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480X480 Square LCD Screen 50Pin 3.95'' IPS TFT Display With ST7701s

Minimum Order Quantity : 1PCS Price : /
Packaging Details : All the products are packed in right way to keep it safe. For small sizes of products we use tray + carton, For bigger sizes we use foam slot + carton. we also design packages according to customers' requirements Delivery Time : 7-15 working days
Payment Terms : T/T Supply Ability : 300Kpcs/month
Place of Origin: ShenZhen, China Brand Name: Chenghao/Oem
Certification: ROHS、ISO9001、CE Model Number: CH400WV17B-CTBA

Detail Information

Product Name: 480*480 Square Lcd Screen Viewing Direction: 80/80/80/80
CTP Operation Voltage: 2.8V-3.3 V The Cover Hardness: 6 H
High Light:

480X480 Square LCD Screen


300 cd/m2 Square Lcd Screen


ST7701s IPS TFT display

Product Description

480*480 Square Lcd Screen 50Pin 3.95 IPS TFT Display With ST7701s


1. Specification of 4 inch touch screen module 


Module type TFT+CTP
Module size
86.0(W)×86.0(H)×3.55(T) mm
TFT/CTP Active area
71.856(W)×70.176(H) mm
LENS Viewing area
68(W)×68(H) mm
Driver IC
Back Light
8pcs White LED
3line SPI + 24bit RGB


2. Description of 3.95 inch touch screen module 


chenghao is an LCD display supplier, providing OEM/ODM services for global display users. CH400WV17B-CTBA is an All Black Effect Touch Screen Display customized by chenghao for customers. It is a color active matrix thin film transistor (TFT) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device. It mainly includes a All Black Effect glass cover, a tft lcd panel, a driver IC, a backlight and FPC, etc.

(1) The glass cover is All Black Effect. Even when the screen is off, the display surface still looks pure black, and the components of the touch screen module cannot be seen through the glass cover.

480X480 Square LCD Screen 50Pin 3.95''  IPS TFT Display With ST7701s 0

(2) The Tft Lcd Panel has a 3.95” ( square screen ) diagonally measured active display area with 480(RGB)x480 dot resolution.

(3) The ST7701S mounted on the glass is used as the driver IC of the Touch Screen Module, and is interconnected with other components through the FPC. By inputting RGB signals to the driver IC, this Touch Screen Module can display 16M colors.

(4) The Back Light has 16 parallel white LEDs. By inputting IF=40mA and VF=25.6V to BL, the display screen can generate a Luminance of 300 cd/m2.

(5) 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 of 4 inch tft touch screen module


(1) Display Type : 3.95inch TFT+CTP
(2) Viewing Direction : 80/80/80/80
(3) Display Mode : IPS / Transmissive / Normally Black
(4) Operating Temp : -20~70 ℃
(5) Storage Temp : -30~80 ℃
(6) Unmarker Tolerance: ±0.20
(7) Protection : ROHS

480X480 Square LCD Screen 50Pin 3.95''  IPS TFT Display With ST7701s 1



4. Caution for operation


It is an indispensable condition to drive LCD’s within the specified voltage limit since the
higher voltage then the limit cause the shorter LCD life.
An electrochemical reaction due to direct current causes LCD’s undesirable deterioration, so
that the use of direct current drive should be avoided.
Response time will be extremely delayed at lower temperature then the operating
temperature range and on the other hand at higher temperature LCD’s how dark color in
them. However those phenomena do not mean malfunction or out of order with LCD’s,
which will come back in the specified operation temperature.
If the display area is pushed hard during operation, some font will be abnormally displayed
but it resumes normal condition after turning off once.
A slight dew depositing on terminals is a cause for electro-chemical reaction resulting in
terminal open circuit.
Usage under the maximum operating temperature, 50%Rh or less is required.



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