Title:
DEPOSITION MASK FOR OLED PIXEL DEPOSITION
Document Type and Number:
WIPO Patent Application WO/2024/071868
Kind Code:
A1
Abstract:
A deposition mask according to an embodiment comprises a metal plate in which a first surface and a second surface opposite to the first surface are defined, wherein the metal plate comprises a deposition area and a non-deposition area, the deposition area comprises a valid area and a invalid area, the valid area has arranged therein a small surface hole formed on the first surface, a large surface hole formed on the second surface, and a plurality of through-holes formed by a connection unit that connects the small surface hole and the large surface hole, the small surface hole has a step height defined therein, the step height being defined as a height of an area in which a width of the small surface hole increases as the small surface hole extends in a direction toward the first surface from the connection unit, and the step height of the small surface hole is 0 μm.
Inventors:
KWON KI YOUNG (KR)
LEE KWEON JIN (KR)
LEE KWEON JIN (KR)
Application Number:
PCT/KR2023/014560
Publication Date:
April 04, 2024
Filing Date:
September 22, 2023
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H10K71/00; C23C14/04; H10K71/16
Foreign References:
| KR20210124693A | 2021-10-15 | |||
| KR102427524B1 | 2022-08-01 | |||
| KR20220020317A | 2022-02-18 | |||
| KR20200027253A | 2020-03-12 | |||
| KR102439867B1 | 2022-09-02 |
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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