# US 2018/0027673 A1 · Method for manufacturing display device and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0027673 A1 - Document ID: US20180027673A1 - Status: Published application - Kind: A1 - Application number: 15/646,233 - Filed: 2017-07-11 - Published: 2018-01-25 - Earliest claimed: 2016-07-21 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Naohisa ANDOU - Web page: https://patentgrep.com/patent/US20180027673A1 ## CPC - G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels} - H05K 1/0269: {for visual or optical inspection} - H05K 1/028: {Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence)} - H05K 3/46: Manufacturing multilayer circuits - H05K 13/0015: {Orientation; Alignment; Positioning} - H05K 13/0069: {Holders for printed circuit boards} - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/87: {Passivation; Containers; Encapsulations} - H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass - H10K 77/111: {Flexible substrates} - C09K 2323/00: Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition - G02F 1/133305: {Flexible substrates, e.g. plastics, organic film} - H05K 2201/056: Folded around rigid support or component - H05K 2203/166: Alignment or registration; Control of registration - H10K 2102/311: {Flexible OLED} - Y02E 10/549: Organic PV cells - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - 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 - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A method for manufacturing a display device includes preparing a flexible substrate that includes an alignment mark in a frame area, preparing a spacer that includes a notch or a hole penetrating from a back surface side to a display surface side of the spacer, disposing the spacer on a back surface side of the flexible substrate, and bending the bent area of the flexible substrate to conform to a shape of the spacer and disposing the terminal area of the flexible substrate on the back surface side of the spacer. In the step of disposing the spacer, the alignment mark is read through the notch or the hole from the back surface side of the flexible substrate so as to position the spacer on the flexible substrate. ## Claims ### Claim 1 A method for manufacturing a display device, comprising: preparing a flexible substrate on which a display area, a frame area, a bent area, and a terminal area are provided in this order and which includes an alignment mark, the display area displaying an image, the terminal area being provided with a terminal; preparing a spacer that includes a notch or a hole penetrating from a back surface side to a display surface side of the spacer; disposing the spacer on a back surface side of the flexible substrate; and bending the bent area to conform to a shape of the spacer and disposing the terminal area on the back surface side of the spacer, wherein in the step of disposing the spacer, the alignment mark is read through the notch or the hole from the back surface side of the flexible substrate so as to position the spacer on the flexible substrate. ### Claim 2 (depends on 1) The method for manufacturing the display device according to claim 1, wherein a first bottom surface is provided on the display surface side of the spacer, the first bottom surface being more recessed than other areas because of a first step being formed, in the step of preparing the flexible substrate, a first reinforcing film is provided on a back surface side of the display area, and in the step of disposing the spacer, the first bottom surface is disposed on the first reinforcing film such that the first reinforcing film does not overlap the first step. ### Claim 3 (depends on 2) The method for manufacturing the display device according to claim 2, wherein a second bottom surface is provided on the back surface side of the spacer, the second bottom surface being more recessed than other areas because of a second step being formed, in the step of preparing the flexible substrate, a second reinforcing film is provided on a back surface side of the terminal area, and in the step of disposing the terminal area on the back surface side of the spacer, the second reinforcing film is disposed on the second bottom surface such that the second reinforcing film does not overlap the second step. ### Claim 4 (depends on 1) The method for manufacturing the display device according to claim 1, wherein at least a pair of notches or a pair of holes are provided, the alignment mark is formed on the frame area, and in the step of disposing the spacer, the spacer is held and moved by using a holding tool and engaging the holding tool in the pair of notches or the pair of holes. ### Claim 5 A display device comprising: a spacer; and a flexible substrate that includes a display area for displaying an image, a frame area in a periphery of the display area, a bent area disposed outside the frame area and curved to conform to a shape of the spacer, and a terminal area disposed on a back surface side of the spacer through the bent area and provided with a terminal, wherein the flexible substrate includes an alignment mark, and the spacer includes a notch or a hole at a position corresponding to the alignment mark, the notch or the hole penetrating from a back surface side to a display surface side of the spacer. ### Claim 6 (depends on 5) The display device according to claim 5, wherein a first bottom surface is provided on the display surface side of the spacer, the first bottom surface being more recessed than other areas because of a first step being formed, and a first reinforcing film that is disposed on the first bottom surface is provided on the back surface side of the flexible substrate in the display area. ### Claim 7 (depends on 6) The display device according to claim 6, wherein a second bottom surface is provided on the back surface side of the spacer, the second bottom surface being more recessed than other areas because of a second step being formed, and a second reinforcing film that is disposed on the second bottom surface is provided on the display surface side of the flexible substrate in the terminal area. ### Claim 8 (depends on 7) The display device according to claim 7, wherein the spacer includes a guide section in contact with the bent area, and the notch or the hole is provided closer to the guide section than the first step and the second step. ### Claim 9 (depends on 5) The display device according to claim 5, wherein the alignment mark is formed in the frame area.