Under-Display Camera Module Wiring with Curved Regions for Flare Control
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Solution Overview
Problem
Light spreading and flare occur in under-display camera modules due to differences in refractive index between connection wires and insulating films, degrading image quality.
Innovation Solution
The camera module is designed with connection wires arranged in a transmissive region of the display, featuring curved regions to minimize light spreading and flare, and a display panel with varying pixel densities to enhance light transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If connection wires are arranged in the transmissive region to increase light transmittance, then light transmittance is improved, but light spreading and flare occur due to refractive index difference
Solution Approach 1:
The connection wires are designed with curved regions instead of straight lines. The curved shape reduces the refractive index difference effect by gradually changing the light path, thereby minimizing light spreading and flare while maintaining light transmittance in the under-display camera region.
Solution Approach 2:
The connection wires have different shapes in different regions: straight sections for efficient electrical connection and curved sections for reducing optical interference. This local variation in geometry optimizes both electrical functionality and optical performance in different spatial zones.
2Illumination intensity
If the display panel has varying pixel densities with a first region having lower pixel density and a second region having higher pixel density, then light transmission is enhanced in the camera region, but manufacturing complexity increases
Solution Approach 1:
The display panel is divided into two regions with different pixel densities: a first region with lower pixel density for the under-display camera area to maximize light transmission, and a second region with higher pixel density for the display area to ensure image quality. This localized differentiation optimizes both camera performance and display quality.
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 reduces light spreading and flare, improving image quality in under-display camera modules by optimizing the shape and arrangement of connection wires.
Implementation Method 1
Light spreading and flare may occur in the transmissive region due to a difference in refractive index between the connection wires (e.g., transparent wires) and an insulating film.
Data Source
AI summary
An example electronic device includes a camera module, wherein the electronic device may include a display panel and the camera module is disposed under the display panel. The display panel may include a first region having a first pixel density and overlapping the camera module, and a second region having a second pixel density greater than the first pixel density. The first region may include a transmissive region through which light is transmitted and which includes first pixels, and a non-transmissive region which is disposed around the transmissive region and in which a first driving circuit configured to drive the first pixels is arranged. Connection wires connecting the first pixels and the first driving circuit to each other may be arranged in the transmissive region, the connection wires may include at least one curved region.