Optical Laminate Boundary Layout for 3D Crosstalk Suppression
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Solution Overview
Problem
Crosstalk occurs when using a patterned optical anisotropic layer with first and second phase difference regions arranged in a lattice configuration in high-definition 3D image display apparatuses.
Innovation Solution
An optical laminate with a patterned optical anisotropic layer having first and second phase difference regions with different in-plane slow axis directions, alternately disposed in perpendicular directions, and a boundary region width of 20 μm or less, along with an average interval of 60 μm or less between corner portions, is used to suppress crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a patterned optical anisotropic layer with lattice arrangement of first and second phase difference regions is used in high-definition 3D image display, then the apparent resolution is improved, but crosstalk occurs between right and left eye images
Solution Approach 1:
The patent applies local quality by creating a boundary region with distinct optical properties at the interface between first and second phase difference regions. This boundary region has a different in-plane slow axis direction compared to the adjacent phase difference regions, locally modifying the optical characteristics to prevent light leakage and crosstalk while maintaining the high apparent resolution achieved through the lattice arrangement of phase difference regions with different in-plane slow axis directions.
2Object-generated harmful factors
If the boundary region width is reduced to suppress crosstalk, then the manufacturing precision requirements increase
Solution Approach 1:
The patent specifies precise parameter ranges to balance crosstalk suppression with manufacturing feasibility. The boundary region width is controlled within 5 μm to 20 μm, and the interval between corner portions of adjacent phase difference regions is maintained at 40 μm to 60 μm. These parameter specifications provide clear manufacturing targets that enable effective crosstalk suppression while maintaining practical manufacturability through defined tolerances.
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 effectively reduces light leakage and crosstalk in high-definition 3D image display, enhancing the visual experience by minimizing interference between right and left eye images.
Implementation Method 1
a patterned optical anisotropic layer includes a first phase difference region and a second phase difference region having different in-plane slow axis directions
Implementation Method 2
the first phase difference region and the second phase difference region are alternately disposed in a first direction and a second direction perpendicular to the first direction, respectively, in the same plane
Implementation Method 3
the polarizing film consists of a light absorption anisotropic film that is formed of a composition including a dichroic substance and a liquid crystal compound
Data Source
AI summary
Provided are an optical laminate in which crosstalk during 3D image observation is suppressed where the optical laminate is applied to a high-definition display panel, a 3D image display apparatus and system. The optical laminate includes: a patterned optical anisotropic layer; and a polarizing film, in which the patterned optical anisotropic layer includes first and second phase difference regions having different in-plane slow axis directions and includes a boundary region positioned between the first and second phase difference regions, the first and second phase difference regions are alternately disposed in a first direction and second direction perpendicular to the first direction, in the same plane, a width of the boundary region is 20 μm or less, and an average interval between corner portions of adjacent regions as a phase difference region having a smaller area among the first and second phase difference regions is 60 μm or less.