| 摘要 |
PROBLEM TO BE SOLVED: To recover liquid crystals and organic matter (films) by making these liquid crystals, or the like, non-polluting without using an organic solvent and to recover glass and indium from waste liquid crystal display devices. SOLUTION: The waste liquid crystal display devices having organic compounds containing liquid crystal compounds, metals and glass substrates are brought into contact with a solid heat medium in an atmosphere at the melting point of the glass substrates or below and above the pyrolysis temperature of the liquid crystal compounds, by which the organic compd. containing the liquid crystal compounds is decomposed and the glass and metals are recovered.
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