Wire-Bonded LED Module Without Circuit Board
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Solution Overview
Problem
Conventional light emitting diode (LED) modules require a circuit board for electrical connection, which limits flexibility and increases the occupied area, making it difficult to connect multiple LEDs efficiently without additional circuitry.
Innovation Solution
A light emitting module where LEDs are directly connected by wires with coupling parts located above the LED bodies, eliminating the need for a circuit board and allowing for flexible arrangement and reduced occupied space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a circuit board is used to connect multiple LEDs, then electrical connection is achieved, but the occupied area increases and flexibility is reduced
Solution Approach 1:
The patent extracts the circuit board from the system by directly connecting LED modules through wires. The wiring structure is separated from the traditional PCB mounting approach, allowing LEDs to be connected without requiring a rigid circuit board substrate, thereby reducing occupied area and increasing flexibility.
Solution Approach 2:
The patent transitions from a two-dimensional PCB layout to a three-dimensional wiring structure where wires can route in multiple spatial dimensions. This allows LED modules to be connected in space without being constrained to a flat circuit board plane, reducing the occupied footprint area while maintaining electrical connectivity.
2Device complexity
If a circuit board is used to connect multiple LEDs, then electrical connection is achieved, but device complexity increases
Solution Approach 1:
The patent merges the electrical connection function directly into the wire structure itself, eliminating the need for a separate circuit board. The wires serve both as mechanical support and electrical conductors, integrating multiple functions into a single component and reducing overall device complexity while maintaining reliable connections.
Solution Approach 2:
The wire structure performs multiple functions simultaneously: it provides mechanical support for the LED modules, serves as the electrical conductor for current flow, and acts as the mounting structure. This multi-functionality reduces the need for additional components like circuit boards, simplifying the overall device 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
This solution enables efficient connection of LEDs without a circuit board, enhancing flexibility and reducing the occupied area, while maintaining reliable electrical contact and light emission efficiency.
Implementation Method 1
a wire connecting the light emitting devices with each other and having at least a first end portion coupled with each light emitting device
Implementation Method 2
a light emitting chip disposed on at least one of the first and second lead frames
Implementation Method 3
a light emitting device (LED), which is a kind of a semiconductor device to convert electrical energy into light
Data Source
AI summary
Disclosed are a light emitting module and a light emitting device. The disclosed light emitting module includes a plurality of light emitting devices and a wire connecting the light emitting devices with each other and having at least a first end portion coupled with each light emitting device. The wire has a length longer than a distance between the light emitting devices, and is located higher than bottom surfaces of the light emitting devices. Each light emitting device includes a body including an insulating material, a first lead frame making contact with the body and having a first coupling part, a second lead frame making contact with the body and having a second coupling part, and a light emitting chip on at least one of the first and second lead frames. The first and second coupling parts are located higher than the bottom surfaces of the light emitting devices, and the wire is coupled with the first and second coupling parts of the light emitting devices.