# US 2019/0172386 A1 · Operating module for display and operating method, and electronic device supporting the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0172386 A1 - Document ID: US20190172386A1 - Status: Published application - Kind: A1 - Application number: 16/258,757 - Filed: 2019-01-28 - Published: 2019-06-06 - Earliest claimed: 2015-08-26 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Jong Kon BAE; Dong Hui KIM; Dong Kyoon HAN; Tae Sung KIM - Web page: https://patentgrep.com/patent/US20190172386A1 ## CPC - G09G 3/2096: {Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167)} - G09G 3/3275: Details of drivers for data electrodes - G09G 3/3666: {with the matrix divided into sections} - G09G 3/3688: {suitable for active matrices only} - G09G 2310/0286: Details of a shift registers arranged for use in a driving circuit - G09G 2310/0291: Details of output amplifiers or buffers arranged for use in a driving circuit - G09G 2320/103: Detection of image changes, e.g. determination of an index representative of the image change - G09G 2330/021: Power management, e.g. power saving - 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 An electronic device is provided. The electronic device may include a display driver module configured to, in response to receiving display data, divide the display data into a plurality of segments corresponding to a plurality of display regions, compare the display data in the plurality of segments to determine whether the display data in at least one segment is substantially same as the display data in another segment, and based on the comparison outcome, selectively amplify a first display signal generated from the display data in the at least one segment or a second display signal generated from the display data in the another segment. ## Claims ### Claim 1 An electronic device comprising a display driver configured to: in response to receiving display data, divide the display data into a plurality of segments corresponding to a plurality of display regions; compare the display data in the plurality of segments to determine whether the display data in at least one segment is substantially same as the display data in another segment; and based on the comparison outcome, selectively amplify a first display signal generated from the display data in the at least one segment or a second display signal generated from the display data in the another segment. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the display driver is further configured to display the amplified first display signal in a first display region corresponding to the at least one segment when the display data in the at least one segment is not substantially same as the display data in another segment. ### Claim 3 (depends on 2) The electronic device of claim 2, wherein the display driver is further configured to display the amplified second display signal in the first display region and a second display region corresponding to the another segment when the display data in the at least one segment is substantially same as the display data in another segment. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the display driver is further configured to, when the display data in the at least one segment is substantially same as the display data in another segment, disable a first amplifier associated with the at least one segment. ### Claim 5 (depends on 4) The electronic device of claim 4, wherein the display driver is further configured to, when the display data in the at least one segment is substantially same as the display data in another segment, enable a second amplifier associated with the another segment while the first amplifier is disabled. ### Claim 6 (depends on 5) The electronic device of claim 5, wherein the display driver is further configured to supply an output from the second amplifier to an output stage of the first amplifier. ### Claim 7 (depends on 1) The electronic device of claim 1, further comprising a data shift register or a memory for each segment of display data. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein the display driver is further configured to output comparison value information associated with the at least one segment, the comparison value information representing the comparison outcome. ### Claim 9 (depends on 1) The electronic device of claim 1, wherein each segment corresponds to a pixel or sub-pixel of a display of the electronic device. ### Claim 10 (depends on 1) The electronic device of claim 1, further comprising: source pads connected to output stages of amplifiers associated with each segment; a switch disposed between each output stage and each source pad; and a channel selection switch disposed between the output stage of the amplifier associated with the at least one segment and the source pad associated with the another segment. ### Claim 11 (depends on 10) The electronic device of claim 10, wherein the display driver is further configured to display the amplified second display signal in a first display region and a second display region by turning on the channel selection switch. ### Claim 12 A method for operating an electronic device, the method comprising: in response to receiving display data, dividing the display data into a plurality of segments corresponding to a plurality of display regions; comparing the display data in the plurality of segments to determine whether the display data in at least one segment is substantially same as the display data in another segment; and based on the comparison outcome, selectively amplifying a first display signal generated from the display data in the at least one segment or a second display signal generated from the display data in the another segment ### Claim 13 (depends on 12) The method of claim 12, further comprising displaying the amplified first display signal in a first display region corresponding to the at least one segment when the display data in the at least one segment is not substantially same as the display data in another segment. ### Claim 14 (depends on 13) The method of claim 13, further comprising displaying the amplified second display signal in the first display region and a second display region corresponding to the another segment when the display data in the at least one segment is substantially same as the display data in another segment. ### Claim 15 (depends on 12) The method of claim 12, further comprising, when the display data in the at least one segment is substantially same as the display data in another segment, disabling a first amplifier associated with the at least one segment. ### Claim 16 (depends on 15) The method of claim 15, further comprising, when the display data in the at least one segment is substantially same as the display data in another segment, enabling a second amplifier associated with the another segment while the first amplifier is disabled. ### Claim 17 (depends on 16) The method of claim 16, further comprising supplying an output from the second amplifier to an output stage of the first amplifier. ### Claim 18 (depends on 12) The method of claim 12, further comprising outputting comparison value information associated with the at least one segment, the comparison value information representing the comparison outcome. ### Claim 19 A display driver comprising: a plurality of amplifiers configured to amplify a display signal generated from display data divided into a plurality of segments to be supplied to each signal line of a display panel; and a logic circuit configured to compare the display data in the plurality of segments to determine whether the display data in at least one segment is substantially same as the display data in another segment; wherein when the display data in the at least one segment is not substantially same as the display data in another segment, the logic circuit is further configured to amplify the display signals generated from the display data from the at least one segment and the another segment using the plurality of amplifier, and when the display data in the at least one segment is substantially same as the display data in another segment, the logic circuit is further configured to enable a first amplifier associated with the another segment and disable a second amplifier associated with the at least one segment. ### Claim 20 (depends on 19) The display driver of claim 19, further comprising: a data shift register or a memory for each segment of display data, wherein the logic circuit is configured to output comparison value information associated with the at least one segment, the comparison value information representing a result of the comparison. wherein each segment corresponds to a pixel or sub-pixel of a display of an electronic device.