1. Specification

2. Description

ChengHao Display model CH400WV17A is a color active matrix thin film transistor (TFT) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device. This model is composed of a TFT LCD panel, a driving IC, a back-light, and FPC.

This TFT LCD has a 4.0 ( Square screen ) inch diagonally measured active display area with 480*480 pixel .

The driver used for this project is the ST7701S and can display 16.7M colors by signal input. The driver is mounted on the glass and the interconnection via FPC including components to drive the display module. Support SPI+RGB interface.

In addition, FPC can also be customized according to customer requirements, such as modifying back-light and FPC structure, interface definition, etc.

RoHS Compliance & Halogen Free.

3. Drawings

Notes:
(1) Display Type : 4inch TFT
(2) Viewing Direction : All Viewing Angle
(3) Lcd Drive IC : ST7701S
(4) Polarizer Mode : Transmissive/ Negative
(5) Operating Temp : -20~70 ℃
(6) Storage Temp : -30~80 ℃
(7) Unmarker Tolerance: ±0.20
(8) Protection : ROHS

4. Quick Detail

* LCD name: Custom 4 Inch Tft Lcd Spi Interface 480x480 Dot Matrix Lcd Display Module
* Part No.: CH400WV17A
* Size : 4.0 inch
* With touch panel or not: No
* Support Touch type: Capacitive / Resistive Touch Panel
* Display type: 4"TFT
* Resolution (pixels): 48(RGB)*480
* Viewing direction : 80/80/80/80
* TFT Controller IC : ST7701S

* LCM outline : 74.83(W)*78.98(H)*1.98(T)mm

* Active area : 71.856(W)*70.176(H)mm

* Interface : SPI+RGB

* Operating temperature : -20~+70 ℃

* Storage temperature : -30~+80 ℃

* Back Light : 8 White LED

* Weight : TBD g

* Display mode: IPS/ Transmissive/ NormallyBlack
* Luminance: 350 cd/m2
* Connecting type: Connector type
* IF=40 mA , VF=12.8±1.2 V
* LED Life span: 20000h

5. Application

6. Our Service

1.We provide one-year product after-sales guarantee service to all customers who purchase our products.
2. For any technical problems encountered by customers in the process of testing or using our products, our technical team will provide customers with remote online technical support services at any time.
3. We are a factory-type supplier with ISO certification. Our products on sale have undergone strict quality inspection and testing before shipment, and have also passed CE/ROHS certification.
4. We have a professional after-sales service team, which can provide strong guarantee and logistical technical services for your orders.

5. Replacement within 30 days after the shipment of products from us due to products' problems.

8. FAQ

Q1: Do you accept customization displays and touch screens?
A: Sure, you can customization the FPC,Backlight and the touch screen.

Q2: What type of interface is your display screen?
A: Small sized of displays generally support SPI,MCU,RGB,MIPI.Medium sized displays generally support LVDS,MIPI,EDP.Different specifications use different interfaces.

Q3: Do you used capacitive touch screen or resistive touch screen.
A: We have capacitive touch screen and resistive touch screen .

Q4: What is your sample policy?
A: If there is stock,you can sample at any time,if there is no stock,it will take some time,and then wait for the materials to come back to sample. But the customer needs to pay the sample fee and express fee.

Q5: Do you accept pay 30% in advance?
A: Yes,we do.We can start to prepare your goods when receive 30% payment, and send them after get the rest 70% payment.

Q6: What payment terms you accept?
A: We accept Paypal, T/T, Western Union, Wechat, Alipay, in Cash (RMB or USD).