Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate
2007-11-05
2009-10-27
Nelms, David (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
Reexamination Certificate
active
07609336
ABSTRACT:
The present invention provides a liquid crystal display device capable of achieving natural and high-quality color display without reddish color shift, not only when viewed in the normal direction but also when viewed obliquely.A liquid crystal display device1of the present invention includes a light diffuser plate3, a light source2disposed on the back side of the light diffuser plate3, and a liquid crystal panel30disposed on the front side of the light diffuser plate3, wherein the light diffuser plate3is constituted by dispersing light diffusing particles in a transparent material, and the absolute value of a difference Δn in the refractive index between the transparent material and the light diffusing particles and a 50% cumulative particle diameter D50(μm) of the light diffusing particles satisfy a relation 0.01≦Δn×D50≦0.25 or 0.61≦Δn×D50≦0.75.
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Kanemitsu Akiyoshi
Kumasawa Hiroyuki
Yamahara Motohiro
Nelms David
Sughrue & Mion, PLLC
Sumitomo Chemical Company Limited
Vu Phu
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