Electro-Optical Device Light-Shielding Layer Viewing Range
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Solution Overview
Problem
Existing electro-optical devices face challenges in extending the suitable viewing range due to the limitations imposed by the thickness of the glass substrate, which affects the distance between the organic EL element and the liquid crystal elements, leading to reduced yield, increased production time, and decreased quality.
Innovation Solution
The introduction of a light-shielding layer between the second substrate and the light-emitting layer, which reduces the distance between the pixels and the light-shielding layer, allowing for directional display in multiple directions and easy extension of suitable viewing ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the thickness of the glass substrate is reduced to extend the suitable viewing range, then the distance L between the organic EL element and the liquid crystal elements is reduced, but the strength of the substrate is reduced leading to reduced yield, increased production time, and reduced quality
Solution Approach 1:
A light-shielding layer is introduced as an intermediary component between the organic EL element and the liquid crystal elements. This layer serves multiple functions: it shields light in specific directions to enable directional display, and it provides structural support that allows the glass substrate to maintain adequate thickness for strength while still achieving the desired reduction in distance L for extended viewing ranges.
2Length of moving object
If the thickness of the glass substrate is reduced to extend the suitable viewing range, then the distance L is reduced, but the yield is reduced and production time is increased
Solution Approach 1:
The light-shielding layer acts as a mediator that enables the system to achieve extended viewing ranges without compromising substrate thickness. By placing this layer between the organic EL element and liquid crystal elements, the design maintains structural integrity and manufacturing feasibility while achieving the optical performance needed for broader viewing angles.
3Length of moving object
If the thickness of the glass substrate is reduced to extend the suitable viewing range, then the distance L is reduced, but the quality is reduced
Solution Approach 1:
The light-shielding layer serves as a protective intermediary that allows the system to achieve reduced distance L for extended viewing ranges while maintaining substrate quality. This layer compensates for the potential weaknesses that would arise from thinner substrates, ensuring that the overall device quality and reliability are maintained.
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 configuration enables the display of images in multiple directions with improved viewing ranges, enhancing the display's efficiency and reducing production complexities, while maintaining the structural integrity and quality of the device.
Implementation Method 1
a light-shielding layer arranged between the second substrate and the light-emitting layer having an opening which is capable of transmitting light emitted from a first subpixel in the light-emitting layer through the second substrate to a first range and transmitting light emitted from the second subpixel of the light-emitting layer through the second substrate to a second range
Data Source
AI summary
An electro-optical device comprising a first substrate, a second substrate facing the first substrate, a light-emitting layer arranged between the first substrate and the second substrate which is capable of emitting light from a plurality of pixels including at least a first subpixel and a second subpixel, the first subpixel forming a first image and the second subpixel forming a second image, and a light-shielding layer arranged between the second substrate and the light-emitting layer having an opening which is capable of transmitting light emitted from a first subpixel in the light-emitting layer through the second substrate to a first range and transmitting light emitted from the second subpixel of the light-emitting layer through the second substrate to a second range.