4.2 Inch E-paper Display 400*300 Resolution 24pin Low Power Consumption E-Ink

The YE042A88 E-PAPER display module excels in clear information presentation and low-power operation. As shown in the images, it can vividly display product details, pricing, and promotional content—its 120 DPI resolution and square pixels (0.212×0.212mm) ensure sharp text and graphics, while the hard-coat antiglare surface eliminates glare under direct sunlight, maintaining readability in retail stores or outdoor kiosks. The Black/White/Red 3-color display enables color-coded information classification: red for limited-time offers, black for product names, and white for background—helping customers quickly capture key information. Whether used for electronic shelf labels, smart cargo tags, or digital notice boards, its compact size and low power consumption make it a versatile choice for space-constrained and battery-powered applications.

The YE042A88 E-PAPER display module has a wide range of applications across multiple industries. In retail, it serves as electronic shelf labels, supporting real-time updates of product prices, stock levels, and promotional information—its low power consumption (≤3μA deep sleep) eliminates frequent battery replacements, reducing retail maintenance costs. The 3-color display highlights promotional products (red) and regular items (black/white), enhancing customer shopping experience. In logistics and warehousing, it functions as smart cargo labels, displaying waybills, destination details, and inventory statuses, withstanding transportation temperatures of -25~60℃ for up to 10 days. In smart offices and homes, it acts as digital notice boards or control panels, showing schedules, weather forecasts, or device statuses—its paper-like visual experience reduces eye strain during long-term viewing. Additionally, in educational institutions, it works as classroom information displays or electronic nameplates, supporting landscape and portrait modes to adapt to different installation environments. With ROHS compliance and rigorous reliability testing (including high-temperature, low-temperature, and vibration tests), it meets environmental and long-term use requirements in diverse scenarios.

The YE042A88 adopts pure reflective display technology without a backlight, delivering a paper-like visual experience with a white state L* value of 63~65, dark state L* value of 13~14, and high white reflectance (35% typ.)—ensuring clear and sharp text and images. Its 400×300 resolution (120 DPI) and square pixels (0.212×0.212mm) avoid image distortion, making it ideal for displaying barcodes, small fonts, and graphics. The hard-coat antiglare surface reduces glare under direct sunlight, maintaining readability in outdoor or bright indoor environments. With an ultra-wide viewing angle, there is no color or brightness deviation when viewed from any direction (12 o'clock, 3 o'clock, 6 o'clock, 9 o'clock), supporting multi-person viewing scenarios such as retail shelves or office dashboards. Additionally, it supports both landscape and portrait modes, adapting to different installation orientations.

Based on bi-stable display technology, the module only consumes power during screen refresh—panel power consumption is 180 mAs (max. at 25℃), while deep sleep mode current is ≤3μA. When paired with a standard lithium battery, electronic shelf labels refreshed once daily can operate for over 12 months without replacement. The integrated on-chip booster generates VCOM, Gate (VGH/VGL), and Source (VSH1/VSH2/VSL) driving voltages internally (VSH1=15V, VSH2=5V, VSL=-15V typical), reducing external circuit complexity and optimizing power efficiency. It also supports low-voltage detection (VCI) to monitor battery status (detect levels: 2.2~2.6V selectable) and high-voltage ready detection to prevent abnormal operation due to insufficient driving voltages, ensuring stable performance in power-fluctuating environments.

The YE042A88 features excellent environmental adaptability: it operates stably at 0~40℃ (35~70%RH) and can withstand transportation temperatures of -25~60℃ for up to 10 days. It has passed rigorous reliability tests, including 240-hour high-temperature (40℃) and low-temperature (0℃) operation, 50 temperature cycles (-25℃~60℃), 168-hour high-temperature high-humidity (40℃, 90%RH) operation, and ESD testing (+/-250V, 0Ω, 200pF)—ensuring no functional failures or appearance defects. The hard-coat screen is scratch-resistant and fingerprint-resistant, preventing damage from daily friction. With a designed service life of 5 years (under normal use: 25℃/60%RH, updated once daily) and ROHS compliance, it meets long-term use requirements in industrial, retail, and logistics fields.

The module supports 3-wire/4-wire SPI interfaces (selectable via the BS1 pin) and I2C for internal/external temperature sensors, compatible with most microcontrollers, PLCs, and embedded systems—no complex driver development required. The SSD1683 driver IC includes on-chip OTP for waveform storage and 10-byte user ID programming, simplifying data management and module identification. It offers rich commands for display control, such as RAM address setting (X/Y start/end positions), LUT programming, and partial refresh (via RAM window settings), enabling customization for different application scenarios. The 24-pin connector ensures secure and easy installation, while the FPC+PI stiffener design (total thickness 0.30±0.03mm) enhances mechanical stability. Additionally, it supports border waveform control and dummy line period adjustment, optimizing display performance for specific use cases.