JP2006322968A - Display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display apparatus having an LED light emitting panel excellent in decorative effect and rendering effect and capable of performing display of high advertisement effect. <P>SOLUTION: The display apparatus 8 is integrally constituted of: a scroll display section 2 comprising a plurality of LED panels or the like whereon a large number of dots are arrayed in matrix; and a fixed display section 3 comprising two display plates of light guide plate such as acrylic plate whereon patterns are printed with a paint having light diffusing property, and LEDs or the like for emitting light to the end face of the display plate. On the fixed display section 3, when the light propagating through the display plate falls on the pattern, the light diffuses to make the pattern emit light. Thus, by controlling the LEDs, the pattern on the two display plates is made to emit light independently in a desired color or a lighting pattern. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device that can be used as news reports, guidance displays, advertisements, various displays, and the like, and more particularly, to a display device that scrolls characters and images by arranging a large number of light emitting diodes (LEDs) in a matrix.

  Conventionally, display devices for displaying characters and images such as news articles and advertisements have been provided in stores, trains, etc., and in this display device, a number of LEDs are arranged in a matrix on the panel in the vertical and horizontal directions. A dot matrix LED display device using an LED light-emitting panel mounted on is well known.

  Thus, in the dot matrix LED display device using this LED light emitting panel, for example, when displaying a long sentence, the LED is arranged so that the characters scroll from one end side to the other end side of the LED light emitting panel (matrix). Lighting control is performed (for example, refer to Patent Document 1).

JP-A-10-63200

  By the way, in the above-described dot matrix LED display device, when displaying a short character string or image for advertising that is particularly appealing, such as a company name or logo mark, a predetermined value is given during or at the end of the scroll display. A so-called switching display method in which the time is fixed and displayed is adopted.

  However, in such a switching display method, there is a problem that the advertisement effect is not improved because the advertisement display is overlooked or the appeal degree is not so interesting.

  The present invention has been made in order to solve such problems, and the object of the present invention is to provide a display device including an LED light-emitting panel that is excellent in decoration effect and production effect and capable of displaying with high advertising effect. Is to provide.

  In order to solve such a problem, a display device according to the present invention includes a first display unit including a matrix type display panel in which a large number of display pixels are arranged in a dot shape, and A control unit that selectively emits and displays desired display contents by selectively emitting display pixels, a second display unit that includes a display plate with a light diffusing pattern attached to a light guide plate, and an end face of the display plate And a light source unit that emits light to emit the pattern.

  According to the above invention, the control unit selectively causes the display pixels to emit light so that the first display unit can display a desired display content, for example, a long sentence such as news reports, an image, or the like in a fixed manner or scroll display. can do. As a specific mode of the display panel, for example, a light emitting diode (LED) arrayed in a matrix is used. In this case, one LED (red, blue, or green LED) is arranged in one dot. Alternatively, a plurality of LEDs (red, blue and green LEDs, in this case, full color can be developed) may be arranged. In addition, as another display panel, what employ | adopted liquid crystal, plasma, EL (electroluminescence), etc. is mentioned.

  On the other hand, in the second display unit, light incident from the end face of the display plate propagates in the light guide plate, and when it collides with the pattern, the light is diffused and emitted to the outside of the light guide plate, and the pattern portion emits light. In this configuration, light may be irradiated from the end face of the display plate, and it is not necessary to directly attach the light source to the display plate. Further, the display plate pattern itself can emit light without electrically connecting the display plate. In this second display section, for example, a short character string or image for advertising that is particularly appealing, such as a company name or a logo mark, can be fixedly displayed. Moreover, the light emission color of the pattern is changed only by changing the color of the light applied to the display plate. In addition, as a material of a light-guide plate, the methacryl resin (PMMA), acrylic resin, etc. as a transparent material with a high refractive index are preferable.

The display device may be formed integrally by processing a frame as appropriate to form a housing, and the display panel, display plate, control unit, and light source unit may be integrally formed on the housing. Used as a desktop type or a stationary type. Further, a caster or the like may be attached to be movable.
According to a second aspect of the present invention, in the display device according to the first aspect of the present invention, the display device further includes a frame that detachably supports the display plate, and the light source unit is mounted on the frame.

  According to the above invention, the display plate is detachably supported by the frame provided in the display device, and the light source unit is mounted on the frame in advance. The frame may be formed integrally with the housing of the display device. Moreover, the attachment method to the flame | frame of a display plate is not ask | required. For example, the display plate may be fixed with a screw after being fitted in a fixed position, or the display plate may be fixed with a locking tool such as a snap lock. The frame may surround all four sides of the display plate, or may have a part of which is open, for example, a U-shape or an L-shape. Further, it may be supported by only one side. The point is that the pattern can be visually recognized and the display plate can be detachably supported.

Furthermore, the light source unit may be built in the frame. There is no limitation on the method of incorporating the light source in the frame. For example, the unitized light source may be attached to the frame, or may be configured to be attached directly to the frame.
According to a third aspect of the present invention, in the display device according to the first or second aspect, a predetermined gap is ensured between the end face of the display plate and the light source unit facing the end face. Features.

  According to the said invention, even if it mounts | wears with a display plate, a clearance is ensured between a display plate and a light source part. For example, if stopper pieces that protrude slightly from the light source unit are provided at the left and right ends of the light source unit, the display plate abuts against the stopper piece and stops, and the display plate is prevented from directly colliding with the light source unit.

  Also, depending on the size of the gap between the light source section and the end face facing it, light streaks appear in the display plate or prevent the pattern from being exposed to light near the end face facing the light source. It also functions. That is, since the light emitted from the light source usually spreads with a certain directivity (viewing angle), if the light source and the end face of the display plate are brought too close, a range where the direct light from the light source does not reach near the end face occurs. . Since there is a large difference in brightness between the portion where direct light reaches and the portion where light does not reach, streaks of light occur in this portion. In addition, the pattern does not sufficiently emit light in a portion where direct light does not reach. These phenomena are alleviated by increasing the gap.

  According to a fourth aspect of the present invention, in the display device according to any one of the first to third aspects, a portion of the display plate that is within a predetermined distance from the light source unit is covered with a blindfold member. It is characterized by that.

  According to the above invention, the light from the light source part spreads with directivity, and light streaks are likely to occur along the directivity boundary near the light source part, but such a part is covered by the blindfold member. . The blindfold member may be opaque and may be smoked with low transparency.

According to a fifth aspect of the present invention, in the display device according to any one of the first to fourth aspects, a part or all of the display plate is formed in a curved surface.
According to the above invention, a display device having various shapes can be manufactured by using a display plate that is partially or entirely formed in a curved shape, and further, for example, a pattern is formed on a curved surface. If it is made to emit light, the advertising effect and the decoration effect are further enhanced. The display plate formed in a curved surface preferably employs an extruded plate (methacrylic resin, acrylic resin) that is easily thermoformed as the light guide plate. However, since the extruded plate is inferior in impact resistance, surface hardness and the like as compared with the cast plate, the display plate may be protected with a scratch-proof coating in consideration of this.

  The invention according to claim 6 is the display device according to any one of claims 1 to 5, wherein a reflective material is provided on an end surface of the display plate excluding a portion where light from the light source part is incident. It is characterized by.

  According to the above invention, the light incident from the end face of the display plate facing the light source is reflected by the reflecting material on the other end face, so that it is difficult to leak outside the display plate.

Further, according to a seventh aspect of the present invention, in the display device according to any one of the first to sixth aspects, the direct light from the light source unit does not reach the display plate in the vicinity of the end face facing the light source unit. It is characterized by a pattern that avoids the range.
According to the said invention, a pattern is formed avoiding the range where the direct light from a light source does not reach | attain. Usually, the light emitted from the light source spreads with a certain directivity (viewing angle). Therefore, when the light source and the end face of the display plate are brought too close to each other, there is a range where the direct light from the light source does not reach near the end face. By drawing a pattern while avoiding such a range, the pattern emits light appropriately. Further, when a light source unit is configured by arranging three LEDs of three primary colors, red, blue, and green, and arranging a number of them in a row, the LEDs of the same color (for example, red) Since the interval increases, it is important to draw a pattern that avoids the range where the direct light of that color does not reach.

  The invention according to claim 8 is the display device according to any one of claims 1 to 7, wherein the end surface of the display plate on which light from the light source part is incident is mirror-finished. And

  According to the above invention, the light from the light source is efficiently incident on the display plate. For example, mirror finishing is realized by buffing (polishing) the end face of the display plate.

  The invention according to claim 9 is the display device according to any one of claims 1 to 8, wherein the display plate is a pattern printed on the light guide plate with a paint that diffuses light. It is characterized by.

  For example, the pattern can be easily formed on the light guide plate by screen printing a paint having a property of diffusing light. The printed pattern diffuses light in the light guide plate and emits light with a predetermined color and emission intensity depending on the relationship between the light emission color (wavelength) of the light source and the print color of the pattern.

  Further, the invention according to claim 10 is the display device according to any one of claims 1 to 9, wherein the display plate is a film sheet on which a pattern is printed with a paint having a property of diffusing light. It is characterized by being worn.

  According to the said invention, a pattern is formed in a light guide plate by sticking the film sheet which printed the pattern with the coating material of the property which diffuses light to a light guide plate. It is possible to change the pattern and design on the display plate simply by changing the film sheet.

  The pattern may be formed on either the front or back of the film sheet. In the case of forming a pattern on the surface to be attached to the light guide plate, the film sheet may be transparent or opaque, and may be configured to serve as a reflector. When a pattern is formed on the surface opposite to the surface to be attached to the light guide plate, the film sheet is preferably transparent or colorless and transparent. Moreover, a film sheet may be stuck on the whole back surface of a light-guide plate, and you may make it stick only one part, for example, what was cut out in the shape of the pattern. In this case, it is not necessary to cut the pattern accurately, and a certain amount of margin may be provided around the pattern. Further, a film sheet cut into a plurality of patterns may be attached to a display plate in combination.

  The invention of claim 11 is the display device according to any one of claims 1 to 10, wherein the light source of the light source unit is a light emitting diode, and a light reflection layer is formed on a surface of a mounting substrate of the light emitting diode. Is provided.

  According to the above invention, since the light emitted behind the light emitting diode is reflected by the reflective layer and heads to the front, the amount of light incident on the display plate is increased and the light emission intensity of the pattern is increased. The reflective layer is easily formed by plating a conductor layer on the surface of the light emitting diode mounting substrate. In addition to using a conductor layer on the back side of the substrate for wiring to the light emitting diode, two substrates are stacked on top of each other, with one layer immediately behind the light emitting diode as the reflective layer and the other one for wiring. It may be used.

The invention according to claim 12 is the display device according to any one of claims 1 to 11, wherein the control unit also controls a lighting pattern of the light source unit, and the light source unit emits light. The color of light can be switched, and the control unit switches the color of light emitted from the light source unit.
According to the above invention, the display device includes the control unit that not only controls the light emission of the display pixels of the first display unit, but also controls the lighting pattern of the light source unit of the second display unit. That is, the control unit controls the first display unit and the second display unit collectively. Since the pattern on the second display unit emits light by diffusing the received light, the emission color of the pattern changes by changing the color of the illuminating light. For example, when the pattern is drawn with a white paint that diffuses light, the pattern emits light in the color of the irradiated light. When the pattern is drawn in a specific color such as red or green, a color obtained by mixing the paint color of the pattern and the color of the irradiated light is the light emission color of the pattern. For example, if the three primary colors of light are prepared as the light source, these colors can be combined to emit full color, and the pattern can be emitted with various colors. Of course, similarly, the light color of the dots (display pixels) of the first display unit may be switched, and the control unit may switch the color of the dot light. Moreover, you may provide the lighting setting means which sets the lighting pattern of a 2nd display part to a predetermined lighting pattern.

  The invention according to claim 13 is the display device according to claim 12, wherein the display plate does not emit light when irradiated with light of a specific color and is irradiated with light of another color. The light-emitting color pattern and the color pattern that emits light when irradiated with the specific color light are formed for one or more specific colors, and the light source unit determines the color of the emitted light as the 1 Or it is possible to switch among a plurality of colors including two or more specific colors, and the control unit switches a light emission part of a pattern by switching a color of light emitted from the light source unit.

According to the above invention, when the second display unit is irradiated with light of a specific color, a pattern other than the pattern that does not emit light of that color emits light. For example, when light of a certain color is irradiated, a pattern drawn with a complementary color of the color hardly emits light, and a pattern drawn with another color emits light. Therefore, by switching the color of the light emitted from the light source unit, the light emission part of the pattern is switched. Only one type of specific color may be used, or two or more types may be provided. Alternatively, the specific color may be the three primary colors of light.
The invention according to claim 14 is the display device according to claim 13, wherein the order of switching the color of the light emitted from the light source unit so that the position of the pattern that does not emit light or the pattern that emits light sequentially moves in a predetermined direction, The feature is that the color and arrangement of the pattern are set.
According to the above invention, the position of the pattern that does not emit light or the position of the pattern that emits light changes in a predetermined direction by simply switching the color of the light emitted from the light source unit in a predetermined order. For example, if a pattern that does not emit light with red light, a pattern that does not emit light with green light, or a pattern that does not emit light with blue light is repeatedly arranged in this order, and the emission color of the light source is switched repeatedly in the order of red, green, and blue, It seems that the position of the pattern that does not or the position of the pattern that emits light moves in a predetermined direction.
The display device according to claim 15 is the display device according to any one of claims 1 to 14, wherein the display plate includes a first display plate and a second display plate, and the first display plate is a first display plate. It is located on the front side of the two display plates, and a predetermined pattern is formed by overlapping a part or all of the first display plate and the second display plate.

According to the above invention, the light incident from the end surfaces of the first display plate and the second display plate is propagated through the light guide plate by the first light source unit and the second light source unit, respectively. The light is emitted out of the light plate, and the pattern portion emits light. That is, a predetermined pattern formed by overlapping part or all of the first display plate and the second display plate emits light. Three or more display plates may be used.
According to a sixteenth aspect of the present invention, in the display device according to the fifteenth aspect, the light source unit irradiates light to the end surface of the first display plate and the first light source unit that irradiates light to the end surface of the first display plate. The light emitted from the first light source is incident on the end surface of the second display plate, and the light emitted from the second light source is incident on the end surface of the first display plate. It is characterized by having a preventing member for preventing.
According to the above invention, the light emitted from the first light source unit that irradiates light to the end surface of the first display plate and the second light source unit that irradiates light to the end surface of the second display plate spreads with directivity. The light reflected from the prevention member and emitted from the first light source unit is incident on the end surface of the first display plate, and the light emitted from the second light source unit is incident only on the end surface of the second display plate. In the relationship with claim 2, the prevention member may be provided on a frame that supports the display plate.
According to a seventeenth aspect of the present invention, in the display device according to the fifteenth or sixteenth aspect, a shielding member is provided to cover a gap between the first display plate and the second display plate.

  According to the above invention, even if a gap is formed when the first display plate and the second display plate are overlapped, the gap is covered by the shielding member. In addition, as a shielding member, a tape, a plate, etc. can be considered.

  According to the invention of claim 1, a short character string or an image for advertising that a long sentence such as news reports or an image or the like is moved and displayed (scrolled) on the first display unit, and is particularly desired to be appealed on the second display unit. Etc. can be fixedly displayed, so that a display with a high advertising effect and excellent production effect can be achieved. In the second display unit, the pattern of the display plate itself emits light by irradiating light from the light source unit to the end face of the display plate. Therefore, the contrast with the portion that does not emit light is strong and a high decorative effect can be obtained. Further, since the light emission color of the pattern is changed without changing the color of the pattern itself by changing the color of the irradiated light, a variety of decoration effects can be obtained, and the advertising effect is further enhanced.

  In addition, the second display unit has a very simple structure as compared with the case where a liquid crystal, plasma, EL (electroluminescence), or the like is used instead of the structure of the present invention, and light is applied to the end face of the display plate. Since the pattern itself emits light simply by irradiating it, it is not necessary to disconnect or reconnect the wiring when replacing or removing the display plate, greatly improving work efficiency and reducing the overall cost of the display device. Become. Furthermore, since the pattern can be changed by replacing the display plate, the design can be changed at a low cost.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, since the display plate is detachably supported by the frame, the display plate can be easily replaced, maintained and inspected, and is excellent in handling.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, the display plate does not directly collide with the light source section, and it is possible to prevent the light source and the display plate from being damaged due to mutual contact. it can.

  According to the invention of claim 4, in addition to the effects of the invention of any one of claims 1 to 3, the streak of light generated near the light source section is covered and the appearance is improved.

  According to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, a display device having various elaborate shapes can be produced, and a pattern is formed on a curved surface. It can also be used to emit light, further enhancing advertising and decoration effects.

  According to the invention of claim 6, in addition to the effect of the invention of any one of claims 1 to 5, it is difficult for light to leak to the outside of the display plate, and the light emission intensity of the pattern can be increased. In contrast to the present invention, the light incident from the light source unit may be emitted from an end surface different from the end surface on which the display plate is incident. In this way, the light emission intensity of the pattern becomes weak, but on the other hand, the end face different from the end face on which the light of the display plate is incident shines brightly, and the decoration effect is enhanced. If the end surface from which the light exits is mirror-finished, the amount of light emitted increases, resulting in brighter light. In this case, the reflecting material may be provided on the end face of the light guide plate other than the part where the light from the light source is incident and the part where the light is emitted.

  According to the invention of claim 7, in addition to the effect of any of the inventions of claims 1 to 6, there is no pattern in a range where direct light from the light source part does not reach, and each pattern emits light appropriately. .

  According to the invention of claim 8, in addition to the effects of the invention of any one of claims 1 to 7, light from the light source can be efficiently incident on the display plate, and the light emission intensity of the pattern is increased. Can do.

  According to the invention of claim 9, in addition to the effects of any one of claims 1 to 8, the design of the display plate can be changed simply by printing, and the design can be changed quickly and at low cost. become. Furthermore, by appropriately selecting a printing color with respect to the light emission color (wavelength) of the light source, the pattern can be emitted with a desired color and light emission intensity, and the advertising effect and the decoration effect are extremely enhanced.

  According to the invention of claim 10, in addition to the effect of the invention of any one of claims 1 to 9, the design of the display plate can be changed by simply replacing the film sheet, and the design can be changed at low cost. It becomes possible. Furthermore, by appropriately selecting the color to be printed on the film sheet with respect to the light emission color (wavelength) of the light source, the pattern can be emitted with the desired color and light emission intensity, and the advertising effect and the decoration effect are extremely enhanced.

  In addition, in the case where the film sheet cut into the shape of the pattern is attached to the light guide plate, it is possible to form display plates of various designs just by changing the combination and arrangement of the film sheets to be attached, The advertising effect and the decoration effect can be easily enhanced.

  According to the invention of claim 11, in addition to the effects of any of the inventions of claims 1 to 10, the light emitted from the light emitting diode is reflected by the light reflecting layer provided on the surface of the light emitting diode mounting substrate. Since the light is concentrated on the front surface, the amount of light incident on the display plate is increased and the light emission intensity of the pattern is improved. In addition, since a light emitting diode is used as a light source, a light source unit having a compact (thin), low power consumption and long life can be provided, and a display plate can emit light in various colors by selecting a light emission color.

  According to the invention of claim 12, in addition to the effect of any of the inventions of claims 1 to 11, the control unit controls the first display unit and the second display unit in a lump. As a result, the space efficiency of the display device is improved. Further, in the second display unit, the light emission color of the pattern is changed without changing the color of the pattern itself only by changing the color of the irradiated light. A decorative effect can be obtained, and the advertising effect is further increased accordingly.

  According to the invention of claim 13, in addition to the effect of the invention of claim 12, the pattern can be selectively emitted only by switching the color of the light emitted from the light source part. Advertising effects can be obtained with a simple device configuration.

  According to the invention of claim 14, in addition to the effect of the invention of claim 13, it is possible to obtain a decoration effect such that the pattern moves only by switching the color of the light emitted from the light source unit in a predetermined order, Furthermore, the advertising effect is increased.

  According to the fifteenth aspect of the present invention, in addition to the effects of any of the first to fourteenth aspects, the pattern of the second display section can be made three-dimensionally and more elaborate. Further, since the patterns of the plurality of display plates each emit light, the contrast with the portion that does not emit light becomes stronger, and a high decoration effect and advertising effect can be obtained. In addition, if the pattern of the first display plate and the pattern of the second display plate are caused to emit light with a desired light emission pattern, display with a very high effect can be achieved.

  According to the invention of claim 16, in addition to the effect of the invention of any one of claims 1 to 15, the light emitted from the first light source part by the prevention member is applied to the end surface of the second display plate, and the second light source. This prevents the light emitted from the portion from entering the end face of the first display plate, thereby causing the first display plate pattern and the second display plate pattern to emit light with an appropriate lighting pattern and lighting color. be able to.

  According to the invention of claim 17, in addition to the effect of the invention of claim 15 or claim 16, even if a gap is formed when the first display plate and the second display plate are overlapped, the shielding member reduces the gap. Since the cover is covered, dust and the like can be prevented from entering through the gap between the first display plate and the second display plate, and the pattern can be appropriately emitted. That is, the shielding member functions as a dustproof means.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a display device 8 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the display device 8. The display device 8 is roughly divided into a frame 12, a front transparent plate 5, a display plate 25 (first plate 25a, second plate 25b), an LED panel 6 (6a, 6b, 6c), and a back cover plate 7. And is formed in a substantially rectangular shape.

  The frame 12 is formed in a substantially frame shape, a front transparent plate 5 is attached to the front side thereof, and a base frame 13 to be described later on which a display plate 25 is mounted is provided at the lower part of the frame 12. Further, the frame 12 is provided with a light receiving unit 16 that receives light from a remote control device 85 described later. On the other hand, the LED panel 6 is attached to the back cover plate 7 by attachment means (not shown).

  The LED panel 6 is formed on the upper portion of the display plate 25 as shown in FIG. 1, and as the scroll display portion 2, for example, a long sentence such as news reports and images are scrolled and displayed in the arrow Y direction. Each LED panel 6a, 6b, 6c has a large number of dots arranged in a matrix. Within the dots, as shown in FIG. 3, two red LEDs 9a, one blue LED 9b, and a green LED 9c are arranged. One is provided.

  The two red LEDs 9a are arranged symmetrically so as to sandwich the blue LED 9b and the green LED 9c, and by arranging the LEDs 9a, 9b, 9c in this way, red, blue, and green are mixed well and a beautiful full color is developed. It has become so. FIG. 3 is a front view showing the red LED 9a, the blue LED 9b, and the green LED 9c arranged in one dot of the LED panel 6.

  Next, the display plate 25 will be described. The display plate 25 is formed in the lower part of the scroll display unit 2 in the display device 8 and functions as the fixed display unit 3 that fixes and displays characters and pictures such as advertisements. FIG. 4 is a perspective view showing how the display plate 25 is mounted on the base frame 13, and FIG. 5 is a perspective view showing the configuration of the display plate 25. As shown in FIG. 5, the display plate 25 has a structure in which two first plates 25a and second plates 25b having the same size are stacked, and the first plate 25a is located on the front side, and the second plate The plate 25b is located on the rear side.

  The first plate 25a and the second plate 25b are printed with a pattern to be described later, and a predetermined pattern is displayed on the display plate 25 by overlapping both. As shown in FIG. 4, the display plate 25 configured in this manner has the lower ends of the first plate 25 a and the second plate 25 b at the front plate 14, the back plate 15, and the base partition 23 of the base frame 13. Are respectively inserted into the two grooves formed by the above-described structure and mounted on the frame 12.

  6A is a front view of the frame 12, FIG. 6B is an AA cross-sectional view of FIG. 6A, and FIG. 6C is a BB cross-sectional view of FIG. A base frame 13 is provided at the lower part of the frame 12, and the base frame 13 is formed in a horizontally long box shape as a whole, and a base partition 23 is formed at the center in the depth direction, and on the front side thereof. The front plate 14 has a back plate 15 formed in parallel with the base partition 23 on the rear side.

  In the base frame 13, the first plate 25 a is formed by the base partition 23 and the back plate 15 in a groove formed by the front plate 14 and the base partition 23 with the box-shaped open part facing upward. The second plate 25b is detachably fitted in the groove. Accordingly, the first plate 25 a and the second plate 25 b are attached to the frame 12 so as to overlap with the thickness of the base partition 23.

  Further, as shown in FIGS. 6B and 6C, stopper pieces 47a, 47b, 47c and 47d are provided inside the left and right ends of the base frame 13. The stopper pieces 47c and 47d are provided when the first plate 25a is attached to the frame 12, and the stopper pieces 47a and 47b are provided when the second plate 25b is attached to the frame 12. It is formed in order to maintain an appropriate clearance (including prevention of contact) between the lower end surface 24b of the plate and an LED 71 (described later) provided inside the base frame 13. In the figure, reference numeral 18 denotes a groove formed between the frame 12 and the front plate 14, and the lower end portion of the front transparent plate 5 is inserted into the groove 18.

  FIG. 7 is a six-sided view showing the LED unit 76 as a light source unit housed in the base frame 13 of the frame 12. FIG. 8 is a front view and a plan view of the LED substrate 70, and FIG. 9 is a six-face view of the support plate 55. In FIGS. 7 and 9, the rear view is the same as the front view and is omitted. The LED unit 76 shown in FIG. 7 is configured by attaching the LED substrate 70 of FIG. 8 to the support plate 55 of FIG.

  As shown in FIG. 8, on the LED substrate 70, a set of three red LEDs 71a, blue LEDs 71b, and green LEDs 71c is attached in a line of five sets. The red LED 71a is a 5φ (diameter 5 mm), and the blue LED 71b and the green LED 71c are 3φ (diameter 3 mm). Since red has a lower emission intensity than blue and green, the difference in emission intensity is compensated for by using a 5φ red LED 71a.

  The LED substrate 70 has a structure in which two LED mounting substrates 72 and a base substrate 73 having the same size are stacked. The LED mounting substrate 72 and the base substrate 73 are formed with a width (7 to 10 mm) × a length (100 to 200 mm). Female connectors 75a and 75b are provided on both left and right ends of the base substrate 73 on the back surface 73a side.

  As shown in FIG. 10, the red LED 71a used in the present embodiment has a thicker pedestal than the head, and the blue LED 71b is in the shape of a cylinder. The LED mounting board 72 has a hole having a size that allows the head of the red LED 71a to pass therethrough and cannot pass through the pedestal at a position corresponding to the mounting position of the red LED 71a. In addition, a through hole having a size through which the terminals of the LEDs 71b and 71c pass but cannot pass through the main body is formed at a position corresponding to the attachment location of the blue LED 71b and the green LED 71c. The base substrate 73 has through holes through which the terminals of the LEDs 71a and 71b pass, and a wiring pattern is provided on the back surface 73a.

  When assembling the LED board 70, first, the terminal of the red LED 71a is inserted into the base board 73, and then the LED mounting board 72 is put on the red LED 71a and the LED mounting board 72 is brought into contact with the base portion of the red LED 71a. Thereafter, the terminal of the blue LED 71b is passed through the corresponding hole from above the LED mounting substrate 72, and the LED mounting substrate 72 is pressed from above by the body of the blue LED 71b. In this state, the terminals of the LEDs 71a, 71b, 71c are soldered and fixed to the wiring pattern on the back surface 73a of the base substrate 73.

  Accordingly, the LED mounting substrate 72 and the base substrate 73 can be held in a stacked state without providing a separate mounting member. Further, since the blue LED 71b and the green LED 71c have their terminals passing through both the LED mounting substrate 72 and the base substrate 73, they are more firmly attached to the base substrate 73. That is, the LED mounting substrate 72 has a function of firmly mounting the LED 71 to the LED substrate 70.

  Further, a reflective layer 74 capable of reflecting the light of the LED 71 is provided on the surface of the LED mounting substrate 72. The reflective layer 74 is not particularly limited as long as it can reflect light. For example, the reflective layer 74 may be formed by performing metal plating such as solder on the conductor layer on the substrate.

  As for the type of the LED 71, it is preferable to appropriately select the luminance and directivity according to the length of the display plate (light guide plate) 25. Generally, if the length of the display plate 25 is short (for example, 20 cm or less), the viewing angle is reduced. As a thing of about 45 to 60 degree | times, it does not need to be a high brightness type. Furthermore, in this case, since the pitch of the LEDs 71 can be designed wider (for example, 2 cm or more), the cost is reduced.

  On the other hand, if the length of the display plate 25 is long (for example, 40 cm or more), in order to ensure an appropriate amount of light at the other end, for example, a viewing angle of about 20 to 35 degrees and a high luminance type is used. preferable. In this case, it is desirable to reduce the pitch of the LEDs 71 (for example, 1 cm or less). In this way, the emission intensity of the display plate 25 can be maintained while reducing the cost as much as possible.

  As shown in FIG. 9, the support plate 55 includes a fitting convex portion 56 at one end in the length direction and a fitting concave portion 57 at the other end, and is fitted with the fitting convex portion 56 of the adjacent support plate 55. A plurality of support plates 55 can be connected in a row by fitting the recess 57. Cutouts 58a and 58b are provided at positions corresponding to the female connectors 75a and 75b of the LED board 70 inserted into the support plate 55. The storage walls 59a and 59b provided at the lower portions are, as shown in FIGS. 11 to 13, the male connector 78 and the male connector 19, the wire harness 77, and the wire harness 17 that are fitted to the female connectors 75a and 75b of the base substrate 73. It fulfills the function of storing.

  FIG. 11 shows how the LED units 76 are connected to each other. After fitting and connecting the fitting convex portion 56 and the fitting concave portion 57, the adjacent LED units 76 are electrically connected to each other by a wire harness 77 having male connectors 78 at both ends. Furthermore, the male connector 19 of the wire harness 17 for electrically connecting to the LED driver board 80 described later is connected to the female connector of the LED unit 76 located at either end.

  FIG. 12 is a front view of a state in which two LED units 76 are connected, and FIG. 13 is a bottom view of a state in which two LED units 76 are connected. The male connectors 78 and 19 and the surplus wire harness 77 are accommodated inside the storage walls 59a and 59b.

  FIG. 14 is a plan view showing a state in which the LED unit 76 is installed in the base frame 13, and FIG. 15 is a front view showing a state in which the LED unit 76 is installed in the base frame 13. FIG. 15 shows a state in which the front plate 14 (portion indicated by a two-dot chain line) of the base frame 13 is removed.

  As shown in FIG. 14, a plurality of LED units 76 are provided in two grooves formed by the front plate 14, the back plate 15, the base partition 23 and the stopper pieces 47a, 47b, 47c, 47d (three in the figure). ) Installed in parallel. It should be noted that the means for installing the LED unit 76 on the base frame 13 may be screwing, bonding, fitting, or the like.

  Since the male connector 78, the male connector 19, and the surplus wire harness 77 are accommodated inside the housing walls 59a and 59b, the LED unit 76 can be connected to the bottom wall of the base frame 13 without the surplus wire harness 77 and the like getting in the way. It is possible to insert it securely until it comes into close contact with.

  FIG. 16 is a front view showing the display device 8 with the display plate 25 (the first plate 25a and the second plate 25b) attached to the base frame 13 together with the internal structure. It is a right view. FIG. 17 shows a state in which the right frame of the frame 12 and the right wall of the base frame 13 are removed. When the lower end 24a of the first plate hits the stopper pieces 47c and 47d and the upper end 24b of the second plate hits the stopper pieces 47a and 47b, the first plate 25a and the second plate 25b overlap to display a predetermined pattern. In addition, a slight clearance is secured between each LED 71 of the LED unit 76 and the lower end of the display plate 25 (the lower end 24a of the first plate and the lower end 24b of the second plate), so that the display plate 25 is attached to the base frame 13 ( It is attached to the frame 12).

  As shown in FIG. 17, the front transparent plate 5 is attached to the frame 12 by inserting the lower end portion into the groove 18 and then screwing the upper end portion or the like. A driver board 80 (including the light receiving unit 16) is also mounted. On the other hand, the LED panel 6 (6a, 6b, 6c) is attached to the back cover plate 7 with bosses and screws. Accordingly, the display device 8 is configured by appropriately attaching the frame 12 to which the display plate 25, the front transparent plate 5 and the LED driver board 80 are attached, and the back cover plate 7 to which the LED panel 6 is attached by an attachment means. Will be. The display plate 25 may be attached to the base frame 13 and then fixed to the frame 12 or the base frame 13 with screws or the like as appropriate.

  FIG. 18 is an exploded perspective view of the first plate 25 a, the reflective tape 26 a, and the reflective sheet 27. A reflective tape 26a is attached to the peripheral portion of the first plate 25a, a pattern 30a is printed on the back side of the first plate 25a, and a reflective sheet 27 is attached only to a portion overlapping the pattern 30a. The The reflective tape 26 is not formed on the lower end 24a of the first plate where the LED 71 faces.

  FIG. 19 is an exploded perspective view of the second plate 25b, the reflective tape 26b, and the reflective sheet 28. FIG. The second plate 25b is formed in the same shape as the first plate 25a, the reflective tape 26b is attached to the peripheral edge of the second plate 25b, and the pattern 30b is printed on the back side of the second plate 25b. At the same time, the reflective sheet 28 having the same size as the second plate 25b is attached.

  The reflection sheets 27 and 28 may be sheets that are colored white or glossy. Further, in the first plate 25a, the transparent reflection sheet 27 having the same size as that of the first plate 25a may be colored white or glossy only in a portion overlapping the pattern (printing unit) 30a. . Further, in the second plate 25b, the reflection sheet 28 may be provided only in a portion overlapping the pattern (printing portion) 30b, and a desired background color may be applied to other portions. That is, the reflection sheet 27 improves the light emission intensity of the pattern (printing part) 30a and allows the pattern (printing part) 30b of the second plate 25b to be seen through when the first plate 25a and the second plate 25b are overlapped. On the other hand, the reflection sheet 28 should improve the light emission intensity of the pattern (printing part) 30b at the minimum.

  The reflective tapes 26a and 26b may be tapes colored with white or glossy color, similar to the reflective sheets 27 and 28. As a result, the light passing through the inside of the first plate 25a and the second plate 25b is reflected at the boundary with the outside and is prevented from leaking to the outside, and the light emission intensity of the patterns (printing portions) 30a and 30b is improved.

  The first plate 25a and the second plate 25b as light guide plates are formed with a thickness of about 5 mm, and the back side (the reflection sheets 27 and 28 side) is a pattern (light emitting part) that diffuses light. The printing units 30a and 30b are screen printed. The paint (ink) used for this printing has diffuse reflection characteristics and contains a scattering material. Examples of the material include pearl materials, glass, bead pigments, white pigments, and diffusibility and color development. An organic fluorescent derivative and a non-organic compound may be added to improve the emission intensity.

  Specifically, transparent organic resin particles such as silicone resin particles and polystyrene resin particles, metal oxide particles such as Al2O3, TiO2, and SiO2, sulfate particles such as BaSO4, carbonate particles such as CaCO3, fine glass powder and glass Examples include inorganic compound particles such as balloons, micro air cells, and the like, and these can be used alone or in combination of two or more.

  In consideration of the reflection efficiency, the printability of the paint, etc., the average particle diameter of the particles of these materials is preferably about 0.01 to 20 μm, particularly about 0.05 to 1 μm, and is contained in the light reflecting layer. The amount is preferably about 0.5 to 50% by weight, particularly about 3 to 20% by weight. In addition, the coating material can use thermosetting resins, such as an acrylic resin, a urethane resin, and an epoxy resin, or what uses adhesives, such as an acrylic type, a rubber type, and an elastomer type, as a binder.

  In addition to screen printing, printing methods such as offset printing, gravure printing, letterpress printing, pad printing, and ink jet printing can be employed. Preferably, printing is performed in an inline manner in the molding process of the display plate 25. Good. Also, if the printing thickness is excessively thin, the light reflection efficiency is not sufficient, and conversely, even if it is excessively thick, there is no significant difference in the light reflection efficiency. Therefore, it is preferable to select appropriately considering these, and it is usually preferable to set the thickness to about 20 to 200 μm.

  Moreover, as a material of the light guide plate constituting the display plate 25 (first plate 25a, second plate 25b), a transparent material having a high refractive index is used, and methacrylic resin (PMMA), acrylic resin, etc. are preferable, and less In addition, it can be appropriately selected from plastics, elastomers and the like according to the purpose, for example, polystyrene, styrene / methyl methacrylate copolymer, polymethylpentene, allyl glycol carbonate resin, spirane resin, amorphous polyolefin, polycarbonate, Polyamide, polyarylate, polysulfone, polyallylsulfone, polyethersulfone, polyetherimide, polyimide, diallyl phthalate, fluororesin, polyester carbonate, norbornene resin (ARTON), cycloaliphatic Lil resin (OPTOREZ), silicone resins, acryl rubber, a transparent material such as silicone rubber.

  In addition, the light guide plate (methacrylic resin, acrylic resin) can be produced by cell casting or extrusion. Extrusion plates have a lower molecular weight than cast plates due to differences in the manufacturing process, and their physical properties are heat resistant and impact resistant. -Although the surface hardness is slightly inferior, there is an advantage that it is easy to thermoform, and this manufacturing method may be appropriately selected according to the purpose. In this embodiment, a cast plate is used.

  Thus, the display plate 25 (the first plate 25a and the second plate 25b) can form the light-emitting portions that are the patterns 30a and 30b for diffusing light by printing, so that various characters and designs can be displayed in a free color. Can be adopted very easily. In addition, it is good for printing to make it print about 1.5 to 2 cm apart from the lower end 24a of the 1st plate which LED71 faces, and the lower end 24b of the 2nd plate. This is because the printing units 30a and 30b do not emit light neatly due to the directivity of the LED 71 if printing is performed too close to this end face.

  FIG. 20 shows the relationship between the directivity of the LED 71 and the irradiation area. When attention is paid to the red LED 71a, no light directly reaches the portion indicated by the hatched portion 301 from any of the red LEDs 71a. Since there is a large difference in brightness between the portion where the direct light reaches and the portion where the light does not reach, streaks of light occur. Therefore, it is preferable to design the shaded portion 301 where direct light does not reach within the base frame 13 so as to cover the light streaks with the front plate 14. In the display device 8 shown in FIG. 16, the lower end 24a of the first plate and the lower end 24b of the second plate enter several centimeters inside the front plate 14, and the front plate 14 functions as a blindfold member that hides light streaks. Plays. In the present embodiment, the lower frame of the frame 12 also functions as a blindfold member. Any one of them may have the function of a blindfold member. In this case, it is better to give the frame 12 the function of the blindfold member from the viewpoint of design.

  Further, as shown in FIG. 21, even when the range 301 where the direct light from the LED 71 does not reach all fits in the front plate 14, the pattern 302 may be printed while avoiding the range 301. Therefore, it is preferable to design the pitch and directivity (viewing angle) of the LEDs 71 and the width of the front plate 14 in consideration of the influence of light streaks and the size of the range to avoid pattern printing.

  Note that the thickness of the first plate 25a and the second plate 25b may be other than 5 mm, as long as the range of about 3 to 7 mm is appropriate. If it is less than this range (less than 3 mm), the emission intensity decreases. On the other hand, if this range is exceeded (exceeding 7 mm), the emission intensity is not a problem, but the display plate 25 becomes thick, bulky, or heavy. Therefore, it is not preferable in handling.

  FIG. 22 shows a propagation path of the light incident from the LED 71 inside the first plate 25a and the second plate 25b. The light emitted from the LED 71 is, for example, as shown in the incident light 31, the first plate 25a, Incident light 31 that has passed through the inside of the second plate 25b and reached the edges of the first plate 25a and the second plate 25b is reflected by the reflection tapes 26a and 26b and again from the first plate 25a and the second plate 25b. Pass through the interior.

  Here, as shown in FIG. 23, the incident light 31 emitted from the LEDs 71 arranged in two rows is reflected by the base partition 23 of the base frame 13, and always corresponds to the inside of the corresponding first plate 25a and second plate 25b. It is made to enter. That is, the base partition 23 functions as a prevention member that prevents the intrusion of the incident light 31 from the adjacent LED 71. Thereby, the lighting control described later of the first plate 25a and the second plate 25b is made appropriate. 23 is a cross-sectional view showing a state in which incident light 31 emitted from the LEDs 71 installed in two rows in the base frame 13 is reflected by the base partition 23 and enters the first plate 25a and the second plate 25b. FIG.

  Then, when the incident light 31 that has entered the first plate 25a and the second plate 25b in this way reaches the printing units 30a and 30b in the process of following the above-described path, the diffuse reflection characteristic shows the result shown in FIG. Such diffused reflected light 32 is generated, and this light is emitted to the outside of the display plate 25, and it appears that the printing units 30a and 30b emit light. Note that the end surface 24a of the first plate and the end surface 24b of the second plate facing the LED 71 are preferably subjected to buffing (polishing ... mirror surface processing), which further increases the light emission intensity of the patterns (printing portions) 30a, 30b. FIG. 24 shows a state where light incident from the LED 71 is irregularly reflected by the printing units 30a and 30b.

  FIG. 25 schematically shows how the pattern (printing units 30a and 30b) of the display device 8 emits light. The entire display plate 25 (first plate 25a, second plate 25b) does not shine, but only the pattern (printing portions 30a, 30b) attached to the display plate 25 (first plate 25a, second plate 25b) shines. High decorative effect can be obtained.

  By the way, the emission color of the pattern (printing unit 30) is determined by the printing color of the printing unit 30 and the emission color (wavelength) of the LED 71. That is, if the printing color of the printing unit 30 is colorless or white, the emission color of the LED 71 is almost the emission color of the pattern (printing unit 30). If the printing color of the printing unit 30 is colored, a color obtained by mixing substantially the printing color of the printing unit 30 and the emission color of the LED 71 becomes the emission color of the pattern (printing unit 30). If the emission color of the LED 71 is white, the printing color of the printing unit 30 is almost the emission color of the pattern (printing unit 30).

  FIG. 26 is an explanatory diagram showing the relationship between the combination of the LED emission color (wavelength) and the pattern (printing unit) 30 printing color and the printing unit 30 emission intensity. In the figure, “A” indicates that the emission intensity is strong, “B” indicates that it is slightly strong, “C” indicates that it is slightly weak, “D” indicates that it is very weak, and “E” does not emit light. Represents each.

  The emission intensity of the pattern (printing unit) 30 depends on both the emission color (wavelength) of the LED 71 and the printing color of the printing unit 30. When the printing color of the printing unit 30 is black (or a color close to that), the color is black regardless of the emission color of the LED 71, and the pattern (printing unit 30) emits little light. Further, when the emission color of the LED 71 and the printing color of the printing unit 30 are the same, the emission intensity is high, and the emission intensity becomes weaker as the emission color of the LED 71 and the printing color of the printing unit 30 approach the complementary color relationship.

  For example, when the LED color is “red” and the print color is “green” or “blue”, the emission intensity is somewhat weak “C” because of the complementary color relationship or the relationship close to the complementary color. In addition, when the LED color is “blue” and the print color is its complementary color “red”, the light emission intensity becomes “D” which is very weak. Therefore, for example, if a blue pattern and a red pattern are printed on the first plate 25a and the color of the LED to be lit is switched between blue and red, only the red pattern emits light when the red LED is lit. Since only the blue pattern emits light when the LED is lit, the light emission location is switched, and a variety of decorative effects can be obtained.

  Next, the control circuit of the display device 8 will be described with reference to FIG. FIG. 27 is a principal block diagram of a control circuit in the display device 8. The control circuit of the display device 8 is mainly composed of an LED substrate 70, an LED panel 6, and an LED driver substrate 80. The LED driver substrate 80 is a CPU (central processing unit) 81 for overall control of the operation of the device. A ROM (Read Only Memory) 86, a RAM (Random Access Memory) 87, an input circuit 82, and an output circuit 83 are connected to the bus 84. The LED driver board 80 also includes a power circuit 89 connected to a power cord (not shown).

  The input circuit 82 is connected to a receiving circuit 88 that receives a signal from the remote control device 85 for setting the light emission pattern and light emission color of the LED 9 (LED panel 6) and the LED 71 (LED substrate 70) via the light receiving unit 16. In the output circuit 83, two sets of LED substrates 70 of the LED units 76 connected in series (serial connection) are connected in parallel. One of the two sets of LED boards 70 connected in parallel faces the first plate 25a, and the other faces the second plate 25b. Further, three LED panels 6a, 6b, and 6c that are similarly connected in series (serial connection) are connected to the output circuit 83.

  That is, the LED driver board 80 is supplied with electricity from a power supply (not shown) by the power supply circuit 89, and the CPU 81 is connected to the output circuit 83 based on a signal from the remote control device 85 acquired through the input circuit 82. The LED 71 (fixed display unit 3) attached to the LED substrate 70 and the LED 9 (scroll display unit 2) attached to the LED panel 6 are controlled to be lit.

  As described above, since the LED panel 6 and the LED substrate 70 are controlled by the single LED driver substrate 80, it is excellent in cost performance and can be easily controlled even in a limited space. Can be installed. As described above, the LED driver board 80 is attached to the left frame of the frame 12 with a screw or the like, and the back cover 17 can be removed from the frame 12. The LED driver board 80 can be maintained.

  Here, a light emission pattern and a light emission color set by the remote control device 85 in the fixed display unit 3 of the display device 8 will be specifically described with reference to FIG. FIG. 28 shows an example of a lighting pattern and a lighting color of the fixed display unit 3. In the description here, it is assumed that the patterns (printing portions) 30a and 30b are all printed in white, that is, the lighting color of the first plate 25a and the second plate 25b is the same as the emission color of the LED 71. .

  That is, as the lighting pattern or lighting color of the fixed display unit 3, for example, the one shown in FIG. 28 is conceivable. First, as the lighting color, the lighting colors of the first plate 25a and the second plate 25b are red, blue, One of seven colors of green, orange, purple, light blue, and white can be selected. The lighting color of the first plate 25a and the second plate 25b is based on the lighting control of the corresponding LED 71. Red, blue and green are individually lit for the red LED 71a, blue LED 71b and green LED 71c, and orange is the red LED 71a and the green LED 71c. The red LED 71a and the blue LED 71b are simultaneously lit, the light blue is the simultaneous lighting of the blue LED 71b and the green LED 71c, and the white is colored by the simultaneous lighting of the red LED 71a, the blue LED 71b and the green LED 71c.

  Next, as the lighting pattern, the combination of the lighting patterns of the first plate 25a and the second plate 25b are both constantly lit, always lit and blinking, both alternately blinking, both gradation, gradation and blinking, and constantly lit. One of six combinations of gradations can be selected.

  Various blinking may be considered from high-speed blinking to low-speed blinking. For example, the blinking may be appropriately set within a range of about 50 msec to 2 seconds. The gradation is a mode (fade-in / fade-out) of gradually turning on and off the color with shades of color, and the gradation is considered to be synchronous or asynchronous. That is, the synchronization is an aspect in which the gradation lighting times of the first plate 25a and the second plate 25b are the same and are turned on or off at the same timing, and the asynchronous is the first plate 25a and the second plate. Even when the gradation lighting time of 25b is the same, the lighting or turning off is performed at different timing (time lag). Various gradation lighting times and time lag times are conceivable. For example, the gradation lighting time may be appropriately set within a range of 5 to 20 seconds and the time lag time within a range of 2 to 18 seconds.

  Thus, in the present embodiment, the fixed display unit 3 is configured such that the pattern 30a of the first plate 25a and the pattern 30b of the second plate 25b overlap each other and a predetermined pattern is displayed on the display plate 25. That is, since the pattern 30b of the second plate 25b can also be seen through, the lighting pattern (lighting control) of the first plate 25a (pattern 30a) and the second plate 25b (pattern 30b) is relatively. Or the lighting effect of the first plate 25a (pattern 30) a and the second plate 25b (pattern 30b) is made more distinct, so that the decoration effect and the production effect of the display device 8 are greatly improved. Can do. Therefore, by displaying a short character string or image for advertising that is particularly appealing, such as a company name or a logo mark, on the fixed display unit 3, it is possible to display with a high advertising effect. In other words, the display device 8 scrolls and displays long sentences and images on the scroll display unit 2 and fixedly displays short character strings and images on the fixed display unit 3.

  In addition, the lighting control of the fixed display unit 3 is performed by the base partition 23 in the base frame 13 so that the incident light 31 emitted from the LEDs 71 installed in two rows is incident on the corresponding first plate 25a and second plate 25b. Therefore, the incident light 31 emitted from the LED 71 corresponding to the first plate 25a enters the second plate 25b and affects the lighting control (lighting color and lighting pattern) of the second plate 25b, or the second plate Incident light 31 emitted from the LED 71 corresponding to 25b does not enter the first plate 25a and affect lighting control (lighting color or lighting pattern) of the first plate 25a. That is, the lighting control of the fixed display unit 3 is independently performed by the base partition 23 in the base frame 13 without the first plate 25a and the second plate 25b being influenced by each other. Thereby, in the display device 8, the patterns 30a and 30b of the first plate 25a and the second plate 25b can be appropriately emitted with various lighting colors and lighting patterns desired.

  In the present embodiment, in the display plate 25, an example is shown in which the logo of a company or the like is formed on the first plate 25a, and the landscape of a cherry tree or the like is formed on the second plate 25b. The first plate 25a and the second plate The pattern 30 of 25b, the emission color, the lighting pattern, and the like are not particularly limited, and may be set as appropriate. For example, the types of colors may be increased by simultaneously lighting the red LED 71a, the blue LED 71b, and the green LED 71c. The color can be adjusted infinitely by changing the combination of the LEDs 71 to be lit and the emission intensity of each LED 71. For example, the light emission intensity can be adjusted by controlling the value of the current passed through the LED 71 and the on-time with a resistance value or software.

  FIG. 30 is a perspective view showing another example of the display plate 25. Up to now, a pattern having the property of diffusing light is formed directly on the display plate 25 by printing, but in this example, the film sheet 48 on which the pattern (light emitting portion) 30 that diffuses light is printed is formed on the second plate 25b. It is configured to stick. The film sheet 48 is a film-like sheet cut into the same shape as the second plate 25b.

  In this case, the pattern (light emitting portion) 30 may be printed on the back side of the film sheet 48 (on the side opposite to the surface attached to the second plate 25b). The reason for this is that the second plate 25b and the film sheet 48 can be adhered and adhered so that there is no gap, thereby increasing the light emission intensity of the pattern. When the pattern is provided on the back side, a colored transparent or colorless transparent film sheet 48 is used. When the pattern is provided on the surface side, the film sheet 48 may be opaque, or the film sheet 48 itself may have a function of producing a background color or a function as a reflector.

  FIG. 30 is a perspective view showing still another example of the display plate 25. Here, the cutting sheet 49 obtained by cutting the film sheet on which the pattern (light emitting unit) 30 is printed into the shape of the pattern is adhered to the first plate 25a.

  If the film sheet on which the pattern 30 is printed as shown in FIGS. 29 and 30 is attached to the display plate 25 (first plate 25a, second plate 25b), the design of the display device 8 is changed to the sheet (cutting sheet). Alternatively, it can be changed very easily by simply peeling off or sticking a film-like sheet), which leads to cost reduction when changing the design. In particular, in the cutting sheet 49, various designs can be formed by changing the way of combining a plurality of cutting sheets 49 and the arrangement when sticking to the display plate 25 (first plate 25a, second plate 25b).

  Even when the pattern is printed directly on the display plate 25 (first plate 25a, second plate 25b), if the original print is erased and a new design pattern is printed, the plate material (light guide plate) Recycling is also possible.

  FIG. 31 is a front view showing another example of the display device 8, and FIG. 32 is an exploded perspective view of the display device 108 shown in FIG. In this example, the display device 108 is a first plate 125a (display plate 125) in which the shape of the first plate is extended in the vertical direction and the upper part thereof is formed in a substantially semicircular curved surface. In other words, the display device 108 includes the frame 112 having the insertion groove 146 provided in the upper frame, and the first plate 125a is inserted into the insertion groove 146 from the lower side to attach the first plate 125a to the frame 112. The other configuration is the same as that of the display device 8 described above.

  In the display device 108 configured as described above, a pattern (line) 130a is also formed on the curved surface portion 151 protruding upward from the frame 112 in addition to the above-described pattern. Therefore, when the first plate 125a is manufactured, first, printing (pattern) is performed on the back surface of the flat light guide plate, and then the upper portion is bent into a substantially semicircular shape.

  Since the heat treatment is generated in the bending process, it is preferable here to employ an extruded plate (methacrylic resin, acrylic resin) manufactured by an extrusion manufacturing method that facilitates thermoforming as the light guide plate. However, as described above, the extruded plate is inferior in impact resistance and surface hardness compared to the cast plate. Therefore, in consideration of these, the first plate 125a is provided with a scratch-proof coating 147 for protecting the surface. ing. Note that the scratch-preventing coating 147 may be mixed with a photocatalyst (titanium oxide) that decomposes dirt.

  Further, the above-described reflective tape 26a is not attached to the first plate 125a. Therefore, in the display device 108 in which the first plate 125a thus configured is attached to the plate 112 as described above. The light emitted from the LED propagates inside the first plate 125a along a substantially semicircular shape formed by the curved surface portion 151 and the flat surface portion, and the character (company logo) 130a on the flat surface portion, The pattern (line) 130a of the curved surface portion 151 emits light. That is, as the display plate, not only a flat surface but also a curved display plate can be adopted, so that the display plate can be conspicuous and a high decorative effect can be obtained.

  Moreover, in this display device 108, the light incident from the lower end portion of the first plate 125a is emitted from the upper end portion as transmitted light 233 without attaching the reflective tape 26a, and illuminates the periphery of the upper end portion of the first plate 125a. As a result, the decorative effect is further enhanced. Therefore, buffing (polishing ... mirror finish) is applied not only to the lower end side of the first plate 125a on which the light from the LED is incident, but also to the upper end side of the first plate 125a. Is strengthening. However, the emission intensity of the pattern is slightly weakened accordingly.

  Next, a description will be given of lighting control in which LED substrates 70 are connected in parallel, and the light emission part of the pattern is moved in a certain direction by switching the color of light emitted from the light source unit. As described with reference to FIG. 26, when the emission color of the LED 71 and the printing color of the pattern (printing unit) 30 are the same, the emission intensity is strong, and the emission color of the LED 71 and the printing color of the pattern (printing unit) 30 are complementary colors. The closer to the relationship, the weaker the emission intensity.

  For example, when the color of the LED 71 (the color of light emitted from the light source) is “green” and the print color is “red”, the pattern hardly emits light, and when the print color is “green”, light is emitted strongly. Further, when the color of the LED 71 is “red” and the printing color is “green”, the pattern hardly emits light, and when the printing color is “red”, it emits intensely. Therefore, if patterns of “red” and “green” are formed on the display plate 325 and the color of the LED 71 is changed, the pattern can be selectively emitted.

  FIG. 33 shows an example in which a plurality of (three) red fish patterns 161 and green fish patterns 162 are formed on the first plate 325a. The seaweed 163 has a blue pattern and is formed on the second plate 325b.

  FIG. 34 is a principal block diagram of a control circuit in a display device using the display plate 325. As shown in this figure, three LED boards 70 corresponding to the first plate 325a are connected in parallel (parallel connection) to the output circuit 83 of the LED driver board 180, and other configurations are described above. This is the same as the control circuit shown in FIG.

  FIG. 35 shows an example of a display state when the light emission part of the pattern is moved in a certain direction. In this figure, lighting control is performed so that one fish swims and moves in a certain direction. A red fish pattern 161, a green fish pattern 162, and a blue seaweed 163 are drawn on the first plate 325a and the second plate 325b, respectively, as shown in FIG.

  In FIG. 6A, only the red LED 71a of the LED unit 76 corresponding to the right end of the first plate 325a is turned on, and in FIG. 5B, the green color of the LED unit 76 corresponding to the right end of the first plate 325a is turned on. Only the LED 71c is lit. Similarly, in FIG. 8C, only the red LED 71a of the LED unit 76 corresponding to the center of the first plate 325a is lit, and in FIG. 8D, the LED unit 76 corresponding to the center of the first plate 325a. Only the green LED 71c is lit. In FIG. 5E, only the red LED 71a of the LED unit 76 corresponding to the left end of the first plate 325a is turned on. In FIG. 8F, the green color of the LED unit 76 corresponding to the left end of the first plate 325a is turned on. Only the LED 71c is lit. The seaweed 163 lights only the blue LEDs 71b of all (three) LED units 76 corresponding to the second plate 325b, and emits blue light.

  By controlling the three LED substrates 70 corresponding to the first plate 325a in this order, the light emission part of the fish pattern moves from the right end to the left end of the display plate 325, and one fish displays these displays. A state of swimming on the plate 325 from the right end to the left end is displayed. As shown in this example, the LED substrates 70 are connected in parallel, and the lighting control of the LEDs 71 is performed in units of each LED substrate 70, thereby making it possible to perform display control in the horizontal direction in the display device compared to the case of connecting in series. Then, it becomes possible to sequentially emit light in a horizontal direction with a desired color in the display device 8 or to perform a more complicated light emission pattern. Thereby, the taste of the display device can be improved and the production effect can be enhanced. However, when the LED substrates 70 are connected in parallel, it becomes more complicated when the LED substrates 70 are increased than when they are connected in series.

  As is apparent from the above description, the display device 8 according to the embodiment of the present invention includes the dot matrix LED display device such as the LED panel 6 constituting the scroll display unit 2 and the fixed display unit 3 as described above. The scroll display unit 2 displays long character strings and images such as news articles and advertisements, while the fixed display unit 3 particularly appeals. It is possible to display short character strings and images for advertising purposes, such as company names and logo marks, and decorative displays, and thus LEDs that are excellent in decorative effects and directing effects and can display high advertising effects It becomes a light emitting panel.

  Although the embodiment of the present invention has been described with reference to the drawings, the specific configuration is not limited to that shown in the embodiment, and there are changes and additions within the scope not departing from the gist of the present invention. Are also included in the present invention.

  In the embodiment, the display plate 25 is formed by two light guide plates (the first plate 25a and the second plate 25b). However, this may be three or more, and a three-dimensional display as the number increases. It becomes. In addition, when the display plate 25 is viewed from the front, the pattern (printing unit) 30a of the first plate 25a and the pattern (printing unit) 30b of the second plate 25b are not overlapped. You may make it overlap. If the patterns overlap, the color will change regardless of whether the LED 71 is lit or not, and the taste of the display plate 25 will change. .

  The display device 8 may be a wall-mounted type or a desktop type, and the shape of the frame 12 may be appropriately designed according to these applications. Further, as shown in FIG. 36, an attachment stand 350 for attaching the display device 8 may be provided, which can be moved by providing a caster 351 (with a stopper) on the attachment stand 350 as shown in the figure. It may be. FIG. 36 is a front view when the display device 8 is attached to the attachment stand 350.

  Further, in the display device 8, the front plate 14 is formed so as to cover up to about several centimeters above the end of the LED 71 so that the base frame 13 functions as a blindfold member that hides the light streaks. Whether or not to hide the range is appropriately set. It may be several millimeters above the end of the LED 71. Moreover, you may comprise so that a player may intentionally show a light streak as a decoration effect. Instead of providing the frame itself with a blindfold function, a separate blindfold member may be attached to the frame or the display plate.

  Further, in the display device 8, the incident light 31 emitted from the LEDs 71 in which the base frames 13 are installed in two rows is always incident on the corresponding first plate 25 a and second plate 25 b, that is, adjacent incident light 31. The base partition 23 is formed in the same size as the front plate 14 so as to function as a prevention member for preventing the intrusion of the light. However, the size of the base partition 23 is appropriately set according to the directivity of the LED 71. You only have to set it. In short, it is only necessary to prevent the entrance of the adjacent incident light 31.

  Further, since the first plate 25a and the second plate 25b are spaced apart by the thickness of the base partition 23, a dustproof means for preventing dust and the like from entering from the spacing may be provided. As this dust-proof means, for example, a tape may be applied so as to straddle the end surface except the portion where the light of the first plate 25a and the second plate 25b is incident, or a plate may be attached to close the gap. Conceivable. Furthermore, if it does in this way, the relative position of the 1st plate 25a and the 2nd plate 25b can also be fixed more accurately. Of course, the first plate 25a and the second plate 25b may be fixed by pins or the like separately from the dustproof means.

  In addition, the fixed display unit 3 may be configured such that the lighting mode automatically changes when a predetermined time elapses. For example, the lighting color is changed in the morning, noon, and night to a color that matches it. Further, the display device 8 is not limited to external power supply (for example, AC 100V commercial power source) using a power cord, and may be configured to supply power from, for example, a fuel cell built in the frame 12.

  Further, the method of incorporating the light source into the frame 12 is not limited to the one exemplified in the embodiment. For example, the light source unit can be connected to a plurality of light source units, but may be configured to accommodate one light source unit corresponding to the width of the frame. Moreover, you may attach a light source directly to a flame | frame. That is, the LED substrate may be directly attached to the frame with a screw or the like.

  In addition, LED71 (LED board | substrate 70) may employ | adopt full color LED, Furthermore, not only a lamp type but a surface-mount type chip LED may be sufficient. Of course, the LED 9 (LED panel 6) may be a full-color LED as well.

  In the other embodiments, the light from the light source is irradiated only from one end face of the display plate. However, the light may be irradiated from two or more end faces. For example, when the display plate is long in the vertical direction and it is difficult for the light to reach the other end only by irradiating light from one end surface, the light may be irradiated from both opposite end surfaces.

  Furthermore, in the embodiment, an example of selectively emitting a pattern by combining the pattern color and the LED emission color has been described with reference to FIGS. 33 to 35. However, the pattern color, arrangement, size, etc. It is not limited to what was illustrated in the figure. Further, the pattern movement pattern is not limited to the pattern movement in order in a certain direction as shown in FIG. 35. For example, the pattern may be configured to advance while moving back and forth.

  Next, the main correspondence between the configuration of the claims and the embodiment of the present invention will be described. The display panel corresponds to the LED panels 6, 6a, 6b, and 6c, the first display unit corresponds to the scroll display unit 2, the control unit corresponds to the LED driver board 80, and the pattern is a pattern (printing unit) 30, 30a. 30b, the display plate corresponds to the plate 25, the first plate 25a, and the second plate 25b, the second display unit corresponds to the fixed display unit 3, and the end surface of the display plate is the lower end of the first plate (light 24a, the lower end of the second plate (light incident end surface) 24b, the light source portion corresponds to the LED unit 76, the frame corresponds to the base frame 13, and the blind portion corresponds to the front plate 14. The display plate partially formed in a curved shape corresponds to the display plate 125, the reflective material corresponds to the reflective tapes 26a and 26b, and is attached to avoid the range where the direct light from the light source part does not reach. A certain pattern corresponds to the pattern 302, the film sheet corresponds to the film sheet 48, the light emitting diode corresponds to the LED 71, the red LED 71a, the blue LED 71b, and the green LED 71c, the reflective layer corresponds to the reflective layer 74, the first display plate Corresponds to the first plate 25a, the second display plate corresponds to the second plate 25b, the end face of the first display plate corresponds to the lower end (light incident end face) 24a of the first plate, and the first light source section The second display plate corresponds to the LED unit 76 corresponding to the first plate 25a, the end surface of the second display plate corresponds to the lower end (light incident end surface) 24b of the second plate, and the second light source unit corresponds to the second plate 25b. It corresponds to the unit 76, the prevention member corresponds to the base partition 23, and the shielding member corresponds to dustproof means described later in the text.

It is a front view which shows the display apparatus concerning embodiment of this invention. It is a disassembled perspective view which shows a display apparatus. It is a front view which shows red LED, blue LED, and green LED arrange | positioned in 1 dot of an LED panel. It is a perspective view which shows a mode that a display plate is mounted | worn to a base frame. It is a disassembled perspective view which shows the display plate of a display apparatus. It is the front view and sectional drawing which show the flame | frame of a display apparatus. It is a 6-plane figure which shows the LED unit used as a light source of a display apparatus. It is the front view and top view of an LED board which are the components of the LED unit shown in FIG. FIG. 8 is a hexahedral view showing a support plate that is a component of the LED unit shown in FIG. 7. It is a fragmentary sectional view which shows the assembly state of a two-layer LED board. It is explanatory drawing which shows a mode that LED units are connected. It is a front view which shows the state which connected two LED units. It is a bottom view which shows the state which connected two LED units. It is a top view which shows the state which installed the LED unit in the base frame. It is a front view which shows the state which installed the LED unit in the base frame. It is the front view which showed the state which attached the display plate to the base frame with the internal structure. It is a right view of the display apparatus which removed the right wall of the right frame and the base frame. It is a disassembled perspective view of a 1st plate, a reflective tape, and a reflective sheet. It is a disassembled perspective view of a 2nd plate, a reflective tape, and a reflective sheet. It is explanatory drawing which shows the relationship between the directivity of LED, and an irradiation area | region. It is explanatory drawing which shows the relationship between the directivity of LED, an irradiation area | region, and arrangement | positioning of a suitable pattern. It is explanatory drawing which shows the path | route in the display plate of the light which injected from LED. It is sectional drawing which shows a mode that the incident light emitted from LED installed in 2 rows in the base frame reflects in a base partition, and injects into the 1st plate and the 2nd plate. It is explanatory drawing which shows the state in which the light which injected from LED diffusely reflects in a pattern (printing part). It is explanatory drawing which shows typically a mode that the pattern (printing part) of a display apparatus light-emits. It is explanatory drawing which shows the relationship between how to combine the luminescent color (wavelength) of LED, and the printing color of a pattern (printing part), and the luminescence intensity of a printing part. It is a principal part block diagram of the control circuit in a display apparatus. It is a list which shows an example of the lighting pattern and lighting color of a display apparatus. It is a perspective view which shows the example of the display plate which affixed the film sheet which printed the pattern. It is a perspective view which shows an example of the display plate which affixed the cutting sheet which cut the film sheet which printed the pattern into the shape of the pattern. It is a front view which shows the display apparatus of other embodiment using the display plate which formed one part in the curved surface form. It is a disassembled perspective view which shows the display apparatus of other embodiment using the display plate which formed one part in the curved surface form. It is explanatory drawing which shows an example of the display plate which formed the pattern of the red fish and the pattern of the green fish. It is a principal part block diagram of the control circuit in the display apparatus of other embodiment. It is explanatory drawing which shows an example of the display state when the light emission location of a pattern is moved to a fixed direction. FIG. 6 is a front view when the display device is attached to the attachment stand 350.

Explanation of symbols

2 ... scroll display part 3 ... fixed display part,
5 ... Front transparent plate 6, 6a, 6b, 6c ... LED panel,
7 ... back cover plate, 8 ... display device, 9 ... LED,
9a ... Red LED, 9b ... Blue LED,
9c ... Green LED, 12 ... Frame,
13 ... Base frame, 14 ... Front plate,
15 ... back plate, 16 ... light receiving part,
17 ... Wire harness, 18 ... Groove,
19 ... male connector, 23 ... base partition,
24a ... lower end of the first plate (light incident end face),
24b ... lower end of the second plate (light incident end face), 25 ... display plate,
25a ... 1st plate, 25b ... 2nd plate,
26a, 26b ... reflective tape, 27, 28 ... reflective sheet,
30, 30a, 30b ... pattern (printing part), 31 ... incident light,
32 ... reflected light, 47a, 47b, 47c, 47d ... stopper piece,
48 ... Film sheet, 49 ... Cutting sheet,
55 ... support plate, 56 ... fitting convex part,
57: fitting recess, 58a, 58b ... notch,
59a, 59b ... storage wall, 70 ... LED substrate,
71 ... LED, 71a ... red LED,
71b ... Blue LED, 71c ... Green LED,
72 ... LED mounting board, 73 ... Base board,
73a ... back surface, 74 ... reflective layer,
75a, 75b ... female connector, 76 ... LED unit,
77 ... Wire harness, 78 ... Male connector,
80 ... LED driver board, 81 ... CPU,
82 ... Input circuit, 83 ... Output circuit,
84 ... bus, 85 ... remote control device,
86 ... ROM, 87 ... RAM,
88 ... Receiving circuit, 89 ... Power supply circuit,
108 ... display device, 112 ... frame,
125 ... display plate, 125a ... first plate,
130a ... pattern (printing section), 146 ... insertion groove,
147 ... Anti-scratch coating, 151 ... Curved surface,
161 ... Red fish pattern, 162 ... Green fish pattern,
163 ... Blue seaweed pattern, 180 ... LED driver board,
233 ... transmitted light, 301 ... shaded area,
302 ... pattern, 325 ... display plate,
325a ... 1st plate, 325b ... 2nd plate,
350 ... Mounting stand, 351 ... Caster, Y ... Arrow

Claims (17)

A first display unit composed of a matrix type display panel in which a large number of display pixels are arranged in a dot shape, a control unit that selectively emits the display pixels to fix and move and display desired display contents,
A second display unit comprising a display plate with a light diffusing pattern attached to the light guide plate, and a light source unit for emitting light by irradiating the end surface of the display plate with light.
A display device comprising:   The display device according to claim 1, further comprising a frame that detachably supports the display plate, wherein the light source unit is attached to the frame.   The display device according to claim 1, wherein a predetermined gap is secured between an end surface of the display plate and the light source unit facing the end surface.   The display device according to claim 1, wherein a portion of the display plate that is within a predetermined distance from the light source unit is covered with a blindfold member.   The display device according to any one of claims 1 to 4, wherein a part or all of the display plate is formed in a curved surface shape.   The display device according to claim 1, wherein a reflective material is provided on an end surface of the display plate excluding a portion where light from the light source unit is incident.   7. The display plate according to claim 1, wherein the display plate is provided with a pattern in a vicinity of an end face facing the light source unit so as to avoid a range where direct light from the light source unit does not reach. The display device described.   8. The display device according to claim 1, wherein an end surface of the display plate on which light from the light source unit is incident is mirror-finished. 9.   9. The display device according to claim 1, wherein the display plate is a pattern printed on a light guide plate with a paint having a property of diffusing light.   The display device according to any one of claims 1 to 9, wherein the display plate is obtained by attaching a film sheet printed with a pattern with a paint having a property of diffusing light to a light guide plate.   11. The display device according to claim 1, wherein a light source of the light source unit is a light emitting diode, and a light reflection layer is provided on a surface of a mounting substrate of the light emitting diode.   The control unit also controls a lighting pattern of the light source unit, the light source unit can switch a color of emitted light, and the control unit switches a color of light emitted by the light source unit. The display device according to claim 1, wherein: The display plate does not emit light when irradiated with light of a specific color and emits light when a pattern of a color that emits light when irradiated with light of another color and the light of the specific color is irradiated The color pattern is formed for one or more specific colors,
The light source unit can switch the color of the emitted light among a plurality of colors including the one or more specific colors, and the control unit can change the color of the light emitted by the light source unit. The display device according to claim 12, wherein the light emitting portion is switched.   The order of switching the color of light emitted from the light source unit, the color of the pattern, and the arrangement are set so that the position of the pattern that does not emit light or the pattern that emits light sequentially moves in a predetermined direction. Display device.   The display plate includes a first display plate and a second display plate, and the first display plate is positioned on the front side of the second display plate, and a part or all of the first display plate and the second display plate are included. The display device according to claim 1, wherein a predetermined pattern is formed so as to overlap. The light source unit includes a first light source unit that irradiates light to an end surface of the first display plate and a second light source unit that irradiates light to an end surface of the second display plate.
A prevention member is provided for preventing light emitted from the first light source unit from entering the end surface of the second display plate and light emitted from the second light source unit from entering the end surface of the first display plate. The display device according to claim 15. The display device according to claim 15, further comprising a shielding member that covers a gap between the first display plate and the second display plate.

Images