Mini LED Light Panel Reflective Gel Layout for Brightness Uniformity
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Solution Overview
Problem
Existing mini LED light panels struggle to achieve high brightness performance and effective color rendering while concealing splicing lines, which are critical for display applications.
Innovation Solution
A mini LED light panel design incorporating reflective gels with specific dimensions and beam angles, along with defined light replenishment sections, enhances luminosity by reflecting light efficiently and concealing splicing lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If mini LED light panels use traditional backlight or direct light source structures, then the basic lighting function is achieved, but high brightness performance and effective color rendering cannot be simultaneously achieved
Solution Approach 1:
The patent segments the backlight structure into multiple independent mini LED light panels arranged in a matrix, where each panel contains multiple LED units with different emitting colors (red, green, blue). This segmentation allows independent optimization of each LED unit's characteristics while achieving overall high brightness and accurate color rendering through the combined output of all units.
Solution Approach 2:
The patent applies local quality by filling reflective gel specifically in the light replenishment sections between adjacent LED units, rather than uniformly across the entire panel. This localized application enhances light reflection and brightness in critical areas where light distribution needs improvement, while maintaining manufacturing feasibility.
2Area of stationary object
If mini LED light panels are arranged in a matrix configuration, then display area is increased, but splicing lines become visible affecting display quality
Solution Approach 1:
The patent converts the harmful effect of visible splicing lines into a beneficial feature by filling the gaps between adjacent light panels with reflective gel. This reflective material not only conceals the splicing lines from view but also reflects light into the gap areas, transforming what was previously a visual defect into a light-enhancing feature that improves overall brightness uniformity.
3Illumination intensity
If reflective gel is added to enhance luminosity, then brightness is improved, but device complexity increases
Solution Approach 1:
The patent applies reflective gel selectively only in the light replenishment sections between adjacent LED units, rather than throughout the entire panel. This localized approach enhances luminosity in the specific areas where light distribution needs improvement while minimizing the added complexity and material usage.
Solution Approach 2:
The reflective gel serves multiple functions simultaneously: it conceals splicing lines between panels, reflects light into gap areas to improve brightness uniformity, and acts as an optical interface material. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.
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 design achieves improved brightness and color accuracy by minimizing light interference and visually hiding splicing lines, resulting in enhanced display performance.
Implementation Method 1
filled with reflective gel to enhance luminosity... achieve the brightness gain by reflection
Data Source
AI summary
A mini LED light panel used as display and filled with reflective gel to enhance luminosity and a mini LED display of the light panel are disclosed. The light panel includes a substrate, an LED unit, first and second reflective gels. The LED unit includes LEDs having a beam angle greater than or equal to 90 degrees. The LEDs have a length of 25˜500 μm along the X-axis and Y-axis, and a length more than 10 μm along the Z-axis, and the length along the Y-axis is greater than or equal to the length along the X-axis. Each LED unit includes a first light replenishment section formed and sandwiched by the LEDs, and second and third light replenishment sections formed and sandwiched by the LED units adjacent to the X-axis and Y-axis respectively. Therefore, a brightness compensation gain effect with “strong reflection and low interference” can be achieved.