Products
4.2
Size：4.2
Part NO.：LTK-400300-042EP-A87
Resolution：400*300
DPI：120
AA（mm）：84.8*63.6
OD（mm）：91.00*77.00
TFT Substrate：Glass
Interface：SPI
Size：4.2
Part NO.：LTK-400300-042EP-A88
Resolution：400*300
DPI：120
AA（mm）：84.8*63.6
OD（mm）：91.00*77.00
TFT Substrate：Glass
Interface：SPI
Size：4.2
Part NO.：LTK-400300-042EP-A203
Resolution：400*300
DPI：120
AA（mm）：84.8*63.6
OD（mm）：91.00*77.00
TFT Substrate：Glass
Interface：SPI
Electronic Paper (E-paper) is a display technology that mimics the appearance of paper, featuring high contrast, ultra-wide viewing angles, and excellent readability even under direct sunlight. Its defining characteristics are "reflective display" and "bistability," which mean power is consumed only when switching images, with zero energy consumption when static. This makes it ideally suited for applications such as e-readers and electronic shelf labels.
📘 Core Principles of E-paper
1. Key Technology: Electrophoretic Display (EPD)
- Utilizes an electric field to move positively charged (white) and negatively charged (black) particles within microcapsules to form images.
2. Two Key Features
- Bistability: Consumes zero power when the image is static, requiring energy only during page turns or display updates.
- Reflective: Operates without a backlight, using ambient light reflection to deliver a paper-like, eye-friendly viewing experience.
E-paper differs from Liquid Crystal Displays (LCD) in three main aspects:
1. Display Mechanism: LCDs require a backlight that shines directly into the eyes, causing eye fatigue over extended periods. E-paper is reflective, utilizing ambient light to create a reading experience akin to real paper that remains crystal clear under direct sunlight.
2. Power Consumption: LCDs require continuous power to maintain an image. E-paper features bistability, consuming power only when turning pages (updating the display) and zero power while static, resulting in exceptional battery life.
3. Refresh Rate: LCDs feature rapid response times suitable for video playback. E-paper has a slower refresh rate, making it ideal primarily for reading text or static information.
Innovative Market Applications of E-paper:
- Smart Transportation: Ultra-low-power outdoor bus stop signage.
- New Retail: Electronic Shelf Labels (ESL) capable of real-time discount updates.
- Smart Healthcare: Patient room door signs and bedside cards, reducing paper waste while ensuring accurate, synchronized data.
- Sustainable Architecture: Color-changing building facades and interior decor.
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