CN206193776U - Intelligent module of drawing for order is taken through SPI interface drive TFT and touch -sensitive screen certainly - Google Patents
Intelligent module of drawing for order is taken through SPI interface drive TFT and touch -sensitive screen certainly Download PDFInfo
- Publication number
- CN206193776U CN206193776U CN201621153788.0U CN201621153788U CN206193776U CN 206193776 U CN206193776 U CN 206193776U CN 201621153788 U CN201621153788 U CN 201621153788U CN 206193776 U CN206193776 U CN 206193776U
- Authority
- CN
- China
- Prior art keywords
- touch
- spi interface
- screen
- order
- ft813q
- 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
Landscapes
- Position Input By Displaying (AREA)
Abstract
The utility model relates to an intelligent module of drawing for order is taken through SPI interface drive TFT and touch -sensitive screen certainly, including central control part, SPI interface, power source and power switching circuit, the main chip of central control part adopts the FT813Q chip, power source connects external power source, power switching circuit and central control part, TFT display screen and capacitive touch screen, outside MCU of SPI interface connection and FT813Q chip, the FT813Q chip passes through the IO mouth and connects TFT display screen and touch -sensitive screen respectively. Compared with the prior art, can drive TFT display screen and touch -sensitive screen simultaneously, MCU can directly read touch screen information through the SPI interface, in addition, from taking the drawing for order, the mode that the drawing for order was assigned to accessible SPI interface directly realizes the drawing function needn't transmission one by one showing information in the intelligent module.
Description
Technical field
The utility model is related to electronic technology field, more particularly to one kind can be by SPI interface driving TFT and touch-screen simultaneously
Carry the intelligent module of drawing for order.
Background technology
At present, TFT display applications widely, are mainly applied on substantial amounts of electronic equipment.In TFT display screens most
Conventional interface is rgb interface, and this kind of interface generally needs I/O mouthfuls of more than 20, and minimum is also required to more than 10 I/O mouthfuls
Could realize the display function of color graphics, therefore need to use the more MCU of I/O to be just driven in application, directly
Connect and increased cost.
The product of TFT display screens is installed instantly, main purpose is to realize the display function of color graphics and simply control,
Therefore in the urgent need to realizing intelligent control function using the fewer inexpensive MCU of I/O.
The content of the invention
The utility model is there is provided a kind of intelligent mould for driving TFT and touch-screen by SPI interface and carrying drawing for order
Group, its external interface is SPI interface, saves design space；TFT display screens and touch-screen can be simultaneously driven, user can be straight
Connect SPI interface and read touch screen information, it is not necessary to be individually equipped with touch screen interface；In addition, drawing for order is carried in intelligent module,
Drawing function can be directly realized by by way of SPI interface assigns drawing for order, it is not necessary to the transmission display information put one by one.
In order to achieve the above object, the utility model is realized using following technical scheme：
TFT and touch-screen are driven by SPI interface and the intelligent module of drawing for order is carried, including central control portion,
SPI interface, power interface and power-switching circuit；The central control portion master chip uses FT813Q chips；Power interface
Connection external power source；Power-switching circuit is electrically connected with central control portion, TFT display screens and touch-screen；SPI interface connection is outer
Portion's MCU and FT813Q chip；FT813Q chips connect TFT display screens and touch-screen respectively by I/O port.
The power interface uses AMS1117-3.3 chips.
The SPI interface is four line SPI interfaces.
Compared with prior art, the beneficial effects of the utility model are：
1) external interface is SPI interface, saves design space, reduces production cost；
2) TFT display screens and touch-screen can be simultaneously driven, user directly can read touch screen information by SPI interface, no
Capacitance plate interface must be individually equipped with；
3) drawing for order is carried in intelligent module, drawing can be directly realized by by way of SPI interface assigns drawing for order
Function, it is not necessary to the transmission display information put one by one；
4) MCU can not only transmit display data, control touch-screen by four line SPI interfaces, can also be referred to by passing on
The form of order draws out desired figure.
Brief description of the drawings
Fig. 1 is the structured flowchart of intelligent module described in the utility model.
Fig. 2 is FT813Q chip pins figure described in the utility model.
Fig. 3 is power-switching circuit figure described in utility model.
Fig. 4 is power interface structure schematic diagram described in the utility model.
Fig. 5 is SPI interface structural representation described in the utility model.
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, described in the utility model drive TFT and touch-screen and carry the intelligence of drawing for order by SPI interface
Energy module, including central control portion, SPI interface, power interface and power-switching circuit；The central control portion master chip
Using FT813Q chips；Power interface connects external power source；Power-switching circuit and central control portion, TFT display screens and touch
Touch screen electrical connection；The outside MCU and FT813Q chips of SPI interface connection；FT813Q chips connect TFT display screens respectively by I/O port
And touch-screen.
The power interface uses AMS1117-3.3 chips.
The SPI interface is four line SPI interfaces.
TFT and touch-screen are driven by SPI interface and the method for work of the intelligent module of drawing for order is carried, including it is as follows
Step：
1) data communication interface of MCU, intelligent module and TFT display screens is passed sequentially through into data wire connection, each several part point
External power source is not connected, and the FT813Q chips of central control portion determine output to TFT according to the instruction obtained from SPI interface
The frequency of screen display signal and the format information of output data, the display signal includes various synchronizing signals, when frequency includes
Clock frequency, line frequency, field frequency；
2) intelligent module drives TFT display screens to be shown by two kinds of forms：The first is each that send MCU
Dot array data feeding display buffer is shown；Second is to receive the drawing for order from MCU, directly by intelligent module
Desired display figure is drawn, drawing for order includes cls, described point, setting-out, picture circle, picture square frame, filling pattern and the finger that writes
Order；
3) instruction is assigned by SPI interface, directly content currently displaying in drawing course can be modified；
4) intelligent module is connected and drives touch-screen simultaneously, is set according to user, in real time feeds back touch-screen
Positional information is converted to data, is stored in intelligent module and is called for MCU.
In routine techniques, the figure that user can only show is stored in the display buffer of MCU, if necessary to display
Figure modify, can only also first pass through program calculating, then change buffering area in data, finally again pass through rgb interface
Send these data to TFT display screens.And by SPI interface driving TFT and touch-screen and carry drawing described in utility model
The intelligent module of instruction can directly be modified by way of assigning instruction to currently displaying content, it is not necessary to be counted again
Calculate, change and transmit substantial amounts of data.
The pinouts of the FT813Q chips is as shown in Figure 2；Power-switching circuit figure is as shown in Figure 3；Power interface structure
As shown in figure 4, SPI interface structure is as shown in Figure 5.
The TFT display screens carry rgb interface and are connected with FT813Q chips, and FT813Q chips are with touch display screen by touching
Touch screen interface is connected, and this is routine techniques, is not added with repeating herein.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any one skilled in the art in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (3)
1. TFT and touch-screen are driven by SPI interface and carry the intelligent module of drawing for order, it is characterised in that including center
Control section, SPI interface, power interface and power-switching circuit；The central control portion master chip uses FT813Q chips；
Power interface connects external power source；Power-switching circuit is electrically connected with central control portion, TFT display screens and touch-screen；SPI connects
The outside MCU and FT813Q chips of mouth connection；FT813Q chips connect TFT display screens and touch-screen respectively by I/O port.
It is 2. according to claim 1 that TFT and touch-screen are driven by SPI interface and the intelligent module of drawing for order is carried,
Characterized in that, the power-switching circuit uses AMS1117-3.3 chips.
It is 3. according to claim 1 that TFT and touch-screen are driven by SPI interface and the intelligent module of drawing for order is carried,
Characterized in that, the SPI interface is four line SPI interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153788.0U CN206193776U (en) | 2016-10-31 | 2016-10-31 | Intelligent module of drawing for order is taken through SPI interface drive TFT and touch -sensitive screen certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153788.0U CN206193776U (en) | 2016-10-31 | 2016-10-31 | Intelligent module of drawing for order is taken through SPI interface drive TFT and touch -sensitive screen certainly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206193776U true CN206193776U (en) | 2017-05-24 |
Family
ID=58732607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621153788.0U Active CN206193776U (en) | 2016-10-31 | 2016-10-31 | Intelligent module of drawing for order is taken through SPI interface drive TFT and touch -sensitive screen certainly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206193776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354688A (en) * | 2016-10-31 | 2017-01-25 | 亚世光电股份有限公司 | Intelligent module with drawing commands for driving TFT and touch screen through SPI interface |
-
2016
- 2016-10-31 CN CN201621153788.0U patent/CN206193776U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354688A (en) * | 2016-10-31 | 2017-01-25 | 亚世光电股份有限公司 | Intelligent module with drawing commands for driving TFT and touch screen through SPI interface |
| CN106354688B (en) * | 2016-10-31 | 2024-04-12 | 亚世光电(集团)股份有限公司 | Intelligent module for driving TFT and touch screen through SPI interface and carrying drawing instructions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI590133B (en) | Apparatus and method for driving touch sensor | |
| CN104731399B (en) | It is integrated with the display device and its driving method of touch-screen | |
| US9891747B2 (en) | Multi-touch sensitive display device and method for assigning touch identification therein | |
| CN104571755B (en) | Display device and its driving method with integrated touch panels | |
| CN103513813B (en) | Display device with integrated touch screen | |
| CN103809824B (en) | Touch sensing system and method of controlling power consumption thereof | |
| CN104731402B (en) | Display device with integrated touch screen and its driving method | |
| CN103197791B (en) | Touch sensor integrated-type display and driving method thereof | |
| CN107272921A (en) | Active touch control pen includes its touch-sensing system and touch-sensing method | |
| CN108227980A (en) | Electronic device and its driving method with touch sensor | |
| CN104575413A (en) | Display Device and Method for Driving Same | |
| KR20150027529A (en) | Touch ic and display device integrated with touch screen using the same | |
| CN104750339A (en) | Display device with integrated touch screen and driving method thereof | |
| KR20130104512A (en) | Display device with integrated touch screen | |
| CN103472966A (en) | Capacitance type in-cell touch panel and display device | |
| CN103176647B (en) | There is display device and the touch coordinate data sending method thereof of touch sensor | |
| CN107066122A (en) | Active touch control pen, touch-sensing system and its driving method | |
| KR102054669B1 (en) | Display device and method of driving the same | |
| CN104571683A (en) | Touch sensing system and driving method thereof | |
| KR20130069089A (en) | Liquid crystal display device with interred touch screen and method for driving the same | |
| CN104423763A (en) | Touch screen driving device | |
| CN206193776U (en) | Intelligent module of drawing for order is taken through SPI interface drive TFT and touch -sensitive screen certainly | |
| CN203217515U (en) | Embedded type touch screen and display device | |
| CN203786433U (en) | Array substrate and display device | |
| WO2022193683A1 (en) | Touch display driver apparatus and method, and touch display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |