# US 12,010,903 B2 · Lamination apparatus and method of manufacturing display device using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,903 B2 - Document ID: US12010903B2 - Status: Granted - Kind: B2 - Application number: 17/865,511 - Filed: 2022-07-15 - Published: 2023-03-16 - Granted: 2024-06-11 - Earliest claimed: 2021-09-15 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Kisang Yoo - Web page: https://patentgrep.com/patent/US12010903B2 ## CPC - H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass - B32B 37/0046: {characterised by constructional aspects of the apparatus} - B32B 37/1018: {using only vacuum} - B32B 41/00: Arrangements for controlling or monitoring lamination processes; Safety arrangements - G06F 1/1637: {Details related to the display arrangement, including those related to the mounting of the display in the housing} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 1/1656: {Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203)} - B32B 2309/68: Vacuum - B32B 2457/20: Displays, e.g. liquid crystal displays, plasma displays - H10K 50/841: {Self-supporting sealing arrangements} - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/873: {Encapsulations} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A lamination apparatus includes a first jig which includes an accommodating recess defined by a bottom surface through which a plurality of vacuum holes is defined and side surfaces bent and extending from the bottom surface, a cover member that does not overlap at least one vacuum hole among the plurality of vacuum holes, a second jig disposed to face the first jig, a pad disposed on the second jig, and a controller which sets zero data based on a vacuum value measured from the at least one vacuum hole. ## Claims ### Claim 1 A lamination apparatus comprising: a first jig comprising an accommodating recess defined by a bottom surface through which a plurality of vacuum holes is defined and side surfaces bent and extending from the bottom surface; a cover member in which an opening exposing at least one vacuum hole among the plurality of vacuum holes and having a width wider than a width of the at least one vacuum hole is defined; a second jig disposed to face the first jig; a pad disposed on the second jig; and a controller which sets zero data based on a vacuum value measured from the at least one vacuum hole. ### Claim 2 (depends on 1) The lamination apparatus of claim 1, wherein the second jig ascends in a first direction until the pad contacts the at least one vacuum hole, and the controller sets information about a position of the first jig and a position of the second jig when the pad contacts the at least one vacuum hole as the zero data. ### Claim 3 (depends on 1) The lamination apparatus of claim 1, wherein the plurality of vacuum holes comprises a first vacuum hole which overlaps the cover member and a second vacuum hole which does not overlap the cover member, and the controller sets the zero data based on the vacuum value measured in the second vacuum hole. ### Claim 4 (depends on 3) The lamination apparatus of claim 3, wherein the pad comprises a protruded upper surface, and the second vacuum hole contacts a protruded portion of the pad. ### Claim 5 (depends on 1) The lamination apparatus of claim 1, wherein the cover member includes a tape, and the tape is attached to remaining vacuum holes of the plurality of vacuum holes except the at least one vacuum hole among the vacuum holes. ### Claim 6 (depends on 1) The lamination apparatus of claim 1, wherein the cover member is a setting window through which an opening is defined, the setting window is attached to the bottom surface of the first jig, and the at least one vacuum hole overlaps the opening and is not covered by the setting window. ### Claim 7 (depends on 1) The lamination apparatus of claim 1, wherein the controller controls a movement of the first and second jigs, controls an operation of the plurality of vacuum holes, and controls a measurement of vacuum values from the plurality of vacuum holes. ### Claim 8 (depends on 1) The lamination apparatus of claim 1, wherein the controller comprises: a processor which measures the vacuum value from the at least one vacuum hole and generates a plurality of data based on the vacuum value; and a determinator which resets the zero data based on the data. ### Claim 9 (depends on 1) The lamination apparatus of claim 1, wherein the controller further comprises a memory which stores the vacuum value and vacuum saturation data, and the vacuum value is measured multiple times according to a relative position between the first jig and the pad, and the vacuum saturation data are the vacuum value obtained when the vacuum value measured multiple times have constantly a same value. ### Claim 10 (depends on 9) The lamination apparatus of claim 9, wherein the memory further stores vacuum reference data, and the vacuum reference data are obtained by correcting the vacuum saturation data with a predetermined value. ### Claim 11 (depends on 10) The lamination apparatus of claim 10, wherein the memory further stores a Z-axis value which is a height value of an upper surface of the pad when the vacuum value is changed from a value corresponding to the vacuum reference data to another value. ### Claim 12 (depends on 11) The lamination apparatus of claim 11, wherein the memory further stores the zero data, and the zero data are the Z-axis value or a corrected Z-axis value obtained by correcting the Z-axis value. ### Claim 13 A method of manufacturing a display device, comprising: setting zero data of a lamination apparatus; and laminating a first target member to a second target member using the lamination apparatus, the setting the zero data of the lamination apparatus comprising: attaching a cover member to a first jig through which a plurality of vacuum holes is defined to expose at least one vacuum hole among the plurality of vacuum holes; moving a second jig facing the first jig and a pad disposed on the second jig toward the plurality of vacuum holes; and setting the zero data based on a vacuum value measured from the at least one vacuum hole, wherein an opening exposing the at least one vacuum hole and having a width wider than a width of the at least one vacuum hole is defined in the cover member. ### Claim 14 (depends on 13) The method of claim 13, wherein the cover member comprises a tape, and the attaching the cover member comprises attaching the tape to remaining vacuum holes except the at least one vacuum hole among the plurality of vacuum holes. ### Claim 15 (depends on 13) The method of claim 13, wherein the cover member is a setting window through which an opening is defined, and the attaching the cover member comprises: aligning the setting window such that the opening the setting window overlaps the at least one vacuum hole; and attaching the setting window to a bottom surface of the first jig. ### Claim 16 (depends on 13) The method of claim 13, wherein the setting the zero data comprises: generating vacuum reference data based on the vacuum value measured from the at least one vacuum hole; and generating a Z-axis value based on the vacuum reference data. ### Claim 17 (depends on 16) The method of claim 16, further comprising setting the Z-axis value or a corrected Z-axis value obtained by correcting the Z-axis value as the zero data, wherein the Z-axis value is a height value of an upper surface of the pad when the vacuum value is changed from a value corresponding to the vacuum reference data to another value. ### Claim 18 (depends on 16) The method of claim 16, wherein the generating the vacuum reference data comprises: measuring the vacuum value multiple times when a distance between the first jig and the pad is equal to or smaller than a predetermined distance; setting the measured value as vacuum saturation data when the vacuum value measured multiple times have constantly the same value; and correcting the vacuum saturation data with a predetermined value to generate the vacuum reference data. ### Claim 19 (depends on 16) The method of claim 16, wherein the generating the Z-axis value comprises: performing a first moving operation to move the second jig to a first direction until the vacuum value becomes a value corresponding to the vacuum reference data; performing a second moving operation following the first moving operation to move the second jig to the first direction until the vacuum value is changed from the value corresponding to the vacuum reference data to another value; and generating a height value of an upper surface of the pad as the Z-axis value when the vacuum value is changed from the value corresponding to the vacuum reference data to another value. ### Claim 20 (depends on 19) The method of claim 19, wherein a moving speed of the second jig in the first moving operation is different from a moving speed of the second jig in the second moving operation.