TW201344656A - Light emitting display device - Google Patents

Abstract

A light emitting display device includes a first and a second light emitting module. The first light emitting module in which a plurality of first dots disposed includes at least one first light conductive plate and at least one first light emitting unit. The first light emitting unit is connected to the first light conductive plate. The second light emitting module is disposed on the first light emitting module. The second light emitting module in which a plurality of second dots disposed includes at least one second light conductive plate and at least one second light emitting unit. The second light emitting unit is connected to the second light conductive plate. The first light which emits through at least part of the first dot and the second light which emits through at least part of the second dot form a image simultaneously. The device in accordance with the present invention is advantageous in the simple circuit design and the space impression of images. The device is also suitable to apply in advertising, marketing or luminous billboard.

Description

Luminous display device

The present invention relates to a display device, and more particularly to an improved light guide plate and a light emitting display device thereof.

Looking at the static advertisements or marketing media commonly used on the road, there are no different types of light boxes, signboards, light panels, etc., but the form is different, but the principle is to use "light" to enhance the visual experience, in order to attract the attention of the eyes. Especially when combined with a specially designed light source, it can also visually enhance the effectiveness of advertising and attracting passers-by. With the increasingly fierce commercial competition, consumers have paid more attention to brand and product recognition than before, and these advertising devices have been widely used to mark trademarks and products, and become a very important propaganda medium.

The advertising devices commonly used in the early days are mostly made of plastics such as acrylic, and the advertising symbols are hollowed out on the surface, and light-emitting elements such as fluorescent lamps are built in the cabinet to allow light to pass through the surface of the cabinet. The advertising symbol constitutes a striking advertising content. However, in order to accommodate a fluorescent lamp, the illuminable advertising device must have a considerable thickness and thus occupy a considerable space, and requires nails or screws to support the weight. In addition, since the symbol is hollowed out on the surface, once the processing is completed, it cannot be changed, and the appearance is not changed. Moreover, the box body is huge, it is not easy to be flexibly arranged and installed, and the fluorescent lamp is sealed inside, which is inconvenient to maintain.

In addition, in terms of advertising effect, the fluorescent lamp is built in the box, because the space is limited, it cannot be comprehensively set, and the uniformity of illumination is not good, resulting in a regional brightness drop problem, causing visual trouble, and affecting the recognition degree. . If you want to increase the uniformity of illumination, you need to set up multiple fluorescent lamps, which will consume a lot of power and increase the production cost. It is also mentioned that the general fluorescent tube is a high-energy, mercury-containing light source, which does not meet the modern environmental protection needs.

In recent years, emerging light source technology has been gradually introduced into display applications, especially Light-Emitting Diode (LED), which has the advantages of high luminous efficiency, power saving and low power, and is a highly optimistic advertising device light-emitting element. . At present, the most common one is the advertising light box with the light-emitting diode as the backlight module. However, although its thickness is much smaller than the traditional light box, there is still room for improvement.

With the above issues, the use of light guide type advertising lighting is gradually gaining importance. The principle is to use the component to guide the light to change the path, so that the "line light source" placed on the side will guide the light forward by the total reflection plus the principle of refraction. Shooting produces the effect of the "surface light source" on the entire surface. Using this technique, in addition to controlling the direction of the light, the panel luminosity can also be uniformized. Compared with the fluorescent lamp as the light source or the light-emitting diode as the backlight, the combination of the light guide plate and the light-emitting diode further makes the advertising device light and thin. This type of emerging technology that uses the light emitted through the light guide to highlight advertising content has greatly replaced the trend of the original bulky light box.

However, the improvement of light guiding technology and light source has not met the needs of visual design. In the past, in order to present a variety of different light visual effects, the LEDs must use a complex circuit design so that different LEDs in the same backlight module or line source can flash or illuminate separately. In addition, the problem of the surface hollowing out of the symbol and the inability to change the design has not been solved, although some manufacturers have proposed to change the advertising appeal by directly replacing the printed matter with the printed matter directly in front of the light box. However, the amount of printed matter will hinder the light from being emitted, which will greatly reduce the visual effect.

Therefore, how to provide a light-emitting display device capable of properly utilizing the properties of the light guide plate, thereby utilizing a simple circuit design, can exhibit diverse light visual effects, and can be flexibly and conveniently adjusted according to the requirements of advertisements or display. In order to make the device light and thin on the basis of good display effect, it has become one of the important topics.

