KR101966818B1 - 광학 필름 및 이를 포함하는 표시 장치 - Google Patents
광학 필름 및 이를 포함하는 표시 장치 Download PDFInfo
- Publication number
- KR101966818B1 KR101966818B1 KR1020150128358A KR20150128358A KR101966818B1 KR 101966818 B1 KR101966818 B1 KR 101966818B1 KR 1020150128358 A KR1020150128358 A KR 1020150128358A KR 20150128358 A KR20150128358 A KR 20150128358A KR 101966818 B1 KR101966818 B1 KR 101966818B1
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- KR
- South Korea
- Prior art keywords
- liquid crystal
- layer
- wavelength
- crystal layer
- optical film
- 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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Images
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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13718—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a change of the texture state of a cholesteric liquid crystal
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- 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
- G02F2202/00—Materials and properties
- G02F2202/13—Materials and properties photorefractive
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
Description
도 2는, CLC의 설명을 위한 예시적인 도면이다.
도 3 내지 10은 예시적인 광학 필름을 나타내는 도면이다.
도 11은, 예시적인 표시 장치를 나타내는 도면이다.
정면 색좌표 변화율 | 경사각 70° 색좌표 변화율 | |
실시예 1 | 100% | 130% |
비교예 1 | 100% | 200% |
P: 피치
X: 나선축
10, 30, 40, 50, 60, 70, 80, 90, 100: 광학 필름
110, 310, 410, 510,610, 710, 810, 910, 101: 1/4 파장층
120, 320, 420, 520, 620, 720, 820, 920, 102: 제 1 액정층
130, 330, 430, 530, 630, 730, 830, 930, 103: 제 2 액정층
740: 기재층
850: 배향막, 프라이머층 또는 점착층
960: 보호층
107: 표면처리층
110: 표시 장치
1101: 상부 편광판
1102: 표시 패널
1103: 하부 편광판
1104: 광원
Claims (20)
원반상의 디스코틱 액정화합물의 도파기 또는 막대상의 네마틱 액정화합물의 도파기가 이루는 나선축이 제 1 또는 제 2 액정층의 두께 방향과 평행을 이루는 광학 필름.
1/4 파장층은 원반상의 디스코틱 액정화합물 또는 막대상의 네마틱 액정화합물을 포함하는 광학 필름.
1/4 파장층 및 제 1 액정층이 각각 원반상의 디스코틱 액정화합물을 포함하거나, 또는 1/4 파장층 및 제 1 액정층이 각각 막대상의 네마틱 액정화합물을 포함하는 광학 필름.
제 1 액정층은 두께가 2 ㎛ 내지 5 ㎛ 범위 내인 광학 필름.
제 2 액정층은 두께가 4 ㎛ 내지 7 ㎛ 범위 내인 광학 필름.
제 1 및 제 2 액정층의 사이에 배향막, 프라이머층 또는 점착제층을 추가로 포함하는 광학 필름.
제 2 액정층의 상부에 헤이즈가 50% 이하인 보호층을 추가로 포함하는 광학 필름.
제 2 액정층의 상부에 표면 처리층을 추가로 포함하고, 상기 표면 처리층은 SG(Semi-glare)층, 고굴절 물질을 포함하는 층 및 저굴절 물질을 포함하는 층 중 하나 이상을 포함하는 광학 필름.
제 1 및 제 2 액정층 중 하나 이상의 액정층은 헤이즈 성분을 추가로 포함하는 광학 필름.
1/4 파장층의 하부에 기재층을 추가로 포함하는 광학 필름.
표시 장치는 표시 패널 및 상기 표시 패널의 일측에 배치된 광원을 포함하고, 광학 필름은 상기 표시 패널 및 광원의 사이에 배치되어 있는 표시 장치.
광학 필름은, 제 2 액정층이 1/4 파장층에 비하여 광원에 인접하게 위치하도록 배치되어 있는 표시 장치.
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