Light Diffusing Component with Gradient Transmittance Reflecting Portion
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Solution Overview
Problem
Existing light diffusing components in liquid crystal displays with protruding portions lead to uneven brightness due to light absorption and reduced reflection, causing a decrease in brightness towards the edges of the visible area.
Innovation Solution
A light diffusing component with a main body and protruding portion, featuring a reflecting portion with gradually increasing light transmittance and uniformly arranged reflection points that decrease in size and density away from the center, ensuring uniform light emission and brightness across the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If protruding portions are added to fix and position the light diffusing component, then positioning accuracy is improved, but brightness uniformity deteriorates
Solution Approach 1:
The patent applies local quality by creating different surface properties at different locations. The reflecting portion has high reflectivity while the light emitting portion has low reflectivity (directly transmits light). This local differentiation allows the protruding portions to be positioned without creating brightness non-uniformity, as the light emitting portions transmit light directly rather than reflecting it, eliminating the brightness reduction problem caused by conventional protruding portions.
2Manufacturing precision
If light shielding tape or fixing tape is used for positioning, then positioning accuracy is improved, but light utilization efficiency deteriorates
Solution Approach 1:
The patent extracts the positioning function from external tapes and integrates it directly into the light diffusing component structure through protruding portions. This eliminates the need for light shielding tape or fixing tape, removing the source of light absorption and improving light utilization efficiency while maintaining positioning accuracy through the integrated structural design.
Solution Approach 2:
The patent introduces a reflecting portion as an intermediary element that mediates between the protruding portions and the light paths. This reflecting portion redirects light that would otherwise be blocked or absorbed, converting a potentially harmful structural element into a useful light-guiding feature that maintains both positioning functionality and light efficiency.
3Device complexity
If conventional protruding portions are used without special treatment, then device complexity is reduced, but brightness uniformity deteriorates
Solution Approach 1:
The patent makes the protruding portions multi-functional: they serve both as positioning structures and as part of the light guiding system through the reflecting portion. This universal design allows the same structural element to fulfill multiple functions without increasing overall device complexity, while the differentiated surface properties ensure brightness uniformity is maintained.
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 addresses the issue of uneven brightness by optimizing light reflection and transmittance, ensuring consistent light distribution and improved visibility across the display device.
Implementation Method 1
a reflecting portion, disposed on the protruding portion and an edge region of the main body connected to the protruding portion, so as to reflect light incident from a lower portion of the light diffusing component
Data Source
AI summary
The present disclosure relates to a field of display technologies and provides a light diffusing component, a backlight component having the same, and a display device. The light diffusing component may include a main body, a protruding portion, and a reflecting portion. The protruding portion is disposed on a side of the main body and protruded from the main body; the reflecting portion is disposed on the protruding portion and an edge region of the main body portion connected to the protruding portion, so as to reflect light incident from a lower portion of the light diffusing component. Light transmittance of the reflecting portion gradually increases in a direction away from a center of the diffusing component.