KR100701076B1 - 액정표시장치용 백 라이트 유닛 - Google Patents
액정표시장치용 백 라이트 유닛 Download PDFInfo
- Publication number
- KR100701076B1 KR100701076B1 KR1020030050117A KR20030050117A KR100701076B1 KR 100701076 B1 KR100701076 B1 KR 100701076B1 KR 1020030050117 A KR1020030050117 A KR 1020030050117A KR 20030050117 A KR20030050117 A KR 20030050117A KR 100701076 B1 KR100701076 B1 KR 100701076B1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- liquid crystal
- lamp
- backlight unit
- photoconductor
- 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 - Lifetime
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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
- G02F1/133604—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
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)
Abstract
Description
Claims (5)
- 지지대와 다량의 선형의 광속을 방출하는 램프를 포함하는 액정표시장치용 백 라이트 유닛에 있어서,상기 램프이 내장되도록 개구부를 갖는 "U"자관 형상의 제 1 반사판과,상기 제 1 반사판과 일측과 결합되며 타측이 지지대의 상부와 결합되어 도광판과 연결되는 "U"자형 나팔 모양으로 형성되며 전반사 특성을 가져 상기 램프에서 방출되는 선형의 광을 확산시키는 광유도체와,상기 광유도체에서 확산된 선형의 광을 입사시켜 전면에 확산시키는 것에 의해 면형의 광으로 변환시켜 액정패널로 출력하는 도광판과,상기 도광판에서 출력되는 면형 광 중 상기 액정패널 쪽으로 향하지 않는 것을 상기 액정패널 쪽으로 향하게 반사시키는 제 2 반사판을 포함하는 액정표시장치용 백 라이트 유닛.
- 제 1 항에 있어서, 상기 광유도체가 전반사 특성을 갖는 PMMA로 형성되는 액정표시장치용 백 라이트 유닛.
- 제 1 항에 있어서, 상기 광유도체는 표면에 광의 누설을 방지하는 반사시트가 형성된 액정표시장치용 백 라이트 유닛.
- 제 1 항에 있어서, 상기 광유도체는 내부에 요철 또는 프리즘 형상의 경계면으로 이루어진 적어도 1개 이상의 난반사패턴을 포함하는 액정표시장치용 백 라이트 유닛.
- 제 4 항에 있어서, 상기 난반사패턴은 이색사출법 또는 초음파 융착법에 의해 형성된 액정표시장치용 백 라이트 유닛.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030050117A KR100701076B1 (ko) | 2003-07-22 | 2003-07-22 | 액정표시장치용 백 라이트 유닛 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030050117A KR100701076B1 (ko) | 2003-07-22 | 2003-07-22 | 액정표시장치용 백 라이트 유닛 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20050011144A KR20050011144A (ko) | 2005-01-29 |
| KR100701076B1 true KR100701076B1 (ko) | 2007-03-29 |
Family
ID=37223244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020030050117A Expired - Lifetime KR100701076B1 (ko) | 2003-07-22 | 2003-07-22 | 액정표시장치용 백 라이트 유닛 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100701076B1 (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI282017B (en) * | 2004-05-28 | 2007-06-01 | Epistar Corp | Planar light device |
-
2003
- 2003-07-22 KR KR1020030050117A patent/KR100701076B1/ko not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050011144A (ko) | 2005-01-29 |
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