REFLECTION SHEET FOR DIRECT BACKLIGHT OF TFT LIQUID CRYSTAL DISPLAY DEVICE AND DIRECT BACKLIGHT SYSTEM TFT LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a reflection sheet for the direct backlight of a TFT liquid crystal display device not having such a problem that an uneven spot is partially formed or that winding tendency (curl) is not easily eliminated when the sheet is unwound from a roll, and a direct backlight system TFT liquid crystal display device using the sheet.;SOLUTION: The reflection sheet for the direct backlight of the TFT liquid crystal display device is manufactured by laminating an adhesive layer and a plastic film on the back surface of a white reflection film in this order. Light shielding property is obtained by using the black one as at least one of the adhesive layer and the plastic film. It is desirable to set the heat-resistance holding force of the adhesive layer on the plastic film to 0 to 6.0mm in a test using the load of 1kg on the sticking area of 25mm×25mm performed for three hours at 80°C and ≥1.5mm in the test performed for three hours at 120°C.;COPYRIGHT: (C)2004,JPO