JP3182109U - Illuminated display device - Google Patents

Abstract

Provided is an illumination display device capable of performing illumination display with partially different colors and capable of performing illumination display with one color (same color) as a whole.
An illumination display device 101 is for illuminating and displaying a predetermined display pattern, and includes a first light having a first light incident portion L1n at an end portion and a first scattering portion 11s on a lower surface L1d. A guide L1, an illumination member S1 disposed below the first light guide L1, and a color filter CF1 provided between the first light guide L1 and the illumination member S1, and the color filters are different from each other. It is characterized by being formed by color areas.
[Selection] Figure 5

Description

  The present invention relates to an illumination display device capable of illuminating and displaying a display unit of various electronic devices provided with a display unit that expresses characters, symbols, figures, and the like.

  An input device for a portable electronic device, an input device for a keyboard device, or an in-vehicle input device is provided with a display unit for expressing characters, symbols, figures, etc., and a light emitting diode (LED, Light) provided inside the device. The light emitted from a light source such as an Emitting Diode) is applied to the display unit so that it can be illuminated. Recently, various electronic devices have been diversified in function while being reduced in size and thickness, and attempts have been made to improve the design and decoration of the product surface in order to increase the added value of the product. . Therefore, an illumination display device used for various electronic devices has become important.

  As an example of the above-described illumination display device, Patent Literature 1 proposes an illumination display device 900 as shown in FIG. 12 is a diagram showing a part of the configuration of an illumination display device 900 including a conventional light guide member 910, and FIG. 12A is a perspective view showing the illumination display device 900. FIG. FIG. 12B is an enlarged cross-sectional view illustrating a configuration of a region A indicated by a one-dot chain line in FIG. The illuminated display device 900 shown in FIG. 12A is mounted on the circuit board 902 in the vicinity of one end face of the light guide member 910, the circuit board 902 disposed on the back surface thereof, and the light guide member 910. It mainly includes two light sources 905a and 905b that emit light of different colors. Further, as shown in FIG. 12, the light guide member 910 is configured by laminating a first light guide plate 915 and a second light guide plate 916, and the first light guide plate 915 is provided on one end surface of the light guide plate main body. The first light receiving unit 918 that receives light from the light source 905a is provided, and the second light guide plate 916 includes a second light receiving unit 919 that receives light from the light source 905b. The light source 905a and the light source 905b use side-emitting light emitting diodes (LEDs), the light source 905a is a light source that emits red light, and the light source 905b is a light source that emits blue light. And multicolor illumination is enabled by switching each light source (905a and light source 905b).

JP 2010-1987756 A

  However, in the illumination display device 900 of the conventional example, even if the light sources (905a and 905b) to be turned on are switched, it is not possible to perform illumination display with partially different colors.

  SUMMARY OF THE INVENTION The present invention solves the above-described problems, and an object thereof is to provide an illumination display device that can perform illumination display in partially different colors and can also perform illumination display with one color (same color) as a whole. .

  In order to solve this problem, an illuminated display device of the present invention is an illuminated display device for illuminating and displaying a predetermined display pattern, and has a first light incident portion at an end portion and a first scattering portion on a lower surface. And a color filter provided between the first light guide and the illuminating member, and a color filter provided between the first light guide and the illuminating member. The filter is formed by regions of different colors.

  According to this, it is possible to illuminate and display a predetermined display pattern in a partially different color with light of a different color depending on the area that has passed through the color filter. Further, by using only the light propagating through the first light guide or the light from the illuminating member, the entire display can be illuminated with one color (similar colors). Further, by combining the light propagating through the first light guide and the light from the illuminating member that has passed through the color filter, it is possible to perform illumination display in various colors.

  In the illuminated display device of the present invention, the color filter is a film having translucency, in which the different color regions are printed.

  According to this, it is not necessary to prepare a plurality of single color filter members for each color, and one color filter can be easily produced. In addition, various different color regions can be easily formed, and it becomes easy to deal with variety in illumination display.

  The illuminated display device of the present invention is characterized in that the first scattering portion is formed by printing ink having light scattering properties on the lower surface of the first light guide.

  According to this, compared with the case where the 1st scattering part is formed by mold processing, laser processing, etc., formation of the 1st scattering part is easy. Thus, an illuminated display device can be manufactured more easily.

  In the illumination display device of the present invention, the illumination member is a second light guide having a second light incident portion at an end portion and a second scattering portion provided on a lower surface.

  According to this, compared with the case where a light source is arrange | positioned directly on the lower surface side of a 1st light guide, an illumination display apparatus can be made thinner.

  The illuminated display device of the present invention is characterized in that the second scattering portion is formed by printing ink having light scattering properties on the lower surface of the second light guide.

  According to this, compared with the case where a prism part is formed by die processing, laser processing, etc., formation of a scattering part is easy. Thus, an illuminated display device can be manufactured more easily.

  Further, in the illumination display device of the present invention, the first light guide and the second light guide are members having a shape having a longitudinal direction and a transverse direction when viewed from above, and along the longitudinal direction. The region of the color filter is color-coded into a plurality of colors.

  According to this, the illumination color of the predetermined display pattern arranged in the longitudinal direction can be illuminated in a plurality of colors. This can enhance the gradation effect of the predetermined display pattern in the longitudinal direction.

  The illuminated display device of the present invention is characterized in that the illumination member is a light emission source.

  According to this, the color filter and the first light guide can be directly illuminated, and more light can be transmitted through the first light guide. As a result, the predetermined display pattern can be displayed even brighter.

  Further, the illuminated display device of the present invention is characterized in that a mask sheet having the predetermined display pattern as a transmission portion is provided above the first light guide.

  According to this, it is possible to shield light leaked from portions other than the display pattern with the mask sheet. As a result, the contour of the display pattern can be clearly defined and the display quality of the applied product can be improved as compared with the case where no mask sheet is used.

  In the illumination display device according to the present invention, the color filters provided between the first light guide and the illumination member are formed by different color regions, respectively, so that different color lights depending on the regions transmitted through the color filter. The predetermined display pattern can be illuminated and displayed in partially different colors. Further, by using only the light propagating through the first light guide or the light from the illuminating member, the entire display can be illuminated with one color (similar colors). Further, by combining the light propagating through the first light guide and the light from the illuminating member that has passed through the color filter, it is possible to perform illumination display in various colors.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view illustrating an illuminated display device according to a first embodiment of the present invention. It is a perspective view explaining the illumination display device of a 1st embodiment of the present invention. FIGS. 3A and 3B are diagrams for explaining an illuminated display device according to the first embodiment of the present invention, in which FIG. 3A is a top view seen from the Z1 side shown in FIG. 2 and FIG. It is the side view seen from the X1 side shown. It is a block diagram explaining the illuminated display apparatus of 1st Embodiment of this invention, Comprising: It is sectional drawing in the IV-IV line | wire shown to Fig.3 (a). It is the side lineblock diagram showing the composition in the illumination display device of a 1st embodiment of the present invention. It is a block diagram explaining the illumination display apparatus of 1st Embodiment of this invention, Comprising: It is the top view seen from the Z1 side shown in FIG. It is a schematic diagram explaining the illumination in the illumination display apparatus of 1st Embodiment of this invention. It is a schematic diagram explaining the illumination in the illumination display apparatus of 1st Embodiment of this invention. It is the side block diagram which showed the structure in the illuminated display apparatus of 2nd Embodiment of this invention. FIG. 10A is a diagram illustrating a first modification of the illuminated display device according to the first embodiment of the present invention, and FIG. 10A is a side configuration diagram illustrating a configuration of the illuminated display apparatus according to the first modification. (B) is the top view which showed the external appearance of the mask sheet. It is a top view explaining the modification 5 of the illumination display apparatus of this invention. It is the figure which showed a part of structure of the illumination display apparatus provided with the light guide member of a prior art example, Comprising: Fig.12 (a) is a perspective view which shows an illumination display apparatus, FIG.12 (b) is FIG. (A) It is sectional drawing which expands and shows the structure of the area | region A shown with the dashed-dotted line.

  Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment]
FIG. 1 is an exploded perspective view for explaining an illuminated display device 101 according to a first embodiment of the present invention. FIG. 2 is a perspective view illustrating the illuminated display device 101 according to the first embodiment of the present invention. FIG. 3 is a diagram for explaining the illumination display device 101 according to the first embodiment of the present invention. FIG. 3A is a top view as viewed from the Z1 side shown in FIG. 2, and FIG. These are the side views seen from the X1 side shown in FIG. FIG. 4 is a configuration diagram illustrating the illumination display device 101 according to the first embodiment of the present invention, and is a cross-sectional view taken along line IV-IV shown in FIG. FIG. 5 is a side configuration diagram schematically showing the configuration of the illuminated display device 101 according to the first embodiment of the present invention in order to facilitate the description thereof. 6 is a configuration diagram for facilitating the description of the illuminated display device 101 according to the first embodiment of the present invention, and is a top configuration diagram viewed from the Z1 side shown in FIG. In addition, the broken line shown in FIG. 6 has shown the division by the color of color filter CF1.

  As shown in FIGS. 1 and 4, the illuminated display device 101 according to the first embodiment of the present invention includes a first light guide L1 having a first light incident portion L1n at an end portion, and a lower portion of the first light guide L1. A second light guide L2 that is disposed and is the illuminating member S1, and a color filter CF1 provided between the first light guide L1 and the second light guide L2 are configured. In the first embodiment of the present invention, the diffusion layer 15 disposed above the first light guide L1, the reflective layer 16 disposed below the second light guide L2, and the first light guide L1. The first light guide light source LE1 disposed opposite to the first light incident portion L1n and the second light guide light source disposed opposite to the second light incident portion L2n of the second light guide L2. LE 2, a first light guide L 1, a second light guide L 2, a color filter CF 1, and a case 17 that houses the reflective layer 16 are provided. The illuminated display device 101 according to the first embodiment of the present invention is arranged below (back side) the display panel PN1 having a predetermined display pattern, illuminates the display panel PN1, and illuminates and displays the predetermined display pattern. Making it possible.

  The first light guide L1 is made of a synthetic resin of polycarbonate having translucency. As shown in FIG. 1, the first light guide L1 is a sheet-like rectangular shape having a longitudinal direction LD and a lateral direction SD as viewed from above. I am doing. As shown in FIGS. 1, 4, and 5, the first light guide L1 has a first light incident portion L1n that receives light from the first light guide light source LE1 at the end thereof. The light incident from the first light incident portion L1n is repeatedly reflected at the boundary between the upper surface L1u or the lower surface L1d (see FIG. 4) of the first light guide L1 and the air layer, and the first light guide L1. Propagate inside.

  Further, as shown in FIGS. 4 and 5, a first scattering portion 11s is provided on the lower surface L1d of the first light guide L1, and the light propagating through the first light guide L1 is the first scattering portion 11s. The first scattering unit 11s scatters the light and reflects it to the upper surface L1u side (Z1 direction shown in FIG. 4), and uses the light propagating through the first light guide L1 as reflected scattered light. Yes. Further, the first scattering unit 11s scatters and transmits the light from the second light guide L2, and enters the first light guide L1.

  The first scattering portion 11s uses a light-transmitting acrylic synthetic resin as a base material, and a desired material is dispersed and mixed in the base material synthetic resin. This desired material uses a material whose light transmission path changes inside, and is, for example, a powder of titanium dioxide, zirconium dioxide (zirconia), magnesium oxide, calcium carbonate, or the like. In addition, the first scattering portion 11s is produced by printing a light scattering ink (white ink), for example, containing titanium dioxide powder on the lower surface L1d of the first light guide L1 using a method such as screen printing. And it can carry out easily by hardening this ink (white ink). Thereby, compared with the case where the 1st scattering part 11s is formed by die processing, laser processing, etc., formation of the 1st scattering part 11s is easy.

  The first light guide light source LE1 preferably uses a side-emitting LED (Light Emitting Diode), and is mounted on the wiring board 19a as shown in FIGS. The light emitting surface LE1p is arranged in a direction in which light can be incident on the first light incident portion L1n. As described above, in the first embodiment of the present invention, as the height adjusting member for arranging the first light incident portion L1n of the first light guide L1 and the light emitting surface LE1p of the first light guide light source LE1 to face each other, As shown in FIG. 3A, the wiring substrate 19a is placed on the spacer P1 using the spacer P1. In this way, the first light guide light source LE1 is disposed on the side surface of the first light guide L1, and the light from the first light guide light source LE1 is propagated to the first light guide L1. The display device 101 can be thinned. The wiring board 19a is also mounted with a connector CN1 for supplying power from the outside to the first light guide light source LE1. Further, as the wiring board 19a, a commonly used flexible printed wiring board (FPC, Flexible printed circuits) is preferably used.

  Similar to the first light guide L1, the second light guide L2 is made of a synthetic resin of polycarbonate having translucency, and as shown in FIG. It has a rectangular shape with a short direction SD. As shown in FIGS. 1, 4 and 5, the end of the second light guide L2 has a second light incident portion L2n for receiving light from the second light guide light source LE2. The light incident from the second light incident portion L2n is repeatedly reflected at the boundary between the upper surface L2u or the lower surface L2d (see FIG. 4) of the second light guide L2 and the air layer, and the second light guide L2 Propagate inside.

  Further, as shown in FIGS. 4 and 5, a second scattering portion 12s is provided on the lower surface L2d of the second light guide L2, and the light propagating through the second light guide L2 is supplied to the second scattering portion 12s. The second scattering unit 12s scatters the light and reflects it to the upper surface L2u side (Z1 direction shown in FIG. 4), and uses the light propagating through the second light guide L2 as reflected scattered light. Yes. The light that has passed through the upper surface L2u of the second light guide L2 enters the first light guide L1. In this way, the illumination member S1 disposed below the first light guide L1 is the second light guide L2, so that the illumination display device 101 is made thinner than when the light source is directly disposed. be able to.

  Similarly to the first light guide L1, the second scattering portion 12s uses a light-transmitting acrylic synthetic resin as a base material, and a desired material is dispersed and mixed in the base material synthetic resin. This desired material uses a material whose light transmission path changes inside, and is, for example, a powder of titanium dioxide, zirconium dioxide (zirconia), magnesium oxide, calcium carbonate, or the like. Further, the second scattering portion 12s is produced by printing a white ink having a light scattering property and containing, for example, titanium dioxide powder on the lower surface L2d of the second light guide L2 by using a method such as screen printing. However, the ink can be easily cured by curing. Thereby, compared with the case where the 2nd scattering part 12s is formed by die processing, laser processing, etc., formation of the 2nd scattering part 12s is easy.

  Further, when the second light guide L2 is assembled, the second light guide L2 is received in the rectangular hole P1h of the spacer P1 shown in FIG.

  As with the first light guide L1, the second light guide light source LE2 preferably uses a side-emitting LED (Light Emitting Diode), and as shown in FIGS. 1, 4 and 5, a wiring board is used. It is mounted on 19b and is disposed at a position facing the second light incident portion L2n, and is disposed with the light emitting surface LE2p facing in the direction in which light can be incident on the second light incident portion L2n. In this way, in order to arrange the second light incident portion L2n of the second light guide L2 and the light emitting surface LE2p of the second light guide light source LE2 to face each other, in the first embodiment of the present invention, as shown in FIG. As described above, the wiring board 19 b is disposed below the spacer P 1, and the wiring board 19 b is placed on the case 17. As a result, the second light guide L2 and the second light guide light source LE2 accommodated in the rectangular hole P1h of the spacer P1 have substantially the same height. In this way, the second light guide light source LE2 is disposed on the side surface of the second light guide L2, and the light from the second light guide light source LE2 is propagated to the second light guide L2. Thereby, the illumination display device 101 can be thinned. The wiring board 19b is also equipped with a connector CN2 for supplying power from the outside to the second light guide light source LE2. Further, as the wiring board 19b, a commonly used flexible printed wiring board (FPC, Flexible printed circuits) is preferably used.

  The color filter CF1 is provided between the first light guide L1 and the second light guide L2 that is the illuminating member S1. In the first embodiment of the present invention, the color filter CF1 is formed on the lower surface F1d of the translucent film F1. ing. Further, the color filter CF1 is formed by regions of different colors, and as shown in FIG. 6, the color region of the color filter CF1 has a plurality of colors (C1a, C1b, C1c, C1d, C1e, C1f).

  The color filter CF1 is produced by printing different color inks using a method such as screen printing, drying, and curing, thereby forming different color regions. Thus, it is not necessary to prepare a plurality of single color filter members for different colors, and one color filter CF1 can be easily manufactured. In addition, various different color regions can be easily formed, and it becomes easy to deal with variety in illumination display. In the case where the color filter CF1 is not formed by printing, for example, the color filter can be formed by arranging light-transmitting films of different colors side by side.

  The diffusion layer 15 is made of a milky white film material and has a rectangular shape and is disposed above the first light guide L1 as shown in FIGS. The diffusion layer 15 diffuses light from the first light guide L1 side. The ink having the same light scattering property as the first scattering portion 11s and the second scattering portion 12s is used, and the upper surface L1u of the first light guide L1 or the lower surface of the display panel PN1 (the surface facing the first light guide L1). The diffusion layer 15 may be formed by printing, drying, and curing. Further, when the display panel PN1 itself is made of a light-transmitting material that diffuses light, a configuration in which the diffusion layer 15 is not used may be used.

  The reflective layer 16 uses a rectangular and white film base material, and is arranged below the second light guide L2 to assemble the reflective layer 16 as shown in FIGS. At this time, it is accommodated in the rectangular hole P1h of the spacer P1 shown in FIG. The reflection layer 16 diffuses and reflects the light from the second light guide L2 side, and returns the light to the second light guide L2 side again.

  The case 17 uses a synthetic resin material such as ABS (acrylonitrile butadiene styrene) or PET (polyethylene terephthalate), and extends from three ends of the base body 17k and the base body 17k as shown in FIGS. The side wall 17s is formed, and a base portion 17b extending in the longitudinal direction (Y1 direction shown in FIG. 1) from the remaining one end portion of the base body 17k. The case 17 accommodates the first light guide L1, the color filter CF1, the second light guide L2, the reflective layer 16, and the wiring board 19b on which the second light guide light source LE2 and the connector CN2 are mounted. The spacer P1 is placed on the base 17k, and the diffusion layer 15 is placed on the upper surface of the side wall 17s.

  The assembly of the illumination display device 101 configured as described above can be easily performed by sequentially placing each component on the case 17. Hereinafter, a brief description will be given with reference to FIGS.

  First, the wiring board 19b (see FIG. 1) on which the second light guide light source LE2 and the connector CN2 are mounted is placed on the base portion 17b of the case 17, and then the spacer P1 is placed on the base body 17k. At that time, as shown in FIG. 4, the second light guide light source LE2 is accommodated in the hole P1h of the spacer P1, and is disposed at the end of the hole P1h.

  Next, the second light guide L2 and the reflective layer 16 that have been bonded in advance with an adhesive layer AD1 (see FIG. 1) such as a double-sided tape are accommodated in the hole P1h of the spacer P1. At that time, as shown in FIG. 4, the second light incident portion L2n of the second light guide L2 and the light emitting surface LE2p of the second light guide light source LE2 are opposed to each other.

  Next, the color filter CF1 on which the wiring board 19a on which the first light guide light source LE1 and the connector CN1 are mounted is placed on the spacer P1, and then an adhesive layer AD2 (see FIG. 1) such as a double-sided tape is attached. Is attached to the upper surface of the spacer P1. Next, the first light guide L1 to which the adhesive layer AD3 (see FIG. 1) such as a double-sided tape is attached is attached to the upper surface of the color filter CF1.

  Finally, the diffusion layer 15 is placed on the upper surface of the side wall 17 s of the case 17 with an adhesive layer (not shown) such as a double-sided tape and is attached. Thus, the illumination display device 101 shown in FIG. 2 is assembled.

  Next, an illumination method of the illumination display device 101 configured as described above will be described. FIG. 7 is a schematic diagram for explaining illumination in the illumination display device according to the first embodiment of the present invention, and the color of the light source (first light guide light source LE1, second light guide light source LE2) and the color filter CF1. This is a combination example SA1 showing a combination with the colors of the regions. FIG. 8 is a schematic diagram for explaining illumination in the illuminated display device of the first embodiment of the present invention, and is an example of combination SA2 different from the example of combination SA1 in FIG. 7 and 8, AA indicates the color classification of the light emitted from the first light guide L1 toward the upper surface L1u, and BB indicates the configuration of the portion of the first light guide L1. CC represents the color of the area of the color filter CF1 provided between the first light guide L1 and the second light guide L2, and DD represents the lower side of the first light guide L1. The structure of the part of the 2nd light guide L2 arrange | positioned to is shown.

  First, in the combination example SA1 shown in FIG. 7, the light source color of the first light guide L1 is green, the color of the area of the color filter CF1 is red, green, and blue, and the light source color of the second light guide L2 is magenta. In addition, a region where the color filter CF1, the first scattering portion 11s, and the second scattering portion 12s are present and a region where there is no color filter CF1 are provided.

  As a result, as shown in FIG. 7, in the display region N1a, the scattered light scattered by the second scattering portion 12s of the second light guide L2 and radiated to the upper surface L2u side of the second light guide L2 is red in the color filter CF1. , The transmitted light (red) and the scattered light (green) scattered by the first scattering portion 11s of the first light guide L1 are mixed, and yellow light is generated on the upper surface L1u side of the first light guide L1. Is emitted. Similarly, in the display region N1b, transmitted light that has transmitted green through the color filter CF1 (slight magenta color transmitted) and scattered light (green) scattered by the first scattering portion 11s of the first light guide L1. They are mixed and emitted as light green light on the upper surface L1u side of the first light guide L1. Similarly, the display area N1c is emitted as light blue light toward the upper surface L1u of the first light guide L1.

  On the other hand, as shown in FIG. 7, the display area N1d is an area where the color filter CF1 is not provided, and is scattered by the second scattering portion 12s of the second light guide L2 toward the upper surface L2u side of the second light guide L2. The emitted scattered light (magenta color) and the scattered light (green) scattered by the first scattering portion 11s of the first light guide L1 are mixed and emitted as white light on the upper surface L1u side of the first light guide L1. doing. In this way, the light that has propagated through the light guide and the light of different colors depending on the region from the second light guide L2 (lighting member S1) that has passed through the color filter CF1 are combined to display in various colors. be able to.

  Further, since the display area N1e is an area where the second scattering portion 12s of the second light guide L2 is not provided, the scattered light from the second light guide L2 is not incident on the first light guide L1. Therefore, only the scattered light scattered by the first scattering portion 11s of the first light guide L1 is emitted as green light that is the light source color of the first light guide light source LE1 to the upper surface L1u side of the first light guide L1. Yes.

  Further, since the display area N1f is an area where the first scattering portion 11s of the first light guide L1 is not provided, the scattered light from the first light guide L1 is emitted to the upper surface L1u side of the first light guide L1. Not. Therefore, only the scattered light scattered by the second scattering portion 12s of the second light guide L2 and radiated to the upper surface L2u side of the second light guide L2 passes through the first light guide L1 as it is, and the first light guide L1 The light is emitted as magenta light that is the light source color of the second light guide light source LE2 to the upper surface L1u side. For example, when the entire display area is constituted only by the display area N1e or the display area N1f, the entire display area is obtained by using only light transmitted through the first light guide L1 or light from the second light guide L2 (lighting member S1). Can be illuminated with one color (similar colors).

  Further, even in the case of the display area N1a, the display area N1b, the display area N1c, and the display area N1d, when the entire display area is configured as one display area, the second light guide light source LE2 is turned off and the second light guide light source LE2 is turned off. By illuminating only with the light propagating through the one light guide L1, or by illuminating only with the light propagating through the second light guide L2 with the first light guide light source LE1 turned off, the whole color is the same (similar colors). ) Can also be illuminated.

  Next, in the combination example SA2 shown in FIG. 8, the light source color of the first light guide light source LE1 of the first light guide L1 is blue, the colors of the area of the color filter CF1 are red, green, and blue, and the second light The light source color of the guide L2 is white, and a region where the color filter CF1, the first scattering unit 11s, and the second scattering unit 12s are present and a region where there is no color filter CF1 are provided.

  As a result, as shown in FIG. 8, in the display region N2a, scattered light (white) scattered by the second scattering portion 12s of the second light guide L2 and radiated to the upper surface L2u side of the second light guide L2 is color filter. The red light of CF1 is transmitted, and the transmitted light is transmitted through the first light guide L1 and emitted as magenta light to the upper surface L1u side of the first light guide L1. Similarly, in the display region N2b, the transmitted light that has passed through the green color of the color filter CF1 passes through the first light guide L1 and is emitted as light blue light to the upper surface L1u side of the first light guide L1. Similarly, the display area N2c is emitted as blue-white light to the upper surface L1u side of the first light guide L1. In this way, it is possible to illuminate and display a predetermined display pattern in a partially different color with light of a different color depending on the region from the second light guide L2 (lighting member S1) that has passed through the color filter CF1.

  On the other hand, as shown in FIG. 8, since the display region N2d is a region where the color filter CF1 and the second scattering portion 12s of the second light guide L2 are not provided, the display region N2d is scattered by the first scattering portion 11s of the first light guide L1. Only the scattered light is emitted as blue light, which is the light source color of the first light guide light source LE1, to the upper surface L1u side of the first light guide L1.

  In addition, since the display area N2e is an area where the color filter CF1 and the first light scattering portion 11s of the first light guide L1 are not provided, the second light guide L2 is scattered by the second light scattering portion 12s of the second light guide L2. Only the scattered light radiated to the upper surface L2u side of the light passes through the first light guide L1 and is emitted as white light to the upper surface L1u side of the first light guide L1. For example, when the entire display area is configured only by the display area N2d or the display area N2e, the entire display area is obtained by using only the light propagating through the first light guide L1 or the light from the second light guide L2 (lighting member S1). Can be illuminated with one color (similar colors).

  Further, even in the case of the display area N2a, the display area N2b, and the display area N2c, when the entire display area is configured by one display area, the second light guide light source LE2 is turned off and the first light guide is turned off. Illuminating with only light that has propagated through L1, or by illuminating only with light that has propagated through the second light guide L2 with the first light guide light source LE1 turned off, the whole is illuminated with one color (similar colors). It can also be displayed.

  Further, the display area N2f is an area where neither the first scattering portion 11s nor the second scattering portion 12s is present, and thus is a region that does not shine.

  When light transmitted through the color filter CF1, such as N1a, N2b, and N1c shown in FIG. 7 and N2a, N2b, and N2c shown in FIG. 8, is used, the color filters of the same color system are used. By making the area slightly changed, it is possible to illuminate the same color system with a gradation effect. In addition, by making each light transmittance slightly different, it is possible to illuminate with the same color system and having a gradation effect of light and shade.

  As described above, the illuminated display device 101 according to the first embodiment of the present invention performs illumination display in various colors by using various combinations such as the combination example SA1 and the combination example SA2 described above. Can do. Further, since the color region of the color filter CF1 can be finely divided into a plurality of colors along the longitudinal direction LD of the first light guide L1 and the second light guide L2, a predetermined display pattern arranged in the longitudinal direction LD. It is possible to illuminate with different illumination colors.

  As described above, in the illumination display device 101 according to the first embodiment of the present invention, the color filters CF1 provided between the first light guide L1 and the illumination member S1 (second light guide L2) have different color regions. Therefore, it is possible to illuminate and display a predetermined display pattern in a partially different color with light of a different color depending on the region from the second light guide L2 (lighting member S1) that has passed through the color filter CF1. . Further, by using only the light propagating through the first light guide L1 or the light from the second light guide L2 (illuminating member S1), the whole can be illuminated and displayed with one color (similar color). Further, by combining the light propagating through the first light guide L1 and the light from the second light guide L2 (illuminating member S1) that has passed through the color filter CF1, it is also possible to perform illumination display in various colors. .

  Further, since the color filter CF1 is obtained by printing regions of different colors on the translucent film F1, it is not necessary to prepare a plurality of single color filter members for each different color, and the 1 A sheet of color filter CF1 can be manufactured. In addition, various different color regions can be easily formed, and it becomes easy to deal with variety in illumination display.

  In addition, since the first scattering portion 11s is formed by printing ink having light scattering properties on the lower surface L1d of the first light guide L1, the first scattering portion 11s is formed by mold processing, laser processing, or the like. In comparison, the formation of the first scattering portion 11s is easy. Thus, the illumination display device 101 can be manufactured more easily.

  Further, since the illumination member S1 is the second light guide L2 having the second light incident portion L2n at the end, the illumination display device is compared with the case where the light source is directly arranged on the lower surface side of the first light guide L1. 101 can be made thinner.

  In addition, since the second scattering portion 12s is formed by printing ink having light scattering properties on the lower surface L2d of the second light guide L2, the second scattering portion 12s is formed by mold processing, laser processing, or the like. In comparison, the formation of the second scattering portion 12s is easy. Thus, the illumination display device 101 can be manufactured more easily.

  Further, since the color region of the color filter CF1 can be finely divided into a plurality of colors along the longitudinal direction LD of the first light guide L1 and the second light guide L2, a predetermined display pattern arranged in the longitudinal direction LD. It is possible to illuminate with different illumination colors. This can enhance the gradation effect of the predetermined display pattern in the longitudinal direction LD.

[Second Embodiment]
FIG. 9 is a side configuration diagram showing the configuration of the illuminated display device 102 according to the second embodiment of the present invention. The illuminated display device 102 according to the second embodiment is mainly different from the first embodiment in that a light emission source LE3 is provided as the illumination member S2 instead of the second light guide L2. In addition, about the same structure as 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  As shown in FIG. 9, the illuminated display device 102 according to the second embodiment of the present invention is disposed below the first light guide L1 and the first light guide L1 having the first light incident portion L1n at the end. The light-emitting light source LE3 that is the illumination member S2 and a color filter CF2 provided between the first light guide L1 and the second light guide L2 are configured. In the second embodiment of the present invention, the light scattering layer 55 disposed between the light emission source LE3 and the color filter CF2, the diffusion layer 15 disposed above the first light guide L1, and the first And a first light guide light source LE1 disposed to face the first light incident portion L1n of the one light guide L1. The illuminated display device 102 according to the second embodiment of the present invention is arranged below (rear side) the display panel PN2 having a predetermined display pattern to illuminate the display panel PN2 and illuminate and display the predetermined display pattern. I have to.

  The light emitting light source LE3 (LE3a, LE3b) preferably uses a top-emitting LED (Light Emitting Diode) and is mounted on a wiring board 29 such as a printed wiring board (PWB), for example, as shown in FIG. As shown, the light emitting surface LE3p is disposed facing the lower surface L1d of the first light guide L1. Since the illumination member S2 is the light emission source LE3 (LE3a, LE3b), the color filter CF2 and the first light guide L1 can be directly illuminated, and more light can be transmitted through the first light guide L1. In addition, the light source color of one light emission light source LE3a and the other light emission light source LE3b may be the same color, or may be different colors. In the second embodiment of the present invention, two top-emitting LEDs are used as the light source LE3. However, the number of LEDs is not limited to two, and may be one or two or more. When a plurality of light sources are used and different light source colors are used, it is possible to perform illumination display with more various colors.

  As shown in FIG. 9, the color filter CF2 is provided between the first light guide L1 and the light emitting light source LE3 that is the illumination member S2. In the second embodiment of the present invention, the color filter CF2 is formed of the translucent film F2. It is formed on the upper surface F2u. Similarly to the first embodiment of the present invention, the color filter CF2 is formed by different color areas, and the color of the color filter CF2 area is divided into a plurality of colors along the longitudinal direction LD. .

  The color filter CF2 is produced by printing different color inks using a method such as screen printing, drying, and curing, thereby forming different color regions. Accordingly, it is not necessary to prepare a plurality of filters for each different color, and the color filter CF2 can be easily manufactured. In addition, various different color regions can be easily formed, and it becomes easy to deal with variety in illumination display. In the case where the color filter CF2 is not formed by printing, for example, the color filter can be formed by arranging translucent films of different colors side by side.

  The light scattering layer 55 is made of a milky white film material, and is attached to the wiring board 29 using an adhesive layer AD4 as shown in FIG. 9, and is disposed above the light emitting light source LE3 (LE3a, LE3b). The light scattering layer 55 scatters and transmits the light from the light emitting light source LE3 (LE3a, LE3b) and emits it to the color filter CF2 side. In addition, the ink which has the light scattering property similar to the 1st scattering part 11s and the 2nd scattering part 12s is used, the ink which has the light scattering property is printed on one side of the translucent base material, and is dried and cured. Thus, the light scattering layer 55 may be formed.

  The illumination method of the illumination display device 102 configured as described above includes the different color regions of the color filter CF2 and the first scattering of the first light guide L1, as described in the illumination display device 101 of the first embodiment. By combining the formation region of the portion 11s, the light source color of the first light guide light source LE1, and the light source color of the light emission light source LE3, it is possible to illuminate with display regions of various colors.

  As described above, in the illumination display device 102 according to the second embodiment of the present invention, the color filter CF2 provided between the first light guide L1 and the illumination member S2 (light emission light source LE3) is formed by regions of different colors. Therefore, it is possible to illuminate and display a predetermined display pattern in partially different colors with light of different colors depending on the area from the light emitting light source LE3 (lighting member S2) that has passed through the color filter CF2. Further, by using only the light propagating through the first light guide L1 or the light from the light emitting light source LE3 (lighting member S2), the whole can be illuminated and displayed with one color (similar color). Further, by combining the light propagating through the first light guide L1 and the light from the light emitting light source LE3 (lighting member S2) that has passed through the color filter CF2, it is possible to perform illumination display in various colors.

  Further, since the color filter CF2 is obtained by printing different color regions on the translucent film F2, there is no need to prepare a plurality of filters for each different color, and the color filter CF2 can be easily obtained. Can be produced. In addition, various different color regions can be easily formed, and it becomes easy to deal with variety in illumination display.

  In addition, since the illumination member S2 is the light emission source LE3, the color filter CF2 and the first light guide L1 can be directly illuminated, and more light can be transmitted through the first light guide L1. As a result, the predetermined display pattern can be displayed even brighter.

  In addition, this invention is not limited to the said embodiment, For example, it can deform | transform and implement as follows, These embodiments also belong to the technical scope of this invention.

  FIG. 10 is a diagram illustrating a first modification of the illuminated display device 101 according to the first embodiment of the present invention. FIG. 10A is a side view illustrating a configuration of the illuminated display device C101 according to the first modified example. FIG. 10B is a plan view showing the appearance of the mask sheet 18. FIG. 11 is a top view illustrating an illuminated display device C105 according to a fifth modification of the illuminated display device 101 of the present invention.

<Modification 1>
As shown in FIG. 10A, in addition to the illumination display device 101 of the first embodiment, a predetermined display pattern PT shown in FIG. 10B is used as a transmission part above the first light guide L1. You may comprise so that the mask sheet 18 may be provided. The portion other than the display pattern PT of the mask sheet 18 is more preferably formed in a black color so as to have a light shielding property as shown in FIG. For this reason, it is possible to block the leakage light from the portion other than the display pattern PT with the mask sheet 18. Thereby, compared with the case where the mask sheet 18 is not used, the outline of the display pattern PT can be made clear, and the display quality of the applied product can be improved. As an example of the predetermined display pattern PT, “C”, “O”, “L”, “O”, “R” are shown in FIG. 10B. However, the display pattern PT is not limited to this. Absent.

<Modification 2>
In the first embodiment, the second scattering portion 12s cures the light scattering property to scatter the light and reflect it to the upper surface side (Z1 direction shown in FIG. 4). The reflection layer 16 that diffusely reflects the light may be used as the second scattering portion, and the reflection layer 16 may be provided on the lower surface L2d side of the second light guide L2.

<Modification 3>
In the first embodiment, the light scattering property ink is printed on the lower surface L1d of the first light guide L1 to suitably provide the first scattering portion 11s. However, the lower surface L1d of the first light guide L1 is provided. May be processed into a concavo-convex shape to guide light to the upper surface L1u side.

<Modification 4>
In the first embodiment, the light scattering property ink is printed on the lower surface L2d of the second light guide L2 to suitably provide the second scattering portion 12s. However, the lower surface L2d of the second light guide L2 is used. May be processed into a concavo-convex shape to guide light to the upper surface L2u side.

<Modification 5>
In the first embodiment, as shown in FIG. 6, the color filter CF1 is arranged in a line along the longitudinal direction LD, and the color filter CF1 has a plurality of colors (C1a, C1b, C1c, C1d, C1e, C1f). ) Are color-coded, but this is not a limitation. For example, as shown in FIG. 11, the color display area (CC1 to CC12 shown in FIG. 11) of the color filter CF1 may be a plurality of columns (two columns in FIG. 11), or the color display area (FIG. 11). The color combinations in CC1 to CC12) shown in FIG. Further, the arrangement of the color display areas may be freely selected.

<Modification 6><Modification7>
In the said 1st Embodiment, although the reflection layer 16 was set as the structure using the white film base material, a metal film may be formed in the upper surface of a film base material, and it is good also as a reflection layer. Alternatively, a metal film may be directly formed on the lower surface L2d of the second light guide L2 to form a reflective layer. In addition, the production of the reflective layer can be easily achieved by using a metal such as sputtering or metal vapor deposition.

<Modification 8>
In the second embodiment, the light emitting source LE3 and the wiring board 29 are arranged on the lower surface L1d side of the first light guide L1 to configure the illumination display device 102. However, the light emitting light source LE3 and the wiring board 29 are not used, A light source such as a light bulb provided inside may be used as a component to provide an illuminated display device.

<Modification 9>
In the above embodiment, the first light guide L1 has a rectangular shape having the longitudinal direction LD and the short direction SD. However, the first light guide L1 is not limited to a rectangular shape, and may be, for example, a circular shape, an elliptical shape, or an L shape. Alternatively, it may be U-shaped or the like, or may have other shapes. In the case of a circular shape or an elliptical shape, a gradation that changes the color to a concentric shape is also possible.

<Modification 10>
In the above embodiment, a light emitting diode (LED) is preferably used as the light source (LE1, LE2, LE3). Any light source may be used.

  The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the scope of the object of the present invention.

CF1, CF2 Color filter L1 First light guide L1n First light entrance L1d Lower surface L1u Upper surface 11s First scattering portion L2 Second light guide L2n Second light incident portion L2d Lower surface L2u Upper surface S1, S2 Illuminating member 12s Second scattering portion 18 Mask sheet LD Longitudinal direction SD Short direction LE3, LE3a, LE3b Light emission source LE1p, LE2p, LE3p Light emission surface 101, 102, C101, C105 Illuminated display device

Claims (8)

An illuminated display device for illuminated display of a predetermined display pattern,
A first light guide having a first light incident portion at an end portion and a first scattering portion provided on a lower surface;
An illumination member disposed below the first light guide;
A color filter provided between the first light guide and the illumination member,
The illuminated display device, wherein the color filters are formed by regions of different colors.   The illuminated display device according to claim 1, wherein the color filter is a film having translucency, in which the regions of different colors are printed.   3. The illumination display device according to claim 1, wherein the first scattering portion is formed by printing ink having light scattering properties on a lower surface of the first light guide. 4.   4. The light illumination member according to claim 1, wherein the illumination member is a second light guide having a second light incident portion at an end portion and a second scattering portion provided on a lower surface thereof. 5. Illuminated display device.   The illumination display device according to claim 4, wherein the second scattering unit is formed by printing ink having light scattering properties on a lower surface of the second light guide. The first light guide and the second light guide are members having a shape having a longitudinal direction and a short direction as viewed from above,
6. The illuminated display device according to claim 4, wherein the region of the color filter is color-coded into a plurality of colors along the longitudinal direction.   The illumination display device according to claim 1, wherein the illumination member is a light emitting light source.   8. The illuminated display device according to claim 1, wherein a mask sheet having the predetermined display pattern as a transmission portion is provided above the first light guide.