TW200710504A - Light-guide plate of backlight unit - Google Patents
Light-guide plate of backlight unitInfo
- Publication number
- TW200710504A TW200710504A TW094133931A TW94133931A TW200710504A TW 200710504 A TW200710504 A TW 200710504A TW 094133931 A TW094133931 A TW 094133931A TW 94133931 A TW94133931 A TW 94133931A TW 200710504 A TW200710504 A TW 200710504A
- Authority
- TW
- Taiwan
- Prior art keywords
- light
- guide plate
- backlight unit
- focusing
- lens section
- Prior art date
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
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
-
- 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
- G02B6/0013—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
- G02B6/003—Lens or lenticular 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
- G02B6/0035—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
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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
The present invention provides a light-guide plate of backlight unit. The brightness and uniformity of light is improved by forming fine structure on the top and bottom surfaces. The light-guide plate of backlight unit in the present invention is mounted behind a liquid crystal display (LCD) device for guiding the light irradiated from a light source to the LCD device. The light-guide plate is composed of a plate-like material with transparent property. The light-guide plate includes a lens section constituted by a plurality of slots on the bottom surface of the light-guide plate fro scattering the light transmitted through a side surface and focusing to a pre-determined direction; and a focusing section constituted by a plurality of polyhedron-like protrusions protruded beyond the top surface of the light-guide plate for focusing the light scattered by the lens section to an upward direction.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050084734A KR100736075B1 (en) | 2005-09-12 | 2005-09-12 | Light Guide Panel For LCD Back Light Unit |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200710504A true TW200710504A (en) | 2007-03-16 |
TWI277806B TWI277806B (en) | 2007-04-01 |
Family
ID=37940856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094133931A TWI277806B (en) | 2005-09-12 | 2005-09-29 | Light-guide plate of backlight unit |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2007080800A (en) |
KR (1) | KR100736075B1 (en) |
TW (1) | TWI277806B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI457621B (en) * | 2012-02-07 | 2014-10-21 | Chi Lin Optoelectronics Co Ltd | Display device, backlight module, silk screen, light guide plate and method for making a light guide plate |
CN110208895A (en) * | 2019-05-08 | 2019-09-06 | 苏州晶智科技有限公司 | A kind of clapboard and its backlight module for backlight module |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101475045B1 (en) * | 2008-10-07 | 2014-12-23 | 엘지이노텍 주식회사 | Lighting Emblem Assembly with Optical Pattern |
KR101872348B1 (en) | 2011-06-22 | 2018-06-29 | 삼성디스플레이 주식회사 | Light guide plate for backlight unit and manufacturing method thereof |
KR101891167B1 (en) * | 2011-08-11 | 2018-08-23 | 엘지디스플레이 주식회사 | Liquid crystal display device |
CN106402678A (en) * | 2016-08-31 | 2017-02-15 | 深圳天珑无线科技有限公司 | Light-emitting assembly and intelligent terminal |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100383033B1 (en) | 1999-11-13 | 2003-05-09 | 전자부품연구원 | Backlight device for display |
JP2004233957A (en) | 2002-12-05 | 2004-08-19 | Toyota Industries Corp | Optical element, planar lighting device, and liquid crystal display device |
JP2004249369A (en) * | 2003-02-18 | 2004-09-09 | Towa Corp | Cutting method of workpiece and workpiece |
-
2005
- 2005-09-12 KR KR1020050084734A patent/KR100736075B1/en not_active IP Right Cessation
- 2005-09-29 TW TW094133931A patent/TWI277806B/en not_active IP Right Cessation
- 2005-10-04 JP JP2005291426A patent/JP2007080800A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI457621B (en) * | 2012-02-07 | 2014-10-21 | Chi Lin Optoelectronics Co Ltd | Display device, backlight module, silk screen, light guide plate and method for making a light guide plate |
CN110208895A (en) * | 2019-05-08 | 2019-09-06 | 苏州晶智科技有限公司 | A kind of clapboard and its backlight module for backlight module |
Also Published As
Publication number | Publication date |
---|---|
KR100736075B1 (en) | 2007-07-06 |
TWI277806B (en) | 2007-04-01 |
JP2007080800A (en) | 2007-03-29 |
KR20070030011A (en) | 2007-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |