3.5″ TFT Display Touch Screen, 320×240, 300 Nits IPS LCD Panel
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S035HQ55NS-DL44
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3.5"丨320 x 240 Pixels
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IPS with All viewing angle
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Capactive touch panel
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24-bit RGB
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None
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-20°C~+70°C
Product Description
In terms of optical performance, it features a resolution of 320×240 (QVGA), a typical brightness of 300 cd/m², and a contrast ratio of 700:1, ensuring clear readability of displayed content even in complex industrial environments.
For electrical characteristics, the module is equipped with an ST7272A driver chip and supports a 24-bit RGB parallel interface for stable image data transmission. It operates within a power supply voltage range of VCC 3.0-3.6V (typical value: 3.3V), compatible with the power configurations of most mainstream embedded systems.
In structural design, the touchscreen cover glass has a thickness of 1.8mm for good protection, and the perimeter is treated with PMS black masking film technology, enhancing both aesthetic appeal and appearance consistency.
Regarding environmental adaptability, S035HQ55NS-DL44 has an operating temperature range of -20°C to +70°C, meeting industrial-grade wide-temperature application standards. It is widely suitable for various industrial display scenarios such as automation equipment and instrumentation.
Product Specification
| LCD Size | 3.5 inch |
| LCD Resolution | 320*240pixels |
| LCD Active Area | 70.08 x 52.56 (mm) |
| LCD Luminance | 300nits |
| LCD Viewing Angle | IPS with All viewing angle |
| LCD Interface | 24-bit RGB |
| LCD Controller | ST7272A |
| LCD Connection Type | FPC: 54PIN with 0.5 pitch ,Connector (FH12-54S-0.5SH) |
| LCD Backlight Array | with 6 LED on each string |
| LCD Backlight Controller | None |
| LCD Backlight Driving | IF =20mA ,VF =16.2~20.4V |
| LCD Outline Dimension | 76.90 x 63.90 x 3.26 (mm) |
| CTP structure | LENS |
| CTP interface | None |
| CTP Controller | None |
| CTP Outline Dimension | 76.90 x 63.90 x 1.80 (mm) |
| CTP Connection Type | None |
| Product Outline Dimension | 76.90 x 63.90 x 5.37 (mm) |
| Product Operation Temp | -20°C~+70°C |
| Product Storage Temp | -30°C~+80°C |
Recommendations for use
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LCD Customization
In LCD products, backlight does not only represent what we often call brightness and LED series and parallel connection. From the design point of view, backlight also includes colour gamut, structure(car structure, ultra-thin structure), screw hole positioning post(LCD side or back), NTC overheat protection, external backlight control option, and LED lifetime. In terms of materials, backlight includes light guides, backlight FPC, reflectors, diffusers, frames, and so on. CDTech can provide evaluation and customisation services for all of these options.
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Touch Panel Customization
Cover glass is an essential component of a capacitive touch screen, used to protect the touch sensor and LCD, preventing them from being exposed and damaged by sharp objects. Different applications have various requirements for the coverglass, such as shape, double-layer structure, thickness (0.7~6.0mm), material(Gorilla, AGC, Panda), and special processing technologies (like AG/AF/AR/3A, UV resistance) 2D chamfering, IK rating, etc.
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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.
Related Products
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. |
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7F, Bldg 2, Jiancang Technology Park, No.11 Songgang Blvd., Baoan, Shenzhen
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