JP4403052B2 - ディスプレイシステムの照明装置 - Google Patents
ディスプレイシステムの照明装置 Download PDFInfo
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- JP4403052B2 JP4403052B2 JP2004325957A JP2004325957A JP4403052B2 JP 4403052 B2 JP4403052 B2 JP 4403052B2 JP 2004325957 A JP2004325957 A JP 2004325957A JP 2004325957 A JP2004325957 A JP 2004325957A JP 4403052 B2 JP4403052 B2 JP 4403052B2
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- JP
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- Prior art keywords
- light
- display
- light emitting
- emitting diodes
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- Prior art date
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- 238000005286 illumination Methods 0.000 claims description 14
- 238000009792 diffusion process Methods 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- Y10S362/00—Illumination
- Y10S362/80—Light emitting diode
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal Display Device Control (AREA)
Description
(A+G)×(B+G)≦S≦(A+3G)×(B+3G) (1)
D/S<1
I/S<1
(A+G)×(B+G)≦S≦(A+3G)×(B+3G) (1)
10 ケース
14 反射シート
20 光源
30 回路基板
40 光拡散板
50 光変調器
100 ディスプレイシステム
110 光変調器
200 ディスプレイシステム
205 バックライト源
210 ケース
212a、212b 側壁
214 反射シート
216 反射コーティング
218 階段状表面形成部
220 光源(発光ダイオード)
230 回路基板
240 光拡散板
A 表示領域の幅
B 表示領域の長さ
D 表示領域
G ピッチ
I 光入射領域
P 周辺領域
S 表面領域
h ケース210の高さ
θ 角度
Claims (4)
- ディスプレイの照明装置であって、
回路基板と、
アレイ状に分散して前記回路基板の表面領域Sに配置される複数の発光ダイオードと、
光学的に該複数の発光ダイオードに接続し、且つ該複数の発光ダイオードから出射された光を受光する光入射領域を有する少なくとも1つ光拡散板と、
前記複数の発光ダイオードを囲む複数の側壁を有する装置ケースとを備え、
前記複数の発光ダイオードは各発光ダイオードが隣接する発光ダイオードとピッチGで離間され、且つ前記表面領域Sは、前記複数の発光ダイオードと前記複数の発光ダイオードとのピッチGが、前記回路基板上で占める面積であり、
前記回路基板の前記表面領域Sは、前記少なくとも1つの光拡散板の前記光入射領域より広く、
前記複数の側壁は、内表面を有し、該側壁の内表面が前記発光ダイオードからの光を反射するように形成され、且つ前記複数の側壁の少なくとも一部が前記複数の発光ダイオードの面に対して傾斜しているように形成されているディスプレイの照明装置において、
前記ディスプレイは、画像を表示する表示領域を有するディスプレイパネルを備えており、前記ディスプレイは、少なくとも1つの光拡散板に光学的に接続され、且つ前記少なくとも1つの光拡散板の入射領域が前記表示領域対応しており、
前記表示領域は、幅Aと長さBを有し、
前記複数の発光ダイオードが前記回路基板においてアレイ状に分散して配置された前記表面領域Sは、(A+G)と(B+G)の積以上であり、且つ、(A+3G)と(B+3G)の積以下であり、
前記複数の側壁の少なくとも一つの側壁は、該側壁の少なくとも一部分が前記複数の発光ダイオードが配置された面に対して約60°〜約90°の角度で傾けられていることを特徴とするディスプレイシステムの照明装置。 - 前記ディスプレイパネルが液晶ディスプレイパネルであることを特徴とする請求項1に記載のディスプレイシステムの照明装置。
- 前記複数の側壁の少なくとも一つの側壁は、該側壁の少なくとも一部分が曲面に形成されていることを特徴とする請求項1又は請求項2に記載のディスプレイシステムの照明装置。
- 前記複数の側壁の少なくとも一つの側壁は、該側壁の内表面が前記装置ケースの中に光を散乱させるように形成されていることを特徴とする請求項1〜請求項3のいずれかに記載のディスプレイシステムの照明装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/758,364 US7591563B2 (en) | 2004-01-15 | 2004-01-15 | Backlight device for display system providing enhanced peripheral illumination |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005203346A JP2005203346A (ja) | 2005-07-28 |
JP4403052B2 true JP4403052B2 (ja) | 2010-01-20 |
Family
ID=34523279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004325957A Active JP4403052B2 (ja) | 2004-01-15 | 2004-11-10 | ディスプレイシステムの照明装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7591563B2 (ja) |
JP (1) | JP4403052B2 (ja) |
CN (1) | CN1570733B (ja) |
TW (1) | TWI254820B (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006301210A (ja) * | 2005-04-19 | 2006-11-02 | Sony Corp | バックライト装置及び液晶表示装置 |
KR101113236B1 (ko) * | 2005-04-26 | 2012-02-20 | 삼성전자주식회사 | 다이나믹한 영상을 위한 백라이트 유닛 및 이를 채용한디스플레이 장치 |
KR100691454B1 (ko) * | 2005-12-23 | 2007-03-12 | 삼성전기주식회사 | 측면 색편차를 제거한 led 백라이트 장치 |
EP2039988A4 (en) * | 2006-07-11 | 2010-04-21 | Sharp Kk | LIGHTING MODULE, BACKLIGHT, FRONT LIGHTING, AND DISPLAY |
KR101318372B1 (ko) * | 2006-08-03 | 2013-10-16 | 삼성디스플레이 주식회사 | 발광 유닛, 이를 갖는 백라이트 어셈블리 및 표시장치 |
JP2008060204A (ja) * | 2006-08-30 | 2008-03-13 | Nec Lcd Technologies Ltd | Ledバックライトユニットおよびそれを用いた液晶表示装置 |
MX2009013642A (es) | 2007-06-13 | 2010-02-17 | Thomson Licensing | Dispositivo de despliegue de imagenes comprendiendo dos etapas de modulacion. |
CN202101063U (zh) * | 2011-05-19 | 2012-01-04 | 深圳市华星光电技术有限公司 | 一种led光源结构及背光模组 |
US8845171B2 (en) | 2011-05-19 | 2014-09-30 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED light-source structure and backlight module |
JP5920616B2 (ja) * | 2011-11-28 | 2016-05-18 | Nltテクノロジー株式会社 | 直下型ledバックライト装置及びそれを用いた液晶表示装置 |
CN111258135B (zh) * | 2020-03-25 | 2023-03-14 | 京东方科技集团股份有限公司 | 色偏补偿方法、装置及显示设备 |
Family Cites Families (22)
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US6164789A (en) | 1996-07-12 | 2000-12-26 | Honeywell International Inc. | Illumination sources and systems |
US5709463A (en) | 1996-08-13 | 1998-01-20 | Delco Electronics Corporation | Backlighting for bright liquid crystal display |
US6007209A (en) * | 1997-03-19 | 1999-12-28 | Teledyne Industries, Inc. | Light source for backlighting |
JP3237571B2 (ja) | 1997-05-30 | 2001-12-10 | 市光工業株式会社 | 平面カラー発光装置 |
JPH1184377A (ja) | 1997-09-05 | 1999-03-26 | Hitachi Ltd | 液晶表示装置 |
JPH11344707A (ja) | 1998-06-02 | 1999-12-14 | Nissha Printing Co Ltd | 反射型液晶ディスプレイ用照明装置 |
JP2000235183A (ja) * | 1999-02-16 | 2000-08-29 | Matsushita Electric Ind Co Ltd | 照明装置およびこれを備えた携帯情報機器 |
JP2002015611A (ja) | 2000-06-30 | 2002-01-18 | Kuraray Co Ltd | 面光源素子およびそれを用いた表示装置 |
US6419372B1 (en) * | 2000-09-08 | 2002-07-16 | Rockwell Collins, Inc. | Compact optical wave-guide system for LED backlighting liquid crystal displays |
KR100788382B1 (ko) * | 2000-12-13 | 2007-12-31 | 엘지.필립스 엘시디 주식회사 | 액정표시장치의 백라이트 유닛 |
DE10102585A1 (de) * | 2001-01-20 | 2002-07-25 | Philips Corp Intellectual Pty | Farbige Beleuchtungseinrichtung |
DE10102586A1 (de) * | 2001-01-20 | 2002-07-25 | Philips Corp Intellectual Pty | Beleuchtungseinrichtung mit punktförmigen Lichtquellen |
JP2003043453A (ja) * | 2001-08-03 | 2003-02-13 | Minebea Co Ltd | 面状照明装置 |
JP2003223805A (ja) | 2002-01-30 | 2003-08-08 | Fuji Electric Co Ltd | 照明装置 |
JP2003331604A (ja) | 2002-05-16 | 2003-11-21 | Harison Toshiba Lighting Corp | バックライトユニット |
US7036946B1 (en) * | 2002-09-13 | 2006-05-02 | Rockwell Collins, Inc. | LCD backlight with UV light-emitting diodes and planar reactive element |
KR100628264B1 (ko) * | 2002-09-26 | 2006-09-27 | 엘지.필립스 엘시디 주식회사 | 액정표시장치의 백라이트 유닛 |
TW556028B (en) * | 2003-01-30 | 2003-10-01 | Benq Corp | Modular LED backlight assembly |
US7182480B2 (en) * | 2003-03-05 | 2007-02-27 | Tir Systems Ltd. | System and method for manipulating illumination created by an array of light emitting devices |
TWI321248B (en) * | 2003-05-12 | 2010-03-01 | Au Optronics Corp | Led backlight module |
TW200502640A (en) * | 2003-07-02 | 2005-01-16 | Au Optronics Corp | Back light module |
US7052152B2 (en) * | 2003-10-03 | 2006-05-30 | Philips Lumileds Lighting Company, Llc | LCD backlight using two-dimensional array LEDs |
-
2004
- 2004-01-15 US US10/758,364 patent/US7591563B2/en active Active
- 2004-08-12 TW TW093124230A patent/TWI254820B/zh not_active IP Right Cessation
- 2004-08-30 CN CN200410074895.XA patent/CN1570733B/zh not_active Expired - Fee Related
- 2004-11-10 JP JP2004325957A patent/JP4403052B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20050174318A1 (en) | 2005-08-11 |
CN1570733B (zh) | 2010-04-28 |
CN1570733A (zh) | 2005-01-26 |
TWI254820B (en) | 2006-05-11 |
JP2005203346A (ja) | 2005-07-28 |
TW200523636A (en) | 2005-07-16 |
US7591563B2 (en) | 2009-09-22 |
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