A small size mask plate fixing device
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
- Publication Date
- 2019-11-26
Smart Images

Figure 1 
Figure 2 
Figure 3
Abstract
Description
technical field
[0001] The invention relates to the field of organic electroluminescent technology (Organic Light Emitting Diode, OLED), in particular to a small-sized mask fixing device. Background technique
[0002] Organic Light Emitting Diode (OLED) is a new type of display and lighting technology.
[0003] Vacuum evaporation technology is generally used to prepare OLED thin films, that is, organic / metal materials are heated in a vacuum environment (~10-5Pa), the materials are sublimated by heat, and a certain pattern is formed on the surface of the substrate through a mask with a special pattern. Shaped organic\metallic thin films. After continuous deposition and film formation of various materials, an OLED structure with multi-layer thin films can be formed.
[0004] During the process as described above, most of the materials (organic or metal materials) are deposited on the inner wall of the evaporation chamber and the surface of the mask. When the organic or meta...