KR960706047A - 평판 전자 표시장치에 사용되는 배면광 어셈블리 - Google Patents

평판 전자 표시장치에 사용되는 배면광 어셈블리

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Publication number
KR960706047A
KR960706047A KR1019960702321A KR19960702321A KR960706047A KR 960706047 A KR960706047 A KR 960706047A KR 1019960702321 A KR1019960702321 A KR 1019960702321A KR 19960702321 A KR19960702321 A KR 19960702321A KR 960706047 A KR960706047 A KR 960706047A
Authority
KR
South Korea
Prior art keywords
light
microprism
backlight assembly
input surface
output
Prior art date
Application number
KR1019960702321A
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English (en)
Other versions
KR100348734B1 (ko
Inventor
칼 왜인 비슨
스콧 무어 짐머만
폴 미첼 펌
Original Assignee
로저 에이취. 크리스
알라이드 시그날 인코포레이티드
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Application filed by 로저 에이취. 크리스, 알라이드 시그날 인코포레이티드 filed Critical 로저 에이취. 크리스
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • 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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal (AREA)
  • Optical Integrated Circuits (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

본 발명은 광원에서 발생된 광선을 수신하고 총내부 반사에 의해 광선이 전송하는 슬랩 도파관을 포함하는 개선된 배면광 장치에 관한 것이다.
슬랩 도파관이 일면에 부착된 것은 마이크로프리즘 어레이이며, 각 마이크로프리즘은 광 출력면에 평행인 광 입력면 및 도파관 표면에 대하여 수직인 방향으로부터 경사진 각도를 이룬 최소 하나의 측면을 갖으며, 광선은 슬랩 도파관에서 방출되고 경사진 측벽을 반사되며 광출력면에 대하여 실질적을 수직인 광원을 마이크로프리즘으로부터 방출하게 된다.
마이크로프리즘 어레이는 그 마이크로프리즘의 출력을 수신할 수 있는 위치에 놓여 마이크로렌즈로부터 나오는 빛이 실질적으로 보다 수직이도록 한다.
배면광 장치는 평판 전자 표시장치에 대하여 배면광 수단으로 유용하게 사용된다.

Description

평판 전자 표시장치에 사용되는 배면광 어셈블리
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 액정 표시 장치의 일 실시예를 나타내는 횡-단면도, 제2도는 본 발명에 의한 배면광 어셈블리의 일 실시예를 나타내는 전개도; 제3A도는 본 발명의 일 실시예를 나타내는 사시도; 제3B도는 슬랩도파관 상의 마이크로프리즘의 직사각형 배열을 나타내는 평면도; 제3C도는 슬랩 도파관 사의 마이크로프리즘의 육각형 배열을 나타내는 평면도; 제3D도는 나아가 슬랩 도파관 상의 마이크로프리즘의 다른 배열을 나타내는 평면도.

Claims (10)

  1. 화상을 원거리에서 위치하는 관찰자에게 제공할 수 있는 변조 수단을 갖는 표시장치를 (a)광선의 제1원을 광원을 생성하기 위한 광 발생수단; (b) 상기 광 발생 수단으로부터 방출된 광선을 변조 수단의 가시면(viewing plane)에 실질적으로 평행한 방향으로 전송하며, 상기 광 발생 수단에 인접한 제1광 수신면을 갖는 광 전송 수단; (c) 상기 광 전송 수단 및 변조 수단 사이에 위치하며 각 마이크로프리즘은 i) 상기 광 전송수단에 광학적으로 연결된 광 입력면 ⅱ)상기 광 입력면과 평행하고 떨어져서 위치하는 광출력면; 및 ⅲ) 상기 광 입력면과 광 출력면 사이에 접하여 위치하며, 상기 광 전송 수단의 수직변에 대하여 경사각을 이루며, 나아가 상기 입력면으로부터 수신된 상기 광선이 모두 전반사되도록 위치한 제1측벽을 포함하며, 상기 측벽에 의해 내부로 반사되는 광선은 상기 변도 수단에 대하여 실질적으로 수직인 방향으로 광 출력면을 통해 방출하게 되는 상기 측면을 갖는 포함하는 마이크로프리즘 어레이를 포함하는 반사 수단을 포함하는 평판 전사 표시장치에 사용되는 배면광 어셈블리.
  2. 제1항에 있어서, 상기 경사각은 약 25~40˚ 사이의 각임을 특징으로 하는 배면광 어셈블리.
  3. 제1항에 있어서, 나아가 상기 제1측벽에 대향하여 위치한 제2측벽을 포함하며, 상기 관 출력면의 표면적이 상기 광 입력면의 표면적보다 크고 제1 및 제2측벽은 모두 상기 광 전송 수단의 수직면에 대하여 경사각을 형성하며, 나아가 상기 입력면에서 수신한 상기 광선이 모두 반사되도록 위치됨을 특징으로 하는 배면광 어셈블리.
  4. 제3항에 있어서, 상기 광 발생 수단은 나아가 상기 제1광 수신면에 대향하여 위치한 제2광 수신면에 인접한 제2광원을 포함함을 특징으로 하는 배면광 어셈블리.
  5. 제4항에 있어서, 상기 광 발생 수단은 나아가 제3광 수신면에 인접한 제3광원 및 제4광 수신면에 인접한 제4광원을 포함하며, 상기 제3및 제4광 수신면은 일반적으로 상기 제1및 제2광 수신면에 대하여 수직이며, 상기 마이크로프리즘은 나아가 제1및 제2측벽에 대하여 일반적으로 수직이며 상기 광 전송수단의 수직면에 대하여 경사진 각을이룬 제3및 제4측벽을 포함하며, 광 출력 면적이 상기 광 입력 면적보다 큼을 특징으로 하는 배면광 어셈블리.
  6. 제5항에 있어서, 각 각도는 약 25~40˚임을 특징으로 하는 배면광 어셈블리.
  7. 제1항에 있어서, 상기 반사 수단 및 상기 변조 수단 사이에 인접하여 위치한 마이크로렌즈 어레이를 포함하며 각 마이크로프리즘의 광 출력은 상응하는 마이크로렌즈를 항하며, 상기 마이크로렌즈를 통하여 투과된 빛은 상기 변조 수단에 대하여 실질적으로 보다 조준된 광원으로 방출됨을 특징으로 하는 배면광 어셈블리.
  8. 제7항에 있어서, 상기 마이크로프리즘, 마이크로렌즈 및 전송 수단의 굴절률은 약 1.45~1.65임을 가짐을 특징으로 하는 배면광 어셈블리.
  9. 제8항에 있어서, 나아가 마이크로프리즘 사이에 마이크로프리즘의 굴절률보다 작은 굴절률을 갖는 격자간 부분을 포함함을 특징으로 하는 배면광 어셈블리.
  10. 광원으로부터 조준광을 적절하게 제공하기 위하여, (a) 광원으로부터 방출되는 광선을 전송하며, 상기 광원에 인접한 광 전송 수단, (b) 각 마이크로프리즘이 상기 광 전송 수단에 광학적으로 연결된 광 입력면, 상기 광 입력면에 평행하게 원거리에 위치한 광 출력면, 및 상기 입력면에 수신된 상기 광선이 모두 반사되도록 위치한 최소 하나의 측벽을 갖는 마이크로프리즘 배열을 포함하는 상기 광선을 조준하기 위한 반사 수단을 포함하며, 상기 광 전송 수단을 통하여 반사되는 상기 광선은 상기 광 입력면을 통하여 상기 마이크로프리즘에 입사되고 상기 광 출력면에 실질적으로 수직인 방향으로 상기 광 출력면을 통과하여 방출됨을 특징으로 하는 어셈블리.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960702321A 1993-11-05 1994-11-02 평판전자표시장치에사용되는배면광어셈블리 KR100348734B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/149,219 US5396350A (en) 1993-11-05 1993-11-05 Backlighting apparatus employing an array of microprisms
US08/149219 1993-11-05
US08/149,219 1993-11-05
PCT/US1994/012650 WO1995012782A1 (en) 1993-11-05 1994-11-02 Backlighting apparatus employing an array of microprisms

Publications (2)

Publication Number Publication Date
KR960706047A true KR960706047A (ko) 1996-11-08
KR100348734B1 KR100348734B1 (ko) 2002-11-23

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KR1019960702321A KR100348734B1 (ko) 1993-11-05 1994-11-02 평판전자표시장치에사용되는배면광어셈블리

Country Status (16)

Country Link
US (1) US5396350A (ko)
EP (1) EP0727028B1 (ko)
JP (1) JP2706574B2 (ko)
KR (1) KR100348734B1 (ko)
CN (1) CN1097196C (ko)
AT (1) ATE180322T1 (ko)
AU (1) AU1087795A (ko)
CA (1) CA2174528C (ko)
DE (1) DE69418617T2 (ko)
DK (1) DK0727028T3 (ko)
ES (1) ES2132597T3 (ko)
FI (1) FI961880A0 (ko)
GR (1) GR3030897T3 (ko)
SG (1) SG47942A1 (ko)
TW (1) TW259861B (ko)
WO (1) WO1995012782A1 (ko)

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DE69418617D1 (de) 1999-06-24
FI961880A (fi) 1996-05-03
EP0727028B1 (en) 1999-05-19
EP0727028A1 (en) 1996-08-21
SG47942A1 (en) 1998-04-17
CN1097196C (zh) 2002-12-25
DE69418617T2 (de) 2000-02-03
DK0727028T3 (da) 1999-11-08
CA2174528C (en) 2006-07-11
TW259861B (ko) 1995-10-11
CA2174528A1 (en) 1995-05-11
KR100348734B1 (ko) 2002-11-23
ES2132597T3 (es) 1999-08-16
CN1136349A (zh) 1996-11-20
US5396350A (en) 1995-03-07
FI961880A0 (fi) 1996-05-03
WO1995012782A1 (en) 1995-05-11
AU1087795A (en) 1995-05-23
GR3030897T3 (en) 1999-11-30
JPH08511129A (ja) 1996-11-19
ATE180322T1 (de) 1999-06-15
JP2706574B2 (ja) 1998-01-28

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