WO2016029488A1 - 三维图像显示装置及三维图像显示器 - Google Patents

三维图像显示装置及三维图像显示器 Download PDF

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Publication number
WO2016029488A1
WO2016029488A1 PCT/CN2014/085680 CN2014085680W WO2016029488A1 WO 2016029488 A1 WO2016029488 A1 WO 2016029488A1 CN 2014085680 W CN2014085680 W CN 2014085680W WO 2016029488 A1 WO2016029488 A1 WO 2016029488A1
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Prior art keywords
array
scattered light
image display
light sources
dimensional image
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English (en)
French (fr)
Inventor
陈剑鸿
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/403,256 priority Critical patent/US9743070B2/en
Publication of WO2016029488A1 publication Critical patent/WO2016029488A1/zh
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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
    • 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
    • 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
    • G02B30/33—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 directional light or back-light sources
    • 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
    • H04N13/32—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using arrays of controllable light sources; using moving apertures or moving light sources

Definitions

  • the present invention relates to the field of displays, and in particular to a three-dimensional image display device and a three-dimensional image display.
  • three-dimensional (three-dimensional) image display devices that display images more realistically and efficiently are required in various fields such as entertainment, games, advertising, medical, education, military, and the like. Therefore, developers of display devices have proposed to display three-dimensional Various techniques of images, and various types of three-dimensional image display devices have been commercialized.
  • FIG. 1 is a schematic structural view of a conventional three-dimensional image display device that displays a three-dimensional image through a fly-eye lens array including a plurality of microlens arrays.
  • 11 is a backlight
  • 12 is an element image array using a liquid crystal display panel
  • 13 is a fly-eye lens array.
  • the three-dimensional image display device collects three-dimensional scene information, such as the illustrated numeral "3" and the letter "D", through the fly-eye lens array 13 using the element image array 12. Then, the three-dimensional scene information in the element image array 12 can be reconstructed by the backlight 11 and the fly-eye lens array 13, and the user can realize the viewing of the three-dimensional image through the naked eye, wherein the A direction in FIG. 1 is the display direction.
  • the display method of the above three-dimensional image provides a continuous viewing angle, and the structure of the three-dimensional image display device is simple.
  • the image resolution of the above-described three-dimensional image display device depends on the size of the microlens on the fly-eye lens array 13, and the smaller the size of the microlens, the higher the image resolution of the three-dimensional image display device. Since the small-sized microlens is expensive to manufacture, the image resolution of the three-dimensional image display device is generally low.
  • An object of the present invention is to provide a three-dimensional image display device and a three-dimensional image display having high image resolution, and to solve the technical problem of low image resolution of the conventional three-dimensional image display device and three-dimensional image display.
  • the embodiment of the invention provides a three-dimensional image display device, which includes:
  • An element image array comprising a plurality of pixel units for displaying three-dimensional scene information
  • a backlight comprising a plurality of directional light sources for providing a display light source to the elemental image array
  • a compound eye lens array comprising a plurality of microlenses; configured to process the three-dimensional scene information to reconstruct a three-dimensional scene in a display area;
  • the element image array is disposed between the backlight and the fly-eye lens array, and different incident angles of the directional light source are different from incident angles of the element image array;
  • An incident angle difference between the outgoing light of the adjacent directional light source and the element image array is less than a set value
  • the pixel unit of the element image array has a one-to-one correspondence with the microlens of the fly-eye lens array.
  • the backlight includes:
  • An array of scattered light sources comprising a plurality of scattered light sources
  • a collimating lens for converting scattered light of the scattered light source into collimated light
  • the collimating lens is disposed between the array of scattered light sources and the array of elemental images; the array of scattered light sources comprises a plurality of scattered light sources arranged in an equally spaced array.
  • the embodiment of the invention further provides a three-dimensional image display device, comprising:
  • An element image array comprising a plurality of pixel units for displaying three-dimensional scene information
  • a backlight comprising a plurality of directional light sources for providing a display light source to the elemental image array
  • a compound eye lens array comprising a plurality of microlenses; configured to process the three-dimensional scene information to reconstruct a three-dimensional scene in a display area;
  • the element image array is disposed between the backlight and the fly-eye lens array, and different incident angles of the directional light source are different from incident angles of the element image array.
  • the incident angle difference between the outgoing light of the adjacent directional light source and the elemental image array is smaller than a set value.
  • the backlight includes:
  • An array of scattered light sources comprising a plurality of scattered light sources
  • a collimating lens for converting scattered light of the scattered light source into collimated light
  • the collimating lens is disposed between the array of scattered light sources and the array of elemental images.
  • the array of scattered light sources includes a plurality of scattered light sources arranged in an equally spaced array.
  • the array of scattered light sources is a scattering light source array arranged in a 3*3 array or a scattering light source array arranged in a 4*4 array.
  • the array of scattered light sources is disposed on a focal plane of the collimating lens.
  • the pixel unit of the element image array is in one-to-one correspondence with the microlens of the fly-eye lens array.
  • the image resolution of the three-dimensional image display device is adjusted by controlling display information of the pixel unit of the element image array and a switch of each of the directional light sources.
  • display information of the pixel unit of the element image array corresponding to the different directional light sources is different.
  • the embodiment of the invention further provides a three-dimensional image display, comprising:
  • An element image array driving circuit for driving the element image array
  • a backlight driving circuit for driving the backlight
  • a three-dimensional image display device comprising:
  • An element image array comprising a plurality of pixel units for displaying three-dimensional scene information
  • a backlight comprising a plurality of directional light sources for providing a display light source to the elemental image array
  • a compound eye lens array comprising a plurality of microlenses; configured to process the three-dimensional scene information to reconstruct a three-dimensional scene in a display area;
  • the element image array is disposed between the backlight and the fly-eye lens array, and different incident angles of the directional light source are different from incident angles of the element image array.
  • the difference in incident angle of the outgoing light of the adjacent directional light source with respect to the element image array is less than a set value.
  • the backlight includes:
  • An array of scattered light sources comprising a plurality of scattered light sources
  • a collimating lens for converting scattered light of the scattered light source into collimated light
  • the collimating lens is disposed between the array of scattered light sources and the array of elemental images.
  • the array of scattered light sources includes a plurality of scattered light sources arranged in an equally spaced array.
  • the array of scattered light sources is a 3*3 array of scattered light source arrays or a 4*4 array of scattered light source arrays.
  • the array of scattered light sources is disposed on a focal plane of the collimating lens.
  • the pixel unit of the element image array is in one-to-one correspondence with the microlens of the fly-eye lens array.
  • the image resolution of the three-dimensional image display device is adjusted by controlling display information of the pixel unit of the element image array and a switch of each of the directional light sources.
  • the display information of the pixel unit of the element image array corresponding to the different directional light sources is different.
  • the three-dimensional image display device and the three-dimensional image display of the present invention improve the image resolution of the three-dimensional image display device by using a backlight having a plurality of directional light sources;
  • the technical problems of the conventional three-dimensional image display device and the three-dimensional image display are low in image resolution.
  • FIG. 1 is a schematic structural view of a conventional three-dimensional image display device
  • FIG. 2 is a structural block diagram of a preferred embodiment of a three-dimensional image display device of the present invention.
  • FIG. 3 is a schematic structural view of a preferred embodiment of a three-dimensional image display device of the present invention.
  • FIG. 4 is a schematic view showing the working principle of a preferred embodiment of the three-dimensional image display device of the present invention.
  • FIG. 2 is a structural block diagram of a preferred embodiment of the three-dimensional image display device of the present invention.
  • the three-dimensional image display device 20 of the preferred embodiment includes an elemental image array 22, a backlight 21, and a fly-eye lens array 23.
  • the element image array 22 may be composed of a liquid crystal display panel including a plurality of pixel units for displaying three-dimensional scene information;
  • the backlight 21 includes a plurality of directional light sources for providing a display light source to the element image array;
  • the fly-eye lens array 23 includes a plurality of A microlens for processing the three-dimensional scene information to reconstruct the three-dimensional scene in the display area 24.
  • FIG. 3 is a schematic structural view of a preferred embodiment of the three-dimensional image display device of the present invention.
  • the backlight 21 includes a scattering light source array 211 and a collimating lens 212.
  • the scattering light source array 211 includes a plurality of equally spaced arrays of scattered light sources 213, and the scattered light source array 211 of FIG. 3 is a 3*3 array of scattered light source arrays (of course, the scattered light source array 211 can also be set to 4* here). 4 array of scattered light source arrays; collimating lens 212 for converting scattered light of scattered light source 213 into collimated light to form a plurality of directional light sources.
  • the element image array 22 is disposed between the collimator lens 212 of the backlight 21 and the fly-eye lens array 23.
  • the collimating lens 212 is disposed between the scattered light source array 211 and the elemental image array 22, and the scattered light source array 211 is disposed on a focal plane of the collimating lens 212.
  • the incident angles of the outgoing light of the different directional light sources are different from those of the elemental image array 22; since the elemental image array 22 is disposed in parallel with the fly-eye lens array 23, the incident angles of the outgoing light of the different directional light sources with respect to the fly-eye lens array 23 are also different.
  • the pixel elements of the elemental image array 22 are in one-to-one correspondence with the microlenses of the fly-eye lens array 23 to ensure that each microlens can reconstruct the display content of the corresponding pixel unit.
  • FIG. 4 is a schematic diagram showing the working principle of a preferred embodiment of the three-dimensional image display device of the present invention.
  • a certain scattered light source 213 of the scattered light source array 211 of the backlight 21 emits scattered light. Since the scattered light source 213 is disposed on the focal plane of the collimating lens 212, the scattered light passes through The collimating lens 212 is converted to collimated light.
  • the collimated ray emerging from the collimating lens 212 is then incident on the pixel unit 221 of the elemental image array 22 such that the collimated ray emerging from the elemental image array 22 has three-dimensional scene information.
  • the collimated ray having the three-dimensional scene information is then incident on the fly-eye lens array 23, and the collimated ray having the three-dimensional scene information is refracted by the microlens 231 in the fly-eye lens array 23, and the three-dimensional scene is reconstructed in the corresponding display region 24. Since the scattered light of a certain scattered light source 213 is incident on the fly-eye lens array 23 at a fixed incident angle (that is, the incident angles of the outgoing light of the different directional light sources are different from the elemental image array 22 or the fly-eye lens array 23), The scattered light of the scattered light source 23 concentrates the light only in the partial display area 24 to reconstruct the three-dimensional scene. As shown in FIG.
  • the scattered light of the scattering light source 213 at the lower left is concentrated in the upper right area of the microlens 231 of the fly-eye lens array 23, and the scattered light of the scattered light source 213 at the upper left is similarly collected in the fly-eye lens array 23.
  • the scattered light rays of the scattered light source 213 in the middle of the left side are concentrated on the right intermediate portion of the microlens 231 of the fly-eye lens array 23.
  • the different scattered light sources 213 operate in a time-division manner, while the pixel units 221 of the element image array 22 display different display information in a time-division manner, so that the pixel units 221 of the element image array 22 corresponding to different directional light sources (or different scattered light sources 213)
  • the display information is different, the resolution of the display image can be improved.
  • the image resolution of the three-dimensional image display device of the preferred embodiment can be N times that of the existing three-dimensional image display device, and N is the backlight of the three-dimensional image display device. The number of directional light sources included in the source.
  • the pixel unit 221 of the element image array 22 displays the first display information; the second scattered light source 213 in the left of the second time t2 works (other The scattering light source 213 is turned off), the pixel unit 221 of the element image array 22 displays the second display information; the scattering light source 213 at the upper left of the third time t3 operates (the other scattering light sources 213 are turned off), and the pixel unit 221 of the element image array 22 displays the third Display information.
  • the three-dimensional scene of the first display information is reconstructed on the upper right of the microlens 231 of the fly-eye lens array 23 at the first time t1
  • the three-dimensional scene of the second display information is reconstructed in the middle of the right side of the microlens 231 of the fly-eye lens array 23 at the second time t2.
  • the three-dimensional scene of the third display information is reconstructed at the lower right of the microlens 231 of the fly-eye lens array 23 at the third time t3.
  • the content of three pixels is displayed in the display area 24 of the original one pixel, so that the image resolution of the three-dimensional image display device is Three times the existing three-dimensional image display device.
  • the image resolution of the three-dimensional image display device can be made N times that of the existing three-dimensional image display device.
  • the scattering light source array 211 is preferably a scattering light source 213 arranged in an equally spaced array, such that the collimated light emitted from different directions of the backlight 21 can be substantially equiangularly separated (ie, phase).
  • the difference between the incident angles of the adjacent directional light sources and the elemental image array 22 is substantially equal, or less than a set value, so that a plurality of pixels of comparable size can be formed in the original one pixel region, and the plurality of pixels formed can also be formed.
  • the array arrangement is presented in accordance with the scattered light sources in the array of scattered light sources 211.
  • the three-dimensional image display device of the preferred embodiment can adjust the image resolution of the three-dimensional image display device by controlling the display information of the pixel unit 221 of the element image array 22 and the switch of each directional light source.
  • the directional light source in the backlight 21 is divided into four regions, the size of each region is the same and the number of directional light sources in the region is substantially equal, for example, the directional light source of each region corresponds to the pixel of the element image array 22.
  • the different display information of the unit 221, that is, the directional light source of each area is turned on only when the pixel unit 221 has corresponding display information, and the image resolution of the three-dimensional image display apparatus is four times that of the existing three-dimensional image display apparatus. .
  • the image resolution of the three-dimensional image display device is eight times that of the conventional three-dimensional image display device.
  • the image resolution of the three-dimensional image display device can be adjusted.
  • the improvement of the image resolution here depends on other factors such as the refresh frequency of the display information of the pixel unit of the element image array.
  • the embodiment of the invention further provides a three-dimensional image display comprising the above-mentioned three-dimensional image display device, an element image array driving circuit and a backlight driving circuit.
  • the element image array driving circuit is configured to drive an element image array in the three-dimensional image display device
  • the backlight driving circuit is configured to drive the backlight in the three-dimensional image display device.
  • the specific working principle of the three-dimensional image display device of the present invention is the same as or similar to the related description in the preferred embodiment of the three-dimensional image display device described above. For details, refer to the related description in the preferred embodiment of the three-dimensional image display device.
  • the three-dimensional image display device and the three-dimensional image display of the present invention improve the image resolution of the three-dimensional image display device by using a backlight having a plurality of directional light sources; and solve the image analysis of the existing three-dimensional image display device and the three-dimensional image display Lower technical issues.

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

Abstract

一种三维图像显示装置及三维图像显示器，其包括元素图像阵列、背光源以及复眼透镜阵列。元素图像阵列设置在背光源和复眼透镜阵列之间，不同指向性光源的出射光相对元素图像阵列的入射角度不同。通过采用具有多个指向性光源的背光源，提高了三维图像显示装置的图像解析度。

Description

三维图像显示装置及三维图像显示器 技术领域
本发明涉及显示器领域，特别是涉及一种三维图像显示装置及三维图像显示器。
 背景技术
随着科技的发展，在诸如娱乐、游戏、广告、医疗、教育、军事等的各种领域都需要更真实有效地显示图像的三维（三维）图像显示装置。因此，显示装置的开发商已经提出了用于显示三维 图像的各种技术，并且各种类型的三维图像显示装置已经商业化。
图1为一种现有的三维图像显示装置的结构示意图，其通过包括多个微透镜阵列的复眼透镜阵列来显示三维图像。其中11为背光源，12为使用液晶显示面板构成的元素图像阵列，13为复眼透镜阵列。
该三维图像显示装置使用元素图像阵列12通过复眼透镜阵列13采集三维场景信息，比如图示的数字“3”以及字母“D”。然后通过背光源11以及复眼透镜阵列13可以重构元素图像阵列12中的三维场景信息，用户通过裸眼即可实现三维图像的观看，其中图1中的A方向为显示方向。
上述三维图像的显示方法提供了连续的视角，并且三维图像显示装置的结构简单。但是上述三维图像显示装置的图像分辨率取决于复眼透镜阵列13上的微透镜的尺寸，微透镜的尺寸越小，三维图像显示装置的图像分辨率越高。由于小尺寸的微透镜制作成本较高，因此该三维图像显示装置的图像解析度一般较低。
故，有必要提供一种三维图像显示装置及三维图像显示器，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种具有较高图像解析度的三维图像显示装置及三维图像显示器；以解决现有的三维图像显示装置及三维图像显示器的图像解析度较低的技术问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明实施例提供一种三维图像显示装置，其包括：
元素图像阵列，包括多个像素单元，用于显示三维场景信息；
背光源，包括多个指向性光源，用于向所述元素图像阵列提供显示光源；以及
复眼透镜阵列，包括多个微透镜；用于对所述三维场景信息进行处理，以在显示区域重构三维场景；
其中所述元素图像阵列设置在所述背光源和所述复眼透镜阵列之间，不同所述指向性光源的出射光相对所述元素图像阵列的入射角度不同；
相邻所述指向性光源的出射光相对所述元素图像阵列的入射角度差小于设定值；
所述元素图像阵列的所述像素单元，与所述复眼透镜阵列的所述微透镜一一对应。
在本发明所述的三维图像显示装置中，所述背光源包括：
散射光源阵列，包括多个散射光源；以及
准直透镜，用于将所述散射光源的散射光转换为准直光；
其中所述准直透镜设置在所述散射光源阵列与所述元素图像阵列之间；所述散射光源阵列包括多个等间距阵列排布的散射光源。
本发明实施例还提供一种三维图像显示装置，其包括：
元素图像阵列，包括多个像素单元，用于显示三维场景信息；
背光源，包括多个指向性光源，用于向所述元素图像阵列提供显示光源；以及
复眼透镜阵列，包括多个微透镜；用于对所述三维场景信息进行处理，以在显示区域重构三维场景；
其中所述元素图像阵列设置在所述背光源和所述复眼透镜阵列之间，不同所述指向性光源的出射光相对所述元素图像阵列的入射角度不同。
在本发明所述的三维图像显示装置中，相邻所述指向性光源的出射光相对所述元素图像阵列的入射角度差小于设定值。
在本发明所述的三维图像显示装置中，所述背光源包括：
散射光源阵列，包括多个散射光源；以及
准直透镜，用于将所述散射光源的散射光转换为准直光；
其中所述准直透镜设置在所述散射光源阵列与所述元素图像阵列之间。
在本发明所述的三维图像显示装置中，所述散射光源阵列包括多个等间距阵列排布的散射光源。
在本发明所述的三维图像显示装置中，所述散射光源阵列为3*3阵列排布的散射光源阵列或4*4阵列排布的散射光源阵列。
在本发明所述的三维图像显示装置中，所述散射光源阵列设置在所述准直透镜的一焦平面上。
在本发明所述的三维图像显示装置中，所述元素图像阵列的所述像素单元，与所述复眼透镜阵列的所述微透镜一一对应。
在本发明所述的三维图像显示装置中，通过控制所述元素图像阵列的所述像素单元的显示信息以及每个所述指向性光源的开关，调整所述三维图像显示装置的图像解析度。
在本发明所述的三维图像显示装置中，不同所述指向性光源对应的所述元素图像阵列的所述像素单元的显示信息不同。
本发明实施例还提供一种三维图像显示器，其包括：
元素图像阵列驱动电路，用于驱动所述元素图像阵列；
背光源驱动电路，用于驱动所述背光源；以及
三维图像显示装置，包括：
元素图像阵列，包括多个像素单元，用于显示三维场景信息；
背光源，包括多个指向性光源，用于向所述元素图像阵列提供显示光源；以及
复眼透镜阵列，包括多个微透镜；用于对所述三维场景信息进行处理，以在显示区域重构三维场景；
其中所述元素图像阵列设置在所述背光源和所述复眼透镜阵列之间，不同所述指向性光源的出射光相对所述元素图像阵列的入射角度不同。
在本发明所述的三维图像显示器中，相邻所述指向性光源的出射光相对所述元素图像阵列的入射角度差小于设定值。
在本发明所述的三维图像显示器中，所述背光源包括：
散射光源阵列，包括多个散射光源；以及
准直透镜，用于将所述散射光源的散射光转换为准直光；
其中所述准直透镜设置在所述散射光源阵列与所述元素图像阵列之间。
在本发明所述的三维图像显示器中，所述散射光源阵列包括多个等间距阵列排布的散射光源。
在本发明所述的三维图像显示器中，所述散射光源阵列为3*3阵列排布的散射光源阵列或4*4阵列排布的散射光源阵列。
在本发明所述的三维图像显示器中，所述散射光源阵列设置在所述准直透镜的一焦平面上。
在本发明所述的三维图像显示器中，所述元素图像阵列的所述像素单元，与所述复眼透镜阵列的所述微透镜一一对应。
在本发明所述的三维图像显示器中，通过控制所述元素图像阵列的所述像素单元的显示信息以及每个所述指向性光源的开关，调整所述三维图像显示装置的图像解析度。
在本发明所述的三维图像显示器中，不同所述指向性光源对应的所述元素图像阵列的所述像素单元的显示信息不同。
 有益效果
相较于现有的三维图像显示装置及三维图像显示器，本发明的三维图像显示装置及三维图像显示器通过采用具有多个指向性光源的背光源，提高了三维图像显示装置的图像解析度；解决了现有的三维图像显示装置及三维图像显示器的图像解析度较低的技术问题。
 附图说明
图1为一种现有的三维图像显示装置的结构示意图；
图2为本发明的三维图像显示装置的优选实施例的结构框图；
图3为本发明的三维图像显示装置的优选实施例的结构示意图；
图4为本发明的三维图像显示装置的优选实施例的工作原理示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。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。
在图中，结构相似的单元是以相同标号表示。
请参照图2，图2为本发明的三维图像显示装置的优选实施例的结构框图。本优选实施例的三维图像显示装置20包括元素图像阵列22、背光源21以及复眼透镜阵列23。元素图像阵列22可由液晶显示面板构成，其包括多个像素单元，用于显示三维场景信息；背光源21包括多个指向性光源，用于向元素图像阵列提供显示光源；复眼透镜阵列23包括多个微透镜，用于对三维场景信息进行处理，以在显示区域24重构三维图场景。
如图3所示，图3为本发明的三维图像显示装置的优选实施例的结构示意图。背光源21包括散射光源阵列211以及准直透镜212。散射光源阵列211包括多个等间隔阵列排布的散射光源213，图3中的散射光源阵列211为3*3阵列排布的散射光源阵列（当然这里也可将散射光源阵列211设置为4*4阵列排布的散射光源阵列）；准直透镜212用于将散射光源213的散射光转换为准直光，以形成多个指向性光源。
元素图像阵列22设置在背光源21的准直透镜212和复眼透镜阵列23之间。准直透镜212设置在散射光源阵列211与元素图像阵列22之间，散射光源阵列211设置在准直透镜212的一焦平面上。不同指向性光源的出射光相对元素图像阵列22的入射角度不同；由于元素图像阵列22与复眼透镜阵列23平行设置，因此不同指向性光源的出射光相对复眼透镜阵列23的入射角度也不同。元素图像阵列22的像素单元与复眼透镜阵列23的微透镜一一对应，以确保每个微透镜可对相应的像素单元的显示内容进行重构。
下面详细说明本优选实施例的三维图像显示装置的工作原理，请参照图4，图4为本发明的三维图像显示装置的优选实施例的工作原理示意图。
本优选实施例的三维图像显示装置工作时，首先背光源21的散射光源阵列211的某一散射光源213发出散射光线，由于散射光源213设置在准直透镜212的焦平面上，该散射光线经准直透镜212转换为准直光线。
随后由准直透镜212出射的准直光线入射到元素图像阵列22的像素单元221上，使得元素图像阵列22出射的准直光线具有三维场景信息。
然后具有三维场景信息的准直光线入射到复眼透镜阵列23上，该具有三维场景信息的准直光线经过复眼透镜阵列23中的微透镜231折射，在相应的显示区域24重构三维场景。由于某一散射光源213的散射光线，均以固定的入射角度入射到复眼透镜阵列23上（即不同指向性光源的出射光相对元素图像阵列22或复眼透镜阵列23的入射角度不同），因此该散射光源23的散射光线仅在部分显示区域24进行光线聚集，重构三维场景。如图4所示，左下方的散射光源213的散射光线均聚集在复眼透镜阵列23的微透镜231的右上方区域，同理左上方的散射光源213的散射光线均聚集在复眼透镜阵列23的微透镜231的右下方区域，左边中间的散射光源213的散射光线均聚集在复眼透镜阵列23的微透镜231的右边中间区域。
这样不同的散射光源213分时进行工作，同时元素图像阵列22的像素单元221分时显示不同的显示信息，使得不同指向性光源（或不同散射光源213）对应的元素图像阵列22的像素单元221的显示信息不同，则可以提高显示图像的分辨率，理论上本优选实施例的三维图像显示装置的图像分辨率可为现有的三维图像显示装置的N倍，N为三维图像显示装置的背光源包含的指向性光源的数量。
如第一时间t1图4中的左下方散射光源213工作（其他散射光源213关闭），元素图像阵列22的像素单元221显示第一显示信息；第二时间t2左边中间的散射光源213工作（其他散射光源213关闭），元素图像阵列22的像素单元221显示第二显示信息；第三时间t3左上方的散射光源213工作（其他散射光源213关闭），元素图像阵列22的像素单元221显示第三显示信息。这样在第一时间t1复眼透镜阵列23的微透镜231的右上方重构第一显示信息的三维场景，在第二时间t2复眼透镜阵列23的微透镜231的右边中间重构第二显示信息的三维场景，在第三时间t3复眼透镜阵列23的微透镜231的右下方重构第三显示信息的三维场景。在第一时间t1至第三时间t3的时间区域内，由于人眼的暂留效应，在原来一个像素的显示区域24显示了三个像素的内容，使得该三维图像显示装置的图像分辨率为现有的三维图像显示装置的三倍。当然如果有N个散射光源213分N个时间段对不同的显示信息进行三维场景重构，则可以使得该三维图像显示装置的图像分辨率为现有的三维图像显示装置的N倍。
优选的，为了保证三维图像显示装置的成像效果，散射光源阵列211优选为等间距阵列排布的散射光源213，这样使得背光源21的不同方向的准直出射光可以基本等角度分开（即相邻指向性光源的出射光相对元素图像阵列22的入射角度差基本相等，或小于一设定值），从而可以在原来一个像素的区域形成大小相当的多个像素，形成的多个像素也会按照散射光源阵列211中的散射光源呈现阵列排布。
优选的，本优选实施例的三维图像显示装置可通过控制元素图像阵列22的像素单元221的显示信息以及每个指向性光源的开关，调整三维图像显示装置的图像解析度。如将背光源21中的指向性光源划分为四个区域，每个区域的大小相同且区域内的指向性光源的数量大致相等，如每个区域的指向性光源均对应元素图像阵列22的像素单元221的不同的显示信息，即每个区域的指向性光源只在具有像素单元221具有相应的显示信息时开启，则三维图像显示装置的图像分辨率为现有的三维图像显示装置的四倍。
如将背光源21中的指向性光源划分为八个区域，则三维图像显示装置的图像分辨率为现有的三维图像显示装置的八倍。这样通过控制元素图像阵列22的像素单元221的显示信息以及每个指向性光源的开关，可以调整三维图像显示装置的图像解析度。当然这里的图像解析度的提高还取决于元素图像阵列的像素单元的显示信息的刷新频率等其他因素。
本发明实施例还提供一种三维图像显示器，该三维图像显示器包括上述的三维图像显示装置、元素图像阵列驱动电路以及背光源驱动电路。其中元素图像阵列驱动电路用于驱动三维图像显示装置中的元素图像阵列，背光源驱动电路用于驱动三维图像显示装置中的背光源。
本发明的三维图像显示器的具体工作原理与上述的三维图像显示装置的优选实施例中的相关描述相同或相近，具体请参照上述三维图像显示装置的优选实施例中的相关描述。
本发明的三维图像显示装置及三维图像显示器通过采用具有多个指向性光源的背光源，提高了三维图像显示装置的图像解析度；解决了现有的三维图像显示装置及三维图像显示器的图像解析度较低的技术问题。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种三维图像显示装置，其包括：
    元素图像阵列，包括多个像素单元，用于显示三维场景信息；
    背光源，包括多个指向性光源，用于向所述元素图像阵列提供显示光源；以及
    复眼透镜阵列，包括多个微透镜；用于对所述三维场景信息进行处理，以在显示区域重构三维场景；
    其中所述元素图像阵列设置在所述背光源和所述复眼透镜阵列之间，不同所述指向性光源的出射光相对所述元素图像阵列的入射角度不同；
    相邻所述指向性光源的出射光相对所述元素图像阵列的入射角度差小于设定值；
    所述元素图像阵列的所述像素单元，与所述复眼透镜阵列的所述微透镜一一对应。
  2. 根据权利要求1所述的三维图像显示装置，其中所述背光源包括：
    散射光源阵列，包括多个散射光源；以及
    准直透镜，用于将所述散射光源的散射光转换为准直光；
    其中所述准直透镜设置在所述散射光源阵列与所述元素图像阵列之间；所述散射光源阵列包括多个等间距阵列排布的散射光源。
  3. 一种三维图像显示装置，其包括：
    元素图像阵列，包括多个像素单元，用于显示三维场景信息；
    背光源，包括多个指向性光源，用于向所述元素图像阵列提供显示光源；以及
    复眼透镜阵列，包括多个微透镜；用于对所述三维场景信息进行处理，以在显示区域重构三维场景；
    其中所述元素图像阵列设置在所述背光源和所述复眼透镜阵列之间，不同所述指向性光源的出射光相对所述元素图像阵列的入射角度不同。
  4. 根据权利要求3所述的三维图像显示装置，其中相邻所述指向性光源的出射光相对所述元素图像阵列的入射角度差小于设定值。
  5. 根据权利要求3所述的三维图像显示装置，其中所述背光源包括：
    散射光源阵列，包括多个散射光源；以及
    准直透镜，用于将所述散射光源的散射光转换为准直光；
    其中所述准直透镜设置在所述散射光源阵列与所述元素图像阵列之间。
  6. 根据权利要求5所述的三维图像显示装置，其中所述散射光源阵列包括多个等间距阵列排布的散射光源。
  7. 根据权利要求6所述的三维图像显示装置，其中所述散射光源阵列为3*3阵列排布的散射光源阵列或4*4阵列排布的散射光源阵列。
  8. 根据权利要求5所述的三维图像显示装置，其中所述散射光源阵列设置在所述准直透镜的一焦平面上。
  9. 根据权利要求3所述的三维图像显示装置，其中所述元素图像阵列的所述像素单元，与所述复眼透镜阵列的所述微透镜一一对应。
  10. 根据权利要求3所述的三维图像显示装置，其中通过控制所述元素图像阵列的所述像素单元的显示信息以及每个所述指向性光源的开关，调整所述三维图像显示装置的图像解析度。
  11. 根据权利要求10所述的三维图像显示装置，其中不同所述指向性光源对应的所述元素图像阵列的所述像素单元的显示信息不同。
  12. 一种三维图像显示器，其包括：
    元素图像阵列驱动电路，用于驱动所述元素图像阵列；
    背光源驱动电路，用于驱动所述背光源；以及
    三维图像显示装置，包括：
    元素图像阵列，包括多个像素单元，用于显示三维场景信息；
    背光源，包括多个指向性光源，用于向所述元素图像阵列提供显示光源；以及
    复眼透镜阵列，包括多个微透镜；用于对所述三维场景信息进行处理，以在显示区域重构三维场景；
    其中所述元素图像阵列设置在所述背光源和所述复眼透镜阵列之间，不同所述指向性光源的出射光相对所述元素图像阵列的入射角度不同。
  13. 根据权利要求12所述的三维图像显示器，其中相邻所述指向性光源的出射光相对所述元素图像阵列的入射角度差小于设定值。
  14. 根据权利要求12所述的三维图像显示器，其中所述背光源包括：
    散射光源阵列，包括多个散射光源；以及
    准直透镜，用于将所述散射光源的散射光转换为准直光；
    其中所述准直透镜设置在所述散射光源阵列与所述元素图像阵列之间。
  15. 根据权利要求14所述的三维图像显示器，其中所述散射光源阵列包括多个等间距阵列排布的散射光源。
  16. 根据权利要求15所述的三维图像显示器，其中所述散射光源阵列为3*3阵列排布的散射光源阵列或4*4阵列排布的散射光源阵列。
  17. 根据权利要求14所述的三维图像显示器，其中所述散射光源阵列设置在所述准直透镜的一焦平面上。
  18. 根据权利要求12所述的三维图像显示器，其中所述元素图像阵列的所述像素单元，与所述复眼透镜阵列的所述微透镜一一对应。
  19. 根据权利要求12所述的三维图像显示器，其中通过控制所述元素图像阵列的所述像素单元的显示信息以及每个所述指向性光源的开关，调整所述三维图像显示装置的图像解析度。
  20. 根据权利要求19所述的三维图像显示器，其中不同所述指向性光源对应的所述元素图像阵列的所述像素单元的显示信息不同。
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