KR20160083393A - Norbornene optical film, and method for manufacturing the same - Google Patents

Norbornene optical film, and method for manufacturing the same Download PDF

Info

Publication number
KR20160083393A
KR20160083393A KR1020140194457A KR20140194457A KR20160083393A KR 20160083393 A KR20160083393 A KR 20160083393A KR 1020140194457 A KR1020140194457 A KR 1020140194457A KR 20140194457 A KR20140194457 A KR 20140194457A KR 20160083393 A KR20160083393 A KR 20160083393A
Authority
KR
South Korea
Prior art keywords
film
norbornene
optical film
stretching
transverse
Prior art date
Application number
KR1020140194457A
Other languages
Korean (ko)
Other versions
KR101662912B1 (en
Inventor
이호준
김경수
김용원
하선영
김영수
강혁모
Original Assignee
주식회사 효성
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 효성 filed Critical 주식회사 효성
Priority to KR1020140194457A priority Critical patent/KR101662912B1/en
Publication of KR20160083393A publication Critical patent/KR20160083393A/en
Application granted granted Critical
Publication of KR101662912B1 publication Critical patent/KR101662912B1/en

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/30Polarising elements
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/30Polarising elements
    • G02B5/3008Polarising elements comprising dielectric particles, e.g. birefringent crystals embedded in a matrix
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/30Polarising elements
    • G02B5/3025Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks

Abstract

The present invention relates to a norbornene optical film and a method for manufacturing the same, capable of manufacturing an optical film to stretch a norbornene resin film in a vertical direction and a horizontal direction in a successive two-axis. The present invention relates to the norbornene optical film and the method for manufacturing the samem capable of achieving a predetermined film width by being stretched in the horizontal direction and improving mechanical properties of the film, or dimensional stability by being stretched in the vertical direction. A retardation value (Re) of the inside of the film is 10-100nm. A retardation value (Rth) of a thickness direction is 100-300nm. A result of Rth/Re is 1-5. The present invention can correspond to a film width which is 1,980mm or more by being stretched in the vertical direction and can improve the mechanical properties of the film and the dimensional stability in the vertical direction.

Description

노보넨계 광학 필름, 및 이의 제조방법{NORBORNENE OPTICAL FILM, AND METHOD FOR MANUFACTURING THE SAME}TECHNICAL FIELD The present invention relates to a norbornene-based optical film and a method for producing the same,

본 발명은, 노보넨계 광학 필름, 및 이의 제조방법에 관한 것이다.The present invention relates to a norbornene-based optical film and a method for producing the same.

대면적 TV 개발에 따른 광학 필름 수율이 중요시 되면서, 편광판 Maker의 최종 필름의 초광폭화 니즈(Needs)가 커지고 있다. 최근에는 필름 폭 1,980mm을 넘어 2,260mm의 광학 필름이 출시되고 있다.As optical film yields become more important due to the development of large-area TVs, the need for ultra-wide bandwidth of the final film of the polarizer maker is increasing. In recent years, optical films of 2,260 mm have been released beyond the film width of 1,980 mm.

필름 폭을 결정하는 요소는 연신율이다. 횡연신을 통해 폭을 넓힐 수 있지만, 연신 공정에 의한 고분자 배향은 필름의 광학 및 기계적 물성에도 영향을 미치기 때문에 필름 폭과 물성을 동시에 만족시키는 것이 핵심 기술이다.The factor determining the film width is the elongation. The width can be widened by transverse stretching. However, since the polymer orientation by the stretching process affects the optical and mechanical properties of the film, it is a key technology to simultaneously satisfy the film width and physical properties.

Belt-type의 Solvent Casting을 통한 Norbornene 계열 VA 위상차 필름의 경우, 횡연신을 통해 1,980mm 폭 대응이 가능하다. 120%~125% 연신율에서 Target 위상차에 도달하며, 기타 물성도 제어 가능 구간에 있기 때문이다. 하지만, 2,260mm 폭 대응은 불가능한데, 이는 130% 이상의 연신율에서 Target 위상차 제어가 불가능하기 때문이다.Norbornene series VA phase retardation film through belt-type solvent casting can support 1,980mm width by transverse stretching. It reaches the target phase difference at 120% ~ 125% elongation, and other properties can be controlled. However, the 2,260 mm width can not be achieved because the target phase difference control is impossible at an elongation of 130% or more.

따라서, 폭 1,980mm 이상에서도, 위상차, 기계적 특성 등 광학 필름으로서의 물성이 발현되도록 하는 노보넨계 광학 필름 제조방법에 관한 기술이 요구되고 있다.Accordingly, there is a demand for a technique for producing a norbornene-based optical film that exhibits physical properties such as retardation and mechanical properties, such as optical films, even at a width of 1,980 mm or more.

본 발명은 상술한 종래기술의 문제점을 해결하고, 종방향 연신을 통해 필름 폭 1,980mm 이상 대응이 가능하며, 종방향의 기계적 물성 및 치수안정성을 개선할 수 있는 노보넨계 광학 필름의 제조방법, 및 이에 의해 제조된 노보넨계 광학 필름을 제공한다.Disclosure of the Invention The present invention is directed to a process for producing a norbornene-based optical film capable of solving the above-described problems of the prior art and capable of coping with a film width of 1,980 mm or more through longitudinal stretching and improving mechanical properties and dimensional stability in the longitudinal direction, Thereby providing a norbornene-based optical film produced thereby.

본 발명은 종래기술의 문제점을 해결하기 위해 안출된 것으로서,The present invention has been made to solve the problems of the prior art,

노보넨계 수지 필름을 종방향과 횡방향에 순차 2축 연신하는 광학 필름을 제조하는 방법이며, 횡방향 연신으로 소정의 필름 폭을 달성하고, 종방향 연신으로 필름의 기계적 물성, 또는 치수안정성 개선을 달성하는 것을 특징으로 하는 노보넨계 광학 필름의 제조 방법을 제공한다.A method for producing an optical film in which a norbornene resin film is sequentially biaxially stretched in a machine direction and a transverse direction, characterized in that a predetermined film width is achieved by transverse stretching and mechanical properties or dimensional stability of the film is improved by longitudinal stretching Based on the total weight of the norbornene-based optical film.

또한 본 발명에 있어서, 상기 소정의 필름 폭은 1,980mm 이상인 것을 특징으로 하는 노보넨계 광학 필름의 제조 방법을 제공한다.The present invention also provides a process for producing a norbornene-based optical film, wherein the predetermined film width is 1,980 mm or more.

또한 본 발명에 있어서, 종방향의 연신 배율과 횡방향의 연신 배율의 비가, 종방향 연신 배율 : 횡방향 연신 배율 = 0.5 ~ 1.0인 노보넨계 광학 필름의 제조 방법을 제공한다.In the present invention, there is also provided a process for producing a norbornene-based optical film having a ratio of a longitudinal stretching ratio to a transverse stretching ratio and a longitudinal stretching ratio: transverse stretching ratio of 0.5 to 1.0.

또한 본 발명에 있어서, 횡방향 연신 배율이 1.1 내지 1.5배인 것을 특징으로 하는 노보넨계 광학 필름의 제조 방법을 제공한다.In the present invention, there is also provided a process for producing a norbornene-based optical film characterized by having a transverse stretching ratio of 1.1 to 1.5.

또한, 본 발명의 제조 방법에 의해 제조되고, 필름의 면내의 리터데이션치(Re)는 10~100 nm이고, 두께 방향의 리터데이션치(Rth)는 100~300 nm이며, Rth/Re는 1 내지 5인 노보넨계 광학 필름을 제공한다.The retardation value (Re) in the plane of the film is 10 to 100 nm, the retardation value (Rth) in the thickness direction is 100 to 300 nm, and Rth / Re is 1 To 5% by weight of the norbornene-based optical film.

본 발명은, 종방향 연신을 통해 필름 폭 1,980mm 이상 대응이 가능하며, 종방향의 기계적 물성 및 치수안정성을 개선할 수 있는 효과가 있다.According to the present invention, it is possible to cope with a film width of 1,980 mm or more through longitudinal stretching, and it is possible to improve longitudinal mechanical properties and dimensional stability.

이하, 본 발명에 대하여 상세히 설명한다.
Hereinafter, the present invention will be described in detail.

본 발명은,According to the present invention,

노보넨계 수지 필름을 종방향과 횡방향에 순차 2축 연신하는 광학 필름을 제조하는 방법이며, 횡방향 연신으로 소정의 필름 폭을 달성하고, 종방향 연신으로 필름의 기계적 물성, 또는 치수안정성 개선을 달성하는 것을 특징으로 하는 노보넨계 광학 필름의 제조 방법이다.A method for producing an optical film in which a norbornene resin film is sequentially biaxially stretched in a machine direction and a transverse direction, characterized in that a predetermined film width is achieved by transverse stretching and mechanical properties or dimensional stability of the film is improved by longitudinal stretching Based on the total weight of the norbornene-based optical film.

종방향과 횡방향에 순차 2축 연신하는 순서는 특별히 제한되지 않으며, 당해 기술분야의 통상의 지식을 가진 자가 공정 상황이나 제품 니즈 등을 고려하여 조절할 수 있다.The sequence of successive biaxial stretching in the longitudinal direction and the transverse direction is not particularly limited, and a person having ordinary knowledge in the technical field can adjust it in consideration of process conditions, product needs, and the like.

즉, Casting → 종방향 연신 → 고분자 종방향으로 우선 배향 → 횡방향 연신 → 고분자 횡방향으로 배향하거나(제1방법), Casting → 횡방향 연신 → 고분자 횡방향으로 배향 → 종방향 연신 → 고분자 횡배향 완화(제2방법)을 사용할 수 있다.That is, it is preferable to use a method of casting, longitudinally stretching, preferentially oriented in a polymer longitudinal direction, transverse stretching, transverse direction (first method), or casting to transverse stretching in a polymer transverse direction to longitudinal stretching in a polymer transverse direction Mitigation (second method) can be used.

종방향과 횡방향의 연신의 시퀀스는 임의적으로 당해 기술분야 통상의 지식을 가진 자가 선택할 수 있지만, 종방향 연신 후 횡방향 연신하면, 최종 배향이 횡방향이므로, 공정상 광축 제어에 보다 유리할 수 있고, 반대로 횡방향 연신 후 종방향 연신하면, 최종 배향이 종방향이므로, 공정상 광축 제어에 다소 불리할 수 있기 때문에, 종방향 연신 후 횡방향 연신하는 것이 보다 유리할 수 있다.Although the longitudinal and transverse stretching sequences may be arbitrarily selected by those skilled in the art, longitudinal stretching after longitudinal stretching may be more beneficial for controlling the optical axis in the process, since the final orientation is transverse . On the contrary, when longitudinal stretching is performed after transverse stretching, since the final orientation is the longitudinal direction, it may be somewhat disadvantageous to the optical axis control in the process. Therefore, it may be more advantageous to longitudinal stretch after longitudinal stretching.

또한, 횡연신 공정 후에 횡연신 비율을 완화하는 공정를 설치하면 좋다. 완화 공정은, 횡연신 공정 후에 마련하면 자주(잘), 회수등의 제한은 없다.완화 공정를 설치함으로써, 광학 축 각도의 불균일을 감소시킬 수 있다.Further, a step of reducing the transverse stretching ratio after the transverse stretching step may be provided. The relaxation process is not limited by the provision of the transverse stretching process, and there is no limitation on the number of recovery, etc. By providing the relaxation process, the unevenness of the optical axis angle can be reduced.

본 발명에 있어서, 종방향 연신은 기계적 물성인 종방향 모듈러스를 향상시키고, 치수안전성을 개선하는 역할을 한다.In the present invention, the longitudinal stretching improves the longitudinal modulus, which is a mechanical property, and improves the dimensional stability.

종방향의 연신에는 롤 사이 연신, 압연 연신등을, 횡방향의 연신에는 텐터 등을 사용할 수도 있다. 텐터의 레일 열림각은 10도 이내, 바람직하게는 5도 이내로 하는 것이 좋다.레일 열림각을 좁고함으로써, 횡연신 때에 생기는 보잉 현상을 억제할 수 있고 광학 축 각도 분포의 불균일을 감소 할 수 있다.In longitudinal stretching, roll-to-roll stretching, rolling stretching and the like may be used. In the transverse stretching, a tenter may be used. The rail opening angle of the tenter is preferably set to 10 degrees or less, preferably 5 degrees or less. By narrowing the rail opening angle, it is possible to suppress the bowing phenomenon occurring at the time of transverse drawing and reduce unevenness in the optical axis angular distribution.

상기 소정의 필름 폭은 1,980mm 이상인 것을 특징으로 한다.And the predetermined film width is 1,980 mm or more.

연신 배율은, 종방향은1 ~ 5배, 바람직하지는1 ~ 2배, 특히 바람직하게는 1.1 ~ 1.5배이다.또, 횡방향은 1 ~ 5배, 바람직하지는 1 ~ 2배, 특히 바람직하게는 1.1 ~ 1.5배이다. 종방향의 연신 배율과 횡방향의 연신 배율의 비는, 종방향 연신 배율/횡연신배율 = 0.2 ~ 5.0이며, 바람직하게는 0.3 ~ 3.0, 특히 바람직하게는 0.5 ~ 1.0이다.
The stretching magnification is 1 to 5 times, preferably 1 to 2 times, particularly preferably 1.1 to 1.5 times in the longitudinal direction. The transverse direction is 1 to 5 times, preferably 1 to 2 times, 1.1 to 1.5 times. The ratio of the longitudinal stretching magnification to the transverse stretching magnification is from 0.2 to 5.0, preferably from 0.3 to 3.0, and particularly preferably from 0.5 to 1.0.

본 발명의 노르보넨계 필름은, 하기 화학식 1로 표현되는 반복단위를 포함하는 것일 수 있다.The norbornene-based film of the present invention may contain a repeating unit represented by the following general formula (1).

[화학식 1][Chemical Formula 1]

Figure pat00001
Figure pat00001

여기서, R1은, 수소, 또는 탄소수 1 내지 2의 알콕시로 치환된 포르밀기이고, R2는, 탄소수 4 이상의 알콕시로 치환된 포르밀기, 또는 아세톡시 메틸기이며, m, 및 n은, 각각, 1 이상의 정수이다. Wherein R 1 is hydrogen or a formyl group substituted with alkoxy of 1 to 2 carbon atoms, R 2 is a formyl group substituted with alkoxy having 4 or more carbon atoms, or acetoxymethyl group, m and n are each a hydrogen atom, Lt; / RTI >

상기 반복 단위는, 연신성 향상 모노머(B)와 중합성 향상 모노머(M)로 구성된 것으로서, 예시하면 아래 그림과 같이 표현될 수 있다.The repeating unit is composed of a stretching property improving monomer (B) and a polymerizing property improving monomer (M).

Figure pat00002
Figure pat00002

상기 연신성 향상 모노머(B)는, 하기 화학식 2 내지 3에서 선택되는 1종 이상의 것을 사용할 수 있다.As the drawability improving monomer (B), at least one selected from the following formulas (2) to (3) can be used.

[화학식 2](2)

Figure pat00003
Figure pat00003

[화학식 3](3)

Figure pat00004
Figure pat00004

[화학식 4][Chemical Formula 4]

Figure pat00005
Figure pat00005

[화학식 5][Chemical Formula 5]

Figure pat00006
Figure pat00006

상기 노르보넨계 수지의 분자량은 350,000 내지 600,000g/mol 인 것이 바람직하다. 분자량 350,000g/mol 미만이거나 분자량 600,000g/mol 초과에서는 고형분 함량 증가 혹은 감소에 의한 공정 및 잔류용제 제어에 어려움이 있을 수 있다. The molecular weight of the norbornene resin is preferably 350,000 to 600,000 g / mol. When the molecular weight is less than 350,000 g / mol, or when the molecular weight is more than 600,000 g / mol, it may be difficult to control the process and residual solvent by increasing or decreasing the solid content.

상기 연신성 향상 모노머(B) : 중합성 향상 모노머(M) = 5.5 : 4.5 ~ 7.5 : 2.5 몰 공중합 비율인 것이 바람직하다.
And the copolymerization ratio is preferably 5.5: 4.5 to 7.5: 2.5: 2.5 in terms of the extensibility improving monomer (B): polymerizing property improving monomer (M).

본 발명의 다른 측면은, 상술한 본 발명의 제조 방법에 의해 제조된 광학 필름이다.Another aspect of the present invention is an optical film produced by the manufacturing method of the present invention described above.

본 발명의 광학 필름은, 폭은 1,980mm 이상이면서도, 필름의 면내의 리터데이션치(Re)는 10~100nm이고, 두께 방향의 리터데이션치(Rth)는 100~300nm이며, Rth/Re는 1 내지 5의 광학적 수치를 만족할 수 있다,
The optical film of the present invention has a retardation value (Re) in the plane of the film of 10 to 100 nm, a retardation value (Rth) in the thickness direction of 100 to 300 nm, a Rth / Re value of 1 To < RTI ID = 0.0 > 5, < / RTI >

이하, 본 발명에 대하여 실시예를 들어 보다 더 상세히 설명한다. 이하의 실시예는 발명의 상세한 설명을 위한 것일 뿐, 이에 의해 권리범위를 제한하려는 의도가 아님을 분명히 한다.
Hereinafter, the present invention will be described in more detail by way of examples. It is to be understood that the following embodiments are for the purpose of illustration only and are not intended to limit the scope of the present invention.

실시예Example

실시예Example 1 One

(횡방향 연신 → 종방향 연신)(Transverse stretching → longitudinal stretching)

아래와 같은 조건으로, 광학 보상 필름을 제작하였다.An optical compensation film was produced under the following conditions.

* 공정 : Silica 고압 분산 → Silica Dope Mixing → 제막 (습도 30% 이하) → P/D (95℃) → 연신전 두께 (70um) → 종방향 연신 (115%) → 횡방향 연신 (140%) → 권취 (제품 두께 43.5um) (※ 잔류용제 10% 이하 박리, 잔류용제 실질적으로 0% 연신)* Process: Silica Dope Mixing → Silica Dope Mixing → Drying (humidity less than 30%) → P / D (95 ℃) → Thickness before stretching (70um) → longitudinal stretching (115%) → transverse stretching (140%) → Winding (product thickness 43.5um) (※ 10% or less of residual solvent is peeled off, residual solvent is practically 0%)

* 필름 대응 가능 폭 : 2,260mm* Suitable for film width: 2,260mm

* Recipe : ANB (B : M = 6 : 4) + Irganox계 첨가제(전체 중량 대비 15wt%) + Silica(3000ppm)
* Recipe: ANB (B: M = 6: 4) + Irganox additive (15wt% of total weight) + Silica (3000ppm)

실시예Example 2 2

(종방향 연신 → 횡방향 연신)(Longitudinal stretching → transverse stretching)

아래와 같은 조건으로, 광학 보상 필름을 제작하였다.An optical compensation film was produced under the following conditions.

* 공정 : Silica 고압 분산 → Silica Dope Mixing → 제막 (습도 30% 이하) → P/D (95℃) → 연신전 두께 (73um) → 횡방향 연신 (140%) → 종방향 연신 (115%) → 권취 (제품 두께 45.5um) (※ 잔류용제 10% 이하 박리, 잔류용제 실질적으로 0% 연신)* Process: Silica Dope Mixing → Silica Dope Mixing → Drying (humidity less than 30%) → P / D (95 ℃) → Thickness before stretching (73um) → Transverse stretching (140%) → Longitudinal stretching (115%) → Winding (product thickness 45.5um) (※ 10% or less of residual solvent is peeled off, residual solvent is practically 0%)

* 필름 대응 가능 폭 : 2,260mm* Suitable for film width: 2,260mm

* Recipe : ANB (B : M = 6 : 4) + Irganox계 첨가제(전체 중량 대비 15wt%) + Silica(3000ppm)
* Recipe: ANB (B: M = 6: 4) + Irganox additive (15wt% of total weight) + Silica (3000ppm)

비교예Comparative Example

(횡방향 연신만 하였음)(Transverse stretching only)

아래와 같은 조건으로, 광학 보상 필름을 제작하였다.An optical compensation film was produced under the following conditions.

* 공정 : Silica 고압 분산 → Silica Dope Mixing → 제막 (습도 30% 이하) → P/D (95℃) → 연신전 두께 (50um) → 횡방향 연신 (125%) → 권취 (제품 두께 40.0um) (※ 잔류용제 10% 이하 박리, 잔류용제 실질적으로 0% 연신) * Process: Silica Dope Mixing → Silica Dope Mixing → Drying (humidity less than 30%) → P / D (95 ℃) → Thickness before stretching (50um) → Transverse stretching (125%) → Coiling ※ 10% or less of residual solvent is removed, residual solvent is practically 0%)

필름 대응 가능 폭 : 1,980mm (2,260mm 대응 불가능)Available for film width: 1,980mm (2,260mm is not applicable)

* Recipe : ANB (B : M = 6 : 4) + Irganox계 첨가제(전체 중량 대비 15wt%) + Silica(3000ppm)
* Recipe: ANB (B: M = 6: 4) + Irganox additive (15wt% of total weight) + Silica (3000ppm)

실험예Experimental Example

상기 실시예 1, 실시예 2, 및 비교예에 대해서 기계적 물성, 치수안정성 등을 측정하였다.Mechanical properties and dimensional stability were measured for Examples 1, 2 and Comparative Examples.

결과는 하기 표 1과 같았다.The results are shown in Table 1 below.

Figure pat00007
Figure pat00007

Claims (5)

노보넨계 수지 필름을 종방향과 횡방향에 순차 2축 연신하는 광학 필름을 제조하는 방법이며, 횡방향 연신으로 소정의 필름 폭을 달성하고, 종방향 연신으로 필름의 기계적 물성, 또는 치수안정성 개선을 달성하는 것을 특징으로 하는 노보넨계 광학 필름의 제조 방법.A method for producing an optical film in which a norbornene resin film is sequentially biaxially stretched in a machine direction and a transverse direction, characterized in that a predetermined film width is achieved by transverse stretching and mechanical properties or dimensional stability of the film is improved by longitudinal stretching Based on the total weight of the norbornene-based optical film. 청구항 1에 있어서, 상기 소정의 필름 폭은 1,980mm 이상인 것을 특징으로 하는 노보넨계 광학 필름의 제조 방법.The method for producing a norbornene-based optical film according to claim 1, wherein the predetermined film width is 1,980 mm or more. 청구항 1에 있어서, 종방향의 연신 배율과 횡방향의 연신 배율의 비가, 종방향 연신 배율 : 횡방향 연신 배율 = 0.5 ~ 1.0인 노보넨계 광학 필름의 제조 방법.The method for producing a norbornene-based optical film according to claim 1, wherein a ratio of a longitudinal stretching ratio to a transverse stretching ratio is a longitudinal stretching ratio: a transverse stretching ratio of 0.5 to 1.0. 청구항 1에 있어서, 횡방향 연신 배율이 1.1 내지 1.5배인 것을 특징으로 하는 노보넨계 광학 필름의 제조 방법.The method for producing a norbornene-based optical film according to claim 1, wherein the transverse stretching magnification is 1.1 to 1.5 times. 청구항 1 내지 4의 어느 한 청구항의 제조 방법에 의해 제조되고, 필름의 면내의 리터데이션치(Re)는 10~100 nm이고, 두께 방향의 리터데이션치(Rth)는 100~300 nm이며, Rth/Re는 1 내지 5인 노보넨계 광학 필름.The film according to any one of claims 1 to 4, wherein the retardation value (Re) in the plane of the film is 10 to 100 nm, the retardation value (Rth) in the thickness direction is 100 to 300 nm, / Re is from 1 to 5. < tb > < TABLE >
KR1020140194457A 2014-12-30 2014-12-30 Norbornene optical film, and method for manufacturing the same KR101662912B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140194457A KR101662912B1 (en) 2014-12-30 2014-12-30 Norbornene optical film, and method for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140194457A KR101662912B1 (en) 2014-12-30 2014-12-30 Norbornene optical film, and method for manufacturing the same

Publications (2)

Publication Number Publication Date
KR20160083393A true KR20160083393A (en) 2016-07-12
KR101662912B1 KR101662912B1 (en) 2016-10-06

Family

ID=56504944

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140194457A KR101662912B1 (en) 2014-12-30 2014-12-30 Norbornene optical film, and method for manufacturing the same

Country Status (1)

Country Link
KR (1) KR101662912B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0583483B2 (en) * 1984-01-27 1993-11-26 Sued Chemie Ag
JP2007332191A (en) * 2006-06-12 2007-12-27 Fujifilm Corp Cellulose derivative, polymer composition and cellulosic film modifier containing the same, and cellulosic film, polarized plate-protecting film, liquid crystal display device, and silver halide photographic sensitizer each using them
JP2011013680A (en) * 2010-07-26 2011-01-20 Nitto Denko Corp Method for producing optical compensation film and method for producing polarizing plate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013118172A1 (en) * 2012-02-08 2013-08-15 コニカミノルタ株式会社 Method for producing long stretched film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0583483B2 (en) * 1984-01-27 1993-11-26 Sued Chemie Ag
JP2007332191A (en) * 2006-06-12 2007-12-27 Fujifilm Corp Cellulose derivative, polymer composition and cellulosic film modifier containing the same, and cellulosic film, polarized plate-protecting film, liquid crystal display device, and silver halide photographic sensitizer each using them
JP2011013680A (en) * 2010-07-26 2011-01-20 Nitto Denko Corp Method for producing optical compensation film and method for producing polarizing plate

Also Published As

Publication number Publication date
KR101662912B1 (en) 2016-10-06

Similar Documents

Publication Publication Date Title
US9939554B2 (en) Wide-view optical film having reversed wavelength dispersion
WO2009060944A1 (en) Biaxially stretched polypropylene film for capacitor, deposition-coated film obtained from the same, and capacitor employing the same
KR101322175B1 (en) Transparent polyamide films
WO2015094677A1 (en) Optical films containing optical retardation-enhancing additive
KR101889078B1 (en) Optical film and polarization plate comprising the same
US20190255757A1 (en) Resin film, conductive film and method for producing these films
KR101662912B1 (en) Norbornene optical film, and method for manufacturing the same
KR20140064886A (en) Phase difference film and liquid crystal display device provided with same
KR101494545B1 (en) resin composition and optical film having anti-wavelength dispersibility comprising the same
JP5581560B2 (en) Optical film and IPS mode liquid crystal display device
CN103459490B (en) Blooming resin combination and use the blooming of this resin combination
TWI770162B (en) Liquid crystal alignment film and method for producing the same
TWI527849B (en) Cellulose triacetate films with low birefringence
US11661481B2 (en) Polyimide film and flexible display panel including the same
KR101618430B1 (en) Norbornene-based retardation film, and polarizing plate and display device using the same
KR101629076B1 (en) Norbornene-based retardation film, and polarizing plate and display device using the same
KR101838498B1 (en) Polarizer protective film with excellent thickness uniformity
KR101150290B1 (en) Resin composition for optical film and optical film comprising the same
KR20130135668A (en) Optical film having improved storage stability at a low temperature and a polarizing plate comprising the same
KR101655630B1 (en) Additive for norbornene film, and otical film comprising the same
KR101669180B1 (en) Phase difference film and method for the preparation thereof
KR101497182B1 (en) Acryl-based copolymer and optical film comprising the same
KR101243707B1 (en) Retardation film with positive birefringence and liquid crystal display comprising the same
KR20100025741A (en) Resin composition for optical film and optical film comprising the same
KR101711700B1 (en) Acrylic copolymer and phase difference film comprising the same

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20190813

Year of fee payment: 4