KR100469307B1 - Light-transmissive and reflective film - Google Patents
Light-transmissive and reflective film Download PDFInfo
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- KR100469307B1 KR100469307B1 KR1019970041731A KR19970041731A KR100469307B1 KR 100469307 B1 KR100469307 B1 KR 100469307B1 KR 1019970041731 A KR1019970041731 A KR 1019970041731A KR 19970041731 A KR19970041731 A KR 19970041731A KR 100469307 B1 KR100469307 B1 KR 100469307B1
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- 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
- G02F1/133553—Reflecting elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
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- 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
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
Abstract
본 발명은 전계 효과형 액정표시장치에서 광 확산판으로 사용되는 광투과 및 반사형 필름에 관한 것이다.The present invention relates to a light transmissive and reflective film used as a light diffusion plate in a field effect liquid crystal display device.
본 발명의 광투과 및 반사형 필름은 투명필름 내에 백색입자를 포함하여 제조되거나 또는 열경화성 수지에 백색입자를 분산혼합하여 제조된 조성물을 투명필름 상에 도포하여 제조되며, 산란투과율이 30～70%인 기판용 백색투과형 필름; 및 상기 백색투과형 필름 상에 아크릴계 중합물, 그의 공중합물 및 우레탄 아크릴계 공중합물로 이루어진 군에서 선택된 투명성질의 점착물질에 진주안료 및 형광염료가 분산혼합되어 형성된 광확산층;으로 이루어지며, 밝기 효과가 우수하고 밝기조절이 용이한 등의 장점 이외에 심미성이 뛰어나다.The light transmissive and reflective film of the present invention is prepared by applying a composition prepared by including white particles in a transparent film or by dispersing and mixing white particles in a thermosetting resin on a transparent film, with a scattering transmittance of 30 to 70%. White transmissive film for phosphorus substrates; And a light diffusing layer formed by dispersing and mixing a pearl pigment and a fluorescent dye on a transparent adhesive material selected from the group consisting of an acrylic polymer, a copolymer thereof, and a urethane acrylic copolymer on the white transparent film. In addition to the advantages of easy brightness adjustment, it has excellent aesthetics.
Description
본 발명은 전계효과형 액정표시장치에서 광 확산판으로 사용되는 광투과 및 반사형 필름에 관한 것으로서, 투명고분자 재료의 편면에 미세한 요철을 부여해 광을 산란시키는 기존 필름에 대하여 반사 밝기 또는 심미성이 개선된 광투과 및 반사형 필름에 관한 것이다.The present invention relates to a light transmissive and reflective film used as a light diffusion plate in a field effect liquid crystal display device, and improves reflection brightness or aesthetics with respect to an existing film which gives fine unevenness to one side of a transparent polymer material and scatters light. It relates to a light transmission and a reflective film.
종래 사용되는 광 확산판으로는 유리, 폴리에스터, 폴리프로필렌 등 투명성이 있는 고분자 재료의 편면에 미세한 요철을 부여해 광을 산란시키도록 하는 것이 알려져 있다. 그러나, 이와 같은 광 확산판으로는 광확산성이 약하고 게다가 편면이 손상되기 쉬우며 요철의 크기를 균일하게 마무리하는 것이 고도의 기술을 요하는 문제점이 있다. Conventionally used light diffusing plates are known to impart fine irregularities to one side of transparent polymer materials such as glass, polyester, and polypropylene so as to scatter light. However, such a light diffusion plate has a problem in that light diffusivity is weak, and one side is easily damaged, and uniform finishing of the size of the unevenness requires high technology.
이에 관련된 문제를 해결하는 방법으로서 일본특원소 55-164960(특개소 57-88401)에서는 기판내에서 광을 반사함과 동시에 확산시키는 진주안료를 균일하게 분산시켜 광확산 투과성을 갖는 수지층을 형성하는 방법을 제시하였다. 그러나, 이와같은 방법에서는 투명성이 있는 고분자재료의 편면에 진주안료와 기타 금속산화물이 분산된 점착층을 형성시키는 것만으로도 확산성과 자기지지성을 충분히 보완할 수는 있으나, 진주안료의 입도분포가 연속적인 점으로 인해 육안적으로 심미성(진주빛 반짝거림)이 저하되어 고품위 칼라면에서 만족스럽지 못한 문제점이 있다.As a method to solve this problem, Japanese Patent Application No. 55-164960 (Japanese Patent Application No. 57-88401) uniformly disperses a pearl pigment that reflects and diffuses light in a substrate to form a resin layer having light diffusivity. The method is presented. However, in such a method, it is possible to sufficiently compensate for diffusivity and self-support by forming an adhesive layer containing pearl pigments and other metal oxides on one side of transparent polymer material. Due to the continuous point, the aesthetics (pearl glitter) is visually degraded, which is not satisfactory in terms of high-quality color.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로서, 기판의 베이스필름으로서, 백색투과형 필름을 적용하여 반사밝기를 향상시키고 밝기 조절을 용이하게 한 새로운 반사형 필름을 제공하는 것을 그 목적으로 한 것이다.The present invention has been made to solve the above problems, and as a base film of the substrate, to provide a new reflective film by applying a white transmissive film to improve the reflection brightness and easy brightness control will be.
본 발명은 상기와 같은 목적을 달성하기 위하여 백색투과확산형 필름을 기판으로 하고 이 위에 투명점착물질에 진주안료 및 형광안료가 균일하게 분산 혼합된 광학산 점착층을 형성한 광투과 및 반사형 필름을 제공한다.In order to achieve the above object, the present invention provides a light-transmitting and reflective film using a white transparent diffusion film as a substrate and an optical acid adhesive layer in which pearl pigments and fluorescent pigments are uniformly dispersed and mixed in a transparent adhesive material. To provide.
본 발명에서 백색투과형 필름은 투명필름 내에 백색입자를 포함하여 제조되거나 또는 투명필름 상에 백색입자를 열경화성 수지에 분산 혼합하여 제조된 조성물을 도포하여 제조된다. 여기서 백색투과형 필름의 산란투과율은 30～70% 범위에 있도록 조절하며, 30% 미만일 경우는 광투과 및 확산 필름자체의 투과율이 너무 낮아 제품인지도가 낮고 70% 초과할 경우는 백색도가 떨어져 밝기개선 효과가 적다.In the present invention, the white transparent film is prepared by including white particles in a transparent film or by applying a composition prepared by dispersion-mixing white particles on a thermosetting resin on a transparent film. Here, the scattering transmittance of the white transmissive film is adjusted to be in the range of 30 to 70%, and if it is less than 30%, the transmittance of the light transmittance and the diffusion film itself is too low, so that the product recognition is low and the brightness is lowered if it exceeds 70%. Is less.
백색입자는 백색도의 조절인자로서, 1) 이산화티탄 및 2) 실리카 또는 탄산 칼슘에서 선택된 어느 하나의 조합으로 구성되며, 특히 상기 백색입자가 열경화성 수지에 분산혼합시 열경화성 수지 100중량부에 대하여, 백색입자 5～50중량부가 사용된다. 또한, 상기 백색입자 조합 중, 이산화티탄은 30～70중량%를 함유하며, 이산화티탄이 30중량% 미만일 경우 백색도가 낮아 밝기개선 효과가 적고, 70중량% 초과할 경우는 투과율이 너무 낮게 된다.The white particles are a regulator of whiteness, and are composed of any one selected from 1) titanium dioxide and 2) silica or calcium carbonate, and in particular, when the white particles are dispersed and mixed in the thermosetting resin, the white particles are white. 5-50 parts by weight of particles are used. In addition, in the white particle combination, titanium dioxide contains 30 to 70% by weight, and when titanium dioxide is less than 30% by weight, the whiteness is low and the brightness improvement effect is low, and when it exceeds 70% by weight, the transmittance is too low.
본 발명에서 사용되는 투명필름은 광학적 투명성이 있는 합성수지 또는 유리재료가 사용되며, 이러한 합성수지의 구체적 예로서는 (메타) 아크릴계수지, 폴리카보네이트, 아세테이트, 폴리에스터, 폴리스티렌, 폴리우레탄 등이 있다.As the transparent film used in the present invention, synthetic resin or glass material having optical transparency is used, and specific examples of the synthetic resin include (meth) acrylic resin, polycarbonate, acetate, polyester, polystyrene, polyurethane, and the like.
한편, 본 발명에서 광확산층은 투명성질의 점착물질에 진주안료 및 형광염료가 분산 혼합되어 형성된다. 상기 투명성질의 점착물질로는 아크릴계 중합물, 그의 공중합물 및 우레탄 아크릴계 공중합물로 이루어진 군에서 선택된 어느 하나가 사용될 수 있다.On the other hand, in the present invention, the light diffusion layer is formed by dispersing and mixing pearl pigments and fluorescent dyes in a transparent adhesive material. As the transparent adhesive material, any one selected from the group consisting of an acrylic polymer, a copolymer thereof, and a urethane acrylic copolymer may be used.
본 발명에서는 사용되는 진주안료는 반사칼라면에서 은은한 연녹색을 내기 위해 백색 진주안료에 녹색계 진주안료를 혼용해 그 심미성을 높일 수 있는데, 이 때 사용되는 진주안료는 투명이 우수한 백운모로서, 약 1～150㎛의 평균경과 각 경의 1/10이하(좋게는 1/15～1/100)의 후도를 갖는 비늘상의 운모이며, 상기 표면에 직경이 약 0.03～0.1㎛인 이산화티탄 미립자를 함유하는 수화물을 이용하여 도포하고 배소(焙燒)하여 표면 상에 티탄피복을 형성하여 제조된다. 이같이 얻어진 이산화티탄 피복운모의 사용은 운모가 필름층내에서 배열하여 층상구조를 이루고 입사한 광을 배열한 비늘 조각상의 결정에 규칙적으로 다중반사시켜 심미감이 있는 광택이 얻어지므로 유용하다.Pearl pigments used in the present invention can increase the aesthetics by mixing green pearl pigments with white pearl pigments in order to produce a soft pale green in a reflective knife ramen. A scale mica having an average diameter of ˜150 μm and a thickness of 1/10 or less (preferably 1/15 to 1/100) of each diameter, and containing titanium dioxide fine particles having a diameter of about 0.03 to 0.1 μm on the surface. It is produced by applying and roasting using a hydrate to form a titanium coating on the surface. The use of the titanium dioxide-coated mica obtained in this way is useful because mica arranges in a film layer to form a layered structure and regularly reflects multi-reflectively to crystals of scales in which incident light is arranged, thereby obtaining aesthetic gloss.
상기 진주안료의 첨가량은 각 안료의 크기, 형상, 재질 등에 따라 다르지만 투명성질의 점착물질 100 중량부에 대하여, 0.5～10 중량부의 범위 내에서 첨가되는데, 0.5중량부 미만에서는 반사 및 확산효과가 불충분하고 10중량부 초과시에는 확산효과가 불충분하고 투과량이 과잉 감소하는 등의 문제가 있다. The addition amount of the pearl pigment is different depending on the size, shape, material, etc. of each pigment, but is added within the range of 0.5 to 10 parts by weight with respect to 100 parts by weight of the transparent adhesive material, but less than 0.5 parts by weight is insufficient reflection and diffusion effects If it exceeds 10 parts by weight, there are problems such as insufficient diffusion effect and excessive decrease in permeation amount.
또한, 백색 그대로 통과하기 위해서는 확산판의 투과 분광스펙트라도 뉴트랄, 즉 파장의존성이 없는 형태이어야 하는데, 적색계의 광을 없애기 위해 본 발명에서는 500～520㎚ 파장의 형광염료를 사용한다. 이러한 형광염료로서는 500～520㎚ 파장쪽에 발광극대 파장이 있고 동시에 투명물질에 균일하게 용해 또는 분산하는 것이면 어떤 것이든 좋다. 혐광염료의 첨가량은 염료의 발광강도 성능에 따라 다르지만 투명성질의 점착물질 100중량부에 대하여 0.03～0.5중량부 범위에서 첨가할 수 잇다. 이때, 0.03중량%부 미만에서는 적색 투과광의 제거가 부족하고 0.5중량부 초과시에는 투과광이 뉴트랄이 안되고 녹색화되는 경향이 있다.In addition, the transmission spectra of the diffusion plate must also be neutral, that is, in the form of no wavelength dependence in order to pass as white. In the present invention, a fluorescent dye having a wavelength of 500 to 520 nm is used to eliminate red-based light. The fluorescent dye may be any one as long as it has a maximum light emission wavelength at a wavelength of 500 to 520 nm and is uniformly dissolved or dispersed in a transparent material. The amount of anaerobic dye added depends on the luminous intensity of the dye, but can be added in the range of 0.03 to 0.5 parts by weight based on 100 parts by weight of the transparent adhesive material. At this time, the removal of the red transmitted light is insufficient in less than 0.03% by weight, and when more than 0.5 parts by weight, the transmitted light tends to be neutral and green.
이하에서 실시예 및 비교예를 들어 본 발명을 좀 더 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.
(실시예 1-2)(Example 1-2)
투명필름으로서 아크릴계 수지를 사용하고, 투명성질의 점착물질로서 아크릴계 공중합체를 사용하고 하기 표1에 나타낸 구성비 및 함유량을 지닌 백색입자를 첨가 혼합하여 광투과 및 반사형 필름을 제조하였으며, 그 특성을 측정하여 표1에 나타내었다.An acrylic resin was used as the transparent film, an acrylic copolymer was used as the transparent adhesive material, and white particles having a composition ratio and content shown in Table 1 were added and mixed to prepare a light transmitting and reflective film, and the characteristics thereof were measured. It is shown in Table 1.
(비교예 1-5)(Comparative Example 1-5)
하기 표1에 나타낸 바와 같은 백색입자의 구성비 및 함유량을 사용한 것 외에는 실시예와 동일하게 실시하였고, 그 특성을 측정하여 표1에 나타내었다.It carried out similarly to the Example except having used the composition ratio and content of the white particle as shown in following Table 1, The characteristic was measured and shown in Table 1.
상기 실시예 및 비교예에서도 확인되듯이 본 발명에 따라 광투과 및 반사형 필름을 제조하는 경우 밝기 효과가 우수하고 밝기조절이 용이한 등의 장점외에 반투과 필름의 심미성 향상을 이룰 수 있는 등의 유용한 효과를 얻을 수 있다.As can be seen from the above examples and comparative examples, in the case of manufacturing the light transmissive and reflective film according to the present invention, the aesthetics of the transflective film can be improved in addition to the advantages of excellent brightness effect and easy brightness control A useful effect can be obtained.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970041731A KR100469307B1 (en) | 1997-08-27 | 1997-08-27 | Light-transmissive and reflective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970041731A KR100469307B1 (en) | 1997-08-27 | 1997-08-27 | Light-transmissive and reflective film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990018544A KR19990018544A (en) | 1999-03-15 |
| KR100469307B1 true KR100469307B1 (en) | 2005-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970041731A KR100469307B1 (en) | 1997-08-27 | 1997-08-27 | Light-transmissive and reflective film |
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| Country | Link |
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| KR (1) | KR100469307B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100537087B1 (en) * | 1998-10-29 | 2006-03-16 | 주식회사 새 한 | Light Diffusion Transflective Film |
| KR20100101549A (en) * | 2010-08-16 | 2010-09-17 | 주식회사 나노브릭 | Display method for controlling reflected light |
| KR102314091B1 (en) * | 2018-04-17 | 2021-10-15 | 삼성에스디아이 주식회사 | Photosensitive resin composition, photosensitive resin layer using same and color filter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788401A (en) * | 1980-11-21 | 1982-06-02 | Nitto Electric Ind Co Ltd | Diffusion plate |
| JPH075305A (en) * | 1993-04-19 | 1995-01-10 | Keiwa Shoko Kk | Light diffusing sheet material |
| JPH07281010A (en) * | 1994-02-18 | 1995-10-27 | Tomoegawa Paper Co Ltd | Semitransmissive semireflector and semitransmissive semireflection type polarizing film laminated body using it |
| JPH0876112A (en) * | 1994-06-29 | 1996-03-22 | Mitsui Toatsu Chem Inc | Reflection sheet |
| JPH09171709A (en) * | 1995-12-20 | 1997-06-30 | Reiko Co Ltd | Resin fine particles for light diffusion sheet, and light diffusion sheet |
| KR19980068299A (en) * | 1997-02-17 | 1998-10-15 | 한형수 | Manufacturing Method of Optical Acid Film for TFT-LCD |
-
1997
- 1997-08-27 KR KR1019970041731A patent/KR100469307B1/en active IP Right Grant
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788401A (en) * | 1980-11-21 | 1982-06-02 | Nitto Electric Ind Co Ltd | Diffusion plate |
| JPH075305A (en) * | 1993-04-19 | 1995-01-10 | Keiwa Shoko Kk | Light diffusing sheet material |
| JPH07281010A (en) * | 1994-02-18 | 1995-10-27 | Tomoegawa Paper Co Ltd | Semitransmissive semireflector and semitransmissive semireflection type polarizing film laminated body using it |
| KR100277753B1 (en) * | 1994-02-18 | 2001-01-15 | 호소이 쇼지로 | Semi-transmissive semi-reflective film laminate and its manufacturing method |
| JPH0876112A (en) * | 1994-06-29 | 1996-03-22 | Mitsui Toatsu Chem Inc | Reflection sheet |
| JPH09171709A (en) * | 1995-12-20 | 1997-06-30 | Reiko Co Ltd | Resin fine particles for light diffusion sheet, and light diffusion sheet |
| KR19980068299A (en) * | 1997-02-17 | 1998-10-15 | 한형수 | Manufacturing Method of Optical Acid Film for TFT-LCD |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990018544A (en) | 1999-03-15 |
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