Edge-Light Backlight Unit Using Optically Patterned Film with Plural Light-Emitting Diodes Placed on Side as Light Source
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概要
- 論文の詳細を見る
In an edge-light backlight unit using an optically patterned film (OPF backlight unit) with plural light-emitting diodes (LEDs) placed on the side as a light source, dark areas are easily generated between LEDs, because the OPF backlight unit mainly uses the total reflection induced by optical patterns formed on the OPF. Such dark areas were eliminated by narrowing the interval between optical patterns between LEDs and widening it near LEDs. By adjusting the interval between optical patterns across the entire area additionally, a luminance distribution in a radiation plane suitable for liquid crystal displays (LCDs) was realized. Moreover, viewing-angle-dependent luminance distribution can be narrowed by adjusting the shape of the lens-shaped optical pattern. Thus, the OPF backlight unit using plural LEDs was shown to be suitable for small-area LCDs.
- 2007-10-25
著者
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Onishi Ikuo
Kuraray Co. Ltd.
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Fujisawa Katsuya
Kuraray Co. Ltd.
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Fujiwara Yasufumi
Course Of Materials Science And Engineering Graduate School Of Engineering Osaka University
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Fujiwara Yasufumi
Course of Materials Science and Engineering, Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-9871, Japan
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Fujisawa Katsuya
Kuraray Co., Ltd., 41 Miyukigaoka, Tsukuba, Ibaraki 305-0841, Japan
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Onishi Ikuo
Kuraray Co., Ltd., 41 Miyukigaoka, Tsukuba, Ibaraki 305-0841, Japan
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