CN105988154A - Circular polaroid and AMOLED (active matrix organic light emitting diode) display device with same - Google Patents
Circular polaroid and AMOLED (active matrix organic light emitting diode) display device with same Download PDFInfo
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- CN105988154A CN105988154A CN201510086510.XA CN201510086510A CN105988154A CN 105988154 A CN105988154 A CN 105988154A CN 201510086510 A CN201510086510 A CN 201510086510A CN 105988154 A CN105988154 A CN 105988154A
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- circular polarizer
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Abstract
The invention discloses a circular polaroid. The circular polaroid includes a polarization layer, a first protective film, a hardened layer, a second protective film, a first pressure sensing adhesive layer, a phase difference film layer and a second pressure sensing adhesive layer, wherein the polarization layer has a first surface and a second surface opposite to the first surface, the first protective film and the hardened layer are sequentially formed on the first surface, and the second protective film, the first pressure sensing adhesive layer, the phase difference film layer and the second pressure sensing adhesive layer are sequentially formed on the second surface; and a protective layer for absorbing ultraviolet light is formed between the hardened layer and the first protective film. The circular polaroid provided by the invention is of a novel structure. According to the circular polaroid, the ceria-silicon dioxide thin film is additionally adopted to effectively realize high rejection of ultraviolet light, so that the energy of ultraviolet light arriving at an organic light emitting layer can be decreased, and therefore, the organic light emitting layer can be protected, and the defect of uneven brightness of a display device can be avoided, and the quality of products can be improved, and the service lives of the products can be prolonged.
Description
Technical field
The present invention relates to Display Technique field, refer in particular to a kind of circular polarizer and there is this circular polarizer
AMOLED display device.
Background technology
Active matrix organic light-emitting diode (Active Matrix Organic Light Emitting
Diode, AMOLED) compare traditional display panels, AMOLED is as a new generation
Display device has a lot of advantages: have that response speed is fast, contrast is high, visual angle is relatively wide, display effect
The advantages such as fruit excellence and low power consumption.At mobile phone, digital camera, car-mounted display, notebook electricity
Brain and military field etc. all have broad application prospects.
In the application process of AMLOLED, TP (contact panel) and Polarizer are to UV not
100% cut-off, having part UV surplus may incide OLED through POL and ENCAP has
Machine layer, causes organic film characteristic to change, and (mura refers to display to cause screen to produce Mura
Device brightness irregularities, causes the phenomenon of various vestige) or display effect declines and service life reduction etc. is various
Problem.
For the problems referred to above, at present, mainly by the ultraviolet absorber that adulterates in TAC layer in Polarizer
Reduce ultraviolet and the transmitance of royal purple light, but the program have two problems:
1, PVA (polarizing layer) layer is the vitals that nature light is converted to line polarisation, the inside inclined
Be stretched photon (I ion) molding, and TAC material is the vitals of protection PVA, uv absorption
The doping of material can affect the safeguard function of TAC, reduces degree of polarization and the life-span of line Polarizer.
2, by the dark blue light of absorbed and ultraviolet light, absorb insufficient, still have part high energy ultraviolet
Surplus infringement organic layer, affects sub-pixel for emitting light.
Summary of the invention
In view of this, it is an object of the invention to, propose a kind of novel circular polarizer above-mentioned to solve
Technical problem.
A further object of the present invention is, proposes a kind of AMOLED with this circular polarizer and shows
Device is to solve above-mentioned technical problem.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of circular polarizer, including:
Polarizing layer, have first and with described first opposing second；
It is sequentially formed with the first protecting film and hardened layer on described first；
The second protecting film, the first pressure sensing adhesive layer, phase retardation film layer it is sequentially formed with on described second
And second pressure sensing adhesive layer；
Wherein, it is formed between described hardened layer and described first protecting film layer absorbing the anti-of ultraviolet light
Sheath.
As the further improvement of circular polarizer of the present invention, described overcoat is ceria-titanium dioxide
Silicon thin film.
As the further improvement of circular polarizer of the present invention, described ceria-silica thin film
Thickness is 300nm to 700nm.
As the further improvement of circular polarizer of the present invention, described first protecting film layer is triacetate fiber
Element film.
As the further improvement of circular polarizer of the present invention, described second protecting film layer is zero-bit phase difference
Film layer.
As the further improvement of circular polarizer of the present invention, described phase retardation film layer uses film like four points
One of wave plate.
As the further improvement of circular polarizer of the present invention, described second pressure sensing adhesive layer and described phase contrast
The opposing one side of film layer is formed for protecting the release tunic of described second pressure sensing adhesive layer.
In order to reach above-mentioned another purpose, the technical solution adopted in the present invention is:
A kind of AMOLED display device, including:
Substrate；
It is arranged at the organic luminous layer on described substrate；
It is arranged at the base plate for packaging on described organic luminous layer；And
The circular polarizer as described in above-mentioned any one being arranged on described base plate for packaging.
Progress one as AMOLED display device of the present invention improves, and also includes utilizing optical cement to cover
It is placed on the contact panel on described circular polarizer.
Progress one as AMOLED display device of the present invention improves, and described substrate selects low temperature many
Polycrystal silicon film transistor (TFT) array substrate.
The beneficial effects of the present invention is, propose the circular polarizer of a kind of new structure, utilize and increase
Ultraviolet height is ended by ceria-silica thin film therein effectively, reduces and arrives organic light emission
The energy of the ultraviolet light of layer, thus play protection organic luminous layer, it is to avoid display device produces display
The shortcoming of brightness disproportionation, to reach to improve product quality, the purpose of prolongation life of product.
Accompanying drawing explanation
Fig. 1 is the generalized section of circular polarizer structure of the present invention；And
Fig. 2 is the generalized section of AMOLED display device of the present invention.
Detailed description of the invention
Describe the present invention below with reference to detailed description of the invention shown in the drawings.But these
Embodiment is not limiting as the present invention, and those of ordinary skill in the art is done according to these embodiments
The structure, method or the conversion functionally that go out are all contained in protection scope of the present invention.
Refer to shown in Fig. 1, Fig. 1 is the generalized section of circular polarizer structure of the present invention.The present invention
Scheme protection polarizing layer 5 first one layer of overcoat 7 of protecting film 6 applied atop, such that it is able to
Absorb ultraviolet light, to protect the organic luminous layer 22 in AMOLED.Specifically, the circle of the present invention
Polarizer 10 includes: the second pressure-sensing glue 1 layer, phase retardation film layer (Retardation Film) 2,
One pressure-sensing glue 3 layers, the second protecting film 4, polarizing layer the 5, first protecting film 6 and hardened layer
(Hard-Coating, HC) 8, especially, increases between hardened layer 8 and the first protecting film 6 layers
Add one layer of overcoat 7 supplying to absorb ultraviolet light, the UV light of more than 99% can be ended, alleviate UV
The light infringement to circular polarizer 10 line inclined parts polarizing layer 5, protects this circular polarizer 10, Jin Erzeng
Add the life-span of product.
In the present embodiment, this polarizing layer 5 has the first face 51 and opposing with the first face 51
Two faces 53, are sequentially formed with the first protecting film 6, overcoat 7 on the first face 51 of this polarizing layer 5
And hardened layer 8, the second face 53 of polarizing layer 5 is sequentially formed with the second protecting film 4, first
Pressure sensing adhesive layer 3, phase retardation film layer 2 and the second pressure sensing adhesive layer 1, wherein, at hardened layer 8 and
It is formed for absorbing the overcoat 7 of ultraviolet light between one protecting film 6 layers.In detail, in the present invention
Polarizing layer 5 uses polyvinyl alcohol (Professional Video Assistant, PVA) material, this polarizing layer
5 by being changed into line polarized light by nature light.Preferably, in embodiments of the present invention, overcoat
7 is ceria-silica thin film, and the thickness of this ceria-silica thin film is 300nm
To 700nm, especially, the becoming of ceria and silicon dioxide in ceria-silica thin film
Proportion by subtraction example is bordering on 1:1.This ceria-silica thin film has visible ray high transmission, and ultraviolet light is high
The advantages such as cut-off, the refractive index of ceria-silica thin film and adjacent layer material folding in Polarizer
Rate of penetrating is close, thus without producing realistic problem, further, since this ceria-silica is thin
The thickness of film is 300nm to 700nm, and this thin film is the thinnest, so the thickness for Polarizer will not
Produce large effect.
Further, hardened layer 8 is used for protecting Polarizer.The first protecting film 6 layers in the present invention is
Three cellulose acetate membrane (Triacetyl Cellulose, TAC), is used for protecting polarizing layer 5.Second
Protecting film 4 layers is zero-bit phase difference film layer, is equally used for protecting polarizing layer 5.Preferably, the present invention
Embodiment in, phase retardation film layer 2 uses film like quarter-wave plate, by by line polarized light
Be converted to rotatory polarization.It addition, the first pressure-sensing glue 3 layers and the second pressure-sensing glue 1 layer in the present invention are all adopted
By the pressure-sensing glue (pressure sensitive adhesive, PSA) of acrylic system, this pressure-sensing glue is one
Class has the adhesive having sensitivity to pressure.
Especially, in order to protect the second pressure-sensing glue 1 layer exposed, the second pressure-sensing glue 1 layer and phase place
The one side differing from film opposing is formed for protecting the release tunic (not shown) of the second pressure-sensing glue 1 layer.Phase
Accordingly, in order to protect the hardened layer 8 exposed, opposing with the first protecting film 6 at hardened layer 8
One side be coated with protecting film (not shown).But fit in using this circular polarizer 10
During AMOLED display device, this release tunic and protecting film are both needed to remove.
As in figure 2 it is shown, the circular polarizer 10 of the present invention is applied to AMOLED display device, to incite somebody to action
The natural light not having deflection polarity is converted into polar biased light, makes to pass through with electric field light in vertical direction, allows
Display device can normal show image.Specifically, the AMOLED display device of the present invention includes:
Substrate 21；The organic luminous layer 22 being arranged on substrate 21；It is arranged on organic luminous layer 22
Base plate for packaging 23；And the circular polarizer described above 10 being arranged on base plate for packaging 23；Wherein,
This organic luminous layer 22 includes red sub-pixels, blue sub-pixel and green sub-pixel or other sub-pixels.
Especially, this AMOLED display device also includes utilizing optical cement 24 (Optically Clear
Adhesive, OCA) contact panel 25 that is covered on circular polarizer 10, optical cement 24 is used for touching
Material bonding on control panel 25, have high clarity, high light transmittance (full light transmittance > 99%),
High adhesion force, high durable, resistance to water, advantage high temperature resistant, anti-ultraviolet, and use for a long time
Yellow (xanthochromia) will not be produced, peel off and rotten problem.In the present invention, substrate 21 is selected
Low-temperature polysilicon film transistor array base palte.
The present invention proposes the circular polarizer of a kind of new structure, utilizes the dioxy increased in circular polarizer
Change cerium-silica membrane and effectively cut out the ultraviolet light of more than 99%, alleviate ultraviolet light to Polarizer
The infringement of line inclined parts polarizing layer, reduces the energy of the ultraviolet light arriving organic luminous layer, thus plays
Protection organic luminous layer, it is to avoid display device produces the shortcoming that display brightness is uneven, to reach to improve
Product quality, the purpose of prolongation life of product.
Above in association with accompanying drawing embodiment, the present invention is described in detail, ordinary skill people in this area
The present invention can be made many variations example by member according to the above description.Thus, some details in embodiment
Should not constitute limitation of the invention, the present invention by the scope that defines using appended claims as this
The protection domain of invention.
