Resin Substrate Liquid Crystal Cell with Optical Compensation Layer
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Solution Overview
Problem
Conventional liquid crystal displays using glass substrates face challenges in reducing thickness, weight, and cost, while also struggling to control optical characteristics due to the inferior smoothness and heat resistance of resin substrates.
Innovation Solution
A liquid crystal cell substrate with a resin substrate and an optical compensation layer having a refractive index distribution of nx>ny>nz, where the optical compensation layer is formed by applying a material to the resin substrate or a different base substrate, allowing for easier control of optical characteristics and elimination of the need for additional optical compensation cells or films.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a glass substrate is used for a liquid crystal panel, then smoothness and heat resistance are improved, but thickness, weight, and cost increase
Solution Approach 1:
The invention uses a composite structure consisting of a resin substrate and an optical compensation layer with specific refractive index distribution (nx≥ny>nz). This composite material approach allows the resin substrate to provide lightweight properties while the optical compensation layer compensates for the inferior optical characteristics of resin materials, achieving both weight reduction and maintained optical performance.
Solution Approach 2:
The invention changes the optical parameters by introducing an optical compensation layer with a specific refractive index distribution (nx≥nymy>nz). This parameter change compensates for the inherent optical deficiencies of resin substrates, allowing resin materials to replace glass while maintaining required optical characteristics.
2Weight of stationary object
If a resin substrate is used to reduce weight and cost, then weight and cost decrease, but optical characteristics become difficult to control
Solution Approach 1:
The invention combines a resin substrate with an optical compensation layer that has a specifically designed refractive index distribution (nx≥nymy>nz). This composite structure allows the resin substrate to provide weight and cost advantages while the optical compensation layer provides precise control over optical characteristics, resolving the contradiction between weight reduction and optical control.
Solution Approach 2:
The invention applies a specialized optical compensation layer with specific local optical properties (refractive index distribution nx≥nymy>nz) to compensate for the general optical deficiencies of resin substrates. This local quality enhancement allows precise optical control in the critical optical path while maintaining the overall lightweight structure.
3Reliability
If additional optical compensation cells or films are provided to achieve desired optical characteristics, then optical characteristics are improved, but device complexity and thickness increase
Solution Approach 1:
The invention merges the substrate function and optical compensation function into a single integrated structure. The optical compensation layer is directly formed on the resin substrate, combining what were previously separate components (substrate and optical compensation film) into one unified assembly, thereby reducing structural complexity and eliminating the need for additional optical compensation cells.
Solution Approach 2:
The resin substrate with the integrated optical compensation layer serves multiple functions simultaneously: it provides the structural base, enables weight reduction, and delivers precise optical characteristics. This multi-functional design eliminates the need for separate optical compensation components, reducing overall device complexity.
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 reduces the thickness and weight of liquid crystal cell substrates, panels, and displays while enabling precise control over optical characteristics, enhancing display performance and reducing manufacturing complexity.
Implementation Method 1
the optical compensation layer has a refractive index distribution satisfying nx≥nymy>nz
Data Source
AI summary
The present invention provides a liquid crystal cell substrate, a liquid crystal panel, and a liquid crystal display whose thicknesses and weights can be reduced and optical characteristics at the time of producing them are easily controlled. The liquid crystal cell substrate 10 of the present invention is a liquid crystal cell substrate including a resin substrate 11 and an optical compensation layer 12, and the optical compensation layer 12 is laminated on the resin substrate 11. The optical compensation layer 12 has a refractive index distribution satisfying nx≧ny>nz, and the optical compensation layer 12 is formed by applying a material for forming an optical compensation layer to the resin substrate 11 or a base substrate that is different from the resin substrate 11.