CN208750423U - OLED illumination module and OLED illuminator - Google Patents
OLED illumination module and OLED illuminator Download PDFInfo
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- CN208750423U CN208750423U CN201820864762.XU CN201820864762U CN208750423U CN 208750423 U CN208750423 U CN 208750423U CN 201820864762 U CN201820864762 U CN 201820864762U CN 208750423 U CN208750423 U CN 208750423U
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Abstract
A kind of high yield low-cost large-area flexibility OLED illumination module and OLED illuminator are disclosed, OLED lighting area is belonged to.The OLED illumination module includes multiple oled light plates, and wherein oled light plate includes substrate, OLED device, encapsulated layer, at least one positive contact, at least one cathode contacts and at least one light-emitting area；First flexible printed circuit board includes first surface and second surface, and is printed on the first circuit of first surface；At least one positive contact and at least one cathode contacts of wherein at least two oled light plate are electrically connected to the first circuit on the first surface of the first flexible printed circuit board, so that multiple oled light plates are externally electrically accessed；It is characterized in that the substrate of wherein at least two oled light plate is separated.OLED illumination module and OLED illuminator can realize high yield, low cost and large area flexible illumination.
Description
Technical field
The utility model relates to a kind of OLED (Organic Light-Emitting Device) light sources.More particularly, it relates to
And a kind of high yield low-cost large-area flexibility OLED illumination module, preparation method and the OLED comprising the illumination module shine
Bright lamp tool.
Background technique
OLED illumination is widely noticed in recent years due to efficient, cold light source and new model.The newest progress in terms of light extraction
Have been realized in the efficiency (K.Yamae, et al., SID Digest, 682 (2014)) that OLED illumination reaches 130lm/W.LG
The commercialized hard back light plate of Display can also reach efficiency (the LG Display:OLED light of 90lm/W at 3000K
panel user guide v3.0).This with efficiency 70-100lm/W LED it is comparable (https: //
www.energy.gov/eere/ssl/led-basics).The Luflex series illumination of LG Display is will be various sizes of
OLED is done on flexible substrates, and maximum has 300mm x 300mm.Using the displaying and product of this oled light plate in market
It is upper visible.However, OLED illumination and other illuminations, such as LED, fluorescent lamp compare still selling at exorbitant prices with incandescent lamp.Citing comes
It says, a LG OLED Sky desk lamp price $ 255.99, a Vela OLED wall lamp price $ 2,590, and its pendent lamp is higher
Up to $ 9,990.At the same time, a TaoTronics LED desk lamp only sells $ 27.99, even one piece of face Blackjack LED
Light source also only wants $ 359 (www.amazon.com).This seriously inhibits OLED to be commercialized process, is confined to high-end luxury
Product field.The Large area light source formed or flexible light source are assembled by multiple LED moreover, can see on the market, this is more
The difference for having further reduced both light sources increases the challenge that OLED enters general illumination.
General common recognition is the high cost source of OLED in organic material, especially emitting layer material, production cost and most
Important, low yield.It is to increase the size of motherboard, such every batch of production capacity to reduce an obvious method of production cost
It can be obtained by raising.Although the up-front investment of higher generation producing line is higher, discovery is calculated after 5 years, one can produce 6 English
The equipment of very little substrate and the cost of the single substrate of 5.5 generation lines production are almost without difference (Barry Young, Cost of
Ownership Model for OLED SSL).But there is no solve yield issues for this.Low yield is mainly derived from dust, it
Will cause the short circuit between anode and cathode so that damaging entire tabula rasa.It is influenced to reduce dust, someone has invented insertion
The way (8,836,223 B2 of US) of fuse, or organic thickness is increased by one series connection (tandem) structure of building
Degree.The way of fuse can be helpful, but has the limit-entire tabula rasa when having more than 1% pixel short circuit to be regarded as losing
Effect.Cascaded structure has blocking effect to the dust of some sizes really, but useless greater than 500 nanometers of dust to diameter.And it is soft
Property OLED illumination it is particularly sensitive to dust, even if because they have fallen on complete organic layer, can still penetrate film envelope
Layer is filled, device lifetime is shortened.Other work concentrate on further increasing device performance, including efficiency and service life, to reduce/lm,
And device is prepared on flexible substrates using roll-to-roll (roll-to-roll) technique of low cost.However, device performance
Promotion is still slow some relative to the reduction of LED cost, also, the efficiency of flexible light and service life are still a big problem.
Above all it can be stated that the invention is absorbed in general illumination application, with 9,954,389 B2 of US it is described based on display or
It is passive array (passive matrix) is to have essential distinction, each pixel has oneself in display or passive array
Driving circuit although pixel also lines up array format be all on one piece of substrate, and size is than list described herein
The small several orders of magnitude of block substrate.Although also having in 9,954,389 B2 of US using flexible printed circuit board and driving OLED, by
Then application is shown, circuit is increasingly complex, and its OLED is prepared on same substrate.
Instantly the OLED luminaire trend of business is all to try to do the oled light plate in highest luminance region on one piece of substrate,
Then lamps and lanterns are formed with each of these tabula rasas or multiple arrangements.Some lamps and lanterns using business oled light plate, which have, to be showed.
Herein, all oled light plates are all whether great or small to be provided by LG Chem with modular form." mould group " refers to an electricity
Sub- device only has one group of external circuit driving device.The OLED mould group of these LG Chem have a pair of of electric wire extend to tabula rasa with
Outside and fixed with a socket to use.Power drives can also provide, as pulse width modulates (pulse width
Modulation) and amplitude modulates (amplitude modulation).Each such mould group is substantially exactly a collocation
The OLED tabula rasa of external cable.Such a mould group or one piece of individual tabula rasa, due to excessive light-emitting area, still not
Low yield, high-cost problem are born avoidablely.
The progress in micro display field has been able to for LED to be arranged on substrate (US 2005/ in the form of an array in the recent period
0207156A1).However, these LED are arranged closely together (see Fig. 1 a) in order to reach high-resolution.In addition these
LED is very small, is not suitable for being applied to large area general illumination.Some ideas are to be alternatively arranged multiple OLED and LED
(9,887,175 B2 of US) does illumination and applies (see Fig. 1 b).Although having spacing between the OLED arranged in this way, this be in order to
LED, which is stayed, puts position to provide point light source effect.In addition, the OLED in 9,887,175 B2 of US needs two pieces of substrates and adhesive agent real
Now encapsulation (i.e. traditional cover board encapsulation), can reduce filling rate in this way.It in our invention, does not need using LED, we are also
A proprietary strategy can be introduced to maximize filling rate and realize effectively encapsulation.A kind of ceramic tile type planar light source is in US 2005/
It is described in 0248935 A1, its object is to by the electrode of design contact in advance that adjacent oled light plate is mutual in respective boundary
It is joined to form compact oled light plate array (see Fig. 1 c).When doing so, each tabula rasa has at least two same
To contact electrode, and the connection between plate and plate is specific.In our invention, contact electrode not want by fixation
It asks, and adjacent tabula rasa is not required to have circuit connection.Especially, the electrode in these oled light plates is each other by welding,
Bonding, the connection such as special complementary outline border, rather than one piece of shared flexible printed circuit board as being used in our work.Separately
Outside, in 2005/0248935 A1 of US, substrate and FPC are not existed simultaneously.Even if FPC is used as the material of substrate,
It also can each FPC and an OLED coincidence in the presence of majority FPC.And in our invention, substrate and FPC are deposited simultaneously
And play respectively different effect, and a FPC is overlapped with multiple OLED.
