CN107924005A

CN107924005A - Luminous reduction compound for electronic equipment

Info

Publication number: CN107924005A
Application number: CN201680048240.6A
Authority: CN
Inventors: 贾斯廷·巴雷特; 史蒂文·D·莫; 博尼·G·西蒙斯; 贾斯廷·托莱
Original assignee: Health LLC
Current assignee: Health LLC
Priority date: 2015-06-15
Filing date: 2016-06-14
Publication date: 2018-04-17
Anticipated expiration: 2036-06-14
Also published as: WO2016205260A1; CN107924005B

Abstract

A kind of light absorbs neutral density filter for electronic equipment display.More specifically, the light absorbs neutral density filter as protection body, protective film or protective coating of the electronic equipment display for block ultraviolet, high-energy visible ray and at least a portion blue light.Neutral density filter includes polymeric substrate and absorbent.

Description

Luminous reduction compound for electronic equipment

Cross reference to related applications

The application is entitled " the LIGHT EMISSION REDUCING FILM for requiring to submit on May 23rd, 2014 What 22 days Mays in 2015 of the rights and interests of the U.S. Provisional Application No. 62/002412 of FOR ELECTRONIC DEVICES " submitted Entitled " the U.S. non-provisional application of LIGHT EMISSION REDUCING FILM FOR ELECTRONIC DEVICES " The part continuation application of No. 14/719604, and require entitled " the LIGHT EMISSION submitted on June 15th, 2015 The U.S. Provisional Application No. 62/175926 of REDUCING FILM FOR ELECTRONIC DEVICES ", in November, 2015 Entitled " the U.S. of LIGHT EMISSION REDUCING COMPOUNDS FOR ELECTRONIC DEVICES " submitted for 13rd State's provisional application the 62/254871st, entitled " the LIGHT EMISSION REDUCING submitted on November 13rd, 2015 The U.S. Provisional Application No. 62/255287 of FILM FOR VIRTUAL REALITY HEADSET ", on April 13rd, 2016 Entitled " the U.S. Provisional Application of LIGHT EMISSION REDUCING FILM FOR ELECTRONIC DEVICES " submitted The rights and interests of No. 62/322624.

Technical field

Disclosed invention is related to one or more of absorption compounds, it can be with one or more polymeric substrates Combination, to set on an electronic device or combine in the electronic device, is included on the display screen of electronic equipment.

Background technology

Electronic digit equipment usually launches the spectrum being made of the light of different wave length, and wherein human eye is able to detect that about 350 nanometers (nm) is to the visible spectrum between about 700 nanometers (nm).It has realized that this light (in visible range and invisible In both scopes) some features user may be harmful to, and cause healthy symptom and unfavorable health reaction, it is such as but unlimited In eye fatigue, eyes drying and stimulation, fatigue, eye-blurred and headache.Exposed to the blue light found in the electronic device There may be contacting between human health risk, the risk to the potential hazard of eyes is especially in the presence of.Some think, cruelly It is exposed under the light that such as digital device screen of visible ray of blue light and/or high-energy is sent and may result in age-dependent macula lutea The problems such as denaturation, the melatonin levels reduced, Acute Retinal infringement, retina accelerated ageing and interruption of cardiac rhythm. In addition research may disclose the other muscle skeleton problem being exposed to for a long time caused by under blue spectrum.

More specifically, it is known that by visible (HEV) light of high-energy of digital device transmitting than other wavelength in visible spectrum Increase eye fatigue.Blue light can reach deeper place in eyes with ratio such as ultraviolet light, and retina may be caused Infringement.In addition, expose age-related macular degeneration (AMD) in blue light also likely to be present cause and effect pass between cataract development System.Furthermore it is known that eye fatigue symptom can be caused using digital electronic device.This infringement is considered as by penetrating macular pigment HEV light caused by, this causes faster retina to change.

In addition, blue light exposure is to taking off black sharp about twice that is suppressed to green light and with twice of change circadian rhythm.Blue light ripple Long light is seemingly most destructive at night.Research is it is also shown that blue frequencies and the LED of the electronic equipment such as smart phone Similarly the efficiency in terms of photoreceptor death is caused is 50 to 80 times higher than green light for those produced.Seem exposed to blue spectrum Than other regions more rapidly AMD of visible spectrum.However, also suspect may also be brought exposed to feux rouges and green spectrum it is strong Health risk, this can be mitigated by absorbing the light in the wave-length coverage produced by equipment.

In addition, eye care professional pays special attention to ultraviolet A (UVA) light (in the range of 320nm to 380nm).UVA light Damaging is considered to have, because it directly affects the crystalline lens of human eye.In one embodiment, film 200 according to by The standard of world security equipment association setting, is particularly ANSI/ISEA Z87.1-2010 standards to reduce high-energy visible ray, It has weighed spectral sensitivity of the eyes to the spectral emittance in the range of 380nm to 1400nm.

Although the light produced by the LED from digital device is seemingly normal for human vision, by this Also launch the strong blue light peak in 380 nanometers to 500 nanometer ranges in the white-light spectrum that the screen of kind digital device produces.Due to This blue light is corresponding with the known spectra for retina harm, it is therefore desirable to protects users from the hand exposed to this light Section.

Filter is widely used in including in the application of the filter of LCD (liquid crystal display) phase difference film.LCD phase differences Film uses the alternating layer for the material being made of plating pigment, pigment dipping or printing process material.These methods experience friction, It can be damaged when heat or moisture, and ghost effect may be caused.Due to moisture and mechanical integrity, to optical density (OD) transmissivity Requirement with sustainability may also fail.

These are harmful to the exposure of light to reduce although having had taken up some measures, these measures are insufficient It is enough.Application software scheme reduces the wavelength of transmitting for some measures, but they are easy to become less efficient, and can Viewing experience can be changed due to stopping the light too much from selected wavelength, and therefore changed to the visible color of user.Its His measure has applied the physical equipment being placed on above screen.However, these equipment seriously change it is visible to user Color, and in most cases, block at least one complete color from chromatography completely.

More specifically, current film base material technology usually lacks required optical property, stability such as to UV light, can See the selective transmission rate in optical range and the absorption in UV light and high intensity blue light range or other absorption characteristics.Mesh Preceding film base material also lacks required mechanical performance, heat resistance and mechanical robustness such as under desired thinness.Glass, poly- carbon Acid esters, acrylic acid and nylon eyeglass and film exist, but may not maintain the scattered of dyestuff or pigment and realize to be enough The optical density (OD) of high-transmission rate value is kept under the thickness.In one embodiment, the F700 such as produced by Kentek companies Film water tolerance and humidity.This film is preferable compared with the glass that may need to polish again.Other benefits are increased Color resolution, repeatability and without adhesive requirement.

Therefore, it is necessary to provide at least some protections from wearing and destroying for equipment, and protect the user from by equipment Physics film, protective layer in the electronic equipment screen of the potentially harmful light sent or on the existing base material of electronic equipment screen Coating.In addition, film or protective coating should provide necessary protection, while keep transparency and substantially real color representation.

The content of the invention

Provide the protection body, protective film and protective coating for equipment.In one embodiment, for the anti-of equipment Watch box includes polymeric substrate.Protection body can also include the absorbent being dispersed in polymeric substrate.The protection body can be with By the decrease in transmission of ultraviolet light range at least 90%, the ultraviolet range of wherein light is included between 380 nanometers to 400 nanometers Scope, and wherein the protection body also makes the decrease in transmission 10% of high-energy visible-range, wherein high-energy visible ray model Enclose including the scope between 415 nanometers to 555 nanometers, and wherein protection body also by the decrease in transmission of red range at least 10%, wherein red range includes the scope between 625 nanometers to 740 nanometers.In addition, protection body can be configured to transmit The enough light produced by equipment so that the image produced by equipment is not changed substantially by protection body.Embody claimed These and various other feature and advantage of embodiment will be by reading described in detail below and checking relevant drawings After become apparent from.

Brief description of the drawings

Figure 1A shows the light absorping film of an embodiment according to the present invention.

Figure 1B shows the light absorping film of an embodiment according to the present invention.

Fig. 1 C show the light absorping film of an embodiment according to the present invention.

Fig. 1 D show the transmission curve of light absorping film according to an embodiment of the invention.

Fig. 1 E show the transmission curve of light absorping film according to an embodiment of the invention.

Fig. 2A shows the example between eyes according to an embodiment of the invention and the equipment with light absorping film Property interaction.

Fig. 2 B show the exemplary effective wavelength absorption region of light absorping film.

Fig. 2 C-1 show a variety of absorption chemical combination of the desired characteristic available for an embodiment for realizing light absorping film Thing.

Fig. 2 C-2 show a variety of absorption chemical combination of the desired characteristic available for an embodiment for realizing light absorping film Thing.

Fig. 2 C-3 show a variety of absorption chemical combination of the desired characteristic available for an embodiment for realizing light absorping film Thing.

Fig. 2 C-4 show a variety of absorption chemical combination of the desired characteristic available for an embodiment for realizing light absorping film Thing.

Fig. 2 C-5 show a variety of absorption chemical combination of the desired characteristic available for an embodiment for realizing light absorping film Thing.

Fig. 2 C-6 show a variety of absorption chemical combination of the desired characteristic available for an embodiment for realizing light absorping film Thing.

Fig. 2 C-7 show a variety of absorption chemical combination of the desired characteristic available for an embodiment for realizing light absorping film Thing.

Fig. 3 A depict the transmissivity for various absorbing films for showing an embodiment according to the present invention as ripple The figure of long function.

Fig. 4 A depict the method for being used for the light absorping film of equipment in generation of an embodiment according to the present invention.

Fig. 4 B depict method of the generation of an embodiment according to the present invention for the light absorping film of equipment.

Fig. 4 C depict method of the generation of an embodiment according to the present invention for the light absorping film of equipment.

Fig. 5 A depict the exploded view of the screen for the electronic equipment being made of several layers of glass and/or plastics.

Fig. 5 B depict the screen for the electronic equipment being made of several layers of glass and/or plastics.

Fig. 5 C depict the exploded view of the screen for the electronic equipment being made of several layers of glass and/or plastics, wherein absorbing film Layer is inserted between two layers in several layers.

Fig. 5 D depict the screen for the electronic equipment being made of several layers of glass and/or plastics, and wherein absorbing membranous layer is inserted in Between two layers in several layers.

Fig. 5 E depict the exploded view of the screen for the electronic equipment being made of several layers of glass and/or plastics, wherein light absorbs Adhesive is added in a layer in several layers.

Fig. 5 F depict the screen for the electronic equipment being made of several layers of glass and/or plastics, and wherein light-absorbing coating is added It is added in a layer in several layers.

Fig. 5 G depict the light wave of the screen emissions from the electronic equipment being made of several layers of glass and/or plastics.

The light that Fig. 5 F depict the screen emissions for the electronic equipment being made of several layers of glass and/or plastics and are blocked Ripple, wherein absorbing membranous layer are inserted between two layers in several layers.

Fig. 6 A are depicted with the light being inserted in virtual reality headphone (virtual reality headset) The virtual reality headphone of one embodiment of absorbed layer.

Fig. 6 B depict the void of an embodiment with the light absorbing layer being inserted in virtual reality headphone Intend real headphone.

Fig. 6 C depict the void of an embodiment with the light absorbing layer being inserted in virtual reality headphone Intend real headphone.

Embodiment

Usually, the present invention relates to one or more of absorption compounds, it can be with one or more of polymer matrixes Material is combined to set on an electronic device or be bound in electronic equipment.Absorption compound desirably based on blueness and be Individual provides the protection from the potentially harmful light launched by electronic equipment, and polymeric substrate is used for electronic equipment Application or application in the electronic device.Absorption compound and polymeric substrate combination described herein can include being used for Manufacture is with the restriction transmissivity and the material of the filter of optical density (OD) characteristic for visible wavelength transmissivity.In some implementations In scheme, the polycarbonate compositions of organic dyestuff dipping can be included by manufacturing the material of this filter.In the application, can be with Protective film is applied to the screen surface of equipment after electronic equipment is bought, or during manufacture can be combined protective film Into screen.In another embodiment, absorption compound can be applied to the existing film in device screen as protective coating On layer or other base materials.

Film and film character

Figure 1A to Fig. 1 C is shown is used for the exemplary of the light for absorbing specific wavelength in one embodiment of the invention Film.As described in any embodiment in the embodiment that includes below, a variety of membrane materials can be appropriate.Base In various properties, specific application can be directed to and select membrane material.For example, specific hardness, scratch resistance, transparent can be directed to Degree, electric conductivity etc. select membrane material.In one embodiment, film is by least one absorption compound and polymeric material group Into, for example, in polymeric substrates listed in table 1 below any one or more kind.As described above, according to absorption compound The type of skill applied carrys out selective polymer substrate.

Table 1：Polymeric substrates for absorbing film

In one embodiment, in the polymer that will be listed in table 1 any one or more kind with it is one or more of Kind absorption compound (such as those listed in table 2 below) is combined to produce can be with one or more of equipment such as intelligence electricity Words, laptop, tablet computer, glasses make together with other any transparent surfaces that electronic display unit is used together Film 100.In one embodiment, transparency is at least partially based on to select the polymeric substrates for film 100 so that User still can watch the screen of electronic display unit by film 100.In another embodiment, be at least partially based on its with The compatibility of required absorption compound carrys out selective polymer substrate.In a further embodiment, combined based on absorption compound Carry out selective polymer substrate to itself or base material attached to it.

According to an embodiment, as shown in Figure 1A, film 100 is applied to the equipment 102 with screen 104.Although figure 1A shows the equipment 102 as smart phone, but 100 property of can be exemplified of film be designed to be applied to any other equipment, Such as the top of screen 154 shown in fig. ib has the laptop 152 of film 150.In addition, in another embodiment, Film 100 can be incorporated in in one or more haptic lenses (contact lens) of equipment such as a pair of glasses.

Film 100 is formed by suitable material (such as polymer) and one or more of light absorbing dyestuffs, the light absorbs dye Material optionally reduces the peak value and slope of the Electromagnetic Launching of from occupation and personal electronic equipment.This film can be used Electronic equipment other examples can include such as LED, LCD, computer monitor, device screen, television set, tablet electricity Brain, mobile phone etc..For example it is bound in contact lens or glasses however, it can also be used in the user terminal of viewing experience.

Fig. 1 C show two layers of film 100.In one embodiment, film does not include the anti-dazzle painting as shown in film 170 Layer.In another embodiment, film 100 includes coating 172, its floating coat 172 include anti-dazzle coating 172, hard conating 172 and/ Or viscous coating 172.In one embodiment, absorption compound can be bonded directly to coating material rather than basement membrane layer In.This can for example be realized due to the compatibility between absorption compound and required polymeric substrate.

In one embodiment, film 100 is based on blueness, and at least partially due to selected absorption compound And there is slight tone, and as filter to reduce the light emitting from screen 104.In one embodiment, exist Under CIE light sources D65, the film 100 with 7.75 mil thickness is (L, a, b) value with (90.24, -12,64,3.54) respectively With the pale bluish green of the X-Y-Z values of (67.14,76.83,78.90).In another embodiment, due to the load of reduction, film 100 seem more shallow.

In one embodiment, film 100 is configured to reduce across wide spectrum (such as 200nm to 3000nm scopes) Light emitting.In another embodiment, film 100 may be configured to reduce only in a part for the extensive spectrum (such as Only in visible spectrum 390nm to 700nm), or (such as in spectrum 200nm to 1400nm only in a part for visible spectrum It is interior) light emitting.

In one embodiment, film 100 is configured to make the light emitting normalization (normalize) from screen 104, So that the luminous intensity peak value across spectrum reduces.In one embodiment, by luminous intensity be normalized to 0.0035 to 0.0038 it Between maximum absorbance it is horizontal.

In the illustrated embodiment of Figure 1A, film 100 is configured for touch-screen (such as capacitive touch screen) Equipment.When the capacitive touch screen of such as screen 104 is used together, film 100 may be configured to have suitable electricity spy Property so that user's touch input is recorded exactly by equipment.For example, film 100 can have the dielectric constant less than 4.Another In example, dielectric constant is less than 3.In a specific embodiment, the dielectric constant of film 100 is between 2.2 to 2.5.

In one embodiment, film 100 has 10 mils to the thickness between 30 mils and more than 30 Rockwell hardness R's Hardness.In one embodiment, the hardness of film 100 in 45 Rockwell hardness R between 125 Rockwell hardness R.

Although the embodiment shown in Figure 1A to Fig. 1 C be after the fabrication film be applied to electronic equipment in the case of Description, it should be noted that described feature can be used in other application, such as, but not limited to for eye wear (such as Glasses, contact lenses etc.) and window on application, for example, to protect laser.It can also be used in light through its transmission and In any other surfaces that can be received by human eye.In one embodiment, film 100 is applied to eyeglass, such as rectifys Positive lens glasses, sunglasses, safety glasses etc..In another embodiment, when film 100 is shown as making in Figure 1A and Figure 1B When being applied to equipment 102 for feature after sale and being provided to user as shown in Figure 1 C, during equipment 102 manufactures, 100 quilt of film It is included in equipment 102 so that film 100 is located at behind screen 104 or the screen 104 of constitution equipment 102.

Fig. 1 D to Fig. 1 E show the multiple transmission curves for the different films that can be used in embodiments of the invention.Film The transmissison characteristic of (such as film 100) can be limited by the transmission curve shown in transmission curve such as Fig. 1 D or Fig. 1 E.Specifically Ground, curve 180 show the exemplary transmission curve of filter glass.Curve 182 shows the film of the thickness with 4 mils 100 exemplary transmission curve.Curve 184 shows the exemplary transmission curve of the film 100 of the thickness with 7.75 mils.Thoroughly Penetrate transmission local maximum that curve is included in visible wavelength range and attached in each end of visible wavelength range Near the first transmission local minimum and the second transmission local minimum.

In one embodiment, transmission local maximum be located at 575nm at the position between 425nm, and first transmits Local minimum be located at the position of about more than 700nm or near, and second transmission local minimum be located at about 300nm with Under position at or near.The transmission of 85% or bigger can be had by transmiting local maximum.Transmission local maximum may be used also With the transmission with 90% or bigger.In one embodiment, the first transmission local minimum and the second transmission Local Minimum Value can have the transmission less than 30%.In another embodiment, the first transmission local minimum and the second transmission are local most Small value can have the transmission less than 5%.In one embodiment, it is local most to be additionally may included in each transmission for transmission curve The one 50% transmission cut-offs (cut off, cutoff) between small value and transmission local maximum and the two 50% transmission cut-offs.

In one embodiment, transmission curve can also be included by bent to the transmission between 575nm at least for 750nm The slope of the reduction of line and the curve shoulder formed, which increase the wavelength in this end of visible spectrum (such as feux rouges) Transmission.In one embodiment, curve shoulder passes through the position of 644nm ± 10nm.In other embodiments, curve shoulder Portion can be to pass through the position of 580nm ± 10nm.One of 50% transmission cut-off can be overlapped with curve shoulder, such as in 644nm At ± 10nm.

As it is used herein, term " optical density (OD) " and " absorbance " are interchangeable, it is incident on referring on material Electromagnetic radiation amount with transmitted through material electromagnetic radiation amount logarithm ratio.As it is used herein, " transmission " or " transmission Property " or " transmissivity " be interchangeable, with refer to through material specific wavelength incidence electromagnetic radiation fraction or percentage. As used in this article, " transmission curve " refers to the light transmission percentage by filter of the function as wavelength." transmission Local maximum " refers to the following location (i.e. at least one point) on curve：At the position, pass through the transmission of the light of filter Maximum is in relative to the adjacent position on curve." transmission local minimum " refers to the following location on curve：In the position Place is put, transmits and is in minimum value relative to the adjacent position on curve.As it is used herein, " 50% transmission cut-off " refers to The position for being transmitted as about 50% that the electromagnetic radiation (such as light) penetrated on curve passes through filter.

In one embodiment, the transmissison characteristic of filter, such as those shown in FIG. 3 below, in an implementation In scheme can by using be wherein dispersed with blueness or blue-green organic dyestuff polycarbonate membrane as polymeric substrate Realize.The polycarbonate membrane of organic dyestuff dipping can have the thickness less than 0.3mm.In another embodiment, poly- carbonic acid Ester film can have the thickness less than 0.1mm.The thinness of polycarbonate membrane can aid in the maximum for the light for making to be produced by equipment Transmissivity is more than 90%.In at least one embodiment, organic dyestuff dipping film can have 2.5 mils to 14 mils it Between thickness.There is engine dyeing using polycarbonate substrate and blueness or blue-green in one or more embodiments of the disclosure The combination of material to reduce even in thickness in the case of improved heat resistance and mechanical robustness are also provided.

Polycarbonate membrane can include any kind of polycarbonate pc, such as 123 R of LEXAN.Although poly- carbonic acid Ester provides desired machinery and optical property for film, but can also use other polymers, such as cyclic olefine copolymer (COC)。

In one embodiment, such as can also be by using the acrylic film for being wherein dispersed with blue-green organic dyestuff To realize similar transmissison characteristic.The acrylic film of organic dyestuff dipping can have the thickness less than 0.3mm.In another implementation In scheme, acrylic film can have the thickness less than 0.1mm.The thinness of acrylic film, which can aid in, makes what is produced by equipment The maximum transmission rate of light is more than 90%.In at least one embodiment, the film of organic dyestuff dipping can have 2.5 mils extremely Thickness between 14 mils.In one or more embodiments, acrylic acid base material and blue-green organic dyestuff can be used Combination to reduce even in thickness in the case of improved heat resistance and mechanical robustness are also provided.

In another embodiment, such as can also be by using the epoxy resin for being wherein dispersed with blue-green organic dyestuff Film realizes similar transmissison characteristic.The epoxy resin film of organic dyestuff dipping can have the thickness less than 0.1mm.Another In embodiment, epoxy resin film can have the thickness less than 1 mil.The thinness of epoxy resin film, which can aid in, to be made by setting The maximum transmission rate of the standby light produced is more than 90%.In one or more embodiments, epoxy resin base material can be used Combination with blue-green organic dyestuff to reduce even in thickness in the case of improved heat resistance and mechanical robustness are also provided.

In yet another embodiment, such as can also be come by using the PVC film for being wherein dispersed with blue-green organic dyestuff Realize similar transmissison characteristic.The PVC film of organic dyestuff dipping can have the thickness less than 0.1mm.In another embodiment In, PVC film can have the thickness less than 1 mil.The thinness of PVC film can aid in the maximum for the light for making to be produced by equipment thoroughly Rate is penetrated more than 90%.In one or more embodiments, can use the combination of PVC base and blue-green organic dyestuff with Improved heat resistance and mechanical robustness are also provided in the case that thickness reduces.

In one embodiment, the polycarbonate membrane of organic dyestuff dipping can also have the phase under the thickness of the reduction The optical characteristics of prestige, it has up to 25 rads of the depth of parallelism and 0 to 30 ° of chief ray incidence angles.In preferable embodiment party In case, incidence angle is in the range of 0 to 26 °.The UV that the polycarbonate membrane of organic dyestuff dipping can further provide for improving inhales Luminosity, the optical density (OD) of its UV scope are more than 5.The example combinations for providing polycarbonate substrate and blue-green dyestuff are only used for showing Example purpose.It should be appreciated that any absorption compound being described below in detail can be with any of the above-described polymeric substrate knot Close to produce the film with desired mechanical performance and transmissivity.

The embodiment of filter 100 as described herein can be used for different applications, include but not limited to：As changing The filter of kind colour rendering and digital imagery, has very good mechanical properties, the LCD phase difference films of excellent UV absorbances, is used for Electronic equipment with reduce the light emitting of the light of potentially harmful wavelength reduce film, and with high laser radiation value optical correction it is thin Laser window.In these embodiments, filter can be manufactured with it is expected for each in the application Optical characteristics film.

In some embodiments, colour rendering index (CRT) change minimizes caused by disclosed invention.Example Such as, the difference of the CRI values before and after disclosed invention is applied to electronic equipment can be between 1 and 3.Therefore, When disclosed invention be applied to electronic equipment display when, watch display user will be seen that minimum (if If) color change, and all colours will keep visible.

Absorption and absorbing material

When light runs into compound, the absorption of the wavelength of light occurs.The light of light from light source and the wavelength phase changed Association, wherein each wavelength is associated from different energy.When illumination is mapped in compound, the energy from light can promote Electronics in the compound enters antibonding orbital.This excitation is occurred mainly in be enough to swash with the relevant energy of the light of specific wavelength When power generation and thus absorption energy.Therefore, the different compounds of the electronics with various configuration (configuration) Absorb the light of different wave length.In general, the energy needed for excitation electronics is bigger, the wavelength of institute's light requirement is lower.In addition, single compound The light of multiple wave-length coverages from light source can be absorbed, because single compound can have with electric existing for various configurations Son.

Fig. 2A shows equipment and eyes with the exemplary film to come in handy in one embodiment of the invention Between exemplary interaction.In one embodiment, film 200 includes the film being arranged in equipment 202, such as is used as and sells After add.In another embodiment, film 200 accounts for a part for equipment 202, such as the screen of equipment 202.In another embodiment party In case, film is the physical barriers being worn on or near eyes 250, such as contact lens, or it is used as a pair of glasses mirror A part for piece；Either as applying after sale or eyeglass part in itself.

As shown in Figure 2 A, equipment 202 produces the light of multiple wavelength, including high intensity UV light 210, blue violet light 212, bluish-green pine Stone light 214 and visible ray 218.In one embodiment, high intensity UV light can be included in the scope of 315nm to 380nm In wavelength light.The known light in this wave-length coverage may cause damage the crystalline lens of eyes.In an embodiment party In case, blue violet light 212 can be included in the light of the wavelength in 380nm to 430nm scopes, and known the age may be caused related Macular degeneration.Chalchite coloured light 214 can be included in the light in 430nm to 500nm scopes and known effect sleep week Phase and memory.Visible ray 218 can also include the light of other wavelength in visible spectrum.

As it is used herein, " visible ray " or " visible wavelength " refers in 380nm to the wave-length coverage between 750nm. " feux rouges " or " red light wavelength " refers in about 620nm to the wave-length coverage between 675nm." orange light " or " orange light wavelength " refers to About 590nm is to the wave-length coverage between 620nm." yellow light " or " yellow wavelengths " refers in about 570nm to the wavelength between 590nm Scope." green light " or " green wavelength " refers to the wave-length coverage in about 495nm to 570nm." blue light " or " blue light wavelength " refers to In about 450nm to the wave-length coverage between 495nm." purple light " or " violet wavelength " refers in about 380nm to the ripple between 450nm Long scope.As used herein, " ultraviolet " or " UV " refers to include being less than 350nm and the as low as wave-length coverage of the wavelength of 10nm. " infrared " or " IR " refers to include being higher than 750nm and the up to wave-length coverage of the wavelength of 3000nm.

When the light of specific wavelength is absorbed by compound, human eye will not be reached corresponding to the color of the specific wavelength, therefore It can't see.Thus, for example, in order to filter out the UV light from light source, compound can be introduced to absorbing wavelength less than 350nm's In the film of light.The list of some exemplary light absorption compounds for various wave-length coverages is given in following table 2, and And corresponding to the exemplary absorbent spectrum shown in Fig. 2 D.The absorbing material used in disclosed invention is realized to individual Protection, while keep the coloured image integrality of equipment.Therefore, absorption compound ideally only stops the wavelength model of each color The part enclosed so that each tone is still visible for watching the individual of the screen of electronic equipment.In addition, be blocked Wave-length coverage can be the wave-length coverage of the sightless color for people.Therefore, in some embodiments, it is disclosed Invention is the neutral density filter for allowing full color to identify.

Table 2：Absorbing material and wave-length coverage

In one embodiment, by selecting one kind in base material from the first row of table 2 and according to being used as use One is selected to absorb row from one of the 2nd row to the 4th row or more person in the wave-length coverage of the target of absorption to manufacture film 200.In one embodiment, when polymeric substrate contains UV inhibitor, UV stabilizer or is otherwise inherently associated with During UV absorbent properties, it is not necessary to the absorption compound of UV targets.Then the either rank in can additionally being arranged from the 2nd row to the 4th It is middle to select absorption compound to increase the absorption of the light produced in target wavelength range.Absorption compound can combine choosing Select, precondition is to maintain high light transmission, and keeps tone so that the color integrity produced by equipment keeps true. In one embodiment, absorption compound is provided with polymer or pellet form and is coextruded with polymeric substrate to produce film 200.In another embodiment, absorption compound is arranged in layer separated with polymeric substrate, such as is used as and is applying The component in coating on to polymeric substrate, or additional damage resistant layer.

Additionally, many exemplary compounds in exemplary compounds during the 2nd, 3 and 4 arrange described in each row can be with It is substituted to produce desired feature in other polymers base material.For example, although the conduct of compound 1002 is used for and poly- carbonic acid The desirable compounds of ester substrate combination and be listed, but also know compound 1002 as be used for impregnate PVC, acetal and cellulose The compatible compounds of ester.In the following embodiments may by some of the compound to being listed in table 2 and polymeric substrate Example combinations be explained in further detail.It is to be understood, however, that can have other possible combinations, including Combination with being listed on the polymeric substrate being no longer presented in table 1 in table 2.

In one embodiment, the organic dyestuff being dispersed in polymeric substrate provides selective transmission characteristic, including Such as reduce the transmissivity of blue light wavelength and/or red light wavelength.By the unnatural high emissivity of these of specific band or wavelength Level, which is reduced to, can more represent some harmful effects that the level of daylight contributes to reduction to use digital electronic device.In addition, light Film can reduce the HEV light in the range of being launched by equipment 202.However, in one embodiment, optical film 200 goes back quilt The light (such as cyan) of other blue light wavelengths is configured to allow for by keep the color rendering by equipment 202.

Makrolon embodiment

In one embodiment, film 200 includes the polycarbonate substrate for being impregnated with absorption compound 1002, absorbs chemical combination Thing 1002 is selected to for the light produced in 260nm into 400nm scopes.In one embodiment, absorption compound 1002 peaks being selected in 300nm to 400nm scopes absorb.A kind of exemplary absorbent compound is for example by Ciba What Specialty Chemicals were providedAlso referred to as 2- (2H- benzotriazole -2- bases)-paracresol.However, 300nm other any exemplary absorbent compounds with strong absorption characteristic into 400nm scopes are also suitable for absorbing UV light. Wherein useCome provide UV protection embodiment in, other polymers base material (such as listed in table 1 that Produced film 200 is also suitable for a bit).

In one embodiment, film 200 includes the polycarbonate substrate for being impregnated with absorption compound 1004, absorbs chemical combination Thing 1004 is selected to for the light produced in the range of 400nm to 700nm.In one embodiment, absorption compound 1004 peaks for being selected in the range of 400nm to 700nm absorb.Specifically, in one embodiment, chemical combination is absorbed The peak that thing 1004 is selected in 600nm to 700nm scopes absorbs.Even more specifically, in one embodiment, The peak that absorption compound is selected in 635nm to 700nm scopes absorbs.A kind of exemplary absorbent compound be byProprietary (proprietary) compound of the trade name ABS 668 of production.However, in visible spectrum 600nm other any exemplary absorbent compounds with strong absorbent into 700nm scopes can also be suitable for produced film 200.In another embodiment, the polymeric substrate that compound 1004 can also be different with what it is from table 1 combines.

In one embodiment, film 200 includes the polycarbonate substrate for being impregnated with absorption compound 1006, absorbs chemical combination Thing 1006 is selected to for the light produced in infra-red range.In one embodiment, 1006 quilt of absorption compound is selected It is chosen to for the light produced in the range of 800nm to 1100nm.Specifically, in one embodiment, absorption compound 1006 peaks being selected in 900nm to 1000nm scopes absorb.A kind of exemplary compounds can be by QCR The NIR1002A dyestuffs of Solutions Corporation productions.However, in infra-red range with strong absorbent it is any its He can also be suitable for produced film 200 at exemplary absorbent compound.In another embodiment, compound 1006 can also be with coming From the different polymeric substrate combinations of table 1.

In one embodiment, polymeric substrate is impregnated with the combination of compound 1002,1004 and 1006 so that chemical combination Any both of which in thing 1002,1004 and 1006 is included to form film 200.In another embodiment, compound 1002, All three combinations in 1004 and 1006 are in polymeric substrate to form film 200.

In another embodiment, polycarbonate substrate is together with compound 1002,1008,1022,1028,1040 or 1046 In any one be arranged on together in film 200.In one embodiment, its can with compound 1004,1010,1018, 1024th, any one combination in 1030,1036,1042 or 1048.In one embodiment, it can be with compound 1006th, any one combination in 1020,1026,1032,1038,1044 or 1050.

PVC filter embodiments

In one embodiment, film 200 includes polyvinyl chloride (PVC) base material for being impregnated with absorption compound 1008, inhales Compound 1008 is received to be chosen to for the light produced in the range of 260nm to 400nm.In one embodiment, chemical combination is absorbed The peak that thing 1008 is selected in 320nm to 380nm scopes absorbs.A kind of exemplary absorbent compound is by Adam The DYE VIS 347 of Gates＆Company, LLC production.However, there is strong absorption characteristic into 400nm scopes in 300nm Other any exemplary absorbent compounds are also suitable for absorbing UV light.Wherein UV protections are provided using DYE VIS 347 In embodiment, other polymers base material (such as those listed in table 1) is also suitable for produced film 200.

In one embodiment, film 200 includes the PVC base for being impregnated with absorption compound 1010, absorption compound 1010 are selected to for the light produced in the range of 400nm to 700nm.Specifically, in one embodiment, chemical combination is absorbed The peak that thing 1010 is selected in 550nm to 700nm scopes absorbs.Even more specifically, in one embodiment, The peak that absorption compound is selected in 600nm to 675nm scopes absorbs.A kind of exemplary absorbent compound be by The ADS640PP of American Dye Source, Inc. productions, also referred to as 2- [5- (1,3- dihydro -3,3- dimethyl -1- third Base -2H- indoles -2- subunits) -1,3- pentadienyls] -3,3- dimethyl -1- propyl group -3H- indoles perchlorate.However, There are the 600nm of visible spectrum other any exemplary absorbent compounds absorbed by force can also be suitable for into 700nm scopes Produced film 200.In another embodiment, the polymeric substrate that compound 1010 can also be different with what it is from table 1 combines.

In one embodiment, polymeric substrate is impregnated with the combination of compound 1008 and 1010.In another embodiment party In case, PVC base is arranged on together with any one in compound 1002,1008,1022,1028,1040 or 1046 In film 200.In one embodiment, its can with compound 1004,1010,1018,1024,1030,1036,1042 or Any one combination in 1048.In one embodiment, its can with compound 1006,1020,1026,1032,1038, Any one combination in 1044 or 1050.

Epoxy resin embodiment

In one embodiment, film 200 includes the epoxy resin base material for being impregnated with absorption compound 1016, absorbs chemical combination Thing 1016 is selected to for the light produced in the range of 260nm to 400nm.In one embodiment, absorption compound 1016 peaks being selected in 300nm to 400nm scopes absorb.Specifically, in one embodiment, chemical combination is absorbed The peak that thing 1016 is selected in 375nm to 410nm scopes absorbs.A kind of exemplary absorbent compound be for example by The ABS 400 of Exciton productions, it has peak absorbance at 399nm.However, have in 300nm into 400nm scopes strong Other any exemplary absorbent compounds of absorption characteristic are also suitable for absorbing UV light.Wherein UV is provided using ABS 400 In the embodiment of protection, other polymers base material can also be suitable for produced film 200 as listed in table 1.

In one embodiment, film 200 includes the epoxy resin base material for being impregnated with absorption compound 1018, absorbs chemical combination Thing 1018 is selected to for the light produced in the range of 400nm to 700nm.In one embodiment, absorption compound 1018 peaks being selected in 400nm to 700nm scopes absorb.Specifically, in one embodiment, chemical combination is absorbed The peak that thing 1018 is selected in 600nm to 700nm scopes absorbs.Even more specifically, in one embodiment, The peak that absorption compound is selected in 650nm to 690nm scopes absorbs.A kind of exemplary absorbent compound be by QCR Solutions Corporation production trade name VIS675F and in chloroform 675nm at have peak absorption Proprietary compound.However, in the 600nm of visible spectrum, into 700nm scopes, other are exemplary for any with strong absorbent Absorption compound can also be suitable for produced film 200.In another embodiment, compound 1018 can also with from table 1 Different polymeric substrate combinations.

In one embodiment, film 200 includes the epoxy resin base material for being impregnated with absorption compound 1020, absorbs chemical combination Thing 1020 is selected to for the light produced in infra-red range.In one embodiment, 1020 quilt of absorption compound is selected It is chosen to for the light produced in the range of 800nm to 1100nm.Specifically, in one embodiment, absorption compound 1020 peaks being selected in 900nm to 1080nm scopes absorb.In one embodiment, absorption compound be by QCR Solutions Corporation production trade name NIR1031M and in acetone 1031nm at have peak suction The proprietary compound received.However, other any exemplary absorbent compounds with strong absorbent can also in infra-red range It is suitable for produced film 200.In another embodiment, the polymeric substrate that compound 1020 can also be different from what it is from table 1 Combination.

In one embodiment, polymeric substrate is impregnated with the combination of compound 1016,1018 and 1020 so that chemical combination Any both of which in thing 1016,1018 and 1020 is included to form film 200.In another embodiment, compound 1016, All three in 1018 and 1020 are combined in polymeric substrate to form film 200.

In another embodiment, epoxy resin base material is together with compound 1002,1008,1022,1028,1040 or 1046 In any one be arranged on together in film 200.In one embodiment, its can with compound 1004,1010,1018, 1024th, any one combination in 1030,1036,1042 or 1048.In one embodiment, it can be with compound 1006th, any one combination in 1020,1026,1032,1038,1044 or 1050.

Polyamide embodiment

In one embodiment, film 200 includes the polyamide substrate for being impregnated with absorption compound 1022, absorption compound 1022 are selected to for the light produced in the range of 260nm to 400nm.In one embodiment, absorption compound 1022 The peak being selected in 260nm to 350nm scopes absorbs.A kind of exemplary absorbent compound is for example by QCR The name of product of Solutions Corporation productions is UV290A.However, there is strong inhale into 400nm scopes in 260nm Other any exemplary absorbent compounds 1022 for receiving characteristic are also suitable for absorbing UV light.Wherein UV is provided using UV290A In the embodiment of protection, other polymers base material (such as those listed in table 1) is also suitable for produced film 200.

In one embodiment, film 200 includes the polyamide substrate for being impregnated with absorption compound 1024, absorption compound 1024 are selected to for the light produced in the range of 400nm to 700nm.In one embodiment, absorption compound 1024 The peak being selected in 600nm to 700nm scopes absorbs.Specifically, in one embodiment, absorption compound 1024 peaks being selected in 620nm to 700nm scopes absorb.A kind of exemplary absorbent compound is by Adam The proprietary compound of the trade name DYE VIS 670 of Gates＆Company, LLC production, it also has in 310nm to 400nm Between absworption peak.However, in the 600nm of visible spectrum, into 700nm scopes, other are exemplary for any with strong absorbent Absorption compound can also be suitable for produced film 200.In another embodiment, compound 1024 can also with from table 1 Different polymeric substrate combinations.

In one embodiment, film 200 includes the polyamide substrate for being impregnated with absorption compound 1026, absorption compound 1026 are selected to for the light produced in infra-red range.In one embodiment, select absorption compound 1026 selected It is selected to for the light produced in the range of 800nm to 1200nm.Specifically, in one embodiment, absorption compound 1026 The peak being selected in 900nm to 1100nm scopes absorbs.A kind of exemplary absorbent compound is by QCR The proprietary compound that the name of product of Solutions Corporation productions is NIR1072A, it is in acetone in 1072nm Place has absworption peak.However, other any exemplary absorbent compounds with strong absorbent can also fit in infra-red range Together in produced film 200.In another embodiment, the polymeric substrate group that compound 1026 can also be different from what it is from table 1 Close.

In one embodiment, polymeric substrate is impregnated with the combination of compound 1022,1024 and 1026 so that chemical combination Any both of which in thing 1022,1024 and 1026 is included to form film 200.In another embodiment, compound 1022, All three in 1024 and 1026 are combined in polymeric substrate to form film 200.

In another embodiment, by polyamide substrate together with compound 1002,1008,1022,1028,1040 or 1046 In any one be arranged on together in film 200.In one embodiment, its can with compound 1004,1010,1018, 1024th, any one combination in 1030,1036,1042 or 1048.In one embodiment, it can be with compound 1006th, any one combination in 1020,1026,1032,1038,1044 or 1050.

Polyester embodiment

In one embodiment, film 200 includes the polyester base material for being impregnated with absorption compound 1036, absorption compound 1036 are selected to for the light produced in the range of 400nm to 700nm.In one embodiment, absorption compound 1036 The peak being selected in 600nm to 750nm scopes absorbs.Specifically, in one embodiment, absorption compound 1036 peaks being selected in 670nm to 720nm scopes absorb.A kind of exemplary absorbent compound is The proprietary compound of the trade name ABS 691 of production, it has absworption peak in makrolon at 696nm.However, can Other any exemplary absorbent compounds that see the 600nm of spectrum has strong absorbent into 700nm scopes are also suitably adapted for giving birth to Film forming 200.In another embodiment, the polymeric substrate that compound 1036 can also be different with what it is from table 1 combines.

In one embodiment, film 200 includes the polyester base material for being impregnated with absorption compound 1038, absorption compound 1038 are selected to for the light produced in infra-red range.In one embodiment, absorption compound 1038 is selected to For the light produced in the range of 800nm to 1300nm.Specifically, in one embodiment, absorption compound 1038 is selected It is selected to absorb for the peak in 900nm to 1150nm scopes.A kind of exemplary absorbent compound 1038 is by Adam Gates＆ Company, LLC production name of product be IR Dye 1151 proprietary compound, its in methyl ethyl ketone (MEK) There is absworption peak at 1073nm.However, there are other any exemplary absorbent compounds of strong absorbent in infra-red range It may adapt to produced film 200.In another embodiment, the polymer that compound 1038 can also be different from what it is from table 1 Substrate combination.

In one embodiment, polymeric substrate is impregnated with the combination of compound 1036 and 1038.In another embodiment party In case, polyester base material is arranged on together with any one in compound 1002,1008,1022,1028,1040 or 1046 In film 200.In one embodiment, this can with compound 1004,1010,1018,1024,1030,1036,1042 or Any one combination in 1048.In one embodiment, this can with compound 1006,1020,1026,1032,1038, Any one combination in 1044 or 1050.

Polyethylene embodiment

In one embodiment, film 200 includes the polyethylene base material for being impregnated with absorption compound 1042, absorption compound 1042 are selected to for the light produced in the range of 400nm to 700nm.In one embodiment, absorption compound 1042 The peak being selected in 600nm to 750nm scopes absorbs.Specifically, in one embodiment, absorption compound 1042 peaks being selected in 670nm to 730nm scopes absorb.A kind of exemplary absorbent compound be by The proprietary compound of the trade name LUM690 of Moleculum productions, it has absworption peak in chloroform at 701nm.However, It can also be adapted in other any exemplary absorbent compounds that the 600nm of visible spectrum has strong absorbent into 700nm scopes In produced film 200.In another embodiment, the polymeric substrate that compound 1042 can also be different with what it is from table 1 combines.

In one embodiment, film 200 includes the polyethylene base material for being impregnated with absorption compound 1044, absorption compound 1044 are selected to for the light produced in infra-red range.In one embodiment, absorption compound 1044 is selected to For the light produced in the range of 800nm to 1100nm.Specifically, in one embodiment, absorption compound 1044 is selected It is selected to absorb for the peak in 900nm to 1100nm scopes.A kind of exemplary absorbent compound is the business of Moleculum productions The name of an article is the proprietary compound of LUM1000A, it has absworption peak in chloroform at 1001nm.However, have in infra-red range Other any exemplary absorbent compounds for having strong absorbent can also be suitable for produced film 200.In another embodiment, change Compound 1044 can also be different with what it is from table 1 polymeric substrate combine.

In one embodiment, polymeric substrate is impregnated with the combination of compound 1040,1042 and 1044 so that chemical combination Any both of which in thing 1040,1042 and 1044 is included to form film 200.In another embodiment, compound 1040, All three in 1042 and 1044 are combined in polymeric substrate to form film 200.

In another embodiment, polycarbonate substrate is together with compound 1002,1008,1022,1028,1040 or 1046 In any one be arranged on together in film 200.In one embodiment, this can with compound 1004,1010,1018, 1024th, any one combination in 1030,1036,1042 or 1048.In one embodiment, this can be with compound 1006th, any one combination in 1020,1026,1032,1038,1044 or 1050.

Other exemplaries

Blue-green organic absorbent compound can be selected to provide selective transmission and/or the decay at required wavelength (such as by relative to feux rouges decay blue light).Blue-green organic dyestuff can include such as blue-green phthalocyanine dye, blue-green Phthalocyanine dye is suitable for plastic applications and provides good transmission of visible light, photostability and have molten more than 170 DEG C The heat endurance of point.The polycarbonate compound of organic dyestuff dipping can include about 0.05% to 2% suction by weight Receive compound.Blue-green phthalocyanine dye can be the powder type that can be dispersed in extrusion in melt polycarbonate. Before extrusion, blue-green dyestuff can also be dispersed in polycarbonate resin pearl.

In another embodiment, one or more of other dyestuffs can be dispersed in film.In order to increase infrared guarantor Shield, it is, for example, possible to use extra IR filter dyes provide the optical density (OD) of 9 or bigger in IR scopes.IR filter dyes An example can include LUM1000A.The polycarbonate blend of organic dyestuff dipping can include by weight about 0.05% to 2% absorption compound.

In one embodiment, the filter for digital electronic device is equipped with the electromagnetic radiation transmission spy of restriction Property, it has selective transmission at visible wavelength.In one embodiment, filter is designed to stop or reduces multiple The transmission of light in wave-length coverage for example in both blue wavelength range and red wavelength range.Filter can be used for various Using including but not limited to filter, the light emitting for electronic equipment reduce film and LCD phase difference films.In an embodiment party In case, filter is by including the composite material system of the organic dyestuff for being dispersed in or being immersed in polymeric substrate such as polycarbonate membrane Into.In another embodiment, any one or more kind polymeric substrate can be in table 1 above.

As shown in Figure 2 A, by the light 210,212,214 and 218 of 202 generation wavelength of equipment.In one embodiment, this Then the light of a little wavelength runs into film 200.When the light of the wavelength runs into film 200, film 200 is configured to allow only some wavelength Light pass through.For example, in an embodiment as shown in Figure 2 A, UV light is substantially prevented by film 200.Blue-violet light Also it is substantially prevented by film 200.Chalchite coloured light 214 is prevented to pass through film 200 at least in part, while is allowed The blue light wavelength 216 of other scopes passes through.In one embodiment, these can include the light of the wavelength in cyan scope. However, in one embodiment, it is allowed to which the visible ray 218 that may watch user safety passes through film.In an embodiment In, once the wavelength of light has run into and has passed through film 200, then and they are perceived by the human eye of the user using equipment 202. In one embodiment, as shown in Figure 2 A, it is known that the region 252 of eyes is influenced be subject to the height of UV light, and known eyes Region 254 is influenced be subject to the height of blue light.By being inserted into film 200 between equipment 202 and eyes 250, thus substantially prevent The eyes of user may be reached to the light of the eye damage in region 252 and 254.

Fig. 2 B show that the exemplary significant wave of the multiple films to come in handy in one embodiment of the invention is apneusis Receive scope.In one embodiment, film 200, which can include, is configured to absorb the light in one or more wave-length coverages One or more of absorption compounds.In one embodiment, the possible envelope 272 of a certain range of wavelength stops, wherein At least some light envelopes 272 in 300nm to 400nm scopes stop in order to avoid reach the eyes of user, but wavelength spectrum Remainder is essentially unaffected.In another embodiment, film 274 is substantially reduced in 300nm into 500nm scopes Light reaches the eyes of user, but the remainder of wavelength spectrum is essentially unaffected.In another embodiment, film 276 is basic Light of the upper reduction in 300nm to 650nm scopes reaches the eyes of user, but the remainder of wavelength spectrum is substantially from shadow Ring.In yet another embodiment, film 278 reduces the eyes that light quantity in 300nm to 3000nm scopes reaches user, but ripple The remainder of long spectrum is substantially unaffected.According to the condition of the user of Different Effects equipment 202, can by different films 272, 274th, 276 and 278 equipment 202 applied to user, to treat or prevent medical conditions.

Fig. 2 C and above embodiment illustrate to can be used alone or combine in one embodiment of the invention to make Multiple absorption compound spectrum, to realize the required characteristic of film.In one embodiment, the absorbent shown in Fig. 2 C In one or more be immersed in polymeric substrate with the transmissivity needed for realizing.

In one embodiment, film 272 is configured to substantially stop 99.9% UV light, 15% to 20% HEV Light and 15% to 20% photosensitive (PS) light.In one embodiment, film 272 includes the UV that thickness is at least 5 mils and suppresses Polycarbonate substrate.In one embodiment, thickness is less than 10 mils.In one embodiment, film 272 also includes UV Suppressant additive, it accounts at least the 1% of film 272.In one embodiment, UV suppressant additives account at least the 2% of film, but small In the 3% of film 272.In one embodiment, film 272 further includes hard conating.In one embodiment, film 272 can also Be characterized as being with 280nm into 380nm scopes at least 3,380nm into 390nm scopes at least 0.7, in 390nm extremely At least 0.15 in 400nm scopes, 400nm into 600nm scopes at least 0.09 and 600nm into 700nm scopes at least 0.04 optical density (OD).

In one embodiment, film 274 substantially stop 99.9% UV light, 30% to 40% HEV light and 20% to 30% PS light.In one embodiment, film 274 includes the UV suppression polycarbonate substrates that thickness is at least 5 mils.One In a embodiment, thickness is less than 10 mils.In one embodiment, film 274 also includes UV suppressant additives, it accounts for film At least the 1% of 274.In one embodiment, UV suppressant additives account at least the 2% of film, but less than the 3% of film 274.One In a embodiment, film 274 also includes phthalocyanine dye, it accounts at least the 0.0036% of film 274.In one embodiment, phthalein Cyanine dyes accounts at least the 0.005% or at least 0.008% of film 274, but less than the 0.01% of film.In one embodiment, film 274 include hard conating.In one embodiment, film 274 can also be characterized as being with 280nm into 380nm scopes extremely Few 4,380nm into 390nm scopes at least 2,290nm into 400nm scopes at least 0.8, in 400nm to 600nm scopes In be at least 0.13 and 600nm into 700nm scopes at least 0.15 optical density (OD).

In one embodiment, film 276 stops 99.9% UV light, 60% to 70% HEV light and 30% to 40% Photosensitive (PS) light.In one embodiment, film 276 includes the UV suppression polycarbonate substrates that thickness is at least 5 mils. In one embodiment, thickness is less than 10 mils.In one embodiment, film 276 also includes UV suppressant additives, it is accounted for At least the 1% of film 276.In one embodiment, UV suppressant additives account at least the 2% of film, but less than the 3% of film 276. In one embodiment, film 274 also includes phthalocyanine dye, it accounts at least the 0.005% of film 274.In one embodiment, phthalein Cyanine dyes accounts at least the 0.01% or at least 0.015% of film 276, but less than the 0.02% of film 276.In one embodiment, Film 276 includes hard conating.In one embodiment, film 276, which can also be characterized as being, has in 280nm into 380nm scopes At least 4,380nm into 390nm scopes at least 2,290nm into 400nm scopes at least 0.8, in 400nm to 600nm models Enclose at least 0.13 and 600nm into 700nm scopes at least 0.15 optical density (OD).

In one embodiment, film 278 stops 99% UV light, 60% to 70% HEV light and 30% to 40% PS light.In one embodiment, film 278 includes the UV suppression PVC films that thickness is at least 8 mils.In one embodiment, Thickness is at least 10 mils or at least 15 mils, but is less than 20 mil thicks.In one embodiment, film 278 further includes elasticity Body.

In one embodiment, film is configured to the ultraviolet in 200nm to 315nm scopes of substantially stop 99% Light, 99% ultraviolet light and about 10% PS light (that is, the light near 555nm) in 315nm to 380nm scopes. In one embodiment, film is configured to permit up to 65% visible ray (that is, the light in the range of from 380nm to 780nm) logical Cross.In some embodiments, which can stop different amounts of blue light.For example, the film, which can have, stops 15% blue light Layer, the layer for stopping 30% blue light, the layer for stopping 60% blue light or its combination.In one embodiment, it is close for 7 to include thickness for film The UV of ear to 9 mils suppresses film.

Fig. 3, which is depicted, shows the transmissivity for the various films in an embodiment for use in the present invention as wavelength Function figure.In one embodiment, the absorption spectrum 300 and general standing film (generic manufactured by Nabi Stock film) it is associated.Absorption spectrum 302 can be associated with another standing film provided by Nabi.Absorption spectrum 304 Can be associated with Armor brand films.In one embodiment, absorption spectrum 306 can be associated with film 272.At one In embodiment, absorption spectrum 308 can be associated with film 276.In the embodiment that another includes elastomer, light is absorbed Spectrum 310 can be associated with film 278.In one embodiment, absorption spectrum 312 can be associated with film 274.Such as Fig. 3 institutes Show, the reduction of the absorption spectrum produced using any one generation in film 272,274,276 or 278 by equipment.For example, absorb Spectrum 306 shows that the maximum transmission rate in blue light range is about reduced to 0.37 from 1.00.Therefore, by film 272,274,276 or Any one in 278, which is applied to equipment (such as equipment 202), can cause the light of harmful light in the range of known wavelength Reduce, and therefore reduce any one in the problem of above-mentioned multiple eyes are related.

In one embodiment, any one in the film shown in application drawing 3 provides slave device to the light of user Measurable change of transmission, as shown in Table 3 below.Table 3 is shown after by indicated application film in each ripple The percentage of remaining energy in long scope.

Table 3：The remaining energy after film application

As shown in upper table 3, any film in film as described herein is in the light and eyes produced by equipment such as equipment 202 After being filtered between 250, there is provided the energy retained in multiple wave-length coverages substantially reduces.Film 272,274,276 The UV light launched by equipment 202 is almost absorbed with 278.

In one embodiment, the film such as film 272,274,276 or 278 of organic dyestuff dipping can be with rectangle or square The form of diaphragm provides, as shown in Figure 1 C.Then the filter of one or more required shapes can be cut from film.Such as figure Shown in 1A, for example, an embodiment of optical film can include the rectangular shape for smart phone, it is intelligence that it, which has, The circle that the button of energy phone removes.In another embodiment, filter can include circular filter design, such as to cover The magazine digital image sensor of lid mobile phone or other electronic equipments.In yet another embodiment, filter is with the shape of piece Formula is provided to manufacturer or user, so that film can be cut into required size by manufacturer or user.In another embodiment party In case, film is provided with adhesive lining so that can really be sized and be then attached to desired equipment.

One or more other material layers or coating can also be set on film.For example, in transport or during use, Extra material layer can include hard conating with protective film.Transmissivity can be changed by applying certain antireflective property to film It is kind, when being included in any other coating (in one embodiment including hard conating) of application.The film can also or alternatively With the anti-dazzle coating applied or the viscous coating applied.

According to a kind of manufacture method, organic dyestuff is manufactured, organic dyestuff is dispersed in membrane material (such as in an embodiment party It is makrolon in case) in, pill is mixed into, and then extruded using the commonly known technology of those skilled in the art Into film.Therefore the film composition of organic dyestuff dipping can be provided in the form of pill, or squeezing on roller can be arranged on The form of membrane provides, and is then cut out size according to concrete application.

The method for producing light absorping film

Fig. 4 A to Fig. 4 C depict the light absorping film for being used for generation and being used for equipment of an embodiment according to the present invention A variety of methods.As shown in Figure 4 A, method 400 starts from frame 402, the equipment that wherein user obtains them.The equipment can be Smart phone, laptop, tablet computer or other luminaires such as equipment 102.Then user obtains and applies film such as film 100, as provided in block 404.User can be based on specific eyes problem or to prevent one or more specific eyes related The expectation of problem carrys out selective membrane 100.After user obtains equipment, such as film 100 can be applied by using adhesive phase. Adhesive phase can be to find on caudacoria on sale such as film 272,274,276 or 278.

As shown in Figure 4 B, method 410 shows the method that the manufacturer for equipment provides a user safer screen, Wherein safer screen includes the film with the property as above with respect to the description of film 272,274,276 and/or 278. In one embodiment, method 140 starts from frame 420, and wherein manufacturer's production is with one or more of absorption compounds The screen of combination.In one embodiment, dyestuff can in those described above any one, to reduce the spy from equipment The transmission of the light of standing wave length.Manufacturer can manufacture screen so that dye-impregnated is interior in itself in screen, not as single Film is applied on screen.This method then at frame 422 continue, wherein manufacturer for example using any appropriate mechanism, such as By using adhesive, screen is applied to equipment.In one embodiment, this method and then the continuation at frame 424, wherein Manufacturer provides a user equipment, this can be included by sale or other transaction.

Fig. 4 C show the method for being used to manufacture the film with specific absorption characteristic of embodiment according to the present invention. In one embodiment, method 430 wherein selecting for the film wavelength to be absorbed, or otherwise presses down since frame 440 Make the eyes that they reach user.Then this method continues at frame 442, wherein the one or more of absorption compounds of selection with Selected wave-length coverage is absorbed, such as from table 1 above.This method and then the continuation at frame 444, wherein selecting appropriate film Substrate.Appropriate film substrate can be the screen of an equipment.In another embodiment, suitable film substrate can be and institute Select one kind in the compatible any series polymer of dyestuff.In one embodiment, user can be first for example based on equipment Characteristic selects appropriate film, then selects appropriate dyestuff, thus inverts the order of frame 442 and frame 444.

Method 430 continues at frame 446, wherein the film of manufacture dye-impregnated.In one embodiment, this may relate to The coextrusion of film and a variety of absorption compounds.Film can be used as a series of resin beads to provide, and can be with including required absorption A series of resin beads mixing of compound.In alternative embodiment, absorption compound can be provided as liquid solution.So And other any appropriate mechanisms for being used to manufacture the film of dye-impregnated can also be used at frame 446.In an embodiment In, it is also possible to it is expected the other processing applied for film progress, such as reduce dazzle or privacy screen characteristics.In another reality Apply in scheme, film can be processed into hard conating, or can be processed into viscous coating.In an embodiment In, it can be provided at frame 448 any or whole in these processing.

In one embodiment, method continues at frame 450, and wherein film such as film 100 is provided to equipment, such as sets Standby 102.As it was previously stated, this, which may relate to manufacturer, uses appropriate fabrication schedule by such as screen of the screen with desired characteristic 102 apply to equipment 100.It can also include the film after sale of dye-impregnated being supplied to user, and then user for example passes through elder generation Film is applied in equipment by the method 400 and 410 of preceding description.

In an embodiment of the method for producing the light absorping film for equipment, by the way that multiple coatings are stacked in that The film is manufactured at the top of this.More specifically, the film can be formed by several layers, such as but dull finishing coat, blueness dye are not limited to The bed of material, polyethylene terephthalate (hereinafter referred to as " PET ") layer, UV protective layers, contact adhesive are (hereinafter referred to " PSA ") and lining.

In some embodiments, the first layer (it is the top layer in final embodiment) of application is dull finishing coat.It is mute Finish coat varnish can provide anti-dazzle feature, can be oil resistant, and can include anti-fingerprint property.In addition, dull finishing coat may It can stop a small amount of high-energy visible ray, such as blue light.In one embodiment, dull finishing coat includes the turbidity of description film Haze factor.It is desirable that haze factor is about 3%, with viewing of the obstruction free user to device screen.But haze factor 26% may be up to.Some embodiments of disclosed film do not include dull finishing coat, or without finishing coat or with transparent Hard conating.

The next layer that can apply is blue dyes.Blue dye layer can stop the high-energy visible ray of various amounts, such as Blue light.For example, blue dye layer can stop 30% blue light, and can be cold blue in color.In another implementation In example, blue dye layer can stop 60% blue light, and can be glaucous in color.If add blue dyes Layer is used as first layer, and blue dye layer can also include the characteristic that can serve as hard conating.However, some embodiments will Any one in these blue dye layers is not included.

In spite of including blue dye layer, next layer is all the pet layer for stopping about 15% blue light.Therefore, which can With the layer with the blue light for stopping 30% and the other layer of the blue light of stop 15%, or it can be limited to stop 15% indigo plant One layer of light.Pet layer is preferably transparent and does not contain tone.If film does not have dull finishing coat or blue dye layer, then Pet layer is also used as finishing coat, and can include the property of protection remainder layer.

The next layer being added on pet layer is the UV protective layers for the UV light that can stop at least 99%.UV protective layers can be with Arbitrary characteristics in as characterized above.At UV layers of top, PSA such as organosilicon PSA can be applied.Adhesive can be configured Into causing it preventing from forming bubble between film and equipment during film is applied to equipment.In some embodiments, film can be with Do not include adhesive phase.For example, using adhesive by film apply to giant-screen electronic equipment (such as：Computer display Device) it is probably infeasible, therefore different attachment methods is used, such as the clip by film folder over the display.

After adhesive phase or UV layers are applied, in white paper gasket and/or transparent printable lining can be applied to Top is to protect computer-oriented layer, no matter computer-oriented layer is UV layers or PSA.This prevent film to be attached to electricity It is attached to before sub- equipment on any object or in dust and chip.

In one embodiment, such as when as filter, the film of organic dyestuff dipping allows in specific wavelength (example As close to visible wavelength spectrum end) place object penetrating cut-off.In this applications, curve should further increase visible ray The overall transmissivity of wavelength such as red light wavelength.In one embodiment, using organosilicon as light absorber, correction is passed through Absorption at red light wavelength and blue light wavelength is uneven, and the realistic colour that filter can improve digital image sensor reproduces, So as to the picture quality improved by improved color definition.

Consistent with another embodiment when as LCD phase difference films, the film of organic dyestuff dipping provides required optics Property, such as the selective visible wavelength at 0 to 30 ° or 0 to 26 ° of incidence angle chief ray and 50% transmission cut-off, and small Excellent mechanical robustness under 0.01mm thickness.Substantially, pigment as some dyestuffs being applied dyestuff or base material During tend to stay on surface.Disclosed product includes dye granule on whole supporting substrate, therefore hits base The light of material collides the somewhere in by base material way and dye granule.Therefore, in one embodiment, base material is designed to It is safe under 30 ° of minimum incident angle.The LCD phase difference films can also be provided than other routine LCD phase difference films more Good UV absorptivities.

Consistent with another embodiment when reducing film as light emitting, the film of organic dyestuff dipping, which is reduced, comes from electronics The light emitting for the specific wavelength that the possibility of equipment is harmful to user.Light emitting reduce film can reduce Electromagnetic Launching peak value and tiltedly Rate (for example, in blue light range, green range and orange light scope), will be seen that the emission spectrum in optical range normalizes.Hair Penetrating spectrum can be normalized, such as between 0.0034 to 0.0038.These optical characteristics can be provided in most thin base material Maximum suppression across visible ray and near infrared range to harmful radiation, while the visible transmission for still meeting industrial standard will Ask.

Although LCD display is shown in the drawings, at least some embodiments of the present invention can be applied to profit With the equipment of different display generation techniques, such as cathode-ray tube (CRT) or light emitting diode (LED) display.

It is bound to electronic equipment

As described above, in some embodiments, protective film includes the combination of polymeric substrate, and to absorb by equipment The amount of the harmful light of generation includes absorption compound.However, in other embodiments, absorption compound and polymeric substrate can To be bound to during manufacture in the screen layer of equipment, as shown in Fig. 5 C to Fig. 5 F and Fig. 5 H so that electronic equipment is manufactured Into with the protection prevented built in these harmful light.

Following description is designed to appended Fig. 5 A to Fig. 5 H.However, pass through capacitive grid layer although being directed to 506 equipment with touch screen capability provided describe the present embodiment, but it is to be understood that at least some realities of the invention The scheme of applying can be applied to the equipment without touch screen capability.In addition, although LCD display is shown in the drawings, still At least some embodiments of the present invention can be applied to the equipment using different display generation techniques.For example, cathode-ray It is possible to manage (CRT) or light emitting diode (LED) display.

In one embodiment, as fig. 5 a and fig. 5b, the screen bag number layer glass and/or plastics of electronic equipment. These layers may be configured to provide additional function, such as touch screen function, and protect equipment from the infringement that uses.Fig. 5 A The exemplary screen for the digital device being made of five layers is shown with Fig. 5 B：LCD layer 510, glassy layer 508, capacitive grid layer 506th, flexible protective lid 504 and face coat 502.The equipment can be condenser type equipment, such as have the mobile phone of touching sensitive screen Or tablet computer.The equipment can also be another form of display device, such as but be not limited to the electricity with non-capacitive screen Depending on machine.In addition, the form for the headwear that the user that the equipment can be an exposure under light wears, such as glasses or contact lense Piece.

In one embodiment, as shown in Fig. 5 C and Fig. 5 D, one or more of inhale can be set in polymeric layer Compound is received to produce absorbing membranous layer 512, absorbing membranous layer 512 be inserted in one of layer of screen for forming electronic equipment (such as Before on Fig. 5 A and Fig. 5 B shown in layer), as shown in Fig. 5 C and Fig. 5 D, absorbing membranous layer 512 can be applied in LCD layer 510 Between glassy layer 508.However, in another embodiment, absorbing membranous layer 512 can be applied in glassy layer 508 and capacitance Between clathrum 506.In another embodiment, absorbing membranous layer 512 can be applied in capacitive grid layer 506 and flexible protective Between lid 504.In another embodiment, absorbing membranous layer 512 can be applied in flexible protective lid 504 and face coat 502 Between.

In one embodiment, absorbing membranous layer 512 can be inserted in times for the screen for forming electronic equipment as film layer Apply between meaning layer, or be applied to as hard conating any one layer of the layer of the screen of composition electronic equipment.Another In one embodiment, absorbing membranous layer 512 can be used as hot coating or enamelled coating to apply.

In yet another embodiment, one or more absorbing membranous layers can be with the layer (example for the screen for forming electronic equipment Such as, previously with respect to the layer of Fig. 5 A and Fig. 5 B descriptions) combination.For example, four absorbing membranous layers 512 can be set so that they are shielding It is adapted between each layer in five layers of curtain.However, in another embodiment, it is at least some in five layers of screen Two or three absorbing membranous layers 512 are set between layer.

Absorbing membranous layer 512 can include at least one polymeric substrate.In one embodiment, selected polymer Base material absorbs the light of desired wavelength.However, in another embodiment, all institutes are absorbed using other absorption compound Need the light of wavelength.In yet another embodiment, several absorption compound can be realized with single polymers substrate combination Required protection.Fig. 5 G show the light wave from computer screen transmitting.Fig. 5 H show absorbing membranous layer 512, its absorb and because This stops that those specific light waves reach user.The several polymerization that can be used in one embodiment is provided in table 4 below The list of thing substrate.

Table 4：Polymeric substrates for absorbing film

In one embodiment, one of polymer selected from table 4 and the one or more of required target zone are inhaled Compound combination is received, it is as shown in table 5 below.The absorption compound listed in table 5 is alternatively used in the range of setted wavelength Some examples of the absorption compound of required protection.

Table 5：Absorbing material and wave-length coverage

In one embodiment, absorbing membranous layer 512 at least partially due to selected absorption compound and with slight Tone, and work as filter to reduce the light emitting from screen.In one embodiment, in CIE light sources Under D65, the absorbing membranous layer 512 with 7.75 mil thickness be with (L, a, B) value respectively for (90.24,12.64,3.54) and (X-Y-Z) value is the pale bluish green of (67.14,76.83,78.90).In another embodiment, due to the load of reduction, absorb Film layer 512 seems shallow.

In one embodiment, polymeric substrate and one or more of absorption compounds are mixed and is incorporated as pill and squeezes Go out, wherein then pill can be molded into absorbing membranous layer 512.Alternatively, they can be used for hot coating.In another reality Apply in scheme, by appointing in the layer of polymeric substrate and the screen of one or more of absorption compound extrusions or manufacture forming apparatus A part for meaning layer.

In one embodiment, between one or more layers of each layer in the layer of the screen of electronic equipment, It can ensure to be laminated together using binder compound.Binder compound can also provide sealing between layers.Cause This, can be by for bonding the viscous of screen layer instead of providing the protection to being harmful to optical wavelength as additional layers in screen Mixture provides protection.

Fig. 5 E and Fig. 5 F show the example of the digital device with reference to the light absorbing adhesive 514 with wavelength absorption characteristic Property screen.In one embodiment, as shown in Fig. 5 E and Fig. 5 F, one or more are provided with absorbent binder 514 Kind absorption compound, the absorbent binder 514 coat the top side or bottom side of the layer previously with respect to Fig. 5 A and Fig. 5 B descriptions. For example, as shown in Fig. 5 E and Fig. 5 F, can be applied as the adhesive that capacitive grid layer 506 is adhered to flexible protective lid 504 Add light absorbing adhesive 514.However, in another embodiment, the viscous of glassy layer 508 can be adhered to as by LCD layer 510 Mixture applies light absorbing adhesive 514.In another embodiment, it can be used as and glassy layer 508 is adhered to capacitive grid The adhesive of layer 506 applies light absorbing adhesive 514.In another embodiment, can apply light absorbing adhesive 514 makes Obtain it and flexible protective lid 504 is adhered to face coat 502.

In yet another embodiment, one or more of absorption compounds may be used as between each layer in five layers A part for adhesive.For example, light absorbing adhesive 514 can be the sole binder used between five layers.However, In another embodiment, light absorbing adhesive 514 can use between two layers or three layers of screen.In an embodiment party In case, selected scope of the selected absorption compound based on the optical wavelength to be stopped.For example, the absorption compound of selection can be with The 2nd from table 5 arranges to any one in the 4th row.

Light absorbing adhesive 514 can include at least one polymeric substrate.In one embodiment, it is selected poly- Compound base material absorbs the light of desired wavelength.However, in another embodiment, using other absorption compound to absorb There is the light of required wavelength.In another embodiment, can by several absorption compound and single polymers substrate combination with Protection needed for realizing.

In one embodiment, the absorption chemical combination that silicone adhesive can be listed with the 2nd row of table 5 into the 4th row Any compound in thing is used together.In one embodiment, during contact adhesive can be arranged with the 2nd row of table 5 to the 4th Any compound in the absorption compound listed is used together.In another embodiment, hotmelt can be with table 5 Any compound in the absorption compound that 2nd row are listed into the 4th row is used together.In another embodiment, acrylic acid Adhesive can be used together with any compound in the absorption compound that the 2nd row of table 5 are listed into the 4th row.

In one embodiment, it would be desirable to absorption compound be dissolved in the solvent based on ketone, preferably methyl ethyl ketone In can produce adhesive.Then the absorption compound that (miss) dissolved is lost with required binder compound.For example, In one embodiment, contact adhesive can be combined with the absorption compound being dissolved in the solvent based on ketone.At least one In a embodiment, this method includes at least one filtration step to remove undissolved absorption compound.In another embodiment party In case, this method includes adding extra solvent to dissolve and absorb compound again, so as to cause whole process caking.

In one embodiment, adhesive phase has slight color due to the absorption compound of at least part selection Adjust, and work as filter to reduce the light emitting from screen.In one embodiment, in CIE light sources D65 Under, the adhesive phase with 7.75 mil thickness be with respectively (L, a, B) value be (90.24, -12.64,3.54) and (X-Y- Z) value is the pale bluish green of (67.14,76.83,78.90).In another embodiment, adhesive phase due to reduction load and Seem more shallow.

In some embodiments, absorption compound can be arranged in one or more polymeric substrates with electronics The polarizing filter of screen integrates.For example, in the case of the electronic curtain with LCD screen, there are screen two polarizations to filter Light device, and absorption compound can be applied in the polarizing filter of screen one of on.In the case of a coating, absorptionization Compound can be arranged in polymeric substrate so that polarizing filter can be laminated with absorption compound.In another embodiment, Absorption compound can be bonded directly in two polarizing filters one of in.

As described above, absorption compound ideally only stops a part for the wave-length coverage of each color so that Mei Gese The individual of the screen for watching electronic equipment is adjusted still to be visible.Therefore, absorption compound is integrated into electronics wherein In the embodiment of device screen, the color with the part wavelength stopped by disclosed technology can be reinforced so that be permitted Perhaps it is brighter by the small range of absorption compound.

It is bound to virtual reality headphone

Although describing other embodiments on the equipment with the touch screen capability provided by capacitive grid, It is understood that at least some embodiments of the present invention can be applied to the equipment without touch screen capability.For example, In one embodiment, present invention could apply to or be integrated into virtual reality Headphone device, such as Fig. 6 A to Fig. 6 C It is shown, or it is configured to absorb the another type of head installing type glass equipment of the wavelength of the light produced by light source.

Virtual reality (VR) headphone is that user can be worn on their eyes to obtain immersion audiovisual experience Headwear.More specifically, VR headphones provide screen of several inches from user face.In addition, VR headphones It can prevent it from invading the visual field of user with shielding environment light.It is close due to screen, the eye of UV light and blue light close to user Eyeball, VR headphones bring the risk of uniqueness to user.Disclosed technology is unique to VR headphones, because It can stop these harmful wavelength.In some embodiments, because VR headphones stop ambient light interference screen, So the pigmentation or chemical constitution that are used in light absorbing material may interfere with the color experience of user, and it thus be accordingly used in VR The light absorbing material of headphone may change from the embodiment above.

Some virtual reality headphones include glasses, the frame combined with head phone or another hearing devices Frame or unit, and the mobile phone for serving as screen can be received.Such as institute in U.S. Patent No. 8,957,835 (' 835 patent) State, phone can be caught in headphone and user can be using the mobile applications on phone.Fig. 4 in ' 835 patents Show a kind of virtual reality headphone based on phone.As shown in Figure 6A, the present invention can be with this virtual reality head Headset is used in combination.In the present embodiment, light absorbing layer 602 can be built into the virtual reality wear-type before phone In the frame of earphone so that when light is transmitted from phone, it is necessary in the remainder by headphone and be delivered to use Light absorbing layer 602 is passed through before the eyes at family.Light absorbing layer 602 can embody any one in above-mentioned several properties.

In addition to using phone as screen, other virtual reality headphones have built-in screen panel.Example Such as, the Oculus Rift developed by Oculus VR use Organic Light Emitting Diode (OLED) panel for each eye. In these virtual reality headphones, light absorbing layer 602 can be included in before light display panel, such as Fig. 6 B and Fig. 6 C It is shown.Light absorbing layer 602 can be a pantostrat for covering eyes.In another embodiment, there can be two light absorbs Layer 602, each one light absorbing layer 602 of eyes.In some embodiments, each light absorbing layer 602 is tablet.In other realities Apply in scheme, each light absorbing layer 602 is bent around the inside of headphone.

Although there have been described herein the principle of the present invention, it will be understood by those skilled in the art that the description Only as example not as limiting the scope of the present invention.Except exemplary embodiment party illustrated and described herein Outside case, other embodiments can also be contemplated within the scope of the invention.The modification and replacement of those of ordinary skill in the art It is considered as within the scope of the invention.

Claims

1. a kind of display for electronic equipment, the display includes：

Liquid crystal display layer；

Glassy layer；

Capacitive grid layer；

Flexible protective coating；

Face coat；

Two polarizing filter layers；

Neutral density filter including light-absorbing compound and polymeric substrate；

Wherein：

The light-absorbing compound include organic phthalocyanine dye and be further selected from makrolon, PVC, epoxy resin, polyester, Polyethylene, polyamide and combinations thereof；

The neutral density filter stops at least a portion of UV wavelength range.

2. display according to claim 1, wherein the neutral density filter is described two polarizing filter layers At least one of on coating.

3. display according to claim 1, wherein the neutral density filter is incorporated in described two polarization filters In at least one of light device layer.

4. display according to claim 1, wherein the display panel filter wavelength.

5. display according to claim 1, wherein the neutral density filter generation value be about one to three it is aobvious Colour index changes.

6. display according to claim 1, wherein the neutral density filter stops wave-length coverage at 380 nanometers extremely At least 90% of light in 400 nanometers.

7. display according to claim 6, wherein the neutral density filter stops wave-length coverage at 415 nanometers extremely At least 10% of light in 555 nanometers.

8. display according to claim 7, wherein the neutral density filter stops wave-length coverage at 400 nanometers extremely At least 10% of light in 500 nanometers.

9. display according to claim 1, wherein it is that 67.14, y values are that the neutral density filter, which has x values, 76.83 and z values are 78.90 color.