KR20020041382A - Liquid-crystal shutter of the 3d image display apparatus - Google Patents

Liquid-crystal shutter of the 3d image display apparatus Download PDF

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KR20020041382A
KR20020041382A KR1020020025229A KR20020025229A KR20020041382A KR 20020041382 A KR20020041382 A KR 20020041382A KR 1020020025229 A KR1020020025229 A KR 1020020025229A KR 20020025229 A KR20020025229 A KR 20020025229A KR 20020041382 A KR20020041382 A KR 20020041382A
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South Korea
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glass plate
liquid crystal
crystal shutter
ito
image display
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KR1020020025229A
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Korean (ko)
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이성중
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김용범
주식회사 토비스
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Priority to KR1020020025229A priority Critical patent/KR20020041382A/en
Publication of KR20020041382A publication Critical patent/KR20020041382A/en

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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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
    • C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
    • C03B29/08—Glass sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • 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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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mathematical Physics (AREA)

Abstract

PURPOSE: A liquid crystal shutter of a stereo image display device is provided to remove moire phenomenon to produce a stereo image display device including an improved liquid crystal shutter. CONSTITUTION: A liquid crystal shutter of a stereo image display device includes the first plate(21), the second glass plate, a liquid crystal layer interposed between the first and second glass plates, and a polarizer(22) attached onto the outer surfaces of the first and second glass substrates. An ITO film is formed on the inner side of the second glass plate, and an ITO film(23) is formed on an opaque slit region of the inner side of the first glass plate. An insulating material(24) having the same refractivity as the refractivity of ITO is coated on a transparent slit region of the inner side of the first glass plate, without having a distance from the ITO film formed on the opaque slit region.

Description

입체영상 디스플레이장치에서의 액정셔터{LIQUID-CRYSTAL SHUTTER OF THE 3D IMAGE DISPLAY APPARATUS}Liquid crystal shutter in stereoscopic image display device {LIQUID-CRYSTAL SHUTTER OF THE 3D IMAGE DISPLAY APPARATUS}

본 발명은 입체영상 디스플레이장치에서의 액정셔터에 관한 것으로서, 더욱 상세하게는 패러랙스 배리어 방식을 이용한 입체영상 디스플레이장치에서 입체영상과 일반영상을 선택적으로 전환할 수 있도록 액정셔터를 이용하는 경우에, 일반영상의 시청 시에 발생하는 무아레(moire)현상을 제거한 개선된 액정셔터에 관한 것이다.The present invention relates to a liquid crystal shutter in a stereoscopic image display apparatus, and more particularly, when a liquid crystal shutter is used to selectively switch stereoscopic images and general images in a stereoscopic image display apparatus using a parallax barrier method. The present invention relates to an improved liquid crystal shutter that eliminates the moire phenomenon that occurs when viewing an image.

입체영상의 구현방법에 관해서는 오래 전부터 여러 가지 방법이 제안되어 왔다. 그 중에서도 패러랙스 배리어 방식은 시청자가 편광글라스 등의 특수안경을 착용하지 않고도 입체영상을 시청할 수 있다는 점에서 매우 큰 장점을 가지고 있다. 더욱이, 액정표시장치 기술의 발달과 더불어 기계식 셔터가 액정셔터로 대체되고, 이에 따라 입체영상과 일반영상을 선택적으로 전환하는 것도 가능하게 됨으로써, 고가이면서 한정적으로만 사용할 수 있는 입체영상 디스플레이장치가 일반인에게도 보급될 수 있는 계기를 마련하게 되었다.As for the method of realizing stereoscopic images, various methods have been proposed for a long time. Among them, the parallax barrier method has a great advantage in that the viewer can watch a stereoscopic image without wearing special glasses such as polarized glass. Moreover, with the development of liquid crystal display technology, mechanical shutters are replaced by liquid crystal shutters, and thus, it is also possible to selectively switch stereoscopic images and general images, thereby making it possible to use expensive and limited stereoscopic image display devices. It also provided an opportunity to spread to.

도 1은 패러랙스 배리어 방식에 의한 입체영상 디스플레이장치와 이를 이용한 입체영상의 구현방법을 설명하기 위한 구성도이다.1 is a block diagram illustrating a stereoscopic image display apparatus using a parallax barrier method and a method of implementing a stereoscopic image using the same.

도 1에 도시된 바와 같이, 입체영상 디스플레이장치는 백라이트 광원(40), 영상패널(30) 및 액정셔터(20)로 구성되어 있다. 액정셔터(20)는 전기신호를 인가하였을 때, 소정의 폭을 가지고 불투명해지는 불투명슬릿부와 이 불투명슬릿부 사이에는 투명한 투명슬릿부가 교대로 배치되어 있다.As shown in FIG. 1, the stereoscopic image display apparatus includes a backlight light source 40, an image panel 30, and a liquid crystal shutter 20. In the liquid crystal shutter 20, when the electric signal is applied, transparent transparent slit portions are alternately disposed between the opaque slit portions which become opaque with a predetermined width and the opaque slit portions.

시청자(10)는 액정셔터(20)의 투명슬릿부를 통해 영상패널(30)을 보게 되는데, 이때, 시청자(10)의 좌안(L)은 액정셔터(20)의 투명슬릿부를 통해 영상패널(30)의 좌안영역(Lp)을 보게 되고, 시청자(10)의 우안(R)은 액정셔터(20)의 투명슬릿부를 통해 영상패널(30)의 우안영역(Rp)을 보게 된다.The viewer 10 sees the image panel 30 through the transparent slit portion of the liquid crystal shutter 20, wherein the left eye L of the viewer 10 passes through the transparent slit portion of the liquid crystal shutter 20. ), The right eye R of the viewer 10 sees the right eye region Rp of the image panel 30 through the transparent slit of the liquid crystal shutter 20.

이와 같이, 시청자(10)의 좌안(L)과 우안(R)은 각각 영상패널(30)의 다른 영역을 보게 되는데, 이때 영상패널(30)은 시청자(10)의 좌안과 우안에 대응되는 영상을 각각 좌안영역(Lp)과 우안영역(Rp)에 표시하게 된다. 이로써, 시청자는 양안시차(binocular parallax)에 의해 입체감을 느끼게 된다.In this way, the left eye L and the right eye R of the viewer 10 see different regions of the image panel 30, respectively, in which the image panel 30 is an image corresponding to the left and right eyes of the viewer 10. Are displayed in the left eye area Lp and the right eye area Rp, respectively. As a result, the viewer feels a three-dimensional effect due to binocular parallax.

상기와 같은 종래의 입체영상 디스플레이장치에서의 액정셔터(20)의 구조를 도 2를 참조하여 보다 상세하게 살펴보겠다.The structure of the liquid crystal shutter 20 in the conventional stereoscopic image display apparatus as described above will be described in more detail with reference to FIG. 2.

도 2에 도시된 바와 같이, 종래의 입체영상 디스플레이장치에서의 액정셔터(20)는 제1 유리판(21)과 제2 유리판(26), 및 제1 유리판(21)과 제2 유리판(26)의 사이에 액정층(25)을 구비하여 이루어진다. 또한, 제1 유리판(21) 및 제2 유리판(26)의 외측면에는 각각 편광판(22, 27)이 부착되어 있고, 제2 유리판(26)의 내측면에는 전면에 산화인듐주석(ITO:Indium Tin Oxide)(이하, ITO라 칭한다)층이 형성되어 있으며, 제1 유리판(21)의 내측면에는 불투명슬릿부를 형성하는 영역에만 ITO층(23)이 형성되어 있다.As shown in FIG. 2, the liquid crystal shutter 20 of the conventional stereoscopic image display apparatus includes a first glass plate 21 and a second glass plate 26, and a first glass plate 21 and a second glass plate 26. The liquid crystal layer 25 is provided in between. In addition, polarizing plates 22 and 27 are attached to the outer surfaces of the first glass plate 21 and the second glass plate 26, respectively, and indium tin oxide (ITO: Indium) is formed on the front surface of the second glass plate 26. Tin Oxide (hereinafter referred to as ITO) layer is formed, and the ITO layer 23 is formed only in the region where the opaque slit portion is formed on the inner surface of the first glass plate 21.

