| The latest Nokia N90 and Motorola RAZR V3 | | | | (PDA) and small handheld digital cameras over the |
| clamshell mobile cell phones all incorporate | | | | past few years. |
| sophisticated hinges which allow you to flip open | | | | Basically, the hinge assembly connects the cell |
| your cell phones smartly amongst admiring | | | | phone base to the folder unit which contains the |
| onlookers. Another winner is the hinge assembly in | | | | display screen. From the simple open-snap-close |
| Orange SPV M5000 3G PDA cell phone device | | | | mechanism, the latest hinge mechanism now can |
| which allows the screen half of the cell phone to | | | | control the angle of opening. Free-stop designs, |
| swivel 180 degrees and close to allow | | | | where the folding stops at any angle, and 2 |
| simultaneous tablet mode and full phone | | | | degree-of-freedom hinge assembly is in vogue. |
| functionality. | | | | This flip-and-twist hinge assembly combines 2 |
| These hinge assemblies which were previously | | | | rotary hinges with perpendicular axes, letting the |
| used in laptop computers have been designed into | | | | clamshell cell phone flip open then twist 180 |
| the sleekest cell phones, personal digital assistants | | | | degress. |