CN210573730U - 3D curved surface electric capacity screen - Google Patents
3D curved surface electric capacity screen Download PDFInfo
- Publication number
- CN210573730U CN210573730U CN201922057542.3U CN201922057542U CN210573730U CN 210573730 U CN210573730 U CN 210573730U CN 201922057542 U CN201922057542 U CN 201922057542U CN 210573730 U CN210573730 U CN 210573730U
- Authority
- CN
- China
- Prior art keywords
- conductive film
- capacitive screen
- ito conductive
- cover plate
- adhesive tape
- 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.)
- Active
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The utility model discloses a 3D curved surface electric capacity screen, include: the glass cover plate, the capacitive screen sensor and the flexible circuit board, the PET membrane is pasted to the medial surface of glass cover plate, and glass cover plate surface paste has the protection film, the metal level has been plated on the circuit pattern layer of capacitive screen sensor touch face, and still has pasted flexible ITO conductive film on the touch face of capacitive screen sensor, the surface paste of flexible ITO conductive film has first optical adhesive tape layer, and the another side and the PET membrane on first optical adhesive tape layer bond, it has the ITO conductive film to paste on the non-touch face of capacitive screen sensor, and the surface paste of ITO conductive film has second optical adhesive tape layer, the one side and the second optical adhesive tape layer of flexible circuit board bond. This electric capacity screen structural design is simple reasonable, prevents that printing ink from wriggling, guarantees the response effect, and the passageway resistance reduces simultaneously, improves sensitivity and anti-interference ability, and safety and stability, application scope is wide, is favorable to promoting and popularizing.
Description
Technical Field
The utility model relates to an electric capacity screen technical field, in particular to 3D curved surface electric capacity screen.
Background
The capacitive touch screen technology works by using current induction of a human body. The capacitive touch screen is a four-layer composite glass screen, the inner surface and the interlayer of the glass screen are respectively coated with one layer of ITO, the outermost layer is a thin-layer silica glass protective layer, the interlayer ITO coating serves as a working surface, four electrodes are led out from four corners, and the inner layer of ITO serves as a shielding layer to guarantee a good working environment. When a finger touches the metal layer, a coupling capacitance is formed between the user and the touch screen surface due to the electric field of the human body, and for high frequency currents, the capacitance is a direct conductor, so that the finger draws a small current from the contact point. The currents respectively flow out of the electrodes on the four corners of the touch screen, the currents flowing through the four electrodes are in direct proportion to the distances from the fingers to the four corners, and the controller obtains the position of a touch point through accurate calculation of the proportion of the four currents.
In the traditional structure of curved surface capacitive screen, printing ink on the curved surface glass cover plate often can produce the wriggling problem of printing ink in glass curved surface position, influences the sensing effect, and the passageway resistance of traditional curved surface capacitive screen is too big simultaneously, will influence IC's discernment ability, and the interference killing feature and the security of curved surface capacitive screen are also very unsatisfactory moreover, are unfavorable for extensive popularization and popularization.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a 3D curved surface electric capacity screen, solve printing ink wriggling influence sensing effect, the too big IC discernment ability that influences of passageway resistance, the poor problem of interference killing feature and security.
In order to solve the technical problem, the utility model discloses a technical scheme does: a 3D curved capacitive screen comprising: the glass cover plate, the capacitive screen sensor and the flexible circuit board, the PET membrane is pasted to the medial surface of glass cover plate, and glass cover plate surface paste has the protection film, the metal level has been plated on the circuit pattern layer of capacitive screen sensor touch face, and still has pasted flexible ITO conductive film on the touch face of capacitive screen sensor, the surface paste of flexible ITO conductive film has first optical adhesive tape layer, and the another side and the PET membrane on first optical adhesive tape layer bond, it has the ITO conductive film to paste on the non-touch face of capacitive screen sensor, and the surface paste of ITO conductive film has second optical adhesive tape layer, the one side and the second optical adhesive tape layer of flexible circuit board bond.
Preferably, the glass cover plate is 3D curved cover plate glass, and an ink layer with the thickness of 15-20 microns is printed on the bonding surface of the PET film and the glass cover plate.
Preferably, the electrodes of the flexible ITO conductive film and the ITO conductive film are respectively connected with the anode and the cathode of the flexible circuit board, and metal foils are further arranged around the leads at the electrodes of the flexible ITO conductive film and the ITO conductive film.
Preferably, the capacitive screen sensor is an ITO thin film sensor, and the ITO thin film sensor is at least provided with two layers.
Preferably, the flexible circuit board is provided with a processor module, and the processor module comprises a reference ground and a digital-to-analog conversion device.
The utility model has the advantages that:
the printing ink creep can be effectively prevented by coating the printing ink layer on the PET film, then the PET film is bonded with the 3D curved surface type glass cover plate, the induction effect is ensured, the circuit pattern layer of the capacitive screen sensor is plated with the metal layer, the channel resistance value of the capacitive screen is reduced, the problem that the IC cannot be driven due to the fact that the channel is too long and the resistance is too high is solved, the metal foils are arranged around the leads at the positions of the flexible ITO conductive film and the ITO conductive film electrode, the metal foils are matched with a reference ground and a digital-to-analog conversion device in a processor module on the flexible circuit board, when the metal foils are grounded, the reference ground is passed through, the induction signals are subjected to anti-interference processing according to the reference signals corresponding to the induction signals, a target signal is obtained, meanwhile, the interference mode on a receiving channel is changed from differential mode interference into common mode interference on the receiving channel and the ground, further, when the, avoid digital-to-analog converter to sample the electromagnetic interference of coupling on the complete machine, and then reached and made the electric capacity screen under complicated power environment, still can keep the technological effect of higher sensitivity and better stability, utilize first optics sticky tape layer and second optics sticky tape layer can block cullet when the electric capacity screen damages, can not splash out and hinder the people, more can not lead to the fact the company damage to light source bodies such as LCD, LED, glue used in the bonding of this electric capacity screen is transparent optics glue simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the display device comprises a protective film 1, a glass cover plate 2, a PET film 3, a first optical adhesive tape layer 4, a flexible ITO conductive film 5, a metal layer 6, a capacitive screen sensor 7, an ITO conductive film 8, a second optical adhesive tape layer 9 and a flexible circuit board 10.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
According to the illustration of FIG. 1: a 3D curved capacitive screen comprising: glass apron 2, capacitive screen sensor 7 and flexible circuit board 10, the medial surface of glass apron 2 is pasted and is had PET membrane 3, and the outer surface of glass apron 2 is pasted and is had protection film 1, metal level 6 has been plated on the circuit pattern layer of capacitive screen sensor 7 touch surface, and still has pasted flexible ITO conductive film 5 on the touch surface of capacitive screen sensor 7, the surface of flexible ITO conductive film 5 is pasted and is had first optical adhesive tape layer 4, and the another side and the PET membrane 3 bonding of first optical adhesive tape layer 4, it has ITO conductive film 8 to paste on the non-touch surface of capacitive screen sensor 7, and the surface of ITO conductive film 8 is pasted and is had second optical adhesive tape layer 9, the one side and the second optical adhesive tape layer 9 bonding of flexible circuit board 10.
Specifically, the glass cover plate 2 is 3D curved cover plate glass, and an ink layer with the thickness of 15-20 microns is printed on the bonding surface of the PET film 3 and the glass cover plate 2.
Specifically, the electrodes of the flexible ITO conductive film 5 and the ITO conductive film 8 are respectively connected to the positive electrode and the negative electrode of the flexible circuit board 10, and a metal foil is further disposed around the lead at the electrodes of the flexible ITO conductive film 5 and the ITO conductive film 8.
Specifically, the capacitive screen sensor 7 is an ITO thin film sensor, and the ITO thin film sensor is provided with at least two layers.
Specifically, the flexible circuit board 10 is provided with a processor module, and the processor module includes a reference ground and a digital-to-analog conversion device.
The structure principle is as follows: the printing ink wriggling can be effectively prevented by coating the printing ink layer on the PET film 3, then the PET film 3 is bonded with the 3D curved surface type glass cover plate 2, the induction effect is ensured, the metal layer 6 is plated on the circuit pattern layer of the capacitive screen sensor 7, the resistance value of a channel of a capacitive screen is reduced, the problem that an IC (integrated circuit) cannot be driven due to the fact that the resistance is too long and the resistance is too high is solved, metal foils are arranged around leads at the electrode positions of the flexible ITO conductive film 5 and the ITO conductive film 8, and are matched with a reference ground and a digital-to-analog conversion device in a processor module on the flexible circuit board 10, when the metal foils are grounded, the induction signals are subjected to anti-interference processing according to reference signals corresponding to the induction signals through the reference ground to obtain target signals, and meanwhile, the interference mode of a receiving channel is changed into common mode interference of the receiving channel, make electromagnetic interference pass through digital-to-analog conversion device's reference ground earlier, avoid digital-to-analog converter to sample the electromagnetic interference of coupling on the complete machine, and then reached and made the electric capacity screen under complicated power environment, still can keep the technological effect of higher sensitivity and better stability, utilize first optics sticky tape layer 4 and second optics sticky tape layer 9 can block cullet when the electric capacity screen damages, can not splash out and injure the people, more can not lead to the fact the company damage to light source bodies such as LCD, LED, glue used for bonding in this electric capacity screen is transparent optical glue simultaneously.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. The utility model provides a 3D curved surface capacitive screen which characterized in that includes: the glass cover plate, the capacitive screen sensor and the flexible circuit board, the PET membrane is pasted to the medial surface of glass cover plate, and glass cover plate surface paste has the protection film, the metal level has been plated on the circuit pattern layer of capacitive screen sensor touch face, and still has pasted flexible ITO conductive film on the touch face of capacitive screen sensor, the surface paste of flexible ITO conductive film has first optical adhesive tape layer, and the another side and the PET membrane on first optical adhesive tape layer bond, it has the ITO conductive film to paste on the non-touch face of capacitive screen sensor, and the surface paste of ITO conductive film has second optical adhesive tape layer, the one side and the second optical adhesive tape layer of flexible circuit board bond.
2. The 3D curved capacitive screen of claim 1, wherein the glass cover plate is 3D curved cover plate glass, and an ink layer with a thickness of 15-20 microns is printed on the bonding surface of the PET film and the glass cover plate.
3. The 3D curved capacitive screen of claim 1, wherein the electrodes of the flexible ITO conductive film and the ITO conductive film are respectively connected with the positive electrode and the negative electrode of the flexible circuit board, and a metal foil is further arranged around the leads at the electrodes of the flexible ITO conductive film and the ITO conductive film.
4. The 3D curved capacitive screen of claim 1, wherein the capacitive screen sensor is an ITO thin film sensor, and the ITO thin film sensor has at least two layers.
5. The 3D curved capacitive screen of claim 1, wherein a processor module is disposed on the flexible circuit board, and the processor module includes a reference ground and a digital-to-analog conversion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922057542.3U CN210573730U (en) | 2019-11-23 | 2019-11-23 | 3D curved surface electric capacity screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922057542.3U CN210573730U (en) | 2019-11-23 | 2019-11-23 | 3D curved surface electric capacity screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210573730U true CN210573730U (en) | 2020-05-19 |
Family
ID=70660995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922057542.3U Active CN210573730U (en) | 2019-11-23 | 2019-11-23 | 3D curved surface electric capacity screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210573730U (en) |
-
2019
- 2019-11-23 CN CN201922057542.3U patent/CN210573730U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102236480A (en) | Projection type capacitive touch screen | |
| CN102662548B (en) | A kind of capacitance type touch-control panel | |
| CN203376736U (en) | Capacity touch panel | |
| CN207182252U (en) | A kind of projection-type capacitive touch screen of double-face electrode | |
| CN210573730U (en) | 3D curved surface electric capacity screen | |
| CN203299798U (en) | Capacitance touch control screen adopting copper plating conductive base material | |
| CN205862314U (en) | Add evanescence of heat mist electric resistance touch screen | |
| CN205050115U (en) | Antistatic anti -electromagnetic interference touch -sensitive screen | |
| CN205310987U (en) | Touch -sensitive screen laminating is with bubble celloidin | |
| CN116400544A (en) | Display module, display panel and display device | |
| CN214151663U (en) | Incell broken code touch display screen ITO's project organization | |
| CN102236485A (en) | Projection type capacitive touch screen | |
| CN211787038U (en) | Touch display screen module | |
| CN111258463B (en) | Integrative black capacitive touch-sensitive screen of putting out screen | |
| CN211149417U (en) | Integrated black suspension touch panel and touch display screen | |
| CN106502468A (en) | A kind of touch base plate, touch control display apparatus and preparation method | |
| CN106445250A (en) | Pressure touch screen and display device | |
| CN112578947A (en) | Incell broken code touch display screen ITO's project organization | |
| CN210270838U (en) | Ultrathin touch screen | |
| CN209718888U (en) | A kind of general halftone of touch screen silver paste silk-screen | |
| CN111240513A (en) | Protection structure for reverse folding part of display | |
| CN206331402U (en) | Pressure touch screen and display device | |
| CN207281732U (en) | A kind of capacitance touch screen | |
| CN207096965U (en) | A kind of touch module, touching display screen and electronic equipment | |
| CN205942661U (en) | A high strength ITO film for flexible display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |