WO2015096474A1 - 显示装置及显示系统 - Google Patents

显示装置及显示系统 Download PDF

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Publication number
WO2015096474A1
WO2015096474A1 PCT/CN2014/083069 CN2014083069W WO2015096474A1 WO 2015096474 A1 WO2015096474 A1 WO 2015096474A1 CN 2014083069 W CN2014083069 W CN 2014083069W WO 2015096474 A1 WO2015096474 A1 WO 2015096474A1
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WO
WIPO (PCT)
Prior art keywords
display
display device
polarizing plate
liquid crystal
glasses
Prior art date
Application number
PCT/CN2014/083069
Other languages
English (en)
French (fr)
Inventor
李文波
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/422,553 priority Critical patent/US20160004089A1/en
Publication of WO2015096474A1 publication Critical patent/WO2015096474A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—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 stereoscopic type
    • G02B30/25—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 stereoscopic type using polarisation techniques
    • 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
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • 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
    • G02B30/22—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 stereoscopic type
    • G02B30/24—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 stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/1336—Illuminating devices
    • 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
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/337—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
    • 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
    • H04N13/356—Image reproducers having separate monoscopic and stereoscopic modes
    • H04N13/359—Switching between monoscopic and stereoscopic modes
    • 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
    • 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
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • 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
    • H04N13/349—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking
    • H04N13/351—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking for displaying simultaneously
    • 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
    • H04N2013/40—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene
    • H04N2013/403—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene the images being monoscopic
    • 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
    • H04N2013/40—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene
    • H04N2013/405—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene the images being stereoscopic or three dimensional

Definitions

  • At least one embodiment of the present invention is directed to a display device and display system. Background technique
  • At least one embodiment of the present invention provides a display device and a display system, which simplifies the structure of the display device, optimizes the optical design, and realizes no image information when the eye is closed, and can only see 3D or multi-view 2D display by wearing glasses. effect.
  • At least one embodiment of the present invention provides a display device including a display panel and a first polarizing plate disposed away from a display side of the display panel, and a polarizing plate is not disposed on a display side of the display panel.
  • At least one embodiment of the present invention also provides a display system including glasses and the above display device; the lens package is disposed on the spectacle lens for reading a polarizing plate of an image emitted by the display device.
  • FIG. 1 is a schematic view of a black barrier grating type display device
  • FIG. 2 is a schematic view of another black barrier grating type display device
  • FIG. 3 is a schematic diagram of a display device according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic view of a liquid crystal grating type display device
  • FIG. 5 is a schematic diagram of a display device according to Embodiment 2 of the present invention.
  • Figure 6 is a schematic view of a shutter type 3D display device
  • Figure 7 is a schematic view of a shutter type 3D glasses
  • FIG. 8 is a schematic diagram of a display device according to Embodiment 3 of the present invention. detailed description
  • the inventor of the present application has noticed that the use of the narrow viewing angle of the liquid crystal to limit the normal display area to the narrow front view area is not necessarily practical, because people who intentionally or unintentionally steal private information in the computer tend to At the rear of the user or through the invisible camera, the display information can be clearly observed at a certain angle, and the user is unaware. Therefore, whether people can see no picture information when they are in the eye, and see 3D information when wearing 3D glasses, it is a hard work direction for R&D technicians in this field to bring visual impact to everyone while protecting personal privacy.
  • a display device includes a display panel and a first polarizing plate disposed away from a display side of the display panel, and a polarizing plate is not disposed on a display side of the display panel.
  • the display device further includes a backlight, and the polarizer is disposed on a side of the display panel near the backlight.
  • a display system provided by at least one embodiment of the present invention includes glasses and a display device; a polarizing plate disposed on the spectacle lens for reading an image emitted by the display device, And the polarizing plate disposed on the spectacle lens matches the first polarizing plate of the display device.
  • FIG. 1 and 2 each show a black barrier grating type display device that realizes 3D or multi-view.
  • the lower side (the side away from the display side) of the display panel 2 is provided with a first polarizing plate 1
  • the upper side (display side) is provided with a second polarizing plate 3
  • the second polarizing plate 3 is provided with a black block.
  • a first polarizing plate 1 is disposed under the display panel 2
  • a black barrier layer 4 is disposed thereon
  • a second polarizing plate 3 is disposed on the black barrier layer 4.
  • a first embodiment of the present invention provides a display system including a display device and a target lens for use therewith.
  • the first embodiment of the present invention will display the display device as shown in FIG. 1 and FIG.
  • the upper second polarizing plate 3 is removed, and the second polarizing plate 3 is placed on the glasses.
  • the display system of the first embodiment of the present invention includes a display device (shown in Figure 3) and glasses (not shown).
  • the display device includes a display panel 2, and a first polarizing plate 1 is disposed below the display panel 2 (on a side away from the display side), and a polarizing plate is not disposed on the display side of the display panel 2.
  • the display device further includes a backlight 10, and the backlight 10 is located on a side of the display panel 2 opposite to the display side, and is disposed on a side of the display panel 2 adjacent to the backlight 10 First polarizing plate 1.
  • a grating structure is disposed above the display panel 2 (i.e., the display side of the display panel 2), for example, the grating structure is a black barrier layer 4.
  • the spectacles include a polarizing plate disposed on the ocular lens for reading an image emitted by the display device, and the polarizing plates on the two lenses of the spectacles are the same, for example, two ⁇ on the two lenses
  • the parameters, dimensions, materials and other parameters of the polarizing plates are the same; for example, the polarizing plates on the two lenses of the eyepiece have the same polarization direction, and therefore the polarization effects are the same.
  • the first polarizing plate 1 on the display device and the polarizing plate on the glasses need to be optically matched, that is, the image emitted by the display device can be read by the glasses.
  • the black barrier layer 4 is a black matrix which may be made of a resin material including a black colorant or ferrous metal chromium, or may be a printable film grating.
  • the display device of the display system of the embodiment of the present invention is provided with only the first polarizing plate 1 on the side of the display panel away from the display side, for example, on the side close to the backlight, it is impossible to read through the tree view. Take a normal 3D image, see a white light image without information; and pass a polarizer The glasses can see 3D information normally.
  • the display device of the embodiment of the present invention cancels the second polarizing plate 3 on the display device compared with the case shown in FIG. 1 and FIG. 2, so that the manufacturing process of the black barrier layer 4 on the display device is more simplified;
  • a second polarizing plate 3 is provided on the entire surface, and the second polarizing plate 3 is placed on the glasses, and the cost is also remarkably lowered.
  • the display system of the first embodiment can realize special function display, that is, the eye information can not be seen by the eye, and the 3D image information can be seen only by wearing the glasses with the polarizing plate, which makes the display system suitable for use.
  • Special function display that is, the eye information can not be seen by the eye, and the 3D image information can be seen only by wearing the glasses with the polarizing plate, which makes the display system suitable for use.
  • the display system of the first embodiment is also suitable for multi-view 2D display. It is also possible to perform spectroscopic processing using a grating and by using glasses provided with polarizing plates, the viewer can see different 2D images at different angles when wearing glasses, and only white images can be seen in the eyes. That is, the 2D image of the multi-view cannot be read when seeing, and the white light image without information is seen; and the 2D image information of the multi-view can be normally seen by the glasses provided with the polarizing plate.
  • the first polarizing plate 1 is disposed only below the display panel 2, the normal 2D display cannot be performed; only the white image can be seen when the tree is viewed.
  • 3D display or multi-view 2D display it is necessary to use the eyepiece mirror in the first embodiment to satisfy the customer's viewing of the 3D image by matching the first polarizing plate 1 on the display device with the polarizing plate on the glasses. The need for multi-view 2D images.
  • Fig. 4 shows a display device for realizing 3D or multi-view using a liquid crystal grating, and the display device can realize switching of 2D/3D.
  • the liquid crystal grating is a twisted nematic liquid crystal display device of a normally white mode.
  • the lower side of the display panel 2 (the side away from the display side) is provided with a first polarizing plate 1, and the upper side (display side) is provided with a third polarizing plate 6, above which is a liquid crystal grating 5, and the liquid crystal grating 5 is provided with a second polarization Slice 3.
  • a display device allows anyone to see image information without any protection from privacy.
  • the display system provided by the second embodiment of the present invention includes a display device and a mesh lens used in conjunction with the same.
