Digitizer Blocking Layer Conceals Metal Pattern
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Solution Overview
Problem
Display apparatuses with integrated digitizers face issues where the pattern layer of the digitizer can be viewed, leading to inaccurate image display and potential distortion due to the digitizer's pattern layer influencing the displayed image.
Innovation Solution
A digitizer design that includes a base layer with a metal pattern and a blocking layer, which is black, to conceal the pattern layer. The blocking layer is integral with the base layer and includes a base planarization layer between them, ensuring a flat and obscured surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a digitizer with a metal pattern layer is integrated into the display apparatus, then the digitizer can receive external signals, but the pattern layer becomes visible and distorts the displayed image
Solution Approach 1:
A blocking layer is introduced as an intermediary component between the metal pattern layer and the display surface. This blocking layer prevents light from interacting with the metal pattern, thereby eliminating the distortion and visibility issues while preserving the digitizer's signal reception capability through the use of transparent or translucent materials.
Solution Approach 2:
The blocking layer is designed with specific optical properties (transparent or translucent) that allow it to block the visual impact of the metal pattern while maintaining light transmission for display purposes. This color/optical property change enables the pattern layer to remain invisible during operation.
2Manufacturing precision
If the blocking layer is added to conceal the pattern layer, then image display accuracy improves, but the device structure becomes more complex
Solution Approach 1:
The blocking layer is integrated with the base layer to form a unified structure. This merging approach reduces the number of separate components and simplifies the overall manufacturing process while still achieving the goal of concealing the metal pattern layer effectively.
Solution Approach 2:
The blocking layer serves multiple functions simultaneously: it conceals the metal pattern layer, maintains the structural integrity of the digitizer, and allows light transmission for display purposes. This multi-functionality reduces the need for additional separate components.
3Adaptability or versatility
If the digitizer is made flexible to allow folding, then adaptability improves, but wrinkles and unevenness appear in the folded state
Solution Approach 1:
The digitizer structure is divided into multiple flexible layers including the base layer, blocking layer, and metal pattern layer. This segmentation allows each layer to flex independently, accommodating folding movements without creating wrinkles or unevenness in the overall structure.
Solution Approach 2:
The digitizer employs thin film structures that are inherently flexible and capable of withstanding repeated folding cycles. These thin films maintain surface flatness even in the folded state, preventing the formation of wrinkles while enabling the folding functionality.
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 effectively prevents the pattern layer of the digitizer from being viewed, ensuring a clear and accurate image display on the display apparatus, even when the apparatus is folded, thereby maintaining image quality and preventing wrinkles or unevenness in the folded state.
Implementation Method 1
a blocking layer disposed on the base layer... The blocking layer may be black... blocking external light reflection
Data Source
AI summary
A digitizer and a display apparatus including the same are provided. The digitizer includes a base layer in which a metal pattern is disposed, and a blocking layer disposed on the base layer.