CN109814755A - A kind of anti-light display touch screen of 4K ultra high-definition - Google Patents
A kind of anti-light display touch screen of 4K ultra high-definition Download PDFInfo
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- CN109814755A CN109814755A CN201910055713.0A CN201910055713A CN109814755A CN 109814755 A CN109814755 A CN 109814755A CN 201910055713 A CN201910055713 A CN 201910055713A CN 109814755 A CN109814755 A CN 109814755A
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- material film
- electrochromic material
- blank
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- telescopic rod
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Abstract
The invention discloses a kind of anti-light display touch screens of 4K ultra high-definition, surface bonding Fresnel anti-light mould of the present invention in electronic whiteboard, because the anti-light mould of Fresnel uses special optical broached-tooth design, user will not be influenced under a bright ambient environment watches image quality quality, so having the interference of environment resistant light, the advantages of increasing contrast, realize electronic whiteboard when high definition projects, reach the best visual effect, has the function of multi-point touch simultaneously, it is worked when showing under the poor environments such as strong light, the inside of electronic touch blank 3 is additionally provided with automatically controlled toning component, the surface color of electronic touch blank can be adjusted in automatically controlled toning component, so that it becomes dark-coloured or increased grey of gray scale etc., to adapt to the influence of varying strength illumination, improve image display quality.
Description
Technical field
The present invention relates to touch screen technical field, specifically a kind of anti-light display touch screen of 4K ultra high-definition.
Background technique
The working principle of infrared touch panel is to be covered with infrared receiving tube and infrared transmitting tube in the surrounding of touch screen, these are red
Outer tube is in one-to-one positional relationship in the surface alignment of touch screen, formed one by infrared ray cloth at light net, when there is object
Body (can be finger, the hand with gloves or any touching object) enters the infrared ray transmitter and receiver that infrared light net stops somewhere
When, the power for the infrared ray that the reception infrared tube of the vertical and horizontal both direction of this point receives will change, and equipment passes through
The variation for solving the reception condition of infrared ray just can know where is touched.Its using light encounter finger generation reflection come
Correct position is grabbed, can be integrated into projector or liquid crystal display panel, and combines the identification techniques such as gesture, Freehandhand-drawing track, as in,
Large scale interactive teaching, mouse action, Games manipulation and presentation function.Multi-user can be allowed to enjoy interactive experience jointly, be
The indoor and outdoor displaying of a fashion, converter tools.Currently, constantly improve with function, touch-control electronic blank even has mutually
Many specific functions such as dynamic function, camera function, export, printing, zoom are the necessary tools such as present teaching, demonstration.
Since infrared touch panel has long service life, stabilization without a system such as drift, oil-stain-preventing, scratch resistant, waterproof, anti-interference
The incomparable advantage of other touch screens is arranged, application is increasingly valued by people.But not with ultra high-definition technology
Disconnected development, ultra high-definition touch-control show and are also gradually applied that ultra high-definition touch-control shows that the requirement to various performances is also higher, especially
It is anti-light ability, more stringent requirements are proposed for anti-light ability, sensory effects etc. for ultra high-definition.
Therefore, the present invention provides a kind of anti-light display touch screens of 4K ultra high-definition, to solve to propose in above-mentioned background technique
The problem of.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-light display touch screens of 4K ultra high-definition, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of anti-light display touch screen of 4K ultra high-definition, including the touching of 4K ultra high-definition laser-projector, installation and adjustment component, electronics
It controls blank, protective cover and fastens limit assembly, wherein the back side of the electronic touch blank is provided with the installation and adjustment group
Part, to be mounted on position to be installed using the installation and adjustment component adjustable position；
It is detachably hinged in positive a side of the electronic touch blank to be provided with the protective cover, the protection
Cover can fasten the face side for being connected to the electronic touch blank of locking using the fastening limit assembly；
The high definition projector is mounted on the front of the electronic touch blank, and the electronic touch blank is infrared touching
Control electronic whiteboard, which is characterized in that
The surface bonding of the electronic touch blank is provided with the anti-light mould of Fresnel, and the surface of the anti-light mould of Fresnel is set
It is equipped with optics broached-tooth design, in the environment resistant optical property to improve electronic touch blank；
The inside of the electronic touch blank is additionally provided with automatically controlled toning component, and the automatically controlled toning component can be to electronics
The surface color of touch-control blank is adjusted, to adapt to the influence of varying strength illumination.
As a further solution of the present invention: the automatically controlled toning component includes the first electrochromic material film, second
Electrochromic material film, third electrochromic material film and discoloration electric controller, wherein first electrochromic material is thin
Film, the second electrochromic material film, third electrochromic material film successively stick folded setting along thickness direction, and described the
One electrochromic material film, the second electrochromic material film are provided with different densities in third electrochromic material film
Electroluminescent change material pigment, and close to the density ratio of the electroluminescent change material pigment of the side of the anti-light mould of the Fresnel far from described
The density of the electroluminescent change material pigment of the side of the anti-light mould of Fresnel is small, and it is electroluminescent to control described first by the discoloration electric controller
The color change of off-color material film, the second electrochromic material film and third electrochromic material film realizes electronic touch
The adjusting of the surface color of blank, to adapt to the influence of varying strength illumination.
As a further solution of the present invention: the first electrochromic material film, the second electrochromic material film
It can be changed with the color of third electrochromic material film and turn to transparent color.
As a further solution of the present invention: the electronic touch blank further includes support baseboard layer, shockproof control layer, half
Hyaline layer, hyaline layer and adhesive layer, wherein the side of the support baseboard layer is provided with shockproof control layer, and the discoloration is automatically controlled
Device is arranged in the shockproof control layer, and first electrochromism is arranged between the shockproof control layer and the semitransparent layer
Material film, the second electrochromic material film, third electrochromic material film, the side setting of the semitransparent layer is
Hyaline layer is stated, the anti-light mould of Fresnel is arranged using adhesive layer bonding in the side of the hyaline layer.
As a further solution of the present invention: the first electrochromic material film, the second electrochromic material film,
The respective electroluminescent change material pigment structure of third electrochromic material film is set as discoloration lattice array, and entirely change colour lattice array
Color change is controlled by the discoloration electric controller.
As a further solution of the present invention: the fastening limit assembly includes the first fixed block, the second fixed block and limit
Position kelly, wherein the upper surface of the electronic touch blank is affixed, and there are two the first fixed block, the inside of first fixed block
Card slot is offered, the front surface edge of the shell of the protective cover is bonded with sealing ring, and the lower surface of shell is from left to right
Successively affixed there are two the second fixed blocks, and the front surface of second fixed block is affixed, and there are two limit kelly, the limiting card
Bar is adapted with card slot, and limits the component that kelly is plastic material, and the limit kelly is cylindric.
As a further solution of the present invention: the installation and adjustment component includes two adjusting rods, and the electronic touch is white
The rear surface of plate is from top to bottom successively connected with described two adjusting rods, the adjusting rod include the first screw hole, the first telescopic rod,
Support rod, the second telescopic rod and the second screw hole, being internally embedded for the support rod is equipped with the first telescopic rod, and support rod is interior
Portion is embedded at one side position of the first telescopic rod and is equipped with the second telescopic rod, the back side of the support rod and electronic touch blank
It is bolted to connection, the inside of first telescopic rod offers the first screw hole, and the inside of second telescopic rod opens up
There is the second screw hole.
As a further solution of the present invention: the side wall of the electronic touch blank offers radiator window.
As a further solution of the present invention: the support rod is slidably connected with the first telescopic rod, and support rod and second
Telescopic rod is slidably connected, and first telescopic rod and the second telescopic rod are the component of alloy steel.
As a further solution of the present invention: the transparent configuration with a thickness of 0.5-3mm of the anti-light film.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is in the anti-light mould of surface bonding Fresnel, because the anti-light mould of Fresnel uses special optical broached-tooth design,
User will not be influenced under bright environment and watches image quality quality, so having the interference of environment resistant light, increase the excellent of contrast
Point realizes that electronic whiteboard when high definition projects, reaches the best visual effect, while having the function of multi-point touch.
2, also automatically controlled toning component is arranged in the inside of electronic touch blank in the present invention, and automatically controlled toning component can be to electronics
The surface color of touch-control blank is adjusted, to adapt to the influence of varying strength illumination, in this manner it is ensured that showing under strong light
Effect, improve high definition performance, meanwhile, be arranged different densities electroluminescent change material pigment composition the first electrochromic material it is thin
Film, the second electrochromic material film, third electrochromic material film, in this manner it is achieved that control and the tune of different colours
Section realizes the display effect of electronic touch blank.
3, the first electrochromic material film of the invention, the second electrochromic material film, third electrochromic material
The electroluminescent change material pigment of film realizes the gradual change of background color using staggered arrangement convenient for the comprehensive adjustment of different colours
With fine tuning, guarantee the high definition display performance of electronic touch blank；
4, the present invention can be convenient by protective cover blocks the surface of electronic touch blank, on the one hand can play
On the other hand dust-proof effect can reduce external force and cause to damage to electronic touch whiteboard surface, improve electronic touch blank
Security performance；It can be convenient user according to actual needs by adjusting rod to adjust the first telescopic rod and the second telescopic rod
Position facilitates the later period to carry out actual installation to electronic touch blank.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the anti-light display touch screen of 4K ultra high-definition；
Fig. 2 is the first telescopic rod mounting structure schematic diagram in a kind of anti-light display touch screen of 4K ultra high-definition；
Fig. 3 is the adjusting rod structural schematic diagram in a kind of anti-light display touch screen of 4K ultra high-definition；
Fig. 4 is a kind of schematic cross-sectional view of the electronic touch blank of the anti-light display touch screen of 4K ultra high-definition；
Fig. 5 is the first electrochromic material film, the second electrochromism material of a kind of anti-light display touch screen of 4K ultra high-definition
Expect the structural schematic diagram of film, third electrochromic material film.
Specific embodiment
Please refer to Fig. 1~5, in the embodiment of the present invention, a kind of anti-light display touch screen of 4K ultra high-definition, including 4K ultra high-definition swash
Light projector, installation and adjustment component, electronic touch blank 3, protective cover 6 and fastening limit assembly, wherein the electronic touch is white
The back side of plate 3 is provided with the installation and adjustment component, so as to using the installation and adjustment component adjustable position be mounted on to
Installation site；
It is detachably hinged in positive a side of the electronic touch blank 3 to be provided with the protective cover 6, the guarantor
Shield 6 can fasten the face side for being connected to the electronic touch blank 3 of locking using the fastening limit assembly；Pass through protection
Cover 6, which can be convenient, blocks the surface of electronic touch blank 3, on the one hand can play dust-proof effect, on the other hand may be used
It causes to damage to reduce external force to 3 surface of electronic touch blank, improves the security performance of electronic touch blank 3；
The high definition projector is mounted on the front of the electronic touch blank 3, and the electronic touch blank 3 is infrared
Touch-control electronic blank, which is characterized in that
The surface bonding of the electronic touch blank 3 is provided with the anti-light mould 17 of Fresnel, the anti-light mould 17 of Fresnel
Surface is provided with optics broached-tooth design 18, in the environment resistant optical property to improve electronic touch blank；
The inside of the electronic touch blank 3 is additionally provided with automatically controlled toning component 22, and the automatically controlled toning component can be right
The surface color of electronic touch blank is adjusted, to adapt to the influence of varying strength illumination.
In the present embodiment, the automatically controlled toning component 22 includes the first electrochromic material film 26, the second electroluminescent change
Color material film 27, third electrochromic material film 28 and discoloration electric controller, wherein the first electrochromic material film
26, the second electrochromic material film 27, third electrochromic material film 28 successively stick folded setting, and institute along thickness direction
State setting in the first electrochromic material film 26, the second electrochromic material film 27, third electrochromic material film 28
There is the electroluminescent change material pigment 23 of different densities, and close to the close of the electroluminescent change material pigment of the side of the anti-light mould of the Fresnel
The density for spending the electroluminescent change material pigment of the side of mould more anti-light than the separate Fresnel is small, passes through the discoloration electric controller and controls
The color change of the first electrochromic material film, the second electrochromic material film and third electrochromic material film
The adjusting of the surface color of electronic touch blank is realized, to adapt to the influence of varying strength illumination.
As preferred embodiment, the first electrochromic material film, the second electrochromic material film and third
The color of electrochromic material film is variable to turn to transparent color.
Wherein, the electronic touch blank further include support baseboard layer 25, it is shockproof control layer 24, semitransparent layer 21, transparent
Layer 20 and adhesive layer 19, wherein the side of the support baseboard layer 25 is provided with shockproof control layer 24, the discoloration electric controller cloth
It sets in the shockproof control layer 24, the described first electroluminescent change is set between the shockproof control layer 24 and the semitransparent layer 21
Color material film 26, the second electrochromic material film 27, third electrochromic material film 28, the one of the semitransparent layer 21
Side is provided with the hyaline layer 20, and the side of the hyaline layer 20 is anti-light using the adhesive layer 19 bonding setting Fresnel
Mould 17.
As more preferably embodiment, the first electrochromic material film 26, the second electrochromic material film 27,
Respective electroluminescent 23 structure of change material pigment of three electrochromic material films 28 is set as discoloration lattice array, and entirely change colour dot matrix
Column control color change by the discoloration electric controller.
In addition, in the present invention, the fastening limit assembly includes the first fixed block 2, the second fixed block 9 and limit kelly
8, wherein the upper surface of the electronic touch blank 3 is affixed, and there are two the first fixed blocks 2, and the inside of first fixed block 2 is opened
Equipped with card slot 1, the front surface edge of the shell 10 of the protective cover 6 is bonded with sealing ring 7, and the lower surface of shell 10 is by a left side
To right successively affixed there are two the second fixed block 9, the front surface of second fixed block 9 is affixed there are two limiting kelly 8, described
Limit kelly 8 is adapted with card slot 1, and limits the component that kelly 8 is plastic material, and the limit kelly 8 is cylindric.
The installation and adjustment component include two adjusting rods 14, the rear surface of the electronic touch blank 3 from top to bottom according to
Secondary to be connected with described two adjusting rods 14, the adjusting rod 14 includes the first screw hole 15, the first telescopic rod 5, support rod 13, second
Telescopic rod 12 and the second screw hole 16, being internally embedded for the support rod 13 are equipped with the first telescopic rod 5, and the inside of support rod 13
Insertion is equipped with the second telescopic rod 12, the support rod 13 and electronic touch blank 3 at 5 one side position of the first telescopic rod
The back side is bolted to connection, and the inside of first telescopic rod 5 offers the first screw hole 15, second telescopic rod 12
Inside offers the second screw hole 16, can be convenient user according to actual needs by adjusting rod 14 to adjust the first telescopic rod 5
With the position of the second telescopic rod 12, the later period is facilitated to carry out actual installation to electronic touch blank 3.
The side wall of the electronic touch blank 3 offers radiator window 11.The support rod 13 and the sliding of the first telescopic rod 5 connect
It connects, and support rod 13 is slidably connected with the second telescopic rod 12, first telescopic rod 5 and the second telescopic rod 12 are alloy steel products
The component of matter.The transparent configuration with a thickness of 0.5-3mm of the anti-light film 4.
The working principle of the invention is: when electronic touch blank 3 needs to install, user is by the first telescopic rod 5 at this time
It moves right, the second telescopic rod 12 is moved to the left, be respectively put into the first screw hole 15 after moving to the appropriate position, then by bolt
It fastening in the second screw hole 16, and by bolt and metope or mounting surface, electronic touch blank 3 is fixed at this time,
It can be convenient user according to actual needs by adjusting rod 14 to adjust the position of the first telescopic rod 5 and the second telescopic rod 12,
The later period is facilitated to carry out actual installation, the 3 anti-light mould of surface bonding Fresnel of electronic touch blank, Yin Feinie to electronic touch blank 3
You use special optical broached-tooth design by anti-light mould, will not influence user under a bright ambient environment and watch image quality quality, so
The advantages of interfering with environment resistant light, increasing contrast realizes that electronic whiteboard when high definition projects, reaches the best visual effect,
Have the function of multi-point touch simultaneously, so that the content that electronic touch blank 3 is shown is clearer, while also reducing light pair
It is injured caused by human eyeball, after 3 use of electronic touch blank, shell 10 is flipped up by user at this time, and will limit
Position kelly 8 snaps into card slot 1, since the outside of limit kelly 8 is fixedly attached restraining position ring block, so when stop collar and card slot 1
It consolidating after engaging, limit kelly 8 is made to be not easy to slide, sealing ring 7 is tightly bonded with the surface of electronic touch blank 3 at this time,
And then shell 10 is consolidated, and be can be convenient by protective cover 6 and is blocked to the surface of electronic touch blank 3, on the one hand may be used
To play dust-proof effect, it on the other hand can reduce external force and 3 surface of electronic touch blank is caused to damage, improve electronics touching
Control the security performance of blank 3.It is worked when showing under the poor environments such as strong light, the inside of electronic touch blank 3 is additionally provided with electricity
Control colour cell part 22, the surface color of electronic touch blank can be adjusted in the automatically controlled toning component, so that it becomes secretly
Color or the increased grey of gray scale etc. improve image display quality to adapt to the influence of varying strength illumination.
It is above-described, it is merely preferred embodiments of the present invention, but protection scope of the present invention is not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention
And its inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of anti-light display touch screen of 4K ultra high-definition, including 4K ultra high-definition projector, installation and adjustment component, electronic touch blank
(3), protective cover (6) and fastening limit assembly, wherein the back side of the electronic touch blank (3) is provided with the installation and adjustment
Component, to be mounted on position to be installed using the installation and adjustment component adjustable position；
It is detachably hinged in positive a side of the electronic touch blank (3) to be provided with the protective cover (6), the guarantor
Shield (6) can fasten the face side for being connected to the electronic touch blank (3) of locking using the fastening limit assembly；
The high definition projector is mounted on the front of the electronic touch blank (3), and the electronic touch blank (3) is infrared
Touch-control electronic blank, which is characterized in that
The surface bonding of the electronic touch blank (3) is provided with the anti-light mould of Fresnel (17), the anti-light mould of Fresnel (17)
Surface be provided with optics broached-tooth design (18), in the environment resistant optical property to improve electronic touch blank；
The inside of the electronic touch blank (3) is additionally provided with automatically controlled toning component (22), and the automatically controlled toning component can be right
The surface color of electronic touch blank is adjusted, to adapt to the influence of varying strength illumination.
2. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 1, which is characterized in that the automatically controlled toning group
Part (22) includes the first electrochromic material film (26), the second electrochromic material film (27), third electrochromic material
Film (28) and discoloration electric controller, wherein the first electrochromic material film (26), the second electrochromic material film
(27), third electrochromic material film (28) successively sticks folded setting, and first electrochromic material along thickness direction
Different densities are provided in film (26), the second electrochromic material film (27), third electrochromic material film (28)
Electroluminescent change material pigment (23), and close to the density ratio of the electroluminescent change material pigment of the side of the anti-light mould of the Fresnel far from institute
The density for stating the electroluminescent change material pigment of the side of the anti-light mould of Fresnel is small, controls first electricity by the discoloration electric controller
The color change of mutagens color material film, the second electrochromic material film and third electrochromic material film realizes electronics touching
The adjusting of the surface color of blank is controlled, to adapt to the influence of varying strength illumination.
3. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 2, which is characterized in that the first electroluminescent change
The color of color material film, the second electrochromic material film and third electrochromic material film is variable to turn to transparent face
Color.
4. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 2, which is characterized in that the electronic touch is white
Plate further includes support baseboard layer (25), shockproof control layer (24), semitransparent layer (21), hyaline layer (20) and adhesive layer (19),
In, the side of the support baseboard layer (25) is provided with shockproof control layer (24), and the discoloration electric controller is arranged in the damping
In control layer (24), first electrochromic material is set between the shockproof control layer (24) and the semitransparent layer (21)
Film (26), the second electrochromic material film (27), third electrochromic material film (28), the semitransparent layer (21)
Side is provided with the hyaline layer (20), and the phenanthrene is arranged using the adhesive layer (19) bonding in the side of the hyaline layer (20)
The anti-light mould of Nie Er (17).
5. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 2, which is characterized in that the first electroluminescent change
Color material film (26), the second electrochromic material film (27), third electrochromic material film (28) it is respective described
Electroluminescent change material pigment (23) structure is set as discoloration lattice array, and the entire lattice array that changes colour is become by discoloration electric controller control color
Change.
6. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 1, which is characterized in that the fastening limit group
Part includes the first fixed block (2), the second fixed block (9) and limit kelly (8), wherein the upper table of the electronic touch blank (3)
Face is affixed there are two the first fixed block (2), and the inside of first fixed block (2) offers card slot (1), the protective cover (6)
The front surface edge of shell (10) be bonded with sealing ring (7), and the lower surface of shell (10) is successively connected with from left to right
Two the second fixed blocks (9), the front surface of second fixed block (9) is affixed, and there are two limit kelly (8), the limit kellies
(8) it is adapted with card slot (1), and limits the component that kelly (8) are plastic material, the limit kelly (8) is cylindric.
7. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 1, which is characterized in that the installation and adjustment group
Part includes two adjusting rods (14), and the rear surface of the electronic touch blank (3) is from top to bottom successively connected with described two tune
Pole (14), the adjusting rod (14) include the first screw hole (15), the first telescopic rod (5), support rod (13), the second telescopic rod
(12) it is equipped with the first telescopic rod (5) with the second screw hole (16), being internally embedded for the support rod (13), and support rod (13)
Internal be embedded at (5) one side position of the first telescopic rod is equipped with the second telescopic rod (12), the support rod (13) and electronics
The back side of touch-control blank (3) is bolted to connection, and the inside of first telescopic rod (5) offers the first screw hole (15),
The inside of second telescopic rod (12) offers the second screw hole (16).
8. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 7, which is characterized in that the electronic touch is white
The side wall of plate (3) offers radiator window (11).
9. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 7, which is characterized in that the support rod (13)
It is slidably connected with the first telescopic rod (5), and support rod (13) is slidably connected with the second telescopic rod (12), first telescopic rod
(5) and the second telescopic rod (12) be alloy steel component.
10. the anti-light display touch screen of a kind of 4K ultra high-definition according to claim 1, which is characterized in that the anti-light film (4)
The transparent configuration with a thickness of 0.5-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055713.0A CN109814755B (en) | 2019-01-21 | 2019-01-21 | Clear anti optical display touch-control screen of 4K superelevation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055713.0A CN109814755B (en) | 2019-01-21 | 2019-01-21 | Clear anti optical display touch-control screen of 4K superelevation |
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| Publication Number | Publication Date |
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| CN109814755A true CN109814755A (en) | 2019-05-28 |
| CN109814755B CN109814755B (en) | 2021-11-19 |
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| CN201910055713.0A Active CN109814755B (en) | 2019-01-21 | 2019-01-21 | Clear anti optical display touch-control screen of 4K superelevation |
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| CN206557744U (en) * | 2017-03-19 | 2017-10-13 | 上海智典文具有限公司 | A kind of multimedia touch-control blank |
| CN107561847A (en) * | 2017-10-20 | 2018-01-09 | 成都恒坤光显材料科技有限公司 | A kind of ultrashort burnt screen of the new orthographic projection of high-gain |
| CN208367392U (en) * | 2018-05-23 | 2019-01-11 | 广州奥翼电子科技股份有限公司 | Optical element, display device and electronic equipment |
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|---|---|---|---|---|
| US20130278631A1 (en) * | 2010-02-28 | 2013-10-24 | Osterhout Group, Inc. | 3d positioning of augmented reality information |
| KR20120057487A (en) * | 2010-11-26 | 2012-06-05 | 제이 터치 코퍼레이션 | Touch control electrochromic device |
| CN102109935A (en) * | 2011-03-30 | 2011-06-29 | 中山佳时光电科技有限公司 | Infrared positioning system and method |
| CN203013148U (en) * | 2012-12-04 | 2013-06-19 | 常州普适信息科技有限公司 | Novel display |
| CN206557744U (en) * | 2017-03-19 | 2017-10-13 | 上海智典文具有限公司 | A kind of multimedia touch-control blank |
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| Publication number | Publication date |
|---|---|
| CN109814755B (en) | 2021-11-19 |
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