Conductive Member Bent Part for Electrostatic Discharge in Display Modules
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Solution Overview
Problem
The existing methods for discharging electrostatic charges from the color filter substrate in TFT-LCD displays are inefficient due to the high defect rate and poor adhesion of conductive adhesive tapes, leading to decreased display quality.
Innovation Solution
A display module with a conductive member having a bent part that connects the transparent conductive layer on the color filter substrate to a conductive back plate through openings in a glue frame, ensuring secure attachment and effective discharge of electrostatic charges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive adhesive tape is artificially adhered to connect the transparent conductive layer and back plate, then electrostatic charge discharge is enabled, but the adherence is time and labor consuming with low accuracy and high defect rate
Solution Approach 1:
The patent replaces the manual mechanical adherence process with an automated conductive member structure. The conductive member with bent parts automatically connects the transparent conductive layer to the back plate through elastic deformation, eliminating the need for artificial adhesive tape application and achieving both reliable electrostatic discharge and high manufacturing efficiency.
Solution Approach 2:
The patent changes the physical state and properties of the conductive connection by using a conductive member with bent parts that utilize elastic deformation. This transforms the connection from a static adhesive bond to a dynamic elastic connection that maintains reliable contact while enabling automated assembly, thus improving both reliability and productivity.
2Reliability
If conductive adhesive tape is used to connect the transparent conductive layer and back plate, then electrostatic charge discharge is enabled, but the conductive adhesive tape is easily fallen off especially in heat circumstance
Solution Approach 1:
The patent replaces the thermal-sensitive adhesive tape with a mechanically-based elastic connection system. The conductive member with bent parts maintains stable electrical contact through elastic deformation, which is not affected by heat, thus ensuring both reliable electrostatic discharge and stable adhesion under thermal conditions.
Solution Approach 2:
The bent parts of the conductive member are designed in advance to provide elastic cushioning that compensates for thermal expansion and contraction. This pre-designed elastic structure maintains stable contact between the transparent conductive layer and back plate even in heat circumstances, preventing the connection failure that occurs with adhesive tape.
3Manufacturing precision
If conductive adhesive tape is manually adhered with small operation space, then connection between transparent conductive layer and back plate is achieved, but the operation is time and labor consuming with low accuracy
Solution Approach 1:
The patent replaces the manual adherence operation with an automated elastic connection mechanism. The conductive member with bent parts can be automatically positioned and deformed to establish precise electrical connections, eliminating the time-consuming manual process while achieving high manufacturing precision through the inherent elasticity and geometric design of the bent parts.
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 solution provides excellent electrostatic charge discharge, reducing defects and improving display quality by ensuring the conductive member remains securely attached, preventing adverse effects from static electricity.
Implementation Method 1
the conductive member may be made of metal material... the electrostatic charges on the color filter substrate may be discharged excellently through the conductive member
Data Source
AI summary
The invention provides a display module and a display device. The display module comprises a display panel, a backlight module and a glue frame, wherein the display panel comprises a color filter substrate, a light-outputting surface of which is provided with a transparent conductive layer thereon; the backlight module comprises a back plate, which is formed of conductive material; and the glue frame is provided between the display panel and the back plate, and wherein the glue frame is provided with a first opening therein; and the display module comprises a conductive member with a first bent part, a first end of which is attached to the conductive layer by passing through the first opening, a second end of which opposite to the first end is attached to the back plate through the first bent part. The invention can improve the display quality of the display device.