1.3 inch circular lcd with ST7796DW

1.3 inch TFT LCD display | 320×320 MIPI round display

TFT-H013A1HQIST3N16 is a 1.3-inch diameter circular LCD color display module. Breaking free from traditional screen boundaries, it features a full-circle design with a resolution of 320×320 pixels.From a physical structure perspective, the module’s outline dimensions are 36.12mm (Length) *39.16mm (Width)*1.5mm (Thickness), and its active area (AA) is a perfect circle with a diameter of 33.12mm.

This ultra-thin design allows it to be easily embedded into various compact devices. For core driving, it is equipped with the ST7796DW driver IC and communicates via MIPI, ensuring high-speed and stable data transmission. Additionally, this product provides a 16-pin FPC connection method for easy integration.

If customers need capacitive touch screen, please choose model TFT-H013A1HQIST2C16.

Core Highlights:

1.  IPS Full Viewing Angle Technology, True Color Presentation

This screen utilizes a high-quality IPS panel, delivering a significantly superior visual experience compared to ordinary TN screens. This means that no matter from which angle the user views the circular LCD, there will be no color distortion or sudden drop in brightness. Regarding contrast, the typical value of 1000:1 ensures purer blacks and richer color gradation.

2.  High-Definition MIPI Interface, Rapid Response

In terms of interface technology, the TFT-H013A1HQIST3N16 adopts a 1-Lane MIPI interface. Compared to traditional MCU or RGB interfaces, the MIPI interface offers advantages such as fewer pins, higher speed, and stronger anti-interference capability. For a circular LCD with a 320×320 resolution, the MIPI interface can easily handle high frame rate refreshes, ensuring smooth and fluid motion without smearing, whether playing simple animations or refreshing sensor data in real-time.

3.  Ultra-Thin Design, Ultimate Compatibility

With an overall thickness of only 1.5mm, this screen stands out among similar products. This ultra-thin feature is crucial for portable devices where space is at a premium, such as smartwatches. Furthermore, it operates at 2.8V and can function stably over a wide temperature range of -20℃ to +70℃, making it suitable for various complex industrial and outdoor environments.

Product Applications: Empowering Visual Interfaces for the IoT

• Smart Wearable Devices: This is one of the most core application scenarios. For example, in smartwatches and smart bands, this circular LCD can perfectly mimic traditional analog watch faces while displaying rich information like notifications, heart rate, and step count.
• High-End Instruments and Meters: In the industrial field, some professional instruments, such as handheld multimeters and gas detectors, are beginning to adopt circular LCD screens to break away from conventional designs.
• Smart Home Control Hubs: Equipping devices like smart speakers, smart wall switches, and home security control panels with a circular LCD can instantly enhance the intuitiveness of interaction and create a futuristic technological atmosphere, serving as the “eyes” of the smart home.
• Medical and Handheld Devices: Some portable medical devices, such as fingertip pulse oximeters and handheld ultrasound probes, need to display clear waveforms and data on extremely compact bodies. A circular LCD not only maximizes space utilization but also provides a comfortable grip.

FAQs about 1.3 inch circular lcd

Q1: How effective is the 320×320 resolution of this 1.3-inch circular LCD in actual use? How many colors can it display?

A: With a 320×320 resolution across a 1.3-inch diameter, the pixels per inch (PPI) for this circular LCD are quite high, approximately 347. This means that whether displaying small fonts or complex icons, the edges will be very smooth without any jaggedness. In terms of color, this circular LCD supports 65K/262K colors, capable of presenting very rich and vibrant color transitions, meeting the requirements of most GUI designs.

Q2: Does this product have touch functionality, or what if enhanced durability is needed?

A: The base model (TFT-H013A1HQIST3N16) itself does not have touch functionality, focusing purely on display. If the project requires touch interaction, the manufacturer offers derived series models, such as the TFT-H013A1HQIST2C16, which integrates a capacitive touch panel (CTP) and supports multi-touch. If touch is not needed, the base model circular LCD perfectly meets pure display needs at a lower cost. Meanwhile, if the device needs to be used in harsh environments, a custom-cut tempered glass cover lens can be laminated onto the screen surface to enhance scratch and impact resistance.

Q3: If my product’s shape isn’t a standard flat circle, or if a special FPC length is needed, does this circular LCD support customization?

A: Yes, it does. As a professional industrial-grade display manufacturer,HOTHMI offers flexible customization services. Although the standard circular LCD has a fixed FPC length and pin assignment, the manufacturer can perform mold customization based on customer needs, including:

• FPC Customization: Adjusting length, bending direction, or changing the pin assignment for this circular LCD.
• Cover Lens Customization: For versions that require touch, custom covers with ICON silkscreen printing, added optical bonding, or specific shapes can be provided.
• Cable and Backlight Adjustment: Adjusting backlight brightness or the cable interface type can be done according to specific requirements for the circular LCD.