Display Panel Light Concentrating Structures for Curved Screens
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Solution Overview
Problem
In curved screen display panels, the increasing viewing angle relative to flat areas leads to a gradual decrease in light intensity, affecting display performance.
Innovation Solution
A display panel design featuring a light-emitting device layer with pixels and a light exiting layer that includes main and auxiliary light-concentrating structures, where the difference in opening areas between the pixels and light-concentrating structures gradually increases from the curved side to the flat area, enhancing light concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a curved screen design is implemented to improve screen-to-body ratio, then the screen-to-body ratio is improved, but the light intensity in the curved side area gradually decreases due to increasing viewing angle
Solution Approach 1:
The patent applies different opening area ratios of light-concentrating structures to different regions of the display panel. Specifically, pixels in the curved side area have a first opening area ratio, while pixels in the flat area have a second opening area ratio, with the first ratio being different from the second. This local differentiation compensates for the viewing angle effect, maintaining uniform light intensity across the curved and flat areas while preserving the high screen-to-body ratio achieved through curved screen design.
2Adaptability or versatility
If the viewing angle in the curved side area increases relative to the flat area, then the curved screen design is achieved, but the light intensity gradually decreases affecting display performance
Solution Approach 1:
The patent implements region-specific light-concentrating structures where pixels in the curved side area (with larger viewing angles) have one opening area ratio and pixels in the flat area (with smaller viewing angles) have another opening area ratio. This localized adjustment ensures that each region's light output is optimized for its specific viewing angle characteristics, maintaining consistent display performance across different viewing conditions.
Solution Approach 2:
The patent changes the opening area ratio parameter of the light-concentrating structures based on the spatial position and viewing angle characteristics. By adjusting this parameter differently for curved side area pixels versus flat area pixels, the system compensates for the viewing angle-induced light intensity variation, ensuring uniform brightness perception across the entire display surface.
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 improves display performance by maintaining consistent brightness across the flat and curved areas, addressing the issue of reduced light intensity at increasing viewing angles.
Implementation Method 1
a light exiting layer disposed above the light-emitting device layer and comprising a plurality of main light-concentrating structures corresponding to the pixels located in the curved side area
Data Source
AI summary
A display panel has a flat area and a curved side area at least disposed on one side of the flat area. The display panel includes a light-emitting device layer and a light exiting layer. The light-emitting device layer includes a plurality of pixels, and the pixels have a first opening area. The light exiting layer is disposed above the light-emitting device layer and includes a plurality of main light-concentrating structures corresponding to the pixels located in the curved side area. The main light-concentrating structures have a second opening area. In a direction from the curved side area to the flat area, a first difference between the first opening area and the second opening area gradually increases.