JP2001305654A - Projector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a projector device by which a state that display is infeasible by a video projector part due to the turn-off of a power source or the like is recognized by monitoring a screen. SOLUTION: An additional information light outputting part 6 to project additional information other than a video signal to a screen 2 is provided at a position at which it does not disturb a video projection optical path 4, and the additional information is displayed on the screen 2 without using the OSD function of a video projector part 1. For instance, in the case that the power source is turned off, the stand-by display LED 7 of the additional information light outputting part 6 is turned on by a system controlling part 5, so that the screen 2 displays that it is in a stand-by state. Also, in the case that the display by the video projector part 1 is infeasible due to failure such as the burst of a lamp, the system controlling part 5 detects the failure, and turns on the abnormality warning LED 8 of the additional information light outputting part 6 and displays that it is in a failure state on the screen 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a projector device, and more particularly to a display of additional information.

[0002]

2. Description of the Related Art FIG.
This will be described with reference to FIG. In the figure, reference numeral 1 denotes a video projector unit which projects a video signal as an optical output in order to display a video signal which is a main purpose of the projector device, 2 denotes a screen for projecting a projection video, and 3 denotes a screen 2 for projecting a projection video. 4 is a video projection optical path (hatched portion), 5 is a system control unit for controlling the video projector unit 1 and realizing a function as a projector device, and 10 is remote from the system control unit 5. A remote control light receiving section for receiving a signal from a remote controller (not shown; hereinafter, referred to as a remote control) for performing an operation, 11 is a remote control light receiving window, and 12 is a remote control light receiving path showing a path of a remote control signal to the remote control light receiving window 11. Shows the route.

Next, the operation will be described. In a normal use state, an image projected from the image projector unit 1 is reflected by the mirror 3 and projected on the screen 2. The video projector unit 1 has an on-screen display function (hereinafter abbreviated as OSD function),
Main additional information other than video information such as the presence or absence of an input signal, the type and format of the input signal, and video muting can be displayed on the screen 2. General operations on the projector device, such as switching input channels and adjusting the image quality of a displayed image, are performed by a remote control light receiving unit 1 using a remote control.
0, and the system control unit 5 that has received the signal controls the video projector unit 1 to realize this.

On the other hand, when the power supply of the video projector unit 1 is turned off, the light source lamp for projection is turned off, or the light source lamp for projection is turned off, the video projector unit 1 is broken. To clearly indicate that the screen cannot be displayed by the OSD function, an indicator must be provided on the main unit,
Alternatively, an external display device such as a display unit of an external controller has been used.

[0005]

As described above, in the conventional projector device, the additional information is displayed by the above-described method. Therefore, simply monitoring the screen 2 requires the screen projector 2 to display the additional information. It was not possible to recognize that it was not possible to display on. In particular, in a multi-vision device in which a large screen is composed of a plurality of projector devices, or a box-type rear projector device for business or industrial use, in many cases, only the screen 2 is exposed so as to be monitored, and other than the screen 2, Cannot be physically monitored in a normal use state. Therefore, unless a separate display device is provided outside the screen 2 and the operation of confirming the display is not performed, it is very basic and important to determine whether the device is in a standby state or whether the device has failed. There was a big problem of not knowing the information.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and a projector capable of recognizing, by monitoring a screen, a state in which display by an image projector unit cannot be performed due to a power-off or a failure or the like. The aim is to obtain a device.

[0007]

According to the present invention, there is provided a projector apparatus for projecting a video signal as an optical output, a system control section for controlling the video projector section, and a screen for projecting a projected video. , A light output unit controlled by a system control unit and projecting additional information other than a video signal onto a screen is provided at a position that does not obstruct a projection optical path of a projected image. Also, the light output unit is
It is composed of a light output device such as a light emitting diode. The light output unit is turned on when the display by the video projector unit cannot be performed due to an abnormality such as a power-off or a failure, and displays such a state on the screen. Further, the light output section has a condensing lens for condensing the light output on the screen on the front surface. The system control unit is remotely operated by a remote controller, and the light output unit is provided near a receiving unit that receives a signal from the remote controller.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 (a)
FIG. 1B is a front view showing a configuration of the projector device according to the first embodiment of the present invention, and FIG. In the figure, 1 is a video projector unit for projecting a video signal as an optical output, 2 is a screen for projecting a projected video,
Reference numeral 3 denotes a mirror for guiding the projected image to the screen 2, reference numeral 4 denotes an image projection optical path (hatched portion) which is a projection optical path of the projected image, and reference numeral 5 denotes a device for controlling the image projector unit 1 to realize a function as a projector device. Remote control by a remote controller (not shown) is possible with the system control unit. Reference numeral 6 denotes additional information other than the video signal on the screen 2.
, Which is controlled by the system control unit 5. Reference numeral 7 denotes a standby display light-emitting diode (hereinafter, referred to as a standby display LED) for indicating that the power of the video projector unit 1 is not turned on or that the light source lamp for projection is off.
Reference numeral 8 denotes a screen 2 including an OSD due to a failure of the video projector unit 1 such as a light source lamp being turned off for projection.
Warning light emitting diode (hereinafter referred to as a "warning warning LED") to indicate that video cannot be displayed on the
Reference numeral 9 denotes an additional information light projection path indicating a path of the light output from the standby display LED 7 and the abnormality warning LED 8 to the screen 2. Reference numeral 10 denotes a remote control light receiving unit serving as a remote control receiving unit for receiving a remote control signal for performing a remote operation to the system control unit 5. Reference numeral 11 denotes a remote control light receiving window. FIG.

The projector device according to the present embodiment is characterized in that an additional information light output unit 6 for projecting additional information other than a video signal onto the screen 2 is provided at a position not obstructing the video projection optical path 4. . The additional information light output unit 6 is turned on when the image projector unit 1 cannot display the image due to an abnormality such as a power-off or a failure, and displays such a state on the screen 2. In the present embodiment, the additional information output unit 6 includes the standby display LED 7 and the abnormality warning LED.
8 and is provided near the remote control light receiving unit 10. In other words, the additional information light output unit 6 and the remote control light receiving unit 10 are arranged at positions where the image projection light path 4 is not obstructed, and at positions where the additional information light projection path 9 and the remote control light receiving path 12 fall within the range of the screen 2. .

Next, the operation will be described. In normal use,
An image projected from the image projector unit 1 is reflected by a mirror 3 and projected on a screen 2. The video projector unit 1 has an OSD function. The selected channel, the presence or absence of an input signal, the type and format of the input signal,
Main additional information other than video information such as during video muting can be displayed on the screen 2. For general operations on the projector device, such as switching input channels and adjusting image quality of a displayed image, a remote controller sends a signal to the remote control light receiving unit 10 and the system control unit 5 receiving the signal controls the image projector unit 1. Is realized by: When the power is turned off by the remote controller, the system control unit 5 turns off the power of the video projector unit 1, shifts to the standby state, turns on the standby display LED 7, and displays the standby state on the screen 2. . Further, when the display by the video projector unit 1 is impossible due to lamp burnout or other failure, the system control unit 5 detects the failure by monitoring the state of the video projector unit 1 and turns on the abnormality warning LED 8. Is displayed on the screen 2.

In the present embodiment, the display by the additional information light output unit 6 is arranged substantially at the center below the screen 2, but can be changed to the left or right within the range of the screen 2. Further, the additional information light output unit 6 according to the present embodiment includes a standby display LED 7 and an abnormality warning LED 8, but an LED indicating other additional information such as an LED indicating an input channel and an LED indicating a video mute state. Can also be added. Further, it is also possible to indicate different states with a single LED by changing the light emission color, brightness, blinking and the like of the LED. Further, in the present embodiment, the additional information light output unit 6 is configured by the LED, but any light output device can be used without being limited to the LED. Also, by providing a condensing lens for condensing the light output of the standby display LED 7 and the abnormality warning LED 8 on the screen 2 on the front surface of the additional information light output unit 6, the visibility on the screen 2 can be improved. it can. In the present embodiment, for the sake of convenience of description, a single-reflection rear-projection-type projector device has been described.However, in any combination of the direct-projection method, the two- or more-reflection method, and the front-projection method, The present invention is applicable.

As described above, according to the projector device of the present embodiment, the additional information light output unit 6 for projecting additional information other than the video signal onto the screen 2 is provided, so that the OSD function of the video projector unit 1 is provided. The additional information can be projected on the screen 2 without using it. For this reason, it is determined that the display by the video projector unit 1 cannot be performed due to power-off or a failure.
It can be recognized by monitoring the screen 2 and there is no need to provide a separate display device outside the screen 2 as in the conventional case. Further, by arranging the additional information light output unit 6 in the vicinity of the remote control light receiving unit 10, the operator can recognize the operation and the state only for the screen 2 and realize an excellent man-machine interface.

Embodiment 2 of the embodiment FIG. 2A is a front view showing a configuration of a projector device according to Embodiment 2 of the present invention, and FIG. 2B is a side view. In the drawings, the same or corresponding portions are denoted by the same reference characters and description thereof is omitted. In the present embodiment, the additional information light projection path 9 and the remote control light receiving path 12 are changed in the vertical direction using the mirror 3 by utilizing the characteristic of the single reflection method, and the additional information light output section 6 and the remote control light receiving section 10 are changed. The arrangement of is changed. Other configurations and operations are the same as those in the first embodiment, and thus description thereof is omitted. According to the present embodiment, the same effects as those of the first embodiment can be obtained. Further, the arrangement of the additional information light output section 6 and the remote control light receiving section 10 and the selection of the additional information light projection path 9 and the remote control light receiving path 12 can be selected. Degrees of freedom are given.

[0014]

As described above, according to the present invention, a video projector for projecting a video signal as an optical output, a system controller for controlling the video projector,
In a projector device having a screen for projecting a projected image, a light output unit for projecting additional information other than a video signal onto the screen is provided at a position that does not obstruct the projection optical path of the projected image, so that the image projector unit is used. You can display additional information on the screen without
It is possible to recognize by monitoring the screen that the display by the video projector unit cannot be performed due to power-off or failure.

[Brief description of the drawings]

FIG. 1 is a front view and a side view showing a configuration of a projector device according to a first embodiment of the present invention.

FIG. 2 is a front view and a side view illustrating a configuration of a projector device according to a second embodiment of the present invention.

FIG. 3 is a front view and a side view showing a configuration of a conventional projector device.

[Explanation of symbols]

1 image projector unit, 2 screen, 3 mirror, 4 image projection optical path, 5 system control unit, 6 additional information light output unit, 7 standby display LED, 8 abnormality warning LED, 9 additional information light projection path, 10 remote control light receiving unit, 11 Remote control light receiving window, 12 Remote control light receiving path.

Claims (5)

[Claims] 1. A projector device comprising: a video projector unit for projecting a video signal as an optical output; a system control unit for controlling the video projector unit; and a projector device having a screen for projecting the projection video. A projector which is controlled by the optical output unit and projects an additional information other than the video signal onto the screen at a position which does not obstruct a projection optical path of the projected video. 2. The light output unit according to claim 1, wherein the light output unit includes a light output device such as a light emitting diode.
The projector device as described in the above. 3. The light output section is lit when the display by the video projector section cannot be performed due to a power-off or a failure, and the above-mentioned state is displayed on a screen. Item 3. The projector device according to item 2. 4. The projector device according to claim 1, wherein the light output unit has a condensing lens for condensing the light output on a screen on a front surface. . 5. The system according to claim 1, wherein the system control unit is remotely operated by a remote controller, and the light output unit is provided near a receiving unit that receives a signal from the remote controller. The projector device according to claim 1.