Display-Integrated Gaze Sensing With Light-Receiving Pixels
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Solution Overview
Problem
Existing electronic devices that rely on infrared cameras and optical instruments for gaze detection are bulky and consume high power, making them difficult to miniaturize.
Innovation Solution
An electronic device with a display composed of micro LEDs, incorporating light-receiving pixels between regular pixels to reflect and detect user gaze without separate infrared cameras, allowing gaze detection using light-receiving pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate infrared camera and optical instrument are equipped for gaze detection, then gaze detection function is achieved, but device size increases and power consumption increases
Solution Approach 1:
The patent merges the gaze detection function into the existing display device by integrating light-receiving pixels with the display pixels. The display device simultaneously performs display and gaze detection functions without requiring separate infrared cameras and optical instruments, thus reducing device complexity while maintaining reliability
Solution Approach 2:
The display device is designed to perform multiple functions: it displays images using display pixels and detects user gaze using light-receiving pixels. This multi-functionality eliminates the need for separate dedicated gaze detection hardware, resolving the contradiction between functional reliability and device complexity
2Reliability
If separate infrared camera and optical instrument are equipped for gaze detection, then gaze detection function is achieved, but power consumption increases
Solution Approach 1:
By combining the gaze detection function with the display device, the patent eliminates the need for separate power-consuming components (infrared camera and optical instrument). The display device uses its existing power supply to simultaneously drive display pixels and light-receiving pixels, thereby reducing overall power consumption while maintaining gaze detection reliability
Solution Approach 2:
The display device performs both display and gaze detection functions using a unified power supply system. This multi-functionality approach avoids the dual power consumption pattern of separate components, resolving the contradiction between maintaining gaze detection function and reducing power consumption
3Reliability
If separate infrared camera and optical instrument are equipped for gaze detection, then gaze detection function is achieved, but device miniaturization becomes difficult
Solution Approach 1:
The patent integrates the gaze detection function into the display device's pixel structure, merging two functions (display and detection) into a single compact unit. This eliminates the need for separate infrared camera and optical instrument components, thereby enabling device miniaturization while maintaining reliable gaze detection functionality
Solution Approach 2:
The display device is designed as a universal component that simultaneously provides display and gaze detection capabilities. This multi-functionality approach consolidates multiple components into a single device, directly addressing the contradiction between functional reliability and device miniaturization
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 miniaturization and reduces power consumption by eliminating the need for separate infrared cameras and optical instruments.
Implementation Method 1
light output from the display composed of micro LEDs may be reflected from the user's eyes and received by one or more light-receiving pixels constituting the display
Data Source
AI summary
An electronic device is provided. The electronic device includes a plurality of pixels, light-receiving pixels disposed between the plurality of pixels, a display composed of the plurality of pixels and the light-receiving pixels, and a processor operatively coupled to the display. The processor receives light reflected from each of the user's left and right eyes through the one or more light-receiving pixels constituting the display, confirms the gaze direction of each of the left and right eyes on the basis of the light received through the one or more light-receiving pixels, and outputs an image based on the confirmed gaze direction.