Palm area recognition method and to a method of updating the touch panel

An identification method and palm area update method on the touch panel, the palm area recognition method comprising: obtaining the touch sensor panel output frame information includes a plurality of touch sensing points, and wherein selecting one from its periphery, and reference contour, extends outwardly a search range, to determine whether any touch sensing point falls within the peripheral contour of the search range, coupled with a marked fall within the search range of touch sensing points, and the current touch flag peripheral contour sensing point outwardly extending a search range, judgment is repeated until the touch sensing point falls No new search range; the last peripheral outline integrated touch sensing point marked a single outer profile, the outer profile single That set the palm area, the rest is not marked reporters, for the touch point of reference.