Finally, a kind of OLED lighting system is described in 9,337,441 B2 of US, the shared cover of plurality of OLED
Plate, this cover plate provide external drive (see Fig. 1 d).Here core concept is that motherboard is cut into the compact arranged OLED collection of multiple groups
It closes, and these OLED set under the same cover plate all share the same substrate.And in our invention, each OLED
Tabula rasa is that the substrate down to them cut is mutually mutually separated.The benefit of this way is can to filter out bad tabula rasa and only group
It installs, so that the yield of mould group greatly improves, and this is US 9, what the structure in 337,441 B2 cannot achieve, because of institute
Some tabula rasas all use the same substrate.In addition, in our invention, these tabula rasas be all specially be alternatively arranged so that
There is a fixed gap between substrate and substrate.Accordingly even when single tabula rasa may be to prepare on hardboard, large area still may be implemented
Flexible light ceramic tile (large-area flexible tiles).Claimed structure is in 9,337,441 B2 of US to reality
Existing large area flexible illumination must just use Grazing condition substrate, and the yield of device in this way can have a greatly reduced quality.
Summary of the invention
The utility model is intended to provide a kind of OLED illumination module, preparation method and the OLED comprising the illumination module
Illuminator is at least partly above-mentioned to solve the problems, such as.The OLED illumination module of the utility model, preparation method and includes this
The OLED illuminator of illumination module can realize high yield, low cost and large area flexible.
According to one embodiment of present invention, a kind of OLED illumination module is disclosed, includes:
Multiple oled light plates, wherein the oled light plate includes substrate, OLED device, encapsulated layer, at least one anode connect
Touching, at least one cathode contacts and at least one light-emitting area；
First flexible printed circuit board includes first surface and second surface, and is printed on the of the first surface
One circuit；
At least one described positive contact and at least one described cathode contacts of oled light plate described in wherein at least two
First circuit being electrically connected on the first surface of first flexible printed circuit board, so that multiple OLED
Tabula rasa is externally electrically accessed；
The substrate of oled light plate described in wherein at least two is separated.
According to another embodiment of the present invention, a kind of method for preparing OLED illumination module is also disclosed, includes:
A) active region area of an oled light plate is determined；
Design tabula rasa layout；
B) design tabula rasa distribution；
Corresponding circuit is designed for tabula rasa distribution；
The circuit of design is printed on the first surface of flexible printed circuit board；
C) multiple oled light plates are manufactured at least one motherboard；
Encapsulate the multiple oled light plate；
At least one described motherboard is cut into individual oled light plate；
D) and by at least two individual oled light plates it is electrically coupled to the first table of the flexible printed circuit board
On face, wherein the oled light plate can be driven in outside；
There is the space greater than 0.1mm between the substrate of wherein at least two oled light plate；
Wherein step b can be implemented before, after or at the same time in step c.
One OLED illuminator includes the OLED illumination module described at least one.
Novel OLED illumination module disclosed by the utility model, due to being separated from one another it includes the substrate of oled light plate
, therefore, it is intended that oled light plate therein may be from different motherboards, such as utilize difference prepared by different materials
Motherboard reduces costs.Meanwhile relative to the unit including multiple oled light plates is cut into, same motherboard can be cut into more
The unit of more single oled light plates.The unit filtered out from the more oled light plates obtained and assembling, can make OLED
The yield of illumination module greatly improves.In addition, these oled light plates in OLED illumination module, make after being alternatively arranged in base
There is a fixed gap between plate and substrate, can realize that large area flexible illuminates with tabula rasa of the preparation on hardboard in this way.This is opposite
It realizes that large area flexible illuminates in Grazing condition substrate must be used, improves and yield and reduce costs.
Detailed description of the invention
Fig. 1 a is the schematic diagram for the miniscope that closelypacked LED array is formed.
Fig. 1 b is the schematic diagram of the illuminating device comprising multiple OLED and LED.
Fig. 1 c is included in the signal of the ceramic tile type plate lighting system for the lighting unit being electrically interconnected to each other on tabula rasa edge
Figure.
Fig. 1 d is the schematic diagram of the OLED lighting system comprising multiple OLED cells, and plurality of OLED cell shares one
Lid, wherein electrical contact is connected to the lid.
Fig. 2 is the schematic diagram for maximizing the contact design example of filling rate.
Fig. 3 a is the schematic diagram of exemplary a part for circuit layout on FPC.
Fig. 3 b is the schematic diagram of the corresponding scheme of OLED light source, and wherein oled light plate is electrical connection in parallel.
Fig. 4 a is the schematic diagram of exemplary a part for circuit layout on FPC.
Fig. 4 b is the schematic diagram of the corresponding scheme of OLED light source, and wherein oled light plate is to be electrically connected in series.
Fig. 5 a- Fig. 5 e is the schematic diagram with the OLED illumination ceramic tile of multiple bottom-emission oled light plates, and wherein Fig. 5 a exists
There is no thin-film encapsulation layer on FPC plate, there is no light-extraction layer in Fig. 5 b, Fig. 5 c has a light-extraction layer, and Fig. 5 d has individual
Light-extraction layer, Fig. 5 e have support membrane.
Fig. 6 a- Fig. 6 b is the schematic diagram with the OLED illumination ceramic tile of top light emitting oled light plate, and wherein Fig. 6 a does not have light
Extract layer, Fig. 6 b have light-extraction layer.
Fig. 7 a- Fig. 7 c is the lighting source schematic diagram with two sides oled light plate, wherein using with alignment in Fig. 7 a
Two bottom emission OLED of OLED tabula rasa illuminate ceramic tile, are sent out in Fig. 7 b using two bottoms with alternate oled light plate
Light OLED illuminates ceramic tile, and Fig. 7 c is using two-sided FPC plate.
Fig. 8 a is the floor map of a part of OLED illumination ceramic tile.
Fig. 8 b is the correspondence schematic cross-section in Fig. 8 a along line A-A', without light-extraction layer.
Fig. 8 c is the correspondence schematic cross-section in Fig. 8 a along line A-A', wherein having light-extraction layer.
Fig. 9 a and Fig. 9 b are the schematic diagrames of a part of OLED illumination ceramic tile, and wherein Fig. 9 a is top light emitting oled light board group dress
Onto netted FPC plate, Fig. 9 b is that transparent OLED device is assembled on netted FPC plate with similarly configuring.
Figure 10 is the schematic diagram that the OLED illumination ceramic tile of sensor is equipped between illumination tabula rasa.
Figure 11 be include multiple rigid oled light plates large area flexible OLED ceramic tile schematic diagram.
Figure 12 is the preparation method flow chart of high yield low cost OLED ceramic tile mould group.
Specific embodiment
As used herein, " top " means farthest from substrate, and " bottom " mean it is nearest from substrate.It is described by first layer
It is " placement " in the case where second layer "upper", first layer is arranged to away from substrate farther out.Unless regulation first layer "AND" second
Layer " contact " otherwise may exist other layers between first and second layer.For example, even if existing between cathode and anode each
Cathode, can be still described as " being placed in " anode "upper" by kind organic layer.
As used herein, term " oled light plate " includes one piece of substrate, OLED device, one layer of encapsulated layer, and at least one
A positive contact and a cathode contacts extend to outside encapsulated layer and are used to drive.The OLED device include one layer of anode layer, one
Layer cathode layer, one or more layers organic light emission are placed between anode layer and cathode layer.Substrate is not included in the OLED device
And encapsulated layer, these are present in oled light plate.
As used herein, term " mould group " refers to the electronic device of only a set of external electric driver.
As used herein, term " encapsulated layer " can be thin-film package of the thickness less than 100 microns comprising by one layer or
Plural layers are applied directly onto device surface, or are also possible to adhere to the cover plate (cover glass) on substrate.
As used herein, term " active region area (active area) " refers to luminous zone when OLED device is powered
Domain.Active region area can be regular figure and be also possible to irregular figure.
As used herein, term " separation " refers to being not connected to not form the object of uniformity on two physical objects.
As used herein, term " filling rate " refers to the area ratio of light emitting region and entire tabula rasa.
As used herein, term " flexible print circuit " (FPC) refers to being coated on any flexible base board following any
Or their combination, including but not limited to: conductor wire, resistance, capacitor, inductance, transistor, MEMS (MEMS) etc..It is soft
The substrate of property printed circuit can be plastics, and film glass is coated with the metallic film of insulating layer, fabric, leather, paper, etc..
One flexible printed circuit board general thickness is less than 1mm, and more preferably thickness is less than 0.7mm.
As used herein, term " light-extraction layer " can refer to optical diffusion film or other be used for light extraction micro-structure,
It can be the film layer with light extraction effect.Light-extraction layer can be located at the substrate surface of oled light plate, can also be at other
Suitable position, such as between substrate and anode or between organic layer and Yin/Yang pole, between cathode and encapsulated layer, encapsulation
Layer surface, etc..
As used herein, the OLED illumination module includes multiple oled light plates (panels), and minimum may include 2
Oled light plate, at most self-setting according to the usage requirement.
According to one embodiment of present invention, a kind of OLED illumination module is disclosed, includes:
Multiple oled light plates, wherein the oled light plate includes substrate, OLED device, encapsulated layer, at least one anode connect
Touching, at least one cathode contacts；
First flexible printed circuit board includes first surface and second surface, and is printed on the of the first surface
One circuit；
At least one described positive contact and at least one described cathode contacts of oled light plate described in wherein at least two
First circuit being electrically connected on the first surface of first flexible printed circuit board, so that multiple OLED
Tabula rasa is externally electrically accessed；
The substrate of oled light plate described in wherein at least two is separated.
According to one embodiment of present invention, the oled light plate has at least one light-emitting area.
According to one embodiment of present invention, light-extraction layer is further included in OLED illumination module.
According to one embodiment of present invention, light-extraction layer described in OLED illumination module is diffusion barrier, and attach to
At least one light-emitting area of a few oled light plate.
According to one embodiment of present invention, light-extraction layer described in OLED illumination module extends to described at least one
Except the light-emitting area of OLED tabula rasa.
According to one embodiment of present invention, light-extraction layer described in OLED illumination module is attached to the described first flexible print
At least part of printed circuit board.
According to one embodiment of present invention, encapsulated layer described in OLED illumination module is thin-film encapsulation layer.
According to one embodiment of present invention, encapsulated layer described in OLED illumination module is the lid for being adhered to the substrate
Piece.
According to one embodiment of present invention, the substrate of at least one oled light plate is flexible in OLED illumination module
's.
According to one embodiment of present invention, one or more sensors are further included in OLED illumination module, wherein
At least one described sensor is placed between two oled light plates.
According to one embodiment of present invention, sensor described in OLED illumination module includes one of the following or a variety of
Sensor: motion sensor, imaging sensor, sound transducer, temperature sensor, gas sensor, humidity sensor or red
Outer sensor.
According to one embodiment of present invention, wherein the multiple oled light plate also includes that transmitting has the first peak wavelength
Light the first oled light plate, and transmitting have the second peak wavelength light the second oled light plate, wherein the first peak value
Wavelength and second peak wavelength differ at least 10nm.
According to one embodiment of present invention, wherein the multiple oled light plate further includes third oled light plate,
In the first oled light plate transmitting have the first peak wavelength of 400-500nm light, the second oled light plate transmitting have 500-580nm
The light of second peak wavelength, the transmitting of third oled light plate have the light of 580-700nm third peak wavelength.
According to one embodiment of present invention, OLED illumination module further includes support membrane, wherein the support membrane is attached
It is connected at least part of the side opposite with light-emitting surface of first flexible printed circuit board.
According to one embodiment of present invention, wherein first flexible printed circuit board only a part with oled light plate
Overlapping.
According to one embodiment of present invention, wherein first flexible printed circuit board and at least two oled light plate weights
It is folded.
According to one embodiment of present invention, wherein first flexible printed circuit board is electrically connected to by conducting resinl
On oled light plate.
According to one embodiment of present invention, OLED illumination module further includes and is printed on first flexible printing
Second circuit on the second surface of circuit board, wherein at least one oled light plate are electrically connected to the first surface, and extremely
Another few oled light plate is electrically connected to the second surface of first flexible printed circuit board.
According to one embodiment of present invention, wherein at least one oled light plate independently drives on circuit.
According to one embodiment of present invention, wherein the multiple oled light plate has identical or different shape.
According to one embodiment of present invention, wherein at least two oled light plate is to cut to come from two motherboards.
According to one embodiment of present invention, wherein the first surface or second surface of first flexible printed circuit board
At least one of be pre-coated with thin-film encapsulation layer.
According to one embodiment of present invention, wherein the multiple oled light plate is unevenly distributed over first flexibility
On printed circuit board.
According to one embodiment of present invention, OLED illumination module further includes the second flexible printed circuit board, wherein
Multiple oled light plates are electrically connected to second flexible printed circuit board, wherein first flexible printed circuit board and second soft
Property printed circuit board be connected so that at least one oled light plate on first flexible printed circuit board is along with described the
The opposite direction of at least one oled light plate on two flexible printed circuit boards emits light.
According to one embodiment of present invention, wherein first flexible printed circuit board is less than 1mm thickness.
