PROJECTION DISPLAY APPARATUS

• US 20120133894A1
• Filed: 11/30/2011
• Published: 05/31/2012
• Est. Priority Date: 11/30/2010
• Status: Abandoned Application

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Tanaka, Masafumi, Matsumoto, Shinya, Maeda, Makoto, Kubo, Ryoko
• Application Number:
  US13/307,820
• Publication Number:
  US 20120133894A1
• Time in Patent Office: Days
• US Class Current: 353/15
• CPC Class Codes: G03B 21/28 Reflectors in projection beam in illumination beam G03B21/2066
• CPC Class Codes: G03B 31/00 Associated working of cameras or projectors with sound-recording or sound-reproducing means
• CPC Class Codes: H04R 1/028 associated with devices performing functions other than acoustics, e.g. electric candles
• CPC Class Codes: H04R 2499/15 Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
• CPC Class Codes: H04R 7/04 Plane diaphragms

Abstract

A projection display apparatus is placed on an installation surface forming a horizontal plane and projects an image onto a projection plane provided on a horizontal plane. The projection display apparatus includes: an imager that modulates the light emitted from a light source; an projection unit that projects the light emitted from the imager onto the projection plane; and an acoustic device that outputs a sound in the vertical direction.

Claims

1. A projection display apparatus placed on an installation surface forming a horizontal plane and projecting an image onto a projection plane provided on a horizontal plane, comprising:

an imager that modulates the light emitted from a light source;

an projection unit that projects the light emitted from the imager onto the projection plane; and

an acoustic device that outputs a sound in the vertical direction.

2. The projection display apparatus according to claim 1, wherein the acoustic device outputs the sound by the vibrations of the installation surface.

3. The projection display apparatus according to claim 1, comprising a reverberating plate facing the installation surface, wherein the acoustic device outputs the sound generated from the vibrations of a vibration plate by reverberating the sound with the reverberating plate.

4. The projection display apparatus according to claim 1, wherein

the projection unit comprises a reflection mirror having a mirror surface for reflecting the light emitted from the imager onto the projection plane side and a rear surface, and

the acoustic device outputs the sound in the vertical direction by reverberating the sound on the rear surface of the reflection mirror.

5. The projection display apparatus according to claim 1, wherein

the acoustic device, when seen from the front of the projection display apparatus, comprises a first sound output unit provided on the first side-surface side and a second sound output unit provided on the second side-surface side, and

the sounds output from the first sound output unit and the second sound output unit are mutually independently controlled.

6. A projection display apparatus placed on an installation surface forming a horizontal plane and projecting an image onto a projection plane provided on a horizontal plane, comprising:

an imager that modulates the light emitted from a light source;

an projection unit that projects the light emitted from the imager onto the projection plane; and

an acoustic device that outputs the sound toward the projection plane.

7. The projection display apparatus according to claim 6, wherein

the projection unit comprises a reflection mirror having a mirror surface for reflecting the light emitted from the imager onto the projection plane side, and

the acoustic device outputs the sound toward the projection plane by reverberating the sound on the mirror surface of the reflection mirror.

8. The projection display apparatus according to claim 6, wherein the acoustic device directly outputs the sound toward the projection plane without using the reverberation of sound.

9. The projection display apparatus according to claim 6, wherein

the acoustic device, when seen from the front of the projection display apparatus, comprises a first sound output unit provided on the first side-surface side and a second sound output unit provided on the second side-surface side, and

the sounds output from the first sound output unit and the second sound output unit are mutually independently controlled.