Under-Screen Camera Display Panel With Groove-Wall Transparent Wiring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In high PPI display panels with under-screen cameras, arranging a large number of transparent wirings is challenging due to the need for high process accuracy and reduced light transmittance, which affects image capture and shooting.
Innovation Solution
The display panel features an insulating layer with first grooves in the camera region, where transparent wirings are disposed on the groove walls, increasing space and reducing the required accuracy for wiring arrangement while minimizing light shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If transparent wirings are arranged in a flat layer, then the wiring arrangement is simple, but the light transmittance decreases and process accuracy requirements increase
Solution Approach 1:
The patent transitions from a two-dimensional flat wiring arrangement to a three-dimensional configuration by placing transparent wirings on the inclined surfaces of grooves. This dimensional change allows wirings to be positioned at angles (30-60 degrees from vertical) rather than purely horizontal, reducing their projected area and light-blocking effect while maintaining electrical connectivity.
Solution Approach 2:
The patent segments the continuous insulating layer by creating grooves that divide it into regions with inclined surfaces. These segmented structures provide dedicated positioning areas for transparent wirings, allowing them to be arranged systematically on groove walls rather than attempting to place them directly on a flat surface, thereby reducing overlap and improving light transmittance.
2Measurement precision
If more transparent wirings are arranged to meet high PPI requirements, then the display resolution improves, but the light transmittance decreases affecting camera function
Solution Approach 1:
By arranging wirings on inclined groove surfaces rather than flat layers, the patent reduces the vertical projection area of each wiring. This allows more wirings to be packed into the camera region without proportionally increasing light blockage, thus supporting high PPI requirements while preserving sufficient light transmittance for under-screen camera operation.
Solution Approach 2:
The patent applies different structural configurations to different regions: grooves with inclined surfaces are specifically created in the camera region to optimize light transmittance, while other regions can use standard flat wiring arrangements. This localized structural differentiation allows the display to achieve high resolution overall while maintaining camera performance in the specific camera region.
3Ease of manufacture
If transparent wirings are placed on flat insulating layer surface, then the manufacturing process is simple, but the required process accuracy is too high
Solution Approach 1:
The patent performs preliminary action by creating grooves with inclined surfaces in the insulating layer before placing the transparent wirings. These pre-formed groove structures serve as natural positioning guides that automatically align and support the wirings during placement, reducing the precision requirements for the wiring deposition process compared to placing wirings directly on a flat surface.
Solution Approach 2:
By moving from 2D flat surface wiring placement to 3D groove wall wiring placement, the patent introduces additional spatial degrees of freedom. The inclined groove walls provide inherent mechanical support and alignment features that make the wiring placement process more tolerant to variations, thereby easing manufacturing precision requirements.
Data Source
AI summary
A display panel has an active area, and the active area has a camera region. The display panel includes a base, an insulating layer, and a plurality of transparent wirings. The insulating layer is disposed on the base. The insulating layer is provided with a plurality of first grooves located in the camera region. An included angle between a groove wall of a first groove and a surface on which an opening of the first groove is located is less than 90 degrees. The plurality of transparent wirings are disposed on groove walls of the plurality of first grooves.