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)
ARISAWA SANJI (JP)
TOMITA SEIJIRO (JP)
Application Number:
PCT/JP2004/002042
Publication Date:
September 23, 2004
Filing Date:
February 20, 2004
Export Citation:
Assignee:
SOPHIA INC (JP)
ARISAWA SEISAKUSHO KK (JP)
AMITA TECHNOLOGIES INC (JP)
IOKI SADAO (JP)
ARISAWA SANJI (JP)
TOMITA SEIJIRO (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:
WO1994006249A1 | 1994-03-17 | |||
WO2001059509A1 | 2001-08-16 |
Foreign References:
JPH1063199A | 1998-03-06 | |||
JP2003044016A | 2003-02-14 | |||
JPH05237233A | 1993-09-17 | |||
JP2002365593A | 2002-12-18 | |||
JPH09113862A | 1997-05-02 | |||
JPH09211419A | 1997-08-15 | |||
JPH07178223A | 1995-07-18 | |||
JPH10268805A | 1998-10-09 |
Attorney, Agent or Firm:
Yoshii, Takeshi (Nagaoka-shi, Niigata, JP)
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