Mask assembly for deposition

Patent metadata

Field	Value
Publication number	US-9394600-B2
Application number	US-201414227435-A
Country	US
Kind code	B2
Filing date	Mar 27, 2014
Priority date	Jun 19, 2013
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A deposition mask assembly includes: a mask in which a deposition pattern is formed and a mask frame fixed to an edge of the mask, an opening being formed at a center of the mask frame. A first surface of the edge of the mask and a first surface of the mask frame adjacent to the opening which face each other are welded to each other.

First claim

What is claimed is:

1. A deposition mask assembly, comprising:
a mask in which a deposition pattern is formed;
a mask frame fixing an edge of the mask, wherein the mask frame includes a first surface, a second surface downwardly extending from the first surface, and a third surface facing the second surface;
an opening being formed at a center of the mask frame;
a plurality of welding holes formed to extend through the first surface of the mask frame; and
a welding rod insertion groove configured to accommodate a welding rod formed between the second surface and the third surface of the mask frame,
wherein the welding rod insertion groove is connected to at least one of the welding holes, and the welding rod insertion groove is opened in the opposite direction of the at least one welding hole,
wherein a first surface of the edge of the mask and the first surface of the mask frame adjacent to the opening which face each other are welded to each other.

2. The deposition mask assembly of claim 1 , wherein the welding holes are formed along a circumference of the opening.

3. The deposition mask assembly of claim 2 , wherein the opening has a quadrangular shape.

4. The deposition mask assembly of claim 1 , wherein the second surface forms a closed curved line along the circumference of the opening.

5. The deposition mask assembly of claim 1 , wherein the third surface is formed outside the second surface when viewed in a direction away from the opening.

Assignees

• Samsung Display Co Ltd

Inventors

• Han Jeong-Won

Classifications

• C23C14/042 Primary

  using masks · CPC title

• C23C16/042

  using masks · CPC title

• B05C21/005

  Masking devices (stencils B05C17/06; masking devices for which the means for applying liquids or other fluent material is spraying or is not important B05B12/20) · CPC title

• H05B33/10 Primary

  Apparatus or processes specially adapted to the manufacture of electroluminescent light sources · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title