US Patent 11396030 Mask frame assembly for depositing thin film
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Patent Inventor Names
Jongdae Lee0
Sangheon Jeon0
Yalim Kim0
Youngeun Ryu0
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Patent Number
113960300
Date of Patent
July 26, 2022
0Patent Application Number
165337090
Date Filed
August 6, 2019
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US Patent 11396030 Mask frame assembly for depositing thin film
Article
A mask frame assembly includes: a mask frame; at least one mask sheet arranged on the mask frame; a plurality of first support sticks extending in a first direction; and a plurality of second support sticks extending in a second direction, wherein a mask frame transformation index is within a range from about −1000 to about +1000 based on mask frame transformation index=Σ (tensile force of first support sticks/tensile rate of first support sticks)−Σ (tensile force of second support sticks/tensile rate of second support sticks), where tensile force of respective first or second support stick is given by thickness (T)×width (W)×elastic coefficient (E)×tensile rate (δ/L
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Patent applicant
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Patent number
11396030
Date of patent
July 26, 2022
Patent application number
16533709
Date Filed
August 6, 2019
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