# US 11,309,367 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 11,309,367 B2 - Document ID: US11309367B2 - Status: Granted - Kind: B2 - Application number: 17/083,248 - Filed: 2020-10-28 - Published: 2021-09-23 - Granted: 2022-04-19 - Earliest claimed: 2020-03-20 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Chun Gi You; Tae Ik Kim; Hyun Sik Park - Web page: https://patentgrep.com/patent/US11309367B2 ## CPC - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - H10K 59/40: OLEDs integrated with touch screens - H10K 59/873: {Encapsulations} - H10K 59/8792: {comprising light absorbing layers, e.g. black layers} - G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices - 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 - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 77/10: Substrates, e.g. flexible substrates - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes: a display panel including a base substrate having a display region and a hole region included in the display region; a touch sensor including a light blocking member disposed on the display panel, a first sensing insulating layer covering the light blocking member, a sensing electrode layer disposed on the first sensing insulating layer, and a second sensing insulating layer covering the sensing electrode layer; a polarizing layer disposed on the touch sensor; and a cover window disposed on the polarizing layer. At least one of the first sensing insulating layer and the second sensing insulating layer exposes at least a portion of the hole region. ## Claims ### Claim 1 A display device comprising: a display panel including a base substrate having a display region and a hole region included in the display region; a touch sensor including a light blocking member disposed on the display panel, a first sensing insulating layer covering the light blocking member, a sensing electrode layer disposed on the first sensing insulating layer, and a second sensing insulating layer covering the sensing electrode layer; a polarizing layer disposed on the touch sensor; and a cover window disposed on the polarizing layer, wherein at least one of the first sensing insulating layer and the second sensing insulating layer exposes at least a portion of the hole region, and wherein the first sensing insulating layer is horizontally adjacent to the light blocking member. ### Claim 2 (depends on 1) The display device of claim 1, wherein the hole region includes a first region through which light is transmitted and a second region which surrounds a periphery of the first region and blocks light. ### Claim 3 (depends on 2) The display device of claim 2, wherein at least one of the first sensing insulating layer and the second sensing insulating layer does not overlap the first region while overlapping the second region. ### Claim 4 (depends on 2) The display device of claim 2, wherein the display panel further includes: a pixel circuit layer disposed on the base substrate; a light emitting element layer disposed on the pixel circuit layer; and an encapsulation layer disposed above the light emitting element layer while being vertically spaced apart from the light emitting element layer, to cover the light emitting element layer and define a space between the encapsulation layer and the light emitting element layer. ### Claim 5 (depends on 4) The display device of claim 4, wherein the encapsulation layer substantially entirely overlaps the hole region. ### Claim 6 (depends on 4) The display device of claim 4, wherein the encapsulation layer has a lower surface comprising a groove overlapping at least a portion of the hole region. ### Claim 7 (depends on 6) The display device of claim 6, wherein the groove substantially entirely overlaps the first region. ### Claim 8 (depends on 6) The display device of claim 6, wherein at least one of the first sensing insulating layer and the second sensing insulating layer overlaps at least a portion of the groove. ### Claim 9 (depends on 4) The display device of claim 4, wherein the light blocking member is directly disposed on the encapsulation layer to overlap the second region and not to overlap the first region. ### Claim 10 (depends on 4) The display device of claim 4, wherein the encapsulation layer comprises transparent glass. ### Claim 11 (depends on 4) The display device of claim 4, wherein the sensing electrode layer overlaps the display region and does not overlap the hole region. ### Claim 12 (depends on 4) The display device of claim 4, wherein the pixel circuit layer and the light emitting element layer overlap the display region and do not overlap the first region. ### Claim 13 (depends on 4) The display device of claim 4, wherein the pixel circuit layer includes a buffer layer, a semiconductor layer disposed on the buffer layer, a first insulating layer disposed over the semiconductor layer, a first conductive layer disposed on the first insulating layer, and a second insulating layer disposed over the first conductive layer, wherein at least one of the first insulating layer and the second insulating layer overlaps the second region. ### Claim 14 (depends on 4) The display device of claim 4, wherein the light emitting element layer includes a first pixel electrode, a pixel defining layer disposed over the first pixel electrode, a light emitting layer disposed on the first pixel electrode exposed by the pixel defining layer, and a second pixel electrode disposed on the light emitting layer, wherein the pixel defining layer and the light emitting layer overlap the display region, and do not overlap the hole region. ### Claim 15 (depends on 2) The display device of claim 2, wherein the polarizing layer overlaps at least a portion of the second region and does not overlap the first region. ### Claim 16 (depends on 1) The display device of claim 1, wherein at least one of the first sensing insulating layer and the second sensing insulating layer includes at least one of silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, and aluminum oxide. ### Claim 17 A display panel comprising: a base substrate having a display region and a hole region included in the display region; a pixel circuit layer disposed on the base substrate; a light emitting element layer disposed on the pixel circuit layer; and an encapsulation layer spaced apart from the light emitting element layer by a predetermined distance, the encapsulation layer being disposed above the light emitting element layer to cover the light emitting element layer and define a space between the encapsulation layer and the light emitting element layer, wherein the encapsulation layer substantially entirely overlaps the hole region, wherein the hole region comprises a first region through which light is transmitted and a second region which surrounds a periphery of the first region to block light, wherein the encapsulation layer has a lower surface comprising a groove overlapping at least a portion of the hole region, and wherein the groove of the encapsulation substantially entirely covers the first region of the hole region. ### Claim 18 (depends on 17) The display panel of claim 17, wherein the pixel circuit layer and the light emitting element layer overlap the display region and do not overlap the first region.