CN106448501A - Method for manufacturing a dimming apparatus - Google Patents

Method for manufacturing a dimming apparatus Download PDF

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Publication number
CN106448501A
CN106448501A CN201610352953.3A CN201610352953A CN106448501A CN 106448501 A CN106448501 A CN 106448501A CN 201610352953 A CN201610352953 A CN 201610352953A CN 106448501 A CN106448501 A CN 106448501A
Authority
CN
China
Prior art keywords
light
layer
colour filter
display pattern
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610352953.3A
Other languages
Chinese (zh)
Other versions
CN106448501B (en
Inventor
石田英之
伊藤睦夫
伊藤直树
伊藤彻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of CN106448501A publication Critical patent/CN106448501A/en
Application granted granted Critical
Publication of CN106448501B publication Critical patent/CN106448501B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/18Edge-illuminated signs
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/20Filters
    • G02B5/22Absorbing filters
    • G02B5/223Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016Grooves, prisms, gratings, scattering particles or rough surfaces
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/0035Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0041Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided in the bulk of the light guide
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0065Manufacturing aspects; Material aspects
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/18Edge-illuminated signs
    • G09F2013/1804Achieving homogeneous illumination
    • G09F2013/1831Achieving homogeneous illumination using more than one light source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/18Edge-illuminated signs
    • G09F2013/184Information to display
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/18Edge-illuminated signs
    • G09F2013/184Information to display
    • G09F2013/1863Layer with different refractive index

Abstract

The invention aims to form a thin illuminating display part through a printing process, the display part switching between a plurality of displays. A low refractive index layer (12), a light scattering layer (14), a light shielding layer (15), and a color filter layer (17) are formed on the surface (11a) on a light incident side of a light guiding layer (11) by a printing process. When a first light sending part (2) is lighted, in a first display pattern (13), light is scattered in the light scattering layer (14) and becomes scattering light (L2), and the first display pattern is displayed through white illumination. Light of a second light sending part (17) passes through the color filter layer (17) and a second display pattern (16), and the second display pattern (16) is illuminated and displayed with color.

Description

The manufacture method of lighting display device
Technical field
The present invention relates to the illumination being illuminated including multiple display patterns of at least one colored display can be selected Display device, especially relates to the manufacture method of lighting display device that can be manufactured using printing process.
Background technology
Patent document 1 and patent document 2 are recorded and can select multiple display patterns and the illumination that is illuminated shows Showing device.
In lighting display device described in patent document 1, coating ink in the first light guide therefor and opening except first Region beyond oral area forms the first low-index layer, passes through in the surface and the first opening portion of described first low-index layer Printing process and form scattering layer.Then, mask layer is formed in addition to the second opening portion on the surface of scattering layer.Then, make Second light guide therefor is opposed with mask layer.
In lighting display device described in patent document 1, when by the light source point opposed with the side of the first light guide therefor When bright, the light of this light source reflected in the internal transmission of the first light guide therefor and by the boundary face with the first low-index layer, by institute State light to be scattered by the scattering layer in the first opening portion of the first low-index layer, therefore towards the front of the first light guide therefor, Illuminate out word corresponding with the shape of the first opening portion, the display of symbol.
In addition, when the light source igniting opposed with the side of the second light guide therefor, the light of this light source passes in the second light guide therefor Defeated, reflected by backscatter layer and give to pass through light to the second opening portion.Light is passed through by this, from the front of the first light guide therefor with Illuminate out word corresponding with the shape of the second opening portion, the state of the display of symbol is visually observed.
In lighting display device described in patent document 2, it is folded between the first optical waveguide layer and the second optical waveguide layer Light scattering layer, the first optical waveguide layer and light scattering layer engage via the first display optical waveguide layer, the second optical waveguide layer and light scattering layer warp Engaged by the second display optical waveguide layer.
