Feasibility of a color shutter using ferroelectric liquid crystal polymer panel and a field sequential ultra high-resolution CRT with the color shutter as a color field-switching device was studied. The color shutter consists of ferroelectric liquid crystal polymer panels and color polarizers. First, evaluation indices of the color shutter, such as the color gamut, the average transmittance and the white chromaticity shift, were formulated, and the simulation of evaluation indices was examined, where the spectral transmittance characteristics of the polarizer were changed in steps. It was indicated that there was a tradeoff between the color gamut and the average transmittance of the color shutter, and the shutter configuration that provides 0.096 (63% to NTSC) color gamut and 4.3% average transmittance was selected based on the simulation results. Next, the three-line simultaneous scanning method of the monochrome CRT was improved so that the disturbance due to the raster modulation was eliminated by averaging the distribution of beam luminance apparently. To confirm results of the study, the prototype of 21-inch screen size was produced, and the following display characteristics was obtained: luminance of 71 cd/m2, contrast ratio of 146:1 and color gamut of 0.096 (63% to NTSC) under the standard room lighting environment.
Naoki SHIRAMATSU
Naoko IWASAKI
Masaki YAMAKAWA
Shuji IWATA
Hitoshi KUMA
Takamitsu NAGASE
Narutoshi HAYASHI
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Naoki SHIRAMATSU, Naoko IWASAKI, Masaki YAMAKAWA, Shuji IWATA, Hitoshi KUMA, Takamitsu NAGASE, Narutoshi HAYASHI, "A 21-in. Field Sequential High-Resolution CRT Using Liquid Crystal Color Shutter" in IEICE TRANSACTIONS on Electronics,
vol. E84-C, no. 9, pp. 1247-1255, September 2001, doi: .
Abstract: Feasibility of a color shutter using ferroelectric liquid crystal polymer panel and a field sequential ultra high-resolution CRT with the color shutter as a color field-switching device was studied. The color shutter consists of ferroelectric liquid crystal polymer panels and color polarizers. First, evaluation indices of the color shutter, such as the color gamut, the average transmittance and the white chromaticity shift, were formulated, and the simulation of evaluation indices was examined, where the spectral transmittance characteristics of the polarizer were changed in steps. It was indicated that there was a tradeoff between the color gamut and the average transmittance of the color shutter, and the shutter configuration that provides 0.096 (63% to NTSC) color gamut and 4.3% average transmittance was selected based on the simulation results. Next, the three-line simultaneous scanning method of the monochrome CRT was improved so that the disturbance due to the raster modulation was eliminated by averaging the distribution of beam luminance apparently. To confirm results of the study, the prototype of 21-inch screen size was produced, and the following display characteristics was obtained: luminance of 71 cd/m2, contrast ratio of 146:1 and color gamut of 0.096 (63% to NTSC) under the standard room lighting environment.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e84-c_9_1247/_p
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@ARTICLE{e84-c_9_1247,
author={Naoki SHIRAMATSU, Naoko IWASAKI, Masaki YAMAKAWA, Shuji IWATA, Hitoshi KUMA, Takamitsu NAGASE, Narutoshi HAYASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={A 21-in. Field Sequential High-Resolution CRT Using Liquid Crystal Color Shutter},
year={2001},
volume={E84-C},
number={9},
pages={1247-1255},
abstract={Feasibility of a color shutter using ferroelectric liquid crystal polymer panel and a field sequential ultra high-resolution CRT with the color shutter as a color field-switching device was studied. The color shutter consists of ferroelectric liquid crystal polymer panels and color polarizers. First, evaluation indices of the color shutter, such as the color gamut, the average transmittance and the white chromaticity shift, were formulated, and the simulation of evaluation indices was examined, where the spectral transmittance characteristics of the polarizer were changed in steps. It was indicated that there was a tradeoff between the color gamut and the average transmittance of the color shutter, and the shutter configuration that provides 0.096 (63% to NTSC) color gamut and 4.3% average transmittance was selected based on the simulation results. Next, the three-line simultaneous scanning method of the monochrome CRT was improved so that the disturbance due to the raster modulation was eliminated by averaging the distribution of beam luminance apparently. To confirm results of the study, the prototype of 21-inch screen size was produced, and the following display characteristics was obtained: luminance of 71 cd/m2, contrast ratio of 146:1 and color gamut of 0.096 (63% to NTSC) under the standard room lighting environment.},
keywords={},
doi={},
ISSN={},
month={September},}
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TY - JOUR
TI - A 21-in. Field Sequential High-Resolution CRT Using Liquid Crystal Color Shutter
T2 - IEICE TRANSACTIONS on Electronics
SP - 1247
EP - 1255
AU - Naoki SHIRAMATSU
AU - Naoko IWASAKI
AU - Masaki YAMAKAWA
AU - Shuji IWATA
AU - Hitoshi KUMA
AU - Takamitsu NAGASE
AU - Narutoshi HAYASHI
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E84-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2001
AB - Feasibility of a color shutter using ferroelectric liquid crystal polymer panel and a field sequential ultra high-resolution CRT with the color shutter as a color field-switching device was studied. The color shutter consists of ferroelectric liquid crystal polymer panels and color polarizers. First, evaluation indices of the color shutter, such as the color gamut, the average transmittance and the white chromaticity shift, were formulated, and the simulation of evaluation indices was examined, where the spectral transmittance characteristics of the polarizer were changed in steps. It was indicated that there was a tradeoff between the color gamut and the average transmittance of the color shutter, and the shutter configuration that provides 0.096 (63% to NTSC) color gamut and 4.3% average transmittance was selected based on the simulation results. Next, the three-line simultaneous scanning method of the monochrome CRT was improved so that the disturbance due to the raster modulation was eliminated by averaging the distribution of beam luminance apparently. To confirm results of the study, the prototype of 21-inch screen size was produced, and the following display characteristics was obtained: luminance of 71 cd/m2, contrast ratio of 146:1 and color gamut of 0.096 (63% to NTSC) under the standard room lighting environment.
ER -