Projector
AssigneeSeiko Epson Corporation
InventorsMotoyuki Fujimori, Kazuto Shinohara, Masashi Kitabayashi, Kazuyuki Iinuma
Life of this patent
Estimating the term…
Abstract
A liquid crystal panel unit is attached to a light incident surface of a prism composite. The liquid crystal panel unit includes a panel frame plate holding a liquid crystal panel, and a fixation frame plate glued and fixed to the light incident surface. The panel frame plate is fastened to the fixation frame plate by screws through an intermediate frame plate. By using wedges, the position of the panel frame plate with respect to the light incident surface is adjusted. This allows the liquid crystal panel to be reliably positioned and fixed so that the deviation amount in pixel matching is minimized and the focus adjustment can be accomplished correctly.
Claims37
A mounting mechanism for mounting a light valve on a side surface of a prism comprising:
- a fixation frame plate that is fixed on the side surface of the prism;
- a light valve frame plate that holds the light valve, the light valve frame plate being detachably fixed on the fixation frame plate and the light valve frame plate and the fixation frame plate being fixed to onto a same side of the prism.
A projection type display device of a type projector which modulates a plurality of color beams through a plurality of light valves, synthesizes the modulated color beams by a prism, and projects a synthesized beam through a projection lens, the projection type display device projector comprising:
- a fixation frame plate that is fixed on a side surface of the prism;
- and
- a light valve frame plate that holds a the light valve, the light valve frame plate being detachably fixed on onto the fixation frame plate and the light valve frame plate and the fixation frame plate being fixed to a same side of the prism.
A mounting mechanism for mounting a light valve on a side surface of a prism comprising:
- a fixation frame plate that is fixed on the side surface of the prism;
- a intermediate frame plate that is detachably fixed on the fixation frame;
- a light valve frame plate that holds the light valve plate, the light valve frame plate and the fixation frame plate being fixed to a same side of the prism;
- and
- a positioning mechanism positioned proximate to member that is glued and fixed between the intermediate frame plate for positioning and the light valve frame plate.
A projection type display device of a type projector which separates a beam from a light source into beams of a plurality of colors, modulates each color beam through a corresponding light valve in accordance with image information, synthesizes the modulated color beams by light synthesizing prism, and projects the synthesized beam onto a projection surface through a projecting mechanism in an enlarged state, the projection type display device projector comprising:
- a fixation frame plate fixed to a light incident surface of a the light synthesizing prism;
- a light valve frame plate for holding the light valve;
- a fixing mechanism for that detachably fixing fixes the light valve frame plate to the fixation frame plate, the light valve frame plate and the fixation frame plate being fixed to a same side of the prism;
- and
- a positioning mechanism positioned proximate to the fixation frame plate for positioning the light valve.
A projection type display device of a type projector which separates a beam from a light source into beams of a plurality of colors, modulates each color beam through a corresponding light valve in accordance with image information, synthesizes the modulated color beams by light synthesizing prism, and projects the synthesized beam onto a projection surface though a projection mechanism in an enlarged state, the projection type display device projector comprising:
- a fixation frame plate fixed to a light incident surface of a the light synthesizing prism;
- a light valve frame plate for holding the light valve;
- an intermediate frame plate placed between the fixation frame plate and the light valve frame plate;
- a fixing mechanism for that detachably fixing fixes the light valve frame plate and the intermediate frame plate to the fixation frame plate, the light valve frame plate and the fixation frame plate being fixed to a same side of the prism;
- and
- a positioning mechanism positioned proximate to the intermediate frame plate for positioning the light valve.
A projector which modulates a plurality of color beams, modulates each color beam through a plurality of light valves, synthesizes the modulated color beams by a prism, and projects a synthesized beam through a projection lens, the projector comprising:
- a fixation frame plate that is fixed on a side surface of the prism;
- a light valve frame plate that holds the light valve, the light valve frame plate being detachably fixed onto the fixation frame plate and the light valve frame plate and the fixation frame plate being fixed to a same side of the prism;
- a power supply;
- an input/output interface circuit;
- a video signal processing circuit;
- a control circuit for driving and controlling the projector;
- and
- an outer casing for housing the light valves, the prism, the fixation frame plate, the light valve frame plate, the power supply, the input/output interface circuit, the video signal processing circuit, and the control circuit.
A projector which separates a beam from a light source into a plurality of color beams, modulates each color beam through a corresponding light valve in accordance with image information, synthesizes the modulated color beams by light synthesizing prism, and projects the synthesized beam onto a projection surface through a projecting mechanism in an enlarged state, the projector comprising:
- a fixation frame plate fixed to a light incident surface of the light synthesizing prism;
- a light valve frame plate for holding the light valve;
- a fixing mechanism that detachably fixes the light valve frame plate to the fixation frame plate, the light valve frame plate and the fixation frame plate being fixed to a same side of the prism;
- a positioning mechanism positioned proximate to the intermediate frame plate for positioning the light valve;
- a power supply;
- an input/output interface circuit;
- a video signal processing circuit;
- a control circuit for driving and controlling the projector;
- and
- an outer causing for housing the light source, the light valve, the prism, the fixation frame plate, the light valve frame plate, the fixing mechanism the positioning mechanism, the power supply, the input/output interface circuit, the video signal processing circuit, and the control circuit.
A projector which separates a beam from a light source into a plurality of color beams, modulates each color beam through a corresponding light valve in accordance with image information, synthesizes the modulated color beams by light synthesizing prism, and projects the synthesized beam onto a projection surface through a projecting mechanism in an enlarged state, the projector comprising:
- a fixation frame plate fixed to a light incident surface of the light synthesizing prism;
- a light valve frame plate for holding the light valve;
- an intermediate frame plate placed between the fixation frame plate and the light valve frame plate;
- a fixing mechanism that detachably fixes the light valve frame plate to the fixation frame plate, the light valve frame plate and the fixation frame plate being fixed to a same side of the prism;
- a positioning mechanism positioned proximate to the intermediate frame plate for positioning the light valve;
- a power supply;
- an input/output interface circuit;
- a video signal processing circuit;
- a control circuit for driving and controlling the projector;
- and
- an outer casing for housing the light source, the light valve, the light synthesizing prism, the fixation frame plate, the light valve frame plate, the intermediate frame plate, the fixing mechanism, the positioning mechanism, the power supply, the input/output interface circuit, the video signal processing circuit, and the control circuit.
Dependencies are inferred from the claim text.