In this lighting display device, the light from the first light source is advanced in the inside of the first optical waveguide layer, and this light injects the One shows that optical waveguide layer is scattered by light scattering layer, and illuminates out the shape with the first display optical waveguide layer towards the front of the first optical waveguide layer The corresponding word of shape, the display of symbol.When secondary light source is lighted, the light of this secondary light source passes in the inside of the second optical waveguide layer Defeated, transmit to the front of the first optical waveguide layer via the second inside showing optical waveguide layer and through light scattering layer.Thus, it is possible to from The front of one optical waveguide layer is visually observed and is shown the corresponding word of shape of optical waveguide layer, the illumination of symbol with second.
Citation
Patent document
Patent document 1:Practical new No. 3180967 publication of case mandate of Japan
Patent document 2:No. 4979835 publications of Japanese Patent No.
In lighting display device described in patent document 1, scattering layer is by the white ink of the powder containing calcium carbonate Constitute.Therefore, in the first light guide therefor advance and be scattered in the first opening portion layer scattering and illuminate be shown as white, The display transmitted in second light guide therefor and formed through the transmission light in the second opening portion is also white.
However, sending from light source and injecting from the side end face of the first light guide therefor, transmit in the first light guide therefor and be scattered The light of layer scattering becomes slightly partially blue light, therefore passes through this scattered light and easily produces luminance difference with the light through scattering layer.Cause The luminance difference of the display light corresponding with the shape of the first opening portion and the display light corresponding with the shape of the second opening portion is led Illumination display quality is caused to reduce.
In Fig. 7 of lighting display device described in patent document 2, also state that the construction using colour filter, but specially Each layer of the lighting display device described in sharp document 2 is formed by resin film etc., is manufactured by bonding process.Therefore, manufacture work Sequence is loaded down with trivial details, and due to becoming the duplexer of film, therefore slimming there is also the limit.
Content of the invention
The present invention solves above-mentioned existing problem, its object is to provide a kind of manufacture method of lighting display device, its With colour, at least one display pattern can be illuminated, and by by almost all of layer be formed as printing layer so as to Enough realization slimmings.
First invention is related to a kind of manufacture method of lighting display device, and described lighting display device can select multiple aobvious Show and be illuminated it is characterised in that described lighting display device manufacture method by operation as described below come forming layer Stack:(1) on the surface of the light incident side of optical waveguide layer, folding is formed in the region in addition to the first display pattern by printing process The operation of rate of the penetrating low-index layer lower than described optical waveguide layer;(2) pass through printing process the surface of described low-index layer with And the inside of described first display pattern forms the operation of light scattering layer simultaneously;(3) on the surface of described light scattering layer, except Region beyond two display patterns forms the operation of light shield layer;And (4) pass through printing process the surface of described light shield layer with And the inside of described second display pattern forms the operation of colour filter simultaneously, join in the manufacture method of described lighting display device Put and give the first of light to the described optical waveguide layer of described duplexer and send light portion and give second of light through described colour filter and send Light portion.
In the manufacture method of the lighting display device of the invention described above, for example, in the operation of described (3), by white Chromatic ink is forming described light scattering layer.
Second invention is related to a kind of manufacture method of lighting display device, and described lighting display device can select multiple aobvious Show and be illuminated it is characterised in that described lighting display device manufacture method by operation as described below come forming layer Stack:(1) on the surface of the light incident side of optical waveguide layer, folding is formed in the region in addition to the first display pattern by printing process The operation of rate of the penetrating low-index layer lower than described optical waveguide layer;(2) pass through printing process the surface of described low-index layer with And the inside of described first display pattern forms the operation of light scattering layer simultaneously;(3) in the light incident side of described light scattering layer, lead to Cross the operation that printing process forms the first colour filter in the region in addition to the first coloring display pattern;(4) described first The operation being internally formed the first optical attenuation layer of color display pattern;(5) on the surface of described first colour filter, by printing process Form the operation of the second colour filter in the region in addition to the second coloring display pattern;And (6) are in the described second coloring display The operation being internally formed the second optical attenuation layer of pattern, configures structure as described below in the manufacture method of described lighting display device Part:First send light portion, and it gives light to the described optical waveguide layer of described duplexer;First coloured send light portion, its to described first filter Chromatograph and the second colour filter and described first optical attenuation layer and described second optical attenuation layer give and described first colour filter The light of homology color;And second coloured send light portion, it is to described first colour filter and the second colour filter and described first light decay Subtract layer and described second optical attenuation layer gives the light with described second colour filter homology color.
In the manufacture method of the lighting display device of the invention described above, have:Described first colour filter and described second The overlapping region of optical attenuation layer;And the region that described second colour filter is overlapping with described first optical attenuation layer.
In the manufacture method of the lighting display device of said structure, preferably, through described first colour filter and described The transmitance of light after second optical attenuation layer and the transmission through the light after described second colour filter and described first optical attenuation layer Rate is equal.
Invention effect
In the first invention, the inside of the surface of light shield layer and the second display pattern arrange colour filter, therefore from First send light portion to give to show during light and when second send light portion to give to show light, can change the color of illumination display.Cause This, even if from first send light portion light different from the optical path length of the light sending light portion from second and lead to brightness produce poor Different, compared with the conventional example being shown with identical color, sense of discomfort will not be produced.In addition, printing process shape can be passed through Become almost all of layer, therefore, it is possible to reduce bonding process, manufacturing process becomes easy, and also easily realize slimming.
In the second invention, setting the first colour filter and the second colour filter, setting first coloring display pattern and second Color display pattern, the illumination therefore, it is possible to realize at least three kinds shows.In addition, by arranging optical attenuation layer, can reducing and be based on First coloring display pattern illumination display with based on second coloring display pattern illumination display brightness difference such that it is able to Improve display quality.In addition, almost all of layer can be formed by printing process, therefore, it is possible to reduce bonding process, manufacture Operation becomes easy, and also easily realizes slimming.
Brief description
Fig. 1 is the sectional view of the lighting display device of the first embodiment illustrating the present invention.
In Fig. 2, (A), (B), (C) are the specifications of the manufacture method of the lighting display device illustrating first embodiment Figure.
In Fig. 3, (A) illustrates the first display pattern of the lighting display device of first embodiment, and (B) illustrates the second display Pattern.
Fig. 4 is the sectional view of the lighting display device illustrating second embodiment of the present invention.
In Fig. 5, (A), (B), (C) are the specifications of the manufacture method of the lighting display device illustrating second embodiment Figure.
In Fig. 6, (A) is the action specification figure that the first colored light when making blue light pass through shows, (B) is so that ruddiness is passed through When the action specification figure that shows of the second colored light.
In Fig. 7, (A) illustrates the first display pattern of the lighting display device of second embodiment, and (B) illustrates that first is coloured Display pattern, (C) illustrates the second coloured display pattern.
Description of reference numerals
1st, 101 lighting display device
2 first send light portion
3 second send light portion
4 first coloured send light portion
5 second coloured send light portion
10 duplexers
11 optical waveguide layers
The surface of 11a light incident side
12 low-index layers
13 first display patterns
14 light scattering layers
15 light shield layers
16 second display patterns
17 colour filters
20 duplexers
21 light shield layers
22 first colour filters
23 first coloured display patterns
24 first optical attenuation layers
25 second colour filters
26 second coloured display patterns
27 second optical attenuation layers
Specific embodiment
Fig. 1 illustrates the lighting display device 1 of the first embodiment of the present invention.
Lighting display device 1 has duplexer 10, is opposed to be provided with first in the sidepiece of duplexer 10 and send light portion 2, It is opposed on the downside of the diagram of duplexer 10 to be provided with second and send light portion 3.
In Fig. 2 (A) (B) (C), as the manufacture method of lighting display device 1, the manufacture of duplexer 10 is shown successively Operation.
Duplexer 10 has optical waveguide layer 11.Optical waveguide layer 11 is by having translucency and flexual synthetic resin sheet or synthesis Resin plate is formed, for example, urethane film, POLYCARBONATE SHEET or PET (polyethylene terephthalate) piece.Optical waveguide layer 11 Plane towards diagram downside is the surface 11a of light incident side, and the plane towards diagram upside is to send the surface 11b of light side.
