WO2015096338A1 - 2d/3d切换装置及显示设备 - Google Patents

2d/3d切换装置及显示设备 Download PDF

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Publication number
WO2015096338A1
WO2015096338A1 PCT/CN2014/076561 CN2014076561W WO2015096338A1 WO 2015096338 A1 WO2015096338 A1 WO 2015096338A1 CN 2014076561 W CN2014076561 W CN 2014076561W WO 2015096338 A1 WO2015096338 A1 WO 2015096338A1
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WIPO (PCT)
Prior art keywords
cavity
storage tank
vacuum pump
liquid storage
switching device
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PCT/CN2014/076561
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English (en)
French (fr)
Inventor
王俊伟
郑萧逸
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/429,838 priority Critical patent/US9759904B2/en
Publication of WO2015096338A1 publication Critical patent/WO2015096338A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
    • 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
    • G02B30/27—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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a 2D/3D switching device and a display device including the 2D/3D switching device.
  • 3D display has become a popular trend in the display industry.
  • the basic principle of the current 3D display is "parallax produces stereo".
  • the left and right eye images are images taken from two angles of a certain spatial scene.
  • the left eye image and the right eye image are collectively referred to as a stereo image pair.
  • the human brain will see the two images of the two eyes.
  • the graphs are merged to produce a 3D effect.
  • the 3D display in the prior art is mainly divided into a glasses type and a naked eye type, wherein the glasses type 3D display mainly relies on the viewer wearing the 3D glasses to obtain the 3D display effect, but this seriously affects the viewer's experience and the viewer is limited. Freedom, at the same time is not good for myopia or far-sighted viewers; naked-eye includes parallax baffle and cylindrical lens grating, liquid crystal grating and so on.
  • the prior art discloses a grating 2D/3D switching device comprising a deformed cylindrical lens grating and a 2D display, wherein the deformed cylindrical lens grating is provided with two mutually incompatible transparent liquids, and the refractive indexes of the two transparent liquids are different.
  • the 3 ⁇ 4 transparent elastic film separates the two transparent liquids.
  • the two surfaces of the elastic film are supported by a plurality of transparent support plates, and the external force drives the liquid flow and the support of the support plate to achieve The deformation of the elastic film is controlled.
  • the elastic film has two kinds of planar shape and cylindrical shape, and the shape of the elastic film is changed, thereby switching the 2D/3D display. It has been found in practical applications that such a switching device is very unstable and its structure is very complicated and difficult to implement.
  • the technical problem to be solved by the present invention is to provide a 2D/3D switching device which is simple in structure and easy to implement.
  • the switching layer includes a cylindrical lens grating and a cavity surrounded by the cylindrical curved surface of the cylindrical lens grating and the cover body
  • a liquid storage tank for storing a transparent liquid having a refractive index which is the same as a refractive index of a material forming the cylindrical lens grating;
  • a vacuum pump respectively connected to the cavity in the switching layer, the liquid storage tank, for injecting the transparent liquid plexus into the cavity in the switching layer, or the transparent Liquid is injected from the chamber into the reservoir.
  • a vacuum tank is further disposed, wherein the vacuum pump is connected to the cavity in the switching layer through the vacuum tank, and the vacuum tank is respectively sealed with the air suction hole of the vacuum pump and the cavity in the switching layer Connected.
  • the vacuum raft includes an airflow grading groove, an air compression groove, a pneumatic piston, and a sealing ring;
  • the airflow gentle groove is in sealing communication with the air venting hole of the vacuum pump, the air compression groove is adjacent to the airflow grading groove, and a communication hole is disposed between the airflow grading groove and the air compression groove;
  • the sealing ring is configured to sealingly communicate the vacuum chamber with a cavity in the switching layer, the pneumatic piston is disposed in the air compression groove, and the air is compressed according to the air pressure of the air compression groove Move inside the slot.
  • the liquid storage tank is in sealing communication with the cavity, and the liquid storage tank is in communication with an exhaust hole of the vacuum pump.
  • a side of the liquid storage tank connected to the exhaust hole of the vacuum pump is further provided with a pneumatic piston or an elastic film matched with the liquid storage tank.
  • the position of the suction hole of the vacuum pump is set to a first electric valve
  • the position of the exhaust hole of the vacuum pump is disposed with a second electric valve
  • the first electric valve is configured to control opening and closing of the air suction hole
  • the second electric valve is used to control opening and closing of the exhaust hole.
  • the transparent liquid has electrical conductivity
  • a first electrode and a second electrode are disposed inside the vacuum chamber, the first electrode is electrically connected to the first electric valve, and the second electrode and the second electric valve are The electrical connection, wherein the first electric valve and the second electric valve control the air vent and the vent opening when the first electrode and the second electrode are in communication with the transparent liquid.
  • the material of the cylindrical lens is made of glass, quartz or resin, and the transparent liquid is Organic solvent, organic solution or aqueous solution.
  • the inner side of the cavity of the switching layer is coated with a hydrophobic material.
  • the invention also provides a display device comprising a display panel, further comprising a 2D/3D switching device as described.
  • the present invention provides a 2D/3D switching device and a display device for switching between 2D/3D by injecting or extracting a transparent liquid having the same refractive index as a cylindrical lens grating material in a switching layer including a cavity.
  • the structure of the present invention is simple and easy to implement.
  • FIG. 1 is a schematic structural view of a 2D/3D switching device according to an embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional view of a switching layer according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a vacuum tank provided by an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a liquid storage tank provided by an embodiment of the present invention.
  • FIG. 5 is another schematic structural view of a vacuum tank provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a 2D/3D switching device according to an embodiment of the present invention in a 3D mode
  • FIG. 7 is a schematic diagram of a 2D/3D switching device according to an embodiment of the present invention in a 2D mode.
  • FIG. 1 is a schematic diagram showing the structure of a 2D/3D switching device according to an embodiment of the present invention.
  • the switching device includes a switching layer 4, a liquid storage tank 2, and a vacuum pump 5.
  • the switching layer 4 is adjacent to the display panel i, and the switching layer 4 includes a cylindrical lens stop 4b and a cavity 4a surrounded by a cylindrical curved surface of the cylindrical lens light » 4b.
  • the liquid storage tank 2 is configured to store a transparent liquid, and the refractive index of the transparent liquid is connected with the cylindrical lens forming vacuum pump 5 and the cavity 4a in the switching layer 4 and the liquid storage tank 2, respectively, for The transparent liquid is injected into the cavity 4a of the switching layer 4 from the liquid storage tank 2, or The transparent liquid is injected into the reservoir 2 from the cavity 4a.
  • the specific structure of the switching layer 4 is shown in Fig. 2, which includes cylindrical lens light » 4b and a cavity 4a surrounded by a cylindrical curved surface of the cylindrical lens grating and the cover.
  • the structure of the switching layer 4 is specifically: covering the cylindrical lens grating 4b with a cover, which is fixed to the cylindrical lens grating 4b by adhesion or other means, and the cover is formed between the cover and the upper surface of the cylindrical lens grating 4b. Cavity 4a.
  • the cover is available with a glass cover.
  • the material for forming the cylindrical lens grating 4b may be, for example, glass, quartz or resin. Of course, in addition to the listed materials, other materials having the same or similar characteristics as the materials exemplified above may be employed.
  • the switching device further includes a vacuum tank 3.
  • the specific structure of the vacuum tank 3 is shown in FIG. 3.
  • the vacuum tank can be a cavity of any shape.
  • the rectangular tank is taken as an example, and the vacuum tank 3 is sealed and processed by a sealing layer.
  • the chamber 1 in the 4 is connected, and includes a first chamber and a second chamber, respectively, which are an air flow gentle groove 3a and an air compression groove 3b, and further includes a pneumatic piston 3c and a seal ring 3d.
  • the airflow gentle groove 3a is in sealing communication with the air suction hole of the vacuum pump 5, that is, the vacuum pump 5 is connected to the cavity 4a in the switching layer 4 through the vacuum tank 3;
  • the air compression groove 3b is adjacent to the airflow grading groove 3a, and the air compression groove 3b controls the air pressure change by the vacuum pump to realize the pumping and releasing of the liquid; and between the airflow grading groove 3a and the air compression groove 3b.
  • the regularly arranged communication holes the air pressure change of the first chamber is uniformly conducted to the second chamber through the communication holes.
  • the pneumatic piston 3c moves in the second chamber to pump or release the transparent liquid.
  • the liquid storage tank 2 is used for storing a transparent liquid, and the refractive index of the transparent liquid is the same as the refractive index of the cylindrical lens grating.
  • the transparent liquid may be organic, for example.
  • the liquid storage tank is connected to the vacuum pump.
  • the A side of the liquid storage tank is connected with the vent hole of the vacuum pump, and a pneumatic piston or an elastic film matched with the liquid storage tank may be disposed inside the A side of the liquid storage tank.
