WO2014075290A1 - 裸眼3d显示装置及其液晶透镜 - Google Patents

裸眼3d显示装置及其液晶透镜 Download PDF

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Publication number
WO2014075290A1
WO2014075290A1 PCT/CN2012/084736 CN2012084736W WO2014075290A1 WO 2014075290 A1 WO2014075290 A1 WO 2014075290A1 CN 2012084736 W CN2012084736 W CN 2012084736W WO 2014075290 A1 WO2014075290 A1 WO 2014075290A1
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Prior art keywords
electrode
liquid crystal
display device
pixel
units
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PCT/CN2012/084736
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English (en)
French (fr)
Inventor
陈峙彣
萧嘉强
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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 US13/703,376 priority Critical patent/US9104032B1/en
Publication of WO2014075290A1 publication Critical patent/WO2014075290A1/zh
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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
    • G02B30/28—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 involving active 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
    • G02B30/27—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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers

Definitions

  • the present invention relates to a liquid crystal display technology, and more particularly to a naked eye 3D display device and a liquid crystal lens thereof which can improve the crosstalk problem in 3D display.
  • display technology has evolved from 2D display to 3D display.
  • the existing 3D display technology is mainly divided into glasses type 3D display technology (stereoscopic Display) and auto-stereoscopic display.
  • the advantage of the naked eye 3D display technology is that it has the convenience of not requiring the use of additional glasses.
  • the naked eye 3D display technology can be achieved by using a parallax barrier, a lenticular lens Lens) or directional backlight to achieve.
  • FIG. 1 is a schematic view showing the operation of a conventional lenticular lens 3D display device.
  • the lenticular lens 3D display device is provided with a lens layer 91 composed of a plurality of lenticular lenses 910 in front of a liquid crystal display panel 90, and the image data of the left and right eyes is passed through the lenticular lens 910 to be refracted by light.
  • the principle is refraction and transmitted to the left and right eyes respectively, so that the user can see the stereo image.
  • FIG. 2 is a schematic structural view of a pixel array and a lenticular lens of a conventional lenticular lens 3D display device.
  • the lenticular lens 910 of the lens layer 91 must be disposed at a specific angle to the pixel column 900 of the liquid crystal display panel to maintain a balance of resolution.
  • Figure 3 for the user through the oblique lenticular lens (Slant Lenticular Lens) A schematic view of a certain viewing angle when viewing an image of a pixel array.
  • a certain viewing angle range 800 accepted by one of the original users is in addition to the pixel unit that provides the right-eye image R.
  • a pixel unit for providing a left-eye image L is also covered, which in turn causes the right eye to receive an image of the left eye, causing crosstalk.
  • this design also makes the 3D viewing angle narrow.
  • the main object of the present invention is to provide a naked-eye 3D display device and a liquid crystal lens thereof, which can improve image crosstalk problems in 3D display.
  • the present invention provides a naked eye 3D display device, including:
  • a display panel having an array of pixels
  • a liquid crystal lens disposed on the display panel, corresponding to the pixel array of the display panel, and including a first electrode, a second electrode, and a liquid crystal layer disposed between the first and second electrodes;
  • the two electrodes comprise a plurality of divided electrode units, each of the electrode units being elongated, and extending obliquely in a stepwise manner along a vertical arrangement direction of the pixel units of the pixel array, and the adjacent two of the electrode units receive different
  • the voltage forms a specific electric field with the first electrode, thereby controlling the alignment direction of the liquid crystal molecules at the corresponding positions in the liquid crystal layer.
  • each of the electrode units extends between pixel units of the pixel array.
  • the first electrode is disposed on a first substrate
  • the second electrode is disposed on a second substrate
  • the second substrate is disposed opposite to the first substrate
  • the adjacent electrode units are insulated from each other and are separated from each other by a length distance of at least one pixel unit.
  • each of the electrode units extending obliquely in a stepped manner includes a vertical segment and a horizontal segment, wherein a length distance of at least one pixel unit between adjacent two horizontal ends of each electrode unit .
  • each pixel unit comprises at least one sub-pixel.
  • each pixel unit comprises three sub-pixels.
  • the present invention further provides a liquid crystal lens for a naked-eye 3D display device, which corresponds to a pixel array of a display panel, and includes:
  • a second electrode disposed opposite to the first electrode and comprising a plurality of divided electrode units, each of the electrode units being elongated and stepped in a direction along a vertical arrangement of the pixel units of the pixel array Extending obliquely, two adjacent electrode units receive different voltages to form a specific electric field with the first electrode;
  • a liquid crystal layer is disposed between the first electrode and the second electrode, wherein an alignment direction of the liquid crystal molecules in the liquid crystal layer is controlled by a specific electric field formed by the electrode unit and the first electrode at corresponding positions.
  • each of the electrode units extends between pixel units of the pixel array.
  • the first electrode is disposed on a first substrate
  • the second electrode is disposed on a second substrate
  • the second substrate is disposed opposite to the second substrate
  • the liquid crystal lens replaces the prior art lenticular lens structure based on the principle that the liquid crystal alignment can change the traveling direction of the light, and the image of the display panel passes through the liquid crystal by applying different voltages to the separated electrode units of the second electrode.
  • the liquid crystal layer of the lens is then divided into the images of the left and right eyes, so that the user can receive the image with the 3D effect, and at the same time, the second electrode constituting the liquid crystal lens extends obliquely in a stepwise manner, which is different from the conventional oblique cylindrical lens.
  • FIG. 1 is a schematic view showing the operation of a conventional lenticular lens 3D display device.
  • FIG. 2 is a schematic view showing the structure of a pixel array and a lenticular lens of a conventional lenticular lens 3D display device.
  • FIG 3 is a schematic view of a certain angle of view when a user views an image of a pixel array by obliquely lenticular lenses.
  • FIG. 4 is a schematic structural view of a preferred embodiment of a naked-eye 3D display device of the present invention.
  • FIG. 5 is a schematic diagram showing the arrangement of electrodes of a pixel array and a liquid crystal lens according to a preferred embodiment of the naked-eye 3D display device of the present invention.
  • FIG. 6 is a schematic diagram of a certain angle of view when a user views an image of a pixel array through a liquid crystal lens of the naked-eye 3D display device of the present invention.
  • FIG. 4 is a schematic structural view of a naked eye 3D display device according to a preferred embodiment of the present invention.
  • the naked eye 3D display device of the present invention mainly comprises a display panel 1 and a liquid crystal lens 2.
  • the display panel 1 is used to provide two-dimensional images, and the liquid crystal lens 2 converts two-dimensional images into three-dimensional images.
  • the display panel 1 has a pixel array 10 composed of a plurality of regularly arranged pixel units 100.
  • 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 define a plurality of sub-pixel regions, and the switching element and the pixel electrode are disposed in each sub-pixel region to
  • the pixel array 10 is further configured by a photoresist unit corresponding to the color filter substrate.
  • the display panel 1 also includes a backlight module to provide sufficient light source to display an image.
  • the liquid crystal lens 2 is disposed on the display panel 1 and disposed on a light exiting surface of the display panel 1 and correspondingly overlaps the pixel array 10.
  • the liquid crystal lens 2 mainly includes a first electrode 20, a second electrode 21 and a liquid crystal layer 22.
  • the first electrode 20 is disposed on a first substrate 23.
  • the first electrode 20 may be a transparent conductive film made of indium tin oxide, which can be used to receive a reference voltage.
  • the second electrode 21 is disposed opposite to the first electrode 20 and disposed on a second substrate 24 .
  • the second substrate 24 is disposed opposite to the first substrate 200 .
  • the second electrode 21 includes a plurality of divided electrode units 210 which can be formed by patterning a transparent conductive film such as indium tin oxide.
  • each of the electrode units 210 has an elongated shape and extends obliquely in a stepwise manner along a vertical alignment direction D1 of the pixel unit 100 of the pixel array 10, wherein two adjacent electrode units are adjacent. 210 is configured to receive a different voltage to form a specific electric field with the first electrode 20. In this embodiment, each of the electrode units 210 is extended between the pixel units 100 of the pixel array 10.
  • the liquid crystal layer 22 is disposed between the first electrode 20 and the second electrode 21, and the arrangement direction of the liquid crystal molecules in the liquid crystal layer 22 is affected by the electrode unit 210 and the corresponding position thereof.
  • the odd-numbered electrode unit 210 can receive a voltage V0, and the even-numbered electrode unit 210 receives the voltage V1, so that the electrode unit 210 and the first electrode 20 in the adjacent position will Different electric fields are formed.
  • the liquid crystal molecules in the liquid crystal layer 22 will rotate with the corresponding electric field, and when the light from the two-dimensional image of the display panel 1 passes through the liquid crystal molecules, the light and the formation of the left-eye image are formed based on the principle of refraction.
  • the light from the right eye image is projected at different angles and finally reaches the user's eyes. Users can view images with 3D effects. Therefore, the liquid crystal lens 2 can provide the same optical effect as a conventional oblique lenticular lens.
  • each of the pixel units 100 includes at least one sub-pixel, for example, may include three sub-pixels. Further, the adjacent two of the electrode units 210 are insulated from each other and separated from each other by a length distance of at least one pixel unit 100. Each of the electrode units 210 extending obliquely in a stepped manner includes a vertical segment 210a and a horizontal segment 210b, wherein adjacent two horizontal ends 210b of each electrode unit 210 are separated by a length distance of at least one pixel unit 100.
  • the naked eye 3D display device of the present invention replaces the prior art oblique lenticular lens with the liquid crystal lens 2 by separating the second electrode 21 by the principle that the liquid crystal alignment can change the traveling direction of the light.
  • the electrode unit 210 applies different voltages to control the arrangement of the liquid crystals, so that the two-dimensional image of the display panel 1 is divided into the left and right eyes by the liquid crystal layer 22 of the liquid crystal lens 2, so that the user can receive the 3D effect. image.
