Scrolling Backlit Display With Dual Webs And Multi-Color LEDs
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Solution Overview
Problem
Existing scrolling and backlit displays can only show one graphic at a time, limiting the ability to display multiple graphics that share common background elements without printing them on the same web, and lack vibrant color effects.
Innovation Solution
A scrolling display device with two flexible webs, one for background and one for foreground graphics, driven by separate mechanisms, combined with a backlight panel illuminated by multi-color LED light sources, allowing simultaneous scrolling and dynamic color changes to create vibrant and attractive illumination effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single fixed web is used for display, then the device structure is simple, but only one graphic can be displayed at a time
Solution Approach 1:
The display system is segmented into multiple independent webs (foreground web and background web) that can be scrolled separately. Each web carries different graphic content, allowing simultaneous display of multiple graphics without requiring a single complex reconfigurable web. This segmentation enables versatile display capability while keeping each web's structure simple.
Solution Approach 2:
The invention transitions from a single-plane display to a multi-layer display by introducing foreground and background webs at different depths. This dimensional change allows multiple graphics to be displayed simultaneously in different layers, enhancing adaptability without significantly increasing overall device complexity.
2Adaptability or versatility
If multiple graphics are displayed on the same web, then multiple graphics can be shown, but they cannot share common background elements
Solution Approach 1:
By separating the display into foreground and background webs, the invention allows independent design and manufacturing of each web's graphics. Background elements can be printed once on the background web and reused across multiple foreground graphics, significantly easing the manufacturing process compared to printing complete composite graphics on a single web.
Solution Approach 2:
The background web serves as a universal element that can be paired with multiple different foreground webs. This multi-functionality allows a single background web to support numerous different graphic displays, enhancing versatility while reducing manufacturing complexity through reuse.
3Illumination intensity
If conventional backlighting is used, then the display is simple, but it cannot provide vibrant color effects
Solution Approach 1:
The backlight system uses individual LED modules positioned at different locations that can emit different colors. This local quality control allows different portions of the display to have different color characteristics, creating vibrant color effects while keeping each LED module relatively simple in structure.
Solution Approach 2:
The backlight system is made dynamic by enabling independent color control of multiple LED modules. This allows the illumination characteristics to change over time and respond to different display content, enhancing color vibrancy while maintaining a relatively simple static hardware 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
Enables the simultaneous display of multiple graphics with shared backgrounds and dynamic color effects, enhancing visual appeal and flexibility in advertising and information display.
Implementation Method 1
a backlight panel illuminated by multi-color LED light sources
Data Source
AI summary
A unique scrolling backlit display used for advertising or the like features two sets of spools carrying separate webs thereon that respectively contain background and foreground imagery, whereby scrolling of one web relative the other increases the number of distinct visuals that can be attained with the device, and also allows dynamic animation-like displays in which foreground images change over a maintained background, or vice-versa. Multi-color LED light sources in the backlighting device are operable to create vibrant, dynamic lighting effects, while illumination of the display housing further increases the visual appeal of the display.