Display device

Abstract

To provide a display device which makes a pattern on a clear holder stand out by lighting and allows it to be appreciated. [Solution] The device comprises a picture-frame-like frame 10 having a viewing window 10a, a light source 20 provided within the frame, and a light guide plate 30 configured to be detachable independently of the frame, the light guide plate 30 being held between clear holders 200 and stored in a storage space 10c within the frame 10. The light source 20 is provided in a position facing the upper end surface 30a of the light guide plate 30, and the emitted light passes through the light guide plate 30 to internally illuminate a picture P from the back side, allowing the picture P to be viewed through the viewing window 10a by internal illumination.

Description

[Technical Field]

[0001] This invention relates to a display device for viewing clear folders with designs. [Background technology]

[0002] Clear folders are widely used as stationery for storing and protecting documents. They are constructed from transparent or translucent synthetic resin sheets. One sheet is folded over and overlapped to form the front and back sheets. The left edge is the folded portion, which is closed, and the bottom edge is welded to close the front and back sheets. The right and top edges are open, allowing documents to be inserted and removed. The sheet material is made of thin, flexible materials such as polypropylene and polyethylene terephthalate. Clear folders are roughly rectangular and are sized to accommodate the paper they contain (e.g., A4 size). While the sheet material used for clear folders is generally plain, some clear folders feature designs such as portraits, landscapes, and fictional characters. While such clear folders are sometimes used not only as stationery but also as decorative items, no internally illuminated display device has been proposed to illuminate them and highlight the texture of the designs. Furthermore, conventionally, frames for displaying objects such as paintings and photographs that are equipped with lighting devices have been proposed (see, for example, Patent Document 1). Patent Document 1 discloses a configuration in which a lighting device is attached to the top of the frame, and the subject in the frame is illuminated from above and in front of it. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5667279 Summary of the Invention [Problem to be solved by the invention]

[0004] It is conceivable to apply a clear holder with a picture design to such a conventional picture frame. However, in conventional illuminated picture frames such as those described in Patent Document 1, light is directed from the front onto the surface of the design. Therefore, in clear holders made of thin, light-transmitting synthetic resin, frontal lighting diminishes the shading of the design, making it difficult to express the original texture, transparency, and sense of depth of the design, resulting in a poor presentation effect. Furthermore, the back of the clear holder often features the manufacturer's logo or text information, and if it is simply lit from above and in the front as with conventional picture frames, such logos and text information on the back may be visible, potentially detracting from the atmosphere of the design.

[0005] To provide a display device that enables a user to appreciate a pattern on a clear holder by lighting it, makes only the pattern on the clear holder stand out clearly, and enhances the presentation effect. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the display device of the present invention is a display device for viewing a pattern applied to a clear holder, and comprises a picture frame-like frame with a viewing window on the front, a light source provided within the frame, and a flat light guide plate that is detachably arranged within the frame independent of the frame, the light guide plate being sized to cover the viewing window, and a storage space provided within the frame in which the light guide plate is housed while sandwiched between the clear holder, the light source being located in a position facing the end face of the light guide plate when the light guide plate is housed in the storage space, and the light guide plate being housed within the storage space while sandwiched between the clear holder, so that the pattern applied to the clear holder can be viewed by internal lighting.

[0007] This allows the image on the clear holder to be internally illuminated through the light guide plate, and by illuminating the image from behind, it stands out clearly, enhancing the presentation effect and allowing for viewing. Furthermore, because the light guide plate is detachable, the clear holder can be easily replaced, allowing for the enjoyment of clear holders with different images. Internal illumination here refers to a lighting method in which light emitted from a light source illuminates the image from behind, and this lighting method makes the image stand out clearly, providing a vivid presentation effect.

[0008] The display device of the present invention has a slit on the side of the frame into which a light guide plate can be inserted, and the slit has an openable and closable cover, so that the light guide plate can be inserted through the slit and accommodated in the frame while being sandwiched between clear holders.

[0009] This allows the light guide plate and the clear holder to be smoothly inserted from the side, making it easy to replace the image. The openable lid also ensures that the container is securely held in place and prevents light from leaking out through the slits.

[0010] The display device according to the present invention may have a viewing window on the rear surface of the frame.

[0011] This allows viewing from both sides of the frame, so even if the clear holder has different designs on the front and back, it is possible to view it from both sides, expanding the range of viewing possibilities.

[0012] The display device of the present invention may further include a reflector or a light-shielding plate on the rear surface of the light guide plate.

[0013] According to this, when a reflector is used, the light from the back side of the light guide plate can be reflected to the front side, thereby increasing the lighting efficiency and making the image stand out more brightly for viewing.On the other hand, when a light shielding plate is used, it is possible to prevent light from leaking from the back side and to reliably prevent unnecessary information such as a logo mark on the back side of the clear holder from being seen. [Effects of the Invention]

[0014] The light from the light source can be used to illuminate the image on the clear holder through the light guide plate, and by illuminating the image from behind, the image stands out clearly, enhancing the dramatic effect and allowing for viewing. In addition, because the light guide plate is detachable, the clear holder can be easily replaced, allowing for the enjoyment of clear holders with different images. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic perspective view of a display device and a clear holder according to an embodiment of the present invention; [Figure 2] Enlarged cross-sectional view of II-II in Figure 1. [Figure 3] Enlarged cross-sectional view of III-III in Figure 1. [Figure 4] 1 is an explanatory diagram showing a state in which a display device according to an embodiment of the present invention is used; [Figure 5] 3 is a perspective view of a display device body according to another embodiment of the present invention; FIG. [Figure 6] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] 1 is a schematic perspective view of a display device 100 according to an embodiment of the present invention, along with a clear holder 200 with a pattern applied thereto. As can be seen in FIG. 1, the display device 100 according to this embodiment is composed of a display device main body 101, a flat rectangular light guide plate 30, and a cover 13.

[0017] The display device main body 101 is composed of a frame 10, an upper decorative cover 14 attached to the top of the frame 10, and a decorative stand 15 attached to the bottom of the frame 10 for supporting the display device main body 101. The frame 10 is in the shape of a picture frame with a viewing window 10a on the front, and a storage space 10c is provided within the frame 10. A slit 10d is provided on the side of the frame 10, and a light guide plate 30 can be inserted into the storage space 10c through this slit 10d while sandwiched between a clear holder 200. The slit 10d is equipped with an openable lid 13, which securely holds the light guide plate 30 and prevents light from leaking to the outside. A light source switch SW for turning on / off the light source 20 (described later) is provided on the upper decorative cover 14, allowing the user to easily operate it.

[0018] The light guide plate 50 is an optical component that takes in light emitted from the light source 20 (described later) from the end face of the light guide plate 30 and uniformly illuminates the entire light-emitting surface of the light guide plate 50. In this embodiment, a milky-white translucent resin plate (called a milky white resin) is used as the light guide plate 30, but the light guide plate is not limited to this, and a transparent or translucent resin plate made of acrylic, PVC (polyvinyl chloride), or the like that has been treated to scatter light can also be used. When the display device 100 is in use, the light guide plate 50 is stored in the storage space 10c while being sandwiched between the clear holder 200.

[0019] 1 also shows a clear holder 200 with a picture P printed thereon, along with the display device 100. The clear holder 200 has the picture P (a seascape in this embodiment) printed on a front sheet 200a. A semicircular cutout in the front sheet 200a allows the back sheet 200b to be seen. When the display device 100 is in use, the clear holder 200 is stored in the storage space 10c with the light guide plate 30 sandwiched therebetween.

[0020] FIG. 2 is an enlarged cross-sectional view taken along line II-II of FIG. 1 , illustrating the internal structure of the display device 100. The frame 10 includes a storage space 10c for accommodating the light guide plate 30. Specifically, the storage space 10c is a space behind the frame portion 10b of the frame 10. In this embodiment, the storage space 10c is a space surrounded by the frame portion 10b, a lower inner wall 10c1, a side inner wall 10c2, an upper inner wall 10c3, a closing portion 12, and a lid 13. The light source 20 is incorporated into the frame 10. Specifically, the light source 20 is disposed in a position facing the upper end surface 30a (see FIG. 1) of the light guide plate 30 when the light guide plate 50 and the clear holder 200 are housed in the storage space 10c. In this embodiment, the light source 20 is disposed on the upper inner wall 10c3 above the storage space 10c. In this embodiment, a 5-volt LED tape is used as the light source 20.

[0021] 2, the light source 20 is connected to a power jack E, a wiring C, and a light source switch SW, which control the operation of the light source 20. The power jack E is located on the rear surface of the frame 10 and faces the outside from the rear side of the makeup stand 15. In this embodiment, a USB Type-C is used as the power jack E, and it is compatible with an external power supply.

[0022] The light source switch SW is provided on the upper front side of the frame 10 and is exposed to the outside from the upper decorative cover 14. This allows the user to easily turn the power on and off. The power jack E, light source switch SW, and light source 20 are connected inside the frame 10 via wiring C. In this way, in this embodiment, the lighting device is made up of the power jack E, light source switch SW, and light source 20, and the lighting can be easily operated using the light source switch SW by using the power jack E to connect to an external power source.

[0023] FIG. 3 is an enlarged cross-sectional view taken along the line III-III in FIG. 1. Wiring C has been omitted from this figure. FIG. 3 clearly shows that the storage space 10c is a space provided on the back side of the frame portion 10b of the frame 10. The frame 10 has a slit 10d on its side. While FIG. 3 shows the frame 10 as a single unit, in actual manufacturing, the frame 10 is made up of two separate members, a front and a back, which are joined together and fitted into the upper decorative cover 14 and the decorative stand 15. This manufacturing method maintains the robustness of the display device 100 and facilitates assembly.

[0024] 4 is an explanatory diagram showing the display device 100 in use, specifically showing a state in which the light guide plate 30 sandwiched between the clear holder 200 is housed in the housing space 10c of the display device main body 101, the slit 10d is closed by the cover 13, and the image is visible through the viewing window 10a. Note that the light source 20, the light guide plate 30, and the clear holder 200 are shown by virtual lines, such as dashed lines or two-dot dashed lines, to explain the internal structure of the display device main body 101. In this state, the light guide plate blocks the viewing window 10a through the front sheet 200a of the clear holder 200, and its upper end surface 30a is positioned opposite the light source 20.

[0025] With the light guide plate 30 sandwiched between the clear holder 200 set in the display device 100 in this manner, the power cord (USB Type-C cord) from an external power source is connected to the power jack E, and the light source switch SW is turned on. This causes the light source 20, which is an LED tape, to emit light, which is introduced through the upper end surface 30a of the light guide plate 30, uniformly illuminating the entire light guide plate 50. The light emitted from the entire light guide plate 50 then illuminates the image P printed on the front sheet 200a of the clear holder 200 from the back side of the front sheet 200a, making the image P appear vivid, allowing the user to view the image P through the viewing window 10a. Because the light guide plate 30 is sized to cover the viewing window 10a, the light is diffused evenly throughout the viewing window 10a, making the image P appear vivid through the viewing window 10a.

[0026] FIG. 5 is a perspective view of a display device main body 101 according to another embodiment of the present invention. In the previously described embodiment, the rear surface of the frame 10 is closed by a blocking portion 12. In this embodiment, however, a rear-side viewing window 10e of a predetermined size is formed on the rear side of the frame 10, similar to the front side. This allows the display device 100 to be viewed from both sides. If a different design is printed on the back sheet 200b of the clear holder 200 than on the front sheet 200a, different designs can be viewed from each side, further enhancing the viewing experience. Note that even in this case, the light guide plate 30 is large enough to cover the rear-side viewing window 10e. In this case, the storage space 10c is the space surrounded by the frame portion 10b, lower inner wall 10c1, side inner wall 10c2, upper inner wall 10c3, and rear frame portion 10f of the frame 10, as well as the lid 13.

[0027] FIG. 6 is a perspective view of the light guide plate 30 and the light blocking plate 31. As a variation of each of the above embodiments, a light blocking plate 31 may be provided on the back surface of the light guide plate 30, as shown in FIG. 6. This configuration effectively blocks light leaking backward from the light guide plate 30 (toward the rear of the display device). The light blocking plate 31 is made of an opaque material and can prevent logos and unnecessary information printed on the back sheet 200b of the clear holder 200 from being visible. The light blocking plate 31 may be made of a thin sheet material, such as a plastic sheet or metal foil, or may be made of a plate material with a certain thickness. It may be attached by simply adhering it to the back surface of the light guide plate 30, or may be fixed with an adhesive or glue as needed. As another variation, a reflector may be used instead of the light blocking plate 31. The reflector can reflect light directed toward the back surface of the light guide plate 30 toward the front surface, improving light guide efficiency and making the image P appear brighter and more clearly.

[0028] In the above-described embodiments, a slit 10d is formed on the side surface of the frame 10, and the light guide plate 30 sandwiched between the clear holders 200 is inserted into the storage space 10c through the slit. However, this is not limiting. For example, the side surface of the frame 10 may have an inner wall (a side inner wall (not shown) opposite the side inner wall 10c2) instead of a slit, and the rear surface may be open, allowing the light guide plate 30 and the clear holder 200 to be inserted into the storage space 10c from the rear surface. In this case, the storage space 10c is a space surrounded by the frame portion 10b provided on the frame 10, the lower inner wall 10c1, the side inner wall 10c2, the upper inner wall 10c3, and the side inner wall (not shown) opposite the side inner wall 10c2. The light guide plate 30 and the clear holder 200 can be easily and reliably secured by using a back fastener commonly used in picture frames. [Explanation of symbols]

[0029] 10 frames 10a Viewing window 10b Frame 10c storage space 10c1 Lower inner wall 10c2 Side inner wall 10c3 Upper inner wall 10d slit 10e Rear viewing window 10f Rear frame 12 Occlusion 13 Lid 14 Upper decorative cover 15 Makeup stand 20 light source 30 Light guide plate 30a Upper end surface 31 Shade 100 Display device 101 Display device body 200 Clear Folders C wiring E Power Jack P design SW Light source switch

Claims

1. A display device for viewing a design on a clear holder, The light source includes a picture frame-like frame having a viewing window on the front side, a light source provided within the frame, and a flat light guide plate that is detachably disposed within the frame, independent of the frame; the light guide plate has a size that closes the observation window, a storage space is provided within the frame in which the light guide plate is stored while being sandwiched between a clear holder; the light source is provided at a position facing an end surface of the light guide plate when the light guide plate is accommodated in the accommodation space; This display device is characterized in that the light guide plate is sandwiched between clear holders and stored in a storage space, so that the pattern on the clear holder can be viewed by internal lighting.

2. 10. The display device according to claim 1, a slit into which a light guide plate can be inserted is provided on a side surface of the frame, and an openable / closable lid is provided on the slit; The display device can be housed in the frame by inserting the light guide plate sandwiched between the clear holders through the slit.

3. 3. The display device according to claim 1, A display device with a viewing window on the back of the frame.

4. 3. The display device according to claim 1, A display device in which a reflector or a light-shielding plate is provided on the rear surface of the light guide plate.

Images