CN107991782B - Naked eye 3D display device - Google Patents
Naked eye 3D display device Download PDFInfo
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- CN107991782B CN107991782B CN201711080471.8A CN201711080471A CN107991782B CN 107991782 B CN107991782 B CN 107991782B CN 201711080471 A CN201711080471 A CN 201711080471A CN 107991782 B CN107991782 B CN 107991782B
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 35
- 239000011521 glass Substances 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 239000012790 adhesive layer Substances 0.000 claims abstract description 8
- 238000003491 array Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 20
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 8
- 239000004417 polycarbonate Substances 0.000 claims description 8
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 6
- 229920000515 polycarbonate Polymers 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 27
- 239000010408 film Substances 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
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- 238000012360 testing method Methods 0.000 description 4
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- 238000000034 method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 238000007516 diamond turning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 238000001746 injection moulding Methods 0.000 description 2
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
本发明提供了一种裸眼3D显示装置。该裸眼3D显示装置包括：液晶显示屏；设置在所述液晶显示屏的出光面一侧的过渡玻璃片；微柱透镜阵列膜片，所述微柱透镜阵列膜片靠近过渡玻璃片的一侧是平坦的，远离过渡玻璃片的一侧包括多个平行的微柱透镜的阵列；设置在所述微柱透镜阵列膜片的平坦的一侧含有衬底的胶层；及设置在微柱透镜阵列膜片的任一侧的复眼透镜阵列膜片，该复眼透镜阵列膜片包括多个复眼透镜的阵列，并且所述微柱透镜阵列膜片形成的像与复眼透镜的焦点重合。本发明的裸眼3D显示装置的装配效率高、成本低，并且有效降低了装置的串扰危害。
The present invention provides a naked eye 3D display device. The naked-eye 3D display device includes: a liquid crystal display screen; a transition glass sheet disposed on one side of the light-emitting surface of the liquid crystal display screen; It is flat, and the side away from the transition glass sheet includes a plurality of parallel micro-cylindrical lens arrays; the flat side of the micro-cylindrical lens array film is provided with an adhesive layer containing a substrate; and the micro-cylindrical lens is provided on the flat side A fly-eye lens array film on either side of the array film, the fly-eye lens array film includes an array of a plurality of fly-eye lenses, and the image formed by the micro-cylindrical lens array film coincides with the focal point of the fly-eye lens. The naked-eye 3D display device of the present invention has high assembly efficiency and low cost, and effectively reduces the crosstalk harm of the device.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a naked-eye 3D (Three-dimensional) display device.
Background
The appearance of the stereoscopic display technology is another technical revolution after black and white are replaced by colors in the image field, and naked eye stereoscopic display is a development trend of the display industry. The naked eye 3D display technology is the latest and leading-edge high-tech technology in the image industry, changes the visual fatigue brought to people by the traditional plane image and is a qualitative change. The technology for realizing naked eye 3D display mainly includes two technologies, namely, light barrier type and cylindrical lens type (also called micro cylindrical lens type), and the latter does not affect the screen brightness as the former does, so the display effect of the cylindrical lens technology is better. The lenticular 3D technique positions the image plane of the liquid crystal screen at the focal plane of the lens so that the pixels of the image beneath each lenticular lens are divided into several sub-pixels, and the lens can project each sub-pixel in a different direction. The eyes then see different sub-pixels from different angles.
The naked eye 3D display device adopting the cylindrical lens 3D technology utilizes the characteristic that two eyes of a person have parallax error to obtain a display system with vivid images of space and depth. The naked eye stereoscopic image is deeply favored by consumers due to the real and vivid expressive force, the environment infectivity and the strong shocking visual impact.
However, in the naked-eye 3D display device adopting the lenticular 3D technology in the prior art, there is a strict spatial position relationship between the column pixels of the liquid crystal panel and the lenticular array film. The strict spatial position relation firstly means that the relative positions of the pixels of the liquid crystal screen and the cylindrical lens array membrane in the transfer and rotation directions are fixed; secondly, the two surfaces of the liquid crystal screen surface and the focal plane of the cylindrical lens array membrane are parallel and keep a certain distance. According to the existing technical scheme, the distance between the surface of the liquid crystal screen and the focal plane of the cylindrical lens array diaphragm is mostly adjusted and controlled by controlling the thickness of the transition glass sheet, and the high-quality naked eye 3D visual effect can be obtained only when the thickness of the transition glass sheet reaches 8mm or even 10 mm. The thick transition glass sheet increases the weight of the naked-eye 3D display device, which causes inconvenience in the production process and even in the use by the user. In addition, the physical size of the single pixel and the cylindrical lens array is extremely small, so if a small deviation exists in installation, the transmission path of emergent light can be changed, and the independent visual area is deformed to seriously influence the stereoscopic display effect. Moreover, the relative position and the sight angle of the optical device cannot be accurately adjusted by adopting naked eyes for assembly, and the mechanical precision of installation is difficult to determine; and the instruments dedicated to assembly are very expensive. In order to realize the permanent fixation of the column pixel and cylindrical lens array diaphragm assembly and reduce the assembly cost, a naked eye 3D display device with high assembly efficiency, low cost and light weight and an assembly method thereof are needed.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a naked eye 3D display device, including: a liquid crystal display screen; the transition glass sheet is arranged on one side of the light emergent surface of the liquid crystal display screen; a glue layer comprising a substrate; the micro-cylinder lens array membrane is flat on one side close to the transition glass sheet, and comprises a plurality of parallel micro-cylinder lens arrays on one side far away from the transition glass sheet; the adhesive layer containing the substrate is arranged on the flat side of the micro-cylindrical lens array membrane; and the fly-eye lens array diaphragm is arranged on any side of the micro-cylindrical lens array diaphragm, the fly-eye lens array diaphragm comprises a plurality of fly-eye lens arrays, and an image formed by the micro-cylindrical lens array diaphragm is superposed with the focus of the fly-eye lens.
In one embodiment, the fly-eye lens array sheet is disposed on a flat side of the micro-cylinder lens array sheet, and the adhesive layer containing a substrate is disposed between the micro-cylinder lens array sheet and the fly-eye lens array sheet.
In another embodiment, the fly-eye lens array membrane is disposed on a flat side of the micro-cylinder lens array membrane and between the adhesive layer containing the substrate and the micro-cylinder lens array membrane.
In yet another embodiment, the fly-eye lens array membrane is disposed on a side of the micro-cylinder lens array membrane having micro-cylinder lenses.
In one embodiment, the thickness of the transition glass sheet is selected such that the focal plane of the micro-cylindrical lens coincides with the image plane of the liquid crystal display screen.
In one embodiment, the calculation formula of the array parameters of the micro-cylindrical lens is as follows:
N=m×3／4；
D=（0.1~0.9）×R；
wherein, N is the number of the micro-cylindrical lenses, m is the number of the pixel columns of the liquid crystal display screen, D is the width of the micro-cylindrical lenses, and R is the curvature radius of the micro-cylindrical lenses.
In one embodiment, the curvature radius of the micro-cylindrical lenses in the micro-cylindrical lens array membrane is 100 μm to 1mm, the width of the micro-cylindrical lenses is 10 μm to 100 μm, and the height of the micro-cylindrical lenses is 1 μm to 100 μm.
In one embodiment, the curvature radius of the fly-eye lens in the fly-eye lens array film is 100 μm to 1mm, the width of the fly-eye lens is 10 μm to 100 μm, and the height of the fly-eye lens is 1 μm to 100 μm.
In one embodiment, the micro-cylinder lens array membrane is made of polycarbonate or polymethyl methacrylate.
In one embodiment, the fly-eye lens array membrane is made of polycarbonate or polymethyl methacrylate.
The naked eye 3D display device is high in assembly efficiency and low in cost, and crosstalk damage of the device is effectively reduced. In addition, the invention provides that a fly-eye lens array diaphragm is added in the naked eye 3D display device, and the focusing function of the fly-eye lens array diaphragm is utilized to shorten the light path between the liquid crystal screen and the cylindrical lens array diaphragm so as to reduce the thickness of the transition glass sheet and obtain the naked eye 3D display device with high assembly efficiency, low cost and light weight.
Drawings
Fig. 1 is a schematic structural diagram of a naked-eye 3D display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a naked-eye 3D display device according to another embodiment of the present invention;
FIG. 3 is a flow chart illustrating the preparation of a micro-cylinder lens array membrane according to an embodiment of the present invention;
fig. 4 is a flowchart of the preparation of a fly-eye lens array patch according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention provides a naked eye 3D display device, which comprises a liquid crystal display screen 1, a transition glass sheet 2, an adhesive layer 3 containing a substrate, a micro-cylindrical lens array membrane 4 and a fly-eye lens array membrane 5, which are arranged in sequence. The micro-cylinder lens array membrane 4 is flat on one side and comprises an array of a plurality of parallel micro-cylinder lenses on the other side, and the image is divided through a refraction angle determined by the size of the curvature radius of the curved surface of the cylinder lens through condensation imaging.
