Toshiba M40 - Manual (Page 201)

Appendices Apx. A Handling the LCD Module
7. Do not expose the module to direct sunlight or strong ultraviolet rays for long periods.
8. Do not store the module at temperatures below specifications. Cold can cause the
liquid crystals to freeze, lose their elasticity or otherwise suffer damage.
A-4 EQUIUM M40/M45 / Satellite M40/M45 Maintenance Manual