KR100207668B1 - Lcd monitor attached video camera and tv projector adapter - Google Patents

Abstract

The present invention relates to a video camera with a liquid crystal monitor, and provides an apparatus for providing a liquid crystal projector function. In the video camera 1 with the liquid crystal monitor, the liquid crystal panel 3 of the liquid crystal monitor 2 is rotatably supported about the rotation axis 6 of the liquid crystal panel, and the backlight 4 and the liquid crystal driving circuit 5 are supported. It is configured to be separated from the. On the other hand, the projector adapter 20, which is an adapter device of the video camera 1 with a liquid crystal monitor, includes a light source 23, a condenser lens 26, a 27, and a projection lens 22. The liquid crystal panel insertion hole 33 into which 3) is inserted is provided. Therefore, according to the present invention, the liquid crystal panel 3 of the video camera 1 with the liquid crystal monitor is rotated and inserted into the liquid crystal panel insertion hole 33 of the projector adapter 20, thereby displaying the image displayed on the liquid crystal panel 3. Can be projected on the screen (53).

Description

Video Camera with LCD Monitor and TV Projector Adapter

1 is a conceptual diagram showing the membership of a projector formed by attaching a liquid crystal monitor video camera according to the present invention to a projector adapter.

2 is a conceptual diagram showing the membership of a liquid crystal monitor video camera according to an embodiment of the present invention.

3 is a rear view of a video camera with a liquid crystal monitor.

4 is a side cross-sectional view of a video camera with a liquid crystal monitor.

5 is a diagram showing a projector adapter according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: Video camera with LCD monitor 2: LCD monitor

3: liquid crystal panel 4: backlight

4a: light source 4b: light guide plate

5 liquid crystal driving circuit 6 liquid crystal panel rotating shaft

7: LCD monitor rotation axis 8: sensor switch

9 liquid crystal panel opening and closing knob 10 liquid crystal panel drive wiring cable

11 liquid crystal monitor connection wiring cable 12 liquid crystal panel driver circuit board

13 diffuser 14 zoom lens

15: Recording start / stop button 16: Operation button

17: Zoom operation button 18: Power button

19: cassette ejection lid knob 20: projector adapter

21 housing 22 projection lens

23: light source 24: reflector

25 UV / IR filter 26 First condenser lens

27: second condenser lens 28: AC power cord

29: cooling fan 30: audio image input terminal

31: speaker 33: liquid crystal panel insertion hole

41: TV tuner

51: connector for connecting a video camera with a liquid crystal monitor and a TV tuner

52: connector for connecting the TV tuner and the projector adapter

53: Projection Screen 60: Projector Adapter

61 housing 61a: housing block

62: rotation axis

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video camera with a liquid crystal monitor and its accessories, and more particularly, to a video camera with a liquid crystal monitor and a projector adapter capable of sharing a liquid crystal panel of a liquid crystal monitor with a liquid crystal panel of a liquid crystal projector.

BACKGROUND ART Conventionally, Japanese Patent Application Laid-Open Nos. Hei 3-65879, Hei 5-203902 and Hei 5-328179 are known as an integrated video camera with a projector capable of using an image obtained by a video camera as a projector.

As a viewfinder of a video camera, an electronic viewfinder using a light receiving display panel such as a liquid crystal display panel is known. The electronic viewfinder uses a small liquid crystal panel (eye size 0.5 inch to 0.7 inch) in the form of an eyepiece, and a medium size panel (2 inch to 5 inch large) that can be seen directly.

Meanwhile, as a projector for viewing a large screen image, there is a single plate type liquid crystal projector including a liquid crystal panel of a single plate, a light source, a projection lens, and the like.

Since the integrated video camera with the projector is to combine the projector mechanism with the video camera, the structure becomes complicated and the camera becomes large in size, and the price is naturally expensive. In addition, since a large power light source is required to obtain a large screen, this integrated video camera has many problems in terms of heat and power supply.

In addition, since the TFT (this-film transistor) liquid crystal panel used in the liquid crystal projector is expensive, there is a problem that the price of the liquid crystal projector is also high.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an inexpensive liquid crystal projector apparatus by sharing a liquid crystal panel of a video camera with a liquid crystal monitor with a liquid crystal projector.

In order to achieve the above object, the present invention is characterized in that in a video camera with a liquid crystal monitor, the liquid crystal panel of the liquid crystal monitor is supported by a rotation axis, and the liquid crystal panel can be separated from the backlight and the liquid crystal driving circuit.

In the video camera with a liquid crystal monitor of the present invention, it is preferable that a wiring connecting the liquid crystal panel and the liquid crystal driving circuit is made to pass through the inside of the rotating shaft supporting the liquid crystal panel.

In the video camera with a liquid crystal monitor of the present invention, it is preferable to further provide a sensor switch which is operated when the liquid crystal panel and the backlight are separated, and to turn off the backlight by the output of the sensor switch.

In addition, the video camera with a liquid crystal monitor of the present invention preferably further comprises a terminal for connecting a TV tuner or external video equipment.

The projector adapter for a video camera with a liquid crystal monitor includes an insertion hole into which a liquid crystal panel is inserted, a light source for irradiating the liquid crystal panel inserted into the insertion hole, and a projection lens for projecting an image of the liquid crystal panel onto a screen. It features.

In addition, the projector adapter for a video camera with a liquid crystal monitor of the present invention preferably further includes an input terminal for inputting a voice signal of the video camera with a liquid crystal monitor, an amplifier for amplifying the voice signal, and a speaker for outputting the voice signal. Do.

According to the video camera with a liquid crystal monitor according to the present invention, the liquid crystal panel of the video camera with a liquid crystal monitor is rotated to be separated from the backlight and the liquid crystal driving circuit, and the adapter device comprises a liquid crystal panel including an insertion hole, a light source, a projection lens, or the like of the liquid crystal panel. Use with to configure the projector.

In addition, by passing the wiring through the rotation shaft supporting the liquid crystal panel, the wiring does not become an obstacle in the rotation operation of the liquid crystal panel, and there is no fear of disconnection of the wiring.

In addition, when the liquid crystal panel of the video camera with the liquid crystal monitor is separated from the backlight and used in the projector, the backlight which becomes unnecessary in conjunction with the separating operation of the liquid crystal panel is turned off using the sensor switch. In addition, depending on the optical system of the adapter device for the projector, it is necessary to invert and project the image of the liquid crystal monitor from side to side. The switching of the scanning direction of the liquid crystal drive circuit can be performed in conjunction with the separate operation of the liquid crystal panel using a sensor switch. have.

In addition, since a terminal for connecting a TV tuner or an external video device is provided, an image of a TV or other video device can be displayed on a liquid crystal monitor. In addition, the image of the liquid crystal monitor can be displayed on the screen by the projector.

According to the projector adapter for a video camera with a liquid crystal monitor according to the present invention, a liquid crystal panel of a video camera with a liquid crystal monitor detachable can be inserted into a liquid crystal panel insertion hole of an adapter to operate as a projector for illuminating an image displayed on the liquid crystal panel. .

In addition, by inputting the audio signal from the video camera to the projector adapter, the audio can be output from the speaker, and a large audio output can be obtained.

Hereinafter, a video camera with a liquid crystal monitor and a projector adapter bonded thereto will be described in detail with reference to the drawings.

1 is a view showing the configuration of a liquid crystal monitor video camera and a projector adapter bonded thereto according to the present invention.

The video camera with a liquid crystal monitor (1, hereinafter, referred to as a video camera) of this embodiment shown in FIG. 1 is a normal liquid crystal as shown in FIGS. 2 and 3 except for the liquid crystal monitor 2 portion. It is the same as a video camera with a monitor. That is, FIG. 2 is a front view of the video camera, and the liquid crystal monitor is rotated 180 degrees, and FIG. 3 is a rear view thereof.

First, a schematic configuration of the video camera 1 will be described with reference to FIGS. 2 and 3.

The video camera 1 includes a mechanism of a small VTR (not shown), a driving circuit, a video audio recording / reproducing circuit, a CCD, a camera video circuit, a zoom lens driving circuit, an electric circuit including various functions, and an operation control system.

The liquid crystal monitor 2 of the video camera 1 is composed of a liquid crystal panel 3, a backlight 4, and a liquid crystal drive circuit 5. The liquid crystal monitor 2 is attached to the case 1a of the video camera 1 so as to be rotatable by the liquid crystal monitor rotation shaft 7.

The liquid crystal panel 3 is rotatably supported by the liquid crystal panel rotating shaft 6, as described later by FIG. 4, and has a structure detachable from the backlight 4 and the liquid crystal drive circuit 5. have. Reference numeral 9 denotes a liquid crystal panel opening and closing knob, and according to the operation of the liquid crystal panel opening and closing knob 9, the liquid crystal panel can be separated from the backlight 4.

