CN206196139U - A circuit board structure for touch -sensitive screen - Google Patents
A circuit board structure for touch -sensitive screen Download PDFInfo
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- CN206196139U CN206196139U CN201621162770.7U CN201621162770U CN206196139U CN 206196139 U CN206196139 U CN 206196139U CN 201621162770 U CN201621162770 U CN 201621162770U CN 206196139 U CN206196139 U CN 206196139U
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- interface
- touch
- control unit
- main control
- substrate
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Abstract
The utility model discloses a circuit board structure for touch -sensitive screen, it is including base plate, touch panel unit, main control unit, electrical unit, upgrading interface, display driver interface, external interface and touch -control sensor interface, the upgrading interface includes first interface and second interface, touch panel unit, main control unit, electrical unit and first interface set gradually from left to right, the second interface is located between touch panel unit and the main control unit, touch -control sensor interface is located the top of touch panel unit, main control unit, electrical unit and upgrading interface, the below of touch panel unit, main control unit, electrical unit and upgrading interface is located to the display driver interface, the dorsal empty white area territory of base plate is equipped with the copper that covers of ground connection. The utility model provides high signal transmission's stability and reliability helps realizing high -speed SPI communication to the overall arrangement is compact, save the circuit board area.
Description
Technical field
The utility model is related to wiring board, more particularly to a kind of circuit board structure for touch-screen.
Background technology
In the prior art, power unit, MCU parts, display driving interface portion are included for connecting the wiring board of touch-screen
Point, touch-control control section, touch-control SENSOR interface sections, whole machine connecting interface and upgrade interface.For the ease of to wiring board
Layout and convenient with to circuit plate analysis, maintenance etc., and due to touch-control SENSOR interface sections and shows driving interface part
Touch-screen is all for connection to, so generally by touch-control SENSOR interface sections together with the design of display driving interface part,
Wherein touch-control SENSOR interface sections are used for from touch-screen output signal, and display driving interface part is used to be input into touch-screen believes
Number, often there is noise crosstalk interference during signal transmission in the two, causes touch-control IC to realize that high speed SPI is communicated, and then
Influence properties of product.Further, since needing to have certain isolation distance between two kinds of signals, cause wiring board in the design process
Need to reserve a part of clear area, not only waste wiring board area, and increased product cost.
Utility model content
The technical problems to be solved in the utility model is, in view of the shortcomings of the prior art, there is provided one kind is used for condenser type
Touch-screen, and it is avoided that noise crosstalk interference between display driving interface and touch-control sensor interfaces, and then improve signal biography
Defeated stability and reliability, helps to realize that high speed SPI is communicated, and compact in design, the wiring board of saving wiring board area
Structure.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that.
A kind of circuit board structure for touch-screen, it includes substrate, and the substrate is dual platen, is set on the substrate
There are touch control unit, main control unit, power subsystem, upgrade interface, display driving interface, external interface and touch-control sensor to connect
Mouthful, the touch control unit, main control unit, power subsystem and upgrade interface are located at the front side of substrate, the upgrade interface
Including first interface and second interface, the touch control unit, main control unit, power subsystem and first interface from left to right according to
Secondary setting, the second interface is located between touch control unit and main control unit, and the second interface is near touch control
The bottom of unit and main control unit, the display driving interface, external interface and touch-control sensor interfaces are located at substrate backside,
The touch-control sensor interfaces are located at the top of touch control unit, main control unit, power subsystem and upgrade interface, the display
Driving interface is located at aobvious located at the lower section of touch control unit, main control unit, power subsystem and upgrade interface, the external interface
Show the sidepiece of driving interface, by by the display driving interface and between touch-control sensor interfaces are provided separately to reduce the two
Noise jamming, with the touch control unit, main control unit, power subsystem and upgrade interface it is corresponding and the substrate carry on the back
What the white space of side was provided with ground connection covers copper.
Preferably, the substrate is FPC substrates.
Preferably, the touch-control sensor interfaces include the first contact for connecting touch panel sensor unit.
Preferably, the display driving interface includes the second contact for connecting touch screen display unit.
Preferably, the external interface includes the 3rd contact for connecting external equipment.
