反射型カラーLCDの表示輝度を向上させる指向性反射膜を開発した。白色反射ゲインは3.5であり，色再現範囲は透過型液晶用吸収型カラーフィルタより広かった。また，指向性角以内でカラーシフトは殆ど小さいことが解った。
RGB directive color reflectors were implemented for bright reflective color LCDs. The reflection gain at a white display state was suggested to be 3.5 times as large as the white standard. The color gamut was found to be as wide as the NTSC standard. There observed little color shifts within the directive angle.
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