发明名称 |
Liquid crystal display apparatus |
摘要 |
A liquid crystal display apparatus according to an embodiment of the invention includes: a liquid crystal cell; polarizing plates placed on both sides of the liquid crystal cell; a light diffusing element provided outside of the polarizing plate on a viewer side; and a backlight unit provided outside of the polarizing plate on an opposite side of the viewer side. The backlight unit includes a collimated light source device that emits collimated light having a brightness half-value angle of 3° to 35° toward the liquid crystal cell, and a ratio Fw(BL)/Fw(FD) between a diffused light half-value angle Fw(FD) of the light diffusing element and the brightness half-value angle Fw(BL) of the collimated light is 0.5 or less. |
申请公布号 |
US8953118(B2) |
申请公布日期 |
2015.02.10 |
申请号 |
US201013512673 |
申请日期 |
2010.11.26 |
申请人 |
Nitto Denko Corporation |
发明人 |
Nishimura Akinori;Takemoto Hiroyuki;Fuchida Takehito;Miyatake Minoru;Shutou Shunsuke |
分类号 |
G02F1/1335 |
主分类号 |
G02F1/1335 |
代理机构 |
Westerman, Hattori, Daniels & Adrian, LLP |
代理人 |
Westerman, Hattori, Daniels & Adrian, LLP |
主权项 |
1. A liquid crystal display apparatus, comprising:
a liquid crystal cell; polarizing plates placed on both sides of the liquid crystal cell; a light diffusing element provided outside of the polarizing plate on a viewer side; and a backlight unit provided outside of the polarizing plate on an opposite side of the viewer side, wherein the backlight unit comprises a collimated light source device that emits collimated light having a brightness half-value angle of 3° to 35° toward the liquid crystal cell, wherein a ratio Fw(BL)/Fw(FD) between a diffused light half-value angle Fw(FD) of the light diffusing element and the brightness half-value angle Fw(BL) of the collimated light is 0.5 or less, and wherein the light diffusing element comprises light diffusible fine particles. |
地址 |
Ibaraki-shi JP |