Modular Display Power Transfer Using Wireless Electrodes and Optical Links
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Solution Overview
Problem
The assembly of modular display apparatuses is complex and costly due to the increased number of display modules, leading to reduced yield and higher defect rates, primarily due to the complexity of connecting power and data lines.
Innovation Solution
A display apparatus with variable inductors and optical signal transmission between modules, using a frame with holes for optical signal transfer and a power supply module that wirelessly transfers power through electrode plates, reducing the need for physical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the number of display modules is increased to implement a greater size of modular display apparatus, then the display size is improved, but the manufacturing complexity and defect rate increase
Solution Approach 1:
The patent combines power transmission and data communication functions into a single wireless communication channel. The display apparatus transmits both power signals and data signals through the same wireless communication module, eliminating the need for separate physical connections for power and data, thereby reducing assembly complexity while enabling larger modular configurations
2Area of stationary object
If the number of display modules is increased to implement a greater size of modular display apparatus, then the display size is improved, but the defect rate increases
Solution Approach 1:
The patent replaces mechanical connections (physical cables and connectors for power and data) with wireless communication technology. This substitution eliminates contact points and connection interfaces that are prone to defects, thereby improving reliability while enabling larger modular display configurations
3Power
If physical power lines and data signal lines are used to connect display modules, then power and data transmission is achieved, but the assembly process becomes complex and costly
Solution Approach 1:
The patent implements a multi-functional wireless communication module that simultaneously handles power transmission, data communication, and control functions. This universal interface replaces multiple separate physical connections (power lines, data lines, control lines), thereby reducing manufacturing complexity and cost while maintaining all necessary transmission functions
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 approach simplifies the assembly process, reduces manufacturing costs, and enhances the design flexibility of large-scale display systems by enabling efficient power and data transmission without physical cables.
Implementation Method 1
a power supply module configured to supply an AC power received from an external apparatus to each of the plurality of display modules
Implementation Method 2
identifying an inductance based on a capacitance caused by a contact between the first electrode plate and the second electrode plate
Implementation Method 3
controlling an on/off of the switch for a variable inductor included in each of the plurality of display modules based on the identified inductance
Data Source
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AI summary
A display apparatus is provided. The display apparatus includes a plurality of display modules, each of the plurality of display modules including a first electrode plate provided on a back surface of the display module; a frame including a plurality of areas to which the plurality of display modules are respectively mounted; a power supply module including a second electrode plate, the second electrode plate being disposed on a back surface of the frame and adjacent to the first electrode plate. The power supply module is configured to provide an alternating current (AC) power received from an external apparatus to each of the plurality of display modules, and each of the plurality of display modules is configured to convert the AC power to a direct current (DC) power.