Claims (10)
1. a circular polarizer, it is characterised in that including:
Polarizing layer, have first and with described first opposing second；
It is sequentially formed with the first protecting film and hardened layer on described first；
The second protecting film, the first pressure sensing adhesive layer, phase retardation film layer it is sequentially formed with on described second
And second pressure sensing adhesive layer；
Wherein, it is formed between described hardened layer and described first protecting film layer absorbing the anti-of ultraviolet light
Sheath.
Circular polarizer the most according to claim 1, it is characterised in that described overcoat is two
Cerium oxide-silica membrane.
Circular polarizer the most according to claim 2, it is characterised in that described ceria-two
The thickness of silicon oxide film is 300nm to 700nm.
Circular polarizer the most according to claim 1, it is characterised in that described first protecting film
Layer is three cellulose acetate membrane.
Circular polarizer the most according to claim 1, it is characterised in that described second protecting film
Layer is zero-bit phase difference film layer.
Circular polarizer the most according to claim 1, it is characterised in that described phase retardation film layer
Use film like quarter-wave plate.
Circular polarizer the most according to claim 1, it is characterised in that described second pressure-sensing glue
The layer one side opposing with described phase retardation film layer is formed for protecting the release of described second pressure sensing adhesive layer
Tunic.
8. an AMOLED display device, it is characterised in that including:
Substrate；
It is arranged at the organic luminous layer on described substrate；
It is arranged at the base plate for packaging on described organic luminous layer；And
The rotatory polarization as according to any one of claim 1 to 7 being arranged on described base plate for packaging
Plate.
AMOLED display device the most according to claim 8, it is characterised in that also include
Utilize the contact panel that optical cement is covered on described circular polarizer.
AMOLED display device the most according to claim 8, it is characterised in that described base
Low-temperature polysilicon film transistor array base palte selected by plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086510.XA CN105988154B (en) | 2015-02-17 | 2015-02-17 | Circular polarizing plate and AMOLED display device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086510.XA CN105988154B (en) | 2015-02-17 | 2015-02-17 | Circular polarizing plate and AMOLED display device with same |
Publications (2)
| Publication Number | Publication Date |
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| CN105988154A true CN105988154A (en) | 2016-10-05 |
| CN105988154B CN105988154B (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510086510.XA Active CN105988154B (en) | 2015-02-17 | 2015-02-17 | Circular polarizing plate and AMOLED display device with same |
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Cited By (6)
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| CN109148722A (en) * | 2018-08-28 | 2019-01-04 | 京东方科技集团股份有限公司 | A kind of organic light emitting display panel, its production method and display device |
| CN109599415A (en) * | 2017-09-30 | 2019-04-09 | 上海和辉光电有限公司 | A kind of AMOLED display screen and terminal |
| CN109991793A (en) * | 2019-03-13 | 2019-07-09 | 武汉华星光电半导体显示技术有限公司 | A kind of display device being built-in with lens module |
| CN111856630A (en) * | 2019-04-25 | 2020-10-30 | 惠和株式会社 | Protective film for organic light emitting diode display including fingerprint authentication device |
| CN113156696A (en) * | 2021-04-14 | 2021-07-23 | 武汉华星光电半导体显示技术有限公司 | Display device |
| US11106071B2 (en) | 2019-03-13 | 2021-08-31 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display device having a built-in lens module |
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| CN113156696A (en) * | 2021-04-14 | 2021-07-23 | 武汉华星光电半导体显示技术有限公司 | Display device |
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| CN105988154B (en) | 2020-01-10 |
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Address after: 1568 Jiugong Road, Jinshan Industrial Zone, Jinshan District, Shanghai, 201506 Patentee after: Shanghai Hehui optoelectronic Co., Ltd Address before: 201508, building two, building 100, 1, Jinshan Industrial Road, 208, Shanghai, Jinshan District Patentee before: EverDisplay Optronics (Shanghai) Ltd. |
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