Camera Spacer for Under-Panel Display Optical Glue Voids
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Solution Overview
Problem
Current camera under panel (CUP) display devices experience a decrease in optical effect and imaging quality due to voids or bubbles formed between the optical glue and the curved light incident surface of the camera lens, as the optical glue cannot completely fill the gap between the lens and the housing.
Innovation Solution
A spacer with a flat surface is attached to the display panel, covering the light incident surface of the camera lens and ensuring the optical glue forms a uniform layer, preventing direct coverage of the lens and eliminating voids or bubbles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical glue is used to bond the camera lens to the housing, then the camera can be attached to the display panel, but the optical glue cannot completely fill the gap between the curved lens surface and the housing, forming voids or bubbles that affect imaging quality
Solution Approach 1:
A flat plate is introduced as an intermediary component between the curved lens surface and the optical glue. This flat plate provides a planar bonding surface that allows the optical glue to spread uniformly and completely fill the gap, eliminating voids and bubbles while maintaining reliable optical contact between the lens and housing
Solution Approach 2:
The bonding interface is segmented into two separate bonding surfaces: one between the lens and the flat plate, and another between the flat plate and the housing. This segmentation allows each interface to be optimized independently, with the flat plate serving as a stable intermediary that ensures complete glue filling at both interfaces
2Reliability
If the light incident surface of the lens is curved (arc or uneven curved surface), then the lens can achieve proper optical focusing, but the optical glue cannot be completely filled into the tiny gap between the lens and housing
Solution Approach 1:
The flat plate acts as a mediator that decouples the optical function from the bonding function. The curved lens surface maintains its optical focusing performance by bonding to the flat plate, while the flat plate's planar surface provides an easy-to-manage bonding interface with the housing, significantly simplifying the bonding process
Solution Approach 2:
The functions of optical focusing and structural bonding are segmented into separate components. The lens retains its curved surface for optimal optical performance, while the flat plate provides a simplified planar interface for bonding to the housing, making the manufacturing process easier and more reliable
Data Source
AI summary
The present disclosure provides a display device, including a display panel and a camera, the camera is attached to a side of the display panel by an optical glue, wherein the camera includes a housing, a lens, and a spacer. The spacer is fixed on a side of the housing facing the display panel and completely covers a light incident surface of the lens, wherein a first surface of the spacer is attached to the side of the display panel by the optical glue, and the first surface of the spacer is a flat surface, which prevents a problem of reduced optical effect of the camera.