Practical CNT‐FED structure for high‐luminance character displays |
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Authors: | Junko Yotani Sashiro Uemura Takeshi Nagasako Hiroyuki Kurachi Tomotaka Ezaki Tsuyoshi Maesoba Takehiro Nakao Masaaki Ito Akira Sakurai Hideo Shimoda Hiromu Yamada Yahachi Saito |
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Affiliation: | Noritake Co., Ltd., 728‐23 Tsumura‐cho, Ise‐shi, Mie 516‐1103, Japan |
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Abstract: | Abstract— A high‐luminance CNT‐FED character display using a simple line rib structure was constructed. The display panel had 48 × 480 dots and the subpixel pitch was 1 mm. The greatest benefit of a display using CNT technology is high luminance performance with low‐power consumption. The luminance of the green‐color dot wasca. 10,000 cd/m2 under 1/1 6 duty‐cycle driving at a 6‐kV anode voltage. The high luminance of the display panel can provide good visibility when installed even in outdoor locations, and the power consumption was ca. 4 W at the character displaying module. This, a CNT‐FED for character displays also has potential multifunctionality, which could be battery driven. It should be useful for public displays even under emergency no‐power conditions. In this work, a practical structure and process technologies for making ribs with reasonable cost were developed. The newly introduced 2‐mm‐tall line ribs as spacers were formed by using innovative production processes; i.e., the rib paste was pushed out of a multi‐slit nozzle, and the rib shape was formed by UV‐light irradiation. The developed panel structure and manufacturing processes also had the advantages of size flexibility and high production yield. |
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Keywords: | Field‐emission display carbon nanotubes high luminance low power consumption |
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