KR100618469B1 - A light diffusive reflection and transmission type polarized sheet - Google Patents
A light diffusive reflection and transmission type polarized sheet Download PDFInfo
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- KR100618469B1 KR100618469B1 KR1019980045899A KR19980045899A KR100618469B1 KR 100618469 B1 KR100618469 B1 KR 100618469B1 KR 1019980045899 A KR1019980045899 A KR 1019980045899A KR 19980045899 A KR19980045899 A KR 19980045899A KR 100618469 B1 KR100618469 B1 KR 100618469B1
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- aluminum powder
- polarizing plate
- pigment
- light
- powder pigment
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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
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
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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
- G02F1/133528—Polarisers
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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 광확산반사투과형 편광판에 관한 것으로서, 액정표시장치의 보다 심미적인 배경을 위하여 밝기 문제를 개선할 수 있도록 투과 및 반사를 동시에 나타낼 수 있도록 함으로써 고반사에 의한 시감적 밝기가 우수한 광확산반사투과형 편광판의 제공을 목적으로 한다. The present invention relates to a light diffusing transmissive polarizing plate, which can simultaneously transmit and reflect to improve the brightness problem for a more aesthetic background of a liquid crystal display, thereby providing excellent light diffusive reflection due to high reflection. An object of the present invention is to provide a transmissive polarizing plate.
본 발명에 따른 광확산반사투과형 편광판은, 대전방지제의 코팅 또는 혼입에 의하여 제전처리된 투명필름과; 알루미늄분 안료가 스테아린산, 올레인산 또는 아민계 알콜 화합물로 표면처리됨과 아울러 열경화성수지에 분산혼합하여 투명필름위에 도포됨으로써 형성되는 알루미늄분 안료층을 포함하여 이루어진다. 또한 상기 알루미늄분 안료층에 투명점착제에 의하여 진주안료 및 형광염료를 가지는 확산층이 더 적층될 수 있다. 알루미늄분 안료는 열경화성수지에 대하여 5～80중량%가 첨가되는 것이 바람직하다. 따라서, 다른 비금속 안료보다 우수한 특성, 즉 우수한 반사특성, 은폐력, 피복력, 방청력 등의 기능을 가질 뿐만 아니라 스파클링효과 및 플로트효과를 도모할 수 있는 알루미늄분 안료가 포함됨으로써 고반사에 의한 액정표시장치의 시감적 밝기가 우수한 효과를 얻을 수 있다. The light diffusion reflecting polarizing plate according to the present invention comprises: a transparent film subjected to antistatic treatment by coating or incorporation of an antistatic agent; The aluminum powder pigment includes an aluminum powder pigment layer formed by being surface-treated with stearic acid, oleic acid or an amine alcohol compound and being dispersed and mixed with a thermosetting resin and applied onto a transparent film. In addition, a diffusion layer having a pearl pigment and a fluorescent dye may be further laminated on the aluminum powder layer by a transparent adhesive. It is preferable that 5 to 80 weight% of an aluminum powder pigment is added with respect to a thermosetting resin. Therefore, the liquid crystal display device with high reflection by including an aluminum powder pigment, which has the characteristics of superior characteristics than other non-metallic pigments, that is, excellent reflection characteristics, hiding power, coating power, rust preventing property, etc., and which can achieve sparking effect and float effect. The visual brightness of the can achieve an excellent effect.
Description
본 발명은 전계효과형 액정표시장치 등에 주로 사용되는 광확산반사투과형 편광판에 관한 것으로서, 특히 투과 및 반사를 동시에 나타낼 수 있는 광확산반사투과형 편광판에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a light diffusing transmissive polarizing plate mainly used for field effect type liquid crystal displays and the like, and more particularly to a light diffusing transmissive polarizing plate capable of simultaneously displaying transmission and reflection.
액정표시장치에서 심미적인 효과를 나타내기 위해서는 밝기 문제가 중요한 인자이다. The brightness problem is an important factor in showing the aesthetic effect in the liquid crystal display.
종래 액정표시장치에 사용되는 광확산형 편광판으로는 유리, 폴리에스터, 또는 폴리프로필렌 등 투명성이 좋은 고분자 재료의 편면에 미세한 요철을 부여함으로써 광을 산란시키도록 이루어진 것이 알려져 있다. 그러나 이와 같은 광확산형 편광판은 광확산성이 약하고, 게다가 손상되기 쉬워 요철의 크기를 균일하게 마무리하는 것은 고도의 기술을 요하는 문제가 있다. Background Art Conventionally, light diffusing polarizers used in liquid crystal displays have been known to scatter light by imparting fine concavities and convexities to one side of a transparent polymer material such as glass, polyester, or polypropylene. However, such a light diffusing polarizing plate has a weak light diffusing property and is easily damaged, and it is a problem that a high level of uneven finish requires a high level of skill.
이러한 문제점을 해결하는 방법으로서, 일본 공개특허 소57-88401호에 개시된 방법이 있다. 이 방법에 따르면, 기판내에서 광을 반사함과 동시에 확산시키는 진주안료를 균일하게 분산시킴으로써 전술한 결점을 해소할 수 있다. As a method of solving this problem, there is a method disclosed in Japanese Patent Laid-Open No. 57-88401. According to this method, the above-mentioned drawback can be eliminated by uniformly dispersing the pearl pigment which reflects and diffuses light in the substrate.
그러나, 선행기술의 방법에 있어서는, 투명 필름위에 진주안료를 도포함으로써 반사밝기에서는 그렇게 만족스럽지 못하고 또한 액정표시장치 패널상에서의 밝기 조절에 한계가 있다. However, in the method of the prior art, by applying a pearl pigment on the transparent film, it is not so satisfactory in the reflection brightness and there is a limit to the brightness control on the liquid crystal display panel.
본 발명은 액정표시장치의 보다 심미적인 배경을 위하여 밝기 문제를 개선할 수 있도록 투과 및 반사를 동시에 나타낼 수 있도록 함으로써 고반사에 의한 시감적 밝기가 우수한 광확산반사투과형 편광판의 제공을 목적으로 한다. An object of the present invention is to provide a light-diffusing transmissive polarizing plate having excellent visual visibility due to high reflection by allowing transmission and reflection to be simultaneously displayed to improve brightness problems for a more aesthetic background of a liquid crystal display.
상기 목적을 달성하기 위하여, 본 발명에 따른 광확산반사투과형 편광판은, 선행기술의 진주안료를 함유하는 기판층이 있는 확산판이 액정표시장치의 패널상에서 밝기 조절에 한계가 있고 어두운 단점을 개선하기 위하여 기판의 베이스필름에 알루미늄분 안료를 포함한 고반사층이 적층되도록 하여 반사광의 밝기가 밝아지도록 함으로써 반사밝기를 조절하는 것을 특징으로 한다. In order to achieve the above object, the light diffusion reflecting polarizing plate according to the present invention, the diffusion plate having a substrate layer containing the pearl pigment of the prior art is limited in the brightness control on the panel of the liquid crystal display device and to improve the dark disadvantages The high reflection layer including the aluminum powder pigment is laminated on the base film of the substrate, so that the brightness of the reflected light is brightened.
본 발명의 편광판을 구성하는 알루미늄분 안료층에 포함된 알루미늄분 안료는 다른 비금속 안료와는 본질적으로 다른 많은 성질을 가지고 있다. 즉, 입자형상이 비늘조각상으로 도막표층에 평행배열하는 리핑현상을 이용하면 도막에 우수한 반사특성, 은폐력, 피복력, 방청력 등의 기능을 부여할 수 있을 뿐만 아니라 비늘조각상 입자가 도막 바닥에 가라앉아 평행배열하는 논리핑현상을 이용하면 반짝반짝 빛나는 독특한 스파클링효과 및 플로트효과를 내는 메탈릭 외관을 나타낼 수 있다. The aluminum powder pigment contained in the aluminum powder pigment layer constituting the polarizing plate of the present invention has many properties that are essentially different from other nonmetallic pigments. In other words, the use of the ripping phenomenon in which the particle shape is arranged in parallel with the coating layer in the form of scales can not only provide the coating with excellent reflection characteristics, hiding power, coating power, antirust ability, etc., but also the scale particles sink to the bottom of the coating film. Parallel array logic can be used to create a metallic appearance with unique sparkling and floating effects.
본 발명에 따른 광확산반사투과형 편광판은, 대전방지제의 코팅 또는 혼입에 의하여 제전처리된 투명필름에, 스테아린산, 올레인산 또는 아민계 알콜 화합물로 표면처리된 알루미늄분 안료가 열경화성수지에 분산혼합하여 투명필름위에 도포되어 형성되는 알루미늄분 안료층을 가진다. In the light diffusing reflective polarizing plate according to the present invention, an aluminum powder pigment surface-treated with a stearic acid, an oleic acid or an amine alcohol compound is dispersed and mixed in a thermosetting resin into a transparent film that is antistatically treated by coating or mixing an antistatic agent. It has the aluminum powder pigment layer apply | coated and formed on it.
투명필름을 제전처리하는 이유는 진주안료 코팅용으로 사용되는 아크릴계 점착제가 정전기에 민감하고 필름상에 표면저항이 1012～1014Ω정도로 높기 때문에, 코팅시 코팅얼룩이 발생하여 불량률이 높아지기 때문이다. 대전방지제로는 수용성 고분자, 계면활성제 등이 사용가능하다.The reason for the antistatic treatment of the transparent film is that the acrylic adhesive used for pearlescent pigment coating is sensitive to static electricity and the surface resistance on the film is about 10 12 to 10 14 kPa, resulting in a coating stain during coating, thereby increasing the defective rate. As the antistatic agent, a water-soluble polymer, a surfactant, or the like can be used.
투명필름의 산란투과율은 10～80%이어야만 한다. 투과율이 10% 이하일 경우에는 광투과율이 너무 낮아 제품인지도가 낮고 80% 이상일 경우에는 반사도가 너무 떨어져 제품의 반사특성효과를 누릴 수 없다. 또한, 반사율이 10% 이하이면 디스플레이에서 반사특성효과를 활용할 수 없으며, 반사율이 80% 이상이면 투과율이 너무 낮아 밝기가 어두워 투과형 디스플레이에 이용할 수 없는 단점이 있다. 반사율 조절인자로서는 알루미늄분 안료로서 열경화성 수지에 대하여 5～80중량%를 차지하며, 또한 알루미늄분 안료에 대하여 표면처리제인 스테아린산, 올레인산 또는 아민계 알콜 화합물이 5～70중량%가 되는 것을 특징으로 한다. 스테아린산, 올레인산 또는 아민계 알콜 화합물의 조합비는 단독 또는 혼합 사용하여 반사율을 조절할 수 있다. 알루미늄분 안료의 비가 5중량% 이하일 경우 반사도가 낮아 밝기개선효과가 작고 80중량% 이상일 경우는 투과율이 너무 낮게 된다. The scattering transmittance of the transparent film should be 10 to 80%. If the transmittance is 10% or less, the light transmittance is too low, and the product recognition is low. If the transmittance is 80% or more, the reflectivity is too low to enjoy the reflection characteristic effect of the product. In addition, when the reflectance is 10% or less, the reflection characteristic effect cannot be utilized in the display, and when the reflectance is 80% or more, the transmittance is too low and the brightness is too dark to be used in a transmissive display. As a reflectance control factor, it is an aluminum powder pigment and occupies 5 to 80 weight% with respect to a thermosetting resin, and the aluminum powder pigment is 5 to 70 weight% of a stearic acid, an oleic acid, or an amine alcohol compound which is a surface treating agent. . The combination ratio of stearic acid, oleic acid or amine alcohol compound may be used alone or in combination to adjust the reflectance. When the ratio of the aluminum powder pigment is 5 wt% or less, the reflectivity is low, and the brightness improvement effect is small. When the ratio is 80 wt% or more, the transmittance is too low.
알루미늄분 안료는 짧은 지름과 긴 지름의 비가 1:1(구상분), 1:5(입상분), 1:50～1:250(비늘조각상)인 경우로 크게 대별할 수 있다. 본 발명에서는 상기 3종류 형태의 알루미늄분 안료를 단독 또는 2종 이상 혼합사용함으로써 외광을 도막 표면으로부터 반사시켜 은백색 광택을 내는 실버외관을 가지게 하거나, 동시에 반짝반짝 빛나는 메탈릭 외관을 가지게 하거나, 또는 보는 각도에 따라서 밝음이나 색이 바뀌는 다색성도 줄 수 있다. 본 발명에서 사용한 알루미늄분 안료의 입자크기는 짧은 지름이 0.05미크론에서 5미크론까지이며, 긴지름은 1미크론에서 150미크론까지의 범위에서 사용한다. Aluminum powder pigments can be roughly classified into a case where the ratio of the short diameter to the long diameter is 1: 1 (sphere), 1: 5 (granular), and 1:50 to 1: 250 (scale). In the present invention, by using the above three types of aluminum powder pigment alone or in combination of two or more kinds of the aluminum powder to reflect the external light from the surface of the coating film to have a silver appearance that gives a silvery white gloss, or at the same time to have a shiny metallic appearance or viewing angle Depending on the brightness or color change can give a multicolor. The particle size of the aluminum powder pigment used in the present invention is from 0.05 to 5 microns in short diameter, the long diameter is used in the range from 1 to 150 microns.
은백색 그대로 통과하기 위해서는 확산판의 투과 분광스텍트라도 뉴트럴(neutral), 즉 파장의존성이 없는 형태이어야 한다. 여기서, 적색계의 광을 없애기 위하여 500～520nm 파장의 형광염료를 이용한다. 이와 같이 하면 뉴트럴에 가깝게 할 수 있어 투과광은 뉴트럴에 근접할 수 있다. 또한 반사칼라면에서 은은한 연녹색을 내기 위하여 백색 진주안료에 녹색계 진주안료를 혼용하면 심미성을 더 높일 수 있다. In order to pass through the silver white, the transmission spectroscopy of the diffusion plate must also be neutral, that is, in the form of no wavelength dependency. In this case, a fluorescent dye having a wavelength of 500 to 520 nm is used to remove red light. In this way, it can be close to the neutral, and the transmitted light can be close to the neutral. In addition, in order to produce a soft pale green in the reflective knife ramen, white pearl pigments can be mixed with green pearl pigments to enhance aesthetics.
형광염료로는 500～520nm 파장쪽에 발광극대 파장이 있고, 동시에 투명물질에 균일하게 용해 또는 분산하는 것이면 어떤 것이든 좋다. 형광염료의 첨가량은 염료의 발광강도 성능이 다르지만 점착제(20g) 기준에 대하여 약 0.03～0.1중량%의 범위로 첨가할 수 있다. 형광염료의 첨가량이 0.03중량% 이하에서는 적색 투과광을 제거하는데 부족하고, 0.1중량% 이상에서는 투과광이 뉴트럴이 되지 않고 녹색화되는 경향이 있다.As long as the fluorescent dye has a maximum light emission wavelength at the wavelength of 500 ~ 520nm, at the same time it may be any dissolved or dispersed uniformly in a transparent material. The amount of the fluorescent dye added may vary in the range of about 0.03 to 0.1% by weight based on the pressure-sensitive adhesive (20 g), although the luminous intensity performance of the dye is different. If the amount of the fluorescent dye added is 0.03% by weight or less, the amount of the fluorescent dye is insufficient to remove the red transmitted light. If the amount of the fluorescent dye is 0.1% by weight or more, the transmitted light tends to become green without being neutral.
