LIQUID CRYSTAL DISPLAY DEVICE, AND PORTABLE TELEPHONE DEVICE USING LIQUID CRYSTAL DISPLAY DEVICE

摘要

In a fold-up type of portable telephone device, the casing to be opened/closed has liquid crystal display devices on its front and back sides, which causes occurrence of noise. In view of this, in the liquid crystal display device of a portable telephone device, a flexible connection substrate (3) is used to integrally form first (1) and second (2) liquid crystal display parts with a driver circuit (4) shared therebetween. The first liquid crystal display part (1) is connected to the flexible connection substrate (3) to which the second liquid crystal display part (2) is connected. The second liquid crystal display device (2) is formed by adding the flexible connection substrate (3) to the first liquid crystal display part (1), and both are driven by the driver circuit (4). Not only an alternative display but also simultaneous displays can be selectively performed.