JP4137511B2 - Display panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display panel, and in particular, can transmit information without deteriorating aesthetics and without changing the sticker, and further has an appeal degree, and changes provided information to various colors. It is related with the display panel provided with the interesting that it can do.
[0002]
[Prior art]
The vending machines installed near the entrance of the store, near the sidewalk, etc. are located in front of the exhibition space where samples of canned beverages to be sold (samples made of plastic dummy, empty cans, etc.) and photos are displayed. Provided. And at night, illuminate the fluorescent lamps and illuminate samples (product samples) and photos, and devise so that users can know the vending machines are installed and the contents of the products sold. Yes.
[0003]
By the way, in a vending machine, when a product whose sales are not increasing is replaced with a popular product, or when a new product is released, it is replaced with another product. Newly released products and products targeted for campaigns need to be differentiated from other products to make an appeal.
[0004]
In such a case, the conventional display method is to stick a sticker with characters such as “New Release”, “New Product”, “In Campaign”, or a sticker with a specific design on the sample. (1st method), or a special place where new products to be released and campaign items are placed in advance, and a large number of red LEDs are placed around the LED. Were lit in order or flashed all at once to appeal that they were newly released products or campaign targets (second method).
[0005]
[Problems to be solved by the invention]
However, the first conventional method may impair the aesthetic appearance when the seal is peeled off. Furthermore, it is necessary to replace the sticker every time the product is replaced, which requires human labor. Further, the second conventional method has a certain degree of appeal, but lacks interest due to a certain color.
[0006]
Therefore, an object of the present invention is to transmit information without deteriorating the aesthetics and without changing the seal, and further, there is an appeal degree, and the information to be provided can be changed into various colors. The object is to provide a display panel having such an interesting taste.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a transparent or translucent light guide member that propagates light introduced to one end face to the other end face while totally reflecting the light on the side face, and the other end face side of the light guide member. A display unit that is formed with a predetermined pattern on the side surface thereof and generates diffuse reflection light upon receiving light, and the diffused light is introduced from the display unit by introducing the light into the one end surface of the light guide member. A light source to be generated and a protective cover that covers the light source and a circuit component for causing the light source to emit light, and a sub-panel is formed on the front surface of the sample table provided in the exhibition space between the main door of the vending machine and the transparent panel Then, a display panel is provided in which a lower portion of the light guide member including the protective cover is inserted and fixed in a concave groove formed in the sub panel.
[0008]
According to this configuration, when the incident light travels through the light guide member and reaches the display unit having a predetermined pattern, characters and pictures can be irregularly reflected according to the shape of the pattern formed on the light guide member. Therefore, it is possible to visually recognize the pattern from the direction in which irregular reflection occurs.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of a display panel according to the present invention, showing an example of use as a product sample display panel of a vending machine.
[0010]
The vending machine 1 automatically sells various types of beverages (cans, bottled bottles, or cups) such as coffee, cola, juice, oolong tea, etc. according to the input of coins and banknotes, and a large number of products inside. Stock. The vending machine 1 has a substantially box-shaped vending machine body 2 as a casing, and a main door 3 serving as a front panel is provided on the front surface of the vending machine body 2. The main door 3 can be opened and closed because it is hinged to the front surface of the vending machine main body 2, and is opened and closed at the time of sample exchange, product replenishment, product exchange, and the like.
[0011]
The main door 3 is provided with a transparent panel 31 as a front cover, and an exhibition space 32 is secured inside thereof. In the exhibition space 32, sample stands 33 are provided in three stages in the vertical direction, and a sample 4 as a product sample is placed on each sample stand 33. Above each sample stage 33, a fluorescent lamp 34 for irradiating light to the sample 4 is disposed, and a reflective cover 35 is provided so that the light does not enter the eyes of the user (product purchaser). A display panel 100 for explaining the sample is arranged in front of the sample 4.
[0012]
The front surface of the sample table 33 is provided with a sub-panel 5 displaying the type of product (COLD, HOT, etc.), price, etc., and the transparent panel 31 is provided with a selection button 6 (push button) for selecting a product. It has been. The main door 3 has a bill insertion slot 7 for inserting bills, a coin insertion slot 8 for inserting coins, a return lever 9 for returning inserted bills and inserted coins, a change return port 10 for returning change, and change A display 11 for displaying the cut and the amount of money to be inserted, a product sales port 12 for taking out the product, and a door lock 13 for locking the opening operation of the main door 3 by locking are provided.
[0013]
For example, in the vending machine 1, the display panel 100 is replaced with a hot selling product or a new product is released. However, when the new product is released, the display panel 100 is newly released. It is used when a product or a product targeted for a campaign needs to be differentiated from other products to make an appeal.
[0014]
2 is a partially cutaway view of the main part of the vending machine 1 of FIG. 1, FIG. 3 is a view showing a display panel 100, (a) is a longitudinal sectional view of FIG. 3 is a schematic diagram of a display panel 100. FIG.
[0015]
The display panel 100 is formed of a transparent or translucent acrylic resin, and a light guide plate 101 that propagates light introduced to one end face to the other end face while totally reflecting the light on two opposite faces, and adheres to the light guide plate 101. A character sheet 103 attached by a tape 102, an RGB (Red-Green-Blue) LED (light emitting diode) lamp 51 mounted on a substrate 104 formed at the lower end of the light guide plate 101 and irradiating light to the light guide plate 101; A circuit component 106 such as a resistor or a capacitor, which is a driving component for causing the RGBLED lamp 51 to emit light, and a protective cover 107 covering the substrate 104, the RGBLED lamp 51 and the circuit component 106. Here, as described later, the RGBLED lamp 51 has a light emitting surface facing upward so that light travels into the upper light guide plate 101. The power supply for the light emission of the RGBLED lamp 51 and the control signal for controlling the light emission color, the light emission interval, and the like of the RGBLED lamp 51 are supplied by the electric wire 108.
[0016]
The display panel 100 includes a protective cover 107 in a recessed groove 40 formed by the sub-panel 5 provided on the front surface of the sample table 33 formed in the display space 32 between the main door 3 and the transparent panel 31. The lower part is inserted and fixed at an appropriate position of the sub-panel 5 by the magnet 110.
[0017]
FIG. 4 shows an example of the RGBLED lamp 51 used in the explanation panel 100, where (a) is a perspective view seen from the front side, and (b) is a view seen from the back side. The RGB LED lamp 51 is a side-emitting LED lamp. The RGB LED lamp 51 includes an LED element mounting substrate 52, a red LED element 55R, a green LED element 55G, and a green LED element 55G arranged in a line in a direction perpendicular to the end surface 52c on the surface 52a of the LED element mounting substrate 52. A convex lens that seals the blue LED element 55B and the LED elements 55R, 55G, and 55B and shapes the emitted light of the LED elements 55R, 55G, and 55B into light having a predetermined divergence angle (see FIG. Indicated by a dotted line in a).
[0018]
The LED element mounting substrate 52 is made of a material having high heat resistance, for example, glass epoxy resin or alumina, and a common electrode 53C, a red electrode 53R, a green electrode 53G, and a blue electrode 53B are formed on the surface 52a. The back surface 52b has a red electrode 53R connected to the red electrode 53R, the green electrode 53G and the blue electrode 53B on the front surface 52a by a through-hole plating 54, as shown in FIG. An electrode 53G and a blue electrode 53B are formed. The common electrode 53C on the front surface 52a and the green electrode 53G, the red electrode 53R, and the blue electrode 53B on the back surface 52b extend to the edge of the end surface 52c in order to facilitate mounting on the substrate 104. The LED element mounting substrate 52 preferably has a surface 52a having a high light reflectance with respect to all of the emission wavelengths of the LED elements 55R, 55G, and 55B, for example, a white one. Thereby, since the light emission efficiency is increased, the power can be reduced. Reference numeral 52e denotes an upper surface of the substrate 52, and 52d denotes a side surface of the substrate 52.
[0019]
The red LED element 55R emits red light having a dominant emission wavelength of about 600 to 700 nm. For example, the red LED element 55R is made of an InGaAlP (indium / gallium / aluminum / phosphorus) -based semiconductor, 1 electrode and a second electrode on the lower surface. In the red LED element 55R, the first electrode on the upper surface is electrically connected to the red electrode 53R by the bonding wire 56, and the second electrode on the lower surface is electrically and mechanically connected to the common electrode 53C by the conductive adhesive. It is connected to the.
[0020]
The green LED element 55G emits green light having a dominant emission wavelength of about 510 to 580 nm. For example, the green LED element 55G is made of a GaN (gallium nitride) based semiconductor and has a first electrode and a first electrode on the upper surface. Two electrodes are provided. The lower surface of the green LED element 55G is mechanically connected to the common electrode 53C by an adhesive, the first electrode is electrically connected to the green electrode 53G by the bonding wire 56, and the second electrode is bonded to the bonding wire 56. Is electrically connected to the common electrode 53C.
[0021]
The blue LED element 55B emits blue light having a dominant emission wavelength of about 420 to 505 nm. For example, the blue LED element 55B is made of a GaN (gallium nitride) semiconductor, and has a first electrode and a first electrode on the upper surface. Two electrodes are provided. The lower surface of the blue LED element 55B is mechanically connected to the common electrode 53C by an adhesive, the first electrode is electrically connected to the blue electrode 53B by the bonding wire 56, and the second electrode is bonded to the bonding wire 56. Is electrically connected to the common electrode 53C.
[0022]
The convex lens 57 has a semi-cylindrical shape composed of a transparent epoxy resin or a semi-transparent epoxy resin blended with a filler having a light diffusion effect, and the LED elements 55R are parallel to the end face 52c. , 55G, 55B have the same directivity characteristics. The convex lens 57 has a focal point behind the light emitting surfaces of the LED elements 55R, 55G, and 55B. Thereby, the emitted light of each LED element 55R, 55G, 55B can be diffused and emitted. In addition, when the light of a narrow angle is required, what has the focus of the convex lens 57 ahead of the light emission surface of each LED element 55R, 55G, 55B should just be used.
[0023]
FIG. 5 shows a circuit configuration. As shown in the figure, the LED lamp 51 has a four-terminal configuration in which one end of each of the LED elements 55R, 55G, and 55B is a common terminal. That is, the anode of each LED element 55R, 55G, 55B is connected to the common terminal 65C, and the cathode of each LED element 55R, 55G, 55B is connected to the terminal 65G, 65R, 65B, respectively. Each LED element 55R, 55G, and 55B can emit light in white, monocolor, or full color by simultaneously emitting light, separately emitting light, or combining the two to emit light.
[0024]
FIG. 6 is a diagram illustrating a light emission mechanism of the display panel 100. The light emitted by the RGB LED lamp 51 travels upward in the drawing with the boundary surface with the air of the light guide plate 101 as a reflection surface. In a portion where the character sheet 103 is pasted through the adhesive tape 102 in a predetermined pattern, the character sheet 103 via the adhesive tape 102 appears to emit light by irregular reflection.
[0025]
Here, by changing the light emitted by the RGB LED lamp 51, blue light is emitted when the sample 4 is a cold product, red light is emitted when the sample 4 is a hot product, or green tea is emitted. For such products, the color of the characters 103 displayed on the light guide plate 101 can be changed with a color that matches the image of the product by performing green color development.
[0026]
Since the character sheet 103 is affixed to the light guide plate 101, even if the light guide plate 101 is formed on the front surface of the sample 4, it is not difficult to see the sample. Further, even when the character sheet 103 does not receive the light emitted from the RGBLED lamp 51, the character itself can be read.
[0027]
According to the product sample display panel of the vending machine according to the first embodiment, the light travels while reflecting the inside, the light guide plate having a predetermined pattern such as letters and pictures on the surface, and the predetermined Because it is configured to include LED lamps that emit light, the product sample can be explained and promoted without losing aesthetics, information can be transmitted without using a seal, and there is a certain appeal pattern It has an interesting feature that it can be changed into various colors.
[0028]
FIG. 7 shows a second embodiment of a display panel according to the present invention, which shows an example of use as a display panel of a small show window.
[0029]
The small display window 200 includes a display space 203 having a predetermined volume on the floor surface 204, a product sample 202 placed on the floor surface 204, and a display panel 201 placed on the front surface of the display space 203. The Here, in the display panel 201, a character sheet 205 is attached on a light guide plate 206 by an adhesive sheet (not shown). Note that an RGBLED lamp or the like is accommodated in the protective cover 207.
[0030]
Since the configuration and operation of the display panel 201 are the same as those in the first embodiment described above, a description thereof will be omitted.
[0031]
According to the display panel 201 of the small show window according to the second embodiment, the light travels while reflecting inside, and the light guide plate 206 on which a predetermined pattern such as letters and pictures is drawn on the surface, and the predetermined display Because it is configured to include LED lamps that emit light, the product sample can be explained and promoted without losing aesthetics, information can be transmitted without using a seal, and there is a certain appeal pattern It has an interesting feature that it can be changed into various colors.
[0032]
The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, although patterns such as letters and pictures are formed by a letter sticker through an adhesive tape, a paint that easily reflects light may be applied by printing. Further, a fluorescent paint or a phosphorescent paint using the fluorescence / phosphorescence phenomenon of the substance may be applied. For example, the fluorescent paint includes a xanthene-based fluorescent paint, and the phosphorescent paint includes, for example, a pigment containing a sulfide (copper) lead or calcium sulfide (bismuth). In addition, the inside of a parenthesis is an activation material. When such paint is irradiated with light, the light is irregularly reflected according to the components of the paint.
[0033]
Furthermore, although the plate-shaped body has been described as the light guide member, it is not limited to the plate-shaped body, and may have other shapes such as a round bar or a prismatic shape.
[0034]
【The invention's effect】
As described above, according to the display panel of the present invention, since the pattern of the display unit can be visually recognized from the direction in which the irregularly reflected light generated in the display unit is generated by the light introduced into the light guide member, the appearance is impaired. The product sample can be explained and promoted without any problem, information can be transmitted without using a sticker, and there is an appeal that a predetermined pattern can be changed into various colors.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of a product sample explanation panel of a vending machine according to the present invention.
FIG. 2 is a partially cutaway view of a main part of the vending machine shown in FIG.
3A and 3B are diagrams showing a display panel, in which FIG. 3A is a longitudinal sectional view of FIG. 2, and FIG. 3B is a schematic view of the display panel.
4A and 4B show examples of RGB LED lamps used in a display panel, in which FIG. 4A is a perspective view seen from the front side, and FIG. 4B is a view seen from the back side.
FIG. 5 is a diagram showing a circuit configuration of an RGBLED lamp.
FIG. 6 is a diagram showing a light emission mechanism of the explanation panel of the present invention.
FIG. 7 shows a second embodiment of the product sample explanation panel of the vending machine according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vending machine 2 Vending machine main body 3 Main door 4 Sample 5 Sub panel 6 Selection button 10 Change return port 12 Merchandise return port 31 Transparent panel 32 Exhibition space 33 Sample stand 40 Groove part 51 RGBLED lamp 52 LED element mounting substrate 52a Surface 52b Back surface 52c End surface 52d Side surface 52e Top surface 53C Common electrode 53R Red electrode 53G Green electrode 53B Blue electrode 54 Through-hole plating 55R Red LED element 55G Green LED element 55B Blue LED element 56 Bonding wire 57 Convex lenses 65G, 65R, 65B terminal 100 display panel 101 light guide plate 102 adhesive tape 103 character sheet 104 substrate 106 circuit component 107 protective cover 110 magnet 200 show window 201 display panel 202 product sample 205 character sheet 206 light guide plate 207 protective cover

Claims (5)

A transparent or translucent light guide member that propagates to the other end surface side while totally reflecting light introduced to one end surface on the side surface;
A display unit that is formed to have a predetermined pattern on the side surface on the other end surface side of the light guide member, and generates diffusely reflected light upon receiving light;
A light source that introduces the light into the one end surface of the light guide member to generate the irregularly reflected light from the display unit ;
A protective cover for covering the light source and a circuit component for causing the light source to emit light ,
A sub-panel is formed on the front surface of the sample table provided in the exhibition space between the main door of the vending machine and the transparent panel, and the lower part of the light guide member including the protective cover is inserted into the groove formed in the sub-panel. A display panel characterized by being fixed .   The display panel according to claim 1, wherein the light source is an LED lamp.   The display panel according to claim 1, wherein the light source is an RGB LED lamp including a red LED element, a green LED element, and a blue LED element.   The display panel according to claim 1, wherein the light guide member is a light guide plate.   The display panel according to claim 1, wherein the display unit is formed by a sealing material or printing via an adhesive sheet.

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