Liquid Crystal Lenticular Lens Single Electrode Design

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Solution Overview

Problem

Conventional liquid crystal lenticular lens stereoscopic display devices require multiple power sources to achieve the lens effect, leading to increased power burden and limited design possibilities.

Innovation Solution

A liquid crystal lenticular lens design with a first substrate, a second substrate, a liquid crystal layer having ordinary and extraordinary refractive indices, and electrode units with specific distances and pitches, allowing for a reduced number of power sources while maintaining the lens effect similar to an ideal lens.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional liquid crystal lenticular lens uses multiple electrodes with different voltages to achieve lens effect, then the lens effect is improved, but the number of power sources increases and design possibilities are limited

Engineering Contradiction:
Improvelens effectVSAvoidnumber of power sources
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple electrode functions into a single electrode structure. The single electrode is designed with specific geometric patterns (curved lines with varying distances from the center) that enable different regions to create different lens effects simultaneously, eliminating the need for multiple separate electrodes and power sources while maintaining the lens effect.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent applies local quality by creating regions within the single electrode that have different properties. The electrode contains multiple curved lines at different distances from the center, where each region creates a specific lens effect. The distance from the center determines the lens effect strength, allowing different parts of the electrode to serve different optical functions.

Inventive Principle:
Principle #3Local quality

2Reliability

If conventional liquid crystal lenticular lens uses thirteen electrodes arranged with 1:1 gap ratio, then the lens effect is achieved, but the power source burden increases

Engineering Contradiction:
Improvelens effectVSAvoidpower source burden
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent merges the function of thirteen separate electrodes into a single electrode structure with optimized geometric patterns. This consolidation reduces the number of power sources from thirteen to one, significantly reducing the power source burden while maintaining the lens effect through carefully designed curved line patterns.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If conventional liquid crystal lenticular lens uses multiple electrodes with varying voltages, then different lens effects are achieved, but the number of electrodes in each unit increases

Engineering Contradiction:
Improvelens effect variationVSAvoidnumber of electrodes
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent uses local quality by creating regions within the single electrode that produce different lens effects. The curved lines are positioned at different distances from the center, with each distance creating a specific lens effect. This allows the single electrode to provide the adaptability of multiple electrodes while reducing the electrode count.

Inventive Principle:
Principle #3Local 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

The solution reduces the number of power sources required, decreases the number of electrodes in each unit, and broadens design possibilities while achieving a vivid three-dimensional stereoscopic image.

Implementation Method 1

the liquid crystal layer has an ordinary refractive index and an extraordinary refractive index

Methodology Applied
Scientific EffectRefraction: Refraction

Implementation Method 2

the liquid crystal layer has an ordinary refractive index and an extraordinary refractive index

Methodology Applied
Scientific EffectLiquid crystal optical anisotropy: Birefringence

Implementation Method 3

different voltages are necessary to be applied to the electrodes 36a of the electrode unit respectively. Common voltage is applied to the planar electrode 40. Since voltage varies in different horizontal surface of the liquid crystal layer 38, the liquid crystal molecules in different horizontal surface tend to orient differently—rotate and orient themselves following the electric-field lines—so as to achieve lens effect

Methodology Applied
Scientific EffectElectric field effect on liquid crystal: Electric Field

Data Source

PatentUS8982312B22D and 3D switchable display device and liquid crystal lenticular lens thereof
Publication Date: 2015.03.17 AU OPTRONICS CORP
  • US8982312B2 patent drawing
  • US8982312B2 patent drawing
  • US8982312B2 patent drawing

AI summary

The present invention provides a liquid crystal lenticular lens including a first substrate, a second substrate, a liquid crystal layer, two first electrodes, two second electrodes, and a common electrode. The second substrate and the first substrate are disposed opposite to each other. The liquid crystal layer is disposed between the first substrate and the second substrate, and the liquid crystal layer has an ordinary refractive index and an extraordinary refractive index. The first electrodes and the second electrodes are disposed between the first substrate and the liquid crystal layer, and the second electrodes are disposed between the first electrodes. The common electrode is disposed between the second substrate and the liquid crystal layer.