触摸检测方法和触控芯片技术

一种触摸检测方法和触控芯片。该触摸检测方法包括：确定触摸屏的驱动信号从当前频率跳频到目标频率(S510)；以参考频率的驱动信号驱动所述触摸屏，其中，参考频率与目标频率不相同(S520)；采集触摸屏工作在参考频率时的原始值集合作为第一原始值集合(S530)；根据第一原始值集合与参考频率的备份基准值集合，确定触摸屏上存在触摸的第一触摸位置(S540)；以目标频率的驱动信号驱动所述触摸屏(S550)；采集触摸屏工作在目标频率时的原始值集合作为第二原始值集合(S560)；根据第二原始值集合和第一触摸位置，确定目标频率的基准值集合(S570)；根据目标频率的基准值集合，确定触摸屏工作在目标频率时的触摸位置(S580)。该触摸检测方法和触控芯片，有助于提高触摸屏上触摸位置的检测准确率。

Touch Detection Method and Touch Control Chip

The invention relates to a touch detection method and a touch control chip. The touch detection method includes: determining the driving signal of the touch screen from the current frequency hopping to the target frequency (S510); driving the touch screen with the driving signal of the reference frequency, in which the reference frequency is different from the target frequency (S520); collecting the original value set of the touch screen working at the reference frequency as the first original value set (S530); and according to the first original value set and the reference frequency. The first touch position (S540) where touch exists on the touch screen is determined by backing up the reference value set (S560); the touch screen (S550) is driven by the driving signal of the target frequency; the original value set when the touch screen works at the target frequency is collected as the second original value set (S560); and the reference value set of the target frequency (S570) is determined according to the second original value set and the first touch position. The set of reference values of frequency determines the touch position (S580) when the touch screen works at the target frequency. The touch detection method and touch chip are helpful to improve the detection accuracy of touch position on touch screen.

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。

【技术特征摘要】
【国外来华专利技术】PCT国内申请，...

【专利技术属性】
技术研发人员：刘松松，姜海宽，彭永豪，杨威，
申请(专利权)人：深圳市汇顶科技股份有限公司，
类型：发明
国别省市：广东,44