In view of the above problems, an object of the present invention is to provide a light-emitting display device capable of properly utilizing the properties of a light guide plate, so that a variety of light visual effects can be exhibited by a simple circuit design, and can be based on advertising demands or display needs. It is flexible and convenient to adjust to make the device light and thin on the basis of good display.

To achieve the above objective, a light-emitting display device according to the present invention includes a first light-emitting module and a second light-emitting module. The first light emitting module includes at least one first light guide plate and at least one first light emitting unit. The first light guide plate is provided with a plurality of first mesh points. The first light emitting unit is connected to the first light guide plate. The second lighting module is disposed on the first lighting module. The second light emitting module includes at least one second light guide plate and at least one second light emitting unit. The second light guide plate is provided with a plurality of second mesh points. The second light emitting unit is connected to the second light guide plate. The first light emitted by the first light emitting unit and passing through at least a portion of the first dot is combined with the second light emitted by the second light emitting unit and passing through at least a portion of the second dot to form a pattern.

In an embodiment, the illuminating display device further includes a third illuminating module. The third lighting module is disposed on the second lighting module. The third light emitting module includes at least one third light guide plate and at least one third light emitting unit. The third light guide plate is provided with a plurality of third mesh points. The third light emitting unit is connected to the third light guide plate. The first light, the second light, and the third light emitted by the third light source and passing through at least a portion of the third halftone dot together form a pattern.

In one embodiment, the first light-emitting module or the second light-emitting module includes an advertisement or a printed matter, and is disposed between the first light guide plate, the first light guide plate and the second light guide plate, or the second light guide plate.

In an embodiment, the first lighting unit is electrically connected to a first control circuit, and the second lighting unit is electrically connected to a second control circuit.

In an embodiment, the first lighting module and the second lighting module are replaceably disposed.

In an embodiment, the first light emitting module includes two first light guide plates and two first light emitting units.

In an embodiment, the second light emitting module includes two second light guide plates and two second light emitting units.

In one embodiment, the manner in which the dots are disposed includes screen printing, digital printing, spray coating, mechanical or laser processing, etching, or sand blasting.

In one embodiment, inks comprising highly reflective or highly refractive materials are used when dot dots are provided by screen printing, digital printing or spray coating.

In an embodiment, the first lighting unit and/or the second lighting unit are linear lighting units.

In an embodiment, the first light emitting unit and/or the second light emitting unit are light emitting diodes, laser diodes or cold cathode tubes.

In an embodiment, the first light guide plate and/or the second light guide plate are colored light guide plates.

According to the above description, a light-emitting display device provided by the present invention is configured to provide a light-emitting plate on a light guide plate to emit light as an exit of the light guide plate, so that light emitted by each group of light-emitting units passes through the light guide plate in the light guide plate. The program, that is, the reflection of the position of the non-mesh point in the light guide plate and the refraction of the position of the dot to allow the light to pass through the dot, so each group of the light-emitting modules can separately constitute a visual image. More importantly, because the light-emitting display device is provided with a multi-array light-emitting module, when overlapping each other, a design pattern can be formed, the pattern color can be enhanced, the brightness can be enhanced, and a three-dimensional layered visual effect can be created, which has an advertisement or logo application. Very easy to attract attention.

In addition, in practice, since the light-emitting module has independent light-emitting units and the layers are arranged differently, the dot arrangement on the light-emitting module can be separately designed, so even if each light-emitting module only controls flashing or continuous lighting with a simple control circuit, The visual pattern formed after the combination also has a complicated circuit to control the visual effect formed by each light spot one by one. The multi-layer lighting module is more convenient to replace at any time, and it is more convenient for applications such as changing patterns, design, assembly and maintenance, and even landscape use.

In particular, compared with the prior art, the present invention not only has the excellent light guiding effect of the conventional thin light guide plate, but also has the advantages of high luminous efficiency and energy saving when using, for example, a light emitting diode as a light source. . In addition, based on the multi-layer structure design, there is more space in the choice of light guide plate, dot and light source, and it can be easily changed, replaced at any time, and has high convenience, which can enhance the advertisement or logo content. Chroma and layering. Overall, the present invention is suitable for use in advertising marketing, landscape use, illuminated billboards, or as a light body for building materials display.

Hereinafter, a light-emitting display device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals.

FIG. 1A is an exploded perspective view of a light-emitting display device according to a preferred embodiment of the present invention. As shown in FIG. 1 , in the embodiment, the illuminating display device 1 includes a first illuminating module 11 and a second illuminating module 12 . The second light emitting module 12 is disposed on the first light emitting module 11 and has a layered feeling. However, the positional relationship is not limited. In other embodiments, the first lighting module and the second lighting module may also change the order relationship of the settings, or may include other structures between or outside, and the present invention is not limited thereto. .

As shown in FIG. 1 , in the embodiment, the first light emitting module 11 includes at least one first light guide plate 111 and at least one first light emitting unit 112 . The first light guide plate 111 is provided with a plurality of first mesh points 113, and the first light emitting unit 112 is connected to the first light guide plate 111. Similarly, the second light emitting module 12 also includes at least one second light guide plate 121 and at least one second light emitting unit 122. The second light guide plate 121 is provided with a plurality of second mesh points 123, and the second light emitting unit 122 is connected to the second light emitting unit 122. Two light guide plates 121. Of course, the first light-emitting module 11 and the second light-emitting module 12 may be surrounded by a casing or a frame (not shown) to fix the relative position, or may be unilaterally fixed only at the light-emitting unit.

In detail, the first light-emitting unit 112 and the second light-emitting unit 122 are disposed on the side surfaces of the first light guide plate 111 and the second light guide plate 121, compared with the backlight light source in which the light-emitting unit is disposed on the back of the light box. The illumination unit must be kept at a certain distance from the advertisement content to have a uniform and sufficient illumination effect. The side light arrangement of the present invention can greatly reduce the thickness and achieve the purpose of thinning the device.

In this embodiment, the first light emitting unit 112 and the second light emitting unit 122 may include a Light-Emitting Diode (LED), a Laser Diode (LD), or a Cold Cathode (Cold-Cathode). Fluorescent Lamp, CCFL). Of course, in other embodiments, the light-emitting unit may also select other light sources that are suitable for the thinning device and are small in size. In the embodiment, the first light emitting unit 112 and the second light emitting unit 122 are exemplified by the light emitting diodes.

In this embodiment, the materials of the first light guide plate 111 and the second light guide plate 121 may include polycarbonate (Polycarbonate, PC) or polymethylmethacrylate (PMMA). Of course, other light transmittance is good. Materials that are easy to manufacture can also be used. The first light guide plate 111 and the second light guide plate 121 are covered with a reflective material or provided with a reflective component, except for the side surfaces of the first light emitting unit 112 and the second light emitting unit 122. The light incident on the 112 and the second light emitting unit 122 can be substantially continuously reflected internally.

1B is a schematic view showing the combination of the light-emitting display device shown in FIG. 1, and FIG. 1C is a light path diagram of the light-emitting display device shown in FIG. 1. Referring to FIG. 1B and FIG. 1C simultaneously, the first light-emitting unit 112 emits and passes through at least a portion of the first light ray 114 of the first mesh point 113, and the second light-emitting unit 122 emits and passes through the second mesh point 123. At least a portion of the second rays 124 together form a pattern, and in particular, together form a visual or optical pattern. The following continues with the formation of the pattern.

It should be noted that forming the pattern together may include enhancing and/or changing the pattern formed by the first light 114 by the second light 124 emitted by the second light emitting unit 122. The enhanced form is, for example, that the first mesh point 113 and the second mesh point 123 are the same at the same projection position, so that the emitted light is added; and the changed form, for example, the light emitted by the second mesh point 123 forms the first mesh point 113. Part of the pattern (such as shown in Figure 1A), or provide a different color.

The first illumination module 11 and the second illumination module 12 can be the same or different, wherein the same aspect can effectively enhance the brightness and chroma of the pattern. In the case of the difference, the connection manner of the components and components included in the first light-emitting module 11 and the second light-emitting module 12 is still substantially the same, but the arrangement of the dots is different. In detail, through the difference of the arrangement of the first network point 113 and the second network point 123, different parts of the advertisement or the logo content can be expressed in each of the light-emitting modules, and the cover is similar to the "++" pattern as shown in FIG. 1A. And "TAIPEI". The "layout" referred to herein may include the size and density of a single dot and the distribution and density of dots.

In another embodiment, the first light-emitting module 11 or the second light-emitting module 12 further includes an advertisement or a printed matter (not shown), and is disposed on the first light guide plate 111, the first light guide plate 111, and the second Between the light guide plates 121 or the second light guide plate 121. By the light emitted by the light-emitting display device 1, the advertisement or the printed matter can be more clearly perceived, and because of the multi-layer structure and the light-emitting design of the light-emitting display device 1, the advertisement or the printed matter can freely select the set position, and It can be replaced at any time based on the content of the advertisement or logo.

2 is an exploded perspective view of a light-emitting display device in accordance with another embodiment of the present invention. Referring to FIG. 2, in the embodiment, the structure and components of the first light-emitting module 11a are substantially the same as those of the first light-emitting module 11 of the foregoing embodiment, but the first light-emitting module 11a has two first light guide plates. The first light-emitting unit 112a is formed by the first light-guide plates 111a. Thus, when the illuminating display device 1a is used as a large kanban, there is no problem that the light guiding distance inside the light guiding plate is too long, resulting in a decrease in brightness or unevenness in the illuminating area. In addition, different visual effects can be created in the same layer of the lighting module. Of course, the light-emitting module can have other combinations, for example, the second light-emitting module 12a. The second light-emitting unit 122a is connected to the other second light-guide plate 121a to form a second. Light emitting module 12a. In other words, the second light emitting units 122a are disposed on the same side of the corresponding second light guide plate 121a to cooperate with each other. The assembled second light-emitting module 12a can also have similar effects. The present invention is not limited thereto. In other embodiments, the light-emitting module may be formed by combining two light-emitting units, that is, the two light-emitting units are sandwiched between the two light guide plates.

3A is a schematic diagram of a combination of a light-emitting display device according to a preferred embodiment of the present invention, and FIG. 3B is a system block diagram of the light-emitting display device shown in FIG. 3A. Referring to FIG. 3A and FIG. 3B , the illuminating device 3 further includes a first illuminating module 31 and a second illuminating module 32 , and further includes a first control circuit 315 and a second control circuit 325 . The first lighting unit 312 is electrically connected to the first control circuit 315, and the second lighting unit 322 is electrically connected to the second control circuit 325. In this embodiment, since the dot pattern has been designed to present the pattern, and each layer of the light emitting module is only responsible for providing a part of the pattern, the first control circuit 315 or the second control circuit 325 can be simplified and eliminated. A single control circuit must control the design complexity and cost of each light source (such as each light-emitting diode) one by one, and achieve the same degree of multi-effect through a simple module level and dot arrangement, and more Layering.

In a specific implementation, in the illuminating display device 3, the plurality of second network dots 323 can form a pattern similar to "++", and the plurality of first network dots 313 can be formed into a pattern of "TAIPEI", and the first control circuit 315 controls The first light emitting unit 312 emits light into the first light guide plate 311 in a continuous lighting manner, and the second control circuit 325 controls the second light emitting unit 322 to emit light into the second light guide plate 321 in a manner of intermittent light emission. Therefore, when the illuminating display device 3 is noticed, the first ray 314 emitted by the first illuminating unit 312 and passing through the first halftone point 313 is seen, and the second illuminating unit 322 is emitted and passes through the second halftone point 323. Light rays 324 collectively form a pattern that includes a flashing and approximate "++" and a continuously illuminated "TAIPEI." Compared with the prior art, the backlight module of the light-emitting diode must be controlled one by one with complicated circuits, and the invention has significant circuit simplification advantages. Of course, in other embodiments, the first control circuit 315 and/or the second control circuit 325 can be changed according to requirements to express other illumination modes.

4 is a schematic enlarged view of a dot of a light-emitting display device according to a preferred embodiment of the present invention. As shown in FIG. 4 , taking the first light-emitting module 41 as an example, a plurality of first mesh dots 413 are disposed on the surface of the first light guide plate 411 , including screen printing, digital printing, spraying, mechanical or laser processing, Formed by etching or sand blasting. Wherein, when the first dot 413 is set by screen printing, digital printing or spraying, an ink comprising a highly reflective or high refractive material is used. By screen printing, an accurate pattern with a dot resolution of 120 to 1280 dpi can be formed on the first light guide plate 411, that is, the distance between the light spots presented is 10 mm to 0.1 mm, which is much smaller than that of the industry using the light-emitting diode. The resolution of the finished product as a light-emitting unit. Accordingly, by controlling the arrangement of the dots and adjusting the color of the ink, the light emitted through the first dots 413 can be transmitted to the viewer's eyes with a large number of spots and rich colors. As the light emitted from the first halftone dot 413 will be continuously reflected in the first light guide plate 411, the influence of stray light can be effectively reduced when viewing the device of the present invention. In addition, the screen printing design of the same density has the advantage of being able to produce a uniform pattern and producing an image of good quality.

As shown in FIG. 4 , the first light guide plate 411 can also be disposed with a plurality of fourth mesh points 417 , wherein the fourth mesh point 417 is smaller in size than the first mesh point 413 , but the density is higher, so that the entire area is visually formed to be bright. The feeling is different from the dot-like illumination of the first halftone 413.

Moreover, in the embodiment, the first light-emitting module 41 selects red ink to print a plurality of circular first dots 413 on the white first light guide plate 411. Under this condition, the high color of the pattern can be enhanced. saturation. The manner of providing color is not limited thereto, and a color first light guide plate 411 may be selected, and a first dot 413 of white or other color or shape is printed thereon. Through the various elastic combinations described above, the present invention can adjust the visual effect desired to be presented, and has a higher degree of freedom in color selection than conventional advertising devices.

The application of the light guide plate and the dot is understood by those skilled in the art to which the present invention pertains, and only the following is a brief description. The light that is incident on the light guide plate by the light-emitting unit will continuously reflect the light back into the light guide plate due to the reflective property of the light guide plate, so that the light has high light utilization efficiency. The light is not filled by the light guide plate due to reflection, and the uniform light is also formed. However, when a plurality of dots are printed, the optical condition of total reflection changes, and some of the light will be transmitted through the dots as a medium, and penetrated and emitted out of the light guide plate to form a designed pattern. In addition, the dot can further replace complex optical simulation techniques to meet lighting design requirements such as uniformity, gradient grayscale variation or color.

Please refer to FIG. 5 . It should be noted that the illuminating display device 5 further includes a third illuminating module 53 disposed on the second illuminating module 52 . The third light emitting module 53 includes at least one third light guide plate 531 and at least one third light emitting unit 532. The third light guide plate 531 is provided with a plurality of third mesh points 533, and the third light emitting unit 532 is connected to the third light guide plate 533. .

In this embodiment, the first light ray 514 and the second light ray 524 are combined with the third light ray 534 emitted by the third light emitting unit 532 and passing through the third halftone dot 533 to form a pattern. It should be noted that the first light ray 514, the second light ray 524 and the third light ray 534 are respectively emitted from the direction perpendicular to the light guide plate, wherein the first light ray 514 is not subjected to the second light guide plate 521 and the third during the traveling. The second light ray 524 is not affected by the third light guide plate 531 during the traveling. In other words, since the light emitting modules 51, 52, and 53 can transmit light to each other, the lower layer light emitting module emits Light will not be disturbed, so it can be replaced in any order, or replaced by other lighting modules. It is not only convenient for maintenance and replacement, but also can combine more visual effects.

According to the above description, a light-emitting display device provided by the present invention is configured to provide a light-emitting plate on a light guide plate to emit light as an exit of the light guide plate, so that light emitted by each group of light-emitting units passes through the light guide plate in the light guide plate. The program, that is, the reflection of the position of the non-mesh point in the light guide plate and the refraction of the position of the dot to allow the light to pass through the dot, so each group of the light-emitting modules can separately constitute a visual image. More importantly, because the illuminating display device is provided with a multi-array light-emitting module, when overlapping each other, a design pattern can be formed, brightness can be enhanced, and a three-dimensional layered visual effect can be created, which is highly attractive in advertising or signage applications. Characteristics.

In addition, in practice, since the light-emitting module has independent light-emitting units and the layers are arranged differently, the dot arrangement on the light-emitting module can be separately designed, so even if each light-emitting module only controls flashing or continuous lighting with a simple control circuit, The visual pattern formed after the combination also has a complicated circuit to control the visual effect formed by each light spot one by one. The multi-layer lighting module is more convenient to replace at any time, and it is more convenient for applications such as changing patterns, design, assembly and maintenance, and even landscape use.

In particular, compared with the prior art, the present invention not only has the excellent light guiding effect of the conventional thin light guide plate, but also has the advantages of high luminous efficiency and energy saving when using, for example, a light emitting diode as a light source. . In addition, based on the multi-layer structure design, there is more space in the choice of light guide plate, dot and light source, and it can be easily changed, replaced at any time, and has high convenience, which can enhance the advertisement or logo content. Chroma and layering. Overall, the present invention is suitable for use in advertising marketing, landscape use, illuminated billboards, or as a light body for building materials display.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1, 1a, 3, 5. . . Luminous display device

11, 11a, 31, 41, 51. . . First lighting module

111, 111a, 311, 411. . . First light guide

112, 112a, 312. . . First lighting unit

113, 313, 413. . . First outlet

114, 314, 514. . . First light

115, 315. . . First control circuit

12, 12a, 32, 52. . . Second lighting module

121, 121a, 521. . . Second light guide

122, 122a, 322. . . Second lighting unit

123, 323. . . Second outlet

124, 324, 524. . . Second light

125, 325. . . Second control circuit

417. . . Fourth outlet

53. . . Third lighting module

531. . . Third light guide

532. . . Third lighting unit

533. . . Third outlet

534. . . Third light

1A is an exploded perspective view of a light-emitting display device according to a preferred embodiment of the present invention;

1B is a schematic view showing the combination of the light-emitting display device shown in FIG. 1;

1C is a light path diagram of the light-emitting display device shown in FIG. 1;

2 is an exploded perspective view of a light-emitting display device according to another preferred embodiment of the present invention;

3A is a schematic diagram of a combination of another illuminating display device according to a preferred embodiment of the present invention;

3B is a system block diagram of the light-emitting display device shown in FIG. 3A;

4 is a schematic enlarged view of a dot of another illuminating display device according to a preferred embodiment of the present invention;

FIG. 5 is an exploded perspective view of a light-emitting display device according to still another preferred embodiment of the present invention.

1. . . Luminous display device

11. . . First lighting module

111. . . First light guide

112. . . First lighting unit

113. . . First outlet

12. . . Second lighting module

121. . . Second light guide

122. . . Second lighting unit

123. . . Second outlet

Claims (12)

A illuminating display device includes: a first illuminating module, comprising: at least one first light guiding plate, a plurality of first mesh points; and at least one first light emitting unit connected to the first light guide plate; and a second The illuminating module is disposed on the first illuminating module, the second illuminating module comprises: at least one second light guiding plate, which is provided with a plurality of second mesh points; and at least one second illuminating unit connected to the second light guiding plate The first light emitting unit emits a first light that passes through at least a portion of the first mesh points, and the second light emitting unit emits a second light that passes through at least a portion of the second mesh points. The rays together form a pattern. The illuminating display device of claim 1, further comprising: a third lighting module disposed on the second lighting module, the third lighting module comprising: at least one third light guiding plate, a plurality of third network points; and at least one third light emitting unit connected to the third light guide plate, wherein the first light, the second light, and the third light emitting unit emit and pass through at least one of the third mesh points A portion of the third ray collectively forms the pattern. The illuminating display device of claim 1, wherein the first illuminating module or the second illuminating module comprises an advertisement or a printed matter, and is disposed on the first light guide plate and the first light guide plate. The second light guide plate or the second light guide plate. The illuminating display device of claim 1, wherein the first illuminating unit is electrically connected to a first control circuit, and the second illuminating unit is electrically connected to a second control circuit. The illuminating display device of claim 1, wherein the first illuminating module and the second illuminating module are replaceably disposed. The illuminating display device of claim 1, wherein the first illuminating module comprises two first illuminating plates and two first illuminating units. The illuminating display device of claim 1, wherein the second illuminating module comprises two second illuminating plates and two second illuminating units. The illuminating display device of claim 1, wherein the manner of setting the dots comprises screen printing, digital printing, spraying, mechanical or laser processing, etching or sand blasting. The illuminating display device of claim 8, wherein when the dots are set by screen printing, digital printing or spraying, an ink comprising a highly reflective or high refractive material is used. The illuminating display device of claim 1, wherein the first illuminating unit and/or the second illuminating unit is a linear illuminating unit. The illuminating display device of claim 1, wherein the first illuminating unit and/or the second illuminating unit is a light emitting diode, a laser diode or a cold cathode tube. The illuminating display device of claim 1, wherein the first light guide plate and/or the second light guide plate is a color light guide plate.