WO2009054446A1 - Feuille de diffusion - Google Patents
Feuille de diffusion Download PDFInfo
- Publication number
- WO2009054446A1 WO2009054446A1 PCT/JP2008/069216 JP2008069216W WO2009054446A1 WO 2009054446 A1 WO2009054446 A1 WO 2009054446A1 JP 2008069216 W JP2008069216 W JP 2008069216W WO 2009054446 A1 WO2009054446 A1 WO 2009054446A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- diffusion sheet
- projection
- region
- projection surface
- Prior art date
Links
Classifications
-
- 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
-
- 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
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
-
- 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
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
- Planar Illumination Modules (AREA)
Abstract
L'invention concerne une feuille de diffusion disposée au-dessus d'une source lumineuse et qui comprend une surface de lumière incidente sur laquelle la lumière issue de la source lumineuse est incidente et une surface de projection de lumière à partir de laquelle la lumière est projetée. La surface de lumière incidente ou la surface de projection de lumière présente une structure concave et convexe dans laquelle un certain nombre de parties concaves et convexes incurvées continues sont disposées. La feuille de diffusion de l'invention est caractérisée en ce qu'un angle de diffusion de lumière de la lumière projetée à partir d'une première zone d'une surface de projection comprenant une zone de projection de la source lumineuse dans une vue en plan de la feuille de diffusion est inférieur à un angle de diffusion de lumière de la lumière projetée à partir d'une deuxième zone d'une surface de projection interposée dans la source lumineuse dans la vue en plan de la feuille de diffusion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009538247A JPWO2009054446A1 (ja) | 2007-10-23 | 2008-10-23 | 拡散シート |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-275827 | 2007-10-23 | ||
JP2007275827 | 2007-10-23 | ||
JP2008-066663 | 2008-03-14 | ||
JP2008066663 | 2008-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009054446A1 true WO2009054446A1 (fr) | 2009-04-30 |
Family
ID=40579548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/069216 WO2009054446A1 (fr) | 2007-10-23 | 2008-10-23 | Feuille de diffusion |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPWO2009054446A1 (fr) |
TW (1) | TW200925730A (fr) |
WO (1) | WO2009054446A1 (fr) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010250302A (ja) * | 2009-03-25 | 2010-11-04 | Asahi Kasei Corp | 光線制御ユニット |
JP2011022266A (ja) * | 2009-07-14 | 2011-02-03 | Asahi Kasei Corp | 拡散シート |
JP2011022265A (ja) * | 2009-07-14 | 2011-02-03 | Asahi Kasei Corp | 拡散シート |
JP2011081366A (ja) * | 2009-09-09 | 2011-04-21 | Asahi Kasei Corp | 拡散シート、光源ユニット、及び液晶表示装置 |
JP2011128453A (ja) * | 2009-12-18 | 2011-06-30 | Takiron Co Ltd | 光学シート及びこれを用いたバックライトユニット |
JP2011248052A (ja) * | 2010-05-26 | 2011-12-08 | Mitsubishi Gas Chemical Co Inc | 光拡散シートおよびそれを用いたled光源の照明装置 |
JP2012027423A (ja) * | 2010-07-28 | 2012-02-09 | Toppan Printing Co Ltd | 光学シート、光学シート積層体、バックライトユニット及びディスプレイ装置 |
