4.0 Inch Square Touch Screen Display, 500 Nits, OCA + AF Technology

4.0 Inch Square Touch Screen Display, 500 Nits, OCA + AF Technology

Model :
S040HWV08HN-FC18-AF
Size :
4.0"丨480 x 480 Pixels
Display Type :
IPS with All viewing angle
Touch Panel :
Capacitive with l²C interface
LCD interface :
RGB
CTP interface :
IIC
Operation Temp :
-20°C~+70°C
Driver IC :
ST7701S-G5
CTP Controller :
GT911
Resources :
2D Drawing

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Product Description

This 4.0-inch square LCD display employs advanced OCA (Optically Clear Adhesive) full lamination technology and AF (Anti-fingerprint) oleophobic coating. The seamless bonding between the cover glass and the liquid crystal panel significantly reduces reflectivity, enhancing display clarity and touch sensitivity. With support for 5-point capacitive touch, it caters to multi-finger interaction requirements, making it ideal for complex human-machine interface scenarios.

Active Area (AA): Measuring 71.86×70.18mm, it offers ample visible space.

Physical Dimensions: The ultra-thin square design, sized at 87.8×87.8×3.95mm, facilitates easy integration.

Optical Performance: Boasting a 480×480 resolution with a pixel density of 163PPI, the IPS (In-Plane Switching) wide viewing angle technology ensures clear visuals from all directions up to 178°. Its 500 nits high brightness enables optimal performance in various lighting conditions, both indoors and outdoors.

Touch Solution: Equipped with the GT911 touch control chip, it enables stable data transmission via the I²C communication protocol. The built-in ST7701S display driver chip supports high-speed image transfer through the RGB interface.

Environmental Adaptability: Operating within a temperature range of -20°C to +70°C, it meets the requirements of industrial-grade applications.

Unique Design

The display cover features two semi-transparent through-holes, designed to accommodate sensor or indicator installations, providing flexible expansion options for system integration.

Application Areas

With its high reliability and integration advantages, this display is widely used in industrial control terminals, smart home control panels, instrument human-machine interfaces, and other scenarios, helping to create efficient and convenient interactive experiences.

Product Specification

LCD Size	4.0 inch
LCD Resolution	480*480pixels
LCD Active Area	71.86 x 70.18 (mm)
LCD Luminance	500nits
LCD Viewing Angle	IPS with All viewing angle
LCD Interface	RGB
LCD Controller	ST7701S-G5
LCD Connection Type	FPC: 45PIN with 0.3 pitch,Connector (FH26-45S-0.3SH)
LCD Backlight Array	2 Strings with 5 LED on each string
LCD Backlight Controller	None
LCD Backlight Driving	IF=40mA，VF=13.5~17V
LCD Outline Dimension	77.66 x 78.97 x 2.3 (mm)
CTP structure	G+G
CTP interface	IIC
CTP Controller	GT911
CTP Outline Dimension	87.80 x 87.80 x 1.45 (mm)
CTP Connection Type	FPC: 10PIN with 0.3 pitch
Product Outline Dimension	87.80 x 87.80 x 3.95 (mm)
Product Operation Temp	-20℃ ~ +70℃
Product Storage Temp	-30℃ ~ +80℃

Recommendations for use

LCD Customization

We offer comprehensive FPC customization services, including arbitrary size adjustments, various connector types, soldering types, and plug-in types. The main focus is on the customization of pin definitions. We source LCD cells and ICs to perform our own COG/FOG (FPC on COG) bonding, allowing us to support custom FPC designs. We also provide additional requirements like single power supply (VDD), backlight LED driver PWM functions, and protective circuits/ different material shielding film for EMI/ESD and EMC, and epoxy resin designs around ICs for automotive applications.
Touch Panel Customization

We provide custom cover lens solutions with various shapes, thicknesses (ranging from 0.55mm to 6.0mm), and surface treatments such as AG (Anti-Glare), AF (Anti-Fingerprint), and AR (Anti-Reflection). We can adhere foam to the cover surface and ring-type foam adhesive (like 3M VHB/Tesa) on the back for better installation and dust/water resistance. For UV resistance in outdoor applications, we use special UV-resistant inks or ceramic prints on tempered glass. We can also customize higher-spec cover lenses, like Gorilla and Dragontrail, for IK rating requirements.
Usage Guidelines

CDTech’s LCD products have high quality reliability, allowing customers to use them for a long time without easily breaking down. However, we also suggest that customers will follow the correct operation or storage methods when using them: try to avoid direct contact with the FPC gold fingers with hands to prevent oxidation. It is recommended to wear anti-static gloves or finger cots for operation, and ensure effective grounding. When the products are not used for a long time, they should not be stored in high-temperature and high-humidity environments for a long time, but should be stored in a warehouse with appropriate temperature and humidity.

Quality Standards

CDTech adheres to a Zero Defect Quality Policy, which includes not only product quality but also the work quality of all departments in the company. This will make our products, quality, service, and technical support exceed your expectations.

All of our products, from evaluation, design, production, inspection to after-sales service, follow the following standards in the process.

Project Evaluation	Comprehensively and accurately understand and evaluate customer requirements, including performance, specifications, usage environment, special characteristics, safety characteristics, etc. Identify and evaluate potential risk factors.
Product Design	Strictly follow the requirements of ISO9001 and IATF16949 systems for product design, while also considering material selection, manufacturability and assemblability, past successful product structures and experiences to ensure effective implementation in subsequent production. In the sample stage, verify according to the reliability test requirements in the specification.
Production Control	All important processes of LCM and CTP are produced by CDTech itself, ensuring effective control and assurance of the production process. Strictly follow the production process to ensure that each operation meets established standards, select high-quality raw materials that meet specification requirements, and ensure the stability of product performance.
Production Inspection	All CDTech products have undergone 100% functional testing and visual inspection to ensure that they meet design requirements and customer expectations.
After Sales Service	We have established a rapid response mechanism to promptly handle customer feedback and complaints. Usually, we can reply to customers within 1 day about the possible causes of defects and temporary measures, issue a defect judgment report within 3 days of receiving the defective product, and issue an 8D analysis and improvement report within 7 days.
Product Lifetime	The lifetime of our product is determined by the lifetime of the LED in the backlight, usually 30000 hours or 50000 hours. Please refer to the specifications for details.
Warranty period	The warranty period of CDTech is one year according to LCD industry standards. Within one year, any product with any problems can receive free after-sales service and returns. After one year, CDTech can still provide paid after-sales service.
ESD Protection	All devices are designed and handled in consideration of ESD protection. This includes ESD-SAFE packaging within anti-static bags, wraps, and trays. Customers are reminded to always follow ESD safety to best protect the devices.

Email
sales@cdtech-lcd.com
Address
7F, Bldg 2, Jiancang Technology Park, No.11 Songgang Blvd., Baoan, Shenzhen

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