KR101327852B1 - 백라이트 유닛 - Google Patents
백라이트 유닛 Download PDFInfo
- Publication number
- KR101327852B1 KR101327852B1 KR1020070050724A KR20070050724A KR101327852B1 KR 101327852 B1 KR101327852 B1 KR 101327852B1 KR 1020070050724 A KR1020070050724 A KR 1020070050724A KR 20070050724 A KR20070050724 A KR 20070050724A KR 101327852 B1 KR101327852 B1 KR 101327852B1
- Authority
- KR
- South Korea
- Prior art keywords
- diffusion layer
- light
- backlight unit
- liquid crystal
- light source
- 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.)
- Expired - Fee Related
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Classifications
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- 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
-
- 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
- G02F1/133604—Direct backlight with lamps
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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)
- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (6)
- 광을 발생시키는 광원과,상기 광원 상부에 위치되며 광원으로부터의 광을 집광하는 프리즘 시트와,상기 프리즘 시트 상에 위치되어 상기 프리즘 시트로부터의 광을 확산시키며, 베이스 필름 및 상기 베이스 필름의 상, 하부에 각각 형성되어 서로 다른 헤이즈 특성의 범위를 갖는 상부 확산층과 하부 확산층으로 형성된 확산시트를 포함하며,상기 하부 확산층의 헤이즈 특성의 범위가 상기 상부 확산층의 헤이즈 특성의 범위보다 크며, 상기 하부 확산층의 헤이즈 특성의 범위는 45~90%를 갖고, 상부 확산층의 헤이즈 특성의 범위는 10~40%를 갖는 것을 특징으로 하는 백라이트 유닛.
- 삭제
- 삭제
- 제1 항에 있어서, 상기 상부 확산층 또는 하부 확산층은바인더(binder)에 비즈(bead)를 섞어 상기 베이스 필름의 상부 또는 하부에 코팅하여 형성하는 것을 특징으로 하는 백라이트 유닛.
- 제1 항에 있어서, 상기 베이스 필름은 얇고 투명성이 우수한 PET(PolyEthylene Terephthalate) 필름인 것을 특징으로 하는 백라이트 유닛.
- 제1 항에 있어서, 상기 광원과 프리즘 시트 사이에는빛을 확산시키는 확산판을 더 구비하는 것을 특징으로 하는 백라이트 유닛.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070050724A KR101327852B1 (ko) | 2007-05-25 | 2007-05-25 | 백라이트 유닛 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070050724A KR101327852B1 (ko) | 2007-05-25 | 2007-05-25 | 백라이트 유닛 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20080103693A KR20080103693A (ko) | 2008-11-28 |
| KR101327852B1 true KR101327852B1 (ko) | 2013-11-12 |
Family
ID=40288918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020070050724A Expired - Fee Related KR101327852B1 (ko) | 2007-05-25 | 2007-05-25 | 백라이트 유닛 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101327852B1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210034914A (ko) * | 2019-09-23 | 2021-03-31 | 주식회사 엘엠에스 | 지문인식용 광학필름 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101695629B1 (ko) * | 2010-08-24 | 2017-01-16 | 엘지디스플레이 주식회사 | 확산 시트와 이를 포함하는 액정 표시장치의 백라이트 유닛 |
| KR101933141B1 (ko) * | 2016-07-08 | 2018-12-27 | 주식회사 엘엠에스 | 광학시트, 백라이트 유닛, 및 이를 포함하는 디스플레이 장치 |
| KR102735178B1 (ko) * | 2019-12-17 | 2024-11-29 | 삼성디스플레이 주식회사 | 표시 장치 및 이를 포함하는 타일드 표시 장치 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2977454B2 (ja) * | 1994-11-24 | 1999-11-15 | 積水化学工業株式会社 | 液晶表示装置用の画質改善フィルム |
| KR20010099829A (ko) * | 1998-12-18 | 2001-11-09 | 추후제출 | 투과형 스크린 |
| JP2006189883A (ja) | 2005-01-08 | 2006-07-20 | Toray Saehan Inc | 液晶ディスプレイのバックライトユニット用光拡散シート |
| JP2007114409A (ja) | 2005-10-19 | 2007-05-10 | Fujifilm Corp | ディスプレイ用光学シート |
-
2007
- 2007-05-25 KR KR1020070050724A patent/KR101327852B1/ko not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2977454B2 (ja) * | 1994-11-24 | 1999-11-15 | 積水化学工業株式会社 | 液晶表示装置用の画質改善フィルム |
| KR20010099829A (ko) * | 1998-12-18 | 2001-11-09 | 추후제출 | 투과형 스크린 |
| JP2006189883A (ja) | 2005-01-08 | 2006-07-20 | Toray Saehan Inc | 液晶ディスプレイのバックライトユニット用光拡散シート |
| JP2007114409A (ja) | 2005-10-19 | 2007-05-10 | Fujifilm Corp | ディスプレイ用光学シート |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210034914A (ko) * | 2019-09-23 | 2021-03-31 | 주식회사 엘엠에스 | 지문인식용 광학필름 |
| WO2021060708A1 (ko) * | 2019-09-23 | 2021-04-01 | 주식회사 엘엠에스 | 지문인식용 광학필름 |
| KR102250556B1 (ko) * | 2019-09-23 | 2021-05-12 | 주식회사 엘엠에스 | 지문인식용 광학필름 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080103693A (ko) | 2008-11-28 |
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