CN107635935A - Glassware and its manufacture method with laser cut edges - Google Patents
Glassware and its manufacture method with laser cut edges Download PDFInfo
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- CN107635935A CN107635935A CN201680028144.5A CN201680028144A CN107635935A CN 107635935 A CN107635935 A CN 107635935A CN 201680028144 A CN201680028144 A CN 201680028144A CN 107635935 A CN107635935 A CN 107635935A
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- glassware
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 45
- 239000011521 glass Substances 0.000 claims description 126
- 230000007547 defect Effects 0.000 claims description 42
- 238000000608 laser ablation Methods 0.000 claims description 21
- 230000035882 stress Effects 0.000 claims description 11
- 238000003698 laser cutting Methods 0.000 claims description 8
- 230000008646 thermal stress Effects 0.000 claims description 5
- 239000000047 product Substances 0.000 claims 2
- 239000006227 byproduct Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 38
- 238000010168 coupling process Methods 0.000 description 38
- 238000005859 coupling reaction Methods 0.000 description 38
- 238000000605 extraction Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 6
- 239000004926 polymethyl methacrylate Substances 0.000 description 6
- 238000005530 etching Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000005357 flat glass Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
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- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 206010003084 Areflexia Diseases 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000012362 glacial acetic acid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 229910052738 indium Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010329 laser etching Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
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- 235000009566 rice Nutrition 0.000 description 1
- RTHYXYOJKHGZJT-UHFFFAOYSA-N rubidium nitrate Inorganic materials [Rb+].[O-][N+]([O-])=O RTHYXYOJKHGZJT-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/0222—Scoring using a focussed radiation beam, e.g. laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
- C03B33/082—Severing cooled glass by fusing, i.e. by melting through the glass using a focussed radiation beam, e.g. laser
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/09—Severing cooled glass by thermal shock
- C03B33/091—Severing cooled glass by thermal shock using at least one focussed radiation beam, e.g. laser beam
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
- B23K2103/54—Glass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Laser Beam Processing (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Disclosed herein is the glassware of such as light guide plate, and it includes first surface, opposite second surface and the thickness extended between them；And at least one side, the side include about 15% inclined-plane that thickness is less than or equal to about 35% laser ablated region of glassware thickness or height is less than or equal to glassware thickness.There is disclosed herein the display device comprising these glasswares and the method for producing these glasswares.
Description
The cross reference of related application
The U.S. of the application according to 35 U.S.C. § 119 Serial No. 62/162373 for requiring to submit on May 15th, 2015
The priority of provisional application, the application based on its content, and by reference to by its full text include herein.
Technical field
The disclosure relates generally to glassware and the display device comprising these glasswares, more specifically, is related to
Glass light guides and its manufacture method with least one laser cut edges.
Background
Liquid crystal display (LCD) is widely used in various electronic products, such as mobile phone, notebook computer, electronic plane
Computer, television set and computer display.For the growing demand driving of bigger high resolution flat display
To the demand of the big high quality glass base material for display.For example, glass baseplate can be used as the light guide plate (LGP) in LCD,
Light source can be coupled to the light guide plate.The thickness and/or screen size of LCD device can be entered by the light-emitting area and/or light of light guide
The influence of the size and/or property of reflective surface.
Current light guide is often manufactured by polymethyl methacrylate (PMMA).However, PMMA has of a relatively high heat
The coefficient of expansion (such as about more order of magnitude greater than glass), this may be needed in light source (LED) and light guide when designing LCD device
Between there is bigger space.The gap can reduce the light efficiency from light source couples to light guide, and/or need bigger side
Frame blocks the edge of display.Be additionally, since its relatively weak mechanical strength, it may be difficult to by PMMA manufacture it is sufficiently large simultaneously
It is and sufficiently thin to meet the light guide of current consumer demand.Therefore, PMMA light guides can be blocked because of frame or can not manufactured for institute
Need the sufficiently large sheet material of display sizes and limitation is produced to the electrode surface area available for display image.
The substitute that glass light guides are used as to PMMA is had pointed out, because glass light guides have low optical attenuation, low-thermal-expansion system
Number and high mechanical properties.However, the light incident surface area of glass baseplate can be influenceed by glass cutting method.For example, can
Using mechanical scribing technology come glass-cutting to provide perforation short-term, glass can be broken along these short-terms with relatively straight line
Split, still, this method can cause glass edge that significantly damage, such as broken, cracking and/or sheet material fracture occurs.Often in master
(such as near 90 ° of sharp corners) observe the defects of glass edge at intersecting area between surface and edge.In order to
Improve reliability and reduce defect, finishing can be carried out to glass edge, the finishing can eliminate all or one frequently by introducing
The inclined-plane of segment glass undamaged portion is carried out.For example, in the case of 0.7mm plate glass, it can polish or polish off about
0.2mm thickness, with inclined-plane as the generation on each corner of side.
Although the technology can improve the reliability of glass, consider that it can produce unfavorable effect, because tiltedly from optical angle
Face, which can reduce, can be used for the surface area that the light from light source is coupled into light guide at light guide edges.For example, 0.7mm plate glass
Middle 0.2mm inclined-plane can cause coupling efficiency to reduce about 14% or more compared to flat rather than inclined-plane edge.Therefore, subtract
The inclined-plane of light incident edge would is that favourable less, because this can allow light guide thinner, so as to allow total LCD device thinner.
It also will be advantageous that and improved method be provided, to carry out finishing to the edge of light guide plate, can be used for and light source couples with increase
The surface area of light incident edge.
Summary of the invention
In various embodiments, this disclosure relates to the glassware of such as light guide plate, it includes first surface, opposite
Second surface and the thickness extended between them；And at least one side, it is that glassware is thick that the side, which includes thickness,
About 35% or smaller laser ablated region of degree.The disclosure further relates to glassware, and it includes first surface, opposite second
Surface and the thickness extended between them；And at least one side, the side include height as glassware thickness
About 15% or smaller inclined-plane.There is disclosed herein the display device comprising these glasswares.
In some embodiments, side can include non-laser ablation or non-inclined-plane region.According to various embodiments,
The scattering parameter of the light incident surface of laser ablated region is smaller than 0.1, rather than the light incident surface in laser-induced thermal etching region dissipates
Penetrate parameter and be smaller than about 0.2.In some nonrestrictive embodiments, the light incident surface in inclined-plane Hua Hefei inclined-planes region
Scattering parameter be smaller than about 0.1.In another embodiment, the display device comprising light guide can be also included coupled at least
The light source of one side, such as light emitting diode (LED).According to various embodiments, light source can be in neighbouring non-laser ablated region
The opening position in domain or non-inclined-plane region is coupled at least one side.
