CAPACITIVE TOUCH DEVICE AND METHOD IDENTIFYING TOUCH OBJECT ON THE SAME

摘要

A capacitive touch device and a method identifying touch object on the touch device read sensing information of multiple traces of a touch panel corresponding to a touch object, in which the sensing information includes a sensing cluster corresponding to a portion on the touch panel touched by the touch object, identify a hover cluster of the sensing information corresponding to a portion adjacent to and surrounding the sensing cluster, determine if the hover cluster meets a first characteristic, and determine that the touch object is a specific touch object when the hover cluster meets the first characteristic. Given the foregoing device and method, a palm rejection operation can be more accurately performed and is also applicable to object detection at corners of the touch panel.

主权项

1. A method identifying touch object on a capacitive touch device, comprising steps of:
reading sensing information of multiple traces of a touch panel of a capacitive touch device corresponding to a touch object, wherein the sensing information includes a sensing cluster corresponding to a portion on the touch panel touched by the touch object; identifying a hover cluster of the sensing information, wherein the hover cluster corresponds to a portion on the touch panel adjacent to but not in contact with the touch object and surrounds the sensing cluster; determining if the hover cluster meets a first characteristic; and determining that the touch object is a specific touch object when the hover cluster meets the first characteristic.