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    • 11. 发明授权
    • Liquid crystal display having a built-in touch screen using capacitance and sense lines for detecting a touch position
    • 液晶显示器具有使用电容的内置触摸屏和用于检测触摸位置的感测线
    • US08847917B2
    • 2014-09-30
    • US12834157
    • 2010-07-12
    • Jin-Woo ParkSang-Uk KimHee-Chul HwangMu-Kyung JeonHideo Yoshimura
    • Jin-Woo ParkSang-Uk KimHee-Chul HwangMu-Kyung JeonHideo Yoshimura
    • G06F3/042G06F3/044G06F3/041
    • G06F3/0412G06F3/044
    • A liquid crystal display (LCD) with a built-in touch screen includes: a first substrate including a sensor area having a plurality of photosensors; a second substrate positioned over the first substrate, and including a color filter, a light receiving portion, and a transparent electrode layer and a front polarizing plate; an LCD panel including a liquid crystal layer interposed between the first and second substrates; a touch screen driver circuit to measure a capacitance variation sensed through a first sensing line connected to the transparent electrode layer and to calculate a touch area using optical information sensed through a second sensing line connected to the photosensors when a contact object is in contact with the LCD panel, and to output position information of the contact object, sensed by determining whether a touch occurs and whether a multi-touch occurs using the capacitance variation and the touch area.
    • 具有内置触摸屏的液晶显示器(LCD)包括:第一基板,包括具有多个光电传感器的传感器区域; 位于第一基板上的第二基板,包括滤色器,受光部,以及透明电极层和前偏振片; 液晶显示面板,包括插入在第一和第二基板之间的液晶层; 触摸屏驱动器电路,用于测量通过连接到透明电极层的第一感测线检测到的电容变化,并且当接触物体与接触物体接触时,使用通过连接到光电传感器的第二感测线检测到的光学信息来计算触摸区域 LCD面板,并且通过确定是否发生触摸并且使用电容变化和触摸区域是否发生多点触摸来输出接触对象的位置信息。