In operation shown in Fig. 2 (A), low-index layer 12 is formed on the surface 11a of the light incident side of optical waveguide layer 11. Low-index layer 12 is lower than optical waveguide layer 11 and ink that have translucency is formed by refractive index.Have the ink of translucency for example with Polyester based resin is main body, makes refractive index have more than 0.2 difference preferably by optical waveguide layer 11 and low-index layer 12.
Low-index layer 12 is formed by screen painting operation using the ink with translucency.By in screen painting work Ink cured is made, thus forming low-index layer 12 in the region in addition to the first display pattern 13 in sequence.Show by first The removal shape of pattern 13, thus showing word, symbol or figure, in this embodiment, such as shown in Fig. 3 (A), passes through First display pattern 13 shows " 8 " of numeral.That is, low-index layer 12 is formed at the region in addition to " 8 " this word.
In operation shown in Fig. 2 (A), light scattering layer 14 is formed with the surface 12a of low-index layer 12.Light scattering Layer 14 is formed by the ink of white color system.The ink of white color system is for example, mixed into calcium carbonate, magnesia in the resin of acrylic compounds Deng the ink of white filler, or the ink of the pigment containing white.In screen painting operation, the ink of white color system It is coated on the surface 12a of low-index layer 12, and, also fill up in the inside of the first display pattern 13, by making ink cured Thus forming light scattering layer 14.
In operation shown in Fig. 2 (B), light shield layer 15 is formed on the surface 14a of the light incident side of light scattering layer 14.Hide Photosphere 15 is for example, mixed into the ink of the metal system of metal packing in the resin of acrylic compounds, or is in acrylic compounds Resin in be mixed into carbon dust black ink.Apply this ink in screen painting operation, this ink is formed at except Region beyond two display patterns 16.By making this ink cured thus forming light shield layer 15.
Second display pattern 16 performance word, symbol or figure, such as shown in Fig. 3 (B), by the second display pattern 16 table " A " of existing Roman capitals.That is, light shield layer 15 is formed at the region in addition to " A ".
In the duplexer 10 shown in Fig. 1 and Fig. 2, the center of word of the first display pattern 13 and the second display pattern 16 Word center stagger but it is also possible to make each word center consistent.
In operation shown in Fig. 2 (C), colour filter 17 is formed on the surface 15a of the light incident side of light shield layer 15.Colour filter Layer 17 is for example formed by the colored ink of the pigment of the form and aspect being mixed into regulation in acrylic resin.For example, pigment is in Blue or red.By screen painting, colored ink is coated on the surface 15a of light shield layer 15, meanwhile, will have color ink Water is filled in the inside of the second display pattern 16.Solidified thus forming colour filter 17 by making this colored ink.
In addition, in the operation before and after each described operation, send shape on the surface 11b of light side in optical waveguide layer 11 Become to send light side low-index layer 18, form optical attenuation layer 19 in its surface.Light side low-index layer 18 is sent to use and low refraction Rate layer 12 identical material is simultaneously formed by printing process.Optical attenuation layer 19 is smoke stratification, for example, in acrylic resin It is mixed into the layer of white, translucent filler, formed by printing process.
Shown in Fig. 1 first send light portion 2 opposed with the side end face 11c of the optical waveguide layer 11 of duplexer 10, and has luminous two Pole pipe.Light emitting diode sends white light.
Second send light portion 3 opposed with the surface 17a of the light incident side of colour filter 17.Second send light portion 3 by sending white light Light emitting diode is constituted.Or, from the light emitting diode sending white light and the light guiding this light emitting diode to colour filter The optical waveguide layer of 17 transmission is constituted.
The surface 11b direction sending light of the optical waveguide layer 11 of duplexer 10 carries the equipment body of lighting display device 1 Outside, the inner side of the surface 11a ancillary equipment main body of light incident side.And, the position outside equipment is being leaned on respect to duplexer 10 Put the touch sensor being configured with such as electrostatic capacitive, or lean on the position configuration inside equipment with respect to duplexer 10 There is described touch sensor.Or it is also possible to it is configured with by pressing duplexer 10 in the inside of equipment body to enter action Switching mechanism made etc..
