Stereoscopic Display Polarizer Regions Split Light Paths

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Solution Overview

Problem

Conventional stereoscopic display systems for liquid crystal displays require additional processing steps and equipment adjustments, increasing manufacturing costs and inconvenience, to achieve a stereoscopic effect.

Innovation Solution

A stereoscopic display system using inner and outer polarizers with alternately arranged polarization regions, where the first polarization regions of the inner polarizer have a polarization angle of α+90 degrees and the second regions have α degrees, and correspondingly arranged third and fourth polarization regions in the outer polarizer, allowing light beams to be split and rotated to create separate paths for left and right eye images without modifying the manufacturing process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional liquid crystal display screen uses an additional micro phase retardation film to achieve stereoscopic display effect, then the stereoscopic display function is improved, but the manufacturing complexity and production cost increase

Engineering Contradiction:
Improvestereoscopic display functionVSAvoidmanufacturing process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the function of the micro phase retardation film with the existing polarizer structure. By designing the polarizer to have multiple polarization regions (first polarization regions with polarization angle α+90° and second polarization regions with polarization angle α) that correspond to different pixel groups, the patent eliminates the need for a separate micro phase retardation film while maintaining the stereoscopic display function. This integration reduces manufacturing complexity and production cost.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The polarizer is designed to serve multiple functions simultaneously: it acts as both a polarizing element and a phase retardation element. The multiple polarization regions within the single polarizer structure enable it to differentiate between left eye and right eye images, providing both polarization filtering and phase delay functions that were previously required separate components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a conventional liquid crystal display screen uses an additional micro phase retardation film to achieve stereoscopic display effect, then the stereoscopic display function is improved, but the manufacturing cost increases

Engineering Contradiction:
Improvestereoscopic display functionVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent merges the function of the micro phase retardation film with the existing polarizer structure. By designing the polarizer to have multiple polarization regions (first polarization regions with polarization angle α+90° and second polarization regions with polarization angle α) that correspond to different pixel groups, the patent eliminates the need for a separate micro phase retardation film while maintaining the stereoscopic display function. This integration reduces manufacturing complexity and production cost.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the essential function of the micro phase retardation film and incorporates it into the polarizer structure. By taking out the separate micro phase retardation film component and integrating its phase delay function into the polarizer's polarization regions, the patent reduces the number of parts and simplifies the manufacturing process while maintaining the stereoscopic display capability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If conventional stereoscopic display systems use additional processing steps and equipment adjustments, then the stereoscopic effect is achieved, but the production equipment requirements increase

Engineering Contradiction:
Improvestereoscopic effectVSAvoidproduction equipment requirements
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the function of the micro phase retardation film with the existing polarizer structure. By designing the polarizer to have multiple polarization regions (first polarization regions with polarization angle α+90° and second polarization regions with polarization angle α) that correspond to different pixel groups, the patent eliminates the need for a separate micro phase retardation film while maintaining the stereoscopic display function. This integration reduces manufacturing complexity and production cost.

Inventive Principle:
Principle #5Merging (Combining)

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

Enables stereoscopic display without altering the manufacturing process or production equipment, simulating high-resolution visual effects by ensuring each eye receives a complete image through computational processing of pixel colors.

Implementation Method 1

The inner polarizer has a plurality of alternately arranged first and second polarization regions. The first polarization regions have a polarization angle of α+90 degrees. The second polarization regions have a polarization angle of α degrees.

Methodology Applied
Scientific EffectPolarization: Polarisation

Implementation Method 2

causing the light beam to pass through an inner polarizer having a plurality of alternately arranged first and second polarization regions, the first polarization regions having a polarization angle of α+90 degrees, the second polarization regions having a polarization angle of α degrees, the light beam passing through the inner polarizer being split into a plurality of (α+90)-degree polarized beam portions and a plurality of α-degree polarized beam portions in an alternating pattern

Methodology Applied
Scientific EffectLiquid crystal phase delay: Liquid Crystals

Data Source

PatentUS8009239B2Stereoscopic display device, system and method
Publication Date: 2011.08.30 WISTRON CORP
  • US8009239B2 patent drawing
  • US8009239B2 patent drawing
  • US8009239B2 patent drawing

AI summary

A stereoscopic display device includes an inner polarizer, an outer polarizer, and a display substrate panel interposed between the inner and outer polarizers. The inner polarizer has first and second polarization regions arranged alternately and having a 90-degree polarization angle difference. The outer polarizer has third and fourth polarization regions corresponding in position to the first and second polarization regions. The third and first polarization regions have a 90-degree polarization angle difference. The fourth and second polarization regions have a 90-degree polarization angle difference. Light passing through the first polarization regions, the display substrate panel, and the third polarization regions can pass through one lens of a pair of stereoscopic glasses, whereas light passing through the second polarization regions, the display substrate panel, and the fourth polarization regions can pass through the other lens of the stereoscopic glasses.