# US 2017/0285378 A1 · Large substrate and method of manufacturing large substrate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0285378 A1 - Document ID: US20170285378A1 - Status: Published application - Kind: A1 - Application number: 15/467,381 - Filed: 2017-03-23 - Published: 2017-10-05 - Earliest claimed: 2016-03-30 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Yasuhiro TAKEUCHI - Web page: https://patentgrep.com/patent/US20170285378A1 ## CPC - G02F 1/1339: Gaskets; Spacers; Sealing of cells - G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)} - G02F 1/133351: {Manufacturing of individual cells out of a plurality of cells, e.g. by dicing} - G02F 1/1341: Filling or closing of cells - H10D 30/6723: {having light shields} - H10D 86/0212: {comprising manufacture, treatment or coating of substrates} - H10D 86/411: {characterised by materials, geometry or structure of the substrates} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/451: {characterised by the compositions or shapes of the interlayer dielectrics} - H10D 86/481: {integrated with passive devices, e.g. auxiliary capacitors} - H10D 86/60: wherein the TFTs are in active matrices - G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)} - G02F 1/1337: Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers - G02F 1/13396: {Spacers having different sizes} - G02F 1/13415: {Drop filling process} - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - G02F 2201/123: pixel - 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 A large substrate includes, in which the sealing material includes at least a first sealing material disposed between an element substrate and a counter substrate in a central region of the first large substrate and the second large substrate, and a second sealing material disposed between the element substrate and the counter substrate in an outside region of the first large substrate and the second large substrate, and when a cell gap in a display region of the element substrate and the counter substrate in the central region and the outside region is set to be constant, a gap amount of a region in which the first sealing material is provided and a gap amount of at least a portion of a region in which the second sealing material is provided are different from each other. ## Claims ### Claim 1 A large substrate comprising: a first large substrate which is provided with a plurality of first substrates; a second large substrate which is provided with a plurality of second substrates; a sealing material which is disposed between the first large substrate and the second large substrate which are disposed to face each other; and a liquid crystal layer which is disposed by being surrounded by the sealing material, wherein in a certain region, a gap amount of a display region and a gap amount of a region in which the sealing material is provided are different from each other on the first substrate and the second substrate. ### Claim 2 (depends on 1) The large substrate according to claim 1, wherein the gap amount of the display region and the gap amount of the region in which the sealing material is provided are different from each other on the entire first large substrate and the second large substrate, and wherein the gap amount of the region, in which the sealing material is provided, in the certain region is different from of the gap amount of the region, in which the sealing material is provided, in a region other than the certain region. ### Claim 3 A large substrate comprising: a first large substrate which is provided with a plurality of first substrates; a second large substrate which is provided with a plurality of second substrates; a sealing material which is disposed between the first large substrate and the second large substrate which face each other; and a liquid crystal layer which is disposed by being surrounded by the sealing material, wherein the sealing material includes at least a first sealing material which is disposed between the first substrate and the second substrate in a central region of the first large substrate and the second large substrate, and a second sealing material which is disposed between the first substrate and the second substrate in an outside region of the first large substrate and the second large substrate, and wherein when a cell gap in a display region of the first substrate and the second substrate in the central region and the outside region is set to be constant, a gap amount of a region in which the first sealing material is provided and a gap amount of at least a portion of a region in which the second sealing material is provided are different from each other. ### Claim 4 (depends on 1) The large substrate according to claim 1, wherein the gap amount is formed by providing a step in at least one of the first substrate and the second substrate. ### Claim 5 (depends on 4) The large substrate according to claim 4, wherein the step includes a first step which is provided in the region in which the first sealing material is disposed, and a second step which is provided in the region in which the second sealing material is disposed, and wherein an amount of the first step is larger than that of the second step. ### Claim 6 (depends on 4) The large substrate according to claim 4, wherein the step includes a first step which is provided in the region in which the first sealing material is disposed, and a second step which is provided in the region in which the second sealing material is disposed, and wherein an amount of the first step is smaller than that of the second step. ### Claim 7 (depends on 3) The large substrate according to claim 3, wherein the first large substrate and the second large substrate include a sealing region in which the first sealing material and the second sealing material are provided, and a display region which is surrounded by the sealing region, and wherein a film thickness of an insulating layer in the sealing region is smaller than a film thickness of an insulating layer in the display region. ### Claim 8 (depends on 3) The large substrate according to claim 3, wherein the first large substrate and the second large substrate include a sealing region in which the first sealing material and the second sealing material are provided, and a display region which is surrounded by the sealing region, and wherein a film thickness of an insulating layer in the display region is smaller than a film thickness of an insulating layer of the sealing region. ### Claim 9 (depends on 3) The large substrate according to claim 3, wherein the first large substrate and the second large substrate include a sealing region in which the first sealing material and the second sealing material are provided, and a display region which is surrounded by the sealing region, and wherein a film thickness of an insulating layer in a first sealing region in which at least the first sealing material is provided to be smaller than a film thickness of an insulating layer in the display region. ### Claim 10 (depends on 3) The large substrate according to claim 3, wherein in the first large substrate and the second large substrate, the amount of the step gradually changes from the central region to the outside region. ### Claim 11 A method of manufacturing a large substrate, comprising: coating a first large substrate which is provided with a plurality of first substrates with a sealing material; adding a liquid crystal dropwise into a region surrounded by the sealing material; bonding the first large substrate and a second large substrate which is provided with a plurality of second substrates to each other; and forming a step in at least one of the first substrate and the second substrate before coating the first large substrate with the sealing material. ### Claim 12 A method of manufacturing a large substrate, comprising: coating a central region of a first large substrate which is provided with a plurality of first substrates with a first sealing material; coating an outside region of the first large substrate with a second sealing material; adding a liquid crystal dropwise into a region surrounded by the first sealing material and the second sealing material; bonding the first large substrate and a second large substrate which is provided with a plurality of second substrates to each other; and forming a step in at least one of the first substrate and the second substrate before coating the first large substrate with the first sealing material such that a gap amount of a region which is coated with the first sealing material and a gap amount of at least a portion of the region which is coated with the second sealing material are different from each other in a case where a cell gap in a display region of the first substrate and the second substrate is set to be constant. ### Claim 13 (depends on 12) The method of manufacturing a large substrate according to claim 12, wherein in the forming of the step, the step is formed in at least one substrate of the first substrate and the second substrate by removing a portion of the region which is coated with the first sealing material and the second sealing material. ### Claim 14 (depends on 12) The method of manufacturing a large substrate according to claim 12, wherein in the forming of the step, the step is formed in at least one substrate of the first substrate and the second substrate by removing a portion of the display region.