Display Panel Reflectivity Reduction via Localized Light-Emitting Density
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Solution Overview
Problem
Display panels with camera functions experience high reflectivity in optical component-arranging regions due to ambient light reflection, making metals visible to the human eye.
Innovation Solution
A display panel design featuring a substrate with light-emitting units and a filter layer, where the density of light-emitting units is lower in the optical component-arranging region, and color resistors in the filter layer overlap light-transmitting regions to filter and reduce ambient light, thereby reducing reflectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical component-arranging region has high light transmittance to allow ambient light entry for camera function, then the camera can capture images effectively, but the ambient light is reflected by the cathode and other film layers to human eyes, increasing reflectivity and making metals visible
Solution Approach 1:
The patent applies local quality by differentiating the structure between the main display region and the optical component-arranging region. In the optical component-arranging region, the light-emitting unit density is reduced and color resistors are selectively arranged to overlap with light-transmitting regions, creating localized optical properties that reduce reflectivity specifically in the camera region without affecting the overall display performance
Solution Approach 2:
The patent introduces color resistors as an intermediary element in the filter layer. These color resistors are positioned to overlap with the light-transmitting regions in the optical component-arranging region, acting as a mediator that filters and reduces the intensity of ambient light before it reaches the reflective cathode and other film layers, thereby reducing the reflected light intensity
2Object-affected harmful factors
If the density of light-emitting units is reduced in the optical component-arranging region to lower reflectivity, then metal visibility is reduced, but the display brightness and coverage in that region may be affected
Solution Approach 1:
The patent implements local quality by creating distinct structural characteristics in the optical component-arranging region compared to the main display region. The light-emitting unit density is specifically reduced in the optical component-arranging region while maintaining adequate brightness through the selective placement of color resistors that filter ambient light without completely blocking it
Solution Approach 2:
The patent applies parameter changes by modifying the density parameter of light-emitting units in the optical component-arranging region. The density is adjusted to be lower than in the main display region, which reduces the overall light emission and reflectivity in that specific area, thereby reducing metal visibility while maintaining display functionality
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 solution effectively reduces the reflectivity of the optical component-arranging region, minimizing the visibility of metals and improving anti-reflection performance while maintaining high light transmittance for optimal imaging quality.
Implementation Method 1
each of these color resistors can filter light rays having different colors from itself. Thus, amount of light rays entering the light-transmitting regions can be reduced
Implementation Method 2
the ambient light, when entering the optical component-arranging region, is reflected by a reflective film in the optical component-arranging region, for example, a cathode of a light-emitting unit, to the human eyes
Data Source
AI summary
Provided are a display panel and a display apparatus including the display panel. The display panel includes, sequentially along a light-exiting direction, a substrate, a plurality of light-emitting units located in a main display region and an optical component-arranging region, and a filter layer including a plurality of color resistors. A density of light-emitting units located in the optical component-arranging region is smaller than a density of light-emitting units located in the main display region. The optical component-arranging region includes a plurality of light-emitting regions and a plurality of light-transmitting regions. The plurality of light-emitting units located in the optical component-arranging region is arranged in the plurality of light-emitting regions. In a direction perpendicular to the substrate, some color resistors of the plurality of color resistors overlap the plurality of light-transmitting regions. The invention reduces the reflectivity of the optical component-arranging region and weakens the phenomenon that metals are visible.