Ambient Light Sensor Accuracy in Full-Screen Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In mobile terminals with full screen designs, the screen light emitted by liquid crystal displays can interfere with the accuracy of ambient light sensors, affecting their ability to collect ambient light effectively.
Innovation Solution
By determining a target image frame adjacent to the collection time point and decreasing the display brightness of pixel points in a specific area of the target image frame to a target value, the influence of display light on the ambient light sensor is minimized, allowing for more accurate ambient light collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the ambient light sensor is placed on the display screen in a full screen design, then the screen ratio is increased, but the screen light emitted by the liquid crystal display interferes with the accuracy of the ambient light sensor
Solution Approach 1:
The method adjusts the display brightness of pixel points in the second area before the ambient light sensor collects ambient light. By preliminarily reducing the brightness of pixels surrounding the sensor hole, the screen light interference is minimized before the measurement occurs, ensuring accurate ambient light detection while maintaining the full screen design
Solution Approach 2:
The method applies different brightness adjustment strategies to different areas of the display screen. Specifically, pixel points in the second area (surrounding the sensor hole) have their brightness reduced, while other areas maintain normal display brightness. This local differentiation allows the ambient light sensor to function accurately without significantly impacting the overall display quality
2Measurement precision
If the display brightness of pixel points in the second area is reduced to minimize screen light interference, then the ambient light collection accuracy is improved, but the display effect in that area may be affected
Solution Approach 1:
The method periodically adjusts the display brightness of pixel points in the second area based on timing information. The brightness is reduced only during specific time periods when the ambient light sensor needs to collect ambient light, and restored to normal levels during other periods. This periodic adjustment minimizes the impact on display effect while ensuring accurate ambient light measurement when needed
Solution Approach 2:
The method dynamically adjusts the display brightness of pixel points in the second area based on real-time timing information and display content. The brightness adjustment is not static but changes dynamically according to whether the sensor is actively collecting data and what is being displayed, thereby optimizing both measurement accuracy and display quality adaptively
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 method improves the accuracy of ambient light collection while maintaining a good display effect by dynamically adjusting the display brightness, reducing the interference from screen illumination.
Implementation Method 1
An ambient light sensor is provided on a typical mobile terminal (such as a smart phone or a tablet) to collect the light intensity in the environment
Implementation Method 2
the screen light emitted by the liquid crystal display around the hole in the display screen may affect the collection accuracy of the ambient light sensor
Data Source
Figure 1~2
Figure 3~5
Figure 6
AI summary
The present invention relates to a method of collecting ambient light, a terminal, a storage medium and a mobile phone, and relates to the field of liquid crystal display. The ambient light sensor is disposed in a first area in a display screen of the terminal. The method includes: determining (202) a target image frame adjacent to a collection time point, wherein the collection time point is a time point at which the ambient light sensor collects ambient light; decreasing (204) display brightness of pixel points in a second area of the target image frame to a target value, wherein the first area is a sub-area of the second area; and displaying the target image frame according to the target value, and controlling (206) the ambient light sensor to collect the ambient light at the collection time point.