JPH0712077Y2 - Self-supporting double-sided display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a self-supporting double-sided display device.

[Conventional technology]

As this type of display device, for example, a semi-transparent diffusion panel is provided on the front side of many fluorescent lamps installed vertically or horizontally,
A direct type in which a light-transmissive positive image film is arranged in a laminated state on the diffusion panel to perform back lighting.
Alternatively, for example, a brilliant panel is provided between a pair of opposed fluorescent lamps, and a light-transmissive positive image film is also laminated on the brilliant panel, and the brilliant panel is illuminated by the incident light from the fluorescent lamp to the incident end surface of the brilliant panel. An edge-light type is known in which secondary illumination is performed and the back lighting is performed.
For example, one side frame of the frame can be attached and detached with a screw, and after inserting the positive image film, a transparent panel is slid and inserted from the one side frame side so as to be positioned on the front side with the positive image film. It is supposed to be carried out by sandwiching a positive image film between the diffusion panel or the bright panel.

[Problems to be solved by the device]

However, in this case, in order to replace the positive image film, it is necessary to remove the side frame by operating the screw, slide in the positive image film or the transparent panel, and reinstall the side frame by operating the screw. In the case of a display device in which the positive image film is frequently exchanged, the exchange work is complicated, and the slight clearance for sliding the transparent panel into place causes a gap between the diffusion panel or the bright panel and the transparent panel. However, there is a problem in that even a slight amount of voids is generated, and the sandwiching with respect to the positive image film is insufficient, and this tends to be loosened or misaligned, and the display effect may be impaired.

The present invention has been made in view of such circumstances, and the problem to be solved is to use the above-mentioned edge light type which can be relatively thinly configured, and to provide a display device having self-sustainability and double-sided illumination. It is an object of the present invention to provide a self-supporting double-sided display device that can easily sandwich a positive image film while allowing the image film to be replaced very easily.

[Means for Solving the Problems]

In view of the above problems, according to the present invention, when the bright panels are mounted back to back on a frame-shaped self-supporting frame, a plurality of end portions on the non-incidence end face side are fitted and held, and front and rear projection fins are extended in the inward frame direction. While using a steel U-shaped panel holding frame having the above, it is fitted to a self-supporting frame, and at the same time, a transparent panel corresponding to the overhang fins and having a magnetic material forming a magnetically adhered portion on the back surface is provided. By using this, by sandwiching a positive image film of the same size as the transparent panel, the exchange is facilitated and the sandwiching property of the positive image film is ensured, that is, the present invention claims. Reference numeral 1 denotes a frame-shaped self-supporting frame and a plurality of non-incident end face side end portions of front and rear bright panels arranged in a back-to-back manner are fitted to hold the front and rear bright panels in the self-supporting frame. A steel U-shaped panel holding frame fitted to the non-light source side plural frame portions and protruding and projecting front and rear overhanging fins in the in-plane direction of the plurality of frame portions, and the front and rear overhanging fins and the magnetically adhering portions. A transparent panel before and after sandwiching a light-transmissive positive image film of the same size with strip-shaped or dot-shaped magnetic materials facing the overhanging fins on the front and rear sides so as to form the plurality of backside edges. The present invention relates to a self-supporting double-sided display device which is a feature of the invention, and as a gist of the invention, it is a means for solving the above-mentioned problems. By providing a magnetic material corresponding to this, the ease of replacement is maintained and the sandwiching property of the positive image film is further improved. The front and rear thin plates made of steel, which are adhered to the front and rear inner sides of the frame portion on the light source side of the remaining ram and projecting protruding fins respectively in the in-plane direction, are additionally provided and the respective protruding fins and magnetically bonded portions are formed. 2. The self-supporting double-sided display device according to claim 1, further comprising a strip-shaped or dot-shaped magnetic material facing the front and rear overhanging fins, which is additionally provided at an end corresponding to the back surface of the transparent panel. The gist of the invention is also the means for solving the above problems.

〔Example〕

The present invention will be described in more detail with reference to the drawings showing the following embodiments. 1 is an edge light type self-supporting double-sided display device, 2 is a self-supporting frame, 12 is a panel holding frame, 25 is a thin plate, 28, 29
Is a bright panel, 31 is a front and rear transparent panel, and 36 is a front and rear positive image film which are light-transmissive.

