CN109973935A - OLED light emitting device and tail-light - Google Patents
OLED light emitting device and tail-light Download PDFInfo
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- CN109973935A CN109973935A CN201910235632.9A CN201910235632A CN109973935A CN 109973935 A CN109973935 A CN 109973935A CN 201910235632 A CN201910235632 A CN 201910235632A CN 109973935 A CN109973935 A CN 109973935A
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- Prior art keywords
- light
- diffusing reflection
- bottom plate
- reflection layer
- oled light
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
- F21S43/145—Surface emitters, e.g. organic light emitting diodes [OLED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
- F21Y2115/15—Organic light-emitting diodes [OLED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses a kind of OLED light emitting device and tail-lights, it is related to technical field of lighting fixtures, main purpose is to emit beam to OLED light tiles by covering diffusing reflection layer on bottom plate and uniformly broken up back reflection, it realizes and improves light extraction efficiency, and improve big visual angle brightness.A kind of main technical schemes of the invention are as follows: light emitting device, the device includes: bottom plate and OLED light tiles, diffusing reflection layer is provided on bottom plate, OLED light tiles are layed on diffusing reflection layer, and diffusing reflection layer is used to that diffusing reflection will to be carried out by the light of OLED light tiles directive bottom plate.Present invention is mainly used for illuminations.
Description
Technical field
The present invention relates to technical field of lighting fixtures more particularly to a kind of OLED light emitting devices and tail-light.
Background technique
With the continuous development of electroluminescent technology, such as Organic Light Emitting Diode (Organic Light-Emitting
Diode, OLED) etc. had been more and more widely used using the light source of electroluminescent principle, wherein OLED have self-luminous,
Wide viewing angle, almost infinite high contrast, compared with low power consumption, high reaction speed the advantages that, receive extensive concern.
OLED, as in the light emitting device of light source, is only simply layed in default stationary plane, still using OLED by tradition
Since the characteristic of OLED is that oneself shines, and light is to all the winds propagated simultaneously, tradition ignores pair the application of OLED
The adjustment in oled light line direction, causes light emitting device light uneven, and light utilization is low.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of OLED light emitting device and tail-light, main purpose pass through in bottom plate
Upper setting diffusing reflection layer, emits beam to OLED and is uniformly broken up back reflection, realizes and improves light extraction efficiency, and improves big visual angle
Brightness.
In order to achieve the above objectives, present invention generally provides following technical solutions:
On the one hand, the embodiment of the invention provides a kind of OLED light emitting device, which includes:
Bottom plate and OLED light tiles are provided with diffusing reflection layer on bottom plate, and OLED light tiles are layed on diffusing reflection layer, overflow anti-
Layer is penetrated for diffusing reflection will to be carried out by the light of OLED light tiles directive bottom plate
Optionally, diffusing reflection layer is the diffusive reflective plate with multiple protrusion particles；
Multiple protrusion particles are located at the first side of diffusive reflective plate, and the first side of diffusive reflective plate is set relative to OLED light tiles
It sets.
Optionally, diffusing reflection layer and bottom plate are integrally formed.
Optionally, diffusing reflection layer is metal coating.
Optionally, diffusing reflection layer reflectivity is more than or equal to 85 percent.
Optionally, OLED light tiles are Nian Jie with the connection type of diffusing reflection layer.
Optionally, by optics glue sticking, the refractive index of optical cement is sent out more than or equal to OLED for OLED light tiles and diffusing reflection layer
The refractive index of mating plate.
Optionally, that prolongs that bottom plate edge is provided perpendicular to the bottom plate blocks item, blocks on item relative to bottom plate side
It is covered with diffusing reflection layer.
Optionally, OLED light tiles include multiple sub- light tiles, and multiple sub- light tiles are layed in respectively on diffusing reflection layer, and
There is gap between multiple sub- light tiles, the protrusion positioned at gap is provided on bottom plate, raised side wall is covered with diffusing reflection layer.
On the one hand, the embodiment of the invention also provides a kind of tail-light, which includes:
OLED light emitting device as described in any one of the above embodiments.
A kind of OLED light emitting device and tail-light that the embodiment of the present invention proposes, main purpose are unrestrained by being arranged on bottom plate
Reflecting layer emits beam to OLED light tiles and is uniformly broken up back reflection, realizes and improves light extraction efficiency, and it is bright to improve big visual angle
Degree.And in the prior art, OLED is simply only layed in default stationary plane, since the characteristic of OLED is that oneself shines, and light
Line is to all the winds propagated simultaneously, causes light emitting device light uneven, and light utilization is low.Compared with prior art, originally
OLED light emitting device and tail-light in application documents, by the way that diffusing reflection layer is arranged on bottom plate, by OLED light tiles to bottom plate
The light that direction issues carries out diffusing reflection, increases the uniformity of reflection light, increases the range for injecting light in air, protects simultaneously
Reflection efficiency is demonstrate,proved, increases light emission rate, and then improve big visual angle brightness.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the OLED light emitting device provided in an embodiment of the present invention at the first visual angle；
Fig. 2 is a kind of structural schematic diagram of the OLED light emitting device provided in an embodiment of the present invention at the second visual angle；
Fig. 3 is structural schematic diagram of the another kind OLED light emitting device provided in an embodiment of the present invention at the second visual angle；
Fig. 4 is the structural schematic diagram of a kind of diffusing reflection layer provided in an embodiment of the present invention and optical adhesive layer；
Fig. 5 is a kind of schematic perspective view of bottom plate provided in an embodiment of the present invention；
Fig. 6 is structural schematic diagram of another bottom plate provided in an embodiment of the present invention at the first visual angle.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to OLED light emitting device proposed according to the present invention and tail-light its specific embodiment, structure, spy
Sign and its effect, detailed description is as follows.
On the one hand, as shown in Figure 1, the embodiment of the invention provides a kind of OLED light emitting device 1, which includes:
Bottom plate 2 and OLED light tiles 3 are provided with diffusing reflection layer 4 on bottom plate 2, and OLED light tiles 3 are layed in diffusing reflection layer 4
On, diffusing reflection layer 4 is used to that diffusing reflection will to be carried out by the light of 3 directive bottom plate 2 of OLED light tiles.
Wherein, OLED light tiles 3 are using machine light emitting diode (Organic Light-Emitting Diode, OLED)
Manufactured light tiles, OLED light tiles 3 are whole piece flexibility light tiles, whole face uniformly light-emitting and light prolongs from all directions simultaneously
It issues, OLED light tiles 3 have characteristic that is frivolous and can arbitrarily bending.Specifically, OLED mainly includes successively layer from the bottom to top
Base, organic layer, anode (transparent), conductive layer, emission layer and the cathode of folded setting, base are transparent plastic, glass etc., base
For supporting entire OLED, organic layer is made of organic molecule or organic polymer, anode (transparent), conductive layer, emission layer
Emission layer is set to shine with cathode collective effect.When transparent OLED is powered, light two-way can pass through, and in the prior art, use is general
Logical bottom plate, light a part that OLED is issued to bottom plate side can be absorbed by bottom plate, and another part non-uniform reflection leads to light out
Rate decline, multi-angle observation light are uneven.To solve the above problems, the present invention is shone OLED by setting diffusing reflection layer 4
The light that 3 opposed bottom of piece, 2 side issues is reflected back in air, increases by 3 light emission rate of OLED light tiles, and diffusing reflection layer 4 plays
The effect that light is broken up expands 1 light emitting angle of light emitting device, guarantees the brightness uniformity of different perspectives viewing light emitting device 1.Tool
Body, RMS (microroughness)=20~50nm of diffusing reflection layer 4,4 reflectivity > 85% of diffusing reflection layer most preferably goes out light efficiency to reach
Fruit.OLED light tiles 3 can be set in a variety of forms on bottom plate 2, as shown in Fig. 2, it is covered with a piece of OLED on one piece of bottom plate 2,
The edge OLED is overlapped with 2 edge of bottom plate, alternatively, as shown in figure 3, multiple OLED light tiles 3 are arranged on one piece of bottom plate 2, it is multiple
OLED light tiles 3 are juxtaposed on bottom plate 2, can be as shown in Figure 3 there are gap among multiple OLED light tiles 3, can also be with
Mutually splicing.
Since OLED light tiles 3 are flexible light tiles, bottom plate 2 is not limited to plane, can be any bending form, increase
The diversity of the outer light of light emitting device.Bottom plate 2 is arranged according to concrete scene, for example, light emitting device 1 is automobile tail light, bottom plate 2 can be with
It is used to that the inner casing at taillight be arranged for vehicle, diffusing reflection layer 4 is covered on inner casing.Specifically, automobile tail light is with vehicle tail
The arc taillight of shape setting, the arc that the fitting vehicle tail shape for placing OLED light tiles 3 is arranged on inner casing are recessed
Diffusing reflection layer 4 is arranged as bottom plate 2 in slot, groove floor on it, and OLED light tiles 3 are attached on diffusing reflection layer 4, cover thereon
Lid transparent outer cover, due to the diffuse reflection effect of diffusing reflection layer 4, so that arc taillight corner, which is presented, uniformly goes out light, and in vehicle
Multiple angles viewing tail-light can be presented higher brightness, increase tail-light indicative function.Bottom plate 2 is also possible to independent bottom
Plate is fixed on vehicle inner casing or shell by modes such as clampings, easy to disassemble and replacement.Independent bottom plate 2 can be rigidity
Or flexible material, it can select as the case may be.
A kind of OLED light emitting device and tail-light that the embodiment of the present invention proposes, main purpose are unrestrained by being arranged on bottom plate
Reflecting layer emits beam to OLED light tiles and is uniformly broken up back reflection, realizes and improves light extraction efficiency, and it is bright to improve big visual angle
Degree.And in the prior art, OLED is simply only layed in default stationary plane, since the characteristic of OLED is that oneself shines, and light
Line is to all the winds propagated simultaneously, causes light emitting device light uneven, and light utilization is low.Compared with prior art, originally
OLED light emitting device and tail-light in application documents, by the way that diffusing reflection layer is arranged on bottom plate, by OLED light tiles to bottom plate
The light that direction issues carries out diffusing reflection, increases the uniformity of reflection light, increases the range for injecting light in air, protects simultaneously
Reflection efficiency is demonstrate,proved, increases light emission rate, and then improve big visual angle brightness.
In addition, tradition OLED be improve luminous efficiency, anode frequently with reflecting electrode with high reflectivity, however, with
The metal material for making anode can not usually get both between high reflectance and high work function, replace reflection electricity using diffusing reflection layer 4
Pole reduces anode and forms difficulty so that anode has higher work-functions, increases OLED luminescent properties, and diffusing reflection layer 4 forms and holds
Easily, reduce 1 manufacture difficulty of light emitting device.
Diffusing reflection layer 4 can there are many specific implementation form, for example, when diffusing reflection layer 4 and bottom plate 2 are separate structure,
As shown in figure 4, diffusing reflection layer 4 is the diffusive reflective plate with multiple protrusion particles 41, multiple protrusion particles 41 are located at diffusive reflective plate
The first side, the first side of diffusive reflective plate is arranged relative to OLED light tiles 3.
Wherein, the particle 41 of protrusion can be various shapes, optionally, multiple protrusion particles 41 be semicircle, zigzag,
Triangle or circle etc., multiple protrusion particles 41 are fixed in substrate 42, can regular distribution, can also be randomly distributed.In Fig. 4
For protrusion particle 41 is semicircle, during the light that OLED light tiles 3 issue is propagated, projected to 2 side of bottom plate
Light touches semicircular protrusion particle 41 first, and light is subject to carry out with the normal of semicircle at 41 contact point of protrusion particle
Reflection, since the direction position that light is located at semicircle normal is different, and then it is original with former incident direction phase to change light
Anti- reflection direction makes light to multiple directions non-uniform reflection.Meanwhile bottom plate is greater than by the reflectivity of multiple protrusion particles 41
2 reflectivity, enables light to be greatly reflected back in air.It is logical with bottom plate 2 when diffusing reflection layer 4 is diffusive reflective plate
Optics glue sticking is crossed, optical cement has high reflectance, such as 85%, the light for penetrating diffusive reflective plate on a small quantity reflected, into one
Step increases the utilization rate of light.
In addition, diffusing reflection layer 4 can be a variety of specific materials, using a variety of processing technologys, for example, diffusing reflection layer 4 is bottom
The frosted metal tin thin film pasted on plate 2, or the high reflectance nanometer diffusing reflection coating etc. to be sprayed on bottom plate 2.Using spray
Painting mode, allows diffusing reflection layer 4 to fit in 2 surface of bottom plate completely, and diffusing reflection layer 4 is not limited by 2 shape of bottom plate, sprayed simultaneously
Painting mode can guarantee that diffusing reflection layer 4 will not be blocked up, and different location thin and thick is uniform.
Except the mode of additional diffusing reflection layer 4 on a base plate 2, diffusing reflection layer 4 is also possible to be integrally formed with bottom plate 2, such as bottom
Plate 2 is metal material, directly can process rough surface in 2 surface of bottom plate, specifically, if bottom plate 2 is vehicle inner casing, it can be in vehicle
Diffusing reflection face, diffusing reflection layer 4 and bottom plate 2 one directly are processed in the position that inner casing is used to be arranged light tiles 3 in shell process
Body structure reduces the risk that additional diffusing reflection layer 4 falls off, and the thickness for reducing light emitting device 1 caused by the increase of diffusing reflection layer 4 increases
Add, and processed in 2 production process of bottom plate, is avoided using around light emitting device 1 caused by the secondary operation modes such as spraying
Equipment is contaminated, and directly in 2 surface of bottom plate, processing rough surface is suitable for 2 position of bottom plate and fixes and the feelings of limited surface space
Condition.
OLED light tiles 3 and the connection type of diffusing reflection layer 4 be it is Nian Jie, optics glue sticking specifically can be used, such as Fig. 4 institute
Show, optical adhesive layer 5 is formed between OLED light tiles 3 and diffusing reflection layer 4, and 5 one side of optical adhesive layer plays connection OLED and shines
On the other hand the effect of piece 3 and diffusing reflection layer 4 provides smooth placed side for OLED light tiles 3, and due to 5 phase of optical adhesive layer
Than there is certain elasticity in bottom plate 2, it can play a protective role to OLED light tiles 3, prevent OLED light tiles 3 due to jolting
It is shattered.Wherein, the refractive index of optical cement is more than or equal to the refractive index of OLED light tiles 3, specifically, the refractive index of optical cement is reducible etc.
In 1.8.The refractive index of optical cement height can be to avoid total reflection phenomenon, so that OLED light tiles 3 can to the light that 2 side of bottom plate issues
It to be irradiated to diffusing reflection layer 4 through optical adhesive layer 5, and is reflected by diffusing reflection layer 4, light is avoided directly to be reflected by optical adhesive layer 5,
Guarantee that light projects effect.
For the light-out effect for being further ensured that light emitting device 1, bottom plate 2 can there are many forms, as shown in figure 5, with bottom plate 2
For independent bottom plate 2, bottom plate 2 includes opposite front 21 and the back side 22, and diffusing reflection layer 4 is arranged in front 21, for placing
OLED light tiles 3,3 edge of OLED light tiles are aligned with 2 edge of bottom plate, prolong 2 edge of bottom plate be provided with protrude from front 21 hang down
Directly block item 23 in bottom plate 2, block item 23 protrude from front 21 height it is identical with 3 thickness of OLED light tiles or greater than OLED
3 thickness of light tiles allows to block 23 side of item and blocks 3 side wall of OLED light tiles completely, blocks on item 23 relative to front 21
Be covered with diffusing reflection layer 4 on one side, allow 3 side wall of OLED light tiles issue light reflected by blocking item 23, on the one hand
Increase light utilization, projected so that light is more concentrated to assigned direction, on the other hand, is avoided under Special use scene,
Side light leakage generates light pollution to surrounding.When bottom plate 2 is a part such as vehicle inner casing, the settable item 23 that blocks surrounds fixation
Region, for OLED light tiles 3 to be arranged.
In addition, the shape of bottom plate 2 can be processed according to the concrete form of OLED light tiles 3, for example, working as light emitting device
When as tail-light, for the diversity for guaranteeing tail-light, multiple luminous points are set in mono- tail-light of Chang, each luminous point
Shape it is different or multiple luminous points are fitted to each other to form pattern so that tail-light is eye-catching gorgeous.Multiple luminous points can be used more
A light tiles are realized, in the design of tail-light, often wish that gap between different luminous points is dark enough and luminous point is bright, so that
Entire tail-light pattern is more clear.In order to achieve the above objectives, it can be realized by setting 2 shape of bottom plate, with hair as shown in Figure 3
For electro-optical device 1, OLED light tiles 3 include the sub- light tiles of multiple rectangular slat shapes, and each sub- light tiles are independent light tiles,
Multiple sub- light tiles are layed in respectively on diffusing reflection layer 4, and have gap between multiple sub- light tiles, each sub- light tiles conduct
One luminous point, to achieve the purpose that luminous point is bright and gap is dark, as shown in fig. 6, for the side view of light emitting device in Fig. 3,
It is provided with the protrusion 24 positioned at gap on a base plate 2, raised 24 sides are covered with diffusing reflection layer 4.Namely each height shines
Piece is embedded between adjacent protrusion 24, and the light that sub- light tiles side wall projects is reflected by the diffusing reflection layer 4 of raised 24 side walls covering,
Sub- light tiles light is projected to assigned direction, and the light interaction in raised 24 positions is reduced, so that between multiple luminous points
Dark-state is presented in gap, and since sub- light tiles light is concentrated, so that luminous point is more bright.Protrusion 24 can be further fabricated to
Slightly above sub- light tiles surface, so that more preferable to sub- light tiles light gather effect.
On the other hand, the embodiment of the invention also provides a kind of tail-light, which includes:
OLED light emitting device 1 as described in any one of the above embodiments.
A kind of tail-light that the embodiment of the present invention proposes, main purpose on bottom plate by being arranged diffusing reflection layer, to OLED
Light tiles emit beam and are uniformly broken up back reflection, realize and improve light extraction efficiency, and improve big visual angle brightness.And the prior art
In, OLED is simply only layed in default stationary plane, since the characteristic of OLED is that oneself shines, and light is simultaneously to four sides eight
Side propagates, and causes light emitting device light uneven, and light utilization is low.Compared with prior art, the vehicle in present specification
Taillight, by the way that diffusing reflection layer is arranged on bottom plate, the light that OLED light tiles are issued to bottom plate direction carries out diffusing reflection, increases
The uniformity of reflection light increases the range for injecting light in air, while guaranteeing reflection efficiency, increases light emission rate, Jin Erti
Tall and big visual angle brightness.
Compared to conventional light emitting diodes (light-emitting diode, LED) tail-light, since OLED light tiles are
Flexibility can not be limited realization one by turning and be attached, avoided LED tail-light that from can not being bonded with vehicle inner casing in corner and lead
The problem for causing occupied space big, and since OLED light tiles itself have the characteristics that frivolous, the great space for reducing tail-light
It occupies, mitigates car body weight.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow
Help software that the mode of required common hardware is added to realize, naturally it is also possible to which the former is more preferably by hardware, but in many cases
Embodiment.Based on this understanding, the portion that technical solution of the present invention substantially in other words contributes to the prior art
Dividing can be embodied in the form of software products, which stores in a readable storage medium, such as count
The floppy disk of calculation machine, hard disk or CD etc., including some instructions are used so that computer equipment (it can be personal computer,
Server or the network equipment etc.) execute method described in each embodiment of the present invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of OLED light emitting device characterized by comprising
Bottom plate and OLED light tiles are provided with diffusing reflection layer on the bottom plate, and the OLED light tiles are layed in the diffusing reflection
On layer, the diffusing reflection layer is used to the light of the bottom plate as described in the OLED light tiles directive carrying out diffusing reflection.
2. OLED light emitting device according to claim 1, which is characterized in that
The diffusing reflection layer is the diffusive reflective plate with multiple protrusion particles；
The multiple protrusion particle is located at the first side of the diffusive reflective plate, and the first side of the diffusive reflective plate is relative to described
The setting of OLED light tiles.
3. OLED light emitting device according to claim 1, which is characterized in that
The diffusing reflection layer and the bottom plate are integrally formed.
4. OLED light emitting device according to claim 1, which is characterized in that
The diffusing reflection layer is metal coating.
5. OLED light emitting device according to claim 1, which is characterized in that
The diffusing reflection layer reflectivity is more than or equal to 85 percent.
6. OLED light emitting device according to claim 1, which is characterized in that
The OLED light tiles are Nian Jie with the connection type of the diffusing reflection layer.
7. OLED light emitting device according to claim 6, which is characterized in that
By optics glue sticking, the refractive index of the optical cement is more than or equal to described for the OLED light tiles and the diffusing reflection layer
The refractive index of OLED light tiles.
8. OLED light emitting device according to claim 1, which is characterized in that
Prolong the item that blocks that the bottom plate edge is provided perpendicular to the bottom plate, it is described to block on item relative to the bottom plate side
It is covered with the diffusing reflection layer.
9. OLED light emitting device according to claim 1, which is characterized in that
The OLED light tiles include multiple sub- light tiles, and the multiple sub- light tiles are layed in respectively on the diffusing reflection layer,
And have gap between the multiple sub- light tiles, the protrusion positioned at the gap, the protrusion side wall are provided on the bottom plate
On be covered with the diffusing reflection layer.
10. a kind of tail-light characterized by comprising
Such as OLED light emitting device according to any one of claims 1 to 9.
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| CN201910235632.9A CN109973935A (en) | 2019-03-27 | 2019-03-27 | OLED light emitting device and tail-light |
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| CN203828362U (en) * | 2014-02-25 | 2014-09-17 | 郭旭城 | Portable reading lamp panel for students |
| CN204187347U (en) * | 2014-11-19 | 2015-03-04 | 安徽极源照明科技有限公司 | Direct-illumination type panel lamp |
| CN104701350A (en) * | 2015-03-03 | 2015-06-10 | 京东方科技集团股份有限公司 | Electrode and manufacturing method thereof, and array substrate and manufacturing method thereof |
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| CN206469122U (en) * | 2016-12-13 | 2017-09-05 | 上海巍立智能科技有限公司 | Floodlight and the lampshade for floodlight |
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