CN206338646U - Glass component and glass - Google Patents
Glass component and glass Download PDFInfo
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- CN206338646U CN206338646U CN201690000186.3U CN201690000186U CN206338646U CN 206338646 U CN206338646 U CN 206338646U CN 201690000186 U CN201690000186 U CN 201690000186U CN 206338646 U CN206338646 U CN 206338646U
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- face
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- guide plate
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Abstract
The utility model is related to the glass that glass component and the glass component are used, and the glass component has glass (5) and reflector plate (6), wherein, the glass has：First face (51)；Second face (52) relative with first face；It is arranged at least one first end face (53) between first face and second face；And it is arranged at least one second end faces (54 between first face and second face and different with the first end face, 56), the effective optical path length of the glass is 5~200cm, the average internal transmissivity of visible domain in the effective optical path length of the glass is more than 80%, the surface roughness Ra of the second end face is less than 0.8 μm, and the reflector plate is configured with the second end face.Glass component of the present utility model improves adherence of the reflector plate to non-light inputting end face.
Description
Technical field
The utility model is related to glass component and glass.
Background technology
In recent years, it is provided with liquid crystal in portable information terminal using LCD TV, tablet terminal or smart mobile phone as representative etc.
Display device.Liquid crystal display device has the sheet light emitting apparatus as backlight and the light-emitting surface side in the sheet light emitting apparatus
The liquid crystal panel of configuration.
There is underface type and edge-illumination type in sheet light emitting apparatus, but many uses can realize the miniaturization of light source
Edge-illumination type.The sheet light emitting apparatus of edge-illumination type has light source, light guide plate, reflector plate and diffusion sheet etc..
Light from light source is from light inputting end on the side of light guide plate is formed towards incident in light guide plate.Light guide plate with
The face of the opposite side of the relative light-emitting face of liquid crystal panel is that multiple pips are formed with light reflection surface.Reflector plate is with anti-with light
Penetrate the relative mode in face to configure, diffusion sheet is configured in the mode relative with light-emitting face.
From light source to light guide plate, incident light is reflected and advanced by pip and reflector plate, from light-emitting face outgoing.From this
The light of light-emitting face outgoing is incident to liquid crystal panel on the basis of being spread from diffusion sheet.
As the material of the light guide plate, transmissivity can be used high and excellent heat resistance glass (with reference to patent document 1 and
2)。
Citation
Patent document
Patent document 1：Japanese Laid-Open 2013-093195 publications
Patent document 2：Japanese Laid-Open 2013-030279 publications
Utility model content
The utility model problem to be solved
Above-mentioned reflector plate be also disposed in beyond the light inputting end face of the glass used as light guide plate side (it is non-enter light
End face).Thus, after the light from light source is incident from light inputting end face, the outgoing from non-light inputting end face is suppressed, so that light is from light
Exit facet effectively outgoing.
The exemplary first purpose of a mode of the present utility model be provide one kind improve reflector plate to it is non-enter light
The glass that the glass component of the adherence of end face and the glass component are used.
Scheme for solving problem
In order to realize above-mentioned purpose, the utility model provides a kind of glass component, with glass and reflector plate, wherein,
The glass has：
First face；
Second face relative with first face；
It is arranged at least one first end face between first face and second face；And
It is arranged at least one second ends between first face and second face and different with the first end face
Face,
The effective optical path length of the glass is 5~200cm,
The average internal transmissivity of visible domain in the effective optical path length of the glass is more than 80%,
The surface roughness Ra of the second end face is less than 0.8 μm,
The reflector plate is configured with the second end face.
In addition, the utility model also provides a kind of glass component, the glass has：
First face；
Second face relative with first face；
It is arranged at least one first end face between first face and second face；And
It is arranged at least one second ends between first face and second face and different with the first end face
Face,
Wherein,
The effective optical path length of the glass is 5~200cm,
The average internal transmissivity of visible domain in the effective optical path length of the glass is more than 80%,
The surface roughness Ra of the second end face is less than 0.8 μm.
Utility model effect
According to a mode of the present utility model there is provided a kind of reflector plate that improves to the glass of the adherence in non-light inputting end face
Component, is prevented from the decline of brightness when using the glass component as light guide plate.
Brief description of the drawings
Fig. 1 is to represent to use the glass component of an embodiment as the schematic configuration of the liquid crystal display device of light guide plate
Figure.
Fig. 2 is the figure for the light reflection surface for representing light guide plate.
Fig. 3 is the stereogram of light guide plate.
Fig. 4 is the figure of the chamfering for illustrating to be formed on light guide plate.
Fig. 5 is the process chart of the manufacture method of the glass component of an embodiment.
Fig. 6 is the figure for illustrating the cut-out structure of the manufacture method of the glass component of an embodiment.
Fig. 7 is the figure for illustrating mirror finish process.
Fig. 8 (a)~Fig. 8 (b) is for illustrating the surface roughness Ra of the sample of example 1~6 and the relation of transmission rate variance
Figure.
Fig. 9 is the figure for illustrating the surface roughness Ra of the sample of example 7~14 and adhesion strength P relation.
Figure 10 is the figure for illustrating the surface roughness Ra of the sample of example 15~22 and adhesion strength P relation.
Embodiment
Next, referring to the drawings, illustrating that of the present utility model is not limited embodiment illustrated.
It should be noted that in record in whole accompanying drawings, for identical or corresponding component or components marking it is identical or
Corresponding reference numeral, the repetitive description thereof will be omitted.Moreover, accompanying drawing is as long as no specifying, component or part are just not representing
Between the purpose compared.Therefore, it is not limited embodiment and by this area that specific size, which can be compareed following,
Technical staff determines.
In addition, embodiments described below does not limit utility model but illustrated, it is whole that embodiment is described
Feature or its combination are not necessarily essential feature or its combination of utility model.
Fig. 1 has been shown with the liquid crystal display device 1 of the glass component of an embodiment of the present utility model.Liquid crystal display
Device 1 is equipped on realizes the electronic equipment of small-sized/slimming such as portable information terminal.
Liquid crystal display device 1 has liquid crystal panel 2 and sheet light emitting apparatus 3.
Liquid crystal panel 2 be laminated in the way of clamping and being configured at the liquid crystal layer at center oriented layer, transparency electrode, glass substrate and
Polarizing filter.Moreover, the one side in liquid crystal layer configures colour filter.Make liquid crystal layer by applying driving voltage to transparency electrode
Molecule rotated around with optical axis, thus carry out as defined in show.
Sheet light emitting apparatus 3 uses edge-illumination type to realize miniaturization and slimming.Sheet light emitting apparatus 3 has
Light source 4, light guide plate 5, reflector plate 6, diffusion sheet 7 and pip 10A~10C.
Reflected and advanced by pip 10A~10C and reflector plate 6 from light source 4 to the incident light of light guide plate 5, from light guide plate 5
Light-emitting face 51 outgoing relative with liquid crystal panel 2.The backward liquid spread from the light of the outgoing of light-emitting face 51 by diffusion sheet 7
Crystal panel 2 is incident.
Light source 4 is not particularly limited, but can use thermionic-cathode tube, cold-cathode tube or LED (Light Emitting
Diode：Light emitting diode).The light source 4 is configured in the mode relative with the light inputting end face 53 of light guide plate 5.
In addition, the incident efficiency to light guide plate 5 in order to improve the light radially launched from light source 4, in light source 4
Rear side sets reflector 8.
Surface coating of the reflector plate 6 as the resin sheet in acrylic resin etc. has the structure of light reflecting member.The reflection
Piece 6 configures the light reflection surface 52 and non-light inputting end face 54~56 in light guide plate 5.Light reflection surface 52 is the light outgoing with light guide plate 5
The relative face in face 51.Non- light inputting end face 54~56 is the face in addition to light inputting end face 53 in the end face of light guide plate 5.
Glass component has a light guide plate 5 and reflector plate 6, reflector plate 6 at least configure it is relative with light inputting end face 53 it is non-enter
Light end face 56.Thus, the light incident from light inputting end face 53 is reflected in the inside of light guide plate 5 and towards the direction of advance (court of light
Right direction into Fig. 1 and Fig. 2) advance, in the case where reaching non-light inputting end face 56, the guide again of reflector plate 6 can be utilized
The internal reflection of tabula rasa 5.Moreover, reflector plate 6 is more preferably also configured at non-light inputting end face 54,55.Thus, in light guide plate 5
, can be using reflector plate 6 again to the internal reflection of light guide plate 5 in the case that the light of portion's scattering reaches non-light inputting end face 54,55.
The material for constituting the resin sheet of reflector plate 6 is not defined to acrylic resin, can use and gather such as PET resin
Ester resin, polyurethane resin and the material that combines them etc..
As the light reflecting member for constituting reflector plate 6, it can use such as metal deposition film.
Sticker is provided with the reflector plate 6 for being configured at non-light inputting end face 54~56.As the sticker located at reflector plate 6,
It can use such as acrylic resin, silicones, polyurethane resin, synthetic rubber.Reflector plate 6 is configured at via sticker
Non- light inputting end face 54~56.
The thickness of reflector plate 6 is not particularly limited, but can use such as 0.01~0.50mm thickness.
Diffusion sheet 7 can use milky acrylic resin film etc..Diffusion sheet 7 makes the light-emitting face from light guide plate 5
The light diffusion of 51 outgoing, therefore, it is possible to irradiate the uniform light of no brightness disproportionation to the rear side of liquid crystal panel 2.Need explanation
, reflector plate 6 and diffusion sheet 7 are fixed on the assigned position of light guide plate 5 for example, by adhesion.
Next, being illustrated to light guide plate 5.
Light guide plate 5 is made up of the high glass of transparency.In the present embodiment, as the glass used as light guide plate 5
Material, uses the oxide glass of multicomponent system.
Specifically, as light guide plate 5, using effective optical path length be 5~200cm, in effective optical path length can
The average internal transmissivity for seeing area of light (wavelength 380nm~800nm) is more than 80% glass.The visible domain of glass is averaged
Internal transmission rate preferably in effective optical path length be more than 82%, more preferably more than 85%, more preferably 90% with
On.It should be noted that the effective optical path length of glass refer to as light guide plate in use, carrying out the light inputting end into light from light
The distance in the non-light inputting end face of face to opposite side, equivalent to the length of the horizontal direction of the situation of the light guide plate 5 shown in Fig. 1.And
And, the average internal transmissivity T of the visible domain of glassaveIt can be calculated by evaluation method described later.
In addition, in the effective optical path length of the glass used as light guide plate 5 according to JIS Z8701's (attached book)
The Y value of the tristimulus values of XYZ color specification systems is preferably more than 90%.Y value is obtained by Y=Σ (S (λ) × y (λ)).Here, S (λ)
It is the transmissivity of each wavelength, y (λ) is the weight coefficient of each wavelength.Therefore, Σ (S (λ) × y (λ)) is the weighting for obtaining each wavelength
The value of the summation for the value that coefficient is multiplied with its transmissivity.It should be noted that the M cones that y (λ) corresponds in the retinulae of eye
(G cones/green), also the reaction to wavelength 535nm light is maximum.Y value is more preferably more than 91% in effective optical path length, enters
One step is preferably more than 92%, and particularly preferably more than 93%.
(measure of the average internal transmissivity of the visible domain of glass)
Illustrate the internal transmission rate T of the visible domain of glassinAnd average internal transmissivity TaveEvaluation method.
First, from the substantial middle part of the glass plate as object, in the side vertical with the first of glass plate the main surface
Cut off upwards, thus choose the sample A of the size to vertical 50mm × horizontal 50mm.Next, confirming sample A each other
First and second relative arithmetic average roughness Ra for cutting off face turns into less than 0.03 μm of situation.If arithmetic mean roughness
Spend Ra to be more than in the case of 0.03 μm, then first and second face of cutting off is entered using the free abrasive of colloidal silica or cerium oxide
Row grinding.Next, in sample A, face is cut off for first, first cut off at this in the normal direction in face, determine 50mm
The transmissivity T of the scope of wavelength 400nm~800nm at lengthA.In transmissivity TAMeasure in, use can carry out 50mm length
The spectroscopic measurement device of measure at degree is (for example, UH4150：High and new technology company of Hitachi system), using slit etc., make incident light
Beam width be measured than thickness of slab constriction.
Next, using V-block method, precision refractometer determination sample A g lines (435.8nm), F lines at room temperature are utilized
(486.1nm), e lines (546.1nm), d lines (587.6nm), the refractive index of each wavelength of C lines (656.3nm).With with these value phases
Suitable mode determined using least square method Sellmeier each coefficient B 1 of distributing (following formula (1)), B2, B3,
C1, C2, C3, thus obtain sample A refractive index nA：
nA=[1+ { B1λ2/(λ2-C1)}+{B2λ2/(λ2-C2)}+{B3λ2/(λ2-C3)}]0.5 (1)
It should be noted that in formula (1), λ is wavelength.
The sample A first and second reflectivity R for cutting off faceAObtained by following theoretical formula (formula (2))：
RA=(1-nA)2/(1+nA)2 (2)
Next, using following formula (3), the transmissivity T from sample A 50mm lengthAThe influence of reflection is excluded, by
This obtain sample A away from this first cut off face be normal direction 50mm length on internal transmission rate Tin：
Tin=[- (1-RA)2+{(1-RA)4+4TA 2RA 2}0.5]/(2TARA 2) (3)
By the internal transmission rate T obtained under each wavelengthinAveraged determining wavelength domain, thus calculate the flat of glass plate
Equal internal transmission rate Tave。
From the average internal transmissivity and Y value aspect that above-mentioned visible domain is met in effective optical path length,
The total amount A of the content of the iron of the glass used as light guide plate 5 is preferably below 150ppm, and more preferably below 80ppm enters
One step is preferably below 50ppm.On the other hand, from the melting that glass is improved during the oxide glass manufacture in multicomponent system
Aspect is set out, and the total amount A of the content of the iron of the glass used as light guide plate 5 is preferably more than 5ppm, more preferably 10ppm
More than, more preferably more than 20ppm.It should be noted that the content of the iron of the glass used as light guide plate 5 is total
Amount A can be adjusted by the amount of the iron added in glass manufacture.
