Biometric Sensing Region Reflectivity Differentiation
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Solution Overview
Problem
Users face difficulty in distinguishing the biometric sensing region from the non-sensing region on electronic devices, especially in bright conditions, due to the integration of sensors within the display area.
Innovation Solution
The electronic device incorporates a substrate with distinct regions, a biometric sensing module, a display medium layer, and a touch sensing layer, where the reflectivity of the biometric sensing region is intentionally different from that of the non-sensing region to facilitate user differentiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If sensors are integrated into the display region to increase display-to-body ratio, then the device achieves higher compactness and thinner profile, but users cannot easily distinguish the sensing region from non-sensing region, especially in bright conditions
Solution Approach 1:
The patent applies local quality by creating a visual indicator layer with different optical properties (transparency, color, or pattern) specifically in the sensing region compared to non-sensing regions. This allows the sensing area to be visually distinguished through the display medium while maintaining the integrated design, resolving the contradiction between compact integration and user distinguishability.
Solution Approach 2:
The patent utilizes color changes or optical property variations in the visual indicator layer to differentiate the sensing region. By implementing regions with different transparency, coloration, or patterns that become visible when the display is off or in certain states, users can easily identify the sensing area without compromising the integrated display design.
2Length of moving object
If the electronic device is made thinner and more compact, then the device achieves better portability and modern design, but the biometric sensing module requires specific spatial arrangement that complicates the structure
Solution Approach 1:
The patent implements nesting by placing the biometric sensing module between the display medium layer and the touch sensing layer, creating a stacked, multi-layered structure. This nested arrangement allows multiple functional modules to occupy the same vertical space, reducing overall device thickness while maintaining all necessary components and their spatial relationships.
Solution Approach 2:
The patent transitions from a planar arrangement to a three-dimensional stacked configuration, organizing sensors and display elements along the vertical dimension (thickness direction). This dimensional change allows multiple functional layers to coexist in a compact volume, achieving thinness without sacrificing functional complexity.
Data Source
AI summary
An electronic device is disclosed, which includes: a substrate including a first region and a second region; a biometric sensing module disposed corresponding to the first region; a display medium layer disposed on the substrate; a touch sensing layer disposed on the display medium layer, wherein the touch sensing layer includes a first touch sensing region and a second touch sensing region, the first touch sensing region corresponds to the second region, and the second touch sensing region corresponds to the first region; wherein a reflectivity of the first touch sensing region is different from a reflectivity of the second touch sensing region.