Shenzhen Goodix Technology Co., Ltd.

Dafei Wen

Rui Ran

Wu Liu

Leigang Cheng

Embodiments of the present application provide a force detection method, a force detection apparatus and an electronic terminal thereof. The force detection method includes: acquiring an output electrical signal of a voltage dividing capacitor formed between a driving electrode and a force sensing electrode, and an output electrical signal of a force detecting capacitor formed between the force sensing electrode and a reference electrode, determining force feature data when a force is applied to the force sensing electrode based on the output electrical signal of the voltage dividing capacitor and the output electrical signal of the force detecting capacitor. Based on the present application, the force detection model is simplified, the voltage variation amount is increased, the impacts caused by environment changes to the force performance are mitigated or eliminated, and environment self-calibration and self-calibration of an initial gap between the force sensing electrode and the reference electrode are implemented.

Force detection method and apparatus, and electronic terminal

A pressure detection structure and a touch device are disclosed. The structure is mounted on a middle frame of the touch device and includes a cover, a display device and a pressure sensor. The display device is arranged below the cover, and includes a display module. The pressure sensor is arranged in the display device; any electrically conductive member in the display device or the middle frame which is electrically conductive is used as a reference electrode; and a variable gap is present between the pressure sensor and the reference electrode, and the pressure sensor outputs a pressure signal according to variation of capacitance between a sensing electrode thereof and the reference electrode. According to the present application, pressure detection may be carried out accurately, and thus reliability of products is enhanced.

Pressure detection structure and touch device

The present application discloses a pressure detection structure and a terminal device. The pressure detection structure includes a cover, a display screen, a pressure sensor and a middle frame, the display screen and the cover being sequentially stacked in the middle frame from bottom to top; wherein: the pressure sensor is fixed to the display screen; the display screen includes a lower glass layer, an LED light emitting layer and an upper glass layer which are sequentially stacked from bottom to top; and the pressure sensor is positioned beneath the lower glass layer. Thus, the tolerance to be controlled mainly lies in the thickness of the gap layer inside the display screen, and the flatness of the pressure sensor. Hence, the assembling tolerance is reduced, and the stability, reliability and consistency of pressure detection by the terminal device are improved.

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Shenzhen, China

Dafei Wen