Title:
VIDEO SOURCE UNIT AND DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2018112618
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a video source unit capable of preventing a liquid crystal panel and an optical sheet from being peeled off even under a high temperature environment as well as preventing occurrence of unevenness in a projected image.SOLUTION: A video source unit includes: a liquid crystal panel (15) having a lower polarizing plate (14), an upper polarizing plate (13) and a liquid crystal layer (12) arranged between the lower polarizing plate and the upper polarizing plate; and an optical sheet (30) arranged at a lower polarizing plate side. The optical sheet includes a base material layer (31), an optical functional layer (32) and an adhesive layer (35). The adhesive layer is formed of an adhesive agent having a storage elastic modulus of 0.80×10-1.04×10Pa at 80°C and adhesive force of 18.5 N/25 mm or more against glass. The liquid crystal panel and the optical sheet are bonded by the adhesive layer.SELECTED DRAWING: Figure 1
Inventors:
SATO MASASHI
Application Number:
JP2017001889A
Publication Date:
July 19, 2018
Filing Date:
January 10, 2017
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G02B5/30; F21S2/00; G02B5/00; G02F1/13357; G09F9/00
Domestic Patent References:
| JP2016191947A | 2016-11-10 | |||
| JP2014152319A | 2014-08-25 | |||
| JP2012201877A | 2012-10-22 | |||
| JP2005345990A | 2005-12-15 | |||
| JP2012068474A | 2012-04-05 | |||
| JP2016033663A | 2016-03-10 | |||
| JP2016164214A | 2016-09-08 | |||
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| JP2016066089A | 2016-04-28 |
Foreign References:
| US20140161995A1 | 2014-06-12 | |||
| KR20090110655A | 2009-10-22 |
Attorney, Agent or Firm:
Noriyuki Yamamoto
Koji Yamamoto
Koji Yamamoto