Brightness Control for Display Units Using Person and Ambient Sensors
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Solution Overview
Problem
Existing information processing apparatuses face challenges in properly controlling screen brightness due to discrepancies between ambient brightness control and person or face orientation detection processes.
Innovation Solution
An information processing apparatus equipped with a processor, display unit, first sensor for detecting persons or face orientations, and a second sensor for ambient brightness detection, which performs specific brightness changing and control processing to synchronize screen brightness adjustments based on user presence and ambient conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate processes control screen brightness based on ambient brightness and person detection independently, then each process can optimize its own brightness control logic, but the screen brightness may not be controlled properly due to discrepancies between the two processes
Solution Approach 1:
The patent merges the ambient brightness control process and the person detection control process into a unified brightness control system. The processor integrates both detection results and determines screen brightness based on combined information, ensuring consistent and proper brightness control without discrepancies between separate processes.
2Loss of energy
If the system controls screen brightness based on person detection and face orientation, then power consumption can be reduced when no one is present, but the brightness control may conflict with ambient brightness adjustment needs
Solution Approach 1:
The system dynamically adjusts screen brightness by considering both person detection results and ambient brightness conditions. When no person is detected or face orientation is inappropriate, the system reduces brightness to save power. When person is detected with proper orientation, the system allows ambient brightness control to operate normally, creating a dynamic and coordinated brightness control strategy.
Data Source
AI summary
An information processing apparatus includes: a memory; a processor; a display unit which displays a display image based on the processing executed by the processor; a first sensor for detecting a person present in a predetermined detection range or an orientation of a face of the person; and a second sensor which detects an ambient brightness, wherein the processor performs first brightness changing processing to change the screen brightness of the display unit from a current brightness value based on the detection result using the first sensor, second brightness changing processing to change the screen brightness from the current brightness value based on the detection result using the second sensor, and brightness changing control processing to control whether or not to change the screen brightness by the second brightness changing processing based on the detection result using the first sensor.