a physical dimension of the stretchable display panel is changed by stretching of the stretchable display panel, wherein the two adjacent shift registers output gate signals regardless of whether the input terminals of the two adjacent shift registers are connected to each other or separated from each other, and wherein the input terminals of the two adjacent shift registers are connected to each other when the distance between the two adjacent gate lines connected to the two adjacent shift registers is shorter than or equal to a reference distance. ### Claim 2 (depends on 1) The gate driver as claimed in claim 1, wherein the shift register groups are connected in a cascade form to sequentially operate. ### Claim 3 (depends on 1) The gate driver as claimed in claim 1, wherein the two adjacent shift registers include an upper adjacent shift register and a lower adjacent shift register, and wherein the upper adjacent shift register and the lower adjacent shift register are connected in a parallel form when the distance between the two adjacent gate lines connected to the two adjacent shift registers is shorter than or equal to the reference distance. ### Claim 4 (depends on 3) The gate driver as claimed in claim 3, wherein the input terminal of the upper adjacent shift register is connected to the input terminal of the lower adjacent shift register and the output terminal of the upper adjacent shift register is separated from the input terminal of the lower adjacent shift register when the distance between the two adjacent gate lines connected to the two adjacent shift registers is shorter than or equal to the reference distance. ### Claim 5 (depends on 4) The gate driver as claimed in claim 4, wherein the upper adjacent shift register and the lower adjacent shift register simultaneously output the gate signals when the distance between the two adjacent gate lines connected to the two adjacent shift registers is shorter than or equal to the reference distance. ### Claim 6 (depends on 1) The gate driver as claimed in claim 1, wherein the input terminals of the two adjacent shift registers are separated from each other when the distance between the two adjacent gate lines connected to the two adjacent shift registers is longer than the reference distance. ### Claim 7 (depends on 6) The gate driver as claimed in claim 6, wherein the two adjacent shift registers include an upper adjacent shift register and a lower adjacent shift register, and wherein the upper adjacent shift register and the lower adjacent shift register are connected in a cascade form when the distance between the two adjacent gate lines connected to the two adjacent shift registers is longer than the reference distance. ### Claim 8 (depends on 7) The gate driver as claimed in claim 7, wherein the input terminal of the upper adjacent shift register is separated from the input terminal of the lower adjacent shift register and the output terminal of the upper adjacent shift register is connected to the input terminal of the lower adjacent shift register when the distance between the two adjacent gate lines connected to the two adjacent shift registers is longer than the reference distance. ### Claim 9 (depends on 8) The gate driver as claimed in claim 8, wherein the upper adjacent shift register and the lower adjacent shift register sequentially output the gate signals when the distance between the two adjacent gate lines connected to the two adjacent shift registers is longer than the reference distance. ### Claim 10 (depends on 1) The gate driver as claimed in claim 1, wherein the gate driver is stretched as the stretchable display panel is stretched. ### Claim 11 (depends on 1) The gate driver as claimed in claim 1, wherein each of the connection controllers includes a plurality of switches that are turned on or off based on a stretch detection signal indicating whether the stretchable display panel is stretched. ### Claim 12 (depends on 1) The gate driver as claimed in claim 1, wherein each of the connection controllers includes a plurality of conductive connecting lines that are physically connected or separated according to whether the stretchable display panel is stretched. ### Claim 13 A display device, comprising: a stretchable display panel including a plurality of pixels; a gate driver to provide a gate signal to the stretchable display panel via a plurality of gate lines; a data driver to provide a data signal corresponding to image data to the stretchable display panel via a plurality of data lines; and a timing controller to control the gate driver and the data driver, wherein the gate driver includes: a plurality of shift registers including input terminals and output terminals, the output terminals of the plurality of shift registers connected to the plurality of gate lines of the stretchable display panel, respectively, the shift registers being grouped into a plurality of shift register groups, each of the shifting register groups including two adjacent shift registers; and a plurality of connection controllers to change a connection structure of the input terminals and the output terminals of the two adjacent shift registers included in the each of the shift register groups according to a distance between two adjacent gate lines of the stretchable display panel connected to the two adjacent shift registers as a physical dimension of the stretchable display panel is changed by stretching of the stretchable display panel, wherein the two adjacent shift registers output gate signals regardless of whether the input terminals of the two adjacent shift registers are connected to each other or separated from each other, and wherein the input terminals of the two adjacent shift registers are connected to each other when the distance between the two adjacent gate lines connected to the two adjacent shift registers is shorter than or equal to a reference distance. ### Claim 14 (depends on 13) The display device as claimed in claim 13, further comprising: a data compensator to compensate for the image data according to whether the stretchable display panel is stretched. ### Claim 15 (depends on 13) The display device as claimed in claim 13, wherein the shift register groups are connected in a cascade form to sequentially operate. ### Claim 16 (depends on 13) The display device as claimed in claim 13, wherein the two adjacent shift registers include an upper adjacent shift register and a lower adjacent shift register, and wherein the input terminal of the upper adjacent shift register is connected to the input terminal of the lower adjacent shift register and the output terminal of the upper adjacent shift register is separated from the input terminal of the lower adjacent shift register when the distance between the two adjacent gate lines connected to the two adjacent shift registers is shorter than or equal to the reference distance. ### Claim 17 (depends on 13) The display device as claimed in claim 13, wherein the input terminals of the two adjacent shift registers are separated from each other when the distance between the two adjacent gate lines connected to the two adjacent shift registers is longer than the reference distance. ### Claim 18 (depends on 17) The display device as claimed in claim 17, wherein the two adjacent shift registers include an upper adjacent shift register and a lower adjacent shift register, and wherein the input terminal of the upper adjacent shift register is separated from the input terminal of the lower adjacent shift register and the output terminal of the upper adjacent shift register is connected to the input terminal of the lower adjacent shift register when the distance between the two adjacent gate lines connected to the two adjacent shift registers is longer than the reference distance.