Backlight modules, liquid crystal devices, and OLED display devices

摘要

A backlight module including a back plate and a heating device is disclosed. The back plate includes a passive layer and an active layer adhered below the passive layer, wherein a coefficient of heat expansion of the active layer is greater than that of the passive layer. The heating device is configured for controlling a heating temperature of the back plate so as to adjust a rate of curvature of the back plate toward a liquid crystal panel. In addition, a LCD and an OLED display device are also disclosed. The rates of curvature of the backlight module, the LCD, and the OLED display device may be adjusted accordingly.

主权项

1. A backlight module, comprising:
a back plate comprising a passive layer and an active layer adhered below the passive layer, wherein a coefficient of heat expansion of the active layer is greater than that of the passive layer; an insulation sheet arranged on a down surface of the active layer; a heating device comprises an electrode and a temperature controlling device, the electrode being arranged within the insulation sheet for electrifying and heating up the back plate, and the temperature controlling device for controlling a heating temperature of the back plate; and when the back plate is heated, a center of the back plate protrudes along a direction from the back plate toward a liquid crystal panel.