JP4751209B2 - 液晶表示装置及びバックライト装置 - Google Patents
液晶表示装置及びバックライト装置 Download PDFInfo
- Publication number
- JP4751209B2 JP4751209B2 JP2006026202A JP2006026202A JP4751209B2 JP 4751209 B2 JP4751209 B2 JP 4751209B2 JP 2006026202 A JP2006026202 A JP 2006026202A JP 2006026202 A JP2006026202 A JP 2006026202A JP 4751209 B2 JP4751209 B2 JP 4751209B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- guide plate
- light guide
- crystal cell
- backlight
- 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.)
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- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- 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
-
- 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
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
-
- 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
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
-
- 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
- G02F1/133528—Polarisers
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/60—Temperature independent
Description
12 液晶セル
14 バックライト
16 偏光板
18 導光板
20 ランプ
30 大きなドット
32 密領域
34 小さなドット
36 疎領域
38 左下の角部
40 右下の角部
42 左上の角部
44 右上の角部
Claims (2)
- 横長画面サイズの液晶セルと、前記液晶セルの両面に貼り付けられた偏光板と、前記液晶セルの裏面側に配されたバックライトとを有した液晶表示装置において、
前記バックライトは、前記液晶セルに対応する横長形状の導光板と、前記導光板の側部に配されたランプと、前記導光板の裏面側に配された反射板とを有し、
前記導光板の裏面には、複数の大小のドットからなる光分散ドットパターンが形成され、
前記光分散ドットパターンは、前記大きなドットが密に配置された密な領域と、前記小さなドットが疎に配置された疎な領域からなり、
前記導光板の長辺一端の角部近傍から前記長辺の他端の角部近傍に向かって円弧状に伸びる線を境界として、前記疎の領域は前記円弧状に伸びる線の前記長辺側に形成され、前記密な領域は前記円弧状に伸びる線の前記導光板中央側に形成されている
ことを特徴とする液晶表示装置。 - 両面に偏光板が貼り付けられた横長画面サイズの液晶セルを有する液晶表示装置に用いられ、前記液晶セルに対応する横長形状の導光板と、前記導光板の側部に配されたランプと、前記導光板の裏面側に配された反射板とを有したバックライト装置において、
前記導光板の裏面には、複数の大小のドットからなる光分散ドットパターンが形成され、
前記光分散ドットパターンは、前記大きなドットが密に配置された密な領域と、前記小さなドットが疎に配置された疎な領域からなり、
前記導光板の長辺一端の角部近傍から前記長辺の他端の角部近傍に向かって円弧状に伸びる線を境界として、前記疎の領域は前記円弧状に伸びる線の前記長辺側に形成され、前記密な領域は前記円弧状に伸びる線の前記導光板中央側に形成されている
ことを特徴とするバックライト装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006026202A JP4751209B2 (ja) | 2006-02-02 | 2006-02-02 | 液晶表示装置及びバックライト装置 |
TW096101493A TW200739152A (en) | 2006-02-02 | 2007-01-15 | Liquid crystal display device and backlight device |
US11/700,108 US20070182879A1 (en) | 2006-02-02 | 2007-01-31 | Liquid crystal display device and light source device applicable to the same |
KR1020070010375A KR100850607B1 (ko) | 2006-02-02 | 2007-02-01 | 액정 표시 장치 및 백라이트 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006026202A JP4751209B2 (ja) | 2006-02-02 | 2006-02-02 | 液晶表示装置及びバックライト装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007206448A JP2007206448A (ja) | 2007-08-16 |
JP4751209B2 true JP4751209B2 (ja) | 2011-08-17 |
Family
ID=38333683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006026202A Active JP4751209B2 (ja) | 2006-02-02 | 2006-02-02 | 液晶表示装置及びバックライト装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070182879A1 (ja) |
JP (1) | JP4751209B2 (ja) |
KR (1) | KR100850607B1 (ja) |
TW (1) | TW200739152A (ja) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61145979U (ja) * | 1985-03-01 | 1986-09-09 | ||
JPH0621001U (ja) * | 1991-05-13 | 1994-03-18 | 株式会社大門製作所 | 液晶バックライト用導光板 |
JPH06235915A (ja) * | 1993-02-12 | 1994-08-23 | Sharp Corp | 液晶表示装置 |
JPH06242444A (ja) * | 1993-02-17 | 1994-09-02 | Sharp Corp | 液晶用照明装置 |
JPH08220535A (ja) * | 1994-12-16 | 1996-08-30 | Canon Inc | 照明装置及びそれを用いた液晶表示装置 |
JPH08271893A (ja) * | 1995-03-31 | 1996-10-18 | Enplas Corp | サイドライト型面光源装置 |
JPH11231797A (ja) * | 1998-02-10 | 1999-08-27 | Omron Corp | バックライト装置用導光板、バックライト装置およびこのバックライト装置を用いた表示装置 |
JP2003215584A (ja) * | 2002-01-23 | 2003-07-30 | Omron Corp | 面光源装置、拡散板及び液晶表示装置 |
JP2006004915A (ja) * | 2004-05-20 | 2006-01-05 | Seiko Instruments Inc | 照明装置およびこれを用いた表示装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61145979A (ja) * | 1984-12-20 | 1986-07-03 | Toshiba Corp | 双方向catv |
JPH10160938A (ja) | 1996-11-29 | 1998-06-19 | Toshiba Lighting & Technol Corp | 導光ユニット、バックライト及びこれを用いた照明装置 |
US6710829B2 (en) * | 2000-05-03 | 2004-03-23 | Benq Corporation | Method of performing a uniform illumination pattern in a back-light plate using a press |
JP2002333618A (ja) * | 2001-05-07 | 2002-11-22 | Nitto Denko Corp | 反射型液晶表示装置 |
JP3800402B2 (ja) | 2001-08-08 | 2006-07-26 | 株式会社日立製作所 | 液晶表示装置 |
JP2003151330A (ja) | 2001-11-12 | 2003-05-23 | Nidec Copal Corp | フロントライト及びこれを有する電子機器 |
CN1585911A (zh) * | 2001-12-27 | 2005-02-23 | 三星电子株式会社 | 液晶显示装置 |
KR20060008600A (ko) * | 2004-07-21 | 2006-01-27 | 동양산업(주) | 부채살 패턴을 가지는 도광판 및 그 도광판 제조 방법 |
-
2006
- 2006-02-02 JP JP2006026202A patent/JP4751209B2/ja active Active
-
2007
- 2007-01-15 TW TW096101493A patent/TW200739152A/zh unknown
- 2007-01-31 US US11/700,108 patent/US20070182879A1/en not_active Abandoned
- 2007-02-01 KR KR1020070010375A patent/KR100850607B1/ko active IP Right Grant
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61145979U (ja) * | 1985-03-01 | 1986-09-09 | ||
JPH0621001U (ja) * | 1991-05-13 | 1994-03-18 | 株式会社大門製作所 | 液晶バックライト用導光板 |
JPH06235915A (ja) * | 1993-02-12 | 1994-08-23 | Sharp Corp | 液晶表示装置 |
JPH06242444A (ja) * | 1993-02-17 | 1994-09-02 | Sharp Corp | 液晶用照明装置 |
JPH08220535A (ja) * | 1994-12-16 | 1996-08-30 | Canon Inc | 照明装置及びそれを用いた液晶表示装置 |
JPH08271893A (ja) * | 1995-03-31 | 1996-10-18 | Enplas Corp | サイドライト型面光源装置 |
JPH11231797A (ja) * | 1998-02-10 | 1999-08-27 | Omron Corp | バックライト装置用導光板、バックライト装置およびこのバックライト装置を用いた表示装置 |
JP2003215584A (ja) * | 2002-01-23 | 2003-07-30 | Omron Corp | 面光源装置、拡散板及び液晶表示装置 |
JP2006004915A (ja) * | 2004-05-20 | 2006-01-05 | Seiko Instruments Inc | 照明装置およびこれを用いた表示装置 |
Also Published As
Publication number | Publication date |
---|---|
TW200739152A (en) | 2007-10-16 |
US20070182879A1 (en) | 2007-08-09 |
KR100850607B1 (ko) | 2008-08-05 |
KR20070079570A (ko) | 2007-08-07 |
JP2007206448A (ja) | 2007-08-16 |
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