Display Panel Anti-Reflective Layer for High-Transmittance Component Areas
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Solution Overview
Problem
Existing display panels face challenges in increasing light transmittance in component areas while reducing light reflectance, which limits the expansion of display areas and integration of various functions in electronic devices.
Innovation Solution
The display panel design includes a substrate with specific display elements and openings defined by a pixel defining layer, an anti-reflective layer with a black matrix and color filters, and a touch sensor layer to enhance light transmittance and reduce reflectance, allowing for improved integration of components and functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display area is increased to expand functionality, then the area occupied by the display panel is improved, but the light transmittance in component areas deteriorates due to increased light reflectance
Solution Approach 1:
The patent applies local quality by implementing different optical characteristics in different regions of the display panel. Specifically, the component area (where components like cameras or sensors are located) is designed with enhanced light transmittance properties compared to the main display area. This is achieved through optimized pixel defining layer structures and anti-reflective coatings in the component area, allowing light to pass through more effectively while the main display area maintains its display functionality.
Solution Approach 2:
The patent converts the harmful effect of light reflectance into a beneficial outcome by strategically designing the pixel defining layer and anti-reflective coating to control reflection patterns. The pixel defining layer's opening structure and the anti-reflective coating work together to redirect reflected light away from the component area, converting what would normally be harmful reflections into a design feature that enhances light transmittance in critical component regions.
2Adaptability or versatility
If the component area is added to integrate various functions, then the functionality of the electronic device is improved, but the light reflectance in the component area increases
Solution Approach 1:
The patent segments the display panel into distinct functional zones: the main display area and the component area. Within the component area, it further segments the pixel defining layer into multiple openings that define emission areas for different display elements. This segmentation allows each region to be optimized independently - the component area with its specific opening pattern reduces light reflectance while maintaining the integration of various functions like cameras or sensors.
Solution Approach 2:
The anti-reflective coating acts as an intermediary layer between the pixel defining layer and the external environment. This intermediary structure specifically addresses the light reflectance problem in the component area by providing optical interference that reduces reflected light intensity. The anti-reflective coating mediates between the structural requirements of the pixel defining layer and the optical requirements for minimizing reflections, enabling function integration without harmful light reflectance.
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 enhances light transmittance and reduces reflectance, enabling larger display areas and integration of various components in electronic devices, improving functionality and user experience.
Implementation Method 1
an anti-reflective layer on the display element layer, where the anti-reflective layer includes a black matrix defining therein a first upper opening overlapping the first opening and the second opening
Data Source
AI summary
A display panel includes: a substrate including a component area and a main area surrounding at least a portion of the component area, the component area including a pixel area and a transmission area; a display element layer on the substrate, the display element layer including a first display element overlapping the pixel area of the component area in a plan view, a second display element overlapping the pixel area of the component area, and a pixel defining layer defining therein a first opening and a second opening defining an emission area of the first display element and an emission area of the second display element, respectively; and an anti-reflective layer on the display element layer, the anti-reflective layer including a black matrix defining therein a first upper opening overlapping the first opening and the second opening, and a first color filter overlapping the first upper opening.