Integrated Optical Plate for Uniform LCD Backlight Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional backlight units for liquid crystal displays require separate light guiding plates and optical sheets, resulting in a complex configuration and increased production costs due to the need for multiple components to guide and diffuse light effectively.
Innovation Solution
An optical plate is developed that integrates a light guiding plate with a base film and a light collecting pattern made of UV curing resin, which connects the light guiding plate to the base film, providing a larger contact area with the base film than with the light guiding plate, and includes light diffusing beads to diffuse light uniformly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If separate light guiding plate and optical sheets are used, then light guidance and diffusion functions are achieved, but device complexity and production cost increase
Solution Approach 1:
The patent merges the light guiding plate and optical sheets into a single integrated optical plate. The optical plate includes a light guiding plate portion and a base film portion connected through a light collecting pattern, combining light guidance and light diffusion functions in one component. This eliminates the need for separate optical sheets while maintaining both light guidance and diffusion capabilities.
2Ease of manufacture
If multiple separate components are used, then light guidance and diffusion are achieved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple optical components into a single optical plate that can be manufactured as one integrated unit. The light guiding plate portion and base film portion are connected through a light collecting pattern formed by jetting liquid resin and curing it with UV light, creating a unified structure that simplifies manufacturing processes and reduces production costs while ensuring uniform light distribution.
3Productivity
If light guiding plate and optical sheets are separate, then assembly is flexible, but production efficiency decreases
Solution Approach 1:
The patent integrates the light guiding plate and optical sheets into a single optical plate component, eliminating the need for separate assembly steps. The optical plate is manufactured as one piece with the light guiding plate portion and base film portion connected through the light collecting pattern, significantly improving production efficiency by reducing the number of components and assembly operations required.
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 integrated optical plate simplifies the configuration by guiding and collecting light simultaneously, reducing the need for additional optical films and enhancing light distribution without sacrificing brightness, thereby lowering production costs and improving light uniformity.
Implementation Method 1
The liquid resin comprises an ultraviolet (UV) curing resin, and the light collecting pattern is cured by ultraviolet rays
Data Source
AI summary
A method of manufacturing an optical plate, includes forming a protrusion on a base film by jetting ink containing a liquid resin on the base film, contacting a light guiding plate to the protrusion, and curing the protrusion which contacts with the light guiding plate.