LED Display Louvers for Light Trespass Control
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Solution Overview
Problem
Existing LED light displays suffer from light trespass, emitting light into unintended areas and compromising image quality, as they lack effective solutions to minimize light emission in unwanted directions while maintaining optimal performance for the intended audience.
Innovation Solution
The implementation of a printed circuit board (PCB) with LED diodes and strategically positioned blocking elements, such as louvers, to control light emission, creating distinct viewing regions that allow light to be blocked in specific directions, thereby reducing light trespass while preserving image quality for the target audience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED light displays emit light in a hemispherical direction to provide wide viewing angles, then image quality and visibility for the target audience is improved, but light trespass into unintended areas increases
Solution Approach 1:
The patent segments the viewing space into multiple distinct viewing regions (first viewing region, second viewing region, third viewing region) with different light emission characteristics. By dividing the hemispherical emission pattern into controlled segments, the display can provide intense light to the target audience while blocking light from entering sensitive areas, thereby resolving the contradiction between illumination intensity and light trespass.
Solution Approach 2:
The patent applies local quality by creating different optical properties in different spatial zones. The first viewing region (target audience area) receives full light emission with high intensity, while the second and third viewing regions (sensitive areas) receive blocked or diminished light. This localized differentiation of light emission quality allows the display to simultaneously achieve high illumination for the audience and minimize light trespass to sensitive areas.
2Object-affected harmful factors
If blocking elements are added to control light emission directions, then light trespass is reduced, but device complexity increases
Solution Approach 1:
The patent makes the blocking elements multi-functional by designing them to simultaneously block light from sensitive areas while preserving and enhancing light emission to the target audience. The blocking elements are not merely obstruction devices but are strategically positioned to create the desired light distribution pattern, serving both the function of reducing light trespass and maintaining image quality for the audience, thereby offsetting the added structural complexity.
3Object-affected harmful factors
If light is blocked in specific directions to protect sensitive areas, then light trespass is minimized, but overall light utilization ratio decreases
Solution Approach 1:
The patent applies local quality by creating different optical properties in different spatial zones. The first viewing region (target audience area) receives full light emission with high intensity, while the second and third viewing regions (sensitive areas) receive blocked or diminished light. This localized differentiation of light emission quality allows the display to simultaneously achieve high illumination for the audience and minimize light trespass to sensitive areas.
Solution Approach 2:
The patent converts the potentially harmful light that would otherwise trespass into sensitive areas into a beneficial directed emission toward the target audience. By strategically positioning blocking elements, the display redirects light that would have been wasted in unwanted directions toward the intended audience, thereby converting the harm of light trespass into the benefit of improved light utilization ratio and enhanced audience visibility.
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 effectively minimizes light trespass into sensitive areas while maintaining the industry-standard optical performance for the intended audience, ensuring that only the target audience receives the light emission, thus addressing regulatory concerns and enhancing the installation approval process.
Implementation Method 1
one or more LED diodes connected to the PCB; whereby light emitted from one or more LED diodes is blocked in at least one direction
Data Source
AI summary
The present invention is an optical LED light display incorporating one or more louvers operable to limit the light emission in a specified direction from a LED diode within the LED light display, each louvers being positioned in relation to each LED light element in the LED light display. The specified direction of the light emission may be towards a target audience or a target direction. A method of the present invention that may be implemented by a software program processed by computer processors of a computer device, may be operable to enable the design of the LED display louver for installation in a specific area to enable simultaneous elimination of light trespass and preservation of image quality for the target audience. A LED light display can be manufactured, configured and installed in accordance with the method.