7.3inch e-Paper (E) Product Overview
The 7.3inch e-Paper (E) from Waveshare is based on E Ink Spectra 6 (E6) full-color e-paper technology, featuring a resolution of 800×480 pixels. 7.3inch e-Paper (E) communicates via SPI interface with onboard level-shifting circuitry, compatible with both 3.3V and 5V logic levels, and supports mainstream controller boards including Raspberry Pi, Jetson Nano, RDK X3, Arduino, and STM32. Utilizing microcapsule electrophoretic display technology, 7.3inch e-Paper (E) requires no backlight, delivers clear visibility under ambient light with a viewing angle of >170°, and retains the last displayed image even after power removal. With ultra-low power consumption (refresh power < 70mW, sleep current < 0.01µA), 7.3inch e-Paper (E) is widely used in electronic shelf labels, conference name tags, warehouse shelf labels, hospital room signage, and other low-power display applications.
7.3inch e-Paper (E) Key Features
7.3inch e-Paper (E) features E Ink Spectra 6 (E6) full-color technology, delivering high-contrast, high-saturation color reproduction. 7.3inch e-Paper (E) offers 800×480 pixel resolution, a display area of 160×96mm, and a dot pitch of 0.2×0.2mm. The technology is based on four-color charged ink particles (red, blue, yellow, and white) that migrate under electric fields to achieve full-color display.
7.3inch e-Paper (E) display performance includes 2 grayscale levels, a full refresh time of approximately 25 seconds, and a viewing angle of >170°, closely resembling traditional paper. 7.3inch e-Paper (E) power consumption is extremely low: refresh power < 70mW, sleep current < 0.01µA, and the display retains content after power-off, making it ideal for battery-powered and long-term static display applications.
7.3inch e-Paper (E) uses a 3-wire SPI / 4-wire SPI communication interface with onboard level-shifting circuitry, compatible with 3.3V and 5V logic levels for easy integration with various controller platforms. The HAT version features a standard 40-pin GPIO header for direct connection to Raspberry Pi series boards, Jetson Nano, RDK X3, and more.
Two versions are available: bare screen (7.3inch e-Paper (E)) and module with driver board (7.3inch e-Paper HAT (E)). 7.3inch e-Paper (E) bare screen measures 170.20×111.20×0.91mm for direct embedded integration, while the HAT version includes a driver board for easy connection to development boards.
7.3inch e-Paper (E) Applications
With its full-color display, ultra-low power consumption, and wide viewing angle, 7.3inch e-Paper (E) is widely used in:
Electronic Shelf Labels (ESL): Price tags and product information displays in supermarkets, convenience stores, and warehouses
Conference Name Tags & Desktop Signs: Electronic nameplates for meetings, corporate receptions, and office desks
Industrial Instruments & Equipment Panels: Parameter displays and status indicators for industrial equipment
Smart Home & IoT: Smart home information dashboards, weather stations, calendar displays
Medical & Public Facilities: Hospital bedside cards, department signage, public information displays
Education & Prototyping: e-paper display projects based on Raspberry Pi, Arduino, and STM32
7.3inch e-Paper (E) Advantages and Highlights
The key advantage of 7.3inch e-Paper (E) lies in its E Ink Spectra 6 full-color technology, delivering superior color reproduction and ultra-low power consumption. Unlike traditional LCD screens, 7.3inch e-Paper (E) requires no backlight, remains clearly visible under direct sunlight, and produces no blue light for eye-friendly viewing. The display retains its content after power removal with near-zero power consumption, making it ideal for long-term static display applications.
7.3inch e-Paper (E) onboard level-shifting circuitry supports both 3.3V and 5V logic levels, enabling direct connection to Raspberry Pi, Jetson Nano, RDK X3, Arduino, STM32, and other mainstream controller boards with a low development barrier. Waveshare provides comprehensive documentation including driver board schematics and sample programs for Raspberry Pi, Jetson Nano, RDK X3, Arduino, and STM32 platforms.
7.3inch e-Paper (E) large screen with a 160×96mm display area and 800×480 resolution delivers rich, clear visual content for various commercial and industrial display needs. With a viewing angle of >170°, the display remains readable from all angles, closely mimicking the reading experience of traditional paper.
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FAQs:
Question: What display technology does this 7.3-inch e-Paper use?
Answer: 7.3inch e-Paper (E) uses the latest E Ink Spectra 6 (E6) full-color technology, supporting microcup mixing of white, red, yellow, and blue particles to produce vivid, high-saturation images.
Question: What is the resolution and size?
Answer: 7.3inch e-Paper (E) resolution is 800 × 480 pixels, with an active area of 160 × 96mm and a dot pitch of 0.2 × 0.2mm.
Question: How is the power consumption?
Answer: 7.3inch e-Paper (E) has ultra-low power consumption, only drawing power during refresh (< 70mW), and its standby current is almost zero (< 0.01uA). It retains the last image even when unplugged.
Question: How long does a full refresh take?
Answer: 7.3inch e-Paper (E) full refresh time is approximately 25 seconds.
Question: What interfaces does it support?
Answer: 7.3inch e-Paper (E) supports 3-wire or 4-wire SPI interfaces, compatible with Raspberry Pi, Jetson Nano, Arduino, or STM32 controllers.
Question: What versions are available?
Answer: 7.3inch e-Paper (E) has a "Raw display" version (3.3V, without driver board) and a "HAT version" (3.3V/5V, with driver board attached).
Question: How does it differ from the 7-color (ACeP) version?
Answer: The 7-color version uses ACeP technology, while 7.3inch e-Paper (E) uses red, yellow, and blue particles to achieve better contrast and saturation, resulting in brighter and clearer colors.
Question: What are the typical applications?
Answer: 7.3inch e-Paper (E) is ideal for electronic shelf labels, conference name tags, industrial instruments, digital photo frames, and smart home dashboards requiring low power and paper-like visuals.
Question: Which pins are required for wiring?
Answer: For 7.3inch e-Paper (E), typically you need to connect 8 pins: VCC, GND, DIN (MOSI), CLK (SCK), CS, DC, RST, and BUSY.
Question: What are the design considerations?
Answer: For 7.3inch e-Paper (E), it is recommended to keep the refresh interval above 180 seconds and refresh at least once every 24 hours. To avoid damage from prolonged high voltage, enter sleep mode when idle.