WO2016106793A1 - 3d显示装置 - Google Patents
3d显示装置 Download PDFInfo
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- WO2016106793A1 WO2016106793A1 PCT/CN2015/070248 CN2015070248W WO2016106793A1 WO 2016106793 A1 WO2016106793 A1 WO 2016106793A1 CN 2015070248 W CN2015070248 W CN 2015070248W WO 2016106793 A1 WO2016106793 A1 WO 2016106793A1
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- WIPO (PCT)
- Prior art keywords
- lens
- array
- display device
- display panel
- curved diffusion
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Classifications
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0012—Arrays characterised by the manufacturing method
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- 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
- G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
Definitions
- the present invention relates to a liquid crystal display technology, and more particularly to a 3D display device which can improve the crosstalk problem in 3D display.
- 3D display technology In order to satisfy the visual experience, display technology has been developed to 3D display.
- the existing 3D display technology can be roughly divided into glasses type 3D display technology (stereoscopic Display) and naked eye 3D display technology (auto-stereoscopic Display), wherein the naked eye 3D display technology has the advantage of having the convenience of not using additional glasses.
- Currently naked-eye 3D display technology can be achieved by using a parallax barrier (parallax Barrier, lenticular lens or directional backlight.
- FIG. 1 is a schematic structural view of a conventional lenticular lens 3D display device
- FIG. 2 is a schematic view showing the operation of a conventional lenticular lens 3D display device
- the lenticular lens 3D display device is a lens layer 91 composed of a plurality of lenticular lenses 910 in front of a liquid crystal display panel 90.
- a lenticular lens covers a unit image, and a unit image includes a plurality of pixels or Subpixel.
- a plurality of unit images constitute a two-dimensional image to be displayed by the display panel.
- the lens layer 91 projects an image of the display panel into the space in a specific manner (orthogonal projection or perspective projection) to restore the 3D scene.
- the human eye experiences at least a depth cues such as binocular parallax and moving parallax at a specific viewing position or region (Depth Cue), you can perceive the 3D effect. Due to the existence of lens aberrations, viewing under an improper viewing angle (for example, the viewing angle is too large), the human eye can see the image information of the pixels that should not be seen, that is, constitute crosstalk, affecting the 3D effect. Therefore, this design makes the 3D viewing angle narrow.
- a display panel for providing a two-dimensional image
- a collimating backlight module disposed opposite to the display panel to provide a collimated backlight to project a two-dimensional image of the display panel;
- a lens array disposed on the display panel
- An array of curved diffusion sheets disposed between the display panel and the lens array, wherein the projected two-dimensional image is first diffused through the curved diffusion sheet array, and then restored to a 3D scene by the lens array .
- the lens array comprises a plurality of lens units arranged in an array;
- the curved diffusion sheet array comprises a plurality of curved diffusion sheets arranged in an array; wherein the arrangement of the curved diffusion sheets is The arrangement positions of the lens units are in one-to-one correspondence.
- each of the curved diffusion sheets has a concave surface facing the lens unit.
- the lens unit is a lenticular lens
- the concave surface of the curved diffusion sheet has a straight shape to match the lenticular lens
- the lens unit is a spherical lens
- the concave surface of the curved diffusion sheet has a circular shape to match the spherical lens
- the lens unit is a biconvex cylindrical lens.
- the lens unit is a lenticular lens.
- the radius of curvature of the concave surface of the curved diffusion sheet has a certain relationship with the spherical aberration and the radius of curvature of the lens unit.
- the present invention further provides a 3D display device, comprising: a display panel for providing a two-dimensional image; and a collimating backlight module disposed opposite to the display panel to provide a collimated backlight to project the display panel a lens array, disposed on the display panel, and comprising a plurality of lens units arranged in an array, wherein each lens unit covers a unit image, and the unit image includes a plurality of pixel regions or sub-pixel regions; And a curved diffusion sheet array disposed between the display panel and the lens array, and comprising a plurality of curved diffusion sheets arranged in an array; wherein an arrangement position of the curved diffusion sheets and an arrangement position of the lens unit One-to-one correspondence; each of the curved diffusion sheets has a concave surface facing the lens unit; the projected two-dimensional image is first diffused through the curved diffusion sheet array, and then restored to 3D by the lens array Scenes.
- the 3D display device of the present invention achieves the purpose of presenting a 3D scene by using a lens array, a curved diffusion sheet array and a collimated backlight module, and can effectively improve the crosstalk phenomenon caused by the aberration of the lens array itself.
- FIG. 1 is a schematic view showing the structure of a conventional lenticular lens 3D display device.
- FIG. 2 is a schematic view showing the operation of a conventional lenticular lens 3D display device.
- FIG. 3 is a schematic structural view of a preferred embodiment of a 3D display device of the present invention.
- FIG. 4 is a schematic view of a user viewing an image through a lens unit and a curved diffusion sheet of the 3D display device of the present invention at two different viewing angles.
- Figure 5 is a top plan view of a preferred embodiment of a lens array of a 3D display device of the present invention.
- Figure 6 is a top plan view of another preferred embodiment of a lens array of a 3D display device of the present invention.
- FIG. 3 is a schematic structural view of a preferred embodiment of the 3D display device of the present invention.
- the 3D display device of the present invention mainly comprises a display panel 1, a collimated light source 10, a lens array 2 and a curved diffuser array 3.
- the display panel 1 is used to provide two-dimensional images, and the lens array 2 restores two-dimensional images into 3D scenes.
- the display panel 1 can be a general liquid crystal display panel, and includes a color filter substrate, a thin film transistor substrate, and a liquid crystal layer interposed between the two substrates.
- the color filter substrate includes photoresist units of different colors.
- the thin film transistor substrate may include a gate line, a data line, a switching element and a pixel electrode, the gate line and the data line are vertically interleaved to define a plurality of sub-pixel areas, and the plurality of sub-pixel areas are further configured as a pixel area, the switch
- the component and the pixel electrode are disposed in each of the sub-pixel regions to correspond to the photoresist unit of the color filter substrate, thereby forming a pixel array.
- the collimating backlight module 10 is disposed opposite to the display panel 1 to provide a collimated backlight and project a two-dimensional image of the display panel.
- the lens array 2 is disposed above the display panel 1 and is disposed on a light exiting surface of the display panel 1 such that the two-dimensional image is projected onto the lens array 2.
- the lens array 2 mainly comprises a plurality of lens units 20 arranged in an array, wherein each lens unit 20 may cover one unit image, and each unit image may include several pixel regions or sub-pixel regions.
- the curved diffusion sheet array 3 is disposed between the display panel 1 and the lens array 2, and the two-dimensional image of the display panel 1 is first scattered through the curved diffusion sheet array 3. And projected onto the lens array 2.
- the curved diffusion sheet array 3 includes a plurality of curved diffusion sheets 30 arranged in an array. Specifically, the arrangement positions of the curved diffusion sheets 30 are in one-to-one correspondence with the arrangement positions of the lens units 20 of the lens array 2.
- Each of the curved diffusion sheets 30 has a concave surface facing the lens unit 20.
- the radius of curvature of the concave surface of the curved diffusion sheet 30 and the spherical aberration and radius of curvature of the lens unit 20 are A certain relationship.
- the lens unit 20 can be a cylindrical lens, such as a biconvex cylindrical lens.
- the concave surface of the curved diffusion sheet 30 has a straight shape to match the lenticular lens.
- the lens unit 20 can be a spherical lens, such as a lenticular lens.
- the concave surface of the curved diffusion sheet 30 has a circular shape to match the spherical lens.
- FIG. 4 is a schematic diagram of a user viewing an image through the lens unit 20 and the curved diffusion sheet 30 at two different viewing angles.
- the light of the two-dimensional image of the display panel 1 first passes through the curved diffusion sheet 30 having a specific curvature.
- the refraction is re-projected on the lens unit 20, and the 3D scene is restored by the lens unit 20, so that the user can perceive the 3D effect in a specific area.
- the curvature of the concave surface of the curved diffusion sheet 30 is in a corresponding relationship with the spherical aberration of the lens unit 20, the light of the two-dimensional image of the display panel 1 is scattered by the curved diffusion sheet 30, thereby effectively avoiding The light rays pass through the lens unit 20 to generate aberrations. Therefore, under the cooperation of the curved diffusion sheet 30 having the specific curvature and the lens unit 20, even at a large viewing angle, the single eye of the user can accurately see the image provided from the display panel 1 respectively, and Crosstalk does not occur when an incorrect image is received.
- the 3D display device of the present invention achieves the purpose of presenting a three-dimensional image by combining a lens array, a curved diffusion sheet array, and a collimated backlight module. Improve the crosstalk caused by the spherical aberration of the lens array itself.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
一种3D显示装置,包含一显示面板(1)、一准直背光模块(10)、一透镜阵列(2)及一曲面扩散片阵列(3)。透镜阵列(2)设于显示面板(1)表面上。曲面扩散片阵列(3)设于显示面板(1)与透镜阵列(2)之间,显示面板(1)的二维影像先经过曲面扩散片阵列(3)的扩散,再通过透镜阵列(2)还原成3D场景。透镜阵列(2)、曲面扩散片阵列(3)与准直背光模块(10)的设置能有效改善透镜阵列(2)的像差所产生的串扰现象。
Description
本发明是有关于一种液晶显示技术,特别是有关于一种可改善3D显示时的串扰问题的3D显示装置。
为了满足视觉体验,显示技术已发展至3D显示。现有的3D显示技术可大致分为眼镜式3D显示技术(stereoscopic
display)和裸眼3D显示技术(auto-stereoscopic
display),其中裸眼3D显示技术的优点在于具有无需使用额外眼镜的便利性。目前裸眼3D显示技术可通过使用视差屏障(parallax
barrier)、柱状透镜(lenticular lens)或指向光源(directional backlight)来实现。
请参考图1和图2所示,图1是现有的柱状透镜3D显示装置的结构示意图,图2是现有的柱状透镜3D显示装置的操作示意图。所述柱状透镜3D显示装置是在一液晶显示面板90的前面加上一层由数个柱状透镜910构成的透镜层91,其中一般一个柱状透镜覆盖一个单元图像,一个单元图像包含若干个像素或者子像素。若干个单元图像构成显示面板要显示的二维图像。所述透镜层91将显示面板的图像以特定的方式(正交投射或者透视投射)投射到空间中,还原3D场景。人眼在特定的观看位置或者区域,经历至少双眼视差、移动视差等深度线索(Depth
Cue),遂可以感知到3D效果。由于透镜像差的存在,那么在不当的视角下观看(例如视角过大),人眼会看到不该看到的像素的图像信息,即构成串扰,影响3D效果。也因此,此种设计使得3D视角变得狭窄。
故,有必要提供一种3D显示装置,以解决现有技术所存在的问题。
有鉴于现有技术的缺点,本发明的主要目的在于提供一种3D显示装置,可改善3D显示时的影像串扰问题。
一显示面板,用以提供二维影像;
一准直背光模块,与所述显示面板相对设置,提供准直背光源以投射所述显示面板的二维影像;
一透镜阵列,设于所述显示面板上;以及
一曲面扩散片阵列,设于所述显示面板与所述透镜阵列之间,所述被投射出的二维影像先经过所述曲面扩散片阵列的扩散,再通过所述透镜阵列还原成3D场景。
在本发明的一实施例中,所述透镜阵列包含多个排成阵列的透镜单元;所述曲面扩散片阵列包含多个排成阵列的曲面扩散片;其中所述曲面扩散片的排列位置与所述透镜单元的排列位置一一对应。
在本发明的一实施例中,每一所述曲面扩散片具有一面向所述透镜单元的凹面。
在本发明的一实施例中,所述透镜单元为柱状透镜,所述曲面扩散片的凹面呈直条状,以匹配该柱状透镜。
在本发明的一实施例中,所述透镜单元为球面透镜,所述曲面扩散片的凹面呈圆形,以匹配该球面透镜。
在本发明的一实施例中,所述透镜单元为双凸柱状透镜。
