Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2003.04a
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- Pages.73-77
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- 2003
Development of Direct Surface Forming Process
- Cho, Kwang-Hwan (Department of Mechanical Engineering, Dankook University) ;
- Yoon, Kyung-Hwan (Department of Mechanical Engineering, Dankook University)
- Published : 2003.04.01
Abstract
The backlight unit(BLU) is used as a light source of TFT liquid-crystalline-display (TFT-LCD) module. In this backlight unit, one of important components is the light guide, which is usually made of transparent polymers. Currently the screen-printing method is mainly used for the light guide as a manufacturing process. However, it has limitation to the flexibility of three-dimensional optical design. In the present paper a new alternative manufacturing method for the light guide with low-cost is proposed. This manufacturing method is named as direct surface forming (DSF), which is very similar to the well-known hot embossing except for partial contact between mold and substrate. The results of this new manufacturing method are presented in terms of processing condition, dimensional accuracy, productivity, etc.
Keywords
- Back light unit;
- Direct surface forming(DSF);
- Light guide;
- Thin-film-transistor Liquid-crystalline-display (TFT-LCD)