# US 10,120,467 B2 · Touch display driving method, driving module and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,120,467 B2 - Document ID: US10120467B2 - Status: Granted - Kind: B2 - Application number: 15/124,903 - Filed: 2016-01-05 - Published: 2017-06-29 - Granted: 2018-11-06 - Earliest claimed: 2015-07-17 - Assignees: Boe Technology Group Co., Ltd.; Beijing Boe Optoelectronics Technology Co., Ltd. - Applicants: Boe Technology Group Co., Ltd.; Beijing Boe Optoelectronics Technology Co., Ltd. - Inventors: Chen Meng; Xiaobo Xie; Tiankuo Shi; Hao Zhang; Lingyun Shi - Web page: https://patentgrep.com/patent/US10120467B2 ## CPC - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G06F 1/3262: {Power saving in digitizer or tablet} - G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means - G09G 5/00: Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators (image data processing or generation, in general G06T) - G09G 5/003: {Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT G09G1/165; for a flat panel G09G3/2092)} - G09G 2310/0264: Details of driving circuits - G09G 2330/021: Power management, e.g. power saving - G09G 2340/0435: Change or adaptation of the frame rate of the video stream - G09G 2354/00: Aspects of interface with display user - 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) ## Abstract The present invention discloses a touch display driving method, a driving module and a display device. The method includes: detecting whether a touch action occurs; performing display driving and touch driving in a first driving mode when no touch action is detected; performing display driving and touch driving in a second driving mode when a touch action is detected, wherein a touch driving frequency under the first driving mode is smaller than a touch driving frequency under the second driving mode. In the present invention, driving is performed in the first driving mode when no touch action is detected, and driving is performed in the second driving mode when a touch action is detected. A touch driving frequency under the first driving mode is smaller than a touch driving frequency under the second driving mode, which decreases driving frequency as a whole, thereby reducing power consumption of a driving module. ## Claims ### Claim 1 A touch display driving method, comprising: detecting whether a touch action occurs; performing display driving and touch driving in a first driving mode, when no touch action is detected; and performing display driving and touch driving in a second driving mode when a touch action is detected, wherein a first touch driving frequency under the first driving mode is smaller than a second touch driving frequency under the second driving mode, wherein performing display driving and touch driving in the first driving mode comprises: outputting display data of touch rows for display in a plurality of successive display stages, and outputting a touch driving signal for touch in one H-blank stage following the plurality of successive display stages; and performing display driving and touch driving in the second driving mode comprises: outputting display data of a touch row for display in each display stage, and outputting the touch driving signal for touch in an H-blank stage following the display stage. ### Claim 2 (depends on 1) The touch display driving method according to claim 1, wherein outputting display data of touch rows for display in a plurality of successive display stages, and outputting a touch driving signal for touch in one H-blank stage following the plurality of successive display stages comprises: outputting display data of touch rows for display in two successive display stages, and outputting the touch driving signal for touch in one H-blank stage following the two successive display stages. ### Claim 3 A touch display driving method, comprising: detecting whether a touch action occurs; performing display driving and touch driving in a first driving mode, when no touch action is detected; and performing display driving and touch driving in a second driving mode when a touch action is detected, wherein a first touch driving frequency under the first driving mode is smaller than a second touch driving frequency under the second driving mode, wherein performing display driving and touch driving in the first driving mode comprises: outputting display data of a touch row for display in a display stage and outputting a touch driving signal for touch in an H-blank stage with a first frame frequency; and performing display driving and touch driving in the second driving mode comprises: outputting display data of a touch row for display in a display stage and outputting the touch driving signal for touch in an H-blank stage with a second frame frequency; wherein the first frame frequency is smaller than the second frame frequency. ### Claim 4 (depends on 3) The touch display driving method according to claim 3, wherein the second frame frequency is twice as large as the first frame frequency. ### Claim 5 (depends on 1) A driving module, configured for performing the touch display driving method according to claim 1, the driving module comprising: a touch driving unit and a display driving unit; wherein, the touch driving unit is configured for detecting whether the touch action occurs, performing touch driving in the first driving mode when no touch action is detected, and performing touch driving in the second driving mode when a touch action is detected; and the display driving unit is configured for performing display driving in the first driving mode when the touch driving unit detects no touch action, and performing display driving in the second driving mode when the touch driving unit detects a touch action, the first touch driving frequency under the first driving mode being smaller than the second touch driving frequency under the second driving mode; wherein the display driving unit is configured for outputting display data of a touch row for display in a display stage; and when the touch driving unit detects no touch action, the touch driving unit is configured for outputting the touch driving signal for touch in one H-blank stage following a plurality of display stages; and when the touch driving unit detects a touch action, the touch driving unit is configured for outputting the touch driving signal for touch in an H-blank stage following each display stage. ### Claim 6 (depends on 5) The driving module according to claim 5, wherein the display driving unit comprises a gate driver and a source driver; the display data comprises a gate driving signal and a source driving signal; and the gate driver is configured for outputting a gate driving signal of a touch row in a display stage; a source driver is configured for outputting the source driving signal of a touch row in a display stage. ### Claim 7 (depends on 3) A driving module, configured for performing the touch display driving method according to claim 3, the driving module, comprising: a touch driving unit and a display driving unit: wherein, the touch driving unit is configured for detecting whether the touch action occurs, performing touch driving in the first driving mode when no touch action is detected, and performing touch driving in the second driving mode when a touch action is detected; and the display driving unit is configured for performing display driving in the first driving mode when the touch driving unit detects no touch action, and performing display driving in the second driving mode when the touch driving unit detects a touch action, wherein the first touch driving frequency under the first driving mode is smaller than second touch driving frequency under the second driving mode, wherein, when the touch driving unit detects no touch action, the display driving unit is configured for outputting display data of a touch row for display in a display stage with the first frame frequency; the touch driving unit is configured for outputting the touch driving signal for touch with the first frame frequency in an H-blank stage following the display stage; and when the touch driving unit detects a touch action, the display driving unit is configured for outputting display data of a touch row for display in a display stage with the second frame frequency; the touch driving unit is configured for outputting the touch driving signal for touch with the second frame frequency in an H-blank stage following the display stage, the first frame frequency being smaller than the second frame frequency. ### Claim 8 (depends on 7) The driving module according to claim 7, wherein the second frame frequency is twice as large as the first frame frequency. ### Claim 9 (depends on 7) The driving module according to claim 7, wherein the display driving unit comprises a gate driver and a source driver; the display data comprises a gate driving signal and a source driving signal; when the touch driving unit detects no touch action, the gate driver is configured for outputting the gate driving signal of a touch row in a display stage with the first frame frequency; the source driver is configured for outputting the source driving signal of a touch row in a display stage with the first frame frequency; and when the touch driving unit detects a touch action, the gate driver is configured for outputting the gate driving signal of a touch row in a display stage with the second frame frequency; the source driver is configured for outputting the source driving signal of a touch row in a display stage with the second frame frequency. ### Claim 10 (depends on 8) The driving module according to claim 8, wherein the display driving unit comprises a gate driver and a source driver; the display data comprises a gate driving signal and a source driving signal; when the touch driving unit detects no touch action, the gate driver is configured for outputting the gate driving signal of a touch row in a display stage with the first frame frequency; the source driver is configured for outputting the source driving signal of a touch row in a display stage with the first frame frequency; and when the touch driving unit detects a touch action, the gate driver is configured for outputting the gate driving signal of a touch row in a display stage with the second frame frequency; the source driver is configured for outputting the source driving signal of a touch row in a display stage with the second frame frequency. ### Claim 11 (depends on 5) A display device, comprising: a display panel and a driving module according to claim 5, the driving module comprising the touch driving unit and the display driving unit; wherein, the touch driving unit is configured for detecting whether or not the touch action occurs, performing touch driving in the first driving mode when no touch action is detected, and performing touch driving in the second driving mode when a touch action is detected; and the display driving unit is configured for performing display driving in the first driving mode when the touch driving unit detects no touch action, and performing display driving in the second driving mode when the touch driving unit detects a touch action, the first touch driving frequency under the first driving mode being smaller than the second touch driving frequency under the second driving mode; wherein the display driving unit is configured for outputting display data of a touch row for display in a display stage; and when the touch driving unit detects no touch action, the touch driving unit is configured for outputting a touch driving signal for touch in one H-blank stage following a plurality of display stages: and when the touch driving unit detects a touch action, the touch driving unit is configured for outputting the touch driving signal for touch in an H-blank stage following each display stage. ### Claim 12 (depends on 11) The display device according to claim 11, wherein the display driving unit comprises a gate driver and a source driver; the display data comprises a gate driving signal and a source driving signal; and the gate driver is configured for outputting the gate driving signal of a touch row in a display stage; the source driver is configured for outputting the source driving signal of a touch row in a display stage. ### Claim 13 (depends on 7) A display device, comprising: a display panel and the driving module according to claim 7, the driving module comprising the touch driving unit and the display driving unit; wherein the touch driving unit is configured for detecting whether or not the touch action occurs, performing touch driving in the first driving mode when no touch action is detected, and performing touch driving in the second driving mode when a touch action is detected; and the display driving unit is configured for performing display driving in the first driving mode when the touch driving unit detects no touch action, and performing display driving in the second driving mode when the touch driving unit detects a touch action, wherein the first touch driving frequency under the first driving mode is smaller than the second touch driving frequency under the second driving mode, wherein, when the touch driving unit detects no touch action, the display driving unit is configured for outputting display data of a touch row for display in a display stage with the first frame frequency; the touch driving unit is configured for outputting the touch driving signal for touch with the first frame frequency in an H-blank stage following the display stage; and when the touch driving unit detects a touch action, the display driving unit is configured for outputting display data of a touch row for display in a display stage with the second frame frequency; the touch driving unit is configured for outputting the touch driving signal for touch with the second frame frequency in an H-blank stage following the display stage, the first frame frequency being smaller than the second frame frequency. ### Claim 14 (depends on 13) The display device according to claim 13, wherein the second frame frequency is twice as large as the first frame frequency. ### Claim 15 (depends on 13) The display device according to claim 13, wherein the display driving unit comprises a gate driver and a source driver; the display data comprises a gate driving signal and a source driving signal; when the touch driving unit detects no touch action, the gate driver is configured for outputting the gate driving signal of a touch row in a display stage with the first frame frequency; the source driver is configured for outputting the source driving signal of a touch row in a display stage with the first frame frequency; and when the touch driving unit detects a touch action, the gate driver is configured for outputting the gate driving signal of a touch row in a display stage with the second frame frequency; the source driver is configured for outputting the source driving signal of a touch row in a display stage with the second frame frequency.