According to one embodiment of present invention, wherein first flexible printed circuit board further includes a flexible base
Plate, the flexible base board are selected from the group being made up of: plastics, film glass are coated with the metallic film of insulating layer, fabric, skin
Leather, paper, and combinations thereof.
According to one embodiment of present invention, have between the substrate of wherein at least two oled light plate greater than 0.1mm's
Space.
According to another embodiment of the invention, a kind of method for preparing OLED illumination module is disclosed, includes following step
It is rapid:
A) active region area of an oled light plate is determined；
Design tabula rasa layout；
B) design tabula rasa distribution；
Corresponding circuit is designed for tabula rasa distribution；
The circuit of design is printed on the first surface of the first flexible printed circuit board；
C) multiple oled light plates are manufactured at least one motherboard；
Encapsulate the multiple oled light plate；
At least one described motherboard is cut into individual oled light plate；
D) and by at least two individual oled light plates it is electrically coupled to the first table of the flexible printed circuit board
On face, wherein the oled light plate can be driven in outside；
There is the space greater than 0.1mm between the substrate of wherein at least two oled light plate；
Wherein step b can be implemented before, after or at the same time in step c.
According to one embodiment of present invention, wherein determining the active region area of oled light plate by formula A=929M-2/3,
The wherein active region area A of oled light plate, unit cm2, M is the average dust number that every cubic feet of diameter is greater than X microns,
Middle X is selected between 0.1-0.5.
According to one embodiment of present invention, setting light-extraction layer is further included.
According to one embodiment of present invention, it wherein the light-extraction layer is diffusion barrier, and attaches to described at least one
At least one light-emitting area of OLED tabula rasa.
According to one embodiment of present invention, wherein the light-extraction layer extends to the hair of at least one oled light plate
Except optical surface.
According to one embodiment of present invention, wherein the light-extraction layer is attached to first flexible printed circuit board
At least partially.
According to one embodiment of present invention, wherein the multiple oled light plate is thin-film package.
According to one embodiment of present invention, the substrate of wherein at least one oled light plate is flexible.
It according to one embodiment of present invention, further include that one or more sensors are assembled in the flexible print circuit
Between two oled light plates on plate.
According to one embodiment of present invention, wherein the sensor includes one of the following or multiple: motion-sensing
Device, imaging sensor, sound transducer, temperature sensor, gas sensor, humidity sensor or infrared sensor.
According to one embodiment of present invention, wherein the multiple oled light plate also includes that transmitting has the first peak wavelength
Light the first oled light plate, and transmitting have the second peak wavelength light the second oled light plate, wherein the first peak value
Wavelength and second peak wavelength differ at least 10nm.
According to one embodiment of present invention, wherein the multiple oled light plate further includes third oled light plate,
In the first oled light plate transmitting have the first peak wavelength of 400-500nm light, the second oled light plate transmitting have 500-580nm
The light of second peak wavelength, the transmitting of third oled light plate have the light of 580-700nm third peak wavelength.
According to one embodiment of present invention, support membrane is further included, wherein the support membrane attaches to described first
At least part of the side of the not connected oled light plate of flexible printed circuit board.
According to one embodiment of present invention, wherein first flexible printed circuit board only a part with oled light plate
Overlapping.
According to one embodiment of present invention, wherein first flexible printed circuit board is electrically connected to by conducting resinl
On oled light plate.
According to one embodiment of present invention, wherein at least one oled light plate independently drives on circuit.
According to one embodiment of present invention, wherein first flexible printed circuit board is less than 1mm thickness.
According to one embodiment of present invention, wherein the multiple oled light plate is manufactured from two or more motherboards
's.
According to one embodiment of present invention, wherein the multiple oled light plate is being integrated into the first flexible print circuit
By screening before plate.
According to one embodiment of present invention, wherein first flexible printed circuit board further includes a flexible base
Plate, the flexible base board are selected from the group being made up of: plastics, film glass are coated with the metallic film of insulating layer, fabric, skin
Leather, paper, and combinations thereof.
Still another embodiment in accordance with the present invention discloses a kind of OLED illuminator, as described above comprising at least one
OLED illumination module.
Although reducing the method that active region area is the raising yield being naturally contemplated that, seldom have been reported that how to determine
Fixed maximum active region area.Herein, we describe first rules of thumb for determining the suitable active region area of OLED.Usually
OLED illumination is prepared in ultra-clean chamber, anode layer and country fair dike layer (usually a kind of macromolecule polyalcohol, such as polyimides
(polyimide), the edge of ITO is covered to prevent ITO burr from penetrating organic layer) it is graphically prepared between hundred-grade super-clean, it is organic
It layer, cathode layer and is encapsulated in thousand grades of ultra-clean chambers and graphically prepares.Sometimes, anode layer can also be by mask in sputtering chamber system
Standby, in this case, all processing steps all can complete (US 8,564,192B2) in thousand grades of clean rooms.It is more excellent in volume production factory
Way be that all techniques are all completed between hundred-grade super-clean.It is possible in the dust (if any) that ITO and country fair dike layer introduce
Figure can be destroyed, but can usually be removed and have little effect on the yield of resulting devices.On the contrary, process is deposited in organic layer
The dust of introducing is most critical, because they will cause entire shorted devices failure.The standard of hundred grades of clean rooms is every cubic feet per
Dust of the ruler interior diameter greater than 0.5 micron will be less than 100.This means that, it is assumed that dust is distributed in space uniform, for each
They are less than 21.54 to the dust of diameter greater than 0.5 micron on every square feet of unit area, i.e. 0.023/cm2.This
Sample is theoretically, interior in hundred-grade super-clean, every 43cm2There will be no the dust that diameter is greater than 0.5 micron below.This is theoretical
On maximum active area threshold area without diameter greater than 0.5 micron of dust.The organic layer of the OLED of one cascaded structure can be with
It is easily reached 0.5 micron of thickness.Then, if active region area is controlled under no dust threshold value, yield can be more than 90% and gather around
There is 100% theoretical value.Similar, we can be obtained with reasoning in thousand grades of ultra-clean chambers, and (it is micro- that every cubic feet of diameter is greater than 0.5
Rice but dust less than 5 microns are less than 1000, and dust of the diameter greater than 5 microns is less than 250), it is greater than without diameter
0.5 micron of maximum area is 8cm2.For the OLED device slim for one, usual organic layer thickness is received in 100-300
Meter Jian, therefore, more preferably active region area should be the half of threshold area to guarantee high yield.Another way is to test
Chamber region carries out finer dust measurement to determine needed for certain particular device structure without particle threshold area.For example,
The dust that 0.3 micron can be greater than to diameter measures and calculates threshold area with this.
One general formula can state as follows: if dust diameter > X μm of measured value is less than every cubic feet M, wherein
X (more optimized between 0.3-0.5) between 0.1-0.5, then the active area threshold area of one high yield oled light plate
A [cm2] may be calculated:
A=929M-2/3[cm2] formula 1
It is also beneficial to thin-film package (TFE) device so to calculate active area threshold area, can prevent dust from falling in TFE layers
In and shorten device lifetime.
Next, independent tabula rasa domain can be designed on the basis of light-emitting area is no more than threshold area, then
The array on motherboard can be designed.When tabula rasa size reduction, it is important that being still to ensure good filling rate, i.e.,
The ratio of light-emitting area and entire tabula rasa area.If not, the monolithic tabula rasa output quantity on every piece of motherboard can decline so that
Cost increase.Nevertheless, a benefit of production small area tabula rasa is to avoid using bus, bus is generally embedded in ITO
The light intensity uniformity (US 8,927,308B2) of large area tabula rasa is improved between organic layer.Due to reducing light-emitting area,
Light intensity uniformity has improvement, and will increase manufacturing cost, introduce it is possible short circuit and not the bus of light-emitting area no longer
It needs.In addition, also due to the raising of the diminution uniformity of area, contact electrode can be designed to less quantity to increase
Add filling rate.In a suitable design, a quadrangle tabula rasa can have most 3 sides not contact electrode and still keep good
Good uniformity.The example of some contact electrode designs, but these are not limited to, it is shown in Fig. 2, wherein "+" number represents
Positive contact, "-" number represent cathode contacts.It hereafter will be apparent from, what is bonded using flexible printed circuit board (FPC)
When, the area for contacting electrode can greatly reduce to further increase filling rate.Specific tabula rasa design rule will not
It is described herein, but those skilled in the art has the knowledge.Filling can further be improved by improving encapsulation technology
Rate.Traditional cover plate encapsulation scheme can occupied space, but boundless form can be realized by thin-film package (US 8,933,
468B2).To further reduce the cost, thin-film package can with printing or spraying method be coated on substrate (US 9,343,
678B2).The encapsulated layer of this printing or spraying can also be used in country fair dike layer, and theoretically high-cost lithography step is just in this way
It does not need.Other scheme is, with inorganic material, including but not limited to, silica and silicon nitride, by mask or
The method of photoetching prepares country fair dike layer after comprehensive PECVD plated film.Doing country fair dike with these inorganic material substitution organic material can mention
High device lifetime.
Above-mentioned tabula rasa can combine in the form of an array on large area motherboard.Array pattern can comprehensively consider tabula rasa figure,
Tabula rasa contacts the ability of electrode position and production equipment.This array combination knowledge is had by the professional person of this field.
Notice that the combination of this array format is a part in production stage, each piece of tabula rasa all can be by from motherboard after the completion of production
On cut down.It will not described to be that the tabula rasa distribution figure that final mould group carries out mutually is obscured with following.Theoretically
For, each piece of tabula rasa can also be manufactured independently, that is, substrate of each piece of tabula rasa itself is motherboard.Each piece of separate substrates
It itself can be any shape, it is regular or irregular, as long as peak use rate can be reached when they arrange on motherboard.
We describe the novel contact electrode applying method of one kind simultaneously herein to reduce non-luminescent area.One
Circuit has been pre-printed on flexible printed circuit board (FPC) can be used to be bonded tabula rasa.Printed electronic is a mature field,
It can be with low cost in print upon plastic materials copper, silver, TCO or organic conductive material.Progress in recent years shows more complicated
Component and component can also by printing obtain, such as thin film transistor (TFT) (TFT) and by these TFT build Lai electricity
Road.The width of these conductive lines can substantially reduce oled light plate contact electrode area from tens to several hundred microns etc..
FPC is generally also very thin, generally in 12 to 125 microns.Some FPC are transparent.Driving circuit in addition to printing OLED,
Other circuits, such as but be not limited to, antenna, amplifier, transmitter, etc. can also be printed on flexible board.One electricity
A part of the circuit design example of connection and driving oled light plate has been drawn in Fig. 3 a, and corresponding circuits figure is in Fig. 3 b.It is multiple
Oled light plate 501 is integrated on FPC plate 510.There is a positive contact in each 501 one end of oled light plate, opposite another
There are a cathode contacts at end.The positive contact of oled light plate 501 is electrically connected with electric wire 502 is obtained, cathode contacts and acquisition electricity
Line 503 is electrically connected.In this combination, oled light plate 501 is connected in parallel on circuit.One of another circuit design example
Divide and be drawn in Fig. 4 a, corresponding circuits figure is in Fig. 4 b, and oled light plate 601 is connected in series on FPC plate 610 here.It obtains
Electric wire 602 connects the anode in first oled light plate, obtains electric wire 603 and connects the cathode in the last one oled light plate.This
Two examples are most suitable for the tabula rasa that respectively there is an anisotropic contact electrode on both sides.Electrode design is contacted different from this nevertheless, having
Tabula rasa the domain also can be used, alternatively, other circuit design also can be used.Since FPC plate can print fine dimension,
It can also realize the independence driving to single tabula rasa.So, each oled light plate can be under different operating points
Driving, to reach high uniformity perhaps intentional heterogeneity or longer service life.The contact electrode of oled light plate can
By being fitted on FPC plate after photographic film height alignment.As for being multiple tabula rasa design connection circuits on FPC, in electricity
Sub- engineering field is very basic technical ability, and person skilled in art has the knowledge.FPC plate can obtain electricity from outside
Source in the following manner but is not limited to, power supply line, power outlet, internal battery, power-supply controller of electric, wireless charging and other.
Each FPC can be bonded multiple oled light plates and reserve gap between tabula rasa.Fig. 5 a is demonstrated by an OLED
Ceramic tile type mould group 700, the oled light plate 710 for above having multiple bottoms luminous have been integrated on FPC plate 707.Oled light plate 710 wraps
Containing a substrate 701, an OLED device 702, at least a pair of electrodes 704 include that at least one anode and a cathode connect
Touching, an encapsulated layer 703.Encapsulated layer 703 can be the cover plate being bonded on substrate with UV solidification glue.Encapsulated layer 703 is more prone to
Then it is lower than 100 microns of thick thin-film encapsulation layers for one layer.Oled light plate 710 is fitted in advance by a bonding structure 705
It has printed on the FPC plate 707 of circuit.Oled light plate can be bonded on printing plate by heat or pressure.Bonding structure 705 can
With but be not limited to be, mixed with the conducting resinl of metallic particles, wire bonding (a wire bonding), welding or any other
Field technical staff formal similarity.Fitting process can be with, but is not limited to, pressure fitting, thermal-adhering, UV fitting or
Above several mixing.In order to be bonded muti-piece oled light plate simultaneously, the scheme favored is to provide one piece of platform to set FPC plate
Thereon, oled light plate is picked up using mechanical arm and place it in the position needed on FPC plate.Bonding structure can put
It is prepared before oled light plate.For example, if it is desired that with conductive epoxy resin glue laminating, one can be integrated in same system
Epoxy resin glue painting is placed in by a adhesive dispensing device to be needed to locate.If the conductive epoxy resin glue needs UV to solidify, a UV lamp source
Joint place will be radiated at after on the glue that oled light plate is placed on coating.In another pressure fitting scheme, can with
The corresponding jig of epoxy resin glue profile is pressed on the oled light plate being placed on glue.Heating device can also be integrated into
Heating fitting is provided in system.Platform itself can be a heating plate, or can be corresponding to epoxy resin glue profile
Place do wire casing arrangement thermal wire.Dispensing, mechanical arm, UV illumination, pressurization jig and/or heating device can collect
In Cheng Yi robot system.In order to improve precision, alignment cameras also can be used.Pay attention to the foregoing is merely fitting case,
The professional in the field has the knowledge of various fitting schemes.In addition it can be plated between FPC plate 707 and oled light plate 710
Upper thin-film encapsulation layer 706, as shown in Figure 5 b.In this embodiment, light is projected from substrate side, in contrast to encapsulated layer side,
This is considered bottom luminescent device.In fig. 5 c, light-extraction layer 708 can be mentioned on plastic packaging to oled light plate 710 with enhancing light
Take effect.Light-extraction layer 708 can be the optical diffusion film of an included viscose glue.Light-extraction layer 708 is also possible to be plated in substrate hair
The film of smooth surface.Additional viscose glue 709 can be filled between light-extraction layer 708 and FPC plate 707, but be not required.Light
Extract layer 708 may be every block of oled light plate and separate, as fig 5d.If FPC plate is very thin, one layer of support membrane
709 can be on FPC plate that plastic packaging shines that side to no OLED, as depicted in fig. 5e.Support membrane 709 can carry viscose glue.
In other embodiments, top illuminating device can be integrated into a ceramic tile type light source.Fig. 6 a depicts a porcelain
Brick OLED mould group 800 includes the luminous oled light plate 810 in multiple tops.In this structure, light is from oled light plate 810
Package-side project.Each oled light plate 810 has been fitted on FPC plate 801 by bonding structure 802.Similar, such as Fig. 6 b
Shown, light-extraction layer 803, which can add, to be attached on oled light plate 810, because light-emitting surface is in substrate opposite now.Additional adhesive glue
804 can be filled between FPC plate 801 and light-extraction layer 803.In some embodiments, the luminous OLED ceramic tile type in two bottoms
Mould group back-to-back can form the mould group of double-side by plastic packaging together, as shown in Figure 7a.In Fig. 7 a, first bottom shines
Ceramic tile type OLED mould group 911 can the joint adhesive 913 on the FPC plate by being coated on two luminous tiles be bonded to second
It opens in the luminous ceramic tile type OLED mould group 912 in bottom, to form the mould group 910 of double-side.OLED in ceramic tile type mould group 911
Tabula rasa 901 and the oled light plate 902 in ceramic tile type mould group 912 can form complete correspondence.In another scheme, in ceramic tile type
Oled light plate 901 in mould group 921 and the OLED tabula rasa 902 in ceramic tile type mould group 922 can be disposed staggeredly, this original mold group
920 can be shone simultaneously with two sides and not have gap, as shown in Figure 7b.In another embodiment (see Fig. 7 c), FPC plate can be with
Two sides all printed circuits, multiple oled light plates may be electrically coupled to the two sides of FPC plate.In this way, the ceramic tile of a double-side
Formula mould group 930 may include a FPC plate 934.934 two sides of FPC plate is all printed with circuit, and such oled light plate 931 can electricity
It is fitted in side, and oled light plate 932 and 933 is in the other side.Thin-film encapsulation layer 935 can be attached to the two of FPC plate 934 by adding
Side.Equally, additional light-extraction layer can be added in luminescent layer, but not draw herein.
In some embodiments, FPC plate can not be continuously, and more optimized is netted or trellis figure.Fig. 8 a is shown
The top view of 100 a part of ceramic tile type OLED illumination module.Multiple oled light plates 110 are integrated on FPC plate 101.Each
Oled light plate has a substrate 102 and the cover plate 103 as encapsulated layer.Note that although cover plate encapsulation is drawn in Fig. 8 a, it is any
Other encapsulation technologies such as thin-film package can be used herein, periphery using 103 as characterize.With edge corresponding in Fig. 8 a
The sectional drawing of AA ' line has been drawn in Fig. 8 b.Here, FPC plate 101 has grating texture, is not overlapped or contacts with cover plate 103,
Only it is in electrical contact by bonding structure 107 and oled light plate 110.In this instance, oled light plate 110 is bottom luminescent device.Equally, light
Extract layer 104 can be bonded on FPC plate 101 by optional adhesive glue 105, as shown in Fig. 8 c.This trellis FPC
One advantage of plate is available with same fitting skill to integrate bottom and shine, and top shines and transparent oled light plate, and thus
Reduce production cost.This is because common FPC plate is lighttight.Even if some light transmissions, their optical property it is too poor and
Suitable light cannot be made to penetrate.When FPC neither blocks substrate nor blocks encapsulated layer, light is possible to penetrate from any direction
Out.For example, Fig. 9 a shows on 120 in a ceramic tile type OLED mould group that multiple top-illuminating OLED tabula rasas 111 are with institute in such as Fig. 8
The same bonding structure 107 shown has been integrated on FPC plate 101.Since OLED tabula rasa 111 shines from encapsulated layer side, light is mentioned
Take layer 106 that can be attached to encapsulated layer side.In addition, for can be with the transparent oled light plate 121 (see Fig. 9 b) of two sides light transmission, it
Can be fitted on FPC plate 101 with identical form, to constitute double-side ceramic tile 130.In such structure, a Zhang Guang
Extract layer 104 can be attached to substrate side, and another light-extraction layer 106 can be attached to encapsulated layer side.Light-extraction layer 104
It can be with 106 and may not be same type.
The substrate of this oled light plate can be the glass of hard, be also possible to flexible base board, such as, but not limited to, gather
Acid imide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), metallic film, or weaving
Product etc..The final size of ceramic tile type OLED mould group can be determined by the market demand.Multiply for example, can be used 1 meter in Asian countries
1 meter, and 6 feet (PNNL, OLED lighting products) can be multiplied with 6 feet in North America.In these ceramic tile type mould groups
On oled light plate can have different geometries, as long as they can be electrically connected on FPC plate.These are with different geometry
The oled light plate of shape can be to scale off from different motherboards.
Now if we assume that it is 43cm that each tabula rasa, which is a light-emitting area,2Square, wherein three sides shine
There are 50 microns of spacing to substrate edges for area edge, and on remaining one side, there are 50 microns of encapsulation spacing to add 500 microcontacts electric
Interpolar is away from such tabula rasa gross area is 43.45cm2, filling rate is up to 99%.If mother matrix is 6 generation lines, every mother is roughly calculated
Plate can should have the yield of theoretical value 100% further according to estimating before with 600 above-mentioned tabula rasas of output.This 600 tabula rasas exist
It is cut after encapsulation to become independent tabula rasa, is then bonded on FPC plate and forms ceramic tile type or strip-type OLED mould group.Most
Afterwards, film light diffusion layer can attach to light-emitting surface and include entire mould group, and light-emitting surface is real estate for bottom shines, right
It is package level for top shines.On the contrary, if a light-emitting area is 100cm2(assuming that 10cm x 10cm square)
Tabula rasa will produce on six generation line motherboards (1500mm x 1800mm), at most can be 270 with output.Assuming that one Zhang Liudai of production
Line motherboard cost is Q, 100cm2The yield of tabula rasa is 50%, 43cm2The yield of tabula rasa is 90%, then output is per a piece of good
100cm2The cost of tabula rasa is Q/135, and output is per a piece of good 43cm2The cost of tabula rasa is Q/540.This has reduced 4
Times cost.In fact, majority OLED illumination manufacturer is also using small-scale production line, such as LG Chem using two always
Generation (370mm x 470mm) production line.On two generation lines, it is only capable of 12 100cm of output2Tabula rasa, so that monolithic tabula rasa cost is anxious
Play rises to Q/6 (assuming that six generation lines and two generation line production costs are similar after long-term production).Therefore, by increase motherboard size and
Reduce monolithic tabula rasa size, cost can reduce more than 200 times.Even if moreover, find some defective products after dicing, they
It can also be removed before final module group assembling, so that final mould group yield is higher.
Our Experience norms in the such oled light plate manufacture of laboratory practice of oneself.The laboratory be for
Organic layer is deposited on the glass substrate of existing ITO.As previously mentioned, dust is the most key when organic layer is deposited, so we
Only using the laboratory as calculating.It is to calculate dust quantity first, table 1 lists measurement result.Our differences in laboratory
Region has carried out totally 9 measurements.The dust par M that diameter >=0.3 micron is calculated is 151 every cubic feet.Root
According to formula 1, we can calculate to obtain threshold value active region area A close to 33cm2.As standard, we devise active area
Area is 21cm2Oled light plate.The selection of this area is ensuring also to have taken into account motherboard while being less than threshold area
The maximum production capacity of (we use 6 inches to multiply 6 inches of sizes).90 blocks of oled light plates are in the Laboratory Production, every piece of tabula rasa
Organic layer thickness within 0.2 micron, by dust cause fail tabula rasa quantity be 5, statistics obtain 94.4% yield.Pay attention to
This manufacturing process is carried out in a semi-automatic laboratory, and the dust that manual operation introduces is inevitable.?
In one full automatic production environment, indeed it is contemplated that yield can be higher.
Dust counting result in laboratory is deposited in Table 1.OLED
In some embodiments, every block of good oled light plate can be located next to be bonded to each other on FPC plate.Make sure to keep in mind to the greatest extent
Managing these tabula rasas may physically be in contact with each other, their substrate is still separation, i.e., two pieces of substrates are physically not connected to, not structure
At unified object.It is put alternatively, these oled light plates can separate, spacing at least 0.1mm, more preferably for greater than 5mm.One
In a little embodiments, the wireless transceiver for detecting the sensor of movement or for linking up with other electronic equipments can be mounted in
Between oled light plate.For example, Figure 10, which is shown, is integrated with the luminous OLED in multiple bottoms in one piece of ceramic tile type OLED mould group 200
Tabula rasa 210, and interted sensor 201 and 202 between these tabula rasas.Sensor 201 and 202 can be same type of biography
Sensor, alternatively, can also have different function.The function of sensor 201 and 202 may include but be not limited to, motion sensor,
Voice operated sensor, imaging sensor, temperature sensor, gas sensor, pressure sensor, infrared sensor and/or humidity
Sensor.Intelligent lamp or Internet of Things may be implemented in this application.In one embodiment, whole face wall or ceiling or window can be with
It is covered by one or more ceramic tile type OLED mould groups 200.There is human motion when sensor 201 and 202 detects some position
When, the ceramic tile type OLED mould group in this region can be opened or be lightened.For example, sit down before desk when people enters room, desk
The OLED mould group of top can be turned on while dim lamp around.Wireless telecommunication system also can integrate in luminous tiles, with
Realization is remotely controlled with other electronic products.In addition it is also possible to which intentional leaving space is specific to realize between tabula rasa
Illumination effect.It is well known that OLED light source does not follow strictly Lambertian distribution, especially those micro-resonant cavity structures
(micro-cavity) device.It means that light intensity is not quite identical in different viewing angles, usually an angle of 90 degrees is most bright
And reduce as angle increases.A light distribution more evenly in order to obtain, oled light plate can be discharged with compartment of terrain.It is another
Aspect, a uniformly light-emitting face are unwelcome like gray skies.Therefore, the oled light plate on ceramic tile can be combined into
It is very compact in some region, and another region is loose, i.e. non-uniform Distribution, to cause the variation in light intensity.
It is improving except yield, being by another benefit that one piece of Large area light source is divided into small area light source can be with solely
Vertical RGB tabula rasa realizes white-light emitting.It is well known that human eye is to cannot be distinguished from white background and one except certain distance
Group RGB pixel.Also there is successful presentation that the white light of adjustable color is made of the RGB striation for being embedded in fuse before
Lamp (US 9,214,510B2).In our invention, every small pieces monochrome oled light plate can combine to form white light ceramic tile or item
Band.In this application, individual RGB tabula rasa can make to be selected therewith on different motherboards and be integrated on ceramic tile.It is logical
Cross and manufacture monochromatic tabula rasa respectively, each color best device architecture can be used reach optimum performance (it is usually red, green and
The best device architecture of Blue OLED is not identical), and can be operated alone by being realized in FPC circuit design.Still more, this
The manufacturing process of sample than with replacement mask and using the method for metal bus it is more simple and inexpensive (US 9,214,
510B2).Likewise, color control may be implemented to increase the function of lamps and lanterns with this RGB pattern.When insertion sensor and
When environment interaction, these ceramic tile type OLED mould groups for being integrated with monochromatic tabula rasa can be switched to warm colour white light from cool colour white light and be used for
Night illumination, or another monochrome is switched to from a monochrome according to environment or mood, to realize intelligent lamp.
Each oled light plate can produce on glass, can also produce on flexible substrates.When the hard bottom glass base of use
When plate, final ceramic tile type OLED mould group can have certain flexibility still to be bent.This is because we are at hard bottom
Gap has been stayed to make entire ceramic tile that still there is flexibility between OLED tabula rasa.On this basis, each block of hard back light plate reduces again
Size, so that bending is more efficient.Figure 11 illustrates a flexible large area ceramic tile type OLED mould group 300, contains multiple
OLED tabula rasa 310 is integrated on FPC plate 307.Each oled light plate 310 contains a hard substrate 301.It can on FPC plate 307
To plate thin film encapsulated layer 306 in advance.It can be seen that although each oled light plate 310 is a hard device in itself, entirely
Ceramic tile still can be tortuous.This wants advantageous relative to the completion of entire ceramic tile hard substrate, because it that case, transport is difficult
Degree and cost can increase because of weight and volume.Meanwhile this also large area flexible OLED than being made of whole tensioned flexible substrate
Tabula rasa will be more favored, because such usual yield of large area flexible tabula rasa is very low and cost is very high.
Figure 12 illustrates the flow chart of the method for a production ceramic tile type OLED mould group.Firstly, in the life of vapor deposition organic layer
Producing region measures the dust number that diameter is greater than 0.5 micron (more excellent to be greater than 0.3 micron for diameter).Later, with formula A=929M-2/3Threshold value active region area is calculated, i.e., there is theoretically no diameters to be greater than 0.5 micron (more excellent to be greater than 0.3 micron for diameter)
Dust maximum area.Then tabula rasa layout (Panel layout) design is carried out as target to maximize filling rate, this packet
Design contact electrode is included, the array arrangement of oled light plate on motherboard.It is mould group glazing plate distribution design after this and corresponding
FPC on-board circuitry/driving design.Then, it is prepared on motherboard according to design and encapsulates oled light plate.Encapsulation is as far as possible at least one
Realize boundlessization in side.Then motherboard is cut into fritter independence tabula rasa, and front and back can carry out a quality testing to reject herein
Oled light plate defective products.One is being preparing to simultaneously according to the flexible printed circuit board that circuit and driving design print in advance.
Alternatively, FPC plate can be coated with thin film encapsulated layer, or be integrated with some sensors in advance or other are wireless
Communication device.Finally, these independent oled light plates being cut are bonded on FPC plate according to circuit design to be fabricated to
Ceramic tile type or tape formula OLED mould group.Fitting can gather mechanical arm by one, dispensing, UV illumination, heating device,
And/or the fitting robot of the system of pressurization jig completes.As another option, light-extraction layer can be by plastic packaging in completion
On the light-emitting surface of mould group.
It should be appreciated that various embodiments described is only as an example, have no intent to limit the scope of the invention.Cause
This, as the skilled person will be apparent, the claimed invention may include specific implementation as described herein
The variation of example and preferred embodiment.Many in material described herein and structure can be replaced with other materials and structure,
Without departing from spirit of the invention.It should be understood that being not intended to be restrictive about the various the theories why present invention works.
Claims (26)
1.OLED illumination module includes:
Multiple oled light plates, wherein the oled light plate include substrate, OLED device, encapsulated layer, at least one positive contact, until
Few cathode contacts and at least one light-emitting area；
First flexible printed circuit board includes first surface and second surface, and is printed on the first electricity of the first surface
Road；
At least one described positive contact and at least one described cathode contacts of oled light plate described in wherein at least two are electrically connected
First circuit being connected on the first surface of first flexible printed circuit board, so that multiple oled light plates
Externally it is electrically accessed；
It is characterized in that, the substrate of oled light plate described in wherein at least two is separated.
2. OLED illumination module according to claim 1, further includes light-extraction layer.
3. OLED illumination module according to claim 2 wherein the light-extraction layer is diffusion barrier, and attaches at least one
At least one light-emitting area of a oled light plate.
4. OLED illumination module according to claim 2, wherein the light-extraction layer extends at least one described OLED
Except the light-emitting area of tabula rasa.
5. OLED illumination module according to claim 4, wherein the light-extraction layer is attached to first flexible printing
At least part of circuit board.
6. OLED illumination module according to claim 1, wherein the encapsulated layer is thin-film encapsulation layer.
7. OLED illumination module according to claim 1, wherein the encapsulated layer is the cover plate for being adhered to the substrate.
8. OLED illumination module according to claim 1, further includes one or more sensors, wherein at least one
The sensor is placed between two oled light plates.
9. OLED illumination module according to claim 8, wherein the sensor includes one of the following or a variety of biographies
Sensor: motion sensor, imaging sensor, sound transducer, temperature sensor, gas sensor, humidity sensor or infrared
Sensor.
10. OLED illumination module according to claim 1, wherein the multiple oled light plate also includes that transmitting has first
First oled light plate of the light of peak wavelength, and transmitting have the second oled light plate of the light of the second peak wavelength, wherein described
First peak wavelength and second peak wavelength differ at least 10nm.
11. OLED illumination module according to claim 10, wherein the multiple oled light plate further includes third
Oled light plate, wherein the transmitting of the first oled light plate has the light of the first peak wavelength of 400-500nm, the second oled light plate transmitting tool
There is the light of the second peak wavelength of 500-580nm, the transmitting of third oled light plate has the light of 580-700nm third peak wavelength.
12. OLED illumination module according to claim 1, further includes support membrane, wherein the support membrane attaches to
At least part of the side relative to the light-emitting area of first flexible printed circuit board.
13. OLED illumination module according to claim 1, wherein first flexible printed circuit board only with oled light plate
A part overlapping.
14. OLED illumination module according to claim 1, wherein first flexible printed circuit board passes through conducting resinl electricity
It is connected on oled light plate.
15. OLED illumination module according to claim 1 further includes and is printed on first flexible printed circuit board
Second surface on second circuit, wherein at least one oled light plate is electrically connected to the first surface, and at least another
A oled light plate is electrically connected to the second surface of first flexible printed circuit board.
16. OLED illumination module according to claim 1, wherein first flexible printed circuit board is less than 1mm thickness.
17. OLED illumination module according to claim 1, wherein first flexible printed circuit board further includes one
Tensioned flexible substrate, the flexible base board are selected from the group being made up of: plastics, film glass are coated with the metallic film of insulating layer,
Fabric, leather, paper, and combinations thereof.
18. OLED illumination module according to claim 1, the substrate of wherein at least one oled light plate is flexible
's.
19. OLED illumination module according to claim 1, wherein at least one oled light plate independently drives on circuit
It is dynamic.
20. OLED illumination module according to claim 1, wherein the multiple oled light plate has identical or different shape
Shape.
21. OLED illumination module according to claim 1, wherein at least two oled light plate is cut from two motherboards
Come.
22. OLED illumination module according to claim 1, wherein the multiple oled light plate be unevenly distributed over it is described
On first flexible printed circuit board.
23. OLED illumination module according to claim 1, has between the substrate of wherein at least two oled light plate and be greater than
The space of 0.1mm.
24. OLED illumination module according to claim 1, wherein the first surface of first flexible printed circuit board or
At least one of second surface is pre-coated with thin-film encapsulation layer.
25. OLED illumination module according to claim 1 further includes the second flexible printed circuit board, plurality of
Oled light plate is electrically connected to second flexible printed circuit board, wherein first flexible printed circuit board and the second flexible print
Printed circuit board is connected so that at least one oled light plate on first flexible printed circuit board along with it is described second soft
Property printed circuit board on the opposite direction of at least one oled light plate emit light.
26.OLED illuminator, which is characterized in that include at least one OLED illumination module as described in claim 1.
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| CN111951670A (en) * | 2020-08-14 | 2020-11-17 | 华中科技大学 | Display, lighting and wearable electronic equipment with gas-sensitive function and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111951670A (en) * | 2020-08-14 | 2020-11-17 | 华中科技大学 | Display, lighting and wearable electronic equipment with gas-sensitive function and preparation method |
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