Camera Module Integration with Display Light Transmission Region
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Solution Overview
Problem
Integrating a camera module into small form factor portable electronic devices, such as smartphones and smartwatches, is challenging due to tightly integrated components and the need for precise optical alignment, especially with optical image stabilization and autofocus mechanisms, which complicates manufacturing and placement relative to the display screen.
Innovation Solution
The camera module is integrated using either front-crystal integration, where it resides on the display, or housing-side integration, with a bracket system that fixes the camera module in a fixed position, allowing for easier calibration and alignment with the display panel, and a high light transmission region is created in the display panel to enhance light transmission without compromising the display's integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the camera module is integrated using front-crystal integration or housing-side integration with a bracket system, then the alignment and fit of the camera module with the display panel is improved, but the device complexity increases due to additional integration methods and calibration requirements
Solution Approach 1:
The patent divides the integration process into two distinct methods: front-crystal integration where the camera module resides on the display, and housing-side integration where a bracket system fixes the camera module. This segmentation allows each method to be optimized independently for specific alignment requirements while managing overall system complexity through modular approaches.
Solution Approach 2:
The patent implements preliminary calibration and alignment procedures before final assembly. The bracket system includes pre-configured mounting positions and alignment features that are prepared in advance, allowing the camera module to be positioned accurately without requiring complex real-time adjustment during final assembly.
2Reliability
If a high light transmission region is created in the display panel to enhance light transmission to the camera module, then the camera performance is improved, but the display integrity and aesthetics are compromised
Solution Approach 1:
The patent applies local quality by creating a high light transmission region only in the specific area where the camera module requires light access, rather than compromising the entire display panel. This localized approach maintains the display's aesthetic integrity and structural completeness while providing the necessary light transmission for camera functionality.
Solution Approach 2:
The patent introduces an intermediary structure (the bracket system or integration mechanism) that mediates between the camera module's light transmission requirements and the display panel's aesthetic requirements. This intermediary allows precise positioning and light transmission without requiring visible modifications to the display's overall appearance.
3Adaptability or versatility
If optical image stabilization and autofocus mechanisms are incorporated into the camera module, then the camera functionality is improved, but the manufacturing precision requirements and device complexity increase
Solution Approach 1:
The patent incorporates dynamic mechanisms for optical image stabilization that can adjust the optical lens position on the X and Y axes in response to external excitation. The autofocus mechanism dynamically moves the optical lens along the optical axis to adjust focal distance. These dynamic capabilities allow the camera to maintain functionality under varying conditions while managing precision requirements through active adjustment rather than rigid fixed positioning.
Solution Approach 2:
The optical image stabilization mechanism includes sensing and reaction components that provide feedback about external excitation and disturbance. This feedback loop allows the system to detect and correct for unwanted motion automatically, reducing the stringency of manufacturing precision requirements by compensating for tolerances through active 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
This approach enables improved aesthetics, better fit, and enhanced camera performance by allowing for precise alignment and increased light transmission to the camera module, while maintaining the display's functionality and appearance.
Implementation Method 1
a high light transmission region is created in the display panel to enhance light transmission
Data Source
AI summary
An electronic device is provided. The electronic device includes a camera module having an optical axis and a set of one or more lenses centered along the optical axis. The electronic device also includes a display panel including an enhanced light transmission region. The enhanced light transmission region permits a greater amount of light to pass therethrough compared to at least one other region of the display panel. The electronic device further includes a display printed circuit board (PCB). In addition, the electronic device includes an aperture stop positioned between the set of one or more lenses and the display panel. The electronic device includes a transparent cover positioned over the display panel on an opposite side of the display panel from the display PCB. The electronic device also includes a housing configured to retain the camera module, the display panel, the display PCB, and the aperture stop therein.