  • the pneumatic piston is moved or the elastic film is deformed, and the transparent liquid in the liquid storage tank is injected into the cavity 4a of the switching layer 4 from the C surface of the liquid storage tank, optionally,
  • the B side of the liquid storage tank is also connected to the vent hole of the vacuum pump, and a pneumatic piston or an elastic film matching the liquid storage tank is arranged inside the B side of the liquid storage tank, and the vacuum pump passes through the storage.
  • the liquid pressure is applied to both sides A and B, and the transparent liquid can be injected into the cavity 4a more quickly.
  • a first electric valve is disposed at a position of a suction hole of the vacuum pump 5, and a second electric valve is disposed at a position of a vent hole of the vacuum pump 5, wherein the first electric valve and the second electric valve are used for controlling the air vent and the exhaust Opening and closing of the hole.
  • the vacuum pump 5 is turned on, the first electric valve and the second electric valve are opened, the vacuum chamber 3 is evacuated through the air suction hole of the vacuum pump, and the extracted gas is discharged through the vent hole.
  • the vacuum tank 3 is in a negative pressure state, in this negative pressure state, the transparent liquid is sucked into the cavity 4a in the switching layer 4 by the liquid storage tank 2, and when the cavity 4a is filled with the transparent liquid, the vacuum pump 5 is used.
  • the first electronically controlled valve and the second electronically controlled valve are closed, so that the vacuum chamber forms a closed space, and the transparent liquid located in the cavity 4a is in a stationary state.
  • the display panel is set to the 3D working mode in the initial state, and when the image is transmitted through the switching layer, since the chamber is not filled with the transparent liquid, only air is left, and therefore, the light path occurs by the action of the cylindrical lens grating.
  • the prior art by designing appropriate parameters specifically includes setting the height of the cylindrical lens grating.
  • the vacuum pump when the switching device needs to be switched to the 2D mode, the vacuum pump is turned on, the first electric valve and the second electric wide door are opened, the vacuum chamber is in a negative pressure state, and the transparent liquid is sucked into the cavity in the switching layer by the liquid storage tank. After the cavity is filled with the transparent liquid, the vacuum pump is turned off, thereby closing the first electronically controlled valve and the second electronically controlled valve, so that the vacuum chamber forms a closed space, and the transparent liquid located in the cavity is at a standstill, thereby making 2D The /3D switching device maintains the 2D mode.
  • the structure of the vacuum chamber 3 further includes a first electrode 31 and a second electrode 32 disposed inside the vacuum chamber, wherein the first electrode 31 may be a positive electrode and the second electrode 32 may be a negative electrode.
  • the first electrode is connected to the first electric valve, and the second electrode is connected to the second electric wide door, and has conductivity in the transparent liquid, when the first electrode and the second electrode are connected through the transparent liquid, A first electric valve and a second electric valve control the air vent and the vent is closed.
  • the working principle of the 2D/3D switching device will be specifically described: Referring to FIG.
  • the display panel is set to the 3D working mode in the initial state, and when the image is transmitted through the switching layer, since there is no chamber in the chamber The transparent liquid is filled, leaving only air. Therefore, the optical path is changed by the action of the cylindrical lens grating, and the 3D display effect is achieved by appropriate parameter design.
  • the prior art by designing appropriate parameters specifically includes setting the height of the cylindrical lens grating.
  • the width of each of the cylindrical lenses in the cylindrical lens cabinet shown in FIG. 6 matches the width of the four columns of pixel units of the display panel.
  • pixel A, pixel B, pixel C, and pixel D respectively display four disparity maps, and the four pixels emit light through the column lens grating of the switching layer, corresponding to the viewpoints A ', BC, and D, respectively.
  • the viewer sees only one parallax map (pixel C) in the left eye, and a parallax map (pixel B) in the right eye.
  • the human brain combines the two disparity maps seen by the two eyes to generate 3D. effect.
  • the parameters such as the width of each cylindrical lens of the cylindrical lens light can be specifically adjusted according to design requirements. For example, the width of the cylindrical lens grating can be matched to the width of the two columns of pixel units of the display panel.
  • the vacuum pump is turned on, the first electric valve and the second electric wide door are opened, the vacuum chamber is in a negative pressure state, and the transparent liquid is sucked into the cavity in the switching layer by the liquid storage tank. After the cavity is filled with the transparent liquid, it enters the vacuum chamber; since the first electrode and the second electrode are disposed in the vacuum chamber, and the transparent liquid has conductivity, when the transparent liquid in the vacuum chamber reaches a certain level At the height, the two electrodes connected in the vacuum chamber are turned on, so that the first electric wide door and the second electric valve are closed, so that the vacuum chamber forms a closed space, and the vacuum pump passes the gas extracted from the vacuum tank through the pipeline and the liquid storage.
  • the trough is connected, and the pneumatic piston advances at the two ends of the liquid storage tank to advance or make the elastic film near the connection port deform, and the transparent liquid in the cavity is in a static state, so that the 2D/3D switching device maintains 2D. mode.
  • the 2D working mode the viewer's double warmth can see all the images on the display panel (ie, pixel, pixel B, pixel C, pixel D) through the switching layer, and the image perceived by the viewer is a 2D image. .
  • the superhydrophobic material can be coated on the inner side of the cavity of the switching layer, except for the negative pressure. Outside the attraction, the transparent liquid will not enter the chamber due to siphoning.
  • the 2D/3D switching device comprises a cylindrical lens grating and a cavity formed by the cylindrical curved surface of the cylindrical lens grating and the cover body, and the refractive index is the same as that of the cylindrical lens light by injecting or extracting the refractive index into the cavity.
  • the transparent liquid realizes switching between 2D/3D, and the invention has a simple structure, is easy to implement, and is easier to realize enlargement than the existing columnar prism type 2D/3D switchable device, and since the present invention does not require a deformed cylindrical lens Complex systems such as gratings, solution-based electrochromic materials, electric field drives, or a variety of demanding solutions are less expensive.
  • the transparent liquid filling and the elimination are realized by the piston movement and the gravity of the transparent liquid, and no additional energy is required, thereby achieving the energy saving effect.
  • the vacuum pump is used to perform the operation of injecting the transparent liquid into the cavity in the switching layer from the reservoir, or injecting the transparent liquid into the reservoir from the chamber, but is not limited to the vacuum pump. Other mechanisms that can perform this operation can also be used.
  • Embodiments of the present invention also provide a display device including a display panel, and further comprising any of the above 2D/3D switching devices.
  • the display device may be: a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigation device, and the like, or any display product or component.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

提供了一种2D/3D切换装置及显示设备，包括切换层（4），其包括柱透镜光栅以及由柱透镜光栅的柱状曲面与罩体围成的腔体；储液槽（2），用于存储透明液体，透明液体的折射率与柱透镜光栅材质的折射率相同；真空泵（5），分别与切换层中的腔体、储液槽相连接，用于将透明液体从储液槽中注入切换层中的腔体，或者将透明液体从腔体注入储液槽。相比现有技术中的2D/3D切换装置，提供的切换装置结构简单，且易于实现。

Description

2D/3D切换装置及显示设备
本发明涉及显示技术领域， 尤其涉及一种 2D/3D 切换装置及包括该 2D/3D切换装置的显示设备。 随着数字图像处理技术和设备制造水平的进步， 3D显示已经成为显示行 业的一大流行趋势。 现在的 3D显示的基本原理是 "视差产生立体"， 通过一 定的设备或技术使观看者两跟看到不同的图像， 即左眼只看到左眼图， 右眼 只看到右眼图， 左暖图和右眼图是对于某一空间景象从两个角度分别拍摄而 得到的图像， 左眼图和右眼图合称为立体图像对， 人的大脑会将两眼看到的 这两幅图融合起来， 从而产生 3D效果。
现有技术中 3D显示主要分为眼镜式和裸眼式， 其中， 眼镜式 3D显示主 要是依靠观看者佩戴 3D眼镜来获得 3D显示效果，但这严重影响了观看者的 体验感受， 限制了观看者的自由， 同时对近视或远视的观看者而言效果不佳； 裸眼式包括视差挡板式和柱透镜光栅式、 液晶光栅等。 现有技术中公开了一 种光栅 2D/3D切换装置， 其包括变形柱透镜光栅和 2D显示器， 该变形柱透 镜光栅内装有两种互不相溶的透明液体， 两种透明液体的折射率不同且密度 相近或相等， ）¾透明的弹性薄膜将两种透明液体隔开， 弹性薄膜的两个表面 都有多个透明的支撑板来支撑， 通过外力驱动液体流动和支撑板的支撑来实 现和控制弹性薄膜的形变， 该弹性薄膜具有平面形态和柱面形态两种， 通过 弹性薄膜的形态变换， 进而实现 2D/3D显示的切换。 在实际应用中发现， 这 种切换装置非常不稳定， 且其结构非常复杂， 不易实现。
(一） 要解决的技术问题
本发明要解决的技术问题是： 提供一种结构简单且易于实现的 2D/3D切 换装置。
(二） 技术方案
为解决上述技术问题， 本发明提供了一种 2D/3D切换装置， 包括： 切换层， 包括柱透镜光栅以及由柱透镜光栅的柱状曲面与罩体围成的腔
#；
储液橹， 用于存储透明液体， 所述透明液体的折射率与形成柱透镜光栅 的材料的折射率相同；
真空泵， 分别与所述切换层中的腔体、 所述储液槽相连接， 用于将所述 透明液体丛所述储液槽中注入所述切换层中的腔体， 或者将所述透明液体从 所述腔体注入所述储液槽。
可选地， 还包括真空槽， 所述真空泵通过所述真空槽与所述切换层中的 腔体连接， 所述真空槽分别与所述真空泵的抽气孔以及所述切换层中的腔体 密封连通。
可选地， 所述真空橹包括气流平缓槽、 空气压缩槽、 气动活塞以及密封 圈；
其中， 所述气流平缓槽与所述真空泵的抽气孔密封连通， 所述空气压缩 槽与所述气流平缓槽相邻， 且所述气流平缓槽与所述空气压缩槽之间设置有 连通孔； 所述密封圈) ¾于将所述真空槽与所述切换层中的腔体密封连通， 所 述气动活塞设置于所述空气压缩槽内， 根据所述空气压缩槽的气压在所述空 气压缩槽内移动。
可选地， 所述储液槽与所述腔体密封连通， 所述储液槽与所述真空泵的 排气孔连通。
可选地， 所述储液槽与所述真空泵的排气孔连接的一侧还设置有与所述 储液槽相匹配的气动活塞或者弹性薄膜。
可选地， 所述真空泵的抽气孔位置设置第一电动阀门， 所述真空泵的排 气孔位置设置第二电动阀门， 所述第一电动阀门) ¾于控制所述抽气孔的开通 与闭合， 所述第二电动阀门用于控制所述排气孔的开通与闭合。
可选地， 所述透明液体具有导电性， 所述真空槽内侧设置有第一电极和 第二电极， 所述第一电极与第一电动阀门电连接， 所述第二电极与第二电动 阀门电连接， 其中， 当所述第一电极与所述第二电极通过所述透明液体连通 i吋，所述第一电动阀门和第二电动阀门控制所述抽气孔以及所述排气孔闭合。
可选地， 所述柱透镜光極的材质为玻璃、 石英或树脂， 所述透明液体为 有机溶剂、 有机溶液或水溶液。
可选地， 所述切换层的腔体内侧涂有疏水材料。
另一方面， 本发明还提供一种显示设备， 包括显示面板， 还包括如所述 的 2D/3D切换装置。
(三） 有益效果
本发明提供一种 2D/3D切换装置和显示设备， 通过在包含有腔体的切换 层中注入或抽取与柱透镜光栅材料折射率相同的透明液体， 从而实现 2D/3D 之间的切换， 相比现有的柱状棱镜式 2D/3D可切换装置， 本发明结构筒单， 且易于实现。
图 1是本发明实施方式提供的一种 2D/3D切换装置的结构示意图； 图 2是本发明实施方式提供的切换层的截面示意图；
图 3是本发明实施方式提供的一种真空槽的结构示意图；
图 4是本发明实施方式提供的一种储液槽结构示意图；
图 5是本发明实施方式提供的一种真空槽另一结构示意图；
图 6为本发明实施方式提供的 2D/3D切换装置在 3D模式下的示意图； 图 7为本发明实施方式提供的 2D/3D切换装置在 2D模式下的示意图。 下面结合附图和实施例， 对本发明的具体实施方式作进一步详细描述。 以下实施例用于说明本发明， 但不用来限制本发明的范围。
参见图 1， 图 1是本发明实施方式提供的一种 2D/3D切换装置的结构示 意图， 该切换装置包括切换层 4、 储液槽 2以及真空泵 5。
如图 2所示， 切换层 4与显示面板 i相邻， 切换层 4包括柱透镜光欐 4b 以及由柱透镜光 » 4b的柱状曲面与罩体围成的腔体 4a。
储液槽 2用于存储透明液体， 所述透明液体的折射率与形成柱透镜光栅 真空泵 5分别与所述切换层 4中的腔体 4a以及所述储液槽 2相连接，用 于将所述透明液体从所述储液槽 2中注入所述切换层 4的腔体 4a， 或者将所 述透明液体从所述腔体 4a注入所述储液槽 2。
其中， 该切换层 4的具体结构参见图 2， 其包括柱透镜光 » 4b以及由柱 透镜光栅的柱状曲面与罩体围成的腔体 4a。 其中该切换层 4的结构具体为： 在柱透镜光栅 4b上覆盖一罩体，该罩体通过粘贴或者其他方式固定于柱透镜 光栅 4b， 该罩体与柱透镜光栅 4b的上表面之间形成腔体 4a。 该罩体可选玻 璃罩体。 其中， 该形成柱透镜光栅 4b的材料可选例如为玻璃、 石英或树脂， 当然除了列举出来的几种材料， 也可以采^与上述所例举的材料具有相同或 相似特性的其他材料。
其中， 该切换装置还包括真空槽 3， 该真空槽 3的具体结构参见图 3， 该 真空槽可以为任意形状的腔体， 在此以长方体为例， 该真空槽 3通过密封处 理与切换层 4内的腔体 ½连接， 其包括第一腔室和第二腔室， 该两个腔室分 别为气流平缓槽 3a和空气压缩槽 3b，另外还包括气动活塞 3c以及密封圈 3d。
其中， 所述气流平缓槽 3a与所述真空泵 5的抽气孔密封连通， 即所述真 空泵 5通过真空槽 3与所述切换层 4中的腔体 4a连接；
该空气压缩槽 3b与所述气流平缓槽 3a相邻，空气压缩槽 3b通过真空泵 控制气压变化来实现液体的抽注和释放；所述气流平缓槽 3a与所述空气压缩 槽 3b之间设有规则排列的连通孔，第一腔室的气压变化经过连通孔均匀传导 至第二腔室内。 与第二腔室 （空气压缩槽 3b ) 的气压对应地， 气动活塞 3c 在该第二腔室内移动， 丛而抽注或释放透明液体
其中， 储液槽 2的具体结构参见图 4， 其中， 储液槽 2用于存储透明液 体， 该透明液体的折射率与柱透镜光栅的折射率相同， 具体的， 该透明液体 例如可以为有机溶剂、有机溶液或水溶液等与柱透镜光栅折射率相同的溶液， 其中， 水溶液例如可以为饱和盐水。
该储液槽与真空泵连接， 具体的， 该储液槽的 A面与真空泵的排气孔连 接，在储液槽的 A面内侧可以设置与储液槽相匹配的气动活塞或者弹性薄膜， 当真空泵产生气压时， 将促使气动活塞运动或者弹性薄膜变形， 丛而使储液 槽中的透明液体从储液槽的 C面注入切换层 4中的腔体 4a， 可选地， 还可以 在上述的基础上将储液槽的 B面也与真空泵的排气孔相连接， 同时在储液槽 的 B面内侧设置与储液槽相匹配的气动活塞或者弹性薄膜， 真空泵通过在储 液橹 A面和 B面两面施压， 能够更迅速的将透明液体注入腔体 4a内。
