JPH0553518A - Display device - Google Patents

Abstract

PURPOSE:To provide a display device which improves the stereoscopic effect of an image thereon, and simultaneously, whose stereoscopic effect is increased, without increasing the weight of the display device and cost. CONSTITUTION:An air layer 6 is provided between the image forming sheet 2 of lenticular plate 3 of the display device, and the image forming sheet 2 and the lenticular plate 3 face each other, and are connected so as to relatively move via a connecting tool. Therefore, the focal distances of each cut lens of the lenticular plate 3 are short, and the whole of the display device 1 is thinned. The lenticular plate 3 is made thin, so that the amount of formed resin is reduced and material cost can be reduced, as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying a stereoscopic image, which is used for advertisement, interior decoration, etc., using a lenticular plate.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a display device 1 of this type has an image forming sheet (for example, a color film or a printed matter, which is a sheet-like object on which an image synthesized for stereoscopic vision is formed). The lenticular plate 3 formed of a colorless and transparent resin such as PVC or PMMA is disposed on the lenticular plate 2. Usually, the thickness of the lenticular plate is formed so that the focal plane of the lens cut is almost coincident with the back surface of the lenticular plate itself. Are adhered or adhered.

[0003]

However, in the display device having the above-mentioned structure, when it is attempted to further improve the stereoscopic effect of the image, the thickness of the lenticular plate is increased, but the resin amount is increased. Therefore, there is a problem in that the weight is increased and the material cost is increased. If you try to change the stereoscopic image display again,
As described above, since the lenticular plate is integrated with the image forming sheet, the lenticular plate must be replaced, which is uneconomical.

In view of the above circumstances, the present invention aims to improve the stereoscopic effect of an image, increase the weight and raise the material cost, and separate the image forming sheet and the lenticular plate. It is an object of the present invention to provide a display device that facilitates the exchange of image forming sheets and has an improved three-dimensional effect.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems, in which an image forming sheet and a lenticular plate are arranged facing each other with an air layer interposed therebetween. It is an object of the present invention to provide a display device characterized in that an image forming sheet and a lenticular plate are connected to each other via a connecting tool so as to be capable of moving relative to each other.

[0006]

According to the present invention, the image forming sheet and the lenticular plate are separated by interposing the air layer, and the focal length of the lens cut in the lenticular plate is small, so that the total thickness of the display device is small. Then, by moving the lenticular plate and the image forming sheet relatively, one unit image element of the image forming sheet and the pitch of the lenticular are matched.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the embodiments shown in FIGS. The display device 1 is
An image forming sheet 2 and a lenticular plate 3 arranged in front of the image forming sheet 2 are mainly used, a light source 4 is provided on the back of the image forming sheet 2, and light is diffused between the image forming sheet 2 and the light source 4. Board 5 is placed,
The pattern on the image forming sheet 2 illuminated from the back side is provided so as to be irradiated forward.

An air layer 6 is interposed between the image forming sheet 2 and the lenticular plate 3. Further, as shown in FIG. 1, the image forming sheet 2 and the lenticular plate 3 are supported in a state that they are arranged inside a frame body 7 which is a connecting body and forms a part of the apparatus main body. The image forming sheet 2 and the lenticular plate 3, which are supported by, face each other in parallel. The respective edge edges of the image forming sheet 2 and the lenticular plate 3 are movably fitted into the concave grooves 70 formed on the inner peripheral surface of the frame body 7, and the image forming sheet 2 and the lenticular plate 3 are separated from each other. It is provided so as to be movable in the lateral direction (direction orthogonal to one lens cut). That is, they are provided so as to be movable relative to each other, and they may be fixed to the frame body, for example, after they are aligned in a factory. Further, as described above, instead of making both of them movable, one of them may be fixedly attached to the frame 7 and the other may be provided so as to be aligned with this. Further, the lenticular plate 3 may be fixed to the frame 7 so that the image forming sheet 2 can be replaced.

Since the air layer 6 is interposed as described above, the focal length of the lens cut becomes short, and the distance from the surface of the image forming sheet 2 to the surface of the lenticular plate 3 is made small to give a three-dimensional effect. The total thickness of the display device 1 is reduced in the improved state. For example, the radius of curvature of the lenticular plate 3 as a lens is 1.8 m.
m, the lens pitch is 0.3 mm, and the lenticular plate 3 is molded entirely of vinyl chloride resin (refractive index 1.53), the focal length (distance from the convex portion of the lens to the focal point) is 5.19 mm, The lenticular plate was molded with this value as the thickness. Here, if the lenticular plate is molded with a vinyl chloride resin smaller than this value, for example, 1.0 mm, the focal length becomes 3.72 mm.
That is, if the air layer is 2.72 mm, the lens is focused at a position 3.72 mm from the convex portion of the lens. An image forming sheet is arranged for stereoscopic viewing at this focal position. This image-forming sheet has 2
It is obtained from a linear composite film obtained by combining multiple images having parallax taken by a multi-view camera having the above lenses, or a parallel synthetic film formed by a rotation method.

A plurality of locking holes 8 are formed in the upper edge of the image forming sheet 2, and the locking holes 8 are releasably locked to a pin 9 provided on the apparatus main body side. hand,
When changing the display image, the image forming sheet 2 can be easily removed from the apparatus main body by removing the image forming sheet 2 from the pin 9. When the lenticular plate is fixed as described above, The movement of the locking hole can be adjusted for this pin (Note that this is not necessary if the locking hole is set in advance to match the pitch of the lenticular plate, and it can be locked to the pin. If the lenticular plate can be moved and adjusted, the lenticular plate is provided so as to be positioned by being hooked on the pin.

[0011]

As described above, according to the present invention,
In the display device, an air layer is interposed between the image forming sheet and the lenticular plate, and both of them are arranged face-to-face, and since the image forming sheet and the lenticular plate are connected so as to be relatively movable via a connecting member, The image forming sheet and the lenticular plate can be handled separately as separate parts, and the focal length of each lens cut of the lenticular plate can be shortened to reduce the total thickness of the display device. Is small, the amount of resin forming the resin is reduced, and the material cost can be reduced without increasing the weight, which is an excellent effect in practical use.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a main part of an embodiment of a display device of the present invention.

FIG. 2 is an explanatory diagram showing a positional relationship between an image forming sheet and a lenticular plate according to an embodiment.

FIG. 3 is an explanatory diagram schematically showing the configuration of one embodiment from the upper surface side.

FIG. 4 is an explanatory diagram showing an appearance of an example.

FIG. 5 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

 1 display device 2 image forming sheet 3 lenticular plate 4 light source 5 light diffusing plate 6 air layer 7 frame 8 locking hole 9 pin

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hirotake Tanabe 1-5-1, Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd.

Claims (3)

[Claims] 1. An image forming sheet and a lenticular plate are arranged so as to face each other with an air layer interposed therebetween, and the image forming sheet and the lenticular plate are connected so as to be relatively movable via a connecting tool. A display device characterized by. 2. The display device according to claim 1, wherein a light source is provided on the back of the image forming sheet, and a light diffusing plate is provided between the light source and the image forming sheet. 3. An engaging hole is formed in the image forming sheet,
The display device according to claim 1, wherein a pin that passes through the locking hole is provided on the device main body side.