CN109509404A - Flexible organic light-emitting display device - Google Patents
Flexible organic light-emitting display device Download PDFInfo
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- CN109509404A CN109509404A CN201910053857.2A CN201910053857A CN109509404A CN 109509404 A CN109509404 A CN 109509404A CN 201910053857 A CN201910053857 A CN 201910053857A CN 109509404 A CN109509404 A CN 109509404A
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- emitting display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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Abstract
The embodiment of the present invention provides a kind of flexible organic light-emitting display device, is related to field of display technology, for improving display effect, so that bending state is identical as the display effect of flat.Flexible organic light-emitting display device includes: at least two flexible organic light emitting display panels of overlapping setting, and the light direction of at least two flexible organic light emitting display panels is identical；It is stacked the polaroid in at least two flexible organic light emitting display panel light emission sides；Optical cement between the polaroid and at least two flexible organic light emitting display panels is set, and the optical cement is used to for at least two flexible organic light emitting display panels being bonded with the polaroid；Wherein, the optical cement is covered on at least two flexible organic light emitting display panels, and the optical cement keeps formation state close to the one side of light emission side.Above-mentioned flexibility organic light-emitting display device is suitable for display.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of flexible organic light-emitting display devices.
Background technique
In recent years, with the continuous development of display technology, all kinds of display devices are come into being, and such as liquid crystal display device has
Machine luminous display unit etc. has become the main product of display industry at present, wherein flexible organic light emitting display panel more with
Frivolous, low-power consumption, high brightness, high contrast, high-resolution, wide viewing angle and a series of excellent performances such as foldable and become
The main trend of display industry development is the hot spot that current display field falls over each other research.
In the prior art, large scale flexibility organic light emitting display panel screen mostly uses splicing, i.e., has two flexibilities
Machine light emitting display panel is overlapped, and crossover region is bonded with adhesive, then covers polaroid in light emission side, and will be inclined
Mating plate and the edge of flexible organic light emitting display panel carry out glue envelope, so that the flexible apparatus is bent or crimps.
After encapsulating in the way of above-mentioned glue envelope, two flexible organic light emitting display panels of setting are overlapped far from light emission side
One gap is had between polaroid, can when overlapping two flexible organic light emitting display panels are in flat
Normal display；But two flexible organic light emitting display panels, after bending or curling, polaroid can be in contact with screen, light
Refractive index from flat when it is different, to influence display effect.
Therefore, how to make the display effect after bending identical as the display effect of flat is that this field is urgently to be resolved
Main problem.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of flexible organic light-emitting display device to be made for improving display effect
It is identical as the display effect of flat to obtain bending state.
The present invention provides a kind of flexible organic light-emitting display device, which includes:
The flexible organic light emitting display panel of at least two of overlapping setting, at least two flexible organic light emitting display faces
The light direction of plate is identical；
It is stacked the polaroid in at least two flexible organic light emitting display panel light emission sides；
Optical cement between the polaroid and at least two flexible organic light emitting display panels, the light are set
Glue is learned to be used to for at least two flexible organic light emitting display panels being bonded with the polaroid；
Wherein, the optical cement is covered on at least two flexible organic light emitting display panels, and the optics
Glue keeps formation state close to the one side of light emission side.
Optionally, along light direction, the thickness of the optical cement contacted with the flexible organic light emitting display panel on being arranged in
Degree is h1,0.05mm≤h1≤0.15mm；The thickness of the optical cement contacted with the flexible organic light emitting display panel under being arranged in
For h2,0.25mm≤h2≤0.35mm.
Optionally, light transmittance T >=98% of the optical cement.
Optionally, flexible organic light-emitting display device further include:
Shading rubber belt, the shading rubber belt are used for at least two of the overlapping setting flexible organic light emitting display panels
The face far from light emission side is bonded.
Optionally, the shading rubber belt is used for at least two of the overlapping setting flexible organic light emitting display panels are equal
Intersection far from light emission side is bonded.
Optionally, vertical on the light direction, the width of the shading rubber belt is K, 0.8cm≤K≤1.5cm.
Optionally, the shading rubber belt is static-free glue band.
Optionally, flexible organic light-emitting display device further include:
Adhesive, along light direction, be arranged on flexible organic light emitting display panel away from the one of light direction
Side is provided with the first crossover region, and the flexible organic light emitting display panel under being arranged in is provided with second close to the side of light direction
Crossover region, first crossover region and second crossover region are bonded by described adhesive.
Optionally, described adhesive is the optical cement.
Optionally, under rolled state, the curling of at least two flexible organic light emitting display panels of setting is overlapped
Radius is R, R >=5mm.
Having the beneficial effect that the aspect and any possible implementation manners as described above:
On the one hand, horizontal close to the one side of light emission side due to optical cement, so that there is no gap between polaroid and optical cement,
The refractive index of light is projected without the interference of air layer, improves flexible organic display device under bending or rolled state
Display effect, so that flexible organic display device is in the display effect under bending or rolled state close to aobvious under flattened state
Show effect, improves the display quality of flexible organic light-emitting display device.On the other hand, soft since entire optical cement to be covered on
Property organic light emitting display panel on, therefore bond between polaroid and flexible organic light emitting display panel it is more firm.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of flexibility organic light-emitting display device provided by the embodiment of the present invention；
Fig. 2 is a kind of sectional view in Fig. 1 provided by the embodiment of the present invention at the position AA '；
Fig. 3 is another sectional view in Fig. 1 provided by the embodiment of the present invention at the position AA '；
Fig. 4 is another sectional view in Fig. 1 provided by the embodiment of the present invention at the position AA '；
Fig. 5 is a kind of structural schematic diagram of flexibility organic light-emitting display device provided by the embodiment of the present invention；
Fig. 6 is a kind of sectional view in Fig. 5 provided by the embodiment of the present invention at the position BB '；
Fig. 7 is another sectional view in Fig. 5 provided by the embodiment of the present invention at the position BB '；
Fig. 8 is another structural schematic diagram of flexibility organic light-emitting display device provided by the embodiment of the present invention；
Fig. 9 is another structural schematic diagram of flexibility organic light-emitting display device provided by the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It will be appreciated that though crossover region may be described in embodiments of the present invention using term first, second etc., but this
A little crossover regions should not necessarily be limited by these terms.These terms are only used to for crossover region being distinguished from each other out.For example, not departing from the present invention
In the case where scope of embodiments, the first crossover region can also be referred to as the second crossover region, and similarly, the second crossover region can also be by
Referred to as the first crossover region.
It should be noted that the nouns of locality such as "upper", "lower" described in the embodiment of the present invention, "left", "right" are with attached drawing
Shown in angle come what is be described, should not be construed as the restriction to the embodiment of the present invention.Furthermore within a context, it is also necessary to manage
Solution can not only be formed directly into another when mentioning an element and being formed on "above" or "below" another element
Perhaps "lower" can also be indirectly formed by intermediary element in another element "upper" or "lower" for a element "upper".
It is detailed introduce this programme before, technology train of thought of the invention is simply introduced:
When inventor bonds polaroid and display panel, there are following several test methods:
It is exactly the surrounding gluing along display panel, by panel and partially one is solid gum is conducive to using hollow bonding
Mating plate bonding.But aforesaid way, it can also be realized in the display screen of rigidity, but in flexible display screen, display panel
After bending, bond site unbalance stress, it may appear that notch, to affect display effect.
It is exactly that transparent optical cement carries out hollow bonding there are also one kind, optical cement is liquid when in use, convenient for coating,
And area coverage is larger, therefore fastness is improved, but has drop between two screens due to overlapping setting, and two
Vertical range between a screen and polaroid is different, and there are air between screen and polaroid, since screen is in bending state
Under, the path for projecting light is changed, and display effect is caused to have differences with the display effect under flattened state；Alternatively, screen
Curtain projects light and needs by that could project after air and flexible base board under rolled state, and injection light is in air and soft at this time
The interface of property substrate reflects, and display effect is caused to have differences with the display effect under flattened state.
To solve the above-mentioned problems, inventor devises following technical solution:
The present embodiment provides a kind of flexible organic light-emitting display devices, and as depicted in figs. 1 and 2, Fig. 1 is the embodiment of the present invention
A kind of structural schematic diagram of provided flexibility organic light-emitting display device, Fig. 2 are in Fig. 1 provided by the embodiment of the present invention
A kind of sectional view at the position AA ', the flexibility organic light-emitting display device 500 include: that at least two flexibilities of overlapping setting have
The light direction of machine light emitting display panel 10, at least two flexible organic light emitting display panels 10 is identical.Wherein, in dashed region
The as overlapping region of the two.It, can be by two flexible organic light emitting display panel splicings one in order to meet large-sized requirement
It rises.It had not only been able to satisfy large scale requirement in this way, but also can guarantee display quality.
As shown in Fig. 2, along the direction of the arrow, be arranged on flexible organic light emitting display panel can be 101, be arranged under
Flexible organic light emitting display panel can be 102.In the present embodiment, the two can be the flexible organic light emitting display of emission structure at top
Panel also can be the flexible organic light emitting display panel of bottom emitting structure, not limited particularly it in the present embodiment,
As long as the light direction for meeting the two is identical.
With continued reference to Fig. 2, the flexibility organic light-emitting display device 500 further include: being stacked has at least two flexibilities
The polaroid 11 of 10 light emission side of machine light emitting display panel.
The flexibility organic light-emitting display device 500 further include: setting is in polaroid 11 and at least two flexible organic light emissions
Optical cement 12 between display panel 10, optical cement 12 are used at least two flexible organic light emitting display panels 10 and polaroid
11 fittings.Wherein, optical cement 12 is covered at least two flexible organic light emitting display panels 10, and optical cement 12 is close to out
The one side of light side keeps formation state.
Optical cement in the present embodiment can be liquid optical cement (LOCA), and when liquid, two coated in overlapping setting soft
On property organic light emitting display panel, flexible organic light emitting display panel and polaroid can be fitted in one after its solidification
It rises.On the one hand, horizontal close to the one side of light emission side due to optical cement, so that there is no gap between polaroid and optical cement, project
The refractive index of light improves flexible organic light-emitting display device under bending or rolled state without the interference of air layer
Display effect, so that flexible organic light-emitting display device is in the display effect under bending or rolled state close under flattened state
Display effect, improve the display quality of flexible organic light-emitting display device.On the other hand, due to covering entire optical cement
It is more firm to bond in flexible organic light emitting display panel, therefore between polaroid and flexible organic light emitting display panel.
In one embodiment, with continued reference to Fig. 2, along light direction (as shown by the arrows in Figure 2), with setting upper
Flexible organic light emitting display panel contact optical cement with a thickness of h1,0.05mm≤h1≤0.15mm；Under being arranged in
The optical cement of flexible organic light emitting display panel contact with a thickness of h2,0.25mm≤h2≤0.35mm.
The painting amount of optical cement is small, and the transmitance of light is high, but cannot be guaranteed polaroid 11 and flexible organic light emitting display face
Fastness between plate 10, thus in the present embodiment optical cement maximum gauge in 0.35mm, on the one hand ensure that polarisation in this way
On the other hand fastness between piece and flexible organic light emitting display panel ensure that projecting light has enough transmitances.By
It is not identical in the horizontal plane of two flexible organic light emitting display panels, in order to guarantee that optical cement has smooth horizontal plane, and set
Set under flexible organic light emitting display panel contact optical cement thickness h 2 be naturally larger than and be arranged on flexibility it is organic
On the one hand the thickness h 1 of the optical cement of light emitting display panel contact can make polaroid and two flexible organic light emissions in this way
Display panel passes through optics glue bond, does not have air layer between another aspect polaroid and flexible organic light emitting display panel,
The interference that light avoids air layer is projected, so that display of the flexible organic light-emitting display device under formation state and rolled state
Effect is identical.
In one embodiment, light transmittance T >=98% of optical cement.The optical cement of high transparency can effectively increase light
Shot, improve light emission rate.
As shown in figure 3, it is another sectional view at the position AA ' in Fig. 1 provided by the embodiment of the present invention, this implementation
In example, flexible organic light-emitting display device 500 further include:
Shading rubber belt 13, shading rubber belt 13 are used for at least two of overlapping setting flexible organic light emitting display panels 10
Face far from light emission side is bonded.In Fig. 3, will be arranged on flexible organic light emitting display panel 101 away from arrow side
To face be bonded together with the flexible organic light emitting display panel 102 under being arranged in away from the face of arrow direction.It is such to set
Meter is so that two flexible organic light emitting display panels are stronger.
Further, in a kind of specific embodiment, as shown in figure 4, it is Fig. 1 provided by the embodiment of the present invention
Another sectional view at the middle position AA ', shading rubber belt 13 are used for at least two of overlapping setting flexible organic light emitting displays
The intersection far from light emission side of panel 10 is bonded.The intersection of the two is bonded in the present embodiment, on the one hand may be used
Improve the fastness of two flexible organic light emitting display panels of overlapping setting；On the other hand it can avoid optical cement to overflow herein.
It is still further, in another specific embodiment, with continued reference to Fig. 4, on perpendicular to light direction,
The width of shading rubber belt is K, 0.8cm≤K≤1.5cm.Along light direction (direction as shown by the arrows in Figure 4), shading rubber belt
Width it is small, then can not be by the flexible organic light emitting display panel adhesions of two overlapping settings；If the width of shading rubber belt is too
It is long, the waste of shading rubber belt is caused, therefore is taken into account in the present embodiment and the width of shading rubber belt is set after fastness and practicability
It sets between 0.8cm≤K≤1.5cm.
Optionally, the shading rubber belt 13 in the present embodiment can be static-free glue band.Static-free glue band can avoid generating electrostatic
Screen is impacted.
It should be noted that since shading rubber belt itself is smaller, and two flexibilities that overlapping setting is arranged in are organic
The intersection of light emitting display panel can't cause to block, will not influence normal display to organic luminescent device.
In one embodiment, as shown in Figure 5 and Figure 6, Fig. 5 is flexibility organic light emission provided by the embodiment of the present invention
A kind of structural schematic diagram of display device, Fig. 6 are a kind of sectional view in Fig. 5 provided by the embodiment of the present invention at the position BB ',
Flexible organic light-emitting display device 500 further include:
Adhesive 14, along light direction (arrow direction in Fig. 5), be arranged on flexible organic light emitting display panel
101 are provided with the first crossover region 1011 away from the side of light direction, and the flexible organic light emitting display panel 102 under being arranged in is leaned on
The side of nearly light direction is provided with the second crossover region 1021, and the first crossover region 1011 and the second crossover region 1021 pass through adhesive
14 bondings.The fastness between two flexible aobvious plate face plates of organic light emissions can be increased in this way.As shown in figure 5, for clear table
Show the first crossover region 1011 and the second crossover region 1021, be arranged on flexible organic light emitting display panel 101 be set as 65%
Transparency, will be obvious two crossover regions in this way.
In a kind of specific embodiment, which can be optical cement.As shown in fig. 7, it is implemented for the present invention
Another sectional view provided by example in Fig. 5 at the position BB ', in the present embodiment, by optical cement 12 by the two of overlapping setting
A flexibility organic light emitting display panel 10 is bonded, on the other hand the technique that on the one hand can save one of smearing adhesive may be used
The thickness for reducing flexible organic light-emitting display device, so that the flexibility organic light-emitting display device is more frivolous.
As shown in figure 8, it shows for another structure of flexibility organic light-emitting display device provided by the embodiment of the present invention
It is intended to, under rolled state, the crimp radius for overlapping at least two flexible organic light emitting display panels of setting is R, R >=5mm.
That is, the least radius of the flexibility organic light-emitting display device 500 is 5mm.
It should be noted that the flexible organic light emission being spliced in the present embodiment by flexibility organic light emitting display panel
Display device may include multiple flexible organic light emitting display panels, illustratively can be as shown in figure 9, it is institute of the embodiment of the present invention
Another structural schematic diagram of the flexible organic light-emitting display device of offer, it may include 3 flexibilities of mutually overlapping setting are organic
Light emitting display panel may also comprise 4 flexible organic light emitting display panels of overlapping setting, not have to flexibility in the present embodiment
The particular number of machine light emitting display panel is particularly limited, can be according to specific product depending on.
In addition, the flexible organic light-emitting display device 500 in the present embodiment can be mobile terminal, specifically, the movement is whole
End can include but is not limited to personal computer (PersonalComputer, PC), personal digital assistant
(PersonalDigital Assistant, PDA), radio hand-held equipment, tablet computer (Tablet Computer), MP4 are broadcast
Put any electronic equipment having a display function such as device or television set.
The flexible organic light-emitting display device of the present embodiment, compared with prior art, on the one hand, since optical cement is close to out
The one side of light side is horizontal, so that not having gap between polaroid and optical cement, projects the refractive index of light without the dry of air layer
It disturbs, improves display effect of the flexible organic display device under bending or rolled state, thus flexible organic display device
In the display effect under bending or rolled state close to the display effect under flattened state, flexible organic light emitting display is improved
The display quality of device.On the other hand, since entire optical cement to be covered in flexible organic light emitting display panel, polarisation
It is more firm to bond between piece and flexible organic light emitting display panel.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of flexibility organic light-emitting display device characterized by comprising
The flexible organic light emitting display panel of at least two of overlapping setting, at least two flexible organic light emitting display panels
Light direction is identical；
It is stacked the polaroid in at least two flexible organic light emitting display panel light emission sides；
Optical cement between the polaroid and at least two flexible organic light emitting display panels, the optical cement are set
For at least two flexible organic light emitting display panels to be bonded with the polaroid；
Wherein, the optical cement is covered on at least two flexible organic light emitting display panels, and the optical cement leans on
The one side of nearly light emission side keeps formation state.
2. flexibility organic light-emitting display device according to claim 1, which is characterized in that
Along light direction, the optical cement contacted with the flexible organic light emitting display panel on being arranged in with a thickness of h1,
0.05mm≤h1≤0.15mm；The optical cement contacted with the flexible organic light emitting display panel under being arranged in with a thickness of h2,
0.25mm≤h2≤0.35mm。
3. flexibility organic light-emitting display device according to claim 1, which is characterized in that
Light transmittance T >=98% of the optical cement.
4. flexibility organic light-emitting display device according to claim 1, which is characterized in that further include:
Shading rubber belt, the shading rubber belt are used for at least two of the overlapping setting flexible organic light emitting display panels are remote
Face from light emission side is bonded.
5. flexibility organic light-emitting display device according to claim 4, which is characterized in that
The shading rubber belt is used for at least two of the overlapping setting flexible organic light emitting display panels far from light emission side
Intersection bonded.
6. flexibility organic light-emitting display device according to claim 4, which is characterized in that
On perpendicular to the light direction, the width of the shading rubber belt is K, 0.8cm≤K≤1.5cm.
7. flexibility organic light-emitting display device according to claim 4, which is characterized in that
The shading rubber belt is static-free glue band.
8. flexibility organic light-emitting display device according to claim 1, which is characterized in that further include:
Adhesive, along light direction, be arranged on the side away from light direction of flexible organic light emitting display panel set
It is equipped with the first crossover region, the flexible organic light emitting display panel under being arranged in is provided with second close to the side of light direction and overlaps
Area, first crossover region and second crossover region are bonded by described adhesive.
9. flexibility organic light-emitting display device according to claim 8, which is characterized in that
Described adhesive is the optical cement.
10. flexibility organic light-emitting display device according to claim 1, which is characterized in that
Under rolled state, the crimp radius for overlapping at least two flexible organic light emitting display panels of setting is R, R >=
5mm。
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| CN110610664A (en) * | 2019-09-25 | 2019-12-24 | 云谷（固安）科技有限公司 | Cover plate with polarization function, flexible display panel and rollable display device |
| CN111640377A (en) * | 2020-06-30 | 2020-09-08 | 上海天马微电子有限公司 | Display module and display device |
| CN112940638A (en) * | 2021-02-01 | 2021-06-11 | 武汉天马微电子有限公司 | Composite adhesive tape, display device and manufacturing method thereof |
| CN113093942A (en) * | 2021-04-13 | 2021-07-09 | 业成科技（成都）有限公司 | Display assembly and manufacturing method thereof, touch display module and electronic equipment |
| CN115132091A (en) * | 2022-07-20 | 2022-09-30 | 武汉华星光电半导体显示技术有限公司 | Splicing module and electronic device |
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Application publication date: 20190322 Assignee: BAZHOU YUNGU ELECTRONIC TECHNOLOGY Co.,Ltd.|KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER Co.,Ltd.|KUNSHAN GO-VISIONOX OPTO-ELECTRONICS Co.,Ltd. Assignor: YUNGU (GU'AN) TECHNOLOGY Co.,Ltd. Contract record no.: X2019990000155 Denomination of invention: FLEXIBLE ORGANIC LIGHT EMITTING DISPLAY DEVICE License type: Common License Record date: 20191030 |
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Effective date of registration: 20191210 Address after: No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong province (the core of Zengcheng economic and Technological Development Zone) Applicant after: Guangzhou Guoxian Technology Co.,Ltd. Address before: 065500 Hebei Langfang County Guan emerging industry demonstration area Applicant before: YUNGU (GU'AN) TECHNOLOGY Co.,Ltd. |
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