Display Color Temperature Control Using Ambient IR and Camera Sensing
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Solution Overview
Problem
Electronic devices struggle to accurately adjust display color temperature to match ambient surroundings, leading to reduced visibility and user fatigue, especially when lacking a sensor to measure color temperature.
Innovation Solution
Incorporating an illuminance sensor, infrared ray sensor, and camera module to measure ambient color temperature and adjust display color temperature accordingly, optimizing power consumption through adaptive sampling rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an illuminance sensor is used to sense ambient light, then the brightness can be adjusted, but the color temperature cannot be accurately measured
Solution Approach 1:
The patent combines multiple sensing functions into a unified system: the illuminance sensor measures ambient brightness, the infrared sensor detects thermal radiation, and the camera captures visual information. By merging these sensors and processing their data together, the system overcomes the limitation of the illuminance sensor alone and achieves accurate color temperature measurement through multi-source data fusion.
Solution Approach 2:
The patent makes the sensor system multi-functional by enabling it to perform both brightness sensing (original function of illuminance sensor) and color temperature sensing (new function achieved through combining illuminance sensor data with infrared sensor and camera data). This universal approach allows a single integrated system to handle multiple environmental parameters.
2Measurement precision
If the camera module is continuously driven to obtain color temperature values, then accurate color temperature measurement is achieved, but power consumption increases
Solution Approach 1:
Instead of continuous operation, the patent implements periodic sampling where the camera module is activated only at specific intervals or when changes in ambient conditions are detected. The system uses the illuminance sensor and infrared sensor to monitor environmental changes continuously, then triggers the camera module only when necessary to update color temperature measurements, reducing overall power consumption while maintaining measurement accuracy.
Solution Approach 2:
The system performs preliminary detection using the low-power illuminance sensor and infrared sensor to identify when ambient light conditions change. Only when these preliminary sensors detect significant changes does the system activate the camera module for detailed color temperature measurement, avoiding unnecessary camera operations and associated power consumption.
3Measurement precision
If multiple sensors and camera modules are used to measure color temperature, then measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent divides the sensing system into distinct functional modules: the illuminance sensor for brightness detection, the infrared sensor for thermal radiation detection, and the camera module for visual capture. Each module has a specific function and processes data independently before integration. This segmentation allows for easier manufacturing, testing, and maintenance while achieving high measurement accuracy through coordinated operation of specialized components.
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
Enhances display visibility and user comfort by accurately matching display color temperature to ambient conditions while reducing power consumption.
Implementation Method 1
multiple sensor circuits configured to sense an illuminance value and an infrared ray (IR) value
Implementation Method 2
multiple sensor circuits configured to sense an illuminance value and an infrared ray (IR) value
Implementation Method 3
multiple camera circuits configured to sense a color temperature
Data Source
AI summary
An electronic device is provided. The electronic device includes a display, a display driver configured to drive the display, multiple sensor circuits configured to sense an illuminance value and an infrared ray (IR) value, multiple camera circuits configured to sense a color temperature, memory comprising one or more storage media, storing instructions, and one or more processors communicatively coupled to the display driver, the multiple sensor circuits, and the multiple camera circuits, and the memory, wherein the instructions, when executed by the one or more processors individually or collectively, cause the electronic device to operate at least one of the multiple sensor circuits to obtain an illuminance value around the electronic device, operate at least one of the multiple sensor circuits to obtain an IR value around the electronic device, determine whether a color temperature around the electronic device is changed, based on the illuminance value and the IR value around the electronic device, in case of determining that the color temperature around the electronic device is changed, drive at least one of the multiple camera circuits to obtain a color temperature value around the electronic device, and control an operation of the display driver to change a color temperature of the display, based on the color temperature value around the electronic device.