Display Device Groove Structure for High Resolution and Color Reproducibility
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Solution Overview
Problem
Current display devices for VR, AR, SR, and MR applications face challenges in achieving high resolution and color reproducibility, which affect the sense of reality and immersion due to low resolution and limited color accuracy.
Innovation Solution
A display device design featuring light-emitting elements of different colors with a specific groove structure in the insulating layer, where the grooves are embedded with insulating layers, allowing for precise separation and high accuracy in forming light-emitting layers, enhancing resolution and color reproducibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light-emitting elements are arranged closely to increase resolution, then display resolution is improved, but color reproducibility deteriorates due to insufficient separation between different color elements
Solution Approach 1:
The patent introduces grooves that divide and separate adjacent light-emitting elements of different colors. These grooves create physical boundaries between red, green, and blue elements, preventing color mixing while allowing dense arrangement. The segmentation enables high resolution by permitting closer element spacing without sacrificing color accuracy, as each element is isolated by the groove structure.
Solution Approach 2:
The groove structure provides localized separation exactly where needed between adjacent light-emitting elements. By concentrating the separation function at the interfaces between elements rather than using uniform spacing throughout the display, the patent achieves both high resolution (through close element spacing) and good color reproducibility (through localized isolation of colors).
2Manufacturing precision
If insulating layers are added to separate light-emitting elements for better color reproducibility, then color reproducibility is improved, but device complexity increases
Solution Approach 1:
The patent combines the separation function with the existing insulating layer structure. Rather than adding completely new components, the grooves are formed within and integrated into the insulating layers that already exist in the display device architecture. This merging approach provides color separation while minimizing increases in overall device complexity.
Solution Approach 2:
The insulating layers serve multiple functions: they provide electrical insulation between conductive elements and simultaneously create the groove structures that separate adjacent light-emitting elements of different colors. This multi-functionality reduces the need for additional dedicated separation components, thereby limiting the increase in device complexity while achieving improved color reproducibility.
Data Source
AI summary
A high-resolution display device and a manufacturing method thereof are provided. The display device includes a first insulating layer, a first light-emitting element and a second light-emitting element over the first insulating layer, a third insulating layer located to be over and cover the first light-emitting element, and a fifth insulating layer located to be over and cover the second light-emitting element. The first light-emitting element and the second light-emitting element emit light of different colors. A first groove and a second groove are provided in a region that is in the first insulating layer and between the first light-emitting element and the second light-emitting element. Part of the third insulating layer is embedded in the first groove, and part of the fifth insulating layer is embedded in the second groove.