真空泵 5的抽气孔位置设有第一电动阀门， 该真空泵 5的排气孔位置设 有第二电动阀门， 该第一电动阀门和第二电动阀门用于控制所述抽气孔以及 所述排气孔的开通与闭合。
具体的， 当需要 2D显示模式时， 开启真空泵 5， 打开第一电动阀门和第 二电动阀门， 通过真空泵的抽气孔对真空槽 3进行抽气， 并将抽取的气体通 过排气孔排出， 此时真空槽 3呈负压状态， 在这种负压状态下， 透明液体由 储液槽 2吸入切换层 4内的腔体 4a中， 当该腔体 4a被透明液体填满后， 将 真空泵 5关闭， 进而关闭第一电控阀门和第二电控阀门， 使真空槽形成密闭 空间， 位于腔体 4a内的透明液体处于静止状态。
下面具体描述一下 2D/3D切换装置的工作原理：
参考图 6， 在初始状态将显示面板设置为 3D工作模式， 显示图像透过切 换层时， 由于腔室内并没有填充透明液体， 只留有空气， 因此， 通过柱透镜 光栅的作用， 使得光路发生变化， 通过适当的参数设计， 从而达到 3D显示 效果。其中通过设计适当的参数具体包括设置柱透镜光栅的高度等现有技术。
参考图 7， 当需要将切换装置切换为 2D模式时， 开启真空泵， 打开第一 电动阀门和第二电动阔门， 真空槽呈负压状态， 透明液体由储液槽吸入切换 层内的腔体中， 当该腔体被透明液体填满后， 真空泵关闭， 进而关闭第一电 控阀门和第二电控阀门， 使真空槽形成密闭空间， 位于腔体内的透明液体处 于静止状态， 从而使 2D/3D切换装置保持 2D模式。
再次参考图 6， 当需要再次切换为 3D模式时， 只需要打开第一电动阀门 和第二电动阀门， 真空负压环境消失， 透明液体在重力或气压作用下丛切换 层内的腔体内流回到储液槽中， 进而使得显示面板呈现 3D显示模式。
如图 5所示， 另外一种真空槽 3的结构还包括真空槽内侧设置有第一电 极 31和第二电极 32， 其中， 第一电极 31可以为正电极， 第二电极 32可以 为负电极。 所述第一电极与第一电动阀门连接， 第二电极与第二电动阔门相 连接， 于透明液体具有导电性， 当所述第一电极与所述第二电极通过透明 液体连通时， 实现第一电动阀门和第二电动阀门控制所述抽气孔以及所述排 气孔闭合。 在这种真空槽的结构下， 具体描述一下 2D/3D切换装置的工作原理： 参考图 6， 在初始状态将显示面板设置为 3D工作模式， 显示图像透过切 换层时， 由于腔室内并没有填充透明液体， 只留有空气， 因此， 通过柱透镜 光栅的作用， 使得光路发生变化， 通过适当的参数设计， 从而达到 3D显示 效果。其中通过设计适当的参数具体包括设置柱透镜光栅的高度等现有技术。 图 6所示的柱透镜光櫥中每个柱透镜的宽度与显示面板四列像素单元的宽度 相匹配。 在 3D工作模式下， 像素 A、 像素] B、 像素 C、 像素 D分别对应显 示四幅视差图， 四个像素出射的光线经过切换层的柱透镜光栅的作用， 分别 对应视点 A '、 B C 和 D '。 观看者左眼仅看到一幅视差图 （像素 C)， 右 眼汉看到一幅视差图（像素 B)， 人的大脑会将两眼看到的这两幅视差图融合 起来， 从而产生 3D 效果。 柱透镜光 »的每个柱透镜的宽度等参数可以根据 设计需要具体调整。 例如， 柱透镜光栅的宽度可以与显示面板两列像素单元 的宽度向匹配。
参考图 7， 当需要将切换装置切换为 2D模式时， 开启真空泵， 打开第一 电动阀门和第二电动阔门， 真空槽呈负压状态， 透明液体由储液槽吸入切换 层内的腔体中， 当该腔体被透明液体填满后， 进入真空槽； 由于真空槽内设 有第一电极和第二电极， 且该透明液体具有导电性， 因此， 当真空槽中的透 明液体达到一定高度时， 使得真空槽中连接的两电极导通， 从而使第一电动 阔门和第二电动阀门关闭， 使真空槽形成密闭空间， 真空泵将从真空槽中抽 出的气体通过管路与储液槽连通， 在储液槽两端由于气压作用， 推进气动活 塞前进或使得连接口附近的弹性薄膜产生形变， 达到平衡， 位于腔体内的透 明液体处于静止状态，从而使 2D/3D切换装置保持 2D模式。在 2D工作模式 下， 观看者的双暖都可以透过切换层看到显示面板上的全部图像（即像素 、 像素 B、 像素 C、 像素 D)， 此时观看者感知到的图像为 2D图像。
再次参考图 6， 当需要使该 2D/3D切换装置再次切换为 3D模式时，只需 要开启第一电动阀门和第二电动阀门， 使得真空负压环境消失， 透明液体在 重力作 )¾下从切换层内的腔体内自然流回到储液槽， 进而使得显示面板呈现 3D显示模式。
