Electro-Optical Device Microlens Condensation Design
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Solution Overview
Problem
Existing electro-optical devices with microlenses at both the light incident and emitting sides face challenges in suppressing light diffusion, leading to reduced display image quality due to unclear positional relationships and focal distance adjustments between these lenses.
Innovation Solution
The electro-optical device employs first condenser lenses with higher condensation degrees and closer proximity to the electro-optical material, and second condenser lenses with lower condensation degrees and greater distance, to effectively condense and emit light, enhancing light utilization efficiency and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If microlenses are provided at both the light incident side and the light emitting side, then light utilization efficiency is enhanced, but light diffusion occurs on the emitting side microlenses reducing image quality
Solution Approach 1:
The patent applies different focal distances to microlenses at different locations. Specifically, the light incident side microlenses have a first focal distance while the light emitting side microlenses have a second focal distance that is longer than the first focal distance. This local differentiation allows each microlense to be optimized for its specific function: the incident side microlenses focus light effectively onto the liquid crystal layer, while the emitting side microlenses prevent light diffusion without compromising image quality.
2Manufacturing precision
If focal distances of microlenses are adjusted to suppress light diffusion, then image quality may be improved, but the positional relationship between microlenses is not clearly defined leading to uncertain effectiveness
Solution Approach 1:
The patent specifies precise parameter relationships between microlenses at different locations. The key parameter change is the focal distance: incident side microlenses have a first focal distance while emitting side microlenses have a second focal distance that is explicitly defined as longer. This parameter differentiation provides clear design guidelines that ensure reliable light diffusion suppression while maintaining image quality.
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 allows for improved light condensation and emission, resulting in a brighter and higher-quality display image, particularly effective with light sources having large angle distributions like LEDs.
Implementation Method 1
first condenser lenses which are arranged at an incident side of the light and each of which is provided so as to correspond to each of the plurality of pixels
Implementation Method 2
second condenser lenses which are arranged at an emitting side of the light and each of which is provided so as to correspond to each of the plurality of pixels
Implementation Method 3
an electro-optical device which modulates light incident on a display region formed by a plurality of pixels and emits the light includes an electro-optical material
Data Source
AI summary
An electro-optical device includes an electro-optical material, a first lens which is arranged at an incident side of the light and is provided so as to correspond to a pixel, and a condenser lens which is arranged at an emitting side of the light and is provided so as to correspond to the pixel. Condensation degrees of the first lens are larger than that of the second lens, and distances between the first lens and the electro-optical material are smaller than distances between the second lens and the electro-optical material.