CN206301308U - Display device with detachable layer - Google Patents
Display device with detachable layer Download PDFInfo
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- CN206301308U CN206301308U CN201621043291.3U CN201621043291U CN206301308U CN 206301308 U CN206301308 U CN 206301308U CN 201621043291 U CN201621043291 U CN 201621043291U CN 206301308 U CN206301308 U CN 206301308U
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- Prior art keywords
- layer
- window
- display device
- screen
- detachable layer
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Abstract
The utility model discloses a kind of display device with detachable layer, and it simplifies the manufacturing process of display device, and reduces manufacturing cost, can carry out design.The device includes:Window structure, the detachable layer that bonding force is 0.1gf/25mm to 500gf/25mm is previously formed in the touch-screen integrated with window;And display screen, for the detachable layer of window structure described in integral demounting, it is configured with the display screen so that reducing the viscose glue reduction layer with the bonding force of the detachable layer being previously formed in the touch-screen integrated with the window, removal stripping film and exposed detachable layer, be then attached to display screen.
Description
Technical field
The utility model is related to display device, relate more specifically to it is a kind of can by the window structure comprising touch-screen from
The display device of display screen dismounting.
Background technology
Liquid crystal display cells (LCD), Organic Light Emitting Diode (OLED), electrophoretic display device (EPD) (EPD) of display device etc.
Display screen forms picture.The display device is applied to various image frame devices.In addition, described device uses touch-screen, use
In the convenience for providing operation.In the window that the former configuration of touch-screen is made up of strengthened glass or transparent macromolecule resin etc..
Window makes image quality become distinct, also, protect display device from because external impact or contact and caused by damage.Window leads to
Transparent adhesive (OCA) or ultraviolet curing adhesive etc. is crossed to be bonded with touch-screen and fixed.Recently, with flexible and flexible
Display screen appearance, comply with its touch-screen and also occur therewith.
Fig. 1 and Fig. 2 is the sectional view of the representative illustration that outline shows the display device for being applicable existing touch-screen.This
When, the equipment that the display device includes shown plane, also including the equipment of bending.
Reference picture 1 and Fig. 2, existing display device have stack gradually touch-screen on the display screens such as LCD or OLED 1
2 and the structure of window 3.Adhesive layer 4 is formed entirely on Fig. 1 between display screen 1 and touch-screen 2 and touch-screen 2 and window 3.Also,
Adhesive layer 4 as in figure 1, can bond display screen 1 and touch-screen 2.The display device of Fig. 2 is formed below touch in window 3
The conductive pattern (not shown) of screen 2.Existing window 3 is high rigidity, and the relatively large ratio of display screen is accounted in terms of cost.
Need to realize the assembling of bubble-free for manufacturing existing display device.Because in the situation in the absence of bubble
Under, by refractive index and being minimized of reflectivity, so that, improve the brightness of display device.But because adhesive layer 4 causes for going
Except the technique of the bubble is very cumbersome.Specifically, it is uniform by spray regime and with fine spacing formation adhesive layer 4
Film, by being close to remove bubble removing with decompression.Afterwards, solidified by ultraviolet curing etc. and manufactured.Because of adhesive layer 4
Film must not exist bubble, it is, therefore, necessary to carefully carry out.Accordingly, for existing display device is manufactured, relatively
Ground, puts into expensive manufacturing equipment, also, cost is also high.More even, existing display device is because existing not enter normally largely
The situation of the bonding of row bubble-free, thus, fraction defective is also higher.
Also, existing display device, it is impossible to meet and disappear to the design such as shape, color, texture variation and fineness
The demand of the person of expense.Diversity for product, complicated manufacturing process and high cost are complying with the requesting party of the consumer
There is obstacle in face.And, because in the case where design is carried out, the manufacturing company of display device must set with described
Count correspondence and carry out after-sale service one by one.Therefore, currently, the window structure is designed by solid colors such as black or whites.
The content of the invention
Technical problem to be solved
The technical problems to be solved in the utility model is to provide a kind of display device with detachable layer, and it simplifies system
Make the technique of display device and reduce manufacturing cost, design can be carried out.
The technical scheme of solve problem
It is of the present utility model to include for solving the display device with detachable layer of technical problem:Window structure,
It is the detachable of 0.1gf/25mm to 500gf/25mm in the bonding force that is previously formed of the touch-screen integrally-formed with window
Layer;And display screen, it is capable of the detachable layer of window structure described in integral demounting.Also, configured on the display screen and be reduced
Viscose glue with the bonding force of the detachable layer reduces layer.
For device of the present utility model, the window is any one in glass substrate or plastic base.The window is
Hardened glass substrate or including polyethylene terephthalate (PET:Polyethylene terephthalate), poly- naphthalene two
Formic acid glycol ester (PEN:Polyethylene naphthalate), polyether sulfone (PES:Polyether sulfone), polyamides
Imines (PI:Polyimide), polyarylate (PAR:Polyarylate), makrolon (PC:Polycarbonate), poly- methyl
Methyl acrylate (PMMA:Polymethyl methacrylate) or olefin copolymer (COC:cycloolefin
Copolymer in the plastic base in) more than any one any one.
For preferred device of the present utility model, the detachable layer is to be mixed in acrylic polymer by from by crosslinking agent
Compound, organosilicon polymer, urethane based polymer, ultraviolet curing resin form adhesive or its mixture or its copolymer
It is middle to select any one.The detachable layer is the multilayer that individual layer or each layer are made up of mutually different material.
For device of the present utility model, the viscose glue reduces layer and is coated with fluororesin or silicones.The window structure
Different shapes, color, texture can be designed as.
Invention effect
Display device with detachable layer of the present utility model, by window structure of the dismounting comprising touch-screen, letter
Change the technique of manufacture display device and reduce manufacturing cost, carry out design and meet consumer demand.And, because
Anyone can easily replace window structure by dismounting, thereby, it is possible to expendable consumed product rather than be fixed on display
The mode of the necessity of screen device is processed.
Brief description of the drawings
Fig. 1 is the sectional view for example that outline shows the display device for being applicable existing touch-screen;
Fig. 2 is the sectional view of another example that outline shows the display device for being applicable existing touch-screen;
Fig. 3 is the sectional view for illustrating the first display device with detachable layer of the present utility model;
Fig. 4 is the sectional view for illustrating the second display screen device with detachable layer of the present utility model;
Fig. 5 is the sectional view for illustrating the 3rd display device with detachable layer of the present utility model;
Fig. 6 is the accompanying drawing of the outward appearance that outline shows the display device with detachable layer of the present utility model.
Description of reference numerals
10;Display screen 20;Touch-screen
30;Window 40,42;First and second detachable layer
50;Adhesive layer
60、62、64;First to the 3rd window structure
Specific embodiment
Below, the utility model preferred embodiment is specifically described referring to the drawings.Examples set forth below energy
Various other forms are enough deformed into, scope of the present utility model is not limited to embodiment described below.The utility model
Embodiment provided to be more particularly described the utility model to those of ordinary skill in the art.Also, in the accompanying drawings, film
The thickness in (layer, pattern) and region is shown by exaggeration, for obtaining accuracy.Also, it is in for mentioning film (layer, pattern)
' upper ' of other films (layer, pattern), ' top ', ' bottom ', the situation of ' one side ', it can be formed directly into other film (layer, figures
Case) or other films (layer, pattern) also can be between it.
Embodiment of the present utility model disclose it is a kind of by be formed with bonding force for 0.1gf/25mm to 500gf/25mm can
The window structure for dismantling layer is applied to display screen, simplifies the technique of manufacture display device and reduces the display screen dress of manufacturing cost
Put.Now, the window structure is to be formed with dismountable detachable layer on a display screen.Therefore, removably set by bonding
Standby referred to as display screen.Detachable layer of the present utility model is defined in display screen detachably, clearly detachable with existing window
Window protection film distinguish.
Display device suitable for embodiment of the present utility model refers to portable equipment, information processing terminal device and electricity
Depending on etc. all image processing arrangements.The portable equipment such as mobile phone, smart mobile phone, panel computer etc., described information treatment is eventually
End equipment includes ATM, kiosks (kiosk) etc..The display device includes the device of plane or bending, with flexible
(flexible) property.The image processing arrangement includes window, touch-screen and display screen.Therefore, the window refers to portable setting
The window of all image processing arrangements such as standby window, the window of information processing terminal device, TV.Similarly, the touch
Screen and display screen refer to the touch-screen and display screen suitable for all image processing arrangements.
Embodiment of the present utility model, it is preferable that the bonding force of detachable layer is about 0.1gf/25mm to 500gf/25mm,
It is highly preferred that being 0.2gf/25mm to 50gf/25mm.Common bonding force i.e. 1,500gf/ of existing adhesive layer is less than because of it
25mm, and distinguished with existing adhesive layer.Here, detachable layer of the present utility model is optically transparent, it is applicable by heat
Reason (heat treatment) or the adhesive of UV (ultraviolet) solidifications.The adhesive passes through in the temperature and time of regulation
When heat treatment or UV are processed, semi-solid state is cured as.For bonding mode, consumer also can be easy with handwork
Stratum merging does not produce bubble.
The detachable layer can be used in many ways in technological thought of the present utility model, but be third preferably
Alkene acids polymers, organosilicon polymer, urethane based polymer, ultraviolet curing resin and crosslinking agent mix adhesive
Or its mixture or its copolymer.According to circumstances, the work(such as silica gel, nano-particle and antistatic additive are mixed on the detachable layer
Energy property material, it is also possible to improve the substance characteristics of the detachable layer.And, constitute quantum dot in the detachable layer addition
The particle of (quantum dot) and improve optical characteristics.
The window structure is can be in the window structure of display screen dismounting.Embodiment of the present utility model discloses suitable
With the example of the display device of the window structure, but can also be applied to other forms in the range of the utility model
Display device.Window structure of the present utility model is individually manufactured, and is dismantled on the display screen.The window structure
Attachment can be carried out by handwork.
Fig. 3 is for illustrating first display screen of the embodiment of the present utility model comprising dismountable first window structure 60
Device 100.But, and non-display tight meaning sectional view, for convenience of description, the also structure including being not shown on sectional view
Key element.
According to Fig. 3, the first display device 100 stacks gradually display screen 10, the first detachable layer 40, touch-screen 20, glue
Adhesion coating 50 and window 30.Now, window 30, adhesive layer 50,20 and first detachable layer of touch-screen 40 constitute first window structure
60.Display screen 10 includes liquid crystal display cells (LCD), Organic Light Emitting Diode (OLED), electrophoretic display device (EPD) (EPD) etc., also can
Enough use quantum dot.Adhesive layer 50, as a example by using Thermocurable adhesive or ultraviolet curing shape adhesive.But, do not limit
In this, it is also possible to use OCA adhesive tapes etc..Touch-screen 20 is in the side of the insulating barrier being made up of metal oxide or plastics or two
Side forms conductive pattern.In the main suitable metal oxide of the conductive pattern, there is indium tin oxide on an metal oxide
Transparent conductive semiconductor film (ITO), tin-antiomony oxide (ATO), zinc oxide (ZnO) etc. or copper (Cu), electroconductive polymer or silver are received
Rice electric wire etc..
It is unrestricted to use when window 30 is transparent material.For example, including glass substrate or plastic base.Specifically
Ground, glass substrate is strengthened glass, and plastic base includes PET (polyethylene terephthalate), PEN
(polyethylene naphthalate)、PES(polyether sulfone)、PI(polyimide)、PAR
(polyarylate), PC (polycarbonate), PMMA (polymethyl methacrylate) or COC
In (cycloolefin copolymer) any one or any one more than.
Window 30 has printing layer that is transparent but realizing various functions.The printing layer is applicable transparent, translucent or colour
Deng the coating more than any one or any one.The printing layer by silk-screen printing or using ultraviolet (UV) ink jet printing or
Formed using the ink jet printing of heat cure or using transfer.Resistance and fingerprint resistance coating or antimicrobial coating, scratch resistant are formed on window 30
The functional coats such as coating.The functional coat is applied by smearing the wet type of coating liquid and the dry type such as deposition is applied and formed.
Also, assigned in the glass substrate of window 30 or the lower end of plastic base and cover, prevent from reflecting, cutting off blue light (blue
Light), the characteristic such as cut-out electromagnetic wave, privacy (privacy).Also, formed on window 30 for exposed button, camera,
The opening portion (opening) of loudspeaker etc..
