JP2019182700A - 導光板 - Google Patents
導光板 Download PDFInfo
- Publication number
- JP2019182700A JP2019182700A JP2018074488A JP2018074488A JP2019182700A JP 2019182700 A JP2019182700 A JP 2019182700A JP 2018074488 A JP2018074488 A JP 2018074488A JP 2018074488 A JP2018074488 A JP 2018074488A JP 2019182700 A JP2019182700 A JP 2019182700A
- Authority
- JP
- Japan
- Prior art keywords
- less
- content
- glass plate
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- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000011521 glass Substances 0.000 claims abstract description 111
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000002834 transmittance Methods 0.000 claims description 51
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 19
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 14
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 8
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 36
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- 230000007423 decrease Effects 0.000 description 28
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 26
- 239000002994 raw material Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000004973 liquid crystal related substance Substances 0.000 description 10
- 229910052697 platinum Inorganic materials 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- 239000007791 liquid phase Substances 0.000 description 9
- 238000000465 moulding Methods 0.000 description 9
- 238000004031 devitrification Methods 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910052906 cristobalite Inorganic materials 0.000 description 4
- 238000006124 Pilkington process Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000007500 overflow downdraw method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 229910018967 Pt—Rh Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006025 fining agent Substances 0.000 description 2
- 239000006066 glass batch Substances 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000007088 Archimedes method Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000003280 down draw process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007372 rollout process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
- C03C17/04—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass by fritting glass powder
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Glass Compositions (AREA)
- Planar Illumination Modules (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
Description
2、12 光源
3、10 導光板
4、19 反射層
5 拡散板
6、14 光反射面
7 光出射面
11 ガラス板
13、16〜18 端面
15 ドット模様
19 反射層
Claims (6)
- 少なくともガラス板を有する導光板であって、
該ガラス板が、ガラス組成として、質量%で、SiO2 55〜80%、Al2O3 0〜15%、B2O3 1〜20%、Li2O+Na2O+K2O 1〜20%、MgO+CaO+SrO+BaO 0.1〜10%、SnO2 0〜0.5%、Sb2O3 0〜0.5%、Fe2O3 0〜0.005%を含有し、質量比(MgO+CaO)/(Li2O+Na2O+K2O+MgO+CaO+SrO+BaO)が0.40未満であることを特徴とする導光板。 - ガラス板中のCr2O3の含有量が5質量ppm以下、TiO2の含有量が50質量ppm以下、Ptの含有量が5質量ppm以下、Rhの含有量が5質量ppm以下であることを特徴とする請求項1に記載の導光板。
- ガラス板の塩基性度が0.54以下であることを特徴とする請求項1又は2に記載の導光板。
- ガラス板の光路長200mm、波長範囲400〜750nmにおける最高透過率が85%以上であり、ガラス板の光路長200mm、波長範囲400〜750nmにおける最低透過率が80%以上であり、且つ該最高透過率と該最低透過率の差が10%以下であることを特徴とする請求項1〜3の何れかに記載の導光板。
- ガラス板の少なくとも一方の表面上に、ドット模様が形成されていることを特徴とする請求項1〜4の何れかに記載の導光板。
- エッジライト型面発光装置に用いることを特徴とする請求項1〜5の何れかに記載の導光板。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018074488A JP7429093B2 (ja) | 2018-04-09 | 2018-04-09 | 導光板 |
PCT/JP2019/007566 WO2019198363A1 (ja) | 2018-04-09 | 2019-02-27 | 導光板 |
TW108108119A TW201944110A (zh) | 2018-04-09 | 2019-03-12 | 導光板 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018074488A JP7429093B2 (ja) | 2018-04-09 | 2018-04-09 | 導光板 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019182700A true JP2019182700A (ja) | 2019-10-24 |
JP7429093B2 JP7429093B2 (ja) | 2024-02-07 |
Family
ID=68164036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018074488A Active JP7429093B2 (ja) | 2018-04-09 | 2018-04-09 | 導光板 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP7429093B2 (ja) |
TW (1) | TW201944110A (ja) |
WO (1) | WO2019198363A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022131274A1 (ja) * | 2020-12-18 | 2022-06-23 | Agc株式会社 | ボロシリケートガラス、合わせガラス、及び車両用窓ガラス |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11951713B2 (en) | 2020-12-10 | 2024-04-09 | Corning Incorporated | Glass with unique fracture behavior for vehicle windshield |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007126298A (ja) * | 2005-10-31 | 2007-05-24 | Ohara Inc | 光学ガラス |
JP2011225418A (ja) * | 2010-03-30 | 2011-11-10 | Nippon Electric Glass Co Ltd | 光学ガラス |
WO2016031345A1 (ja) * | 2014-08-28 | 2016-03-03 | 旭硝子株式会社 | ガラス板 |
JP2017043530A (ja) * | 2015-06-24 | 2017-03-02 | 日本電気硝子株式会社 | 導光板 |
JP2017052687A (ja) * | 2015-08-17 | 2017-03-16 | ショット アクチエンゲゼルシャフトSchott AG | 導光板、及びバックライトを有する光学ディスプレイ |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2018159385A1 (ja) * | 2017-02-28 | 2020-01-16 | 日本電気硝子株式会社 | 導光板 |
-
2018
- 2018-04-09 JP JP2018074488A patent/JP7429093B2/ja active Active
-
2019
- 2019-02-27 WO PCT/JP2019/007566 patent/WO2019198363A1/ja active Application Filing
- 2019-03-12 TW TW108108119A patent/TW201944110A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007126298A (ja) * | 2005-10-31 | 2007-05-24 | Ohara Inc | 光学ガラス |
JP2011225418A (ja) * | 2010-03-30 | 2011-11-10 | Nippon Electric Glass Co Ltd | 光学ガラス |
WO2016031345A1 (ja) * | 2014-08-28 | 2016-03-03 | 旭硝子株式会社 | ガラス板 |
JP2017043530A (ja) * | 2015-06-24 | 2017-03-02 | 日本電気硝子株式会社 | 導光板 |
JP2017052687A (ja) * | 2015-08-17 | 2017-03-16 | ショット アクチエンゲゼルシャフトSchott AG | 導光板、及びバックライトを有する光学ディスプレイ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022131274A1 (ja) * | 2020-12-18 | 2022-06-23 | Agc株式会社 | ボロシリケートガラス、合わせガラス、及び車両用窓ガラス |
Also Published As
Publication number | Publication date |
---|---|
TW201944110A (zh) | 2019-11-16 |
WO2019198363A1 (ja) | 2019-10-17 |
JP7429093B2 (ja) | 2024-02-07 |
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