Mini LED Backlight Panel Splicing Gap Filling
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Solution Overview
Problem
Mini LED backlight panels experience dark lines and inconsistent hue at splicing positions due to warpage, unevenness, and light truncation, affecting light extraction quality.
Innovation Solution
A mini LED backlight panel design featuring a docking mechanism between sub-panels with a light-filling region filled with fluorescent powder or quantum dots, ensuring consistent color and brightness across the splicing area, and utilizing varying light emitting angles and heights to improve light extraction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple light plates are spliced together to achieve large size, then the backlight panel can reach larger dimensions, but dark lines appear at splicing positions due to warpage, unevenness, and light truncation
Solution Approach 1:
The backlight panel is divided into multiple sub-panels that can be spliced together to achieve large sizes. Each sub-panel contains LED light sources arranged in arrays, allowing modular construction while maintaining consistent optical performance across拼接 positions through standardized interfaces and optical design
Solution Approach 2:
A light filling layer is introduced as an intermediary component at the splicing positions between sub-panels. This layer fills the gaps and optical discontinuities caused by splicing, preventing dark lines and ensuring uniform light distribution across the entire large-area panel
2Area of stationary object
If multiple light plates are spliced together, then larger size is achieved, but hue inconsistency occurs at splicing positions affecting light extraction quality
Solution Approach 1:
The light filling layer is specifically applied at splicing positions with different optical properties than the main panel areas. This localized treatment addresses the specific problem of hue inconsistency at junctions while maintaining the overall uniformity of the backlight panel, ensuring that splicing positions match the color and brightness of surrounding regions
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 ensures a flat and uniform appearance by maintaining consistent hue and brightness at splicing positions, enhancing light extraction quality and enabling an ultra-thin backlight module design.
Implementation Method 1
The light-filling material is fluorescent powder or quantum dot particles
Implementation Method 2
a light-filling material is disposed in the light-filling region
Data Source
AI summary
A mini light emitting diode (LED) backlight panel is provided, which includes a plurality of backlight sub-panels in a docking way. A light-filling region is disposed between the arbitrary adjacent two backlight sub-panels. Fluorescent powder or quantum dots are filled in the light-filling region. The mini LED backlight panel emits light to excite material of the light-filling region to emit light. Secondly, adopting design solutions of large and small light emitting angles in mixed arrangement on different heights of the light emitting surfaces in the mini LED backlight panel, improving brightness on the splicing position, thereby improving quality of light emitted from the mini LED backlight panel, and meanwhile is advantageous for an ultra-thin design of the backlight module.