  • the liquid crystal lens 2 not only provides the same function as the conventional oblique lenticular lens, but also the electrode unit 210 of the second electrode 21 is obliquely extended in a stepped manner, and can correctly distinguish the left and right sides.
  • the image of the eye it can be seen from the figure that a range of viewing angles 300 accepted by the user's right eye completely falls on the pixel unit providing the right-eye image R without receiving the left-eye image provided by the adjacent pixel unit. And constitute a crosstalk phenomenon. Therefore, the naked-eye 3D display device of the present invention is different from the conventional oblique lenticular lens technology, and can effectively improve the crosstalk phenomenon of left and right eye images.
  • the naked eye 3D display device of the present invention achieves the purpose of converting a two-dimensional image into a three-dimensional image by using a liquid crystal lens compared to the existing 3D display technology, and at the same time, constitutes a second liquid crystal lens.
  • the electrode extends obliquely in a stepped manner, which is different from the conventional oblique cylindrical lens, which can effectively improve the crosstalk phenomenon of the left and right eye images.

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  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
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  • Chemical & Material Sciences (AREA)
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Abstract

一种裸眼3D显示装置，包含一显示面板（1）及一液晶透镜（2）。液晶透镜（2）设于显示面板（1）表面上，对应重叠显示面板（1）的像素阵列（10），并包含第一电极（20）、第二电极（21）及设置于第一与第二电极（20，21）之间的液晶层（22）。第二电极（21）包含数个分隔的电极单元（210），每一电极单元（210）呈长条状，且沿着像素的垂直排列方向（D1）以阶梯形式斜向延伸。相邻两条电极单元（210）接收不同电压而与第一电极（20）形成特定电场，改变液晶层（22）中在对应位置的液晶分子的排列方向。液晶透镜（2）的结构改善左右眼影像的串扰现象。

Description

裸眼3D显示装置及其液晶透镜 技术领域
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裸眼3D显示装置及其液晶透镜。
 背景技术
为了满足视觉体验，显示技术已从2D显示发展至3D显示。现有的3D显示技术主要分为眼镜式3D显示技术(stereoscopic display)和裸眼3D显示技术(auto-stereoscopic display)。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所示，图1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，让左、右眼的影像资料穿过柱状透镜910，进而通过光折射原理(refraction)而分别传输至左、右眼，如此使用者即可看到立体影像。
进一步参考图2所示，图2是现有的柱状透镜3D显示装置的像素阵列与柱状透镜的结构示意图。在使用柱状透镜的裸眼3D显示器的设计中，必须将透镜层91的柱状透镜910设置成与液晶显示面板的像素列900成一特定角度，以保持分辨率的平衡。然而，如图3所示，为使用者通过斜向柱状透镜(Slant Lenticular Lens)观看像素阵列的影像时的某一视角的示意图，从图中可看出原本使用者的其中一眼所接受的某一视角范围800中，除了落在提供右眼影像R的像素单元之外，还涵盖了部分用以提供左眼影像L的像素单元，进而导致右眼接收到左眼的影像，产生串扰现象。此外，此种设计也使得3D视角变得狭窄。
