1. 电子纸(E-Paper)：
电子纸或电子墨水显示器 (EID) 是使用技术在纸上表示墨水。
2. 液晶显示器(LCD)：
LCD是一种平板显示技术，主要用于电视和电脑显示器，现在也用于手机。这些 LCD 与旧的 CRT 显示器完全不同，因为它们在主要操作形式中使用液晶而不是阴极射线。
电子纸和液晶的区别：
| S. No. | Category | E-paper | LCD | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Full Form | E-paper stands for Electronic paper | LCD stands for Liquid Crystal Display. | ||||||||
| 2. | Definition | E-paper or Electronic paper, a.k.a Electronic Ink Display (EID), is the representation of ink on paper with the use of technology. | Liquid Crystal Display (LCD) is a flat panel display technology which uses liquid crystals instead of cathode ray in its primary form of display operation. | ||||||||
| 3. | Thickness | E-paper is about 1 millimeter in thickness. | LCD is relatively thicker (approximately 7 millimeters) | ||||||||
| 4. | Screen Material | E-paper uses both glass and plastic screens. | Only glass screen is found in case of LCD. | ||||||||
| 5. | Readability in Sunlight | E-paper is easily readable in sunlight. | LCD makes it difficult to read in sunlight. | ||||||||
| 6. | Portability | It is easier to carry E-paper due to its light weight. | It is relatively difficult to carry LCD due to its heaviness which is because of the glass screen and power systems. | ||||||||
| 7. | Power Requirements | It is capable of holding text and images indefinitely without drawing electricity. | LCD needs power to hold images. | ||||||||
| 8. | View | E-paper has a viewing angle of 180 degrees, i.e. it can be viewed from anywhere if you are in front of it. | LCD can be best viewed only from the center front of the screen. | 9. | Pixel Visibility | E-paper uses reflection of light for pixels to be visible | LCD uses back light illumination for pixel visibility. | 10. | Commercial Examples | Amazon Kindle 2, Kindle DX, Touch and Kindle Paperwhite | Samsung, Sony and LG LCD televisions |