Title:
A POLARIZING BACKLIGHT UNIT, METHOD OF MANUFACTURING THE SAME AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2019/019888
Kind Code:
A1
Abstract:
A polarizing backlight unit, a method of manufacturing the same, and a liquid crystal display device using the same. The backlight unit comprises: a light source (100); a polarizing lightguide (200) configured with a light incident surface (201) and a light exiting surface, wherein unpolarized light from the light source (100) enters the polarizing lightguide (200) through the light incident surface (201), and exits from the light exiting surface in the form of polarized light; a light propagation correction layer (300) placed over the polarizing lightguide (200) and comprised of optically isotropic materials; a low-refractive-index layer (400) that is sandwiched between the polarizing lightguide(200) and the light propagation correction layer (300). Backlight units emit polarized light with controlled illumination cone angles, and liquid crystal display devices employing the backlight units show increased brightness in desired viewing directions.
Inventors:
XUE JIUZHI (US)
ZHAO HUI (CN)
ZHANG HONGWEI (CN)
WANG DANNI (CN)
DING YUMING (CN)
YOU SHIZHI (CN)
YU TIANSHI (CN)
ZHAO HUI (CN)
ZHANG HONGWEI (CN)
WANG DANNI (CN)
DING YUMING (CN)
YOU SHIZHI (CN)
YU TIANSHI (CN)
Application Number:
PCT/CN2018/094520
Publication Date:
January 31, 2019
Filing Date:
July 04, 2018
Export Citation:
Assignee:
SMART LIQUID CRYSTAL TECH CO LTD (CN)
International Classes:
G02F1/13357; G02B6/00
Foreign References:
| KR20070028827A | 2007-03-13 | |||
| CN104316990A | 2015-01-28 | |||
| CN1166209A | 1997-11-26 | |||
| CN1558999A | 2004-12-29 | |||
| CN1735768A | 2006-02-15 | |||
| JP2001049008A | 2001-02-20 |
Attorney, Agent or Firm:
BEIJING ARETE INTELLECTUAL PROPERTY AGENCY (CN)
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