Title:
ディスプレイ装置
Document Type and Number:
Japanese Patent JP4937118
Kind Code:
B2
Abstract:
A display device (100) of the present invention has a first switch (3) and a second switch (4) on an upper surface of its casing, and includes a control circuit (18) for controlling the first switch (3) and the second switch (4) and a light source (19) inside the casing. The control circuit (18) performs control so that the light source (19) is turned on when the second switch (4) is pressed after a predetermined period of time has passed from when the first switch (3) was pressed. Thereby, the display device (100) of the present invention prevents entering of a person into a projection area before projection of video, and controls inadvertent start-up.
Inventors:
Toshifumi Yokoyama
Kenichi Kasumi
Shinichi Kadowaki
Mizuuchi official
Hiroyuki Furuya
Kazuhisa Yamamoto
Kenichi Kasumi
Shinichi Kadowaki
Mizuuchi official
Hiroyuki Furuya
Kazuhisa Yamamoto
Application Number:
JP2007518919A
Publication Date:
May 23, 2012
Filing Date:
May 22, 2006
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
G03B21/00; G09G3/20; G09G3/34; G09G3/36; G09G5/00
Domestic Patent References:
| JPH0366365A | 1991-03-22 | |||
| JP2001249399A | 2001-09-14 | |||
| JP2004045548A | 2004-02-12 | |||
| JPH0340705A | 1991-02-21 |
Attorney, Agent or Firm:
Mitsuo Tanaka
Samejima Mutsumi
Hiroshi Okabe
Samejima Mutsumi
Hiroshi Okabe