Wall-Mount Double-Side LCD with Edge-Lit Backlight
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Solution Overview
Problem
Conventional LCD billboards are bulky, unadjustable, and require significant space, making them unsuitable for public spaces where they need to attract attention from multiple directions, and existing alternatives like acrylic and LED billboards have limitations such as high maintenance costs and inflexible content updates.
Innovation Solution
A wall mount double-sided liquid crystal display with a base, frame, two liquid crystal display units, edge-lit backlight units, a control unit, and a power unit, allowing for quick content changes and adjustable angles, reducing thickness and bulkiness by using edge-lit backlights and a pivotal connection for angle adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two liquid crystal displays are arranged in a back-to-back manner to face lookers in two opposite directions, then the display can attract attention from multiple directions, but the structure becomes bulky and takes up much space
Solution Approach 1:
The patent transitions from a three-dimensional back-to-back arrangement to a two-dimensional wall-mounted configuration. The liquid crystal display is mounted on a wall surface, utilizing the wall's plane to display content in two directions (front and back of the wall) without requiring volumetric space behind the display unit.
Solution Approach 2:
The patent employs edge-lit backlight units that use thin light-guiding films and optical sheets to provide illumination. This thin-film approach replaces traditional bulky backlight assemblies, enabling the display to be wall-mounted while maintaining double-sided visibility.
2Volume of moving object
If a wall mount LCD billboard is used to save space, then the display occupies minimal space, but it becomes unadjustable in angle and cannot face lookers in two opposite directions concurrently
Solution Approach 1:
The patent incorporates a pivotal connection element that enables the liquid crystal display to rotate or pivot relative to the wall mounting base. This dynamic mechanism allows the display to adjust its angle and orientation, providing adaptability in facing different directions while maintaining a compact wall-mounted form factor.
3Productivity
If conventional LCD billboards are used to display content, then content can be updated electronically, but the units are bulky and require significant space
Solution Approach 1:
The patent utilizes wall surface area rather than volumetric space for mounting the display. By transitioning from a freestanding volumetric structure to a wall-mounted planar structure, the display maintains electronic content update capabilities while occupying minimal spatial volume.
Solution Approach 2:
The edge-lit backlight construction using thin optical films reduces the overall thickness and volume of the display unit, enabling space-efficient wall mounting while preserving full electronic display functionality for content updates.
4Illumination intensity
If acrylic billboards are used to display content, then the display is visually attractive, but content updates require manufacturing new billboards which takes time and money
Solution Approach 1:
The patent replaces the mechanical/physical system of acrylic billboards (requiring manufacturing and physical replacement) with an electronic liquid crystal display system. This substitution enables digital content updates through electronic control, eliminating the need for physical manufacturing and installation of new billboards.
Solution Approach 2:
The liquid crystal display unit serves multiple functions: it provides visually attractive display similar to acrylic billboards, enables rapid electronic content updates, and maintains a compact wall-mounted form factor. The single device replaces both the visual display function and the content update function that previously required separate systems.
5Ease of repair
If LED billboards are used to display content, then maintenance costs are reduced compared to acrylic billboards, but the colors and patterns are less attractive and average viewing time is reduced
Solution Approach 1:
The patent employs edge-lit backlight technology with optimized optical parameters to enhance the visual output of the liquid crystal display. By carefully controlling light distribution, brightness, and color uniformity through the edge-lit configuration and optical films, the display achieves visual attractiveness comparable to or exceeding traditional billboards while maintaining the low maintenance advantages of electronic displays.
Data Source
AI summary
A wall mount double-sided liquid crystal display is simple in structure, lightweight, thin, adjustable in angle, and fixed to a wall, including a base fixed to a wall; a frame pivotally connected to the base through a pivotal connection element; a first liquid crystal display panel unit disposed in the frame; a second liquid crystal display panel unit disposed in the frame in a manner to be parallel and adjacent to the first liquid crystal display panel unit; a first edge-lit backlight unit disposed in the frame; a second edge-lit backlight unit disposed in the frame; a control unit disposed in the base and electrically connected to the first liquid crystal display panel unit, second liquid crystal display panel unit, first edge-lit backlight unit, and second edge-lit backlight unit; and a power unit disposed in the base and electrically connected to the control unit.