Wireless PCB-to-Display Data Transmission via Electromagnetic Induction
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Solution Overview
Problem
Existing display apparatuses require physical connections between printed circuit boards (PCBs) and display panels, which complicates manufacturing and reworking processes, and can lead to damage during component reuse.
Innovation Solution
A wireless connection system between PCBs and display panels, utilizing transmission and reception pads with wireless data and power transmission capabilities, allowing for wireless data and power transmission without physical coupling, and including a transmission determination unit for retransmission if data is not successfully transmitted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical connections are used between PCB and display panel, then reliable data and power transmission is achieved, but manufacturing complexity and time increase, and component reuse becomes difficult
Solution Approach 1:
The patent replaces the mechanical physical connection system with an electromagnetic field-based wireless transmission system. The transmission pad unit on the PCB and reception pad unit on the display panel use electromagnetic induction to transmit data and power signals without physical contact, thereby eliminating connection structure complexity while maintaining transmission reliability through field-based coupling.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium between the transmission pad unit and reception pad unit. This intermediary enables energy and data transfer without direct physical contact, resolving the contradiction by providing a non-mechanical transmission path that simplifies the overall connection structure while ensuring reliable signal delivery.
2Power
If physical connections are used between PCB and display panel, then stable power supply is ensured, but manufacturing time increases due to connection requirements
Solution Approach 1:
The patent substitutes mechanical power transmission through physical connectors with electromagnetic field-based wireless power transmission. The transmission pad unit generates electromagnetic fields that induce corresponding fields in the reception pad unit, enabling stable power delivery to the display panel without the time-consuming process of physical connection assembly.
3Measurement precision
If physical connections are used between PCB and display panel, then precise signal transmission is achieved, but component reworking and reuse become difficult
Solution Approach 1:
The patent replaces mechanical signal transmission through physical connectors with electromagnetic field-based wireless signal transmission. This substitution eliminates the need for physical plugging and unplugging operations, allowing display panels to be easily removed, reworked, or reused without damage to connection interfaces, while maintaining signal transmission precision through controlled electromagnetic coupling.
4Productivity
If wireless transmission pads are used, then manufacturing time is reduced and component reuse is facilitated, but transmission reliability may be compromised
Solution Approach 1:
The patent incorporates a transmission determination unit that monitors the wireless transmission process and provides feedback on transmission status. This feedback mechanism allows the system to detect transmission quality and reliability in real-time, compensating for the potential reliability concerns of wireless transmission while maintaining the manufacturing efficiency benefits of eliminating physical connections.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces manufacturing time by eliminating the need for physical connections, facilitates easier reworking and reuse of components, and prevents damage by enabling wireless data and power transmission between PCBs and display panels.
Implementation Method 1
a wireless transmission pad unit (110) which wirelessly transmits the data transmission signal as wireless data, and a display panel having a wireless reception pad unit (210) which is coupled to the wireless transmission pad unit (110) and wirelessly receives the wireless data
Implementation Method 2
the wireless transmission pad unit (110) wirelessly transmits the transmitted power as a wireless power, and the wireless reception pad unit (210) wirelessly receives the wireless power to output a received power
Data Source
AI summary
A display apparatus includes a printed circuit board including a transmission control unit for outputting input image data, a wireless data generating unit for converting the input image data to a data transmission signal, and a wireless transmission pad unit for wirelessly transmitting the data transmission signal as wireless data, and a display panel having a wireless reception pad unit which is coupled to the wireless transmission pad unit and wirelessly receives the wireless data to output a data reception signal, and a wireless data restoring unit for converting the data reception signal to restored image data.