在本发明的一实施例中,所述透镜单元为双凸透镜。
在本发明的一实施例中,所述曲面扩散片的凹面的曲率半径与所述透镜单元的球面像差和曲率半径呈一定关系。
本发明另提供一种3D显示装置,包含:一显示面板,用以提供二维影像;一准直背光模块,与所述显示面板相对设置,提供准直背光源以投射所述显示面板的二维影像;一透镜阵列,设于所述显示面板上,并包含多个排成阵列的透镜单元,其中每一透镜单元覆盖一个单元图像,所述单元图像包含若干个像素区或子像素区;以及一曲面扩散片阵列,设于所述显示面板与所述透镜阵列之间,并包含多个排成阵列的曲面扩散片;其中所述曲面扩散片的排列位置与所述透镜单元的排列位置一一对应;每一所述曲面扩散片具有一面向所述透镜单元的凹面;所述被投射出的二维影像先经过所述曲面扩散片阵列的扩散,再通过所述透镜阵列还原成3D场景。
本发明的3D显示装置以透镜阵列、曲面扩散片阵列与准直背光模块来达到呈现3D场景的目的,可有效改善透镜阵列本身的像差所引发的串扰现象。
图1是现有的柱状透镜3D显示装置的结构示意图。
图2是现有的柱状透镜3D显示装置的操作示意图。
图3是本发明3D显示装置一较佳实施例的结构示意图。
图4是使用者的一眼在两不同视角下通过本发明3D显示装置的透镜单元和曲面扩散片观看影像的示意图。
图5是本发明3D显示装置的透镜阵列一较佳实施例的俯视示意图。
图6是本发明3D显示装置的透镜阵列另一较佳实施例的俯视示意图。
为让本发明上述目的、特征及优点更明显易懂,下文特举本发明较佳实施例,并配合附图,作详细说明如下。再者,本发明所提到的方向用语,例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等,仅是参考附加图式的方向。因此,使用的方向用语是用以说明及理解本发明,而非用以限制本发明。
请参考图3所示,图3是本发明3D显示装置一较佳实施例的结构示意图。本发明的3D显示装置主要包含一显示面板1、一准直光源10、一透镜阵列2及一曲面扩散片阵列3。所述显示面板1用以提供二维的影像,而透镜阵列2则将二维的影像还原成3D场景。
所述显示面板1可为一般的液晶显示面板,包括一具有彩色滤光片基板、一薄膜晶体管基板与夹设于两基板之间的液晶层。所述彩色滤光片基板包括不同颜色的光刻胶单元。所述薄膜晶体管基板可包含栅极线、数据线、开关元件及像素电极,所述栅极线和数据线垂直交错以定义多个子像素区,若干个子像素区再构成一像素区,所述开关元件及像素电极设于每一子像素区,以对应所述彩色滤光片基板的光刻胶单元,进而构成一像素阵列。
所述准直背光模块10与所述显示面板1相对设置,用以提供准直背光源,将所述显示面板的二维影像投射出去。
所述透镜阵列2是设于所述显示面板1上方,而且是设置所述显示面板1的一出光平面上,使所述二维影像被投射到所述透镜阵列2上。所述透镜阵列2主要包含多个排成阵列的透镜单元20,其中每一透镜单元20可以是覆盖一个单元图像,每一个单元图像可包含若干个像素区或者子像素区。
如图3所示,所述曲面扩散片阵列3设于所述显示面板1与所述透镜阵列2之间,所述显示面板1的二维影像会先经过所述曲面扩散片阵列3的散射,再投射于所述透镜阵列2上。所述曲面扩散片阵列3包含多个排成阵列的曲面扩散片30。具体而言,所述曲面扩散片30的排列位置与透镜阵列2的透镜单元20的排列位置一一对应。每一所述曲面扩散片30具有一面向所述透镜单元20的凹面,在本实施例中,所述曲面扩散片30的凹面的曲率半径与所述透镜单元20的球面像差和曲率半径呈一定关系。
在一较佳实施例中,进一步参考图5所示,所述透镜单元20可为柱状透镜,例如双凸柱状透镜。当所述透镜单元20为柱状透镜时,所述曲面扩散片30的凹面呈直条状,以匹配该柱状透镜。
在另一较佳实施例中,如参考图6所示,所述透镜单元20可为球面透镜,例如双凸透镜。当所述透镜单元20为球面透镜时,所述曲面扩散片30的凹面呈圆形,以匹配该球面透镜。
请参考图4所示,图4是使用者的一眼在两不同视角下通过所述透镜单元20和所述曲面扩散片30观看影像的示意图。当使用者分别在一第一位置A与一第二位置B于所述透镜单元20前方观看影像时,所述显示面板1的二维影像的光线先通过所述具有特定曲率的曲面扩散片30折射,再投射于所述透镜单元20上,进而由所述透镜单元20还原3D场景,让使用者在特定的区域可感知3D效果。由于所述曲面扩散片30的凹面的曲率与所述透镜单元20的球面像差呈一对应关系,所述显示面板1的二维影像的光线经过所述曲面扩散片30散射后,可有效避免所述光线通过所述透镜单元20时产生像差。因此,在所述具有特定曲率的曲面扩散片30与所述透镜单元20的配合下,即使在大视角下,使用者的单眼仍然能够分别准确地看到来自显示面板1所提供的影像,而不致于接收到错误的影像而发生串扰现象。
综上所述,相较于现有3D显示技术具有影像串扰的问题,本发明的3D显示装置以透镜阵列、曲面扩散片阵列及准直背光模块的配合来达到呈现三维影像的目的,可有效改善透镜阵列本身的球面像差所引发的串扰现象。
本发明已由上述相关实施例加以描述,然而上述实施例仅为实施本发明的范例。必需指出的是,已公开的实施例并未限制本发明的范围。相反地,包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围内。
Claims (12)
- 一种3D显示装置,包含:一显示面板,用以提供二维影像;一准直背光模块,与所述显示面板相对设置,提供准直背光源以投射所述显示面板的二维影像;一透镜阵列,设于所述显示面板上,并包含多个排成阵列的透镜单元,其中每一透镜单元覆盖一个单元图像,所述单元图像包含若干个像素区或子像素区;以及一曲面扩散片阵列,设于所述显示面板与所述透镜阵列之间,并包含多个排成阵列的曲面扩散片;其中所述曲面扩散片的排列位置与所述透镜单元的排列位置一一对应;每一所述曲面扩散片具有一面向所述透镜单元的凹面;所述被投射出的二维影像先经过所述曲面扩散片阵列的扩散,再通过所述透镜阵列还原成3D场景。
- 如权利要求1所述的3D显示装置,其中所述透镜单元为球面透镜,所述曲面扩散片的凹面呈圆形,以匹配该球面透镜。
- 如权利要求2所述的3D显示装置,其中所述透镜单元为双凸透镜。
- 如权利要求3所述的3D显示装置,其中所述曲面扩散片的凹面的曲率半径与所述透镜单元的球面像差和曲率半径呈一定关系。
- 一种3D显示装置,包含:一显示面板,用以提供二维影像;一准直背光模块,与所述显示面板相对设置,提供准直背光源以投射所述显示面板的二维影像;一透镜阵列,设于所述显示面板上;以及一曲面扩散片阵列,设于所述显示面板与所述透镜阵列之间,所述被投射出的二维影像先经过所述曲面扩散片阵列的扩散,再通过所述透镜阵列还原成3D场景。
- 如权利要求5所述的3D显示装置,其中所述透镜阵列包含多个排成阵列的透镜单元;所述曲面扩散片阵列包含多个排成阵列的曲面扩散片;其中所述曲面扩散片的排列位置与所述透镜单元的排列位置一一对应。
- 如权利要求6所述的3D显示装置,其中每一所述曲面扩散片具有一面向所述透镜单元的凹面。
- 如权利要求7所述的3D显示装置,其中所述透镜单元为柱状透镜,所述曲面扩散片的凹面呈直条状,以匹配该柱状透镜。
- 如权利要求7所述的3D显示装置,其中所述透镜单元为球面透镜,所述曲面扩散片的凹面呈圆形,以匹配该球面透镜。
- 如权利要求8所述的3D显示装置,其中所述透镜单元为双凸柱状透镜。
- 如权利要求9所述的3D显示装置,其中所述透镜单元为双凸透镜。
- 如权利要求7至11项任一项所述的3D显示装置,其中所述曲面扩散片的凹面的曲率半径与所述透镜单元的球面像差和曲率半径呈一定关系。
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