JPH0642127B2 - Projection display device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal projector, and more particularly, to a device for providing an amenity space (audio / video space) for individuals by combining with a chair equipped with an audio speaker. It is a thing.

2. Description of the Related Art As a means for a viewer to enjoy sound and images, a CRT in which a user sits on a chair in which an acoustic speaker is embedded, wears headphones on his / her head, and is placed at a predetermined distance in front of the chair.
There is a method of viewing the type TV receiver.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-mentioned means, a large TV is required to obtain a large screen power, and the installation place becomes large.
There is a problem that the cost is high.

In view of the above problems, the present invention aims to provide a projection type display device that can effectively utilize a limited space and can enjoy music and images at low cost.

Means for Solving the Problems In order to solve the above problems, the present invention comprises a chair having an acoustic speaker and a screen and a liquid crystal projector attached thereto.

Action With the above configuration, it is possible to provide a compact device in which a powerful image and sound are integrated. Therefore, the compactly constructed device is easy to carry, does not occupy space, and has a low total cost.

Embodiment Hereinafter, an explanation will be given based on the drawings shown as one embodiment.

FIG. 1 is a schematic side view conceptually showing the structure of the device of the present invention. FIG. 1 shows a state in which a viewer (13) is seated on a chair (10) having a backrest and the back and head are leaned against the chair.

A light-shielding hood (9) for blocking the visual field from the outside is arranged on the back of the chair (10) in a predetermined manner. In the embodiment of the present invention, the light-shielding hood (10) has, for example, a substantially rectangular shape, and has a shape in which four surfaces except the face side and the neck side are closed.
As long as the viewer's head and chest are shielded from the outside world, the outer shape of the light-shielding hood may be arbitrary.

A wide reflective screen (7) having a predetermined curvature is arranged at a predetermined position in front of the light-shielding hood (10), that is, at a predetermined position in front of the viewer's (13) face. The reflective screen (7) is configured to be rotatable about the support shaft (8) in the arrow R direction up to the position indicated by the chain double-dashed line. That is, when the viewer (13) hangs on the chair (10) or stands, the screen (7) is raised to the position of the chain double-dashed line,
Care is taken not to disturb the operation of the viewer (13).

The reflection type screen (7) is formed by laminating FRP (glass fiber reinforced plastic) and Al metal foil and molding into a desired curved surface shape, and in the embodiment of the present invention, the screen gain GS is set to about 7 to 15. The screen size was configured to 20-30. It goes without saying that any means may be used as the method of constructing the screen (7), for example, a resin molding material other than FRP or a means such as laminating an Al metal foil on a sheet-like cloth fiber, vapor deposition, printing or the like. Good.

The screen gain value may also be selected in a predetermined manner in relation to the projection device and the projection image quality, which will be described later.

A projector device (30) is arranged at a predetermined position above the back of the head of the viewer (13).

In the embodiment of the present invention, the metal fitting (14) is provided on the upper part of the backrest of the chair (10).
Has been deployed.

As a matter of course, the projection image from the projector device (30) is displayed at a predetermined position on the screen (7), and the viewer can view the image as indicated by the thin line arrow indicating the optical path.

The details of the projector device (30) are shown in FIG. Light emitted from the lamp light source (2) such as halogen or metal halide is collected at the focal point F by the cylindrical elliptical mirror (3),
After passing through the infrared absorption filter (4), condenser lens (5)
The luminous flux is collimated by the color LCD panel (1)
Incident on. The elliptical mirror (3) is made of a cold mirror and allows infrared rays to pass therethrough, so that heat is hardly transmitted to the color liquid crystal panel (1) together with the filter (4).

The color liquid crystal panel (1) includes a transparent glass substrate on which an array is formed by using an amorphous silicon thin film transistor (TFT) as a switching element, R (red), and G.
Display is performed in a twisted nematic (TN) mode in which liquid crystal is sealed between a transparent glass substrate on which (green) and B (blue) color filters are formed. The liquid crystal cell has a function of an optical shutter that transmits incident light when a predetermined voltage is applied.

The light transmitted through the liquid crystal panel (1) is projected on the screen (7) in a predetermined enlarged manner by the projection lens (6).
The projector device (30) together with the color liquid crystal panel (1)
It also has a television receiver circuit and a signal monitor function circuit for an optical disc, a video, and the like.

In the chair (10), in addition to the above-mentioned components, a plurality of transducers (12) for converting deep bass of 120 Hz or less into mechanical vibration are embedded. For example, the back, thigh, calf, etc. are arranged in a predetermined manner so as to conduct an acoustic signal.

Furthermore, an acoustic speaker (11) is provided so that it is located above the backrest near both sides of the viewer's head, and the acoustic signals of the television receiver or various monitors can be heard in stereo.

Not only the speaker but also the headphones can be used.

EFFECTS OF THE INVENTION The projection type display device configured as described above can provide wide and powerful images and sound in the space surrounded by the light-shielding hood and the screen, and can easily and effectively limit the personal amenity space. It is possible to create it in the designated space (it is enough if there is a space to put a chair).

In addition, the screen and the liquid crystal projector have the effect of being smaller and cheaper than a large television.

[Brief description of drawings]

FIG. 1 is a side view showing a configuration concept of a projection type display device in an embodiment of the present invention, and FIG. 2 is a principle configuration diagram of a projector device constituting the device of the present invention. 1 ... Color liquid crystal panel, 2 ... Light source, 3 ... Elliptical mirror, 4 ... Infrared cut filter, 5 ... Condenser lens, 6 ... Projection lens, 7 ... Screen, 8 ... Support shaft, 9 ... … Shading hood, 10… Chair, 11… Speaker, 12… Transducer, 13… Viewer, 14… Metal fittings.

Front page continuation (72) Inventor Sakae Ariga 1006 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. Person Keisuke Yamamoto 1006 Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] 1. A chair, a light-shielding hood disposed above a backrest of the chair, a reflective screen rotatably disposed on the chair or the light-shielding hood, and a liquid crystal projector for enlarging and projecting an image on the reflective screen. Consists of
The liquid crystal projector comprises a transmissive liquid crystal display panel, a light source and a condensing optical system arranged behind the liquid crystal display panel, and a projection lens arranged in front of the liquid crystal display panel. Projection type display device. 2. The projection type display device according to claim 1, wherein an acoustic speaker or headphones are provided in the light shielding hood. 3. A projection type display device according to claim 2, wherein a transducer for transmitting deep bass is arranged on the back surface of the chair. 4. The projection type display device according to claim 1, wherein the reflection type screen is an FRP molded body laminated with Al foil. .