JP3160166B2 - Multiple display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device used for an indicator of a combimeter mounted on an automobile, for example. The present invention relates to a multiple display device capable of clearly displaying transmitted illumination.

[0002]

2. Description of the Related Art FIG. 6 shows a conventional indicator incorporated in a vehicle combimeter, wherein reference numeral 20 denotes a housing having a plurality of compartments 20a, 20b, 20c connected in series.
Is a compartment 20a adjacent to the indicator housing 20,
The design lens 21 is mounted over the 20b and 20c, and the design lens 21 has display portions 22 and 23 of different design patterns at portions corresponding to the compartments 20a, 20b and 20c, respectively.
24 is light-transmitted by printing, and portions other than the display portions 22, 23, and 24 are printed in black to form light-impermeable portions.

[0003] Lighting bulbs 25, 26, 27 as light sources are provided on the bottom walls of the compartments 20a, 20b, 20c.
By illuminating the illumination bulbs 25, 26, and 27, light emitted from the back of the design lens 21 is transmitted through the display units 22, 23, and 24 to illuminate and display individual design patterns. It is.

[0004]

In order to display a plurality of different design patterns as described above, the compartments 20a,
20b, 20c and display portions 22, 23,
24 and the illumination bulbs 25, 26, 27 must be provided independently of each other in the indicator housing 20, and the display position must be set as a plurality of adjacent positions. Not only is the degree of freedom of the installation layout greatly restricted, but also the size of the combimeter increases.

Accordingly, the present invention provides a multiple display which can individually and clearly display a plurality of different design patterns at one display position independently without overlapping, and thereby realize miniaturization. An apparatus is provided.

[0006]

According to the first aspect of the present invention, a display portion of an appropriate design pattern is made to be light transmissive, and light in a specific wavelength range is reflected on portions other than the display portion, but light in other wavelength ranges is reflected. A plurality of design lenses each having a different light reflection characteristic and a design pattern of a display portion subjected to a masking process for transmitting light are superimposed and mounted on a housing, and each housing is provided in the housing in accordance with the light reflection characteristic of each design lens. A plurality of light sources that emit light of different specific wavelengths and irradiate light from the back of the superimposed design lens are provided, and each design pattern of the plurality of design lenses is individually separated from the plurality of light sources. It is displayed independently in the same place by lighting.

According to a second aspect of the present invention, the display portion of each design lens is made colorless and transparent, and a plurality of light sources disposed in the housing have different emission colors.

[0008]

According to the first aspect of the present invention, when a light source that emits light of one specific wavelength among a plurality of light sources is turned on, other display lenses that do not correspond to the wavelength of the light will mask the display unit and its surroundings. In the design lens corresponding to the wavelength of the light, the light of the specific wavelength is transmitted through the display portion, and the light is reflected by the surrounding masking processing portion. Only the design pattern of the design lens corresponding to the wavelength is displayed by transmitted illumination.

As described above, even if a plurality of design lenses and a plurality of light sources are integrated into one housing, only the design pattern of the design lens corresponding to the light wavelength of the specific light source is clearly transmitted. Since the display can be illuminated, the size of the display device can be reduced without any hindrance to the transmission illumination display function, and the space occupied by the display device can be significantly reduced to increase the degree of freedom in the layout of the display device. can do.

According to the second aspect, when one light source among a plurality of light sources having different emission colors is turned on, another display lens which does not correspond to the wavelength of the emission color of the turned on light source has a display portion and its surroundings. The light is transmitted through the masking portion, and in the design lens corresponding to the wavelength of the emission color, the light is transmitted through the display portion, and the light is reflected by the surrounding masking portion. Only the design pattern of the design lens corresponding to the wavelength is displayed in the transmitted light with the color tone of the emission color of the light source.

Therefore, a plurality of different design patterns can be illuminated and displayed in one display position in a color tone corresponding to the lighting light source without overlapping, and the displayed contents can be more clearly identified.

According to the third aspect, one of the plurality of light sources is provided.
When one light source emits light of one emission color, the other design lens that does not correspond to the wavelength of this emission color transmits light through the display unit and the surrounding masking processing part,
In a design lens corresponding to the wavelength of the emitted color, light is transmitted through the display portion, and light is reflected at a surrounding masking portion, so that only the design pattern of the design lens corresponding to the wavelength of the emitted color is aspheric. After passing through the lens, it is independently guided to the same place on the screen plate, and the design pattern is projected on the screen plate.

When the light source emits light of another emission color, similarly, only the design pattern of the design lens corresponding to the wavelength of this emission color passes through the aspherical lens and is independently projected on the same portion of the screen plate. It is.

Therefore, by selectively emitting a plurality of light-emitting colors by each light source, a plurality of different design patterns can be selectively displayed on the screen plate.

In a lens having an aspheric surface, the radius of curvature of the surface is not constant over the entire surface as in the case of a spherical surface, but varies depending on the location of the surface. For this reason,
The resolution (reflection) is improved off the optical axis, which cannot be compensated for by the spherical surface, that is, up to the outer peripheral edge of the display portion of the design lens, and the design pattern is clearly displayed. In addition, since the focal length of the lens is shortened by using an aspheric surface, the entire length of the display device can be shortened.

According to the fourth aspect, one of the plurality of light sources is provided.
When one light source emits light of one emission color, the other design lenses that do not correspond to the wavelength of this emission color transmit light through the display unit and the surrounding masking processing portion,
In a design lens corresponding to the wavelength of the luminescent color, light passes through the display portion, and light is reflected at a surrounding masking portion, so that only the design pattern of the design lens corresponding to the wavelength of the luminescent color is turned on. Then, the light goes straight through the lens corresponding to, and is independently projected as it is on the screen plate at the same place as the other overlapping design patterns.

When the light source emits light of another emission color, similarly, only the design pattern of the design lens corresponding to the wavelength of this emission color goes straight through the lens, and the other design patterns on the screen plate overlap each other. And are projected independently in the same place as.

Therefore, a plurality of different design patterns can be selectively displayed on the screen plate by selectively emitting a plurality of emission colors with each light source.

Since the center axis of the lens provided for each of the light sources is made coincident with the center axis of the light emitted by the light source corresponding to the lens, the light emitted from the light source has directivity. However, the irradiated light travels straight toward the screen plate in a well-balanced manner, and the resolution of the design pattern can be dramatically improved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a rectangular box-shaped housing having an open upper portion, and a plurality of, for example, three design lenses 2, 3, 4 and a smoke filter 1 are provided in the open portion.
5 are superimposed and mounted via a retainer 5.

Each of the design lenses 2, 3, and 4 has light-transmitting display portions 6, 7, and 8 having different design patterns, and portions 9, 10 other than the display portions 6, 7, and 8 are formed. ,
11 is subjected to a masking process for reflecting light in a specific wavelength range and transmitting light in other wavelength ranges, and these masking portions 9, 10, and 11 have different light reflection characteristics.

As the design lenses 2, 3, and 4, dichroic mirrors can be used effectively. In this embodiment, a design lens 2 that reflects a red luminescent color at its masking portion 9 is used. The lens 3 uses a masking portion 10 that reflects green emission color, and the design lens 4 uses the masking portion 11 that reflects blue emission color.

The display portions 6, 7, and 8 of the design lenses 2, 3, and 4 are all colorless and transparent.

Then, light of a specific wavelength different from each other is emitted on the inner bottom portion of the housing 1 in accordance with the light reflection characteristics of each of the design lenses 2, 3, and 4. The three light sources 12, 13, and 14 for irradiating light from the back of the camera are provided.

In the present embodiment, as the light sources 12, 13, and 14, LEDs capable of obtaining luminescent colors corresponding to the light reflection characteristics of the design lenses 2, 3, and 4 are used.

That is, the design lens 2 has a characteristic of reflecting 100% of red light having a wavelength of 660 nm at the masking portion 9 and transmitting emitted light of other wavelength ranges as shown by the line a in FIG. Therefore, an LED that emits red light having a wavelength of 660 nm is used as the light source 12.

The design lens 3 has a characteristic of reflecting 100% of green light having a wavelength of 550 nm at the masking portion 10 and transmitting light of other wavelengths as shown by the line b in FIG. Therefore, an LED that emits green light having a wavelength of 550 nm is used as the light source 13.

Further, the design lens 4 has a characteristic that 100% of blue light having a wavelength of 450 nm is reflected by the masking portion 11 and light emitted in other wavelength ranges is transmitted as shown by the c-line in FIG. Therefore, an LED that emits green light having a wavelength of 450 nm is used as the light source 14.

According to the structure of the above-described embodiment, when the LED 12 is turned on to emit red light, the red light is applied not only to the display portions 8 and 7 of the design lenses 4 and 3 but also to the masking portions 11 around them. , 10 are transmitted, but the design lens 2
Then, the red light is transmitted through the display section 6 and the red light is reflected by the masking processing section 9.

As a result, only the design pattern of the display section 6 of the design lens 2 is transmitted and illuminated with red light by turning on the LED 12.

When the LED 13 is turned on to emit green light, the green light passes through the display portion 8 and the masking processing portion 11 of the design lens 4, and the green light passes through the display portion 7 of the design lens 3, The light is reflected by the processing portion 10.

The green light that has passed through the display unit 7 passes through the display unit 6 and the masking processing portion 9 of the design lens 2, so that by turning on the LED 13, only the design pattern of the design lens 3 is transmitted and displayed with green light. You.

When the LED 14 is turned on to emit blue light, the blue light passes through the display section 8 of the design lens 4 and is reflected by the masking portion 11.

The blue light that has passed through the display section 8 is transmitted not only through the display sections 7 and 6 of the design lenses 3 and 2 but also through the masking portions 10 and 9 thereof. Only the design pattern is transmitted and displayed with blue light.

Accordingly, the three design lenses 2, 3, 3 having the display portions 6, 7, 8 having different design patterns as described above are formed.
Even if the specific LED 12, 13 or 14 is lit even if the LED 4 or 4 is mounted on the housing 1, the design lens 2 or 4 corresponding to the wavelength of the luminescent color of the lit LED 12, 13 or 14 Only one of the design patterns 3 or 4 can be clearly and transparently illuminated and displayed with a specific emission color through the smoke filter 15 and exhibit a display function comparable to that of the conventional transmissive illumination display device. Can be.

Also, since the three design lenses 2, 3, 4 and the three LEDs 12, 13, 14 are intensively assembled in one housing 1, miniaturization can be realized. When used as an indicator of a combimeter for use, there are advantages that the space occupied by the indicator can be reduced, the degree of freedom of its layout can be increased, and the size of the combimeter can be reduced.

In particular, in this embodiment, as described above, 1
Since the three different design patterns can be individually displayed at the three display positions in a color tone corresponding to the lighted LED 12, 13 or 14 without overlapping, the displayed contents can be more clearly identified.

Incidentally, the design lenses 2, 3, 4 and the LED 1
Combinations of 2, 13, and 14 are not limited to those in the above-described embodiment, but can be variously selected according to the application.

FIG. 3 shows a second embodiment of the present invention.
The housing 30 includes an upper cover 31 and a lower cover 32, and incorporates therein a light source that emits a plurality of emission colors, for example, a plurality of two-color LEDs 33 that emit red light and green light and a lens assembly 34. is there.

An opening 35a is formed in the front cover 35, and a transparent or translucent screen plate 36 is mounted in the opening 35a.

In the lens assembly 34, a plurality of, for example, two design lenses 37 and 38 are superimposed and incorporated.

The design lenses 37 and 38 form display portions 39 and 40 having a plurality of different design patterns, respectively.
The portions 41 and 42 other than the display portions 39 and 40 are subjected to a masking process of reflecting the light of the emission color in the specific wavelength range of the LED 33 but transmitting the light of the emission color in the other wavelength ranges. These masking portions have different light reflection characteristics.

As the design lenses 37 and 38, dichroic mirrors are used in the same manner as in the above-described embodiment. In this embodiment, a design lens 37 that reflects a red light-emitting color at its masking portion 41 is used. The masking portion 42 reflects a green light emission color.

In this embodiment, each of the design lenses 37,
Reference numeral 38 denotes display portions 39 and 40 on which three different types of different design patterns are provided in the vertical direction.
9 and 40 are both colorless and transparent.

In the present embodiment, three LEDs 33 are arranged in the vertical direction in accordance with the number of the display portions 39 and 40. The image is projected around the center point P on the screen plate 36 on the side of the unit cover 35.

Each LED 33 has an LE interposed between a rising portion 32 a of the lower cover 32 and the lens assembly 34.
They are separated from each other by a D guide 43.

The lens assembly 34 includes a composite condenser lens 44, a display lens 45, a composite second magnifying lens 46, and a composite first magnifying lens 47 in this order from the LED 33 side.

The composite condenser lens 44 transmits the light from the LED 33 to the screen 3
The surface 44a on the display lens 45 side corresponding to each LED 33 is formed to be aspherical.

A second lens light shielding frame 48 is provided between the display lens 45 and the composite second magnifying lens 46 in order to prevent light guided from the composite condenser lens 44 from leaking to an adjacent optical path. .

Therefore, the design lenses 37, 38
It is sandwiched between the lens light shielding frame 48 and the display lens 45.

The composite second magnifying lens 46 and the composite first magnifying lens 47 magnify the projected image of the design pattern of the design lenses 37 and 38 illuminated by the LED 33. 2 magnifying lens 4
A first lens light shielding frame 49 for preventing light from the 6 side from leaking to an adjacent optical path is provided.

The compound second magnifying lens 46 is
The surfaces 46a and 46b on both sides corresponding to D33 are formed as aspherical surfaces.

The compound first magnifying lens 47 also has aspherical surfaces 47a and 47b on both sides corresponding to the respective LEDs 33.

According to the structure of this embodiment, a plurality of LEDs
When one of the LEDs 33 emits, for example, red light, the LED 33 passes through the design lenses 37 and 38 by the composite condenser lens 44 corresponding to the lighted LED 33, and goes to the center point P of the screen plate 36.

Design lens 38 not corresponding to the wavelength of red light
Then, the display unit 40 and the surrounding masking processing unit 4
2 transmits the red light, and the design lens 37 corresponding to the wavelength of the red light transmits the red light through the display portion 39 and reflects the red light at the surrounding masking processing portion 41. Only one of the design patterns of the design lens 37 corresponding to the wavelength is magnified by the composite second magnifying lens 46 and the composite first magnifying lens 47, respectively, and is projected around the center point P of the screen plate 36.

When the LED 33 emits green light,
Similarly, only one of the design patterns of the design lens 38 corresponding to the wavelength of the green light corresponds to the point P at the center of the screen plate 36.
It is magnified and projected around.

Accordingly, by selectively emitting red light and green light by each LED 33, a plurality of different design patterns can be selectively projected on the screen plate 36, and the display position is fixed, so that the display is constant. Can be easily confirmed, and the merchantability can be improved.

Here, each of the compound condenser lens 44, the compound second magnifying lens 46, and the compound first magnifying lens 47 of the lens assembly 34 does not have a constant radius of curvature over the entire surface like a spherical surface, but has a constant surface radius. It depends on the location.

For this reason, the resolution (image) can be improved off the optical axis, which cannot be compensated for by the spherical lens, that is, to the outer peripheral ends of the display portions 39 and 40 of the design lenses 37 and 38.
Design patterns can be clearly displayed.

In the case of a normally spherical lens, the focal length is shortened by reducing the radius of curvature, while on the other hand, the aberration is increased and the resolution is deteriorated. However, by using an aspherical surface, the deterioration of the resolution can be avoided. There is no problem even if the focal length is shortened, and the display portions 39, 4 of the design lenses 37, 38
The distance from 0 to the screen of the screen plate 36 can be reduced, and the total length L of the display device can be reduced.

The embodiment shown in FIG. 5 is a modification of the embodiment shown in FIG.

The lens assembly 50 in which the design lenses 37 and 38 formed with the display portions 39 and 40 of the same design pattern as in the above-described embodiment are superimposed and incorporated is an LED 33.
It is composed of a composite condenser lens 51, a display lens 52, a composite second magnifying lens 53, and a composite first magnifying lens 54 in this order from the side.

The display lens 52 has a flat plate shape.
The surface of the composite condenser lens 51 on the display lens 52 side, the display lens 5 of the composite second magnifying lens 53
Lens portions 51a, 53a, and 54a corresponding to the three LEDs 33 are formed on the two surfaces and the surface of the composite first magnifying lens 54 on the screen plate 36 side, respectively.

Each of these lens portions 51a, 53a, 54a
Has an aspheric surface with a convex surface, and its central axis coincides with the central axis of the light of the LED 33 corresponding to each of the lens portions 51a, 53a, 54a to form an optical axis D.

That is, the light emitted from the LED 33 is
The light travels straight along the optical axis (center axis of the lens) D, and is projected around predetermined positions P, Q, and R on the screen plate 36.

A condenser lens light shielding frame 55 is interposed between the display lens 52 and the composite second magnifying lens 53.

The condenser lens light-blocking frame 55 has openings 55a corresponding to the three lens portions 51a of the composite condenser lens 51, and prevents light guided from the composite condenser lens 51 from leaking to an adjacent optical path.

The design lenses 37 and 38 are sandwiched between the condenser lens frame 55 and the display lens 52.

A second magnifying lens frame 56 is interposed between the compound second magnifying lens 53 and the compound first magnifying lens 54.

The second magnifying lens frame 56 includes lenses 53 and 54
An aperture 56a corresponding to each of the lens portions 53a and 54a is formed to prevent light from the composite second magnifying lens 53 from leaking to an adjacent optical path.

A first magnifying lens frame 57 is provided on the side of the composite first magnifying lens 54 opposite to the second magnifying lens frame 56.

The first magnifying lens frame 57 has an opening 57a corresponding to the lens portion 54a of the composite first magnifying lens 54, and the light from the composite first magnifying lens 54 passes through the predetermined position P on the screen plate 36. , Q and R are guided so as to be illuminated.

According to the structure of this embodiment, a plurality of LEDs
When one of the LEDs 33 emits, for example, red light, the composite condenser lens 51 corresponding to the lit LED 33 travels straight through the design lenses 37 and 38, and passes through predetermined positions P, Q, It comes to head around any of R.

Design lens 38 not corresponding to the wavelength of red light
Then, the display unit 40 and the surrounding masking processing unit 4
2 transmits the red light, and the design lens 37 corresponding to the wavelength of the red light transmits the red light through the display portion 39 and reflects the red light at the surrounding masking processing portion 41. Only one of the design patterns of the design lens 37 corresponding to the wavelength is magnified by the compound second magnifying lens 53 and the compound first magnifying lens 54, respectively, and any one of the predetermined positions P, Q, and R of the screen plate 36 in front of it. It is projected on the center.

When the LED 33 emits green light,
Similarly, only one of the design patterns of the design lens 38 corresponding to the wavelength of the green light is projected around any one of the predetermined positions P, Q, and R of the screen plate 36.

Therefore, also in this embodiment, each LED 33
Thus, a plurality of different design patterns can be selectively displayed on the screen plate 36 by selectively emitting red light and green light.

Here, each lens portion 51a, 53a, 54 of the composite condenser lens 51, the composite second magnifying lens 53, and the composite first magnifying lens 54 corresponding to the one LED.
The central axis of a is on the same straight line as the central axis of the light from the LED 33 corresponding to each of the lens portions 51a, 53a, 54a and forms the optical axis D. And the resolution of the design pattern can be dramatically improved.

Since the optical axes D corresponding to the respective LEDs 33 are parallel to each other as described above, all of the lens portions 51a, 53a, and 54a have the same optical design, and the surfaces are aspherical. , It is possible to further reduce the overall length L of the display device.

[0080]

As described above, according to the present invention, the following functions and effects can be obtained.

According to the first aspect, the plurality of design lenses which are mounted on the housing so as to be superimposed on each other have different display patterns so that the display portions are light-transmitting, and portions other than each display portion have a specific wavelength range. Is reflected, but light in other wavelength ranges is reflected.The masking process with different light reflection characteristics is applied, and the light of specific wavelengths different from each other in the housing according to the light reflection characteristics of each design lens. Since the light source that emits light is provided, only the design pattern of the design lens corresponding to the wavelength of light of the specific light source can be clearly transmitted and displayed.

Then, the plurality of design lenses and the plurality of light sources are integrated into one housing as described above, and the respective design patterns of the plurality of design lenses are individually turned on by the plurality of light sources. As a result, the display device can be independently displayed in the same place, so that the entire display device can be reduced in size, the degree of freedom in the layout of the display device can be increased, and the cost can be greatly reduced.

According to the second aspect, the display portions of the superimposed design lenses are made colorless and transparent, and the plurality of light sources in the housing have different emission colors, so that a plurality of light sources are provided at one display position. Each of the different design patterns can be transmitted and illuminated in a color tone corresponding to the lighting light source without overlapping, so that the displayed contents can be more clearly identified and the visibility can be further improved.

According to claim 3, one of the plurality of light sources is provided.
By selectively emitting multiple emission colors with one light source,
A plurality of different design patterns can be selectively projected on the screen plate, and even if each light source is turned on, the display position of the design pattern on the screen plate is one place, so that the display is easy to confirm and the commerciality is improved. Can be improved.

Further, since the lens for guiding the light from the light source to one location on the screen plate is aspherical, it is located off the optical axis, which cannot be compensated for by a spherical lens, that is, up to the outer peripheral end of the display section of each design lens. The resolution (image) can be improved, and the design pattern can be clearly displayed.

Further, in the case of a spherical lens, the focal length is shortened by reducing the radius of curvature, and on the other hand, the aberration is increased and the resolution is deteriorated. However, by using an aspherical surface, the resolution is prevented from being deteriorated. Since no problem occurs even if the focal length is shortened, the total length of the display device can be shortened.

According to claim 4, one of the plurality of light sources is provided.
By selectively emitting multiple emission colors with one light source,
Of course, a plurality of different design patterns can be selectively projected on the screen plate, and the design pattern at this time is independently projected at the same place as the other design patterns overlapping each other, so that the entire display device is downsized. The center axis of the lens provided corresponding to each light source is aligned with the center axis of the light emitted by the light source corresponding to the lens, so that the light emitted from the light source has directivity. Even in some cases, the irradiated light travels straight toward the screen plate in a well-balanced manner, and the resolution of the design pattern can be dramatically improved.

Further, by making the central axes of the lenses provided corresponding to the plurality of light sources coincide with the central axes of the light emitted by the light sources corresponding to the lenses, the same lens is provided for each of the plurality of lenses. The optical design is sufficient, the optical design becomes easy, and the overall length of the display device can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a light transmission / light reflection characteristic diagram of the design lens of the example.

FIG. 3 is a sectional view showing a second embodiment of the present invention.

FIG. 4 is a front view of a design lens used in the example.

FIG. 5 is a sectional view showing a third embodiment of the present invention.

FIG. 6 is a cross-sectional perspective view showing a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2,3,4 Design lens 6,7,8 Display part 9,10,11 Masking processing part 12,13,14 Light source

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G09F 13/04-13/12

Claims (4)

(57) [Claims] 1. A light-reflecting device in which a display portion of an appropriate design pattern is made to be light-transmitting and subjected to a masking process of reflecting light of a specific wavelength range but transmitting light of other wavelength ranges to portions other than the display portion. A plurality of design lenses having different characteristics and design patterns of the display unit are superimposed and mounted on a housing, and light having a specific wavelength different from each other is emitted in the housing in accordance with the light reflection characteristics of each design lens. A plurality of light sources for irradiating light from the back of the combined design lens are provided, and each design pattern of the plurality of design lenses is independently displayed at the same location by individually lighting the plurality of light sources. A multiplex display device, comprising: 2. The multiple display according to claim 1, wherein the display portion of each design lens is colorless and transparent, and a plurality of light sources arranged in the housing have different emission colors. apparatus. 3. A display portion of an appropriate design pattern is arranged to correspond to each of the irradiation directions of a plurality of light sources emitting a plurality of luminescent colors by making the display portion light-transmissive, and a specific wavelength of the light source is provided in a portion other than the display portion. The masking process that reflects light of the emission color in the range but transmits light of the emission color in the other wavelength range. And a screen plate on which a design pattern corresponding to a wavelength of a luminescent color of the illuminated light source of the design lens is projected when one of the plurality of light sources is illuminated, and corresponding to the plurality of light sources, respectively. And a lens having a surface formed as an aspheric surface for guiding light from a light source to the same portion of the screen plate. 4. A display section of an appropriate design pattern is arranged to correspond to each of the irradiation directions of a plurality of light sources that emit light of a plurality of luminescent colors with light transmittance, and a specific wavelength of the light source is provided in a portion other than the display section. The masking process that reflects light of the emission color in the range but transmits light of the emission color in the other wavelength range. A lens having a central axis on the same axis as the central axis of the light emitted by these light sources, provided when each of the plurality of light sources is illuminated, and when one of the plurality of light sources is turned on. A screen plate in which a design pattern corresponding to the wavelength of the luminescent color of the illuminated light source of the design lens is independently projected at the same place as another design pattern overlapping each other through the lens. A multiplex display device, comprising: