Camera Module Recess With Inclined Surface for UV Bonding
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Solution Overview
Problem
In electronic devices with minimized bezels and expanded active areas, the bonding strength of camera modules is weakened due to shallow curing depth of UV-curable resin, leading to potential displacement and vision alignment issues.
Innovation Solution
The camera module is designed with a convex shape and accommodated in a recess with an inclined surface, allowing for UV-curable resin to be applied in a way that maximizes bonding area and strength by reflecting UV light effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If UV-curable resin is injected into the space between the camera module and support structure, then bonding is achieved, but the curing depth is shallow and bonding strength is weakened
Solution Approach 1:
The recess introduces a new spatial dimension by creating a stepped structure with multiple levels. The first resin portion is disposed at a first level while the second resin portion is disposed at a second level lower than the first level, allowing UV light to cure resin at different depths effectively. This multi-level configuration enables thorough curing of the UV-curable resin between the camera module and support structure, solving the shallow curing depth problem while maintaining strong bonding.
2Reliability
If camera module is bonded to housing, then assembly is completed, but camera module may be displaced or vision alignment may be distorted
Solution Approach 1:
The bonding structure is segmented into multiple resin portions at different levels within the recess. The first resin portion provides bonding at the upper level while the second resin portion provides bonding at the lower level. This segmentation allows each resin portion to be optimally cured and positioned, ensuring the camera module is firmly fixed without displacement and maintaining precise vision alignment.
3Area of stationary object
If full display structure with minimized bezel is applied, then active area is expanded, but camera hole size must be reduced requiring vision alignment
Solution Approach 1:
The recess structure is pre-formed in the support structure before the camera module is installed. This preliminary configuration provides a predetermined bonding cavity that guides the UV-curable resin to the exact position needed for optimal bonding. The pre-formed recess eliminates the need for complex post-assembly alignment adjustments, allowing the camera module to be accurately positioned and bonded in one step, thus maintaining the minimized bezel design while simplifying the overall alignment process.
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 design ensures strong and stable bonding of the camera module, facilitating thinner and more precise electronic devices with improved vision alignment.
Implementation Method 1
curing the UV-curable resin with UV rays
Implementation Method 2
an inclined surface between the first surface and the second surface
Data Source
AI summary
According to an embodiment of the disclosure, an electronic device includes a camera module having an angle of view formed in a first direction, and a recess configured to accommodate the camera module, wherein the camera module may include at least one lens, and a lens barrel that encloses the at least one lens and includes at least one portion having an outer diameter that decreases in the first direction, and the recess may include an inclined surface inclined toward the lens barrel. Electronic devices as described above may vary according to embodiments.