CN211718867U - Capacitive electromagnetic holographic projection touch screen - Google Patents
Capacitive electromagnetic holographic projection touch screen Download PDFInfo
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- CN211718867U CN211718867U CN201922488919.0U CN201922488919U CN211718867U CN 211718867 U CN211718867 U CN 211718867U CN 201922488919 U CN201922488919 U CN 201922488919U CN 211718867 U CN211718867 U CN 211718867U
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Abstract
The utility model discloses a capacitance electromagnetic holographic projection touch screen, which comprises a touch film, transparent glass and a touch pen; the whole capacitive electromagnetic holographic projection touch screen is transparent; the touch film comprises capacitance electromagnetic electrode wires arranged on the same layer, a control circuit device and driving software; the control circuit device is used for detecting position information of a hand or a touch pen on the touch film; the touch medium layer is made of transparent glass, and the upper layer of the touch medium layer is attached with a holographic projection film made of a transparent material. The holographic projection touch screen is characterized in that a holographic projection film covers the capacitive electromagnetic touch screen, images can be projected onto the holographic projection touch screen through an external projector, and can be directly written on an optical screen in a touch manner.
Description
Technical Field
The invention relates to the technical field of projection instrument accessories, in particular to a capacitive electromagnetic holographic projection touch screen.
Background
The traditional projection curtain has a plurality of inconvenient places when in projection. The projected image is a finished PPT which is generally fixed, and many courseware or schemes need to be drawn and marked on site to remind the key points or places needing to be modified, but the projected image cannot be marked on a projection curtain and sometimes has to be stopped for modification, so that the problems of interrupted thinking of a speaker, cold spots and the like are caused. At present, a whiteboard capable of being used as a projection is available in the market, which is called an electronic whiteboard. The electronic whiteboard can be used for projection and writing, can be properly irradiated in the projection screen, and can write and mark on the whiteboard in the projection process. Electronic whiteboards of the mainstream technology in the market at present are infrared electronic whiteboards and optical electronic whiteboards.
The principle of the infrared whiteboard is that a circle of infrared frames around the whiteboard is used for achieving the positioning effect. The infrared frame sends signals from the X-axis and Y-axis and receives signals from the other side. If the finger blocks the touch position, the touch position of the finger can be sensed, and therefore the positioning effect is achieved. The infrared electronic whiteboard has the advantage that the pen can be replaced by direct handwriting or any object. The disadvantage is that it can not provide the accurate writing effect of writing on the blackboard, and it is necessary to stroke one stroke while writing, and the misoperation will be caused when the wrist or other objects enter the range of the infrared frame. Meanwhile, the infrared electronic whiteboard can be interfered by strong light in front of the screen.
The optical electronic whiteboard is a relatively new product, integrates high and new technical products developed by a plurality of high-tech means such as a tip electronic technology, a software technology and the like, combines a computer and a projector, can realize paperless office and teaching, can directly write with a pen like a common whiteboard or a teaching blackboard, and then input into the computer, and has the advantages of the projector, the common whiteboard and the electronic whiteboard compared with the projector and the common whiteboard. However, the optical electronic whiteboard is a high-technology product at present, and the requirements of hardware and software are very high, so that the optical electronic whiteboard cannot be popularized and applied.
Therefore, it is necessary to design a projection touch screen with low cost and reasonable and simple structure.
Disclosure of Invention
The invention aims to: the capacitive electromagnetic holographic projection touch screen is low in cost and reasonable and simple in structure, and the thickness of the whole touch screen is reduced on the premise that the electromagnetic touch function and the capacitive touch function are guaranteed.
The technical scheme of the invention is as follows: a capacitance electromagnetic type holographic projection touch screen comprises a touch film, a touch medium layer and a touch pen, wherein the touch medium layer is fixedly covered above the touch film in a laminating mode; the whole capacitive electromagnetic holographic projection touch screen is transparent; the capacitive touch control driving electrode is arranged on the same layer, and comprises a first electromagnetic touch control electrode, a second electromagnetic touch control electrode, a control circuit device and driving software, wherein the first electromagnetic touch control electrode is insulated from the capacitive touch control sensing electrode and arranged on the same layer; the control circuit device is used for detecting the position information of an external hand or a touch pen on the touch film; the touch medium layer is made of transparent glass, and the upper layer of the touch medium layer is attached with a holographic projection film made of a transparent material.
Preferably, the touch medium layer is transparent tempered glass.
Preferably, the lower layer of the touch film is also adhered with a transparent protective film.
Preferably, the whole capacitive electromagnetic holographic projection touch screen can be semi-transparent, and a semi-transparent holographic projection film is adopted.
The utility model has the advantages that: according to the capacitive electromagnetic holographic projection touch screen, the capacitive electromagnetism touch film arranged on the same layer is used, the first electromagnetic touch electrode and the capacitive touch sensing electrode are arranged on the same layer, and the second electromagnetic touch electrode and the capacitive touch driving electrode are arranged on the same layer, so that the electromagnetic touch effect and the capacitive touch effect can be guaranteed, meanwhile, the film layer of the touch screen can be simplified to the greatest extent, and the thickness of the whole touch screen is reduced. The transparent capacitive electromagnetic touch screen is covered with a layer of transparent holographic projection film, an image can be projected onto the capacitive electromagnetic holographic projection touch screen through an external projector, and can be directly touched and written on an optical screen through hands or electromagnetic touch points, and the touch screen can be used in occasions with high touch points, such as drawing, sketch drawing and the like; and transparent glass is used as a touch medium for supporting the holographic film for writing or displaying a projection picture and protecting the touch layer below, so that the whole capacitive electromagnetic holographic projection touch screen is transparent, can be suitable for any occasions, office partitions, meeting room partitions and the like, and does not occupy space. The capacitive electromagnetic holographic projection touch screen is simple in structure, low in cost, capable of being produced in large batch and convenient to popularize.
Drawings
The invention is further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
wherein: 1. a touch film; 2. touching the medium layer; 3. a holographic projection film; 4. a stylus; 5. a transparent protective film.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1, the capacitive electromagnetic holographic projection touch screen of the present invention comprises a touch film 1, a touch medium layer 2 fixedly covered on the touch film by a bonding method, and a stylus 4 capable of emitting electromagnetic waves; the whole capacitive electromagnetic holographic projection touch screen is transparent; the capacitive touch control driving electrode is arranged on the same layer, and comprises a first electromagnetic touch control electrode, a second electromagnetic touch control electrode, a control circuit device and driving software, wherein the first electromagnetic touch control electrode is insulated from the capacitive touch control sensing electrode and arranged on the same layer; the control circuit device is used for detecting position information of an external hand or a touch pen on the touch film. The touch medium layer 2 is made of transparent glass, and the upper layer of the touch medium layer 2 is sequentially attached with an explosion-proof film 6 and a holographic projection film 3 made of transparent materials. The holographic projection film is a high-light-transmittance projection film, can clearly display a projection picture, is in a full-transparent state when not projected, has a transparent characteristic, and can ensure that a viewer can see a scene behind the viewer through the projection film while keeping clear development.
Further, a transparent protective film 5 is adhered to the lower layer of the touch film 1, and is used for preventing the electromagnetic touch film from being worn and playing a role in protection.
Example two:
the whole capacitive electromagnetic holographic projection touch screen can also be semitransparent, and a semitransparent holographic projection film is adopted. The rest is the same as the first embodiment.
The utility model discloses a holographic projection touch-sensitive screen of electric capacity electromagnetic type uses the touch membrane that electric capacity electromagnetism was set up with the layer, with first electromagnetism touch-control electrode and electric capacity touch-control response electrode with the layer setting, with second electromagnetism touch-control electrode and electric capacity touch-control drive electrode with the layer setting, can be when guaranteeing electromagnetic type touch-control effect and capacitanc touch-control effect furthest's simplification touch-sensitive screen's rete to reduce the thickness of whole touch-sensitive screen. The transparent capacitive electromagnetic touch screen is covered with a layer of transparent holographic projection film, an image can be projected onto the capacitive electromagnetic holographic projection touch screen through an external projector, and can be directly touched and written on an optical screen through hands or electromagnetic touch points, and the touch screen can be used in occasions with high touch points, such as drawing, sketch drawing and the like; and transparent glass is used as a touch medium for supporting the holographic film for writing or displaying a projection picture and protecting the touch layer below, so that the whole capacitive electromagnetic holographic projection touch screen is transparent, can be suitable for any occasions, office partitions, meeting room partitions and the like, and does not occupy space. The capacitive electromagnetic holographic projection touch screen is simple in structure, low in cost, capable of being produced in large batch and convenient to popularize.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed herein be covered by the appended claims.
Claims (4)
1. A capacitance electromagnetic type holographic projection touch screen comprises a touch film, a touch medium layer and a touch pen, wherein the touch medium layer is fixedly covered above the touch film in a laminating mode; the method is characterized in that: the whole capacitive electromagnetic holographic projection touch screen is transparent;
the capacitive touch control driving electrode is insulated from the capacitive touch control sensing electrode and arranged on the same layer, the second electromagnetic touch control electrode is insulated from the capacitive touch control driving electrode and arranged on the same layer and is arranged with the first electromagnetic touch control electrode in a crossed manner, and the control circuit device and the driving software are electrically connected with the capacitive touch control sensing electrode, the capacitive touch control driving electrode, the first electromagnetic touch control electrode and the second electromagnetic touch control electrode; the control circuit device is used for detecting the position information of an external hand or a touch pen on the touch film; the touch medium layer is made of transparent glass, and the upper layer of the touch medium layer is attached with a holographic projection film made of a transparent material.
2. The capacitive electromagnetic holographic projection touch screen of claim 1, wherein: the touch medium layer is made of transparent toughened glass.
3. The capacitive electromagnetic holographic projection touch screen of claim 1, wherein: the lower layer of the touch film is also attached with a transparent protective film.
4. The capacitive electromagnetic holographic projection touch screen of claim 1, wherein: the whole capacitive electromagnetic holographic projection touch screen can also be semitransparent, and a semitransparent holographic projection film is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922488919.0U CN211718867U (en) | 2019-12-31 | 2019-12-31 | Capacitive electromagnetic holographic projection touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922488919.0U CN211718867U (en) | 2019-12-31 | 2019-12-31 | Capacitive electromagnetic holographic projection touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211718867U true CN211718867U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922488919.0U Active CN211718867U (en) | 2019-12-31 | 2019-12-31 | Capacitive electromagnetic holographic projection touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211718867U (en) |
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2019
- 2019-12-31 CN CN201922488919.0U patent/CN211718867U/en active Active
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