3.97 Inch 480x800 SPI RGB 24 Bits Interface IPS TFT LCD Screen
3.97 Inch 480x800 SPI RGB 24 Bits Interface IPS TFT LCD Screen
Product Specifications
| Product: | 3.97 Inch (4") TFT Screen | Resolution: | 480x800 Dots |
| Driver IC: | NT35510 Or Equivalent | Outline Dim.: | 57.14x96.85x2.2 Mm |
| Touch Screen: | Without Touch Screen (Optional) | Cover Glass Dimension: | Customizable |
| Viewing Direction: | IPS All Viewing Angles | Interface: | SPI + RGB 24 Bits (customizable) |
| Connection: | Plugging (customizable) | Pin Number: | 51 Pins (customizable) |
| Surface Luminance: | 400 Cd/m²(nits) | Backlight Type: | White LED |
Product Introduction
This is a 3.97-inch (commonly known as 4-inch) IPS-TFT color liquid
crystal display screen. The core specifications are 480×800 pixels
(WVGA). It adopts the SPI + RGB 24-bit dual interface design, and
is a mid-to-high-end small-sized module that balances display
effect and connection flexibility.
Panel Technology: Utilizes IPS (In-Plane Switching) wide viewing angle technology,
combined with TFT active matrix driving. The viewing angles from
top to bottom and left to right can reach over 80°, with small
color deviation and excellent picture consistency.
Resolution and Color: 480×800 pixels, RGB 24-bit true color, capable of displaying 16.7
million colors. The color reproduction is accurate, the picture is
fine, and the pixel density is approximately 235 PPI.
Interface Characteristics: Supports SPI serial interface (simple control, fewer wiring) and
RGB 24-bit parallel interface (high-speed transmission, suitable
for dynamic pictures), and the driving IC commonly used includes
NT35510, ST7701S, etc.
Physical Parameters:
Dimensions: 57.14 × 96.85 × ~2.2 mm
Effective Display Area: 51.84 × 86.40 mm
Brightness: Typical 300-400 cd/m² (customizable for high-brightness
models)
Operating Voltage: 2.6-3.3V (compatible with 3.3V microcontrollers
/ embedded systems)
Temperature Range: Industrial grade -20℃ ~ +70℃ (some models
support -30℃ ~ +80℃)
Optional Configurations: Can integrate capacitive touch screen (PCAP), supporting
multi-touch, suitable for interactive devices.
Main Applications
- Industrial Control and Handheld Devices - Display interfaces for industrial PDAs, data collectors,
portable testers, multimeters, oscilloscopes, etc. Parameter and
status display for small PLCs, frequency converters, servo drives.
Outdoor / Field Operation Terminals, relying on IPS wide viewing
angle and wide temperature stability.
- Smart Home and Internet of Things (IoT) - Smart control panels, temperature controllers, fresh air / air
conditioner controllers, security monitoring displays. Interactive
interfaces for smart locks, access control systems, environmental
monitors.
- Medical and Health Equipment - Portable monitors, blood glucose meters, blood pressure
monitors, infusion pumps, home physiotherapy equipment. Small
diagnostic instruments, requiring accurate colors, wide viewing
angles, and low power consumption.
- Consumer Electronics and Creative Development - Handheld game consoles, retro console modifications, digital
photo frames, smart speakers. Projects for makers such as Raspberry
Pi / Arduino: Mini displays, sensor data visualization, small-sized
interactive screens.
- Vehicle and Commercial Equipment - Portable navigation, vehicle recorders, rear entertainment
screens. Cash register POS, queue callers, elevator floor displays,
small advertising machines.
- Communication and Security - Three-proof walkie-talkies, law enforcement recorders, sports
cameras, local preview screens for security cameras.
Technical Drawing
Pin Description
| NO. | PIN NAME | I/O | Description |
|---|
| 1 | LEDK | O | LED Cathode |
| 2 | LEDA | O | LED Anode |
| 3 | YU | I | Touch Panel input signal |
| 4 | XL | I | Touch Panel input signal |
| 5 | YD | I | Touch Panel input signal |
| 6 | XR | I | Touch Panel input signal |
| 7 | GND | I | Ground |
| 8 | VCI | I | Power Supply 2.8V Voltage |
| 9 | NC | - | Set Open |
| 10 | IOVCC | I | Power Supply 1.8V Voltage |
| 11 | TE | I | Tearing effect output |
| 12 | SDO | - | SPI Interface Input/output Pin |
| 13 | SDI | I | SPI Interface Input/output Pin |
| 14 | WR/SCL | - | SPI Clock Signal |
| 15 | CSX | I | Input pin for chip selection signal |
| 16 | RESX | I | LCM Reset input signal |
| 17-40 | DB23-DB0 | I/O | Display Data I/O |
| 41 | ENABLE | I | Data enable signal in RGB I/F mode 1. |
| 42 | DOTCLK | I | Clock Signal to Sample each date |
| 43 | HSYNC | I | Horizontal Synchronizing Signal |
| 44 | VSYNC | I | Vertical Synchronizing Signal |
| 45 | LEDPWM | I | This pin is connect to the external LED driver. |
| 46 | LWDON | I | Used for turning On/Off external LED backlight control. |
| 47 | RS | I | Register select signal |
| 48 | RD | I | Read strobe signal input pin |
| 49 | IM0 | I | Select the interface mode |
| 50 | IM1 | I | Select the interface mode |
| 51 | GND | I | Ground |
Our Services
- Free repair within one year after the shipment of products from us.
- Replacement within 30 days after the shipment of products from us
due to products' problems.
- We can print your logo and stick your model No. on the products.
- We have long cooperation with many shipping companies and our
export volume is large. The shipping companies can offer us good
discounts.
- Professional technician supports. We have a good after-sales
service team. They can solve your problems in time.
- All goods will be inspected and tested by our engineers and QC/QA
before packing and shipment.
- Customers satisfactory is most important to us. If you have any
problem or questions regarding our transaction, please contact us
by Email or online. It will be responded within 24 hours.
- Products pictures only for your reference. Please kindly refer to
the specification. We can provide the products based on the
specification, or you can offer your own specification or drawing.
We can customize all kinds of LCD displays for you.
Frequently Asked Questions
1. I want the LCD display 8 digits and the outline size is
65x30x2.8mm………?
Answer: No problem. Firstly, please kindly send us your
specification/drawing paper. If you have not the specification, you
can also provide your samples; we will recommend the suitable one
if it is standard products. Or we can customize for you based on
your own requirement.
2. This LCD is just what we want, but it is big size, do you have
any smaller size? And the display content need to be changed a
little.
Answer: For the segment type LCD module, if you need modify the
outline size or display content, a new LCD glass module is need. We
have to open new tooling for you.
3. This LCD display is HTN type, but I want STN type, can you make?
Answer: That's all right. We can change for you as per you request.
4. I want customize a new LCD module. Can you do?
Answer: Yes, we can. Please send your drawing paper. If you have
not, please advise me the outline size of the LCD display, display
information (Glass thickness, Polarizer, Display Type, Connector
mode, Storage Temp. Operating Temp. Supply Voltage, Viewing
direction, drive condition), we can customize for you.
5. What is leading time for tooling?
Answer: General speaking, it will cost 15 to 25 days after drawing
paper confirmation and tooling charge payment, we can report you
the exact time when you confirm the drawing paper.
6. Can you send us samples for checking?
Answer: Yes. Samples order is available.
7. What is the Leading Time?
Answer: If we have stock for the standard ones, the leading time is
one day after payment. If it is the mass production for special
ones, the leading time is about 15-30 days. Suppose we can finish
earlier, we will report the information in advanced.
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