3.97-inch 320x480 tft display

The 3.97-inch 320×480 tft display module has a slender display ratio and high resolution and is especially suitable for small instruments and equipment that require display images. 

 > 3.97-inch 320×480 tft display, SPI interface TN mode
3.97 TFT LCD

Main parameters of 3.97-inch tft display

ITEMStandard valueUNIT
LCD TypeTFT Negative Transmissive
Driver Elementa-Si TFT Active matrix
Number of Dots320*(RGB)*480Dots
Pixel ArrangementRGB Vertical Stripe
Pixel Pitch (W*H)0.174*0.174mm
Active Area55.68*83.52mm
Viewing Direction12 clock
Control ICST7796s
Module Size(W*H*T)60.88(W)*94.57(H)*2.5±0.1(T)mm
Back LightWhite LED

Download relevant technical documents

ST7796 data sheet for small lcd display

Specification of 3.96-inch small lcd display

Circuit diagram for 3.96-inch small lcd display

FPC custom service

FPC/cable/interface customization

Customize the length, width and thickness of FPC or cable, adjust the pin arrangement according to the interface type, and select the appropriate connector. Make your display or circuit board simple and safe with an excellent FPC solution.

Touch display customization service

Touch screen or cover glass added

A touch screen can be added according to your requirements, there are three options: resistive touch screen, capacitive touch screen, infrared touch screen. Or add protective glass as needed

Optical Measuring Instruments

Customized Display Optical Parameters

Display screens with different optical parameters can be designed according to needs, such as brightness, color gamut, response time, gamma and other parameters, and anti-glare, anti-fingerprint coatings, etc. can also be added

HDMI to MIPI,RGB,LVDS adapter board

Customized HDMI to MIPI, RGB, LVDS boards

The circuit board we designed can convert the interface of your display into an HDMI interface. If your product does not have any display control capabilities, you can use our serial display and only need to use simple commands to control the displayed content through RS232/458

3.97-inch tft display drawings and interfaces

3.97-inch tft display, resolution 320×480, TN display mode, the best Angle of view is 6 o ‘clock, drive IC is ST7796, brightness is 100cd/m², Angle of view is 160°. The backlight uses 8 lights in parallel, driving voltage is 3V, and driving current is 120mA.

The outline drawing is as follows:

Interfaces are defined as follows:

Pin Symboldetail
1 LEDKPower supply Cathode input for backlight
2LEDAPower supply Anode input for backlight
4VCIPower supplyto the internal Analog(2.65V-3.3V)
5-12R0-R7Data bus for red
13-20 G0-G7Data bus for green
21-28 B0-B7Data bus for blue
30CLKDot clock signal for RGB interface operation
31DISP/NCNot connect
32HSYNCLine synchronizing signal for RGB interface operation
33VSYNCFrame synchronizing signal for RGB interface operatione
34DEata enable signal for RGB interface operation
35SDOSerial data output pin used for the SPI Interface
37RESETReset signal pin
38SDASerial data input pin in serial bus system interface
39SCLKSCL: Serial clock input for SPI interface.
40CSChip select pin 

3.97 -inch 320x480 tft display application cases

3.97-inch LCD display with high resolution, MIPI interface, faster refresh rate, richer color and long service life. Can be used for video playback devices, mobile phones, sports DV, etc.

The 3.97-inch LCD displays are excellent, reliable and proportioned for video playback, and can be used for scanning and translating pens, radar detectors, motion DV, and more.

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