Optical Sensor Ambient Light Proximity Detection Edge-to-Edge Display
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Solution Overview
Problem
Conventional electronic devices require dedicated ambient light sensors and proximity sensors, which increase costs and limit the design flexibility of display screens, as they cannot extend edge-to-edge without these components.
Innovation Solution
Incorporating an optical sensor that can perform both ambient light detection and proximity sensing by using the display screen itself, eliminating the need for separate sensors and allowing the display to extend edge-to-edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dedicated ambient light sensors and proximity sensors are incorporated into the electronic device, then the device can accurately detect ambient light and proximity, but the device cost increases and display design flexibility is limited
Solution Approach 1:
The optical sensor is designed to perform multiple functions: it serves as both an ambient light sensor and a proximity sensor. By making the sensor universal, the patent eliminates the need for separate dedicated sensors, thereby reducing device complexity and cost while maintaining measurement precision for both ambient light and proximity detection
Solution Approach 2:
The patent combines the ambient light sensing function and proximity sensing function into a single optical sensor component. This merging of functions reduces the total number of sensors required in the device, addressing the technical contradiction between measurement precision and device complexity
2Measurement precision
If dedicated ambient light sensors and proximity sensors are incorporated into the electronic device, then the device can accurately detect ambient light and proximity, but the display cannot extend edge-to-edge
Solution Approach 1:
By making the optical sensor universal (serving both ambient light and proximity detection), the patent reduces the number of sensors needed, which in turn allows the display to extend edge-to-edge without being blocked by multiple separate sensor components
Solution Approach 2:
The patent merges ambient light sensing and proximity sensing into a single optical sensor, which enables the display to occupy the full edge-to-edge area without requiring separate dedicated sensors that would limit display area
3Reliability
If multiple dedicated sensors are used for ambient light and proximity detection, then detection functions are specialized, but the device cost increases
Solution Approach 1:
The optical sensor is designed with universal functionality to perform both ambient light detection and proximity detection. This multi-functional approach maintains reliable detection for both functions while reducing the total number of sensors and associated costs
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 approach reduces the device's cost and enables a more flexible design by utilizing the optical sensor for ambient light and proximity detection, integrating these functions into the display screen without the need for additional sensors.
Implementation Method 1
causing the optical sensor to detect an amount of illumination in the optical sensing region
Data Source
AI summary
A method for determining an amount of ambient light illumination is disclosed. The method includes: estimating a contribution per color component in an optical sensing region of an input frame to be displayed on a display device, wherein the optical sensing region corresponds to a location of an optical sensor in the display device, wherein the input frame comprises digital information for each color component for each pixel of the input frame; causing the optical sensor to detect an amount of illumination in the optical sensing region based on illuminating the display device with a representation of the input frame; and determining the amount of ambient light illumination based on the estimated contribution per color component in the optical sensing region of the input frame and the amount of illumination in the optical sensing region detected by the optical sensor.