JP7019892B2 - 液晶配向用フィルムの製造方法 - Google Patents
液晶配向用フィルムの製造方法 Download PDFInfo
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
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- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
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- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0068—Changing crystal orientation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
- B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
- B32B2310/0843—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using laser
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/202—LCD, i.e. liquid crystal displays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
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- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133792—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by etching
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Description
本発明の一実施態様によれば、前記液晶配向用フィルムの製造方法は、基材、導電性膜、液晶配向膜、および保護フィルムが順次に備えられた多層構造体を用意するステップを含む。
本発明の一実施態様によれば、前記液晶配向用フィルムの製造方法は、前記多層構造体側にパルスレーザを照射して、前記液晶配向膜の一領域をエッチングするステップを含む。
本発明の一実施態様によれば、前記液晶配向用フィルムの製造方法は、前記保護フィルムを除去して、前記導電性膜の一領域を露出させるステップを含む。前記導電性膜の一領域が露出することにより、液晶配向膜のエッチング残留物が除去された領域を有する液晶配向膜が備えられる。
基材、導電性膜、ラビング配向膜、粘着層、および保護フィルムが順次に備えられた多層構造体を製造した。
基材、導電性膜、カラムスペーサ、ラビング配向膜、粘着層、および保護フィルムが順次に備えられた多層構造体を製造した。
基材、導電性膜、光配向膜、ビーズスペーサ、ラビング配向膜、粘着層、および保護フィルムが順次に備えられた多層構造体を製造した。
*PC:Polycarbonate
*ITO:Indium Tin Oxide
*PI:Polyimide
*PET:Polyethylene Terephthalate
製造例1~製造例3のうちいずれか1つの多層構造体に、下記表2のような情報のパルスレーザを、前記保護フィルムに接する前記ラビング配向膜に焦点を合わせて、前記保護フィルムから前記ラビング配向膜の方向に、パルスレーザのパルスエネルギーを調節しながら照射し、前記ラビング配向膜をエッチングした。
製造例1~製造例3のうちいずれか1つの多層構造体の保護フィルムを除去し、前記表2のような情報のパルスレーザを、パルスエネルギーを調節して前記ラビング配向膜に直接焦点を合わせて照射した。
製造例3による多層構造体の保護フィルムを除去し、下記表5による赤外線波長のパルスレーザを、前記ラビング配向膜に直接焦点を合わせて照射し、配向膜のエッチング残留物をトルエンを用いて除去して、液晶配向用フィルムを製造した。
実施例1-1~実施例1-3、実施例2-1~実施例2-3、および実施例3-1~実施例3-3による液晶配向用フィルムの導電性膜表面および前記保護フィルムの前記多層構造体への接着面を、光学顕微鏡(BX51M、オリンパス社)を用いて撮影し、前記光学顕微鏡画像を図5~図7に示した。
比較例1-2~比較例1-4、比較例2-3~比較例2-4および比較例3-1~比較例3-4による液晶配向用フィルムの導電性膜表面を、光学顕微鏡(BX51M、オリンパス社)を用いて撮影し、前記光学顕微鏡画像を図8~図10に示した。
比較例1-1~比較例1-4、比較例2-1~比較例2-4および比較例3-1~比較例3-4による液晶配向用フィルムの導電性膜の表面に、4つの探針を用いて、それぞれの面抵抗を測定し、3回の測定値の平均値を下記表6に示した。
実施例1-4、実施例3-4および比較例4による液晶配向用フィルムをそれぞれ2枚ずつ用意した。
20:導電性膜
30:液晶配向膜
31:液晶配向膜のエッチング部分
40:保護フィルム
100:多層構造体
110:液晶配向用フィルム
200:パルスレーザ
Claims (12)
- 基材、導電性膜、液晶配向膜、および保護フィルムが順次に備えられた多層構造体にパルスレーザを照射して、前記液晶配向膜の一領域をエッチングするステップと、
前記保護フィルムを除去して、前記導電性膜の一領域を露出させるステップとを含み、
前記パルスレーザは、前記保護フィルムから前記液晶配向膜の方向に照射され、
前記導電性膜の一領域を露出させるステップは、前記パルスレーザの照射によってエッチングされた前記液晶配向膜の残留物と共に前記保護フィルムを除去して行われる液晶配向用フィルムの製造方法。 - 前記基材は、高分子基材である、請求項1に記載の液晶配向用フィルムの製造方法。
- 前記パルスレーザの波長は、343nmであり、前記保護フィルムの前記343nmの波長を有するパルスレーザにおける光透過度は、50%以上である、請求項1または2に記載の液晶配向用フィルムの製造方法。
- 前記多層構造体は、前記保護フィルムおよび前記液晶配向膜の間に粘着層をさらに含む、請求項1から3のいずれか一項に記載の液晶配向用フィルムの製造方法。
- 前記多層構造体は、前記導電性膜および前記液晶配向膜の間に2以上の互いに離隔したスペーサをさらに含む、請求項1から4のいずれか一項に記載の液晶配向用フィルムの製造方法。
- 前記スペーサは、カラムスペーサまたはビーズスペーサである、請求項5に記載の液晶配向用フィルムの製造方法。
- 前記パルスレーザは、前記保護フィルムに隣接した前記液晶配向膜の表面に焦点を合わせて照射される、請求項1から6のいずれか一項に記載の液晶配向用フィルムの製造方法。
- 前記パルスレーザは、ピコ秒レーザである、請求項1から7のいずれか一項に記載の液晶配向用フィルムの製造方法。
- 前記パルスレーザの最大パルスエネルギーは、50μJ以上100μJ以下であり、
前記パルスレーザのパルスエネルギーは、前記最大パルスエネルギーの5%以上15%以下である、請求項1から8のいずれか一項に記載の液晶配向用フィルムの製造方法。 - 前記パルスレーザの周波数は、10kHz以上400kHz以下である、請求項1から9のいずれか一項に記載の液晶配向用フィルムの製造方法。
- 前記パルスレーザのスポット間隔は、10μm以上100μm以下である、請求項1から10のいずれか一項に記載の液晶配向用フィルムの製造方法。
- 前記パルスレーザの照射速度は、0.1m/s以上10m/s以下である、請求項1から11のいずれか一項に記載の液晶配向用フィルムの製造方法。
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KR10-2017-0123422 | 2017-09-25 | ||
KR1020170123422A KR102178118B1 (ko) | 2017-09-25 | 2017-09-25 | 액정 배향용 필름의 제조방법 |
PCT/KR2018/011264 WO2019059720A2 (ko) | 2017-09-25 | 2018-09-21 | 액정 배향용 필름의 제조방법 |
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JP2020534564A JP2020534564A (ja) | 2020-11-26 |
JP7019892B2 true JP7019892B2 (ja) | 2022-02-16 |
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WO2019059720A3 (ko) | 2019-05-09 |
CN111107995B (zh) | 2022-03-18 |
JP2020534564A (ja) | 2020-11-26 |
KR102178118B1 (ko) | 2020-11-13 |
EP3670186A2 (en) | 2020-06-24 |
EP3670186B1 (en) | 2022-11-09 |
EP3670186A4 (en) | 2020-08-26 |
US20200271975A1 (en) | 2020-08-27 |
KR20190034869A (ko) | 2019-04-03 |
US11428992B2 (en) | 2022-08-30 |
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CN111107995A (zh) | 2020-05-05 |
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