CN105842862A - Manufacturing method of ultrathin 2D/3D switching display - Google Patents
Manufacturing method of ultrathin 2D/3D switching display Download PDFInfo
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- CN105842862A CN105842862A CN201610388888.XA CN201610388888A CN105842862A CN 105842862 A CN105842862 A CN 105842862A CN 201610388888 A CN201610388888 A CN 201610388888A CN 105842862 A CN105842862 A CN 105842862A
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- liquid crystal
- light valve
- crystal light
- switching display
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
Abstract
The invention relates to a manufacturing method of an ultrathin 2D/3D switching display and belongs to the 3D stereo display field. The objective of the invention is to solve the problem of large overall thickness of a traditional 2D/3D switching display. The manufacturing method includes the following steps that: step 1, a polarizer at the upper surface of a 2D display screen is adopted as a lower-layer glass substrate of a liquid crystal light valve to make the liquid crystal light valve, the upper surface of the polarizer is coated with a film, so that a lower-layer ITO electrode of the liquid crystal light valve can be formed; step 2, the upper surface of a formed upper-layer glass substrate of the liquid crystal light valve is coated with a PI directional layer, rubbing orientation is carried out; step 3, UV polymer is adopted to form a cylindrical lens concave grating substrate on a PET film through a mould, and rubbing orientation is carried out on the cylindrical lens concave grating substrate; and step 4, spaces between the cylindrical lens concave grating substrate and the PI directional layer are filled with a birefringent liquid crystal, so that a birefringent grating lens can be formed, and the preparation of the 2D/3D switching display can be completed.
Description
Technical field
The invention belongs to 3D field of stereoscopic display.
Background technology
Along with making rapid progress of Display Technique development, 3D Display Technique has replaced 2D Display Technique in occupation of Display Technique
Market, forward position, and bore hole Display Technique the most gradually present replace glasses Wearable 3D trend.The reality that bore hole shows
Now being mainly by sticking a piece of lenticular sheet on the 2 d display screen, the focal plane of lenticulation is pasted on a display screen.
The video image that several have horizontal parallax generates the video image after a width synthesis, is reflected by the light splitting of lenticular sheet
Effect, propagates to suitable position in different directions by the light being respectively arranged with horizontal parallax image, and beholder stands in visible area
Just there is good 3D display effect.But it is because in image information having some character images etc. not having 3D effect, by
Placing in the angle of inclination of post lens causes on a display screen, and the resolution ratio making whole 3D show declines, and the beholder made has
Obscuring, do not see the sensation of Chu, the display effect not having 3D is good.
The display of 2D/3D compatible switching arises at the historic moment in this case.See Fig. 1 and Fig. 2 and introduce 2D/3D switching
Principle: 2D/3D switching device includes double-refraction lens grating 1 (Lenticular screen), liquid crystal light valve 2, polaroid 3 and takes
To glass 4, the lower surface patch orientation glass 4 of double-refraction lens grating 1, orientation glass 4 pastes the upper table of liquid crystal light valve 2 again
Face, the lower surface of liquid crystal light valve 2 pastes 2D display screen by polaroid 3.
First the light that 2D display screen sends be incident to polaroid 3;Wherein double-refraction lens grating 1 is by post lens concave grating
Substrate 1-1 by filling curing type liquid crystal material 1-2 and carrying out high temperature orientation and ultra-violet curing and make and obtain, the recessed light of post lens
Gate substrate 1-1 is prepared in PET film 1-3 by mould, for positivity liquid crystal, and the extraordinary ray folding of liquid crystal
Penetrate rate ne> ordinary refraction index n0, array substrate refractive index is npUnirefringence material and n0=np.Liquid crystal light
Valve 2 includes two pieces of TN box orientation glass 2-1, and the medial surface of two pieces of TN box orientation glass 2-1 is laid with ITO electrode
2-2, filling liquid crystal molecule 2-3 between two pieces of TN box orientation glass 2-1.Fig. 1 is to supply to the ITO electrode 3 of liquid crystal light valve
Electricity situation, first the light that 2D display screen sends be incident to polaroid 3 polarization light output, and liquid crystal molecule 2-3 is at electric field
Effect under, this linearly polarized light is when by liquid crystal light valve 2, and its polarization direction is not changed.This linearly polarized light incides post
During lens, the major axis of the liquid crystal molecule of the liquid crystal material 1-2 in the polarization direction of this linearly polarized light and double-refraction lens grating 1
Direction is consistent, and the liquid crystal molecule 1-2 in double-refraction lens grating 1 shows major axis refractive index, due to ne> npSo that
Linearly polarized light reflects at the intersection of liquid crystal material 1-2 and array substrate 1-1, thus realizes 3D and show.Figure
2 is the not powered situation of liquid crystal light valve 2, the linearly polarized light of 2D display screen 1 when by liquid crystal light valve 2, linearly polarized light
Polarization direction is rotated by 90 °, and when this light is to double-refraction lens grating 1, the polarization direction of linearly polarized light is with double
In refractor grating 1, the liquid crystal molecule short-axis direction of liquid crystal material 1-2 is consistent, liquid crystal performance in double-refraction lens grating 1
Go out refractive index n of short axle0=npSo that the emergent light direct projection eventually passing double-refraction lens grating 1 goes out grating, it is achieved 2D
Display.
One of vitals of 2D/3D switching device is liquid crystal light valve 2, its operation principle such as Fig. 3 and Fig. 4, is given in figure
Two pieces of TN box orientation glass 2-1 and liquid crystal molecule 2-3, omit ITO electrode 2-2, and Fig. 3 is situation about powering up, and liquid crystal divides
Sub-2-3 arranges along direction of an electric field, and light beam polarization direction is constant, directly passes through;Fig. 4 is not powered situation, two pieces of TN boxes
The inner side direction recess of orientation glass 2-1 moves towards orthogonal, and liquid crystal divides 2-3 by half-twist, polarization side when light beam passes through
To also half-twist.
According to above-mentioned introduction, existing making 2D/3D switching display at least needs through three laminatings, and birefringence is saturating
Exist between the lower surface of mirror grating 1 and orientation glass 4 the softest+firmly fit, this orientation glass 4 with on liquid crystal light valve 2
Exist once firmly+firmly fit between the TN box orientation glass 2-1 on surface, the polaroid 3 and 2D of liquid crystal light valve 2 lower surface
Exist between display screen once hard+firmly fit;Could export after above-mentioned three laminatings required for final people needs
2D/3D switching display, it is the thickest to there is integral thickness in the 2D/3D switching display produced under this mode, technological process
Very complicated, produces the problems such as yield is low.
Summary of the invention
The invention aims to solve tradition 2D/3D switching display, to there is integral thickness the thickest, and technological process is loaded down with trivial details multiple
Miscellaneous, produce the problems such as yield is low, it is provided that the preparation method of a kind of ultra-thin 2D/3D switching display.
The preparation method of a kind of ultra-thin 2D/3D switching display of the present invention, the method comprises the following steps:
Step one, make liquid crystal light valve using the polaroid of the upper surface of 2D display screen as lower floor's glass substrate of liquid crystal light valve,
Upper surface at polaroid uses the mode of plated film to produce lower floor's ITO electrode of liquid crystal light valve;
Step 2, the liquid crystal light valve completed upper strata glass substrate upper surface be coated with last layer PI oriented layer, pass through
Levelling, solidification carry out friction orientation to PI oriented layer;
Step 3, by mould UV polymer produced in PET film post lens concave grating substrate, and coupled columns
Lens concave grating substrate carries out friction orientation;
Step 4, between post lens concave grating substrate and PI oriented layer fill birefringence liquid crystal, formed birefringent lens light
Grid, complete the preparation of 2D/3D switching display.
Advantages of the present invention: only 3 blocks glass in the present invention whole 2D/3D switching display (LCDs 2 pieces,
Liquid crystal light valve 1 piece), the laminating of a Glass+Flim (hard+soft), and whole 2D/3D switching display in original scheme
In have fully 5 blocks of glass (LCDs 2 pieces, liquid crystal light valve 2 pieces, be orientated 1 piece of glass), a Glass+Flim
Laminating and the laminating of twice Glass+Glass (hard+hard), obtained product with compact structure, integrated level height can use simultaneously
The production line of LCDs makes, and automaticity high efficiency and yield all get a promotion.
Accompanying drawing explanation
Fig. 1 is the structural representation of tradition 2D/3D switching display, powering state;
Fig. 2 is the structural representation of tradition 2D/3D switching display, not powered state;
Fig. 3 is the liquid crystal arrangement schematic diagram under liquid crystal light valve powering state,;
Fig. 4 is the liquid crystal arrangement schematic diagram under the not powered state of liquid crystal light valve;
Fig. 5 is the schematic diagram that the preparation method of a kind of ultra-thin 2D/3D switching display of the present invention relates to.
Detailed description of the invention
Detailed description of the invention one: present embodiment is described below in conjunction with Fig. 5, a kind of ultra-thin 2D/3D described in present embodiment
The preparation method of switching display, the method comprises the following steps:
Step one, make liquid crystal using the polaroid 3 of 2D display screen 6 upper surface as lower floor's glass substrate of liquid crystal light valve 2
Light valve 2, the upper surface at polaroid 3 uses the mode of plated film to produce lower floor's ITO electrode 2-7 of liquid crystal light valve 2;
Step 2, the liquid crystal light valve 2 completed upper strata glass substrate 2-1 upper surface be coated with last layer PI oriented layer 5,
Through levelling, solidification, PI oriented layer 5 is carried out friction orientation;
Step 3, by mould, UV polymer is produced post lens concave grating substrate 1-1 in PET film 1-3, and
And coupled columns lens concave grating substrate 1-1 carries out friction orientation;
Step 4, between post lens concave grating substrate 1-1 and PI oriented layer 5 fill birefringence liquid crystal 1-2, formed two-fold
Penetrate lenticulation 1, complete the preparation of 2D/3D switching display.
Mould described in step 2 can be flat plate mold or roller mould.
2D display screen 6 uses TN panel, TFT class panel, VA class panel, CPA panel (ASV panel), especially
It it is IPS panel.
In present embodiment, liquid crystal light valve 2 is conventional structure, simply using polaroid 3 as lower floor's glass substrate, and other composition
For upper strata glass substrate 2-1, upper ITO electrode 2-2, upper strata TN box PI oriented layer 2-3, liquid crystal layer 2-4 and both sides
Frame adhesive 2-5, lower floor TN box PI oriented layer 2-6, lower floor's ITO electrode 2-7, structure is as shown in Figure 5.
Required liquid crystal light valve 2 is produced in requirement design according to client, determines liquid crystal light valve 2 upper strata glass according to focal length
The thickness of glass of glass substrate 2-1.Then it is coated with last layer PI oriented layer 5 at liquid crystal light valve 2 upper surface.In the present invention, PI is fixed
Ke's formula print process or silk screen print method is used to the painting method of layer 5.Obtain being orientated merit through preliminary drying, solidification, friction process
The PI oriented layer 5 of energy.
In oriented layer 5, PI material can be to be orientated by light or low-temperature setting material, it is ensured that will not be to when solidification
Quality impairment is caused through ready-made 2D display screen 6.
Present embodiment utilize the technique of Flim plated film in upper polaroid 3 Shang Du lower floor ITO electrode 2-7 of 2D display screen 6,
Make 2D display screen 6 and liquid crystal light valve 2 share one piece of substrate, polaroid 3 makes a liquid crystal light valve 2, reduces
Glass+Glass laminating between one liquid crystal light valve 2 and 2D display screen 6.
The upper strata glass substrate 2-1 of liquid crystal light valve 2 directly coats PI oriented layer so that 2D/3D switching Grating Film is straight
Connect and be fitted on liquid crystal light valve 2, decrease the Glass+Glass laminating between one orientation glass 4 and liquid crystal light valve 2.
Through simplifying of twice Glass+Glass laminating, made 2D/3D switching display integrated level is greatly increased, overall
Thickness is substantially reduced, the problem simultaneously also solving fabrication processing very complicated.