The method for manufacturing these glasswares or light guide plate is also disclosed, methods described includes providing glass plate, institute
Stating glass plate has first surface, opposite second surface and the thickness extended between them；Make glass plate and laser the
Contacted on one surface along predefined paths, to form defect line；And glass plate is set to be separated into two or more along defect line
Individual part, to form the glassware for including at least one side, the side is less than or equal to the glass plate comprising thickness
About 35% laser ablated region of thickness.
There is disclosed herein the method for manufacturing glassware, methods described includes providing glass plate, the glass plate
With first surface, opposite second surface and the thickness extended between them；Make glass plate and laser on the first surface
Contacted along predefined paths, to form groove；And glass plate is separated into two or more parts along groove, to be formed
Include the glassware of at least one side, the side includes about 15% that height is less than or equal to the sheet thickness
Inclined-plane.
In various embodiments, may include can be perpendicular to the straight line of glass plate adjacent side for predefined paths.According to another
In a little embodiments, defect line can include about 35% depth extended in glass plate less than or equal to sheet thickness and swash
Light ablation hole and/or a plurality of defect line that second surface is extended to along substantially perpendicular directions from first surface.At other
In embodiment, glass plate is separated into two or more parts may include to apply machine on or around defect line or groove
Tool stress or thermal stress.
The supplementary features and advantage of the disclosure, Partial Feature and advantage pair therein are proposed in the following detailed description
It is readily appreciated that for those skilled in the art according to being described, or by implementing to include described in detail below, right
Method described herein including claim and accompanying drawing and be realized.
It should be appreciated that foregoing general description and the following detailed description all describe the various implementations of the disclosure
Mode and be intended to offer be used for understand the property of claim and the overview of characteristic or framework.Comprising accompanying drawing for enter
One step understands the disclosure, and accompanying drawing is incorporated in the present specification and a part for constitution instruction.Accompanying drawing is exemplified with the disclosure
Various embodiments, and it is used for explaining principle and the operation of the disclosure together with the description.
The brief description of accompanying drawing
Can further understand in conjunction with the following drawings it is described in detail below, wherein, in the conceived case, identical accompanying drawing
Mark represents identical component, it should be appreciated that accompanying drawing is not drawn necessarily to scale.
Fig. 1 includes two mechanically formed inclined-planes exemplified with the glassware with side, the side；
Fig. 2 is the figure line that the coupling efficiency of Fig. 1 glassware changes with bevel altitude；
A kind of sides that includes laser ablated region of Fig. 3 A exemplified with glassware；
Fig. 3 B are the SEM sections according to the glassware comprising laser ablated region of the various embodiments of the disclosure
Figure；
The glasswares that includes laser ablated region of the Fig. 4 exemplified with some embodiments according to the disclosure；
Fig. 5 is the figure line that the coupling efficiency of Fig. 4 glassware changes with the thickness of laser ablated region；
The glasswares that includes laser ablated region of Fig. 6 A~B exemplified with some embodiments according to the disclosure；
Fig. 7 A~B are the figures that the coupling efficiency of Fig. 6 A~B glassware changes with the thickness of laser ablated region
Line；
Fig. 8 is the figure line that coupling efficiency changes with scattering parameter Sigma；
Fig. 9 A~B include a side for being cut by laser inclined-plane exemplified with having for the various embodiments according to the disclosure
Glassware；And
Figure 10 A~C are exemplified with the method for manufacturing glassware according to various embodiments.
Detailed description of the invention
Glassware
Disclosed herein is glassware, and it includes first surface, opposite second surface and the thickness extended between them
Degree；And at least one side, the side include the about 35% or smaller laser ablation area that thickness is glassware thickness
Domain.Exemplary glassware may include but be not limited to glass light guide plate.The disclosure further relates to glassware, and it includes the first table
Face, opposite second surface and the thickness extended between them；And at least one side, it is glass that the side, which includes height,
About 15% or smaller inclined-plane of glass products thickness.There is disclosed herein the display device comprising these glasswares.
Glassware or light guide plate can include any material known in the art being used in display and other similar devices
Material, include but is not limited to：Aluminosilicate, alkali alumino-silicates, borosilicate, alkali borosilicates, aluminoborosilicate, alkaline aluminium
Borosilicate and other suitable glass.In some embodiments, glassware can have the thickness less than or equal to about 3mm
Degree, the thickness of e.g., from about 0.3mm~about 2mm, about 0.7mm~about 1.5mm or about 1.5mm~about in the range of 2.5mm, including they
Between all scopes and subrange.Suitable for light guide plate commercially available glass non-limitative example include for example purchased from
The EAGLE of Corning Inc (Corning Incorporated)IrisTM、LotusTMWithGlass.
Glassware can include first surface and opposite second surface.In some embodiments, these surfaces can be with
It is plane or substantially planar such as substantially planar and/or horizontal.In various embodiments, the first and second table
Face can be parallel or substantially parallel.Glassware can also include at least one side, for example, at least two sides, at least three sides
Side or at least four sides.For a nonrestrictive example, glassware can include rectangle or pros with four edges
Shape glass plate, although it is contemplated that other shapes and construction, they also fall into the scope of the present disclosure.
Exemplified with a kind of glassware, such as light guide plate, it is included by mechanical scribing-fracture technique and with laggard Fig. 1
Row polishes and caused inclined-plane.Illustrated glassware 100 can include first surface 105, second surface 110 and side 115.
The thickness T of glassware 100 extends between the first and second surfaces., can be by beating after mechanical scribing and fracture is carried out
Mill and/or polishing remove the edge defect on side 115, to produce mechanically formed inclined-plane 120.These inclined-planes 120 can have
Height h.The exemplary height h on inclined-plane 120 can be at least about the 25% of glassware gross thickness T.For example, in 0.7mm heavy sheet glass
In the case of plate, it is about the defects of 0.2mm inclined-plane is to correct at the two corners of side 115 that height, which can be used,.Can be with any appropriate
Angle instrument bevel 120, in the range of e.g., from about 30 °~about 60 °, such as about 45 ° of angle.
Light source 140 as such as LED can be coupled to side 115.Light source can have height H, and it can be glassware
At least about the 50% of gross thickness T, for example, at least about 60%, at least about 70%, at least about 80%, at least about 90%, or glass
The 100% of products thickness T.The light source with the height H beyond glassware thickness T also can be used in some embodiments.
Can include on the surface with light source 150 is neighbouring or the reflector 150 that adjoins (reflector 150 adjoins second surface shown in Fig. 1
110), to cover the gap between light source 140 and side 115 (gap width=D).According to nonrestrictive embodiment, light
Source can be in the range of e.g., from about 0.01mm~about 2mm, e.g., from about with the side standoff distance D of glassware, the distance D
0.04mm~about 1.8mm, about 0.5mm~about 1.5mm, about 0.6mm~about 1.2mm or about 0.8mm~about 1mm, including they are straight
All scopes and subrange connect.
Fig. 2 is that the coupling efficiency of glassware shown in Fig. 1 changes with bevel altitude (with and without reflector)
Figure line.The graph model is assumed including some：0.7mm thickness of glass T；0.5mm light source (LED) height H；Between 0.04mm
Gap width D；45 degree of inclined-plane；Glass refraction (Nd)=1.497；And reflector is with 99% reflection and lambert's scattering.
As shown in Fig. 2 with bevel altitude h increase, coupling efficiency declines.For the light of no inclined-plane side (height=0)
Lead, coupling efficiency may be up to 91% (having reflector) or 88% (areflexia device).Studies have shown that is highly 0.2mm edge
Inclined-plane makes coupling efficiency reduce by 11% (having reflector) or 14% (areflexia device).Therefore, Fig. 2 illustrates, in order to reduce side
Edge defect and the inclined-planeization that carries out can cause undesirable light loss.The alternative edge finishing side of light loss with reduction
Method can advantageously provide the bigger and/or thinner display that display performance is improved.
According to the first embodiment shown in Fig. 3 A, which illustrates the glassware for including laser ablated region 225
The profile of 200 side 215.Laser ablated region 225 can include for example multiple laser ablated holes or damage track 230.Can
The glass in laser ablated region 225 is modified by nonlinear effect using high energy density laser.Along predetermined
Line or path carry out laser scanning and and then can produce defect line, and the defect line can limit to be separated from glass plate one or more
The border of multiple sheet glass or shape.In some embodiments, laser ablated region can not extend across glassware 200
Whole thickness T.For example, the thickness t1 of laser ablated region 225 is smaller than about the 35% of glassware thickness T, it is, for example, less than thickness
Spend about 30%, about the 25% less than thickness T or about 20% less than thickness T of T, including all scopes and son between them
Scope.In various embodiments, the thickness T of glassware 200 may be less than or equal to about 3mm, such as in about 0.3mm~about
In the range of 2mm, about 0.7mm~about 1.5mm or about 1.5mm~about 2.5mm, including all scopes between them and sub- model
Enclose.Therefore, in some embodiments, the thickness t1 of laser ablated region 225 may be less than or equal to about 1mm, such as about
0.05mm~about 0.9mm, about 0.1mm~about 0.8mm, about 0.2mm~about 0.7mm, about 0.3mm~about 0.6mm or about 0.4mm~
In the range of about 0.5mm, including in all scopes and subrange between them.In some embodiments, laser ablation area
The thickness t1 in domain can be such as linear change, random change.Therefore, thickness t2 also can with t1 respective change.
The remainder of side 215 can include non-laser-induced thermal etching region 235, such as not comprising laser ablated holes and/or non-
Linearly modified region.The region 235 can have any thickness t2 so that t1+t2=T.For example, non-laser etching area 235
Thickness t2 can be more than glassware thickness T about 65%, be greater than thickness T about 70%, more than thickness T about 75% or
Person is more than about the 80% of thickness T, including all scopes and subrange between them.In some embodiments, thickness t2 can
Less than about 2mm, such as in the range of about 0.25mm~about 1.5mm, about 0.5mm~about 1.2mm or about 0.8mm~about 1mm, bag
Include all scopes and subrange between them.Although first surface 205 is adjoined in the laser ablated region 225 shown in Fig. 3 A,
And non-laser ablated area 235 adjoins second surface 210, but it is to be understood that, can exchange without restriction these orientation and
Mark, surface is referred to as " first " and " second " surface merely for the sake of discussion purpose herein.
Fig. 3 B are comprising the thick healthy and free from worry Iris of 0.7mmTMThe cross-sectional scanning electron microscope of the side of the glassware of glass
(SEM) image.As described in reference chart 3A above, side can include laser ablated region 225 and non-laser ablated area 235.Such as
As Fig. 3 B are confirmed, using light laser energy by nonlinear effect by laser ablated region modification to desired depth.
In the embodiment shown, the thickness t1 of laser ablated region is 0.24mm, and the gross thickness T of glass baseplate is 0.7mm.Cause
This, as illustrated, t1/T=0.34, such as t1 are less than or equal to about the 35% of gross thickness T.In some embodiments, laser
The light incident surface of ablated area 225 can have the scattering parameter (west less than about 0.2, for example, less than about 0.15 or less than about 0.1
Ge Ma).Similarly, the light incident surface of non-laser ablated area 235 can be with less than about 0.1, for example, less than about 0.05 or more
Low scattering parameter (Sigma).Sigma's scattering parameter can be directly proportional to the surface roughness in region, and can also represent to throw
The width of Gaussian Profile in shadow plane.In some embodiments, the scattering parameter of non-laser ablated area 235 is smaller than laser
The scattering parameter of ablated area 225, therefore there is relatively smoother light incident surface.When by along using caused by laser
Defect line makes glass plate ftracture or fracture when the glass plate is separated into two (or more) parts, can produce non-laser ablation
The relatively smoother surface in region 235.
A kind of additional illustration of exemplary glassware 200 is shown in Fig. 4.The glassware can have in first surface
The thickness T extended between 205 and second surface 210 and side 215.Side 215 can include the laser ablation with thickness t1
Region 225.Light source (such as LED) 240 with height H can be coupled to side 215, and be located in first surface 205
With the center between second surface 210, although any alternative orientation can be used, as described in more detail below that
Sample.First reflector 245 and/or the second reflector 250, which can be positioned at, adjoins first surface 205 and/or second surface 210, with
Cover the gap (gap width=D) between light source 240 and side 215.Suitable reflector may include to cover whole visible lights
Compose the broad-band reflective device of (about 420~700nm).Herein, the first reflector can be described as " front " reflector, represent the first table
Face is light-emitting area, and the second reflector can be described as " back side " reflector.It is to be understood, however, that it can exchange without restriction
These orientations and mark, these reflectors are referred to as " first "/" front " herein and " second "/" back side " reflector is only
For discussion purposes.
Fig. 5 is the coupling efficiency of glassware shown in Fig. 4 with (only with back reflector or with front and back
Reflector) thickness of laser ablated region and the figure line that changes.The graph model is assumed including some：0.7mm glass is thick
Spend T；0.5mm light source (LED) height H；0.04mm gap width D；LED is along side central alignment；Glass refraction
(Nd)=1.497；Lambertian reflector with 99% reflection；And laser ablated region has Gaussian function scattering and western lattice
Agate=0.36.As shown in figure 5, with laser ablated region thickness t1 increase, coupling efficiency reduces.Burnt for no laser
The light guide of region (thickness=0) is lost, coupling efficiency may be up to 91.5% (having front and back reflector) or 91% (only
Back reflector).Be shown to the laser ablation up to the side of 0.24mm depth reduces coupling efficiency (see, for example, Fig. 3 B)
2.43% (there is front and back reflector) or 2.38% (only back reflector).Therefore, Fig. 5 is shown, compared to side
Inclined-plane region (see, for example, Fig. 2) on side, laser ablated region can cause coupling efficiency to improve at least about 8.6%.
(such as make the edge of light source 240 and second surface 250 when making light source edge be alignd with non-laser ablation edge 235
Alignment, as shown in exemplary in Fig. 6 A), or make light source edge align with laser ablated region 225 (such as to make light source 240
Edge aligns with second surface 250, as being schematically shown in Fig. 6 B) when, it was observed that the result being slightly different.Certainly, should manage
Solution, laser ablated region can abut first surface (Fig. 6 A) or second surface (Fig. 6 B), and light source can be with first surface (not
Diagram) or second surface (as shown in the figure) alignment.Table I shows experimental result, compare LED light coupling from the two regions when
Difference on coupling efficiency.Shown in following Table I, when light source aligns with non-laser ablated area 235, coupling efficiency loss
(compared to the light guide with " minute surface " side (such as without laser ablated region)) for 2.52% (no front surface reflector) or
1.71% (there is front surface reflector).These results also confirm among other things, can strengthen coupling using front surface reflector
Close efficiency.In addition, when light source aligns with laser ablated region (no front surface reflector), coupling efficiency loss increases to
3.33%, show that light source can strengthen coupling efficiency with aliging for non-laser ablation (smoother) region.
Table I：The coupling efficiency loss of LGP with laser ablation edge
* the 0.7mm with 0.24mm laser ablations side area is thickIrisTMGlass；It is separated by 0.04mm with side
0.5mm LED light sources
Fig. 7 A~B are only laser ablations with back reflector (Fig. 7 A) or with front and back reflector (Fig. 7 B)
The figure line that the coupling efficiency in region changes with the laser ablated region thickness.This two figure lines are to light source alignment light guide plate side
The non-laser ablated area of the laser ablated region on side and light source alignment light guide plate side compares.These graph model bags
Include some hypothesis：0.7mm thickness of glass T；0.5mm light source (LED) height H；0.04mm gap width D；Glass refraction
Rate (Nd)=1.497；Lambertian reflector with 99% reflection；And laser ablated region has Gaussian function scattering and west
Ge Ma=0.36.For Fig. 7 A~B, it was observed that light source position can influence coupling efficiency.For example, in 0.24mm laser ablation area
Under the thickness of domain, light source alignment non-laser ablated area improves 3.1% compared to light source alignment laser ablated region, coupling efficiency
(only there is back reflector, Fig. 7 A) and 2.8% (there is the back side and front surface reflector, Fig. 7 B).
Result shown in Fig. 7 A~B implies that the surface nature (such as smoothness or roughness) of side can meaningfully shadow
Ring coupling efficiency.Fig. 8 is to show the figure line that coupling efficiency changes with scattering parameter (Sigma), scattering parameter and glass table
The roughness in face is directly proportional.The graph model is assumed including some：2mm thickness of glass T；1.5mm light source (LED) height H；
And 1.4mm gap width D.As shown in figure 8, as the increase of Sigma's (or surface roughness), optical coupling coefficient are usual
Decline.However, in 0 ＜ Sigmas ＜ 0.2 region, the loss of coupling efficiency in curve remainder unlike observing
It is so big.Accordingly, it is possible to it is beneficial that use Sigma's scattering parameter less than 0.2 along side edge surface.In some embodiment party
In formula, the scattering parameter of laser ablated region is smaller than about 0.2, for example, less than about 0.15, or less than about 0.1.Similarly, it is non-to swash
The scattering parameter of light ablated area is smaller than about 0.1 or even less than about 0.05.
Laser cutting technique also can be used to provide tool bevelled glassware, as shown in Fig. 9 A~B.Below, to
Discussed in the method for producing these glasswares (such as light guide plate).It is similar with Fig. 4 and Fig. 6 A~B glassware, glass
Glass product 300 can include first surface 305, second surface 310 and the thickness T extended between them and side 315.Side
315 part can include inclined-plane 360, and it can adjoin first surface or second surface, and (diagram is that inclined-plane 360 adjoins the first table
Face 305).Inclined-plane 360 can have width w2 and height h2.In some embodiments, the width w2 on inclined-plane 360 may correspond to or
It is proportional to the width using laser-formed predefined paths.For example, in some embodiments, it is micro- that width w2 is smaller than about 10
Rice, for example, less than about 8 microns or less than about 5 microns (for example, less than about 5,4,3,2 or 1 microns).In various embodiments, it is wide
Degree w2 can be equal to about half of the width of the laser-formed defect line of utilization.In additional embodiment, width w2 can be
At least about the 10% of glassware gross thickness T, for example, thickness T at least about 15%, at least about 20%, at least about 25% or at least
About 30%, including all scopes and subrange between them.In some embodiments, the height h2 on inclined-plane 360 can be corresponded to
In or be proportional to depth using laser-formed predefined paths.The height h2 on inclined-plane can be, for example, less than glassware thickness T
About 30%, be, for example, less than thickness T about 25%, about 20% less than thickness T, about 15% less than thickness T, less than thickness T
About 10% or about 5% less than thickness T, including all scopes and subrange between them.For example, the height h2 on inclined-plane can
Less than about 1mm, for example, about 0.05mm~about 0.9mm, about 0.1mm~about 0.8mm, about 0.2mm~about 0.7mm, about 0.3mm~
In the range of about 0.6mm or about 0.4mm~about 0.5mm, including in all scopes and subrange between them.
The glassware that lower Table II shows shown in Fig. 9 A~B is coupled to coupling efficiency during light source (LED).Light source
(such as in the embodiment illustrated in Fig. 9 A, light source edge and second surface 310 are right with the non-inclined-plane region alignment of side
Together).However, it is to be understood that inclined-plane region can abut first surface (as shown in the figure) or second surface (not shown).Such as
Shown in lower Table II, when light source and non-inclined-plane region alignment, coupling efficiency is lost (compared to " minute surface " side (example
Such as without laser ablated region) light guide) be 6.93% (no front surface reflector) or 5.32% (there is front surface reflector).Therefore,
As laser ablation light guide plate, it can also strengthen coupling efficiency, and inclined-plane compared to a mechanically formed using front surface reflector
(see, for example, Fig. 2), laser cutting inclined-plane can reduce light loss.
It is worth noting that, the coupling efficiency loss compared to the glass light guides on mechanical inclined-plane (has backside reflection
It is 11% during device, or 14%), to be cut by laser the coupling efficiency damage of the glass light guides on inclined-plane during without back reflector
Mistake reduces nearly half.It is not intended to be limited to theory, it is believed that the improvement can be due to the fact that cause：(a) relative to two machines
The inclined-plane that tool is formed, a laser cutting inclined-plane is only existed in some embodiments；And/or (b) relative to mechanical scribing, disconnected
Split and polishing technology, the defects of insignificant and/or surface damage are generated in laser cutting process.Therefore, in some realities
To apply in mode, glass light guide plate disclosed herein only can include an inclined-plane, and the inclined-plane adjoins first surface or second surface,
So as to which the loss of coupling efficiency be minimized, the otherwise presence on second inclined-plane may cause the loss of coupling efficiency.
In addition, compared to laser ablation light guide plate (LED aligns with non-laser ablated area), the loss of light efficiency will increase
More than 2 times.It is not intended to be limited to theory, it is believed that extra light loss can be due to the fact that cause：(a) inclined-plane region 360；
And/or (b) depends on the distortion plumage line 365 for separating the method for (such as fracture) glass plate and can be formed in light guide.Turn round
Qu Yuwen can be such that glass plate is formed when being broken after such as laser scribing using mechanical force, as detailed below.
Table II：The coupling efficiency loss of LGP with laser cutting inclined-plane edge
* have the 0.7mm on the laser cutting inclined-plane that 0.165mm is thick, 0.085mm is wide thickIrisTMGlass；With side
It is separated by 0.04mm 0.5mm LED light sources
* has the 0.7mm of 0.24mm laser ablations side area thickIrisTMGlass；It is separated by 0.04mm with side
0.5mm LED light sources
Method
There is disclosed herein the method for manufacturing glassware or light guide plate, methods described includes providing glass plate, institute
Stating glass plate has first surface, opposite second surface and the thickness extended between them；Make glass plate and laser the
Contacted on one surface along predefined paths, to form defect line；And glass plate is set to be separated into two or more along defect line
Individual part, to form the glassware for including at least one side, the side is less than or equal to the glass plate comprising thickness
About 35% laser ablated region of thickness.
There is disclosed herein the method for manufacturing glassware or light guide plate, methods described includes providing glass plate, institute
Stating glass plate has first surface, opposite second surface and the thickness extended between them；Make glass plate and laser the
Contacted on one surface along predefined paths, to form groove；And glass plate is set to be separated into two or more portions along groove
Point, to form the glassware for including at least one side, the side includes height and is less than or equal to the sheet thickness
About 15% inclined-plane.
Below, the method for manufacturing the glassware shown in Fig. 4 and Fig. 6 A~B is discussed with reference to figure 10A~C.
Glass plate 400 can be provided, it has first surface, opposite second surface and the thickness extended between them and at least one
Individual side.Can be for example, by making glass plate along the mobile laser of predefined paths 470 (dotted line) on the surface of static glass plate
First or second surface and laser contact.Or laser can be made static, and glass plate is moved along predefined paths.Such as figure
Shown, predefined paths 470 can be substantially perpendicular to the straight line of at least one adjacent side 475, however, it is possible to contemplate other
Predefined paths, including nonlinear path.Moreover, can describe on the surface more than a kind of predefined paths, it is more complicated to be formed
Shape and/or glass plate 400 is separated into more than two part.Contact with laser (such as ultra-short pulse laser) may include edge
The single laser pulse of predefined paths, or multiple pulses can be used to increase the depth of laser ablated region and/or width.
Pulse can have the duration for being for example shorter than one second, for example, being shorter than a nanosecond or being shorter than a psec.Suitable for laser ablation and
The nonrestrictive illustrative methods and laser of glass-cutting be disclosed in for example U.S. Application No. 14/145525,14/530457,
14/535800、14/535754、14/530379、14/529801、14/529520、14/529697、14/536009、14/
530410 and 14/530,244, international application no PCT/EP14/055364, PCT/US15/130019 and PCT/US15/13026
In, above-mentioned whole documents are incorporated herein by reference in their entirety.
Laser ablated region can be produced by carrying out irradiation to glass plate 400 along predefined paths 470 using laser, using height
Energy density laser is modified by nonlinear effect to the region.Narrow defect line can be produced by being scanned on predefined paths
480 (width=W), it limits shape to be separated in subsequent step.As shown in Figure 10 A, defect line 480 can have and be adapted for carrying out
Required optical property and/or separation or any width W of broken curve.In some embodiments, width W can be at about 1 micron
In the range of~about 10 microns, e.g., from about 2 microns~about 9 microns, about 3 microns~about 8 microns, about 4 microns~about 7 microns or about
5 microns~about 6 microns, including all scopes and subrange between them.With reference to figure 10C, laser can incite somebody to action along predefined paths
Glass plate modification is to any required depth, to form the laser ablated region with thickness t1.In addition, laser can produce it is a plurality of
The defect line of second surface is extended to along substantially perpendicular directions along predefined paths 470 from first surface.So as to predetermined road
Footpath and/or defect line can depict required shape, and can be established for climing by crackle along the vertical defect line of defect line
Prolong or path that resistance that any other mechanically or thermally isolation technics is separated is minimum.According to some embodiments, laser is not
Meeting not substantially changes gross thickness T of the glass plate in side edge.
For defect line 480 once formed, separation can be by defect line or being applied around artificial and/or thermal stress to send out
It is raw.Manually or mechanically stress or the pressure of such as sufficient amount can be applied to produce tension force in vertical defect line, so as to cause edge
Defect line to be broken.It any appropriate thermal source can be used to apply thermal stress, answered with being produced on or near defect line
Power area, so as to form tension force in vertical defect line, and trigger the part of glass plate or separate certainly comprehensively.For separation of glasses
The method of plate can be implemented alone or in combination, and can be sharp with being related to for the parameter (such as active force, temperature etc.) of separation method
The various technological parameters (such as laser scanning speed, laser power, pulse width, repetitive rate, burst length etc.) of light and change.
Thus glass plate 400 can be separated into two or more parts (two parts 485,490 shown in Figure 10 B).
Reference section 485, the glass part can have length L and side 415.Side 415 can include the laser ablation with width w1
Region 425.The width w1 of laser ablated region can change with such as defect line width W and/or separation method.At some
In ((not shown)) embodiment, if for example, essentially all of defect line is all incorporated into side 415 as laser ablation area
Domain 425, then w1 ≈ W.In other embodiments, if for example, a part of defect line forms the laser ablation area of side 415
Domain 425, then w1 ＜ W.In other (as depicted) embodiments, for example, being sent out among substantially along defect line
In the case of raw fracture, 2*w1 ≈ W.
The perspective of a part for resulting glassware 500 (485) is illustrated in Figure 10 C, and it has side 515, institute
Stating side 515 has laser ablated region 525 described with reference to FIG. 4.Laser ablated region 525 has total along glassware
The thickness t1 of thickness T parts extension, and the width w1 along the extension of glassware total length L (total length not shown) part.
In some embodiments, method described herein can be used for two glass systems of the manufacture with substantially the same side 515
Product.
There is disclosed herein the method for the glassware for forming Fig. 9 A, while not shown in accompanying drawing.Fig. 9 A glass
Glass product can be according to for example preparing above with reference to the program described in Figure 10 A~B.However, with not substantially changing glassware
Side edge thickness T laser ablation methods are included in glassware by contrast, for forming Fig. 9 A method of glassware
Side 315 in formed inclined-plane 360.Therefore, glass pane surface is made to cause with laser contact along predefined paths pre- along this
Determine path and form breach or groove.With line the defects of Figure 10 A similarly, groove can have width, and can stretch into and be enough to be formed
The depth (with reference to figure 9A) on the inclined-plane that thickness is w2 and height is h2.
Suitable laser for being cut by laser breach or groove into glass plate may include such as CO2Laser, UV laser
With the infrared laser operated under greater than about 3 microns of wavelength.These laser such as U.S. Patent Application No. 14/145525,
14/530457、14/535800、14/535754、14/530379、14/529801、14/529520、14/529697、14/
536009th, 14/530410 and 14/530,244, international application no PCT/EP14/055364, PCT/US15/130019 and PCT/
It is described in US15/13026, above-mentioned whole documents are incorporated herein by reference in their entirety.Suitable cutting technique may include example
Such as CO2Laser scribe technology, it utilizes CO2Glass quickly heats up to strain point of glass by laser, near strain point of glass or is higher than
The temperature of strain point of glass.After the heating of rapid laser, the rapid quenching using such as solid water or atomized water spray can be carried out
Processing.Rapidly heating and Quenching Treatment can produce the tensile stress (σ) that can utilize following formula estimation in glass plate：
Wherein, α is thermal coefficient of expansion, and E is Young's modulus, and Δ T is the temperature from laser beam and cooling injection quenching cycles
Decline.It can be used and may be up to about 100MPa in some instances for tensile stress caused by the processing of display glass.
After laser scribe processing, mechanically decoupled (fracture) or follow-up separation by laser, such as CO can be carried out2Separation by laser
Step.In some embodiments, scribing-fracture technique can be used.Because fracture strength can with crack depth direct correlation,
In some embodiments, the depth for cutting the groove of glass surface can be at least about the 10% of thickness of glass, be greater than glass
About the 15% of thickness or about 20% more than thickness of glass, it is greater than about 25% or the pact more than thickness of glass of thickness of glass
30%.However, when cutting glass by laser plate, make difficulty and make the inclined-plane of resulting glassware high that glass plate is broken
Competitiveness between degree minimum, which is considered, should obtain balance.It is to make distortion plumage line that another during mechanically decoupled glass plate, which is considered,
Generation it is minimized, the distortion plumage line can be produced by applying to the tensile stress of breach or groove.Distorting plumage line can notable shadow
The coupling efficiency of pilot's tabula rasa (as above shown in Table II).Therefore, according to various embodiments, glass light guides disclosed herein can
Comprising distortion plumage line, or can be substantially free of distortion plumage line.
According to various embodiments, first and/or second surface of glassware can be patterned by multiple light extraction features.
As used herein, term " patterning " is intended to indicate that multiple elements and/or feature are present in any given pattern or design
On the surface of glassware, they can be for example random or arrangement, repeating or non-repetitive.For example, in light extraction
In the case of feature, these features can be dispersed on whole second surface as the textural characteristics for for example forming rough surface.
In various embodiments, the light extraction features being present on first and/or second surface of glassware can wrap
Site containing light scattering.For example, the first surface of glassware can be textured, etched, coated, damage and/or is roughened
To produce light extraction features.The non-limitative example of these methods include for example with damage from laser surface, with acid etching surface with
And use TiO2Coating surface.In some embodiments, laser can be used for cutting hole in glass plate, and for damaging first
And/or second surface, to produce light extraction features.According to various embodiments, extraction feature patternable into suitable density,
To produce substantially uniform illumination.Light extraction features can produce surface scattering and/or the volume scattering of light, and this depends on feature
Depth in glass surface.The optical signature of processing parameter used to these features during using such as generation extraction feature
It is controlled.
Glassware can be handled according to any means known in the art, to produce light extraction features, for example (,) it is common
With the method described in pending and jointly owned international patent application no PCT/US2013/063622, the document is by drawing
In full include herein.For example, glass plate can be polished and/or polished, to realize required thickness and/or surface product
Matter.Then, optionally glass is cleaned, and/or the application of the glass surface to that will be etched is removed and depolluted
The processing of thing, such as surface is exposed in ozone.
Also glass plate is carried out using such as ion exchange chemical enhanced.During ion-exchange treatment, glass plate
Ion in surface or glass plate near it can for example be come from the bigger metal ion displacement in salt bath.It is bigger from
Son is incorporated into glass, can be by producing compression stress in near-surface region come strengthening glass sheets.Can be in glass core area
Corresponding tensile stress is produced in domain, to balance the compression stress.
Can be for example, by the one default time in glass immersion molten salt bath be carried out into ion exchange.Exemplary 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 have the ability to determine time and temperature according to required application.For a nonrestrictive example, melting
The temperature of salt bath can be in the range of about 400 DEG C~about 800 DEG C, e.g., from about 400 DEG C~about 500 DEG C, and predetermined time period can be
In the range of about 4~about 24 hours, e.g., from about 4 hours~about 10 hours, although the combination of other temperature and times can also examine
Consider.One nonrestrictive example is glass can be immersed into KNO at e.g., from about 450 DEG C3About 6 hours in bath, so that obtain can
Introduce the layer rich in K of surface compression stress.
A nonrestrictive embodiment is lifted, the surface that can make to etch is exposed in acid bath, and the acid bath is example
Such as glacial acetic acid (GAA) and ammonium fluoride (NH4F mixture), the ratio of the two is for example about 1:1~about 9:In the range of 1.During etching
Between can in the range of e.g., from about 30 seconds~about 15 minutes, and etching can carry out at room or elevated temperature.It is such as sour dense
Degree/ratio, temperature and/or processing parameter as the time can influence size, shape and the distribution of resulting extraction feature.This
Art personnel have the ability to change these parameters, to realize required surface extraction feature.
As used herein, term " optical coupling " is intended to indicate that light source is positioned in the edge of glassware, to introduce light into
Guiding element.It is captured and due to complete according to some embodiments, light when light is injected into glassware (such as glass light guide plate)
Internal reflection (TIR) and rebounded in light guide plate, until its shock first or second surface on light extraction features.Such as this paper institutes
With term " light-emitting area " is intended to indicate that the surface for launching light from light guide plate to observer.For example, first or second surface can be with
It is light-emitting area.Similarly, term " light incident surface " is intended to indicate that the surface coupled to light source (such as LED), so that light enters
Enter light guide.For example, the side of light guide plate can be light incident surface.
Glassware and light guide plate disclosed herein can be used for various display devices in, including but not limited to LCD or its
The display that it is used in TV, advertisement, automobile and other industries.It can be included for the conventional backlight unit in LCD various
Component.One or more light sources, such as light emitting diode (LED) or cold-cathode fluorescence lamp (CCFL) can be used.Conventional LCD
It can use built with color conversion phosphor to produce the LED of white light or CCFL.According to the various aspects of the disclosure, using herein
The display device of disclosed glassware can include the blue light (UV of at least one such as near UV light (about 300~400nm) of transmitting
Light, about 100~400nm) light source.Light guide plate and device as described herein can be additionally used in any appropriate illumination application, such as
But it is not limited to lighting apparatus etc..
It should be understood that multiple disclosed embodiments can relate to particular characteristics, the key element described together with particular implementation
Or step.Although it should also be understood that being described in the form of being related to a certain particular implementation, special characteristic, key element or step can
Exchange or combine with alternative embodiment with a variety of unaccounted combinations or arrangement mode.
It will also be appreciated that terms used herein "the", "one" or " one kind " expression " at least one (one kind) ", should
" only one (one kind) " is limited as, unless clearly there is opposite explanation.Thus, for example, mentioning " light source " includes having two
The example of individual or more this light source, unless the context clearly indicates otherwise.Similarly, " multiple (kinds) " is intended to indicate that
" more than one (kind) ".Therefore, " multiple defect lines " includes two or more such defect lines, such as three or more
Such defect line etc..
Herein, scope can be expressed as since " about " occurrence and/or terminate to " about " another occurrence.
When stating this scope, example includes beginning from a certain occurrence and/or extremely another occurrence stops.Similarly, when using leading
When word " about " expression numerical value is approximation, it should be appreciated that on the other hand concrete numerical value is formed.It will also be appreciated that each scope
Endpoint value be combined with another endpoint value and independently of another endpoint value in the case of it is all meaningful.
Term " almost " used herein, " substantially " and their variant be intended to indicate that described feature be equal to or
It is approximately equal to a numerical value or description.For example, the surface of " substantially in plane " is intended to indicate that in plane or substantially in plane
Surface.
Unless otherwise stated, otherwise all it is not intended to and any means as described herein is interpreted as needing to make its step with specific
Order is carried out.Therefore, when claim to a method is practically without being set fourth as that its step follows certain order or it does not exist
Specifically represent that step is limited to specific order with any other modes in claims or specification, be all not intended to imply that this
Meaning particular order.
Although various features, element or the step of particular implementation can be disclosed with Transitional Language "comprising", should manage
Solution, which imply including can use Transitional Language " by ... forms " or " substantially by ... form " describe including replacement
Embodiment.Thus, for example the alternative embodiment in secret of the method comprising A+B+C includes what method was made up of A+B+C
The embodiment that embodiment and method are substantially made up of A+B+C.
It will be apparent for a person skilled in the art that can be right in the case of without departing from the scope of the present disclosure and spirit
The disclosure carries out various modifications and changes.Because what those skilled in the art was contemplated that the embodiment has merged this public affairs
Open various improved combinations, subitem combination and the change of spirit and essence, it is considered that the disclosure includes scope
Interior full content and its equivalents.
Claims (33)
1. a kind of glassware, it is included：
First surface, opposite second surface and the thickness extended between them；And
At least one side, the side include about 35% laser ablation that thickness is less than or equal to the glassware thickness
Region.
2. glassware as claimed in claim 1, it is characterised in that the thickness of the laser ablated region is that the product is thick
About the 20% or smaller of degree.
3. glassware as claimed in claim 1 or 2, it is characterised in that the light incident surface of the laser ablated region
Scattering parameter is less than about 0.2.
4. such as glassware according to any one of claims 1 to 3, it is characterised in that also comprising non-laser ablated area, institute
State non-laser ablated area and include the light incident surface that scattering parameter is less than about 0.1.
5. such as glassware according to any one of claims 1 to 4, it is characterised in that the thickness of the glassware is about
In the range of 0.3mm~about 3mm.
6. such as glassware according to any one of claims 1 to 5, it is characterised in that the glassware is light guide plate.
7. a kind of display device, it includes glassware according to any one of claims 1 to 6.
8. display device as claimed in claim 7, it is characterised in that be also coupled to the glass comprising light source, the light source light
At least one side of glass product.
9. display device as claimed in claim 8, it is characterised in that the light source is light emitting diode.
10. display device as claimed in claim 8, it is characterised in that the light source is positioned at first and second described surface
Between, or the edge of the light source aligns with described first or second surface.
11. display device as claimed in claim 8, it is characterised in that the light source is in the position of neighbouring non-laser ablated area
Put at least one side of the place coupled to the glassware.
12. display device as claimed in claim 7, it is characterised in that also determine comprising at least one reflector, the reflector
On the first surface of the glassware, it is positioned on the second surface of the glassware or determines simultaneously
On first and second surface of the glassware.
13. a kind of glassware, it is included：
First surface, opposite second surface and the thickness extended between them；And
At least one side, the side, which includes, adjoins the inclined-plane of described first or second surface, the inclined-plane have be less than or
Equal to about 15% height of the glassware thickness.
14. glassware as claimed in claim 13, it is characterised in that the inclined-plane is laser cutting inclined-plane.
15. the glassware as described in claim 13 or 14, it is characterised in that at least one side is only oblique comprising one
Face.
16. the glassware as any one of claim 13~15, it is characterised in that the light incident surface on the inclined-plane
Scattering parameter be less than about 0.1.
17. the glassware as any one of claim 13~16, it is characterised in that also comprising non-inclined-plane region,
The non-inclined-plane region includes the light incident surface that scattering parameter is less than about 0.1.
18. glassware as claimed in claim 17, it is characterised in that the non-inclined-plane region includes distortion plumage line figure
Case, the distortion plumage line pattern extend through at least a portion of the glassware thickness.
19. glassware as claimed in claim 17, it is characterised in that the non-inclined-plane region does not include distortion plumage line figure
Case.
20. the glassware as any one of claim 13~16, it is characterised in that the thickness of the glassware exists
In the range of about 0.3mm~about 3mm.
21. the glassware as any one of claim 13~16, it is characterised in that the glassware is leaded light
Plate.
22. a kind of display device, it includes the glassware any one of claim 13~21.
23. display device as claimed in claim 22, it is characterised in that also comprising light source, the light source light is coupled to described
At least one side of glassware.
24. display device as claimed in claim 23, it is characterised in that the light source is light emitting diode.
25. display device as claimed in claim 23, it is characterised in that the laser cutting inclined-plane adjoins first table
Face, and the edge of the light source aligns with the second surface.
26. display device as claimed in claim 22, it is characterised in that also comprising at least one reflector, the reflector
It is positioned on the first surface of the glassware, is positioned on the second surface of the glassware or simultaneously
It is positioned on first and second surface of the glassware.
27. a kind of method for manufacturing glassware, methods described include：
Glass plate is provided, the glass plate has first surface, opposite second surface and the thickness extended between them；
The glass plate is set to be contacted on the first surface along predefined paths with laser, to form defect line；And
The glass plate is set to be separated into two or more parts along the defect line, to be formed comprising at least one side
Glassware, the side include about 35% laser ablated region that thickness is less than or equal to the sheet thickness.
28. method as claimed in claim 27, it is characterised in that the laser is selected from ultra-short pulse laser.
29. the method as described in claim 27 or 28, it is characterised in that form the defect line and be included in the glass plate
Produce depth and be less than or equal to about 35% laser ablated holes of the sheet thickness, and be optionally formed along substantially vertical
Straight direction extends to the defect line of the second surface from the first surface of the glass plate.
30. the method as any one of claim 27~29, it is characterised in that make the glass plate be separated into two or
More are partly comprised on the defect line or are applied around mechanical stress or thermal stress.
31. a kind of method for manufacturing glassware, methods described include：
Glass plate is provided, the glass plate has first surface, opposite second surface and the thickness extended between them；
The glass plate is set to be contacted on the first surface along predefined paths with laser, to form groove；And
Glass plate is set to be separated into two or more parts along the groove, to form the glass system for including at least one side
Product, the side include about 15% inclined-plane that height is less than or equal to the sheet thickness.
32. method as claimed in claim 31, it is characterised in that the laser is selected from CO2Laser, UV laser and more than
The infrared laser operated under about 3 micron wave lengths.
33. method as claimed in claim 31, it is characterised in that make the glass plate be separated into two or more parts bag
Include on the groove or be applied around mechanical stress or thermal stress.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562162373P | 2015-05-15 | 2015-05-15 | |
| US62/162,373 | 2015-05-15 | ||
| PCT/US2016/031961 WO2016186936A1 (en) | 2015-05-15 | 2016-05-12 | Glass articles with laser cut edges and methods for making the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107635935A true CN107635935A (en) | 2018-01-26 |
Family
ID=56134560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680028144.5A Withdrawn CN107635935A (en) | 2015-05-15 | 2016-05-12 | Glassware and its manufacture method with laser cut edges |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2018521941A (en) |
| KR (1) | KR20180008675A (en) |
| CN (1) | CN107635935A (en) |
| TW (1) | TW201707849A (en) |
| WO (1) | WO2016186936A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319375A (en) * | 2018-03-30 | 2019-10-11 | 松下知识产权经营株式会社 | Lighting device |
| WO2019218155A1 (en) * | 2018-05-15 | 2019-11-21 | Schott Glass Technologies (Suzhou) Co. Ltd. | Ultrathin glass with special chamfer shape and high strength |
| CN112802396A (en) * | 2019-11-14 | 2021-05-14 | 三星显示有限公司 | Foldable glass substrate and foldable display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102446538B1 (en) * | 2017-08-16 | 2022-09-26 | 삼성디스플레이 주식회사 | Backlight unit, display device and manufacturing method of display device |
| WO2019160711A1 (en) * | 2018-02-13 | 2019-08-22 | Corning Incorporated | Apparatus and methods for processing a substrate |
| KR102625796B1 (en) * | 2018-03-22 | 2024-01-16 | 코닝 인코포레이티드 | A method of inspecting a glass sheet, a method of manufacturing a glass sheet and a glass manufacturing apparatus |
| DE102020134198A1 (en) | 2020-12-18 | 2022-06-23 | Trumpf Laser- Und Systemtechnik Gmbh | Device and method for separating a material |
| DE102020134197A1 (en) | 2020-12-18 | 2022-06-23 | Trumpf Laser- Und Systemtechnik Gmbh | Device and method for separating a material |
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- 2016-05-12 CN CN201680028144.5A patent/CN107635935A/en not_active Withdrawn
- 2016-05-12 KR KR1020177036146A patent/KR20180008675A/en unknown
- 2016-05-12 WO PCT/US2016/031961 patent/WO2016186936A1/en active Application Filing
- 2016-05-12 JP JP2017559524A patent/JP2018521941A/en not_active Abandoned
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| CN112802396B (en) * | 2019-11-14 | 2024-04-23 | 三星显示有限公司 | Foldable glass substrate and foldable display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016186936A1 (en) | 2016-11-24 |
| JP2018521941A (en) | 2018-08-09 |
| TW201707849A (en) | 2017-03-01 |
| KR20180008675A (en) | 2018-01-24 |
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