Rear-Surface Optical Sensor Display Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices with optical sensors disposed on the rear surface of the display face issues with light distortion, leading to usability problems due to the overlap of the sensor with the display pixels, which affects the accurate positioning and operation of the sensors.
Innovation Solution
An electronic device with a processor and memory that identifies the position of the optical sensor on the display, allowing for the output of a visual object in the corresponding area or adjacent areas, thereby minimizing usability degradation and accurately displaying sensor operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an optical sensor including a light emitting unit is disposed in the rear surface of the display, then the display size can be increased, but light distortion occurs causing spots on the display which degrades usability
Solution Approach 1:
The patent converts the harmful light distortion effect into a useful visual indicator. The spots caused by light from the optical sensor are deliberately used to display visual objects (such as notification icons or status indicators) directly on the display area, transforming a defect into a functional feature that provides information to the user without requiring additional display real estate.
2Reliability
If sensors are disposed in the front surface of the display, then sensor functionality is maintained, but the display size is limited by spaces occupied by the sensors
Solution Approach 1:
The patent moves the optical sensor from the traditional front surface location to the rear surface of the display, utilizing the third dimension (depth) to resolve the spatial conflict. By placing the sensor on the back side, the display area is no longer constrained by sensor placement requirements, enabling larger display sizes while maintaining sensor functionality through the rear-surface positioning.
3Ease of manufacture
If the position of the optical sensor varies due to manufacturing variation, then accurate positioning of visual objects related to the sensor becomes difficult
Solution Approach 1:
The patent performs preliminary identification of the optical sensor's position during the manufacturing or initialization process. The system detects and stores the actual position coordinates of the sensor on the rear surface, then uses this pre-acquired position information to accurately place visual objects in corresponding locations on the display, compensating for manufacturing variations without requiring high-precision assembly.
4Ease of operation
If visual objects are displayed in the area corresponding to the light emitting unit, then usability is improved by showing sensor operations, but light distortion may interfere with the visual object display
Solution Approach 1:
The patent embraces the light distortion effect by using the illuminated spot area as the display location for visual objects. Rather than trying to eliminate or avoid the distortion, the system places icons, notifications, or status indicators directly within or adjacent to the light-emitting area, where the enhanced visibility from the light emission actually improves the prominence and user awareness of the displayed information.
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
The solution enables accurate identification and display of sensor operations, improving user experience by addressing light distortion and ensuring proper sensor functionality without compromising display quality.
Implementation Method 1
light from the light emitting unit of the optical sensor may reach some pixels of the display, to cause distortion in light emitted by the corresponding pixels
Data Source
AI summary
According to an embodiment, an electronic device may include: a display, an optical sensor disposed in a rear surface of the display and overlapping the display, the optical sensor including a light emitting unit including light emitting circuitry and a light receiving unit including light receiving circuitry, a processor operatively connected with the display and the optical sensor, and a memory operatively connected with the processor, wherein the memory may store instructions which, when executed, cause the processor to: obtain position information of a first area corresponding to the light emitting unit of the optical sensor in the display, and based on the light emitting unit of the optical sensor radiating light, output a visual object in the first area and/or an area adjacent to the first area on the display.