JP2015537360A (ja) * | 2013-10-24 | 2015-12-24 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 2つ以上のマイクロ構造化されたフィルムを有する光学構造 |
TWI566008B (zh) * | 2013-01-17 | 2017-01-11 | 鴻海精密工業股份有限公司 | 擴散片及背光模組 |
EP3373049A1 (fr) * | 2017-03-09 | 2018-09-12 | Panasonic Intellectual Property Management Co., Ltd. | Dispositif de source de lumière de projection |
JP2019511840A (ja) * | 2016-03-16 | 2019-04-25 | ルミレッズ ホールディング ベーフェー | Ledモジュールを製造する方法 |
EP3561553A1 (fr) * | 2018-04-25 | 2019-10-30 | Koninklijke Philips N.V. | Agencement de laser avec réduction de perte de diffusion |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000149633A (ja) * | 1998-11-05 | 2000-05-30 | Nippon Chemitec Kk | 直下型バックライト用シート及びこれを用いた面発光装置 |
JP2005107020A (ja) * | 2003-09-29 | 2005-04-21 | Sony Corp | バックライトおよび拡散板の製造方法、並びに、液晶表示装置 |
JP2007178705A (ja) * | 2005-12-28 | 2007-07-12 | Takiron Co Ltd | 光拡散シート |
JP2007264393A (ja) * | 2006-03-29 | 2007-10-11 | Sony Corp | 液晶表示装置 |
-
2008
- 2008-10-22 TW TW097140490A patent/TW200925730A/zh unknown
- 2008-10-23 WO PCT/JP2008/069216 patent/WO2009054446A1/fr active Application Filing
- 2008-10-23 JP JP2009538247A patent/JPWO2009054446A1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000149633A (ja) * | 1998-11-05 | 2000-05-30 | Nippon Chemitec Kk | 直下型バックライト用シート及びこれを用いた面発光装置 |
JP2005107020A (ja) * | 2003-09-29 | 2005-04-21 | Sony Corp | バックライトおよび拡散板の製造方法、並びに、液晶表示装置 |
JP2007178705A (ja) * | 2005-12-28 | 2007-07-12 | Takiron Co Ltd | 光拡散シート |
JP2007264393A (ja) * | 2006-03-29 | 2007-10-11 | Sony Corp | 液晶表示装置 |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010250302A (ja) * | 2009-03-25 | 2010-11-04 | Asahi Kasei Corp | 光線制御ユニット |
JP2011022266A (ja) * | 2009-07-14 | 2011-02-03 | Asahi Kasei Corp | 拡散シート |
JP2011022265A (ja) * | 2009-07-14 | 2011-02-03 | Asahi Kasei Corp | 拡散シート |
JP2011081366A (ja) * | 2009-09-09 | 2011-04-21 | Asahi Kasei Corp | 拡散シート、光源ユニット、及び液晶表示装置 |
JP2011128453A (ja) * | 2009-12-18 | 2011-06-30 | Takiron Co Ltd | 光学シート及びこれを用いたバックライトユニット |
JP2011248052A (ja) * | 2010-05-26 | 2011-12-08 | Mitsubishi Gas Chemical Co Inc | 光拡散シートおよびそれを用いたled光源の照明装置 |
JP2012027423A (ja) * | 2010-07-28 | 2012-02-09 | Toppan Printing Co Ltd | 光学シート、光学シート積層体、バックライトユニット及びディスプレイ装置 |
TWI566008B (zh) * | 2013-01-17 | 2017-01-11 | 鴻海精密工業股份有限公司 | 擴散片及背光模組 |
JP2015537360A (ja) * | 2013-10-24 | 2015-12-24 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 2つ以上のマイクロ構造化されたフィルムを有する光学構造 |
JP2019511840A (ja) * | 2016-03-16 | 2019-04-25 | ルミレッズ ホールディング ベーフェー | Ledモジュールを製造する方法 |
EP3373049A1 (fr) * | 2017-03-09 | 2018-09-12 | Panasonic Intellectual Property Management Co., Ltd. | Dispositif de source de lumière de projection |
US10185211B2 (en) | 2017-03-09 | 2019-01-22 | Panasonic Intellectual Property Management, Co., Ltd. | Projection light source device |
EP3561553A1 (fr) * | 2018-04-25 | 2019-10-30 | Koninklijke Philips N.V. | Agencement de laser avec réduction de perte de diffusion |
Also Published As
Publication number | Publication date |
---|---|
JPWO2009054446A1 (ja) | 2011-03-03 |
TW200925730A (en) | 2009-06-16 |
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