3.97-inch RGB LCD Display

Basic parameters

This is a 3.97-inch RGB LCD display with a resolution of 480*800 pixels. It features expandable capacitive touch (CST826) functionality and is a TFT LCD screen. The driver IC is ST7701S, and it supports RGB, MIPI, and MCU interfaces, but does not support SPI.

Item	Contents	Unit
Size	3.97	inch
LCM Dimension	57.14(W)96.85(H)1.85(T)	mm
LCD Active Area	* 51.84 86.40	mm
Number Of Dots	480 * RGB * 800	pixel
LCD Type	a-Si TFT
Viewing Direction	IPS
Driver IC	ST7701
Interface Type	RGB
Touchscreen	TBD
Storage Temperature	-30℃~ 80℃

drawing

interface

PIN NO.	symbol	Function
1	LEDK	Backlight cathode
2	LEDA	Backlight anode
3	GND	Grounds
4	VCC	Analog Power Supply fot LCM(2.8V)
5-12	B0-B7	RGB Data Bus
13-20	G0-G7	RGB Data Bus
21-28	R0-R7	RGB Data Bus
29	GND	Grounds
30	DCLK	Pixel clock signal in RGB I/F
31	NC	NC
32	HSYNC	Horizontal sync.Signal in RGB I/F
33	VSYNC	Vertical sync.Signal in RGB I/F
34	DE	Data enable signal in RGB I/F DE mode
35	NC	NC
36	GND	Grounds
37	RESET	Chip reset signal
38	CS	Chip reset pin
39	SCL	Serial interface clock
40	SDI	Serial data input pin in serial interface operation

image

FAQ

I. Minimum Order Quantity for Small-Size TFT (Semi-Custom)

Our MOQ is quite flexible. Small-sized semi-custom TFT displays are generally ordered from 100 pieces, and lower quantities can be negotiated for trial production or sampling projects.

III. Under what circumstances is FAE technical support supported?

Mass production or large-volume projectsWhen orders reach a certain scale
Project development phase：The customer is adapting the screen driver, interface voltage or software
special needs：If you need horizontal screen display, touch solution, etc.

V. How do you ensure smooth communication?

Our sales team is familiar with international trade and the technical specifications of TFT displays. We respond quickly (usually within 2 hours) and confirm every detail using complete technical drawings or physical photos and samples before production.

7. Your factory can directly handle shipping and export documents.

We can arrange shipping terms such as EXW, FOB, and CIF, and work with your designated freight forwarder.

Whether it's air freight, sea freight, or express delivery, we can ensure fast and safe delivery.

II. Minimum Order Quantity for Medium-Sized TFTs (Semi-Customized)

Our MOQ is quite flexible. Medium-sized semi-custom TFT displays are generally ordered from 50 pieces, and lower quantities can be negotiated for trial production or sampling projects.

IV. What projects can be customized?

touch screen: Capacitive and resistive touch screen, AG, AF, AR, etc.
Backlight brightnessIt can meet requirements of over 1000 cd/m². (Minolta color analysis instrument)
Industrial and medical：Need to meet specific industry requirements, etc.

VI. Why choose you?

Many overseas customers prefer to use agents due to considerations such as communication, quality, and international logistics.

Our team has extensive experience and provides a one-stop service—from design, quotation, production, quality inspection, after-sales service, customs clearance to international shipping. You will get factory-direct prices and the convenience of service.

8. Which countries are our main clients?

China, Asia, Europe

LCD Catalog

① Customized display screen

A. External structure, backlight, and interface FPC.
B. Brightness 1000cd/m², interface type, FPCA can be modified.
C. Customers require customized interface conversion between RGB, SPI, MCU, LVDS, and MIPI.

② High brightness

High-brightness backlight technology (≥1000nits), still clearly visible under sunlight.

③ Perspective

A. The viewing angles from top to bottom, left to right are all 60 degrees.
B. IPS full viewing angle, with a viewing angle of 89 degrees on the top, bottom, left, and right.

④ Touch screen

A. Capacitive touchscreen, AR (anti-reflective), AG (anti-glare), AF (anti-fingerprint), TDM display touchscreen OCA optical integration bonding.

B. Four- or five-wire resistive touchscreen, glossy/matte finish customizable.