1.54-inch TFT applied to smart wearable devices

 1. Characteristic description 

Selecting cost-effective and technically mature industrial-grade LCD glass tailored to application scenarios and client requirements, the display measures just 31.52mm × 33.72mm with a thickness under 2mm. This enables seamless integration into space-constrained devices such as smartwatches and micro-sensors. Its 27.72mm × 27.72mm pure square AA zone perfectly aligns with the compact square design demands of smart wearables and home appliances. Compared to circular screens, this format facilitates clearer information zoning (e.g., time, data, notifications in three distinct areas), enhances visual recognition, and particularly suits minimalist device aesthetics. home appliances. Compared to circular displays, it facilitates easier information zoning (e.g., time, data, and notification layouts), enhancing visual recognition. It particularly suits minimalist device designs, fulfilling the dual requirements of "device miniaturisation + display clarity".

Achieving 240×240 resolution within a compact 1.54-inch footprint delivers a pixel density of 219 PPI. Text, charts, and icons display with sharp edges and no jaggedness, enabling clear presentation of multiple data sets (e.g., health metrics, device parameters). This offers an 80% improvement in information readability compared to 128×128 resolution modules of the same size.

With 450 nits brightness and 900:1 contrast ratio, its luminosity significantly surpasses the average for square displays of this size (typically 300 nits). Content remains clearly visible in outdoor sunlight or indoor bright lighting without additional shading, making it suitable for wearables and outdoor medical diagnostics. Outdoor readability improves by 60% compared to standard brightness modules, meeting demands for displaying detailed health data and timestamps.

IPS full-view technology ensures stable colour, contrast, and clarity from any viewing angle, eliminating colour shift or dimming issues. This addresses the challenge of variable holding angles in micro-devices, guaranteeing accurate information retrieval across diverse user postures.

The low-power design (2.6V-3.3V voltage + low-current backlight) perfectly matches the battery power requirements of wearable devices. The SPI interface for the drive mode offers fast transmission rates and minimal wiring, aligning with the compact circuit design of micro-devices. Its strong compatibility supports mainstream low-power main control chips, reducing manufacturers' development and adaptation costs while shortening mass production cycles, resulting in exceptional product market competitiveness.

 2. Market research 

The market for 1.2-1.6-inch square micro-displays, which includes the 1.54-inch square colour screen, continues to experience robust demand growth due to its suitability for popular sectors such as wearables and medical applications. According to the 2024 Micro Display Module Industry White Paper:

 Smart Wearables Sector: Global penetration of 1.2-1.6-inch square displays in mini smartwatches and square wristbands reached 62%, with shipments exceeding 160 million units in 2023. The 1.54-inch variant, offering "balanced dimensions and high brightness", accounted for 45% of this segment with annual growth of 38%.

Portable medical sector: Demand for 1.4-1.5-inch square displays in miniature square pulse oximeters and blood glucose monitors grew by 42% annually. 450TYP high-brightness products, favoured for their "superior outdoor readability," became the preferred choice for elderly health device manufacturers, commanding over 78% market preference;

Smart Home Sector: The market for 1.2-1.6-inch square displays in smart door locks and micro-sensor applications reached RMB 2.3 billion in 2023, growing at 35% annually. Square form factors achieved 25% higher usage rates than circular screens in data presentation scenarios due to their "clear information zoning".

Third-party research firm IDC forecasts that the global market for 1.2-1.6-inch square IPS display modules will exceed US$8.5 billion by 2025. Smart wearables and portable medical devices will contribute over 88% of this growth, with 1.54-inch products emerging as the "golden size" within this segment.

 3. Performance meets 

Upon completion of product manufacturing, the display module undergoes testing via the professional optical testing equipment BM-7 to evaluate optical performance metrics including brightness, colour, contrast, and viewing angle, ensuring all specifications meet design requirements. The display module is subjected to reliability testing under industrial control specifications encompassing high temperature, low temperature, and high humidity conditions, simulating diverse operational scenarios encountered in practical use. This ensures both environmental adaptability and reliability of the product meet specified standards.