| 摘要 |
<p>The present invention relates to a pressure sensor for a touch panel capable of effectively preventing a touch input error. The pressure sensor comprises: a signal input member having a conductor patterned in an interdigitated shape on a substrate, and in which one conductor pattern is formed in parallel in a combteeth shape and connected in a lower part, and another conductor pattern is formed in parallel in a combteeth shape, connected in an upper part, and arranged as if interdigitating with the previous conductor pattern; a spacer disposed in an upper edge and lower edge where the conductor pattern is not formed on the substrate of the signal input member; a left support unit disposed in a part of a left edge where the conductor pattern is not formed on the substrate of the signal input member; a right support unit disposed in a part of a right edge where the conductor pattern is not formed on the substrate of the signal input member; a piezo film disposed on the spacer, left support unit, and right support unit to be separated from the signal input member, and having a resistance value changed according to the magnitude of applied pressure; and a pressure supplementing unit disposed between the piezo film and the signal input member, and put under a region where a key input having a larger width than other keys is transferred to the piezo film.</p> |
