3.9 inch CAN Bus TFT Display with Projected Capacitive Touch (Industrial Application)
Model No. WL0F00039000QGAAASB00
►TFT Size: 3.9"
►TFT Resolution: 480×128 dots
►TFT View Direction: 6 o'clock
►TFT Touch Screen: Capacitive Touch Panel
►TFT P/N: WF39QTIBSDBG0#
►Communication Interface: CAN bus
DESCRIPTION
WL0F00039000QGAAASB00 is a 3.9" Smart Display CAN series TFT which is defined as a slave device, that is controlled by master device via CAN bus command to render display content on the display screen and return touch event data with protocol objects. WL0F00039000QGAAASB00 is integrated with a standard 3.9 inch Bar TFT module WF39QTIBSDBG0 and 4-layers PCBA with built-in firmware code which is developed by Winstar. This 3.9" Smart Display CAN series TFT is an easy-to-use product which allows customers to develop projects rapidly in cost-effective way. This 3.9” Smart Display can use computer with USB2CAN dongle or Raspberry Pi interface (PiCAN2) as HOST platform. Winstar already developed a Windows IDE for Smart Display GUI design. Winstar GUI builder software is designed for customers to simulate their GUI design in advance by using the drag-and-drop Widget preview function; furthermore, customers can create their ideal GUI by themselves by using this software. Winstar GUI builder software is supporting Windows system only; it can fulfill What You See Is What You Get (WYSIWYG).
Winstar Smart Display CAN Series offers an out-of-the-box CANopen development experience that will lower your development costs and speed your time-to-market expectations. The CanTFT comes with standard UI objects to get customers project off the ground quickly. If customers need custom UI objects support, our engineers are here to help. Send over your contents in PNG/JPG format, we will customize a new set of UI objects to you.
Winstar Smart Display Can Series is really a "smart" choice for customers. There are many important features and functions for the new released 3.9" smart display CAN TFT as below:
- DC 5V working voltage
- 3.9“ Bar TFT WF39QTIBSDBG0.
- Supports PCAP touch screen.
- Power-On Self-Test & Splash screen.
- CAN bus Interface.
- Supports CANopen protocol, default baud rate at 250KB.
- Built in flash memory, store the font and Object Dictionary Data.
- Long transmission distance.
- Strong anti-interference ability.
- Built-in Buzzer.
- Meets the 1U size for rack mounting.
- Operating temperature -10℃~70℃
- Supports Multi-master controlled.
- Design the UI without writing a line of code by winstar GUI builder! (►Link to GUI Builder Introduction)
Try before you buy! Contact us to download Winstar GUIBuilder application.
DRAWING

Bom
Item | Description |
---|---|
LCM | WF39QTIBSDBG0# |
PCBA | 4 layer FR4, 1.6mm |
SPECIFICATIONS
General Specifications
Mechanical Data
Item | Standard Value | Unit |
---|---|---|
LCD panel | 105.5(W) x 37.0(H) x 5.13 | mm |
PCB | 157(W) x 42(H) x 1.6 | mm |
Housing outline | NA | mm |
General information
Item | Standard Value | Unit |
---|---|---|
Operating voltage | 5 | Vdc |
Communication Interface | CAN bus differential ± 3.3 | Vpp |
Size | 3.9 | inch |
Dot Matrix | 480 x 128 x RGB (TFT) | dots |
Module dimension | 105.5(W) x 37.0(H) x 5.13 | mm |
Active area | 95.04 x 25.34 | mm |
Dot pitch | 0.066(W)x 0.198(H) | mm |
Backlight Type | TFT, Normally White, Transmissive | |
Viewing Angle | 6 o'clock | |
Aspect Ratio | Bar Type | |
With /Without TP | With Projected Capacitive Touch Panel (PCAP) | |
Surface | Glare |
Absolute Maximum Ratings
Item | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Operating Temperature | TOP | -10 | - | +70 | ℃ |
Storage Temperature | TST | -10 | - | +70 | ℃ |
Electrical Characteristics
Operating conditions:
Item | Symbol | Condition | Min | Typ | Max | Unit |
---|---|---|---|---|---|---|
Supply Voltage For Analog | VCI | - | 4.4 | 5 | 5.6 | V |
Interface Operation Voltage | IOVCC | - | 3.234 | 3.30 | 3.367 | V |
Supply LCM current | ICI(mA) | - | - | 350 | - | mA |
Interface Pin Function
CN1 definition
Pin | Symbol | Function | Remark |
---|---|---|---|
1 | +5V | Power supply 5V input | Input |
2 | DGND | GND for USART interface | Output |
3 | GND | Power supply GND input | Input |
4 | D- | Differential signal D- | I/O |
5 | CAN High | CAN bus D+ | I/O |
6 | D+ | Differential signal D+ | I/O |
7 | CAN Low | CAN bus D- | I/O |
8 | +5V | 5V output for USART interface | Output |
9 | DGND | GND for USART interface | Output |
10 | NC | ||
11 | DGND | GND for USART interface | Output |
12 | NC | ||
13 | NC | ||
14 | NC | ||
15 | NC | ||
16 | NC |
CN2 definition
Pin | Symbol | Function | Remark |
---|---|---|---|
1 | NC | ||
2 | VMCU | Power supply 3V3 input | Input |
3 | NC | ||
4 | TAG_SWCLK | JTAG Serial Wire Clock interface | Clock |
5 | NC | ||
6 | GND | GND for USART interface | I/O |
7 | NC | ||
8 | TAG_SWDIO | JTAG Serial Wire debug Data Input/Output interface | I/O |
9 | NC | ||
10 | NRST | Reset input Connect this pin to the (active low) reset input of the target MCU. |
|
11 | NC | ||
12 | TAG_SWO | JTAG Serial Wire trace Output - Optional interface | Output |
13 | DGND | GND for USART interface | I/O |
14 | DGND | GND for USART interface | I/O |
15 | +5V | Power supply 5V input | Input |
16 | NC |
CN3 definition
Pin | Symbol | Function | Remark |
---|---|---|---|
1 | NC | ||
2 | NC | ||
3 | NC | ||
4 | NC | ||
5 | NC | ||
6 | NC | ||
7 | NC | ||
8 | NC |
Display Usage
Functional description
Smart Display can be used to display the coordinate, status and data information provided by the connected HOST device. Customers can configure the position coordinates they want to display in normal operation mode. The Display is designed to be easily connected to a controller network, and to operate with minimum setup or knowledge of the SDO configuration on the controllers.
Splash Screen
The default splash image is shown below.

Acquisition of Displayed Data
The Smart Display can acquire the data that it displays either using the CANopen SDO protocol, or using the CANopen PDO protocol. On Pre-operational mode, customers can set the coordinates of objects through SDO; On operational mode, customers can send data of objects through PDO.
Configuring the Display
Winstar Smart Display CAN series offers an out-of-the-box CANopen development experience that will lower customers' development costs and speed time-to-market expectations. The Smart Display can use wide-temperature are designed to support control applications in harsh operating conditions, which designed to be connected to a variety of different situation combinations, such as automotive, marine, power generation and oil-and-gas. The Smart Display comes with standard UI objects to get customers project off the ground quickly. If customers need custom UI objects support, our engineers are here to help. Send over your contents in PNG/JPG format, we will send over a new set of UI objects within 3~5 working days. The Smart Display is defined as a slave device, which is controlled by master device via CAN bus command to render display content on the display screen and return touch event data with protocol objects.
Example Screen Layout (Industry application)
Example Layout
The screen layout described in this section is intended to demonstrate the settings of screen items that can be used in an industry application situation.