IP Library Granted Patent US 9,667,924
Granted Patent B2
US 9,667,924 · App. 14/854,791 · Granted May 30, 2017

Projection-type image display device

Inventors: Kazuo Mukai (Kyoto, JP); Takahiro Takemori (Osaka, JP); Masutaka Inoue (Osaka, JP)
Assignee: Panasonic Intellectual Property Management Co., Ltd.
H04N9/3141G03B21/005G03B21/145G03B21/204G03B21/2066G03B33/06G09F19/18G09F19/22G09F19/228
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Quick Facts
Patent No.
US 9,667,924
App. No.
14/854,791
Granted
May 30, 2017
Kind
B2
Abstract

A projection-type image display device includes a first housing and a second housing. The first housing houses a light source unit configured to emit light, an image generating unit configured to modulate the light from the light source unit according to a video input signal to generate image light, and a projecting unit configured to project the image light generated by the image generating unit. The second housing includes an output unit configured to output a light signal and/or an input unit configured to input a light signal which are/is exposed and arranged on a surface of the second housing.

Claims (13)

1. A projection-type image display device comprising:

a first housing that houses a light source unit configured to emit light, an image generating unit configured to modulate the light from the light source unit according to a video input signal to generate image light, and a projecting unit configured to project the image light generated by the image generating unit;

a second housing that includes a remote-control signal receiver for receiving an operational signal indicative of an instruction by a user from a remote controller; and

a joint unit for connecting the first housing to the second housing to allow the first housing to freely turn in several directions.

2. The projection-type image display device according to claim 1 , further comprising:

an LED configured to inform the user of an internal state of the projection-type image display device.

3. The projection-type image display device according to claim 2 , wherein

the LED is arranged over a bottom surface and another surface adjoining the bottom surface of the second housing.

4. The projection-type image display device according to claim 3 , wherein the LED and the remote-control signal receiver are arranged on an end of the second housing opposite to another end of the second housing on which the joint unit is disposed.

5. The projection-type image display device according to claim 1 , wherein the second housing has, on its lateral surface, an opening for exhaust.

6. The projection-type image display device according to claim 1 , wherein the second housing houses a power-supply unit configured to supply electric power to the light source unit and the image generating unit.

7. The projection-type image display device according to claim 1 , wherein the joint unit includes a ball shaft having a spherical end, and a shaft holder holding the spherical end to allow the spherical end to slidably turn in a hollow portion of the shaft holder.

8. The projection-type image display device according to claim 1 , wherein the joint unit is rotatable around three mutually independent axes.

Assignments (3)
NUNC PRO TUNC ASSIGNMENT Recorded Feb 24, 2026
From: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
To: PANASONIC PROJECTOR & DISPLAY CORPORATION
Reel/Frame 074988/0945 →
CHANGE OF ADDRESS Recorded Feb 24, 2026
From: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 074984/0429 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2015
From: MUKAI, KAZUO; TAKEMORI, TAKAHIRO; INOUE, MASUTAKA
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 036930/0572 →
Priority Claims (3)
JP 2013-087161 · Apr 18, 2013 · national
JP 2013-140453 · Jul 4, 2013 · national
JP 2013-229155 · Nov 5, 2013 · national
Continuity (2)
Continuation PCTJP2014002203 · Apr 18, 2014
Related Publication 20160006996A1 · Jan 7, 2016