UV-LIGAプロセスによる導光板の開発 Development of Light-Guide Plate Using UV-LIGA Process
Demands for personal digital assistants (PDA) require them to be of low profile, lightweight, and to have low power consumption. To fulfill these demands, it is necessary to develop a backlight unit that has features of low power consumption, high brightness, and high efficiency. The light source in a backlight unit has a light-guide plate with microreflection dots, which is a very important component. The smaller the microreflection dots and the higher the aspect ratio, the brighter the screen. The result of a simulation revealed that it is possible to improve the brightness of the light-guide plate by forming the shape of a truncated cone with a taper angle range of 68 to 78 degrees. However, by using the existing machining technology, it is difficult to form the microreflection dots into such a shape. Thus, we developed an innovative UV diffraction exposure method to fabricate tapered microstructure. We fabricated a light-guide plate using the UV-LIGA process by the UV diffraction exposure.
- 塑性と加工 = JOURNAL OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY
塑性と加工 = JOURNAL OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY 48(558), 640-644, 2007-07-25
The Japan Society for Technology of Plasticity