# US 12,765,307 B2 · Stamp donor plate and method for 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 12,765,307 B2 - Document ID: US12765307B2 - Status: Granted - Kind: B2 - Application number: 18/426,456 - Filed: 2024-01-30 - Published: 2024-08-01 - Granted: 2026-10-13 - Earliest claimed: 2023-01-31 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Jusang Rhim; Yuseop Shin; Dongseok Lee; Sunghwan Yoon; Minjae Kang; Rokhee Lee - Web page: https://patentgrep.com/patent/US12765307B2 ## CPC - H10P 72/0446: {Apparatus for mounting on conductive members, e.g. leadframes or conductors on insulating substrates} - H10W 90/00: Package configurations - H10P: GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10 - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A stamp donor plate includes a stamp donor plate substrate including an inner area and an outer area surrounding the inner area; and a stamp structure disposed on the stamp donor plate substrate, wherein the stamp structure includes a plurality of protrusions, wherein the plurality of protrusions include a plurality of first protrusions arranged on an inner area, and a plurality of second protrusions arranged on the outer area. ## Claims ### Claim 1 A stamp donor plate comprising: a stamp donor plate substrate including an inner area and an outer area surrounding the inner area; and a stamp structure disposed on the stamp donor plate substrate, wherein the stamp structure includes a plurality of protrusions including a plurality of first protrusions arranged on the inner area and a plurality of second protrusions arranged on the outer area, wherein each of the plurality of protrusions has a first surface in contact with the stamp donor plate substrate and a second surface opposite to the first surface, wherein a width of the second surface is larger than a width of the first surface, and wherein the second surface of the protrusions adjacent to each other contact each other at a boundary therebetween. ### Claim 2 (depends on 1) The stamp donor plate of claim 1, wherein the second surface of the plurality of first protrusions of the stamp structure constitute one flat surface. ### Claim 3 (depends on 1) The stamp donor plate of claim 1, wherein each of the first protrusion and the second protrusion has a trapezoidal cross-section. ### Claim 4 (depends on 1) The stamp donor plate of claim 1, further comprising: a first air flow passage defined between adjacent ones of the plurality of first protrusions; and a second air flow passage defined between adjacent ones of the plurality of second protrusions. ### Claim 5 (depends on 4) The stamp donor plate of claim 4, wherein the first air flow passage and the second air flow passage have different widths, and wherein the second air flow passage has a width larger than a width of the first air flow passage. ### Claim 6 (depends on 1) The stamp donor plate of claim 1, wherein each of the plurality of protrusions includes a first surface in contact with the stamp donor plate substrate and a second surface opposite the first surface, and wherein the stamp donor plate includes an air flow lane defined on the second surface. ### Claim 7 (depends on 6) The stamp donor plate of claim 6, wherein the air flow lane has a V-shaped groove extending along one direction of the stamp donor plate substrate. ### Claim 8 (depends on 6) The stamp donor plate of claim 6, wherein the air flow lane has a width smaller than a width of the light-emitting element. ### Claim 9 A stamp donor plate comprising: a stamp donor plate substrate including an inner area and an outer area surrounding the inner area; and a stamp structure disposed on the stamp donor plate substrate, wherein the stamp donor plate includes an inner area and an outer area, wherein the stamp structure includes a plurality of first protrusions arranged on the inner area and a plurality of second protrusions arranged on the outer area, wherein the plurality of first protrusions and the plurality of second protrusions are disposed on the same surface of the stamp donor plate substrate, wherein lower surfaces of adjacent first protrusions contact each other, and lower surfaces of adjacent second protrusions contact each other, wherein a first air flow passage is formed between opposing surfaces of adjacent ones of the plurality of first protrusions, and a second air flow passage is formed between opposing surfaces of adjacent ones of the plurality of second protrusions, and wherein a cross-sectional area of the second air flow passage is larger than a cross-sectional area of the first air flow passage. ### Claim 10 (depends on 9) The stamp donor plate of claim 9, wherein each of the plurality of protrusions has a first surface in contact with the stamp donor plate substrate and a second surface opposite to the first surface. ### Claim 11 (depends on 10) The stamp donor plate of claim 10, wherein each of the first protrusion and the second protrusion has a trapezoidal cross-section. ### Claim 12 (depends on 10) The stamp donor plate of claim 10, wherein the stamp donor plate includes an air flow lane defined on the second surface. ### Claim 13 (depends on 9) The stamp donor plate of claim 9, wherein the air flow lane has a V-shaped groove extending along one direction of the stamp donor plate substrate.