Compact projection display device

Optics: image projectors – Composite projected image

Reexamination Certificate

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Reexamination Certificate

active

07108376

ABSTRACT:
A projection display device includes a plurality of display elements, such as transmissive-type or reflective-type liquid crystal light valves. Each display element includes an effective pixel region and an image display region that is smaller than and within the effective pixel region. Different light beams are modulated by the display elements and the light beams are combined by an optical block combiner to form a projected image. The central position of the image display region of at least one of the display elements is offset from the central position of the effective pixel region so that the distance between central positions of the image display regions of at least two of the display elements, including at least one display element with an offset image display region, is less than a standard distance associated with prior art arrangements of projection display devices. This enables making the optical block combiner smaller.

REFERENCES:
patent: H07-333497 (1995-12-01), None
patent: 2002-258154 (2002-09-01), None

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