Backlight Module Rivet Assembly for Mini LED Static Discharge
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Solution Overview
Problem
Mini LED displays face issues with static electricity accumulation on the light plate, leading to damage of LEDs and reduced service life due to the insulating nature of the double-sided adhesive used to fix the light plate to the back plate.
Innovation Solution
The introduction of an electrostatic assembly connected to rivet posts on both the light plate and the back plate creates a conductive path for static electricity to be dissipated from the light plate to the back plate, thereby enhancing electrostatic protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If double-sided adhesive is used to fix the light plate to the back plate, then the light plate is securely fixed, but static electricity cannot be released and LED damage occurs
Solution Approach 1:
The fixing system is segmented into two distinct components: double-sided adhesive for securing the light plate and rivet posts for electrostatic discharge. This segmentation allows each component to perform its specialized function without compromise - the adhesive provides bonding strength while the conductive rivet posts provide electrostatic protection pathways.
Solution Approach 2:
The rivet posts serve as an intermediary conductive element between the light plate and back plate. These metal rivet posts penetrate through the insulating double-sided adhesive layer, creating a dedicated conductive pathway that allows static electricity to discharge from the light plate to the back plate without compromising the insulating properties of the adhesive itself.
2Ease of manufacture
If double-sided adhesive is used to fix the light plate, then installation is simple, but electrostatic discharge capability is lost
Solution Approach 1:
The electrostatic protection function is segmented as a separate feature implemented through rivet posts, distinct from the bonding function performed by the double-sided adhesive. This allows the adhesive to maintain its insulating properties while the rivet posts provide the necessary conductive pathway for static electricity discharge.
Solution Approach 2:
The fixing system uses a composite structure combining insulating double-sided adhesive material with conductive metal rivet posts. This composite approach allows the system to simultaneously exhibit both insulating properties (from the adhesive) and conductive properties (from the rivet posts), resolving the contradiction between simple installation and electrostatic protection.
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 solution effectively prevents static electricity accumulation on the light plate, reducing the risk of LED damage and extending the service life of Mini LED displays by ensuring efficient electrostatic discharge.
Implementation Method 1
The electrostatic assembly is connected to the first rivet post and the second rivet post at the same time, so as to conduct the first rivet post and the second rivet post with each other
Data Source
AI summary
A backlight module and a display device are disclosed. The backlight module includes a back plate and at least one light plate fixed onto the back plate. At least one first rivet post is disposed on a side of the light plate facing the back plate. The first rivet post penetrates the back plate and protrudes from a back side of the back plate. At least one second rivet post is disposed on the back side of the back plate. The second rivet post is arranged side by side with the first rivet post. The backlight module further includes an electrostatic assembly, which is connected to both the at least one first rivet post and the at least one second rivet post and conducts the at least one first rivet post and the at least one second rivet post with each other.