Title:
反射シート及びこれを用いたバックライトユニット
Document Type and Number:
Japanese Patent JP4766805
Kind Code:
B2
Abstract:
PURPOSE: To provide a reflecting sheet capable of preventing secular deterioration such as yellowing and a back light unit capable of increasing a brightness by using the reflecting sheet and capable of preventing the secular deterioration of quality. CONSTITUTION: This reflecting sheet for back light unit capable of reducing the diffusion of light beam comprises a white synthetic resin base material sheet layer 2 and an ultraviolet absorbing layer 3 stacked on the front surface of the base material sheet layer 2. The ultraviolet absorbing layer 3 comprises a base material polymer 4 containing ultraviolet absorbing agent or a base material polymer 4 having ultraviolet absorbing groups connected to molecular chains. The ultraviolet absorbing layer 3 may be formed of a base material polymer 4 containing ultraviolet stabilizing agent or a base material polymer 4 having ultraviolet stabilizing groups in the molecular chains.
Inventors:
Nakano Shoji
Application Number:
JP2001286897A
Publication Date:
September 07, 2011
Filing Date:
September 20, 2001
Export Citation:
Assignee:
Keiwa Co., Ltd.
International Classes:
F21V7/00; G02B5/02; F21S2/00; F21V8/00; G02B1/04; G02B5/08; G02F1/1335; G02F1/13357; G09F9/00; G09F9/35; F21Y103/00
Domestic Patent References:
| JP2001166295A | ||||
| JP9207437A | ||||
| JP11149816A | ||||
| JP2001228313A | ||||
| JP9063329A | ||||
| JP2000344875A | ||||
| JP7198912A | ||||
| JP2001023425A | ||||
| JP7161216A | ||||
| JP7179046A |
Attorney, Agent or Firm:
Hajime Amano