An idea for OSD displays for cars' windshields

Using GPS and See through LCDs for Windshields, Maps and Road names can be displayed. It can also replace physical speedometers and rear mirrors. Best of all, the OSDs can be customizable, and passengers can even use part of the sceen to watch mobile TVs or movies. When the car is in park mode, the whole windshield can used as a screen for watching movies.

Note: For this idea, the LCD must allow a range of transparency and it is not certain if this technology is available. See through LCDs are being developed by Active Inc. http://www.engadget.com/2007/06/29/see-through-lcd-screen-developed/

Also, if all windows are equipped with such LCDs, all windows can have like 80% opaque (white) when the car is parked to reduce heat trapped in the car when parked under the sun. This idea comes from the LRTs' windows turning white when they are near buildings. Not having 100% opaque is for security reasons, like children being left in the car, etc.