Wireless video transmission system for liquid crystal display
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Solution Overview
Problem
Retail display cases face limited space for additional point-of-sale advertising, and existing solutions do not effectively utilize the transparent glass to enhance product visibility while allowing for additional advertising without clutter.
Innovation Solution
A wireless transmission system for transparent LCDs is integrated into display cases, with transmitters/receivers positioned below and above the LCD, sandwiched between glass panels, utilizing LEDs for illumination and thermal management to maintain a clear view while allowing for heat dissipation through convection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transparent LCD is integrated into display case glass to enable additional advertising, then advertising capability is improved, but heat dissipation becomes problematic due to confined space
Solution Approach 1:
The patent extends the heat dissipation path from the confined 2D space between glass panels into the 3D external environment by incorporating protruding heat sinks that extend beyond the display case boundaries, allowing heat to dissipate into surrounding air through convection and radiation
Solution Approach 2:
The patent introduces thermal paste as an intermediary substance between the LCD backlight unit and the heat sink structure, improving thermal conduction efficiency by filling microscopic gaps and air pockets that would otherwise impede heat transfer
2Device complexity
If wireless transmitters/receivers are positioned close to LCD for compact design, then device complexity is reduced, but wireless signal transmission quality deteriorates
Solution Approach 1:
The patent introduces foam material as an intermediary element positioned between the wireless transmitters/receivers and the LCD assembly, serving as a radio frequency shield that prevents signal interference while maintaining physical integration and compact design
3Temperature
If LEDs are placed in thermal communication with rear glass for heat removal, then heat dissipation is improved, but manufacturing complexity increases due to additional thermal management structures
Solution Approach 1:
The patent combines the heat dissipation function with the existing rear glass structure by creating a heat sink that integrates with the glass panel, eliminating the need for separate heat dissipation components and simplifying the overall assembly process
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 effective additional advertising within display cases by maintaining product visibility and managing heat generated by electronic components, thus enhancing sales awareness without clutter.
Implementation Method 1
The mounting plate is preferably bonded to and in thermal communication with the rear glass so that any heat generated by the wireless transmitter/receiver can be transferred to the rear glass for removal by natural or forced convection
Implementation Method 2
heat can be removed by natural or forced convection
Implementation Method 3
The top LEDs are preferably placed in thermal communication with a top plate which is placed in conductive thermal communication with the rear glass. Similarly, the bottom LEDs are preferably placed in thermal communication with a bottom plate which is also placed in conductive thermal communication with the rear glass
Data Source
AI summary
The exemplary embodiments herein provide a transparent electronic display assembly having a front and a rear transparent sheet with a transparent electronic display located therebetween. A wireless transmitter/receiver may be placed adjacent to the transparent electronic display to receive image or video data wirelessly or to transmit status and feedback data. The transparent electronic display assembly may be used as a door for a cooler where a second wireless transmitter/receiver is positioned in a cavity below the cooler.