Carbo nanotubes induced high efficiency plasma backlight panel

• Main Authors: Hui-Chien Ko, 柯惠乾
• Other Authors: Jeff Tsung Hui Tsai
• Format: Others
• Language: en_US
• Online Access: http://ndltd.ncl.edu.tw/handle/mqx7w6

碩士 === 大同大學 === 光電工程研究所 === 95 === We fabricated a carbon nanotubes (CNTs) induced plasma backlight panel (CNTs-PBP). This flat plasma panel has unique properties which are low power consumptions, high luminous efficiency, simple production process and low prime cost. Firstly we used the indium-tin-oxide (ITO) glasses as the substrate of the front and the rear panel. The ITO film is used for the electrodes in the light panel. The phosphor powder which was visible light excited and mixed with the commercial binder (BP-55), then screen printed on the ITO-glass substrates. In this process, we added some CNTs in the phosphor powder. This is the key point about the low breakdown voltage of the plasma generation. After fabricated the panel, we measured the luminance intensity, chromaticity diagram, current and voltage characteristics, emission light spectrum and the Paschen’s behavior of the device. Furthermore we optimized the luminance of the device with different methods such as adding a reflection layer behind the rear panel, mixing helium gas into the argon plasma and driven the prototype panel by pulse voltage. In the conclusion, the device has a good luminance 550 cd/m2(nits) and a low power consumption 1.4 W. And we also attempt this approach in a study-commercial 14-inch AC- PBP which fabricated in Chunghwa Picture Tubes, LTD. (CPT) while the present of the CNTs that increased almost 20% of the luminous efficiency at the commercial luminance intensity standard (10,000 cd/m2) of the backlight panel.