Frame and mask assembly having the same
US-9953828-B2 · Apr 24, 2018 · US
Method for manufacturing display device using a mask frame
US11316111B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11316111-B2 |
| Application number | US-201916701024-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2019 |
| Priority date | Feb 1, 2019 |
| Publication date | Apr 26, 2022 |
| Grant date | Apr 26, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A mask assembly for manufacturing a display device, the mask assembly includes: a mask frame including a pair of first side portions arranged in a first direction, a pair of second side portions arranged in a second direction intersecting the first direction, and an opening portion defined by the first side portions and the second side portions; a mask sheet arranged on the opening portion of the mask frame, fixed on the mask frame, and including a plurality of openings; and a support member attached to at least one of the first side portions and the second side portions of the mask frame with tensile force applied.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a display device, the method comprising: sensing deformation of a mask frame having a first central opening to receive a mask sheet and a second opening in an outer peripheral portion of the mask frame; correcting the deformation of the mask frame by selectively attaching a support member to the second opening or removing a support member from the second opening depending upon the shape of the mask frame; and arranging a mask assembly including the mask frame in which the deformation has been corrected inside a deposition chamber, and then supplying and depositing a deposition material on a display substrate of the display device by using a deposition source. 2. The method of claim 1 , wherein the step of attaching a support member comprises: arranging and fixing the support member on the mask frame by attaching the support member across the second opening with tensile force applied. 3. The method of claim 1 , wherein the support member comprises a plurality of first and second support sticks, and the method further comprises: arranging the first support sticks and the second support sticks on portions of the mask frame depending on the deformation of the mask frame, the portions of the mask frame being different from each other with respect to a center of the mask frame. 4. The method of claim 3 , wherein the number of the first support sticks and the number of the second support sticks are different from each other. 5. The method of claim 1 , wherein the second opening comprises a groove and the support member crosses the groove in a width direction or lengthwise direction of the groove.
Assignees
Inventors
Classifications
Active-matrix OLED [AMOLED] displays · CPC title
using selective deposition, e.g. using a mask · CPC title
- C23C14/042Primary
using masks · CPC title
- C23C14/24Primary
Vacuum evaporation · CPC title
using masks · CPC title
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Frequently asked questions
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- What does patent US11316111B2 cover?
- A mask assembly for manufacturing a display device, the mask assembly includes: a mask frame including a pair of first side portions arranged in a first direction, a pair of second side portions arranged in a second direction intersecting the first direction, and an opening portion defined by the first side portions and the second side portions; a mask sheet arranged on the opening portion of t…
- Who is the assignee on this patent?
- Samsung Display Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C23C14/042. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 26 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).