이로써, 입체영상 디스플레이장치가 입체영상 모드인 때에는, 제1 유리판(21)의 ITO층(23)이 형성된 부분만이 불투명하게 되어, 불투명슬릿부로서의 역할을 행하게 되고, 일반영상 모드인 때에는, 제1 유리판(21)의 ITO층(23)이 형성된 부분이 투명하게 되어, 시청자는 일반영상을 시청하게 된다.Thus, when the stereoscopic image display apparatus is in the stereoscopic image mode, only the portion where the ITO layer 23 of the first glass plate 21 is formed becomes opaque, and serves as an opaque slit portion. 1 The portion in which the ITO layer 23 of the glass plate 21 is formed becomes transparent, and the viewer can watch the general video.

그러나, 이러한 구조의 액정셔터(20)를 일반영상 모드로 사용하는 경우에, 제1 유리판(21)의 ITO층이 형성된 영역과 그렇지 않은 영역간에 위상차가 발생하여 무아레 현상이 발생하는 문제가 있다.However, when the liquid crystal shutter 20 having such a structure is used in the normal image mode, a phase difference occurs between a region where the ITO layer of the first glass plate 21 is formed and a region where the liquid crystal shutter 20 is not formed, thereby causing a moire phenomenon.

무아레(moire) 현상이란, 두 개이상의 주기적인 패턴이 겹쳐질 때 만들어지는 간섭무늬(interference fringe)를 지칭하는 것으로, 비슷한 주기를 갖는 여러 개의 격자가 겹쳐질 때, 고유한 무늬를 나타내는 것을 말한다. 무아레 무늬(moire fringe)를 우리는 일상생활에서 어렵지 않게 발견할 수 있는데, 예컨대 겹쳐진 모기장이나 겹쳐져 있는 레이스 커튼 등에서 실제로 물체가 가지고 있는 격자 모양 이외에 그보다 넓은 간격을 가지는 새로운 무늬를 볼 수 있는데, 이러한 현상을 무아레 현상이라 할 수 있다.The moire phenomenon refers to an interference fringe formed when two or more periodic patterns overlap, and refers to a unique pattern when multiple gratings having similar periods overlap. We can find moire fringes in our daily lives without difficulty. For example, we can see new patterns with a wider gap than the lattice shape of an object, such as overlapping mosquito nets and overlapping lace curtains. Moire phenomenon can be called.

종래의 액정셔터를 이용하는 경우에 상기와 같은 무아레 현상이 발생하여 시청자는 일반영상 모드에서 어른거리는 무늬를 보게 된다.When the conventional liquid crystal shutter is used, the moire phenomenon as described above occurs and the viewer sees an adultish pattern in the general image mode.

그 원인은 도 3을 통해 설명하겠다.The cause will be described with reference to FIG. 3.

도 3에서는, 액정셔터가 일반영상 모드인 경우에 백라이트 광원에서 영상패널을 통과한 광은 제1 유리판(21)을 통과하게 되는데, 이때 제1 유리판(21)을 통과한 광은 다시 ITO층이 형성된 영역과 ITO층이 형성되지 않은 영역을 통과하면서 각각의 영역을 통과한 광사이에 위상차가 발생하게 된다.In FIG. 3, when the liquid crystal shutter is in the normal image mode, light passing through the image panel from the backlight light source passes through the first glass plate 21. In this case, the light passing through the first glass plate 21 is again in the ITO layer. The phase difference is generated between the light passing through each of the regions while passing through the formed region and the region where the ITO layer is not formed.

즉, 동일한 파형의 광(R1, R2)이 액정셔터를 통과하면서 ITO층(23)을 통과한 광(R1')과 ITO층을 통과하지 않은 광(R2') 사이에 위상차가 발생하게 된다. 이는 ITO층이 형성된 영역과 그렇지 않은 영역 사이에 굴절률의 차이 때문이며 이로 인해 무아레 현상이 발생하게 되는 것이다.That is, the phase difference is generated between the light R1 'having passed through the liquid crystal shutter and the light R1' having passed through the ITO layer 23 and the light R2 'having not passed through the ITO layer. This is due to the difference in refractive index between the region where the ITO layer is formed and the region where the ITO layer is not formed, and this causes moire phenomenon.

본 발명은 상기와 같은 문제를 해결하기 위해 안출된 것으로, 제1 유리판에 ITO층이 형성되지 않은 영역에 ITO와 굴절률이 같은 물질을 코팅함으로써, 무아레현상을 제거하여 보다 개선된 액정셔터 및 이를 구비한 입체영상 디스플레이장치를 제공하는 것을 그 목적으로 한다.The present invention has been made to solve the above problems, by coating a material having the same refractive index as the ITO in the region where the ITO layer is not formed on the first glass plate, by eliminating the moire phenomenon and having an improved liquid crystal shutter and It is an object of the present invention to provide a stereoscopic image display apparatus.

도 1은 종래의 패러랙스 배리어 방식에 의한 입체영상 디스플레이장치를 설명하기 위한 구성도,1 is a configuration diagram for explaining a three-dimensional image display apparatus according to a conventional parallax barrier method,

도 2는 종래의 액정셔터의 구조를 나타내는 구조도,2 is a structural diagram showing a structure of a conventional liquid crystal shutter;

도 3은 종래의 액정셔터에 의해 발생되는 무아레 현상을 설명하기 위한 설명도,3 is an explanatory diagram for explaining a moire phenomenon caused by a conventional liquid crystal shutter;

도 4는 본 발명에 의한 액정셔터를 나타내는 (a)평면도 및 (b)정면도이다.4 is a (a) plan view and (b) front view showing a liquid crystal shutter according to the present invention.

상기와 같은 목적을 달성하기 위해, 본 발명에 의한 액정셔터는, 제1 유리판과 제2 유리판이 구비되고, 상기 제1 유리판과 상기 제2 유리판의 사이에는 액정층이 구비되며, 상기 제1 유리판 및 상기 제2 유리판의 외측면에는 편광판이 부착되어 있고, 상기 제2 유리판의 내측면에는 전면에 산화인듐주석(ITO:Indium Tin Oxide)층이 형성되고, 상기 제1 유리판의 내측면에는 불투명슬릿부를 형성하는 영역에 ITO층이 형성되어 있으며, 상기 제1 유리판의 내측면에서 투명슬릿부에 해당하는 영역에는 절연성이고 또 ITO와 굴절률이 같은 물질이 상기 불투명슬릿부를 형성하는 영역의 ITO층과 간격을 두지 않고 코팅되어 있는 것을 특징으로 한다.In order to achieve the above object, the liquid crystal shutter according to the present invention includes a first glass plate and a second glass plate, a liquid crystal layer is provided between the first glass plate and the second glass plate, and the first glass plate. And a polarizing plate is attached to an outer surface of the second glass plate, an indium tin oxide (ITO) layer is formed on an inner surface of the second glass plate, and an opaque slit on the inner surface of the first glass plate. An ITO layer is formed in the region forming the portion, and an insulating material having the same refractive index as the ITO in the region corresponding to the transparent slit portion on the inner surface of the first glass plate is spaced apart from the ITO layer in the region forming the opaque slit portion. It is characterized in that it is coated without.

여기서, 상기 제1 유리판의 내측면에서 투명슬릿부에 해당하는 영역에 코팅되는 절연성이고 또 ITO와 굴절률이 같은 물질은 이산화지크코늄(ZrO2)인 것은 본 발명의 다른 특징으로 된다.Here, an insulating material coated on a region corresponding to the transparent slit portion on the inner surface of the first glass plate and having the same refractive index as that of ITO is zirconium dioxide (ZrO 2 ) as another feature of the present invention.

이하, 첨부된 도면을 참조하여 보다 상세하게 설명하겠다.Hereinafter, with reference to the accompanying drawings will be described in more detail.

도 4는 본 발명에 의한 입체영상 디스플레이장치에서의 액정셔터의 일례를 도시한 구성도이다.4 is a configuration diagram showing an example of the liquid crystal shutter in the stereoscopic image display apparatus according to the present invention.

도시되지는 않았지만, 본 예에서의 액정셔터는 그 사이에 액정층을 구비한 제1 유리판과 제2 유리판을 구비하여 이루어지고, 제1 및 제2 유리판의 외측면에는 편광판이 부착되어 있으며, 제2 유리판의 내측면에는 전면에 ITO층이 형성되어 있다.Although not shown, the liquid crystal shutter in this example comprises a first glass plate and a second glass plate having a liquid crystal layer therebetween, and polarizing plates are attached to outer surfaces of the first and second glass plates. The ITO layer is formed in the whole surface on the inner surface of 2 glass plates.

본 실시예에서는 투명슬릿부의 영역에 절연성이면서 ITO와 굴절률이 동일한물질(24')을 코팅하여 액정셔터를 구성한다.In the present exemplary embodiment, the liquid crystal shutter is formed by coating an insulating material 24 'having the same refractive index as that of ITO in the region of the transparent slit portion.

절연성이면서 ITO와 굴절률이 동일한 물질로서는 예컨대 이산화지크코늄(ZrO2)이 있다. ITO와 이산화지크코늄의 굴절률은 모두 2.0인 것으로 알려져 있다.Examples of the insulating material having the same refractive index as that of ITO include, for example, zirconium dioxide (ZrO 2). It is known that the refractive indices of ITO and zirconium dioxide are both 2.0.

본 실시예에서는 투명슬릿부의 영역에 굴절률이 ITO와 동일하고 절연성 물질로 코팅하기 때문에 무아레 현상은 완전히 제거된다.In this embodiment, the moire phenomenon is completely eliminated because the refractive index is the same as that of ITO and coated with an insulating material in the region of the transparent slit portion.

도 4의 실시예에서의 액정셔터는 먼저 제1 유리기판에 불투명슬릿부를 형성하는 ITO층을 종래의 액정셔터의 제조공정과 동일한 공정으로 제조한다. 그 위에 감광성 레지스트를 다시 도포한 후, 불투명슬릿부를 형성하는 ITO층을 형성할 때 사용한 마스크와 그 음영이 정반대로 되는 마스크를 이용하여 노광하고, 현상 및 에칭에 의해 투명슬릿부의 영역이 노출되도록 한다. 다음으로, 절연성이면서 ITO와 동일한 굴절률을 가지는 물질을 ITO층이 형성되지 않은 영역에 선택적으로 코팅을 한 후, 불투명슬릿부의 표면에 있던 현상된 감광성 레지스트를 제거하면, 본 액정셔터는 불투명영역과 투명영역 간의 틈이 전혀 없고 굴절률도 똑같기 때문에 무아레 현상을 완전히 제거할 수 있다.In the liquid crystal shutter of the embodiment of FIG. 4, first, an ITO layer forming an opaque slit portion on a first glass substrate is manufactured by the same process as that of a conventional liquid crystal shutter. After applying the photosensitive resist on it again, the mask used when forming the ITO layer forming the opaque slit portion is exposed using a mask whose shade is opposite to that of the mask, and the areas of the transparent slit portion are exposed by development and etching. . Next, if the insulating material having the same refractive index as that of ITO is selectively coated on a region where the ITO layer is not formed, and then the developed photosensitive resist on the surface of the opaque slit portion is removed, the liquid crystal shutter is opaque and transparent. Since there is no gap between the regions and the refractive index is the same, the moire phenomenon can be completely eliminated.

이상에서 설명한 바와 같이, 본 발명에 의한 입체영상 디스플레이장치에서의 액정셔터를 사용하는 경우에는, 액정셔터를 통과한 광이 동일한 위상을 가지기 때문에 무아레 현상이 발생하지 않음으로써, 액정셔터를 구비한 입체영상 디스플레이장치를 이용하여 일반영상을 시청하는 경우에 어른거림이나 물결무늬가 나타나지않아 보다 깨끗한 화면을 시청할 수 있다.As described above, in the case of using the liquid crystal shutter in the stereoscopic image display apparatus according to the present invention, since the light passing through the liquid crystal shutter has the same phase, the moire phenomenon does not occur, so that the stereoscopic liquid crystal shutter is provided. In the case of watching a general image using the image display device, a whitish wave or a wave pattern does not appear, so that a clearer screen can be viewed.

Claims (3)

패러랙스 배리어(parrallax barrier) 방식으로 입체영상을 구현하는 디스플레이장치에서 영상패널의 전면에 설치되어, 입체영상모드에서는 소정 간격으로 불투명슬릿을 형성하고, 일반영상모드에서는 불투명슬릿부에 인가 신호를 차단함으로써, 입체영상과 일반영상을 선택적으로 전환할 수 있도록 구성된 액정셔터에 있어서,It is installed on the front of the image panel in a display device that implements stereoscopic images by using a parallax barrier method, and forms opaque slits at predetermined intervals in the stereoscopic image mode, and blocks an applied signal to the opaque slit portion in the normal image mode. In the liquid crystal shutter configured to selectively switch stereoscopic images and general images, 제1 유리판과 제2 유리판이 구비되고,A first glass plate and a second glass plate are provided, 상기 제1 유리판과 상기 제2 유리판의 사이에는 액정층이 구비되며,The liquid crystal layer is provided between the first glass plate and the second glass plate, 상기 제1 유리판 및 상기 제2 유리판의 외측면에는 편광판이 부착되어 있고,Polarizing plates are attached to outer surfaces of the first glass plate and the second glass plate, 상기 제2 유리판의 내측면에는 전면에 산화인듐주석(ITO:Indium Tin Oxide)층이 형성되고, 상기 제1 유리판의 내측면에는 불투명슬릿부를 형성하는 영역에 ITO층이 형성되어 있으며,An indium tin oxide (ITO) layer is formed on an inner surface of the second glass plate, and an ITO layer is formed on an inner surface of the first glass plate to form an opaque slit. 상기 제1 유리판의 내측면에서 투명슬릿부에 해당하는 영역에는 절연성이고 또 ITO와 굴절률이 같은 물질이 상기 불투명슬릿부를 형성하는 영역의 ITO층과 간격을 두지 않고 코팅되어 있는 것을 특징으로 입체영상 디스플레이장치에서의 액정셔터.In the region corresponding to the transparent slit portion on the inner side of the first glass plate, a material having an insulating property and having the same refractive index as that of ITO is coated without being spaced apart from the ITO layer in the region forming the opaque slit portion. Liquid crystal shutter in the device. 제 1 항에 있어서,The method of claim 1, 상기 제1 유리판의 내측면에서 투명슬릿부에 해당하는 영역에 코팅되는 절연성이고 또 ITO와 굴절률이 같은 물질은 이산화지크코늄(ZrO2)인 것을 특징으로 하는 입체영상 디스플레이장치에서의 액정셔터.The insulating material coated on a region corresponding to the transparent slit portion on the inner surface of the first glass plate and the material having the same refractive index as that of ITO is zirconium dioxide (ZrO 2 ) liquid crystal shutter in the stereoscopic image display apparatus. 제 1 항 또는 제 2 항에 의한 액정셔터를 구비하여 이루어진 입체영상 디스플레이장치.A stereoscopic image display device comprising the liquid crystal shutter according to claim 1.
KR1020020025229A 2002-05-08 2002-05-08 Liquid-crystal shutter of the 3d image display apparatus KR20020041382A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8115805B2 (en) 2004-02-25 2012-02-14 Samsung Mobile Display Co., Ltd. Stereoscopic image display device and method for driving the same
US7940342B2 (en) 2004-07-27 2011-05-10 Pavonine Inc. Stereoscopic TFT-LCD with wire grid polarizer affixed to internal surfaces substrates
US8184216B2 (en) 2004-07-27 2012-05-22 Pavonine Inc. Stereoscopic TFT-LCD with wire grid polarizer affixed to internal surfaces substrates
US8233104B2 (en) 2004-07-27 2012-07-31 Pavonine Inc. Stereoscopic TFT-LCD with wire grid polarizer affixed to internal surfaces substrates
US8269904B2 (en) 2004-07-27 2012-09-18 Pavonine Inc. Stereoscopic TFT-LCD with wire grid polarizer affixed to internal surfaces substrates
US7404642B2 (en) 2004-11-29 2008-07-29 Samsung Electronics Co., Ltd. Autostereoscopic display
KR100786862B1 (en) * 2004-11-30 2007-12-20 삼성에스디아이 주식회사 Barrier device, three dimensional image display using the same and method thereof
US8373617B2 (en) 2004-11-30 2013-02-12 Samsung Display Co., Ltd. Barrier device and stereoscopic image display using the same
KR100910969B1 (en) * 2005-01-05 2009-08-05 엘지전자 주식회사 A Method for Displaying Three-Dimensional Images and An Apparatus for the Same
US7889152B2 (en) 2005-02-03 2011-02-15 Samsung Electronics Co., Ltd. Direct viewing type stereoscopic image display apparatus which can remove moire pattern
KR100828217B1 (en) * 2006-04-06 2008-05-07 비오이 하이디스 테크놀로지 주식회사 Liquid crystal display device
US8610838B2 (en) 2011-11-18 2013-12-17 Samsung Display Co., Ltd. Display device having particular barrier portion

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