公开(公告)号：US09472158B2

公开(公告)日：2016-10-18

申请号：US14660355

申请日：2015-03-17

Applicant: APPLE INC.

Inventor： Hung Sheng Lin ,  Chaohao Wang ,  Szu-Hsien Lee ,  Weijun Yao ,  Yingxuan Li ,  Wonjae Choi

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0209 ,  G09G2320/029 ,  G09G2330/06 ,  G09G2330/08

Abstract: Systems and methods are provided for adjusting and displaying image data to account for variable common voltage error across separate common electrode sub-plates. The image data may be adjusted based on a common mode common voltage error on a common voltage line coupled to more than one different common electrode sub-plate. Each common electrode sub-plate may carry a common voltage that varies depending on values of the image data programmed to pixels associated with that common electrode sub-plate.

Abstract translation: 提供了系统和方法来调整和显示图像数据，以解决跨单独的公共电极子板的可变共同电压误差。 可以基于耦合到多于一个不同公共电极子板的公共电压线上的共模公共电压误差来调整图像数据。 每个公共电极子板可以承载根据编程到与该公共电极子板相关联的像素的图像数据的值而变化的公共电压。

公开(公告)号：US09430105B2

公开(公告)日：2016-08-30

申请号：US14194363

申请日：2014-02-28

Applicant: Apple Inc.

Inventor： Weijun Yao ,  Taif A. Syed ,  Yingxuan Li ,  Ahmad Al-Dahle

IPC: G06F3/044 ,  G06F3/041 ,  G06F3/047

CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F3/047 ,  G06F2203/04101 ,  G06F2203/04112

Abstract: A self-capacitance touch sensor panel including a plurality of touch electrodes and one or more sense circuits coupled to the touch electrodes. The touch sensor panel also includes at least one offset cancellation circuit coupled to at least one of the touch electrodes and configured to generate an offset cancellation signal to cancel an offset signal at the at least one touch electrode. In some examples, the offset cancellation signal can be an offset cancellation current to cancel an offset current. In some examples, the offset cancellation circuit comprises a variable resistor, and a magnitude of the offset cancellation current is based on a resistance of the variable resistor. In some examples, each touch electrode is coupled to an offset cancellation circuit. In other examples, a single offset cancellation circuit is shared by a plurality of touch electrodes.

Abstract translation: 一种自电容式触摸传感器面板，包括多个触摸电极和耦合到触摸电极的一个或多个感测电路。 触摸传感器面板还包括耦合到至少一个触摸电极的至少一个偏移消除电路，并被配置为产生偏移消除信号以抵消在至少一个触摸电极处的偏移信号。 在一些示例中，偏移消除信号可以是消除偏移电流的偏移消除电流。 在一些示例中，偏移消除电路包括可变电阻器，并且偏移消除电流的大小基于可变电阻器的电阻。 在一些示例中，每个触摸电极耦合到偏移消除电路。 在其他示例中，单个偏移消除电路由多个触摸电极共享。