Inductive Coil Display Panel Circuit Without Traditional Power Supply
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Solution Overview
Problem
Conventional display panels have poor use effects due to inefficient power supply mechanisms.
Innovation Solution
A display panel design incorporating a coil capable of generating current through electromagnetic induction, connected to electrodes and integrated with a voltage stabilizing circuit, rectifying circuit, and driving circuit, allowing operation without a traditional power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional power supply is used to power the light emitting unit, then the display panel can operate reliably, but the usage effectiveness and operational efficiency are poor
Solution Approach 1:
The patent removes the traditional power supply component from the display panel structure and replaces it with a coil that generates current through electromagnetic induction from an external electronic device. This extraction of the power supply function eliminates the need for separate power supply components while enabling wireless operation.
Solution Approach 2:
The coil serves multiple functions: it acts as both the power generation component through electromagnetic induction and as part of the driving circuit structure. This multi-functionality reduces the overall device complexity while maintaining operational reliability.
2Adaptability or versatility
If a coil is added to generate current through electromagnetic induction, then the power supply requirement is eliminated, but the device structure becomes more complex
Solution Approach 1:
The patent combines the coil structure with the existing driving circuit components (voltage stabilizing circuit, rectifying circuit, and driving circuit) into an integrated system. The coil is electrically connected to these circuits, merging the power generation function with the control function, which reduces overall structural complexity despite adding electromagnetic induction capability.
Solution Approach 2:
The voltage stabilizing circuit and rectifying circuit act as intermediaries between the coil's generated current and the light emitting unit. These intermediary components regulate and condition the induced current, enabling reliable operation without requiring a traditional power supply while maintaining circuit efficiency.
3Reliability
If voltage stabilizing and rectifying circuits are added, then the light emitting unit can operate without a power supply, but the circuit complexity increases
Solution Approach 1:
The voltage stabilizing circuit and rectifying circuit dynamically adjust and regulate the current from the coil to ensure stable operation of the light emitting unit. These dynamic control mechanisms maintain operational reliability by adapting to variations in induced current while integrating seamlessly with the overall circuit structure.
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
Enables display functionality without a power supply by harnessing electromagnetic induction, enhancing the use effects of the display panel.
Implementation Method 1
a coil disposed on the substrate, the coil being capable of generating current for operation of the light emitting unit
Data Source
AI summary
The display panel includes a substrate; a light emitting unit disposed on the substrate and including a first electrode, a second electrode and a light emitting layer, wherein the first electrode is disposed opposite to the second electrode, and the light emitting layer is located between the first electrode and the second electrode; a coil disposed on the substrate, the coil being capable of generating current for operation of the light emitting unit, the coil being electrically connected to the first electrode and/or the second electrode; a voltage stabilizing circuit, a rectifying circuit and a driving circuit, wherein an input terminal of the voltage stabilizing circuit is electrically connected to the coil, an output terminal of the voltage stabilizing circuit is electrically connected to an input terminal of the rectifying circuit, an output terminal of the rectifying circuit is electrically connected to an input terminal of the driving circuit, and an output terminal of the driving circuit is electrically connected to the light emitting unit.