触控芯片及其信号处理方法
By configuring a selector module and multiple amplifiers in the touch chip, multiple touch blocks of the touch screen are selectively electrically coupled to form different numbers of selected blocks, and signals are read during scanning in different directions. This solves the problem of increased cost and area when the touch chip supports an active pen, and achieves efficient touch sensing and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ILI TECHNOLOGY CORPORATION
- Filing Date
- 2022-05-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing touch chips require an increased number of charge-voltage converters to support active pens, leading to increased area and cost, making it difficult to balance touch sensing quality and cost control.
By configuring a selector module and multiple amplifiers in the touch chip, multiple touch blocks of the touch screen are selectively electrically coupled to form different numbers of selected blocks, and signals are read during scanning in different directions, reducing the number of charge-voltage converters and balancing touch sensing quality and cost.
This technology enables high-frequency reporting of active pens without adding a charge-voltage converter, reducing the cost of touch chips and improving the accuracy and efficiency of touch sensing.
Smart Images
Figure CN117130500B_ABST