This lighting display device 1 is by lighting the first light emitting diode sending light portion 2, and extinguishes second and send light portion 3, thus As shown in Fig. 3 (A), the first display pattern 13 can be illuminated.The literary composition of " 8 " of white is shown in this illumination shows Word.
As shown in figure 1, sending the light that light portion 2 sends to inject the inside of optical waveguide layer 11 from side end face 11c from first.Inject leaded light The major part of the light composition L1 of inside of layer 11 by the boundary face of the surface 11a of light incident side and low-index layer 12 and send light The surface 11b of side is reflected with the boundary face sending light side low-index layer 18, and the internal communication in optical waveguide layer 11.In optical waveguide layer 11 With the boundary portion of light scattering layer 14, it is scattered in a part of the light composition L1 of the internal communication of optical waveguide layer 11 and becomes scattered light L2, is forwards transmitted by the surface 11b sending light side of optical waveguide layer 11.
Scattered light L2 only forwards reflects in the part of the first display pattern 13, and therefore illumination shows shown in Fig. 2 (A) The pattern of digital " 8 ".Display color now depends on the color of light scattering layer 14, in embodiments for white.
Send light portion 2 to light first, when second send light portion 3 to extinguish, there is not the transmission making the second display pattern 16 show Light composition, is therefore hardly visible the display of the word of " A " by the second display pattern 16 performance from front.
Next, when extinguish first send light portion 2 and light second send light portion 3 when, to the second display figure shown in Fig. 3 (B) Case 16 is illuminated.This illumination is shown as " A " of Roman capitals, and it shows that color depends on the form and aspect of colour filter 17, for example, red, Blue.
As shown in figure 1, sending the white light that light portion 3 sends to be given to colour filter 17 from second, only transmitting and being not provided with shading The region of the second display pattern 16 of layer 15, this passes through light La and passes through light diffusion layer 14 and low-index layer 12, then passes through and leads Photosphere 11 is forwards sent.This has the form and aspect of colour filter 17 through light La and becomes scattered light by light scattering layer 14, and to Front is projected.Thus, illuminate while there are the form and aspect such as blueness, from front, " A " showing Roman capitals.
Transmission light La through the pattern of " A " of light scattering layer 14 is scattered light, passes through at identical conditions and is formed with The region of low-index layer 12 and the region of the first display pattern 13, are therefore hardly visible first shown in Fig. 2 (A) from front Display is " 8 " of numeral.
In this lighting display device 1, when first display pattern 13 being illuminated using the light sending light portion 2 from first Optical path length different from optical path length when second display pattern 16 being illuminated using the light sending light portion 3 from second, But the first display pattern 13 passes through white displays, the second display pattern 16 is shown by having the colored of the form and aspect such as red, blue, therefore Even if there is the luminance difference producing because of the difference of described optical path length, also will not substantially feel when switching two illumination displays Apparent sense of discomfort.
It should be noted that light portion 2 can also be sent to send the colourama with the form and aspect different from colour filter 17 from first, By from show different form and aspect to show based on the illumination of the first display pattern 13 based on the illumination of the second display pattern to show.
Become the duplexer 10 of Fig. 1 and the major part of lighting display device 1 shown in Fig. 2, by such as screen painting etc. Low-index layer 12, light scattering layer 14, light shield layer 15 and colour filter 17 are entirely formed in and lead by the operation coating ink like that On the surface 11a of the light incident side of photosphere 11, therefore manufacturing process is easy, thus easily realizing slimming.
In operation shown in Fig. 2 (A), in the table that by printing process, light scattering layer 14 is formed at low-index layer 12 During the 12a of face, light scattering layer 14 is imbedded the first display pattern 13 such that it is able to form the illumination display figure shown in Fig. 2 (A) simultaneously Case.In operation shown in Fig. 2 (C), when colour filter 17 being formed at by printing process the surface 15a of light shield layer 15, with When colour filter 17 imbedded the second display pattern 16 such that it is able to form the illumination display pattern shown in Fig. 2 (B).
The layer that first display pattern 13 can be formed as one with light scattering layer 14, and can be by the second display pattern 16 layers forming as one with colour filter 17, therefore, it is possible to make the number of plies minimum.Further, since the number of plies passed through for light can be made Few, therefore the utilization ratio of light preferably, easily forms distinct illumination and shows.
Especially by there will be no the region of light shield layer 15 as the second display pattern 16, and by printing by colour filter 17 part imbeds this second display pattern 16, thus not shape between the layer in the second display pattern 16 and colour filter 17 The boundary portion of stratification, just can brightly illuminate the display pattern showing that redness, blueness etc. are colored.
Fig. 4 illustrates the lighting display device 101 of second embodiment of the present invention.In this lighting display device 101, first Send light portion 2 opposed with the sidepiece of duplexer 20, first coloured send light portion 4 and the second coloured incidence sending light portion 5 and duplexer 20 Side (on the downside of diagram) is opposed.First send light portion 2 light emitting diode by sending white light etc. to constitute.First coloured send light portion 4 and The two coloured colored lights sending light portion 5 to produce different form and aspect, first coloured send light portion 4 to produce ruddiness, second coloured send light portion 5 to produce Blue light.First coloured send that light portion 4 is coloured with second to send light portion 5 to be made up of the light emitting diode of light producing respective form and aspect.Or Person is made up of the colour filter of the light emitting diode producing white light and respective form and aspect.
Fig. 5 illustrates the manufacturing process of duplexer 20.Operation shown in Fig. 5 (A) and the first embodiment shown in Fig. 2 (A) Duplexer 10 manufacturing process identical, on optical waveguide layer 11, low-index layer 12 in addition to the first display pattern 13 pass through print Dataller's sequence is formed, and in the surface 12a and the first display pattern 13 of low-index layer 12, light scattering layer 14 passes through printing process Formed.As shown in Fig. 7 (A), the first display pattern 13 is formed as the shape of " 8 " of numeral.
In the operation of Fig. 5 (B), light shield layer 21 is formed on the surface 14a of the light incident side of light scattering layer 14.Light shield layer 21 are formed by way of as described below:Screen painting operation coats in acrylic resin, is for example mixed into metal packing The ink of metallochrome or be mixed into the black ink of carbon dust in acrylic resin and make ink cured.Hide Photosphere 21 is formed at the region in addition to coloured viewing area 21a.
In the operation of Fig. 5 (B), both the surface of light shield layer 21 and coloured viewing area 21a are overlappingly formed First colour filter 22.First colour filter 22 is formed by way of as described below:Using being for example mixed in acrylic resin The colored ink of pigment and be coated using screen painting and make ink cured.First colour filter 22 is in have with from first Color send the color of the light homology of colour that light portion 4 sends, in embodiments for red colour system.By printing process, the first colour filter Layer 22 is formed at the region in addition to the first coloured display pattern 23.In example shown in Fig. 7 (B), the first coloured display figure Case 23 shows " A " of Roman capitals.
First coloured display pattern 23 is formed in the range of coloured viewing area 21a.In the first coloured display pattern 23 Inside be filled with the first optical attenuation layer 24.First optical attenuation layer 24 makes the transmitance of the light passing through be reduced to 80% about, leads to Cross using the cigarette ink containing white filler etc. for example in acrylic resin and applied in screen painting operation Cover and make ink cured to be formed.
In the operation of Fig. 5 (C), the surface of the first colour filter 22 and the light incident side of the first optical attenuation layer 24 is laminated Be formed with the second colour filter 25.Second colour filter 25 passes through to coat for example in acrylic resin in screen painting operation Colored ink containing pigment simultaneously makes ink cured and is formed.Second colour filter 25 is formed at except the second coloured display pattern Region beyond 26.Second colour filter 25 is in from the second form and aspect sending the colored homology that light portion 5 sends, in embodiments for indigo plant Colour system.
