WO2015024344A1 - 光栅透镜、透镜式光栅及显示装置 - Google Patents
光栅透镜、透镜式光栅及显示装置 Download PDFInfo
- Publication number
- WO2015024344A1 WO2015024344A1 PCT/CN2013/089547 CN2013089547W WO2015024344A1 WO 2015024344 A1 WO2015024344 A1 WO 2015024344A1 CN 2013089547 W CN2013089547 W CN 2013089547W WO 2015024344 A1 WO2015024344 A1 WO 2015024344A1
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- Prior art keywords
- grating
- lens
- grating lens
- arc
- point
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims description 28
- 230000004075 alteration Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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
- G02B30/27—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 lenticular arrays
- G02B30/29—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 lenticular arrays characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying shape or size
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
- G02B27/0037—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration with diffracting elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/06—Simple or compound lenses with non-spherical faces with cylindrical or toric faces
-
- 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
- G02B30/27—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 lenticular arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
- G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
Definitions
- the present invention relates to the field of display technologies, and in particular, to a grating lens, a lens grating, and a display device. Background technique
- the 3D raster is usually placed on the light exit side (i.e., the viewing side) of the display panel to form a 3D display device.
- Existing lenticular gratings are used to tilt the cylindrical lens relative to the rows and columns of pixels in the display panel.
- the lens grating is designed and fabricated such that the lens in the grating is a part of the cylindrical lens (a portion cut along the axial direction of the cylinder), and includes: a side surface formed by the plane 110 and the curved surface 120, and Two bottom surfaces 130 perpendicular to the plane 110 and the curved surface 120.
- the curved surface 120 is a part of the side surface of the cylinder.
- the rectangles labeled 1, 2, and 3 represent viewpoint images displayed by different sub-pixels, and the sub-pixels of the same label form a complete viewpoint image, and different viewpoint images are taken from different angles of the same object.
- the cylindrical lens of the lenticular grating is tilted, at this time, from the viewing side of the screen (the screen is perpendicular to the horizontal plane), the cross section formed by the intersection of the horizontal plane and the lens intersects the curved surface 120
- the line is an elliptical arc, that is, a predetermined angle with the axial direction of the lens (the direction connecting the centers of the two bottom surfaces 130), and the intersection of the section perpendicular to the plane 110 and the curved surface 120 is an elliptical arc.
- the technical problem to be solved by the present invention is: How to reduce the penetration of light through the lenticular grating The spherical aberration caused by the mirror.
- the present invention provides a grating lens, wherein the grating lens is a uniform columnar body, and the shape and size of each cross section perpendicular to the axis of the grating lens are the same, and the grating lens includes a plane and a side surface formed by the curved surface, an intersection line of the oblique section of the grating lens and the curved surface is an arc, the oblique section is a predetermined angle with the axis of the grating lens and perpendicular to the plane a section, where 0. ⁇ 90. .
- intersection of any cross section perpendicular to the axis of the grating lens and the curved surface is a non-circular arc, the point on the circular arc (X, and the point on the non-arc ( ⁇ ', y' ) to satisfy the following relationship:
- the present invention also provides a lens grating comprising a grating substrate, and further comprising an array of the above-described grating lenses on the grating substrate.
- the plane of the grating lens is in contact with the surface of the grating substrate Face.
- the present invention also provides a display device including a display panel, and further comprising the above-described lenticular grating on a light exiting side of the display panel.
- the grating lens is located on a side of the grating substrate facing away from the display panel;
- the grating lens is located on a side of the grating substrate adjacent to the display panel.
- the axial direction of the lenticular lens is at a predetermined angle with the lateral direction of the pixel array in the display panel.
- the invention changes the surface shape of the grating lens in the prior art, that is, the intersection line between the oblique section of the grating lens and the arc surface of the grating lens is an arc, thereby reducing the spherical aberration caused by the light passing through the grating lens, and further The 3D crosstalk phenomenon is alleviated and the viewing angle is increased.
- FIG. 1 is a schematic view of a lens used in a prior art lens grating
- FIG. 2 is a schematic view showing a lens disposed in a prior art lens grating
- FIG. 3 is a schematic view showing a principle of a spherical aberration generated by a lens in a prior art lens grating
- FIG. 4 is a schematic view of a grating lens according to an embodiment of the present invention
- FIG. 5 is a schematic view showing the arrangement of a grating lens in a lens grating according to an embodiment of the present invention
- FIG. 6 is a schematic diagram for deriving a radius of an arc of an oblique section intersecting a curved surface of a grating lens according to an embodiment of the present invention
- Figure 7 is a schematic diagram of a method of calculating a radius of a circle
- FIG. 8 is a schematic diagram of the principle of the lenticular lens mitigating the spherical aberration phenomenon according to the embodiment of the present invention
- FIG. 9 is a light path diagram of the display device of the lenticular lens according to the embodiment of the present invention on the light exiting side;
- Figure 10 is a schematic diagram of a 3D raster display
- Figure 11 is a light path diagram of another display device including a grating lens according to an embodiment of the present invention on the light exiting side. detailed description
- This embodiment provides a grating lens, i.e., a lens used as a 3D grating, and the specific shape of the grating lens is as shown in FIG.
- the grating lens of this embodiment is a uniform columnar body, and the shapes and sizes of the respective cross sections perpendicular to the axis of the grating lens are the same, that is, the surface shape is uniform.
- the lenticular lens comprises: a side surface formed by a plane 210 and a curved surface 220, and of course each of the grating lens has a bottom surface 230 at each end. As shown in FIG.
- the oblique cross section and the arc of the grating lens of the present embodiment are used in order to reduce the spherical aberration caused by the light passing through the grating lens.
- the intersection line of the face 220 is an arc, that is, an arc of a circle, and the oblique section is any section perpendicular to the axis of the grating lens and perpendicular to the plane 210, where 0° ⁇ ⁇ ⁇ 90°
- the axis of the grating lens is a line connecting the centers of the two bottom surfaces 230 of the grating lens (uniform columnar body). At this time, the intersection line of any cross section perpendicular to the axis of the grating lens and the curved surface 220 is a non-arc.
- the present embodiment determines the radius r of the intersection arc of the oblique section and the curved surface 220, the pitch P of the grating lens, and the angle. ⁇ to determine the shape of the above non-circular arc, thereby determining the shape of the entire curved surface 220.
- the points on the arc (X, ;) and the points on the non-arc ( ⁇ ' , y' :) satisfy the following relationship:
- the third coordinate system X0 3 Y may be established in the oblique section with the center of the arc as the origin 0 3 , as shown in FIG. 7 , in the third coordinate system X0 3 Y, Any point on the arc ( , ⁇ satisfies:
- the surface shape of the grating lens can be determined by a predetermined angle.
- the surface shape of the lens of the present embodiment is not a part of the cylindrical side (circular surface) with respect to the existing lens. It is a curved surface of a non-arc. Since the grating lens is obliquely disposed during use, and the intersection line between the oblique section and the curved surface 220 is an arc, it is equivalent to providing a lens having a surface shape of a circular arc surface on the light outgoing side of the display panel.
- the grating lens of the embodiment can make the light passing through itself substantially gather at one point, thereby reducing the spherical aberration phenomenon caused by the light passing through the grating lens, thereby reducing the 3D crosstalk phenomenon and increasing the viewing angle. .
- the embodiment provides a lens grating comprising an array of grating substrates and grating lenses on the grating substrate.
- the grating lens is the grating lens in the first embodiment, that is, the grating lens in FIG.
- the lenticular lens array on the grating substrate corresponds to a pixel array in the corresponding display device.
- the plane 210 of the grating lens is the contact surface that contacts the surface of the grating substrate. Since the grating lens of Embodiment 1 is used, the lens grating of the present embodiment alleviates the 3D crosstalk phenomenon in use.
- the embodiment provides a display device, including a display panel, and further includes a lens grating on a viewing side of the display panel, and the lens in the lens grating is the grating in Embodiment 1.
- Lens the axial direction of the grating lens is at a predetermined angle A with the lateral direction of the pixel array in the display panel, wherein the predetermined angle ⁇ is usually 70° to 85°.
- the grating lens is located on a side of the grating substrate facing away from the display panel.
- the optical path diagram of the display device on the light exiting side is as shown in FIG. 9, where e is the sum of the thicknesses of the color filter substrate and the polarizer, g is the pitch of the grating substrate and the polarizer, and w is the thickness of the grating substrate (and the size)
- e is the sum of the thicknesses of the color filter substrate and the polarizer
- g is the pitch of the grating substrate and the polarizer
- w is the thickness of the grating substrate (and the size)
- r is an arc formed by the intersection of the oblique section of the grating lens and the arc surface of the grating lens.
- the radius of the corresponding circle, O is the center of the circle corresponding to the arc formed by the oblique line of the grating lens and the intersection of the arcuate faces of the grating lens.
- / is the distance from the grating lens to the display panel
- s is the distance of the lens grating from the human eye
- Subp is the width of the sub-pixel in the device as the pitch (the horizontal spacing of the adjacent two grating lens axes) ), «For the number of viewpoint images, "can be a natural number greater than or equal to 2. You can get /, f _ Subp by the following formula
- Equations (12) ⁇ (15) illustrate the relationship between ⁇ and
- equations (16) ⁇ (21) illustrate the relationship of ⁇ , ⁇ , «, and ⁇ .
- the angle 3 can be obtained according to the angular relationship of the light refraction and the formulas (22) and (23) (3 is the center of the circle and the edge of the grating lens The angle between the line and the horizontal direction, wherein the center ⁇ is the center of the circle corresponding to the arc formed by the oblique section of the grating lens and the intersection of the arcuate faces of the grating lens, and thus can be calculated according to the formula (24)
- r can be determined by the pitch, which is equivalent to determining the size of the grating lens.
- This embodiment provides another display device including a display panel, and further includes a lens grating on a viewing side of the display panel, and the lens in the lens grating is the grating lens in Embodiment 1.
- the axial direction of the grating lens is at a predetermined angle A with the lateral direction of the pixel array in the display panel, and the predetermined angle ⁇ is usually 70° to 85°.
- the grating lens is located on the side of the grating substrate which is adjacent to the display panel. Since the shape of the grating lens according to Embodiment 1 approximates the shape of an ideal lens, the reverse focusing of the lens on the grating substrate (i.e., the curved surface toward the display panel) also serves the same convergence.
- the optical path diagram of the display device in the present embodiment on the light exiting side is as shown in FIG.
- the grating lens of the above embodiment 4 is located on the side of the grating substrate close to the display panel, and the light passing through the grating lens is affected by the reflection and refraction of the grating substrate, which affects the 3D viewing angle and contrast to some extent, and the embodiment
- the lenticular lens of the 3 is located on the side of the grating substrate facing away from the display panel, and the light transmitted through the grating lens is no longer affected by the reflection and refraction of the grating substrate, and the 3D viewing angle and contrast are improved compared with the embodiment 4.
- the required r can be obtained by the optical path diagram in Embodiment 3 or Embodiment 4.
- P, in combination with the predetermined angle ⁇ , the coordinates ( ⁇ ', y ') on the non-circular arc can be obtained by the formula in Embodiment 1, thereby producing a grating lens.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/355,578 US10520653B2 (en) | 2013-08-19 | 2013-12-16 | Grating lens, lens-type grating, and display device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201310362439.4 | 2013-08-19 | ||
CN201310362439.4A CN103412359B (zh) | 2013-08-19 | 2013-08-19 | 光栅透镜、透镜式光栅及显示装置 |
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WO2015024344A1 true WO2015024344A1 (zh) | 2015-02-26 |
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PCT/CN2013/089547 WO2015024344A1 (zh) | 2013-08-19 | 2013-12-16 | 光栅透镜、透镜式光栅及显示装置 |
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US (1) | US10520653B2 (zh) |
CN (1) | CN103412359B (zh) |
WO (1) | WO2015024344A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112011282A (zh) * | 2020-08-17 | 2020-12-01 | 深圳市方胜光学材料科技有限公司 | 一种3d保护膜及其制备工艺 |
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CN103412359B (zh) * | 2013-08-19 | 2015-04-29 | 京东方科技集团股份有限公司 | 光栅透镜、透镜式光栅及显示装置 |
CN104317061A (zh) | 2014-11-14 | 2015-01-28 | 深圳市华星光电技术有限公司 | 立体显示装置 |
WO2021141730A1 (en) * | 2020-01-10 | 2021-07-15 | Applied Materials, Inc. | A method to determine line angle and rotation of multiple patterning |
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CN203433136U (zh) * | 2013-08-19 | 2014-02-12 | 京东方科技集团股份有限公司 | 光栅透镜、透镜式光栅及显示装置 |
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CA2486443A1 (en) * | 2001-06-08 | 2002-12-19 | Lenticlear Lenticular Lens, Inc. | Lenticular lens array and tool for making a lenticular lens array |
US6741395B1 (en) * | 2001-06-08 | 2004-05-25 | Lenticlear Lenticular Lens, Inc. | Elliptically-shaped tool |
KR100841321B1 (ko) * | 2006-09-29 | 2008-06-26 | 엘지전자 주식회사 | 입체영상 표시장치 |
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CN102981196A (zh) * | 2012-12-11 | 2013-03-20 | 南京中电熊猫液晶显示科技有限公司 | 柱透镜光栅、光栅视差屏障式立体显示装置及视差屏障 |
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2013
- 2013-08-19 CN CN201310362439.4A patent/CN103412359B/zh active Active
- 2013-12-16 WO PCT/CN2013/089547 patent/WO2015024344A1/zh active Application Filing
- 2013-12-16 US US14/355,578 patent/US10520653B2/en active Active
Patent Citations (5)
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CN102338951A (zh) * | 2010-07-14 | 2012-02-01 | 三星电子株式会社 | 立体图像显示器 |
CN102053379A (zh) * | 2010-11-09 | 2011-05-11 | 友达光电股份有限公司 | 立体图像显示装置 |
CN102331626A (zh) * | 2011-09-23 | 2012-01-25 | 深圳超多维光电子有限公司 | 立体显示装置 |
CN103412359A (zh) * | 2013-08-19 | 2013-11-27 | 京东方科技集团股份有限公司 | 光栅透镜、透镜式光栅及显示装置 |
CN203433136U (zh) * | 2013-08-19 | 2014-02-12 | 京东方科技集团股份有限公司 | 光栅透镜、透镜式光栅及显示装置 |
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CN112011282A (zh) * | 2020-08-17 | 2020-12-01 | 深圳市方胜光学材料科技有限公司 | 一种3d保护膜及其制备工艺 |
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US10520653B2 (en) | 2019-12-31 |
CN103412359A (zh) | 2013-11-27 |
US20150205018A1 (en) | 2015-07-23 |
CN103412359B (zh) | 2015-04-29 |
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