In Fig. 2, reference numeral 14 denotes a zoom lens of the video camera 1, reference numeral 15 denotes a recording start / stop button for starting and stopping recording, and reference numeral 19 denotes a cassette (not shown) inside the case 1a. Is a cassette ejection lid knob which is operated when opening the lid 1b rotatably attached to the case 1a to mount or take out.

In FIG. 3, reference numeral 16 denotes various operation buttons of the video camera 1, reference numeral 17 denotes a zoom operation button, and reference numeral 18 denotes a power button.

As described above, the liquid crystal monitor 2 of the video camera 1 of the present embodiment is rotatably attached by the liquid crystal monitor rotation shaft 7. In the normal use state of the video camera 1, FIG. As shown in FIG. 2, the liquid crystal monitor 2 is used as a monitor for photographing and reproducing at a position on the back side of the case 1a of the video camera 1, in which case the operator can monitor the liquid crystal monitor from the rear of the video camera 1. You will see the video in (2).

On the other hand, as shown in FIG. 2, the liquid crystal monitor 2 is rotated 180 degrees so that the display portion 3a of the liquid crystal monitor 2 faces the front of the video camera 1. In this state, the state where the subject person is photographed can be seen on the liquid crystal monitor 2.

When the liquid crystal monitor 2 is rotated 180 degrees, the display screen is reversed up and down, so that the liquid crystal drive circuit 5 is controlled so that the image displayed on the liquid crystal display monitor is reversed up and down. That is, in this case, since the left and right are the same as the mirror surface seen from the subject person, they are not reversed.

The upside-down inversion of the image is performed by a sensor switch (not shown) which detects the rotated state of the liquid crystal monitor 2, and the inverted angle can be appropriately set. Set to work on.

When the VTR reproduction image is displayed on the liquid crystal monitor 2, the scanning direction can be switched by the liquid crystal drive circuit 5 so that the left and right are reversed as well as the upside down and downside so as to become a normal display screen.

A liquid crystal monitor 2 will be described in detail with reference to FIG. 4. As shown in the figure, the liquid crystal panel 3 of the liquid crystal monitor 2 is rotatably supported by the liquid crystal panel rotation axis 6, and the light source 4a and the light guide plate, which are other components of the liquid crystal monitor 2, are shown in FIG. The backlight 4, the diffusion plate 13, the liquid crystal drive circuit 5, and the like, which are made of (4b), can be separated.

As the wiring 10 between the liquid crystal drive circuit 5 and the liquid crystal panel 3, a flat cable such as an FPC is used, and a connection is made through the inside of the liquid crystal panel rotating shaft 6.

The liquid crystal panel 3 is not particularly limited, but in this embodiment, a TFT active mattress having a screen size of 3 inches to 4 inches is used.

The liquid crystal drive circuit 5 is formed on the liquid crystal panel drive circuit board 12. The liquid crystal panel drive circuit board 12 has a liquid crystal panel rotating shaft (a) in which the liquid crystal panel 3 faces the backlight 4. 6) The sensor switch 8 is installed to detect when it rotates around and falls. When the sensor switch 8 is operated, the backlight 4 which becomes unnecessary is turned off, and the scanning direction of the liquid crystal drive circuit 5 is switched as necessary. This will be described later.

In addition, the liquid crystal monitor 2 and the main body of the video camera 1 are connected by a liquid crystal monitor connection wiring cable 11 that passes through the liquid crystal monitor rotation axis 7, and the liquid crystal monitor 2 is connected from the main body of the video camera 1. The video signal, the control signal, the power supply, and the like are supplied.

Next, with reference to FIG. 1, a projector adapter according to another embodiment of the present invention, which makes it possible to view an image obtained by the liquid crystal monitor 2 of the video camera 1 described above as a projection image, will be described.

The projector adapter 20 as an adapter device of the video camera 1 includes a housing 21, a light source 23 provided in the housing 21, a UV / IR filter 25 (infrared / ultraviolet filter), and a first condenser lens. (26), a second focusing lens (27), a reflecting mirror (24), a projection lens (22), and a cooling fan (29) for cooling heat from the light source (23).

The housing 21 is provided with a liquid crystal panel insertion hole 33 into which the liquid crystal panel 3 of the liquid crystal monitor 2 of the video camera 1 shown in FIGS. 2 to 4 is inserted. That is, the first condenser lens 26 is disposed at the front position of the liquid crystal panel insertion hole 33 and the second condenser lens 27 is disposed at the rear position of the liquid crystal panel insertion hole 33.

The projection lens 22 is configured to project an image displayed on the liquid crystal panel 3 inserted into the liquid crystal panel insertion hole 33 onto the screen 53, and includes a focus adjustment mechanism (focus ring, not shown). have.

The projector adapter 20 further includes a connection connector 52b which is connected to the connection connector 51a of the video camera 1 or the connection connector 52a of the TV tour 41. The video camera 1 is provided with a small speaker for a monitor (not shown). The audio signal from the video camera 1 is connected to the connecting connector 51a and the connecting connector 52b. ) To be supplied.

The TV tuner 41 used for the projector adapter 20 is connected to the connection connector 52a connected to the connection connector 52b on the projector adapter 20 side and the connection connector 51a of the video camera 1. A connection connector 51b is provided to supply a TV video signal to the video camera 1 or a TV audio signal to the projector adapter 20 through these connection connectors. That is, in FIG. 1, the video camera 1 is connected to the projector adapter 20 through the TV tuner 41. When the TV tuner 41 is not used, the video camera 1 is directly connected to the connector 51a. ) And the connection connector 52b can be connected to the projector adapter 20.

Reference numeral 30 denotes an audio video input terminal, which is capable of supplying video signals to the video camera 1 and audio signals to the projector adapter 20 by connecting other video equipment.

Next, an example of using the video camera 1 according to the present embodiment together with the projector adapter 20 to operate as the projector adapter 20 will be described. In the present embodiment, a case where the reproduced image of the recorded image shot by the video camera 1 is projected by the projector adapter 20 is described.

First, the liquid crystal panel opening and closing knob 9 of the liquid crystal monitor 2 of the video camera 1 is operated to rotate the liquid crystal panel 3 about 90 degrees about the liquid crystal panel rotation axis 6 from the backlight 4 side. Spaced apart. Then, the liquid crystal panel 3 in a 90 degree rotated state is inserted as shown in the liquid crystal panel insertion hole 33 of the projector adapter 20. Then, the connection connector 51a of the video camera 1 is connected to the connection connector 51b of the TV tuner 41 in which the projector adapter 20 is mounted in advance.

On the other hand, the projector adapter 20 is turned on by connecting the AC power cord 28 to a power source.

In this state, the video camera 1 is operated in the recording / playback mode to display an image on the liquid crystal panel 3.

Light emitted from the light source 23 is irradiated to the liquid crystal panel 3 through the UV / IR filter 25 and the first condenser lens 26. The light transmitted through the liquid crystal panel 3 is reflected by the reflector 24 through the second condenser lens 27 and enters the projection lens 22. The light is transmitted to the liquid crystal panel 3 on the front surface 53a of the screen 53. The displayed image is enlarged and projected.

The audio signal is input from the connection connector 51a to the connection terminal 52b of the projector adapter 20 via the TV tuner 41, and the sound is magnified and output from the speaker 31.

As described with reference to FIG. 4, when the liquid crystal panel 3 of the video camera 1 is separated from the main body side, the sensor switch 8 is operated to turn off the backlight 4 of the liquid crystal monitor 2.

The scanning direction of the liquid crystal drive circuit 5 can be switched from side to side and up and down using the detection output of the sensor switch 8. In the case of using the projector adapter 20 according to the present embodiment, the liquid crystal panel 3 Since the image displayed on the image is converted by the reflector 24 and the projection lens 22, it is not necessary to change the scanning direction. However, when the screen 53 is viewed from the inner surface side 53b, it is necessary to invert left and right to display the liquid crystal panel 3.

As described above, by using the projector adapter 20 which is an adapter device of the video camera 1 with a liquid crystal monitor, the display image of the liquid crystal monitor 2 can be enlarged and viewed, and the monitor of the video camera 1 can be viewed. It is possible to obtain an enlarged audio output that cannot be obtained with the speaker for the purpose.

In the above, the example in which the recorded and reproduced image by the video camera 1 is projected on the screen using the projector adapter 20 has been described. However, the TV tuner 41 supplies the TV signal to the video camera 1. Then, an image is displayed on the liquid crystal panel 3 of the video camera 1, and an audio signal is output from the speaker 31 of the projector adapter 20, so that the image of the large screen and the powerful sound can be enjoyed.

In addition, the present invention connects another video device to the audio image input terminal 30 of the projector adapter 20 or to an input terminal (not shown) of the TV tuner 41, and projects the image on the screen 53 Can also be used for viewing.

That is, in the above-described embodiment, the liquid crystal monitor 2 of the liquid crystal video camera 1 is rotatable 180 degrees, but the liquid crystal monitor does not necessarily need to be rotatable.

