Transparent Refrigerator Door Display With Light Guide Protection
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Solution Overview
Problem
Conventional refrigerators require opening the door to confirm the storage of food, leading to unnecessary leakage of cool air and increased energy consumption, as the interior is not visible without opening the door.
Innovation Solution
A refrigerator with a selectively transparent door panel that allows users to see the interior without opening it, equipped with a transparent display assembly that includes a light guide plate, spacer, and display light, which can be made opaque or display a screen, and is designed to prevent damage from door impacts and long-term use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the door is made opaque for protection, then the door structure is simple and durable, but the interior cannot be seen without opening the door
Solution Approach 1:
The door panel incorporates a transparent display assembly that can change its optical properties between transparent and opaque states. This allows the door to adapt its transparency based on operational requirements, enabling interior visibility when needed while maintaining simplicity and durability in its base structure.
2Loss of information
If the door is opened frequently to check food storage, then the interior is visible, but cool air leakage increases and energy consumption rises
Solution Approach 1:
The transparent display assembly allows users to view the refrigerator interior through the closed door by switching to a transparent state. This eliminates the need to open the door frequently to check food storage, thereby preventing cool air leakage and reducing energy consumption while maintaining convenient access to interior information.
3Adaptability or versatility
If the transparent display assembly is made movable, then flexibility is improved, but the display light may be damaged from impacts or long-term use
Solution Approach 1:
The light guide plate is equipped with a stopper that prevents excessive movement before damage can occur. This preliminary protective measure limits the range of motion to safe boundaries, preventing the display light from being damaged by impacts or long-term use while still allowing necessary flexibility for assembly and thermal expansion.
Solution Approach 2:
The stopper structure acts as a cushioning element positioned in advance to absorb and limit movement of the light guide plate. This prevents direct impact transmission to the display light, protecting it from damage during door impacts or prolonged operation while maintaining system flexibility.
4Illumination intensity
If the light guide plate is disposed close to the display, then brightness is improved, but the display light may be damaged from contact
Solution Approach 1:
The stopper is positioned to prevent the light guide plate from moving into contact with the display light, establishing a safety boundary before damage can occur. This allows the light guide plate to be disposed close to the display for optimal brightness while maintaining protection against contact damage through the preventive stopper mechanism.
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 users to verify the storage of food without opening the door, reducing energy loss and enhancing user convenience by maintaining a stable and durable transparent display system.
Implementation Method 1
a light guide plate spaced apart from the display to brighten up the display
Data Source
AI summary
A refrigerator includes a cabinet, a door, and a transparent display assembly covering an opening of the door through which an inside of the refrigerator is visible. The transparent display assembly includes a front panel, a rear panel defining, a display disposed between the front and second panels, a light guide plate spaced apart from the display, a spacer disposed between the front panel and the light guide plate and configured to maintain a predetermined distance between the light guide plate and the display, a display light configured to emit light to the light guide plate, and a light guide plate stopper disposed between an end of the light guide plate and the display light and configured to prevent the display light from contacting the end of the light guide plate by protruding toward the light guide plate further than the display light.