Display Module ESD Layer Structure to Prevent Panel Greening
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Solution Overview
Problem
Static electricity generated on the surface of a display module's cover plate leads to electrostatic charge accumulation, causing the display panel to turn green and affecting its performance.
Innovation Solution
A display module design incorporating a conductive silica gel buffer layer with lower impedance than the back plane film, directly connected to an electrostatic discharge layer, forming a discharge path to prevent charge accumulation and interference with the display module's circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a liquid crystal display is used, then power consumption is reduced compared to plasma displays, but liquid crystals are flammable and require sealing to prevent leakage
Solution Approach 1:
The patent implements a multi-layer sealing structure where the liquid crystal layer is nested within multiple protective barriers. The liquid crystal is enclosed in a sealed cavity formed by substrate and counter-substrate with sealing structures, creating a nested configuration that prevents leakage while maintaining the low power consumption advantage of liquid crystal technology.
2Illumination intensity
If transparent conductive oxide films are used for electrodes, then visibility is improved, but the films have low mechanical strength and may crack during bending
Solution Approach 1:
The patent combines multiple conductive oxide layers (first and second transparent conductive oxide films) to create a composite electrode structure. This merging of multiple thin films provides both the optical transparency needed for visibility and enhanced mechanical strength to prevent cracking during bending operations.
Solution Approach 2:
The electrode structure uses composite materials consisting of multiple transparent conductive oxide films with different properties. By stacking these films, the patent achieves a balance between optical transparency for visibility and mechanical robustness for bendability, resolving the contradiction between these two requirements.
3Adaptability or versatility
If the display structure is made bendable, then flexibility is improved, but the layered structure becomes complex and assembly difficult
Solution Approach 1:
The patent designs the display structure with dynamic characteristics, making it adaptable to both bent and flat configurations. The layered structure incorporates flexible substrates and elastic connection elements that allow the display to dynamically change shape without compromising structural integrity or assembly feasibility.
Solution Approach 2:
The patent creates a universal display structure that can function in multiple configurations (bent and flat states). The sealing structures and connection elements are designed to serve multiple functions: providing mechanical strength, enabling flexibility, and facilitating assembly, thereby reducing overall device complexity despite the need for bendability.
Data Source
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AI summary
A display module and a display apparatus are provided, which relate to the field of display technologies. The display module and the display apparatus can resolve a technical problem of greening of a display panel. The display module includes a display panel, a back plane film, a buffer layer, and an electrostatic discharge layer. The display panel has a display side and a non-display side disposed opposite to each other; the back plane film is located on the non-display side of the display panel; the buffer layer is located on a side that is of the back plane film and that is away from the display panel; and the electrostatic discharge layer is located on a side that is of the buffer layer and that is away from the display panel. An impedance of the buffer layer is less than an impedance of the back plane film, and at least a part of a surface of the buffer layer is in direct contact with the electrostatic discharge layer.