Translucent Display Panel Geometric Structures for Edge Sharpness
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Solution Overview
Problem
Existing display panels in handheld appliances lack high edge sharpness and appealing optical effects, resulting in blurry images when using light-opaque masking on translucent carrier elements.
Innovation Solution
A display panel with geometric structures as protrusions and/or depressions on both sides of a translucent carrier element, where the structures are congruent or mirror-symmetrically formed, achieving high edge sharpness and optical effects like halos when backlit, with an optional light-opaque masking and transparent layer for enhanced contrast.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If only light-opaque masking is applied on the inner side of a translucent carrier element, then the manufacturing process is simple, but the image sharpness and edge definition deteriorate resulting in blurry images
Solution Approach 1:
The invention transitions from applying masking only on the inner side (one dimension) to forming geometric structures on both the inner and outer sides of the translucent carrier element (two dimensions). This dual-sided geometric structure formation enables precise edge definition and high image sharpness while maintaining manufacturing feasibility through integrated molding processes.
2Manufacturing precision
If geometric structures are formed on both sides of the translucent carrier element with high precision, then edge sharpness and optical effects are improved, but the manufacturing complexity increases
Solution Approach 1:
The invention combines the formation of geometric structures on both the inner and outer sides into a single integrated molding process. By using a multi-cavity mold or co-molding technique, the complex dual-sided geometric structures are formed simultaneously in one manufacturing step, achieving high edge sharpness without proportionally increasing manufacturing complexity.
3Illumination intensity
If the geometric structures on inner and outer sides are precisely aligned with spatial deviation less than 20 micrometers, then the optical effects and halo effect are enhanced, but the manufacturing precision requirements become more stringent
Solution Approach 1:
The invention incorporates the geometric structure patterns directly into the mold cavity design before the molding process begins. The mold itself pre-defines the precise spatial alignment and contours of the geometric structures on both sides, ensuring that when the translucent carrier element is formed, the structures are automatically aligned with the required precision of less than 20 micrometers, thereby achieving enhanced optical effects without requiring post-manufacturing alignment adjustments.
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 high edge sharpness and attractive optical effects such as halos in backlit states, improving the visual appeal of display elements with precise manufacturing techniques ensuring spatial deviations of less than 20 micrometers between inner and outer structures.
Implementation Method 1
geometric structures that are realized as protrusions and/or depressions on both of the inner side and the outer side of the translucent carrier element
Implementation Method 2
the lighted image generated by the pictogram mask is visible through the main body and the outer cover layer
Data Source
Figure 1a~1c
Figure 2
Figure 2a
AI summary
A display panel (31) is proposed that comprises a translucent carrier element (10) that has an inner side (1), an outer side (2), and a display area (3). At least one display element (21-28) is arranged within the display area (3), the display element (21-28) being formed by geometric structures (5, 6; 60) realized as protrusions (60) and/or depressions (5, 6) on both of the inner side (1) and the outer side (2) of the translucent carrier element (10). The display panel can be used in an information display that in particular comprises at least a light emitting element for backlighting the display element. The information display can be used in an appliance such as an electric toothbrush, wherein the protrusions (60) and/or depressions (5, 6) integrally formed with the translucent carrier element (10).