5 shows another embodiment of a projector adapter.

Referring to FIG. 5, a liquid crystal panel insertion hole 63 into which the liquid crystal panel 3 of the video camera 1 is inserted is installed above the housing 61 of the projector adapter 60. The projector adapter 60 of this embodiment is comprised of the same functional parts as the projector adapter 20 of FIG. 1. In this embodiment, the projection lens 22 and the reflector 24 are rotated in the X direction as shown. It is connected to the rotating shaft 62 so that it may be provided in the housing block 61a attached to the housing 61. As shown in FIG. The housing block 61a is supported to be rotated 90 degrees about the rotation axis 62, and can easily change the projection direction in accordance with the position of the projection screen 53.

When using the projector adapter 60, the liquid crystal panel 3 of the video camera 1 is rotated 90 degrees and inserted into the liquid crystal panel insertion hole 33 of the projector adapter 60 as shown from above, and completely In the inserted state, it may be used in the same manner as in the embodiment of FIG. That is, in Fig. 5, the connection terminal for supplying and receiving the video and audio signals between the video camera 1 and the projector adapter 60 is not shown. do.

As described above, the video camera with the liquid crystal monitor of the present invention is configured to be detachable by rotating the liquid crystal panel of the liquid crystal monitor, so that the liquid crystal panel can be used in combination with the projector adapter of the adapter device and the liquid crystal monitor of the video camera. The video camera itself can be enlarged and viewed with a projector, and the video camera itself is not large because the projector is configured to be shared with the adapter device.

In addition, by passing the wiring connecting the liquid crystal panel and the liquid crystal driving circuit into the rotating shaft for supporting the liquid crystal panel, the liquid crystal panel can be separated from the liquid crystal driving circuit so that the liquid crystal panel can be separated without problems when used in the projector adapter. .

In addition, by providing a sensor switch that operates when the liquid crystal panel is removed, the backlight which becomes unnecessary when the liquid crystal panel is removed can be automatically turned off. When the display image of the liquid crystal monitor needs to be inverted from side to side, it can be used to switch the scanning direction of the liquid crystal drive by interlocking the output of the sensor switch with the separating operation of the liquid crystal panel.

In addition, the present invention can be connected to a video camera with a liquid crystal monitor, a TV tuner, and other video equipment to display their image on the liquid crystal monitor, and to enlarge and view the image by connecting to a projector adapter. .

Since the projector adapter of the present invention has a liquid crystal panel insertion hole into which a liquid crystal panel of a video camera with a liquid crystal monitor is inserted, the liquid crystal panel can be operated as a projector adapter in combination with a video camera with a liquid crystal monitor that can be detached, thereby inexpensive liquid crystal. You can get a projector. In addition, since the projection lens, the light source, and the like are composed of different adapters, the portable characteristics of the video camera with the liquid crystal monitor are not impaired.

In addition, the projector adapter according to the present invention can obtain the audio output by amplifying the audio signal of the video camera with the liquid crystal monitor and applying it to the speaker, and can obtain a loud audio that cannot be obtained with the monitor speaker of the video camera itself. do.

Claims (6)

A video camera with a liquid crystal monitor, wherein the liquid crystal panel of the liquid crystal monitor is supported by a rotating shaft, and the liquid crystal panel can be separated from a backlight and a liquid crystal driving circuit. The video camera with a liquid crystal monitor according to claim 1, wherein a wiring connecting said liquid crystal panel and said liquid crystal drive circuit is made to pass through said rotating shaft which supports said liquid crystal panel. The video camera with a liquid crystal monitor according to claim 1, further comprising a sensor switch which is operated when the liquid crystal panel and the backlight are separated, and the backlight is turned off by the output of the sensor switch. The video camera with a liquid crystal monitor according to claim 1, wherein the video camera with a liquid crystal monitor further comprises a terminal for connecting a TV tuner or an external video device. An insertion hole into which a liquid crystal panel of a video camera with a liquid crystal monitor is inserted, a light source for irradiating the liquid crystal panel inserted into the insertion hole, and a projection lens for projecting an image of the liquid crystal panel on a screen; Projector adapter for video cameras with monitors. The projector adapter of claim 5, wherein the projector adapter for a video camera with a liquid crystal monitor further comprises an input terminal for inputting a voice signal of the video camera with a liquid crystal monitor, an amplifier for amplifying the voice signal, and a speaker for outputting the voice signal. Projector adapter for a video camera with a liquid crystal monitor characterized in that it comprises.