# US 10,503,002 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 10,503,002 B2 - Document ID: US10503002B2 - Status: Granted - Kind: B2 - Application number: 15/922,285 - Filed: 2018-03-15 - Published: 2018-09-20 - Granted: 2019-12-10 - Earliest claimed: 2017-03-17 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Arihiro Takeda; Shoji Hinata; Yoshikatsu Imazeki; Nobuko Fukuoka; Jin Hirosawa - Web page: https://patentgrep.com/patent/US10503002B2 ## CPC - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)} - G02F 1/133514: {Colour filters} - G02F 1/1343: Electrodes {(reflective electrodes G02F1/133553)} - G02F 1/1345: Conductors connecting electrodes to cell terminals - G02F 1/136286: {Wiring, e.g. gate line, drain line} - 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} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - H10D 86/411: {characterised by materials, geometry or structure of the substrates} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - G02F 1/1339: Gaskets; Spacers; Sealing of cells - G02F 2201/121: common or background - G02F 2201/123: pixel - G02F 2202/16: conductive - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES ## Abstract According to one embodiment, a display device includes a first substrate including a first insulating substrate located in a first area and a second area, and a first conductive layer provided in the second area, a second substrate including a second insulating substrate located in the first area, and a second conductive layer, and a first connection line opposed to a first side surface of the second insulating substrate to electrically connect the first conductive layer and the second conductive layer. The first connection line is formed of a photosensitive resin containing a conductive material. ## Claims ### Claim 1 A display device, comprising: a first substrate comprising a first insulating substrate located in a first area and a second area arranged with the first area, and a first conductive layer provided in the second area; a second substrate comprising a second insulating substrate opposed to the first substrate and located in the first area, and a second conductive layer provided above a surface on a side opposite to the side of the second insulating substrate which is opposed to the first substrate; and a first connection line opposed to a first side surface of the second insulating substrate to electrically connect the first conductive layer and the second conductive layer, wherein the first area is an area where the first substrate and the second substrate overlap, the second area is an area where the first substrate and the second substrate do not overlap, and the first connection line is formed of a photosensitive resin containing a conductive material. ### Claim 2 (depends on 1) The display device of claim 1, further comprising: an insulating member which is in contact with the first side surface of the second insulating substrate and the first substrate, wherein the first connection line is in contact with the insulating member. ### Claim 3 (depends on 2) The display device of claim 2, wherein the insulating member includes a side surface in contact with the first connection line, and if the first substrate is referred to as a lower side and the second substrate is referred to as an upper side, the side surface of the insulating member is a forward tapered surface. ### Claim 4 (depends on 1) The display device of claim 1, further comprising: an insulating member which is in contact with the first side surface of the second insulating substrate and the first substrate and which covers the second conductive layer, wherein the first connection line is in contact with the insulating member, and is in contact with the second conductive layer through a contact hole formed in the insulating member. ### Claim 5 (depends on 1) The display device of claim 1, wherein the second conductive layer and the first connection line are integrally formed of the same material. ### Claim 6 (depends on 1) The display device of claim 1, wherein the first substrate further comprises a first pad provided in the second area, and a first line which electrically connects the first conductive layer and the first pad. ### Claim 7 (depends on 1) The display device of claim 1, wherein a width of the first connection line is larger than a width of the first conductive layer, in a direction of extension of the first side surface of the second insulating substrate. ### Claim 8 (depends on 1) The display device of claim 1, further comprising: a second connection line opposed to the first side surface of the second insulating substrate and provided independently of the first connection line to electrically connect the first conductive layer and the second conductive layer. ### Claim 9 (depends on 1) The display device of claim 1, further comprising: a detection circuit electrically connected to the first conductive layer to read a sensor signal output from the second conductive layer. ### Claim 10 (depends on 9) The display device of claim 9, wherein the second conductive layer comprises a detection electrode located in a display area of the first area, and a second pad located in a non-display area other than the display area and connected to the detection electrode, the first connection line is in contact with the second pad, and the first substrate further comprises a sensor drive electrode intersecting the detection electrode. ### Claim 11 A display device comprising: a first substrate comprising a plurality of switching elements, a sensor drive electrode, and a first pad; a second substrate comprising a second insulating substrate having a first main surface opposed to the first substrate and a second main surface on a side opposite to the first main surface, a detection electrode formed on the second main surface, a second pad connected to the detection electrode; and a connection line containing a conductive material and electrically connecting the first pad and the second pad, wherein the connection line is formed of a photosensitive resin containing a conductive material, the first pad is provided in an area where the first substrate is exposed from the second substrate, and the second pad, the connection line, and the detection electrode is covered with an insulating layer. ### Claim 12 (depends on 11) The display device of claim 11, further comprising: a sealing member bonding the first substrate and the second substrate; and an insulating member, wherein the insulating member is in contact with a side surface of the second insulating substrate located on a boundary between a first area where the first substrate and the second substrate overlap and a second area where the first substrate and the second substrate do not overlap, the sealing member, and the first substrate in the second area. ### Claim 13 (depends on 12) The display device of claim 12, wherein the sealing member does not overlap the boundary between the first area and the second area, and a bump surrounded by the first substrate, the second substrate, and the sealing member is filled with the insulating member. ### Claim 14 (depends on 13) The display device of claim 13, wherein the first substrate further comprises in the first area, a first insulating film covering the switching element, a second insulating film on the first insulating film, an alignment film on the second insulating film, and a pixel electrode electrically connected to the switching element, the sensor drive electrode is held between the first insulating film and the second insulating film, the pixel electrode is held between the second insulating film and the alignment film, and the first insulating film and the second insulating film extend in the second area. ### Claim 15 (depends on 14) The display device of claim 14, wherein the insulating member is in contact with the second insulating film in the second area. ### Claim 16 (depends on 15) The display device of claim 15, wherein the insulating member is in contact with the first insulating film in the second area. ### Claim 17 (depends on 16) The display device of claim 16, wherein the first substrate further includes a metal layer which relays connection between the first pad and the connection line in the second area, and the metal layer is formed on the first insulating layer. ### Claim 18 (depends on 17) The display device of claim 17, wherein the first substrate further includes a line connecting the first pad and the metal layer, and the metal layer and the line are connected via a contact hole of the first insulating film in the second area.