CN110323263A - Polaroid, display device - Google Patents
Polaroid, display device Download PDFInfo
- Publication number
- CN110323263A CN110323263A CN201910620975.7A CN201910620975A CN110323263A CN 110323263 A CN110323263 A CN 110323263A CN 201910620975 A CN201910620975 A CN 201910620975A CN 110323263 A CN110323263 A CN 110323263A
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- CN
- China
- Prior art keywords
- polaroid
- photochromic material
- coating
- photochromic
- light
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Classifications
-
- 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
-
- 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
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
Abstract
The invention proposes polaroids, display device.Polaroid includes polaroid ontology and coating, and coating is arranged on a surface of polaroid ontology, and the material for forming coating includes photochromic material；Alternatively, polaroid includes polarization layer, the material for forming polarization layer includes polyvinyl alcohol and photochromic material.Polaroid proposed by the invention, photochromic coating is formed in polaroid body surface, or photochromic material is added in polarization layer, photochromatic components are under transparent state in low light environment, and photochromatic components can change colour in strong light environment, to reduce the reflectivity of extraneous strong light, and then reduce interference of the extraneous strong light to display picture while not increasing power consumption of display devices.
Description
Technical field
The present invention relates to photoelectric display technical fields, specifically, the present invention relates to polaroids, display device.
Background technique
In existing flexible display apparatus, display effect is generally susceptible to the influence of exterior light.When incidence of external light arrives
When flexible display apparatus, the reflection of ambient light occurs in structure inside it.Moreover, active matrix organic light-emitting diode
(AMOLED) electrode generallys use high reflecting metal electrode structure, therefore, sends out from organic light emitting diode (OLED) luminescent layer
The ambient light that light out can be reflected with internal structure can mix, and the ambient light reflected will cause interference.So in room
It will appear reflective under the inner or outer strong light in boundary, to cause the interference and the not dark phenomenon of dark picture to display picture, and then lead
The contrast of screen, visibility is caused to reduce.
In general, rotatory polarization piece can be increased in the exit surface of OLED by alleviating this problem.But OLED at this stage takes
The reflectivity of rotatory polarization piece is carried still 4%~5%, there are still a degree of reflective especially under outdoor or extraneous strong light,
The ambient light of reflection still will cause the interference to display picture.If improving the brightness of display device, though interference can be reduced,
But the power consumption that will cause display device again increases.
Summary of the invention
The present invention is the following discovery based on inventor and completes:
The present inventor in the course of the research, designs a kind of Photochromic polarizer, adds in the structure of conventional polaroid
Add photochromic material, when being exposed in low light environment, the photochromatic components in Photochromic polarizer are substantially at normally
State；When being exposed in strong light environment, photochromatic components can change colour, and can drop interference of the low ambient light to display effect,
And do not have to the additional power consumption for increasing display device, it will not influence service life again while to reduce power consumption.
In view of this, an object of the present invention is to provide a kind of with photochromic function, reflection of ambient light
The low and Photochromic polarizer without increasing power consumption of display devices.
In the first aspect of the present invention, the invention proposes a kind of polaroids.
According to an embodiment of the invention, the polaroid includes polaroid ontology and coating, the coating is arranged described
On one surface of polaroid ontology, and the material for forming the coating includes photochromic material；Alternatively, the polaroid packet
Polarization layer is included, the material for forming the polarization layer includes polyvinyl alcohol and the photochromic material.
Inventor has found that the polaroid of the embodiment of the present invention, forms photochromic in polaroid body surface
Coating, or photochromic material is added in polarization layer, photochromatic components are under pellucidity in low light environment, and
Photochromatic components can change colour in strong light environment, to reduce the reflectivity of extraneous strong light, and then not increase display dress
Reduce interference of the extraneous strong light to display picture while setting energy consumption.
In addition, polaroid according to the above embodiment of the present invention, can also have the following additional technical features:
According to an embodiment of the invention, the polaroid is line polarisation piece or rotatory polarization piece.
According to an embodiment of the invention, the photochromic material is organic photochromic material, and described organic photic
The absorption peak of off-color material is between 300~1000nm.
According to an embodiment of the invention, the organic photochromic material includes the first organic photochromic material and second
Organic photochromic material, wherein the absorption peak of first organic photochromic material is described between 350~550nm
The absorption peak of second organic photochromic material is between 525~700nm.
According to an embodiment of the invention, the photochromic material is inorganic photochromic material, and described inorganic photic
Off-color material is the crystal grain of silver halide or copper halide.
According to an embodiment of the invention, the material for forming the coating further includes the acrylic acid after heat cure or ultra-violet curing
Coating or silicon coating.
According to an embodiment of the invention, the content of photochromic material described in the coating is 5~10w/w%.
In the second aspect of the present invention, the invention proposes a kind of display devices.
According to an embodiment of the invention, the display device includes display panel, cover board and above-mentioned polaroid, and described
Side of the polaroid far from the display panel is arranged in cover board.
Inventor has found that the display device of the embodiment of the present invention, polaroid has photochromic function,
In this way, the photochromatic components in polaroid are substantially at normal condition, work as display when display device is exposed in low light environment
Device is exposed in strong light environment, and photochromatic components can change colour, and can drop interference of the low ambient light to display effect, and not
With the additional power consumption for increasing display device, service life will not influence again while to reduce power consumption.Art technology
Personnel are still applied to the display device, herein no longer, it is understood that above for feature and advantage described in polaroid
It repeats.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned aspect combination following accompanying drawings of the invention explains the description of embodiment, in which:
Fig. 1 is the cross section structure schematic diagram of the polaroid of two embodiments of the invention；
Fig. 2 is the cross section structure schematic diagram of the polaroid of another embodiment of the present invention；
Fig. 3 is the cross section structure schematic diagram of the polaroid of another embodiment of the present invention；
Fig. 4 is light path schematic diagram of the display device of one embodiment of the invention under extraneous dim light and extraneous strong light.
Appended drawing reference
A photochromatic components
100 polaroids
110 polaroid ontologies
120 coatings
130 polarization layers
140 protective layers
150 phase retardation films
200 display panels
300 cover boards
L1 environment light
L2 emergent light
Specific embodiment
The embodiment of the present invention is described below in detail, those skilled in the art is it will be appreciated that following example is intended for solving
The present invention is released, and is not construed as limitation of the present invention.Unless stated otherwise, it is not expressly recited in embodiment below specific
Technology or conditions, those skilled in the art can be according to common technology or conditions in the art or according to product description
It carries out.
In one aspect of the invention, the invention proposes a kind of polaroids.
According to an embodiment of the invention, polaroid 100 may include polaroid ontology 110 and coating with reference to (a) of Fig. 1
120, coating 120 may be provided on a surface of polaroid ontology 110, and the material for forming coating 120 may include light-induced variable
Color materials A；Alternatively, polaroid 100 also may include polarization layer 130 with reference to (b) of Fig. 1, the material for forming polarization layer 130 can
Including polyvinyl alcohol and photochromic material A.In this way, the material for forming polaroid 100 includes photochromic material, need to illustrate
, " photochromic material " refers to that molecular structure can changed certainization under specific wavelength and the light action of intensity
Object is closed, corresponding change is occurred to the absorption peak of light so as to cause it, is changed accordingly macroscopically showing as color, and this
Change is generally reversible.
Inventor designs a kind of Photochromic polarizer, forms photochromic coating on 110 surface of polaroid ontology
120, or photochromic material A is added in polarization layer 130, when polaroid 100 is exposed to low light environment, (intensity of illumination is not more than
In 1500Lux), the photochromatic components A in Photochromic polarizer is substantially at transparent state；When being exposed to strong light environment (light
It is greater than 1500Lux according to intensity) in, photochromatic components A can change colour, polaroid 100 can be reduced to the transmitance of environment light,
So as to which interference of the environment light to display effect is effectively reduced.
In some specific embodiments of the invention, with reference to Fig. 2, polaroid 100 may include 110 He of polaroid ontology
Coating 120, coating 120 may be provided on a surface of polaroid ontology 110, and the material for forming coating 120 may include light
Cause off-color material.In this way, having one layer of the upper surface coating that will transmit through light modulation into the polaroid ontology 110 of polarised light in script
Coating 120 containing photochromatic components A, so as to make polaroid 100 while having the function of to be polarized or analyzing and photochromic
Function.
In other specific embodiments of the invention, with reference to Fig. 3, polaroid 100 also may include polarization layer 130,
The material for forming polarization layer 130 may include polyvinyl alcohol (PVA) and photochromic material.In this way, former not changing polarizing film 100
While this integral thickness, also make polarization layer 130 that there is photochromic function.
According to an embodiment of the invention, polaroid 100 can be line polarisation piece or rotatory polarization piece, in this way, intensity of illumination is big
After the natural light of 1500Lux passes through polaroid 100, not only light intensity is lowered and is also modulated into linearly polarized light or circular polarization
Light.In some embodiments of the invention, polaroid 100 can be rotatory polarization piece, specifically refer to Fig. 3, and polaroid 100 can wrap
The protective layer 140 being stacked, polarization layer 130, protective layer 140 and phase retardation film 150 (such as quarter-wave plate) are included, such as
This, extraneous incident ambient natural light occurs anti-after linear polarization layer 130 and quarter-wave plate 150 at electrode
Using quarter-wave plate 150 after penetrating, the reflected light vertical with linear polarization mating plate polarization direction will become, thus can be inclined by line
The mating plate that shakes stops, and then can reduce the reflectivity of external environmental light, and reduces its interference problem to display picture.
According to an embodiment of the invention, the specific type of photochromic material is not particularly limited, those skilled in the art
Member correspondingly can be selected and be designed according to the actually located environment of the polaroid 100.In some embodiments of the invention,
Photochromic material can be organic photochromic material A1, and the absorption peak of organic photochromic material A1 300~
Between 1000nm, specifically such as chromene, chromene, in this way, containing the polaroid of above-mentioned organic photochromic material A11
100 can realize photochromic function for the illumination in visible-range.In some specific examples, organic photochromic material
A1 can include at least the first organic photochromic material A11 and the second organic photochromic material A12, wherein first organic light
Between 350~550nm, the absorption peak of the second organic photochromic material A12 exists the absorption peak of mutagens color materials A 11
Between 525~700nm.In this way, including above two sensitive to bluish-green optical band and yellow orange red spectral band organic photic respectively
Off-color material can make polaroid 100 all have photochromic function substantially to the illumination in visible-range.Of the invention
In other embodiments, photochromic material may be inorganic photochromic material A2, and inorganic photochromic material A2 can
The crystal grain of silver halide or copper halide is thought, in this way, more preferably can more uniformly be added to coating using the inorganic particle of mentioned kind
120 or polarization layer 130 in.
In some embodiments of the invention, after the material of formation coating 120 can also be including heat cure or ultra-violet curing
Acrylic coating or silicon coating, in this way, by photochromic material and the monomer of heat cure or ultra-violet curing, oligomer and can draw
It sends out agent etc. and is first uniformly mixed re-coating on the surface of polaroid ontology 100, coating 120 is then made by heating or ultraviolet light
Solidification.Alternatively, will directly can also be dissolved in together with photochromic material and the polymer of acrylic coating or silicon coating molten altogether
Agent is coated on the surface of polaroid ontology 100, and equal solvent can quickly form coating 120 after volatilizing completely.Even it can choose
Electronics comes (EB) and solidifies or spontaneously dry matrix of the cured polymeric system as coating 120.
In some specific examples, the content of photochromic material can be 5~10w/w% in coating 120, specifically for example
6,8w/w% etc., in this way, coating 120 can be made to be greater than 1500Lux according to intensity using the photochromic material of above-mentioned content range
Strong illumination under make the reflectivity of environment light lower than 1%.Also, if the content of photochromic material is lower than in coating 120
5w/w%, then the photochromic effect of polaroid 100 is unobvious；If the content of photochromic material is higher than in coating 120
10w/w%, then polaroid 100 influences whether the normal display of display device under photochromic state.
In other embodiments of the invention, due to PVA film piece (film) have passed through washing, swelling, clean, dyeing,
A series of polaroids such as clean, drying make standard procedures, it is possible to during its dyeing, will contain inorganic or organic
The polymeric matrix of photochromic material is uniformly coated in sheet material.It is drawn during subsequent production, then by sheet material
Processing is stretched, stretch processing can be such that photochromic material therein substantially evenly arranges, so that the sheet material obtains polarization effect, i.e.,
The light for being parallel to the stretching orientation of photochromic material can all pass through, and the light of remaining angle is only capable of part and passes through
Or it is blocked, that is to say, that the sheet material with photochromic effect obtains polarization effect after processing.Terminate stretching processing procedure
Afterwards, by the upper of PVA film piece or/and under stick protective layer 140 (such as blue cellulose acetate film TAC, acrylic film, polyimides PI
Film etc.), then it is bonded phase difference compensation plate quarter wave plate, to complete the entire processing procedure of Photochromic polarizer.
In conclusion according to an embodiment of the invention, the invention proposes a kind of polaroid, in polaroid body surface shape
At photochromic coating, or photochromic material is added in polarization layer, photochromatic components are in transparent in low light environment
Under state, and photochromatic components can change colour in strong light environment, to reduce the reflectivity of extraneous strong light, and then not increase
Reduce interference of the extraneous strong light to display picture while adding power consumption of display devices.
In another aspect of the invention, the invention proposes a kind of display devices.
According to an embodiment of the invention, with reference to Fig. 4, display device includes display panel 200, cover board 300 and above-mentioned inclined
Mating plate 100, and side of the polaroid 100 far from display panel 200 is arranged in cover board 300.In this way, when display device is in dim light
It is transparent state in natural light L1 irradiation down polaroid 100 of the intensity of illumination no more than 1500Lux with reference to (a) of Fig. 4 in environment,
Natural light L1 is stopped by polaroid 100 after the electrode top reflection of display panel 200 later through polaroid 100,
Emergent light L2 so as to issue display panel 200 is normally shown；When display device is in strong light environment, with reference to Fig. 4's
(b), natural light L1 irradiation 100 electrochromism of down polaroid in intensity of illumination greater than 1500Lux is coloured form, the portion natural light L1
Divide through after polaroid 100, is also all stopped by polaroid 100 after the electrode top reflection of display panel 200, thus
The emergent light L2 that display panel 200 can be made to issue normally is shown.
According to an embodiment of the invention, the concrete type of the display device is not particularly limited, specifically such as display screen,
TV, mobile phone, tablet computer or smartwatch etc., those skilled in the art can actual operation requirements progress according to display device
It correspondingly selects, details are not described herein.It should be noted that in addition to display panel (Panel), cover board in the display device
It (Cover) further include other necessary the Nomenclature Composition and Structure of Complexes and other than polaroid, by taking flexible AMOLED display screen as an example, concrete example
Touch panel (TSP), etc. between cover board and polaroid is such as set, and those skilled in the art can be according to the display device
Concrete function is correspondingly supplemented, and details are not described herein.
In conclusion according to an embodiment of the invention, polaroid has photic the invention proposes a kind of display device
The function of discoloration, in this way, the photochromatic components in polaroid are substantially at normally when display device is exposed in low light environment
State, when display device is exposed in strong light environment, photochromatic components can change colour, and can drop low ambient light to display effect
Interference, and do not have to the additional power consumption for increasing display device, will not influence service life again while to reduce power consumption.
It will be appreciated to those of skill in the art that being still applied to display dress above for feature and advantage described in polaroid
It sets, details are not described herein.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (8)
1. a kind of polaroid, which is characterized in that the polaroid includes polaroid ontology and coating, and the coating is arranged described
On one surface of polaroid ontology, and the material for forming the coating includes photochromic material；Alternatively, the polaroid packet
Polarization layer is included, the material for forming the polarization layer includes polyvinyl alcohol and the photochromic material.
2. polaroid according to claim 1, which is characterized in that the polaroid is line polarisation piece or rotatory polarization piece.
3. polaroid according to claim 1, which is characterized in that the photochromic material is organic photochromic material
Material, and the absorption peak of the organic photochromic material is between 300~1000nm.
4. polaroid according to claim 3, which is characterized in that the organic photochromic material includes first organic light
Cause off-color material and the second organic photochromic material, wherein the absorption peak of first organic photochromic material is 350
Between~550nm, the absorption peak of second organic photochromic material is between 525~700nm.
5. polaroid according to claim 1, which is characterized in that the photochromic material is inorganic photochromic material
Material, and the inorganic photochromic material is the crystal grain of silver halide or copper halide.
6. polaroid according to claim 1, which is characterized in that the material for forming the coating further includes heat cure or purple
Acrylic coating or silicon coating after outer solidification.
7. polaroid according to claim 1, which is characterized in that the content of photochromic material described in the coating is
5~10w/w%.
8. a kind of display device, which is characterized in that including display panel, cover board and it is according to any one of claims 1 to 7 partially
Mating plate, and side of the polaroid far from the display panel is arranged in the cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620975.7A CN110323263A (en) | 2019-07-10 | 2019-07-10 | Polaroid, display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620975.7A CN110323263A (en) | 2019-07-10 | 2019-07-10 | Polaroid, display device |
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| CN110323263A true CN110323263A (en) | 2019-10-11 |
Family
ID=68121832
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| CN201910620975.7A Pending CN110323263A (en) | 2019-07-10 | 2019-07-10 | Polaroid, display device |
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| CN111128036A (en) * | 2019-10-23 | 2020-05-08 | 中国电子科技集团公司第五十五研究所 | Method for improving brightness uniformity of self-luminous display device |
| CN111633893A (en) * | 2020-06-09 | 2020-09-08 | 江苏淘镜有限公司 | Manufacturing process of multilayer composite color-changing polarized resin lens for interior of vehicle |
| CN111633892A (en) * | 2020-06-09 | 2020-09-08 | 江苏淘镜有限公司 | Manufacturing process of ultrathin color-changing polarized resin lens |
| CN112038372A (en) * | 2020-08-27 | 2020-12-04 | 上海天马微电子有限公司 | Display panel and display device |
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| CN111633893A (en) * | 2020-06-09 | 2020-09-08 | 江苏淘镜有限公司 | Manufacturing process of multilayer composite color-changing polarized resin lens for interior of vehicle |
| CN111633892A (en) * | 2020-06-09 | 2020-09-08 | 江苏淘镜有限公司 | Manufacturing process of ultrathin color-changing polarized resin lens |
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Application publication date: 20191011 |
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| RJ01 | Rejection of invention patent application after publication |