The self-supporting frame 2 has a frame shape, and in this example, the upper, lower, left, and right frame portions 3, 4, 17, and 18 are framed into a rectangular frame shape, and a series of fitting grooves 11 are opened in the inner periphery thereof. Hollow part 14,27
In addition, self-supporting legs 39 are attached to both ends of the lower frame portion 4 in the longitudinal direction so as to have self-supporting property.

Each frame part 3, 4, 17, 18 of this example is configured by butt-joining frame constituent members 5, 19, 20 made of synthetic resin extruded material as split molds, and at this time, the fitting groove 11 While the hollow portions 14 and 27 are wide so that the inverter 38 is built in the upper and lower frame portions 3 and 4, and the left and right frame portions 17 and 1 are
In Fig. 8, the light sources 37 of the fluorescent lamps are narrowed so as to be built therein.

The panel holding frame 12 of this example is a fitting groove for the self-supporting frame 2.
Bright panel 28,2 corresponding to 11 and arranged as described below
9 is a thin grooved steel plate having a U-shaped deep groove having a width dimension substantially corresponding to the total thickness of 9, and the panel holding frame 12 has a plurality of end portions on the non-incident end face side of the bright panels 28, 29.
That is, the upper and lower end portions of the inverter 38 side are fitted and are fitted to the plurality of non-light source side frame portions of the self-supporting frame 2, that is, the upper and lower frame portions 3 and 4 via the fitting grooves 11, and at this time, The front end side of the panel holding frame 12 is formed so as to project and project forward and backward in the in-plane direction of the upper and lower frame portions 3 and 4 to form a projecting fin 33.

The thin plate 25 is made of steel having the same thickness as that of the panel holding frame 12, and is adhered to the remaining light source 37 side frame portion of the self-standing frame 2, that is, the front and rear inner sides of the left and right frame portions 17 and 18 to be self-supporting frame. It is fixed to No. 2 and at this time, similarly, the tip end side is projected and projected in the in-plane direction of the left and right frame portions 17 and 18 to form the overhang fin 33.

For the bright panels 28 and 29, for example, a 3 mm-thick acrylic transparent plate on the back side of which fine dots of varying density are provided for irregular reflection by printing of milk-white ink (not shown) is used, and these are arranged in the back-to-back shape. At this time, in the present example, a reflective milky white film (not shown) is provided in the center, and acrylic transparent plates 30 are also provided on the respective bright panels 28, 29 side of the bright panel 28, On the other hand, a milky white film (not shown) for diffusing the secondary illumination by the bright panels 28 and 29 is laminated and arranged on the surface, while the bright panel by the panel holding frame 12 is arranged.
The fitting of 28 and 29 is designed to hold them together.

The transparent panel 31 is also made of an acrylic transparent plate having a high transparency, for example, a thickness of 2 mm.
The belt-shaped rubber magnet is adhered to the end face of the rear surface in accordance with the in-plane dimension of the steel sheet so as to form a series of outer peripheries, and the rubber magnet is used to extend the fins of the steel panel holding frame 12 and the thin plate 25. There is a magnetic portion 34 facing the 33 and forming a magnetically attached portion 32 with the magnetic portion 34, so that the transparent panel 31 can be freely attached to and detached from the self-standing frame 2.

The positive image film 36 is made of a light-transmissive material for advertisement and has the same shape and size as the transparent panel 31. Therefore, the positive image film 36 is used for each bright panel 28,2.
9, To be precise, it is laminated on the milky white film on the surface side,
If the transparent panels 28 and 29 are arranged on the front surface side, the transparent panel 31 is adsorbed and fixed to the overhang fin 33 of the self-supporting frame 2 by the magnetically adhering portion 32, while the overhang fin 33 and the magnetic portion are arranged.
The outer peripheral edge portion of the positive image film 36 is interposed between the 34, whereby the positive image film 36 is sandwiched by the transparent panel 31 in an extremely stable state.

In the edge light type display device 1 of this example, the positive image film 36 can be exchanged very easily by attaching / detaching the transparent panel 31, while the positive image film 36 is securely sandwiched to have self-supporting property. However, it has a thin self-supporting double-sided property in which the positive image film 36 is back-illuminated on both sides thereof.

In the figure, 6 is a groove for inserting a frame piece, 9 and 10 are receiving grooves for fitting the end caps 15 of the upper and lower frame portions 3 and 4, 16 is a screw, and 21 is a frame structure in the left and right frame members 17 and 18. Material 19,20 Side piece, 22
Is a projecting piece on the butt joint side, 23 is a step for butt joint, and 26 is a screw.

Although the illustrated example is as described above, the transparent panel can be freely opened and closed with respect to the self-supporting frame, the magnetic material is provided on the back surface of the transparent panel in a dot shape, and the magnetic material and the magnetic powder are arranged. In carrying out the present invention, including the above,
The specific shape, structure, material, etc. can be changed without departing from the gist of the invention.

[Effect of device]

According to claim 1 of the present invention, a frame-shaped self-supporting frame and a plurality of non-incident end face side end portions of front and rear bright panels arranged in a back-to-back manner are fitted to hold the front and rear bright panels in the self-supporting frame. To the non-light source side frame portions of the self-supporting frame, and front and rear overhanging fins protruding in the in-plane direction of the plurality of frame portions. And a transparent panel before and after sandwiching a light-transmissive positive image film of the same size with strip-shaped or dot-shaped magnetic material provided on the back surface at multiple ends so as to face the overhanging fins on the front and rear so as to form a magnetically bonded portion. Therefore, the front and rear bright panels, which are arranged back to back on the self-supporting frame, can be held stably and comfortably by the steel U-shaped panel holding frame. In panel holding frame Magnetic material projecting fins and the transparent panel forms a magnetically attached portion after the positive image film of the transparent panel isomorphic isometric, since the transparent panel will pinched,
It is possible to provide a self-supporting double-sided display device that is thinly configured as an edge light type in which a positive image film can be exchanged very easily by opening / closing or attaching / detaching a transparent panel, and the positive image film can be reliably sandwiched. .

According to claim 2 of the present invention, the front and rear thin plates made of steel are adhered to the front and rear inner sides of the remaining light source side frame of the self-supporting frame, and the front and rear thin plates are additionally provided with projecting fins in the in-plane direction. It is characterized in that a strip-shaped or dot-shaped magnetic material facing the overhanging fins before and after the overhanging fins and the magnetically adhering portions is additionally provided at the end corresponding to the back surface of the transparent panel. In addition to the above, the self-supporting double-sided display device can be more surely sandwiched without damaging the exchangeability of the positive image film.

[Brief description of drawings]

The drawings show the embodiments, FIG. 1 is a perspective view of the display device, FIG. 2 is a longitudinal sectional view of the display device taken along the line AA in FIG. 1, and FIG. 3 is the same as FIG. 1B-B. FIG. 5 is a cross-sectional view of the display device along the line. 1 ... Display device, 32 ... Magnetic part 2 ... Standing frame, 33 ... Overhang fin 12 ... Panel holding frame, 34 ... Magnetic material 25 ... Thin plate, 36 ... Positive image film 28,29 ... … Bright panel, 37… Light source 31… Transparent panel

Claims (2)

[Scope of utility model registration request] 1. A frame-shaped self-supporting frame and a plurality of non-incident end face side end portions of front and rear shiny panels arranged back to back are fitted so that the front and rear shiny panels are held in the self-supporting frame. A steel U-shaped panel holding frame that is fitted to a plurality of non-light source side frame portions of a self-supporting frame and has projecting front and rear overhanging fins protruding in the in-plane direction of the plurality of frame parts, and the front and rear overhanging fins and magnets. It is provided with a transparent panel before and after sandwiching a light-transmissive positive image film of the same size with strip-shaped or dot-shaped magnetic materials facing the overhanging fins on the front and rear sides so as to form the attachment portion, provided on the back surface at plural end portions. A self-supporting double-sided display device characterized in that 2. The front and rear thin plates made of steel which are adhered to the front and rear inner sides of the remaining light source side frame portion of the self-supporting frame, and projecting projections are respectively projected in the in-plane direction thereof, and the projecting fins are additionally provided. 2. The self-supporting double-sided surface according to claim 1, further comprising a strip-shaped or dot-shaped magnetic material facing the overhanging fins at the front and rear so as to form a magnetically adhering portion at the end corresponding to the back surface of the transparent panel. Display device.