Why is the screen of a mobile phone not clearly visible outdoors, but the screen of a watch is fine? Do you know reflective LCD?
The reason why mobile phones cannot be seen clearly outdoors is that the brightness and contrast are insufficient under strong light. Some smart watches have better display effects outdoors because they use reflective LCD screens. Liquid crystal display is divided into two technical routes: transmissive LCD and reflective LCD. Transmissive is a conventional liquid crystal display that relies on LED backlight to emit light and modulate the image through the liquid crystal box; while reflective is a special liquid crystal display that does not require backlight and modulates the image by reflecting ambient light and liquid crystal boxes. Based on the principle of reflective LCD, since it relies on ambient light reflection to achieve display, it has better display effects outdoors and is more eye-friendly.
Users can watch reflective LCD screens as comfortably as reading a book. Speaking of this, do you think of electronic paper (EPD)? Yes, the eye protection function of reflective LCD is comparable to that of electronic paper, and it is better than electronic paper in smooth video playback and full-color display! The response speed of reflective LCD is less than 15 milliseconds, and a refresh rate of ≥60Hz can be achieved, and video playback is smooth. However, electronic paper will have serious stuttering and tailing when playing videos. Reflective LCD can achieve full-color display. Although electronic paper can achieve color display by adding color film, its 32,768 colors are far less than the 16,777,216 colors of reflective LCD.
At present, BOE is the manufacturer with the best reflective LCD technology. It is reported that BOE has launched 10.5”WXGA, 32”FHD and 43”FHD reflective LCD, which can be used in electronic school bags, outdoor terminals, etc. Users can enjoy eye protection without changing their usage habits.
