Embedded Infrared Emitters and Photosensitive Elements for 3D Recognition
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Solution Overview
Problem
Existing display devices require a non-display area to accommodate infrared emitters and cameras for 3D feature recognition, limiting the expansion of the display area.
Innovation Solution
Incorporating infrared emitting elements and photosensitive elements within the display area of a screen, allowing for embedded 3D feature recognition without the need for additional non-display space, enabling increased screen-to-body ratio and full-screen functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If infrared emitters and cameras are disposed outside the display area for 3D feature recognition, then 3D recognition function is achieved, but the display area is limited and cannot be further increased
Solution Approach 1:
The patent merges the 3D recognition components (infrared emitters and photosensitive elements) with the display screen by embedding them within the display area. This integration allows the same physical space to serve dual purposes: displaying visual information and performing 3D feature recognition, thereby eliminating the need for separate non-display areas while maintaining both functions
Solution Approach 2:
The display screen is designed to perform multiple functions simultaneously. The display area not only displays images but also houses infrared emitting elements for illumination and photosensitive elements for capturing reflected light, enabling 3D feature recognition. This multi-functionality resolves the contradiction by making the display area serve both display and sensing purposes
2Reliability
If non-display area is reserved to dispose infrared emitters and cameras, then 3D feature recognition is enabled, but screen-to-body ratio is reduced
Solution Approach 1:
The patent combines the 3D recognition system with the display screen structure by embedding infrared emitters and photosensitive elements within the display area boundaries. This merging eliminates the need for additional non-display areas, thereby maximizing the screen-to-body ratio while maintaining 3D recognition functionality
Solution Approach 2:
The patent transitions from a traditional planar arrangement where sensing components are placed outside the display area to an integrated arrangement where components are embedded within the display area's thickness dimension. This dimensional reorganization allows 3D recognition components to coexist with the display area without reducing the visible screen area
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
Enables effective 3D feature recognition, such as face recognition, without reducing the display area, thereby enhancing user experience and device design by integrating recognition capabilities directly into the display.
Implementation Method 1
a plurality of infrared emitting elements embedded in a first area of the display area, and configured to emit infrared light
Implementation Method 2
a plurality of photosensitive elements embedded in a second area of the display area, and configured to receive target light spots reflected from the target object and convert the target light spots into photo-electrical signals
Data Source
AI summary
A display screen, an electronic device and a method for 3D feature recognition are provided. The display screen includes a plurality of display units distributed in an array across a display area of the display screen; a plurality of infrared emitting elements embedded in a first area of the display area of the display screen; and a plurality of photosensitive elements embedded in a second area of the display area of the display screen. The plurality of photosensitive elements can be combined into an image sensor. The plurality of infrared emitting elements is configured to emit infrared light for illuminating a target object in front of the display screen so as to form a plurality of light spots on the target object. The plurality of photosensitive elements is configured to receive target light spots reflected from the target object and convert the target light spots into photo-electrical signals for generating a target image of the target object.