| The organic light emitting display (OLED) is considered to be a thin film transistor liquid crystal display following (TFT-LCD) flat panel display after the next. Since water vapor and oxygen in the air and other components of a great influence on the life of OLED, packaging production line equipment is the core of OLED production line equipment, the development of production OLED display panel is made of key equipment. On the other hand, PLC since been developed in the semiconductor, computer and communications technology driven, widely used in the field of industrial automation control equipment, PLC software designers more and more. Even with a company with PLC programming software, with a programmer, different times may have different style of programming, which may lead to uneven quality of the PLC program, style variety, resulting in the latter part of the process of program maintenance difficult.In response to these problems, the main research topics of the following two aspects:(1) OLED encapsulation equipment and technology. By using UV cleaning equipment, drying sheet affixed equipment, UV coating equipment, heating degassing equipment, vacuum lamination equipment, UV curing equipment to achieve the OLED rear input, UV dry cleaning, paste drying flakes coated UV glue, heating in addition to gas, the substrate lamination, UV curing, finished output package process to ensure the quality of packaging and packaging accuracy.(2) Equipment for OLED encapsulation PLC program framework programming method. PLC software design based on the entire production process, technical requirements and equipment on the basis of full understanding of the structure, based on personal experience of ten years of PLC programming, summarize, summarize our automated equipment control laws. Offered to" Library" program for structural framework programming methods, the preparation of a common library routines. The method was successfully applied to the OLED packaging line control system.OLED encapsulation system has been put into use by the debugger for some time, practice shows that the system is stable, reliable and secure, fully meet the actual requirements. |
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