Digital Pen Light Sensor for Display Brightness Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Many information handling devices lack effective light sensors, limiting their ability to adjust display settings in response to varying ambient light conditions, leading to suboptimal display brightness and color temperature, which can cause eye strain and disrupt others in low-light environments.
Innovation Solution
A digital pen equipped with a light sensor at its blunt end is used to measure ambient light, allowing the processor to adjust the display's brightness and color temperature of the information handling device, even in devices without built-in light sensors, by determining its docked position and performing adjustments accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a light sensor is integrated into the information handling device, then ambient light measurement capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The digital pen serves as an intermediary device that contains the light sensor and communicates measurement data to the information handling device. This allows the IH device to gain light sensing capabilities without integrating a sensor directly into its structure, thereby improving measurement capability while avoiding increased device complexity.
2Measurement precision
If a light sensor is integrated into the information handling device, then ambient light measurement capability is improved, but manufacturing cost increases
Solution Approach 1:
By using the digital pen as an intermediary with an integrated light sensor, the system achieves ambient light measurement capability without requiring costly sensor integration into the information handling device itself. The cost of the light sensor is effectively transferred to the accessory (pen) rather than the main device.
3Illumination intensity
If display brightness is increased in low-light environments, then visibility is improved, but eye strain increases
Solution Approach 1:
The system uses the light sensor in the digital pen to continuously monitor ambient light conditions and provides feedback to the information handling device. This feedback enables dynamic adjustment of display brightness to match environmental lighting levels, ensuring optimal visibility while preventing excessive brightness that would cause eye strain in low-light conditions.
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 solution enhances the functionality of information handling devices by enabling precise adjustments to display settings based on ambient light, reducing eye strain and improving user experience in varying lighting conditions, while also providing a cost-effective method for retrofitting light-sensing capabilities.
Implementation Method 1
A digital pen equipped with a light sensor at its blunt end is used to measure ambient light
Data Source
AI summary
Apparatuses, methods, systems, and program products are disclosed for measuring light using a digital pen. An apparatus includes a processor and a memory that stores code executable by the processor. In one embodiment, the processor determines whether a digital pen that is configured to communicate with an information handling device is in a docked position. The processor receives a light measurement sensed by the digital pen and performs an adjustment to an output parameter of a display for the information handling device in response to receiving the light measurement. A method, system, and computer program product may perform the functions of the apparatus.