Camera Module Light Shielding Layer Nesting for Display Aperture Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing electronic devices have a relatively small screen-to-body ratio due to the large light-passing holes required for the camera module, which are necessitated by assembly errors and the need for a distance between the light shielding layer and the display module.
Innovation Solution
The electronic device design includes a display module with a first and second glass substrate, a wiring structure, and a polarizer, along with a camera module featuring a light shielding layer, where the light-passing holes are optimized to minimize size and alignment errors, allowing for a more compact configuration that improves the screen-to-body ratio without compromising the camera's functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light-passing hole size is increased to accommodate assembly errors and ensure camera module functionality, then the camera module can work normally, but the screen-to-body ratio decreases
Solution Approach 1:
The patent applies nesting by placing the light shielding layer inside the camera module assembly, specifically positioning it between the lens assembly and the display module. This internal nesting eliminates the need for external light shielding structures that would require additional clearance, thereby reducing the light-passing hole size while maintaining both camera functionality and screen-to-body ratio
Solution Approach 2:
The patent changes the spatial arrangement by positioning the light shielding layer in the vertical dimension (between the lens assembly and display module) rather than requiring horizontal clearance. This dimensional reorganization allows for precise alignment through the light-passing hole without needing excessive lateral tolerance, thus reducing the hole size while ensuring proper light blocking
2Reliability
If a distance is maintained between the light shielding layer and the display module to ensure proper light blocking, then the camera module functions correctly, but the light-passing hole size must be increased
Solution Approach 1:
The light shielding layer is nested within the camera module structure, positioned in the space between the lens assembly and the display module. This nested configuration allows the light shielding layer to be extremely close to the display module (effectively eliminating the distance gap), while the light-passing hole is precisely positioned to align with both the shielding layer opening and the camera sensor, thereby maintaining effective light blocking without requiring an enlarged hole
Data Source
Figure 1
AI summary
An electronic device includes: a display module (100), where the display module (100) includes a first substrate (110), a second substrate (120), a wiring structure (130), and a polarizer (170), the first substrate (110) and the second substrate (120) are stacked, the wiring structure (130) is disposed on a surface of the second substrate (120) facing the first substrate (110), a first light-passing hole is disposed on the wiring structure (130), and the polarizer (170) is disposed on a surface of the first substrate (110) facing away from the second substrate (120); and a camera module (200), where the camera module (200) includes a camera body (210) and a light shielding layer (220), a light inlet hole (211) is disposed on the camera body (210), the second substrate (120) is located between the first substrate (110) and the camera body (210), the light shielding layer (220) is disposed on a side of the polarizer (170) away from the first substrate (110), and a second light-passing hole is disposed on the light shielding layer (220). The first light-passing hole, the second light-passing hole, and the light inlet hole (211) are arranged in an optical axis direction of the camera module (200), and both an orthographic projection of the first light-passing hole on a plane perpendicular to the optical axis direction and an orthographic projection of the second light-passing hole on the plane perpendicular to the optical axis direction are within a range of an orthographic projection of the light inlet hole (211) on the plane perpendicular to the optical axis direction.