Display Sensor Region Layout for Accurate Forward Light Sensing
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Solution Overview
Problem
In electronic devices with bezel-less displays, light sensors positioned beneath the display face forward, leading to distorted light information acquisition due to the display's influence, affecting image correction.
Innovation Solution
The display is divided into a display region and a sensor region, with a light-emitting/light-receiving layer and filter layer separating them, allowing accurate light information acquisition through aligned light-emitting diodes and photodiodes, and a processor processes this information for image correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate module structure is used for the optical sensor, then the sensor can be disposed of separately, but the sensor is exposed to external shocks and vibrations
Solution Approach 1:
The optical sensor is integrated directly into the display module structure, merging the sensor function with the display assembly. This integration protects the sensor from external shocks and vibrations while maintaining the ability to dispose of the sensor by disposing of the entire display module.
Solution Approach 2:
The optical sensor is embedded within the display module structure, with the sensor positioned inside the display assembly. This nesting arrangement protects the sensor from external harmful factors while allowing the sensor to be disposed of along with the display module.
2Object-affected harmful factors
If the optical sensor is integrated into the display, then the sensor is protected from external shocks, but the display structure becomes more complex
Solution Approach 1:
The display module serves multiple functions: it displays visual information and houses the optical sensor for sensing operations. This multi-functionality approach integrates the sensor into the existing display structure without requiring a completely separate protective housing, thus minimizing structural complexity while providing protection.
Solution Approach 2:
The display module structure itself acts as a protective shell for the optical sensor. The existing display assembly provides mechanical protection through its inherent structure, eliminating the need for additional protective housings while maintaining sensor protection from external shocks.
3Ease of manufacture
If the optical sensor is disposed of separately, then manufacturing is easier, but the sensor cannot be disposed of with the display
Solution Approach 1:
The optical sensor is integrated into the display module, merging the sensor with the display assembly. This allows the sensor to be disposed of together with the display module, providing disposal flexibility while maintaining manufacturing ease through integrated production processes.
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
Enables accurate light information acquisition and effective image correction using light sensors on bezel-less displays, ensuring precise image processing and display functions.
Implementation Method 1
a position at the touch is determined using a touch sensor
Data Source
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Figure 3A
AI summary
An electronic device in various embodiments may include: a front cover forming a front surface of the electronic device; a rear cover forming a rear surface opposite to the front surface; a display placed between the front cover and the rear cover and visually exposed through the front cover; a first camera disposed on the front surface; and a processor operatively connected to the first camera and the display. The display may be divided into a display region and a sensor region when facing the front surface. The display may include: a light-emitting/light-receiving layer including light-emitting diodes disposed in the display region and at least one photodiode disposed in the sensor region; and a filter layer placed between the front cover and the light-emitting/light-receiving layer and including light-emitting filters aligned with the light-emitting diodes in the display region, and at least one light-receiving filter aligned with the at least one photodiode in the sensor region. The processor may be configured to receive, from the at least one photodiode, light information related to light passed through the at least one light-receiving filter to be received by the at least one photodiode, and perform, by the light information, a function related to an image acquired from the first camera to be displayed on the display. Various other embodiments are possible.