Transition glass piece 2 sets up in liquid crystal display 1's play plain noodles one side, transition glass piece 2 keep away from liquid crystal display 1 one side with laminate through the rubber coating 3 that contains the substrate between the flat side of microlens array diaphragm 4, the optical axis of microlens array diaphragm 4 is parallel with liquid crystal display 1's row pixel, fly's eye lens array diaphragm 5 set up in one side that has the microlens of microlens array diaphragm 4.
In the present embodiment, the liquid crystal display panel 1 includes: fluorescent tubes, light guide plates, vertical and horizontal polarizers, color filters, conductive glass substrates, alignment films with fine grooves, liquid crystal materials, thin film transistors, and the like. When the liquid crystal material is placed between two pieces of transparent conductive glass attached with optical axis vertical polarizing plate, the liquid crystal molecules will be arranged in turn according to the direction of the fine groove of the alignment film, if the electric field is not formed, the light will be smoothly emitted from the polarizing plate, and the light will be emitted from the other side according to the traveling direction of the liquid crystal molecules. After the two pieces of conductive glass are electrified, an electric field can be generated between the two pieces of conductive glass, so that the arrangement of liquid crystal molecules between the two pieces of conductive glass is influenced, the molecular rods are twisted, light cannot penetrate through the molecular rods, and a light source is shielded, so that the phenomenon of light-dark contrast is obtained. After passing through the filter plate and the liquid crystal material, the light source enters the color filter film and the other polarizer, the light intensity and the color which finally appear can be controlled by changing the voltage value of the stimulating liquid crystal material, and then the color combination with different shades is changed on the liquid crystal panel.
The liquid crystal display screen can be the conventional liquid crystal display screen, and can be selected according to the size of the expected display image, the resolution of the image and the strength of the stereoscopic impression of the image.
Optical glass sheets are used as the transparent transition layer of the naked-eye 3d display device of the present invention. The position of the focus of the cylindrical lens can be changed by adjusting the thickness of the transition glass sheet 2, and the coincidence of the focal plane of the micro cylindrical lens and the image plane of the liquid crystal display screen is realized. And the fine adjustment of the relative position between the focal plane of the micro-cylindrical lens and the image plane of the liquid crystal display screen can be realized by adjusting the substrate in the glue layer 3 between the transition glass sheet 2 and the micro-cylindrical lens array membrane 4.
The calculation formula of the micro-cylindrical lens array parameters is as follows:
N=m×3／4；
D=（0.1~0.9）×R。
wherein, N is the number of the micro-cylindrical lenses, m is the number of the pixel columns of the liquid crystal display screen, D is the width of the micro-cylindrical lenses, and R is the curvature radius of the micro-cylindrical lenses.
In one embodiment, the curvature radius R of the micro-cylindrical lenses in the micro-cylindrical lens array membrane 4 is 100 μm to 1mm, the width D of the micro-cylindrical lenses is 10 μm to 100 μm, and the height h of the micro-cylindrical lenses is 1 μm to 100 μm.
In one embodiment, the curvature radius R ' of the fly-eye lens in the fly-eye lens array film 5 is 100 μm to 1mm, the width D ' of the fly-eye lens is 10 μm to 100 μm, and the height h ' of the fly-eye lens is 1 μm to 100 μm. The image formed by the micro-cylindrical lens array membrane 4 coincides with the focus of the fly-eye lens.
According to the invention, the fly-eye lens is adopted, so that on one hand, the assembly efficiency of the naked eye 3D display device is improved, and on the other hand, the crosstalk hazard of the naked eye 3D display device is reduced.
In another embodiment of the present invention, as shown in fig. 2, the fly-eye lens array film layer 203 may also be disposed to be located at the other side of the micro-cylinder lens array film layer 201, i.e., the side close to the liquid crystal display 204 and the transition glass sheet (the transition glass sheet is not shown in fig. 2). A glue layer 202 containing a substrate can be disposed between the micro-cylindrical lens array membrane layer 201 and the fly-eye lens array membrane layer 203; alternatively, in another embodiment, fly-eye lens array film layer 203 may also be disposed between glue layer 202 containing the substrate and micro-cylindrical lens array film layer 201. In general, there is a blurring problem in information transfer without a fly-eye lens. The glue layer 202 containing the substrate can bring noise, and the larger the thickness is, the more serious the crosstalk is; furthermore, the thicker the transition glass sheet, the more phase dispersion.
In combination with the above three embodiments, the fly-eye lens array film layer 5 or 203 is added, no matter 3D is imaged on the focal plane of the micro-cylinder lens array film layer 4 or 201 first, and then imaged on the fly-eye lens array film layer 5 or 203; or 3D imaging is carried out on the fly-eye lens array membrane layer 5 or 203, and then imaging is carried out on a focal plane on the micro-column lens array membrane layer 4 or 201; the fly-eye lens array membrane layer 5 or 203 can carry out secondary processing on the image, carry out secondary coding and compensate the phase difference of the image formed by the emergent micro-column lens array membrane layer, and reduce crosstalk.
The device of the invention thus reduces the requirements on the mounting accuracy, so that the mounting efficiency can be increased during assembly.
In the embodiment of the present invention, the process for preparing the micro-cylinder lens array membrane 4 is shown in fig. 3. Designing and simulating characteristic parameters of the micro-cylindrical lens array by adopting VirtualLab software; preparing a micro-cylindrical lens array mould by a single-point diamond turning technology, wherein the mould material is one of brass, copper, steel and the like, the shape error of the prepared mould is within 10nm, and the surface roughness is less than or equal to 2 nm; preparing a micro-cylindrical lens array element by using an injection molding machine, wherein the element material is one of Polycarbonate (PC for short), polymethyl methacrylate (PMMA) and the like; and testing the optical element by a scanning electron microscope and building an optical characteristic testing platform.
In the embodiment of the present invention, the fly-eye lens array sheet 5 is prepared by the process shown in fig. 4. Designing and simulating characteristic parameters of the fly-eye lens array by adopting a matching program, wherein the design is carried out on the basis of strict spatial position relation and small installation deviation between column pixels of the liquid crystal screen and a micro-cylindrical lens array membrane; preparing a fly-eye lens array mould by a single-point diamond turning technology, wherein the mould material is one of brass, copper, steel and the like, the shape error of the prepared mould is within 10nm, and the surface roughness is less than or equal to 2 nm; preparing a fly-eye lens array element by using an injection molding machine, wherein the element material is one of Polycarbonate (PC for short), polymethyl methacrylate (PMMA) and the like; and testing the optical element by a scanning electron microscope and building an optical characteristic testing platform.
The present invention has been illustrated by the above examples, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080471.8A CN107991782B (en) | 2017-11-06 | 2017-11-06 | Naked eye 3D display device |
| HK18114107.1A HK1252602A2 (en) | 2017-11-06 | 2018-11-05 | Glasses-free 3d display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080471.8A CN107991782B (en) | 2017-11-06 | 2017-11-06 | Naked eye 3D display device |
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| CN107991782A CN107991782A (en) | 2018-05-04 |
| CN107991782B true CN107991782B (en) | 2021-01-05 |
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| CN201711080471.8A Active CN107991782B (en) | 2017-11-06 | 2017-11-06 | Naked eye 3D display device |
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| HK (1) | HK1252602A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112445006A (en) * | 2020-09-28 | 2021-03-05 | 南京工程学院 | Irregular diamond lens array capable of realizing 2D/3D on-screen display and preparation method |
| CN115113416B (en) * | 2022-07-22 | 2023-08-25 | 吉林省钜鸿智能技术有限公司 | An outdoor naked-eye 3D display |
| CN115657311B (en) * | 2022-11-01 | 2025-07-29 | 福耀玻璃工业集团股份有限公司 | Glass and vehicle capable of luminous display |
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| CN102933992A (en) * | 2010-11-25 | 2013-02-13 | 日东电工株式会社 | Optical laminate and liquid crystal display device |
| CN103477251A (en) * | 2011-04-12 | 2013-12-25 | 松浪硝子工业株式会社 | Lens array sheet |
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| Publication number | Publication date |
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| CN107991782A (en) | 2018-05-04 |
| HK1252602A2 (en) | 2019-05-31 |
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