Title:
OPTICAL WAVELENGTH CONVERSION SHEET, BACKLIGHT DEVICE INCLUDING THE SAME, IMAGE DISPLAY DEVICE, AND MANUFACTURING METHOD OF OPTICAL WAVELENGTH CONVERSION SHEET
Document Type and Number:
Japanese Patent JP2017120358
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical wavelength conversion sheet that can suppress a dot-like luminance defect while suppressing the deterioration in quantum dots and that can reduce its thickness and manufacturing cost, a backlight device, an image display device, and a manufacturing method of such an optical wavelength conversion sheet.SOLUTION: According to one aspect of the present invention, there is provided an optical wavelength conversion sheet 10 comprising an optical wavelength conversion layer 11 which contains a binder resin 12 and quantum dots 15 dispersed in the binder resin 12 and which has a function to suppress the deterioration in the quantum dots. The water vapor permeability at 40°C and relative humidity of 90% of the optical wavelength conversion sheet 10 is 0.1 g/(m24h) or more and/or the oxygen permeability at 23°C and relative humidity of 90% of the optical wavelength conversion sheet 10 is 0.1 cm/(m24h atm) or more.SELECTED DRAWING: Figure 1
Inventors:
FUJITA KENJI
NAKAGAWA HIROKI
NAKAGAWA HIROKI
Application Number:
JP2016036884A
Publication Date:
July 06, 2017
Filing Date:
February 29, 2016
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G02B5/20; B32B27/00; B32B27/20; F21S2/00; G02F1/13357
Domestic Patent References:
| JP2014508818A | 2014-04-10 | |||
| JP2015121702A | 2015-07-02 | |||
| JP2010170961A | 2010-08-05 | |||
| JP2012509604A | 2012-04-19 | |||
| JP2012103689A | 2012-05-31 | |||
| JP2008287072A | 2008-11-27 | |||
| JP2012514071A | 2012-06-21 |
Foreign References:
| WO2015138174A1 | 2015-09-17 | |||
| WO2016167927A1 | 2016-10-20 | |||
| WO2014208456A1 | 2014-12-31 | |||
| WO2015141226A1 | 2015-09-24 |
Attorney, Agent or Firm:
Noritaka Yokota
Enoki Yasutaka
Omori Miko
Enoki Yasutaka
Omori Miko