Cover Window Sloping Side Surfaces for Display Area Expansion
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Solution Overview
Problem
Existing display devices face challenges in maximizing the display area due to dead spaces created by the mounting configuration of the cover window and housing, which reduces design flexibility and overall size efficiency.
Innovation Solution
The display device incorporates a cover window with sloping side surfaces that are at least partially bent or curved, allowing for increased adhesion area and reduced dead space by mounting these surfaces on complementary surfaces of the housing, along with a polarizing plate and adhesive layers for enhanced attachment and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the cover window is mounted on the housing with conventional flat side surfaces, then the mounting structure is simple, but dead spaces are created that reduce the display area
Solution Approach 1:
The side surfaces of the cover window are configured to be curved rather than flat, allowing the mounting surface to better conform to the housing geometry. This curvature eliminates dead spaces between the cover window and housing, thereby maximizing the display area while maintaining structural integrity.
2Area of stationary object
If the side surfaces of the cover window are made curved to reduce dead space, then the display area increases, but the manufacturing complexity increases
Solution Approach 1:
The curvature radius of the side surfaces is optimized to balance the elimination of dead spaces with manufacturability. By carefully selecting the curvature parameters, the design achieves maximum display area while ensuring the cover window can be manufactured using conventional processes.
3Strength
If the cover window thickness increases from outer side toward interior, then structural strength is improved, but the overall device size increases
Solution Approach 1:
The cover window thickness is varied locally, being thicker at the inner surface near the display panel for structural strength and support, and thinner at the outer surface to minimize overall device size. This gradient thickness distribution optimizes both strength and compactness.
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
This configuration increases the display area by minimizing dead space, improving design flexibility and size efficiency while maintaining secure adhesion and protection of internal components.
Implementation Method 1
a first adhesive layer between the cover window and the display panel
Data Source
AI summary
A display device including a housing including sidewalls and mounting surfaces at upper ends of the sidewalls; a display panel housed in the housing; and a cover window on the display panel, wherein the cover window includes an upper surface that faces outwardly in a direction in which light is emitted, a lower surface opposite to the upper surface, the lower surface being narrower than the upper surface, and side surfaces that slope inwardly from ends of the upper surface to ends of the lower surface, the side surfaces being at least partially bent, and wherein the side surfaces of the cover window are mounted on the mounting surfaces of the housing.