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    • 93. 发明授权
    • Voltage difference-based capacitive touch detection device, capacitive touch detection method and capacitive touch screen panel, and display device with built-in capacitive touch screen panel
    • 基于电压差的电容式触摸检测装置,电容式触摸检测方法和电容式触摸屏面板,以及具有内置电容式触摸屏面板的显示装置
    • US09507467B2
    • 2016-11-29
    • US14003443
    • 2012-03-02
    • Sung Ho Lee
    • Sung Ho Lee
    • G06F3/044G06F3/041G06F3/045G06F3/01G09G3/36
    • G06F3/044G02F1/13338G02F1/133512G02F1/133514G02F1/13439G02F1/1368G02F2201/121G02F2201/123G06F3/017G06F3/0412G06F3/0416G06F3/0418G06F3/045G06F3/047G06F2203/04101G06F2203/04103G06F2203/04105G06F2203/04111G09G3/36
    • Provided is a new capacitive touch detection device, detection method, and touch screen panel for detecting a touch signal by detecting a voltage difference of a sensor pattern from a driving voltage applied by an auxiliary capacitor, and to a display device having a built-in capacitive touch screen. A capacitive touch detection device includes: a sensor pattern (10) forming a touch capacitance (Ct) in between a touch input device and the sensor pattern; an auxiliary capacitor (Caux) connected on one side to the sensor pattern (10) and having a driving voltage for touch detection applied to the other side thereof; a charging unit (12) for providing pre-charge signals to the touch capacitance (Ct) and the auxiliary capacitor (Caux); and a touch detection sensor (14) which is connected to the sensor pattern (10) and which detects a touch signal by detecting a voltage difference in the sensor pattern (10) when the touch capacitance (Ct) is added to the auxiliary capacitor (Caux) according to a touch of a touch input instrument. Effects of parasitic capacitance generated due to noise, coupling phenomena and other factors are minimized, to thus stably acquire touch signals.
    • 提供了一种新的电容式触摸检测装置,检测方法和触摸屏面板,用于通过检测传感器图案的电压差与由辅助电容器施加的驱动电压来检测触摸信号,以及具有内置的显示装置 电容式触摸屏。 电容式触摸检测装置包括:在触摸输入装置和传感器图案之间形成触摸电容(Ct)的传感器图案(10); 辅助电容器(Caux),其一侧连接到所述传感器图案(10),并具有施加到其另一侧的用于触摸检测的驱动电压; 用于向触摸电容(Ct)和辅助电容器(Caux)提供预充电信号的充电单元(12); 以及触摸检测传感器(14),其连接到所述传感器图案(10),并且当所述触摸电容(Ct)被添加到所述辅助电容器(10)时,通过检测所述传感器图案(10)中的电压差来检测触摸信号 Caux)根据触摸输入仪器的触摸。 由于噪声,耦合现象和其他因素而产生的寄生电容的影响最小化,从而稳定地获得触摸信号。
    • 94. 发明授权
    • Touch detection device, touch detection method and touch screen panel, using driving back phenomenon, and display device with built-in touch screen panel
    • 触摸检测装置,触摸检测方法和触摸屏面板,使用回扫现象,并具有内置触摸屏面板的显示设备
    • US09448679B2
    • 2016-09-20
    • US14801050
    • 2015-07-16
    • Sung Ho Lee
    • Sung Ho Lee
    • G06F3/044G09G3/36G06F3/0354G06F3/041
    • G06F3/044G06F3/03545G06F3/0416G06F2203/04104G09G3/3655G09G3/3696G09G2310/08
    • Provided is a touch detection device, touch detection method, and touch screen panel, which detects a touch signal by detecting a driving back phenomenon occurring in a touch pad by a driving voltage applied to a driving capacitor, and a display device with a built-in touch screen panel. The touch detection device that is added on top of a display device and detects occurrence of a touch capacitance (Ct) by an approach of a bodily finger (25) or a touch input instrument such as a conductor similar to the bodily finger, the touch detection device comprising: a touch pad (10) that forms the touch capacitance (Ct) between the touch input instrument and the touch pad; a driving capacitor (Cdrv) whose one side is connected to the touch pad (10) and to the other side of which a driving voltage for detection of a touch input is applied; a common voltage detector that detects a common voltage generated from the display device; a driving voltage generator that generates the driving voltage in synchronization with the common voltage; and a touch detector that is connected to the touch pad (10), and that detects a touch signal by using a driving back phenomenon when the touch capacitance (Ct) is added to the driving capacitor (Cdrv) according to occurrence or non-occurrence of a touch in the touch input instrument. A touch signal is detected while avoiding a point in time of a change of a common voltage state, and a driving voltage is applied through a driving capacitor connected to a touch detector, to thus detect whether or not a driving back phenomenon occurs in the touch detector and to thereby acquire a touch signal. Accordingly, an influence due to parasitic capacitance generated by noise, coupling phenomenon or other factors is minimized, to thus acquire a touch signal stably.
    • 提供了一种触摸检测装置,触摸检测方法和触摸屏面板,其通过检测通过施加到驱动电容器的驱动电压在触摸板中发生的驱动回现象来检测触摸信号;以及显示装置, 在触摸屏面板。 触摸检测装置,其被附加在显示装置的顶部,并且通过人体手指(25)或诸如类似于身体指状物的导体的触摸输入装置的接近来检测触摸电容(Ct)的发生,触摸 检测装置,包括:在触摸输入仪器和触摸板之间形成触摸电容(Ct)的触摸板(10); 驱动电容器(Cdrv),其一侧连接到触摸板(10),并且另一侧用于检测触摸输入的驱动电压; 公共电压检测器,其检测从所述显示装置产生的公共电压; 驱动电压发生器,其与公共电压同步地产生驱动电压; 以及触摸检测器,其连接到触摸板(10),并且当触摸电容(Ct)根据发生或不发生而被添加到驱动电容器(Cdrv)时,通过使用驱动反现象来检测触摸信号 触摸输入仪器中的触摸。 在避免公共电压状态改变的时间点的同时检测到触摸信号,并且通过连接到触摸检测器的驱动电容器施加驱动电压,从而检测触摸中是否发生驱动回现象 检测器,从而获得触摸信号。 因此,由于由噪声,耦合现象或其他因素产生的寄生电容引起的影响被最小化,从而稳定地获得触摸信号。