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Patent Searching and Data


Title:
STEREOSCOPIC DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP3904643
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To eliminate defects that the pseudo-scopic image is formed in the outer side region of a visual field and that the visual position is fixed due to the fixed geometric shape of the device by making the distance between adjacent barrier strips variable.
SOLUTION: A parallax barrier device 4 is arranged in the front of a display 1 and plural and mutually parallel barrier strips 5 are connected to pantographs 6 through shafts 9 at joint pivots 8. The pantographs 6 have normal pivots 7 and joint pivots 8. The pantographs 6 are connected to a moveable rod mechanism 12 through a moveable rod 11 on one side and the mechanism 12 is controlled by a controller 13. One of the barrier strips 5 located at the center is connected to a fixed point 10 in the space through a shaft 9f. The distance between the strips 5, namely the slit pitch is varied by moving the rod 11 to change the visual distance.


Inventors:
Chikasawa, Miharu
Application Number:
JP1996000321895
Publication Date:
April 11, 2007
Filing Date:
December 02, 1996
Export Citation:
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Assignee:
Thomson, Multimedia SA.
International Classes:
G02B27/26; G02F1/13; G02B27/22; H04N13/00; H04N13/04; (IPC1-7): G02B27/22; G02F1/13; H04N13/04
Domestic Patent References:
JP3119889A
JP8053108A
JP3185718A
JP7287193A
JP9080354A
JP53029268A
Foreign References:
US4807965
WO1995000880A1
Attorney, Agent or Firm:
矢野 敏雄
山崎 利臣