Scattering Particle Optical Sheet for LCD Cost Reduction
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Solution Overview
Problem
Conventional liquid crystal display apparatuses require multiple optical sheets to achieve desired optical performance, leading to increased manufacturing costs due to the complexity and number of components.
Innovation Solution
Incorporating a scattering particle optical sheet unit with scattering particles in the optical functional layer or base layer, which can include diffuser, prism, or microlens sheets, to enhance light uniformity and screen unintended images, thereby reducing the number of optical sheets needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple optical sheets are used to guarantee required optical performance, then optical performance is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple optical functions (diffusion, prism, microlens, and protection) into a single integrated optical sheet containing scattering particles. This merging eliminates the need for multiple separate optical sheets while maintaining all required optical performances, thereby reducing manufacturing complexity and cost.
Solution Approach 2:
The optical sheet with scattering particles performs multiple functions simultaneously: it diffuses light, creates prism effects, forms microlenses, and provides protection. This multi-functionality allows one component to replace several traditional optical sheets, reducing the overall number of components and manufacturing cost.
2Reliability
If multiple optical sheets are used to achieve desired optical performance, then optical performance is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple optical sheets into a single optical sheet structure. The scattering particles are embedded within one sheet that simultaneously provides diffusion, prism, and microlens functions, thereby reducing the number of discrete components and simplifying the overall device structure.
Solution Approach 2:
The optical sheet is constructed as a composite material system containing scattering particles distributed within a transparent matrix. This composite structure enables multiple optical functions to coexist in a single sheet, reducing device complexity while maintaining performance.
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 scattering particle optical sheet unit provides equivalent or improved optical performance with fewer sheets, resulting in reduced manufacturing costs and simplified designs.
Implementation Method 1
an optical sheet unit which presents an equivalent optical function as compared to a conventional liquid crystal display apparatus, while also reducing the number of optical sheet units
Data Source
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AI summary
A liquid crystal display apparatus according to an exemplary embodiment of the present inventive concept is provided the liquid crystal display apparatus includes a liquid crystal panel which displays images; backlight unit which provides light to the liquid crystal panel; and an optical sheet unit which is placed between the liquid crystal panel and backlight, wherein the optical sheet unit includes at least one scattering particle optical sheet where scattering particles are provided.