Display Module Connector Sequencing to Prevent Arc Discharge
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Solution Overview
Problem
Traditional connector structures in display devices suffer from low work efficiency and assembly performance due to the need for separate connection and disconnection of cables, and are prone to arc discharge during movement, which reduces device durability.
Innovation Solution
A display device design featuring a contact-type connector with a first power connector and a first switching signal connector, where the power connector contacts the second connector before the switching signal connector, and includes an elastic conductor to manage movement and prevent arc discharge, utilizing a chassis assembly and printed circuit board to support the display module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a contact-type connector is used to improve assembly efficiency, then work efficiency and assembly performance are improved, but arc discharge occurs during movement between connectors
Solution Approach 1:
The power connector is designed to contact the mating connector before the switching signal connector during assembly. This preliminary action ensures that the power connection is established first, allowing controlled power supply before signal transmission begins, thereby preventing arc discharge while maintaining assembly efficiency
Solution Approach 2:
Instead of having the switching signal connector contact first (traditional sequence), the invention inverts the contact sequence so that the power connector contacts first. This reversal of the normal operation sequence prevents arc discharge by ensuring proper grounding and power establishment before signal transmission
2Reliability
If the power connector contacts before the switching signal connector, then arc discharge is prevented, but the connector structure becomes more complex
Solution Approach 1:
The power connector and switching signal connector are designed with asymmetric contact lengths, where the power connector has a longer contact portion that extends further toward the mating connector. This asymmetric design naturally ensures the power connector contacts first without requiring complex control mechanisms, resolving the contradiction between reliability and device complexity
3Reliability
If cable connection is used traditionally, then connector reliability is maintained, but work efficiency and assembly performance decrease
Solution Approach 1:
The invention merges the power connection and switching signal connection into a single integrated connector assembly. Both connections are established simultaneously through one coupling action, eliminating the need for separate cable connection procedures while maintaining connector reliability and significantly improving work efficiency
Data Source
AI summary
A display device includes a display module on which a second connector is provided; a chassis assembly configured to support the display module; a printed circuit board provided in the chassis assembly and configured to drive or control the display module; and a first connector electrically connected to the printed circuit board and arranged to match the second connector, the first connector being configured to transmit and receive electric signals to the display module, wherein the first connector may include a first power connector for power and a first switching signal connector for switching signal that have areas facing the second connector, each of the first switching signal connector and the first power connector has a length of an area in a direction in which the display module is coupled to the chassis assembly, the length of the area of the first switching signal connector is less than the length of the area of the first power connector, and in a state in which the display module is coupled to the chassis assembly, the first power connector contacts the second connector before the first switching signal connector contacts the second connector.