Display Panel Line Layout for Under-Display Camera Fringe Reduction
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Solution Overview
Problem
The quality of images captured by a camera integrated into an electronic device with an organic EL display device is deteriorated due to interference fringes caused by straight-line patterns of metal lines on the array substrate of the display panel.
Innovation Solution
The metal lines connected to the pixels are formed in a curved or meandering shape to disperse the direction of diffraction, reducing interference fringes and improving image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If straight-line metal lines are used on the array substrate, then manufacturing is simple and device complexity is low, but interference fringes occur and image quality deteriorates
Solution Approach 1:
The patent applies curvature to the metal lines by changing them from straight lines to curved or meandering shapes. This curvature disperses the diffraction direction of light passing through the display panel, reducing the formation of interference fringes and improving image quality captured by the camera.
2Area of stationary object
If camera is arranged on rear surface to enlarge display area, then display area is increased, but image quality is deteriorated by interference fringes
Solution Approach 1:
The curved or meandering metal lines disperse light diffraction in multiple directions rather than creating concentrated interference patterns. This allows the camera to be positioned on the rear surface with improved image quality, as the curvature reduces the intensity and visibility of interference fringes in the captured images.
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
The curved or meandering shape of the metal lines effectively reduces interference fringes, enhancing the image quality captured by the camera.
Implementation Method 1
The metal lines connected to the pixels are formed in a curved or meandering shape to disperse the direction of diffraction, reducing interference fringes and improving image quality.
Data Source
AI summary
According to one embodiment, an electronic apparatus includes a display panel on which a plurality of pixels are arranged, and an image capturing element configured to receive light through the display panel. The display panel includes a line formed in an area overlapping with the image capturing element and connected to the pixels. The line is shaped to meander in a plan view.