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2013•SID Symposium Digest of Technical PapersRequires access

59.1: A Backlight System with a Phosphor Sheet Providing both Wider Color Gamut and Higher Efficiency

Yasushi Ito, Tomomitsu Hori, Hirofumi Tani, Yoshifumi Ueno, Tsuneo Kusunoki, Hiroshi Nomura, Hirofumi Kondo

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Abstract

Abstract A phosphor sheet in which green‐emitting thiogallate phosphor and red‐emitting sulfide phosphor are contained was developed. The LCD using it and blue LEDs can realize wider color gamut. Employing blue LEDs with spherical encapsulates in it increases light extraction of them and can provide the backlight with higher efficiency as well as wider color gamut.

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What this paper is about

Abstract A phosphor sheet in which green‐emitting thiogallate phosphor and red‐emitting sulfide phosphor are contained was developed. The LCD using it and blue LEDs can realize wider color gamut. Employing blue LEDs with spherical encapsulates in it increases light extraction of them and can provide the backlight with higher efficiency as well as wider color gamut.

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Available abstract

Abstract A phosphor sheet in which green‐emitting thiogallate phosphor and red‐emitting sulfide phosphor are contained was developed. The LCD using it and blue LEDs can realize wider color gamut. Employing blue LEDs with spherical encapsulates in it increases light extraction of them and can provide the backlight with higher efficiency as well as wider color gamut.

Key concepts: Gamut, Backlight, Phosphor, Liquid-crystal display, Light-emitting diode, Materials science, Optoelectronics, Optics

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