Fluoride Resin Anti-Static Member for Display Backlight ESD Protection
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Solution Overview
Problem
Liquid crystal display devices are prone to defects due to electrostatic discharge (ESD) between the bottom chassis and the backlight unit, and there is a need for improved chemical resistance, heat resistance, and insulation properties to enhance reliability.
Innovation Solution
A display device design incorporating a light source unit, a light guide plate, and an anti-static electricity member made of fluoride resin, which includes polytetrafluoroethylene (PTFE), perfluoroalkoxy (PFA), fluorinated ethylene propylene (FEP), or ethylene tetrafluoroethylene (ETFE), applied between the bottom chassis and the light source unit to prevent ESD and provide excellent insulation, chemical, and heat resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional backlight unit structure is used without anti-static protection, then the device structure is simple, but electrostatic discharge defects occur between the bottom chassis and light source unit
Solution Approach 1:
An anti-static electricity member is introduced as an intermediary component between the bottom chassis and the light source unit. This member includes a fluoride resin layer that provides electrostatic protection while maintaining structural simplicity. The fluoride resin acts as a mediator that prevents harmful ESD effects without requiring complex shielding or grounding systems.
2Reliability
If standard insulation materials are used between the bottom chassis and light source unit, then the device structure is simple, but chemical resistance, heat resistance, and insulation properties are insufficient
Solution Approach 1:
The anti-static electricity member is constructed as a composite material system including a fluoride resin (such as PTFE, PFA, FEP, or ETFE) combined with adhesive layers and optionally metal layers. This composite structure provides superior chemical resistance, heat resistance, and electrical insulation properties compared to standard insulation materials, while maintaining ease of manufacturing through layer-by-layer construction.
3Reliability
If no anti-static member is provided, then the manufacturing process is simple, but electrostatic discharge causes defects in the liquid crystal display device
Solution Approach 1:
The fluoride resin is applied as a thin film or coating layer on the bottom chassis or light source unit, rather than requiring rigid anti-static shields or complex protective structures. This thin film approach provides effective ESD protection while maintaining manufacturing simplicity and compatibility with existing production processes.
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 anti-static electricity member effectively prevents defects caused by ESD, enhances chemical and heat resistance, and improves the overall reliability of the display device by ensuring effective insulation between the bottom chassis and the light source unit.
Implementation Method 1
an anti-static electricity member including a fluoride resin and contacting the bottom chassis
Implementation Method 2
the invention also provides a display device having excellent chemical resistance properties, heat resistance properties, insulation properties, and waterproof properties
Implementation Method 3
the invention also provides a display device having excellent chemical resistance properties, heat resistance properties, insulation properties, and waterproof properties
Data Source
AI summary
A display device includes a light source unit, a light guide plate including a light incident surface, an opposite surface, a light exit surface, and a light exit rear surface, a display panel provided on the light exit surface, a bottom chassis for housing the light guide plate, and an anti-static electricity member including a fluoride resin and contacting the bottom chassis, where the bottom chassis includes a bottom section and a sidewall section perpendicularly connected from the bottom section, and the sidewall section includes a first sidewall section more adjacent close to the light incident surface than the opposite surface, a second sidewall section, a third sidewall section, and the fourth sidewall section, and the anti-static electricity member is provided between the first sidewall section and the light source unit and contacting at least a portion of the first sidewall section.