Display Camera Hole Light Shielding and EMI Interference
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Solution Overview
Problem
Display apparatuses with camera holes face issues such as light leakage, electromagnetic interference, and camera alignment problems, which affect image quality and camera performance, especially when components like cameras and sensors are integrated into the display area.
Innovation Solution
A display apparatus design that includes a light shielding layer, an adhesive layer, a display layer, and an intermediate member with a camera module and hole guide, where the intermediate member prevents electromagnetic interference and ensures correct camera alignment, and the light shielding layer minimizes light leakage by having different opening diameters and a porous hole guide for impact absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a camera hole is created in the display area to integrate camera and sensor components, then the display area is maximized and aesthetic quality is improved, but light leakage occurs affecting image quality
Solution Approach 1:
The patent divides the opening structure into multiple segments: a first opening for the camera module and a second opening (light shielding opening) positioned at a different depth level. This segmented approach allows the camera to access light through the first opening while the light shielding layer blocks external light from entering through the second opening, thereby preventing light leakage while maintaining the camera hole in the display area.
Solution Approach 2:
The patent introduces a depth dimension by creating openings at different levels within the display structure. The first opening and second opening are positioned at different depths, allowing the light shielding layer to be placed between them. This dimensional separation enables the camera to receive light while blocking external light paths, solving the light leakage problem without sacrificing display area integration.
2Adaptability or versatility
If the display layer and adhesive layer are removed to form the camera hole, then camera integration is enabled, but electromagnetic interference from user touch charge affects the display layer
Solution Approach 1:
The patent introduces an intermediate member as a mediator between the camera module and the display layer. This intermediate member includes a light shielding opening that serves as both a light path for the camera and an electromagnetic shield. By positioning this intermediate structure, the patent blocks electromagnetic fields generated by user touch charge from affecting the display layer, while still allowing camera integration through the removed display and adhesive layers.
3Ease of manufacture
If the camera is inserted directly into the camera hole, then assembly is simplified, but collision between camera and cover glass or display layer causes damage and misalignment
Solution Approach 1:
The patent implements protective structures beforehand to prevent collision damage during camera insertion. The intermediate member with its light shielding opening acts as a cushioning barrier between the camera module and the cover glass/display layer. This pre-positioned protective structure absorbs impact forces and guides the camera into correct alignment, preventing damage while maintaining assembly simplicity.
Solution Approach 2:
The patent performs preliminary actions by pre-forming the first opening and second opening in the intermediate member before camera insertion. The light shielding opening is prepared in advance to serve as both an optical path and a protective guide. This preliminary preparation ensures that when the camera is inserted, it automatically aligns with the correct position and depth, preventing misalignment and collision damage.
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 enhances image quality by preventing light leakage and electromagnetic interference, ensuring correct camera alignment, and improving camera performance by using a multi-layered structure for efficient light collection and impact absorption.
Implementation Method 1
a light shielding layer is needed to shield external light
Implementation Method 2
charge generated by a user's touch of the display apparatus generated an electromagnetic field and the electromagnetic field affected the display layer
Data Source
AI summary
A display apparatus may include: a cover member comprising a hole area; a light shielding layer, an adhesive layer and a display layer that are disposed under the cover member; a first opening provided at the adhesive layer and the display layer corresponding to the hole area; a camera module inserted into the first opening; and an intermediate member disposed between the hole area and the camera module.