Patent ID: 6317178
Filing Date: 2001-11-13
Classification: G02F

Abstract:
A display device, suitable for use in a vehicle, the display device comprising:a viewing screen having a first liquid crystal cell, the liquid crystal cell being an active cell including a front cell wall and a rear cell wall and a liquid crystal substance arranged in a cell space between these cell walls;a second liquid crystal cell having cell walls enclosing a cell space, the second liquid crystal cell being disposed behind the first liquid crystal cell in a direction of viewing of the first liquid crystal cell, the second liquid crystal cell being a passive liquid crystal cell; anda heating device located in the second liquid crystal cell and serving to heat the display device, wherein the heating device is located in the cell space of the second liquid crystal cell at at least one of the cell walls;wherein the first liquid crystal cell is a TN cell or an STN cell; andthe heating device includes an electrically conductive layer of the display device for receiving a voltage applied thereto.