Title:
BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY DEVICE AND WAVELENGTH CONVERSION MEMBER
Document Type and Number:
WIPO Patent Application WO/2016/052626
Kind Code:
A1
Abstract:
One embodiment of the present invention relates to a backlight unit which comprises a light source that emits light having a luminescence center wavelength of λ nm and a wavelength conversion member that is positioned on the optical path of the light emitted from the light source, and wherein: the wavelength conversion member comprises a wavelength conversion layer containing a phosphor that is excited by excitation light and produces fluorescence and a light diffusion layer that contains particles having a particle size of 0.1 μm or more in a matrix; the average refractive index (n1) of the wavelength conversion layer and the average refractive index (n2) of the matrix of the light diffusion layer satisfy a relationship n1 < n2; and the absorptivity of the light diffusion layer at a wavelength of λ nm is 8.0% or less. Another embodiment of the present invention relates to a liquid crystal display device or a wavelength conversion member.
Inventors:
YONEMOTO TAKASHI (JP)
IWASE EIJIRO (JP)
SATO KOICHI (JP)
IWASE EIJIRO (JP)
SATO KOICHI (JP)
Application Number:
PCT/JP2015/077755
Publication Date:
April 07, 2016
Filing Date:
September 30, 2015
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
F21S2/00; B32B7/02; H01L33/50
Domestic Patent References:
| WO2015025950A1 | 2015-02-26 |
Foreign References:
| JP2013544018A | 2013-12-09 |
Attorney, Agent or Firm:
SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)
Patent business corporation patent firm Sykes (JP)
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