WO2018049814A1 - 裸眼三维显示装置 - Google Patents

裸眼三维显示装置 Download PDF

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Publication number
WO2018049814A1
WO2018049814A1 PCT/CN2017/080028 CN2017080028W WO2018049814A1 WO 2018049814 A1 WO2018049814 A1 WO 2018049814A1 CN 2017080028 W CN2017080028 W CN 2017080028W WO 2018049814 A1 WO2018049814 A1 WO 2018049814A1
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WIPO (PCT)
Prior art keywords
substrate
electrode
dimensional display
display device
liquid crystal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/080028
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English (en)
French (fr)
Inventor
张贵玉
胡明
张明
王静
许邹明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Application filed by BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US15/564,360 priority Critical patent/US10534190B2/en
Publication of WO2018049814A1 publication Critical patent/WO2018049814A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • G—PHYSICS
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    • 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
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    • 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
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    • 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
    • G02B30/30—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 parallax barriers
    • G02B30/31—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 parallax barriers involving active parallax barriers
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    • 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 
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    • 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
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    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
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    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
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    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • 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
    • G02F1/133354—Arrangements for aligning or assembling substrates
    • 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
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells

Definitions

  • At least one embodiment of the present disclosure is directed to a naked eye three-dimensional display device.
  • 3D display technology can make the picture become stereoscopic.
  • the principle is to use the left and right eyes of the human eye to accept different pictures.
  • the brain re-emerges the image information and reconstructs the image of the stereoscopic display effect.
  • At least one embodiment of the present disclosure relates to a naked-eye three-dimensional display device.
  • the naked-eye three-dimensional display device can reduce the amount of use of one substrate, simplify the flow, and eliminate the need for a bonding process, improve yield, and reduce high-precision equipment investment. Since the amount of use of one substrate is reduced, the placement height is reduced, and the viewing distance can be reduced.
  • the naked eye three-dimensional display device includes: a two-dimensional display panel, the two-dimensional display panel includes a first substrate, a second substrate, and a first liquid crystal layer disposed between the first substrate and the second substrate; a substrate disposed opposite to the second substrate on a side of the second substrate away from the first substrate; a second liquid crystal layer disposed between the second substrate and the third substrate; A first electrode and a second electrode are disposed between the second substrate and the third substrate, and the first electrode and the second electrode are configured to apply an electric field to the liquid crystal in the second liquid crystal layer to form a spectroscopic device For three-dimensional display.
  • Figure 1 is a schematic view of a liquid crystal grating
  • FIG. 2 is a schematic diagram of a naked eye three-dimensional display device
  • FIG. 3 is a schematic view showing a height of a naked eye three-dimensional display device
  • FIG. 4 is a schematic diagram of a naked eye three-dimensional display device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a naked eye three-dimensional display device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a naked eye three-dimensional display device according to an embodiment of the present disclosure.
  • 01-two-dimensional display panel 011-lower substrate; 012-upper substrate; 013-liquid crystal layer; 015-upper polarizer; 016-lower polarizer; 017-frame sealant; 02-liquid crystal grating; 020-frame sealant ; 021 - upper substrate; 022 - liquid crystal layer; 023 - strip electrode; 024 - planar electrode; 025 - upper polarizing plate; 026 - touch layer; 027 - insulating layer; 028 - lower substrate; 029 - lower polarizing plate ;03-Optical tape (OCR) / optically clear resin (OCA); 04-placement height; 100-two-dimensional display panel; 101-first substrate; 102-second substrate; 103-first liquid crystal layer; 104-pair Position mark; 105-polarizing layer; 106-first polarizing plate; 107-first sealing frame glue; 200-splitting device; 201-third substrate; 202-second liquid crystal layer; 203-first electrode; Two electrodes;
  • the liquid crystal grating is generally composed of an upper polarizing plate 025, a lower polarizing plate 029, an upper substrate 021, a lower substrate 028, and a liquid crystal layer 022 between the upper and lower substrates, and the upper and lower substrates respectively have strip electrodes and a planar shape. electrode.
  • the liquid crystal molecules in the positive electrode area of the strip electrode and the planar electrode are deflected, the liquid crystal molecules are arranged on the vertical substrate, and the light cannot penetrate, forming a dark region (black region); the liquid crystal molecules without the strip electrode region are not affected by the electric field Without deflection, the light penetrates the cell (Cell) to form a bright area, so that a plurality of strips of light and dark stripes can be formed.
  • Cell cell
  • a naked-eye 3D touch display panel with a touch function needs to be formed by laminating a liquid crystal grating and a two-dimensional (2D) display panel, as shown in FIG. 2 .
  • the method for fabricating the liquid crystal grating can be as follows: a touch layer 026, an insulating layer 027, a planar electrode 024 are formed on the upper substrate 021, a strip electrode 023 is formed on the lower substrate 028, and finally the upper substrate 021 and the lower substrate 028 are paired.
  • the liquid crystal layer 022 is injected and then sealed by the sealant 020 to form a liquid crystal grating 02 having a touch function.
  • the 2D display panel 01 includes an upper substrate 012 and a lower substrate 011, and is located between the upper substrate 012 and the lower substrate 011.
  • the liquid crystal grating 02 and the 2D display panel 01 can be bonded together by optical tape (OCR) / optical transparent resin (OCA) 03 to form a final naked-eye 3D touch display module.
  • OCR optical tape
  • OCA optical transparent resin
  • a conventional active naked-eye 3D display module requires a liquid crystal grating 02 and a 2D display panel 01 to be attached by OCR/OCA 03, as shown in FIG.
  • the following requirements are required: (1) The liquid crystal grating 02 usually requires two layers of substrates, and the process flow is complicated; (2) in order to obtain the naked-eye 3D display effect, the liquid crystal grating 02 and the 2D display panel 01 are still required to be attached; (3) The matching alignment accuracy is required to be ⁇ 5 ⁇ m, which is quite high for the bonding equipment and the mass production efficiency is not high; (4) Since the 3D display module requires 4 substrates, in order to ensure the 3D display effect, the placement height 04 is certain. Requirements (generally, the closer the viewing distance is, the smaller the placement height is).
  • the placement height refers to, for example, the thickness of the lower substrate 028 of the liquid crystal grating 02, the thickness of the upper substrate 012 of the 2D display panel 01, and the thickness of the layer between the lower substrate 082 of the liquid crystal grating 02 and the upper substrate 012 of the 2D display panel 01. sum.
  • the naked eye three-dimensional display device includes a two-dimensional display panel, a third substrate, a second liquid crystal layer, a first electrode, and a second electrode
  • the two-dimensional display panel includes a first substrate, a second substrate, and the first substrate and the second substrate a first liquid crystal layer
  • a third substrate is disposed opposite to the second substrate on a side of the second substrate away from the first substrate
  • a second liquid crystal layer is disposed between the second substrate and the third substrate
  • the second substrate is adjacent to a first electrode is disposed on one side of the third substrate, and a second electrode is disposed on a side of the third substrate adjacent to the second substrate, the first electrode and the second electrode being configured to apply an electric field to the liquid crystal in the second liquid crystal layer to form a light splitting device For three-dimensional display.
  • the naked eye three-dimensional display device provided by at least one embodiment of the present disclosure can reduce the usage of one substrate, simplify the process, and eliminate the need for a bonding process, improve the yield, and reduce the input of high precision equipment. Since the amount of use of one substrate is reduced, the placement height is reduced, the viewing distance can be reduced, and a better three-dimensional display effect can be obtained within a smaller viewing distance, and the distance of use of the mobile phone can be achieved.
  • the naked eye three-dimensional display device includes a two-dimensional display panel 100.
  • the two-dimensional display panel 100 includes a first substrate 101, a second substrate 102, and a first liquid crystal layer 103 disposed between the first substrate 101 and the second substrate 102.
  • the naked eye three-dimensional display device further includes a third substrate 201, a second liquid crystal layer 202, a first electrode 203, and a second electrode 204.
  • the third substrate 201 is disposed opposite to the second substrate 102 on a side of the second substrate 102 away from the first substrate 101.
  • the second liquid crystal layer 202 is disposed between the second substrate 102 and the third substrate 201.
  • a first electrode 203 is disposed on a side of the second substrate 102 adjacent to the third substrate 201, and a second electrode 204 is disposed on a side of the third substrate 201 adjacent to the second substrate 102.
  • the first electrode 203 and the second electrode 204 are configured to apply an electric field to the liquid crystal in the second liquid crystal layer 202 such that the liquid crystal in the second liquid crystal layer 202 is rotated to form a spectroscopic device (liquid crystal spectroscopic device) 200 for 3D display.
  • one set of electrodes in the spectroscopic device 200 is disposed on a side of the second substrate 102 away from the first substrate 101, and the two-dimensional display panel 100 and the spectroscopic device 200 share the second substrate 102. That is, the second substrate 102 serves as the upper substrate of the two-dimensional display panel 100 and also serves as the lower substrate of the spectroscopic device 200.
  • the naked-eye three-dimensional display device includes only three substrates, and the conventional naked-eye three-dimensional display device requires four substrates. Compared with the reduction of one substrate, the placement height is reduced, and the viewing distance can be reduced. For example, the viewing distance can be shortened from 550mm to 150mm, reaching the distance used by the mobile phone. Further, the process of bonding the spectroscopic device 200 to the two-dimensional display panel 100 is omitted, the flow is simplified, the yield is improved, and the investment of high-precision equipment is reduced.
  • the material of the first electrode 203 and the second electrode 204 may be a transparent conductive material, for example, may include any one of aluminum-doped zinc oxide, indium tin oxide or indium zinc oxide, and the embodiment of the present disclosure does not impose any restrictions thereon. .
  • At least one of the first electrode 203 and the second electrode 204 includes a plurality of strip electrodes.
  • one of the first electrode 203 and the second electrode 204 includes a plurality of strip electrodes, and the other is a planar electrode, or the first electrode 203 and the second electrode 204 each include a plurality of strip electrodes.
  • the plurality of strip electrodes are parallel to each other.
  • the liquid crystal molecules of the strip electrode and the planar electrode facing the region or the two strip electrodes are deflected, the light cannot penetrate, forming a dark region (black region); the liquid crystal molecules without the strip electrode region Without deflection, the light penetrates the liquid crystal cell to form a bright area, thus forming strips of light and dark stripes, which can form a specific occlusion relationship with sub-pixels (for example, RGB) of the two-dimensional display panel 100.
  • sub-pixels for example, RGB
  • the first electrode 203 is disposed on the second substrate 102, the first electrode 203 includes a plurality of strip electrodes, and the second electrode 204 is A planar (plate-like) electrode. Therefore, the strip-shaped first electrode 203 can be formed by a patterning process, so that the error between the first electrode 203 and the sub-pixel is reduced, the precision is improved, and a better 3D display effect can be obtained. Compared with the formation of the strip electrodes on the third substrate 201, the 3D display effect is better because the accuracy of the box is lower than that of the patterning process.
  • the second substrate 102 further includes The alignment mark 104 of the first electrode 203.
  • the alignment mark 104 is disposed on a side of the second substrate 102 close to the first substrate 101.
  • the strip electrodes in the first electrode 203 are aligned by the alignment mark 104, and the alignment accuracy of the pixels on the second substrate 102 of the two-dimensional display panel 100 is required to be controlled within ⁇ 5 ⁇ m, so that the corresponding pixels can be entered.
  • the left and right eyes of the person form a 3D visual effect.
  • An alignment mark 104 as shown in FIG. 4 is only a schematic label, and may be two or more, which is not limited herein.
  • the strip electrodes may be at an angle of 10° to 15° with respect to the row direction or the column direction of the sub-pixels of the naked eye three-dimensional display device, so that the occurrence of interference fringes can be better avoided.
  • the naked-eye three-dimensional display device further includes a polarizing layer 105, and the polarizing layer 105 is disposed on a side of the second substrate 102 adjacent to the third substrate 201.
  • the first electrode 203 is in direct contact with the polarizing layer 105, and the process of bonding the spectroscopic device 200 to the two-dimensional display panel 100 is omitted, and the yield is improved, and the input of high-precision equipment is reduced.
  • the naked-eye three-dimensional display device provided by the present example can reduce the number of polarizing plates, thereby further reducing the placement height.
  • the naked eye three-dimensional display device further includes a first polarizing plate 106, and the transmission axis direction of the first polarizing plate 106 is perpendicular to the polarizing layer 105.
  • the direction of the transmission axis allows the 2D liquid crystal display panel to realize 2D display.
  • a second polarizing plate 205 is further included, and an equivalent voltage can be applied to the plurality of strip electrodes, so that the spectroscopic device constitutes the liquid crystal grating.
  • the first polarizing plate 106 is disposed on a side of the first substrate 101 away from the second substrate 102; the second polarizing plate 205 is disposed on a side of the third substrate 201 away from the second substrate 102.
  • the directions of the transmission axes of the first polarizing plate 106 and the second polarizing plate 205 are set to be the same direction and perpendicular to the direction of the transmission axis of the polarizing layer 105 to enable a 3D display function.
  • the liquid crystal in the second liquid crystal layer 202 can be deflected by different angles by adjusting the voltage between the first electrode 203 and the second electrode 204 in the spectroscopic device 200.
  • the lenticular lens form is formed (for example, a certain voltage can be applied to the entire surface electrode, and a voltage is applied to the plurality of strip electrodes to form a lenticular lens form) for 3D display.
  • the second polarizing plate 205 may not be provided.
  • the strip electrode width in the first electrode 203 is generally greater than 5 ⁇ m.
  • the naked eye three-dimensional display device further includes a touch electrode 206 , and the touch electrode 206 can be disposed on the third substrate 201 adjacent to the second substrate 102 .
  • the touch electrode 206 is closer to the third substrate 201 than the second electrode 204, so that a better touch effect can be obtained.
  • a transparent insulating layer 207 is disposed between the touch electrode 206 and the second electrode 204.
  • the touch electrode 206 can be a plurality of independent self-capacitance electrodes arranged in a matrix.
  • the touch display device can also be a mutual touch mode.
  • the touch electrode 206 includes a plurality of touch drive electrodes or a plurality of touch sensing electrodes, or includes a plurality of touch drive electrodes and a plurality of touches insulated from each other. Control the sensing electrode.
  • the touch driving electrode may be multiplexed by other layers, for example, the strip-shaped first electrode or the second electrode is multiplexed into the touch driving electrode.
  • the touch electrode may include a plurality of strip electrodes parallel to each other and perpendicular to the strip-shaped first electrode or the second electrode.
  • the material of the touch electrode 206 may be a transparent conductive material, for example, including any one of aluminum-doped zinc oxide, indium tin oxide, or indium zinc oxide. This embodiment does not impose any limitation.
  • the first liquid crystal layer 103 is sealed between the first substrate 101 and the second substrate 102 by the first sealant 107;
  • the liquid crystal layer 202 is sealed between the second substrate 102 and the third substrate 201 by the second sealant 208.
  • the first electrode and the second electrode are respectively disposed on the second substrate and the third substrate as an example.
  • embodiments according to the present disclosure are not limited thereto.
  • an embodiment according to the present disclosure also includes a case where both the first electrode and the second electrode are disposed on the second substrate or the third substrate.
  • the first electrode and the second electrode may be strip electrodes that are alternately disposed with each other. Therefore, according to an embodiment of the present disclosure, the first electrode and the second electrode may be disposed between the second substrate and the third substrate and configured to apply an electric field to the liquid crystal in the second liquid crystal layer
  • the spectroscopic device performs three-dimensional display.
  • the present embodiment provides a naked-eye three-dimensional display device. Different from the first embodiment, as shown in FIG. 5, the polarizing layer 105 of the naked-eye three-dimensional display device is disposed on the side of the second substrate 102 adjacent to the first substrate 101. The first electrode 203 is in direct contact with the second substrate 102. Thereby, the fabrication of the first electrode 203 can be facilitated.
  • the touch electrode 206 includes a plurality of independent self-capacitance electrodes arranged in a matrix, and the touch electrode
  • the plurality of self-capacitance electrodes of 206 are in the same layer as the plurality of strip electrodes of the second electrode 204 and are insulated from each other.
  • at least one column of self-capacitance electrodes may be disposed between two adjacent strip electrodes, and each column of self-capacitance electrodes includes a plurality of independent self-capacitance electrodes.
  • the plurality of strip electrodes of the touch electrode 206 and the second electrode 204 can be driven by a time division driving method, which can reduce interference between the touch signal and the 3D display signal.
  • the embodiment of the present disclosure further provides a method for manufacturing a naked eye three-dimensional display device, the method comprising the steps of: forming a two-dimensional display panel, the two-dimensional display panel comprising a first substrate, a second substrate, and the first substrate and the second substrate a first liquid crystal layer; a first electrode formed on a side of the second substrate away from the first substrate; a second electrode formed on the third substrate; a two-dimensional display panel forming the first electrode and a second electrode forming the second electrode a third substrate pair box, and a second liquid crystal layer is formed between the second substrate and the third substrate, the first electrode and the second electrode being configured to apply an electric field to the liquid crystal in the second liquid crystal layer to form a spectroscopic device for three-dimensional display .
  • a method of manufacturing a naked eye three-dimensional display device includes the following steps:
  • the two-dimensional display panel includes a first substrate, a second substrate, and a first liquid crystal layer disposed between the first substrate and the second substrate;
  • a polarizing layer may be formed by a nanoimprint technique on a side of the second substrate away from the first substrate; a first electrode is formed on the polarizing layer by a sputtering process, exposure, etching, and the first electrode is aligned by the alignment mark It is required that the alignment accuracy of the pixels with the second substrate is controlled within ⁇ 5 ⁇ m so that the corresponding pixels can enter the left and right eyes of the person to form a 3D visual effect.
  • the touch layer is formed on the lower surface of the third substrate, and the touch layer can be a single layer design or a multi-layer design.
  • the insulating layer is further prepared, and the insulating layer is used to block the touch layer and the second electrode to prevent short circuit.
  • a second electrode is formed after the insulating layer. Then, the two-dimensional display panel and the third substrate are aligned into a box, and the liquid crystal is injected to form a second liquid crystal layer to form a naked-eye three-dimensional display device. The second electrode and the first electrode form an electric field to drive the liquid crystal to rotate to form a spectroscopic device.
  • thermoplastic polymer material is applied to the substrate to raise the temperature and reach the glass transition temperature (Tg) of the thermoplastic material.
  • Tg glass transition temperature
  • the thermoplastic material has a reduced viscosity and an increased fluidity, and then a mold having a nanometer scale is pressed thereon and an appropriate pressure is applied.
  • the thermoplastic material fills the cavity in the mold. During this process, the thickness of the thermoplastic material should be greater than the cavity height of the mold to avoid damage caused by direct contact of the mold with the substrate.
  • the temperature is lowered to cure the thermoplastic material, thereby providing a pattern that coincides with the mold.
  • the mold is then removed and anisotropic etching is performed to remove residual polymer to obtain a pattern of thermoplastic material.
  • the next step is to transfer the graphics.
  • the pattern transfer can be performed by etching or stripping.
  • the etching technique uses a pattern of a thermoplastic material as a mask, and anisotropically etches the film layer underneath it to obtain a corresponding pattern.
  • the stripping process first coats a pattern of the thermoplastic material on the substrate with a metal film (due to the pattern of the thermoplastic material provided, the metal film is discontinuous, the side profile of the pattern of the thermoplastic material can be, for example, an inverted trapezoidal structure), and then organic
  • the solvent dissolves the thermoplastic polymer material, the metal thereon is also peeled off, and the metal film in close contact with the substrate is retained to obtain a transfer pattern.
  • the embossed polarizing layer can be formed by this method.
  • the polarizing layer is made of a polymer material.
  • the polarizing layer may include an iodine-based polarizing layer and a dye-based polarizing layer.
  • the polarizing layer may include an iodine polyvinyl alcohol type (I-PVA), a dichroic organic dye type, or the like, but is not limited thereto.
  • I-PVA iodine polyvinyl alcohol type
  • the present disclosure can form a polarizing layer by first forming a polymer film and then nanoimprinting. The present disclosure does not limit the material of the polarizing layer and the material of the thermoplastic material.
  • the naked eye three-dimensional display device obtained by the above manufacturing method can achieve at least one of the following beneficial effects: (1) using the back side of the second substrate to fabricate the first electrode, reducing the use amount of one substrate, and simplifying the flow; (2) No need for bonding process, simplified process flow, improved yield, and reduced input of high-precision equipment; (3) only need to reserve the alignment mark on the second substrate side during design, and when the first electrode is fabricated on the back side of the second substrate, By using the second substrate to reserve the alignment mark alignment, the precision can be controlled within ⁇ 5 ⁇ m; (4) because the substrate usage is reduced by one substrate, the placement height is reduced, the viewing distance can be reduced, and the 3D display effect is ensured.
  • the viewing distance of the display device using the disclosed embodiment can be shortened from 550 mm to 150 mm to reach the mobile phone use distance.

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Abstract

一种裸眼三维显示装置，包括二维显示面板(100)、第三基板(201)、第二液晶层(202)、第一电极(203)和第二电极(204)，二维显示面板(100)包括第一基板(101)、第二基板(102)和设置在第一基板(101)和第二基板(102)之间的第一液晶层(103)；第三基板(201)在第二基板(102)远离第一基板(101)的一侧与第二基板(102)相对设置；第二液晶层(202)设置在第二基板(102)与第三基板(201)之间；第一电极(203)和第二电极(204)设置在第二基板(102)和第三基板(201)之间，第一电极(203)和第二电极(204)被配置来对第二液晶层(202)中的液晶施加电场形成分光装置（200）以进行三维显示。利用该裸眼三维显示装置，可以减少一张基板使用量，流程简化，同时无需贴合工艺。

Description

裸眼三维显示装置 技术领域
本公开的至少一实施例涉及一种裸眼三维显示装置。
背景技术
随着液晶显示技术的发展，三维(three dimensional，3D)显示技术越来越备受关注，3D显示技术可以使得画面变得立体逼真，其原理在于利用人眼左右眼分别接受不同的画面，经过大脑对图像信息进行叠加重生，重新构建立体显示效果的影像。
发明内容
本公开的至少一实施例涉及一种裸眼三维显示装置，利用该裸眼三维显示装置，可以减少一张基板使用量，流程简化，同时无需贴合工艺，良率提高，减少高精度设备投入。由于减少一张基板的使用量，其放置高度减小，观看距离可以缩小。
本公开的至少一实施例提供了一种裸眼三维显示装置。该裸眼三维显示装置包括：二维显示面板，所述二维显示面板包括第一基板、第二基板和设置在所述第一基板和所述第二基板之间的第一液晶层；第三基板，在所述第二基板远离所述第一基板的一侧与所述第二基板相对设置；第二液晶层，设置在所述第二基板与所述第三基板之间；在所述第二基板和所述第三基板之间设置有第一电极和第二电极，所述第一电极和所述第二电极被配置来对所述第二液晶层中的液晶施加电场形成分光装置以进行三维显示。
附图说明
为了更清楚地说明本公开实施例的技术方案，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公开的一些实施例，而非对本公开的限制。
图1为一种液晶光栅示意图；
图2为一种裸眼三维显示装置示意图；
图3为一种裸眼三维显示装置放置高度示意图；
图4为本公开一实施例提供的一种裸眼三维显示装置示意图；
图5为本公开一实施例提供的一种裸眼三维显示装置示意图；
图6为本公开一实施例提供的一种裸眼三维显示装置示意图。
附图标记：
01-二维显示面板；011-下基板；012-上基板；013-液晶层；015-上偏光板；016-下偏光板；017-封框胶；02-液晶光栅；020-封框胶；021-上基板；022-液晶层；023-条状电极；024-面状电极；025-上偏光板；026-触控层；027-绝缘层；028-下基板；029-下偏光板；03-光学胶带(OCR)/光学透明树脂(OCA)；04-放置高度；100-二维显示面板；101-第一基板；102-第二基板；103-第一液晶层；104-对位标记；105-偏光层；106-第一偏光板；107-第一封框胶；200-分光装置；201-第三基板；202-第二液晶层；203-第一电极；204-第二电极；205-第二偏光板；206-触控电极；207-绝缘层；208-第二封框胶。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开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公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，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，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被 描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
为了实现三维(3D)显示效果，可以在显示屏上增加一层液晶光栅。如图1所示，液晶光栅一般是由上偏光板025、下偏光板029、上基板021、下基板028及上下基板之间的液晶层022组成，上下基板可分别具有条状电极和面状电极。加电时，条状电极与面状电极正对区域液晶分子发生偏转，液晶分子垂直基板排列，光线无法穿透，形成暗区(黑区)；无条状电极区的液晶分子不受电场作用，不发生偏转，光线穿透液晶盒(Cell)，形成亮区，这样就可形成多条明暗相间的条状条纹。例如，在此模式下，当左眼看到的图像显示在液晶屏上时，不透明的条纹会遮挡右眼，同理当右眼看到图像显示在液晶屏上时，不透明的条纹会遮挡左眼，通过将左右眼将可视画面分开，实现3D显示效果。
具有触控功能的裸眼3D触控显示面板，需要将液晶光栅和二维(2D)显示面板贴合在一起形成，如图2所示。液晶光栅制作方式可如下：在上基板021上制作触控层026、绝缘层027、面状电极024，在下基板028上制作条状电极023，最后将上基板021和下基板028进行对盒，并注入液晶层022，然后通过封框胶020进行密封，从而形成具有触控功能的液晶光栅02。2D显示面板01包括上基板012、下基板011、位于上基板012与下基板011之间的液晶层013，以及上偏光板015和下偏光板016，最后通过封框胶017进行密封。液晶光栅02和2D显示面板01可通过光学胶带(OCR)/光学透明树脂(OCA)03贴合在一起，形成最终裸眼3D触控显示模组。
