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Title:
IMAGE DISPLAY UNIT AND GAME MACHINE
Document Type and Number:
WIPO Patent Application WO/2004/081641
Kind Code:
A1
Abstract:
A 3-D image display unit and a pachinko game machine for permitting 3-D viewing by observers who do not wear special glasses. The 3-D image display unit, which offers to observers clear and bright images with fine pixel pitches, comprises a liquid crystal display panel (804), a light source (801) for emitting a first light that is a specific polarized light and a second light having a polarization axis perpendicular to that of the first light, a Fresnel lens (812), a fine phase difference plate (802) provided, alternately and repeatedly, thereon with first areas (802a) transmitting the first light and second areas (802b) transmitting the second light, and a first polarizing plate (803) and a second polarizing plate (805). Red, green and blue lights are sequentially emitted from the light source (801), and images corresponding to respective colors are sequentially displayed on a liquid crystal display panel (804) in response to timings at which lights of respective colors are emitted from the light source (801).

Inventors:
IOKI SADAO (JP)
ARISAWA SANJI (JP)
TOMITA SEIJIRO (JP)
Application Number:
PCT/JP2004/002042
Publication Date:
September 23, 2004
Filing Date:
February 20, 2004
Export Citation:
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Assignee:
SOPHIA INC (JP)
ARISAWA SEISAKUSHO KK (JP)
AMITA TECHNOLOGIES INC (JP)
IOKI SADAO (JP)
ARISAWA SANJI (JP)
TOMITA SEIJIRO (JP)
International Classes:
G02B27/22; G02F1/13; A63F7/02; G02F1/133; G02F1/1335; G03B35/18; G09G3/20; G09G3/34; G09G3/36; H04N13/00; (IPC1-7): G02F1/133; G02F1/13
Domestic Patent References:
WO1994006249A11994-03-17
WO2001059509A12001-08-16
Foreign References:
JPH1063199A1998-03-06
JP2003044016A2003-02-14
JPH05237233A1993-09-17
JP2002365593A2002-12-18
JPH09113862A1997-05-02
JPH09211419A1997-08-15
JPH07178223A1995-07-18
JPH10268805A1998-10-09
Attorney, Agent or Firm:
Yoshii, Takeshi (Nagaoka-shi, Niigata, JP)
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