WO2014196726A1 - Dispositif d'affichage d'image autostéréoscopique - Google Patents

Dispositif d'affichage d'image autostéréoscopique Download PDF

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Publication number
WO2014196726A1
WO2014196726A1 PCT/KR2014/001972 KR2014001972W WO2014196726A1 WO 2014196726 A1 WO2014196726 A1 WO 2014196726A1 KR 2014001972 W KR2014001972 W KR 2014001972W WO 2014196726 A1 WO2014196726 A1 WO 2014196726A1
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WIPO (PCT)
Prior art keywords
optical pattern
lens
liquid crystal
image
unit
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Ceased
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PCT/KR2014/001972
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English (en)
Korean (ko)
Inventor
이영훈
정진관
이환희
이규민
홍신아
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Hanwha Advanced Materials Corp
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Hanwha Advanced Materials Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/307—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using fly-eye lenses, e.g. arrangements of circular lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers

Definitions

  • the present invention relates to an apparatus for displaying a stereoscopic image in an autostereoscopic manner, and more particularly, to an apparatus for allowing a viewer to watch a stereoscopic image without glasses for viewing the stereoscopic image.
  • interocular In general, the distance between both eyes is called interocular.
  • the human eye is about 65 mm.
  • the left and right eyes see slightly different images when looking at objects. This is called binocular disparity.
  • Man feels three-dimensional because of this binocular parallax.
  • the left eye image and the right eye image are separated and presented to the left eye and the right eye, respectively.
  • a barrier filter is disposed in front of the image panel. Through the barrier filter, the left eye sees the left eye image and the right eye sees the right eye image.
  • Prior arts related to the parallax barrier method include Korean Laid-Open Patent Publication No. 2005-0098493, Korean Laid-open Patent Publication No. 2006-0072078, and the like.
  • the parallax barrier method has a problem in that, when a device for releasing the parallax barrier is not attached, pixels are reduced when viewing a non-stereoscopic image, resulting in deterioration of image quality.
  • the parallax barrier method enables the stereoscopic image to be implemented only at a narrow range of distances and angles even when the stereoscopic image is viewed, and there is a problem that a so-called crosstalk phenomenon occurs when the parallax barrier is out of this distance or angle.
  • Crosstalk is a phenomenon in which the right eye image is seen in the left eye or the left eye image in the right eye.
  • the parallax barrier method when the viewing distance is long, such as a TV, the angle of binocular disparity is small. Therefore, in order for the left eye and the right eye to watch the left eye image and the right eye image, the distance between the image panel and the barrier filter must be increased. Accordingly, the parallax barrier method has a problem in that the display device becomes thick.
  • the total number of pixels for each of the multi-views is reduced by dividing the total number of pixels constituting the image panel by the number of multi-views. Therefore, when the multi-view is implemented according to the parallax barrier method, the resolution is reduced.
  • the lens plate is disposed in front of the image panel.
  • the lens plate is a lenticular screen in which semi-cylindrical convex lenses are arranged vertically.
  • the width of the convex lens corresponds to at least twice the width of the pixel.
  • the left eye image and the right eye image are separated by a lens plate.
  • Prior arts related to the lenticular method include Korean Patent Publication No. 2007-0001528, Korean Patent Publication No. 2008-0027559, and the like.
  • the lenticular method since a convex lens having a large size is used as compared with the pixel, the viewer can easily recognize the phenomenon of the lens spreading. Therefore, the lenticular method has a problem in that the displayed image quality is degraded.
  • the resolution decreases as the total number of pixels for each of the multi-views is reduced.
  • the present invention has been made in an effort to provide an autostereoscopic 3D display device capable of solving the above-described problems and in particular, minimizing a moiré phenomenon in a lenticular method.
  • An autostereoscopic 3D display device for solving the above problems is mounted on a front surface of an image panel.
  • the image panel includes a plurality of pixels arranged in a matrix to output an image.
  • the image panel outputs a left eye image and a right eye image through a plurality of pixels in a spatial division method.
  • the image panel may output a left eye image and a right eye image through the plurality of pixels in a time division manner.
  • the autostereoscopic 3D display device includes a lens unit and an optical pattern unit.
  • convex lenses smaller than or equal to the pixel are disposed in portions corresponding to the pixels.
  • the convex lens is a circular lens or a square lens.
  • the optical pattern portion is disposed between the lens portion and the image panel.
  • the optical pattern part is to form an optical pattern so that the left eye or right eye line passing through the convex lens toward the pixel is selectively passed or blocked due to binocular parallax.
  • the optical pattern is configured by each of the pattern units forming a light transmitting portion for passing or a light blocking portion for blocking.
  • the optical pattern portion at least two pattern units exist in each portion corresponding to the convex lens.
  • the lens unit is composed of convex lenses of the same size or smaller than the pixel, the moiré phenomenon in the conventional lenticular method can be improved.
  • the convex lens is smaller than or equal to the pixel, the convex lens organically combines and interacts with the optical pattern part so that the left eye image and the right eye image cannot be seen.
  • the convex lens of such a small size is used, the phenomenon of spreading in the conventional lenticular method may be improved.
  • the multi-view can be realized. If four or more pattern units are formed for each part corresponding to the convex lens arranged for the pixel, the multi-view can be realized. If the multi-view is implemented in this way, all the pixels constituting the image panel can each display the multi-view. Can be provided for. This allows the autostereoscopic 3D image to be implemented without degrading the resolution even for the multi-view point.
  • the line of sight that passes through the lens portion and reaches the optical pattern portion does not reach as it is, but as a focal point. Accordingly, the so-called crosstalk phenomenon in which the right eye image is seen in the left eye or the left eye image is seen in the right eye can be prevented.
  • the distance and angle at which the stereoscopic image can be viewed may be formed over a wide range. In addition, even when the viewing distance is long, such as a TV, since the distance between the image panel and the barrier filter does not have to be increased as in the conventional parallax barrier method, it can be implemented thinner than the conventional parallax barrier method.
  • FIG. 1 is a schematic horizontal cross-sectional view of an autostereoscopic 3D display device according to an embodiment of the present invention.
  • FIG. 2 is a partial perspective view of an embodiment of the lens unit of FIG. 1.
  • FIG. 2 is a partial perspective view of an embodiment of the lens unit of FIG. 1.
  • FIG. 3 is an overcoat layer added to FIG.
  • FIG. 4 is a partial front view of an embodiment of an optical pattern formed in the optical pattern portion of FIG.
  • FIG. 5 is a partial front view of another embodiment of FIG.
  • FIG. 6 is a partial front view of another embodiment of FIG. 4.
  • FIG. 6 is a partial front view of another embodiment of FIG. 4.
  • FIG. 7 is a partial front view of another embodiment of FIG. 4.
  • FIG. 8 is a partial perspective view of another embodiment of the lens portion of FIG.
  • FIG. 1 is a schematic horizontal cross-sectional view of an autostereoscopic 3D display device according to an embodiment of the present invention.
  • the autostereoscopic 3D display apparatus 200 is mounted on a front surface of the image panel 100.
  • the image panel 100 includes a plurality of pixels arranged in a matrix to output an image.
  • the image panel 100 outputs a left eye image and a right eye image through a plurality of pixels in a spatial division method.
  • the spatial division method is a method in which some of the pixels output the left eye image and at the same time the rest of the pixels output the right eye image.
  • odd-numbered rows of pixels may output a left eye image and even-numbered rows of pixels may output a right eye image.
  • pixels in odd rows may output a left eye image
  • pixels in even rows may output a right eye image.
  • pixels located in odd columns of odd rows and pixels located in even columns of even rows may output a left eye image, and the remaining pixels may output a right eye image.
  • the autostereoscopic 3D display apparatus 200 is mounted on the spatially divided image panel 100, but the autostereoscopic 3D display apparatus 200 may be mounted on the time division image panel.
  • the time division method is a method in which all pixels sequentially output a left eye image and a right eye image.
  • Each of the pixels may be composed of an R (Red) subpixel, a G (Green) subpixel, and a B (Blue) subpixel. Light output from each subpixel has a corresponding color by passing through a color filter.
  • One pixel may be configured by arranging the R subpixels, the G subpixels, and the B subpixels in a horizontal direction.
  • the image panel 100 a general LCD, LED, OLED, or the like may be used.
  • the image panel 100 may include a first liquid crystal unit 110, a first transparent sheet layer 120, and a first polarizer 130.
  • the first liquid crystal unit 110 includes a left eye image pixel 111 and a right eye image pixel 112.
  • the left eye image pixel 111 is a pixel for outputting the left eye image L
  • the right eye image pixel 112 is a pixel for outputting the right eye image R.
  • the image panel 100 of the present embodiment outputs a left eye image and a right eye image in a spatial division method
  • a plurality of pixels arranged in a matrix form is illustrated in FIG. 1 for convenience of description. Only one right eye image pixel 112 is shown.
  • Each of the pixels 111, 112 is composed of RGB subpixels.
  • Each of the pixels 111 and 112 is filled with a liquid crystal between electrodes for applying a voltage for each subpixel. In the subpixel to which the voltage is applied, the arrangement of the liquid crystals changes. Light passing through the liquid crystal in this state is diffracted.
  • Each image of the pixels 111 and 112 is formed by collecting light passing through the RGB subpixels.
  • the first transparent sheet layer 120 is disposed between the first liquid crystal unit 110 and the first polarizing plate 130.
  • the first transparent sheet layer 120 is inserted to adjust the gap between the first liquid crystal unit 110 and the autostereoscopic 3D display device 200.
  • the first transparent sheet layer 120 corresponds to a color filter glass substrate.
  • the first polarizing plate 130 linearly polarizes the light transmitted through the first liquid crystal unit 110.
  • the desired image is obtained by transmitting the light transmitted through the first liquid crystal unit 110 through the first polarizing plate 130.
  • the first polarizer 130 corresponds to a polarizer attached to the color filter glass substrate.
  • the autostereoscopic 3D display apparatus 200 includes an optical pattern unit and a lens unit.
  • the optical pattern part includes a second liquid crystal part 210, a second polarizing plate 220, and a second transparent sheet layer 230.
  • the lens unit includes a base layer 240 and a lens array 250.
  • convex lenses 251 are repeatedly arranged.
  • the horizontal cross section of the convex lens 251 is in the shape of a circle or an ellipse as shown in FIG.
  • the convex lens 251 is a rectangular lens or a circular lens.
  • a square lens is a lens whose vertical section is rectangular.
  • the rectangles herein include squares, rectangles, parallelograms, and the like.
  • a circular lens is a lens whose vertical section is circular or elliptical.
  • the convex lens 251 is smaller than or equal to the pixels 111 and 112. That is, the vertical cross section of the convex lens 251 is less than or equal to the vertical cross section of the pixels 111 and 112.
  • the term 'width' means a length in the horizontal direction of FIG. 1
  • the term 'height' means a length in a direction perpendicular to the cross section of FIG. 1.
  • the width of the convex lens 251 is less than or equal to the width of the pixels 111 and 112, and the height of the convex lens 251 is also less than or equal to the height of the pixels 111 and 112.
  • convex lenses 251 are disposed at respective portions corresponding to the pixels 111 and 112.
  • the convex lenses 251 are coated on the base layer 240 to form the lens array 250.
  • the base layer 240 is made of a transparent film such as PET film or a transparent glass plate.
  • the lens array 250 may be mounted on the autostereoscopic 3D display apparatus 200 without the base layer 240, the base layer 240 may be omitted.
  • lens pillars are generally arranged on the lens plate, and the height of the lens pillar corresponds to the overall height of the matrix of pixels.
  • the autostereoscopic 3D display apparatus 200 includes convex lenses smaller than or equal to pixels in the lens unit.
  • the moiré pattern generated corresponding to the height of the lens pillar in the conventional lenticular method is crushed finely. Accordingly, the autostereoscopic 3D display apparatus 200 may improve the moiré phenomenon.
  • FIG. 2 is a partial perspective view of an embodiment of the lens unit of FIG. 1.
  • the rectangular lens 251a may be used as the convex lens 251 of FIG. 1.
  • the square lenses 251a coated on the base layer 240 form the lens array 250.
  • Square lenses 251a are arranged in a grid in the lens array 250.
  • an overcoat layer 260 may be added to the front surface of the lens array 250.
  • the overcoat layer 260 is used to adjust the focal length of the lens array 250.
  • An AN coated PET film (not shown) may be attached to the front surface of the overcoating layer 260.
  • the focal length of the lens array 250 may be adjusted by overcoating.
  • the focal length of the lens array 250 can also be adjusted by employing a convex lens 251 having a suitable refractive index.
  • the focal length of the lens array 250 is adjusted such that the second liquid crystal unit 210 is positioned near the focal length of the lens array 250.
  • the focal length of the lens array 250 is adjusted to correspond to between 0.5 and 1.5 times the distance from the lens array 250 to the second liquid crystal unit 210.
  • the focal length of the lens array 250 is adjusted to correspond to the distance from the lens array 250 to the second liquid crystal unit 210.
  • the lens array 250 may be disposed such that the convex surface of the convex lens 251 faces the image panel 100 without facing the viewer.
  • convex lenses having both convex front and rear sides may form a lens array.
  • the optical pattern portion is disposed between the lens portion and the image panel 100.
  • the optical pattern part includes the second liquid crystal part 210, the second polarizing plate 220, and the second transparent sheet layer 230.
  • the second liquid crystal part 210 is composed of a first isotropic ITO film layer, a first alignment film, a liquid crystal layer, a second alignment film, and a second isotropic ITO film layer.
  • the first isotropic ITO film layer is patterned by ITO sputtering after antiblocking coating of the isotropic film.
  • any film having an X-Y axis phase difference R0 of 20 or less is optically close to isotropic and coated with a transparent electrode and having a sheet resistance of 150 [ ⁇ / ⁇ ] or less.
  • an isotropic polycarbonate film, a cycloolefin film, a polyisosulfone film, or the like may be used as the isotropic film.
  • the patterning is such that the pattern units 219 are arranged in a matrix form with rows of straight lines and columns of diagonal lines.
  • the first alignment layer is coated on the front surface of the first isotropic ITO film layer.
  • the liquid crystal layer is coated on the front side of the first alignment layer.
  • the second alignment layer is coated on the back side of the second isotropic ITO film layer, and the second isotropic ITO film layer coated with the second alignment layer is coated on the front surface of the liquid crystal layer. As a result, the second alignment layer is positioned on the front surface of the liquid crystal layer.
  • the second transparent sheet layer 220 is attached to the front surface of the second isotropic ITO film layer.
  • the liquid crystal layer provides a function of blocking or transmitting light.
  • the first alignment layer and the second alignment layer may be omitted if the liquid crystal layer can provide such a function without the first alignment layer and the second alignment layer.
  • the second liquid crystal part 210 is filled with liquid crystal between the first isotropic ITO film layer and the second isotropic ITO film layer.
  • TFT-TN, TFT-VA, TFT-IPS, TN, OCB, ECB, PDLC, or STN type liquid crystal displays may be used to implement the second liquid crystal unit 210. Can be.
  • Pattern units 219 are formed in the second liquid crystal part 210 according to the patterning of the first isotropic ITO film layer.
  • the vertical section of the pattern unit 219 is a parallelogram or similar shape.
  • the width of the pattern unit 219 is greater than or equal to 1 / 2N (N is the number of viewpoints) of the width of the convex lens 251 and less than or equal to 1 / 2N of the width of the pixels 111 and 112.
  • the number N of viewpoints means the number of viewers who can simultaneously watch a stereoscopic image.
  • the number N of viewpoints means that four viewers can simultaneously watch a stereoscopic image. That is, the number N of views 4 means that 4 views are provided.
  • the width of the pattern unit 219 is greater than or equal to 1/8 of the width of the convex lens 251, and the pixel is not limited thereto. It is set to be smaller than or equal to 1/8 of the width of (111, 112).
  • the width of the pattern unit 219 is greater than or equal to 1/4 of the width of the convex lens 251 and the pixels 111, It is set to be smaller than or equal to 1/4 of the width of 112).
  • the height of the pattern unit is set to correspond to the height of the pixels 111 and 112. That is, the height of the pattern unit 219 is set to coincide with or close to the height of the pixels 111 and 112.
  • the first isotropic ITO film layer and the second isotropic ITO film layer are used as electrodes for applying a voltage for each pattern unit 219.
  • the second liquid crystal unit 210 has a voltage applying unit (not shown) for applying a voltage for each pattern unit 219 through the electrode.
  • the liquid crystal array changes in each portion corresponding to the pattern units in the liquid crystal layer.
  • a phase change of 1 / 2 ⁇ occurs in the left eye image L or the right eye image R transmitted through the liquid crystal layer in this state.
  • the liquid crystal array does not change for pattern units to which no voltage is applied.
  • the phase change does not occur in the left eye image L or the right eye image R passing through the liquid crystal layer in this state.
  • the second polarizing plate 220 is disposed between the second liquid crystal part 210 and the lens part.
  • the second polarizer 220 linearly polarizes the image transmitted through the second liquid crystal unit 210.
  • the image transmitted through the second liquid crystal unit 210 is classified into two types. One type is an image transmitted through a pattern unit to which no voltage is applied, and the other type is an image passing through a pattern unit to which no voltage is applied. There is a phase difference of 1 / 2 ⁇ between the two types of images. Due to this phase difference, only one of the two types passes through the second polarizing plate 220 and the other kind is blocked by the second polarizing plate 220.
  • the image transmitted through the pattern unit to which no voltage is applied passes through the second polarizing plate 220, and the image passing through the pattern unit to which the voltage is applied is blocked by the second polarizing plate 220.
  • the pattern unit to which no voltage is applied forms the light transmitting portion of the optical pattern portion
  • the pattern unit to which voltage is applied forms the light blocking portion of the optical pattern portion.
  • each of the pattern units arranged in the matrix form in the second liquid crystal part 210 forms a light blocking part or a light transmitting part of the optical pattern part.
  • the light blocking portion and the light transmitting portion are different in the arrangement of the liquid crystals in the second liquid crystal portion 210.
  • An optical pattern consisting of light blocking portions and light transmitting portions is formed in the optical pattern portion.
  • the second transparent sheet layer 230 is disposed between the lens unit and the second liquid crystal unit 210.
  • the second polarizing plate 220 is disposed on the front surface of the second liquid crystal unit 210
  • the second transparent sheet layer 230 is disposed on the front surface of the second polarizing plate 220.
  • the position of the second polarizing plate 220 and the position of the second transparent sheet layer 230 may be changed. That is, the second transparent sheet layer 230 may be disposed on the front surface of the second liquid crystal unit 210, and the second polarizing plate 220 may be disposed on the front surface of the second transparent sheet layer 230.
  • the thickness of the second transparent sheet layer 230 is adjusted to adjust the thickness between the lens unit and the second liquid crystal unit 210.
  • the distance of can be adjusted.
  • the thickness of the second transparent sheet layer 230 passes through the convex lens 251, and the portion of the left eye line extending to the second liquid crystal unit 210 and the right eye line of the second liquid from the binocular line toward the pixels 111 and 112 are the second liquid.
  • the distance between the parts reaching the government 210 is determined to correspond to the width of the pattern unit.
  • the optical pattern is formed such that the left eye or right eye line passing through the convex lens 251 toward the pixels 111 and 112 is selectively passed or blocked due to binocular parallax.
  • the optical pattern is configured such that the left eye gaze passes and the right eye gaze is blocked for the left eye image pixel 111, and the right eye gaze passes and the left eye gaze is blocked for the right eye image pixel 112.
  • a light-transmitting part is disposed in a part where the left eye is in the binocular line toward the left-eye image pixels 111, and a light shielding part is disposed in the part where the right eye is in the second liquid crystal part 210.
  • the second liquid crystal unit 210 has a light shielding portion disposed at a portion where the left eye line of sight passes from the binocular line of sight facing the right eye image pixel 112, and a light transmitting portion is disposed at a portion where the right eye line of light reaches.
  • the distance between the parts of the binocular line toward the pixels 111 and 112 that pass through the convex lens 251 to reach the second liquid crystal part 210 corresponds to the width of the pattern unit, one of the pattern units adjacent to each other By forming a light-transmitting portion in the light and forming a light-shielding portion in the other one, it is possible to selectively block any one of the binocular vision toward the pixels (111, 112).
  • the pair of light transmitting parts and the light blocking parts adjacent to each other form a subpattern constituting the entire optical pattern.
  • the optical pattern is formed by considering the eyes of each of the multi-viewpoints. For example, as shown in FIG. 1, when the number N of viewpoints is 4, an optical pattern is formed in consideration of four left eye and right eye lines including viewers A and B.
  • FIG. 1 when the number N of viewpoints is 4, an optical pattern is formed in consideration of four left eye and right eye lines including viewers A and B.
  • the optical pattern includes at least N subpatterns for each portion corresponding to the convex lens.
  • N of views is 4 as shown in FIG. 1, at least four subpatterns are included in each portion corresponding to the convex lens.
  • the subpattern may have a light-shielding portion formed on the right side and a light-shielding portion formed on the right side, or a light-shielding portion formed on the right side.
  • the optical pattern has at least two pattern units for each portion corresponding to the convex lens. Accordingly, at least one subpattern may be included in each portion corresponding to the convex lens. When at least four pattern units exist for each part corresponding to the convex lens, at least two sub-patterns may be included for each part corresponding to the convex lens, thereby providing a multi-view point or more.
  • the autostereoscopic 3D display apparatus 200 provides a multi-viewpoint, all pixels constituting the image panel may be provided for each of the multi-viewpoints. Accordingly, the autostereoscopic 3D image may be implemented without degrading the resolution even for a multi-view point.
  • viewers located in each of the multi-viewing points may independently watch stereoscopic images.
  • the number of multi-view points is 10 or less. This is in consideration of the ease and cost in manufacturing the optical pattern portion. If these matters are not a problem, the number of multi-view points may exceed ten.
  • the autostereoscopic 3D display apparatus 200 does not have a lens unit, the viewer's eyes will reach the second liquid crystal unit 210 as it is. Then, the viewer's gaze will reach a wider range than the width of the pattern unit on the second liquid crystal unit 210. Accordingly, a phenomenon in which not only the left eye image L but also the right eye image R may be seen or the right eye image R as well as the left eye image L may be seen at the viewpoint located at the side rather than the front side.
  • the lens unit reduces the area of the portion where the viewer's eyes reach the second liquid crystal unit 210. Since the focal length of the lens array 250 preferably corresponds to the distance from the lens array 250 to the second liquid crystal unit 210, the lens unit does not reach the second liquid crystal unit 210 without the viewer's eyes as it is. Leads to
  • the focal length of the lens array 250 does not coincide with the distance from the lens array 250 to the second liquid crystal unit 210, the area of the portion where the viewer's eyes reach the second liquid crystal unit 210 may be Significantly reduced.
  • the focal length of the lens array 250 is between 0.5 times and 1.5 times the distance from the lens array 250 to the second liquid crystal part 210, the viewer's gaze is not limited to the second liquid crystal part ( The area of the portion up to 210 is significantly reduced.
  • the above phenomenon when the lens unit does not exist in the autostereoscopic 3D display device 200 does not occur.
  • the distance and angle at which the stereoscopic image can be viewed may also be formed over a wide range.
  • the width of the pattern unit is less than or equal to 1 / 2N of the width of the pixel, but since the second liquid crystal unit 210 is located near the focal length of the lens array 250, the viewer's eyes using the pattern unit having such a small width It is possible to selectively block.
  • both the left eye image (L) and the right eye image (R) will be visible in the left eye of the viewer, and the left eye image (L) and the right eye image (R) also in the right eye of the viewer. This will all be visible. This is because the convex lens 251 cannot separate the left eye image L and the right eye image R because the convex lens 251 is smaller than or equal to the pixels 111 and 112.
  • the optical pattern formed in the optical pattern portion allows the left eye or right eye to pass through the lens array 250 toward the pixels 111 and 112 to be selectively passed or blocked due to binocular disparity. Accordingly, the above phenomenon when the optical pattern portion does not exist in the autostereoscopic 3D display device 200 does not occur.
  • the second transparent sheet layer 230 may be omitted.
  • the second liquid crystal unit 210 functions as a PNLC (Switchable Display Shutter) type.
  • the optical pattern formed on the optical pattern portion is variable.
  • the pattern units to which the voltage is applied in the second liquid crystal unit 210 are changed, the optical pattern formed in the optical pattern unit is also changed. Therefore, it is possible to detect the viewer's positions with the camera and to form the optical pattern to be suitable for the detected positions.
  • the left eye image (R) can be seen in the left eye and the left eye image (L) in the right eye at the position after the movement, but the left eye image (L) can be seen in the left eye by changing the optical pattern to be suitable for the position after the movement. It is possible to adjust the right eye image R to be visible.
  • the optical pattern unit may configure the optical pattern only as a light transmitting unit by applying no voltage to any pattern unit of the second liquid crystal unit 210 or applying a voltage to all pattern units. Accordingly, even when viewing a general image, deterioration of image quality due to the reduction of pixels does not occur.
  • the first optical pattern 210A is a matrix in which the light blocking portion 211 and the light transmitting portion 212 are sequentially arranged in rows and columns.