另外， 需要说明的是， 可在切换层的腔体内侧涂覆超疏水材料， 除负压 吸引外， 不会使得透明液体因虹吸作 ffi进入腔室内。
本发明实施方式提供的 2D/3D切换装置， 包括柱透镜光栅以及由柱透镜 光栅的柱状曲面与罩体園成的腔体， 通过在腔体中注入或抽取折射率与柱透 镜光 » 料相同的透明液体， 从而实现 2D/3D之间的切换， 相比现有的柱状 棱镜式 2D/3D可切换装置， 本发明结构简单， 易于实现， 更易实现大型化， 且由于本发明无需变形柱透镜光栅、 溶液型电致变色材料、 电场驱动等复杂 系统或各种要求苛刻的溶液， 其成本更加低廉。 另外， 在储液槽和真空橹分 别设置在显示面板的竖直方向上时， 利用活塞活动及透明液体自身重力实现 透明液体填充与排除， 而不需要其他额外能量， 进而实现节能的效果。
另外， 在上述实施方式中， 采 ffi了真空泵来进行将透明液体从储液槽中 注入切换层中的腔体， 或者将透明液体从腔体注入储液槽的操作， 但是并不 限定于真空泵， 也可以采用其他能够进行该操作的机构。
本发明实施方式还提供了一种显示设备， 包括显示面板， 还包括上述任 意一种 2D/3D切换装置。 所述显示设备可以为： 液晶面板、 电子纸、 OLED 面板、 手机、 平板电脑、 电视机、 显示器、 笔记本电脑、 数码相框、 导航仪 等任何具有显示功能的产品或部件。
以上实施方式仅用于说明本发明， 而并非对本发明的限制， 有关技术领 域的普通技术人员， 在不脱离本发明的精神和范围的情况下， 还可以做出各 种变化和变型， 因此所有等同的技术方案也属于本发明的范畴， 本发明的专 利保护范围应由权利要求限定。

Claims

一种 2D/3D切换装置， 其特征在于， 包括：
切换层， 包括柱透镜光栅以及由柱透镜光栅的柱状曲面与罩体围成的腔 体；
储液槽， 用于存储透明液体， 所述透明液体的折射率与形成柱透镜光栅 的材料的折射率相同；
真空泵， 分别与所述切换层中的腔体、 所述储液槽相连接， 用于将所述 透明液体从所述储液槽中注入所述切换层中的腔体， 或者将所述透明液体从 所述腔体注入所述储液橹。
2、 根据权利要求 1所述的 2D/3D切换装置， 其特征在于， 还包括真空 槽， 所述真空泵通过所述真空槽与所述切换层中的腔体连接， 所述真空槽分 别与所述真空泵的抽气孔以及所述切换层中的腔体密封连通。
3、 根据权利要求 2所述的 2D/3D切换装置， 其特征在于， 所述真空槽 包括气流平缓槽、 空气压缩槽、 气动活塞以及密封圈；
其中， 所述气流平缓槽与所述真空泵的抽气孔密封连通， 所述空气压缩 槽与所述气流平缓槽相邻， 且所述气流平缓槽与所述空气压缩槽之间设置有 连通孔； 所述密封圈 于将所述真空槽与所述切换层中的腔体密封连通， 所 述气动活塞设置于所述空气压缩槽内， 根据所述空气压缩槽的气压在所述空 气压缩槽内移动。
4、 根据权利要求 2所述的 2D/3D切换装置， 其特征在于， 所述储液槽 与所述腔体密封连通， 所述储液槽与所述真空泵的排气孔连通。
5、 根据权利要求 4所述的 2D/3D切换装置， 其特征在于， 所述储液槽 与所述真空泵的排气孔连接的一侧还设置有与所述储液槽相匹配的气动活塞 或者弹性薄膜。
6、 根据权利要求 4所述的 2D/3D切换装置， 其特征在于， 所述真空泵 的抽气 位置设置第一电动阀门， 所述真空泵的排气孔位置设置第二电动阀 门， 所述第一电动阀门用于控制所述抽气孔的开通与闭合， 所述第二电动阀 门用于控制所述排气孔的开通与闭合。
7、 根据权利要求 6所述的 2D/3D切换装置， 其特征在于， 所述透明液 体具有导电性， 所述真空槽内侧设置有第一电极和第二电极， 所述第一电极 与第一电动阀门电连接， 所述第二电极与第二电动阀门电连接， 其中， 当所 述第一电极与所述第二电极通过所述透明液体连通时， 所述第一电动阔门和 第二电动阀门控制所述抽气孔以及所述排气孔闭合。
8、 根据权利要求〗至 7任意一项所述的 2D/3D切换装置， 其特征在于， 所述柱透镜光 »的材质为玻璃、 石英或树脂， 所述透明液体为有机溶剂、 有 机溶液或水溶液。
9、 根据权利要求 8所述的 2D/3D切换装置， 其特征在于， 所述切换层 的腔体内侧涂有疏水材料。
10、 一种显示设备， 包括显示面板， 其特征在于， 还包括如权利要求 1 9 任意一项所述的 2D/3D切换装置。
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