Liquid crystal materials used for LCDs are organic compounds in a state of liquid with considerably arranged molecules like crystal, which are blended 10 to 20 liquid crystals to achieve the required characteristics.

Only the compounds certified as safety material through the oral acute toxicity test (typical toxicity test) and Ames test (typical mutagenicity test) by liquid crystal material manufacturers are introduced into the market.

The acute toxicity to evaluate the toxicity of chemical substance(s) is shown by the numeric value(mg/kg of body weight) by which 50% of the objects (rats) die through oral dose : LD₅₀(50% lethal dose) and a smaller value shows stronger toxicity. The following figure shows the acute toxicity values of well-known materials along with that of liquid crystals.

Acute toxicity value of liquid crystal materials (LD₅₀)

Please refer the website of the German Federal Environmental Agency for detail examination on toxicity of liquid crystals. http://www.umweltbundesamt.de/uba-info-daten-e/daten-e/lcd.htm

Energy Savings of LCDs		Contribution as an energy saving product
		Impact to the global warming
Liquid Crystal Materials		Influence to the living body
		Liquid crystal materials in LCD panel
Recycling of LCD Panel		Recycling activities
Reduction of Greenhouse Gases		Reduction of PFC emissions