JP2007149672A - Ledバックライト装置の導光板 - Google Patents
Ledバックライト装置の導光板 Download PDFInfo
- Publication number
- JP2007149672A JP2007149672A JP2006315330A JP2006315330A JP2007149672A JP 2007149672 A JP2007149672 A JP 2007149672A JP 2006315330 A JP2006315330 A JP 2006315330A JP 2006315330 A JP2006315330 A JP 2006315330A JP 2007149672 A JP2007149672 A JP 2007149672A
- Authority
- JP
- Japan
- Prior art keywords
- guide plate
- light guide
- light
- incident
- ellipse
- 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
Links
Classifications
-
- 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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S385/00—Optical waveguides
- Y10S385/901—Illuminating or display apparatus
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)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Liquid Crystal (AREA)
Abstract
【解決手段】該導光板は平板形の導光板であって、一対の向かい合う広い面と、上記導光板の厚みとなる幅で上記広い面の間に形成された狭い面とを含む。上記狭い面は上記LED光源に向かう部分に入射面が形成され、上記広い面の一面は上記LED光源から入射された光を放出する出射面となり、上記入射面には複数の楕円柱状の溝が厚さ方向に陰刻される。このように入射面に複数の楕円柱状の溝を厚さ方向に陰刻することで光の入射角を広げることができる。
【選択図】図7
Description
106、206 楕円形の溝
108 添部
130、230 LED光源
208 溝の床面
F 焦点
Claims (8)
- LEDを光源とするバックライト装置に設けられる平板形の導光板であって、
一対の向かい合う広い面と、
前記導光板の厚みとなる幅で前記広い面の間に形成された狭い面を含み、
前記狭い面は前記LED光源に向かう部分に入射面が形成され、前記広い面の一面は前記LED光源から入射された光を放出する出射面となり、前記入射面には複数の楕円柱状の溝が厚さ方向に陰刻されたことを特徴とする導光板。 - 前記陰刻された楕円柱は、該当する数の楕円を互いに部分的に重なるように前記導光板の出射面の厚さ方向に延長した形態であることを特徴とする、請求項1に記載の導光板。
- 前記楕円の重なる部分は、前記楕円柱の間に入射面から外側へ延長した添部を形成することを特徴とする、請求項2に記載の導光板。
- 前記楕円の重なる部分の幅は前記楕円幅の10乃至30%であることを特徴とする、請求項2に記載の導光板。
- 前記楕円は、長軸と短軸の比が1.5:1乃至3:1であることを特徴とする、請求項2に記載の導光板。
- 前記楕円は長軸と短軸の比が1.8:1乃至2.2:1であることを特徴とする、請求項5に記載の導光板。
- 前記楕円は長軸が2乃至6mm、短軸が1乃至3mmであることを特徴とする、請求項2に記載の導光板。
- 前記楕円柱は前記入射面に湾入された楕円の長軸方向端部には前記入射面と平行な平面が形成されたことを特徴とする、請求項1または請求項2に記載の導光板。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050112541A KR100790692B1 (ko) | 2005-11-23 | 2005-11-23 | Led 백라이트 장치의 도광판 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007149672A true JP2007149672A (ja) | 2007-06-14 |
JP4537368B2 JP4537368B2 (ja) | 2010-09-01 |
Family
ID=38053262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006315330A Active JP4537368B2 (ja) | 2005-11-23 | 2006-11-22 | Ledバックライト装置の導光板 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7350958B2 (ja) |
JP (1) | JP4537368B2 (ja) |
KR (1) | KR100790692B1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009199948A (ja) * | 2008-02-22 | 2009-09-03 | Sharp Corp | 導光シート、キー入力装置及び携帯端末 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7808578B2 (en) * | 2007-07-12 | 2010-10-05 | Wintek Corporation | Light guide place and light-diffusing structure thereof |
US20110249458A1 (en) * | 2010-04-13 | 2011-10-13 | Gator Licensing Llc | Illuminated Panel Portion and Method of Production Thereof |
US8439548B2 (en) | 2011-06-30 | 2013-05-14 | Skc Haas Display Films Co., Ltd. | Symmetric serrated edge light guide having circular base segments |
US8491172B2 (en) | 2011-06-30 | 2013-07-23 | Skc Haas Display Films Co., Ltd. | Symmetric serrated edge light guide film having elliptical base segments |
US8382360B2 (en) | 2011-06-30 | 2013-02-26 | Skc Haas Display Films Co., Ltd. | Symmetric serrated edge light guide film having elliptical base segments |
KR101240780B1 (ko) | 2011-08-11 | 2013-03-11 | 한국산업기술대학교산학협력단 | 엘이디 면조명 장치 |
US8870434B2 (en) | 2011-09-12 | 2014-10-28 | Skc Haas Display Films Co., Ltd. | Asymmetric serrated edge light guide film having circular base segments |
US8858058B2 (en) | 2011-09-12 | 2014-10-14 | Skc Haas Display Films Co., Ltd. | Asymmetric serrated edge light guide film having circular base segments |
US8480283B2 (en) | 2011-09-12 | 2013-07-09 | Skc Haas Display Films Co., Ltd. | Asymmetric serrated edge light guide film having elliptical base segments |
US20130063975A1 (en) * | 2011-09-12 | 2013-03-14 | Skc Haas Display Films Co., Ltd. | Asymmetric serrated edge light guide film having elliptical base segments |
DE202014105391U1 (de) * | 2014-11-11 | 2016-02-12 | Zumtobel Lighting Gmbh | Lichtleitelement zur Beeinflussung eines von LEDs abgestrahlten Lichts sowie Anordnung zur Lichtabgabe mit einem solchen Lichtleitelement und Leuchte |
TWI588544B (zh) | 2015-09-23 | 2017-06-21 | 元太科技工業股份有限公司 | 前光模組及顯示模組 |
KR20170043727A (ko) * | 2015-10-13 | 2017-04-24 | 삼성디스플레이 주식회사 | 표시 장치 |
CN106249342A (zh) * | 2016-09-27 | 2016-12-21 | 上海向隆电子科技有限公司 | 可消除热点现象的导光板及其背光模组 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09145934A (ja) * | 1995-11-27 | 1997-06-06 | Matsushita Electric Works Ltd | 照明装置 |
JP2002196151A (ja) * | 2000-12-25 | 2002-07-10 | Citizen Electronics Co Ltd | 導光板 |
JP2004325959A (ja) * | 2003-04-25 | 2004-11-18 | Matsushita Electric Works Ltd | 液晶バックライト装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10260404A (ja) * | 1997-03-18 | 1998-09-29 | Seiko Epson Corp | 照明装置、液晶表示装置及び電子機器 |
KR20030043257A (ko) * | 2001-11-27 | 2003-06-02 | 주식회사 흥진메텍 | 렌티큘러 렌즈를 구비한 도광판 및 이를 이용한 백라이트장치 |
-
2005
- 2005-11-23 KR KR1020050112541A patent/KR100790692B1/ko active IP Right Grant
-
2006
- 2006-11-21 US US11/602,303 patent/US7350958B2/en active Active
- 2006-11-22 JP JP2006315330A patent/JP4537368B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09145934A (ja) * | 1995-11-27 | 1997-06-06 | Matsushita Electric Works Ltd | 照明装置 |
JP2002196151A (ja) * | 2000-12-25 | 2002-07-10 | Citizen Electronics Co Ltd | 導光板 |
JP2004325959A (ja) * | 2003-04-25 | 2004-11-18 | Matsushita Electric Works Ltd | 液晶バックライト装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009199948A (ja) * | 2008-02-22 | 2009-09-03 | Sharp Corp | 導光シート、キー入力装置及び携帯端末 |
Also Published As
Publication number | Publication date |
---|---|
KR20070054489A (ko) | 2007-05-29 |
KR100790692B1 (ko) | 2008-01-02 |
US7350958B2 (en) | 2008-04-01 |
US20070115689A1 (en) | 2007-05-24 |
JP4537368B2 (ja) | 2010-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4537368B2 (ja) | Ledバックライト装置の導光板 | |
JP4992721B2 (ja) | 面発光装置及び液晶表示装置 | |
KR100590535B1 (ko) | 백라이트 유니트 | |
JP4273930B2 (ja) | 導光板及びバックライト装置 | |
KR101872348B1 (ko) | 백라이트용 도광판 및 그 제조 방법 | |
US20090091837A1 (en) | Light guiding film | |
JP2007214001A (ja) | 導光板、導光板成形用金型、導光板成形用金型の製造方法および導光板の製造方法 | |
KR20190017951A (ko) | 미세 구조화되고 패터닝된 도광판들 및 이를 포함하는 장치들 | |
JP2007048465A (ja) | Led面光源装置 | |
JP2014143173A (ja) | 面光源装置及びその導光板 | |
JP4732266B2 (ja) | 導光板 | |
JP2007121675A (ja) | 液晶表示装置 | |
JP2005063912A (ja) | 導光板及びその製造方法 | |
KR101147095B1 (ko) | 복합 도광판 및 이를 이용한 백라이트 유닛 | |
JP5332039B2 (ja) | 光照射装置 | |
JP2005063913A (ja) | 導光板 | |
WO2018032914A1 (zh) | 导光板、背光模组及显示装置 | |
TWM508682U (zh) | 導光條結構 | |
JP2012129189A (ja) | 照明装置及び液晶ディスプレイ | |
JP2008238610A (ja) | 金型部品および光拡散板 | |
JP2013105595A (ja) | 導光板、面光源装置及び透過型画像表示装置 | |
WO2012114553A1 (ja) | 導光部材及びこれを備えた発光装置 | |
JP5984363B2 (ja) | 導光板、面光源装置及び透過型画像表示装置 | |
TW201335642A (zh) | 導光板及其製造方法 | |
JP2010251246A (ja) | 導光体、該導光体を用いた面光源装置、および該面光源装置を用いた表示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090331 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090630 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20091222 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100422 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20100506 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100525 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100617 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4537368 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
R370 | Written measure of declining of transfer procedure |
Free format text: JAPANESE INTERMEDIATE CODE: R370 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
S631 | Written request for registration of reclamation of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313631 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
S631 | Written request for registration of reclamation of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313631 |
|
S633 | Written request for registration of reclamation of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313633 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130625 Year of fee payment: 3 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |