Mini LED Backlight Assembly: Taller Isolation Walls for Easy Maintenance
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Solution Overview
Problem
Existing Mini LED display technologies require complex molding processes to protect light-emitting elements, which are sensitive to static electricity and pressure, leading to high repair costs and uneven light emission, and complicating maintenance.
Innovation Solution
A backlight assembly with isolation walls on the substrate that are taller than the light-emitting elements, spaced apart to avoid the need for molding, allowing for easier maintenance and preventing damage during assembly processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If molding processes are used to protect light-emitting elements, then the light-emitting elements are protected from damage, but the production process becomes complex and maintenance costs increase
Solution Approach 1:
The patent introduces isolation walls as intermediary structures between adjacent light-emitting elements. These walls act as protective barriers that prevent direct contact and potential damage between elements during assembly and operation, eliminating the need for complex molding processes while maintaining element protection.
Solution Approach 2:
The patent divides the backlight assembly into isolated units by introducing isolation walls between adjacent light-emitting elements. This segmentation approach allows each element to be independently protected and maintained, simplifying the overall production process while ensuring individual element safety.
2Reliability
If molding processes are used to protect light-emitting elements, then damage prevention is achieved, but maintenance becomes more difficult and costly
Solution Approach 1:
By segmenting the assembly with isolation walls, each light-emitting element becomes an independent, accessible unit. This segmentation enables easy maintenance and repair without requiring complex disassembly of molded structures, directly improving ease of repair while maintaining damage prevention.
Solution Approach 2:
The isolation walls serve as protective intermediaries that prevent damage during normal operation but do not hinder access during maintenance. This mediator approach allows the system to simultaneously achieve damage prevention and ease of repair by providing protection during operation while maintaining accessibility during servicing.
3Area of stationary object
If isolation walls are placed close to light-emitting elements, then space is optimized, but light emission becomes uneven
Solution Approach 1:
The patent applies local quality by making the isolation walls transparent specifically in the regions adjacent to light-emitting elements. This local transparency ensures uniform light emission in critical areas while maintaining the structural and isolating functions of the walls in other regions, thus optimizing both space utilization and light emission uniformity.
Solution Approach 2:
The patent utilizes optical property changes by making the isolation walls transparent. This transparency allows light to pass through uniformly without being blocked or distorted by the isolation structures, ensuring consistent light emission while maintaining compact spacing between elements.
Data Source
AI summary
The present disclosure relates to a backlight assembly and a display device. The backlight assembly includes: a substrate; a plurality of light-emitting elements for emitting light, wherein the plurality of light-emitting elements are disposed on the substrate; and an isolation wall disposed on the substrate, wherein, the light-emitting elements and the isolation wall are spaced apart from each other on the substrate; a height of the isolation wall is greater than a height of the light-emitting element in a first direction which is a direction of thickness of the substrate. The present disclosure does not require the process of adding molding parts on the substrate by disposing the isolation wall on the substrate. The isolation wall and the light-emitting elements are spaced apart from each other to facilitate subsequent replacement and maintenance. The height of the isolation wall is greater than the height of the light-emitting element, the isolation wall is in contact with the diffusion plate or isolation plate in the subsequent process, which can prevent the diffusion plate or isolation plate from damaging the surface of the light-emitting element, that is, the LED lamp bead, in the subsequent process and improve production yield.