| 摘要 |
A mask apparatus for evaporation of an organic material of an organic light emitting diode display comprises a mask frame (2), cover plates (4) mounted on two opposite sides of the mask frame (2) and facing an evaporation surface side, and mask plates (6) adhered to the cover plates (4), the mask frame (2) being in a rectangle shape, a rectangular accommodation mouth (20) being provided in the middle, the size of the accommodation mouth (20) being adjusted by adjusting a mounting position of the cover plate (4), and multiple openings being evenly distributed on the mask plate (6). The mass distribution of the mask plate (6) is even, thereby avoiding pixel position offset caused by inconsistent attraction sequence of different-mass blocks when the mask plate (6) is attracted through a magnetic force. The mask apparatus prevents an organic material from adhering to a non-evaporation area of a substrate, reduces the production cost of the organic light emitting diode display, improves the production efficiency, and further facilitates the development of the evaporation technology of a large-size organic light emitting diode display. |
