CN206193748U - A dirver circuit board structure for capacitive touch screen - Google Patents
A dirver circuit board structure for capacitive touch screen Download PDFInfo
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- CN206193748U CN206193748U CN201621162880.3U CN201621162880U CN206193748U CN 206193748 U CN206193748 U CN 206193748U CN 201621162880 U CN201621162880 U CN 201621162880U CN 206193748 U CN206193748 U CN 206193748U
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- interface
- touch
- control unit
- main control
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Abstract
The utility model discloses a dirver circuit board structure for capacitive touch screen, it is including the base plate, be equipped with the touch panel unit on the base plate, the main control unit, electrical unit, the upgrading interface, the display driver interface, external interface and touch -control sensor interface, the touch panel unit, the main control unit, the front side of base plate is all located to electrical unit and upgrading interface, the display driver interface, a main control unit, a power supply unit, the main control unit, the top of electrical unit and upgrading interface, the touch panel unit is located to the display driver interface, the main control unit, a main control unit, external interface is located the lateral part of display driver interface, through separately setting up the noise who reduces the two with display driver interface and touch -control sensor interface, and then improvement signal transmission's stability and reliability, help realizing high -speed SPI communication.
Description
Technical field
The utility model is related to the wiring board for connecting touch-screen, more particularly to a kind of drive for capacitive touch screen
Dynamic board structure of circuit.
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.
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 the drive circuit board structure of high speed SPI communication.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that.
A kind of drive circuit board structure for capacitive touch screen, it includes substrate, and the substrate is dual platen, institute
Substrate is stated to be 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 located at the front side of substrate, and
And the touch control unit, main control unit, power subsystem and upgrade interface set gradually from left to right, the display driving connects
Mouthful, external interface and touch-control sensor interfaces be located at substrate backside, the touch-control sensor interfaces be located at touch control unit,
The top of main control unit, power subsystem and upgrade interface, the display driving interface located at touch control unit, main control unit,
The lower section of power subsystem and upgrade interface, the external interface is located at the sidepiece of display driving interface, is driven by by the display
Mobile interface and touch-control sensor interfaces are provided separately to reduce the noise jamming between the two.
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 drive circuit board structure for capacitive touch screen of the utility model, in the dorsal part of substrate, it is located at
The top of touch control unit, main control unit, power subsystem and upgrade interface is provided with touch-control sensor interfaces, in touch control
The lower section of unit, main control unit, power subsystem and upgrade interface is provided with display driving interface, using touch control unit, master
Control unit, power subsystem and upgrade interface are in the region shared by substrate backside by touch-control sensor interfaces and display driving interface
Separate, it is to avoid the noise jamming between touching signals and display signal, and then improve the stability and reliability of signal transmission
Property, help to realize that high speed SPI is communicated.Additionally, according to shared by each several part region difference, the utility model sets up each several part separately
In the both sides of substrate so that the circuit distribution on substrate is more uniform, help to save the area of substrate.
Brief description of the drawings
Fig. 1 is the circuit block diagram of the drive circuit board for capacitive touch screen.
Fig. 2 is the front side structure figure of drive circuit board.
Fig. 3 is the backside configuration perspective view of drive circuit board.
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 drive circuit board structure for capacitive touch screen, with reference to Fig. 1 to Fig. 3 institutes
Show, it includes substrate 1, the substrate 1 is dual platen, and the substrate 1 is provided with touch control unit 2, main control unit 3, electricity
Source unit 4, upgrade interface 5, display driving interface 6, external interface 7 and touch-control sensor interfaces 8, the touch control unit 2,
Main control unit 3, power subsystem 4 and upgrade interface 5 are located at the front side of substrate 1, and the touch control unit 2, master control list
Unit 3, power subsystem 4 and upgrade interface 5 set gradually from left to right, the display driving interface 6, external interface 7 and touch-control
Sensor interfaces 8 are located at the dorsal part of substrate 1, and the touch-control sensor interfaces 8 are located at touch control unit 2, main control unit 3, electricity
The top of source unit 4 and upgrade interface 5, the display driving interface 6 is located at touch control unit 2, main control unit 3, power supply list
Unit 4 and the lower section of upgrade interface 5, the external interface 7 are located at the sidepiece of display driving interface 6, are driven by by the display
Interface 6 and touch-control sensor interfaces 8 are provided separately to reduce the noise jamming between the two.
In above-mentioned drive circuit board structure, in the dorsal part of substrate 1, positioned at touch control unit 2, main control unit 3, power supply list
The top of unit 4 and upgrade interface 5 is provided with touch-control sensor interfaces 8, in touch control unit 2, main control unit 3, power subsystem 4
Display driving interface 6 is provided with the lower section of upgrade interface 5, using touch control unit 2, main control unit 3, the and of power subsystem 4
Upgrade interface 5 separates touch-control sensor interfaces 8 and display driving interface 6 in the region shared by the dorsal part of substrate 1, it is to avoid
Noise jamming between touching signals and display signal, and then the stability and reliability of signal transmission are improved, help to realize
High speed SPI is communicated.Additionally, according to shared by each several part region difference, each several part is divided into the utility model the two of substrate 1
Side so that the circuit distribution on substrate 1 is more uniform, helps to save the area of substrate 1.
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 5 is used for touch-control control section and MCU upgrading software programs, realizes flexibly change touch-control and MCU
Control program；
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, it is the touch control unit 2, main control unit 3, power subsystem 4, upgrade interface 5, aobvious
Show driving interface 6 and touch-control sensor interfaces 8 on a support arm of substrate 1, the external interface 7 is another located at substrate 1
On one 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.
It is corresponding simultaneously with the touch control unit 2, main control unit 3, power subsystem 4 and upgrade interface 5 in the present embodiment
And the dorsal part of the substrate 1 white space be provided with ground connection cover copper.The effect for covering copper is, further by covering copper ground wire
Display driving interface 6 and touch-control sensor interfaces 8 are isolated, on the basis of stable signal transmission, reliability is ensured so that
Can accomplish compacter between each several part, integration density is higher.
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 drive circuit board structure for capacitive touch screen, it is characterised in that include substrate, the substrate is double
Panel, the substrate is provided with touch control unit, main control unit, power subsystem, upgrade interface, display driving interface, outside
Interface and touch-control sensor interfaces, the touch control unit, main control unit, power subsystem and upgrade interface are located at substrate
Front side, and the touch control unit, main control unit, power subsystem and upgrade interface set gradually from left to right, it is described aobvious
Show driving interface, external interface and touch-control sensor interfaces located at substrate backside, the touch-control sensor interfaces are located at and touch
The top of control unit, main control unit, power subsystem and upgrade interface, the display driving interface located at touch control unit,
The lower section of main control unit, power subsystem and upgrade interface, the external interface is located at the sidepiece of display driving interface, by by institute
State display driving interface and touch-control sensor interfaces are provided separately to reduce the noise jamming between the two.
2. the as claimed in claim 1 drive circuit board structure for being used for capacitive touch screen, it is characterised in that the substrate is
FPC substrates.
3. the drive circuit board structure of capacitive touch screen is used for as claimed in claim 1, it is characterised in that the touch-control
Sensor interfaces include the first contact for connecting touch panel sensor unit.
4. the drive circuit board structure of capacitive touch screen is used for as claimed in claim 1, it is characterised in that the display is driven
Mobile interface includes the second contact for connecting touch screen display unit.
5. the drive circuit board structure of capacitive touch screen is used for as claimed in claim 1, it is characterised in that the outside connects
Mouth includes the 3rd contact for connecting external equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162880.3U CN206193748U (en) | 2016-10-25 | 2016-10-25 | A dirver circuit board structure for capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162880.3U CN206193748U (en) | 2016-10-25 | 2016-10-25 | A dirver circuit board structure for capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206193748U true CN206193748U (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621162880.3U Active CN206193748U (en) | 2016-10-25 | 2016-10-25 | A dirver circuit board structure for capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206193748U (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 CN201621162880.3U patent/CN206193748U/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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