Second coloured display pattern 26 is formed as, and in the range of coloured viewing area 21a, a part is coloured with first aobvious Diagram case 23 is overlapping.Second coloured display pattern 26 is formed as, and can show the pattern of the symbol shown in Fig. 7 (C).And, it is logical Cross screen painting and fill cigarette ink in the inside of the second coloured display pattern 26, form the second optical attenuation by making ink cured Layer 27.The transmitance of the light of the second optical attenuation layer 27 is 80% about.
In addition, in arbitrary operation, the surface 11b sending light side of optical waveguide layer 11 being formed with and send light side low-index layer 18 with optical attenuation layer 19, thus completing duplexer 20.
In duplexer 20 shown in Fig. 4, have in the range of coloured viewing area 21a:First colour filter 22 and The region of two colour filter 25 overlap, the first colour filter 22 region overlapping with the second light attenuating zones 27 and the first optical attenuation Layer 24 region overlapping with the second colour filter 25.
As shown in figure 4, in lighting display device 101, making first to send, light portion 2, first is coloured send light portion 4 and second to have Color send light portion 5 opposed with duplexer 20.
Next, illustrating to the display action of the lighting display device 101 of second embodiment.Have when extinguishing first Color send light portion 4 and second coloured when sending light portion 5 and lighting first and send light portion 2, with the first embodiment shown in Fig. 1 in light One send identical during light portion 2, by scattered light L2 of the part of the first display pattern 13, shown in such as Fig. 7 (A), according to the first display The shape of pattern 13 shows " 8 " of numeral with white illumination.
Fig. 6 (A) illustrates to extinguish first and send light portion 2 and coloured to send light portion 5 to irradiate mutually homochromy with the second colour filter 25 from second The state of the blue light of system.In Fig. 6 (A), in the viewing area being formed with the first coloured display pattern 23, through the second filter Chromatograph 25 is represented with Lb1 with the transmission light of the first optical attenuation layer 24, subtracts the saturating of layer 27 and the first optical attenuation layer 24 through the second light Cross light Lb2 to represent.By described transmission light Lb1 with through light Lb2, the coloured display pattern 23 of first shown in Fig. 7 (B) is with indigo plant Color illumination display.
It should be noted that becoming blue and red through the transmission light Lx outside the region of the first coloured display pattern 23 Secondary colour.
Fig. 6 (B) illustrates to extinguish first and send light portion 2 and coloured to send light portion 4 to irradiate mutually homochromy with the first colour filter 22 from first The state of the red light of system.In Fig. 6 (B), in the viewing area being formed with the second coloured display pattern 26, through the second light Damping layer 17 is represented with Lr1 with the transmission light of the first colour filter 22, subtracts the saturating of layer 27 and the first optical attenuation layer 24 through the second light Cross light Lr2 to represent.By described transmission light Lr1 with through light Lr2, the coloured display pattern 26 of second shown in Fig. 7 (C) is with red Color illumination display.
Now, also become blue with red mixing through the transmission light Ly outside the region of the second coloured display pattern 26 Color.
In the illumination display action of the shown in Fig. 6 (A) first coloured display pattern 23, through the second colour filter 25 with The transmission light Lb1 of the first optical attenuation layer 24 and through two optical attenuation layers 27,24 transmission light Lb2 in, the transmitance of light is substantially Unanimously.In the illumination display action of the shown in Fig. 6 (B) second coloured display pattern 26, through the second optical attenuation layer 27 with The transmission light Lr1 of the first colour filter 22 and through two optical attenuation layers 27,24 transmission light Lr2 in, the transmitance substantially of light Cause.Additionally, in transmission light Lb1, Lb2 of blue light and transmission light Lr1, Lr2 of ruddiness, transmitance is substantially uniform.
In the embodiment shown in fig. 6, the first colour filter 22 and the respective light transmittance of the second colour filter 25 are 80%, light The light transmittance of damping layer 24,27 is 80%.In order that through light Lb1 consistent with the light transmittance through light Lb2, make through light Lr1 Consistent with the light transmittance through light Lr2, preferably make the light transmittance of the first colour filter 22 and the second colour filter 25 and optical attenuation layer 24, 27 light transmittance is consistent.
