Display Device Integrated Layer for Sensing and Viewing Angle Control
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Solution Overview
Problem
Existing display devices face challenges in efficiently controlling the viewing angle of displayed images while integrating separate functional layers for input sensing and viewing angle control, leading to complex structures and reduced manufacturing efficiency.
Innovation Solution
A display device with a simplified laminated structure that integrates input sensing and viewing angle control through a single layer, where the light control patterns are directly connected to electrode patterns, reducing floating and separation issues, thereby enhancing driving efficiency and structural reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate functional layers are used for input sensing and viewing angle control, then each function can be independently optimized, but the device structure becomes complex and manufacturing efficiency decreases
Solution Approach 1:
The patent combines the input sensing layer and viewing angle control layer into a single integrated layer. The light control patterns and electrode patterns are formed simultaneously in the same layer, eliminating the need for separate functional layers and simplifying the overall device structure while maintaining both sensing and viewing angle control functions
Solution Approach 2:
The single layer structure performs multiple functions: it serves as both the input sensing layer and the viewing angle control layer. The light control patterns provide viewing angle control while the electrode patterns enable input sensing, making this layer a multi-functional component that replaces what would traditionally require separate layers
2Ease of manufacture
If light control patterns are not directly connected to electrode patterns, then manufacturing flexibility is improved, but floating and separation issues occur reducing driving efficiency
Solution Approach 1:
The light control patterns and electrode patterns are formed as integrated structures within the same layer, with direct connections between them. This merging eliminates floating issues and separation problems while maintaining manufacturing feasibility through simultaneous pattern formation processes
Data Source
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AI summary
A display device includes a substrate including a light emitting area, a light emitting element in the light emitting area on the substrate, an encapsulation layer on the substrate and covering the light emitting element, a light transmission pattern on the encapsulation layer, a light control pattern on the encapsulation layer to surround a side surface of the light transmission pattern, a first electrode pattern on the encapsulation layer to be spaced apart from the light emitting area and to at least partially surround the side surface of the light transmission pattern, extending along a first direction, and directly connected to the light control pattern, and a second electrode pattern on the encapsulation layer to be spaced apart from the light emitting area, disposed to surround the side surface of the light transmission pattern, extending along a second direction, and directly connected to the light control pattern.