Display Panel Opening Layout for Uniform Brightness Around Sensor Holes
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Solution Overview
Problem
Display panels with light-transmitting holes experience uneven brightness and poor display effects due to increased reflectivity, affecting the overall display performance.
Innovation Solution
A display panel design featuring a substrate with a first insulating layer, a first electrode layer, and a light-blocking layer, including an asymmetric opening combination where the first opening passes through the light-blocking layer and the second opening is in the insulating layer, with the first electrode layer at the second opening being a non-planar structure to reduce reflectivity and enhance display uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light-transmitting holes are disposed in the display panel to enable photosensitive function, then the photosensitive function is achieved, but the display uniformity deteriorates due to increased reflectivity and high brightness at hole positions
Solution Approach 1:
The patent applies asymmetry by configuring the opening combination asymmetrically, where the first opening in the light-blocking layer and the second opening in the insulating layer are positioned at different locations. This asymmetric arrangement causes reflected light from the first opening to be directed toward the second opening rather than returning to the first opening, thereby reducing display non-uniformity while maintaining photosensitive functionality
Solution Approach 2:
The patent converts the harmful reflected light into a beneficial effect by directing it toward the second opening using the asymmetric configuration. The reflected light that would normally cause display non-uniformity is instead channeled to the photosensitive element through the second opening, transforming a detrimental effect into a useful one that enhances both photosensitivity and display uniformity
2Illumination intensity
If the first electrode layer is configured with a non-planar structure at the second opening position, then the reflectivity is reduced and display uniformity is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by making the first electrode layer non-planar specifically at the position corresponding to the second opening, while keeping other regions planar. This localized non-planar structure selectively reduces reflectivity at the critical area where the second opening is located, improving display uniformity without unnecessarily increasing manufacturing complexity across the entire electrode layer
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 asymmetric design and non-planar electrode structure absorb reflected light, reducing the amount of light exiting through the first opening and improving display uniformity and user experience by minimizing the impact of reflected light on the display panel's performance.
Implementation Method 1
the first electrode layer is configured to reflect incident light to the side surface of the light-blocking layer adjacent to the substrate
Implementation Method 2
The asymmetric design and non-planar electrode structure absorb reflected light, reducing the amount of light exiting through the first opening
Data Source
AI summary
A display panel and display apparatus are provided in the present disclosure. The display panel includes a substrate; a first insulating layer disposed on a side of the substrate; a first electrode layer disposed on a side of the first insulating layer away from the substrate; a light-blocking layer disposed on a side of the first electrode layer away from the first insulating layer; and an opening combination, including a first opening and a second opening which correspond to each other. The first opening passes through the light-blocking layer along a direction perpendicular to a plane of the substrate; the second opening is at least in the first insulating layer; the opening combination includes an asymmetric design; and/or the first electrode layer at a position corresponding to the second opening is a non-planar structure.