CN109312909A - Micro-structural light guide plate and the device comprising the light guide plate - Google Patents
Micro-structural light guide plate and the device comprising the light guide plate Download PDFInfo
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- CN109312909A CN109312909A CN201780035979.8A CN201780035979A CN109312909A CN 109312909 A CN109312909 A CN 109312909A CN 201780035979 A CN201780035979 A CN 201780035979A CN 109312909 A CN109312909 A CN 109312909A
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- light
- light guide
- guide plate
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
- C03C3/105—Glass compositions containing silica with 40% to 90% silica, by weight containing lead containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
- C03C3/108—Glass compositions containing silica with 40% to 90% silica, by weight containing lead containing boron
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/045—Light guides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/77—Coatings having a rough surface
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
Abstract
Disclosed herein is light guide plates comprising: the glass baseplate with edge surface and light-emitting area, and the polymeric membrane comprising multiple micro-structures being arranged on light-emitting area.At least one light source can be connect with the edge surface of glass baseplate.Light guide disclosed herein can show optical attenuation and/or colour cast is reduced.Also disclose display device and light emitting device comprising the light guide plate.
Description
Cross reference to related applications
The application is according to 35 U.S.C. § 119 Serial No. 62/348,395 for requiring to submit on June 10th, 2016
The benefit of priority of U.S. Provisional Application, the application are received in full by reference based on content of the application
Enter herein.
Technical field
Display and light emitting device the present disclosure relates generally to light guide plate and comprising the light guide plate, more particularly, to
Glass light guide plate comprising micro-structural polymeric membrane.
Background technique
Liquid crystal display (LCD) be commonly used in various electronic devices, such as mobile phone, laptop, electronic tablet,
Television set and computer monitor.However, LCD is in terms of brightness, contrast, efficiency and visual angle compared with other display devices
It may be restricted.For example, still needing higher contrast, colour gamut in conventional LCD to compete with other display technologies
And brightness, while also to balance power requirement and plant bulk (such as thickness).
LCD may include the back light unit (BLU) for generating light, which then can be by conversion, filtering and/or polarization to generate
The image needed.BLU can be side-light type, such as it includes the light sources or backlight that are connected to the edge light guide plate (LGP)
Formula, such as it includes be arranged in the subsequent two-dimension light source array of LCD panel.Straight-down negative BLU can have compared to side-light type BLU
Dynamic contrast obtains the advantages of improving.For example, the display with straight-down negative BLU can be independently adjustable the brightness of each LED
To optimize the dynamic range of the brightness on image.This is commonly known as local dimming.However, in order to obtain required optical uniformity
And/or hot spot in straight-down negative BLU is avoided, light source can be made to be located in away from a certain distance from LGP, so that whole display
Thickness is greater than the display thickness with side-light type BLU.In traditional side-light type BLU, the light from each LED can be in LGP
Big region on scatter so that closing single led or LED group only can be to dynamic contrast with minimum influence.
The local dimming efficiency of LGP can for example be enhanced by providing one or more micro-structures on the surface LGP.Example
Such as, the plastics LGP with surface micro-structure, such as polymethyl methacrylate (PMMA) or methyl methacrylate can be manufactured
Light from each LED can be limited in narrow band by styrene (MS) LGP, these surface micro-structures.It as a result, can be along
The edge of LGP adjusts the brightness of light source to enhance the dynamic contrast of display.If LED is mounted on two opposite sides of LGP
On, then to generate brightness step along light band, this can be further improved dynamic contrast for adjustable LED pairs of brightness.
The method that micro-structure is provided on plastic material may include, for example, injection molding, extrusion and/or coining.Although these skills
Art can be effective to plastics LGP, but since the glass transition temperature of glass LGP is higher and/or viscosity is higher, these
Technology may not be compatible with glass LGP.However, glass LGP can be provided except various improvement, such as just compared to plastics LGP
For their light decay lowers, thermal expansion coefficient is low and high mechanical strength.Therefore, it can advantageously use glass as building
The alternative materials of LGP are to overcome various defects relevant to plastics.For example, due to their relatively weak mechanical strengths and/or
Lower rigidity, it is thus possible to be difficult to manufacture sufficiently large and thin plastics LGP to meet current consumption demand.Due to plastics
The thermal expansion coefficient of LGP is high, therefore they it may also be desirable to have biggish gap between light source and LGP, this can reduce light
Coupling efficiency and/or require biggish display frame.In addition, compared to glass LGP, plastics LGP absorbs moisture and swollen
Swollen tendency is higher.
Thus, it would be advantageous to provide local dimming efficiency obtains improved glass LGP, such as on its at least one surface
The upper glass LGP with micro-structure.Also it would be advantageous that provide thinness it is similar with side-light type BLU, while local dimming ability and
Backlight type BLU similar backlight.
Summary of the invention
In each embodiment, this disclosure relates to the leaded light component comprising light guide plate, the light guide plate includes: comprising side
The glass baseplate on edge surface and light-emitting area；Polymeric membrane on the light-emitting area of the glass baseplate is set, and it includes multiple
Micro-structure；And at least one light source, it is optical coupled with the edge surface of glass baseplate.There is disclosed herein light guide plate,
Including the glass baseplate comprising edge surface and light-emitting area, and the polymerization being arranged on the light-emitting area of the glass baseplate
Film, the polymeric membrane include multiple micro-structures.For the wavelength within the scope of about 420-750nm, the group light combination of the light guide plate
Attenuation alpha ' 5dB/m can be less than about.In a non-limiting embodiment, the colour cast Δ y of the light guide plate can be less than about
0.015.There is disclosed herein the display device comprising the light guide plate, light emitting device and electronic devices.
According to each embodiment, the glass baseplate may include 50-90 moles of %SiO2, 0-20 moles of %Al2O3、
0-20 moles of %B2O3, 0-25 moles of %RxO, wherein x be 1 or 2 and R be Li, Na, K, Rb, Cs, Zn Mg, Ca, Sr, Ba and
A combination thereof.In other embodiment, the glass baseplate may include Co, Ni and the Cr for being respectively less than about 1ppm.It is described
The thickness of glass baseplate can be in the range of about 0.1mm to about 3mm, and the thickness of the polymeric membrane can be at about 10 μm to about
In the range of 500 μm.
In some embodiments, the polymeric membrane may include UV curable or heat-setting polymer, can incite somebody to action
It is molded on the light-emitting area of glass baseplate.For example, polymeric membrane may include periodically or non-periodically micro structure array, institute
Stating micro structure array includes prism, circularizing prism (rounded prism) or biconvex lens (lenticular lense).Example
Such as, the aspect ratio of micro-structure can be in the range of about 0.1 to about 3.It is opposite with light-emitting area according to non-limiting embodiment
Main surface can be patterned with multiple light extraction features.
Give other feature and advantage of the disclosure in the following detailed description, Partial Feature therein and excellent
Point is readily appreciated that according to being described to those skilled in the art, or by implementing to include embodiment party in detail below
Methods described herein including formula, claims and attached drawing and be realized.
It should be understood that foregoing general description and specific embodiment below all show each embodiment party of the disclosure
Formula, and it is intended to provide the overview or frame of the property and characteristic for understanding claim.Including attached drawing provide pair
The disclosure is further understood from, and attached drawing combines in this manual and constitutes part of specification.Attached drawing instantiates this public affairs
The each embodiment opened, and together with specification it is used to explain the principle and operation of the disclosure.
Detailed description of the invention
When reading in conjunction with the following drawings, it will be further appreciated that following description.
Figure 1A -1D instantiates the exemplary microstructures array according to each embodiment of the disclosure.
Fig. 2 instantiates the leaded light component according to the certain embodiments of the disclosure；
Fig. 3 is constructed using the 1D local dimming of the light guide plate with the microstructured surface comprising lenticular lens array,
Its light limits the diagram changed according to the aspect ratio of micro-structure；
Fig. 4 is the diagram that the colour cast Δ y of light guide plate changes according to the ratio of blue light transmissivity and red transmission rate；And
Fig. 5 is the diagram of the transmission curve of various light guide plates.
Specific embodiment
Disclosed herein is the leaded light component comprising light guide plate, the light guide plate includes: with edge surface and light-emitting area
Glass baseplate, the polymeric membrane comprising multiple micro-structures on the light-emitting area of glass baseplate, and and glass baseplate are set
Optical coupled at least one light source of edge surface.
There is disclosed herein light guide plates comprising: the glass baseplate with edge surface and light-emitting area is arranged in glass
The polymeric membrane comprising multiple micro-structures on the light-emitting area of substrate, and be less than about for the wavelength of about 420-750nm
The combination optical attenuation α ' of 5dB/m.
There is disclosed herein the various devices comprising such light guide, such as display device, light emitting device and electronics dress
It sets, for example, such as television set, computer, phone, tablet computer and other display panels, luminaire, solid-state lighting device, wide
Accuse board and other constracture units.
Each embodiment of the disclosure is discussed referring now to Fig. 1-2, Fig. 1-2 instantiates micro structure array and light guide plate
Illustrative embodiments.Following general description is intended to provide the overview of device claimed, and will refer to non-limit
The embodiment of property description processed more specifically discusses various aspects in entire disclosure, these embodiments are in the disclosure
Context in can be interchangeable with one another.
Figure 1A -1D instantiates each illustrative embodiments of light guide plate (LGP) 100, and the light guide plate 100 includes glass
Substrate 110 and polymeric membrane 120 comprising multiple micro-structures 130.In Figure 1A -1B, micro-structure 130 separately includes 132 He of prism
Circularizing prism 134.As shown in Figure 1 C, micro-structure 130 can also include biconvex lens 136.Certainly, micro-structure shown in is only shown
Example property, and it is not intended to be limited to appended claims.Other microstructure aspects are possible, and they are intended to fall in this public affairs
In the range of opening.Although irregular (or non-week can also be used in addition, Figure 1A -1C instantiates rule (or periodically) array
Phase property) array.For example, Fig. 1 D is the SEM image of the microstructured surface of the aperiodic array comprising prism.
As used herein, term " micro-structure ", " micro-structural " and its version are intended to indicate that polymeric membrane
Surface relief feature, at least one size (such as height, width, length etc.) be less than about 500 μm, for example, less than about 400 μm,
Less than about 300 μm, it is less than about 200 μm, is less than about 100 μm, is less than about 50 μm, or be even less than, for example, about 10 μm to about
500 μm, including therebetween all ranges and subrange.In some embodiments, micro-structure can have rule or irregular
Shape, these shapes can be identical or different in given array.Although Figure 1A -1D is generally instantiated with identical size
With the micro-structure 130 of shape, and the micro-structure 130 is evenly-spaced with substantially the same spacing, however, it is understood that
In given array, and not all micro-structure is required to have identical size and/or shape and/or spacing.It can be used various
The combination of microstructure aspects and/or size, and can by the period or it is acyclic in a manner of arrange this combination.
In addition, the size and/or shape of micro-structure 130 can become according to the required light output and/or optical function of LGP
Change.For example, the available different local dimming efficiency of different microstructure aspects --- it is referred to herein as local dimming
Index (LDI).As non-limiting examples, the available up to about 70% LDI value of the cyclic array of prism microstructure,
And the available up to about 83% LDI value of cyclic array of biconvex lens.Of course, it is possible to change microstructure size and/
Or shape and/or spacing are to obtain different LDI values.Different microstructure aspects can also provide additional optical function.Example
Such as, the prism array that prism angle is 90 ° not only can make local dimming more effective, due also to the circulation of light and redirection, it can
Focusing on light part on the direction perpendicular to apex of prism
With reference to Figure 1A, prism microstructure 132 can have prism angle Θ, in the range of about 60 ° to about 120 °, for example, about
70 ° to about 110 °, about 80 ° to about 100 ° or about 90 °, including therebetween all ranges and subrange.With reference to Fig. 1 C, biconvex lens
Micro-structure 136 can have the cross sectional shape (as illustrated by dotted line) of any agreement, and the cross sectional shape is semicircle, half ellipse
In the range of round, parabola shaped or other similar rounded form.
As shown in Fig. 2, at least one light source 140 can be optical coupled with the edge surface 150 of glass baseplate 110, such as adjoin
Adjacent edge surface 150 positions.As used in this article, term " optical coupled " is intended to indicate that light source is located in the side of LGP
At edge, to inject light into LGP.Light source can be optical coupled with LGP, even if it is not physically contacted with LGP.Other light source
(not illustrating) can also be optical coupled with other edge surfaces of LGP, such as adjoins or opposite edge surface.
The general direction of the light emitted from light source 140 is shown with solid arrow in Fig. 2.Due to total internal reflection (TIR), note
Entering the light into LGP can propagate along the length L of LGP, until it hits interface with the incidence angle for being less than critical angle.It is anti-in complete
Penetrating (TIR) is a kind of phenomenon, because of the phenomenon, is passed in the first material (such as glass, plastics etc.) comprising first refractive index
The light broadcast can all be reflected in the interface with the second material (such as air etc.) comprising the second refractive index, second folding
Rate is penetrated lower than first refractive index.Si Naier (Snell) nomological explanation TIR can be used:
n1sin(θi)=n2sin(θr)
Which depict the refractions of the light of the interface between two kinds of different materials of refractive index.According to Snell's law,
n1It is the refractive index of the first material, n2It is the refractive index of the second material, ΘiIt is normal of the light of interface incidence relative to interface
Angle (incidence angle), and ΘrIt is the refraction angle for reflecting light relative to normal.As refraction angle (Θr) when being 90 °, such as sin
(Θr)=1, Snell's law may be expressed as:
Incidence angle Θ under these conditionsiCritical angle Θ can also be referred to asc.Incidence angle is greater than critical angle (Θi>Θc)
Light will be accordingly totally internally reflected in the first material, and incidence angle be equal to or less than critical angle (Θi≤Θc) light will be by the first material
Material transmission.
In illustrative air (n1=1) with glass (n2=1.5) in the case where the interface between, critical angle (Θc) can count
Calculate is 41 °.Therefore, if the light propagated in glass with greater than 41 ° incidence angle hit air-glass surface, it is all enter
Penetrating light will be reflected with the angle for being equal to incidence angle from interface.If reflected light encounters second contact surface, and the second contact surface includes
Index of refraction relationship identical with the first interface, then it is anti-to be equal to the angle of reflection of incidence angle for again to light incident on second contact surface
It penetrates.
Polymeric membrane 120 can be set in the main surface of glass baseplate 110, such as on light-emitting area 160.Micro-structure 130
Array light (such as towards user) transmission in a forward direction can be guided together with other optional features of LGP, it is such as empty
The direction of line arrow instruction.In some embodiments, light source 140 can be Lambertian source, such as light emitting diode (LED).
Light from LED can scatter rapidly in LGP, this can cause to be difficult to carry out effective local dimming (such as by closing one
A or multiple LED).However, by being provided on optical propagation direction (such as shown in the solid arrow in Fig. 2 on the surface LGP
Direction) elongation one or more micro-structures, scattering for light can be limited, so that each LED light source effectively only irradiates LGP
One narrowband.For example, illuminated band can extend to the similar endpoint in opposite edges from the origin where LED.Therefore, make
With various micro-structured configurations, at least part of 1D local dimming of LGP can be realized in relatively effective manner.
In some embodiments, leaded light component can be constructed so that it can realize 2D local dimming.For example, one
A or multiple other light sources can be optical coupled with adjacent (such as orthogonal) edge surface.It can be by the first polymeric membrane cloth
It sets on light-emitting area, which has the micro-structure extended in the propagation direction, and can be by the second polymeric membrane
On an opposing major surface, which has the micro-structure upwardly extended in the side orthogonal with the direction of propagation to arrangement.Therefore, the part 2D
Light modulation can be realized by selectively closing off one or more along the light source of each edge surface.
According to each embodiment, it is special that the second main surface 170 of glass baseplate 110 can be patterned with multiple light extractions
Sign.As used herein, term " patterning " is intended to indicate that on substrate surface or there are any given patterns in surface
Or multiple light extraction features of design, for example, they can be random or arrangement, repetition or non-repetitive, uniform or uneven
Even.In other embodiments, light extraction features can be located in the matrix of the glass baseplate adjacent with surface, for example,
Lower face.For example, light extraction features can be distributed on the surface, such as special as coarse or convex surfaces texture is constituted
Sign, or can be distributed in substrate or part thereof or be distributed throughout entire substrate or part thereof, such as laser damage
Feature.Suitable method for establishing this light extraction features may include that printing is (such as ink jet printing, silk-screen printing, miniature
Printing etc.)；Veining；It is mechanically roughened；Etching；Injection molding；Coating；Laser damage or any combination thereof.The non-limit of the method
Property example processed includes, for example, carrying out acid etching to surface, using TiO2Coating surface, and by focusing on the surface laser
Or come to carry out laser damage to substrate in substrate matrix.
In each embodiment, the light extraction features optionally on the first or second surface of LGP may include light
Scatter site.According to each embodiment, can suitable density light extraction features are patterned, in glass baseplate
Substantially homogeneous light output intensity is generated on light-emitting area.In some embodiments, light extraction features near light source
Density can be lower than the density of the light extraction features at point farther from light source, or vice versa, such as pass through
Gradient, suitably to establish required light output distribution on LGP.
LGP can be handled according to any method known in the art to form light extraction features, for example, by
No. PCT/US2013/063622 and No. PCT/US2014/070771 co-pending and jointly owned international patent application
Disclosed in method, every document is incorporated herein by reference in their entirety.For example, the surface of LGP can be ground and/or be thrown
Light is to obtain required thickness and/or surface quality.Optionally, surface can then be carried out cleaning and/or can made
The surface experience of pending etching removes the process of pollutant, such as exposes the surface in ozone.As non-limiting implementation
Surface to be etched can be exposed in acid bath by mode, such as glacial acetic acid (GAA) and ammonium fluoride are with for example, about 1:1 to about 9:1
Ratio mixture.For example, etching period can be about 30 seconds to about 15 minutes, and etching can be at ambient temperature or elevated temperature
Occur.Technological parameter, such as size, the shape of extraction feature that acid concentration/ratio, temperature and/or time can influence
And distribution.Those skilled in the art has the ability to change these parameters to obtain required surface extraction feature.
Glass baseplate 110 can have any desired size and/or shape of the light distribution needed for being suitable for generating.Glass
Substrate 110 may include second main surface 170 opposite with light-emitting area 160.In some embodiments, main surface can be
Plane or substantially plane, such as substantially flat and/or level.In each embodiment, the first and second main tables
Face can be parallel or substantially parallel.Glass baseplate 110 may include four edges as illustrated in Figure 2, Huo Zheke
To comprise more than four edges, such as the polygon of multiple sides.In other embodiments, glass baseplate 110 may include
Less than four edges, such as triangle.As non-limiting examples, light guide may include having there are four the rectangle at edge, just
Rectangular or rhomboid piece, but other shapes and construction are intended to fall in the scope of the present disclosure, including are had one or more bent
Those of line part or edge.
In some embodiments, the thickness d of glass baseplate 1101It can be less than or equal to about 3mm, for example, about 0.1mm
To about 2.5mm, about 0.3mm to about 2mm, about 0.5mm to about 1.5mm or about 0.7mm to about 1mm, including all ranges therebetween
And subrange.Glass baseplate 110 may include any material known in the art for display device.For example, glass baseplate
It may include sillico aluminate glass, alkali metal aluminosilicate glass, borosilicate glass, alkali-metal borosilicates glass, aluminium boron
Silicate glass, composite alkali aluminum borosilicate glass, soda-lime glass or other suitable glass.It is suitable as glass light guide
The non-limiting example of commercially available glass includes, for example, the EAGLE of Corning Inc (Corning Incorporated)LotusTM、IrisTMWithGlass.
Some non-limiting glass compositions may include: about 50 moles of % to about 90 moles of %SiO2, 0 mole of % to about 20
Mole %Al2O3, 0 mole of % to about 20 moles of %B2O3And 0 mole of % to about 25 moles of %RxO, wherein R Li, Na, K,
Any one or more and x in Rb, Cs are that 2 or R is Zn, Mg, Ca, Sr or Ba and x is 1.In some embodiments,
RxO–Al2O3>0；0<RxO–Al2O3<15；X=2 and R2O–Al2O3<15；R2O–Al2O3<2；X=2 and R2O–Al2O3–MgO>-15；
0<(RxO–Al2O3)<25,-11<(R2O–Al2O3) < 11, and -15 < (R2O–Al2O3–MgO)<11；And/or -1 < (R2O–Al2O3)<
2 and -6 < (R2O–Al2O3–MgO)<1.In some embodiments, glass includes Co, Ni and the Cr for being respectively less than 1ppm.One
In a little embodiments, the concentration of Fe is < about 50ppm, < about 20ppm or < about 10ppm.In other embodiments, Fe+30Cr+
35Ni < about 60ppm, Fe+30Cr+35Ni < about 40ppm, Fe+30Cr+35Ni < about 20ppm or Fe+30Cr+35Ni < about
10ppm.In other embodiments, the glass includes: about 60 moles of % to about 80 moles of %SiO2, about 0.1 mole of % extremely
About 15 moles of %Al2O3, 0 mole of % to about 12 moles of %B2O3About 0.1 mole of % to about 15 moles of %R2O and about 0.1 rubs
Your % to about 15 moles of %RO, wherein R be any one or more and x in Li, Na, K, Rb, Cs be 2 or R be Zn, Mg,
Ca, Sr or Ba and x are 1.
In other embodiments, the glass composition may include: about 65.79 moles of % to about 78.17 moles of %
SiO2, about 2.94 moles of % to about 12.12 moles of %Al2O3, about 0 mole of % to about 11.16 moles of %B2O3, about 0 mole of % extremely
About 2.06 moles of %Li2O, about 3.52 moles of % to about 13.25 moles of %Na2O, about 0 mole of % to about 4.83 moles of %K2O, about
0 mole of % to about 3.01 moles of %ZnO, about 0 mole of % to about 8.72 moles of %MgO, about 0 mole of % to about 4.24 moles of %
CaO, about 0 mole of % to about 6.17 moles of %SrO, about 0 mole % to about 4.3 moles %BaO and about 0.07 mole of % are to about
0.11 mole of %SnO2。
In other embodiment, glass baseplate 110 may include the R between 0.95 to 3.23xO/Al2O3Ratio,
Middle R is any one or more of Li, Na, K, Rb, Cs and x is 2.In other embodiment, glass baseplate may include
R between 1.18 to 5.68xO/Al2O3Ratio, wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2,
Or R is Zn, Mg, Ca, Sr or Ba and x is 1.In other embodiment, glass baseplate may include -4.25 to 4.0 it
Between RxO–Al2O3- MgO, wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2.In other embodiment party
In formula, glass baseplate be may include: about 66 moles of % to about 78 moles of %SiO2, about 4 moles of % to about 11 moles of %Al2O3, about
4 moles of % to about 11 moles of %B2O3, about 0 mole of % to about 2 moles of %Li2O, about 4 moles of % to about 12 moles of %Na2O, about 0
Mole % to about 2 moles of %K2O, about 0 mole of % to about 2 moles of %ZnO, about 0 mole of % to about 5 moles of %MgO, about 0 are rubbed
% to about 2 moles of %CaO of that, about 0 mole of % to about 5 moles of %SrO, about 0 mole of % to about 2 moles of %BaO and about 0 rub
You are % to about 2 moles of %SnO2。
In other embodiment, glass baseplate 110 may include: about 72 moles of % to about 80 moles of %SiO2, about 3 rub
You are % to about 7 moles of %Al2O3, about 0 mole of % to about 2 moles of %B2O3, about 0 mole of % to about 2 moles of %Li2O, it about 6 rubs
You are % to about 15 moles of %Na2O, about 0 mole of % to about 2 moles of %K2O, about 0 mole of % to about 2 moles of %ZnO, about 2 moles of %
To about 10 moles of %MgO, about 0 mole of % to about 2 moles of %CaO, about 0 mole of % to about 2 moles of %SrO, about 0 mole of % to about
2 moles %BaO and about 0 mole % to about 2 moles of %SnO2.In some embodiments, glass baseplate may include: about 60 rub
You are % to about 80 moles of %SiO2, about 0 mole of % to about 15 moles of %Al2O3, about 0 mole of % to about 15 moles of %B2O3About 2
Mole % to about 50 moles of %RxO, wherein R be any one or more of Li, Na, K, Rb, Cs and x be 2 or R be Zn,
Mg, Ca, Sr or Ba and x are 1, and wherein Fe+30Cr+35Ni < about 60ppm.
In some embodiments, glass baseplate 110 may include colour cast Δ y, less than 0.015, such as about 0.005 to
In the range of about 0.015 (for example, about 0.005,0.006,0.007,0.008,0.009,0.010,0.011,0.012,0.013,
0.014 or 0.015).In other embodiments, glass baseplate may include the colour cast less than 0.008.According to certain embodiment party
Formula, glass baseplate can have optical attenuation α1(such as due to caused by absorption and/or scattering loss), for about 420-750nm range
Interior wavelength, be less than about 4dB/m, for example, less than about 3dB/m, be less than about 2dB/m, be less than about 1dB/m, be less than about 0.5dB/m,
Less than about 0.2dB/m, or it is even less than, such as in the range of about 0.2dB/m to about 4dB/m.
In some embodiments, glass baseplate 110 can be chemical strengthening, such as be strengthened by ion exchange.?
It, can be with bigger metal ion (example at or approximately at the ion in the sheet glass of glass sheet surface during ion-exchange process
Such as from the metal ion of salt bath) it swaps.Bigger ions binding enters can be by generating in glass in near-surface region
Compression stress carrys out strengthened glass piece.Corresponding tensile stress can be generated, in sheet glass central area to balance the compression stress.
Ion exchange can be carried out for example by the way that glass is immersed in molten salt bath the scheduled time.Illustrative salt
Bath includes but is not limited to KNO3、LiNO3、NaNO3、RbNO3And combinations thereof.The temperature of molten salt bath and processing time can change.
Those skilled in the art can determine time and temperature according to required application.As non-limiting examples, the temperature of molten salt bath
Degree can be in the range of about 400 DEG C to about 800 DEG C, and for example, about 400 DEG C to about 500 DEG C, and the scheduled time can be about 4
Hour in the range of about 24 hours, for example, about 4 hours to about 10 hours, it is contemplated that the combinations of other temperature and times.
As non-limiting examples, glass can be immersed in KNO at for example, about 450 DEG C3Surface pressure is assigned to obtain within about 6 hours in bath
The rich potassium layer of stress under compression.
Polymeric membrane 120 may include can UV solidify or any polymeric material of heat cure.It is as follows more specifically to discuss, gather
Condensation material is also selected from the composition with low colour cast and/or low blue light wavelength (such as~450-500nm) absorption.At certain
In a little embodiments, polymeric membrane 120 can be thinly deposited on the light-emitting area of glass baseplate.120 company of can be of polymeric membrane
It is continuous or discrete.
With reference to Figure 1A -1C, polymeric membrane 120 can have overall thickness d2" ground " thickness t.In some embodiments,
Micro-structure 130 may include peak p and paddy v, and overall thickness can correspond to the height of peak p, and ground face thickness can correspond to
The height of paddy v.According to each embodiment, it can be advantageous to deposition polymerization film 120, so that ground face thickness t is zero or as far as possible
Close to zero.When t is zero, polymeric membrane 120 can be discrete.For example, ground face thickness t can be in 0 to about 250 μm of range
It is interior, for example, about 10 μm to about 200 μm, about 20 μm to about 150 μm or about 50 μm to about 100 μm, including therebetween all ranges and
Subrange.In other embodiment, overall thickness d2Can be in the range of about 10 μm to about 500 μm, for example, about 20 μm are extremely
About 400 μm, about 30 μm to about 300 μm, about 40 μm to about 200 μm or about 50 μm to about 100 μm, including all ranges therebetween
And subrange.
A-1C is continued to refer to figure 1, micro-structure 130 there can also be width w, needed for can according to need variation to obtain
Light output.For example, Fig. 3 instantiates aspect ratio (w/ [d2- t]) influence that the light constructed limits is dimmed to 1D.Draw normalization
Power is to indicate the ability being effectively limited in light in given width area.For construction (the LGP thickness=2.5mm of illustration；It is micro-
Structure=ellipse biconvex lens), the aspect ratio (circular data point) of the maximum dimmer validity corresponding to 200mm width area is about
2.5.Similarly, the aspect ratio (square data points) for obtaining maximum dimmer in 100mm width area is about 2.3.
Therefore, in some embodiments, thus it is possible to vary width w and/or overall thickness d is to obtain required aspect ratio.Ground
The variation of face thickness t can also be used for changing light output.In a non-limiting embodiment, the aspect ratio of micro-structure 130 can be
About 0.1 to about 3, for example, about 0.5 to about 2.5, about 1 to about 2.2 or about 1.5 to about 2, including therebetween all ranges and sub- model
It encloses.According to some embodiments, aspect ratio can in the range of about 2 to about 3, for example, about 2,2.1,2.2,2.3,2.4,2.5,
2.6,2.7,2.8,2.9 or 3, including therebetween all ranges and subrange.The width w of micro-structure can also be for example at about 1 μm
To in the range of about 250 μm, for example, about 10 μm to about 200 μm, about 20 μm to about 150 μm or about 50 μm to about 100 μm, including
All ranges and subrange therebetween.It shall yet further be noted that micro-structure 130 can have on optical propagation direction (solid line arrow referring to fig. 2
Head) the length (not shown) that extends, it can according to need variation, such as according to the length L of glass baseplate variation.
In some embodiments, polymeric membrane 120 may include the material for not showing significant colour cast.Because of blue wavelength
The light absorption of (such as~450-500nm), a variety of plastics and resin can have the trend for showing yellow hue with the time.It is this
Discoloration at high temperature may be more serious, such as in normal BLU operation temperature.In addition, the BLU comprising LED light source can be because aobvious
It lands and emits blue wavelength and aggravate colour cast.Particularly, LED can be by being converted into red and green wavelength with by some blue lights
Color-converting material (such as phosphor etc.) coating blue light-emitting LED transmit white light, to obtain the feeling for being generally white light.
However, LED emission spectrum still can have strong emission peak in blue region although having the conversion of this color.Such as
Fruit polymeric membrane absorbs blue light, then it can be converted into heat, thus as the time further speeds up polymer degradation and further increases
Add blue light absorption.
Although polymeric membrane, which absorbs blue light, to be ignored when light is propagated perpendicular to film, when light is passed along the length of film
Sowing time (such as in the situation of side-light type LGP), since spread length is longer, polymeric membrane, which absorbs blue light, may become more significant.Edge
The blue light absorption of LGP length can lead to the significant loss of blue light strength, and therefore significantly change color (example along the direction of propagation
As yellow is inclined).Therefore, human eye can be perceived from an edge of display to the colour cast at another edge.Therefore, selection for
It may be to have that the different wave length of (such as~420-750nm), which has the polymeric film material of comparable absorption value, in visible-range
Benefit.For example, the absorption under blue wavelength may be substantially similar to the absorption under red wavelength, it is such.
Fig. 4 illustrates influence of the blue/red transmittance to the colour cast of LGP.As shown, as blue light (450nm) is saturating
It penetrates rate to reduce relative to feux rouges (630nm) transmissivity, colour cast Δ y increases to approach linear mode.When blue light transmissivity reaches
When being similar to the value of red transmission rate (such as when ratio is close to 1), colour cast Δ y approximation is close to 0.Fig. 5 is instantiated for generating
The transmitted spectrum of correlation shown in Fig. 4.Lower Table I provides the correlative detail of transmittance graph A-J.
Table I: transmittance graph
| It absorbs peak shift (Δ A) | Colour cast (Δ y) | |
| A | 0.5 | 0.0111 |
| B | 0.4 | 0.0098 |
| C | 0.3 | 0.0084 |
| D | 0.2 | 0.0071 |
| E | 0.1 | 0.0057 |
| F | 0.0 | 0.0044 |
| G | -0.1 | 0.003 |
| H | -0.2 | 0.0017 |
| I | -0.3 | 0.0003 |
| J | -0.4 | -0.001 |
Due to polymeric membrane can the only overall thickness comprising LGP sub-fraction, blue light/red transmission rate ratio can be with
Slightly below shown in Fig. 4 (due to the relative thinness of film) without significantly affecting the colour cast performance of total LGP.But reduce blue light absorption
And/or the absorption distribution provided on visible wavelength spectrum more evenly still can be advantageous.For example, can to polymeric membrane into
Row selection is to avoid in the chromophore of > 450nm absorbing at wavelengths.In some embodiments, polymeric membrane can be selected,
So that the concentration for absorbing the chromophore of blue light is less than about 5ppm, for example, less than about 1ppm, less than about 0.5ppm or it is less than about
0.1ppm, including therebetween all ranges and subrange.Or, thus it is possible to vary polymeric membrane is to compensate blue light absorption, for example, passing through
Comprising one or more dyestuffs, pigment and/or fluorescent whitening agent, absorbed at yellow wavelengths (such as~570-590nm) with
Neutralize any potential colour cast.However, design polymeric material can reduce the total of film to absorb under blue and yellow wavelengths
Penetrating property, and therefore reduce the total transmission of LGP.Therefore, in some embodiments, it can be beneficial that be changed to selection and/or
Change polymeric material to reduce blue light absorption, thus increases the total transmission of film.
According to each embodiment, polymeric membrane 120 can also be selected with dispersion of refractive index, the refractive index color
The interface Fresnel reflection in balance blue spectrum region and red spectral area is dissipated, to make minimum along the colour cast of the length of LGP
Change.It, can be with the difference of 45 ° of Fresnel reflection in substrate-polymeric membrane interface for example, for the wavelength of about 450-630nm
Be, for example, less than 0.005% less than 0.015%, or less than 0.001%, including therebetween all ranges and subrange.Other are related
Dispersion characteristics be described in entitled " the Glass Articles Comprising Light submitted on June 10th, 2016
The U.S. of No. 62/348465 co-pending of Extraction Features " [" glassware comprising light extraction features "]
In provisional application, entire contents are totally incorporated herein by reference.
Referring again to FIGS. 2, polymeric membrane 120 can be molded into the luminous table of glass baseplate 110 in each embodiment
Face 160.For example, can be stamped or be pressed with required picture on surface during and/or after with polymeric material coating glass substrate
Print polymeric material.The process is properly termed as " microreplicated ", wherein mold is made in required pattern first, is then pressed onto polymeric material
In with obtain mold shape former replicate pattern.Polymeric material can carry out UV solidification or thermosetting during or after stamp
Change, this may be respectively referred to as " UV coining " and " hot padding ".Alternatively, hot press printing technology, which can be used, applies polymeric membrane, wherein first
Polymeric material is first heated to above to the temperature of its glass transition point, then coining and cooling.Other methods may include by
Polymeric material layer printing (such as silk-screen printing, ink jet printing, miniature printing etc.) is expressed on glass baseplate, then by the layer
Forming (such as molding, coining, stamp etc.) is at required shape.
According to each embodiment, glass baseplate be may include with the first glass transition temperature Tg1Composition, institute
State the first glass transition temperature Tg1Greater than the second glass transition temperature T of polymeric membraneg2.For example, glass transition temperature
Difference (Tg1-Tg2) can be at least about 100 DEG C, for example, about 100 DEG C to about 800 DEG C, about 200 DEG C to about 700 DEG C, about 300 DEG C to about
600 DEG C or about 400 DEG C to about 500 DEG C, including therebetween all ranges and subrange.The temperature difference, which can permit, will polymerize material
Material is molded into glass baseplate and non-fusible glass baseplate or otherwise negatively affects glass baseplate during molding process.
In other embodiments, glass baseplate can have the first fusion temperature Tm1, it is greater than the second fusion temperature of polymeric membrane
Tm2, and/or there is the first viscosity v under given processing temperature1, it is greater than the second viscosity v of polymeric membrane2。
In some embodiments, glass baseplate, polymeric membrane and/or LGP can be transparent or substantial transparent.Such as
Used in herein, term " transparent " is intended to indicate that the optical transmittance of substrate, film or LGP in the visual field of spectrum
(~420-750nm) it is greater than about 80%.For example, illustrative transmissivity of the transparent material in visible-range can be greater than about
85%, be greater than about 90%, greater than about 95% or greater than about 99% transmissivity, including therebetween all ranges and son
Range.In some embodiments, illustrative transparent material in the ultraviolet area (UV) (~100-400nm) optical transmittance
It can be greater than about 50%, about 55% is greater than, is greater than about 60%, is greater than about 65%, is greater than about 70%, is greater than about 75%, is big
In about 80%, greater than about 85%, greater than about 90%, greater than about 95% or greater than about 99% transmissivity, including owning therebetween
Range and subrange.
In some embodiments, illustrative transparent glass or polymeric material may include Co, the Ni for being respectively less than 1ppm
And Cr.In some embodiments, the concentration of Fe is < about 50ppm, < about 20ppm or < about 10ppm.In other embodiments,
Fe+30Cr+35Ni < about 60ppm, Fe+30Cr+35Ni < about 40ppm, Fe+30Cr+35Ni < about 20ppm or Fe+30Cr+
35Ni < about 10ppm.According to other embodiment, illustrative transparent glass or polymeric material may include < 0.015 colour cast,
Or in some embodiments, comprising < 0.008 colour cast.
Colour cast can use 1931 standard of CIE for color measuring, by measuring x and y chromaticity coordinate along length L
Variation characterize.For glass light guide plate, colour cast Δ y can be expressed as Δ y=y (L2)-y(L1), wherein L2And L1It is along remote
The Z location of panel or base material direction from light source transmitting, and wherein L2-L1=0.5 meter.Illustrative light guide plate have Δ y <
0.01, Δ y < 0.005, Δ y < 0.003 or Δ y < 0.001.
The light scattering characteristic of LGP can also be influenced by the refractive index of glass and polymeric material.According to each embodiment, glass
The refractive index of glass can be in the range of about 1.3 to about 1.8, and for example, about 1.35 to about 1.7, about 1.4 to about 1.65, about 1.45 to about
1.6 or about 1.5 to about 1.55, including therebetween all ranges and subrange.In some embodiments, the folding of polymeric material
The rate of penetrating may be substantially similar to the refractive index of glass baseplate.As used herein, term " substantially similar " is intended to table
Show that two values are approximately equal, such as differed within about 10% each other, is such as differed within about 5% each other, or in some cases,
It is differed within about 2% each other.For example, refractive index be 1.5 situation in, essentially similar refractive index can about 1.35 to
In the range of about 1.65.
According to each non-limiting embodiment, it is horizontal that LGP (glass+polymer) can have relatively low optical attenuation
(such as due to caused by absorbing and/or scatter).For example, the combination decaying of LGP can be expressed as α '=(d1/D)*α1+(d2/D)*
α2, wherein d1Indicate the overall thickness of transparent substrate, d2Indicate the overall thickness of polymeric membrane, D indicates the overall thickness (D=d of LGP1+d2),
α1Indicate the pad value of transparent substrate, and α2Indicate the pad value of polymeric membrane.In some embodiments, in about 420-
Wavelength within the scope of 750nm, α ' can be less than about 5dB/m.For example, α ' can be less than about 4dB/m, less than about 3dB/m, be less than about
2dB/m, it is less than about 1dB/m, is less than about 0.5dB/m, being less than about 0.2dB/m, or even less than, including all model therebetween
It encloses and subrange, for example, about 0.2dB/m to about 5dB/m.The combination decaying of LGP can for example according to the thickness of polymeric membrane and/or
The overall thickness of polymeric membrane and the ratio (d of LGP overall thickness2/ D) and change.Therefore, thus it is possible to vary the thickness and/or glass of polymeric membrane
The thickness of glass substrate is to obtain required pad value.For example, (d2/ D) can in the range of about 1/2 to about 1/50, for example, about 1/3
To about 1/40, about 1/5 to about 1/30 or about 1/10 to about 1/20, including therebetween all ranges and subrange.
LGP disclosed herein can be used for various display devices, including but not limited to LCD.According to each side of the disclosure
Face, display device may include the LGP at least one disclosure connecting at least one light source, and the light source can emit indigo plant
Light, UV light or nearly UV light (for example, about 100-500nm).In some embodiments, light source can be light emitting diode (LED).
The optical component of illustrative LCD can also include, for example, reflector, diffusing globe, one or more prism films, one or more
A linear or reflective polarizer, thin film transistor (TFT) (TFT) array, liquid crystal layer and one or more colour filters.It is disclosed herein
LGP can also be used in various lighting devices, such as luminaire or solid-state lighting application.
It should be understood that each disclosed embodiment can be related to the special characteristic being described together with particular implementation, member
Element or step.Although it should also be understood that being described in the form of being related to a particular implementation, special characteristic, element
Or the replaceability embodiment in the combination that each can not illustrate of step or arrangement mode is exchanged or combination.
It will also be appreciated that terms used herein "the", "one" or "an" indicate " at least one (one kind) ", without
It should be limited as " only one (one kind) ", unless there are clearly opposite explanation.Thus, for example, " light source " mentioned includes tool
There are two or more this light source example, unless the context clearly indicates otherwise.Similarly, " multiple (a variety of) " or
" array " is intended to indicate that " more than one (one kind) ".Therefore, " multiple luminescence features " includes two or more this features, example
Such as three or more this features, and " micro structure array " includes two or more this micro-structures, such as three
Or more this micro-structure etc..
Herein, range can be expressed as since " about " occurrence and/or terminate to " about " another occurrence.
When stating this range, example includes stopping from a certain occurrence beginning and/or to another occurrence.Similarly, when using leading
When word " about " indicates that numerical value is approximation, it should be appreciated that specific value constitutes on the other hand.It will also be appreciated that each model
The endpoint value enclosed is all meaningful in and independently of another endpoint value in the case where related to another endpoint value.
The term as used herein " basic ", " substantially " and its version are intended to indicate that the feature is equal or approximate to
Equal to a numerical value or description.For example, " substantially planar " surface is intended to indicate that plane or general plane surface.In addition,
As hereinbefore defined, " essentially similar " is intended to indicate that two values are equal or approximately equal.In some embodiments, " basic
It is upper similar " it can indicate to differ the value within about 10% each other, such as differed within about 5% each other, or differ each other
Value within about 2%.
Unless otherwise stated, it is otherwise all not intended to and is interpreted as any means as described herein to need to make its step with specific
Sequence carries out.Therefore, it is set fourth as its step and follows certain sequence or its not having if claim to a method is practically without
It specifically indicates that step is limited to specific sequence in claims or specification with any other modes, is then all not intended to imply that
Any specific sequence.
Although each feature, element or the step of particular implementation can be disclosed using interlanguage "comprising", answer
Understand, which imply include can be used interlanguage " by ... constitute " or " substantially by ... constitute " describe including replace
For property embodiment.Thus, for example, the implicit alternative embodiment of the device comprising A+B+C is including wherein device by A+B
The embodiment of+C composition and the embodiment that wherein device is substantially made of A+B+C.
It will be apparent to those skilled in the art the disclosure can be carry out various modifications and change and
Without departing from the scope of the present disclosure and spirit.Because those skilled in the art is contemplated that the spirit and essence for having merged the disclosure
Disclosed embodiment it is various it is improved combination, subitem combination and variation, therefore, it is considered that the disclosure includes appended power
Full content and its equivalent within the scope of sharp claim.
Claims (28)
1. a kind of leaded light component, it includes:
(a) light guide plate, it includes:
(i) with the glass baseplate of edge surface and light-emitting area；With
(ii) polymeric membrane comprising multiple micro-structures on the light-emitting area of glass baseplate is set；And
(b) at least one optical coupled light source of the edge surface of glass baseplate.
2. component as described in claim 1, wherein the light guide plate includes combination optical attenuation α ', in about 420-750nm
Wavelength in range, the combination optical attenuation α ' are less than about 5dB/m.
3. component as described in claim 1, wherein the light guide plate includes the colour cast Δ y less than about 0.015.
4. component as described in claim 1, wherein glass baseplate has the first glass transition temperature Tg1, it is greater than polymerization
Second glass transition temperature T of filmg2。
5. component as described in claim 1, wherein based on mole % of oxide, the glass baseplate includes:
50-90 moles of %SiO2、
0-20 moles of %Al2O3、
0-20 moles of %B2O3And
0-25 moles of %RxO,
Wherein x is that 2 and R is selected from Li, Na, K, Rb, Cs and combinations thereof, or wherein x be 1 and R be selected from Zn, Mg, Ca, Sr, Ba and
A combination thereof.
6. component as described in claim 1, wherein glass baseplate includes Co, Ni and the Cr for being respectively less than about 1ppm.
7. component as described in claim 1, wherein the thickness d of glass baseplate1In the range of about 0.1mm to about 3mm.
8. component as described in claim 1, wherein the thickness d of polymeric membrane2In the range of about 10 μm to about 500 μm.
9. component as described in claim 1, wherein polymeric membrane includes UV curable or heat-setting polymer.
10. component as described in claim 1, wherein polymeric membrane is molded on the light-emitting area of glass baseplate.
