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Title:
TOTAL REFLECTION PRISM SHEET, MANUFACTURING METHOD OF THE SAME, AND REAR PROJECTION TYPE DISPLAY APPARATUS
Document Type and Number:
Japanese Patent JP2006171486
Kind Code:
A
Abstract:

To provide a total reflection prism sheet, constituted so that the influence of external light and stray light is suppressed, even if the image light is made incident at a large incident angle, and a proper images can be observed, and the sheet can be easily manufactured, to provide a method for manufacturing the total reflection prism sheet, and to provide a rear projection type display apparatus.

A unit prism shape 12 for total reflection of the incident light is arranged on the incident side, a light-absorbing part 13 is formed on the inner layer surface other than a position, where the totally reflected light passes, and a lenticular lens shape 15 is formed closer to an observation side than the light-absorbing part 13, and then, is made into a single prism sheet 10.


Inventors:
WATANABE OSAMU
Application Number:
JP2004365362A
Publication Date:
June 29, 2006
Filing Date:
December 17, 2004
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G03B21/62; G02B5/02; G02B5/04; G03B21/625
Attorney, Agent or Firm:
Hisao Kamada



 
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