Reciprocating Under-Display Camera Region for Artifact Reduction
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Solution Overview
Problem
In electronic devices with under-display camera (UDC) technology, the transmittance of light through the camera is reduced due to opaque substrates, and light diffracted by light-emitting units and wires can cause image artifacts like flare and blurring.
Innovation Solution
An electronic device with a display region capable of reciprocating (vibrating) and a camera module that obtains images while the region is vibrating, synthesizing multiple images to minimize artifacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If under-display camera (UDC) technology is implemented with opaque substrate, then full screen display is achieved, but light transmittance to camera is reduced
Solution Approach 1:
The patent applies the dynamics principle by making the display region capable of reciprocating motion. The display region vibrates in a predetermined direction during image capture, causing light from different angles to reach the camera sensor over time. This dynamic movement compensates for the opaque substrate blocking light, allowing sufficient light transmittance while maintaining full screen display area.
Solution Approach 2:
The patent directly applies mechanical vibration by causing the display region to vibrate in a predetermined direction during image capture. This vibration disperses diffraction effects caused by light-emitting units and wires, and allows light from multiple angles to reach the camera sensor, improving light transmittance without reducing the display area.
2Adaptability or versatility
If light-emitting units and wires are disposed in UDC region, then display functionality is maintained, but light diffraction causes image artifacts
Solution Approach 1:
The patent uses dynamics by making the display region move during image capture. This movement changes the relative position between light-emitting units/wires and the camera sensor over time, causing diffraction patterns to shift and average out across multiple captured frames. The result is reduced image artifacts while maintaining display functionality in the UDC region.
Solution Approach 2:
The patent applies mechanical vibration to disperse the harmful diffraction effects. By vibrating the display region in a predetermined direction, the light paths through light-emitting units and wires change dynamically, spreading diffraction effects across different spatial locations in captured images. This allows artifact reduction through image synthesis while keeping light-emitting units and wires in place for display functionality.
3Object-affected harmful factors
If display region is made to reciprocate, then image artifacts are reduced, but device complexity increases
Solution Approach 1:
The patent applies universality by making the display region serve multiple functions: it acts as both the light-transmitting medium for the camera and the vibrating element for artifact reduction. The same display structure that displays images also performs the vibration function, eliminating the need for separate vibration mechanisms and reducing overall device complexity.
Solution Approach 2:
The patent uses self-service by enabling the display region to perform the artifact reduction function through its own reciprocating motion. The display region vibrates under its own structure without requiring external vibration actuators, and the image processing system synthesizes multiple frames captured during vibration to produce artifact-free images, making the system self-sufficient.
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 effectively reduces image artifacts by vibrating the UDC region, improving light transmittance and image quality by dispersing diffraction effects across multiple images.
Implementation Method 1
The light entering the camera through the UDC region may be diffracted by the light-emitting unit disposed in the UDC region and/or at least some of the wires disposed in the UDC region so that the quality of an image obtained through the camera may deteriorate
Data Source
AI summary
An electronic device is provided. The electronic device includes a display including a first region being capable of reciprocating, a camera configured to obtain an image using incident light through the first region, a driving part configured to reciprocate the first region, and at least one processor electrically connected to the display, the camera, and the driving part, wherein the at least one processor may be configured to control the driving part such that the first region reciprocates, obtain a plurality of first images through the camera while the first region reciprocates, and obtain a second image by synthesizing the plurality of first images.