First window structure 60 can be dismantled by the first detachable layer 40 in display screen 10.In the first detachable layer 40
It is removed in the state of stripping film, can be dismantled in display screen 10.Thus, the first detachable layer 40 refers to be bonded in display screen
10.First detachable layer 40 can be used when being transparent material, or be that crosslinking agent is mixed in into acrylic polymer, organic
Silicon polymer, urethane based polymer, the adhesive of ultraviolet curing resin or its mixture or its copolymer.First can
Dismounting layer 40 is configured to individual layer, or every layer of multilayer being made up of mutually different material.Multilayer is according to using the utility model
The first detachable layer 40 environment, and suitably select to constitute the material of each layer.The thickness of the first detachable layer 40 is to expire
The degree that foot is fully bonded, it is preferable that be 10 μm to 200 μm.It is to be appreciated that the thickness is neck belonging to the utility model
Domain those of ordinary skill can be obtained by repetition test.
In addition, for easily disassembled first window structure 60, viscose glue being reduced into layer 70 and being added on display screen 10.Viscose glue subtracts
Thus few layer 70, increases sliding (slip property) because of increase contact angle.Layer 70 is reduced by viscose glue so that the first window
Mouth structure 60 can be dismantled easily to display screen 10.Viscose glue reduces layer 70 and uses fluororesin or the coating material of silicones.
It is by titanium dioxide (TiO that viscose glue reduces layer 702) or silica (SiO2) be deposited on after window 30, in the window of deposition
Silicones or silica resin are applied on 30 and formed.Now, fluororesin or silica resin press coating (ECC easy to clean:
Easy Cleaning Coating) mode formed.In the case where applicable viscose glue reduces layer 70, when being adhered to, in attachment window
During mouth 30, can more effectively suppress to produce bubble.Also, layer 70, consumer's energy without other instrument are reduced by viscose glue
It is enough to be voluntarily easily removed first window structure 60.
In the case where the bonding force of the first detachable layer 40 is about 0.1gf/25mm to 500gf/25mm, detachable layer 40
With magnetic bonding force.Even if the first detachable layer 40 is being placed into touch-screen 20 by the magnetic bonding force, detachable layer 40 has
The property voluntarily pasted and do not produce bubble.In addition, when viscose glue reduces layer 70 and is applied to touch-screen 20, subtracting with the absence of viscose glue
The situation of few layer 70 is compared, with stronger magnetic bonding force.
The bonding force of embodiment of the present utility model according to viscose glue reduce layer 70 presence, bonding force and it is different.In the presence of viscous
The bonding force that glue reduces in the case of layer 70 is 0.5gf/25mm to 500gf/25mm.It is assumed that reducing layer 70 in the absence of viscose glue
When, the bonding force is 0.1gf/25mm to 200gf/25mm.When there is the detachable layer 40 of identical material and thickness, deposit
Layer 70 is reduced in viscose glue, can easily adhere to first window structure 60 without producing bubble.Also, because viscose glue reduces layer 70
Influence, is relatively easily separated from first window structure 60.
First window structure 60 of the present utility model is manufactured in addition, is protected by stripping film.Removal glass film, with
In first window structure 60 is attached into display screen 10.When stripping film is removed, exposed first detachable layer 40.Will be exposed
When the first window structure 60 for going out the first detachable layer 40 is attached to display screen 10 by handwork, completion is provided with window 30
Display screen.Thus, with current difference, without accurate adhesion technique.Also, when first window structure 10 occurs damaged or carries out
During replacing, first window structure 60 is separated by handwork, and adhere to new first window structure 60.
Fig. 4 is the including dismountable second window structure 62 second display for illustrating embodiment of the present utility model
The sectional view of screen device 200.But, the sectional view of tight meaning is not shown, for convenience of description, it is also included within sectional view and does not show
The inscape shown.Now, second display screen device 200 is with the second detachable layer 42 in addition to replacing adhesive layer 50, with the
One display device 100 is identical.Below, the item for being repeated with the above is omitted or briefly described.
According to Fig. 4, display screen 10, the first detachable layer 40, touch-screen are stacked gradually on second display screen device 200
20th, the second detachable layer 42 and window 30.Now, window 30, the second detachable layer 42, the detachable layer 40 of touch-screen 20 and first
Constitute the second window structure 62.Second window structure 62 is dismantled by the first detachable layer 40 in display screen 10.First is removable
Layer 40 is unloaded in the state of stripping film is removed, display screen 10 can be attached to.Also, the second window structure 62 can by second
Dismantle layer 42 and dismantled in touch-screen 20.In other words, the second window structure 62 has to enter in display screen 10 and touch-screen 20 respectively
The first detachable layer 40 and the second detachable layer 42 of row dismounting.
First and second detachable layer 40,42 can be used for transparent material, or be that crosslinking agent is mixed in into acrylic acid
Birds of the same feather flock together compound, organosilicon polymer, urethane based polymer, the adhesive of ultraviolet curing resin or its mixture or its
Copolymer.First and second detachable layer 40,42 is respectively individual layer, or every layer be the multilayer that is made up of mutually different material or
At least one is individual layer.Multilayer according to respectively use first and second detachable layer 40,42 of the present utility model environment, suitably
Selection constitutes the material of each layer.First and second detachable layer 40,42 respective thickness are to meet fully constitute bonding
Degree, it is preferable that be 10 μm to 200 μm.It should be appreciated that the thickness is the utility model those of ordinary skill in the art
Can be obtained by repetition test.
Although not shown, but first and second window structure 60,62 of embodiment of the present utility model window 30 and second
Any or all between detachable layer 42 or between the detachable layer 40 of touch-screen 20 and first also includes assigning various work(
The additional element of energy.The additional element includes transparent adhesive layer (OCA), anti-scattering layer etc., according to circumstances, has been suitably formed print
Brush layer and functional coat.For example, the transparent adhesive layer comprising printing layer is formed at into touch-screen 20, and adhering to transparent synthesis
After resin film (for example, PET film), the first detachable layer 40 is formed in the lucite film.This is added will
What element had been known, thus, omission is illustrated to it.
Fig. 5 is the 3rd display including dismountable 3rd window structure 64 for illustrating embodiment of the present utility model
The sectional view of screen device 300.But, and non-tight meaning sectional view, for convenience of explanation, be also included within sectional view and do not show
Structural element.Now, the 3rd display device 300 is in addition in the absence of adhesive layer 50, with the phase of the first display device 100
Together.Thus, omit illustrating for identical reference marks.Now, on the 3rd window structure 64, also such as first window knot
Shown in structure 60 shows, also including additional element.
According to Fig. 5, the 3rd display device 300 is laminated with display screen 10, the first detachable layer 40, touch-screen 20 and window
30.Now, window 30,20 and first detachable layer of touch-screen 40 constitute the 3rd window structure 64.Here, touch-screen 20 is in window
30 bottom is formed directly with conductive pattern.That is, touch-screen 20 is constituted together with the conductive pattern of window 30 is formed at.First can
Dismounting layer 40 can be used for transparent material, or crosslinking agent is gathered with acrylic polymer, organosilicon polymer, urethane system
Adhesive or its mixture or its copolymer that compound, ultraviolet curing resin are mixed.First detachable layer 40 is formed
It is individual layer, or every layer of multilayer being made up of mutually different material.Multilayer is according to the of the present utility model first detachable layer of use
40 environment, appropriate selection constitutes the material of each layer.The thickness of the first detachable layer 40 disclosure satisfy that the journey for fully being bonded
Degree, it is preferable that be 10 μm to 200 μm.It should be appreciated that ordinary skill people of the thickness for the utility model art
Member can be obtained by repetition test.
3rd display device 300 reduces layer 70 as the first display device 100 with viscose glue.Viscose glue reduces layer
70 material, function etc. and the first display device 100 are illustrated.The bonding force of embodiment of the present utility model is according to viscose glue
The presence of layer 70 is reduced, and bonding force is different.Exist viscose glue reduce layer 70 situation bonding force for 0.5gf/25mm extremely
500gf/25mm, but it is 0.1gf/25mm to 200gf/25mm that the bonding force of the situation of layer 70 is reduced in the absence of viscose glue.Exist
During the detachable layer 40 of identical material and thickness, in the case where there is viscose glue reduction layer 70, easily adhere to the second window knot
Structure 80 is without producing bubble.Also, the influence of layer 70 is reduced because of viscose glue, the second window structure 80 is relatively easily separated from.
In the case where the bonding force of the first detachable layer 40 is about 0.1gf/25mm to 500gf/25mm, detachable layer 40
With magnetic bonding force.For the magnetic bonding force, even if detachable layer 40 is only placed into touch-screen shell 22, first is detachable
Layer 40 also has the property voluntarily pasted without producing bubble.In addition, being applied to touch-screen shell 22 when viscose glue is reduced into layer 70
When, compared with the situation for reducing layer 70 in the absence of viscose glue, with stronger magnetic bonding force.
When the first to the 3rd window structure 60,62,64 are applicable, in display screen 10 and each predetermined region of touch-screen 20
Grounding parts are manufactured in an opposing fashion.In order to manufacture grounding parts, a part for the first detachable layer 40 of touch-screen 20 is removed.
When the first to the 3rd window structure 60,62,64 is attached into display screen 10, the grounding parts are connected with each other.Hereby it is achieved that the
The ground connection of one to the 3rd display device 100,200,300.
The display device of embodiment of the present utility model window structure occur breakage in the case of, in new window knot
Changed when being selected in structure and adhered to.Specifically, the damaged window structure is separated, is carried out when adhering to new window structure
Change.The Renewal process of window structure also can directly be performed by consumer, and the time needed for changing is very short.Also, because only
Removal window structure, is easy to the re-using of display device.And, because window structure is dismantled by bonding, can be easy
Bubble-freely adhered to.Manufacturer when the part in addition to the window structure is only manufactured, because not carrying out adhesion technique, from
And, simplify manufacturing process.
Fig. 6 is the outward appearance of the display device including dismountable window for simply showing embodiment of the present utility model
Accompanying drawing.Now, the display device is only illustrated portable equipment, comprising described above, in skill of the present utility model
Other forms can be applicable in the range of art thought.
As shown in drawings, for display device of the present utility model, can differently be designed.It is of the present utility model
Display device can be the design such as beautiful shape, shades of colour and texture.Because separating original window structure, attachment
During new structure, the outward appearance of window structure is changed into required design.Currently for design for change, it is necessary to remove window structure
Bonding, and new window structure is bonded again.But, for display device of the present utility model, when tearing existing window knot
Structure, and when adhering to new window structure, design for change.Thus, window structure of the present utility model and current difference, and on-fixed
In the necessity of display device, as needed, used as the running stores that can be dismantled.Method as described above, when carrying out
During various designs, the manufacturer of display device carries out after-sale service one by one without the correspondence design.
To sum up, the utility model is specifically described by taking preferred embodiment as an example, but the utility model is not limited
In the embodiment, in the range of technological thought of the present utility model, those of ordinary skill in the art can carry out various modifications.
For example, the other devices such as homepage (home) are provided on the moulding of display device, to be easier dismounting window structure.
Claims (4)
1. a kind of display device with detachable layer, it is characterised in that
Including:
Window structure, is 0.1gf/25mm's to 500gf/25mm in the bonding force that is previously formed of the touch-screen integrated with window
Detachable layer;And
Display screen, the detachable layer of window structure described in integral demounting,
Be configured with the display screen so that reduce the touch-screen integrated with the window be previously formed with it is described
The viscose glue of the bonding force of detachable layer reduces layer.
2. the display device with detachable layer according to claim 1, it is characterised in that
The window is any one in glass substrate or plastic base.
3. the display device with detachable layer according to claim 1, it is characterised in that
The detachable layer is individual layer or every layer of multilayer being made up of mutually different material.
4. the display device with detachable layer according to claim 1, it is characterised in that
The viscose glue reduces layer and is coated with fluororesin or silicones.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621043291.3U CN206301308U (en) | 2016-09-07 | 2016-09-07 | Display device with detachable layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621043291.3U CN206301308U (en) | 2016-09-07 | 2016-09-07 | Display device with detachable layer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206301308U true CN206301308U (en) | 2017-07-04 |
Family
ID=59202909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201621043291.3U Expired - Fee Related CN206301308U (en) | 2016-09-07 | 2016-09-07 | Display device with detachable layer |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206301308U (en) |
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2016
- 2016-09-07 CN CN201621043291.3U patent/CN206301308U/en not_active Expired - Fee Related
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