Image Sensor Stabilization Assembly Without Flexible Circuits
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Solution Overview
Problem
Existing image stabilization systems in electronic devices, such as smartphones and tablets, face challenges in maintaining consistent image quality due to shaking during use, particularly due to the inconsistency of flexible printed circuit modules and potential tilting of image sensors.
Innovation Solution
An image stabilization assembly is introduced, comprising a base plate, a bearing plate with a fixed and movable member, an elastic member, an elevating bracket, and a driving mechanism with deformable members, which work together to stabilize the image sensor by compensating for camera shake through precise movement and elastic forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If flexible printed circuit modules are used to connect components in the image stabilization assembly, then the device can be miniaturized and integrated, but the manufacturing precision and reliability deteriorate due to inconsistencies in flexible circuit performance
Solution Approach 1:
The patent extracts the flexible printed circuit from the connection system and replaces it with rigid circuit boards. The first circuit board connects the driving mechanism to the bearing plate, while the second circuit board connects the bearing plate to the image sensor, eliminating the flexible circuit entirely and ensuring consistent electrical connections.
Solution Approach 2:
The bearing plate serves as an intermediary component that rigidly connects the driving mechanism and image sensor through circuit boards. This intermediary structure provides stable mechanical support and consistent electrical pathways, resolving the reliability issues of flexible circuits while maintaining compact integration.
2Manufacturing precision
If the image sensor is fixed rigidly to prevent movement, then manufacturing precision is improved, but the ability to compensate for camera shake deteriorates
Solution Approach 1:
The patent implements a dynamic positioning system where the image sensor is mounted on a bearing plate that can move relative to the driving mechanism. The bearing plate rotates and translates in response to shake detection, allowing the image sensor to dynamically compensate for camera movement while maintaining precise positioning through controlled motion.
Solution Approach 2:
The system segments the image stabilization function into separate movable and fixed components. The bearing plate and image sensor form a movable assembly that can independently compensate for shake, while the driving mechanism remains relatively fixed. This segmentation allows precise shake compensation without compromising overall positioning accuracy.
3Reliability
If complex driving mechanisms with multiple deformable members are used, then image stabilization performance is improved, but device complexity increases
Solution Approach 1:
The patent merges the driving mechanism components into a compact integrated assembly. The driving mechanism includes a motor, gear transmission, and bearing plate all working together as a unified system. This merging reduces the number of separate deformable members and simplifies the overall structure while maintaining effective image stabilization through coordinated motion control.
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 enhances image stabilization by ensuring consistent and precise movement of the image sensor, improving imaging quality and reducing production yield issues associated with flexible circuit inconsistencies.
Implementation Method 1
an elastic member, disposed between the fixed member and the movable member
Implementation Method 2
the multiple deformable members are configured to be deformed in an energized state to drive the moving member, the movable member and the image sensor to move
Data Source
AI summary
An image stabilization assembly, a camera module and an electronic device are provided. The image stabilization assembly includes: a base plate, a bearing plate, an elastic member, an elevating bracket and a driving mechanism. The bearing plate includes a fixed member provided on the base plate and a movable member for bearing an image sensor. The elastic member is arranged between the fixed member and the movable member. The elevating bracket is arranged between the base plate and the movable member. The driving mechanism includes a moving member connected with the movable member, and a deformable member connected between the fixed member and the moving member. When the deformable member is energized, the deformable member may be deformed to drive the moving member, the movable member and the image sensor to move.