  • each of the light blocking part 211 and the light transmitting part 212 correspond to the shape and size of the pattern unit of the second liquid crystal part 210.
  • the unit height of the first optical pattern 210A corresponds to the height of the unit pixel.
  • the first optical pattern 210A may be applied when a pixel for outputting a left eye image and a pixel for outputting a right eye image are sequentially repeated for each row in a matrix of pixels. That is, the first optical pattern 210A may be applied to a case in which the left eye image and the right eye image are output in a top and bottom form in a matrix of pixels.
  • FIG. 5 is a partial front view of another embodiment of FIG. Referring to FIG. 5, long light transmitting parts 213 and two light blocking parts 211 are continuously disposed in a horizontal direction in the second optical pattern 210B, in which two light transmitting parts 212 are continuously disposed in a horizontal direction.
  • the long width light blocking portions 214 are formed.
  • Such continuous arrangement may occur when the optical units corresponding to each of the convex lenses adjacent to each other are continuously arranged, and the pattern unit positioned at the boundary thereof is the same as the light transmitting portion or the light blocking portion.
  • the second optical pattern 210B is in the form of a matrix in which the light blocking portion 211 or the wide light blocking portion 214 and the light transmitting portion 212 or the wide light transmitting portion 213 are sequentially arranged in rows and columns.
  • the unit height of the second optical pattern 210B also corresponds to the height of the unit pixels.
  • the second optical pattern 210B may be applied to a case in which a left eye image and a right eye image are output in a checkerboard type in a matrix of pixels.
  • FIG. 6 is a partial front view of another embodiment of FIG. 4.
  • FIG. 6 in the third optical pattern 210C, a plurality of light blocking portions are formed continuously in a vertical direction, and a light blocking portion row 215 and a plurality of light transmitting portions are continuously arranged in a vertical direction are disposed in a third light pattern 210C. ) Exists.
  • the light blocking part row 215 and the light transmitting part row 216 are sequentially arranged in the horizontal direction.
  • the unit height of the third optical pattern 210C corresponds to the overall height of the matrix of pixels, that is, the height of the image panel.
  • the third optical pattern 210C may be applied to a case in which the left eye image and the right eye image are output in a time division method in a matrix of pixels.
  • FIG. 7 is a partial front view of another embodiment of FIG. 4.
  • two light-shielding part columns 217 and two light-shielding part columns 217 formed by successively arranging two light-transmitter columns 216 in the horizontal direction are arranged in the horizontal direction.
  • Such a continuous arrangement may occur when the optical pattern corresponding to each of the convex lens rows adjacent to each other is continuously arranged, and the pattern unit rows positioned at the boundary thereof are the same as the light transmitting part row or the light blocking part row.
  • the fourth optical pattern 210D has a shape in which the light blocking part row 215 or the long width light blocking part row 217 and the light transmitting part row 216 or the long width light transmitting part row 217 are sequentially arranged in the horizontal direction.
  • the unit height of the fourth optical pattern 210D also corresponds to the overall height of the matrix of pixels, that is, the height of the image panel.
  • the fourth optical pattern 210D may be applied to a case where pixels in odd rows output a single-eye image and pixels in even rows output a ta-eye image in the matrix of pixels. That is, the fourth optical pattern 210D may be applied to a case in which the single-eye image and the other-eye image are output side by side in a matrix of pixels.
  • the optical pattern unit can generate binocular parallax to the viewer through the selective blocking using the optical pattern as in this embodiment, it may be implemented in a different form than the present embodiment.
  • the optical pattern portion has a filter printed with black ink on a transparent film, a film selectively etched with a polarizing plate, a 1 / 2 ⁇ pattern retarder film combined with a polarizing plate, a polarizer and a 1 / 4 ⁇ retarder film combined with 1 / 4 ⁇ pattern retarder film, a liquid crystal display in combination with a polarizing plate and the like.
  • FIG. 8 is a partial perspective view of another embodiment of the lens portion of FIG. Referring to FIG. 4, a circular lens 251b may be used as the convex lens 251 of FIG. 1 instead of the square lens 251a of FIG. 2.
  • the circular lens 251b has a circular vertical cross section, portions 252 that are not covered by the circular lenses 251b may exist in the base layer 240, and light may be lost through the portions 252. .
  • the circular lenses 251 b may be disposed in a zigzag shape on the base layer 240 as shown in FIG. 4.
  • the interference fringes generated by the combination of the zigzag circular lenses and the third optical pattern 210C of FIG. 6 include lens columns (or lattice-shaped convex lenses) according to a conventional lenticular method. It is similar to the interference fringe generated by the combination of the first optical patterns 210A of the fourth. This is due to the combination of both zigzag and non-zigzag shapes. Thus, the former combination can be used in place of the latter combination.
  • an overcoat layer 260 may be added to the front surface of the lens array 250 in the lens unit of FIG. 8, similar to the lens unit of FIG. 2.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

La présente invention se rapporte à un dispositif d'affichage d'image autostéréoscopique. Le dispositif d'affichage d'image autostéréoscopique selon un mode de réalisation de la présente invention est fixé à l'avant d'un panneau d'image. Le panneau d'image comprend une pluralité de pixels qui sont agencés sous la forme d'une matrice pour transmettre une image. Le dispositif d'affichage d'image autostéréoscopique comprend une partie lentille et une partie motif optique. La partie lentille comprend des lentilles convexes qui sont agencées dans chaque partie qui correspond à des pixels et présentent une taille inférieure ou identique à celle des pixels. De préférence, les lentilles convexes sont des lentilles circulaires ou carrées. La partie motif optique est intercalée entre la partie lentille et le panneau d'image. Dans la partie motif optique, un motif optique est formé de telle sorte que la ligne de visée d'un œil gauche ou la ligne de visée d'un œil droit, qui passe à travers les lentilles convexes et se dirige vers les pixels, soit de façon sélectivement passée ou bloquée par une disparité binoculaire. Le motif optique est formé avec des unités de motifs qui forment chacune une partie de transmission permettant de faire passer la lumière ou une partie de protection pour se protéger de la lumière. La partie motif optique comprend au moins deux unités de motifs dans chaque partie correspondant aux lentilles convexes. La présente invention peut améliorer le phénomène de moiré rencontré dans un procédé lenticulaire classique. De plus, une image autostéréoscopique peut être exécutée sans détériorer la résolution des points de vue de multiples personnes. En outre, la présente invention peut empêcher le phénomène de diffusion d'image rencontré dans le procédé lenticulaire classique, empêcher le phénomène de diaphonie et mettre en œuvre un dispositif moins épais par comparaison avec un système de barrière de parallaxe classique.
PCT/KR2014/001972 2013-06-03 2014-03-11 Dispositif d'affichage d'image autostéréoscopique Ceased WO2014196726A1 (fr)

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KR1020130063348A KR20140141947A (ko) 2013-06-03 2013-06-03 무안경 입체영상 디스플레이 장치
KR10-2013-0063348 2013-06-03

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CN105116558A (zh) * 2015-09-10 2015-12-02 深圳市华星光电技术有限公司 3d显示装置
KR102638141B1 (ko) 2016-09-22 2024-02-19 삼성디스플레이 주식회사 렌즈 패널을 포함하는 표시 장치

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Publication number Priority date Publication date Assignee Title
JPH0678342A (ja) * 1992-08-24 1994-03-18 Ricoh Co Ltd 立体表示装置
JPH10161061A (ja) * 1996-12-02 1998-06-19 Sanyo Electric Co Ltd 立体映像表示装置
KR20010103100A (ko) * 2001-07-04 2001-11-23 김용범 입체영상 디스플레이장치
JP2008129194A (ja) * 2006-11-17 2008-06-05 Kuraray Co Ltd レンチキュラーレンズシート及び背面投射型スクリーン
US20120154463A1 (en) * 2010-12-20 2012-06-21 Samsung Electronics Co., Ltd. 3d image display apparatus and driving method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0678342A (ja) * 1992-08-24 1994-03-18 Ricoh Co Ltd 立体表示装置
JPH10161061A (ja) * 1996-12-02 1998-06-19 Sanyo Electric Co Ltd 立体映像表示装置
KR20010103100A (ko) * 2001-07-04 2001-11-23 김용범 입체영상 디스플레이장치
JP2008129194A (ja) * 2006-11-17 2008-06-05 Kuraray Co Ltd レンチキュラーレンズシート及び背面投射型スクリーン
US20120154463A1 (en) * 2010-12-20 2012-06-21 Samsung Electronics Co., Ltd. 3d image display apparatus and driving method thereof

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