Lighting Apparatus Panel Connection with Auxiliary Wiring
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Solution Overview
Problem
Existing lighting apparatuses using LED or OLED panels suffer from non-uniform brightness due to internal resistance and reduced expandability due to the need for separate power cables for serial connections.
Innovation Solution
A lighting apparatus with panel connection means that electrically connects adjacent panels in series or parallel, utilizing auxiliary wirings to supply power and minimize voltage drop, allowing for easy expansion and uniform light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate power cables are used to electrically connect lighting panels in series, then electrical connection is achieved, but expandability is reduced due to cable length limitations
Solution Approach 1:
The power cable is segmented into multiple sections, with each lighting panel having its own dedicated power cable connection point. This allows each panel to be independently connected to the power supply, enabling easy expansion by simply adding more panels without being constrained by a single long cable's length limitations.
2Power
If lighting panels are connected in series with power cables, then power distribution is achieved, but brightness becomes non-uniform due to internal resistance
Solution Approach 1:
Each lighting panel is equipped with local power regulation components including current regulating resistors and capacitors connected in parallel with the light emitting devices. This local quality enhancement compensates for voltage drops and internal resistance variations, ensuring uniform brightness across all panels while maintaining proper power distribution.
3Power
If internal resistance of lighting panels is present, then power conduction is achieved, but brightness is reduced in the direction from first to nth panel
Solution Approach 1:
Capacitors are connected in parallel with the light emitting devices to provide feedback compensation for voltage drops caused by internal resistance. This feedback mechanism maintains stable voltage levels across all panels, preventing brightness reduction in panels further from the power supply source while allowing continuous power conduction through the series connection.
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
Facilitates easy connection and expansion of lighting panels while ensuring uniform brightness by minimizing voltage drop and maintaining high light emission uniformity across panels.
Implementation Method 1
a lighting apparatus using a light emitting diode (LED) has been developed
Implementation Method 2
an organic light emitting diode (OLED) lighting panel using an organic light emitting device instead of an LED module
Implementation Method 3
each of the plurality of lighting panels may include first and second auxiliary wirings electrically connected between adjacent panel connection means
Data Source
AI summary
The present invention provides a lighting apparatus which is easy in expandability of a plurality of lighting panels. The lighting apparatus according to the present invention may include: a plurality of lighting panels including an emission part having a light emitting device which emits light with a current flowing between a first electrode and a second electrode; and a panel connection means disposed between the plurality of lighting panels to electrically connect first and second electrodes between adjacent lighting panels. Each of the plurality of lighting panels may include first and second auxiliary wirings electrically connected between adjacent panel connection means.