Display Module One-Sided Conductive Rubber Pad ESD Protection
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Solution Overview
Problem
Display devices, particularly light receiving display devices, face challenges in managing electrostatic discharge and electromagnetic radiation generated by the display panel, which can lead to manufacturing complexities and increased costs.
Innovation Solution
A display module design incorporating a middle frame, an upper receiving frame, a one-sided conductive rubber pad, and conductive tape to effectively emit or block electrostatic discharge and electromagnetic radiation, with the one-sided conductive rubber pad having a conductive surface facing the display panel and a non-conductive surface contacting the upper receiving frame, and the conductive tape connecting the rubber pad to a lower receiving frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional backlight unit with light source package is used, then light can be supplied to the display panel, but electrostatic discharge and electromagnetic radiation are generated causing manufacturing complexities and increased costs
Solution Approach 1:
The patent extracts the light source package from the conventional backlight unit structure and relocates it to the lower receiving frame. This separation allows the light source to be positioned away from the display panel, reducing electromagnetic radiation and electrostatic discharge interference while maintaining light supply functionality. The light source package is now an independent component that can be manufactured and assembled separately, simplifying the overall manufacturing process.
Solution Approach 2:
The patent introduces a non-conductive rubber pad as an intermediary component between the upper receiving frame and the display panel. This rubber pad acts as a mediator that blocks electrostatic discharge and electromagnetic radiation while still allowing the structural support and positioning functions to be maintained. The intermediary component resolves the contradiction by providing protection without adding significant manufacturing complexity.
2Object-affected harmful factors
If protective measures against electrostatic discharge and electromagnetic radiation are added, then harmful factors are blocked, but manufacturing costs increase
Solution Approach 1:
The patent makes the receiving frames serve multiple functions: they provide structural support for the display panel, position the light source package, and block electrostatic discharge and electromagnetic radiation through their conductive and non-conductive components. By combining these functions into existing structural elements rather than adding separate protective components, manufacturing costs are minimized while achieving comprehensive protection.
Solution Approach 2:
The patent changes the electrical conductivity parameters of the receiving frame components. The upper receiving frame uses non-conductive material to block electrostatic discharge, while the lower receiving frame uses conductive material to ground and dissipate electromagnetic radiation. By optimizing the material parameters of existing components rather than adding expensive protective layers, the solution achieves protection at minimal cost.
3Illumination intensity
If the light source package is relocated to the lower receiving frame, then uniform light distribution is achieved, but the structure becomes more complex
Solution Approach 1:
The patent relocates the light source package from the conventional position (typically behind or integrated with the display panel) to the lower receiving frame, which is a different spatial dimension. This dimensional relocation allows the light to enter the display panel from below at an optimal angle, achieving uniform light distribution across the display area. The structural complexity is minimized because the lower receiving frame already exists as a support structure, so no additional complex mechanisms are needed.
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 design simplifies the manufacturing process and reduces costs by allowing efficient emission or blocking of electrostatic discharge and electromagnetic radiation, while ensuring the display module's protection and uniform light distribution.
Implementation Method 1
a one-sided conductive rubber pad located between the upper receiving frame and the display panel. The one-sided conductive rubber pad includes a conductive first surface and a non-conductive second surface facing each other
Implementation Method 2
efficient emission or blocking of electrostatic discharge and electromagnetic radiation
Implementation Method 3
a conductive tape electrically connected to the first surface of the one-sided conductive rubber pad and disposed between the display panel and the one-sided conductive rubber pad
Data Source
AI summary
A display module of a display device includes a display panel, a middle frame configured to seat and fix the display panel, an upper receiving frame including a front part covering an edge part of an upper surface of the display panel and a side part covering the side surfaces of the display panel and the middle frame and a one-sided conductive rubber pad located between the upper receiving frame and the display panel. The one-sided conductive rubber pad includes a conductive first surface and a non-conductive second surface facing each other, the first surface faces the display panel, and the second surface is in contact with the upper receiving frame.