11. component as described in claim 1, wherein the multiple micro-structure includes prism, circularizing prism or biconvex lens
Periodically or non-periodically array.
12. component as described in claim 1, wherein at least one micro-structure in the multiple micro-structure includes about 0.1
To about 3 aspect ratio.
13. component as described in claim 1, wherein the glass baseplate is also included in main surface relative to the light-emitting area
Upper patterned multiple light extraction features.
14. component as described in claim 1 also includes at least one coupled with the second edge surface optical of glass baseplate
A second light source, and optionally, second comprising multiple micro-structures being arranged in main surface relative to the light-emitting area is poly-
Close film.
15. a kind of display, luminous or electronic device, it includes components as described in claim 1.
16. a kind of light guide plate, it includes:
(a) comprising the glass baseplate of edge surface and light-emitting area；
(b) polymeric membrane comprising multiple micro-structures on the light-emitting area of glass baseplate is set；And
(c) the combination optical attenuation α ' for the wavelength within the scope of about 420-750nm, less than about 5dB/m.
17. light guide plate as claimed in claim 16, it includes the colour cast Δ y for being less than about 0.015.
18. light guide plate as claimed in claim 16, wherein glass baseplate has the first glass transition temperature Tg1, it is greater than
Second glass transition temperature T of polymeric membraneg2。
19. light guide plate as claimed in claim 16, wherein based on mole % of oxide, the glass baseplate includes:
50-90 moles of %SiO2、
0-20 moles of %Al2O3、
0-20 moles of %B2O3And
0-25 moles of %RxO、
Wherein x is that 2 and R is selected from Li, Na, K, Rb, Cs and combinations thereof, or wherein x be 1 and R be selected from Zn, Mg, Ca, Sr, Ba and
A combination thereof.
20. light guide plate as claimed in claim 16, wherein glass baseplate includes Co, Ni and the Cr for being respectively less than about 1ppm.
21. light guide plate as claimed in claim 16, wherein d1In the range of about 0.1mm to about 3mm, and d2At about 10 μm
To in the range of about 500 μm.
22. light guide plate as claimed in claim 16, wherein polymeric membrane includes UV curable or heat-setting polymer.
23. light guide plate as claimed in claim 16, wherein polymeric membrane is molded into the light-emitting area of glass baseplate.
24. light guide plate as claimed in claim 16, wherein the multiple micro-structure includes prism, circularizing prism or lenticular
The periodically or non-periodically array of mirror.
25. light guide plate as claimed in claim 16, wherein at least one micro-structure in the multiple micro-structure includes about
The aspect ratio of 0.1 to about 3.
26. light guide plate as claimed in claim 16, wherein the glass baseplate is also included in main table relative to the light-emitting area
Patterned multiple light extraction features on face.
27. a kind of leaded light component, it includes the light guide plates as claimed in claim 16 coupled at least one light source optical.
28. a kind of display, luminous or electronic device, it includes light guide plate as claimed in claim 16 or such as claim 27 institute
The leaded light component stated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662348395P | 2016-06-10 | 2016-06-10 | |
| US62/348,395 | 2016-06-10 | ||
| PCT/US2017/036705 WO2017214482A1 (en) | 2016-06-10 | 2017-06-09 | Microstructured light guide plates and devices comprising the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109312909A true CN109312909A (en) | 2019-02-05 |
Family
ID=60578279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780035979.8A Withdrawn CN109312909A (en) | 2016-06-10 | 2017-06-09 | Micro-structural light guide plate and the device comprising the light guide plate |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2019523970A (en) |
| KR (1) | KR20190008419A (en) |
| CN (1) | CN109312909A (en) |
| TW (1) | TW201802549A (en) |
| WO (1) | WO2017214482A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649909A (en) * | 2020-12-22 | 2021-04-13 | 凯鑫森(上海)功能性薄膜产业有限公司 | Prism lens and application thereof |
| US11092733B2 (en) | 2016-11-18 | 2021-08-17 | Corning Incorporated | Microstructured light guide plates and devices comprising the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI755486B (en) | 2017-02-16 | 2022-02-21 | 美商康寧公司 | Backlight unit with one dimensional dimming |
| TWI749174B (en) * | 2018-02-12 | 2021-12-11 | 美商康寧公司 | Glass articles with elongate microstructures and light extraction features |
| TW202331302A (en) * | 2018-02-19 | 2023-08-01 | 美商康寧公司 | Lcd backlight unit comprising a solvent free micro-replication resin |
| TW202001310A (en) * | 2018-06-08 | 2020-01-01 | 美商康寧公司 | Glass articles including elongate polymeric microstructures |
| WO2020004131A1 (en) * | 2018-06-27 | 2020-01-02 | 日本電気硝子株式会社 | Method for producing glass substrate laminate, glass substrate, glass substrate laminate and head-mounted display |
| CN108995197A (en) * | 2018-07-06 | 2018-12-14 | 新谱（广州）电子有限公司 | A kind of light guide plate manufacture craft for effectively improving backlight luminance and improving hot spot |
| CN108732676A (en) * | 2018-07-25 | 2018-11-02 | 东莞市银泰丰光学科技有限公司 | A kind of processing method of glass light guide plate surface lenti micro-structures |
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- 2017-06-09 JP JP2018563663A patent/JP2019523970A/en active Pending
- 2017-06-09 CN CN201780035979.8A patent/CN109312909A/en not_active Withdrawn
- 2017-06-09 KR KR1020197000787A patent/KR20190008419A/en unknown
- 2017-06-09 WO PCT/US2017/036705 patent/WO2017214482A1/en active Application Filing
- 2017-06-09 TW TW106119198A patent/TW201802549A/en unknown
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| US20080232135A1 (en) * | 2006-05-31 | 2008-09-25 | 3M Innovative Properties Company | Light guide |
| CN102955193A (en) * | 2011-08-17 | 2013-03-06 | 锦明实业股份有限公司 | Composite light guide plate, manufacturing method thereof and backlight module with composite light guide plate |
| US20150368146A1 (en) * | 2014-06-19 | 2015-12-24 | Corning Incorporated | Aluminosilicate glasses |
| CN107340554A (en) * | 2016-05-03 | 2017-11-10 | 刘晋佑 | Has the luminescent film of energy-saving effect |
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| US11092733B2 (en) | 2016-11-18 | 2021-08-17 | Corning Incorporated | Microstructured light guide plates and devices comprising the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017214482A1 (en) | 2017-12-14 |
| TW201802549A (en) | 2018-01-16 |
| KR20190008419A (en) | 2019-01-23 |
| JP2019523970A (en) | 2019-08-29 |
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Application publication date: 20190205 |