# US 12,216,499 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 12,216,499 B2 - Document ID: US12216499B2 - Status: Granted - Kind: B2 - Application number: 17/986,064 - Filed: 2022-11-14 - Published: 2023-08-03 - Granted: 2025-02-04 - Earliest claimed: 2022-01-28 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Jong Hyun Lee; Yun Jae Kim - Web page: https://patentgrep.com/patent/US12216499B2 ## CPC - 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 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 1/1656: {Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203)} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A foldable device includes: a display panel; a digitizer disposed on a surface of the display panel and comprising a base layer, first conductive patterns disposed between the base layer and the display panel, and second conductive patterns disposed on an opposite side to the first conductive patterns with the base layer interposed therebetween; a first adhesive member disposed between the digitizer and the display panel and in direct contact with the digitizer; and a second adhesive member disposed on an opposite side to the first adhesive member with the digitizer interposed therebetween and in direct contact with the digitizer. The digitizer further defines a digitizer hole penetrating through the digitizer, and the base layer comprises a protrusion having a shape protruding from an edge of the base layer located at a shortest distance from the digitizer hole toward an outside of the base layer. ## Claims ### Claim 1 A foldable display device comprising: a display panel; a digitizer disposed on a surface of the display panel and comprising a base layer, a plurality of first conductive patterns disposed between the base layer and the display panel, and a plurality of second conductive patterns disposed on an opposite side to the first conductive patterns with the base layer interposed therebetween; a first adhesive member disposed between the digitizer and the display panel and in direct contact with the digitizer; and a second adhesive member disposed on an opposite side to the first adhesive member with the digitizer interposed therebetween and in direct contact with the digitizer, wherein the digitizer further comprises a digitizer hole penetrating through the digitizer, a first step-covering pattern disposed in a same layer with the first conductive patterns, and a second step-covering pattern disposed in a same layer with the second conductive patterns, wherein the first adhesive member defines a first adhesive member hole penetrating through the first adhesive member and in line with the digitizer hole in a thickness direction, and wherein the second adhesive member defines a second adhesive member hole penetrating through the second adhesive member and in line with the digitizer hole in the thickness direction. ### Claim 2 (depends on 1) The device of claim 1, wherein the first step-covering pattern is disposed between two adjacent first conductive patterns of the plurality of first conductive patterns, and wherein the second step-covering pattern is disposed between two adjacent second conductive patterns of the plurality of second conductive patterns. ### Claim 3 (depends on 2) The device of claim 2, wherein the first step-covering pattern is spaced apart from the first conductive patterns, and wherein the second step-covering pattern is spaced apart from the second conductive patterns. ### Claim 4 (depends on 3) The device of claim 3, wherein the first step-covering pattern comprises a same material as the first conductive patterns, and wherein the second step-covering pattern comprises a same material as the second conductive patterns. ### Claim 5 (depends on 3) The device of claim 3, wherein a surface of the first step-covering pattern is in direct contact with the base layer while an opposite surface of the first step-covering pattern is in direct contact with the first adhesive member, and wherein a surface of the second step-covering pattern is in direct contact with the base layer while an opposite surface of the second step-covering pattern is in direct contact with the second adhesive member. ### Claim 6 (depends on 5) The device of claim 5, wherein the opposite surface of the first step-covering pattern has a flat shape, and wherein the opposite surface of the second step-covering pattern has a flat shape. ### Claim 7 (depends on 3) The device of claim 3, wherein the first step-covering pattern and the first conductive patterns have a same thickness, and wherein the second step-covering pattern and the second conductive patterns have a same thickness. ### Claim 8 (depends on 3) The device of claim 3, wherein a shortest distance from the first step-covering pattern to the adjacent first conductive patterns is about 1 to about 8 micrometers (μm), and wherein a shortest distance from the second step-covering pattern to the adjacent second conductive patterns is about 1 to about 8 μm. ### Claim 9 (depends on 2) The device of claim 2, wherein a side surface of the first step-covering pattern is in direct contact with a side surface of at least one of the adjacent first conductive patterns, and wherein a side surface of the second step-covering pattern is in direct contact with a side surface of at least one of the adjacent second conductive patterns. ### Claim 10 (depends on 9) The device of claim 9, wherein each of the first step-covering pattern and the second step-covering pattern comprise an insulating material. ### Claim 11 (depends on 10) The device of claim 10, wherein the first step-covering pattern and the first conductive pattern have a same thickness, and wherein the second step-covering pattern and the second conductive pattern have a same thickness. ### Claim 12 (depends on 2) The device of claim 2, wherein the base layer comprises a protrusion having a shape protruding from an edge of the base layer located at a shortest distance from the digitizer hole toward an outside of the base layer. ### Claim 13 (depends on 1) The device of claim 1, further comprising: a panel support disposed between the display panel and the digitizer; and a metal support disposed on a surface of the panel support with the digitizer interposed therebetween, wherein the panel support defines a panel support hole that penetrates through the panel support and is in line with the digitizer hole in the thickness direction, and wherein the metal support defines a metal support hole that penetrates through the metal support and is in line with the digitizer hole in the thickness direction. ### Claim 14 (depends on 13) The device of claim 13, further comprising: a barrier member disposed between the display panel and the digitizer, wherein the barrier member defines a barrier member hole that penetrates through the barrier member and is in line with the digitizer hole in the thickness direction. ### Claim 15 A foldable display device comprising: a display panel; a digitizer disposed on a surface of the display panel and comprising a base layer, a plurality of first conductive patterns disposed between the base layer and the display panel, and a plurality of second conductive patterns disposed on an opposite side to the first conductive patterns with the base layer interposed therebetween; a first adhesive member disposed between the digitizer and the display panel and in direct contact with the digitizer; and a second adhesive member disposed on an opposite side to the first adhesive member with the digitizer interposed therebetween and in direct contact with the digitizer, wherein the digitizer defines a digitizer hole penetrating through the digitizer, wherein the first adhesive member defines a first adhesive member hole that penetrates through the first adhesive member and is in line with the digitizer hole in a thickness direction, wherein the second adhesive member defines a second adhesive member hole that penetrates through the second adhesive member and is in line with the digitizer hole in the thickness direction, and wherein each of the first adhesive member and the second adhesive member has a thickness of about 15 to about 50 μm. ### Claim 16 (depends on 15) The device of claim 15, wherein a surface of each of the first conductive patterns is in direct contact with the base layer, and the first adhesive member covers a remaining surface of each of the first conductive patterns, and wherein a surface of each of the second conductive patterns is in direct contact with the base layer, and the second adhesive member covers a remaining surface of each of the second conductive patterns. ### Claim 17 (depends on 15) The device of claim 15, wherein the base layer comprises a protrusion having a shape protruding from an edge of the base layer located at a shortest distance from the digitizer hole toward an outside of the base layer. ### Claim 18 A foldable display device comprising: a display panel; a digitizer disposed on a surface of the display panel and comprising a base layer, a plurality of first conductive patterns disposed between the base layer and the display panel, and a plurality of second conductive patterns disposed on an opposite side to the first conductive patterns with the base layer interposed therebetween; a first adhesive member disposed between the digitizer and the display panel and in direct contact with the digitizer; and a second adhesive member disposed on an opposite side to the first adhesive member with the digitizer interposed therebetween and in direct contact with the digitizer, wherein the digitizer defines a digitizer hole penetrating through the digitizer, and wherein the base layer comprises a protrusion having a shape protruding from an edge of the base layer located at a shortest distance from the digitizer hole toward an outside of the base layer. ### Claim 19 (depends on 18) The device of claim 18, further comprising: a panel support disposed between the display panel and the digitizer, wherein a side surface of the protrusion is disposed more inward than a side surface of the panel support corresponding thereto in a view in a thickness direction. ### Claim 20 (depends on 19) The device of claim 19, wherein the panel support defines a panel support hole that penetrates through the panel support and overlaps with the digitizer hole in the thickness direction, and wherein an edge of the panel support located at a shortest distance from the panel support hole has a shape protruding outward from the panel support hole.