Display Panel Light-Blocking Layout for White Light Uniformity
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Solution Overview
Problem
Existing display panels face challenges in maintaining uniform white light characteristics across different viewing angles due to variations in the lifespan, functions, and luminous colors of light-emitting elements, affecting display quality.
Innovation Solution
A display panel design featuring light-emitting elements with varying areas and corresponding light-blocking structures, where the distance and area of light-blocking structures relative to light-emitting elements are adjusted to maintain consistent relative brightness and reduce display differences across viewing angles, ensuring uniform white light characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If light-blocking structures with varying distances and areas are introduced to balance brightness distribution, then uniformity of white light characteristics is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by configuring light-blocking structures with different areas and distances from light-emitting elements based on their specific positions and luminous characteristics. Each light-blocking structure is locally optimized to compensate for brightness differences in specific regions, achieving uniform white light characteristics across the display panel without requiring complete redesign of the entire structure.
Solution Approach 2:
The patent utilizes parameter changes by varying the area and position parameters of light-blocking structures to control light emission characteristics. By adjusting these geometric parameters, the patent balances the brightness distribution of sub-pixels with different areas and luminous colors, resolving the contradiction between uniformity and structural simplicity.
2Adaptability or versatility
If different areas of light-emitting elements are used to achieve display functions, then adaptability is improved, but difference in white light characteristics under different viewing angles worsens
Solution Approach 1:
The patent addresses this contradiction by applying local quality through position-dependent configuration of light-blocking structures. Each light-blocking structure is specifically designed according to the area and luminous color of its corresponding light-emitting element, enabling the display to adapt to different functional requirements while maintaining uniform white light characteristics across varying viewing angles.
Solution Approach 2:
The patent employs asymmetry by introducing asymmetric light-blocking structures with varying areas and distances from different light-emitting elements. This asymmetric configuration compensates for the inherent differences in light emission from sub-pixels of different areas, achieving uniform white light characteristics while preserving the adaptability needed for different display functions.
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 the uniformity of white light characteristics and display quality by adjusting the light-emitting elements and their blocking structures, balancing brightness and color coordinates across different viewing angles.
Implementation Method 1
a light-blocking structure on a side of one light-emitting element away from the substrate
Data Source
AI summary
A display panel and a display device are provided. The display panel includes: a substrate; light-emitting elements on the substrate; and a light-blocking structure on one light-emitting element. One light-emitting element includes a first light-emitting element and a second light-emitting element. An area of an orthographic projection of the first light-emitting element is S1, and an area of an orthographic projection of one second light-emitting element is S2. One light-blocking structure includes a first light-blocking structure and a second light-blocking structure. An orthographic projection of one first light-blocking structure at least partially surrounds one corresponding first light-emitting element and a distance from the first light-blocking structure to the first light-emitting element is d1. An orthographic projection of one second light-blocking structure at least partially surrounds one corresponding second light-emitting element and a distance from the second light-blocking structure to the second light-emitting element is d2. |S1−S2|>0, and |d1−d2|>0.