# US 12,008,198 B2 · Electronic device including rollable display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,008,198 B2 - Document ID: US12008198B2 - Status: Granted - Kind: B2 - Application number: 17/525,269 - Filed: 2021-11-12 - Published: 2022-05-12 - Granted: 2024-06-11 - Earliest claimed: 2020-11-12 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Minuk Kim; Sungho Ahn; Bowon Jung; Jihyung Jung; Joungmin Cho; Sungdae Choi; Kwangtai Kim; Donghyun Yeom; Changryong Heo - Web page: https://patentgrep.com/patent/US12008198B2 ## CPC - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 3/0418: {for error correction or compensation, e.g. based on parallax, calibration or alignment} - G06F 1/16: Constructional details or arrangements - G06F 1/1624: {with sliding enclosures, e.g. sliding keyboard or display} - G06F 1/1643: {the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615)} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 1/1677: {for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment} - G06F 3/038: Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry - G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) - G06F 2203/04102: Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper - G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate - G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS ## Abstract A method and an electronic device are provided for compensating for changed touch sensitivity of a touch panel of the electronic device. It is detected whether a rollable display of the electronic device is expanded. It is detected whether the touch sensitivity of the touch panel of the rollable display is changed, in case that the rollable display is expanded. A rolling direction and a length of extension of the rollable display is changed, in case that the touch sensitivity is changed. It is detected whether a resistance of an expansion area of the rollable display is changed. The touch sensitivity of the touch panel is compensated for, in case that the resistance is changed. ## Claims ### Claim 1 An electronic device comprising: a housing including a first housing and a second housing, wherein the second housing is disposed to be movable with respect to the first housing; a flexible display including a touch panel, wherein a first area of the flexible display is visually exposed outside of the housing, and wherein a second area of the flexible display is extended from the first area, is operatively connected to the second housing, and is configured to move in accordance with movement of the second housing; at least one sensor; a processor; and a memory storing instructions that, when executed by the processor, cause the electronic device to: identify a change of capacitance of the touch panel in case that the second area is moved; identify, using the at least one sensor, physical deformation of a visually exposed portion of the second area; identify a change of resistance based on the physical deformation of the visually exposed portion of the second area; and compensate a touch sensitivity of the touch panel, based on the change of capacitance for a predetermined time and the change of resistance depending on a degree of physical deformation. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the memory further stores instructions that cause the electronic device to: determine whether the second area is moved based on a determination of whether a user input for moving the flexible display is initiated or whether a preset condition for moving the flexible display is satisfied. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the memory further stores instructions that cause the electronic device to: determine whether the second area is moved by using an expansion detection sensor. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the memory further stores instructions that cause the electronic device to: identify the change of capacitance of the touch panel based on a capacitance value in the first area of the flexible display in consideration of a bending state or a lifting state and a change of the capacitance value in the second area for a predetermined time. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein the at least one sensor comprises at least one strain gauge sensor, and wherein the change of the resistance of the second area is obtained by using the at least one strain gauge sensor. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the at least one sensor comprises at least one strain gauge sensor, and wherein the at least one strain gauge sensor is disposed in a dummy section of the touch panel. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein the at least one sensor comprises at least one strain gauge sensor, and wherein the at least one strain gauge sensor comprises a plurality of strain gauge sensors, and two or more of the plurality of strain gauge sensors are connected in one direction in a form of a via bridge. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein the at least one sensor comprises at least one resistance measurement type strain gauge sensor, and wherein the at least one resistance measurement type strain gauge sensor comprises a plurality of strain gauge sensors, and four of the plurality of strain gauge sensors are connected in a form of a Wheatstone bridge. ### Claim 9 (depends on 1) The electronic device of claim 1, wherein the memory further stores instructions that cause the electronic device to: compensate the touch sensitivity of the touch panel by adjusting a threshold value, a gain, or a control voltage for a touch input of the touch panel. ### Claim 10 (depends on 1) The electronic device of claim 1, wherein the memory further stores instructions that cause the electronic device to: compensate the touch sensitivity of the touch panel by increasing a number of driving units of driving conductive lines included in the touch panel. ### Claim 11 A flexible display comprising: a touch panel including: a first insulating layer; an electrode layer disposed in the first insulating layer; a second insulating layer disposed under the first insulating layer; at least one sensor disposed in the first insulating layer; a first bridge for connection of the electrode layer, disposed in the second insulating layer beneath the at least one sensor; and a second bridge for connection of the at least one sensor, disposed in the second insulating layer beneath an electrode of the electrode layer, wherein the electrode layer is connected to the first bridge using a first via, and the at least one sensor is connected to the second bridge using a second via. ### Claim 12 (depends on 11) The flexible display of claim 11, wherein the electrode layer comprises a first electrode layer and a second electrode layer, and the first electrode layer and the second electrode layer are configured in a form of a metal mesh. ### Claim 13 (depends on 11) The flexible display of claim 11, wherein the at least one is disposed in a dummy section of the first insulating layer. ### Claim 14 (depends on 11) The flexible display of claim 11, wherein the at least one sensor comprises strain gauge sensors connected in one direction in a form of a via bridge. ### Claim 15 (depends on 11) The flexible display of claim 11, wherein the at least one sensor comprises strain gauge sensors connected in a Wheatstone bridge form. ### Claim 16 A flexible display comprising: a touch panel including: a first insulating layer; an electrode layer disposed in the first insulating layer and including a first electrode and a second electrode configured in a form of a metal mesh; a second insulating layer disposed under the first insulating layer; strain gauge sensor disposed in a dummy section of the first insulating layer; a first bridge for connection of the electrode layer, disposed on the second insulating layer beneath at least one of the strain gauge sensors; and a second bridge for connection of the strain gauge sensors disposed on the second insulating layer beneath an electrode of the electrode layer, wherein the electrode layer is connected to the first bridge using a first via, and wherein the strain gauge sensors are is connected to the second bridge using a second via. ### Claim 17 (depends on 16) The flexible display of claim 16, wherein the strain gauge sensors are connected in one direction in a form of a via bridge. ### Claim 18 (depends on 16) The flexible display of claim 16, wherein the strain gauge sensors are connected in a Wheatstone bridge form. ### Claim 19 (depends on 18) The flexible display of claim 18, wherein the rollable display is a youm-on cell touch active-matrix organic light emitting diode (AMOLED) (YOCTA).