According to different key structures, the thin film keyboards can be divided into three types, namly Crater, Pillar and Scissor. Scissor were first used in the personal computer keyboard. Due to the good touch feeling, manfacturers move it to the desktop computer and high and mid end products. The keyboard with scissors are of high stability, high speed kick-back and the force is balanced.
The scissor's structure is as followed:
1, There is X-like holder under the scissor keycap. Combined with the silica rubber, the holder support the keycap. The bottom support points are located around the four keycap corners, which makes the keyboard with high stability. There is no unbalanced force or keycap stick when pressing the keycaps at any point with fixed force.
2, There is huge difference with scissor keyboard and crater, pillar keyboards. The force in pressing the key is bigger than the other two keyboards. When the force is enough to get the key work, the key will go down quickly to touch the bottom. There is no interruption. When letting off the key, it will be bounch up quickly to satisfy customers who are fond of playing games.
3,The structure of scissors is comparatively complecated. So, the cost is higher than common keyboard. It is worthwhile as the keyboard has excellent touch feeling. Please pay attention that the key travel of the scissors keyboard is short, say 2-2.5mm. Some users can not get used to it.
 
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