故，有必要提供一种裸眼3D显示装置及其液晶透镜，以解决现有技术所存在的问题。
 技术问题
有鉴于现有技术的缺点，本发明的主要目的在于提供一种裸眼3D显示装置及其液晶透镜，可改善3D显示时的影像串扰问题。
 技术解决方案
为达成本发明的前述目的，本发明提供一种裸眼3D显示装置，包括：
一显示面板，具有一像素阵列；以及
一液晶透镜，设于所述显示面板上，对应重叠所述显示面板的像素阵列，并包含第一电极、第二电极及设置于第一与第二电极之间的液晶层；其中所述第二电极包含数个分隔的电极单元，每一电极单元呈长条状，且沿着所述像素阵列的像素单元的垂直排列方向以阶梯形式斜向延伸，相邻两条所述电极单元接收不同电压而与所述第一电极形成特定电场，进而控制所述液晶层中在对应位置的液晶分子的排列方向。
在本发明的一实施例中，每一所述电极单元延伸于所述像素阵列的像素单元之间。
在本发明的一实施例中，所述第一电极设于一第一基板上，所述第二电极设于一第二基板上，所述第二基板与所述第一基板相对设置。
在本发明的一实施例中，相邻的所述电极单元彼此绝缘分隔开且彼此相隔至少一个像素单元的长度距离。
在本发明的一实施例中，所述以阶梯形式斜向延伸的每一电极单元包含垂直段与水平段，其中每一电极单元的相邻两水平端之间相隔至少一个像素单元的长度距离。
在本发明的一实施例中，每一像素单元包含至少一个子像素。
在本发明的一实施例中，每一像素单元包含三个子像素。
本发明另提供一种用于裸眼3D显示装置的液晶透镜，其对应重叠一显示面板的像素阵列，并包含：
第一电极；
第二电极，与所述第一电极相对设置，并包含数个分隔的电极单元，每一所述电极单元呈长条状，且沿着所述像素阵列的像素单元的垂直排列方向以阶梯形式斜向延伸，相邻两所述电极单元接收不同电压而与所述第一电极形成特定电场；以及
一液晶层，设置于所述第一电极与第二电极之间，所述液晶层中液晶分子的排列方向受其对应位置的所述电极单元与第一电极形成的特定电场控制。
在本发明的一实施例中，每一所述电极单元延伸于所述像素阵列的像素单元之间。
在本发明的一实施例中，所述第一电极设于一第一基板上，所述第二电极设于一第二基板上，所述第二基板与所述第二基板相对设置。
 有益效果
在上述说明中，液晶透镜基于液晶排列可改变光行进方向的原理取代现有技术的柱状透镜结构，通过对第二电极的分隔开的电极单元施加不同的电压，使得显示面板的影像通过液晶透镜的液晶层之后被分成左右眼的影像，让使用者可接收具3D效果的影像，同时，构成液晶透镜的第二电极以阶梯形式斜向延伸，有别于传统斜向柱状透镜，可有效改善左右眼影像的串扰现象。
 附图说明
图1是现有的柱状透镜3D显示装置的操作示意图。
图2是现有的柱状透镜3D显示装置的像素阵列与柱状透镜的结构示意图。
图3是使用者通过斜向柱状透镜观看像素阵列的影像时的某一视角的示意图。
图4是本发明裸眼3D显示装置一较佳实施例的结构示意图。
图5是本发明裸眼3D显示装置一较佳实施例的像素阵列与液晶透镜的电极的配置示意图。
图6是使用者通过本发明裸眼3D显示装置的液晶透镜观看像素阵列的影像时的某一视角的示意图。
 本发明的最佳实施方式
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4所示，图4是本发明裸眼3D显示装置一较佳实施例的结构示意图。本发明的裸眼3D显示装置主要包含一显示面板1及一液晶透镜2。所述显示面板1用以提供二维的影像，而液晶透镜2则将2维的影像转换成三维影像。
同时参考图5所示，所述显示面板1具有一像素阵列10，该像素阵列10由多个规则排列的像素单元100组成。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定义多个子像素区，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，进而构成所述像素阵列10。所述显示面板1也包含一背光模组，以提供足够光源来显示影像。
所述液晶透镜2是设于所述显示面板1上，而且是设置所述显示面板1的一出光平面上，并且对应重叠所述像素阵列10。所述液晶透镜2主要包含一第一电极20、一第二电极21及一液晶层22。
如图4所示，所述第一电极20是设于一第一基板23上，一般来说，所述第一电极20可为氧化铟锡构成的透明导电膜，可用以接收一参考电压。
如图4所示，所述第二电极21与所述第一电极20相对设置，且是设于一第二基板24上，所述第二基板24与所述第一基板200相对设置。所述第二电极21包含数个分隔的电极单元210，可通过对透明导电膜(如氧化铟锡)图案化来形成。
参考图5所示，每一所述电极单元210呈长条状，且沿着所述像素阵列10的像素单元100的垂直排列方向D1以阶梯形式斜向延伸，其中相邻两所述电极单元210用以接收不同电压来与所述第一电极20形成特定电场。本实施例中，每一所述电极单元210是延伸于所述像素阵列10的像素单元100之间。
如图4所示，所述液晶层22设置于所述第一电极20与第二电极21之间，所述液晶层22中液晶分子的排列方向受其对应位置的所述电极单元210与第一电极20形成的特定电场控制。
举例来说，如图5所示，奇数的电极单元210可接收一电压V0，偶数的电极单元210接收电压V1，如此一来，相邻位置的电极单元210与所述第一电极20便会形成不同电场。此时，所述液晶层22中液晶分子就会随着对应的的电场转动，而当来自显示面板1的二维影像的光线通过液晶分子时，基于折射原理，形成左眼影像的光线与形成右眼影像的光线便会以不同角度投射出去，最后分别抵达使用者的双眼。使用者便可观看到具3D效果的影像。因此，所述液晶透镜2可提供与传统斜向柱状透镜一样的光学效果。
在本实施例中，每一所述像素单元100包含至少一个子像素，例如可包含三个子像素。此外，相邻两所述电极单元210彼此绝缘分隔开且彼此相隔至少一个像素单元100的长度距离。所述以阶梯形式斜向延伸的每一电极单元210包含垂直段210a与水平段210b，其中每一电极单元210的相邻两水平端210b之间相隔至少一个像素单元100的长度距离。
基于液晶排列可改变光行进方向的原理，本发明的裸眼3D显示装置以所述液晶透镜2来取代现有技术的斜向柱状透镜，所述液晶透镜2通过对第二电极21的分隔开的电极单元210施加不同的电压来控制液晶的排列，进而使得显示面板1的二维影像通过液晶透镜2的液晶层22之后被分成左、右眼的影像，让使用者可接收具3D效果的影像。
同时，如图6所示，所述液晶透镜2不只提供与传统斜向柱状透镜一样的功能，其第二电极21的电极单元210以阶梯形式斜向延伸的结构，可正确地区隔左、右眼的影像，从图中可看出使用者的右眼所接受的某一视角范围300完全落在提供右眼影像R的像素单元上，而不致于接收到相邻像素单元提供的左眼影像而构成串扰现象。因此本发明的裸眼3D显示装置有别于传统斜向柱状透镜技术，可有效改善左右眼影像的串扰现象。
综上所述，相较于现有3D显示技术具有影像串扰的问题，本发明的裸眼3D显示装置以液晶透镜来达到将二维影像转成三维影像的目的，同时，构成液晶透镜的第二电极以阶梯形式斜向延伸，有别于传统斜向柱状透镜，可有效改善左右眼影像的串扰现象。
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。
 本发明的实施方式
工业实用性
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Claims (13)

  1. 一种裸眼3D显示装置，其包含：
    一显示面板，具有一像素阵列；以及
    一液晶透镜，设于所述显示面板上，对应重叠所述显示面板的像素阵列，并包含第一电极、第二电极及设置于第一与第二电极之间的液晶层；其中所述第二电极包含数个分隔的电极单元，每一电极单元呈长条状，且沿着所述像素阵列的像素单元的垂直排列方向以阶梯形式斜向延伸，每一所述电极单元延伸于所述像素阵列的像素单元之间，相邻的所述电极单元彼此绝缘分隔开且彼此相隔至少一个像素单元的长度距离，相邻两条所述电极单元接收不同电压而与所述第一电极形成特定电场，进而控制所述液晶层中在对应位置的液晶分子的排列方向。
  2. 如权利要求1所述的裸眼3D显示装置，其中：所述第一电极设于一第一基板上，所述第二电极设于一第二基板上，所述第二基板与所述第二基板相对设置。
  3. 如权利要求2所述的裸眼3D显示装置，其中：所述以阶梯形式斜向延伸的每一电极单元包含垂直段与水平段，其中每一电极单元的相邻两水平端之间相隔至少一个像素单元的长度距离。
  4. 一种裸眼3D显示装置，其包含：
    一显示面板，具有一像素阵列；以及
    一液晶透镜，设于所述显示面板上，对应重叠所述显示面板的像素阵列，并包含第一电极、第二电极及设置于第一与第二电极之间的液晶层；其中所述第二电极包含数个分隔的电极单元，每一电极单元呈长条状，且沿着所述像素阵列的像素单元的垂直排列方向以阶梯形式斜向延伸，相邻两条所述电极单元接收不同电压而与所述第一电极形成特定电场，进而控制所述液晶层中在对应位置的液晶分子的排列方向。
  5. 如权利要求4所述的裸眼3D显示装置，其中：每一所述电极单元延伸于所述像素阵列的像素单元之间。
  6. 如权利要求4所述的裸眼3D显示装置，其中：所述第一电极设于一第一基板上，所述第二电极设于一第二基板上，所述第二基板与所述第二基板相对设置。
  7. 如权利要求4所述的裸眼3D显示装置，其中：相邻的所述电极单元彼此绝缘分隔开且彼此相隔至少一个像素单元的长度距离。
  8. 如权利要求4所述的裸眼3D显示装置，其中：所述以阶梯形式斜向延伸的每一电极单元包含垂直段与水平段，其中每一电极单元的相邻两水平端之间相隔至少一个像素单元的长度距离。
  9. 如权利要求8所述的裸眼3D显示装置，其中：每一像素单元包含至少一个子像素。
  10. 如权利要求9所述的裸眼3D显示装置，其中：每一像素单元包含三个子像素。
  11. 一种用于裸眼3D显示装置的液晶透镜，其中：所述液晶透镜对应重叠一显示面板的像素阵列，并包含：
    第一电极；
    第二电极，与所述第一电极相对设置，并包含数个分隔的电极单元，每一所述电极单元呈长条状，且沿着所述像素阵列的像素单元的垂直排列方向以阶梯形式斜向延伸，相邻两所述电极单元接收不同电压而与所述第一电极形成特定电场；以及
    一液晶层，设置于所述第一电极与第二电极之间，所述液晶层中液晶分子的排列方向受其对应位置的所述电极单元与第一电极形成的特定电场控制。
  12. 如权利要求11所述的用于裸眼3D显示装置的液晶透镜，其中：每一所述电极单元延伸于所述像素阵列的像素单元之间。
  13. 如权利要求12所述的用于裸眼3D显示装置的液晶透镜，其中：所述第一电极设于一第一基板上，所述第二电极设于一第二基板上，所述第二基板与所述第二基板相对设置。
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