中科微点-全球专利检索

  1. Login
  2. Sign Up
Invention Grant
US07755615B2 Optical shuttered touchscreen and method therefor 有权
光学快门触摸屏及其方法

Optical shuttered touchscreen and method therefor
Abstract:
A touchscreen display system (418) is provided which includes a touchscreen (420), a touchscreen input detector (422), a capacitive sensor driver (423), and a display driver (424). The touchscreen input detector (422) is coupled to a first layer (504) of the touchscreen (420) and determines a touchscreen (420) input in response to sensing tactile inputs during a sensing time interval (610). The display driver (424) is coupled to a second layer (506) of the touchscreen (420) and provides a drive voltage (606, 608) at a first voltage level to the plurality of optical shutter segments (508) during a first portion (620) of the sensing time interval (610) and maintains the drive voltage (606, 608) at substantially zero volts during a second portion (622) of the sensing time interval (610), the second portion (622) being greater than half of the sensing time interval (610).
Abstract(Chinese):

提供了一种触摸屏显示系统（418），其包括触摸屏（420），触摸屏输入检测器（422），电容传感器驱动器（423）和显示驱动器（424）。 触摸屏输入检测器（422）耦合到触摸屏（420）的第一层（504），并且在感测时间间隔（610）期间响应于感测触觉输入而确定输入的触摸屏（420）。 显示驱动器（424）耦合到触摸屏（420）的第二层（506），并且在第一部分期间向多个光学快门段（508）提供处于第一电压电平的驱动电压（606,608） （620），并且在感测时间间隔（610）的第二部分（622）期间将驱动电压（606,608）维持在基本为零伏特，第二部分（622）大于 感测时间间隔的一半（610）。

Public/Granted literature
Information query
Espacenet
Patent Agency Ranking
0/0