Concave Convex Diffusion Component for Flat Panel Display Luminance
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Solution Overview
Problem
Existing flat panel display devices, such as LCDs, face challenges in achieving luminance uniformity due to the inefficiencies of gaps and diffusers between light emitting components and the LCD panel, which also result in undesirable device sizing.
Innovation Solution
A flat panel display assembly that includes a substrate with light emitting components and diffusion components having concave and convex surfaces, coupled with a diffusion layer, to diffuse light uniformly before it enters the LCD panel, optimizing luminance uniformity while maintaining a compact size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If gaps and diffusers are used between LEDs and LCD panel, then light diffusion is improved, but device size increases
Solution Approach 1:
The patent combines the gap and diffuser functions into a single integrated diffusion component with concave and convex surfaces. This component is positioned directly against the LCD panel, eliminating the need for separate gaps and diffusers, thereby reducing device size while maintaining light diffusion performance.
Solution Approach 2:
The diffusion component features curved concave and convex surfaces that guide and diffuse light effectively. The curvature of these surfaces enables efficient light scattering without requiring additional space, resolving the contradiction between luminance uniformity and device size.
2Illumination intensity
If traditional gap and diffuser configuration is used, then light diffusion is achieved, but manufacturing complexity increases
Solution Approach 1:
By merging the gap and diffuser into a single integrated component, the patent reduces the number of parts and assembly steps. This single component is manufactured as one piece with built-in concave and convex surfaces, simplifying the manufacturing process while achieving the same light diffusion effect.
3Illumination intensity
If multiple separate components are used for light diffusion, then luminance uniformity is improved, but device complexity increases
Solution Approach 1:
The patent consolidates multiple functional elements (gap and diffuser) into a single diffusion component with integrated concave and convex surfaces. This reduces the total number of components in the optical path while maintaining effective light diffusion and luminance uniformity.
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 enhances luminance uniformity by diffusing light effectively through the use of concave and convex diffusion components and a diffusion layer, improving image clarity and reducing manufacturing costs by using simple, uniformly thick components made from the same material.
Implementation Method 1
at least one diffusion component having concave and convex opposing surfaces... configured to diffuse light emitted from the at least some of the plurality of light emitting components as the light propagates therethough
Implementation Method 2
a diffusion layer coupled to the substrate such that the convex surface of each of the at least one diffusion component is between the concave surface thereof and the diffusion layer and configured to further diffuse the light that propagates through the at least one diffusion component
Data Source
AI summary
A flat panel display assembly and a method for constructing a flat panel display assembly are provided. The flat panel display assembly includes a substrate, a plurality of light emitting components mounted to the substrate, at least one diffusion component having concave and convex opposing surfaces. Each of the diffusion components is coupled to the substrate such that the concave surface thereof is between at least some of the plurality of light emitting components and the convex surface thereof. The at least one diffusion component is configured to diffuse light emitted from the at least some of the plurality of light emitting components as the light propagates therethough. A diffusion layer is coupled to the substrate such that the convex surface of each of the at least one diffusion component is between the concave surface thereof and the diffusion layer and configured to further diffuse the light that propagates through the at least one diffusion component.