Title:
DEPOSITION MASK MADE OF METAL FOR OLED PIXEL DEPOSITION AND METHOD FOR MANUFACTURING DEPOSITION MASK
Document Type and Number:
WIPO Patent Application WO/2021/215642
Kind Code:
A1
Abstract:
A deposition mask according to an embodiment comprises a metal plate comprising a deposition area and a non-deposition area. The through-hole comprises a communicating portion connected to a first facing hole configured such that the first diameter slopes at an acute angle with regard to one surface in the transverse-axis direction of the metal plate, and a communicating portion connected to a second facing hole configured such that the first diameter slopes at an obtuse angle with regard to one surface in the transverse-axis direction of the deposition mask. In the longitudinal-axis direction of the metal plate, the first facing hole and the second facing hole are arranged alternately in a row. In the transverse-axis direction of the metal plate, the first facing hole and the second facing hole are arranged alternately in a row. A first island portion is arranged between two adjacent first facing holes in a first diagonal direction joining the first diameters of the communicating portions connected to the first facing holes. A second island portion is arranged between two adjacent second facing holes in a second diagonal direction joining the first diameters of the communicating portions connected to the second facing holes. A rib is arranged between the first island portion and the second island portion. The deviation in size between the first island portion and the second island portion, which are adjacent to each other, is 30% or less.
Inventors:
KIM NAM HO (KR)
Application Number:
PCT/KR2021/002322
Publication Date:
October 28, 2021
Filing Date:
February 24, 2021
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
C23C14/04
Foreign References:
| KR20200027253A | 2020-03-12 | |||
| US9601343B2 | 2017-03-21 | |||
| KR20060006998A | 2006-01-23 | |||
| KR20190045353A | 2019-05-02 | |||
| KR20120099529A | 2012-09-10 |
Other References:
See also references of EP 4141977A4
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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