TWI284236B - Optical film, laminated polarizing plate, liquid crystal display using the same, and self-light-emitting display using the same - Google Patents

Optical film, laminated polarizing plate, liquid crystal display using the same, and self-light-emitting display using the same Download PDF

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Publication number
TWI284236B
TWI284236B TW092101341A TW92101341A TWI284236B TW I284236 B TWI284236 B TW I284236B TW 092101341 A TW092101341 A TW 092101341A TW 92101341 A TW92101341 A TW 92101341A TW I284236 B TWI284236 B TW I284236B
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Taiwan
Prior art keywords
axis
optical film
same
liquid crystal
film
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TW092101341A
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English (en)
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TW200400396A (en
Inventor
Nao Murakami
Takashi Yamaoka
Hiroyuki Yoshimi
Yuuichi Nishikouji
Masaki Hayashi
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Nitto Denko Corp
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Publication of TW200400396A publication Critical patent/TW200400396A/zh
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Publication of TWI284236B publication Critical patent/TWI284236B/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/54—Arrangements for reducing warping-twist

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)

Description

1284236 4·如申請專利範圍第3項之光學薄膜，其中，該非液晶 性材料係擇自聚醯胺、聚醯亞胺、聚酯、聚醚酮、聚醯月安 醯亞胺、及聚酯醯亞胺所構成群中之至少一種聚合物材料 〇 5. 如申請專利範圍第1項之光學薄膜，其中，在透明薄 膜（b)上，直接塗佈複折射層（a)之形成材料來形成塗佈膜， 使透明薄膜（b)和該塗佈膜一起延伸，藉此來得到光學薄膜 〇 6. 如申請專利範圍第1項之光學薄膜，其中，進一步包 含接著劑層和黏著劑層之至少一方。 7. 如申請專利範圍第6項之光學薄膜，其中，在最外層 ，積層接著劑層和黏著劑層之至少一方。 8. —種積層偏光板，係包含光學薄膜和偏光元件之積層 偏光板，其特徵爲：該光學薄膜係申請專利範圍第1項之 光學薄膜。 9. 一種液晶面板，係包含液晶單元和光學構件、且在液 晶單元之至少一表面配置光學構件而構成之液晶面板，其 特徵爲：該光學構件係申請專利範圍第1項之光學薄膜或 申請專利範圍第8項之積層偏光板。 10. —種液晶顯示裝置，係包含液晶面板之液晶顯示裝 置，其特徵爲：該液晶面板係申請專利範圍第9項之液晶 面板。 11. 一種自發光型顯示裝置，其特徵爲：包含申請專利 範圍第1項之光學薄膜和申請專利範圍第8項之積層偏光 58 1284236 板之至少一方。 12. —種有機EL顯示裝置，係包含有機EL發光體，該 有機發光體在有機發光層之表面側具備透明電極、在有機 發光層之背面側具備金屬電極，在該透明電極表面，係具 備申請專利範圍第1至7項中任一項之光學薄膜或申請專 利範圍第8項之積層偏光板。 13. 如申請專利範圍第1項之光學薄膜，其配置於液晶 單元之至少一表面而構成液晶面板。 14. 如申請專利範圍第8項之積層偏光板，其配置於液 晶單元之至少一表面而構成液晶面板。 15. 如申請專利範圍第13項之光學薄膜，其中，該液晶 面板係配置於液晶顯示裝置。 16. 如申請專利範圍第14項之積層偏光板，其中，該 液晶面板係配置於液晶顯示裝置。 17. 如申請專利範圍第1項之光學薄膜，其係配置於自 發光型顯示裝置。 18. 如申請專利範圍第8項之積層偏光板，其係配置 於自發光型顯示裝置。 19. 一種光學薄膜之製造方法，係用來製造包含複折射 層（a)和透明薄膜（b)之光學薄膜，其特徵爲： 在該透明薄膜（b)上塗佈複折射層（a)形成材料來形成塗 佈膜；該複折射層U)形成材料係擇自聚醯胺、聚醯亞胺、 聚酯、聚醚酮、聚醯胺醯亞胺、及聚酯醯亞胺所構成群中 之至少一種非液晶性材料； 59 1284236 藉由使該塗佈膜與透明薄膜（b)延伸或收縮，而形成光 學雙軸性之複折射層⑷及透明薄膜（b)，該複折射層⑷厚度 爲1〜20#m，且該光學薄膜滿足數學式（I)〜式（III)之全部條 件： Δ n(a) > Δ n(b)x 10......(I) 1 < (nx— nz)/(nx — ny)......(II) 0.0005^ An(a)^ 0.5……(III) 在數學式（I)〜(III)中，AnU)係複折射層（a)之複折射率 ，ArUb)係透明薄膜（b)之複折射率，分別以下列數學式來 表示，在數學式（II)及下列數學式，nx、ny及nz係分別表 示複折射層（a)之X軸、Y軸及Z軸方向之折射率，nx’、 ny’及nz’係表示透明薄膜（b)之X軸、Y軸及Z軸方向之折 射率；該X軸，代表在複折射層（a)及透明薄膜（b)面內、顯 示最大折射率之軸方向，Y軸代表在該面內垂直於X軸之 軸方向，Z軸代表垂直於X軸及Y軸之厚度方向： △ n(a)= [(nx + ny) / 2] — nz △ n(b)=[(nx’ + ny’）/2] — nz’。 20. 如申請專利範圍第19項之光學薄膜之製造方法，其 中’在該透明薄膜（b)上，係直接塗佈該複折射層（b)形成材 料而形成塗佈膜。 21. 如申請專利範圍第19項之光學薄膜之製造方法，其 中’該光學膜薄係VA(垂直配向）模式之液晶顯示裝置用之 視角補償薄膜。 1S1 60
TW092101341A 2002-01-23 2003-01-22 Optical film, laminated polarizing plate, liquid crystal display using the same, and self-light-emitting display using the same TWI284236B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002014529 2002-01-23
JP2002151337 2002-05-24

Publications (2)

Publication Number Publication Date
TW200400396A TW200400396A (en) 2004-01-01
TWI284236B true TWI284236B (en) 2007-07-21

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US (1) US7054049B2 (zh)
EP (1) EP1469328A4 (zh)
KR (1) KR100591056B1 (zh)
CN (1) CN1313848C (zh)
TW (1) TWI284236B (zh)
WO (1) WO2003062875A1 (zh)

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TWI414832B (zh) * 2007-09-07 2013-11-11 Nitto Denko Corp An optical film and a method for manufacturing the same
US10394080B2 (en) 2017-12-28 2019-08-27 Industrial Technology Research Institute Wideband compensation stack film and optical element using the same

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JP2001343529A (ja) 2000-03-30 2001-12-14 Kanegafuchi Chem Ind Co Ltd 偏光子保護フィルムおよびその製造方法
JP2001290023A (ja) * 2000-04-04 2001-10-19 Toray Ind Inc 液晶表示装置用ポリイミド位相差薄膜、及び該位相差薄膜を有するカラーフィルター、液晶表示装置
JP2001318223A (ja) * 2000-05-09 2001-11-16 Sumitomo Chem Co Ltd 位相差板
JP2003029038A (ja) * 2001-07-17 2003-01-29 Nitto Denko Corp 光学フィルム、偏光板及び表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI414832B (zh) * 2007-09-07 2013-11-11 Nitto Denko Corp An optical film and a method for manufacturing the same
US10394080B2 (en) 2017-12-28 2019-08-27 Industrial Technology Research Institute Wideband compensation stack film and optical element using the same

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EP1469328A4 (en) 2007-01-03
TW200400396A (en) 2004-01-01
CN1623107A (zh) 2005-06-01
KR100591056B1 (ko) 2006-06-22
EP1469328A1 (en) 2004-10-20
KR20040071313A (ko) 2004-08-11
US7054049B2 (en) 2006-05-30
US20050030456A1 (en) 2005-02-10
WO2003062875A1 (fr) 2003-07-31
CN1313848C (zh) 2007-05-02

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