  • the liquid crystal grating 5 of the display device shown in FIG. The upper second polarizing plate 3 is removed, and the second polarizing plate 3 is placed on the glasses.
  • the display system of the second embodiment of the present invention includes a display device (as shown in FIG. 5) and glasses (not shown); the display device includes a display panel 2, below the display panel 2 (away from the display)
  • the first polarizing plate 1 is provided on one side of the side, and the polarizing plate is not provided on the display side of the display panel 2.
  • the display device further includes a backlight 10, and the backlight 10 is located on a side of the display panel 2 opposite to the display side, and is disposed on a side of the display panel 2 adjacent to the backlight 10
  • the first polarizing plate 1 is provided with a third polarizing plate 6 above the display panel 2.
  • the upper side of the third polarizing plate 6 i.e., the display side of the display panel 2 is provided with a grating structure.
  • the grating structure is a liquid crystal grating 5.
  • the lens package is disposed on the spectacle lens for reading a polarizing plate of an image emitted by the display device, and the polarizing plates on the two lenses of the lens are the same, for example, two polarizations on the two lenses
  • the parameters of the structure, size, and material of the sheet are the same; for example, the polarizing plates on the two lenses of the glasses have the same polarization direction, and therefore, the polarization effects are the same.
  • the first polarizing plate 1 on the display device and the polarizing plate on the glasses need to be optically matched, that is, the image emitted by the display device can be read by the glasses.
  • the polarizing plate is not disposed above the liquid crystal grating 5 of the display device, for the 3D image or the multi-view 2D image, the liquid crystal grating 5 does not function as a grating.
  • the light splitting action, and the liquid crystal grating 5 partially deflects the light coming out of the display panel 2, causing the eyes to view the display screen, and the data information is disordered, and a clear and effective image is not seen.
  • the polarizing plate provided on the glasses filters out unnecessary light, thereby realizing the light splitting function of the liquid crystal grating, and can see a clear 3D image or a multi-view 2D. image.
  • the liquid crystal grating In the conventional 2D display, the liquid crystal grating generally uses a Twisted Nematic (TN) liquid crystal device in a normally white mode, so that in the case of 2D display, it is possible to display a voltage without significantly applying a voltage to the liquid crystal grating. Reduce power consumption.
  • TN Twisted Nematic
  • the liquid crystal grating 5 can perform normal 2D display without applying voltage, whether it is a normally white mode TN device or a normally black mode VA, IPS or SADS, thereby reducing power consumption during 2D display and expanding liquid crystal.
  • the display system of the second embodiment of the present invention can be viewed through a tree when the normal 2D display is used, and the present embodiment is required when the 3D display or the multi-view 2D display is required.
  • the second mirror which greatly meets the different needs of different customers.
  • Embodiment 3 Generally, the shutter type 3D is displayed in such a manner that, at the first moment, the images of the display panel are all input into the left eye image, and the light can pass through the left lens of the 3D glasses and is blocked by the right lens; at the second moment, the display panel The images are all input into the right eye image, and the light passes through the right lens of the 3D glasses and is blocked by the left lens.
  • a black frame is inserted in the middle of the left and right eye image switching, thereby preventing the interference of the left and right eye images due to the visual persistence effect of the human eye, and affecting the 3D display effect.
  • Fig. 6 shows a shutter type 3D display device.
  • FIG. 7 shows a use with the shutter type 3D display device
  • the shutter type 3D eyepiece includes a liquid crystal shutter layer 8, a fourth polarizing plate 7 is disposed below the liquid crystal shutter layer 8, and a fifth polarizing plate 9 is disposed above.
  • the polarization direction of the light from the display panel 2 of the display device does not change, and the 3D display is realized by the selective switch of the left and right 3D glasses of the liquid crystal shutter at different times.
  • such a display device and the 3D glasses used therewith can also enable image information to be seen by anyone with corresponding 3D glasses without any privacy protection.
  • the display system of the third embodiment of the present invention includes a display device and glasses.
  • the display device removes the polarizing plate on the display side of the display panel without adding any other components.
  • the display device according to Embodiment 3 of the present invention may be a liquid crystal shutter display device, which may include a display panel 2, and a first polarizing plate 1 is disposed under the display panel 2 (on a side away from the display side), and A polarizing plate is not disposed on the display side of the display panel 2.
  • the display device further includes a backlight 10, and the backlight 10 is located on a side of the display panel 2 opposite to the display side, and is disposed on a side of the display panel 2 adjacent to the backlight 10 First polarizing plate 1.
  • the eyepiece mirror of the third embodiment of the present invention may be a liquid crystal shutter type 3D eyepiece mirror, which may include a liquid crystal shutter layer 8 for identifying an image emitted by the display device, and is provided on both sides of the liquid crystal shutter layer 8.
  • a fourth polarizing plate 7 is provided below the liquid crystal shutter layer 8, and a fifth polarizing plate 9 is provided above.
  • the left and right 3D spectacles of the liquid crystal shutter type 3D glasses are kept in a light-on state.
  • normal operation can be performed without applying voltage to both lenses.
  • 2D display for the display system of the normally black mode, when the liquid crystal shutter 2D is required to be displayed, the liquid crystal of the fourth polarizing plate 7 disposed only under the liquid crystal shutter layer 8 may be used.
  • the door type 3D glasses can normally view 2D images.
  • the lenses of the left and right liquid crystal shutter type 3D glasses need to maintain the same state, the odd frame input one image data stream A, the even frame input another image data stream B, if the liquid crystal shutter type 3D glasses are in odd number
  • the liquid crystal shutter type 3D glasses can only see the image data stream A; if the liquid crystal shutter type 3D glasses are in the off state in the odd frame, and the even frame is in the open state State, you can see the 2D image data stream B.
  • the display system of the embodiment of the invention can realize anti-spy and 3D display of the display device.
  • the embodiment of the invention provides a anti-spy solution for the black barrier grating, the liquid crystal grating and the liquid crystal shutter 3D glasses of the parallax barrier method.
  • no image information is realized when the eye is closed.
  • the 3D glasses are worn, the 3D or multi-view 2D display effect can be seen.
  • only the polarizing plate on the display side of the display panel can be removed, and the original 3D can be realized without additional accessories.
  • Display or multi-view 2D display effects simplify process, reduce cost, and make display systems suitable for military, commercial, and other secure display applications.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Liquid Crystal (AREA)

Abstract

一种显示装置及显示系统，该显示系统的显示装置包括显示面板（2）和远离所述显示面板（2）的显示侧设置的第一偏振片（1），所述显示面板（2）的显示侧未设置偏振片；眼镜包括设置于眼镜镜片上的用于读取显示装置发射出的图像的偏振片。这样简化了显示装置的结构、优化了光学设计，实现了裸眼时无画面信息，只有配戴眼镜才能看到3D或多视图2D显示效果。

Description

显示装置及显示系统 技术领域
本发明至少一个实施例涉及一种显示装置及显示系统。 背景技术
液晶显示领域的技术革新离不开人们对生活中各式各样的需求的满足以 及研发者对产品永不满足的颠覆性创造。 产品本身的缺陷会促使科研工作者 对产品进行不断的改良， 例如液晶本身存在的视角问题， 带来了高级超维场 转换（Advanced Super Dimension Switch, 英文缩写为 ADS )技术、 平面转 换（ In Plane Switching, 英文缩写为 IPS )技术、 多畴垂直取向 ( Multi-domain Vertical Alignment,英文缩写为 MVA )技术等多种广视角技术的应用与推广； 而利用液晶的窄视角的特点， 可以将正常显示区域仅局限于较窄的正面视角 区域， 而侧面显示区域显示的信息则从左右两边无法看清或看到， 这样可起 到一定的保护隐私的作用。 发明内容
本发明至少一个实施例提供一种显示装置及显示系统， 这样简化了显示 装置的结构、 优化了光学设计， 实现了棵眼时无画面信息， 只有配戴眼镜才 能看到 3D或多视图 2D显示效果。
本发明至少一个实施例提供了一种显示装置， 该显示装置包括显示面板 和远离所述显示面板的显示侧设置的第一偏振片， 所述显示面板的显示侧未 设置偏振片。
本发明至少一个实施例还提供了一种显示系统， 该显示系统包括眼镜和 上述显示装置； 所述眼镜包 ϋ置于眼镜镜片上的用于读取显示装置发射出 的图像的偏振片。 附图说明
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例的附图作 简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例， 而非对本发明的限制。
图 1是一种黑挡层光栅类显示装置的示意图；
图 2是另一黑挡层光栅类显示装置的示意图；
图 3是本发明实施例一提供的显示装置的示意图；
图 4是一种液晶光栅类显示装置的示意图；
图 5是本发明实施例二提供的显示装置的示意图；
图 6是一种快门式 3D显示装置的示意图；
图 7是一种快门式 3D眼镜的示意图；
图 8是本发明实施例三提供的显示装置的示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发 明实施例的附图， 对本发明实施例的技术方案进行清楚、 完整地描述。显然， 所描述的实施例是本发明的一部分实施例， 而不是全部的实施例。 基于所描 述的本发明的实施例， 本领域普通技术人员在无需创造性劳动的前提下所获 得的所有其他实施例， 都属于本发明保护的范围。
本申请的发明人注意到， 利用液晶的窄视角的特点， 将正常显示区域仅 局限于较窄的正面视角区域的方式不一定真正能实用， 因为有意或无意偷规 电脑中隐私信息的人往往在使用者的后方或通过隐形摄像头拍摄， 其在一定 角度可以较清晰地观察到显示信息， 而使用者还一无所知。 因此， 能否让人 在棵眼时看到无画面信息，在戴 3D眼镜时看到 3D信息，在给大家带来视觉 冲击的同时保护个人隐私已经成为本领域研发技术人员的努力方向。
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。
本发明至少一个实施例提供的显示装置包括显示面板和远离所述显示面 板的显示侧设置的第一偏振片， 所述显示面板的显示侧未设置偏振片。 在一 个示例中， 所述显示装置还包括背光源， 所述偏振片设置于所述显示面板靠 近背光源的一侧。 本发明至少一个实施例提供的显示系统包括眼镜和显示装 置；眼镜包 ϋ置于眼镜镜片上的用于读取显示装置发射出的图像的偏振片， 并且设置于眼镜镜片上的偏振片与显示装置的第一偏振片相匹配。
下面结合具体实施例对本发明进行更加详细的说明。
实施例一
图 1和 2各示出了一种黑挡层光栅类实现 3D或多视的显示装置。如图 1 所示， 显示面板 2的下方（远离显示侧的一侧）设有第一偏振片 1， 上方（显 示侧）设有第二偏振片 3， 在第二偏振片 3上设置黑挡层 4; 如图 2所示， 显 示面板 2的下方设有第一偏振片 1，上方设有黑挡层 4，在黑挡层 4上设置有 第二偏振片 3。 这样的显示装置使得任何人都能看到图像信息， 没有任何保 护隐私的作用。
如图 3所示， 本发明实施例一提供一种显示系统， 该显示系统包括显示 装置和与其相配合使用的目艮镜， 本发明实施例一将如图 1和图 2所示的显示 装置上的第二偏振片 3去掉，将第二偏振片 3设置在眼镜上。在一个示例中， 本发明实施例一的显示系统包括显示装置（如图 3所示）和眼镜（图中未示 出） 。 该显示装置包括显示面板 2， 在显示面板 2的下方 （远离显示侧的一 侧）设有第一偏振片 1， 并且所述显示面板 2的显示侧未设置偏振片。 在一 个示例中， 所述显示装置还包括背光源 10， 所述背光源 10位于显示面板 2 的与所述显示侧相对的一侧，在所述显示面板 2靠近背光源 10的一侧设有第 一偏振片 1。 在一个示例中， 在显示面板 2的上方（即显示面板 2的显示侧） 设置有光栅结构， 例如， 该光栅结构为黑挡层 4。 所述眼镜包括设置于目艮镜 镜片上的用于读取显示装置发射出的图像的偏振片， 且所述眼镜的两个镜片 上的偏振片相同， 例如， ^殳在两镜片上的两个偏振片的结构、 尺寸、 材质 等参数均相同； 例如， 目艮镜的两个镜片上的偏振片的偏振方向相同， 因此， 其所产生的偏振效果也均相同。
在本发明实施例中， 显示装置上的第一偏振片 1和眼镜上的偏振片需光 学匹配， 即通过眼镜可以读取显示装置发射出的图像。
在一个示例中， 所述黑挡层 4为黑色矩阵， 该黑色矩阵可以由包括黑色 着色剂的树脂材料或黑色金属铬制成， 或者可以为可打印的菲林光栅。
由于本发明实施例的显示系统的显示装置仅在显示面板的远离显示侧的 一侧， 例如靠近背光源的一侧， 设有第一偏振片 1， 因此， 通过棵目^见看时 无法读取正常的 3D图像， 看到的是无信息的白光图像； 而通过设有偏振片 的眼镜则能正常看到 3D信息。
本发明实施例的显示装置与图 1和图 2所示的情形相比取消了显示装置 上的第二偏振片 3， 使得显示装置上的黑挡层 4的制作工艺更加简化； 同时 由于少了一层整面的第二偏振片 3， 而将该第二偏振片 3设置于眼镜上， 成 本也明显降低。
此外， 本实施例一的显示系统能实现特殊功能显示， 也就是使棵眼者看 不到图像信息， 只有戴上设有偏振片的眼镜才能看到 3D图像信息， 这使得 该显示系统适用于军事、 商业等保密应用， 满足人们的不同场合需求。
事实上， 本实施例一中显示系统同样适合于多视点 2D显示。 其也可以 利用光栅进行分光处理并通过使用设有偏振片的眼镜， 使观看者在配戴眼镜 时可以在不同角度看到不同的 2D图像， 而棵眼时只能看到白色图像。 即棵 目 ^见看时无法读取多视点的 2D图像， 看到的是无信息的白光图像； 而通过 设有偏振片的眼镜则能正常看到多视点的 2D图像信息。
由上可知， 本发明实施例一中的显示系统， 由于仅在显示面板 2的下方 设有第一偏振片 1，其无法进行正常的 2D显示；棵目 ^见看时只能看到白色图 像； 当进行 3D显示或多视点 2D显示时， 需要使用本实施例一中的目艮镜， 通 过显示装置上的第一偏振片 1和眼镜上的偏振片相匹配，满足了客户观看 3D 图像和多视点 2D图像的需求。
实施例二
图 4示出了一种利用液晶光栅实现 3D或多视的显示装置， 并且该显示 装置能实现 2D/3D的切换。 液晶光栅为常白模式的扭曲向列液晶显示器件。 显示面板 2的下方（远离显示侧的一侧）设有第一偏振片 1， 上方（显示侧） 设有第三偏振片 6， 之上为液晶光栅 5， 液晶光栅 5上设置有第二偏振片 3。 同样， 这样的显示装置使得任何人都能看到图像信息， 没有任何保护隐私的 作用。
如图 5所示， 本发明实施例二提供的显示系统， 该显示系统包括显示装 置和与其相配合使用的目艮镜， 本发明实施例二将如图 4所示的显示装置的液 晶光栅 5上的第二偏振片 3去掉， 将第二偏振片 3设置于眼镜上。 在一个示 例中， 本发明实施例二的显示系统包括显示装置（如图 5所示）和眼镜（图 中未示出） ； 该显示装置包括显示面板 2， 在显示面板 2的下方（远离显示 侧的一侧）设有第一偏振片 1， 并且所述显示面板 2的显示侧未设置偏振片。 在一个示例中， 所述显示装置还包括背光源 10， 所述背光源 10位于显示面 板 2的与所述显示侧相对的一侧，在所述显示面板 2靠近背光源 10的一侧设 有第一偏振片 1，在显示面板 2的上方设有第三偏振片 6，第三偏振片 6的上 方（即显示面板 2的显示侧）设置光栅结构， 例如， 该光栅结构为液晶光栅 5。所述眼镜包 ϋ置于眼镜镜片上的用于读取显示装置发射出的图像的偏振 片， 且所述眼镜的两个镜片上的偏振片相同， 例如， 殳在两镜片上的两个 偏振片的结构、 尺寸、 材质等参数均相同； 例如， 眼镜的两个镜片上的偏振 片的偏振方向相同， 因此， 其所产生的偏振效果也均相同。
在本发明实施例中， 显示装置上的第一偏振片 1和眼镜上的偏振片需光 学匹配， 即通过眼镜可以读取显示装置发射出的图像。
3D或多视点 2D显示时， 由于该显示装置的液晶光栅 5的上方没有设置 偏振片， 因此， 对于 3D图或多视点 2D图， 棵目 ^见看时， 由于该液晶光栅 5 没有起到光栅分光作用， 而液晶光栅 5对从显示面板 2出来的光进行了部分 偏转， 导致棵眼观看显示屏时， 为杂乱无章的数据信息， 看不到清晰有效的 图像。 当使用与该显示装置相配合的目艮镜时， 该眼镜上设有的偏振片会过滤 掉不需要的光线， 从而实现了液晶光栅的分光功能， 可以看到清晰的 3D图 像或多视点 2D图像。
而在常规的 2D 显示时， 液晶光栅一般釆用常白模式的扭曲向列显示 ( Twisted Nematic, 英文简称为 TN )液晶器件， 如此， 在 2D显示时， 无需 对液晶光栅施加电压， 就可以显著降低功耗。 而对于本发明实施例二的显示 装置， 由于去掉了液晶光栅 5上方的偏振片， 只要对显示面板 2输入了 2D 信号， 无论是否对液晶光栅 5施加电压， 从显示面板 2射出的光线不会被屏 蔽， 均能进行正常的棵眼 2D显示。 因此， 液晶光栅 5无论是常白模式的 TN 器件还是常黑模式的 VA、 IPS或 SADS等器件均可不用施加电压，进行正常 的 2D显示， 从而降低了 2D显示时的功耗， 扩大了液晶光栅 4的使用类型。
由上可知， 本发明实施例二的显示系统在正常的 2D显示时， 无需使用 目艮镜， 可以通过棵目 ^见看； 当需要进行 3D显示或多视点 2D显示时， 需要使 用本实施例二中的目艮镜， 这样极大地满足了不同客户的不同需求。
实施例三 通常， 快门式 3D的显示方式为， 在第一时刻， 显示面板的图像全部输 入左眼图像， 光线能透过 3D眼镜的左镜片， 而被其右镜片挡住； 在第二时 刻， 显示面板的图像全部输入右眼图像， 光线能透过 3D眼镜的右镜片， 而 被其左镜片挡住。 同时为改善 3D显示效果， 会在左右眼图像切换的中间插 入黑帧， 防止由于人眼的视觉暂留效应对左右眼图像的干扰， 影响 3D显示 效果。 图 6示出了一种快门式 3D显示装置。 显示面板 2的下方（远离显示 侧的一侧 )设有第一偏振片 1， 上方（显示侧 )设有第二偏振片 3; 图 7示出 了一种与快门式 3D显示装置相配合使用的快门式 3D目艮镜，其包括液晶快门 层 8， 在液晶快门层 8的下方设有第四偏振片 7， 上方设有第五偏振片 9。 如 图 6和图 7所示的快门显示系统的常用结构， 从显示装置的显示面板 2出来 的光的偏振方向不变， 通过不同时刻液晶快门左右 3D眼镜的选择性开关实 现 3D显示。但是，这样的显示装置和与其相配合使用的 3D眼镜也能使得带 有相应 3D眼镜的任何人都能看到图像信息， 没有任何保护隐私的作用。
