| 摘要 |
A mask assembly is provided to extend an exchange period of a mask assembly by compensating a mask which is deformed by a tension control unit. A mask assembly includes a mask(110), an inner frame(105), an outer frame(200), a plurality of tension control units(300), and an elastic unit. The inner frame(105) is bonded to a mask. The outer frame(200) wraps the inner frame(105) to be apart from an outer circumference plane of the inner frame(105). The plurality of tension control units(300) connect the inner frame(105) to the outer frame(200). The tension control units(300) include a bolt. The tension control units(300) include the elastic unit which is installed between the inner frame(105) and the outer frame(200). The elastic unit is a coil spring which is inserted into the bolt. |
