Mini LED Backlight Panel Splicing Gap Shadow Elimination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The splicing of Mini LED backlight panels in large-size LCD displays results in gaps between adjacent panels, leading to insufficient illumination and shadows due to the limited range of mini LEDs, affecting the display quality.
Innovation Solution
The design incorporates alternately disposed splicing teeth and grooves on the substrate body, with light-emitting units placed on the teeth, ensuring that the distance between the edge of the tooth and adjacent units is less than or equal to half the distance between regular units, allowing effective illumination of the gap and preventing shadows during panel splicing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple lamp panels are spliced together to form a large-size backlight, then the display size is increased, but splicing gaps appear between adjacent panels causing shadows and affecting display quality
Solution Approach 1:
The invention divides the backlight panel into modular segments with splicing teeth and grooves at the edges. Each panel is segmented independently, allowing multiple panels to be assembled into a large-size backlight while maintaining uniform light emission across joints through the integrated light-emitting units on the splicing structures.
Solution Approach 2:
The invention merges the splicing structure with the light-emitting function by placing light-emitting units directly on the splicing teeth. This combination ensures that the splicing gaps are illuminated by the light-emitting units located at the edges, eliminating shadows and achieving seamless visual效果 across multiple panels.
2Illumination intensity
If light-emitting units are arranged in a matrix on the substrate, then uniform illumination is achieved, but the limited illumination range cannot cover the splicing gap
Solution Approach 1:
The invention extends the illumination coverage by placing light-emitting units not only in the matrix on the substrate surface but also on the splicing teeth at the panel edges. This dimensional extension ensures that the illumination range covers the splicing gaps between panels, maintaining uniformity across the entire assembled backlight.
3Ease of manufacture
If splicing teeth and grooves are added to the substrate edge, then panel assembly is enabled, but the distance between light-emitting units increases at the splicing gap
Solution Approach 1:
The invention applies local quality by configuring light-emitting units specifically on the splicing teeth at the panel edges, with adjusted spacing relative to the matrix units. This local adjustment ensures that the pitch between light-emitting units remains consistent across the splicing gap, matching the regular matrix spacing and maintaining manufacturing precision.
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
This configuration ensures that the light-emitting units at the splicing gap can adequately illuminate the area, preventing shadows and enhancing the display effect by maintaining a consistent illumination across the panel seams.
Implementation Method 1
at least one light-emitting unit arranged on a first surface of the substrate body in a matrix, and disposed on the at least one splicing tooth
Data Source
AI summary
Disclosed a backlight lamp panel, a backlight module and a liquid crystal display. The backlight lamp panel includes a substrate body and at least one light-emitting unit, wherein at least one side edge of the substrate body is disposed with at least one splicing tooth and at least one splicing groove for accommodating a splicing tooth on other substrate body, the splicing tooth and the splicing groove are alternately disposed; and at least one light-emitting unit is arranged on a first surface of the substrate body in a matrix, and disposed on the splicing tooth. The substrate body is divided into at least one sub-region, each sub-region includes the light-emitting unit of at least one splicing tooth, and brightness of each sub-region is independently adjusted. A bottom of the splicing groove has a larger size than a notch of the splicing groove.