Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/065490
Kind Code:
A1
Abstract:
Disclosed is a liquid crystal display device that has high contrast and excellent image quality evenly across the entire viewing angle and minimizes small display irregularities such as moiré and glare. Said liquid crystal display device is provided with: liquid crystal cells; polarizing plates disposed on both sides of the liquid crystal cells; optical diffusion elements provided on the outside of the viewing-side polarizing plate; and a backlight unit provided on the outside of the polarizing plate on the side opposite the viewing side. The backlight unit is a parallel-light light source device that shines collimated light, with a FWHM viewing angle between 3° and 35°, towards the liquid crystal cells. The ratio Fw(BL)/Fw(FD) between the FWHM diffusion angle Fw(FD) of the optical diffusion elements and the FWHM viewing angle Fw(BL) of the collimated light is 0.5 or less.

Inventors:
NISHIMURA, Akinori (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
西村 明憲 (〒80 大阪府茨木市下穂積1丁目1番2号 日東電工株式会社内 Osaka, 〒5678680, JP)
TAKEMOTO, Hiroyuki (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
武本 博之 (〒80 大阪府茨木市下穂積1丁目1番2号 日東電工株式会社内 Osaka, 〒5678680, JP)
FUCHIDA, Takehito (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
Application Number:
JP2010/071143
Publication Date:
June 03, 2011
Filing Date:
November 26, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NITTO DENKO CORPORATION (1-1-2, Shimohozumi Ibaraki-sh, Osaka 80, 〒5678680, JP)
日東電工株式会社 (〒80 大阪府茨木市下穂積1丁目1番2号 Osaka, 〒5678680, JP)
NISHIMURA, Akinori (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
西村 明憲 (〒80 大阪府茨木市下穂積1丁目1番2号 日東電工株式会社内 Osaka, 〒5678680, JP)
TAKEMOTO, Hiroyuki (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
武本 博之 (〒80 大阪府茨木市下穂積1丁目1番2号 日東電工株式会社内 Osaka, 〒5678680, JP)
International Classes:
G02F1/1335; G02F1/13357
Domestic Patent References:
2001-05-25
Foreign References:
JP2001215501A2001-08-10
JP2006251352A2006-09-21
JPH11142819A1999-05-28
JP2008191494A2008-08-21
JP2007241191A2007-09-20
JP2007047409A2007-02-22
JP2008216315A2008-09-18
JP2002023170A2002-01-23
JP2008197652A2008-08-28
JP2001343529A2001-12-14
JP2008262012A2008-10-30
JP3442247B22003-09-02
JP2007279424A2007-10-25
JPH06130255A1994-05-13
JPH01126627A1989-05-18
Other References:
IEEJ JOURNAL vol. 125, no. 9, 2005,
See also references of EP 2508939A1
Attorney, Agent or Firm:
MOMII, Takafumi (7th Floor, Chiyoda Building Bekkan 6-1-2, Nishitemma, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
Download PDF: