KR20000052045A - Liquid crstal display - Google Patents
Liquid crstal display Download PDFInfo
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- KR20000052045A KR20000052045A KR1019990002846A KR19990002846A KR20000052045A KR 20000052045 A KR20000052045 A KR 20000052045A KR 1019990002846 A KR1019990002846 A KR 1019990002846A KR 19990002846 A KR19990002846 A KR 19990002846A KR 20000052045 A KR20000052045 A KR 20000052045A
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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
- G02F1/13363—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
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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
- G02F1/133365—Cells in which the active layer comprises a liquid crystalline polymer
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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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
- G02F1/1395—Optically compensated birefringence [OCB]- cells or PI- cells
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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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13775—Polymer-stabilized liquid crystal layers
Abstract
Description
본 발명은 액정표시소자에 관한 것으로서, 좀 더 상세하게는 액정셀의 바깥쪽에 편광판과 함께 배치되는 보상필름을 액정셀의 내부로 적층하여서 전체 액정표시소자의 두께를 줄임과 동시에 정확한 광학적 보상이 가능한 액정표시소자에 관한 것이다.The present invention relates to a liquid crystal display device, and more particularly, by stacking a compensation film disposed together with a polarizing plate on the outside of the liquid crystal cell into the liquid crystal cell to reduce the thickness of the entire liquid crystal display device and at the same time accurate optical compensation is possible. It relates to a liquid crystal display device.
액정표시소자는 저구동전압 및 저소비전력, 액정패널의 평탄성 등에 의해 디지털 속목시계, 페이져, 휴대폰 및 랩탑컴퓨터 등에 다양하게 적용됨과 아울러 벽걸이형 TV 등에 응용되고 있는 평판 디스플레이로, 배열방향의 변화에 따라 입사광의 반사특성이 변화되는 액정의 유전이방성에 의해 소망하는 문자나 영상을 구현한다.Liquid crystal display device is a flat panel display that is applied to various digital clocks, pagers, mobile phones, laptop computers, etc. due to low driving voltage, low power consumption, flatness of liquid crystal panel, and so on. The desired character or image is realized by the dielectric anisotropy of the liquid crystal in which the reflection characteristic of incident light changes.
특히, 슈퍼 트위스트 네마틱 액정표시소자는 디스플레이되는 시야각을 넓히고 대용량의 정보를 취급하기 위해서 90도 이상으로 트위스트시킨 네마틱 액정을 함유한 액정셀의 양측면에 편광판이 배치된 구조이다.In particular, the super twisted nematic liquid crystal display device has a structure in which polarizing plates are disposed on both sides of a liquid crystal cell containing a nematic liquid crystal twisted at 90 degrees or more to widen the displayed viewing angle and handle a large amount of information.
여기서, 액정표시소자로 입사되는 빛은 편광판과 액정셀을 통과하며 트위스트되어 일정한 바탕색을 구현하게 되고, 이는 컬러 디스플레이를 구현하는 장애가 됨으로 흑백 상태로 디스플레이되는 것이 바람직하다.Here, the light incident on the liquid crystal display device is twisted while passing through the polarizing plate and the liquid crystal cell to implement a constant background color, which is preferably a black and white state because it is a barrier to implement a color display.
이렇게 흑백화를 구현하기 위한 방법으로 180도 트위스트 액정표시소자의 편광판 전후면 각도를 직각으로 하여 편광 중심 파장을 상쇄하는 OMI방식과, 디스플레이되는 액정셀과 동일한 액정표시소자를 이용하는 더블 레이어 방식, 보상필름을 이용하는 방식 등이 있다.As a method for realizing black and white, the OMI method of canceling the polarization center wavelength by right-angled the polarizing plate front and rear angles of the 180 degree twisted liquid crystal display device, and the double layer method using the same liquid crystal display device as the displayed liquid crystal cell, compensation And the like using a film.
여기서 보상필름을 사용한 STN 액정표시소자의 일부 구조를 도 3에 나타내고 있다.3 shows a partial structure of the STN liquid crystal display device using the compensation film.
STN 액정이 함유된 액정셀(2)의 상면에는 보호막(4)으로 감싸진 보상필름(6)과 상부 편광판(8)이 서로 접착된 채 배치되고, 액정셀(2)의 저면에는 역시 보호막(10)이 코팅된 하부 편광판(12)을 부착하는 구조로 된다.On the upper surface of the liquid crystal cell 2 containing the STN liquid crystal, the compensation film 6 and the upper polarizing plate 8 wrapped with the protective film 4 are disposed to adhere to each other, and the protective film ( 10) is attached to the lower polarizing plate 12 is coated.
상기 액정셀(2)은 평행하게 배치된 상부기판(14)과 하부기판(16)의 마주보는 내측면에 데이터 신호와 공통 신호를 발생시키는 투명전극(18)이 패터닝되어지는데, 특히 하부기판(16)에는 블랙 매트릭스(20)를 사이에 둔 칼라필터(22)와 0.3㎛정도의 오버코트층(24)이 순차적으로 적층되고 그 위로 투명전극(18)이 패터닝된다. 오버코트층(24)은 에폭시수지 또는 폴리이미드수지로 평활층을 이루어 그 위로 패터닝되는 투명전극(18)이 평탄화되도록 하는 것이다.The liquid crystal cell 2 is patterned on the inner surface of the upper substrate 14 and the lower substrate 16 arranged in parallel to the transparent electrode 18 for generating a data signal and a common signal. In particular, the lower substrate ( 16, a color filter 22 having a black matrix 20 interposed therebetween, and an overcoat layer 24 having a thickness of about 0.3 μm are sequentially stacked, and the transparent electrode 18 is patterned thereon. The overcoat layer 24 forms a smooth layer of epoxy resin or polyimide resin to planarize the transparent electrode 18 patterned thereon.
이러한 구조로 된 액정표시소자가 원하는 칼라의 화면을 얻기 위해서는 필수적으로 보상필름(6)과 편광판(8) 및 STN 액정에 의한 빛의 편광으로 그레이 스케일이 이루어져야 한다.In order for a liquid crystal display device having such a structure to obtain a screen having a desired color, a gray scale must be made by polarization of light by the compensation film 6, the polarizing plate 8, and the STN liquid crystal.
이를 위하여 구비된 보상필름(6)은 여러 개 적층될수록 콘트라스트는 좋아지나 광투과율은 떨어짐으로 액정의 트위스트 각도에 따라 적절한 개수로 배치되어지되, 현재는 2개 내지 3개정도가 사용되며 편광판(8)에 부착되어 빛이 위상차를 가지며 투사되도록 하는 것이다.The more the compensation film 6 provided for this purpose, the better the contrast, but the light transmittance decreases, so that the appropriate number is arranged according to the twist angle of the liquid crystal. ) So that light is projected with a phase difference.
그러나, 편광판과 보상필름이 일체로 제조되는 과정은 보상필름의 양쪽면에 접착제를 도포하고 하부에는 편광판과 보호막을, 상부에는 보호막을 붙여야 됨으로 액정표시소자의 제작비를 상승시키는 요인일 뿐만 아니라 두께도 두껍게 할 수밖에 없다.However, the process of integrally manufacturing the polarizing plate and the compensation film is not only a factor in increasing the manufacturing cost of the liquid crystal display device by applying an adhesive to both sides of the compensation film, a polarizing plate and a protective film on the lower part, and a protective film on the upper part. There is no choice but to thicken it.
상술한 문제점들을 해결하기 위해서 본 발명은 액정표시소자의 슬림화 및 제조단가를 낮출 수 있는 액정표시소자를 제공하는 것이 목적이다.SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a liquid crystal display device which can reduce the slimming and manufacturing cost of the liquid crystal display device.
이를 위하여, 본 발명의 액정표시소자는 평행하게 배치된 상부기판과 하부기판의 사이로 액정이 주입되는 액정셀에서, 상부기판 혹은 하부기판에 액정 폴리머가 적층되고 그 위로 투명전극이 패터닝되는 구조이다.To this end, the liquid crystal display of the present invention has a structure in which a liquid crystal polymer is laminated on an upper substrate or a lower substrate and a transparent electrode is patterned thereon in a liquid crystal cell in which a liquid crystal is injected between the upper and lower substrates arranged in parallel.
여기서, 상부기판 혹은 하부기판과 액정 폴리머의 사이에 블랙 매트릭스를 사이에 둔 칼라필터가 패터닝될 수 있다.Here, a color filter having a black matrix between the upper substrate or the lower substrate and the liquid crystal polymer may be patterned.
또한, STN 액정표시소자의 경우에는 액정 폴리머와 투명전극 사이에 매개층이 부가되며, 그 매개층은 SiO2일 수 있다.In the STN liquid crystal display device, an intermediate layer is added between the liquid crystal polymer and the transparent electrode, and the intermediate layer may be SiO 2 .
이에 따라, 액정표시소자의 두께를 얇게 제조할 수 있음은 물론 오버코트층을 제거하여 제작비가 절감되며 액정과 인접하므로 정확한 광학적 보상이 가능하였다.Accordingly, the thickness of the liquid crystal display device can be manufactured as well as the manufacturing cost is reduced by removing the overcoat layer, and the optical compensation is possible since the liquid crystal display is adjacent to the liquid crystal.
도 1은 본 발명에 따른 액정표시소자의 구조를 도시한 부분 단면도,1 is a partial cross-sectional view showing the structure of a liquid crystal display device according to the present invention;
도 2는 본 발명에 따른 또 다른 액정표시소자의 구조를 도시한 부분 단면도,2 is a partial cross-sectional view showing the structure of another liquid crystal display device according to the present invention;
도 3은 종래 공지된 액정표시소자의 구조를 도시한 부분 단면도.3 is a partial cross-sectional view showing the structure of a conventionally known liquid crystal display device.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
100 : 액정셀102, 104 : 편광판100: liquid crystal cell 102, 104: polarizing plate
108, 110 : 상부기판, 하부기판112 : 액정108, 110: upper substrate, lower substrate 112: liquid crystal
114, 122 : 투명전극120 : 액정 폴리머114, 122: transparent electrode 120: liquid crystal polymer
124 : 매개층124: intermediate layer
이하 본 발명에 따른 바람직한 실시예를 첨부된 도면에 의거하여 상세히 설명한다. 도 1은 본 발명에 관련된 액정표시소자의 구조를 부분 단면도로 나타내고 있고, 도 2는 또 다른 액정표시소자의 구조를 도시하고 있다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 shows a structure of a liquid crystal display device according to the present invention in a partial sectional view, and FIG. 2 shows a structure of another liquid crystal display device.
액정표시소자는 액정셀(100)의 양측면에 상부 편광판(102)과 하부 편광판(104)이 배치되는 구조이다.The liquid crystal display device has a structure in which the upper polarizing plate 102 and the lower polarizing plate 104 are disposed on both side surfaces of the liquid crystal cell 100.
상기 상부 편광판(102)으로 입사된 광은 일축 방향의 광으로 투과되며 액정셀(100)에서 트위스트되어 타원편광되고 상부 편광판에 대해 90°도 배치되는 하부 편광판(104)에서 다시 일축 방향의 광으로 투사되어진다. 이런 두 편광판(102)(104)의 양측면에는 보호막(106)이 부착되어 스크레치를 방지한다.The light incident on the upper polarizing plate 102 is transmitted to the light in the uniaxial direction, and is twisted in the liquid crystal cell 100 to be elliptically polarized and disposed at 90 ° with respect to the upper polarizing plate. Projected. The protective film 106 is attached to both sides of the two polarizing plates 102 and 104 to prevent scratches.
상기 액정셀(100)은 통상 평행하게 배치된 상부기판(108)과 하부기판(110)이 실란트로 접착되어 공간을 형성하는 구조이며, 공간의 내부로는 액정(112)이 주입되어진다. 특히, 액정(112)은 투과되는 빛을 90도 이상의 각으로 트위스트시킨 네마틱 액정인데, 경우에 따라서는 하이 콘트라스트를 유지하기 위하여 240도 정도를 트위스트시킨 것을 사용한다.The liquid crystal cell 100 is a structure in which the upper substrate 108 and the lower substrate 110 arranged in parallel are generally bonded to the sealant to form a space, and the liquid crystal 112 is injected into the space. In particular, the liquid crystal 112 is a nematic liquid crystal in which the transmitted light is twisted at an angle of 90 degrees or more. In some cases, the liquid crystal 112 is twisted at about 240 degrees in order to maintain high contrast.
이러한 액정(112)과 접하는 상부기판(108)의 표면에는 데이터 신호를 형성하는 투명전극(114)이 패터닝되어지고, 하부기판(110)의 상면 즉 액정(112)과 인접한 표면에는 블랙 매트릭스(116)를 사이에 둔 칼라필터(118)가 적층되며, 이 칼라필터(118)의 위로 본 발명에 따른 액정 폴리머(120)가 0.1㎛의 균일도를 가지며 적층되는 것이다. 이 액정 폴리머(120)는 액정(112)이 가지는 타원편광을 상쇄시켜 직선편광으로 변환시키는 위상차를 보상시키는 역할이다.The transparent electrode 114 forming the data signal is patterned on the surface of the upper substrate 108 in contact with the liquid crystal 112, and the black matrix 116 is disposed on the upper surface of the lower substrate 110, that is, the surface adjacent to the liquid crystal 112. The color filter 118 is sandwiched between the layers, and the liquid crystal polymer 120 according to the present invention is stacked on the color filter 118 with a uniformity of 0.1 mu m. The liquid crystal polymer 120 compensates for the phase difference that the elliptical polarization of the liquid crystal 112 is canceled and converted into linearly polarized light.
상기 액정 폴리머(120)는 액정셀(100)의 외측에 부착되던 종래 방식과 달리 액정(112)과 접해진 상태임으로 정확한 위상차의 보상이 가능하다.Unlike the conventional method in which the liquid crystal polymer 120 is attached to the outside of the liquid crystal cell 100, the liquid crystal polymer 120 is in contact with the liquid crystal 112, thereby making it possible to accurately compensate for the phase difference.
이러한 액정 폴리머(120)의 상면은 평활한 면이 되도록 하여 그 위로 공통 신호를 형성하는 투명전극(122)을 패터닝시킨다.The upper surface of the liquid crystal polymer 120 is a smooth surface to pattern the transparent electrode 122 forming a common signal thereon.
특히, 액정 폴리머(120)와 투명전극(122)이 패터닝된 후 액정(112)의 배향 각도를 형성하기 위해 행해지는 러빙 시 투명전극(122)이 액정 폴리머(120)에서 박리되지 않고 견고히 부착될 수 있도록 액정 폴리머(120)의 표면 위에 SiO2로 된 매개층(124)을 코팅하고 그 위에 투명전극(122)을 패터닝시킬 수 있다. 상술한 SiO2는 액정 폴리머(120)와 투명전극(122) 모두에 친화력을 가진다.In particular, when the liquid crystal polymer 120 and the transparent electrode 122 are patterned, the transparent electrode 122 may be firmly attached to the liquid crystal polymer 120 without being peeled off when rubbing is performed to form an alignment angle of the liquid crystal 112. The intermediate layer 124 of SiO 2 may be coated on the surface of the liquid crystal polymer 120, and the transparent electrode 122 may be patterned thereon. SiO 2 described above has affinity for both the liquid crystal polymer 120 and the transparent electrode 122.
이렇게 구성되는 액정셀(100)은 종래 평탄층을 이루었던 오버코트층이 액정 폴리머(120)로 대체된 구조임을 알 수 있다. 이는 전체 액정표시소자의 두께를 얇게 할 수 있을 뿐만 아니라 액정(112)과 인접하게 됨으로 정확한 광학적 보상이 가능하게 되는 구조이다.It can be seen that the liquid crystal cell 100 configured as described above has a structure in which an overcoat layer that has previously formed a flat layer is replaced by the liquid crystal polymer 120. This structure not only reduces the thickness of the entire liquid crystal display device but also closes the liquid crystal 112 so that accurate optical compensation is possible.
상술한 바와 같이 액정 폴리머를 사용하는 액정표시소자의 구조는 보상필름을 사용하는 모든 액정표시소자에 적용이 가능함을 밝혀두는 바이다.As described above, the structure of the liquid crystal display device using the liquid crystal polymer may be applied to all liquid crystal display devices using the compensation film.
이상에서 살펴본 바와 같이 본 발명에 따른 실시예는 종래의 문제점을 실질적으로 해소하고 있다.As described above, the embodiment of the present invention substantially solves the conventional problems.
즉, 하부기판에 적층된 칼라필터의 위로 액정 폴리머를 적층함으로써 액정에 의한 타원편광을 직선편광시킬 수 있게 된다.That is, by laminating the liquid crystal polymer on the color filter stacked on the lower substrate, the elliptical polarization by the liquid crystal can be linearly polarized.
이 때, 액정 폴리머는 대략 0.1㎛의 두께로 적층되어 종래 0.3㎛두께의 오버코트층에 비해 층두께를 얇게 할 수 있고, 아울러 종래 편광판에 접착된 보상필름을 오버코트층으로 대체하였음으로 제조원가도 절감할 수 있게 되었다.In this case, the liquid crystal polymer may be laminated to a thickness of approximately 0.1 μm to make the layer thickness thinner than that of the conventional 0.3 μm thick overcoat layer, and the manufacturing cost may be reduced by replacing the compensation film adhered to the polarizing plate with the overcoat layer. It became possible.
또한, 액정을 통과한 광의 위상차를 보상하는 액정 폴리머가 액정과 접한 구조로 되기 때문에 정확한 광학적 보상이 가능하였다.In addition, since the liquid crystal polymer that compensates the phase difference of the light passing through the liquid crystal has a structure in contact with the liquid crystal, accurate optical compensation was possible.
Claims (4)
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| KR1019990002846A KR20000052045A (en) | 1999-01-29 | 1999-01-29 | Liquid crstal display |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100392866B1 (en) * | 2000-12-06 | 2003-07-28 | 주식회사 하이닉스반도체 | Data communication interface device between third generation and second generation mobile communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100392866B1 (en) * | 2000-12-06 | 2003-07-28 | 주식회사 하이닉스반도체 | Data communication interface device between third generation and second generation mobile communication system |
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