Investigation of a 40-in High-Definition Flat CRT

Investigation of a 40-in High-Definition Flat CRT

We are developing a large-size high-definition flat-panel CRT to be applied to HDTV. We investigated the essential technologies :, 1) needle pillar structure to make the glass envelope light; 2) multi-staged deflectors to make the deflection sensitivity high and make the deflection distortion small;...

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Veröffentlicht in:Terebijon Gakkaishi 1990/05/20, Vol.44(5), pp.563-570
Hauptverfasser: Nonomura, Kinzo, Hashiguchi, Jumpei, Yamazaki, Fumio, Hamada, Kiyoshi, Nakatani, Toshifumi, Tsujihara, Susumu, Kataoka, Teruo, Tomii, Kaoru, Kawauchi, Yoshikazu
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container_end_page 570
container_issue 5
container_start_page 563
container_title Terebijon Gakkaishi
container_volume 44
creator Nonomura, Kinzo
Hashiguchi, Jumpei
Yamazaki, Fumio
Hamada, Kiyoshi
Nakatani, Toshifumi
Tsujihara, Susumu
Kataoka, Teruo
Tomii, Kaoru
Kawauchi, Yoshikazu
description We are developing a large-size high-definition flat-panel CRT to be applied to HDTV. We investigated the essential technologies :, 1) needle pillar structure to make the glass envelope light; 2) multi-staged deflectors to make the deflection sensitivity high and make the deflection distortion small; 3) beam current feed-back systems to make the emission characteristics uniform; 4) beam landing control systems to synchronize the timing of the beam landing to that of the modulation signal; and 5) scanning methods for reducing the color difference between the sections. Based on this research, we successfuly developed an experimental panel that is approximately one-eighth the size of a 40″ panel. As a result of this development, we are quite certain that developing a large-size HDTV panel will also be possible.
doi_str_mv 10.3169/itej1978.44.563
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title Investigation of a 40-in High-Definition Flat CRT
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