Refrigerator Display Front Cover With Diffusion Sheet for Uniform Lighting
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Solution Overview
Problem
Existing refrigerator displays have difficulty in achieving a sleek and clean appearance with variable illumination colors and uniform diffusion areas, and are prone to scratching due to the use of polycarbonate materials, which lack the durability of glass or acryl.
Innovation Solution
A display system featuring a front cover with a light transmission portion and a diffusion sheet attached to the rear, allowing for uniform light distribution and color variation, regardless of the front cover material, and enhancing the unity of display windows and other portions with identical colors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If diffusion ink is directly sprayed on the rear surface of the operational control signal input unit to form the diffusion area, then the diffusion area can be formed, but the boundary portion of the diffusion area is clearly defined and it is difficult to partly vary a color of the diffusion ink
Solution Approach 1:
The diffusion area is divided into multiple independent diffusion regions, each capable of displaying different colors. This segmentation allows partial color variation without affecting the entire diffusion area, resolving the contradiction between ease of manufacture and color variation capability.
2Ease of manufacture
If the operation control signal input unit is formed of polycarbonate to allow diffusion ink absorption, then the diffusion area can be formed, but the front surface might be easily scratched or torn due to less strength and durability
Solution Approach 1:
The operational control signal input unit uses a composite structure combining a polycarbonate sheet with a printed layer and diffusion area. This composite material approach allows the polycarbonate to provide diffusion ink absorption while the overall structure maintains durability, resolving the contradiction between ease of manufacture and surface strength.
3Manufacturing precision
If a diffusion sheet is attached on the front cover, then uniform light distribution can be achieved, but the structure becomes more complex
Solution Approach 1:
A thin diffusion sheet is attached to the front cover to achieve uniform light distribution. This thin film approach provides the desired optical uniformity while minimizing structural complexity and maintaining ease of assembly.
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
The solution provides a clean and sleek appearance with uniform light distribution and varied illumination colors, improving durability and aesthetic unity by using a diffusion sheet attached to the rear of the front cover, which can be made of glass or acryl, reducing the risk of scratching.
Implementation Method 1
a diffusion sheet provided in rear of the front cover and uniformly diffusing the light
Data Source
AI summary
A display for a refrigerator, which can uniformly form a diffusing area, is provided. The display includes a process unit receiving a variety of operation signals for operating the refrigerator, a front cover provided in front of the process unit and including a pushing portion displaying an input location of a user and a light transmission portion transmitting light, and a diffusion sheet provided in rear of the front cover and uniformly diffusing the light.