In the disclosed circuit board structure for touch-screen of the utility model, in the dorsal part of substrate, positioned at touch control list
The top of unit, main control unit, power subsystem and upgrade interface is provided with touch-control sensor interfaces, in touch control unit, master control
The lower section of unit, power subsystem and upgrade interface is provided with display driving interface, using touch control unit, main control unit, electricity
Source unit and upgrade interface separate touch-control sensor interfaces and display driving interface in the region shared by substrate backside, keep away
Noise jamming between having exempted from touching signals and having shown signal, and then the stability and reliability of signal transmission are improved, contribute to
Realize that high speed SPI is communicated.Meanwhile, each several part is divided into substrate by the difference in region according to shared by each several part, the utility model
Both sides so that the circuit distribution on substrate is more uniform, help to save the area of substrate.Additionally, in the substrate backside
What white space was provided with ground connection covers copper, and the effect for covering copper is, display driving interface and will further be touched by covering copper ground wire
Control sensor interface isolation, on the basis of stable signal transmission, reliability is ensured so that can accomplish more between each several part
Step up to gather, integration density is higher.
Brief description of the drawings
Fig. 1 is the circuit block diagram of the wiring board for touch-screen.
Fig. 2 is the front side structure figure of wiring board.
Fig. 3 is the perspective view of wiring board backside configuration.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawings and examples.
The utility model discloses a kind of circuit board structure for touch-screen, with reference to shown in Fig. 1 to Fig. 3, it is included
Substrate 1, the substrate 1 is dual platen, and the substrate 1 is provided with touch control unit 2, main control unit 3, power subsystem 4, upgrading
Interface, display driving interface 6, external interface 7 and touch-control sensor interfaces 8, the touch control unit 2, main control unit 3, electricity
, located at the front side of substrate 1, the upgrade interface includes first interface 50 and second interface 51, institute for source unit 4 and upgrade interface 5
State touch control unit 2, main control unit 3, power subsystem 4 and first interface 50 to set gradually from left to right, the second interface
51 are located between touch control unit 2 and main control unit 3, and the second interface 51 is near touch control unit 2 and master control list
The bottom of unit 3, the display driving interface 6, external interface 7 and touch-control sensor interfaces 8 are located at the dorsal part of substrate 1, described to touch
Control sensor interfaces 8 are located at the top of touch control unit 2, main control unit 3, power subsystem 4 and upgrade interface 5, the display
Driving interface 6 is located at the lower section of touch control unit 2, main control unit 3, power subsystem 4 and upgrade interface 5, the external interface 7
Positioned at the sidepiece of display driving interface 6, dropped by the way that the display driving interface 6 and touch-control sensor interfaces 8 are provided separately
Noise jamming between both low, it is corresponding simultaneously with the touch control unit 2, main control unit 3, power subsystem 4 and upgrade interface
And the dorsal part of the substrate 1 white space be provided with ground connection cover copper, with the touch control unit 2, main control unit 3, power supply
Unit 4 it is corresponding with upgrade interface and the dorsal part of the substrate 1 white space be provided with ground connection cover copper.
In above-mentioned circuit board structure, in the dorsal part of substrate 1, positioned at touch control unit 2, main control unit 3, power subsystem 4
Touch-control sensor interfaces 8 are provided with the top of upgrade interface, in touch control unit 2, main control unit 3, power subsystem 4 and liter
The lower section of level interface is provided with display driving interface 6, is connect using touch control unit 2, main control unit 3, power subsystem 4 and upgrading
Mouthful touch-control sensor interfaces 8 and display driving interface 6 are separated in the region shared by the dorsal part of substrate 1, it is to avoid touch-control letter
Number and display signal between noise jamming, and then improve signal transmission stability and reliability, help to realize high speed SPI
Communication.Meanwhile, each several part is divided into the difference in region according to shared by each several part, the utility model the both sides of substrate 1 so that base
Circuit distribution on plate 1 is more uniform, helps to save the area of substrate 1.Additionally, in the white space of the dorsal part of the substrate 1
Be provided with ground connection covers copper, and the effect for covering copper is that will further show driving interface 6 and touch-control sensor by covering copper ground wire
Interface 8 is isolated, on the basis of stable signal transmission, reliability is ensured so that can accomplish compacter between each several part,
Integration density is higher.
In above-mentioned drive circuit board, the function of each several part is as follows：
Finger touch information is converted into electric signal, and pass through by the touch control unit 2 for realizing touch controllable function
Touch coordinate information is reported MCU by I2C agreements；
The main control unit 3 includes MCU, and main control unit 3 is mainly the coordinate information for reporting touch-control and passes through high speed SPI
Agreement is transferred to external machine system, and I2C protocol informations are converted into high speed SPI protocol information, realizes that touch information passes through
The communication of high speed SPI agreement and machine system；
The power subsystem 4 is powered and power filter processing module including power supply, respectively touch-control control section and MCU portions
The reliable source of power for providing and adapting to normal work needs is provided；
The upgrade interface is used for touch-control control section and MCU upgrading software programs, realizes flexibly change touch-control and MCU controls
Processing procedure sequence；
The display driving interface 6 is used to connect display screen drive chip, realizes normal display function, including to display screen
Electric signal is provided；
The external interface 7 is outside whole machine connecting interface, and it is to realize being connected by the circuit board and whole machine, by all letters
Number interacted with whole machine by the interface, realize that whole machine shows and touch controllable function；
The touch-control sensor interfaces 8 are used to that, by the SENSOR of touch-control and the circuit board connecting interface, touch-control IC can be connected
TX and RX passages；
In the present embodiment, the substrate 1 is FPC substrates.Realized using FPC.Further, the substrate 1
It is to include two L-shaped substrates of support arm, the touch control unit 2, main control unit 3, power subsystem 4, upgrade interface, display
Driving interface 6 and touch-control sensor interfaces 8 are on a support arm of substrate 1, and the external interface 7 is another located at substrate 1
On bar support arm.Using L-shaped substrate, help to carry out grafting, bending.
Used as a kind of preferred embodiment, the touch-control sensor interfaces 8 are included for connecting touch panel sensor unit
First contact 80.The display driving interface 6 includes the second contact 60 for connecting touch screen display unit.The outside
Interface 7 includes the 3rd contact 70 for connecting external equipment.
The above is the utility model preferred embodiment, is not limited to the utility model, all in this practicality
Modification, equivalent or improvement made in new technical scope etc., should be included in the model that the utility model is protected
In enclosing.
Claims (5)
1. a kind of circuit board structure for touch-screen, it is characterised in that include substrate, the substrate is dual platen, described
Substrate is provided with touch control unit, main control unit, power subsystem, upgrade interface, display driving interface, external interface and touch-control
Sensor interfaces, the touch control unit, main control unit, power subsystem and upgrade interface are described located at the front side of substrate
Upgrade interface include first interface and second interface, the touch control unit, main control unit, power subsystem and first interface by
Left-to-right is set gradually, and the second interface is located between touch control unit and main control unit, and the second interface is close to
The bottom of touch control unit and main control unit, the display driving interface, external interface and touch-control sensor interfaces are located at
Substrate backside, the touch-control sensor interfaces are located at the upper of touch control unit, main control unit, power subsystem and upgrade interface
Side, the display driving interface is described outer located at the lower section of touch control unit, main control unit, power subsystem and upgrade interface
Portion's interface be located at display driving interface sidepiece, by by it is described display driving interface and touch-control sensor interfaces be provided separately come
Reduce the two between noise jamming, with the touch control unit, main control unit, power subsystem and upgrade interface it is corresponding and
Copper is covered what the white space of the substrate backside was provided with ground connection.
2. the circuit board structure of touch-screen is used for as claimed in claim 1, it is characterised in that the substrate is FPC substrates.
3. the circuit board structure of touch-screen is used for as claimed in claim 1, it is characterised in that the touch-control sensor interface bags
Include the first contact for connecting touch panel sensor unit.
4. the circuit board structure of touch-screen is used for as claimed in claim 1, it is characterised in that the display driving interface includes
There is the second contact for connecting touch screen display unit.
5. the circuit board structure of touch-screen is used for as claimed in claim 1, it is characterised in that the external interface includes use
In the 3rd contact of connection external equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162770.7U CN206196139U (en) | 2016-10-25 | 2016-10-25 | A circuit board structure for touch -sensitive screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162770.7U CN206196139U (en) | 2016-10-25 | 2016-10-25 | A circuit board structure for touch -sensitive screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206196139U true CN206196139U (en) | 2017-05-24 |
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ID=58733087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621162770.7U Active CN206196139U (en) | 2016-10-25 | 2016-10-25 | A circuit board structure for touch -sensitive screen |
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| Country | Link |
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| CN (1) | CN206196139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020010777A1 (en) * | 2018-07-10 | 2020-01-16 | 广州视源电子科技股份有限公司 | Capacitive screen control panel and interactive smart tablet |
-
2016
- 2016-10-25 CN CN201621162770.7U patent/CN206196139U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020010777A1 (en) * | 2018-07-10 | 2020-01-16 | 广州视源电子科技股份有限公司 | Capacitive screen control panel and interactive smart tablet |
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