WO2006009381A1 - Appareil d'affichage d'image stereoscopique - Google Patents

Appareil d'affichage d'image stereoscopique Download PDF

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Publication number
WO2006009381A1
WO2006009381A1 PCT/KR2005/002321 KR2005002321W WO2006009381A1 WO 2006009381 A1 WO2006009381 A1 WO 2006009381A1 KR 2005002321 W KR2005002321 W KR 2005002321W WO 2006009381 A1 WO2006009381 A1 WO 2006009381A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
layer
stereoscopic image
display apparatus
image display
Prior art date
Application number
PCT/KR2005/002321
Other languages
English (en)
Inventor
In-Kyu Park
Original Assignee
Anoxis, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anoxis, Inc. filed Critical Anoxis, Inc.
Publication of WO2006009381A1 publication Critical patent/WO2006009381A1/fr

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Classifications

    • 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
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/30—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving parallax barriers
    • G02B30/31—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving parallax barriers involving active parallax barriers
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells

Definitions

  • the present invention relates to a stereoscopic image display apparatus, and more particularly, to a stereoscopic image display apparatus capable of reducing a viewing distance by using a front type parallax barrier.
  • a stereoscopic image display apparatus is classified into a stereoscopic image display apparatus using a polarized goggle and a stereoscopic image display apparatus not using a polarized goggle.
  • the stereoscopic image display apparatus using the polarized-goggle has problems in that it is inconvenient to wear the polarized goggle.
  • wearing the polarized goggle for a long time, for example, one or more hours may cause eye-associated diseases. Therefore, the stereoscopic image display apparatus using the polarized-goggle has not been widely used.
  • the stereoscopic image display apparatus not using the polarized-goggle is classified into a lenticular lens type, a hologram type, and a parallax barrier type.
  • the lenticular lens and hologram types of stereoscopic image display apparatuses have highly complicated structures and high production costs, so that these stereoscopic image display ap ⁇ paratuses may be used for special purposes.
  • the actively researched and developed one is the parallax barrier type of stereoscopic image display apparatus.
  • the parallax barrier stereoscopic image display apparatus has been developed and used at recent.
  • the parallax barrier stereoscopic image display apparatus have been actively researched and developed since LCD, PDP, and organic EL display apparatuses were invented.
  • rear type parallax barrier stereoscopic image display apparatuses are com ⁇ flashally provided.
  • the rear type parallax barrier stereoscopic image display apparatus denotes a stereoscopic image display apparatus of which a parallax barrier is disposed behind an image display panel.
  • the conventional rear type parallax barrier stereoscopic image display apparatuses have problems of low brightness, complicated production processes, and high production cost.
  • the conventional rear type parallax barrier stereoscopic image display apparatuses and problems thereof are described in detail in PCT/KR03/01415 and PCT/KR03/01537 which are Patent Applications filed by the inventor of the present invention.
  • any practical front type stereoscopic image display appa ratus was not provided before the inventor invented the front type parallax barrier stereoscopic image display apparatus disclosed in the aforementioned Patent Ap ⁇ plications.
  • a conventional front type stereoscopic image display apparatus is an apparatus having some problems which the inventor tried to solve. Disclosure of Invention Technical Problem
  • FlG. 1 is a schematic cross sectional view showing a general two-dimensional image liquid crystal display panel.
  • the two-dimensional image liquid crystal display panel 10 includes a first substrate
  • the two-dimensional image liquid crystal display panel 10 may be constructed with a TFT (thin film transistor) LCD panel.
  • TFT thin film transistor
  • firs switching devices of the first switching device layer 13 are TFTs. Since structure and operations of the TFT LCD panel are well known to the ordinarily skill in the art, the structure and operation thereof are simply described.
  • the rear polarizing layer 11 has a function of polarizing white light emitting from a backlight (not shown).
  • the first and second substrates 12 and 16 are made of a glass.
  • the first substrate 12 has a function as an underlying layer for the first switching device layer 13 and a pixel electrode layer (not shown).
  • the TFTs are arrayed in a shape of matrix. In response to an image signal, the TFTs are driven to form an image (two-dimensional image).
  • a pixel electrode layer made of ITO or the like is disposed under the first switching device layer 13.
  • the second substrate 16 has a function as an underlying layer used to from the color filter layer 15 or the like. In addition, the second substrate 16 also has a function of protecting liquid crystals from an external impact. In addition, the second substrate also has a function of preventing external oxygen and moisture from penetrating into the liquid crystals. For the reason, the second substrate is made of a thick glass material having a thickness of about 0.5 to 0.7 mm.
  • the color filter layer 15 stacked on the rear surface of the second substrate 16 has a predetermined color pattern of RGB color filters.
  • a common electrode layer made of ITO or the like is disposed under the color filter layer 15.
  • a voltage supplied through a wire 17 is applied between the pixel electrode layer and the common electrode layer, liquid crystals interposed therebetween is aligned, and an image is represented according to On and Off of the first switching devices of the first switching device layer 13.
  • the first liquid crystal layer 14 formed by injection liquid crystals are interposed between the first switching device layer 13 and the color filter layer 15, more specifically, between the first switching device layer 130 and the common electrode layer.
  • an alignment layer for aligning the liquid crystals is provided.
  • Light passing through the first liquid crystal layer 14 has a predetermined color according to the RGB color filter which the light passes through.
  • a two-dimensional image is formed on the two-dimensional image display panel 10.
  • the two-dimensional image needs to have a left eye image and a right eye image.
  • FIG. 2 is a schematic cross sectional view showing a general parallax barrier liquid crystal display panel.
  • the parallax barrier liquid crystal display panel 20 includes at least a third substrate 22 having a rear polarizing layer 21 stacked on a rear surface thereof and a transparent electrode layer 23 stacked on a front surface thereof, a protective layer 25, a second liquid crystal layer 24 interposed between the transparent electrode layer 23 and the protective layer 25.
  • a counter electrode layer (not shown) is disposed under the protective layer 25.
  • a front polarizing layer 28 is disposed above the protective layer 25.
  • a plurality of transparent electrodes are disposed in stripe in the transparent electrode layer 230.
  • a plurality of counter electrodes are disposed in the counter electrode layer to face the plurality of the transparent electrodes.
  • parallax barrier The elements disposed in stripe and having the light blocking and passing function i s called a parallax barrier. Due to the parallax barrier, the left and right eye images displayed on the two-dimensional image liquid crystal display panel 10 are incident on the left and right eyes, so that the stereoscopic image can be seen by observer's eyes.
  • the parallax barrier liquid crystal display panel 200 may be constructed with an
  • the parallax barrier liquid crystal display panel 200 may be constructed with an LCD panel using STN (super-twisted nematic) liquid crystals or FTN (film compensated super twisted nematic) liquid crystals.
  • the protective layer 25 must be constructed with a thick layer in order to endure an external impact.
  • the protective layer 25 has a thickness in a range of from 0.55 to 1.1 mm.
  • FIG. 3 is a schematic cross sectional view showing a conventional front type parallax barrier stereoscopic image display apparatus.
  • the conventional stereoscopic image display apparatus is constructed by attaching the parallax barrier liquid crystal display panel 20 to a front portion of the two- dimensional image liquid crystal display panel 10.
  • the stereoscopic image display apparatus having the construction is called a front type parallax barrier stereoscopic image display apparatus.
  • the conventional stereoscopic image display apparatus may be constructed by attaching the front polarizing layer 18 of the two-dimensional image liquid crystal display panel 10 shown in FIG. 1 and a rear polarizing layer 21 of the parallax barrier liquid crystal display panel 20 shown in FIG. 2, since the front polarizing layer 18 and rear polarizing layer 21 has the same functions and operations, one of them may be removed.
  • the polarizing layers are shown with an in ⁇ termediate polarizing layer 18'.
  • a distance ⁇ between the image and the parallax barrier corresponds to a distance from the first liquid crystal layer 14 to the second liquid crystal layer 24.
  • a color filter layer 15 As shown in the figure, between the first liquid crystal layer 14 and the second liquid crystal layer 24, a color filter layer 15, a second substrate 16, an in- termediate polarizing layer 18', a third substrate 22, and a transparent electrode layer 23 are disposed.
  • the color filter layer 15 is a thin layer (for example, a deposited Cr layer) deposited on the second substrate, the thickness of the color filter layer is negligible in an approximate calculation of the distance ⁇ between the image and the parallax barrier.
  • the protective layer on which the ITO layers are stacked is collectively called a protective layer. Therefore, hereinafter, in calculation of the distance ⁇ between the image and the parallax barrier, the thickness of the color filter layer 15 is included in the thickness of the second substrate 16.
  • the second substrate 16, the intermediate polarizing layer 18', and the third substrate 22 have thicknesses of 0.7 mm, 0.3 mm, and 0.7 mm, respectively.
  • the total thickness is typically about 1.7 mm.
  • the second substrate 16 has a thickness of 0.5 mm
  • the intermediate polarizing layer 18' has a thickness of 0.1 to 0.3 mm
  • third substrate 22 has a thickness of 0.5 mm.
  • the total thickness is typically about 1.3 mm.
  • the distance ⁇ between the image and the parallax barrier cannot be less than 1.3 mm.
  • the viewing distance L is determined with the distance ⁇ between the image and the parallax barrier, an inter-eye distance E, and a pixel width P by using the following Equation 1.
  • the pixel width P is a width of a pixel of the image display apparatus. As can be understood from Equation 1, the pixel width P is inversely proportional to the viewing distance L. If the pixel width P is reduced, image resolution increases, but the viewing distance L is too long. In other word, the pixel width P and the viewing distance L have a trade-off relation. Typically, the pixel width P of about 100 ⁇ m is utilized for the image display apparatus for the monitor, and the pixel width of about 60 ⁇ m is utilized for the image display apparatus for the mobile terminal.
  • the viewing distance L of the stereoscopic image display apparatus for the monitor is about 1.1 m
  • the viewing distance L of the stereoscopic image display apparatus for the mobile terminal is about 1.3 m.
  • the viewing distance L of the front type parallax barrier stereoscopic image display apparatus has the viewing distance is about 1.2 m.
  • the viewing distance of 1.2 m means that an observer can see the stereoscopic image at a position separated by 1.2 m from the image display apparatus.
  • the viewing distance of 1.2 m may not cause a problem in case of a TV set constructed with the front type parallax barrier stereoscopic image display apparatus. Since the observer is generally located at a relatively distant position from the TV set, the observer can watch a 3D stereoscopic image display on the TV set constructed with the front type parallax barrier stereoscopic image display apparatus.
  • the viewing distance of 1.2 m causes a critical problem in case of a computer monitor constructed with the front type parallax barrier stereoscopic image display apparatus.
  • a gamer plays a 3D game on the computer monitor while operating a joystick and typing commands on the keyboard. Since an average reach of human beings is 70 cm or less, it is impossible for the gamer to play the 3D game with accurately seeing and discriminating the 3D stereoscopic image displayed by the front type parallax barrier stereoscopic image display apparatus having the viewing distance L of 1.2 m.
  • the viewing distance of 1.2 m causes a critical problem in case of a mobile terminal such as a mobile phone and a PDA constructed with the front type parallax barrier stereoscopic image display apparatus.
  • a mobile terminal such as a mobile phone and a PDA constructed with the front type parallax barrier stereoscopic image display apparatus.
  • the size of the screen of the mobile terminal it is impossible to discriminate the 3D stereoscopic image displayed on the screen of mobile terminal constructed with the front type parallax barrier stereoscopic image display apparatus having the viewing distance L of 1.2 m.
  • the present invention provides a front type parallax barrier stereoscopic image display apparatus capable of reducing a viewing distance.
