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    • 10. 发明授权
    • Input device, contact position detection method, and display device provided with input device
    • 输入装置,接触位置检测方法以及配备有输入装置的显示装置
    • US09041678B2
    • 2015-05-26
    • US14113879
    • 2012-04-20
    • Yasuhiro SugitaKazutoshi KidaYuhji YashiroShinji Yamagishi
    • Yasuhiro SugitaKazutoshi KidaYuhji YashiroShinji Yamagishi
    • G06F3/041G06F3/044
    • G06F3/041G06F3/0416G06F3/044
    • Detection accuracy is improved without reducing a driving frequency and an S/N ratio.Driving electrodes (DL(j−2) and DL(j−1)) of a driving electrode group (GDL(i)) overlap a driving electrode group GDL(i−1), and driving electrodes (DL(j+1) and DL(j+2)) thereof overlap a driving electrode group GDL(i+1). A first changeover terminal of a changeover switch (SW(i)) is connected to a wire to which a burst clock signal (BCK) is given, and a ground potential is given to a second changeover terminal thereof. A common terminal of the changeover switch (SW(i)) is connected to a driving electrode (DL(j)) located at a center of the driving electrode group (GDL(i)), is connected to the driving electrodes (DL(j−1) to DL(j−3)), respectively, via one to three resistive elements (Rd), and is connected to the driving electrodes (DL(j+1) to DL(j+3)), respectively, via one to three resistive elements (Rd).
    • 在不降低驱动频率和S / N比的情况下,可以提高检测精度。 驱动电极组(GDL(i))的驱动电极(DL(j-2)和DL(j-1))与驱动电极组GDL(i-1)重叠,驱动电极(DL(j + 1) 和DL(j + 2))与驱动电极组GDL(i + 1)重叠。 切换开关(SW(i))的第一切换端子连接到给予突发时钟信号(BCK)的导线,并且将地电位给予其第二切换端子。 转换开关(SW(i))的公共端子连接到位于驱动电极组(GDL(i))的中心的驱动电极(DL(j)),连接到驱动电极(DL 分别通过一个到三个电阻元件(Rd)分别连接到驱动电极(DL(j + 1)到DL(j + 3))到DL(j-3))到DL(j-3) 通过一个到三个电阻元件(Rd)。