Transmission as shown in Fig. 6 (A), to transmission light Lb1, Lb2 of the blue light that the first coloured display pattern 23 is illuminated Rate is 64%, such as shown in Fig. 6 (B), the transmission to transmission light Lr1, Lr2 of the ruddiness that the second coloured display pattern 26 is illuminated Rate also all 64%.When coloured for first shown in Fig. 7 (B) display pattern 23 being shown with blue illumination therefore, it is possible to reduce With luminance difference when showing coloured for second shown in Fig. 7 (C) display pattern 26 with red illumination such that it is able to improve display product Matter.
The light incident side of optical waveguide layer 11 in the manufacture method of duplexer 20 shown in Fig. 5, can be formed by printing process Each layer, therefore manufacturing process easily, is capable of being thinned.In addition, by filling the first optical attenuation to the first colour filter 22 Layer 24, can be illuminated to the first coloured display pattern 23 showing, by filling the second optical attenuation layer to the second colour filter 25 27 fillings, can be illuminated to the second coloured display pattern 26 showing, the combination of the layer by being formed by printing process, can Make the transmitance of light uniform.
It should be noted that it is also possible in the second colour filter 25 in the manufacture method of the lighting display device of the present invention Light incident side, also form the 3rd colour filter, the 4th colour filter and the 3rd optical attenuation layer, the 4th optical attenuation layer.

Claims (5)

1. a kind of manufacture method of lighting display device, described lighting display device can select multiple displays to be illuminated, It is characterized in that,
The manufacture method of described lighting display device forms duplexer by operation as described below:
(1) on the surface of the light incident side of optical waveguide layer, folding is formed in the region in addition to the first display pattern by printing process Rate of the penetrating low-index layer lower than described optical waveguide layer;
(2) light is formed in the inside on the surface of described low-index layer and described first display pattern by printing process simultaneously Scattering layer;
(3) on the surface of described light scattering layer, form light shield layer in the region in addition to the second display pattern;And
(4) colour filter is formed in the inside on the surface of described light shield layer and described second display pattern by printing process simultaneously Layer,
In the manufacture method of described lighting display device, configure and give the first of light to the described optical waveguide layer of described duplexer and send Light portion send light portion with the second of the light giving through described colour filter.
2. the manufacture method of lighting display device according to claim 1, wherein,
In the operation of described (3), form described light scattering layer by white ink.
3. a kind of manufacture method of lighting display device, described lighting display device can select multiple displays to be illuminated, It is characterized in that,
The manufacture method of described lighting display device forms duplexer by operation as described below:
(1) on the surface of the light incident side of optical waveguide layer, folding is formed in the region in addition to the first display pattern by printing process Rate of the penetrating low-index layer lower than described optical waveguide layer;
(2) light is formed in the inside on the surface of described low-index layer and described first display pattern by printing process simultaneously Scattering layer;
(3) in the light incident side of described light scattering layer, by printing process in the region shape in addition to the first coloring display pattern Become the first colour filter;
(4) described first coloring display pattern be internally formed the first optical attenuation layer;
(5) on the surface of described first colour filter, formed in the region in addition to the second coloring display pattern by printing process Second colour filter;And
(6) described second coloring display pattern be internally formed the second optical attenuation layer,
In the manufacture method of described lighting display device, configure component as described below:
First send light portion, and it gives light to the described optical waveguide layer of described duplexer;
First coloured send light portion, it is to described first colour filter and the second colour filter and described first optical attenuation layer and described Second optical attenuation layer gives the light with described first colour filter homology color;And
Second coloured send light portion, it is to described first colour filter and the second colour filter and described first optical attenuation layer and described Second optical attenuation layer gives the light with described second colour filter homology color.
4. the manufacture method of lighting display device according to claim 3, wherein,
Have:The described first colour filter region overlapping with described second optical attenuation layer;And described second colour filter with described The overlapping region of first optical attenuation layer.
5. the manufacture method of lighting display device according to claim 4, wherein,
Through the light after described first colour filter and described second optical attenuation layer transmitance with through described second colour filter and The transmitance of the light after described first optical attenuation layer is equal.
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