Under-screen Camera Display Area Adjustment for Light Noise Reduction
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Solution Overview
Problem
Existing mobile devices with under-screen cameras face challenges in adjusting the screen area around the camera to optimize image capture, particularly due to light noise from screen pixels and the need to maintain a high screen-to-body ratio.
Innovation Solution
An electronic device and method that automatically adjust the size of an area with no display content around the camera based on screen brightness when a user takes a picture, using a processor to generate and manage display areas and layers to reduce light noise and enhance imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the camera is placed under the display screen to increase screen-to-body ratio, then the screen area increases, but light noise from screen pixels degrades image quality
Solution Approach 1:
The display screen is segmented into a first display area and a second display area. The first display area corresponds to the camera lens position and is configured to be transparent or have reduced brightness, allowing light to pass through to the camera. The second display area displays normal content. This segmentation allows the screen to simultaneously provide display functionality and allow camera operation without light noise interference.
Solution Approach 2:
Different regions of the display screen are assigned different optical properties. The first display area under the camera lens is made transparent or with reduced brightness emission, while the second display area maintains normal display characteristics. This local differentiation enables the camera to capture images without light noise from the screen while preserving the display function in other areas.
2Object-affected harmful factors
If an area with no display content is created around the camera to reduce light noise, then image quality improves, but the screen-to-body ratio decreases
Solution Approach 1:
The display area is divided into a first display area (transparent/reduced brightness region around the camera) and a second display area (normal display region). This segmentation eliminates the need for a large non-display area while still providing light noise reduction, as only the minimal necessary region around the lens is affected.
Solution Approach 2:
The solution transitions from a two-dimensional view of the screen as a flat display surface to considering the third dimension of light transmission. By making the first display area transparent to light, the screen effectively becomes non-opaque in that region, allowing the camera to receive light without requiring a physical gap or non-display area.
3Object-affected harmful factors
If the area with no display content is dynamically adjusted based on screen brightness, then light noise reduction is optimized, but system complexity increases
Solution Approach 1:
The boundary between the first display area and the second display area is dynamically adjustable based on screen brightness levels. When the screen brightness increases, the system automatically expands the first display area (transparent region) to compensate for increased light noise, and vice versa. This dynamic adjustment optimizes light noise reduction without requiring manual intervention.
Solution Approach 2:
The system implements a feedback mechanism where the screen brightness level is continuously monitored, and the boundary of the first display area is automatically adjusted in response. This closed-loop control ensures that light noise from the screen does not interfere with camera imaging while maintaining the simplest possible system configuration.
Data Source
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AI summary
Disclosed is an electronic device, the electronic device comprising a display screen, a camera, a memory and a processor; the memory stores program instructions: the processor is used for running the program instructions so as to execute the following steps: according to the screen brightness of a display screen, generating an area without display content within a preview area: and synthesizing a display layer picture that corresponds to the area without display content and a preview image of a captured object that has been collected by a camera into a display image of the captured object. Also disclosed is a method for an under-screen camera performing photographing and display, and a computer-readable storage medium.