In this manual, the total amount A of the content of the iron of glass is denoted as Fe2O3Content, but exist in glass
Iron and not all be used as Fe3+(iron of trivalent) and exist.Generally, there is Fe simultaneously in glass3+And Fe2+(iron of divalent).
Fe2+And Fe3+Absorbed although existing in visible domain, Fe2+Absorption coefficient (11cm-1Mol-1) compare Fe3+Absorption coefficient
(0.96cm-1Mol-1) big 1, therefore the internal transmission rate of visible domain is further declined.Therefore, from raising visible domain
Internal transmission rate in terms of set out, preferably Fe2+Content it is few.
The glass used as light guide plate 5 is by making the Fe of the glass2+Content meet condition described later, can suppress
The absorption of light under wavelength 600nm~780nm, even if effective optical path is long according to the size of display as edge-illumination type
It can be also efficiently used in the case of degree change.
Effective optical path length is being set to L (cm), by Fe2+Content be set to B (ppm be converted into Fe2O3Value) when, make
The preferred relation for meeting 2.5 (cmppm)≤L × B≤3000 (cmppm) of glass used for light guide plate 5.If L × B<
2.5 (cmppm), then what the sheet light emitting apparatus of size of the effective optical path length as 25~200cm was used is used as leaded light
The Fe of the glass of plate 52+Content B turn into 0.05~0.1ppm, the lower a large amount of productions of low cost become difficulty.If L × B>3000
(cmppm), then it is used as the Fe of the glass of light guide plate 52+Content increase, therefore the suction of the light at wavelength 600nm~780nm
Receipts increase, it is seen that the internal transmission rate of area of light declines, and possibly above-mentioned visible domain can not be met in effective optical path length
Average internal transmissivity and Y value.Moreover, the glass for being used as light guide plate 5 more preferably meets 10 (cmppm)≤L × B≤2400
(cmppm) relation, further preferably meets the relation of 25 (cmppm)≤L × B≤1850 (cmppm).
From the average internal transmissivity and Y value aspect that above-mentioned visible domain is met in effective optical path length,
It is used as the Fe of the glass of light guide plate 52+Content B be preferably below 30ppm, more preferably below 20ppm, more preferably
Below 10ppm.The melting aspect of glass is improved when on the other hand, from the oxide glass manufacture in multicomponent system,
It is used as the Fe of the glass of light guide plate 52+Content B be preferably more than 0.02ppm, more preferably more than 0.05ppm, further it is excellent
Elect more than 0.1ppm as.
It should be noted that being used as the Fe of the glass of light guide plate 52+Content can utilize what is added in glass manufacture
The amount of oxidant is adjusted.The specific species of oxidant on being added in glass manufacture exists with their addition
Describe hereinafter.Fe2O3Content A obtained using fluorescent X-ray measure, be to be converted into Fe2O3Whole iron content (quality
ppm)。Fe2+Content B determined in accordance with ASTM C169-92.It should be noted that the Fe determined2+Content be converted into Fe2O3
It is marked.
From the average internal transmissivity and Y value aspect that above-mentioned visible domain is met in effective optical path length,
The content that the oxide glass for being used as the multicomponent system of light guide plate 5 preferably has the composition absorbed in visible domain is low.As
There is the composition absorbed in visible domain, for example, there are MnO2、TiO2、NiO、CoO、V2O5, CuO and Cr2O3.From in effective light
Set out in terms of average internal transmissivity and Y value that above-mentioned visible domain is met in the length of road, be used as the glass of light guide plate 5
Mentioned component (be selected from by MnO2、TiO2、NiO、CoO、V2O5, CuO and Cr2O3It is at least one kind of in the group of composition) total contain
Amount by the quality percentage of oxide benchmark show in terms of preferably less than 0.1% (below 1000ppm).More preferably 0.08% with
Under (below 800ppm), more preferably less than 0.05% (below 500ppm).
It is used as the specific example of composition of the glass of light guide plate 5 as shown below.But, it is used as the glass of light guide plate 5
The composition of glass is not limited to this.
It is used as the composition of the glass of this in addition to iron of a configuration example (configuration example A) of the glass of light guide plate 5 with oxygen
The quality percentage display of compound benchmark is counted and includes SiO2：60~80%, Al2O3：0~7%, MgO：0~10%, CaO：4~
20%, Na2O：7~20%, K2O：0~10%.
Be used as another configuration example (configuration example B) of the glass of light guide plate 5 the glass of this in addition to iron composition with
The quality percentage display of oxide benchmark is counted and includes SiO2：45~80%, Al2O3：More than 7% and less than 30%, B2O3：0
~15%, MgO：0~15%, CaO：0~6%, Na2O：7~20%, K2O：0~10%, ZrO2：0~10%.
Be used as another configuration example (configuration example C) of the glass of light guide plate 5 the glass of this in addition to iron composition with
The quality percentage display of oxide benchmark is counted and includes SiO2：45~70%, Al2O3：10~30%, B2O3：0~15%, choosing
It is at least one kind of in the group that free MgO, CaO, SrO and BaO are constituted：5~30%, selected from by Li2O、Na2O and K2In the group that O is constituted
It is at least one kind of：0% less than 7%.
However, the glass for being used as light guide plate 5 is not limited to this.
In addition to fig. 1, also as shown in Fig. 2~Fig. 5, the light guide plate 5 has light-emitting face 51 (the first face), light reflection surface
52 (the second faces), light inputting end face 53 (first end face), non-light inputting end face 54~56 (second end face), incident side fillet surface 57 (
One fillet surface) and non-light incidence side fillet surface 58 (the second fillet surface).
Light-emitting face 51 is the face relative with liquid crystal panel 2.In the present embodiment, state of the light-emitting face 51 in vertical view
It is rectangular shape under (state of light-emitting face 51 viewed from above).However, the shape of light-emitting face 51 is not limited to this.
The size of the light-emitting face 51 corresponds to liquid crystal panel 2 to determine, therefore is not particularly limited.In present embodiment
In, the size of light-emitting face 51 is set to such as 1200mm × 700mm.
Light reflection surface 52 is the face relative with light-emitting face 51.Light reflection surface 52 is configured to parallel with light-emitting face 51.And
And, the shape of light reflection surface 52 and it is sized and configured to identical with light-emitting face 51.
However, light reflection surface 52 may not have to be parallel or provided with difference of height or inclination relative to light-emitting face 51
Structure.Moreover, the size of light reflection surface 52 can also be set to the size different from light-emitting face 51.
As shown in Fig. 2 being formed with pip 10A~10C in light reflection surface 52.Pip 10A~10C is by white ink
The structure that liquid prints in point-like.Brightness from the incident light in light inputting end face 53 is strong, advances in the internal reflection of light guide plate 5, thus
Brightness declines.
Therefore, in the present embodiment, from light inputting end face 53 towards the direction of advance (right towards in Fig. 1 and Fig. 2 of light
To), make that pip 10A~10C's is of different sizes.Specifically, close to light inputting end face 53 region pip 10A diameter
(LA) be set to it is small, with from there towards light direction of advance and pip 10B diameter (LB), pip 10C diameter
Radius (LC) it is set to big (LA<LB<LC)。
So, changed by making each pip 10A size towards the direction of advance of the light in light guide plate 5, can realized
From the homogenization of the brightness of the emergent light of the outgoing of light-emitting face 51, the generation of brightness disproportionation can be suppressed.It should be noted that taking
Become for each pip 10A size by making each pip 10A number density towards the direction of advance of the light in light guide plate 5
Change, can also obtain equal effect.Moreover, replacing pip 10A and making the light of incidence by being formed on light reflection surface 52
The groove of reflection, can also obtain equal effect.
In the present embodiment, 4 end faces are formed between light-emitting face 51 and light reflection surface 52.In 4 end faces, as
The light inputting end face 53 of first end face is the face that light enters light from described light source 4.It is used as the non-light inputting end face 54~56 of second end face
It is the face that light does not enter light from light source 4.
Non- light inputting end face 54~56 does not enter light due to the light from light source 4, thus its surface without as light inputting end face 53 that
Sample is accurately processed.The surface roughness Ra for making non-light inputting end face 54~56 is less than 0.8 μm.Make non-light inputting end face 54~56
Surface roughness Ra for 0.8 μm the following is for it is following the reasons why.It should be noted that in the following description, recording
In the case of for surface roughness Ra, refer to the arithmetic average roughness (center line based on JIS 0601~JIS of B B 0031
Mean roughness).
As shown in figure 1, reflector plate 6 of being adhered in non-light inputting end face 54~56.Now, if the table in non-light inputting end face 54~56
Coarse states of the surface roughness Ra more than 0.8 μm, then reflector plate 6 can not suitably be adhered to non-light inputting end face 54~56.Phase
For this, if not the surface roughness Ra in light inputting end face 54~56 be less than 0.8 μm, then reflector plate 6 for non-light inputting end face
54~56 adherence becomes good.So, by preventing the peeling of reflector plate 6, it is possible to increase the reliability of sheet light emitting apparatus 3
Property.The surface roughness Ra in non-light inputting end face 54~56 is preferably less than 0.4 μm, more preferably less than 0.2 μm, further preferably
For less than 0.1 μm, particularly preferably less than 0.04 μm.
In addition, in the present embodiment, for non-light inputting end face 54~56 without grinding processing or milled processed.Cause
This, the surface roughness Ra in non-light inputting end face 54~56 be all set to it is bigger than the surface roughness Ra in light inputting end face 53, it is non-enter light
The surface roughness Ra of end face 54~56 is preferably more than 0.01 μm, more preferably more than 0.03 μm.Thus, with light inputting end face 53
Compare, the handling ease in non-light inputting end face 54~56 or need not process, productivity is improved.However, for non-light inputting end face
54~56 can also carry out grinding processing or milled processed, and the surface roughness Ra in non-light inputting end face 54~56 can also be with entering light
The surface roughness Ra of end face 53 is identical.That is, the surface roughness Ra in non-light inputting end face 54~56 is preferably light inputting end face 53
More than surface roughness Ra, the surface roughness Ra in non-light inputting end face 54~56 is more preferably greater than the rough surface in light inputting end face 53
Spend Ra.
In addition, as shown in figure 4, by the width dimensions in non-light inputting end face 54~56 (that is, be arranged on the first face and the second face it
Between face in the part in addition to non-light incidence side fillet surface 58 described later thickness of slab direction size) when being set to L (mm), should
The average value L of width dimensions L fillet surface length direction (hereinafter simply referred to as length direction)avePreferably 0.25~9.8mm.
LaveMore preferably 0.50~9.8mm.If LaveFor below 9.8mm, then the width of non-light incidence side fillet surface 58 can be fully ensured
Spend size Y.If LaveFor more than 0.25mm, then it can reduce L described later error.
The width dimensions L in non-light inputting end face 54~56 can actually be produced with during cutting off processing or chamfering in the longitudinal direction
Processing during processing is not the error of cause.Being averaged on the width dimensions L in non-light inputting end face 54~56 length direction
It is worth for Lave(mm) in the case of, on L length direction relative to LaveError be preferably Lave50% within.That is, by L
Length direction on maximum be set to Lmax(mm) minimum value, is set to Lmin(mm) when, L is preferably metmax≤1.5×LaveAnd
Lmin≥0.5×Lave.The error is more preferably within 40%, within more preferably 30%, particularly preferably 20% with
It is interior.Thus, the width dimensions L in the non-light inputting end face 54~56 on length direction error diminishes, and is led therefore, it is possible to reduce to utilize
The brightness disproportionation that tabula rasa 5 occurs when light is reflected to reflector plate 6.
As described above, reflector plate 6 is configured in non-light inputting end face 54~56, but in non-light inputting end face 54~56 and reflector plate
6 interface can be produced with the bad space for cause of adhering.The per unit area of non-light inputting end face and the interface of reflector plate
The ratio (hereinafter simply referred to as Surface porosity) for the area that space is occupied is by properly selecting the table in non-light inputting end face 54~56
Sticker that surface roughness Ra, shape, reflector plate 6 are included etc. and can reduce.Non- light inputting end face 54~56 and reflector plate 6
The Surface porosity at interface is preferably less than 40%, more preferably less than 30%, more preferably less than 20%.Due to area
Voidage be less than 40%, it is thus possible to suppress using light guide plate 5 by light to reflector plate 6 reflect when using space for rise thus generation
Brightness decline.
Surface porosity can be calculated using method as shown below.First, determine to calculate Surface porosity it is non-enter
Light end face and the interface of reflector plate, reflector plate relative to non-light inputting end face peel adhesion P (N/10mm).Need explanation
, peel adhesion P (N/10mm) can by as defined in JIS Z 0237 peel adhesion experiment be measured.So
Afterwards, for the glass that same with non-light inputting end face glass composition and shape and surface roughness Ra are less than 0.0050 μm
The end face of glass, similarly determines peel adhesion P of the reflector plate relative to the end face0(N/10mm).If here, rough surface
Degree Ra is that less than 0.0050 μm of the Surface porosity of the end face is 0%, then the non-light inputting end face and the interface of reflector plate
Surface porosity V (%) can be calculated using following formula 1.
V=100 × (1-P/P0) (formula 1)
Light inputting end face 53 is in the manufacture of the glass as light guide plate 5 preferably by carry out mirror finish.Specifically, light is entered
Arithmetic average roughness (center line average roughness) Ra on the surface of end face 53 is preferably less than 0.03 μm.Thus, it can improve
Enter the light efficiency of the light of light into light guide plate 5 from light source 4.The width dimensions W (reference picture 4) in light inputting end face 53 is set as from taking
Carry the width dimensions of the requirement of liquid crystal display device 1 of sheet light emitting apparatus 3.The surface roughness Ra in light inputting end face 53 is preferably
Less than 0.01 μm, more preferably less than 0.005 μm.
In the present embodiment, between light-emitting face 51 and light inputting end face 53 and light reflection surface 52 and light inputting end face 53
Between form incident side fillet surface 57.
It should be noted that in the present embodiment, show between light-emitting face 51 and light inputting end face 53, light reflection surface
This both sides is formed with the example of incident side fillet surface 57 between 52 and light inputting end face 53, but can also be only any square into entering
Light side fillet surface 57.
In the sheet light emitting apparatus 3 of miniaturization and slimming is required as in the present embodiment, the thickness of light guide plate 5
It is preferred that relatively thin.Therefore, the thickness t of the light guide plate 5 of present embodiment is preferably below 10mm.However, light guide plate 5 be not provided with into
Light side fillet surface 57 and in the case of structure with corner, when light guide plate 5 is assembled to sheet light emitting apparatus 3 etc., corner
It may contact and damage with other works, the intensity of light guide plate 5 can decline.Therefore, the thickness of the light guide plate 5 of present embodiment
It is preferably more than 0.5mm to spend t, moreover, upper limb and lower edge formation the incident side fillet surface 57 in light inputting end face 53.
In order to improve the light efficiency of the light from light source 4 into light guide plate 5, it is necessary to expand the area in light inputting end face 53.Cause
This, incident side fillet surface 57 is preferably smaller, therefore in the present embodiment, carries out chamfer machining and be used as incident side fillet surface
57。
If here, as shown in figure 4, the width dimensions of incident side fillet surface 57 (fillet surface) are set into X (mm), the width
Average value X on size X fillet surface length direction (hereinafter simply referred to as length direction)avePreferably 0.01mm~0.5mm, enters
One step is preferably 0.05mm~0.5mm, particularly preferably 0.1mm~0.5mm.If XaveFor below 0.5mm, then can increase into
The width dimensions W of light end face 53.If XaveFor more than 0.1mm, then it can reduce X described later error.If XaveFor 0.01mm with
On, then it can suppress the breakage using fillet surface as starting point, it is possible to increase treatability.
The width dimensions X of incident side fillet surface 57 can be actually produced with processing during chamfer machining not in the longitudinal direction
It is the error of cause.Average value on the width dimensions X of incident side fillet surface 57 length direction is Xave(mm) situation
Under, the error on X length direction is preferably Xave50% within.That is, X preferably meets 0.5Xave≤X≤1.5Xave.It is described
Error is more preferably within 40%, within more preferably 30%, within particularly preferably 20%.Thus, on length direction
Incident side fillet surface 57 width dimensions X and light inputting end face 53 width dimensions W error reduce, led therefore, it is possible to reduce
The brightness disproportionation that tabula rasa 5 is produced.
In addition, the surface roughness Ra of incident side fillet surface 57 is preferably less than 0.4 μm.By making incident side fillet surface 57
Surface roughness Ra be less than 0.4 μm, cullet yield can be suppressed, the generation reduction of the brightness disproportionation of light guide plate 5.Enter
The width dimensions X of light side fillet surface 57 is bigger, and cullet yield also more increases, therefore the rough surface of incident side fillet surface 57
Degree Ra is more preferably less than 0.3 μm, particularly preferably more preferably less than 0.1 μm, less than 0.03 μm.
In addition, in the present embodiment, as shown in figure 3, between light-emitting face 51 and non-light inputting end face 54, light reflection surface
Between 52 and non-light inputting end face 54, between light-emitting face 51 and non-light inputting end face 55, light reflection surface 52 and non-light inputting end face 55 it
Between, be completely formed between light-emitting face 51 and non-light inputting end face 56, between light reflection surface 52 and non-light inputting end face 56 it is non-enter light
Side fillet surface 58.However, non-light incidence side fillet surface 58 may not have to be completely formed in above-mentioned, it can also be formed selectively non-
Incident side fillet surface 58.
Here, as shown in figure 4, when the width dimensions of non-light incidence side fillet surface 58 are set into Y (mm), width dimensions Y's
Average value Y on length directionavePreferably 0.1~0.6 (mm).If YaveFor below 0.6mm, then it can increase non-light inputting end face
54~56 width dimensions L.If YaveFor more than 0.1mm, then it can reduce Y described later error.
The width dimensions Y of non-light incidence side fillet surface 58 can be produced in the longitudinal direction not to be with processing during chamfer machining
The error of cause.Average value on Y length direction is Yave(mm) in the case of, the error on Y length direction is preferably
Yave50% within.That is, Y preferably meets 0.5Yave≤Y≤1.5Yave.The error is more preferably within 40%, further excellent
Elect as within 30%, within particularly preferably 20%.Thus, on the length direction in the non-light inputting end face 54~56 of incident light reflection
Width dimensions L error reduce, therefore, it is possible to reduce light guide plate 5 produce brightness disproportionation.
In addition, from the viewpoint of productivity raising, the surface roughness Ra of non-light incidence side fillet surface 58 is more than incident side
The surface roughness Ra of fillet surface 57, preferably more than 0.03 μm, more preferably more than 0.1 μm, more preferably 0.3 μm with
On, particularly preferably more than 0.4 μm.Moreover, the surface roughness Ra of non-light incidence side fillet surface 58 is preferably less than 1.0 μm.This
Outside, the surface roughness Ra of non-light incidence side fillet surface 58 is more than 0.4 μm and less than 1.0 μm, is thus adhered in reflector plate 6 non-
In the case of incident side fillet surface 58, adherence between the two becomes good.Moreover, can reduce in the bright of the generation of light guide plate 5
Degree is uneven.
Next, the manufacture method of glass of the explanation as light guide plate 5.
Fig. 5~Fig. 7 is the figure for illustrating the manufacture method of light guide plate 5.Fig. 5 is the manufacture method for representing light guide plate 5
Process chart.
In order to manufacture light guide plate 5, prepare frit 12 first.For the frit, as described above, effective optical path is long
Spend for 5~200cm, thickness is preferably that the average internal transmissivity of the visible domain in 0.5~10mm, effective optical path length is
The Y value of the tristimulus values of XYZ color specification systems in more than 80%, and JIS Z8701 (attached book) is preferably more than 90%.The glass
Raw material 12 is set to the shape bigger than the set shape of light guide plate 5.
Implement the cut off operation (in figure, step is referred to as S) shown in Fig. 5 step 10 first to frit 12.
In cut off operation, each position shown in the dotted line using topping machanism in Fig. 6 (the light inputting end surface side position at 1 position and 3
The non-light inputting end surface side position at position) carry out cutting off processing processing.It should be noted that cutting off processing processing can also need not be right
Carried out in the non-light inputting end surface side position at 3 positions, can also be only for relative with the light inputting end surface side position at 1 position 1
The non-light inputting end surface side position at individual position carries out cutting off processing.
By carrying out cutting off processing processing, glass baseplate 14 is cut off from frit 12.It should be noted that in this implementation
In mode, light guide plate 5 is rectangular shape under vertical view, therefore light inputting end surface side position for 1 position and 3 positions is non-
Light inputting end surface side position carries out cutting off processing processing.However, off-position is suitably selected according to the shape of light guide plate 5.
At the end of cutting off processing processing, implement the first chamfering process (step 12).In the first chamfering process, mill is used
Turning device, this both sides' shape between light-emitting face 51 and non-light inputting end face 56 and between light reflection surface 52 and non-light inputting end face 56
Into non-light incidence side fillet surface 58.
It should be noted that between light-emitting face 51 and non-light inputting end face 54, light reflection surface 52 and non-light inputting end face 54
Between, between light-emitting face 51 and non-light inputting end face 55 and the whole between light reflection surface 52 and non-light inputting end face 55 or appoint
In the case that one position forms non-light incidence side fillet surface 58, chamfer machining processing is carried out in first chamfering process.
, can also be between light-emitting face 51 and light inputting end face 53 or light reflects in addition, in first chamfering process
Chamfer machining is carried out between face 52 and light inputting end face 53.In this case, from the viewpoint of productivity, the chamfering preferably obtained
The surface roughness Ra in face is more than the surface roughness Ra of the incident side fillet surface 57 obtained in the second chamfering process described later.
In addition, in the present embodiment, in the first chamfering process, grinding processing is carried out for non-light inputting end face 54~56
Or milled processed.The grinding processing carried out for non-light inputting end face 54~56 or milled processed can formed it is foregoing it is non-enter light
Carry out, can also carry out simultaneously before or after side fillet surface 58.It should be noted that on non-light inputting end face 54,55,
The face for having carried out cutting off processing processing can directly be used and be used as non-light inputting end face 54,55.
First chamfering process (step 12) can also be with mirror finish process (step 14) described later and the second chamfering process
(step 16) while or after them carry out, it is preferred that carrying out before them.Thus, in step 12 can with than
Faster speed carries out processing corresponding with the shape of light guide plate 5, therefore productivity is improved, and the ratio produced in step 12
Larger cullet are difficult to damage light inputting end face 53, incident side fillet surface 57.
At the end of the first chamfering process (step 12), next implement mirror finish process (step 14).In the minute surface
In manufacturing procedure, as shown in fig. 7, carrying out mirror finish for the light inputting end surface side of glass baseplate 14 and forming light inputting end face 53.
As described above, light inputting end face 53 is the face that light enters light from light source 4.Thus, light inputting end face 53 by mirror finish into surface roughness
Ra is less than 0.03 μm.
In mirror finish process (step 14) at the formation light inputting end face 53 of glass baseplate 14, next implement second and fall
Angle process (step 16), from there through between light-emitting face 51 and light inputting end face 53 and light reflection surface 52 and light inputting end face 53
Between carry out grinding processing or milled processed and form incident side fillet surface 57 (fillet surface).It should be noted that step 16
It can carry out, can also simultaneously be carried out with step 14 before step 14.
In the second chamfering process, the average value on the width dimensions X of incident side fillet surface 57 length direction is set to
XaveWhen, X is preferably turned into the error on X length directionave50% within, and surface roughness Ra preferably turn into 0.4 μ
Below m mode is processed.
When forming the incident side fillet surface 57, emery wheel can be used as the work for carrying out grinding processing or milled processed
Tool, and in addition to emery wheel, the polishing wheel being made up of cloth, skin, rubber etc. or brush etc. can also be used.Moreover, now,
The grinding agent of cerium oxide, aluminum oxide, carborundum, colloidal silica etc. can be used.
Light guide plate 5 is manufactured by implementing each operation shown in step 10~16 of the above.It should be noted that in manufacture
Described pip 10A~10C is printed after light guide plate 5 for light reflection surface 52.
More than, describe preferred embodiment of the present utility model in detail, but the utility model be not defined to it is above-mentioned
Specific embodiment, claims record purport of the present utility model in the range of, can carry out various modifications/
Change.
Embodiment
Hereinafter, the utility model is specifically understood by embodiment etc., but the utility model is not by these examples
Limit.
In following experiment 1~3, as glass plate, shown by quality percentage in terms of, used comprising 71.6%
SiO2, 0.97% Al2O3, 3.6% MgO, 9.3% CaO, 13.9% Na2O, 0.05% K2O, 0.005%
Fe2O3Glass plate (vertical 50mm, horizontal 50mm, thickness of slab 2.5mm).The glass plate is in cut-out from the glass plate manufactured using float glass process
The glass plate (when cutting out, being cut to prevent from rupturing to the corner part of glass) cut out in manufacturing procedure.The glass
Glass has in 4 end faces, 4 end faces between light-emitting face and light reflection surface, and 1 end face is light inputting end face, 3 end face right and wrong
Light inputting end face.
After cutting off processing processing, the first chamfering process has been carried out.In the first chamfering process, for 3 it is non-enter light
End face has carried out grinding processing.In addition, using grinding attachment, between the light-emitting face and non-light inputting end face to the glass and light
Carried out between reflecting surface and non-light inputting end face, between light-emitting face and light inputting end face or light reflection surface and light inputting end face
Chamfer machining.
(experiment 1)
First, the experiment of the relation of the transmissivity for the Ra and light for studying non-light inputting end face has been carried out being used for.
The surface roughness Ra in the non-light inputting end face of the sample of example 1~6 is as shown in table 1 respectively.
【Table 1】
Table 1
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| Ra(μm) | 0.010 | 0.012 | 0.029 | 0.037 | 0.070 | 0.110 |
| Transmission rate variance (%) | 0.0185 | -0.0296 | 0.0462 | -0.0585 | -1.9109 | -4.3508 |
After the first chamfering process, mirror finish process has been carried out.In mirror finish process, enter for light inputting end face
Mirror finish is gone.The surface roughness Ra in the light inputting end face of the sample of obtained example 1~6 is all 0.01 μm.Then minute surface adds
Work process and carry out the second chamfering process, between light-emitting face and light inputting end face and between light reflection surface and light inputting end face
Grinding processing is carried out, incident side fillet surface is formd.
The transmissivity measure in non-light inputting end face has been carried out for the sample of example 1~6.The measure makes wavelength 400nm~800nm
Light it is incident from light inputting end surface side towards the non-light inputting end face relative with the light inputting end face, according to the measured value of above-mentioned transmissivity
And calculated average transmittance.Moreover, non-light inputting end face has been carried out into the ginseng of optical grinding for different from the sample of example 1~6
Product carry out same measure in the same old way, have calculated wavelength 400nm~800nm average transmittance.From the wavelength of the sample of example 1~6
400nm~800nm average transmittance is subtracted obtained by the wavelength 400nm~800nm average transmittance of the reference sample
Difference (following, to be also only called transmission rate variance) is represented in the lump in table 1.
In addition, shown in the surface roughness Ra of the sample of example 1~6 and relation such as Fig. 8 (a)~Fig. 8 (b) of transmission rate variance.
Fig. 8 (a), Fig. 8 (b) have been plotted as surface roughness Ra and transmission rate variance shown in table 1, only change the model for representing near linear
Enclose.
As shown in Fig. 8 (a)~Fig. 8 (b), if not the surface roughness Ra in light inputting end face is more than 0.04 μm, then transmission rate variance
It can not ignore.If not the surface roughness Ra in light inputting end face is more than 0.8 μm, then transmission rate variance is less than -50%, therefore is not through non-
Most of scattered reflections (diffusing reflection), the reason for declining as brightness at non-light inputting end face of the incident light in light inputting end face.
(experiment 2)
Next, having carried out the reality for studying the adhesion area in non-light inputting end face and reflector plate and the relation of adhesion strength
Test.First, preparing the reflector plate that bandwidth is respectively 6mm, 12mm, 24mm, (temple ridge makes made, product name：Shading polyester
Film adhesive tape, model：No.6370), it is arranged respectively on the glass surface that surface roughness Ra is 0.0044 μm.For these
Sample, has carried out 180 ° of peel adhesions experiment of adhesive tape/adhesive sheet as defined in JIS Z 0237.As testing machine, make
With desktop accurate universal testing machine (Shimadzu Seisakusho Ltd.'s system, model name：AGS-5kNX).The peel adhesion is tested for 1
Individual sample is carried out each 5 times, according to the adhesion strength determined and the product F (N) of bandwidth value, has calculated adhesion strength P (N/10mm)
Average value (following, be also only called adhesion strength).They are as shown in table 2.
【Table 2】
Table 2
| Bandwidth (mm) | 6.0 | 12.0 | 24.0 |
| The product F (N) of adhesion strength and bandwidth | 5.49 | 10.83 | 20.06 |
| Adhesion strength P (N/10mm) | 9.15 | 9.03 | 8.36 |
The area of reflector plate is proportional to bandwidth, it may thus be appreciated that the product F approximations of adhesion strength and bandwidth with reflection
The area of piece is proportional.Moreover, in the case of being provided with reflector plate for the glass surface of similar face roughness Ra, it is believed that
Non- light inputting end face is identical with the Surface porosity of the interface of reflector plate.Therefore, it is known that non-light inputting end face and reflector plate are actual viscous
The area (adhesion area) and above-mentioned F approximations it is proportional.Accordingly, for the sample with multiple surface roughness Ras,
Using identical material and reflector plate of the same area has carried out peel adhesion experiment, thus, it is possible to relatively calculate bonding plane
Product, Surface porosity.
Surface porosity is higher, and the ratio of the adhesion area of the interface of non-light inputting end face and reflector plate is smaller.Thus, exist
The incident light that non-light inputting end face has been passed through in experiment 1 is also not reach reflector plate directly in the interface, and in space easily
Scattered reflection.
(experiment 3)
Next, be used for the surface roughness Ra for studying non-light inputting end face for the non-light inputting end face and reflector plate
The experiment of influence that causes of adhesion strength.First, preparing the reflector plate that bandwidth is 12mm, (temple ridge makes made, product name：Hide
Light polyester film adhesive tape, model：No.6370), be arranged respectively at surface roughness Ra be respectively 0.0044 μm, 0.0395 μm,
0.0677 μm, 0.1170 μm, 0.1640 μm, 0.4040 μm, 0.5670 μm, on 2.686 μm of glass surface.These samples are distinguished
It is used as example 7~14.Moreover, being similarly arranged respectively at surface roughness Ra for 24mm reflector plate for bandwidth and being respectively
0.0044 μm, 0.0395 μm, 0.0677 μm, 0.117 μm, 0.164 μm, 0.404 μm, 0.567 μm, 2.686 μm of glass surface
On.15~22 exemplified by these samples difference.
For these samples, the stripping that adhesive tape/adhesive sheet as defined in JIS Z 0237 is carried out in the same manner as experiment 2 is glued
Adhesion tests, have calculated the adhesion strength P (N/10mm) for carrying out the peel adhesion experiment of each 5 times for 1 sample and determining
Average value (following, be also only called adhesion strength).The non-light inputting end face of the sample of example 7~22 and the interface of reflector plate it is viscous
Put forth effort P as shown in table 3 respectively.Table 3 also show that the Surface porosity of example 7 and example 15 for 0% when, calculated according to adhesion strength P
Surface porosity.Moreover, the surface roughness Ra of the sample of example 7~14 and adhesion strength P relation are as shown in figure 9, example 15
The surface roughness Ra of~22 sample and adhesion strength P relation are as shown in Figure 10.
【Table 3】
Table 3
More than, surface roughness Ra and the Surface porosity in non-light inputting end face exist positive related.Thus, show
Show, in the case where the surface roughness Ra in non-light inputting end face is more than 0.8 μm, Surface porosity is more than 40%, under brightness
Drop can not be ignored.
The utility model is described in detail by with reference to specific mode, but does not depart from purport of the present utility model and model
Enclose and various changes can be carried out and corrected self-evident to those skilled in the art.
It should be noted that the application is based on the Japanese patent application (Japanese Patent Application filed an application for 12 days 2 months in 2015
2015-025339), it is incorporated herein entirely through reference.
Label declaration
1 liquid crystal display device
2 liquid crystal panels
3 sheet light emitting apparatus
4 light sources
5 light guide plates (glass)
6 reflector plates
7 diffusion sheets
8 reflectors
10A~10C pips
12 frits
14 glass baseplates
51 light-emitting faces (the first face)
52 light reflection surfaces (the second face)
53 light inputting end faces (first end face)
54th, 55,56 non-light inputting end face (second end face)
57 incident side fillet surfaces (the first fillet surface)
58 non-light incidence side fillet surfaces (the second fillet surface)
Claims (32)
1. a kind of glass light guide plate, with glass and reflector plate, wherein,
The glass has：
First face；
Second face relative with first face；
It is arranged at least one first end face between first face and second face；And
At least one second end faces between first face and second face and different with the first end face are arranged on,
The effective optical path length of the glass is 5~200cm,
The average internal transmissivity of visible domain in the effective optical path length of the glass is more than 80%,
The surface roughness Ra of the second end face is less than 0.8 μm,
The reflector plate is configured with the second end face.
2. glass light guide plate according to claim 1, wherein,
First face is rectangular shape,
The glass has second end face described at least three,
The surface roughness Ra of the second end face is less than 0.8 μm.
3. glass light guide plate according to claim 1 or 2, wherein,
The surface roughness Ra of the second end face is more than the surface roughness Ra of the first end face.
4. glass light guide plate according to claim 3, wherein,
The surface roughness Ra of the second end face is bigger than the surface roughness Ra of the first end face.
5. glass light guide plate according to claim 1 or 2, wherein,
The glass has at least one fillet surface between first face or second face and the second end face,
Average value on the width dimensions L of second end face length direction is set to Lave, maximum is set to Lmax, will most
Small value is set to LminWhen, meet Lmax≤1.5×LaveAnd Lmin≥0.5×Lave, wherein, Lave、Lmax、LminUnit be mm.
6. glass light guide plate according to claim 3, wherein,
The glass has at least one fillet surface between first face or second face and the second end face,
Average value on the width dimensions L of second end face length direction is set to Lave, maximum is set to Lmax, will most
Small value is set to LminWhen, meet Lmax≤1.5×LaveAnd Lmin≥0.5×Lave, wherein, Lave、Lmax、LminUnit be mm.
7. glass light guide plate according to claim 4, wherein,
The glass has at least one fillet surface between first face or second face and the second end face,
Average value on the width dimensions L of second end face length direction is set to Lave, maximum is set to Lmax, will most
Small value is set to LminWhen, meet Lmax≤1.5×LaveAnd Lmin≥0.5×Lave, wherein, Lave、Lmax、LminUnit be mm.
8. glass light guide plate according to claim 1 or 2, wherein,
The second end face is less than 40% with the Surface porosity V that the utilization following formula of the interface of the reflector plate is obtained,
V=100 × (1-P/P0)
P：Determined using the peel adhesion experiment as defined in the JIS Z 0237, reflector plate is relative to second end
The peel adhesion in face, wherein, the unit of the peel adhesion is N/10mm
P0：Determined using the peel adhesion experiment as defined in the JIS Z 0237, reflector plate is relative to surface roughness
Ra is the peel adhesion of the end face of less than 0.0050 μm of glass, wherein, the unit of the peel adhesion is N/10mm.
9. glass light guide plate according to claim 3, wherein,
The second end face is less than 40% with the Surface porosity V that the utilization following formula of the interface of the reflector plate is obtained,
V=100 × (1-P/P0)
P：Determined using the peel adhesion experiment as defined in the JIS Z 0237, reflector plate is relative to second end
The peel adhesion in face, wherein, the unit of the peel adhesion is N/10mm
P0：Determined using the peel adhesion experiment as defined in the JIS Z 0237, reflector plate is relative to surface roughness
Ra is the peel adhesion of the end face of less than 0.0050 μm of glass, wherein, the unit of the peel adhesion is N/10mm.
10. glass light guide plate according to claim 4, wherein,
The second end face is less than 40% with the Surface porosity V that the utilization following formula of the interface of the reflector plate is obtained,
V=100 × (1-P/P0)
P：Determined using the peel adhesion experiment as defined in the JIS Z 0237, reflector plate is relative to second end
The peel adhesion in face, wherein, the unit of the peel adhesion is N/10mm
P0：Determined using the peel adhesion experiment as defined in the JIS Z 0237, reflector plate is relative to surface roughness
Ra is the peel adhesion of the end face of less than 0.0050 μm of glass, wherein, the unit of the peel adhesion is N/10mm.
11. glass light guide plate according to claim 1 or 2, wherein,
The reflector plate has at least one in the group being made up of polyester resin, acrylic resin and polyurethane resin.
12. glass light guide plate according to claim 3, wherein,
The reflector plate has at least one in the group being made up of polyester resin, acrylic resin and polyurethane resin.
13. glass light guide plate according to claim 4, wherein,
The reflector plate has at least one in the group being made up of polyester resin, acrylic resin and polyurethane resin.
14. glass light guide plate according to claim 1 or 2, wherein,
The glass light guide plate is used in sheet light emitting apparatus.
15. glass light guide plate according to claim 1 or 2, wherein,
Pip is formed in second face.
16. glass light guide plate according to claim 1 or 2, wherein,
The surface roughness Ra of the second end face is less than 0.4 μm.
17. glass light guide plate according to claim 1 or 2, wherein,
The surface roughness Ra of the second end face is less than 0.2 μm.
18. glass light guide plate according to claim 1 or 2, wherein,
The surface roughness Ra of the second end face is less than 0.1 μm.
19. glass light guide plate according to claim 1 or 2, wherein,
The surface roughness Ra of the second end face is less than 0.04 μm.
20. a kind of glass light guide plate, the glass light guide plate has：
First face；
Second face relative with first face；
It is arranged at least one first end face between first face and second face；And
At least one second end faces between first face and second face and different with the first end face are arranged on,
Wherein,
The effective optical path length of the glass is 5~200cm,
The average internal transmissivity of visible domain in the effective optical path length of the glass is more than 80%,
The surface roughness Ra of the second end face is less than 0.8 μm.
21. glass light guide plate according to claim 20, wherein,
First face is rectangular shape,
The glass has second end face described at least three,
The surface roughness Ra of the second end face is less than 0.8 μm.
22. the glass light guide plate according to claim 20 or 21, wherein,
The surface roughness Ra of the second end face is more than the surface roughness Ra of the first end face.
23. glass light guide plate according to claim 22, wherein,
The surface roughness Ra of the second end face is bigger than the surface roughness Ra of the first end face.
24. the glass light guide plate according to claim 20 or 21, wherein,
The glass has at least one fillet surface between first face or second face and the second end face,
Average value on the width dimensions L of second end face length direction is set to Lave, maximum is set to Lmax, will most
Small value is set to LminWhen, meet Lmax≤1.5×LaveAnd Lmin≥0.5×Lave, wherein, Lave、Lmax、LminUnit be mm.
25. glass light guide plate according to claim 22, wherein,
The glass has at least one fillet surface between first face or second face and the second end face,
Average value on the width dimensions L of second end face length direction is set to Lave, maximum is set to Lmax, will most
Small value is set to LminWhen, meet Lmax≤1.5×LaveAnd Lmin≥0.5×Lave, wherein, Lave、Lmax、LminUnit be mm.
26. glass light guide plate according to claim 23, wherein,
The glass has at least one fillet surface between first face or second face and the second end face,
Average value on the width dimensions L of second end face length direction is set to Lave, maximum is set to Lmax, will most
Small value is set to LminWhen, meet Lmax≤1.5×LaveAnd Lmin≥0.5×Lave, wherein, Lave、Lmax、LminUnit be mm.
27. the glass light guide plate according to claim 20 or 21, wherein,
The glass light guide plate is used in sheet light emitting apparatus.
28. the glass light guide plate according to claim 20 or 21, wherein,
Pip is formed in second face.
29. the glass light guide plate according to claim 20 or 21, wherein,
The surface roughness Ra of the second end face is less than 0.4 μm.
30. the glass light guide plate according to claim 20 or 21, wherein,
The surface roughness Ra of the second end face is less than 0.2 μm.
31. the glass light guide plate according to claim 20 or 21, wherein,
The surface roughness Ra of the second end face is less than 0.1 μm.
32. the glass light guide plate according to claim 20 or 21, wherein,
The surface roughness Ra of the second end face is less than 0.04 μm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-025339 | 2015-02-12 | ||
| JP2015025339 | 2015-02-12 | ||
| PCT/JP2016/053687 WO2016129559A1 (en) | 2015-02-12 | 2016-02-08 | Glass member and glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206338646U true CN206338646U (en) | 2017-07-18 |
Family
ID=59304317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201690000186.3U Expired - Fee Related CN206338646U (en) | 2015-02-12 | 2016-02-08 | Glass component and glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206338646U (en) |
-
2016
- 2016-02-08 CN CN201690000186.3U patent/CN206338646U/en not_active Expired - Fee Related
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Address after: Tokyo, Japan Patentee after: AGC Corporation Address before: Tokyo, Japan Patentee before: Asahi Glass Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170718 Termination date: 20210208 |