A step difference control system and method based on the principle of capacitance

By using a step difference control system based on the principle of capacitance, the step difference of the display module is detected and adjusted in real time, which solves the problem of inaccurate step difference control in traditional processes, improves the assembly quality and production efficiency of the display, and reduces costs.

CN122280937APending Publication Date: 2026-06-26SOUTH CHINA UNIV OF TECH +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Filing Date
2026-04-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the existing technology, the step control of in-vehicle displays lacks direct design, which makes it impossible to guarantee the consistency of step tolerance under the trend of ultra-narrow bezels, increasing quality and design costs, and the traditional assembly process is inefficient.

Method used

A step control system based on the principle of capacitance is adopted. By detecting the capacitance value between the fixture and the suction cup in real time, the central processing unit calculates the step difference value, and the actuator adjusts the position of the suction cup to achieve precise control of the display module.

Benefits of technology

It enables high-precision, non-contact real-time detection and adjustment between the display module and the base shell, significantly improving assembly quality and production efficiency, reducing costs and improving product consistency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122280937A_ABST
    Figure CN122280937A_ABST
Patent Text Reader

Abstract

This invention discloses a step difference control system and method based on the principle of capacitance, comprising: a fixture disposed below the bottom shell of the display screen, serving as the first plate of a capacitor; a suction cup disposed parallel above the fixture, serving as the second plate of the capacitor; a suction nozzle on the lower surface of the suction cup for adsorbing the display module whose step difference needs to be adjusted; a capacitance detection device for real-time detection of the capacitance value between the first and second plates; a central processing unit communicatively connected to the capacitance detection device, for receiving the capacitance value between the first and second plates, calculating the current step difference value based on the current capacitance value, and outputting an adjustment command based on a comparison between the current step difference value and the target step difference value; and an actuator for adjusting the vertical position of the suction cup or suction nozzle relative to the fixture according to the adjustment command. This invention achieves precise control of the step difference of the display module by real-time detection of the capacitance value between the fixture and the suction cup and adjusting the vertical position of the suction cup accordingly.
Need to check novelty before this filing date? Find Prior Art