发明名称 CORRECTION APPARATUS AND CORRECTION METHOD FOR SELF-CAPACITIVE TOUCH PANEL
摘要 A correction apparatus for a touch panel is provided. The touch panel includes multiple upper electrodes and multiple lower electrodes interleaved along a first reference direction. An initial coordinate calculation module calculates a first initial coordinate in the first reference direction and a second initial coordinate in a second reference direction of a touch position according to sensing results associated with the upper electrodes and sensing results associated with lower electrodes. A correction parameter calculation module calculates a first correction parameter according to the sensing results of the lower electrodes, and calculates a second correction parameter according to the sensing results of the upper electrodes. A compensation calculation module calculates a compensation amount according to the first correction parameter, the second correction parameter and the first initial coordinate. A correction module corrects the second initial coordinate according to the compensation amount.
申请公布号 US2015261358(A1) 申请公布日期 2015.09.17
申请号 US201514656830 申请日期 2015.03.13
申请人 MStar Semiconductor, Inc. 发明人 Liu Tzu-Wei
分类号 G06F3/044 主分类号 G06F3/044
代理机构 代理人
主权项 1. A correction apparatus for a self-capacitive touch panel, the touch panel comprising a plurality of upper electrodes and a plurality of lower electrodes, the plurality of lower electrodes and upper electrodes being in a staggered arrangement along a first reference direction, the correction apparatus comprising: an initial coordinate calculation module, configured to calculate a first initial coordinate in the first reference direction and a second initial coordinate in a second reference direction of a touch position according to at least one sensing result associated with the upper electrodes and at least sensing result associated with the lower electrodes, respectively, the second reference direction being substantially perpendicular to the first reference direction; a correction parameter calculation module, configured to calculate a first correction parameter according to the at least one sensing result associated with the lower electrodes, and to calculate a second correction parameter according to the at least one sensing result associated with the upper electrodes; a compensation calculation module, configured to calculate a compensation amount according to the first correction parameter, the second correction parameter and the first initial coordinate; and a correction module, configured to correct the second initial coordinate according to the compensation amount.
地址 Hsinchu Hsien TW