Title:
METHOD FOR MANUFACTURING OPTICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2011/145384
Kind Code:
A1
Abstract:
Disclosed is a method for manufacturing optical members which is intended to make the optical member resistant to variations in chromaticity caused with use. The method is applicable to manufacturing of a prism sheet (23c) which is an optical member (23). The prism sheet (23c) is used in a backlighting device (12) for supplying light to a liquid crystal panel (11) and transmits light from an LED (24) which is a light source included in the backlighting device (12). The method includes a chromaticity stabilizing step of illuminating the prism sheet (23c) with a beam of light emitted from a chromaticity stabilizing LED (32) in order to stabilize the chromaticity of light to be transmitted from the prism sheet (23c), the LED (32) being a chromaticity stabilizing light source with the dominant emission wavelength falling within a blue wavelength band.
More Like This:
Inventors:
NAMEKATA YUUKI
Application Number:
PCT/JP2011/055592
Publication Date:
November 24, 2011
Filing Date:
March 10, 2011
Export Citation:
Assignee:
SHARP KK (JP)
NAMEKATA YUUKI
NAMEKATA YUUKI
International Classes:
G02B5/02; F21S2/00; F21V5/00; G02B1/04; G02F1/13357; F21Y101/02
Foreign References:
| JP2007155939A | 2007-06-21 | |||
| JP2009104844A | 2009-05-14 | |||
| JP2010044219A | 2010-02-25 | |||
| JP2010044219A | 2010-02-25 |
Other References:
See also references of EP 2573596A4
Attorney, Agent or Firm:
AKATSUKI UNION PATENT FIRM (JP)
Patent business corporation dawn joint patent firm (JP)
Patent business corporation dawn joint patent firm (JP)
Download PDF:
Claims: