An LCD consists of layers of plastic and glass as well as the actual liquid crystal chemical.
Image: Wikimedia Commons.
LCDs (liquid crystal displays) are a common display type used for computer monitors, laptops, televisions, telephones, calculators, and watches.
Physically, an LCD consist of special plastics and glass with the actual liquid crystal chemical sandwiched in between. The assembly is glued together or held together with metal edging.
The LCD may have a backlight, typically a cold cathode fluorescent lamp (CCFL) or light emitting diodes (LEDs). The newer LCD screens use LEDs. CCFLs contain a small amount of mercury, a heavy metal which is ecotoxic.
Further information
- LCDs at Wikipedia
LCD Waste Recycling System – YouTube3 November 2017
ITRI has developed the LCD Waste Recycling System to recycle scrap LCDs, successfully separating the liquid crystal, indium, and glass, readying them for reuse.
A partnership of researchers, recyclers and engineers have united their expertise to solve what they describe as Europe’s ‘LCD (Liquid Crystal Display) stockpiling issue’.
Last updated: August 18, 2020 at 18:22 pm