진주안료는 투명성이 우수한 백운모로 약 1～150㎛의 평균경과 각 경의 1/10 이하, 바람직하게는 1/15～1/100의 후도(厚度)를 가지는 비늘상 운모이고, 이 표면에 직경이 약 0.03～0.1㎛인 이산화티탄 미립자를 수화물로 하여 도포하고 하소()하여 박막상의 티탄피복을 형성함으로써 얻을 수 있다. 이와 같이 얻어진 이산화티탄 피복 운모의 사용은 운모가 필름층내에서 배열하여 층상구조를 이루고 입사한 광을 배열한 비늘 조각상의 결정에 규칙적으로 다중반사시켜 심미가 있는 광택이 얻어지므로 선호된다. 진주안료의 첨가량은 각 안료의 크기, 형상, 재질 등에 따라 다르지만 점착제(20g)에 대하여 약 0.5～2.5중량%의 범위로 첨가하는 것이 바람직하다. 투명 점착제는 아크릴계 또는 에폭시계 공중합물에 이소시아네이트계 또는 아민계 경화제를 첨가하여 사용한다.Pearl pigments are white mica with excellent transparency and are scaly mica having an average diameter of about 1 to 150 μm and a thickness of 1/10 or less, preferably 1/15 to 1/100 of each diameter. Titanium dioxide fine particles of about 0.03 to 0.1 µm are applied as a hydrate and calcined ( By forming a thin titanium coating. The use of the titanium dioxide coated mica obtained in this way is preferred because mica arranges in a film layer to form a layered structure and regularly reflects multi-reflectively to the crystals of the scaly statues in which incident light is arranged, thereby obtaining aesthetic luster. The amount of pearl pigment added varies depending on the size, shape, material, and the like of each pigment, but is preferably added in the range of about 0.5 to 2.5% by weight based on the pressure-sensitive adhesive (20 g). The transparent adhesive is used by adding an isocyanate or amine curing agent to an acrylic or epoxy copolymer.
본 발명에 있어서는, 첫째 제전처리된 투명필름 위에 고반사특성을 가지는 알루미늄분 안료층을 형성시키는 공정을 포함하고, 둘째 그 위에 투명점착제에 진주안료 및 형광염료를 가지는 층을 형성시키며, 셋째 이것을 편광필름과 합지하는 공정을 포함함으로써 고반사특성을 가지는 광확산반사투과형 편광판을 제조할 수 있다. In the present invention, firstly, a step of forming an aluminum powder pigment layer having high reflection characteristics on the antistatically treated transparent film, and secondly forming a layer having a pearl pigment and a fluorescent dye on the transparent adhesive thereon, and thirdly polarizing it By including the process of laminating with a film, the light-diffusion reflection type polarizing plate which has a high reflection characteristic can be manufactured.
<실시예 1,2><Example 1,2>
광확산반사투과형 편광판의 투명필름으로는 광학적 투명성이 있는 제전처리된 투명필름을 사용하고, 이러한 물질로는 (메타)아크릴계 수지, 폴리카보네이트, 아세테이트, 폴리에스터, 폴리스티렌, 폴리우레탄 등의 고분자 재료에 대전방지제 처리(코팅 혹은 포함)함으로써 얻는다. 그리고, 투명필름의 은백색 도포층은 열경화성 수지에 알루미늄분 안료를 혼합분산 도포하여 이루어진다. 다음의 표에는 배합을 달리하여 제조된 실시예 1 및 실시예 2의 편광판의 밝기효과가 나타나 있다. 투명필름 위에는 광확산투과 및 심미적 반사효과를 주기 위하여 진주안료를 투명점착물질에 혼합하여 도포함과 동시에 편광판을 합지하여 액정표시장치에 부착하여 광특성을 평가하였다. As the transparent film of the light diffusing reflective type polarizing plate, an antistatically treated transparent film having optical transparency is used, and as such a material, a polymer such as (meth) acrylic resin, polycarbonate, acetate, polyester, polystyrene, polyurethane, etc. Obtained by antistatic treatment (coating or inclusion). The silver white coating layer of the transparent film is obtained by mixing and dispersing an aluminum powder pigment onto a thermosetting resin. The following table shows the brightness effect of the polarizing plate of Example 1 and Example 2 prepared by varying the formulation. On the transparent film, pearlescent pigments were mixed with a transparent adhesive material to give light diffusion and aesthetic reflection effect, and at the same time, a polarizing plate was laminated and attached to a liquid crystal display device to evaluate optical characteristics.
<비교예 1-6><Comparative Example 1-6>
알루미늄분 안료 대신에 백색입자로서 이산화티탄, 실리카, 탄산칼슘을 사용하여 실시예들과 동일한 방법으로 비교예 1 내지 비교예 6의 편광판을 제조하여 광특성을 평가하고 그 결과를 다음의 표 1에 나타내었다. Titanium dioxide, silica, and calcium carbonate were used as white particles instead of the aluminum powder pigment to prepare polarizing plates of Comparative Examples 1 to 6 in the same manner as in Examples, and the optical properties thereof were evaluated, and the results are shown in Table 1 below. Indicated.
[표 1]TABLE 1
상기 표 1로부터 알 수 있듯이, 알류미늄분 안료가 포함된 쪽이 액정표시장치 패널상의 밝기 효과가 우수함을 알 수 있다. As can be seen from Table 1, it can be seen that the one containing the aluminum powder pigment is excellent in the brightness effect on the liquid crystal display panel.
본 발명에 따른 광확산반사투과형 편광판에 의하면, 다른 비금속 안료보다 우수한 특성, 즉 우수한 반사특성, 은폐력, 피복력, 방청력 등의 기능을 가질 뿐만 아니라 스파클링효과 및 플로트효과를 도모할 수 있는 알루미늄분 안료를 스테아린산, 올레인산 또는 아민계 알콜 화합물로 표면처리하여 열경화성수지에 분산혼합하여 제전처리된 투명필름위에 도포하여 형성된 알루미늄분 안료층을 가짐으로써 투과 및 반사를 동시에 나타낼 수 있어 고반사에 의한 액정표시장치의 시감적 밝기가 우수한 효과를 얻을 수 있다. According to the light diffusing reflecting polarizing plate according to the present invention, an aluminum powder pigment having not only superior properties to other nonmetallic pigments, that is, excellent reflecting properties, hiding power, coating power, antirust property, etc., but also sparkling and floating effects can be achieved. Surface treatment with stearic acid, oleic acid or amine alcohol compound, dispersed and mixed in thermosetting resin and coated on antistatically treated transparent film to have an aluminum powder layer formed, which can simultaneously show transmission and reflection. The visual brightness of the can achieve an excellent effect.
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| KR100680127B1 (en) * | 2005-01-08 | 2007-02-07 | 도레이새한 주식회사 | Light-diffusing sheet for back light unit of liquid crystal display |
| KR100700489B1 (en) * | 2005-04-27 | 2007-03-28 | 삼성에스디아이 주식회사 | Back light unit and fbricating method of the same |
| KR100840106B1 (en) * | 2006-12-27 | 2008-06-19 | 한국조폐공사 | The security thread detectable with laser |
| KR101583888B1 (en) | 2013-12-19 | 2016-01-08 | 현대자동차주식회사 | A coating composition with improved sense of sparkle and coating method using it |
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| KR19980068299A (en) * | 1997-02-17 | 1998-10-15 | 한형수 | Manufacturing Method of Optical Acid Film for TFT-LCD |
| KR0163017B1 (en) * | 1995-01-20 | 1999-01-15 | 한형수 | Method for manufacturing reflection type polarized sheet |
| KR100220494B1 (en) * | 1991-08-29 | 1999-09-15 | 고오사이 아끼오 | Dye-containing polarizing film |
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| KR880003199A (en) * | 1986-08-01 | 1988-05-14 | 도날드 밀러 셀 | Retro-reflective sheet with enhanced gloss |
| KR100220494B1 (en) * | 1991-08-29 | 1999-09-15 | 고오사이 아끼오 | Dye-containing polarizing film |
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| WO2017179913A3 (en) * | 2016-04-12 | 2018-08-02 | 주식회사 포스코 | High quality textured composite resin composition and galvanized steel sheet coated with composite resin composition |
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