LED Display Louver Panel for Light Trespass and Contrast Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LED light displays face challenges in minimizing light trespass while maintaining image quality, as prior shading devices fail to effectively control light emission and improve contrast for intended viewers.
Innovation Solution
A louver panel with uniquely shaped and spaced openings to receive LED bulb arrays, providing directional control over light emission, enhancing viewing angles and contrast, and minimizing light spillage by positioning louvers in a regular pattern to block light in unwanted directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If shading devices are added to block light emission, then light trespass is reduced, but image quality and viewing contrast deteriorate
Solution Approach 1:
The louver panel is divided into multiple individual louver elements arranged in a grid pattern, with each louver independently positioned to control light from specific LED elements. This segmentation allows precise directional control of light blocks while maintaining overall image quality, as each louver can be optimized for its specific location without affecting the entire display.
Solution Approach 2:
The louver panel implements local quality by varying the orientation, angle, and positioning of individual louver elements based on their specific location relative to LED elements and viewing zones. This allows each region of the panel to optimize light blocking for its particular direction while preserving image quality for intended viewing angles, rather than applying a uniform shading approach.
2Loss of energy
If louvers are positioned to block light in unwanted directions, then light spillage is minimized, but viewing angles and contrast for intended audience deteriorate
Solution Approach 1:
The louver elements are designed with asymmetric geometries and orientations tailored to specific locations on the panel. Each louver's angle, tilt, and shape are asymmetrically configured to block light in unwanted directions (such as toward neighboring areas) while allowing optimal light transmission toward intended viewing zones, thereby reducing light spillage without compromising viewing contrast.
Solution Approach 2:
The louver panel utilizes three-dimensional spatial arrangement by extending louver elements at various angles and depths from the panel surface. This dimensional approach allows light to be blocked in specific directions through angular orientation while maintaining brightness and contrast for viewers in intended directions, effectively managing light spillage without sacrificing illumination quality.
3Ease of operation
If individual shade members are used for each LED, then light control is improved, but device complexity increases
Solution Approach 1:
Multiple individual louver elements are merged into a single integrated louver panel assembly that functions as one cohesive unit. The louver panel combines numerous light-controlling elements into a unified structure that can be installed and operated as a single device, reducing overall system complexity while maintaining the light control benefits of individualized shading for each LED element.
Data Source
AI summary
A LED light display having a plurality of LED bulb arrays and a louver panel defining a plurality of hole arrays. Each hole array can define openings that are sized and spaced to receive at least the distal end portions of the bulbs forming a single LED bulb array. The louver panel further has a plurality of shaped protrusions in the form of louvers that are configured to extend outwardly and forwardly from a front surface of the louver panel and are arranged in a plurality of columns and in a plurality of rows in regularly repeating patterns related to the pattern of the placement of a plurality of the plurality of hole arrays in the louver panel and are further configured to block at least a portion of the emission of light from the LED bulbs in both a horizontal and vertical direction.