  • a stereoscopic image display apparatus comprising: a two-dimensional image liquid crystal display panel comprising at least a first substrate having a rear polarizing layer stacked on a rear surface thereof and a first switching device layer stacked on a front surface thereof, a second substrate having a color filter layer stacked on a surface thereof, and a first liquid crystal layer interposed between the first switching device layer and the color filter layer; a parallax barrier liquid crystal display panel comprising at least a third substrate having a front polarizing layer stacked on a front surface thereof and a transparent electrode layer stacked on a rear surface thereof, a protective layer, and a second liquid crystal layer interposed between the transparent electrode layer and the protective layer; and an intermediate polarizing layer interposed between the protective layer of the parallax barrier liquid crystal display panel and the second substrate of the two-dimensional image liquid crystal display panel.
  • the two-dimensional image liquid crystal display panel may be a TFT liquid crystal display panel.
  • the parallax barrier liquid crystal display panel may be a TN liquid crystal display apparatus.
  • the parallax barrier liquid crystal display panel may be an STN liquid crystal display apparatus.
  • the parallax barrier liquid crystal display panel may be FTN liquid crystal display apparatus.
  • the protective layer may have a thickness of about 0.3 mm or less.
  • a distance between an image and a parallax barrier is reduced, so that it is possible to reduce a viewing distance.
  • FlG. 1 is a schematic cross sectional view showing a general two-dimensional image liquid crystal display panel.
  • FlG. 2 is a schematic cross sectional view showing a general parallax barrier liquid crystal display panel.
  • FlG. 3 is a schematic cross sectional view showing a conventional stereoscopic image display apparatus.
  • FlG. 4 is a schematic cross sectional view showing a stereoscopic image display apparatus according to an embodiment of the present invention. Best Mode for Carrying Out the Invention
  • FlG. 4 is a schematic cross sectional view showing a stereoscopic image display apparatus according to an embodiment of the present invention.
  • the stereoscopic image display apparatus includes a two-dimensional image liquid crystal display panel 100 and a parallax barrier liquid crystal display panel 200 which is disposed in front of the two-dimensional image liquid crystal display panel 100.
  • the stereoscopic image display apparatus having such a structure is referred to as a front type parallax barrier stereoscopic image display apparatus.
  • the two-dimensional image liquid crystal display panel 100 has a first substrate 120 having a rear polarizing layer 110 stacked on a rear surface thereof and a first switching device layer 130 stacked on a front surface thereof, a color filter layer 150, and a first liquid crystal layer 140 interposed between the first switching device layer 130 and the color filter layer 150.
  • the two-dimensional image liquid crystal display panel 100 is preferably constructed with a TFT (thin film transistor) LCD panel.
  • TFT thin film transistor
  • firs switching devices of the first switching device layer 130 are TFTs. Since structure and operations of the TFT LCD panel are well known to the ordinarily skill in the art, the structure and operation thereof are simply described.
  • the rear polarizing layer 110 has a function of polarizing white light emitting from a backlight (not shown).
  • the first substrate 120 is made of a glass and has a function as an underlying layer for the first switching device layer 130 and a pixel electrode layer (not shown).
  • the TFTs are arrayed in a shape of matrix. In response to an image signal, the TFTs are driven to form an image (two-dimensional image).
  • a pixel electrode layer made of ITO or the like is disposed under the first switching device layer 130.
  • the color filter layer 150 has a predetermined pattern of RGB color filters.
  • a common electrode layer made of ITO or the like is disposed under the color filter layer 150.
  • a voltage supplied through a wire 170 is applied between the pixel electrode layer and the common electrode layer, liquid crystals interposed therebetween is aligned, and an image is represented according to On and Off of the first switching devices of the first switching device layer 130.
  • the first liquid crystal layer 140 formed by injection liquid crystals are interposed between the first switching device layer 130 and the color filter layer 150, more specifically, between the first switching device layer 130 and the common electrode layer.
  • an alignment layer for aligning the liquid crystals is provided.
  • Light passing through the first liquid crystal layer 140 has a predetermined color according to the RGB color filter which the light passes through.
  • a two-dimensional image is formed on the two-dimensional image display panel 10. In order to form a stereoscopic image formed by the stereoscopic image display apparatus, the two-dimensional image needs to have a left eye image and a right eye image.
  • the parallax barrier liquid crystal display panel 200 includes at least a third substrate 220 having a front polarizing layer 210 stacked on a front surface thereof and a transparent electrode layer 230 stacked on a rear surface thereof, a protective layer 250, a second liquid crystal layer 240 interposed between the transparent electrode layer 230 and the protective layer 250.
  • a counter electrode layer (not shown) is disposed on the protective layer 250.
  • a plurality of transparent electrodes are disposed in stripe in the transparent electrode layer 230.
  • a plurality of counter electrodes are disposed in the counter electrode layer to face the plurality of the transparent electrodes.
  • parallax barrier The elements disposed in stripe and having the light blocking and passing function is called a parallax barrier. Due to the parallax barrier, the left and right eye images displayed on the two-dimensional image liquid crystal display panel 100 are incident on the left and right eyes, so that the stereoscopic image can be seen by observer's eyes.
  • the parallax barrier liquid crystal display panel 200 may be constructed with an
  • the parallax barrier liquid crystal display panel 200 may be constructed with an LCD panel using STN (super-twisted nematic) liquid crystals or FTN (film compensated super twisted nematic) liquid crystals.
  • the protective layer 250 needs not to be constructed with a thick layer.
  • the protective layer 25 As descried above, in the conventional front type parallax barrier stereoscopic image display apparatus, since the conventional protective layer 25 (see FIG. 3) is provided as an upper layer of the stereoscopic image display apparatus, the protective layer 25 needs to endure an external impact, so that the protective layer must be constructed with a thick layer. Typically, the conventional protective layer 25 has a thickness in a range of from 0.55 to 1.1 mm. Unlike the conventional front type parallax barrier stereoscopic image display apparatus, in the present invention, the protective layer 250 is provided as an intermediate layer of the stereoscopic image display apparatus. In other words, the protective layer 250 needs not to be constructed with a thick layer for enduring an external impact. In the present invention, the external impact is prevented by using the second substrate 220. As a result, in the embodiment of the present invention, the protective layer 250 can be constructed with a thin layer having a thickness of 0.3 mm or less.
  • a distance ⁇ between the image and the parallax barrier corresponds to a distance from the first liquid crystal layer 140 to the second liquid crystal layer 240.
  • a color filter layer 150 As shown in the figure, between the first liquid crystal layer 140 and the second liquid crystal layer 240, a color filter layer 150, a second substrate 160, an intermediate polarizing layer 180', and a protective layer 250 are disposed.
  • the conventional third substrate 22 is removed between the first liquid crystal layer 140 and the second liquid crystal layer 240, and a thin layer, that is, the protective layer 250 is interposed between the between the first liquid crystal layer 140 and the second liquid crystal layer 240.
  • the wire 270 for the parallax barrier liquid crystal display panel 200 are provided to the third substrate 220 formed on a front surface side thereof.
  • the wire 270 for the parallax barrier liquid crystal display panel 200 is provided to the front surface side of third substrate 220, so that it is possible to more surely prevent occurrence of short-circuit between the wires.
  • the thickness of the conventional third substrate is about 0.7 mm for a monitor and about 0.5 mm for a typical mobile terminal.
  • the protective layer 250 according to the embodiment of the present invent has a thickness of 0.3 or less.
  • the second substrate 160, the intermediate polarizing layer 180' and protective layer 250 have thicknesses of 0.7 mm, 0.1, and 0.3 mm, respectively.
  • the total thickness is about 1.1 mm.
  • the distance ⁇ between the image and the parallax barrier becomes 1.1 mm.
  • the viewing distance L of the stereoscopic image display apparatus for the monitor is 70 cm. Therefore, the stereoscopic image display apparatus according to the embodiment of the present invention can be used for the monitor.
  • the second substrate 160, the intermediate polarizing layer 180' and protective layer 250 have thicknesses of 0.3 mm, 0.1 mm, and 0.3 mm, respectively.
  • the total thickness is about 0.7 mm or less.
  • the distance ⁇ between the image and the parallax barrier becomes 0.7 mm or less.
  • the focus of the stereoscopic image display apparatus can be formed in a range of from 40 to 90 cm, which is called a "diamond zone". If the focus is formed in the diamond zone, an observer, that is, a user of the mobile terminal can see the stereoscopic image displayed on the screen of the mobile terminal. Sine the viewing distance of 70 cm obtained by the stereoscopic image display apparatus for the mobile terminal according to the present invention belongs to the diamond zone, the observer can see the stereoscopic image.
  • the diamond zone is firstly contrived and proposed by the inventor of the present invention.
  • the viewing distance can be greatly reduced in comparison to the con ⁇ ventional technique. Therefore, it is possible to commercially a front type parallax barrier stereoscopic image display apparatus.
  • the wire 270 for the parallax barrier liquid crystal display panel 200 is provided to the third substrate 220 formed at the front surface side thereof, a separation distance from the wire 270 to the wire 170 for the two-dimensional image liquid crystal display panel 100 further increase, it is possible to prevent occurrence of short- circuit between the wires.
  • a distance between an image and a parallax barrier is reduced, so that it is possible to reduce a viewing distance.
  • unnecessary layers between the image and the parallax barrier are removed, it is possible to simplify production processes and reduce production cost.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention porte sur un appareil d'affichage d'image stéréoscopique. Cet appareil d'affichage d'image stéréoscopique comprend un panneau d'affichage à cristaux liquides d'images bidimensionnelles comprenant au moins un premier substrat présentant une couche de polarisation arrière empilée sur une surface arrière et une couche de premier dispositif de commutation empilée sur une surface avant, un second substrat présentant une couche de filtre coloré empilée sur une surface, et une première couche à cristaux liquides disposée entre la couche du premier dispositif de commutation et la couche de filtre coloré ; un panneau d'affichage à cristaux liquides barrière parallaxe comprenant au moins un troisième substrat possédant une couche de polarisation avant empilée sur une surface avant et une couche d'électrode transparente empilée sur une surface arrière, une couche de protection, et une seconde couche à cristaux liquides disposée entre le couche d'électrode transparente et la couche de protection ; et une couche de polarisation intermédiaire disposée entre la couche de protection du panneau d'affichage à cristaux liquides barrière parallaxe et le deuxième substrat du panneau d'affichage à cristaux liquides d'images bidimensionnelles.
PCT/KR2005/002321 2004-07-20 2005-07-19 Appareil d'affichage d'image stereoscopique WO2006009381A1 (fr)

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KR1020040056190A KR20060008452A (ko) 2004-07-20 2004-07-20 입체 영상 표시 장치
KR10-2004-0056190 2004-07-20

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
GB2433639A (en) * 2005-12-23 2007-06-27 Lg Philips Lcd Co Ltd Liquid crystal display device having two main viewing angles
WO2007083981A1 (fr) * 2006-01-23 2007-07-26 3Dis Co., Ltd. Dispositif d'affichage d'image stéréoscopique
JP2013182186A (ja) * 2012-03-02 2013-09-12 Japan Display West Co Ltd 表示装置、電子機器および貼り合わせ構造

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JPS60211418A (ja) * 1984-04-05 1985-10-23 Matsushita Electric Ind Co Ltd 立体表示装置
JPH0950019A (ja) * 1995-05-30 1997-02-18 Sanyo Electric Co Ltd 立体表示装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2433639A (en) * 2005-12-23 2007-06-27 Lg Philips Lcd Co Ltd Liquid crystal display device having two main viewing angles
GB2433639B (en) * 2005-12-23 2009-09-30 Lg Philips Lcd Co Ltd Liquid crystal display device and method of driving the same
WO2007083981A1 (fr) * 2006-01-23 2007-07-26 3Dis Co., Ltd. Dispositif d'affichage d'image stéréoscopique
US7990483B2 (en) 2006-01-23 2011-08-02 3Dis Co., Ltd. Stereoscopic image display apparatus
JP2013182186A (ja) * 2012-03-02 2013-09-12 Japan Display West Co Ltd 表示装置、電子機器および貼り合わせ構造

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