CN109298478A - A kind of polaroid and preparation method thereof, display panel and display device - Google Patents
A kind of polaroid and preparation method thereof, display panel and display device Download PDFInfo
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- CN109298478A CN109298478A CN201710606696.6A CN201710606696A CN109298478A CN 109298478 A CN109298478 A CN 109298478A CN 201710606696 A CN201710606696 A CN 201710606696A CN 109298478 A CN109298478 A CN 109298478A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
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Abstract
The embodiment of the invention discloses a kind of polaroid and preparation method thereof, display panel and display devices, the polaroid includes two layers of release film layer, and multiple film layers between two layers of release film layer are set, glue-line is provided between two layers of release film layer and adjacent film layers, wherein, at least one layer of glue-line is that water oxygen obstructs glue.Polaroid provided in an embodiment of the present invention and preparation method thereof, display panel and display device can reduce the thickness and its preparation cost of display device, further increase the binding yield of display device.
Description
Technical field
The present embodiments relate to technical field of display panel more particularly to a kind of polaroid and preparation method thereof, display
Panel and display device.
Background technique
Organic light emitting display (Organic Light Emitting Display, OLED) is fast with reflection, colour gamut is wide,
It is frivolous, be able to achieve the features such as flexibility, and be widely used in display field.But since OLED is for steam in environment and oxygen
It is very sensitive, it is easy for being oxidized or crystallize if organic material used in OLED device is exposed in external environment,
To seriously affect the performance of OLED device.Therefore, it is necessary to effectively be encapsulated to OLED device, make each functional layer of OLED
The ingredients such as steam, the oxygen in atmosphere are not contacted.
Currently, being mainly the mode of glass cover encapsulation to the mode of OLED encapsulation, to prevent the erosion of water oxygen, but use
OLED after glass cover encapsulation cannot achieve bending even bending display.Meanwhile being usually arranged in existing OLED display
There is the polaroid eliminated environment shadow sound and improve contrast.And the polaroid need with OLD device and touch module into
Row fitting.Thus, in the prior art, by carrying out the oxygen protective film that blocks water again after carrying out thin-film package to OLED display device
It pastes, and is reflected to drop low ambient light and reduced and display contrast and visual by OLED display device, in the oxygen film that blocks water
Paste after also need to paste rotatory polarization piece again.
It can be seen from the above, existing packaging method needs to carry out secondary fitting for flexible OLED display part, it may appear that
The problems such as technique is cumbersome, cost increases, and secondary fitting can make flexible device thickness thicken, the problem for causing curling difficult.
Summary of the invention
For above-mentioned there are problem, the object of the present invention is to provide a kind of polaroid and preparation method thereof, display panel and
Display device, to solve big, the at high cost and low binding yield technical problem of flexible display apparatus thickness in the prior art.
In a first aspect, the embodiment of the invention provides a kind of polaroids, comprising:
Two layers of release film layer, and the multiple film layers being arranged between two layers of release film；
Glue-line is provided between the release film and adjacent film layers, at least one layer of glue-line is that water oxygen obstructs glue.
Optionally, the water oxygen barrier glue includes optical cement and high molecular hydrophobic material；
Water oxygen barrier glue with a thickness of 20 μm~100 μm.
Optionally, the glue-line is water oxygen barrier glue.
Optionally, the multiple film layer includes the compensation film being sequentially stacked, polarizing layer and protective layer.
Optionally, the protective layer includes triacetate fiber cellulosic material；
The protective layer with a thickness of 10 μm~30 μm.
Optionally, the compensation film is one of four parts slides.
Optionally, the compensation film includes polycarbonate, Triafol T, one in polyethylene terephthalate
Kind or several combinations；
The compensation film with a thickness of 40 μm~50 μm.
Second aspect, the embodiment of the invention also provides a kind of preparation methods of polaroid, comprising:
Two layers of release film layer is provided, forms multiple film layers between two layers of release film layer；
Glue-line is provided between the release film and adjacent film layers, at least one layer of glue-line is that water oxygen obstructs glue.
It is optionally, described to form multiple film layers between two layers of release film layer, comprising:
Compensation film, polarizing layer and protective layer are sequentially formed between two layers of release film.
Optionally, the preparation method of the multiple film layer includes takeup type or surface coating.
The third aspect, the embodiment of the invention also provides a kind of display panels, including array substrate, luminescence unit, encapsulation
Layer and above-mentioned polaroid.
Fourth aspect, the embodiment of the invention also provides a kind of display devices, including above-mentioned display panel.
The embodiment of the invention provides a kind of polaroid and preparation method thereof, display panel and display device, the polaroids
Including two layers of release film, and the multiple film layers being arranged between two layers of release film layer, and the release film layer and adjacent film
Glue-line is provided between layer, at least one layer of glue-line is that water oxygen obstructs glue.Polaroid provided in an embodiment of the present invention is able to solve existing
Having is to make the luminescence unit of display panel not by the erosion of steam and oxygen in technology, need to be arranged water oxygen barrier layer, and
When polaroid and display panel etc. are bonded, it may appear that secondary fitting reduces the binding yield of display panel.The embodiment of the present invention mentions
Polaroid of confession and preparation method thereof, display panel and display device can reduce the thickness of display device and its be prepared into
This, further increases the binding yield of display device.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of polaroid provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another polaroid provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of polarisation piece preparation method provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
The embodiment of the present invention provides a kind of polaroid, which can be applied in flat-panel monitor, to promote display
Display quality.Fig. 1 is a kind of structural schematic diagram of polaroid provided in an embodiment of the present invention.As shown in Figure 1, polaroid 100
Including two layers of release film 11 and 12, film layer 20 is provided between two layers of release film；Release film 11 and 12 respectively with film layer 20 it
Between be provided with glue-line 31 and 32, wherein at least one layer of glue-line is that water oxygen obstructs glue in glue-line 31 and 32.
When polaroid is applied to display panel, need by the display base plate in polaroid and display panel using glue-line into
Row fitting, so that the straight line that when display panel carries out display work, luminescence unit incidence in display panel is come for polaroid
The ingredient of light polarisation is separated, and passes through a portion light, and another part light then passes through absorption, reflection, scattering etc.
Effect and it is hidden, so that the light that luminescence unit issues in the display panel made carries out color separation decompression, and then control the display panel
Image display effect.Wherein, the luminescence unit in display panel is generally susceptible to the erosion of steam or oxygen in environment, because
And it needs that the film layer for preventing steam and oxygen from corroding luminescence unit is arranged in display panel.In the prior art, it is usually sending out
One layer of water oxygen barrier layer is set again on the encapsulated layer of light unit, is provided with glue-line between the water oxygen barrier layer and encapsulated layer, so that
The two can fit together, and when polaroid is bonded with display base plate is also required to that corresponding glue-line is arranged, and thus can produce
The phenomenon that raw repeatedly fitting, influence the binding yield of display panel.
Refering to what is shown in Fig. 1, polaroid 100 provided in an embodiment of the present invention includes two layers of release film 11 and 12, and it is located at
Film layer 20 between two layers of release film 11 and 12, film layer 20 can carry out the multiple of polarizations for realization 100 pairs of light of polaroid
Film layer, and glue-line 31 and 32 is provided between release film layer 11 and 12 and adjacent film layer, and will wherein at least one layer of glue-line
It is set as water oxygen barrier glue.The main function of release film layer 11 and 12 is protection glue-line 11 and 12, which for example can be pressure
Quick glue etc..And water oxygen barrier glue can meet polaroid and be bonded demand with display base plate in display panel, that is, meet pressure-sensitive
The performance of glue can also stop the erosion of steam and oxygen to luminescence unit in display panel.In addition, polaroid has certain light
Permeability, so the water oxygen barrier glue in polaroid also needs have translucency and excellent bonding property.
It is to make the luminescence unit of display panel not that polaroid provided in an embodiment of the present invention, which is able to solve in the prior art,
By the erosion of steam and oxygen, water oxygen barrier layer need to be set, and when polaroid and display panel etc. are bonded, it may appear that secondary
Fitting, reduces the binding yield of display panel.And polaroid provided in an embodiment of the present invention can be by being arranged in polaroid
Water oxygen obstructs glue, the film layer setting of display panel is reduced, to reduce each film layer in the thickness and display panel of display panel
Between fitting number, further increase the binding yield of display panel.In addition, water oxygen barrier glue, which has, stops steam and oxygen
Erosion to luminescence unit in display panel, it is thus possible to save being separately provided for water oxygen barrier layer in display panel, reduce aobvious
Show the preparation cost of panel.
Shown in continuing to refer to figure 1, at least one layer of glue-line 31 and 32 being arranged between film layer 20 and release film layer 11 and 12 is
Water oxygen obstructs glue, wherein and at least one layer of meaning, which can be in glue-line 31 and 32, wherein obstructs glue for water oxygen for one layer, and in addition one layer
For corresponding pressure sensitive adhesive etc., being also possible to glue-line 31 and 32 is water oxygen barrier glue, and two layers of water oxygen barrier glue is all satisfied polarisation
Piece is bonded demand with substrates other in display panel, and steam and oxygen can also be stopped to invade luminescence unit in display panel
Erosion, meanwhile, have translucency and excellent bonding property.The water oxygen barrier glue constituent for example may include optical cement and
Macromolecule water delivery materials, wherein characteristics that optical cement has that colorless and transparent, light transmission rate is high, cementing strength is good etc., and macromolecule
Water delivery materials can stop erosion of the steam to luminescence unit.
Further, since slimming display panel demand increasingly increase, thus in display panel polaroid should also meet it is thin
The requirement of type.Water oxygen barrier glue in polaroid can be realized the dual function of block water oxygen and fitting, but not influence partially
The translucidus of mating plate and slimming, should be arranged the thickness of reasonable water oxygen barrier glue, which obstructs the thickness of glue for example can be with
It is 20 μm~100 μm.
The main function of polaroid is to make to become polarised light by the natural light of polaroid, thus need setting phase in polaroid
The film layer answered, to realize this function.Fig. 2 is the structural schematic diagram of another polaroid provided in an embodiment of the present invention.With reference to Fig. 2 institute
Show, polaroid 100 includes two layers of release film layer 11 and 12, and the multiple films being set between two layers of release film layer 11 and 12
Layer, plurality of film layer are respectively compensation film 21, polarizing layer 22 and the protective layer 23 being sequentially stacked.In addition, release film 11 with
It is provided with glue-line 31 between protective layer 23, glue-line 32 is provided between release film 12 and compensation film, and in glue-line 31 and glue-line 32
At least one layer obstructs glue for water oxygen, i.e. one of glue-line 31 and glue-line 32 obstructs glue or glue-line 31 and glue-line 32 for water oxygen
Glue is obstructed simultaneously for water oxygen.It is illustrated so that glue-line 31 and glue-line 32 are all water oxygen barrier glue as an example herein.
Polarizing layer 22 in polaroid 100 is the chief component of polaroid 100, and which determine the inclined of polaroid 100
Optical property and transmitance, while also the tone of polaroid and optical durability are had an impact.Wherein the material of polarizing layer 22 can
It is selected as polyvinyl alcohol.But usually polarizing layer easily hydrolyzes, in order to protect the physical characteristic of polarizing layer, therefore the one of polarizing layer
There is compound one layer of side high light transmission rate, water-tolerant to have the film of certain mechanical strength to be protected again, i.e. protective layer 23.It protects
Sheath 23 is chosen as with optical homogeneity and the good Triafol T of the transparency.It can not only using Triafol T
Completely cut off the erosion of moisture and air to polarizing layer 22, while can also have ultraviolet isolation and anti-dazzle function.Wherein, the thickness of protective layer
Degree is chosen as 10 μm~30 μm, to meet actual demand.
In general, polarizing layer 22 and protective layer 23 can form the raw sheet of polaroid 100, but to meet the needs of display, also
One layer of compensation film 21 is set by certain phase difference offset.In the embodiment of the present invention, compensation film 21 is chosen as a quarter
Slide, so that compensation film 21 is combined with polarizing layer 22 constitutes rotatory polarization piece.The compensation film 21 can be by polycarbonate, triacetate fiber
The combination of one or more of element, polyethylene terephthalate's material is constituted, and thickness is chosen as 40 μm~50 μm.
On the basis of the embodiments of the present invention, the embodiment of the invention also provides a kind of preparation methods of polaroid.
This method and forms multiple film layers by providing two layers of release film layer between two layers of release film layer, and release film layer with it is adjacent
Film layer between be provided with glue-line, wherein at least one layer of glue-line be water oxygen obstruct glue.Fig. 3 is provided in an embodiment of the present invention one
The flow chart of kind polarisation piece preparation method.Correspondingly, refering to what is shown in Fig. 3, the preparation side of polaroid provided in an embodiment of the present invention
Method includes:
S310, two layers of release film layer is provided.
Illustratively, polaroid is capable of the absorption of light vibration selectivity to different defence lines, so that the light for passing through polaroid
There are a special direction, the i.e. polarization direction of polaroid.It is when a branch of natural lighting is mapped on polaroid, with the polarization
The vertical light vibration component in direction is absorbed completely, and will pass through polarisation with the light vibration component for being parallel to polarization direction
Piece.Polaroid in display panel can generate the effect of polarization to the light that luminescence unit in display panel issues, and aobvious
Show in the processing procedure of panel, need to provide two layers of release film layer for polaroid, to meet the needs of subsequent fitting.Herein, it is provided
Two layers of release film layer the technique of coating, spray or printing can be used be made.
S320, multiple film layers are sequentially formed between two layers of release film layer, and between release film layer and adjacent film layer
Glue-line is set.
Illustratively, the major part of polaroid is made of multiple film layers, thus polaroid is alternatively referred to as a kind of artificial membrane
Piece.Release film layer provides fitting demand for the processing procedure of subsequent display panel in polaroid, and needs to set between two layers of release film
Multiple film layers are set, to meet the polarization of polaroid.Multiple film layer is chosen as compensation film, polarizing layer and protective layer.Its
In, the main film layer of its polarization is polarizing layer in polaroid, and protective layer then is used to protect the physical characteristic of polarizing layer.Together
When, to meet practical polarisation demand, one layer of compensation film compensated according to certain offset angle to light is set.Multiple film layer
Preparation process be chosen as takeup type or surface coating.In addition, also needing to be arranged between two layers of release film layer and adjacent film layer
Glue-line, so that its fitting demand for meeting subsequent display panel.Wherein, which is chosen as at least one layer of being that water oxygen obstructs
Glue.By at least one layer in glue-line be set as water oxygen barrier glue, can under the premise of meeting fitting demand so that polaroid with
Protect the luminescence unit in display panel not by the erosion of steam in environment and oxygen after display panel fitting.
The preparation method of polaroid provided in an embodiment of the present invention, which passes through, provides two layers of release film layer, and in two layers of release film
Multiple film layers are formed between layer, and glue-line is set between two layers of release film layer and adjacent film layer, wherein at least one layer of glue-line is
Water oxygen obstructs glue, to solve to need to independently form water oxygen barrier layer in the processing procedure of display panel in the prior art, increases fitting time
The technical issues of counting, the binding yield of display panel caused to reduce, and making the increase of display panel thickness.In the embodiment of the present invention
Glue-line is set between release film layer and adjacent film layers, and sets water oxygen barrier glue at least one layer of glue-line, to improve aobvious
Show the binding yield in panel processing procedure, reduces the thickness and preparation cost of display panel.
The embodiment of the invention also provides a kind of display panel, which may include display area and shows around this
Show the non-display area in region, wherein for showing the information such as image, text, non-display area mentions for display area for display area
For showing signal accordingly.Fig. 4 is the structural schematic diagram of display panel provided in an embodiment of the present invention.Refering to what is shown in Fig. 4, display
Panel 200 includes array substrate 30, luminescence unit 40, encapsulated layer 50 and polaroid provided in an embodiment of the present invention 100.
Polaroid 100 in display panel 200 can generate polarization to the light that luminescence unit issues, to meet reality
Display demand.At least one layer of in glue-line between two layers of release film layer being arranged in polaroid 100 and adjacent film layers is water oxygen
Glue is obstructed, so as to play the erosion for protecting the luminescence unit in display panel 200 40 not by steam and oxygen, while can
The fitting number in display panel 200 between each film layer is reduced, to improve the binding yield of display panel 200, reduces display
The thickness and preparation cost of panel 200.
The embodiment of the invention also provides a kind of display device, Fig. 5 is the knot of display device provided in an embodiment of the present invention
Structure schematic diagram.Refering to what is shown in Fig. 5, display device 300 includes display panel 200 provided in an embodiment of the present invention.The display device
300 are specifically as follows the terminal devices such as mobile phone, computer, TV.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (12)
1. a kind of polaroid characterized by comprising
Two layers of release film layer, and the multiple film layers being arranged between two layers of release film layer；
Glue-line is provided between the release film layer and adjacent film layers, at least one layer of glue-line is that water oxygen obstructs glue.
2. polaroid according to claim 12, which is characterized in that the water oxygen barrier glue includes optical cement and macromolecule
Hydrophobic material；
Water oxygen barrier glue with a thickness of 20 μm~100 μm.
3. polaroid according to claim 1, which is characterized in that the glue-line is water oxygen barrier glue.
4. polaroid according to claim 1, which is characterized in that the multiple film layer include the compensation film being sequentially stacked,
Polarizing layer and protective layer.
5. polaroid according to claim 4, which is characterized in that the protective layer includes triacetate fiber cellulosic material；
The protective layer with a thickness of 10 μm~30 μm.
6. polaroid according to claim 4, which is characterized in that the compensation film is one of four parts slides.
7. polaroid according to claim 6, which is characterized in that the compensation film includes polycarbonate, triacetate fiber
The combination of one or more of element, polyethylene terephthalate；
The compensation film with a thickness of 40 μm~50 μm.
8. a kind of preparation method of polaroid characterized by comprising
Two layers of release film layer is provided, forms multiple film layers between two layers of release film layer；
Glue-line is provided between the release film layer and adjacent film layers, at least one layer of glue-line is that water oxygen obstructs glue.
9. preparation method according to claim 8, which is characterized in that the formation between two layers of release film layer is more
A film layer, comprising:
Compensation film, polarizing layer and protective layer are sequentially formed between two layers of release film layer.
10. preparation method according to claim 8, which is characterized in that the preparation method of the multiple film layer includes winding
Formula or surface coating.
11. a kind of display panel, which is characterized in that the display panel include array substrate, luminescence unit, encapsulated layer and
The described in any item polaroids of claim 1~7.
12. a kind of display device, which is characterized in that including the display panel described in claim 11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710606696.6A CN109298478A (en) | 2017-07-24 | 2017-07-24 | A kind of polaroid and preparation method thereof, display panel and display device |
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| CN201710606696.6A CN109298478A (en) | 2017-07-24 | 2017-07-24 | A kind of polaroid and preparation method thereof, display panel and display device |
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