KR101024235B1 - 광 확산판 - Google Patents
광 확산판 Download PDFInfo
- Publication number
- KR101024235B1 KR101024235B1 KR1020080037934A KR20080037934A KR101024235B1 KR 101024235 B1 KR101024235 B1 KR 101024235B1 KR 1020080037934 A KR1020080037934 A KR 1020080037934A KR 20080037934 A KR20080037934 A KR 20080037934A KR 101024235 B1 KR101024235 B1 KR 101024235B1
- Authority
- KR
- South Korea
- Prior art keywords
- light diffuser
- styrene
- light
- transparent resin
- particle diameter
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/254—Polymeric or resinous material
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
비교예 1 | 비교예 2 | 실시예 1 | 비교예 3 | 비교예 4 | 실시예 2 | 비교예 5 | |
평균 입자 직경(㎛) |
2.49 | 2.17 | 0.67 | 0.12 | 2.44 | 0.85 | 0.50 |
입자 직경의 표준 편자 (㎛) | 0.14 | 0.29 | 0.07 | 0.01 | 0.52 | 0.03 | 0.04 |
Tt1) (%) | 56.2 | 54.8 | 49.6 | 55.0 | 69.3 | 55.1 | 70.2 |
실시예 No. | 실시예 3 | 비교예 6 | 실시예 4 | 실시예 5 | 실시예 6 | 실시예 7 |
평균 입자 직경 (㎛) | 1.00 | 2.44 | 0.85 | 0.72 | 0.82 | 0.64 |
입자 직경의 표준 편차 (㎛) | 0.05 | 0.52 | 0.03 | 0.07 | 0.02 | 0.04 |
Tt1 )(%) -1.0 부 -1.5 부 -2.5 부 |
58.8 54.3 50.0 |
78.0 69.1 60.1 |
57.8 --- --- |
51.1 43.4 38.9 |
57.7 54.6 51.1 |
57.2 54.3 50.4 |
실시예 No. | 8 | 9 | 10 | 11 | 12 |
평균 입자 직경 (㎛) | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
입자 직경의 표준 편차 (㎛) | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
두께 (mm) | 2.0 | 2.0 | 3.0 | 1.75 | 1.5 |
확산기의 양(부) | 1.42 | 0.42 | 0.45 | 1.68 | 1.40 |
Tt (%) | 53.4 | 60.6 | 53.5 | 52.4 | 58.6 |
Claims (10)
- 투명 수지 및 광 확산기를 포함한 투명 수지 조성물을 포함하는 광 확산판으로서,상기 광 확산기는 0.6 ㎛ 내지 1.5 ㎛의 평균 입자 직경을 갖고, 0.01 ㎛ 내지 0.5 ㎛의 입자 직경의 표준 편차를 갖고, 상기 투명 수지와 상기 광 확산기 사이의 굴절률 차의 절대값 │△n│이 적어도 0.05인, 광 확산판.
- 제 1 항에 있어서,상기 투명 수지는 폴리스티렌인, 광 확산판.
- 제 1 항에 있어서,상기 투명 수지는 스티렌계 모노머-메타크릴산 공중합체인, 광 확산판.
- 제 1 항에 있어서,상기 광 확산기는 0.6 ㎛ 내지 0.9 ㎛의 평균 입자 직경을 갖는, 광 확산판.
- 제 1 항에 있어서,상기 광 확산기는 스티렌계 수지 입자들, 아크릴계 수지 입자들, 및 실리콘 입자들에서 선택된 적어도 하나의 광 확산기인, 광 확산판.
- 제 1 항에 있어서,상기 광 확산기의 양은 상기 투명 수지의 100 중량부에 대해 0.3 중량부 내지 3 중량부인, 광 확산판.
- 제 1 항에 기재된 상기 광 확산판과, 제 1 항에 기재된 상기 광 확산판의 적어도 일 표면에 적층된 투명 수지 및 UV 흡수제를 포함한 UV 흡수층을 포함하는, 다층 광 확산판.
- 제 7 항에 있어서,상기 UV 흡수층에 포함된 상기 투명 수지는 메틸 메타크릴레이트 수지류와 스티렌계 수지류에서 선택된 적어도 하나의 수지인, 다층 광 확산판.
- 제 7 항에 있어서,상기 UV 흡수층에 포함된 상기 투명 수지는 메틸 메타크릴레이트-스티렌 공중합체인, 다층 광 확산판.
- 투명 수지의 총 광투과율을 감소시키는 방법으로서,광 확산기를 상기 투명 수지에 부가하는 단계를 포함하고,상기 광 확산기는 0.6 ㎛ 내지 1.5 ㎛의 평균 입자 직경과, 0.01 ㎛ 내지 0.5 ㎛의 입자 직경의 표준 편차를 갖고, 상기 투명 수지와 상기 광 확산기 사이의 굴절률 차의 절대값 │△n│이 적어도 0.05인, 투명 수지의 총 광투과율을 감소시키는 방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007115223 | 2007-04-25 | ||
JPJP-P-2007-00115223 | 2007-04-25 | ||
JP2007213416A JP4910940B2 (ja) | 2007-04-25 | 2007-08-20 | 光拡散板 |
JPJP-P-2007-00213416 | 2007-08-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080095793A KR20080095793A (ko) | 2008-10-29 |
KR101024235B1 true KR101024235B1 (ko) | 2011-03-29 |
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ID=39887351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080037934A KR101024235B1 (ko) | 2007-04-25 | 2008-04-23 | 광 확산판 |
Country Status (2)
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US (1) | US20080268235A1 (ko) |
KR (1) | KR101024235B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009063998A (ja) * | 2007-08-09 | 2009-03-26 | Sumitomo Chemical Co Ltd | 光拡散板 |
KR101038660B1 (ko) * | 2008-12-29 | 2011-06-02 | 제일모직주식회사 | 베이스층과 스킨층에 이종의 uv안정제를 포함하는 확산판 |
KR101749480B1 (ko) * | 2009-03-31 | 2017-06-20 | 주식회사 쿠라레 | 발광체 |
US20230236063A1 (en) * | 2022-01-24 | 2023-07-27 | Analytik Jena Us Llc | Light conversion device with high uniformity |
Citations (4)
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JP2001311806A (ja) | 2000-04-27 | 2001-11-09 | Mitsubishi Rayon Co Ltd | 光拡散性シート、その製造方法および透過型スクリーン |
JP2003004904A (ja) | 2001-06-25 | 2003-01-08 | Dainippon Printing Co Ltd | 高屈折率化した防眩層を有する反射防止フィルム及び低反射表示装置 |
JP2004046258A (ja) | 2003-10-27 | 2004-02-12 | Dainippon Printing Co Ltd | 防眩フィルムおよびその製造方法 |
JP2007256962A (ja) | 2007-04-20 | 2007-10-04 | Dainippon Printing Co Ltd | 防眩フィルム、偏光フィルム及び透過型表示装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6273577B1 (en) * | 1997-10-31 | 2001-08-14 | Sanyo Electric Co., Ltd. | Light guide plate, surface light source using the light guide plate, and liquid crystal display using the surface light source |
CN1809766B (zh) * | 2003-06-17 | 2010-05-26 | 帝人化成株式会社 | 正下型背光式液晶显示装置及光漫射板 |
TW200523503A (en) * | 2003-09-29 | 2005-07-16 | Sony Corp | Backlight, light guiding plate, method for manufacturing diffusion plate and light guiding plate, and liquid crystal display device |
JP4578091B2 (ja) * | 2003-12-16 | 2010-11-10 | 東洋インキ製造株式会社 | 反射型液晶表示装置を構成する光硬化型光散乱膜用組成物、およびそれを用いた光散乱膜 |
JP2007065120A (ja) * | 2005-08-30 | 2007-03-15 | Funai Electric Co Ltd | 液晶モジュールの直下型バックライト装置 |
NL1034727C2 (nl) * | 2006-11-24 | 2010-11-30 | Sumitomo Chemical Co | Lichtdiffusieplaat, oppervlakemissie lichtbroninrichting in vloeibaar kristal weergave inrichting. |
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2008
- 2008-04-23 KR KR1020080037934A patent/KR101024235B1/ko active IP Right Grant
- 2008-04-23 US US12/107,903 patent/US20080268235A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001311806A (ja) | 2000-04-27 | 2001-11-09 | Mitsubishi Rayon Co Ltd | 光拡散性シート、その製造方法および透過型スクリーン |
JP2003004904A (ja) | 2001-06-25 | 2003-01-08 | Dainippon Printing Co Ltd | 高屈折率化した防眩層を有する反射防止フィルム及び低反射表示装置 |
JP2004046258A (ja) | 2003-10-27 | 2004-02-12 | Dainippon Printing Co Ltd | 防眩フィルムおよびその製造方法 |
JP2007256962A (ja) | 2007-04-20 | 2007-10-04 | Dainippon Printing Co Ltd | 防眩フィルム、偏光フィルム及び透過型表示装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20080095793A (ko) | 2008-10-29 |
US20080268235A1 (en) | 2008-10-30 |
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