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Title:
TRANSMISSIVE SCREEN AND BACK-FACE PROJECTION TYPE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2013213884
Kind Code:
A
Abstract:

To provide a transmissive screen having high in-plane uniformity of brightness, capable of displaying a bright and favorable image and having a high designing property, and a back-face projection type display device having the screen.

A transmissive screen 10 includes: a Fresnel lens layer 22 disposed at an incident side of imaging light and having a refraction type Fresnel lens feature; and a light-controlling layer 32 disposed at a light-exiting side for light and including a light-transmitting part 322 and a light-absorbing part 323; and the screen has a curved feature giving a curved screen surface. The light-transmitting part 322 and the light-absorbing part 323 are alternately arranged along the light-exiting side surface of the light-controlling layer 32. The light-absorbing part 323 has a substantially wedge-like cross-sectional feature; and a unit lens 221 has a lens angle α set in such a manner that when the light exiting from a lens surface 222 enters the light-controlling layer 32, the light enters at an incident angle equal to or larger than the critical angle with respect to the interface between the light-transmitting part 322 and the light-absorbing part 323.


Inventors:
KITAYAMA RYOTA
Application Number:
JP2012083381A
Publication Date:
October 17, 2013
Filing Date:
March 31, 2012
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G03B21/62; G02B3/08; G02B5/00; G03B21/10; G03B21/14
Domestic Patent References:
JP2002139799A2002-05-17
JP2009063849A2009-03-26
JP2011209705A2011-10-20
JP2002139799A2002-05-17
JP2009063849A2009-03-26
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi