CN207690042U - Touch screen and its flexible cover plate - Google Patents
Touch screen and its flexible cover plate Download PDFInfo
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- CN207690042U CN207690042U CN201721763909.8U CN201721763909U CN207690042U CN 207690042 U CN207690042 U CN 207690042U CN 201721763909 U CN201721763909 U CN 201721763909U CN 207690042 U CN207690042 U CN 207690042U
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Abstract
The utility model is related to a kind of touch screen and its flexible cover plates.The flexible cover plate, for in touch screen, flexible cover plate includes the transparent glass layer and clarity plastic layer being stacked, surface of the transparent glass layer far from clarity plastic layer with finger for contacting, surface of the clarity plastic layer far from transparent glass layer with the conductive film of touch screen for connecting, the thickness of transparent glass layer is 0.05~0.2mm, and the thickness of clarity plastic layer is 0.05~0.2mm, and the sum of thickness of transparent glass layer and clarity plastic layer is not more than 0.3mm.The scratch resistance performance and bending performance of the flexible cover plate are preferable.
Description
Technical field
The utility model is related to technical field of touch control, more particularly to a kind of touch screen and its flexible cover plate.
Background technology
The panel that touch-control electronic product (mobile phone, tablet etc.) is used to contact with finger is cover sheet.In recent years, occur
Flexible cover plate so that touch-control electronic product can be towards with flexibility, and bending deformed direction is developed.Traditional flexible cover plate
The glassy layer being stacked and plastic layer are generally included, plastic layer is located at outside, for being contacted with finger.Plastic layer can increase
The reelability of flexible glass, and can protective glass layers.But the case hardness of plastic layer is less than the case hardness of glassy layer, causes soft
Property glass scratch resistance performance it is poor, be easy scratched.In order to promote the scratch resistance performance of flexible glass entirety, it usually needs to plastics
Layer carries out intensive treatment, and strengthening layer is formed on surface of the plastic layer far from glassy layer.And it is traditional, include the flexibility of glassy layer
The bendable folding endurance of cover board is poor.
Utility model content
Based on this, it is necessary to provide a kind of scratch resistance performance and the preferable touch screen of bending performance and its flexible cover plate.
A kind of flexible cover plate, in touch screen, the flexible cover plate includes the transparent glass layer being stacked and transparent
Plastic layer；
The transparent glass layer includes the first surface and second surface being oppositely arranged, and the first surface is used for and finger
Contact；
The clarity plastic layer includes the third surface and the 4th surface being oppositely arranged, the 4th surface be used for it is described
The conductive film of touch screen connects；
Wherein, the thickness of the transparent glass layer is 0.05~0.2mm, the thickness of the clarity plastic layer is 0.05~
0.2mm, and the sum of the transparent glass layer and the thickness of the clarity plastic layer are not more than 0.3mm.
The case hardness of transparent glass layer is more than the surface of clarity plastic layer, and hardness is substantially by thickness effect, therefore,
The flexible cover plate that contact with finger is used for using transparent glass layer, relative to traditional flexible cover plate (using plastic layer for
The flexible cover plate of finger contact), scratch resistance performance is more preferable, it is not easy to be scratched, need not additionally do intensive treatment, you can so that soft
Property cover board have preferable scratch resistance performance.The thickness of transparent glass layer, the thickness of clarity plastic layer and transparent glass layer and institute
The sum of the thickness for stating clarity plastic layer after optimized processing, can make flexible cover plate have preferable bending performance.
The thickness of the clarity plastic layer is equal to the thickness of the transparent glass layer, and institute in one of the embodiments,
It states the sum of transparent glass layer and the thickness of the clarity plastic layer and is not less than 0.2mm.To transparent glass layer thickness with it is transparent
The thickness of plastic layer can be larger, and the formation of the thickness and clarity plastic layer of transparent glass layer is all opposite to be easier to.
A diameter of 5~the 30mm of the bending of the flexible cover plate in one of the embodiments,.In this way, the flexible cover plate is non-
Often it is suitble to flexible touch screen.
A diameter of 5~the 20mm of the bending of the flexible cover plate in one of the embodiments,.In this way, the flexible cover plate is non-
Often it is suitble to flexible touch screen.
A diameter of 5~the 10mm of the bending of the flexible cover plate in one of the embodiments,.In this way, the flexible cover plate is non-
Often it is suitble to flexible touch screen.
In one of the embodiments, the flexible cover plate around dog-ear degree be 120~180 °.In this way, the flexible cover plate
It is very suitable for flexible touch screen.
In one of the embodiments, the flexible cover plate around dog-ear degree be 90~180 °.In this way, the flexible cover plate is non-
Often it is suitble to flexible touch screen.
In one of the embodiments, the flexible cover plate around dog-ear degree be 60~180 °.In this way, the flexible cover plate is non-
Often it is suitble to flexible touch screen.
The flexible cover plate further includes ink layer in one of the embodiments, and the ink layer is set to the transparent modeling
On 4th surface of the bed of material, the flexible cover plate is divided into visible area and non-visible area domain.The main component of glass
The main component for being silicate namely glass is inorganic compound.The main component of plastics be resin namely plastics it is main at
It is divided into organic compound.The main component resins of ink namely the main component of ink are organic compound.It is mixed according to similar
Principle, therefore, the adhesive force between ink layer and clarity plastic layer can be more than the adhesive force between ink layer and transparent glass layer.
Namely it relative to traditional flexible cover plate, is less susceptible to fall in the ink layer of above-mentioned flexible cover plate.
The thickness of the ink layer is 5~30 μm in one of the embodiments,.Due to the thickness very little of ink layer, and
Positioned at non-visible area domain (fringe region), ink layer influences very little to the whole bending performance of flexible cover plate, can neglect substantially
Slightly.
The heat distortion temperature of the clarity plastic layer is more than or equal to 150 ° in one of the embodiments, the transparent modeling
The water absorption rate of the bed of material is less than 1%.Since the heat distortion temperature of clarity plastic layer is higher, high temperature can be set on clarity plastic layer
Ink.The water absorption rate of clarity plastic layer is small, can be to avoid in ageing process, and the moisture in clarity plastic layer is released,
And form atomization group, bubble etc., influence the appearance and light transmittance of touch screen.The transparent plastic in one of the embodiments,
Layer is polyimide layer or Polycarbonate Layer.The heat distortion temperature of polyimide layer and Polycarbonate Layer is higher, and water absorption rate
It is smaller.
The flexible cover plate further includes film plating layer in one of the embodiments, and the film plating layer is set to the transparent glass
On the first surface of glass layer, the film plating layer is at least one of anti-finger print layer, antireflection layer and Bewildering resistance layer.Glass it is main at
The main component for point being silicate namely glass is inorganic compound.The main component of plastics is the main of resin namely plastics
Ingredient is organic compound.The main component of film plating layer is silicon-containing polymer or inorganic compound.It is mixed according to similar
Principle, therefore, the adhesive force between film plating layer and transparent glass layer can be more than the adhesive force between film plating layer and clarity plastic layer.
Namely it relative to traditional flexible cover plate, is less susceptible to fall in the film plating layer of above-mentioned flexible cover plate.
The thickness of the film plating layer is 20~200nm in one of the embodiments,.Due to the thickness very little of film plating layer,
Film plating layer influences very little to the whole bending performance of flexible cover plate, can ignore substantially.
A kind of touch screen, including：
Above-mentioned flexible cover plate；And
Conductive film for determining touch-control coordinate, the conductive film are set on the 4th surface of the clarity plastic layer.
The cover sheet of above-mentioned touch screen changes into flexible cover plate, when conductive film also has flexible, can obtain flexibility
Touch screen.
Description of the drawings
Fig. 1 is the structural schematic diagram of the touch screen of one embodiment of the utility model；
Fig. 2 is the signal that a flexible cover plate of another embodiment of the utility model is under minimum bending angle state
Figure；
Fig. 3 is the signal that another flexible cover plate of another embodiment of the utility model is under minimum bending angle state
Figure；
Fig. 4 is the signal that another flexible cover plate of another embodiment of the utility model is under minimum bending angle state
Figure.
Specific implementation mode
Below in conjunction with the accompanying drawings and touch screen and its flexible cover plate is further described in specific embodiment.
As shown in Figure 1, the touch screen 10 of an embodiment includes flexible cover plate 12, conductive film 14 and connection flexible cover plate
12 with optical cement (Optically Clear Adhesive, OCA) layer of conductive film 14.Conductive film 14 is close to flexible cover plate 12
Surface is equipped with ITO (Indium Tin Oxide, tin indium oxide) layer 14a and one end is connect with ITO layer 14a, and the other end is used for
The elargol lead 14b being connect with IC.ITO layer 14a is for determining that touch coordinate signal, elargol lead 14b are used for touch coordinate
In signal transmission to IC, to realize touch function.Wherein, the region where ITO layer 14a is visible area, elargol lead 14b
The region at place is non-visible area domain.
Flexible cover plate 12 includes transparent glass layer 100 and clarity plastic layer 200.Transparent glass layer 100 and clarity plastic layer
200 are stacked, and surface of the transparent glass layer 100 far from clarity plastic layer 200 with finger for contacting, clarity plastic layer 200
Surface far from transparent glass layer 100 with the conductive film 14 of touch screen 10 for connecting.The thickness of transparent glass layer 100 is 0.05
~0.2mm, the thickness of clarity plastic layer 200 are 0.05~0.2mm, and the thickness of transparent glass layer 100 and clarity plastic layer 200
The sum of be not more than 0.3mm.
The case hardness of transparent glass layer 100 is more than the surface of clarity plastic layer 200, and hardness is not substantially by thickness shadow
It rings, therefore, the flexible cover plate 10 for being used to contact with finger using transparent glass layer 100 (is used relative to traditional flexible cover plate
The flexible cover plate that plastic layer is used to contact with finger), scratch resistance performance is more preferable, it is not easy to be scratched, need not additionally be done at reinforcing
Reason, you can so that flexible cover plate 10 has preferable scratch resistance performance.
Transparent glass layer 100 has preferable scratch resistance and intensity, when the thickness of transparent glass layer 100 is less than 0.3mm,
Transparent glass layer 100 also has flexibility, and the thickness of transparent glass layer 100 is bigger, and scratch resistance is basically unchanged, and intensity becomes strong, soft
Property be deteriorated, consider the factors such as scratch resistance, intensity and deteriorated flexibility, the thickness of setting transparent glass layer 100 is 0.05~
0.2mm.Clarity plastic layer 200 has preferable flexible and toughness, and the thickness of clarity plastic layer 200 is bigger, flexible poorer, toughness
More preferably, consider the factors such as flexible and toughness, the thickness of setting clarity plastic layer 200 is 0.05~0.2mm.Flexible cover plate 12
Integral thickness it is bigger, the flexibility of flexible cover plate 12 is poorer, is more unfavorable for obtaining the smaller touch screen 10 of thickness, consider soft
Property the flexibility of cover board 12, the thickness of touch screen 10, the thickness of clarity plastic layer 200 and transparent glass layer 100 thickness, setting
The sum of transparent glass layer 100 and the thickness of clarity plastic layer 200 are not more than 0.3mm.
Further, in the present embodiment, a diameter of 5~30mm of the bending of flexible cover plate 12.In this way, the flexible cover plate 12
It is very suitable for flexible touch screen 10.Preferably, a diameter of 5~20mm of the bending of flexible cover plate 12.It is highly preferred that flexible cover plate 12
The a diameter of 5~10mm of bending.It should be noted that bending diameter is smaller to show that the flexibility of flexible cover plate 12 is better.
Further, in the present embodiment, flexible cover plate 12 around dog-ear degree be 120~180 °.In this way, the flexible cover plate
12 are very suitable for flexible touch screen 10.Preferably, the flexible cover plate 12 around dog-ear degree be 90~180 °.It is highly preferred that this is soft
Property cover board 12 around dog-ear degree be 60~180 °.It should be noted that flexible cover plate 12 shows around dog-ear degree for 120~180 °
The minimum of flexible cover plate 12 is 120 ° around dog-ear degree, minimum, the flexibility of flexible cover plate 12 smaller around dog-ear degree of flexible cover plate 12
Better.
It is appreciated that thickness is smaller, the requirement to manufacture craft is higher, in the present embodiment, clarity plastic layer 200
Thickness is equal to the thickness of transparent glass layer 100, and the sum of transparent glass layer 100 and the thickness of clarity plastic layer 200 are not less than
0.2mm is easier to which the formation of transparent glass layer 100 and clarity plastic layer 200 is all opposite.Preferably, clarity plastic layer 200
Thickness and the thickness of transparent glass layer 100 be 0.1mm, to the formation of transparent glass layer 100 and clarity plastic layer 200
It is all opposite to be easier to, and make flexible cover plate 10 that there is preferable bending performance.
Specifically, in the present embodiment, when making flexible cover plate 10, transparent glass layer 100 can be first made, then
Clarity plastic layer 200 is formed on transparent glass layer 100 by the way of coating；Transparent glass layer can also be first made respectively
100 and clarity plastic layer 200, then pass through and bond transition zone so that transparent glass layer 100 and clarity plastic layer 200 are fitted in one
It rises.
Clarity plastic layer 200 can be polyethylene terephthalate (Polyethylene terephthalate,
PET) layer, polyimides (Polyimide, PI) layer, makrolon (Polycarbonate, PC) layer, polymethyl methacrylate
(PolymethylMethacrylate, PMMA) layer, optical plastic (Cyclo-olefin polymer, COP) layer or cycloolefin
Copolymer (copolymers of cycloolefin, COC) layer.
Ink layer 300 is set to surface of the clarity plastic layer 200 far from transparent glass layer 100, and flexible cover plate 10 is divided
For visible area and non-visible area domain.
The main component of glass is that the main component of silicate namely glass is inorganic compound.The main component of plastics
It is organic compound for the main component of resin namely plastics.The main component resins of ink namely the main component of ink are
Organic compound.According to the similar principle that mixes, therefore, the adhesive force between ink layer 300 and clarity plastic layer 200 can be more than oil
Adhesive force between layer of ink 300 and transparent glass layer 100.Namely relative to traditional flexible cover plate, in above-mentioned flexible cover plate 10
Ink layer 300 be less susceptible to fall.
Further, in the present embodiment, surface of the clarity plastic layer 200 far from transparent glass layer 100 is through plasma
(plasma) treated function surface, ink layer 300 are set on function surface.Setting function surface can further increase oil
Adhesive force between layer of ink 300 and clarity plastic layer 200.
When due to forming ink layer 300 using the prior art, need that slimy ink is first set to clarity plastic layer 200
On, then through being dried, can just obtain ink layer 300.The slimy temperature of the ink of some kinds is usually 150~200
DEG C (also be high temperature ink), and the temperature being dried is higher, and it is shorter to complete dry process time.
Further, in the present embodiment, the thickness of ink layer 300 is 5~30 μm.Due to ink layer 300 thickness very
It is small, and it is located at non-visible area domain (fringe region), ink layer 300 influences very little to the whole bending performance of flexible cover plate 12,
Substantially can ignore.
Transparent glass layer 100 can high temperature resistant, and clarity plastic layer 200 is with respect to non-refractory, in order to enable convenient for forming oil
Layer of ink 300, the selection of traditional flexible cover plate forms ink layer on glassy layer, and is used to contact with finger with plastic layer.At this
In embodiment, in order to which high temperature ink is arranged on clarity plastic layer 200 and convenient for using high temperature and rapid drying ink, choosing
With high temperature resistant ink.Preferably, the heat distortion temperature of clarity plastic layer 200 is more than or equal to 150 °.
100 water absorption rate of transparent glass layer is low, and the water absorption rate of clarity plastic layer 200 is relatively high.When flexible cover plate 10 is answered
After in touch screen 10, before the manufacture of touch screen 10, need to carry out burn-in test to touch screen 10, the temperature of burn-in test is logical
Often greater than 80 DEG C.In burn-in test, if water content is larger in clarity plastic layer 200, steam can be remote from clarity plastic layer 200
The water vapor seal that surface from transparent glass layer 100 releases, and releases between clarity plastic layer 200 and OCA layers,
Atomization group, bubble etc. (forming delay bubble) can be formed in visible area, influence the appearance and light transmittance of touch screen 10.And
In traditional flexible cover plate, plastic layer is located at outside, and when aging, the steam that plastic layer releases can distribute.For
It solves the above problems, in the present embodiment, the water absorption rate of clarity plastic layer 200 is less than 1%.
Further, in the present embodiment, clarity plastic layer 200 is PI layers or PC layers, wherein PI layers of heat distortion temperature
More than 250 DEG C, the heat distortion temperature that PI layers of water absorption rate is 0.15%, PC layers is 130~140 DEG C, and PC layers of water absorption rate is
0.16%.Further, it is preferred that clarity plastic layer 200 is PI layers.
Further, in the present embodiment, film plating layer 400 is set to table of the transparent glass layer 100 far from clarity plastic layer 200
On face.Wherein, film plating layer 400 can be at least one of anti-finger print layer, antireflection layer and Bewildering resistance layer.Wherein, anti-finger print layer
Material is fluorine polymeric silicon compound；The material of antireflection layer can be high refractive index substance or low-refraction substance, specifically,
High refractive index substance is Ti3O5、Nb2O5Or Si3N4, low-refraction substance is SiO2。
The main component of glass is that the main component of silicate namely glass is inorganic compound.The main component of plastics
It is organic compound for the main component of resin namely plastics.The main component of film plating layer 400 be silicon-containing polymer or
Inorganic compound.According to the similar principle that mixes, therefore, the adhesive force between film plating layer 400 and transparent glass layer 100 can be more than plating
Adhesive force between film layer 400 and clarity plastic layer 200.Namely relative to traditional flexible cover plate, in above-mentioned flexible cover plate 10
Film plating layer 400 be less susceptible to fall.
Further, in the present embodiment, the thickness of film plating layer 400 is 20~200nm.Due to the thickness of film plating layer 400
Very little, film plating layer 400 influence very little to the whole bending performance of flexible cover plate 12, can ignore substantially.
(1) different-thickness flexible cover plate is made：
When making flexible cover plate, first make transparent glass layer, then by the way of coating on transparent glass layer shape
At clarity plastic layer, to obtain the flexible cover plate of respective thickness, wherein thickness measuring instrument is the MDC--25SX of Mitutoyo
Digital display outside micrometer.
(2) it is directed to the measurement that each piece of flexible cover plate is done：
Wherein, when the thickness of the transparent glass layer of flexible cover plate is 0.2mm, the thickness of clarity plastic layer is 0.1mm, flexible
The minimum bending angle of cover board is 120 °, the corresponding a diameter of 10mm of bending；
The thickness of the transparent glass layer of flexible cover plate shown in Fig. 2 is 0.1mm, and the thickness of clarity plastic layer is 0.2mm, soft
Property cover board minimum bending angle be 100 °, a diameter of 9mm of corresponding bending；
The thickness of the transparent glass layer of flexible cover plate shown in Fig. 3 is 0.1mm, and the thickness of clarity plastic layer is 0.1mm, soft
Property cover board minimum bending angle be 90 °, a diameter of 8mm of corresponding bending；
The thickness of the transparent glass layer of flexible cover plate shown in Fig. 4 is 0.05mm, and the thickness of clarity plastic layer is 0.05mm,
The minimum bending angle of flexible cover plate is 60 °, the corresponding a diameter of 5mm of bending.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of flexible cover plate, in touch screen, which is characterized in that the flexible cover plate includes the transparent glass being stacked
Layer and clarity plastic layer；
The transparent glass layer includes the first surface and second surface being oppositely arranged, and the first surface with finger for connecing
It touches；
The clarity plastic layer includes the third surface and the 4th surface being oppositely arranged, and the 4th surface is used for and the touch-control
The conductive film of screen connects；
Wherein, the thickness of the transparent glass layer is 0.05~0.2mm, and the thickness of the clarity plastic layer is 0.05~0.2mm,
And the sum of the transparent glass layer and the thickness of the clarity plastic layer are not more than 0.3mm.
2. flexible cover plate according to claim 1, which is characterized in that the thickness of the clarity plastic layer is equal to described transparent
The thickness of glassy layer, and the sum of the transparent glass layer and the thickness of the clarity plastic layer are not less than 0.2mm.
3. flexible cover plate according to claim 1, which is characterized in that a diameter of 5~30mm of bending of the flexible cover plate；
Alternatively, a diameter of 5~20mm of the bending of the flexible cover plate；
Alternatively, a diameter of 5~10mm of the bending of the flexible cover plate.
4. flexible cover plate according to claim 1, which is characterized in that the flexible cover plate around dog-ear degree be 120~
180°；
Alternatively, the flexible cover plate around dog-ear degree be 90~180 °；
Alternatively, the flexible cover plate around dog-ear degree be 60~180 °.
5. flexible cover plate according to claim 1, which is characterized in that the flexible cover plate further includes ink layer, the oil
Layer of ink is set on the 4th surface of the clarity plastic layer, and the flexible cover plate is divided into visible area and non-visible area
Domain.
6. flexible cover plate according to claim 5, which is characterized in that the thickness of the ink layer is 5~30 μm.
7. flexible cover plate according to claim 1, which is characterized in that the heat distortion temperature of the clarity plastic layer be more than etc.
In 150 °, the water absorption rate of the clarity plastic layer is less than 1%.
8. flexible cover plate according to claim 1, which is characterized in that the flexible cover plate further includes film plating layer, the plating
Film layer be set to the transparent glass layer first surface on, the film plating layer be anti-finger print layer, antireflection layer and Bewildering resistance layer in extremely
Few one kind.
9. flexible cover plate according to claim 8, which is characterized in that the thickness of the film plating layer is 20~200nm.
10. a kind of touch screen, which is characterized in that including：
Flexible cover plate as claimed in any one of claims 1-9 wherein；And
Conductive film for determining touch-control coordinate, the conductive film are set on the 4th surface of the clarity plastic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721763909.8U CN207690042U (en) | 2017-12-15 | 2017-12-15 | Touch screen and its flexible cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721763909.8U CN207690042U (en) | 2017-12-15 | 2017-12-15 | Touch screen and its flexible cover plate |
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| Publication Number | Publication Date |
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| CN207690042U true CN207690042U (en) | 2018-08-03 |
Family
ID=62997602
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| CN201721763909.8U Active CN207690042U (en) | 2017-12-15 | 2017-12-15 | Touch screen and its flexible cover plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192075A (en) * | 2018-10-30 | 2019-01-11 | 云谷（固安）科技有限公司 | Flexible cover plate and preparation method thereof |
-
2017
- 2017-12-15 CN CN201721763909.8U patent/CN207690042U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192075A (en) * | 2018-10-30 | 2019-01-11 | 云谷（固安）科技有限公司 | Flexible cover plate and preparation method thereof |
| CN109192075B (en) * | 2018-10-30 | 2022-01-25 | 云谷（固安）科技有限公司 | Flexible cover plate and preparation method thereof |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210425 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 330000 Jiangxi province Nanchang City Airport Economic Zone Confucianism Le Hu Street No. 399 Patentee before: NANCHANG OFILM OPTICAL TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |