Retina Macula Gaze Tracking in Integrated Display Hardware
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Solution Overview
Problem
Existing electronic devices lack effective gaze tracking and eye blinking sensing capabilities, limiting their application in user interfaces and health management systems.
Innovation Solution
An electronic device equipped with a display apparatus, light-emitting and light-receiving devices, and image processing capabilities to detect the macula in the retina and calculate gaze direction, along with the ability to sense eye blinking through image processing and control mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If gaze tracking and eye blinking sensing capabilities are added to electronic devices, then user interaction and health monitoring functionalities are enhanced, but device complexity increases
Solution Approach 1:
The patent combines the light-emitting device and light-receiving device into a single display apparatus, integrating multiple functions (display and eye tracking) into one unified structure. This merging approach enables gaze tracking capability while avoiding the complexity of separate independent systems.
Solution Approach 2:
The display apparatus is designed to serve multiple purposes: it functions as both a display device and an eye tracking sensor. The light-emitting and light-receiving components are utilized for both display purposes and gaze detection, making the device multi-functional and reducing overall system complexity.
2Measurement precision
If image processing circuits are added to detect macula and calculate gaze position, then measurement precision of gaze tracking is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical or external imaging systems with integrated image processing circuits that directly process the optical signals within the display apparatus. This substitution achieves precise macula detection and gaze calculation through electronic processing rather than mechanical complexity.
Solution Approach 2:
The image processing circuits are nested within the display apparatus structure, with the light-receiving device capturing reflected light from the user's eye and the processing circuits immediately analyzing the signals. This nested arrangement enables precise measurement while maintaining a compact, integrated design.
3Adaptability or versatility
If light-emitting and light-receiving devices are integrated in the display apparatus, then gaze tracking functionality is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the light-emitting device and light-receiving device into a single integrated display apparatus, allowing them to be manufactured together as one unit rather than assembled from separate components. This approach simplifies the manufacturing process while enabling eye blinking sensing capability.
Solution Approach 2:
The integrated display apparatus serves multiple functions including display, gaze tracking, and eye blinking detection. By designing a single multi-functional component rather than separate specialized devices, the manufacturing process is streamlined while achieving versatile 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
Enables accurate gaze tracking and eye blinking detection, enhancing user interaction and health monitoring functionalities in electronic devices.
Implementation Method 1
a light-emitting device (10), which has a function of emitting light
Implementation Method 2
a light-receiving device (10PS), which has a function of capturing a retina
Data Source
AI summary
An electronic device capable of gaze tracking is provided. The electronic device includes a display apparatus, an image processing portion, and a control portion. The display apparatus includes a light-emitting device and a light-receiving device. The light-emitting device has a function of emitting light to a user's eye as a display image. The light-receiving device has a function of capturing a retina of the user's eye as a captured image. The image processing portion has a function of detecting a macula included in the retina from the captured image and a function of calculating position data of the macula. The control portion has a function of obtaining a position of a user's gaze destination on the display image from the position data of the macula.