如图 8所示， 本发明实施例三的显示系统包括显示装置和眼镜。 该显示 装置去掉了位于显示面板的显示侧的偏振片， 不需要添置其它任何器件。 在 一个示例中， 本发明实施例三的显示装置可以为液晶快门显示装置， 其可以 包括显示面板 2， 在显示面板 2的下方（远离显示侧的一侧）设有第一偏振 片 1， 并且所述显示面板 2的显示侧未设置偏振片。 在一个示例中， 所述显 示装置还包括背光源 10， 所述背光源 10位于显示面板 2的与所述显示侧相 对的一侧， 在所述显示面板 2靠近背光源 10的一侧设有第一偏振片 1。 本发 明实施例三的目艮镜可以为液晶快门式 3D目艮镜， 其可以包括用于识别所述显 示装置发射出的图像的液晶快门层 8，在液晶快门层 8的两侧均设有偏振片， 例如， 在液晶快门层 8的下方设有第四偏振片 7， 上方设有第五偏振片 9。
3D显示时， 需保证液晶快门式 3D目艮镜的第四偏振片 7与液晶快门显示 装置的第一偏振片 1正交， 就可实现正常 3D显示。
在 2D显示时， 只需将液晶快门式 3D眼镜的左右两个 3D目艮镜镜片均保 持光线开通状态， 例如， 对于常白模式的显示系统， 对两个镜片均不用施加 电压就能实现正常的 2D显示； 对于常黑模式的显示系统， 需要对液晶快门 2D显示时，也可以釆用只在液晶快门层 8的下方设置第四偏振片 7的液晶快 门式 3D眼镜即能正常观看 2D图像。
多视 2D图显示时，左右两个液晶快门式 3D眼镜的镜片需保持同样的状 态， 奇数帧输入一个图像数据流 A， 偶数帧输入另外一个图像数据流 B， 若 液晶快门式 3D眼镜在奇数帧时处于开通状态， 而偶数帧时处于关闭状态， 则该液晶快门式 3D眼镜只能看到图像数据流 A;若液晶快门式 3D眼镜在奇 数帧时处于关闭状态， 而偶数帧时处于开通状态， 则能看到 2D图像数据流 B。
由上可知， 在不使用本发明实施例三的液晶快门式 3D眼镜观看显示面 板时， 无论是 2D显示、 多视 2D显示还是 3D显示， 只能看到无信息的白色 图像， 这样起到了防窥的作用， 保护了使用者的隐私。
综上所述， 本发明实施例的显示系统， 可实现显示装置的防窥及 3D显 示。 本发明实施例针对视差挡板法的黑挡层光栅、 液晶光栅以及液晶快门式 3D眼镜提出了防窥解决方案， 通过简化显示装置的结构、优化光学设计， 实 现了棵眼时无画面信息，配戴 3D眼镜时才能看到 3D或多视图 2D显示效果； 本发明实施例对于液晶快门显示， 只需去掉显示面板的显示侧的偏振片， 无 需额外增加其它配件， 即可实现原有的 3D显示或多视图 2D显示效果，这样 简化了工艺， 降低了成本， 并且使得显示系统适用于军事、 商业等保密显示 应用。
以上所述仅是本发明的几种优选实施方式， 应当指出， 对于本技术领域 的普通技术人员来说， 在不脱离本发明技术原理的前提下， 还可以做出若干 改进和变型， 这些改进和变型也应视为本发明的保护范围。
本申请要求于 2013年 12月 27日递交的中国专利申请第 201310741825.4 号的优先权， 在此全文引用上述中国专利申请公开的内容以作为本申请的一 部分。

Claims

权利要求书
1、一种显示装置， 包括显示面板和远离所述显示面板的显示侧设置的第 一偏振片， 其中， 所述显示面板的显示侧未设置偏振片。
2、根据权利要求 1所述的显示装置，还包括位于显示面板的与所述显示 侧相对的一侧的背光源， 其中， 所述第一偏振片设置于所述显示面板靠近背 光源的一侧。
3、根据权利要求 1或 2所述的显示装置， 还包括光栅结构， 其中， 所述 光栅结构位于所述显示面板的显示侧。
4、根据权利要求 3所述的显示装置， 其中， 所述光栅结构为黑挡层光栅 或液晶光栅。
5、根据权利要求 4所述的显示装置， 还包括第三偏振片， 其中， 当所述 光栅结构为液晶光栅时， 所述第三偏振片位于所述液晶光栅与所述显示面板 之间。
6、 一种显示系统， 包括眼镜和如权利要求 1-4任一项所述的显示装置， 其中， 所述眼镜包 ϋ置于眼镜镜片上的用于读取所述显示装置发射出的图 像的偏振片。
7、根据权利要求 6所述的显示系统， 其中， 所述设置于眼镜镜片上的偏 振片与所述显示装置的所述第一偏振片相匹配。
8、根据权利要求 6或 7所述的显示系统， 其中， 所述眼镜的两个镜片上 的偏振片的偏振方向相同。
9、 根据权利要求 6-8任一项所述的显示系统， 其中， 所述眼镜还包括液 晶快门层， 所述液晶快门层的两侧均设有偏振片， 所述液晶快门层用于识别 所述显示装置发射出的图像。
PCT/CN2014/083069 2013-12-27 2014-07-25 显示装置及显示系统 WO2015096474A1 (zh)

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