CN109188848A - Positive throwing short focus projection screen with touch-control - Google Patents
Positive throwing short focus projection screen with touch-control Download PDFInfo
- Publication number
- CN109188848A CN109188848A CN201811364752.0A CN201811364752A CN109188848A CN 109188848 A CN109188848 A CN 109188848A CN 201811364752 A CN201811364752 A CN 201811364752A CN 109188848 A CN109188848 A CN 109188848A
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- CN
- China
- Prior art keywords
- layer
- touch
- control
- projection screen
- short focus
- 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.)
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/602—Lenticular screens
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
Abstract
The present invention relates to short focus projection art, providing a kind of positive throwing short focus projection screen with touch-control including anti-scratch layer, coloring layer, diffusion layer, Fresnel Lenses layer, reflecting layer and the light-absorption layer set gradually further includes touch-control structure；Touch-control structure includes the upper electrode layer, insulating layer and lower electrode layer set gradually.Whereby, the present invention passes through anti-scratch layer, coloring layer, diffusion layer, Fresnel Lenses layer, reflecting layer and the light-absorption layer set gradually, further includes touch-control structure.Touch-control structure includes the upper electrode layer, insulating layer and lower electrode layer set gradually.By combination of touch control structure, projection screen is made to have touch function.Compared to conventional infrared touch technology, there is high precision and fast response, and do not influence the advantage of border structure.
Description
Technical field
The present invention relates to short focus projection art more particularly to a kind of positive throwing short focus projection screens with touch-control.
Background technique
The screen that existing projector uses is largely front projection curtain cloth, i.e., projector is placed in front of screen, by
Light is reflected into human eye by the reflection function of screen.Projector is to that cannot have barrier between screen, therefore, projector to screen
The distance of curtain determines the area occupied of optical projection system.In order to reduce area occupied, present projection lens is gradually to short focus, super
Short-focus lens transition.
Short focus front projection curtain can be divided into supporting part and hard curtain.Supporting part is rollable, based on black grid (or line grating) projection screen, line
Manage structure outwardly.Hard curtain is not foldable, and based on Fresnel projection screen, inwardly, environment resistant light interference effect is more preferable for texture structure.
As shown in Figure 1, Fresnel projection screen generally by anti-scratch layer 1, coloring layer 2, diffusion layer 3, Fresnel Lenses layer 4, reflecting layer 5,
The six layer structures such as light-absorption layer 6 composition.
Screen surface hardness can be improved in anti-scratch layer, and the scuffing of certain dynamics is stopped to damage.Coloring is usually grey, shallowly
Black etc. can greatly improve Projection Display contrast.Resin material of the diffusion layer by transmitance greater than 85% uniformly adds expansion
Shot (nanoscale is between micron order) is made, and plays the scattering process to incident light.The annulus working face of Fresnel Lenses layer
For cambered surface, projector's incident ray is made to be incident on the every bit in cambered surface by reflected in parallel.In specific implementation, Fresnel is saturating
Mirror makes using the optical resin of high transmittance, is first coated with wet film, then is molded or rolls, final curing by precision die
Molding.Reflecting layer is made of metal material, such as aluminium, copper, silver, can be made by techniques such as printing, spraying, coating or vapor depositions, is used
In reflective projector incident light, Zheng Tou drop shadow effect is formed.Light-absorption layer is made of some non-reflective dark materials, for absorbing
Through the environment light of Fresnel Lenses layer, achieve the purpose that anti-light.
Currently, in the touch control manner cooperated with projection screen, it is relatively conventional with infrared touch control manner.Main cause is to adopt
It is made of infrared touch control manner simple, at low cost.But the touch-control sensing precision of infrared touch control manner is low, effect is bad, meanwhile,
Infrared touch frame is limited to the size of infrared LED lamp, and frame is again thick and wide.
In summary, the existing technology has inconveniences and defects in actual use, so it is necessary to be improved.
Summary of the invention
For above-mentioned defect, the purpose of the present invention is to provide a kind of positive throwing short focus projection screen with touch-control, by according to
Anti-scratch layer, coloring layer, diffusion layer, Fresnel Lenses layer, reflecting layer and the light-absorption layer of secondary setting, further include touch-control structure.
Touch-control structure includes the upper electrode layer, insulating layer and lower electrode layer set gradually.By combination of touch control structure, have projection screen
For touch function.Compared to conventional infrared touch technology, there is high precision and fast response, and do not influence the excellent of border structure
Gesture.
To achieve the goals above, the present invention provides a kind of positive throwing short focus projection screen with touch-control, including what is set gradually
Anti-scratch layer, coloring layer, diffusion layer, Fresnel Lenses layer, reflecting layer and light-absorption layer, further include touch-control structure；
The touch-control structure includes the upper electrode layer, insulating layer and lower electrode layer set gradually.
Positive throwing short focus projection screen according to the present invention with touch-control, the upper electrode layer and reflecting layer are combined into one layer, described
Insulating layer and lower electrode layer are set between reflecting layer and light-absorption layer.
Positive throwing short focus projection screen according to the present invention with touch-control, the light-absorption layer and insulating layer merge into one layer, and locate
Among reflecting layer and lower electrode layer.
Protective layer is arranged in the rear of positive throwing short focus projection screen according to the present invention with touch-control, the light-absorption layer.
Protective layer is arranged in the rear of positive throwing short focus projection screen according to the present invention with touch-control, the lower electrode layer.
Positive throwing short focus projection screen according to the present invention with touch-control, the touch-control structure are that capacitance touching control structure or electromagnetism touch
Control structure.
Positive throwing short focus projection screen according to the present invention with touch-control, the protective layer are metal profile.
Positive throwing short focus projection screen according to the present invention with touch-control, the metal profile are aluminium sheet.
What the present invention passed through is designed to provide a kind of positive throwing short focus projection screen with touch-control, anti-zoned by what is set gradually
Hurt layer, coloring layer, diffusion layer, Fresnel Lenses layer, reflecting layer and light-absorption layer, further includes touch-control structure.Touch-control structure includes
Upper electrode layer, insulating layer and the lower electrode layer set gradually.By combination of touch control structure, projection screen is made to have touch-control function
Energy.Compared to conventional infrared touch technology, there is high precision and fast response, and do not influence the advantage of border structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the projection screen prior art；
Fig. 2 is touch-control structure schematic diagram；
Fig. 3 is the structural schematic diagram of one embodiment of the invention；
Fig. 4 is the structural schematic diagram of one embodiment of the invention；
1- anti-scratch layer in the figure, 2- coloring layer, 3- diffusion layer, 4- Fresnel Lenses layer, the reflecting layer 5-, 6- light-absorption layer,
7- upper electrode layer, 8- insulating layer, 9- lower electrode layer.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 3, the present invention provides a kind of positive throwing short focus projection screen with touch-control, including the anti-scratch layer set gradually
1, coloring layer 2, diffusion layer 3, Fresnel Lenses layer 4, reflecting layer 5 and light-absorption layer 6, further include touch-control structure.
Wherein, the Fresnel of anti-scratch layer 1, coloring layer 2, diffusion layer 3, Fresnel Lenses layer 4, light-absorption layer 5 with routine
Projection screen structure is consistent.
Referring to fig. 2, the touch-control structure includes the upper electrode layer 7, insulating layer 8 and lower electrode layer 9 set gradually.Touch-control
Structure can be capacitance touching control structure, or electromagnetic touch structure.Upper electrode layer 7, insulating layer 8 and lower electrode layer 9 close
Claim to be sense film.
Since the material in the reflecting layer 6 of Fresnel projection screen carrys out reflective projection light using metallic element, as aluminium, silver,
Copper etc., and the material of the upper electrode layer 7 of touch-control structure and lower electrode layer 9 is also metallic element, such as aluminium, silver, copper.Therefore, excellent
Choosing, reflecting layer 6 of the invention can function simultaneously as the upper electrode layer 7 of touch-control structure.Therefore, total is reduced to 8 layers,
That is, the upper electrode layer 7 is combined into one layer with reflecting layer 5, insulating layer 8 and lower electrode are set between the reflecting layer 5 and light-absorption layer 6
Layer 9.
It is horizontal and vertical when the touch-control body of charge will be had close to capacitive sensing film by taking capacitance touching control structure as an example
Capacitance charge will change, thus can judge the position of touch-control body.The principle and capacitance touching control knot of electromagnetic touch structure
Structure is similar, and when the touch-control body with electromagnetic field is close to electromagnetic induction film, horizontal and vertical electromotive force will change, because
And it can judge the position of touch-control body.
When designing metal electrode figure as above, it is contemplated that the reflecting effect in optimal reflecting layer 6, in addition to necessary metal
Route separation, answers reservation metal layer material as much as possible.After completing the production of this reflecting layer, one layer of insulating film is then covered,
Make one layer of metallic pattern electrode, the lower electrode layer 9 as touch-control structure above it again.Making upper and lower metal electrode figure
When shape, semiconductor technology can be used, an entire metal film is first plated on Fresnel Lenses layer, is then lost using exposure development
The technique at quarter is realized graphical；Patterned metal electrode structure can also be realized by the way of silk-screen printing.So far, on
Electrode layer 7 (reflecting layer 6), insulating layer 8, lower electrode layer 9 have completed, and touch-control structure has been formed, meanwhile, Fresnel is thrown
The reflection layer structure of shadow curtain is also to complete.
It referring to fig. 4, preferably, can be by insulating layer 5 in order to further enhance the reflecting effect of projection screen and property simple for structure
It is fabricated to extinction color such as black or dark color, while keeping the anti-short circuit of insulating layer to act on, light-absorption layer 6 is can be used as, replaces luxuriant and rich with fragrance alunite
6 structure of light-absorption layer of your projection screen.That is, light-absorption layer 6 and insulating layer 8 merge into one layer, and it is in reflecting layer 5 (upper electrode layer 7)
Among lower electrode layer 9, totally seven layers of total, more succinctly, meanwhile, light-absorption layer is in front of lower electrode layer, can effectively be kept away
Exempt from the inefficient reflections of lower electrode layer.
Preferably, the rear of the projection screen is equipped with protective layer, and protective layer is usually the support plate of the metal materials such as aluminium sheet,
The signal from screen rear is shielded, it is avoided to interfere touch screen structure.In the embodiment shown in fig. 3, aluminium sheet is arranged in extinction
After layer 6；In the embodiment shown in fig. 4, the rear of lower electrode layer 9 is arranged in aluminium sheet.
Projection screen of the invention combines touch-control structure, therefore, projection screen is made to have touch function.Compared to routine
Infrared touch technology has high precision and fast response, and does not influence the advantage of border structure.
In conclusion the present invention passes through the anti-scratch layer set gradually, coloring layer, diffusion layer, Fresnel Lenses layer, reflection
Layer and light-absorption layer, further include touch-control structure.Touch-control structure includes the upper electrode layer set gradually, insulating layer and lower electrode
Layer.By combination of touch control structure, projection screen is made to have touch function.Compared to conventional infrared touch technology, have high-precision
Degree, fast-response, and the advantage of border structure is not influenced.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Know the change and modification that those skilled in the art makes various responses in accordance with the present invention, but the change and change of these responses
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (8)
1. a kind of positive throwing short focus projection screen with touch-control, which is characterized in that including the anti-scratch layer, coloring layer, expansion set gradually
Layer, Fresnel Lenses layer, reflecting layer and light-absorption layer are dissipated, further includes touch-control structure；
The touch-control structure includes the upper electrode layer, insulating layer and lower electrode layer set gradually.
2. the positive throwing short focus projection screen according to claim 1 with touch-control, which is characterized in that the upper electrode layer and reflection
Laminated is one layer, and insulating layer and lower electrode layer are arranged between the reflecting layer and light-absorption layer.
3. the positive throwing short focus projection screen according to claim 2 with touch-control, which is characterized in that the light-absorption layer and insulating layer
One layer is merged into, and among reflecting layer and lower electrode layer.
4. the positive throwing short focus projection screen according to claim 2 with touch-control, which is characterized in that the rear of the light-absorption layer is set
Set protective layer.
5. the positive throwing short focus projection screen according to claim 3 with touch-control, which is characterized in that the rear of the lower electrode layer
Protective layer is set.
6. the positive throwing short focus projection screen described in any one with touch-control according to claim 1~5, which is characterized in that the touching
Controlling structure is capacitance touching control structure or electromagnetic touch structure.
7. the positive throwing short focus projection screen according to claim 6 with touch-control, which is characterized in that the protective layer is metal branch
Fagging.
8. the positive throwing short focus projection screen according to claim 7 with touch-control, which is characterized in that the metal profile is aluminium
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364752.0A CN109188848A (en) | 2018-11-16 | 2018-11-16 | Positive throwing short focus projection screen with touch-control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364752.0A CN109188848A (en) | 2018-11-16 | 2018-11-16 | Positive throwing short focus projection screen with touch-control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109188848A true CN109188848A (en) | 2019-01-11 |
Family
ID=64940226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811364752.0A Withdrawn CN109188848A (en) | 2018-11-16 | 2018-11-16 | Positive throwing short focus projection screen with touch-control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109188848A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112349214A (en) * | 2020-10-27 | 2021-02-09 | 合肥鑫晟光电科技有限公司 | Micro LED panel, manufacturing method thereof and display device |
| WO2022007576A1 (en) * | 2020-07-06 | 2022-01-13 | 京东方科技集团股份有限公司 | Projection screen and manufacturing method therefor, and projection display system and display method |
-
2018
- 2018-11-16 CN CN201811364752.0A patent/CN109188848A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007576A1 (en) * | 2020-07-06 | 2022-01-13 | 京东方科技集团股份有限公司 | Projection screen and manufacturing method therefor, and projection display system and display method |
| US11927878B2 (en) | 2020-07-06 | 2024-03-12 | Beijing Boe Display Technology Co., Ltd. | Projection screen, manufacturing method, and display system having nanoparticle layers |
| CN112349214A (en) * | 2020-10-27 | 2021-02-09 | 合肥鑫晟光电科技有限公司 | Micro LED panel, manufacturing method thereof and display device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190111 |
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| WW01 | Invention patent application withdrawn after publication |