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We have developed the light-source device which emits primary color of super-high luminance and fast switching, the device will be used for the light-source of a projector which consists of liquid crystal display (LCD). In order to perform super-high luminance, we must consider that very high anode voltage of 30 kV and the emission current of 500-1000 μA will be required. As a result, the improved structure of electrode system, X-ray shield and cooling system were installed in the developed light-source device.In this paper, we proposed the above mentioned device structure, and the cathode of carbon nanotube (CNT) was the most suitable for the electron emitter. A special CNT that is called nanografiber (NGF) was selected among CNT materials, and the cathode demonstrated that high current density was obtained and the enough electron emission was kept for a long time against ion bombardment. A super-high green luminance of 1 ×106 cd/m2 was achieved by this light-source device.

Molecular Electoronics. Super-High Luminance Light-Source Device with Carbon Nanotube Emitter.