Claims (3)
1. the preparation method of a ultra-thin 2D/3D switching display, it is characterised in that the method comprises the following steps:
Step one, using the polaroid (3) of 2D display screen (6) upper surface as lower floor's glass substrate of liquid crystal light valve (2)
Making liquid crystal light valve (2), the upper surface at polaroid (3) uses the mode of plated film to produce the lower floor of liquid crystal light valve (2)
ITO electrode (2-7);
Step 2, to be coated with last layer PI at the upper surface of the upper strata glass substrate (2-1) of the liquid crystal light valve (2) completed fixed
To layer (5), through levelling, solidification, PI oriented layer (5) is carried out friction orientation;
Step 3, by mould UV polymer produced in PET film (1-3) post lens concave grating substrate (1-1),
And coupled columns lens concave grating substrate (1-1) carries out friction orientation;
Step 4, filling birefringence liquid crystal (1-2) between post lens concave grating substrate (1-1) and PI oriented layer (5),
Form double-refraction lens grating (1), complete the preparation of 2D/3D switching display.
The preparation method of a kind of ultra-thin 2D/3D switching display, it is characterised in that step
In one, the painting method of PI oriented layer (5) uses Ke's formula print process or silk screen print method.
The preparation method of a kind of ultra-thin 2D/3D switching display, it is characterised in that 2D shows
Display screen (6) uses TN panel, TFT class panel, VA class panel, CPA panel or IPS panel.
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CN106249467A (en) * | 2016-10-31 | 2016-12-21 | 宁波万维显示科技有限公司 | Bore hole 3D display device and preparation method thereof |
CN107918233A (en) * | 2016-10-24 | 2018-04-17 | 京东方科技集团股份有限公司 | A kind of display device |
WO2018166207A1 (en) * | 2017-03-17 | 2018-09-20 | 京东方科技集团股份有限公司 | Display switching apparatus, display and electronic device |
CN109345983A (en) * | 2018-10-28 | 2019-02-15 | 中山市格兰特实业有限公司 | A kind of realization subway interaction systems and its 3 D stereo glass |
EP3701326A4 (en) * | 2017-10-26 | 2021-07-28 | Magic Leap, Inc. | Augmented reality display having liquid crystal variable focus element and roll-to-roll method and apparatus for forming the same |
CN113703079A (en) * | 2020-05-22 | 2021-11-26 | 北京芯海视界三维科技有限公司 | Method for manufacturing grating assembly |
CN114442358A (en) * | 2022-01-14 | 2022-05-06 | 深圳英伦科技股份有限公司 | Liquid crystal lens and preparation method thereof |
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CN203397025U (en) * | 2013-04-25 | 2014-01-15 | 上海立体数码科技发展有限公司 | 3D optical grating integrated with 3D interactive electrode and display device comprising same |
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Cited By (9)
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CN107918233A (en) * | 2016-10-24 | 2018-04-17 | 京东方科技集团股份有限公司 | A kind of display device |
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CN106249467A (en) * | 2016-10-31 | 2016-12-21 | 宁波万维显示科技有限公司 | Bore hole 3D display device and preparation method thereof |
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EP3701326A4 (en) * | 2017-10-26 | 2021-07-28 | Magic Leap, Inc. | Augmented reality display having liquid crystal variable focus element and roll-to-roll method and apparatus for forming the same |
US11921290B2 (en) | 2017-10-26 | 2024-03-05 | Magic Leap, Inc. | Augmented reality display having liquid crystal variable focus element and roll-to-roll method and apparatus for forming the same |
CN109345983A (en) * | 2018-10-28 | 2019-02-15 | 中山市格兰特实业有限公司 | A kind of realization subway interaction systems and its 3 D stereo glass |
CN113703079A (en) * | 2020-05-22 | 2021-11-26 | 北京芯海视界三维科技有限公司 | Method for manufacturing grating assembly |
CN114442358A (en) * | 2022-01-14 | 2022-05-06 | 深圳英伦科技股份有限公司 | Liquid crystal lens and preparation method thereof |
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