# US 10,770,017 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 10,770,017 B2 - Document ID: US10770017B2 - Status: Granted - Kind: B2 - Application number: 16/250,045 - Filed: 2019-01-17 - Published: 2019-08-08 - Granted: 2020-09-08 - Earliest claimed: 2018-02-05 - Assignees: Innolux Corporation - Applicants: Innolux Corporation - Inventors: Chun-Fu Wu; Wen-Tsai Hsu; Sheng-Feng Huang - Web page: https://patentgrep.com/patent/US10770017B2 ## CPC - G09G 3/3677: {suitable for active matrices only} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 3/04184: {Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally} - G09G 3/3266: Details of drivers for scan electrodes - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - G09G 2310/0286: Details of a shift registers arranged for use in a driving circuit - G09G 2310/08: Details of timing specific for flat panels, other than clock recovery - 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 display device including a panel having a gate driver is provided. The gate driver includes a multi-stage shift register. The N-th stage shift register includes a control module, a leakage compensation module, and an output module. The control module has a first terminal for receiving a first signal from the (N−M)-th stage shift register and a second terminal electrically connected to a node for transmitting a first signal to the node. The leakage compensation module has a third terminal electrically connected to the compensation voltage and a fourth terminal electrically connected to the node. The output module has a fifth terminal electrically connected to the node for receiving the first signal, and a sixth terminal for outputting a second signal of the N-th stage shift register for driving at least some parts of the pixel array. The compensation voltage charges the node during a touch sensing period. ## Claims ### Claim 1 A display device, comprising: a panel, comprising: a gate driver for driving a pixel array, wherein the gate driver comprises a multi-stage shift register; an N-th stage shift register of the multi-stage shift register comprises: a control module having a first terminal and a second terminal, wherein the first terminal is for receiving a first signal from an (N−M)-th stage shift register; the second terminal is electrically connected to a node; the control module transmits the first signal to the node; a value of (N−M) is larger than or equivalent to 1; both N and M are positive integers; a leakage compensation module having a third terminal and a fourth terminal, wherein the third terminal is electrically connected to a compensation voltage; the fourth terminal is electrically connected to the node; and an output module having a fifth terminal and a sixth terminal, wherein the fifth terminal is electrically connected to the node for receiving the first signal; the sixth terminal outputs a second signal of the N-th stage shift register for driving at least some parts of the pixel array; wherein the compensation voltage charges the node during a touch sensing period between an enable period of the first signal and an enable period of the second signal. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the leakage compensation module comprises: a first transistor having a control end, a first end, and a second end; a second transistor having a control end, a first end, and a second end; and a capacitor having a first end and a second end; wherein the node is electrically connected to the first end of the first transistor, the first end of the capacitor and the control end of the second transistor, and the node is electrically connected to the second end of the capacitor and the second end of the second transistor. ### Claim 3 (depends on 2) The display device according to claim 2, wherein the leakage compensation module further comprises: a third transistor having a control end, a first end, and a second end; wherein the node is electrically connected to the control end and the second end of the third transistor; the first end of the third transistor is electrically connected to the first end of the first transistor. ### Claim 4 (depends on 2) The display device according to claim 2, wherein the leakage compensation module further comprises: a fourth transistor having a control end, a first end, and a second end; wherein the node is electrically connected to the second end of the fourth transistor; and wherein the control end of the fourth transistor and the first end of the fourth transistor are electrically connected to the second end of the capacitor. ### Claim 5 (depends on 2) The display device according to claim 2, wherein the first end of the second transistor is electrically connected to the compensation voltage. ### Claim 6 (depends on 5) The display device according to claim 5, wherein the control end of the first transistor is for receiving a clock signal; the second end of the first transistor is electrically connected to the compensation voltage. ### Claim 7 (depends on 5) The display device according to claim 5, wherein the control end of the first transistor is for receiving a clock signal; the second end of the first transistor is electrically connected to a reference voltage. ### Claim 8 (depends on 2) The display device according to claim 2, wherein the control module comprises a pull-down control circuit electrically connected to the node for generating a pull-down control signal according to the voltage level at the node; the control end of the first transistor is for receiving the pull-down control signal; the second end of the first transistor is electrically connected to the compensation voltage. ### Claim 9 (depends on 2) The display device according to claim 2, wherein the control module comprises a pull-down control circuit electrically connected to the node for generating a pull-down control signal according to the voltage level at the node; the control end of the first transistor is for receiving the pull-down control signal; the second end of the first transistor is electrically connected to a reference voltage. ### Claim 10 (depends on 1) The display device according to claim 1, wherein the voltage level of the compensation voltage during the enable period of the first signal or the enable period of the second signal is lower than the voltage level of the compensation voltage during the touch sensing period. ### Claim 11 (depends on 1) The display device according to claim 1, wherein the compensation voltage is pulled up to a high voltage level from an original low voltage level during the touch sensing period. ### Claim 12 A display panel, comprising: a gate driver for driving a pixel array, wherein the gate driver comprises a multi-stage shift register; an N-th stage shift register of the multi-stage shift register comprises: a control module having a first terminal and a second terminal, wherein the first terminal is for receiving a first signal from an (N−M)-th stage shift register; the second terminal is electrically connected to a node; the control module transmits the first signal to the node; a value of (N−M) is larger than or equivalent to 1; both N and M are positive integers; a leakage compensation module having a third terminal and a fourth terminal, wherein the third terminal is electrically connected to a compensation voltage, and the fourth terminal is electrically connected to the node; and an output module having a fifth terminal and a sixth terminal, wherein the fifth terminal is electrically connected to the node for receiving the first signal, and the sixth terminal outputs a second signal of the N-th stage shift register for driving at least some parts of the pixel array; wherein the compensation voltage charges the node from a low voltage level to a high voltage level during a touch sensing period. ### Claim 13 (depends on 12) The display device according to claim 12, wherein the leakage compensation module comprises: a first transistor having a control end, a first end, and a second end; a second transistor having a control end, a first end, and a second end; and a capacitor having a first end1 and a second end; wherein the node is electrically connected to the first end of the first transistor, the first end of the capacitor and the control end of the second transistor, and the node is electrically connected to the second end of the capacitor and the second end of the second transistor. ### Claim 14 (depends on 13) The display device according to claim 13, wherein the leakage compensation module further comprises: a third transistor having a control end, a first end, and a second end; wherein the node is electrically connected to the control end of the third transistor and the second end of the third transistor; the first end of the third transistor is electrically connected to the first end1 of the first transistor. ### Claim 15 (depends on 13) The display device according to claim 13, wherein the leakage compensation module further comprises: a fourth transistor having a control end, a first end, and a second end; wherein the node is electrically connected to the second end of the fourth transistor; and wherein the control end of the fourth transistor and the first end of the fourth transistor are electrically connected to the second end of the capacitor. ### Claim 16 (depends on 13) The display device according to claim 13, wherein the first end of the second transistor is electrically connected to the compensation voltage. ### Claim 17 (depends on 16) The display device according to claim 16, wherein the control end of the first transistor is for receiving a clock signal; the second end of the first transistor is electrically connected to the compensation voltage. ### Claim 18 (depends on 16) The display device according to claim 16, wherein the control end of the first transistor is for receiving a clock signal; the second end of the first transistor is electrically connected to a reference voltage. ### Claim 19 (depends on 13) The display device according to claim 13, wherein the control module comprises a pull-down control circuit electrically connected to the node for generating a pull-down control signal according to the voltage level at the node; the control end of the first transistor is for receiving the pull-down control signal; the second end of the first transistor is electrically connected to the compensation voltage. ### Claim 20 (depends on 13) The display device according to claim 13, wherein the control module comprises a pull-down control circuit electrically connected to the node for generating a pull-down control signal according to the voltage level at the node; the control end of the first transistor is for receiving the pull-down control signal; the second end of the first transistor is electrically connected to a reference voltage.