Title:
LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/104310
Kind Code:
A1
Abstract:
A liquid crystal display device 10 is provided with a backlight unit 12 and a composite polarizing plate 28. The backlight unit comprises a light source 17, a light guiding plate 19 which includes light-gathering parts 43, 44 that are formed on a light incidence surface 19c, a light emitting surface 19a, a light emitting surface 19a and/or a back surface 19b and gather emitted light from the light emitting surface 19a to the front in a light-gathering direction being a direction orthogonal to the direction of a light axis L of the light source 17, and an optical sheet 20 which is disposed so as to cover the light emitting surface 19a and gathers the emitted light from the light emitting surface 19a to the front in the light-gathering direction while the emitted light is transmitted therethrough. The composite polarizing plate comprises a selective reflection sheet 27 which includes a first transmission axis and a reflection axis orthogonal to the first transmission axis, and a polarizing plate 26 which includes a second transmission axis and is laminated on the selective reflection sheet 27 such that the second transmission axis overlaps the first transmission axis in parallel with each other, the composite polarizing plate being laminated on the backlight unit 12 such that the first transmission axis and the second transmission axis 28 go along a non-light-gathering direction orthogonal to the light-gathering direction.
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Inventors:
IMAOKU TAKAO
HIRAYAMA YOSHINOBU
YAGI SHUGO
HIRAYAMA YOSHINOBU
YAGI SHUGO
Application Number:
PCT/JP2015/085313
Publication Date:
June 30, 2016
Filing Date:
December 17, 2015
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G02F1/13357; F21S2/00; F21V5/00; G02F1/1335; F21Y115/10
Foreign References:
| JP2013068834A | 2013-04-18 | |||
| JP2008233189A | 2008-10-02 | |||
| JP2010043158A | 2010-02-25 | |||
| JP2010122386A | 2010-06-03 | |||
| JP2004069879A | 2004-03-04 | |||
| JP2012221920A | 2012-11-12 | |||
| JP2013254592A | 2013-12-19 |
Attorney, Agent or Firm:
AKATSUKI UNION PATENT FIRM (JP)
Patent business corporation dawn joint patent firm (JP)
Patent business corporation dawn joint patent firm (JP)
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