Transparent OLED Display for Vending Machine Door Frame
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Solution Overview
Problem
Traditional vending machines with static customer-facing displays cannot dynamically change content or control product exposure to sunlight and ambient conditions, limiting their effectiveness in showcasing products.
Innovation Solution
Integration of a transparent organic light-emitting diode (OLED) display within the vending machine door frame assembly, allowing for dynamic content display and adjustable transparency to control product exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a transparent panel is used to allow customers to view products, then product visibility is improved, but product exposure to sunlight and ambient conditions worsens
Solution Approach 1:
The patent applies parameter changes by using an electrochromic or PDLC (polymer-dispersed liquid crystal) panel that can dynamically change its transparency parameter. The panel transitions between transparent and opaque states based on electrical signals, allowing the system to adjust product visibility and simultaneously control exposure to harmful ambient conditions like sunlight.
2Loss of information
If a static graphic display is used on the customer-facing panel, then product information is provided, but the display cannot be changed without significant effort
Solution Approach 1:
The patent applies dynamics by replacing static graphic displays with dynamic electronic display elements such as LCD screens, LED matrices, or e-ink displays integrated into the customer-facing panel. These displays can be electronically updated to show different product information, promotions, or images without requiring physical replacement of panels or graphics.
Solution Approach 2:
The patent applies universality by integrating multiple functions into the customer-facing panel: it serves as both a transparent viewing panel for products and an electronic display medium for dynamic information. This multi-functional design eliminates the need for separate static graphics while providing both product visibility and programmable information display capabilities.
3Loss of information
If a traditional opaque display is used, then product information can be displayed, but customer ability to view actual products is reduced
Solution Approach 1:
The patent applies parameter changes by using a transparent or translucent panel material that allows visible light transmission, enabling customers to see actual products behind the panel while still displaying product information through integrated electronic displays, LED lighting, or printed graphics on the panel surface.
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
Enhances product visibility and marketing capabilities by enabling dynamic content display and customizable exposure to sunlight, improving customer engagement and product presentation.
Implementation Method 1
The transparent electronic display may be an organic light emitting diode (OLED) type display
Data Source
AI summary
A vending machine with a transparent electronic display includes a pair of lighting strips for illuminating a storage compartment which holds retails goods. A door frame assembly covers the front of the storage compartment. A cover glass is placed in front of and spaced apart from the transparent electronic display. A series of brackets connect the cover glass and the transparent electronic display to a door frame assembly and cover the gap between the cover glass and the transparent electronic display, masking the region located beyond the brackets.