通常的主动式裸眼3D显示模组，需要液晶光栅02和2D显示面板01通过OCR/OCA 03贴合，如图3所示。需要满足以下要求：(1)液晶光栅02通常需要两层基板，其工艺流程复杂；(2)为获得裸眼3D显示效果，仍需要将液晶光栅02与2D显示面板01进行贴合；(3)要求贴合对位精度为±5μm，这对贴合设备要求相当高，量产效率不高；(4)由于3D显示模组需要4片基板，为保证3D显示效果，对放置高度04有一定要求(一般来说观看距离越近，放置高度越小)，由于基板厚度的影响，会使得观看距离较远，这样3D显示效果将会较差，不能很好的呈现3D立体效果。放置高度例如是指液晶光栅02下基板028的厚度、2D显示面板01的上基板012的厚度以及液晶光栅02下基板028与2D显示面板01的上基板012之间的层的厚度的 总和。
本公开的至少一实施例提供了一种裸眼三维显示装置。该裸眼三维显示装置包括二维显示面板、第三基板、第二液晶层、第一电极和第二电极，二维显示面板包括第一基板、第二基板和设置在第一基板和第二基板之间的第一液晶层；第三基板在第二基板远离第一基板的一侧与第二基板相对设置；第二液晶层设置在第二基板与第三基板之间；在第二基板靠近第三基板的一侧设置第一电极，在第三基板靠近第二基板的一侧设置第二电极，第一电极和第二电极被配置来对第二液晶层中的液晶施加电场形成分光装置以进行三维显示。
本公开的至少一实施例提供的裸眼三维显示装置，可以减少一张基板使用量，流程简化，同时无需贴合工艺，良率提高，减少高精度设备投入。由于减少一张基板的使用量，其放置高度减小，观看距离可以缩小，可以在较小的观看距离内获得较好的三维显示效果，可达到手机使用距离。
以下通过几个实施例予以说明。
实施例一
本实施例提供了一种裸眼三维显示装置，如图4所示，该裸眼三维显示装置包括二维显示面板100。二维显示面板100包括第一基板101、第二基板102和设置在第一基板101和第二基板102之间的第一液晶层103。该裸眼三维显示装置还包括第三基板201、第二液晶层202、第一电极203和第二电极204。第三基板201在第二基板102远离第一基板101的一侧与第二基板102相对设置。第二液晶层202设置在第二基板102与第三基板201之间。在第二基板102靠近第三基板201的一侧设置第一电极203，在第三基板201靠近第二基板102的一侧设置第二电极204。第一电极203和第二电极204被配置来对第二液晶层202中的液晶施加电场使得第二液晶层202中的液晶旋转形成分光装置(液晶分光装置)200以进行3D显示。
本实施例中，分光装置200中的一组电极设置在第二基板102远离第一基板101的一侧，二维显示面板100和分光装置200共用第二基板102。即，第二基板102既作为二维显示面板100的上基板，也同时作为分光装置200的下基板，该裸眼三维显示装置仅包括三个基板，与通常的裸眼三维显示装置需要4片基板相比，减少了一张基板，放置高度减小，观看距离可以缩小， 例如，观看距离可由550mm缩短至150mm，达到手机使用距离。并且也省去了将分光装置200与二维显示面板100进行贴合的过程，流程简化，良率提高，减少了高精度设备的投入。
例如，第一电极203和第二电极204的材料可以是透明导电材料，例如可包括掺铝氧化锌、氧化铟锡或氧化铟锌中的任意一种，本公开实施例对此不做任何限制。
例如，第一电极203和第二电极204至少之一包括多个条状电极。例如，第一电极203和第二电极204之一包括多个条状电极，另一个为面状电极，或者，第一电极203和第二电极204均包括多个条状电极。多个条状电极互相平行。加电时，条状电极与面状电极正对区域或者两组条状电极正对区域的液晶分子发生偏转，光线无法穿透，形成暗区(黑区)；无条状电极区的液晶分子不偏转，光线穿透液晶盒，形成亮区，这样就形成明暗相间的条状条纹，可与二维显示面板100的子像素(例如，RGB)形成特定的遮挡关系。在此模式下，当左眼看到的图像显示在液晶屏上时，不透明的条纹会遮挡右眼，同理当右眼看到图像显示在液晶屏上时，不透明的条纹会遮挡左眼，通过将左右眼将可视画面分开，实现3D显示效果。
例如，在本实施例一示例提供的裸眼三维显示装置中，如图4所示，第一电极203设置在第二基板102上，第一电极203包括多个条状电极，第二电极204为面状(板状)电极。从而，可采用构图工艺制作条状的第一电极203，使得第一电极203与子像素间误差减少，精度提高，可以获得较好的3D显示效果。与条状电极形成在第三基板201上相比，因对盒精度低于构图工艺的精度，3D显示效果更好。
例如，在本实施例一示例提供的裸眼三维显示装置中，为了获得分光装置与2D显示面板之间的较好的对位效果，如图4所示，第二基板102上还包括用于制作第一电极203的对位标记104。例如，对位标记104设置在第二基板102靠近第一基板101的一侧。第一电极203中的条状电极通过对位标记104进行对位，要求其与二维显示面板100的第二基板102上的像素的对位精度控制在±5μm内，这样才能使得相应像素进入人的左右眼，形成3D视觉效果。如图4所示的一个对位标记104仅为示意性标注，还可以是两个或更多个，在此不作限定。
例如，条状电极可以与裸眼三维显示装置的子像素的行方向或列方向呈10°～15°夹角，从而能够较好的避开干扰条纹的出现。
例如，在本实施例一示例提供的裸眼三维显示装置中，如图4所示，该裸眼三维显示装置还包括偏光层105，偏光层105设置在第二基板102靠近第三基板201的一侧。第一电极203与偏光层105直接接触，省去了将分光装置200与二维显示面板100进行贴合的过程，良率提高，减少了高精度设备的投入。与通常的贴合工艺中分光装置下基板与2D显示面板上基板之间需要使用两个偏光板相比，本示例提供的裸眼三维显示装置可减少偏光板的数量，从而进一步减小放置高度。
例如，在本实施例一示例提供的裸眼三维显示装置中，如图4所示，该裸眼三维显示装置还包括第一偏光板106，第一偏光板106的透光轴方向垂直于偏光层105的透光轴方向，可使得2D液晶显示面板实现2D显示。
例如，在本实施例一示例提供的裸眼三维显示装置中，如图4所示，还包括第二偏光板205，可对多个条状电极施加等值的电压，使得分光装置构成液晶光栅。第一偏光板106设置在第一基板101远离第二基板102的一侧；第二偏光板205设置在第三基板201远离第二基板102的一侧。第一偏光板106和第二偏光板205的透光轴方向设置成相同方向，并与偏光层105的透光轴方向相互垂直，以能实现3D显示功能。例如，在本实施例一示例提供的裸眼三维显示装置中，通过调节分光装置200中第一电极203和第二电极204之间的电压还可以使第二液晶层202中的液晶通过偏转不同角度形成柱状透镜形式(例如，可对整面电极施加一定的电压，对多个条状电极施加电压不同，形成柱状透镜形式)，以进行3D显示。此情况下，可以不设置第二偏光板205。例如，第一电极203中的条状电极宽度一般大于5μm。
例如，在本实施例一示例提供的裸眼三维显示装置中，如图4所示，该裸眼三维显示装置还包括触控电极206，触控电极206可设置在第三基板201靠近第二基板102的一侧。例如，该触控电极206比第二电极204更靠近第三基板201，从而可获得较好的触控效果。触控电极206与第二电极204之间设置有一层透明绝缘层207。该触控电极206可为多个相互独立的呈矩阵排列的自电容电极，例如当有手指触摸时，手指的电容将会叠加到对应的触控电极上，通过检测各触控电极的电容值变化可以判断出触控位置。裸眼三 维显示装置也可以为互电容的触控模式，例如，该触控电极206包括多个触控驱动电极或多个触控感应电极、或者包括相互绝缘的多个触控驱动电极和多个触控感应电极。当触控电极206为触控感应电极时，触控驱动电极可由其它层复用，例如条状的第一电极或者第二电极复用为触控驱动电极。此时，触控电极可包括多个互相平行的条状电极，并与条状的第一电极或者第二电极相互垂直。当有手指触摸触控面板时，影响了触摸点附近电容的耦合，从而改变了触摸点附近电容的电容量。通过检测这种电容值的变化从而判断出触控位置。因此，设置该触控层206可实现触控功能，进一步提高人机互动性。
例如，触控电极206的材料可以是透明导电材料，例如包括掺铝氧化锌、氧化铟锡或氧化铟锌中的任一种，本实施例对此不做任何限制。
例如，在本实施例一示例提供的裸眼三维显示装置中，如图4所示，第一液晶层103通过第一封框胶107密封在第一基板101与第二基板102之间；第二液晶层202通过第二封框胶208密封在第二基板102与第三基板201之间。
在上述实施例中，以第一电极和第二电极分别设置在第二基板和第三基板上为例进行了描述。然而，根据本公开的实施例并不限制于此。例如，根据本公开的实施例也包括第一电极和第二电极均设置在第二基板或第三基板上的情况。此时，第一电极和第二电极可以为彼此交替设置的条状电极。因此，根据本公开的实施例，第一电极和第二电极可以设置在所述第二基板和所述第三基板之间，并被配置来对所述第二液晶层中的液晶施加电场形成分光装置以进行三维显示。
实施例二
本实施例提供一种裸眼三维显示装置，与实施例一不同的是，如图5所示，该裸眼三维显示装置的偏光层105设置在第二基板102靠近第一基板的101一侧。第一电极203与第二基板102直接接触。从而，可利于第一电极203的制作。
实施例三
本实施例提供一种裸眼三维显示装置，与实施例一不同的是，如图6所示，触控电极206包括多个相互独立的呈矩阵排列的自电容电极，触控电极 206的多个自电容电极与第二电极204的多个条状电极同层且彼此绝缘设置。例如，可在相邻两个条状电极之间设置至少一列自电容电极，每一列自电容电极包括多个相互独立的自电容电极。从而，可以节省工艺，提高效率。
例如，触控电极206和第二电极204的多个条状电极可采用分时驱动方式进行驱动，可减少触控信号和3D显示信号之间的干扰。
本公开实施例还提供一种裸眼三维显示装置的制造方法，该方法包括如下步骤：形成二维显示面板，二维显示面板包括第一基板、第二基板和设置在第一基板和第二基板之间的第一液晶层；在第二基板远离第一基板的一侧形成第一电极；在第三基板上形成第二电极；将形成第一电极的二维显示面板与形成第二电极的第三基板对盒，并在第二基板与第三基板之间形成第二液晶层，第一电极和第二电极被配置来对第二液晶层中的液晶施加电场形成分光装置以进行三维显示。
一个示例中，裸眼三维显示装置的制造方法包括如下步骤：
S1：形成二维显示面板，二维显示面板包括第一基板、第二基板和设置在第一基板和第二基板之间的第一液晶层；
S2：在第二基板远离第一基板的一侧依次制作偏光层、第一电极；
S3：在第三基板下表面依次制作触控层、绝缘层和第二电极；
S4：将制备完成的二维显示面板和第三基板进行对盒，并注入液晶以在第二基板和第三基板之间形成第二液晶层，可通过封框胶密封形成分光装置；
S5：在上述二维显示面板和分光装置的组合的上下表面贴附第一偏光板和第二偏光板，形成最终的裸眼三维显示装置。
例如，在第二基板远离第一基板的一侧可通过纳米压印技术形成偏光层；在偏光层上通过溅射工艺、曝光、刻蚀形成第一电极，第一电极通过对位标记对位，要求其与第二基板的像素的对位精度控制在±5μm内，以能使得相应像素进入人的左右眼，形成3D视觉效果。在第三基板下表面制作触控层，此触控层可为单层设计，也可为多层设计。在完成触控层后继续制备绝缘层，此绝缘层用于阻隔触控层和第二电极，防止发生短路。在绝缘层后再制作一层第二电极。然后，将二维显示面板和第三基板对位成盒，同时注入液晶形成第二液晶层，形成裸眼三维显示装置。第二电极和第一电极形成电场驱动液晶旋转以形成分光装置。
例如，纳米压印技术是通过模版，将图形转移到相应的衬底上，转移的媒介通常是一层很薄的聚合物膜，通过热压或者辐照等方法使其结构硬化从而保留下转移的图形。首先在衬底上涂上一薄层热塑性高分子材料，升温并达到此热塑性材料的玻璃化转变温度(Tg)之上。热塑性材料在高弹态下，黏度降低，流动性增强，随后将具有纳米尺度的模具压在上面，并施加适当的压力。热塑性材料会填充模具中的空腔，在此过程中，热塑性材料的厚度应较模具的空腔高度要大，从而避免模具与衬底的直接接触而造成损伤。模压过程结束后，温度降低使热塑性材料固化，因而能具有与模具重合的图形。随后移去模具，并进行各相异性刻蚀去除残留的聚合物，得到热塑性材料的图形。接下来进行图形转移。图形转移可以采用刻蚀或者剥离的方法。刻蚀技术以热塑性材料的图形为掩膜，对其下面与其接触的膜层进行各向异性刻蚀，从而得到相应的图形。剥离工艺先在衬底上的热塑性材料的图形上镀一层金属薄膜(因设置的热塑性材料的图形，金属薄膜不连续，热塑性材料的图形的侧剖面例如可为倒梯形结构)，然后用有机溶剂溶解掉热塑性聚合物材料，其上的金属也将被剥离，与衬底紧密接触的金属薄膜得以保留，从而获得转移图形。通过这种方法可以形成压印偏光层。
例如，偏光层材质为高分子材料。例如，偏光层可包括碘系偏光层和染料系偏光层。进一步的，偏光层可包括碘类聚乙烯醇型(I-PVA)和二色性有机染料型等，但不限于此。不同于通常的拉伸方式，本公开可采用先形成高分子膜，再采用纳米压印的方式来形成偏光层。本公开对于偏光层材质和热塑性材料的材质不做限定。
本公开通过上述制作方法得到的裸眼三维显示装置，可达到以下至少之一的有益效果：(1)利用第二基板背侧制作第一电极，减少一张基板使用量，流程简化；(2)无需贴合工艺，工艺流程简化，良率提高，减少高精度设备投入；(3)只需要在设计时在第二基板侧预留对位标记，在第二基板背侧制作第一电极时，利用第二基板预留对位标记对位，可以将精度控制在±5μm内；(4)由于基板使用量减少一张基板，其放置高度减小，观看距离可以缩小，3D显示效果得到确保，采用此公开实施例的显示装置的观看距离可由550mm缩短至150mm，达到手机使用距离。
有以下几点需要说明：
(1)除非另作定义，本公开实施例以及附图中，同一附图标记代表同一含义。
(2)本公开实施例附图中，只涉及到与本公开实施例涉及到的结构，其他结构可参考通常设计。
(3)为了清晰起见，在用于描述本公开的实施例的附图中，层或区域的厚度被放大。可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
以上，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。
本申请要求于2016年9月14日递交的中国专利申请第201621058121.2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 (16)

  1. 一种裸眼三维显示装置，包括：
    二维显示面板，所述二维显示面板包括第一基板、第二基板和设置在所述第一基板和所述第二基板之间的第一液晶层；
    第三基板，在所述第二基板远离所述第一基板的一侧与所述第二基板相对设置；
    第二液晶层，设置在所述第二基板与所述第三基板之间；
    其中，在所述第二基板和所述第三基板之间设置有第一电极和第二电极，所述第一电极和所述第二电极被配置来对所述第二液晶层中的液晶施加电场形成分光装置以进行三维显示。
  2. 根据权利要求1所述的裸眼三维显示装置，其中，所述第一电极设置在所述第二基板靠近所述第三基板的一侧，所述第二电极设置在所述第三基板靠近所述第二基板的一侧。
  3. 根据权利要求2所述的裸眼三维显示装置，其中，所述第一电极与所述第二基板直接接触。
  4. 根据权利要求2或3所述的裸眼三维显示装置，其中，所述第一电极和所述第二电极至少之一包括多个条状电极。
  5. 根据权利要求2所述的裸眼三维显示装置，其中，所述第一电极包括多个条状电极，所述第二电极为板状电极。
  6. 根据权利要求1-5任一项所述的裸眼三维显示装置，其中，所述第二基板上还包括用于制作所述第一电极的对位标记。
  7. 根据权利要求6所述的裸眼三维显示装置，其中，所述对位标记设置在所述第二基板靠近所述第一基板的一侧。
  8. 根据权利要求1-7任一项所述的裸眼三维显示装置，还包括偏光层，所述偏光层设置在所述第二基板靠近所述第三基板的一侧。
  9. 根据权利要求8所述的裸眼三维显示装置，其中，所述第一电极与所述偏光层直接接触。
  10. 根据权利要求1-7任一项所述的裸眼三维显示装置，还包括偏光层，所述偏光层设置在所述第二基板靠近所述第一基板的一侧。
  11. 根据权利要求1-10任一项所述的裸眼三维显示装置，还包括第一偏光板，所述第一偏光板设置在所述第一基板远离所述第二基板的一侧。
  12. 根据权利要求11所述的裸眼三维显示装置，还包括第二偏光板，所述第二偏光板设置在所述第三基板远离所述第二基板的一侧。
  13. 根据权利要求1-12任一项所述的裸眼三维显示装置，还包括触控电极，所述触控电极设置在所述第三基板靠近所述第二基板的一侧。
  14. 根据权利要求13所述的裸眼三维显示装置，其中，所述触控电极包括多个自电容电极，所述触控电极的多个自电容电极与所述第一电极或所述第二电极的多个条状电极同层且彼此绝缘设置。
  15. 根据权利要求13所述的裸眼三维显示装置，其中，所述触控电极比所述第二电极更靠近所述第三基板，且与所述第二电极之间设置有一层透明绝缘层。
  16. 根据权利要求1-15任一项所述的裸眼三维显示装置，其中，所述第一液晶层通过第一封框胶密封在所述第一基板与所述第二基板之间；所述第二液晶层通过第二封框胶密封在所述第二基板与所述第三基板之间。
PCT/CN2017/080028 2016-09-14 2017-04-11 裸眼三维显示装置 Ceased WO2018049814A1 (zh)

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