Illumination Sensor Embedded in Display for Precise Brightness Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices require a separate hole for embedding illumination sensors, limiting their design and manufacturing processes, and struggle to accurately distinguish between external and internal light sources for precise brightness control.
Innovation Solution
An electronic device design that embeds an illumination sensor between the display and the housing or within the display, allowing it to detect external light intensity and adjust brightness based on both image data and illumination-related data without the need for a separate hole, enabling more precise automated brightness control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a separate hole is created in the display for embedding the illumination sensor, then the illumination sensor can be embedded to detect ambient light, but the design and manufacturing processes are limited and complicated
Solution Approach 1:
The illumination sensor is integrated directly into the display structure, merging the sensor embedding process with the display manufacturing process. This eliminates the need for separate hole creation and reduces manufacturing steps while maintaining illumination detection capability
Solution Approach 2:
The display structure is designed to serve multiple functions: displaying images and housing the illumination sensor. The display panel itself becomes a universal component that combines both display and sensor embedding functions, simplifying the overall device architecture
2Ease of manufacture
If the illumination sensor is embedded in the display, then no separate hole is needed, but the sensor must distinguish between external light and internal display light for accurate measurement
Solution Approach 1:
The system periodically alternates between displaying test patterns and measuring ambient light. By controlling the display to show specific patterns (such as black screens or known luminance values) and timing the illumination sensor readings accordingly, the system can distinguish external light from internal display light through temporal separation of measurement and display functions
Solution Approach 2:
The system uses feedback from the display controller to compensate for internal light interference. By monitoring what the display is currently showing and using this information to adjust or subtract the internal light component from the sensor reading, the system achieves accurate external light measurement despite the sensor's proximity to the display
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 allows for more accurate illumination sensing and easier, more precise brightness control, especially in varying light conditions, without the design and manufacturing limitations of traditional methods.
Implementation Method 1
an illumination sensor capable of recognizing light intensity may be exposed outside the electronic device or embedded in an upper portion of the display
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing including a first surface and a second surface facing in an opposite direction of the first surface, a display exposed through the first surface of the housing and including a plurality of pixels, at least one illumination sensor disposed between the display and the second surface of the housing or disposed in the display, at least one processor electrically connected with the display and the at least one illumination sensor, and a memory electrically connected with the at least one processor, wherein the memory may store instructions configured to, upon execution by the at least one processor, cause the at least one processor to control to transmit to the display image data to be output through the plurality of pixels of the display, receive illumination-related data obtained by detecting light outside the first surface of the housing using the at least one illumination sensor, and change a brightness of at least a portion of the display based on at least a portion of the transmitted image data and the illumination-related data.