# US 2014/0198023 A1 · Gate driver on array and method for driving gate lines of display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0198023 A1 - Document ID: US20140198023A1 - Status: Published application - Kind: A1 - Application number: 13/929,806 - Filed: 2013-06-28 - Published: 2014-07-17 - Earliest claimed: 2013-01-14 - Assignees: Novatek Microelectronics Corp. - Applicants: Novatek Microelectronics Corp. - Inventors: Kuo-Hua Hsu - Web page: https://patentgrep.com/patent/US20140198023A1 ## CPC - G09G 3/3674: {Details of drivers for scan electrodes} - G09G 2310/0286: Details of a shift registers arranged for use in a driving circuit - 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 gate driver circuit including a plurality of gate driver stages is provided. The gate driver stages are combined on the display panel and configured to receive a plurality of clock signals and a start pulse. After being started by the start pulse, the gate driver stages generate a plurality of scan signals based on the clock signals. The scan signals respectively drive a plurality of gate lines of the display panel in a plurality of scan sequences during different frame periods based on the clock signals, wherein at least two scan sequences of the scan sequences are different. Furthermore, a method for driving gate lines of the display panel including the foregoing gate driver circuit is also provided. ## Claims ### Claim 1 A gate driver circuit, comprising: a plurality of gate driver stages, combined on a display panel for receiving a plurality of clock signals and a start pulse, and after being started by the start pulse, the gate driver stages generating a plurality of scan signals based on the clock signals, wherein the scan signals drive a plurality of gate lines of the display panel in a plurality of scan sequences during different frame periods based on the clock signals, wherein at least two scan sequences among the scan sequences are different. ### Claim 2 (depends on 1) The gate driver circuit according to claim 1, wherein the scan signals drive the gate lines of the display panel in at least a first scan sequence and a second scan sequence during the different frame periods, wherein the first scan sequence and the second scan sequence are different. ### Claim 3 (depends on 2) The gate driver circuit according to claim 2, wherein based on the first scan sequence, a driving mode of the scan signals is one selected from a Z driving mode, an invert-Z driving mode, a first C/invert-C mixed driving mode, and a second C/invert-C mixed driving mode. ### Claim 4 (depends on 3) The gate driver circuit according to claim 3, wherein based on the second scan sequence, a driving mode of the scan signals is one selected from the Z driving mode, the invert-Z driving mode, the first C/invert-C mixed driving mode, and the second C/invert-C mixed driving mode and is different from the driving mode to which the first scan sequence corresponds. ### Claim 5 (depends on 1) The gate driver circuit according to claim 1, wherein the scan signals drive the gate lines of the display panel in at least a first scan sequence, a second scan sequence, and a third scan sequence during the different frame periods, wherein at least two scan sequences among the first scan sequence, the second scan sequence, and the third scan sequence are different. ### Claim 6 (depends on 5) The gate driver circuit according to claim 5, wherein based on the first scan sequence, a driving mode of the scan signals is one selected from a Z driving mode, a y driving mode, and an invert-y driving mode. ### Claim 7 (depends on 6) The gate driver circuit according to claim 6, wherein based on the second scan sequence, a driving mode of the scan signals is one selected from the Z driving mode, the y driving mode, and the invert-y driving mode and is different from the driving mode to which the first scan sequence corresponds. ### Claim 8 (depends on 7) The gate driver circuit according to claim 7, wherein based on the third scan sequence, a driving mode of the scan signals is one selected from the Z driving mode, the y driving mode, and the invert-y driving mode and is different from the driving modes to which the first scan sequence and the second scan sequence correspond. ### Claim 9 (depends on 1) The gate driver circuit according to claim 1, wherein the gate driver stages are categorized into a plurality of gate driver groups, and each of the gate driver groups comprises a first gate driver stage and a plurality of second gate driver stages, and after being started by the start pulse, the first gate driver stage generates a corresponding scan signal of the scan signals based on one of the clock signals, and each of the second gate driver stages generates a corresponding scan signal of the scan signals based on the clock signals and an output of a gate driver stage prior to the each of the second gate driver stages. ### Claim 10 (depends on 9) The gate driver circuit according to claim 9, wherein the gate driver stages are categorized into X of gate driver groups, the clock signals comprise Y of clock signals, wherein Y=2X, X≧2, and X, Y are natural numbers. ### Claim 11 A method for driving gate lines of a display panel, comprising: receiving a plurality of clock signals and a start pulse by a plurality of gate driver stages, wherein the gate driver stages are combined on the display panel; generating a plurality of scan signals based on the clock signals and the start pulse the gate driver stages, wherein the scan signals have a plurality of scan sequences during different frame periods; and respectively driving a plurality of gate lines of the display panel by the scan signals during the different frame periods by the gate driver stages, wherein at least two scan sequences of the scan sequences are different. ### Claim 12 (depends on 11) The method for driving the gate lines according to claim 11, wherein in the step of respectively driving the gate lines of the display panel during the different frame periods by the scan signals, the gate lines are driven in at least a first scan sequence and a second scan sequence, wherein the first scan sequence and the second scan sequence are different. ### Claim 13 (depends on 12) The method for driving the gate lines according to claim 12, wherein based on the first scan sequence, a driving mode of the scan signals is one selected from a Z driving mode, an invert-Z driving mode, a first C/invert-C mixed driving mode, and a second C/invert-C mixed driving mode. ### Claim 14 (depends on 13) The method for driving the gate lines according to claim 13, wherein based on the second scan sequence, a driving mode of the scan signals is one selected from the Z driving mode, the invert-Z driving mode, the first C/invert-C mixed driving mode, and the second C/invert-C mixed driving mode and is different from the driving mode to which the first scan sequence corresponds. ### Claim 15 (depends on 11) The method for driving the gate lines according to claim 11, wherein in the step of driving the gate lines of the display panel during the different frame periods by the scan signals to, the gate lines of the display panel are driven in at least a first scan sequence, a second scan sequence, and a third scan sequence, wherein at least two scan sequences of the first scan sequence, the second scan sequence, and the third scan sequence are different. ### Claim 16 (depends on 15) The method for driving the gate lines according to claim 15, wherein based on the first scan sequence, a driving mode of the scan signals is one selected from a Z driving mode, a y driving mode, and an invert-y driving mode. ### Claim 17 (depends on 16) The method for driving the gate lines according to claim 16, wherein based on the second scan sequence, a driving mode of the scan signals is one selected from the Z driving mode, the y driving mode, and the invert-y driving mode and is different from the driving mode to which the first scan sequence corresponds. ### Claim 18 (depends on 17) The method for driving the gate lines according to claim 17, wherein based on the third scan sequence, a driving mode of the scan signals is one selected from the Z driving mode, the y driving mode, and the invert-y driving mode and is different from the driving modes to which the first scan sequence and the second scan sequence correspond.