Micro-Photoelectric Display Layout for Accurate Under-Screen Sensing
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Solution Overview
Problem
Existing electronic devices for biometric identification and physiological parameter measurement lack high accuracy and efficient detection methods, particularly in integrating micro-photoelectric elements for wide-ranging applications.
Innovation Solution
The electronic device comprises a first module with a pixel substrate and a counter substrate, and a second module with micro-photoelectric units and a protection layer, where the micro-photoelectric units are aligned with shielding units of the first module, enabling high accuracy detection by unshielding pixels and using sensor and light-emitting elements for sensing and emitting light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If micro-photoelectric units are integrated into the electronic device for biometric identification and physiological parameter measurement, then detection capability and functionality are improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent combines multiple photoelectric elements (light-emitting elements and sensor elements) into integrated micro-photoelectric units, merging lighting and sensing functions into a single modular component. This integration approach enables comprehensive detection capabilities while managing device complexity through standardized unit design that can be systematically arranged in the device structure.
2Measurement precision
If micro-photoelectric units are positioned to unshield pixels in the stacking direction, then detection accuracy is improved, but interference with display function may occur
Solution Approach 1:
The patent applies local quality by selectively positioning micro-photoelectric units to unshield only specific pixels in the stacking direction where detection is needed, while other pixels remain shielded for display purposes. This localized approach allows detection accuracy to be improved in specific regions without causing interference with the overall display function, as each pixel's shielding status is optimized for its specific function.
3Productivity
If sensor elements are positioned within the sensible range of light-emitting elements, then detection efficiency is improved, but device structure complexity increases
Solution Approach 1:
The patent implements a nested structure where sensor elements are positioned within the sensible range of light-emitting elements, creating a concentric or layered arrangement. The light-emitting elements are positioned at certain distances from the pixel substrate, and sensor elements are arranged to receive light within their sensible range, forming a nested detection configuration that improves detection efficiency while maintaining structured organization.
4Area of stationary object
If multiple micro-photoelectric units are arranged in the second module, then detection coverage and functionality are improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent divides the detection system into multiple discrete micro-photoelectric units arranged in a systematic pattern in the second module. Each unit is independently positioned and can be manufactured and assembled separately, which segments the complex manufacturing process into manageable steps. This segmentation approach allows for systematic arrangement that improves detection coverage while reducing overall manufacturing precision requirements compared to a monolithic design.
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 provides a high accuracy detection rate by aligning micro-photoelectric units with shielding units, allowing them to fill gaps between pixels without interfering with display or detection functions, and improving detection efficiency by positioning sensor elements within the sensible range of light-emitting elements.
Implementation Method 1
Each of the micro-photoelectric units comprises a micro-photoelectric element, and at least one of the micro-photoelectric elements is a sensor element
Implementation Method 2
Each of the micro-photoelectric units comprises a micro-photoelectric element, and at least one of the micro-photoelectric elements is a sensor element
Data Source
AI summary
An electronic device may include: a display panel comprising a pixel flexible substrate, a driving circuit, a display medium formed from an organic light-emitting material, and a plurality of shielding units; and a plurality of micro photoelectric units adjacent to a protection layer and away from the display panel. The plurality of micro-photoelectric units may comprise respective micro-photoelectric elements, and at least one of the micro-photoelectric elements may be, or may include, a sensor element. The protection layer may serve to protect the plurality of micro-photoelectric units while being located at one side of the plurality of micro-photoelectric units. Each of the plurality of micro photoelectric units may be configured to emit light toward an object, and to receive the light reflected, scattered, refracted, or diffracted by, or penetrating through, the object, or receive a signal generated from the light after being reflected, scattered, refracted, or diffracted by, or penetrating through, the object.