KR20000033321A - Phase difference compensation film and super twisted nematic lcd using the same - Google Patents
Phase difference compensation film and super twisted nematic lcd using the same Download PDFInfo
- Publication number
- KR20000033321A KR20000033321A KR1019980050159A KR19980050159A KR20000033321A KR 20000033321 A KR20000033321 A KR 20000033321A KR 1019980050159 A KR1019980050159 A KR 1019980050159A KR 19980050159 A KR19980050159 A KR 19980050159A KR 20000033321 A KR20000033321 A KR 20000033321A
- Authority
- KR
- South Korea
- Prior art keywords
- compensation film
- liquid crystal
- phase difference
- difference compensation
- patterns
- Prior art date
Links
Classifications
-
- 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
-
- 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
- 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
- G02F1/133632—Birefringent elements, e.g. for optical compensation with refractive index ellipsoid inclined relative to the LC-layer surface
-
- 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
- G02F1/1396—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 liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
- G02F1/1397—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 liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell the twist being substantially higher than 90°, e.g. STN-, SBE-, OMI-LC cells
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
Description
본 발명은 위상차 보상필름에 배향이 다른 패턴을 형성하므로, 그 패턴의 굴절률 차이를 이용하여 광 투과시 다색을 표현할 수 있도록 한 위상차 보상필름과 그를 이용한 STN(Super Twisted Nematic) 액정표시소자에 관한 것이다.The present invention relates to a retardation compensation film and a STN (Super Twisted Nematic) liquid crystal display using the retardation compensation film to form a multi-color pattern when transmitting light by using a difference in refractive index of the pattern to form a phase difference compensation film. .
STN 액정표시소자는 180。 이상의 비틀림각을 갖는 액정층을 이용하여 백라이트에서 조사된 광을 스위칭하고 편광판을 거쳐 출사되게 하거나, 혹은 외부 광이 상기 액정층의 스위칭 작용에 의해 반사층에서 되반사되어 다시 전면의 편광판으로 출사되는 광 효과를 이용하여 화상을 표시한다.STN liquid crystal display device uses a liquid crystal layer having a torsion angle of 180 ° or more to switch the light emitted from the backlight and exit through the polarizer, or external light is reflected back from the reflective layer by the switching action of the liquid crystal layer. An image is displayed using the light effect emitted to the front polarizing plate.
이러한 STN 액정표시소자는 칼라와 콘크라스트의 향상을 실현하기 위해 기본적으로 흑백(Black and White)의 바탕색이 요구되는 것이지만, 액정의 초비틀림 구조가 가지는 복굴절 효과에 의해 유색의 바탕색을 띄는 문제점이 있다. 이러한 점을 고려하여 종래에는 광학 보상 셀을 이용하여 STN 구동 셀의 위상차를 보상하고 있으나, 이것은 박막화에 적합하지 못한 구조이다.The STN liquid crystal display device basically requires a black and white background color in order to improve color and contrast, but has a problem of displaying a colored background color due to the birefringence effect of the super twisting structure of the liquid crystal. . In view of this point, conventionally, an optical compensation cell is used to compensate the phase difference of the STN driving cell, but this is not suitable for thinning.
그러므로 최근에는 위상차 보상필름을 사용하여 STN 구동 셀의 광학 위상차를 보상하고 있다. 예를 들어 미국 특허 US 5,760,859에는 고분자액정(LCP; liquid crystalline polymer)을 사용한 액정표시소자의 보상필름 제조방법이 개시되어 있는데, 이것은 복굴절 방향을 여러 방향으로 배향할 수 있는 특성을 갖추고 있다.Therefore, recently, the retardation compensation film is used to compensate the optical retardation of the STN driving cell. For example, US Pat. No. 5,760,859 discloses a method of manufacturing a compensation film for a liquid crystal display device using a liquid crystalline polymer (LCP), which has a property of oriented birefringence in various directions.
흑백의 바탕색이 실현된 STN 액정표시소자는 다시 칼라화를 위해 R, G, B의 3색 패턴으로 된 칼라필터를 이용하여, 액정층에 의해 스위칭 된 광을 투과시킴으로써 칼라 화상을 구현한다.STN liquid crystal display device, which realizes the background color of black and white, uses a color filter of three color patterns of R, G, and B for colorization, and transmits the light switched by the liquid crystal layer to realize a color image.
그러나 지금까지의 칼라 STN 액정표시소자는 앞에서 설명한 바와 같이 필수적으로 위상차 보상필름과 칼라필터를 갖추어야만 하므로, 구조가 복잡하고 박막화가 어려운 문제점이 있다. 또한 상기와 같은 이유로 제조 비용이 많이 드는 문제점도 수반하게 된다.However, the color STN liquid crystal display device thus far must have a phase difference compensation film and a color filter as described above. In addition, it is accompanied by a problem that the manufacturing cost is high for the above reasons.
상술한 종래 기술의 문제점을 해소하기 위한 것으로서, 본 발명은 위상차 보상필름의 굴절률 차이를 이용하여 색상을 표현할 수 있도록 하므로, 칼라필터를 제거하여 박막화 및 단순화를 실현하면서도 칼라 화상을 구현할 수 있도록 한 위상차 보상필름과 그를 이용한 STN 액정표시소자를 제공함에 그 목적을 두고 있다.In order to solve the above-mentioned problems of the prior art, the present invention enables the color to be expressed by using the difference in the refractive index of the retardation compensation film, the phase difference to realize the color image while realizing thinning and simplification by removing the color filter The object of the present invention is to provide a compensation film and an STN liquid crystal display device using the same.
이를 위하여 본 발명에서는 기재에 배향층을 도포하고 이것을 서로 다른 복수 방향으로 러빙하며 그 상부에 고분자액정을 도포 및 배향 처리하여 굴절률이 다른 소망의 패턴을 갖는 위상차 보상필름을 형성함을 특징으로 한다.To this end, the present invention is characterized in that a phase difference compensation film having a desired pattern having a different refractive index is formed by applying an alignment layer to a substrate, rubbing them in a plurality of different directions, and applying and aligning a polymer liquid crystal on the top thereof.
이렇게 형성된 위상차 보상필름은 액정 셀의 상부에 배치되고 편광판과 함께 어셈블리되어서 칼라 STN 액정표시소자를 구성한다.The phase difference compensation film thus formed is disposed on the liquid crystal cell and assembled together with the polarizer to form a color STN liquid crystal display device.
여기서 위상차 보상필름은 패턴의 굴절률을 조절하므로 종래의 칼라필터와 같은 R, G, B 3색 혹은 다색을 갖도록 형성할 수 있으며, 액정 셀의 스위칭 작용에 의해 조사되는 백라이트 혹은 반사광의 투과시 칼라 화상을 표시할 수 있다.Here, the phase difference compensation film adjusts the refractive index of the pattern, and thus may be formed to have three colors or R, G, and B colors as in the conventional color filter, and a color image upon transmission of backlight or reflected light irradiated by the switching action of the liquid crystal cell. Can be displayed.
도 1은 본 발명에 의한 수퍼 트위스티드 네마틱 액정표시소자를 도시한 전체 구성도.1 is an overall configuration diagram showing a super twisted nematic liquid crystal display device according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
2-위상차 보상필름 4-기재2-phase difference compensation film
6-배향층 8-고분자액정6-Oriented Layer 8-Polymer Liquid Crystal
10-액정 셀 12-편광판10-liquid crystal cell 12-polarizer
이하, 본 발명을 실현하기 위한 바람직한 실시예를 첨부 도면에 의거하여 보다 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment for implementing this invention is demonstrated in detail based on an accompanying drawing.
도 1은 본 발명의 위상차 보상필름을 이용한 STN 액정표시소자를 보여주고 있다.Figure 1 shows an STN liquid crystal display device using a phase difference compensation film of the present invention.
도면에서와 같이 본 발명의 위상차 보상필름(2)은 종래 기술의 문제점을 해소하기 위한 특징적인 것으로 광학 보상 역할과 함께, 굴절률 차이에 기인하는 다수 바탕색을 갖도록 하여 칼라필터의 기능을 포함하도록 한 것이다.As shown in the drawing, the retardation compensation film 2 of the present invention is characteristic to solve the problems of the prior art, and has a role of optical compensation, and has a plurality of background colors due to refractive index differences to include the function of a color filter. .
이를 위하여 본 발명에서는 위상차 보상필름(2)을 제조함에 있어, 수지 필름 혹은 글라스로 된 기재(4)에 배향층(6)을 도포하고, 이것을 러빙하여 서로 다른 복수 방향의 패턴을 갖도록 형성한 다음, 그 상부에 고분자액정(8)을 도포하고 이것을 열처리하므로 굴절률이 다른 소망의 패턴(C1, C2, C3)을 형성하고 있다.To this end, in the present invention, in manufacturing the retardation compensation film 2, the alignment layer 6 is applied to a resin film or glass substrate 4, and then rubbed to form a pattern having a plurality of different directions. Since the polymer liquid crystal 8 is applied to the upper portion and heat-treated, the desired patterns C1, C2, and C3 having different refractive indices are formed.
여기서 배향층(6)의 형성 방법은 소망 패턴을 갖는 마스크를 개재하여 UV광을 조사하는 광배향법을 사용할 수 있다. 또한 포토 리소그래피법을 사용하여 포토레지스트를 도포하고, 소망 패턴을 제거한 후 러빙하며, 이것을 반복하여 서로 다른 배향 각도를 갖는 복수 방향의 패턴을 형성할 수 있다.Here, the formation method of the orientation layer 6 can use the photo-alignment method which irradiates UV light through the mask which has a desired pattern. In addition, a photoresist is applied using a photolithography method, a desired pattern is removed and then rubbed, and this can be repeated to form a pattern in multiple directions having different orientation angles.
배향층(6)의 상부에 도포되는 고분자액정(8)은 액상으로 될 때까지 가열한 후 냉각함으로써 배향층(6)과 같게 배향되는 것이며, 이때 카이랄 도판트를 첨가함으로써 트위스트되게 할 수 있다.The polymer liquid crystal 8 applied on the upper part of the alignment layer 6 is oriented like the alignment layer 6 by heating and cooling until it becomes a liquid phase, whereby it can be twisted by adding a chiral dopant. .
이렇게 형성된 위상차 보상필름(2)은 비틀림에 의한 복굴절 효과로 특정 파장의 광을 선택적으로 강하게 투과시킴으로써 색을 표시할 수 있고, 각 패턴별로 임의로 배향 각도 및 굴절률 차이를 조정함으로써 다색을 표시할 수 있다. 이때 위상차 보상필름(2)은 적어도 2 이상의 패턴을 갖도록 형성할 수 있으며, 더욱 바람직하게는 종래의 칼라필터와 같이 R, G, B의 3색이 표시되도록 함이 좋다.The retardation compensation film 2 thus formed may display colors by selectively and strongly transmitting light having a specific wavelength due to the birefringence effect due to torsion, and may display multiple colors by arbitrarily adjusting the difference in orientation angle and refractive index for each pattern. . In this case, the retardation compensation film 2 may be formed to have at least two or more patterns, and more preferably, three colors of R, G, and B may be displayed as in the conventional color filter.
따라서 본 발명의 위상차 보상필름(2)은 3색(C1, C2, C3)을 조합함으로써 칼라를 구현할 수 있다.Therefore, the phase difference compensation film 2 of the present invention can realize a color by combining three colors (C1, C2, C3).
한편, 본 발명은 상술한 위상차 보상필름(2)을 구동 액정 셀(10) 및 편광판(12)과 함께 어셈블리함으로써 칼라 STN 액정표시소자를 구성할 수 있다.On the other hand, the present invention can form a color STN liquid crystal display by assembling the above-described phase difference compensation film 2 together with the driving liquid crystal cell 10 and the polarizing plate 12.
액정 셀(10)은 백라이트(도시생략)를 채용한 투과형의 경우, 기판(14)의 내측면에 정적 모티브로 배치되거나 또는 동적 모티브를 표현할 수 있도록 교차 배열된 매트릭스 구조의 투명 전극(16)을 형성하고 있으며, 그 내측면에 절연층(18)과 배향층(20)을 순차 적층 형성하고 있다. 양 기판(14)은 도시하지 않은 실링수단에 의해 어셈블리되어서 액정(22)이 주입될 공간을 형성하고 있다.In the case of a transmissive type employing a backlight (not shown), the liquid crystal cell 10 includes a transparent electrode 16 having a matrix structure that is arranged as a static motif on the inner surface of the substrate 14 or is arranged to express a dynamic motif. The insulating layer 18 and the alignment layer 20 are sequentially laminated on the inner surface thereof. Both substrates 14 are assembled by sealing means (not shown) to form a space in which the liquid crystal 22 is to be injected.
액정 셀(10)의 상부에는 위상차 보상필름(2)이 부착되는 바, 이것은 상, 하부의 투명 전극(16)이 교차하는 패턴과 위상차 보상필름(2)의 패턴(C1, C2, C3)이 일치되도록 배치하여 어셈블리 된다. 액정 셀(10)의 하부와 위상차 보상필름(2)의 상부에는 각각 편광판(12)이 부착된다.The retardation compensation film 2 is attached to the upper portion of the liquid crystal cell 10, which is a pattern in which the upper and lower transparent electrodes 16 intersect with the patterns C1, C2, and C3 of the retardation compensation film 2. Assembled and placed to match. The polarizer 12 is attached to the lower portion of the liquid crystal cell 10 and the upper portion of the phase difference compensation film 2, respectively.
또한 본 발명의 칼라 STN 액정표시소자는 반사형의 경우, 상기 액정 셀(10)을 구성함에 있어 하부 기판(14)에 반사막(도시생략)을 형성할 수 있으며, 이때에는 위상차 보상필름(2)의 상부에만 편광판(12)을 설치한 구성으로 이루어진다.In addition, in the color STN liquid crystal display device of the present invention, the reflective film (not shown) may be formed on the lower substrate 14 in the configuration of the liquid crystal cell 10, in which case the phase difference compensation film 2 may be formed. It consists of a configuration in which the polarizing plate 12 is installed only on the top.
이상에서 설명한 본 발명의 구성에 의거하여, 백라이트 혹은 외부 반사광은 액정 셀(10)의 스위칭 작용에 의해 전면으로 투과될 때 위상차 보상필름(2)의 패턴(C1, C2, C3)을 투과하면서 복굴절 효과에 의해 다색을 표시하게 되는 것이며, 그 색상을 조합하여 디스플레이 함으로써 칼라 화상을 구현하게 된다.Based on the configuration of the present invention described above, the backlight or the external reflected light is transmitted through the front by the switching action of the liquid crystal cell 10, while the birefringence while passing through the pattern (C1, C2, C3) of the phase difference compensation film 2 The effect is to display a multi-color, and by combining the colors to display a color image.
이상에서 설명한 구성 및 작용을 통하여 알 수 있듯이, 본 발명의 위상차 보상필름과 그를 이용한 슈퍼 트위스티드 네마틱 액정표시소자는 칼라필터의 역할을 겸비함으로써 종래 기술에서의 문제점을 실질적으로 해소함을 알 수 있다.As can be seen through the configuration and operation described above, it can be seen that the phase difference compensation film of the present invention and the super twisted nematic liquid crystal display device using the same have a role of a color filter to substantially solve the problems in the prior art.
즉 본 발명은 위상차 보상필름의 복굴절성을 이용하여 배향 각도가 다른 다색 패턴을 형성함으로써, 칼라필터 없이도 칼라 화상을 구현하는 효과를 얻을 수 있다.That is, the present invention forms a multicolored pattern having different orientation angles using the birefringence of the retardation compensation film, thereby obtaining the effect of realizing a color image without a color filter.
또 본 발명은 상기와 같은 이유로 액정표시소자의 구성을 단순화 및 박막화할 수 있는 것이며, 아울러 부품 수의 감소로 제조 비용을 절감하는 효과를 얻을 수 있다.In addition, the present invention can simplify and thin the configuration of the liquid crystal display device for the same reason as described above, and also can reduce the manufacturing cost by reducing the number of parts.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0050159A KR100502318B1 (en) | 1998-11-23 | 1998-11-23 | Phase difference compensation film and super twisted nematic liquid crystal display device using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0050159A KR100502318B1 (en) | 1998-11-23 | 1998-11-23 | Phase difference compensation film and super twisted nematic liquid crystal display device using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000033321A true KR20000033321A (en) | 2000-06-15 |
| KR100502318B1 KR100502318B1 (en) | 2005-10-26 |
Family
ID=19559264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-1998-0050159A KR100502318B1 (en) | 1998-11-23 | 1998-11-23 | Phase difference compensation film and super twisted nematic liquid crystal display device using the same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100502318B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100816337B1 (en) * | 2001-10-08 | 2008-03-24 | 삼성전자주식회사 | Liquid crystal display |
| KR100952004B1 (en) * | 2007-02-16 | 2010-04-08 | 도판 인사츠 가부시키가이샤 | Retardation substrate, method for production thereof, and liquid crystal display device |
| WO2011049326A2 (en) * | 2009-10-19 | 2011-04-28 | Lg Chem, Ltd. | Patterned retardation film and method for manufacturing the same |
| CN102667593A (en) * | 2009-10-19 | 2012-09-12 | 株式会社Lg化学 | Patterned retardation film and method for manufacturing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101347893B1 (en) | 2006-11-28 | 2014-01-16 | 엘지디스플레이 주식회사 | LCD with a dichroic filter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05323265A (en) * | 1992-05-25 | 1993-12-07 | Nippon Telegr & Teleph Corp <Ntt> | Polarization non-dependency type wavelength variable filter |
| JPH06160885A (en) * | 1992-11-17 | 1994-06-07 | Toshiba Corp | Liquid crystal display element |
| SG50569A1 (en) * | 1993-02-17 | 2001-02-20 | Rolic Ag | Optical component |
| JPH08334618A (en) * | 1995-06-02 | 1996-12-17 | Nitto Denko Corp | Phase difference film and its production and laminated polarizing plate |
| JP3360787B2 (en) * | 1996-12-02 | 2002-12-24 | シャープ株式会社 | 3D display device |
-
1998
- 1998-11-23 KR KR10-1998-0050159A patent/KR100502318B1/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100816337B1 (en) * | 2001-10-08 | 2008-03-24 | 삼성전자주식회사 | Liquid crystal display |
| KR100952004B1 (en) * | 2007-02-16 | 2010-04-08 | 도판 인사츠 가부시키가이샤 | Retardation substrate, method for production thereof, and liquid crystal display device |
| KR100957660B1 (en) * | 2007-02-16 | 2010-05-12 | 도판 인사츠 가부시키가이샤 | Retardation substrate, method for production thereof, and liquid crystal display device |
| KR101010484B1 (en) * | 2007-02-16 | 2011-01-21 | 도판 인사츠 가부시키가이샤 | Retardation substrate, method for production thereof, and liquid crystal display device |
| US8101249B2 (en) | 2007-02-16 | 2012-01-24 | Toppan Printing Co., Ltd. | Retardation substrate, method of manufacturing the same, and liquid crystal display |
| WO2011049326A2 (en) * | 2009-10-19 | 2011-04-28 | Lg Chem, Ltd. | Patterned retardation film and method for manufacturing the same |
| WO2011049326A3 (en) * | 2009-10-19 | 2011-11-03 | Lg Chem, Ltd. | Patterned retardation film and method for manufacturing the same |
| CN102667593A (en) * | 2009-10-19 | 2012-09-12 | 株式会社Lg化学 | Patterned retardation film and method for manufacturing the same |
| US8610852B2 (en) | 2009-10-19 | 2013-12-17 | Lg Chem, Ltd. | Patterned retardation film and method for manufacturing the same |
| CN102667593B (en) * | 2009-10-19 | 2015-06-17 | 株式会社Lg化学 | Patterned retardation film and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100502318B1 (en) | 2005-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5179457A (en) | Liquid crystal display device with birefringent film between the substrates of the liquid crystal | |
| KR100290938B1 (en) | Reflective color polarization filter and reflective color liquid crystal display device using the same | |
| US6295113B1 (en) | Twisted nematic color liquid crystal display | |
| JP3071658B2 (en) | Liquid crystal display device | |
| KR19980023974A (en) | Reflective Guest Host Liquid Crystal Display | |
| JP2933261B2 (en) | Liquid crystal display | |
| KR100283842B1 (en) | Liquid crystal display panel | |
| JPH07318940A (en) | Liquid crystal display device | |
| KR100502318B1 (en) | Phase difference compensation film and super twisted nematic liquid crystal display device using the same | |
| JP3654317B2 (en) | Color LCD panel | |
| JPH08152618A (en) | Color liquid crystal display device | |
| JPH0876077A (en) | Electric field control diffraction grating and liquid crystal element | |
| JPS63279229A (en) | Liquid crystal display device | |
| JP2003149632A (en) | Liquid crystal display device and color filter therefor | |
| KR20000073098A (en) | A liquid crystal display device and a method for fabricating the same | |
| JP3449829B2 (en) | Liquid crystal display device | |
| JP3074123B2 (en) | Liquid crystal display device | |
| JPH04188113A (en) | Liquid crystal display panel | |
| KR100488962B1 (en) | Dstn mode lcd device | |
| JPH1039296A (en) | Reflection type liquid crystal display device | |
| JP2858142B2 (en) | LCD color display | |
| JP2860806B2 (en) | LCD color display | |
| KR950029816A (en) | Color liquid crystal display device and liquid crystal display device | |
| JPH07294910A (en) | Color liquid crystal display element | |
| JPH0444006A (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20110629 Year of fee payment: 7 |
|
| LAPS | Lapse due to unpaid annual fee |