Mask device and evaporation method

Abstract

The invention provides a mask device and an evaporation method. The mask device comprises a first mask plate, and the first mask plate comprises a first frame, and a first mask strip and a first blocking strip which are arranged on the first frame side by side; the first mask strip and the first blocking strip are arranged at intervals; the first mask strip comprises a first sub mask strip and a second sub mask strip which are spliced; and a first hollowed-out region is arranged on the first sub mask strip. According to the mask device, the mask strip is divided into the two sub mask strips, netting difficulty is reduced, and preparation of a variable-amplitude mask plate is achieved; and besides, when the size of the mask plate is increased, the situation that the droop amount of the middle region of the mask strip is increased as the mask strip is too wide is avoided, and evaporation precision of the variable-amplitude mask plate is improved.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a mask device and an evaporation method. Background technique [0002] In the production process of display panels, metal masks are required for the evaporation of luminescent materials. With the increasing market demand for large-size and vehicle-mounted displays, it is imminent to achieve high-precision metal mask evaporation for large-size products. [0003] At present, the evaporation of large-size masks has the following problems: manufacturers cannot make corresponding wide masks; mask size increases, resulting in increased sagging in the middle area, increased wrinkles, and reduced screen pass rate; The size of the mask plate increases, and the opening equipment fixture cannot correspond, and the existing equipment cannot be used to complete the opening. SUMMARY OF THE INVENTION [0004] The present invention provides a mask device to solve at least one of...

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Problems solved by technology

[0003] At present, the evaporation of large-size masks has the following problems: manufacturers cannot produce corresponding wide-width masks; the size of masks increases, resulting in increased sagging in the middle area, increased wrinkles, and a decrease in the qualified rate of opening; The size of the mask plate increases, and the jigs of the stretching equipment cannot correspond, and it is impossible to rely on the existing equipment to complete the stretching

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