Title:
IMAGE DISPLAY DEVICE, IMAGE DISPLAY MEMBER, AND OPTICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2020/080197
Kind Code:
A1
Abstract:
According to the present invention, viewing angle characteristics are improved as compared with those of the related art, and the contrast of a display screen is sufficiently ensured even when the display screen is viewed from an oblique direction. An image display device 1 is provided with: a liquid crystal layer 8 between first and second substrates 7, 12; a first linear polarizing plate 6 disposed on a side of the first substrate 7; and a second linear polarizing plate 24 disposed on a side of the second substrate 12. A first quarter-wavelength phase difference layer 9 is provided between the liquid crystal layer 8 and the second substrate 12, and a second quarter-wavelength phase difference layer 21 is provided between the second substrate 12 and the second linear polarizing plate 24. A positive C plate 10 is provided between the first and second quarter-wavelength phase difference layers 9 and 21. First and second compensation layers 22 and 23 are provided between the second linear polarizing plate 24 and the second quarter-wavelength phase difference layer 21.
Inventors:
NAKAZAWA SHINSUKE (JP)
TODA TAKESHI (JP)
KAGA YASUMASA (JP)
TODA TAKESHI (JP)
KAGA YASUMASA (JP)
Application Number:
PCT/JP2019/039668
Publication Date:
April 23, 2020
Filing Date:
October 08, 2019
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G02F1/13363; G02B5/30
Domestic Patent References:
| WO2017179493A1 | 2017-10-19 |
Foreign References:
| JP2002055342A | 2002-02-20 | |||
| JP2006208531A | 2006-08-10 | |||
| US20090161044A1 | 2009-06-25 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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