# US 11,907,490 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 11,907,490 B2 - Document ID: US11907490B2 - Status: Granted - Kind: B2 - Application number: 18/137,567 - Filed: 2023-04-21 - Published: 2023-10-26 - Granted: 2024-02-20 - Earliest claimed: 2022-04-22 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Changho Lee; Il-Joo Kim; Jong-Hwa Kim; Wonjun Choi - Web page: https://patentgrep.com/patent/US11907490B2 ## CPC - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0443: {using a single layer of sensing electrodes} - 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) ## Abstract A display device is disclosed that includes a pixel layer, a touch sensing layer, and a sensing pattern. The pixel layer includes first pixel units, each including first sub-light emitting regions, and second pixel units, each including second sub-light emitting regions. The touch sensing layer includes sensing electrodes, and driving electrodes electrically insulated from the sensing electrodes, at least some of the sensing electrodes and the driving electrodes each includes a dummy pattern defining dummy openings overlapping the first sub-light emitting regions when viewed in a plan view, and a sensing pattern electrically insulated from the dummy pattern and spaced apart from the first sub-light emitting regions and the second sub-light emitting regions when viewed in a plan view. The light blocking pattern is disposed on the touch sensing layer, defining light blocking openings overlapping the first sub-light emitting regions when viewed in a plan view, and overlapping the first pixel units when viewed in a plan view. ## Claims ### Claim 1 A display device comprising: a pixel layer including a plurality of first pixel units, each including a plurality of first sub-light emitting regions, and a plurality of second pixel units, each including a plurality of second sub-light emitting regions; a touch sensing layer including a plurality of sensing electrodes disposed on the pixel layer, and a plurality of driving electrodes electrically insulated from the sensing electrodes and disposed on the pixel layer, at least some of the sensing electrodes and the driving electrodes each includes a dummy pattern defining a plurality of dummy openings overlapping the first sub-light emitting regions when viewed in a plan view, and a sensing pattern electrically insulated from the dummy pattern and spaced apart from the first sub-light emitting regions and the second sub-light emitting regions when viewed in a plan view; and a light blocking pattern disposed on the touch sensing layer, defining a plurality of light blocking openings overlapping the first sub-light emitting regions when viewed in a plan view, and overlapping the first pixel units when viewed in a plan view. ### Claim 2 (depends on 1) The display device of claim 1, wherein an area of each of the light blocking openings is greater than or equal to an area of each of the first sub-light emitting regions when viewed in a plan view. ### Claim 3 (depends on 1) The display device of claim 1, wherein an area of each of the dummy openings is less than or equal to an area of each of the first sub-light emitting regions when viewed in a plan view. ### Claim 4 (depends on 1) The display device of claim 1, wherein at least one insulating layer is disposed between the dummy pattern and the sensing pattern. ### Claim 5 (depends on 1) The display device of claim 1, wherein the dummy pattern is spaced apart from the second pixel units when viewed in a plan view. ### Claim 6 (depends on 1) The display device of claim 1, wherein the dummy pattern is spaced apart from the sensing pattern when viewed in a plan view. ### Claim 7 (depends on 1) The display device of claim 1, wherein the light blocking pattern is spaced apart from the second pixel units when viewed in a plan view. ### Claim 8 (depends on 1) The display device of claim 1, wherein the touch sensing layer further includes a dummy sensing pattern disposed on a same layer as the sensing pattern and completely overlapping a portion of the dummy pattern when viewed in a plan view. ### Claim 9 (depends on 8) The display device of claim 8, wherein at least a portion of the dummy sensing pattern is disposed between two dummy openings that are adjacent to each other among the dummy openings when viewed in a plan view. ### Claim 10 (depends on 8) The display device of claim 8, wherein the dummy sensing pattern is electrically insulated from the sensing pattern. ### Claim 11 (depends on 1) The display device of claim 1, wherein the first sub-light emitting regions includes a plurality of first red light emitting regions, a plurality of first green light emitting regions, and a plurality of first blue light emitting regions. ### Claim 12 (depends on 11) The display device of claim 11, wherein the dummy pattern includes: a first dummy pattern defining a plurality of first dummy openings overlapping the first red light emitting regions; a second dummy pattern defining a plurality of second dummy openings overlapping the first green light emitting regions; and a third dummy pattern defining a plurality of third dummy openings overlapping the first blue light emitting regions. ### Claim 13 (depends on 12) The display device of claim 12, wherein the first dummy pattern is spaced apart from the second dummy pattern and the third dummy pattern when viewed in a plan view, and the second dummy pattern is spaced apart from the third dummy pattern when viewed in a plan view. ### Claim 14 A display device comprising: a pixel layer including a plurality of first pixel units, each including a plurality of first sub-light emitting regions, and a plurality of second pixel units, each including a plurality of second sub-light emitting regions; a plurality of sensing electrodes disposed on the pixel layer; a plurality of driving electrodes disposed on the pixel layer and electrically insulated from the sensing electrodes; a plurality of first bridge electrodes disposed on the pixel layer, electrically connecting the sensing electrodes to each other in columns, and each including a first bridge pattern defining a plurality of dummy openings overlapping the first sub-light emitting regions when viewed in a plan view; a plurality of second bridge electrodes disposed on the pixel layer, electrically connecting the driving electrodes to each other in rows, and each including a second bridge pattern spaced apart from the first sub-light emitting regions and the second sub-light emitting regions when viewed in a plan view; and a light blocking pattern disposed on the sensing electrodes, the driving electrodes, the first bridge electrodes, and the second bridge electrodes, defining a plurality of light blocking openings overlapping the first sub-light emitting regions when viewed in a plan view, and overlapping the first pixel units when viewed in a plan view. ### Claim 15 (depends on 14) The display device of claim 14, wherein an area of each of the dummy openings is less than or equal to an area of each of the first sub-light emitting regions when viewed in a plan view. ### Claim 16 (depends on 14) The display device of claim 14, wherein at least one insulating layer configured to electrically insulate the first bridge pattern from the second bridge pattern is disposed between the first bridge pattern and the second bridge pattern. ### Claim 17 (depends on 14) The display device of claim 14, wherein the first bridge pattern includes: a plurality of first bridge units, each including a dummy pattern defining the dummy openings; and a plurality of unit connection wires electrically connecting the first bridge units to each other. ### Claim 18 (depends on 17) The display device of claim 17, wherein the dummy pattern includes: a first dummy pattern defining a plurality of first dummy openings; a second dummy pattern defining a plurality of second dummy openings; a third dummy pattern defining a plurality of third dummy openings; a first dummy connection part electrically connecting the first dummy pattern to the second dummy pattern; and a second dummy connection part electrically connecting the second dummy pattern to the third dummy pattern. ### Claim 19 (depends on 17) The display device of claim 17, wherein the first bridge units are spaced apart from the second pixel unit when viewed in a plan view. ### Claim 20 (depends on 14) The display device of claim 14, further comprising a dummy bridge pattern disposed on a same layer as the second bridge pattern and completely overlapping a portion of the first bridge pattern when viewed in a plan view. ### Claim 21 (depends on 20) The display device of claim 20, wherein at least a portion of the dummy bridge pattern is disposed between two dummy openings that are adjacent to each other among the dummy openings when viewed in a plan view. ### Claim 22 (depends on 20) The display device of claim 20, wherein the dummy bridge pattern is electrically insulated from the second bridge pattern. ### Claim 23 A display device comprising: a pixel layer including a plurality of first pixel units, each including a plurality of first sub-light emitting regions, and a plurality of second pixel units, each including a plurality of second sub-light emitting regions; a plurality of sensing electrodes disposed on the pixel layer; a plurality of driving electrodes disposed on the pixel layer and electrically insulated from the sensing electrodes; a plurality of first bridge electrodes disposed on the pixel layer, electrically connecting the sensing electrodes to each other in columns, and each including a second bridge pattern spaced apart from the first sub-light emitting regions and the second sub-light emitting regions when viewed in a plan view; a plurality of second bridge electrodes disposed on the pixel layer, electrically connecting the driving electrodes to each other in rows, and each including a first bridge pattern defining a plurality of dummy openings overlapping the first sub-light emitting regions when viewed in a plan view; and a light blocking pattern disposed on the sensing electrodes, the driving electrodes, the first bridge electrodes, and the second bridge electrodes, defining a plurality of light blocking openings overlapping the first sub-light emitting regions when viewed in a plan view, and overlapping the first pixel units when viewed in a plan view.