Title:
INTERACTIVE TABLET, AND TOUCH FEEDBACK METHOD AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/254539
Kind Code:
A2
Abstract:
Disclosed are an interactive tablet, and a touch feedback method and a preparation method therefor. The interactive tablet comprises: a touch display screen, used for receiving touch operations; at least three piezoelectric elements, located at different positions of the touch display screen, and used for receiving vibration waves produced by the touch operations on the surface of the touch display screen, producing deformations along the polarization directions of the piezoelectric elements upon receiving the vibration waves, and outputting electrical signals, the polarization directions of the piezoelectric elements being parallel to the surface of the touch display screen; a control part, used for receiving the electrical signals, determining touch information of the touch operations according to the electrical signals, and forming touch feedback at touch positions according to coordinate data in the touch information. A minimum of only three piezoelectric elements are required to implement sensing and positioning of the touch operations, thereby reducing the cost of the interactive tablet. In addition, arranging the polarization directions of the piezoelectric elements to be parallel to the surface of the touch display screen significantly increases the sensitivity of the piezoelectric elements.
Inventors:
QIN LIANG (CN)
Application Number:
PCT/CN2021/121561
Publication Date:
December 23, 2021
Filing Date:
September 29, 2021
Export Citation:
Assignee:
GUANGZHOU ZHONGYUAN INTELLIGENT TECH CO LTD (CN)
Attorney, Agent or Firm:
BEIJING HENGBO INTELLECTUAL PROPERTY AGENT LTD. (CN)
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