Multi-Array LED Chip with Variable Sizes for Vehicle Head Lamps
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Solution Overview
Problem
Existing LED head lamps for vehicles face challenges in maintaining visibility for drivers while preventing light blindness to oncoming vehicles, as current systems with uniform LED elements suffer from decreased light efficiency due to excessive light shielding and inadequate light distribution patterns.
Innovation Solution
A multi-array LED chip system where LED elements of varying sizes are individually turned on and off to correspond to the location of oncoming vehicles, with central and variable LED elements arranged in rows to adjust width and height based on the center of the light emission, improving light efficiency and preventing light blindness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If LED elements of the same size are turned on and off to correspond to oncoming vehicle location, then light blindness prevention is achieved, but visibility deteriorates due to excessive light shielding
Solution Approach 1:
The LED array is divided into multiple independently controllable LED elements with different light emitting areas. Each LED element can be selectively turned on or off based on the detected position of oncoming vehicles, allowing precise control of light distribution without excessive shielding.
Solution Approach 2:
LED elements are designed with different light emitting areas (sizes) to match different angular regions. Smaller LED elements correspond to distal locations while larger LED elements correspond to proximal locations. This local differentiation allows optimal light emission for each specific direction without unnecessary shielding.
2Device complexity
If uniform LED elements are used for high beam emission, then device complexity is reduced, but light efficiency decreases due to inadequate light distribution
Solution Approach 1:
LED elements are designed with different light emitting areas (sizes) to match different angular regions. Smaller LED elements correspond to distal locations while larger LED elements correspond to proximal locations. This local differentiation allows optimal light emission for each specific direction without unnecessary shielding.
Solution Approach 2:
The light emitting area parameter of LED elements is varied according to their position in the array. By changing the size parameter of LED elements based on their angular correspondence, the system achieves improved light efficiency and distribution patterns.
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
The system enhances visibility and light efficiency by dynamically adjusting LED element sizes and activation based on the vehicle's location, effectively preventing light blindness and improving light quality through precise light distribution.
Implementation Method 1
the LED is a diode that emits excess energy as light when injected electrons and holes are coupled again
Implementation Method 2
a reflection mirror 12 which adjusts a direction of light from the LED light source 11
Implementation Method 3
a lens 13 which protects the LED light source 11
Data Source
AI summary
The present invention relates to a multi-array chip for a vehicle, including a plurality of LED element having different sizes arranged and installed to emit light, and a head lamp having the multi-array chip for a vehicle. Accordingly, with variable LED elements which are individually turned on and off so as to correspond to a location of an oncoming vehicle, and have different sizes, visibility at the front side of a vehicle may be secured, and light blindness to a driver in the oncoming vehicle, may be prevented.