JPS6167377A - Liquid crystal television set in common use for television picture magnifying projection - Google Patents

Abstract

PURPOSE:To attain direct viewing of a liquid crystal television set and magnified projection of a television picture onto a screen by constituting the television set that a light diffusion board is moved between a direct viewing position and a projected position. CONSTITUTION:A reflecting mirror 7 is fitted to a liquid crystal television case 1 and a transmission type liquid crystal television panel 3 is provided to a side opposite to the reflecting mirror 7. A light diffusion board 5 is fitted so as to be moved in the direction of arrow in parallel with the panel 3, and an internal diffusion light source 4 is provided between the panel 3 and the light diffusion board 5. Since the light diffusion board 5 is moved between the direct viewing position and the projected position, the light diffusion board 5 is placed to the direct viewing position and the diffused light is introduced to the panel 3 so as to view directly the liquid crystal television picture. Further, the light diffusion board 5 is saved to the projected position and a projector is applied so as to give parallel ray to the panel 3, allowing a television picture to be projected onto a desired screen with magnification.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a liquid crystal television that can be used for enlarging and projecting television images. , that TV il! A projector that enlarges the ii9 (
A TV image enlarger that allows you to see the enlarged picture frame by clicking! ) 1 dual-purpose LCD television.

[Prior art and its problems] Conventionally, TV image enlargement projection devices for viewing enlarged TV images on a screen are expensive devices that use a high-performance light source. In addition, as an LCD TV for this purpose, there is a laser S-incorporated type that uses an expanded LCD panel! The structure was complicated, large, and difficult to handle, and the power consumption was relatively large. Furthermore, it was extremely expensive, and it was not something that could be easily used at meetings or small parties.

The present invention improves on this situation in the prior art and uses an ordinary projector to effectively transmit various information to a large number of people using a large screen. To provide a liquid crystal television capable of enlarging and projecting television images, which can also be viewed directly at the original screen size, consumes little power, can be operated on dry batteries, and has a simple configuration. It is.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a liquid crystal television box body with a reflective mirror attached to its surface, and a liquid crystal television box body provided rotatably with respect to the liquid crystal television box body. , a panel box body provided with a transmissive LCD TV panel on the side facing the reflective mirror; A light diffusing plate that can be moved between the direct viewing position and a projection position evacuated from this position is inserted between the transparent! LCD TV panel and the light diffusing plate in the panel box, and the transparent LCD TV panel is This is a liquid crystal television that can be used to enlarge and project television images, and has an internally diffused light source that can be moved between an opposing usage position and a retracted position that is retracted from this position.

[Effect]

The TV image displayed on the transmissive LCD TV panel by external light or an internal light source can be viewed directly through the reflector while retaining the original screen size, and by moving the light diffuser to the projection position. If you apply a parallel beam of light to the top projector and direct it from the outside to the transparent LCD TV panel,
The TV image can be enlarged onto the desired screen.

In the case of the above-mentioned direct viewing, an internal diffused light source may be used when external light is not a problem.

〔Example〕

Referring to FIG. 1, a liquid crystal television according to an embodiment of the present invention will be described.

The LCD TV box body 1 that houses the required LCD TV drive circuit, etc. has a thin box shape with a stepped portion 1A.
．． A reflecting mirror 7 is attached to the surface of the lower part of the lower part.

A panel box 2 is rotatably provided at the end of the liquid crystal television box 1 opposite to the stepped portion 1A by means of a hinge shaft 21. The panel box 2 has a thin box shape with the same width as the LCD TV box 1. When folded by rotating it clockwise in FIG. Fill in the parts and combine as a whole! A well-known transmissive liquid crystal television panel 3 is provided on the side of the panel box 2 facing the opposite rFJ 17 of the liquid crystal television box 1. Parallel to the transmissive LCD television panel 3, a light diffusing plate 5, such as a milky-white glass plate or a plastic plate, is placed at a position facing the transmissive LCD television panel 3, as indicated by the broken line in the same figure. The transmissive liquid crystal television panel 3 is provided so that it can be moved in parallel in the direction of the arrow. Note that this movement is not a parallel movement, but may be other forms of movement, such as rotation.

The position where the light diffusing plate 5 faces the transmissive liquid crystal television panel 3 is the position where it diffuses external light and guides it to the transmissive liquid crystal television panel 3. At this time, a person can see the television m image of the liquid crystal television. Since it can be seen directly through the reflector 7, this position is directly pA12! Let's call it position.

Furthermore, in the position where the light diffusion plate 5 is retracted from the transmissive liquid crystal television panel 3, parallel light rays are guided from the outside to the transmissive liquid crystal television panel 3, and thereby the television image can be projected onto other screens, etc. The position will be named the projection position.

An internally diffused light source 4 is provided between the transmissive liquid crystal television panel 3 and the light diffusing plate 5. This is used when viewing the liquid crystal television directly when adequate external light is not available, such as at night, and a patterned light source that emits diffused light is preferable.

This internally diffused light FA4 can be used in a residential area facing the transmissive LCD TV panel 3 when appropriate external light is obtained or when parallel light beams are introduced from the outside to project a TV image. Since it is a 5-helmet, it can be moved in parallel in the direction of the arrow to move an amount of 1ffli to the retracted position.

In FIG. 1, reference numerals 6 and 8 indicate a television signal input terminal and an antenna, respectively.

The ways to directly view the LCD TV of this invention have been described in detail, both by using external light and by using the internal diffused light source 4. However, if you want to enlarge and project the TV image of this LCD TV, you can use the normal method. It can be used in combination with a so-called overhead projector, for example, as shown in FIGS. 2 and 3. To begin with, this projector will be briefly explained. In the figure, 9 is the projector body, and 11 is the projector body. The light source 12 is located behind the light source 11 and is shown on the upper surface of the projector body 9 showing a concave surface that converts the light R11 into parallel rays and sends it upward. The flange 1 to the panel lens 18 and the glass plate 17 are arranged as shown in FIG. The light shielding film is provided so as to be wound onto a take-up reel 16 .

An opening 10A is formed in the light shielding film 10, and when this opening 10.\\ is aligned with a transmissive liquid crystal television panel 3 of a liquid crystal television (to be described later), the parallel light from the light source 11 is yA. Super pear type LCD TV panel 33!!It's over.

A reflecting mirror 14 and a contrasting lens 15 are connected via an arm 13 extending from the projector body 9! ! I get kicked 9 times. This imaging lens 15 is the flat panel lens 1 mentioned earlier.
8, it functions to enlarge and project the television image on the transmissive liquid crystal television panel 3 onto the screen in front of it to form a V5 image.

The light shielding film 10 in this embodiment is provided to temporarily interrupt the projection of television images during a meeting or lecture.

It should be noted that in the example of combination use with a projector shown in FIGS. 2 and 3, the liquid crystal television box 1 and panel box 2 of the liquid crystal television are opened approximately 180 degrees.

In the liquid crystal television of this invention, the liquid crystal television box body 1 and the panel whistle body 2 are not opened 180 degrees like the above-mentioned 59 degrees,
It can be used even when opened at about 45 degrees. In the case of the projector shown in FIG. 4, the projector body 19 is formed with an inclined mounting surface 191 that is inclined at 45 degrees with respect to the horizontal, and the liquid crystal TV box body 1 of the liquid crystal television is mounted on this inclined surface 191.
Use it by leaning on 91. However, in this case, the light source 11 of the parallel light beam for projection is tilted a! In the direction of the horizontal groove facing the mounting surface 191, the parallel light rays from this light source 11 are changed direction twice by the reflecting mirror 7 of the LCD TV box 1 and the reflecting mirror 14 of this projector. .

Incidentally, the magnification and projection action of the imaging lens 15 and the flat panel lens 18 is the same as in the case of the Sagi embodiment.

Also, 1 projector and 20 dry batteries are shown in the 5th ward.
f: A small portable device that uses a power source. The operating style of this projector is almost the same as that explained in Figure 2, but the arm 22 that supports the head is a simple 4
It is in section link format. Note that the code 23 is 0
Shows N-OFF switch.

〔effect〕

According to the present invention, as described in detail above, the light diffusing plate moves directly between the viewing position and the projection position, so the light diffusing plate can be moved directly between the viewing position and the projection position. By positioning this and introducing diffused light into a transmissive LCD TV/LCD TV directly? ! At the same time, it is possible to retract the light diffuser plate to the projection position and apply a flat-light beam to the transmissive LCD TV panel. A liquid crystal TV box body equipped with an I2 reflector and a transmissive liquid crystal television panel attached! (Because the flannel frame body is rotatably connected, the optical path of the parallel light beam for I9 radiation is It can be used in combination with various types of projectors. ■It does not require the use of a particularly expensive LCD TV panel, and the overall configuration is simple. It also has the advantage of relatively low power consumption and can be operated on dry batteries. .

[Brief explanation of drawings]

Fig. 1 is a simplified side sectional view showing a liquid crystal television according to an embodiment of the present invention, Fig. 2 is a side sectional view showing an example of a combination of this liquid crystal television and a projector, and the third factor is a partially enlarged view of Fig. 2. Is this the side sectional view, Figure 4? ! ! FIG. 5 is a side sectional view showing a case where a crystal television and another type of projector are combined. FIG. 5 is a side sectional view showing a case where this liquid crystal television is applied to a portable small projector. 1...LCD TV c box, 2...Panel box, 3...-Transmissive LCD TV panel, 4...
・Internal diffused light source, 5...Light diffuser plate. Figure A Figure 2 Figure 3

Claims (1)

[Claims] 1. A liquid crystal television box body with a reflecting mirror attached to its surface; and a transmissive liquid crystal television panel provided rotatably with respect to the liquid crystal television box body, on a side facing the reflecting mirror. a panel box provided in the panel box; and a panel box provided in the panel box in parallel with the transmissive LCD television panel and moved between a direct viewing position facing the transmissive LCD television panel and a projection position evacuated from this position. a light diffusing plate provided between the transmissive liquid crystal television panel and the light diffusing plate of the panel box, and having a use position facing the transmissive liquid crystal television panel and a retracted position retracted from this position; A liquid crystal television that can be used to enlarge and project television images, and has an internal diffused light source that can move between the two. 2. The liquid crystal television for enlarging and projecting television images according to claim 1, wherein the panel box has a plurality of rotation angles set with respect to the liquid crystal television box.