Specific embodiment
<first embodiment>
Hereinafter, the embodiments of the present invention is described in detail referring to attached drawing.For each phase shown in the accompanying drawingsSame or equivalent constituent element, component, processing, mark identical appended drawing reference and suitably the repetitive description thereof will be omitted.Fig. 1 is tableShow the diagrammatic cross-section of the organic EL units of the lamps apparatus for vehicle of present embodiment.As shown in Figure 1, organic EL units have substrate11, organic luminous layer 12, transparent electrode 13, for electrical wiring 14, light taking-up portion 15, decorative zones 16 and translucency bonding agent 17.The transparent electrode and reflecting electrode supplied electric power for connecting with organic luminous layer 12, the illustration is omitted.In addition, though schemingEach component is expressed as substantially planar in 1, but also may include concaveconvex shape, curve form, can also be set as being scratched by havingProperty material constitute compliant member.
Substrate 11 is the substrate formed by the material for penetrating the light issued from organic luminous layer 12, and use is flexibleResin.It is formed with transparent electrode (not shown) and organic luminous layer 12 in a face of substrate 11, for the side at one end of electrical wiring 14It is electrically connected respectively with transparent electrode and reflecting electrode.
Organic luminous layer 12 is the luminescent layer being made of organic material, has electron supplying layer, luminescent layer, cavity conveyingLayer, the electronics supplied from electron supplying layer are issued and are advised with shining in conjunction at luminescent layer from the hole that hole transporting layer suppliesFixed light.In addition, being formed with the reflection electricity being made of Al, Ag etc. in the face of the side opposite with substrate 11 of organic luminous layer 12The light issued from organic luminous layer 12 is reflected in pole (illustration omitted).
Transparent electrode 13 is formed at the optically transparent electrode between organic luminous layer 12 and substrate 11.As transparent electrode13, such as use ITO (IndiumTinOxide (tin indium oxide)) etc..In Fig. 1, for being formed in organic luminous layer 12 and baseThe transparent electrode 13 of film between plate 11, the illustration is omitted.
It is the wiring pattern being electrically connected with transparent electrode 13 and reflecting electrode for electrical wiring 14, is equivalent in the utility modelWiring layer.In addition, keeping the electric current being externally supplied organic via transparent electrode 13 and reflecting electrode inflow for electrical wiring 14Luminescent layer 12.As shown in Figure 1, organic EL panel 10 have substrate 11, organic luminous layer 12, transparent electrode 13, for electrical wiring 14And reflecting electrode.
Light taking-up portion 15 is made of translucent material, is the portion contiguously configured with the light-emitting surface side of organic EL panel 10Part.Here, so-called be placed in contact with light-emitting surface side, include light taking-up portion 15 and the case where substrate 11 directly contacts andThe case where being pasted as shown in Figure 1 using translucency bonding agent 17.As the specific material for constituting light taking-up portion 15, can enumerateGlass, acrylic resin, epoxy resin, polycarbonate etc..
Decorative zones 16 are the regions that a part in light taking-up portion 15 is formed in using light-proofness material.Such as
Shown in Fig. 1, decorative zones 16 at least cover the region of organic EL panel 10 being equipped with for electrical wiring 14, hide from outsideGear is for electrical wiring 14.In order to sufficiently cover for the equal each component outside light emitting region of electrical wiring 14, preferably as shown in Figure 1Decorative zones are formed as than forming the region width for electrical wiring 14 from d.In addition, d is preferably 0.1mm or more 3.0mm or lessRange.
In fig. 1 it is shown that decorative zones 16 are set to the example of 17 side of translucency bonding agent in light taking-up portion 15, butIt can be set to the light-emitting surface side in light taking-up portion 15, it can also be formed integrally with light taking-up portion 15.As decorative zones 16Specific structure can be enumerated and print the structure for the ink for being not through light, the structure of metal film be deposited, has been coated with the knot of photomaskStructure passes through dual-color forming and the integrally formed structure in light taking-up portion 15 etc..
Translucency bonding agent 17 is made of the material that the light for issuing organic luminous layer 12 penetrates, for for taking out lightPortion 15 is adhered to the bonding agent of the light-emitting face of substrate 11.
In the organic EL units of present embodiment, if via the transparent electrode 13 for electrical wiring 14 to organic EL panel 10Apply voltage between reflecting electrode, then electronics and hole are injected with machine luminescent layer 12 and shine in conjunction with organic luminous layer12 entirety shine as light emitting region.The light issued from light emitting region is reflected by reflecting electrode, and transmission transparent electrode 13,Substrate 11, translucency bonding agent 17, light taking-up portion 15 and the outside for being fetched to organic EL units.On the other hand, dress is being formedLight is not taken out in the part in decorations region 16, only takes out light from the region of not formed decorative zones 16.
Fig. 2 is the attached drawing for indicating the trial-production example of organic EL units, and (a) of Fig. 2 shows the example for being formed with decorative zones 16Son, (b) of Fig. 2 show the example for not forming decorative zones 16.As shown in (b) of Fig. 2, in the peripheral edge margin of organic EL unitsIt is formed with for electrical wiring 14, even if can also see from light-emitting surface side for electrical wiring 14 under non-luminescent state.But such asShown in (a) of Fig. 2, power supply can be hidden to be only capable of seeing light emitting region by forming decorative zones 16 in light taking-up portion 15It is routed 14 and keeps good appearance.
As described above, in the organic EL units in present embodiment and the lamps apparatus for vehicle using the organic EL units,Decorative zones 16 are formed in a manner of covering and be equipped with for the region of electrical wiring 14, therefore organic EL units are either in luminous shapeUnder state or under non-luminescent state, all blocks from outside for electrical wiring 14 and cannot see that for electrical wiring 14.Only pass through shape as a result,It can block at decorative zones 16 for electrical wiring 14, without using appearance other than organic EL panel 10 and light taking-up portion 15With film, number of components can be reduced.
<second embodiment>
Next, being described in detail referring to second embodiment of the attached drawing to the utility model.For implementing with firstThe duplicate content of mode, omits the description.Fig. 3 is the diagrammatic cross-section for indicating the structure example of lamps apparatus for vehicle of present embodiment,(a) of Fig. 3 shows the example for using interior len 60 as light taking-up portion, and (b) of Fig. 3, which is shown, uses outer lens 50 as lightThe example in taking-up portion.
Lamps apparatus for vehicle shown in (a) of Fig. 3 has organic EL panel 10, lamp body 20, outer lens 50 and interior len 60.It is logicalIt crosses and combines lamp body 20 with outer lens 50, constitute the lamp house of lamps apparatus for vehicle.
Lamp body 20 is to maintain the housing parts of each component of lamps apparatus for vehicle, and interior len 60 is kept at inner bottom surface, andOuter lens 50 are set in a manner of covering opening portion.Being equipped on lamp body 20 will be from the electric power of lamps apparatus for vehicle externally suppliedIt is transmitted to internal connector portion, harness, internal wiring etc., but there is omitted herein diagram.
Outer lens 50 are the components being made of the material at least penetrating a part of light, and outer lens 50 are to cover lamp body 20The mode of opening portion be arranged and periphery is fixed, be to take the light from organic EL panel 10 to the outside of lamps apparatus for vehicleOptical component out.As the material for constituting outer lens 50, glass, acrylic resin, epoxy resin, polycarbonate can be enumeratedDeng for the viewpoints such as lightweight, impact resistance, durability, translucency, most preferably polycarbonate.
Interior len 60 is the component that constitutes of material by least penetrating a part of light, is accommodated in by lamp body 20 and outerIn the lamp house that lens 50 are constituted.The shape of interior len 60 either substantially planar, can also by using with curved surface andThe lens shape of distribution controls is carried out to improve aesthetic appearance.In addition, in the surface side of interior len 60 contacted with organic EL panel 10It is formed with the recess portion 61 for installing organic EL panel 10.The shape and depth of recess portion 61 and the shape pair of organic EL panel 10It answers, the light-emitting surface side of organic EL panel 10 is embedded in a contact fashion and is adhered to recess portion 61.Recess portion 61 is equivalent to practicalContraposition part in novel.
In addition, interior len 60 is equivalent to the light taking-up portion in the utility model, the formation with organic EL panel 10 has confessionThe region of electrical wiring 14 is accordingly formed with decorative zones 16 (illustration omitted).Therefore, only by being embedded in and being bonded to recess portion 61Organic EL panel 10 can be blocked for electrical wiring 14, in addition to this without using appearance film, can reduce number of components.
Lamps apparatus for vehicle shown in (b) of Fig. 3 has organic EL panel 10 and outer lens 50.Outer lens 50 with it is organicThe surface side that EL panel 10 contacts is formed with the recess portion 51 for installing organic EL panel 10.The shape and depth of recess portion 51 with haveThe shape of machine EL panel 10 is corresponding, and the light-emitting surface side of organic EL panel 10 is embedded in a contact fashion and is adhered to recess portion 51.Recess portion 51 is equivalent to the contraposition part in the utility model.
In addition, outer lens 50 are equivalent to the light taking-up portion in the utility model, the formation with organic EL panel 10 has confessionThe region of electrical wiring 14 is accordingly formed with decorative zones 16 (illustration omitted).Therefore, only by being embedded in and being bonded to recess portion 51Organic EL panel 10 can be blocked for electrical wiring 14, in addition to this without using appearance film, can reduce number of components.
In (a), (b) of Fig. 3, show be formed on outer lens 50 recess portion 51, be formed in interior len 60 it is recessedThe example in portion 61.By the way that recess portion 51,61 is arranged, become easy the contraposition of organic EL panel 10.But it is also possible to not formed recessedPortion 51,61, but the inner surface side in outer lens 50, interior len 60 directly pastes organic EL panel 10.
<third embodiment>
Next, being described in detail referring to third embodiment of the attached drawing to the utility model.For implementing with firstThe duplicate content of mode, omits the description.Fig. 4 is the vertical view signal for indicating the light-emitting surface of the organic EL panel 10 in present embodimentFigure, (a) of Fig. 4 show the example that organic luminous layer 12 is divided into three parts, and (b) of Fig. 4 is shown organic luminous layer12 are divided into tetrameric example.
In (a) of Fig. 4, the organic luminous layer 12 on substrate 11 is divided into middle section 12a and periphery area in faceDomain 12d.In addition, the current density for flowing to middle section 12a is set to be greater than peripheral edge margin 12d.
In (b) of Fig. 4, the organic luminous layer 12 on substrate 11 is divided into the middle section 12a in face, in encirclementThe intermediate region 12b that entreats the mode in the outside of region 12a to be formed, it is formed in a manner of the outside for surrounding intermediate region 12bBetween the region 12c and peripheral edge margin 12d formed in a manner of surrounding most peripheral.In addition, according to middle section 12a, intermediate regionThe size of the sequence setting electric current density of 12b, intermediate region 12c, peripheral edge margin 12d.
In organic EL panel 10, there is following problem: if moisture enters inside from the most peripheral of organic luminous layer 12, havingThe deterioration of machine luminescent layer 12 develops and generates blackspot, and non-luminous non-luminous region flowing through electric current is caused to increase.In addition,The development of deterioration in organic luminous layer 12 and the generation of blackspot have the following characteristics that the current density flowed through is bigger, easier productionIt is raw.
In the present embodiment, in the peripheral edge margin 12d of organic luminous layer 12, compared to middle section 12a, make to flow throughCurrent density is smaller, therefore is being easy to reduce current density near the periphery because of the generations deterioration such as entrance of moisture, is able to suppressThe development of deterioration.Thereby, it is possible to reduce the reply component for preventing organic EL panel from deteriorating, number of components can be reduced.
In addition, there are illusion thinking that middle section is nearby compared in the periphery for carrying out luminous region in the vision of the mankindBrighter edge effect.In peripheral edge margin 12d, since the edge effect can be utilized, even if making in current density ratioIt entreats region 12a small, also can see the brightness of same degree in middle section 12a and peripheral edge margin 12d.It can get edge effectRange be 1~2mm or so, therefore the width of peripheral edge margin 12d is preferably the range of 1~2mm or so.
In addition, intermediate region 12b, the 12c of (b) of Fig. 4 are configured at the peripheral edge margin 12d and middle section 12a of most peripheralBetween, set on the range that can not obtain edge effect.In this case, by making current density middle section 12a, middle areaThe size of the sequence of domain 12b, intermediate region 12c, can be to have the brightness of gradient from middle section 12a to peripheral edge margin 12dDistribution, which obtains, has relief sending light.
Fig. 5 is the wiring for indicating the transparent electrode 13 for realizing the light-emitting surface of organic EL panel 10 shown in Fig. 4 (b)The schematic top plan view of pattern.As shown in figure 5, the transparent electrode 13 of organic EL panel 10 with middle section shown in (b) of Fig. 412a, intermediate region 12b, 12c, the corresponding mode of peripheral edge margin 12d are respectively formed with central wiring portion 13a, intermediate wiring portion13b, 13c, periphery wiring portion 13d.
Therefore, the current density ratio that organic luminous layer 12 is flowed to from periphery wiring portion 13d has from central wiring portion 13a flow directionThe current density of machine luminescent layer 12 is small.In addition, from intermediate wiring portion 13b, 13c flow to the current density ratio of organic luminous layer 12 fromThe current density that central wiring portion 13a flows to organic luminous layer 12 is small, and than flowing to organic luminous layer 12 from periphery wiring portion 13dCurrent density it is big.
In addition, being formed locally as shown in partial enlarged view in figure in intermediate wiring portion 13b, 13c, periphery wiring portion 13dThere is joint-cutting.Extend positioned at the central wiring portion 13a of inside, a part of intermediate wiring portion 13b, 13c as wiring pattern, leads toCross the end that the joint-cutting part leads to substrate 11.In the end of substrate 11, as shown in Figure 1, transparent electrode 13 is electrically connected to confessionElectrical wiring 14.
Fig. 6 is the process chart for illustrating schematically that the manufacturing method of organic EL panel 10 shown in Fig. 4 (a).On a left side of Fig. 6Side shows schematic top plan view, and lateral diagrammatic cross-section is shown on right side.
Firstly, as shown in (a) of Fig. 6, prepared substrate 11 forms the central wiring portion of transparent electrode 13 on the substrate 1113a, periphery wiring portion 13d and for electrical wiring 14, use common photoetching technique to form pattern.Next, such as (b) institute of Fig. 6Show, form a film out insulating layer 18, retains the essential regions in transparent electrode 13 and forms pattern.Next, as shown in (c) of Fig. 6,Organic luminous layer 12 is formed a film in the entire surface of light emitting region.Finally, forming a film on organic luminous layer 12 as shown in (d) of Fig. 6Reflecting electrode 19 out, to obtain organic EL panel 10.
It is folded between Xiang Zhongyang wiring portion 13a and periphery wiring portion 13d and reflecting electrode 19 in organic EL panel 10Region in flow through electric current, as shown in (e) of Fig. 6, organic luminous layer 12 with central wiring portion 13a and periphery wiring portionThe corresponding shape of 13d shines.
As described above, flowing to the current density of organic luminous layer 12 in periphery in the lamps apparatus for vehicle of present embodimentIt is smaller than in central wiring portion 13a in wiring portion 13d, therefore it is able to suppress deterioration at the peripheral edge margin of organic EL panel 10Development.Thereby, it is possible to reduce the reply component for preventing organic EL panel 10 from deteriorating, number of components can be reduced.
<the 4th embodiment>
Next, being described in detail referring to fourth embodiment of the attached drawing to the utility model.For implementing with firstThe duplicate content of mode, omits the description.Fig. 7 is the diagrammatic cross-section for indicating the construction of organic EL panel 10 of present embodiment,(a) of Fig. 7 shows the example that organic luminous layer is one layer, and (b) of Fig. 7 shows the example that organic luminous layer is multilayer.ThisEmbodiment shows the case where organic EL panel 10 is used in the mark lamp as lamps apparatus for vehicle.
In the example shown in (a) of Fig. 7, it is formed with transparent electrode 13 on the substrate 11, is formed in transparent electrode 13There is organic luminous layer 12, reflecting electrode 19 is formed on organic luminous layer 12.For other constituent elements, the illustration is omitted.
The organic luminous layer 12 of present embodiment is used for issuing red light and issues near infrared light.As sending red lightWith the material of the organic luminous layer 12 of near infrared light, can enumerate the well known organic EL Material for being used to issue red light and knownSending near infrared light organic EL Material mixing etc..Alternatively, it is also possible to use can issue red light and near infrared light oneKind organic EL Material.Therefore, organic EL panel 10 includes red and near-infrared in the wave-length coverage of emergent light.
In the example shown in (b) of Fig. 7, it is formed with transparent electrode 13 on the substrate 11, is formed in transparent electrode 13There are organic luminous layer 12x, 12y, is formed with charge generation layer 12z between organic luminous layer 12x and 12y.In addition, in organic hairReflecting electrode 19 is formed on photosphere 12y.For other constituent elements, the illustration is omitted.
In the present embodiment, organic luminous layer 12x is made of the organic EL Material of sending near infrared light, organic luminous layer12y is made of the organic EL Material of sending red light.Therefore, organic EL panel 10 includes red in the wave-length coverage of emergent lightAnd near-infrared.
CCD (Charge Coupled Device (charge-coupled device)) and CMOS (Complementary MetalOxide Semiconductor (complementary metal oxide semiconductor)) grayscale camera in the near infrared region of 800~1000nmThere is sensitivity, LiDAR makes the laser diode of the near infrared region of 890nm and 905nm shine and detects its reflection in domainLight.
As described above, in the lamps apparatus for vehicle using the organic EL panel 10 of present embodiment, in the wavelength of emergent lightInclude red and near-infrared in range.Therefore, when issuing red light in lamps apparatus for vehicle, near infrared light can be issued, is heldEasily lamps apparatus for vehicle is carried out using detection devices such as grayscale camera, laser radar, LiDAR to light detection.Thereby, it is possible to subtractLess for ease of number of components can be reduced by the addition light source that various detection devices detect and use.
In addition, even if in the case where captured by camera front truck is difficult to be utilized because of the mal-conditions such as rain, mist, remote,And in the case where the reflected light of the near-infrared from front truck is less, the sensors such as camera, LiDAR also can easily be knownOther front truck can reduce automatic Pilot vehicle, automatic brake carries the detection mistake of vehicle and improves safety.
<the 5th embodiment>
Next, being described in detail referring to fiveth embodiment of the attached drawing to the utility model.For implementing with firstThe duplicate content of mode, omits the description.Fig. 8 is the vertical view signal for indicating the pixel structure of image display device of embodimentFigure, (a) of Fig. 8, which is shown, is used for issuing with red sub-pixel the example of near infrared light, (b) of Fig. 8 show it is red andThe example that the sub-pixel of near-infrared is arranged independently of one another.This embodiment illustrates organic EL panel 10 is used in as vehicleThe case where with the image display devices of lamps and lanterns.
(a) of Fig. 8 enlargedly shows a pixel of image display device, is made of three sub-pixels.Sub-pixel 12BBlue light is issued, sub-pixel 12G issues green light.Another sub-pixel 12R issues red light, and is also also used as issuing close redThe sub-pixel 12IR of outer light.(b) of Fig. 8 enlargedly shows a pixel of image display device, is made of four sub-pixels.Sub-pixel 12B issues blue light, and sub-pixel 12G issues green light, and sub-pixel 12R issues red light, and sub-pixel 12IR issues closeInfrared light.
The image display device of present embodiment can be used as the equipment for showing common image and video, can also pass throughIt shows specific color and shape and realizes the function as mark lamp.As mark lamp, Brake lamp, high-order braking can be enumeratedLamp, taillight, position lamp, back-up lamp, daytime running lamps, headlamp, fog lamp etc..
As described above, in the image display device of present embodiment, and comprising red in the wave-length coverage of emergent lightColor and near-infrared.Therefore, near infrared light, monochrome photography easy to use can be issued when image display device issues red lightThe detection devices such as machine, laser radar, LiDAR carry out lamps apparatus for vehicle to light detection.Thereby, it is possible to reduce for ease of eachThe addition light source that detection device is detected and used is planted, number of components can be reduced.
In addition, even if in the case where being difficult to because of the mal-conditions such as rain, mist, remote with captured by camera front truck, withAnd in the case where the reflected light of the near-infrared from front truck is less, the sensors such as camera, LiDAR can also be readily recognizedFront truck can reduce automatic Pilot vehicle, automatic brake carries the detection mistake of vehicle and improves safety.
The utility model is not limited to the respective embodiments described above, can carry out various changes in range shown in claimMore, that embodiment obtained by disclosed technological means is appropriately combined respectively in different embodiments is also contained in this is practical newIn the technical scope of type.