US 7,545,460 B2
Liquid crystal display, optical sheet manufacturing method, and optical sheet
Mitsuo Arima, Miyagi (Japan); Jun Shimizu, Miyagi (Japan); Kei Obata, Miyagi (Japan); Eiji Oota, Miyagi (Japan); Toru Abiko, Miyagi (Japan); Yasuyuki Kudo, Miyagi (Japan); Masato Ishigaki, Miyagi (Japan); and Mitsunari Hoshi, Miyagi (Japan)
Assigned to Sony Corporation, Tokyo (Japan)
Appl. No. 11/659,010
PCT Filed Apr. 05, 2006, PCT No. PCT/JP2006/307227
§ 371(c)(1), (2), (4) Date Dec. 10, 2007,
PCT Pub. No. WO2006/129418, PCT Pub. Date Dec. 07, 2006.
Prior Publication US 2008/0316392 A1, Dec. 25, 2008
Int. Cl. G02F 1/1335 (2006.01); F21V 7/04 (2006.01)
U.S. Cl. 349—64  [349/61; 349/62; 362/606; 362/607] 25 Claims
OG exemplary drawing
 
1. A liquid crystal display comprising:
a liquid crystal display panel;
a light source arranged on a back surface side of the liquid crystal display panel;
an optical sheet with a light-condensing property arranged between the liquid crystal display panel and the light source, the optical sheet having a number of projections arranged continuously on a principal surface of the optical sheet; and
a diffuser sheet arranged between the liquid crystal display panel and the optical sheet,
wherein when a width of the projections of the optical sheet is P [μm], a haze value of the diffuser sheet is H [%], a total light transmittance of the diffuser sheet is Tt [%], and a pixel pitch of the liquid crystal display panel is Pp [μm], the following relationship is satisfied:
(H/Tt)·(Pp/P)≧1.6,
320 μm≤Pp, and
110 μm≤P.