Curved Display Sensor Placement for High Screen-to-Body Ratio
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Solution Overview
Problem
The increasing integration of biometric sensors and ambient-light sensors in smartphones leads to a large area occupation on the front panel, resulting in a small screen-to-body ratio and inefficient use of space, which complicates identity authentication and information safety.
Innovation Solution
The electronic device incorporates a display screen with a straight portion and curved extensions, a sensor component positioned opposite to the circuit board, and a light shield layer between the display screen and sensor component, allowing for proximity sensing without additional panel space usage, utilizing a signal emitter and receiver to emit and receive detecting signals through curved portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors are arranged on the front panel, then biometric identification and ambient light detection functions are achieved, but the screen-to-body ratio decreases and available space is reduced
Solution Approach 1:
The patent moves the sensor component from the traditional front panel (2D surface) to the side surface of the display screen, utilizing the third dimension (depth/side area) for sensor placement. This dimensional transition allows sensors to be positioned without occupying valuable front panel space, thereby maintaining a high screen-to-body ratio while preserving all sensor functions including proximity sensing, ambient light detection, and biometric identification.
2Reliability
If multiple sensors are integrated into the front panel, then identity authentication and information safety are enhanced, but the occupied area increases and screen-to-body ratio decreases
Solution Approach 1:
The patent combines multiple sensor functions (proximity sensor, ambient light sensor, fingerprint sensor, face recognition camera) into a single integrated sensor component located on the side surface. This merging approach consolidates what would traditionally require multiple separate components across the front panel into one unified module, reducing overall complexity while maintaining comprehensive security and authentication capabilities.
3Difficulty of detecting and measuring
If sensors are placed on the front panel, then detection functions are achieved, but the display area is reduced
Solution Approach 1:
The patent positions the proximity sensor and other detection sensors on the side surface of the display screen rather than on the front display area. This spatial relocation to a different dimension (side vs. front surface) enables full proximity detection capability while preserving 100% of the front display area, as the sensors operate from the lateral edge without obscuring any pixels or display content.
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 configuration enhances the accuracy of display control and reduces hardware costs by optimizing space usage on the front panel, improving the screen-to-body ratio and simplifying the manufacturing process while maintaining effective identity authentication and information safety.
Implementation Method 1
The signal emitter is configured to emit a detecting signal to outside through one of the two curved portions and the signal receiver is configured to receive a reflected signal from the outside through the other one of the two portions. The detecting signal is reflected into the reflected signal when touching an external object.
Data Source
AI summary
An electronic device is provided. The electronic device includes a display screen, a sensor component and a light shield layer. The display screen has a straight portion and a curved portion extending from a side of the straight portion. The sensor component is opposite to the display screen and has a position corresponding to the curved portion of the display screen. The light shield layer is arranged at a side of the display screen facing the sensor component.