JPH0870416A - Vehicle projector television device - Google Patents

Abstract

PURPOSE: To enjoy a large screen video and to reduce an installation space by providing a lens system which enlarges and projects a liquid crystal panel image on an optical path from bulbs. CONSTITUTION: The indoor light bulb 21 and the bulb for projector television 3 are respectively provided in an indoor light main body 20 installed in a vehicle so that they do not affect each other. Liquid crystal panels 340, 341 and 342 are arranged in the optical path from the bulb for projector television 3, and the lens system which enlarges and projects the images of the liquid crystal panels 340, 341 and 342 is provided. Since the liquid crystal picture is enlarged and projected on a screen installed in an appropriate position in the vehicle through the lens systems 300, 301, 302, 310, 311, 312, 313, 320, 321 and 33, the large screen video can be enjoyed. The main constitution parts of a projector television device are incorporated in the indoor light main body 20 installed in the vehicle and therefore only the small installation space is required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle projector television apparatus for enlarging and projecting a TV image, a VTR image and other information images on a screen installed in a vehicle such as an automobile, and particularly, a large screen image can be enjoyed. In addition, the present invention relates to a vehicle projector television apparatus that requires a small installation space.

[0002]

2. Description of the Related Art As a conventional TV device for a vehicle, a small liquid crystal TV device is used because of its installation space.

[0003]

However, the above-described conventional vehicle TV device uses a small liquid crystal TV device because of the installation space, and therefore TV images, VTR images, and other information images are small. I have a problem.

An object of the present invention is to provide a projector television device for a vehicle which allows a large screen image to be enjoyed and requires a small installation space.

[0005]

According to the present invention, a room light bulb and a projector television bulb are arranged in a room light body installed in a vehicle so as not to affect each other, A liquid crystal panel is arranged in the optical path from the projector television bulb, and a lens system for enlarging and projecting an image on the liquid crystal panel is provided.

[0006]

According to the present invention, with the above construction, the image of the liquid crystal is enlarged and projected through the lens system on the screen installed at an appropriate position in the vehicle, so that a large screen image can be enjoyed. Also,
Since the main components of the projector television device are built in the interior light body installed in the vehicle, the installation space is small.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle projector television apparatus of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, 1 is an automobile. In this automobile 1, an interior light 2 is installed on a ceiling 10. A handle 12 is arranged on the dashboard 11.

As shown in FIG. 3, the interior lamp 2 is housed in an interior lamp body 20 such as a housing made of an opaque material.
The bulbs 21 for individual room lights are arranged with a gap. Shades 22 are arranged outside the two bulbs 21, respectively. The shade 22 includes the interior light bulb 21 and the projector television bulb 3 in order to prevent the interior light bulb 21 and the projector television bulb 3 described later from being influenced by each other. Is to be isolated. Although not shown in the drawings, in order to correspond to the interior light bulb 21 on the lower surface of the main body 20, a lens for irradiating light from the interior light bulb 21 to a predetermined position (see FIG. (Not shown) are provided.

In FIG. 3, reference numeral 3 is a valve for a projector television. The valve 3 is installed in the center of the rear part of the main body 20 (the front of the automobile is the front part).

Inside the main body 20, three lenses 300, 30 for collimating the light flux from the bulb 3 are collimated.
1, 302 are disposed on the front side and both the left and right sides of the valve 3. In addition, four total reflection mirrors 310, 311, 31 are provided at the left and right corners of the front and rear parts of the main body 20.
2, 313 are arranged respectively. Further, two half mirrors (for example, dichroic mirrors) 320 and 321 are arranged in the center of the front part of the main body 20. Furthermore, a light output lens 33 is provided at the center of the front portion of the main body 20.

The first lens (right lens) 300
On the optical axis (optical path) between the first total reflection mirror (the rear right total reflection mirror) 310 and the second total reflection mirror (the front right total reflection mirror) 311. ,
A single (for example, red) wavelength transmission type liquid crystal dot matrix element (red liquid crystal panel) 340 is provided. On the optical axis (optical path) of the second lens (left lens) 301, the third total reflection mirror (rear left side total reflection mirror) 312 and the fourth total reflection mirror (front left side) Between the total reflection mirror (313) and a single (for example, blue)
A wavelength-transmissive liquid crystal dot matrix element (blue liquid crystal panel) 341 is provided. On the optical axis (optical path) of the third lens (center lens) 302, between the lens 302 and the half mirrors 320 and 321, a single (for example, green) wavelength transmissive liquid crystal is formed. A dot matrix element (green liquid crystal panel) 342 is provided.
As described above, the three optical paths from the projector television bulb 3 pass between the interior lamp body 20 and the shade 22 and between the two shades 22, so that the image signal may be affected. There is no.

In FIG. 4, 4 is a TV tuner.
A TV antenna 40 and a video adapter 41 are connected to the TV tuner 4 so that TV broadcasts and videos can be enjoyed. Further, the liquid crystal panels 340, 341, 342 and the speaker 42 are connected to the TV tuner 4, and the image signals from the TV tuner 4 are output to the liquid crystal panels 340, 341, 342, respectively, and the TV tuner is also used. The audio signal from the No. 4 is output to the speaker 42. The TV tuner 4, the video adapter 41, the speaker 42 and the like are arranged at appropriate positions inside the vehicle 1, and the TV antenna 40 is arranged at an appropriate position outside the vehicle 1, and The above-mentioned liquid crystal panels 340, 341 and 342 are arranged in the interior lamp body 20 as described above.

In FIGS. 1 and 2 and FIGS. 5 to 10, 5 is a screen. The screen 5 is a storage box 5 provided on the dashboard 11 (on the side of the center console below the instrumental panel).
It is stored so that it can be taken in and out. That is, a cylindrical fixed guide 51 is fixed in the storage box 50, and a slit-shaped guide groove 52 is provided in the fixed guide 51 in the axial direction. A stay 53 is slidably inserted in the fixed guide 51 in the axial direction of the fixed guide 51, and a stopper 54 is provided at one end of the stay 53, and the stopper 54 is a guide of the fixed guide 51. It is slidably engaged with the groove 52. The screen 5 is attached to the other end of the stay 53 via a hinge 55 so as to be openable and closable. In the storage state, the screen 5 is stored together with the stay 53 in the storage box 50 in a closed state with respect to the stay 53 (see FIGS. 5 and 8). When using the screen 5 and the stay 53, the storage box 5
Pull out from 0 in the direction of the arrow in FIGS. 6 and 9. Then, the screen 5 is attached to the stay 53 as shown in FIGS.
When the screen 5 is opened in the direction of the arrow, the screen 5 is ready for image reception. In addition, if the operation reverse to the above operation is performed, the screen 5 and the stay 53 are stored in the storage box 50.
Can be stored inside. In addition, the above-mentioned screen 5
The size is, for example, A4 size, which is about 12 to 13 inches TV. Further, as the rotating means of the screen 5 with respect to the stay 53, the hinge 55 described above is used.
Other rotation means may be used. For example, as shown in FIG. 3, the screen 5 is rotatably attached to the lower surface of the other end of the stay 53 via the rotating means 56.

The vehicle projector television apparatus according to the present invention in this embodiment has the above-mentioned configuration.
The operation will be described below. First, the screen 5 is pulled out from the storage box 50 and set. Then T
Turn on the power of the V tuner 4. Then, TV antenna 5
A TV broadcast from 0 and a video signal from the video adapter 51 are input to the TV tuner 4. The image signal from the TV tuner 4 is output to the liquid crystal panels 340, 341 and 342 of the vehicle projector television device, and the audio signal is output to the speaker 42.

In the above-described vehicle projector television apparatus, when the projector television valve 3 is turned on by operating the power source switch (not shown) of the TV tuner 4 or separately, the projector television is turned on. The light emitted from the bulb 3 for John enters the three lenses 300, 301 and 302, respectively, and becomes parallel to form three optical paths. One of them, the first
The light collimated by the lens 300 of the first mirror 310
When it is bent at a right angle with and passes through the red liquid crystal panel 340, an image of only the red component of the display image appears. This image is bent again at a right angle by the second mirror 311, and is guided to the first half mirror 320. In addition, the light collimated by the second lens 301 in the other optical path is bent at a right angle by the third mirror 312, and when passing through the blue liquid crystal panel 341, only the blue component of the display image is displayed. Image comes out. This image is bent again at a right angle by the fourth mirror 313 and guided to the second half mirror 321. Further, when the light collimated by the third lens 302 in the remaining one optical path passes through the green liquid crystal panel 342, an image of only the green component of the display image appears. This image is combined with the red component light of the above-mentioned display image by the first half mirror 320, and is combined with the blue component light of the above-mentioned display image by the second half mirror 321, and a colorized image signal is obtained. Is enlarged and projected from the output lens 33 onto the screen 5. An enlarged image is projected on the screen 5, and a large screen image can be enjoyed. Moreover, since the main components of the vehicle projector television apparatus are built in the interior lamp body 20, the installation space for the projector television apparatus can be small.

If the interior light bulb 21 is turned on,
It can also be used as a normal room light.

In the above embodiment, the TV tuner 40 and the video adapter 41 are connected to the TV tuner 4 to enjoy TV broadcasts and videos. However, in addition to this, a navigator device, a rear confirmation device, and the like. Other information devices are connected to the TV tuner 4, and the image signal of the navigator, the image signal of the rear confirmation device, and the image signal of other information are displayed on the screen 5 via the vehicle projector television device of the present invention. It may be configured as follows.

Further, in the above-mentioned embodiment, the screen 5 is housed in the storage box 50 provided on the dashboard 11 together with the stay 53 so that it can be taken out and put in. However, in addition to the dashboard 11, for example, a console box or the like can be used. You may store it in and out.

Further, the vehicle projector television apparatus of the present invention has the ceiling 1 of the automobile 1 as in the above-described embodiment.
The screen 5 may be installed near the driver's seat as in the above-described embodiment, or on the back side of the back of the driver's seat or the passenger seat. Is also good.

In a normal automobile, since the automobile antenna is installed near the rear hood of the automobile, the antenna and the receiving portion are close to each other, which is advantageous in terms of vehicle design and structure.

[0021]

As is apparent from the above, the vehicle projector television apparatus of the present invention can enjoy a large screen image and has a small installation space.

[Brief description of drawings]

FIG. 1 is a schematic side view of an embodiment of a vehicle projector television apparatus of the present invention, showing a state in which an image is projected.

FIG. 2 is a schematic bottom view likewise.

FIG. 3 is likewise a schematic front view.

FIG. 4 is a schematic diagram of a vehicle projector television apparatus of the invention.

FIG. 5 is an electric circuit showing a relationship between a liquid crystal panel and a TV tuner of the vehicle projector television apparatus of the present invention.

FIG. 6 is a partial perspective view of the state where the screen is stored.

FIG. 7 is a partial perspective view showing a state where the screen is pulled out.

FIG. 8 is a partial perspective view showing a state where a screen is set.

FIG. 9 is a partial cross-sectional view of a state in which the screen is stored.

FIG. 10 is a partial cross-sectional view of a state in which the screen is pulled out.

FIG. 11 is a partial cross-sectional view of a state in which the screen is set.

[Explanation of symbols]

1 ... Car, 10 ... Ceiling, 11 ... Dashboard, 2 ...
Interior light, 20 ... Interior light body, 21 ... Interior light bulb, 2
2 ... Shade, 3 ... Projector television bulb, 300, 301, 302 ... Lens, 310, 31
1, 312, 313 ... Total reflection mirrors, 320, 321 ...
Half mirror, 33 ... Output lens, 340, 341, 3
42 ... Liquid crystal panel, 4 ... TV tuner, 40 ... TV antenna, 41 ... Video adapter, 42 ... Speaker, 5 ... Screen, 50 ... Storage box, 51 ... Fixed guide, 5
2 ... Guide groove, 53 ... Stay, 54 ... Stopper, 55 ...
Hinge.

Claims (1)

[Claims] 1. An interior light main body installed in a vehicle, an interior light bulb and a projector television bulb, which are arranged in the interior light main body so as not to affect each other, and a projector television bulb. A projector television device for a vehicle, comprising: a liquid crystal panel arranged in an optical path from the bulb; and a lens system for enlarging and projecting an image on the liquid crystal panel.