CN102356421A - Illuminated display device - Google Patents
Illuminated display device Download PDFInfo
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- CN102356421A CN102356421A CN2010800120624A CN201080012062A CN102356421A CN 102356421 A CN102356421 A CN 102356421A CN 2010800120624 A CN2010800120624 A CN 2010800120624A CN 201080012062 A CN201080012062 A CN 201080012062A CN 102356421 A CN102356421 A CN 102356421A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light 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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Push-Button Switches (AREA)
Abstract
The invention provides an illuminated display section in which a first display and a second display are clearly illuminated without interference between the first and second displays. Light emitted from a light emitting diode (15) enters a first light guide layer (11), reaches a first display light guide layer (13) which is formed in a first display pattern, and is reflected by a light scattering layer (12) to become scattered light. The scattered light is visible from the front through the first display light guide layer (13) and the first light guide layer (11), and the illuminated first display is visible. When a second light emitting diode (24) is turned on and the light thereof enters the inside of a second light guide layer (21), light transmitted through a second display light guide layer (22) which is formed in a second display pattern is transmitted through the light scattering layer (12) to become scattered light, the scattered light exits forward through the first display light guide layer (13), a light transmission layer (14), and the first light guide layer (11), and the illuminated second display is visible from the front.
Description
Technical field
The present invention relates to a kind of lighting display device, can selectively throw light on to first displaying contents and second displaying contents at least, when a displaying contents being thrown light on demonstration, can make another displaying contents not obvious.
Background technology
In the input media of the input media of mobile electronic apparatus, key board unit or vehicle mounted input media etc.; The operating body of push button is provided with the Lighting Division that literal, mark or figure etc. are showed, and can the light that the inner set light sources such as light emitting diode of slave unit send given above-mentioned Lighting Division and throws light on.
The miniaturization of nearest various electronic equipments and slimming is developed and function becomes variation, and existence is want to operate more multi-functional requirement through the operating body of lesser amt.For this reason, preferably adopt following structure: can carry out the input of different mode through an operating body, and on an operating body, the Lighting Division that carries out multiple demonstration is set, when switching input pattern, select different Lighting Divisions to throw light at every turn.And, be configured at least a portion through viewing area and repeat different Lighting Divisions, the operating body of limited size is switched than larger area show and throw light on.
The lighting display device that following patent documentation 1 is put down in writing is to be provided with: transparent key head; First printed layers of light transmission is positioned at the rear side of key head, representes first displaying contents; Second printed layers of light transmission is positioned at the rear side of key head, becomes background colour; And the 3rd printed layers of light-proofness, be arranged on the rear side of second printed layers, represent second displaying contents.
When environment for use is bright; Light from the outside is reflected by above-mentioned second printed layers; First displaying contents of can visual background colour and representing by first printed layers; When environment for use is dark, give light from the back of the 3rd printed layers, can visual second displaying contents of representing by the 3rd printed layers.
The lighting display device that following patent documentation 2 is put down in writing is to have first module and overlap the Unit second on its back.First module possesses first light source and first planar luminous body with first display part, and Unit second possesses secondary light source and second planar luminous body with second display part.This invention does, when first light source is lit a lamp, can illuminate the displaying contents of first display part, when secondary light source is lit a lamp, can illuminate the displaying contents of second display part.
Below the lighting display device put down in writing of patent documentation 3 do, have with the LGP of distinguishing the different corresponding reflection spots of demonstration by range upon range of, and be provided with and the corresponding light source of each LGP.When first light source is lit a lamp, corresponding with formed reflection spot on first LGP and carry out first and show, when secondary light source is lit a lamp, switch to carry out with second LGP on formed reflection spot corresponding second show.Become path more, or each LGP changed the arrangement of reflection spot through formed reflection spot on the LGP that makes the display surface side, prevent the deterioration of the display quality that interference of light causes thus.
The look-ahead technique document
Patent documentation
Patent documentation 1: TOHKEMY 2005-235671 communique
Patent documentation 2: TOHKEMY 2008-170745 communique
Patent documentation 3: TOHKEMY 2002-297068 communique
Summary of the invention
The problem that invention will solve
The lighting display device that patent documentation 1 is put down in writing does; Represent that first printed layers of first displaying contents and the 3rd printed layers of expression second displaying contents are different printed layers; So when showing second displaying contents giving light from the back of the 3rd printed layers; Can not avoid demonstrating first displaying contents lightlyer, and be difficult to make displaying contents not obvious and another displaying contents is shown clearly.
The lighting display device that patent documentation 2 is put down in writing does; First display part is arranged on the different planar luminous bodies with second display part; So when second display part that is arranged on second planar luminous body being shown, be difficult to make first displaying contents that is positioned at its place ahead not obvious fully in that secondary light source is lit a lamp.
In addition; The lighting display device that patent documentation 3 is put down in writing does; Though can change the diameter or the arrangement of reflection spot to each LGP; But when second display part that is arranged on second LGP being shown, be difficult to make first displaying contents that is positioned at its place ahead not obvious fully in that secondary light source is lit a lamp.In addition, owing to form demonstration, show unclarity through the aggregate of point.
The present invention is the invention that solves above-mentioned problem in the past; Its purpose is to provide a kind of lighting display device; Can first displaying contents and second displaying contents be switched respectively and show clearly, can make displaying contents not obvious and only show another displaying contents clearly.
Be used to solve the means of problem
The present invention is a kind of lighting display device, can show first demonstration and second selectively to throw light on, it is characterized in that,
Have: light scattering layer makes both sides' scattering of reflected light and transmitted light; Optical waveguide layer is configured in to optical fractionation the surface of above-mentioned light scattering layer; Light source is given light to the inside of above-mentioned optical waveguide layer; Show optical waveguide layer, be configured between above-mentioned light scattering layer and the above-mentioned optical waveguide layer, will make its reflection to above-mentioned light scattering layer guiding at the light of above-mentioned optical waveguide layer internal communication; And the light unloading part, give transmitted light to the back side of above-mentioned light scattering layer,
Above-mentioned demonstration optical waveguide layer forms the pattern that expression above-mentioned first shows, gives the light that expression above-mentioned second shows from above-mentioned smooth unloading part to above-mentioned light scattering layer.
Lighting display device of the present invention does, expression first show only by the scattered light of light scattering layer reflection, the only transmission that expression second shows the scattered light of same light scattering layer.That is, throw light on through scattered light and show that first shows and second demonstration by the scattering of same light scattering layer.Therefore, when illumination second demonstration, show optical waveguide layer only as the light transmissive optical waveguide layer of scattering is worked, when illumination second showed, first demonstration was obvious hardly.
The present invention can constitute, and above-mentioned demonstration optical waveguide layer and above-mentioned optical waveguide layer split ground form, and are fixed on the both sides of above-mentioned optical waveguide layer and above-mentioned light scattering layer.For example, at least a portion of above-mentioned demonstration optical waveguide layer is a bond layer.
Perhaps, above-mentioned demonstration optical waveguide layer of the present invention also can constitute, and the part of above-mentioned optical waveguide layer is outstanding and form above-mentioned demonstration optical waveguide layer towards above-mentioned light scattering layer, and is fixed on the surface of above-mentioned light scattering layer.
And; The present invention does, in the zone that above-mentioned demonstration optical waveguide layer is not set, between above-mentioned optical waveguide layer and above-mentioned light scattering layer; Be provided with above-mentioned optical waveguide layer of refractive index ratio and all low low-index layer of above-mentioned demonstration optical waveguide layer both sides, preferred above-mentioned low-index layer is an air layer.
The present invention is that above-mentioned smooth unloading part has: second optical waveguide layer, from the back side optical fractionation ground configuration of above-mentioned light scattering layer; Secondary light source is given light to the inside of above-mentioned second optical waveguide layer; And second show and to be configured in optical waveguide layer between above-mentioned second optical waveguide layer and the above-mentioned light scattering layer, will make its transmission to the guiding of the back side of above-mentioned light scattering layer at the light of the above-mentioned second optical waveguide layer internal communication; Above-mentioned second shows that optical waveguide layer forms the pattern that expression above-mentioned second shows.
In this case, preferred above-mentioned second shows that optical waveguide layer and the above-mentioned demonstration optical waveguide layer that is arranged on the face side of above-mentioned light scattering layer are same configuration.
Perhaps, the present invention is that above-mentioned smooth unloading part has: the 3rd optical waveguide layer is configured in the rear side of above-mentioned light scattering layer; Light source is given light to the inside of above-mentioned the 3rd optical waveguide layer; And pattern formation portion, will give above-mentioned light scattering layer at the light of above-mentioned the 3rd optical waveguide layer internal communication; Above-mentioned pattern formation portion forms the pattern that expression above-mentioned second shows.
Above-mentioned formation can constitute; Between above-mentioned light scattering layer and above-mentioned the 3rd optical waveguide layer, be provided with the light shield layer of blocking optical transmission; The part that has been short of at above-mentioned light shield layer is formed with above-mentioned pattern formation portion, in above-mentioned pattern formation portion, is provided with above-mentioned light scattering layer partly.
Through light scattering layer only is set in pattern formation portion partly, can make the structure of light unloading part become slim.In addition, can also change the transmittance of the light scattering portion that in pattern formation portion, forms etc., can realize making a plurality of Lighting Divisions to throw light on the less brightness of deviation according to distance from light source.
Perhaps, the present invention is that above-mentioned smooth unloading part is an illuminating part, the light of the pattern that this illuminating part generation expression above-mentioned second shows.
In addition; In the present invention; In the face side of light scattering layer, above-mentioned optical waveguide layer, above-mentioned light source and above-mentioned demonstration optical waveguide layer are provided with many groups with mode that can optical fractionation, and/or in the rear side of light scattering layer; Optics is provided with many group light unloading parts with being separated from each other, can selectively throw light on to the demonstration more than 3 kinds thus.
The effect of invention
Lighting display device of the present invention, can make first show with second demonstration in one not obvious, and another is shown clearly.And, can show that first shows and second demonstration with roughly the same brightness.
Description of drawings
Fig. 1 is the side view of the lighting display device of expression first embodiment of the invention.
First of the lighting display device of (A) expression first embodiment of Fig. 2 shows that (B) expression second shows.
(A) of Fig. 3 is the vertical view of the variation of the position relation between expression first demonstration and second shows, (B) is the cross section enlarged drawing of the B-B line of (A).
Fig. 4 is the side view of the lighting display device of expression second embodiment of the invention.
Fig. 5 is the side view of the lighting display device of expression third embodiment of the invention.
Fig. 6 is the side view of variation of the lighting display device of expression the 3rd embodiment.
Fig. 7 is the side view of the lighting display device of the expression four embodiment of the invention that can carry out the colorful one illumination.
Fig. 8 is the side view of the lighting display device of the expression fifth embodiment of the invention that can carry out the colorful one illumination.
Fig. 9 is the side view of the lighting display device of expression sixth embodiment of the invention.
Figure 10 is the side view of the lighting display device of expression seventh embodiment of the invention.
Embodiment
Lighting display device 1 shown in Figure 1 has reflection display part 2 and the light unloading part 3 that is positioned at its rear side.Below, will illustrate top (Z1 direction) as the place ahead, the face of each layer towards the Z1 direction described as the surface, (Z2 direction) is as the rear, describe the face of each layer towards the Z2 direction below will illustrate as the back side.
The rear of light unloading part 3 (Z2 direction) is the inside of carrying the equipment body of this lighting display device 1, for example disposes the switching mechanism pushed from the place ahead via lighting display device 1 etc.Forwards (Z1 direction) light of sending is visual by the user from lighting display device 1.
As shown in Figure 1, reflection display part 2 has first optical waveguide layer 11.First optical waveguide layer 11 is formed by light transmission, flexual synthetic resin sheet, for example is polyurethane sheet, polycarbonate sheet or PET (polyethylene terephthalate) sheet.The surperficial 11a of first optical waveguide layer 11 and back side 11b are even surface.First optical waveguide layer 11 can make incide inner light and the outside between boundary surface be surperficial 11a or back side 11b reflection and make it at internal communication, for transparent or semitransparent.
Rear at the back side 11b of first optical waveguide layer 11 is provided with light scattering layer 12 with the mode partition distance with first optical waveguide layer, 11 optical fractionation.Light scattering layer 12 can make the light scattering of giving to surperficial 12a and (Z1 direction) reflection forwards, and can make to light that back side 12b gives in transmission in surperficial 12a scattering.
Can make the material of light scattering through internal structure, be the crystalline material that inside has the crystal boundary that light is reflected, absorbs, or the material of multiple material mixing and inner optical transmission path change etc.Perhaps, be the synthetic resin sheet of having sneaked into the white fillers such as micro mist of magnesium oxide or calcium oxide in inside.Perhaps, be the translucent white resin sheet etc. that contains the pigment of adularescent etc.
Perhaps, so long as make the material of reflected light and transmission light-scattering layer, then also can be than fibrous structure things such as thin paper wood or nonwoven fabrics.
Between the surperficial 12a of the back side 11b of first optical waveguide layer 11 and light scattering layer 12, be provided with first and show optical waveguide layer 13.First shows that the flat shape of optical waveguide layer 13 is the patterns that become literal, numeral, mark and other figures of first demonstration; In this embodiment; Shown in Fig. 2 (A), from forward observation the time, first shows that optical waveguide layer 13 is formed by the pattern of expression numeral " 8 ".
First shows that optical waveguide layer 13 is can be at the transparent or semitransparent synthetic resin layer or the bond layer of internal communication light.For example, first shows that optical waveguide layer 13 is the double sticky tapes that on basement membrane two-sided, are provided with bond layer, is close to the back side 11b that is fixed in first optical waveguide layer 11 and the surperficial 12a of light scattering layer 12 through above-mentioned bond layer.Perhaps, first shows that optical waveguide layer 13 is the films that formed by synthetic resin material identical with optical waveguide layer 11 or synthetic resin material of the same race, and this film is close to the back side 11b that is fixed in first optical waveguide layer 11 and the surperficial 12a of light scattering layer 12 via bonding agent or adhesive.Perhaps, first shows that the integral body of optical waveguide layer 13 is bonding agent or adhesive agent layer, by forming at the bonding agent of the polyurethane series of internal communication light etc.Perhaps, first shows that optical waveguide layer 13 also can be that integral body forms by having adhering resin material.
Between the back side 11b of first optical waveguide layer 11 and the surperficial 12a of light scattering layer 12 and be not provided with first show optical waveguide layer 13 part, be to make light transmissive photic zone 14.Photic zone 14 is that refractive index ratio first optical waveguide layer 11 and first shows all low layer of optical waveguide layer 13 both sides.The refringence that refringence between the photic zone 14 and first optical waveguide layer 11 and photic zone 14 and first show between the optical waveguide layer 13 is greater than the refringence between first optical waveguide layer 11 and the first demonstration optical waveguide layer 13.Otherwise, showing that with refringence between first optical waveguide layer 11 and the photic zone 14 and first refringence between optical waveguide layer 13 and the photic zone 14 compares, first optical waveguide layer 11 and first shows that the refringence between the optical waveguide layer 13 is small.
Embodiment shown in Figure 1 does, above-mentioned photic zone 14 is an air layer, and the refractive index that first optical waveguide layer 11 and first shows optical waveguide layer 13 both sides is roughly 1.5, and the refractive index of relative air layer is roughly 1.0 therewith.First optical waveguide layer 11 and first shows the refringence between the optical waveguide layer 13, is preferably below 0.2, more preferably below 0.1.In addition, above-mentioned photic zone 14 can not be an air layer also, and by low-refraction, light transmissive transparent resin layer is formed.
As shown in Figure 1, opposed as the end face 11c towards the left side of the light emitting diode 15 of first light source and first optical waveguide layer 11.The light that sends from light emitting diode 15 incides the inside of first optical waveguide layer 11 from above-mentioned end face 11c.The left part of light scattering layer 12 and light unloading part 3 covers with cover 16, and the light that sends from light emitting diode 15 incides first optical waveguide layer 11, but does not directly give to light scattering layer 12 and light unloading part 3.
In light unloading part 3,, be provided with second optical waveguide layer 21 with mode partition distance with light scattering layer 12 optical fractionation at the rear of the back side of light scattering layer 12 12b.Second optical waveguide layer 21 is light transmission, flexual synthetic resin sheet, and surperficial 21a and back side 21b are level and smooth.Second optical waveguide layer 21 uses and first optical waveguide layer, 11 identical materials.
Between the back side 12b of the surperficial 21a of second optical waveguide layer 21 and scattering layer 12, be provided with second and show optical waveguide layer 22.Second shows that the flat shape of optical waveguide layer 22 is the patterns that become literal, numeral, mark and other figures of second demonstration, and in this embodiment, shown in Fig. 2 (B), second shows that optical waveguide layer 22 is formed by the pattern of expression letter " A ".
The second demonstration optical waveguide layer 22 is fixed on second optical waveguide layer 21 perhaps integrally formed with second optical waveguide layer 21, and is fixed on the back side 12b of light scattering layer 12.Second shows that the structure and above-mentioned first of optical waveguide layer 22 shows that optical waveguide layer 13 is identical.
Between the back side 12b of the surperficial 21a of second optical waveguide layer 21 and light scattering layer 12, be not provided with second show optical waveguide layer 22 part, be formed with photic zone 23.Same with above-mentioned photic zone 14, photic zone 23 is that refractive index ratio second optical waveguide layer 21 and second shows all low layer of optical waveguide layer 22.Photic zone 23 for example is an air layer by constituting with photic zone 14 identical materials.
As shown in Figure 1, first shows that optical waveguide layer 13 and second shows that optical waveguide layer 22 is configured to, and its part is overlapping on the direction of front and back (Z direction).
Form first optical waveguide layer 11 and second optical waveguide layer 21 through identical synthetic resin sheet; Form first through same material with same configuration and show that optical waveguide layer 13 and second shows optical waveguide layer 22; And make photic zone 14 and photic zone 23 be same configuration; Can lighting display device 1 be constituted the duplexer of object sheet up and down thus, make and become easy.
As shown in Figure 1, opposed as the end face 21c towards the right side of the light emitting diode 24 of secondary light source and second optical waveguide layer 21.The light that sends from light emitting diode 24 incides second optical waveguide layer, 21 inside from end face 21c.The right part of first optical waveguide layer 11 and light scattering layer 12 covers with cover 25, and the light that sends from light emitting diode 24 can not be directly incident on first optical waveguide layer 11 and light scattering layer 12 inside.
This lighting display device 1 turns off the light the light emitting diode 24 as secondary light source through making to light a lamp as the light emitting diode 15 of first light source, and first shown in thus can light chart 2 (A) shows.
The light that sends from light emitting diode 15 incides first optical waveguide layer, 11 inside from end face 11c.Incide the major part of the light component L1 of first optical waveguide layer, 11 inside; Boundary surface between surperficial 11a and air outside layer is reflected, and overleaf 11b and the boundary surface of photic zone (air layer) between 14 be reflected, and at the internal communication of first optical waveguide layer 11.But; The boundary portion that first optical waveguide layer 11 and first shows between the optical waveguide layer 13; There are not refringence or refringence small in fact; So the part of the light component L1 of first optical waveguide layer, 11 internal communications enter into first show optical waveguide layer 13 inside, through with first show that light scattering layer 12 that optical waveguide layer 13 is close to becomes scattered light L2 and is reflected.By the scattered light L2 of light scattering layer 12 reflection only through first show optical waveguide layer 13 inside, and transmission first optical waveguide layer 11 and (Z1 direction) outgoing forwards.
By the scattered light L2 of light scattering layer 12 reflections, only forwards derive with the zone that light scattering layer 12 is close to from the first demonstration optical waveguide layer 13.Shown in Fig. 2 (A), the zone that the first demonstration optical waveguide layer 13 and light scattering layer 12 are close to forms the pattern of numeral " 8 ".Therefore, illuminated brightly as first display digit " 8 ", and in the past can be enough visual.When the light that sends from light emitting diode 15 is white light, light scattering layer 12 during for white or milky, first " 8 " illuminated pattern that is shown as white of showing.At the light that sends from light emitting diode 15 when being white light, light scattering layer 12 for such colored tone such as redness or blueness, first " 8 " that show are illuminated to be shown as colored pattern.For red or blue colorama, light scattering layer 12 during for white or milky, the color that first " 8 " that show are illuminated to be shown as with light is the pattern of same color at the light that sends from light emitting diode 15.
Light a lamp at light emitting diode 15, when turning off the light, do not give light, almost can't see second demonstration from the place ahead by " A " literal that pattern showed of the second demonstration optical waveguide layer 22 to the second demonstration optical waveguide layer 22 as the light emitting diode 24 of secondary light source.
Then, turn off the light, make when lighting a lamp as the light emitting diode 24 of secondary light source when making as the light emitting diode 15 of first light source, second shown in Fig. 2 (B) shows illuminated demonstration.
The light that sends from light emitting diode 24 incides the inside of second optical waveguide layer 21 from end face 21c.In the inside of second optical waveguide layer 21, because surperficial 21a and photic zone (air layer) refringence and the refringence between back side 21b and the air outside layer between 23, the light quilt is propagated as light component La towards the internal reflection of second optical waveguide layer 21.The boundary portion that second optical waveguide layer 21 and second shows between the optical waveguide layer 22; There are not refringence or refringence small; So the part of the light component La of second optical waveguide layer, 21 internal communications get into second show optical waveguide layer 22 inside, and from the back side 12b towards surperficial 12a ground transmission light-scattering layer layer 12.Transmission the light of light scattering layer 12 become scattered light.
Transmission a part of composition Lb of scattered light of light scattering layer 12, transmission first shows inside and (Z1 direction) outgoing forwards of the optical waveguide layer 13 and first optical waveguide layer 11.Other compositions Lc transmission photic zone 14 of scattered light and first optical waveguide layer 11 and outgoing forwards.
The inside of transmittance light scattering layer 12 and become the zone of scattered light only is second to show the zone that optical waveguide layer 22 and light scattering layer 12 are close to.Shown in Fig. 2 (B), the second demonstration optical waveguide layer 22 is the pattern form of expression second displaying contents with the zone that light scattering layer 12 is close to, so from forward observation, letter " A " is illuminated brightly as second demonstration and shows.
Since transmission the only scattered light of " A " pattern of light scattering layer 12, so can show optical waveguide layer 13 and photic zone 14, almost can't see first shown in Fig. 2 (A) from the place ahead and show i.e. numeral " 8 " with roughly the same condition transmission first.
That is, the shape that first shown in Fig. 2 (A) shows exists with ... the pattern that light scattering layer 12 and first shows the zone that optical waveguide layer 13 is close to, and the shape that second shown in Fig. 2 (B) shows exists with ... the pattern that light scattering layer 12 and second shows the zone that optical waveguide layer 22 is close to.First shows optical waveguide layer 13 under any circumstance, all only plays the effect that the scattered light that is formed by above-mentioned pattern is directed to first optical waveguide layer 11, and the shape of the first demonstration optical waveguide layer 13 can not produce considerable influence to the travel condition of light.Therefore, when light emitting diode 24 being lit a lamp, can reach in the past and see that more brightly second shown in Fig. 2 (B) shows i.e. letter " A ", show i.e. numeral " 8 " but almost can't see first shown in Fig. 2 (A) in that light emitting diode 15 is not lit a lamp.
First displaying contents shows that by first the flat shape of optical waveguide layer 13 determines; Second displaying contents shows that by second the flat shape of optical waveguide layer 22 determines; So show that through changing first optical waveguide layer 13 and second shows that the flat shape of optical waveguide layer 22 perhaps changes the combination of flat shape, can switch arbitrarily displaying contents and show.
In addition, select, can transfer to show the letter " A " that shows as second with plurality of color through the color of the light that sends to the tone of light scattering layer 12 or from light emitting diode 24.
In addition, the color harmony through making the light that sends from light emitting diode 15 is different each other from the tone of the light that light emitting diode 24 sends, and can come the demonstration of second shown in first demonstration shown in the displayed map 2 (A) and Fig. 2 (B) through the light of different tones.
Lighting display device 1 shown in Figure 1 does, first optical waveguide layer 11 and second optical waveguide layer 21 are flexual synthetic resin sheet, and light scattering layer 12 also is a pliability.Therefore, below lighting display device 1, switching mechanism is set, press...withing one's finger to press is provided with the zone that the first demonstration optical waveguide layer 13 and second shows optical waveguide layer 22, can make the switch mechanism movement that is positioned at its below thus.
Perhaps, also can be at the transparent touch panel of the place ahead configuration of the surperficial 11a of first optical waveguide layer 11 of lighting display device 1, can operate above-mentioned touch panel in visual to carrying out from the illumination content of lighting display device 1.Transparent touch panel is that the difference of the interelectrode electrostatic capacitance of adversary's finger when near detects and confirms the panel of electrostatic capacitive of the coordinate of finger position contacting.Perhaps, this transparent touch panel is like lower panel: flexual insulating trip clips the space and faces mutually, up and down insulating trip in the face of portion forms transparent resistive layer, the variation through resistance value can detect by finger presses and the position that insulating trip contacts with each other.
In lighting display device illustrated in figures 1 and 2; First shows that the center and second of optical waveguide layer 13 shows that the center of optical waveguide layer 22 disposes at the left and right directions of figure with staggering; By first show optical waveguide layer 13 illuminations " 8 " literal first show and by second show optical waveguide layer 22 illuminations second being shown as of " A " literal, stagger and only a part of overlapping at left and right directions in the center.
But; As Fig. 3 (A) (B) shown in; Can be configured to; Make first to show that the center and second of optical waveguide layer 13 shows that the center of optical waveguide layer 22 is roughly consistent, and make by first show optical waveguide layer 13 illuminations " 8 " literal first center that show with show that by second the center of second demonstration of " A " literal of optical waveguide layer 22 illuminations is roughly consistent.Constitute through this, can in narrower zone, show with switching two bigger demonstrations.
Fig. 4 is the side view of the lighting display device 101 of expression second embodiment of the invention.This lighting display device 101 has the light unloading part 3A of reflection display part 2A and its below.
In reflection display part 2A, first optical waveguide layer 111 and first shows that optical waveguide layer 113 forms, and first shows that optical waveguide layer 113 is outstanding from the lower surface of first optical waveguide layer 111 downwards.For example, through so-called stamping method, can form first optical waveguide layer 111 and first and show optical waveguide layer 113; This stamping method does, to first show optical waveguide layer 113 the plane pattern surface that forms the substrate of recess supply with aqueous synthetic resin and make its sclerosis through ultraviolet ray etc., and from strippable substrate.First shows that optical waveguide layer 113 is formed by the plane patterns such as literal, numeral or mark that become first demonstration such shown in Fig. 2 (A).First shows that optical waveguide layer 113 and the bond layer 113a of light scattering layer 12 through light transmission fix.
In light unloading part 3A, second optical waveguide layer 121 and second shows that optical waveguide layer 122 forms through stamping method, and second shows that optical waveguide layer 122 projects upwards.Second shows that optical waveguide layer 122 is formed by the plane patterns such as literal, numeral or mark that become second demonstration such shown in Fig. 2 (B).Second shows that optical waveguide layer 122 and the bond layer 122a of light scattering layer 12 through light transmission fix.
The part of the first demonstration optical waveguide layer 113 is not set between first optical waveguide layer 111 and light scattering layer 12; Be formed with the photic zone 114 of the low-refraction of air etc.; Between second optical waveguide layer 121 and light scattering layer 12, be not provided with second show optical waveguide layer 122 part, be formed with the photic zone 123 of the low-refraction of air etc.
Lighting display device 101 shown in Figure 4 does; When making light from light emitting diode 15 during to 111 incidents of first optical waveguide layer; The numeral that shown in the displayed map 2 (A) first shows etc., when making light from light emitting diode 24 during to 121 incidents of second optical waveguide layer, the literal that second shown in the displayed map 2 (B) shows etc.
Fig. 5 representes the lighting display device 201 of third embodiment of the invention.This lighting display device 201 has the light unloading part 3B at reflection display part 2 and rear thereof.
First optical waveguide layer 11, the light scattering layer 12, first that constitute reflection display part 2 show optical waveguide layer 13 and photic zone 14, for reflection display part 2 identical construction shown in Figure 1.
On the back side 221b of the 3rd optical waveguide layer 221, be provided with reflecting part 226 at the downside of above-mentioned pattern formation portion 225.Reflecting part 226 does, on the back side 221b of the 3rd optical waveguide layer 221, formed tiny concavo-convex.Perhaps, reflecting part 226 is that 221b goes up and forms the resin bed or the metallic reflector of having sneaked into white filler overleaf.
Transmission the scattered light of light scattering layer 12, become the light that the shape to pattern formation portion 225 shows and forwards send, thus same with the situation shown in Fig. 2 (B), can throw light on and the pattern of pattern formation portion 225 corresponding second shows.
In addition, also above-mentioned light shield layer 224 can be set, and make reflecting part 226 become the pattern of literal, numeral, mark or figure, with this reflecting part 226 as pattern formation portion.In this case, by the literal of the pattern of reflecting part 226 performance or numeral etc., transmission light-scattering layer layer 12 and become scattered light, and transmission first shows optical waveguide layer 13 and photic zone 14, further transmission first optical waveguide layer 11 and outgoing forwards.
Fig. 6 representes the lighting display device 301 of third embodiment of the invention.Reflection display part 2 and Fig. 1 and reflection display part shown in Figure 5 are identical, are provided with first optical waveguide layer 11, the first demonstration optical waveguide layer 13 and as the light emitting diode 15 of first light source.
Light unloading part 3C has three optical waveguide layer 221 identical with embodiment shown in Figure 5, and is opposed as light emitting diode 24 and its end face of secondary light source.Auxiliary layer 321 is opposed via the surperficial 221a of photic zones such as air layer 223 and the 3rd optical waveguide layer 221.Auxiliary layer 321 is refractive index and the roughly the same lucite sheet of the 3rd optical waveguide layer 221.On the surperficial 321a of this auxiliary layer 321, be formed with light shield layer 224, this light shield layer 224 is removed the part according to the pattern of literal or mark, and forms pattern formation portion 225.
On the surperficial 321a of auxiliary layer 321, be provided with light scattering layer 312 partly.This light scattering layer 312 forms the above-mentioned pattern formation of covering portion 225, and is provided with closely with the first demonstration optical waveguide layer 13.In addition, the back side 221b of the 3rd optical waveguide layer 221 is provided with reflecting part same as shown in Figure 5 226.
When light emitting diode 24 is not lit a lamp and light emitting diode 15 when lighting a lamp, corresponding to first show optical waveguide layer 13 pattern and first show illuminated.When light emitting diode 15 is not lit a lamp light emitting diode 24 being lit a lamp, its light is reflected and transmission photic zone 223 and auxiliary layer 321 by reflecting part 226 at the 3rd optical waveguide layer 221 internal communications.And, through the inside of pattern formation portion 225, and in scattering in the transmission light-scattering layer layer 312.As a result, show illuminated with the pattern form of pattern formation portion 225 corresponding second.
Light scattering layer 312 shown in Figure 6 applies the translucent resin film through methods such as printing or applications and forms, and this translucent resin film is brought into play the function that makes light scattering through internal structure.Because light scattering layer 312 is thinner, therefore can constitute lighting display device 301 slim.In addition, through the internal structure of adjustment light scattering layer 312, the concentration that for example changes the filler that makes light scattering perhaps changes the thickness of light scattering layer 312, can change the scattering of light degree thus, can adjust brightness or lightness that first demonstration and second shows thus.
As shown in Figure 6; Between first optical waveguide layer 11 and the 3rd optical waveguide layer, be provided with a plurality of first and show optical waveguide layers 13 and a plurality of pattern formation portion 225; And the display part shown in Fig. 2 or Fig. 3 (A) is arranged in the device of many places; Difference according to from the distance of light sources such as light emitting diode 15 or light emitting diode 24 through change the nephelometric turbidity unit of light scattering layer 312 according to the position, can make the luminance deviation of each demonstration reduce thus.
In this case, the reflectivity of preferred reflecting part 226 also changes according to the difference of the distance that leaves light source.Be formed on concavo-convex size or density on the back side 221b of the 3rd optical waveguide layer 221 through change, or change the packing density that overlaps the resin bed on the 221b of the back side, or change the metal material that becomes metal level, can realize the variation of the reflectivity of reflecting part 226.
In addition; In lighting display device shown in Figure 11; Can also make photic zone 23 be the lower resin bed of refractive index, and only be provided with the part that the first demonstration optical waveguide layer 13 and second shows optical waveguide layer 22, on the surface of the photic zone 23 and the second demonstration optical waveguide layer 22, form light scattering layer partly.
Fig. 7 representes the lighting display device 401 of four embodiment of the invention, and Fig. 8 representes the lighting display device 501 of fifth embodiment of the invention.These two embodiments are that with the basis that is configured to of lighting display device shown in Figure 5 201, the light emitting diode 15,24 of white light is sent in use, can carry out the colorful one and show.
Lighting display device 401 shown in Figure 7 is between the 3rd optical waveguide layer 221 and light shield layer 224, to dispose color-filter layer 410.Color-filter layer 410 is in transparent resin, to sneak into pigment and painted layer, is light transmission.
When sending white light when making light emitting diode 24 not light a lamp, make light emitting diode 15 to light a lamp, first demonstration is illuminated corresponding to the pattern of the first demonstration optical waveguide layer 13.The illumination of this moment becomes the tone of light scattering layer 12.When sending white light when making light emitting diode 15 not light a lamp, make light emitting diode 24 to light a lamp; Because this transmittance color-filter layer 410 and light scattering layer 12, the color of therefore having mixed with the tone of color-filter layer 410 and light scattering layer 12 shows and the pattern of pattern formation portion 225 corresponding second shows.In this case, light scattering layer 12 is preferably the netrual colour of white etc.
Lighting display device 501 shown in Figure 8 is that first optical waveguide layer 11 is provided with color-filter layer 511, the three optical waveguide layers 221 and is provided with color-filter layer 512.The white light that sends from light emitting diode 15 is through color-filter layer 511 and become the colorful one light and at first optical waveguide layer, 11 internal communications.Therefore, the color that can mix with the tone of the color harmony light scattering layer 12 of color-filter layer 511 shows that first shows.
From the white light that light emitting diode 24 sends, transmissive color filter layer 512 also becomes the colorful one light and at the 3rd optical waveguide layer 221 internal communications.The color of therefore, having mixed with the tone of the color harmony light scattering layer 12 of color-filter layer 512 shows that second shows.So, light scattering layer 12 preferred netrual colours.In Fig. 8, different through making color-filter layer 511 with 512 tone, can show that first shows and second demonstration with various colors.
Fig. 9 representes the lighting display device 601 of sixth embodiment of the invention.This lighting display device 60 has the light unloading part 3D at reflection display part 2 and rear thereof.
First optical waveguide layer 11, the light scattering layer 12, first that constitute reflection display part 2 show optical waveguide layer 13 and photic zone 14, for reflection display part 2 identical construction shown in Figure 1.
In light unloading part 3D, be provided with illuminating part 621, the inside of illuminating part 621 has light sources such as light emitting diode.The light-emitting area 622 towards the place ahead of illuminating part 621 is provided with luminous slit, and the pattern of this luminous slit shows corresponding with literal, numeral or mark etc. second.
Lighting display device 601 shown in Figure 9 does, when light emitting diode 15 is lit a lamp, when illuminating part 621 is turned off the light, corresponding to first show optical waveguide layer 13 pattern, such first shows illuminated and shows shown in Fig. 2 (A).When light emitting diode 15 is turned off the light, when illuminating part 621 is lit a lamp; The light that becomes second pattern that show that sends from light-emitting area 622; Transmission light-scattering layer layer 12 and become scattered light, and transmission first shows optical waveguide layer 13 and photic zone 14, further transmission first optical waveguide layer 11 and outgoing forwards.
In addition, in the present invention, above-mentioned illuminating part 621 also can for, possess face light emitting sources such as electroluminescent cell, and send the light of second pattern that show.
Figure 10 representes to reflect the variation of display part 2.
In this example, at the rear of the back side 11b of first optical waveguide layer 11, with the mode of first optical waveguide layer, 11 optical fractionation, be provided with and have concavo-convex light scattering layer 12 on the surface.Concavo-convex owing to having on the surface of light scattering layer 12, thus between optical waveguide layer 11 and light scattering layer 12, form air layer, and roughly separate optically, and the light of in optical waveguide layer 11, propagating can be propagated light scattering layer 12 hardly with exerting an influence.
The layer that applies is melted at the interface that the first demonstration optical waveguide layer 13 forms between optical waveguide layer 11 and light scattering layer 12.This demonstration optical waveguide layer 13 can be formed as follows: after optical waveguide layer 11 and light scattering layer 12 is overlapping, through carrying out laser radiation etc., make at least one layer fusion at the interface of optical waveguide layer 11 and light scattering layer 12 and integrated.Through this demonstration optical waveguide layer 13 with optical waveguide layer 11 and light scattering layer 12 optical bond partly; Therefore same with the mode of Fig. 1; The light of in optical waveguide layer 11, propagating; Can be only be formed with show optical waveguide layer 13 part from light scattering layer 12 scatterings, first of the shape that shows optical waveguide layer 13 is shown.
Symbol description
1,101,201,301,401,501,601 lighting display devices
2,2A reflection display part
3,3A, 3B, 3C, 3D light unloading part
11 first optical waveguide layers
12 light scattering layers
13 first show optical waveguide layer
14 photic zones
15 light emitting diodes as first light source
21 second optical waveguide layers
22 second show optical waveguide layer
23 photic zones
24 light emitting diodes as secondary light source
111 first optical waveguide layers
113 first show optical waveguide layer
114 photic zones
121 second optical waveguide layers
122 second show optical waveguide layer
123 photic zones
221 the 3rd optical waveguide layers
224 light shield layers
225 pattern formation portions
312 light scattering layers
410 color-filter layers
511,512 color-filter layers
321 auxiliary layers
621 illuminating parts
Claims (11)
1. a lighting display device can show first demonstration and second and selectively throw light on, it is characterized in that,
Have:
Light scattering layer makes both sides' scattering of reflected light and transmitted light;
Optical waveguide layer is configured in to optical fractionation the surface of above-mentioned light scattering layer;
Light source is given light to the inside of above-mentioned optical waveguide layer;
Show optical waveguide layer, be configured between above-mentioned light scattering layer and the above-mentioned optical waveguide layer, will make its reflection to above-mentioned light scattering layer guiding at the light of above-mentioned optical waveguide layer internal communication; And
The light unloading part is given transmitted light to the back side of above-mentioned light scattering layer,
Above-mentioned demonstration optical waveguide layer forms the pattern that expression above-mentioned first shows, gives the light that expression above-mentioned second shows from above-mentioned smooth unloading part to above-mentioned light scattering layer.
2. the lighting display device of putting down in writing according to claim 1, wherein,
Above-mentioned demonstration optical waveguide layer and above-mentioned optical waveguide layer split ground form, and are fixed on the both sides of above-mentioned optical waveguide layer and above-mentioned light scattering layer.
3. the lighting display device of putting down in writing according to claim 2, wherein,
At least a portion of above-mentioned demonstration optical waveguide layer is a bond layer.
4. the lighting display device of putting down in writing according to claim 1, wherein,
Above-mentioned demonstration optical waveguide layer is that the part of above-mentioned optical waveguide layer is given prominence to and formed towards above-mentioned light scattering layer, and is fixed on the surface of above-mentioned light scattering layer.
5. the lighting display device of putting down in writing according to claim 1, wherein,
In the zone that above-mentioned demonstration optical waveguide layer is not set, between above-mentioned optical waveguide layer and above-mentioned light scattering layer, be provided with above-mentioned optical waveguide layer of refractive index ratio and all low low-index layer of above-mentioned demonstration optical waveguide layer both sides.
6. the lighting display device of putting down in writing according to claim 5, wherein,
Above-mentioned low-index layer is an air layer.
7. the lighting display device of putting down in writing according to claim 1, wherein,
Above-mentioned smooth unloading part has:
Second optical waveguide layer is from the back side optical fractionation ground configuration of above-mentioned light scattering layer;
Secondary light source is given light to the inside of above-mentioned second optical waveguide layer; And
Second shows optical waveguide layer, is configured between above-mentioned second optical waveguide layer and the above-mentioned light scattering layer, will make its transmission to the guiding of the back side of above-mentioned light scattering layer at the light of the above-mentioned second optical waveguide layer internal communication,
Above-mentioned second shows that optical waveguide layer forms the pattern that expression above-mentioned second shows.
8. the lighting display device of putting down in writing according to claim 7, wherein,
Above-mentioned second shows that optical waveguide layer and the above-mentioned demonstration optical waveguide layer that is arranged on the face side of above-mentioned light scattering layer are same configuration.
9. the lighting display device of putting down in writing according to claim 1, wherein,
Above-mentioned smooth unloading part has:
The 3rd optical waveguide layer is configured in the rear side of above-mentioned light scattering layer;
Light source is given light to the inside of above-mentioned the 3rd optical waveguide layer; And
Pattern formation portion will give above-mentioned light scattering layer at the light of above-mentioned the 3rd optical waveguide layer internal communication,
Above-mentioned pattern formation portion forms the pattern that expression above-mentioned second shows.
10. the lighting display device of putting down in writing according to claim 9, wherein,
Between above-mentioned light scattering layer and above-mentioned the 3rd optical waveguide layer, be provided with the light shield layer of blocking optical transmission, the part that has been short of at above-mentioned light shield layer is formed with above-mentioned pattern formation portion, in above-mentioned pattern formation portion, is provided with above-mentioned light scattering layer partly.
11. the lighting display device of putting down in writing according to claim 1, wherein,
Above-mentioned smooth unloading part is an illuminating part, and this illuminating part produces the light of the pattern of above-mentioned second demonstration of expression.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP2009118430 | 2009-05-15 | ||
| JP2009-118430 | 2009-05-15 | ||
| PCT/JP2010/058182 WO2010131735A1 (en) | 2009-05-15 | 2010-05-14 | Illuminated display device |
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| Publication Number | Publication Date |
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| CN102356421A true CN102356421A (en) | 2012-02-15 |
| CN102356421B CN102356421B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201080012062.4A Active CN102356421B (en) | 2009-05-15 | 2010-05-14 | Illuminated display device |
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| Country | Link |
|---|---|
| JP (1) | JP4979835B2 (en) |
| CN (1) | CN102356421B (en) |
| WO (1) | WO2010131735A1 (en) |
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| CN105551400A (en) * | 2015-12-07 | 2016-05-04 | 联想(北京)有限公司 | Light emitting module of electronic equipment and manufacturing method of light emitting module |
| CN106448501A (en) * | 2015-08-05 | 2017-02-22 | 阿尔卑斯电气株式会社 | Method for manufacturing a dimming apparatus |
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| TWI437327B (en) * | 2011-06-01 | 2014-05-11 | Au Optronics Corp | Back-light module |
| KR102293599B1 (en) * | 2014-12-23 | 2021-08-26 | 삼성전자주식회사 | Electronic appliance |
| JP6778916B2 (en) * | 2016-11-17 | 2020-11-04 | パナソニックＩｐマネジメント株式会社 | Display device |
| KR102449562B1 (en) * | 2017-11-27 | 2022-10-07 | 현대모비스 주식회사 | Transparent member for automobile interior parts |
| JP7054808B2 (en) * | 2018-06-26 | 2022-04-15 | パナソニックＩｐマネジメント株式会社 | Display device using veneer |
| DE102021104330A1 (en) | 2021-02-23 | 2022-08-25 | Bayerische Motoren Werke Aktiengesellschaft | User interface, means of transport and steering wheel for a means of transport with a transparent display device |
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Also Published As
| Publication number | Publication date |
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| CN102356421B (en) | 2014-04-16 |
| JPWO2010131735A1 (en) | 2012-11-08 |
| WO2010131735A1 (en) | 2010-11-18 |
| JP4979835B2 (en) | 2012-07-18 |
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Address after: Tokyo, Japan, Japan Patentee after: Alpine Alpine Company Address before: Tokyo, Japan, Japan Patentee before: Alps Electric Co., Ltd. |