Flat Panel Display Protection Window Recessed Resin Anchoring
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Solution Overview
Problem
Conventional flat panel display devices with protection windows suffer from reduced visibility due to light reflections at air gaps between the protection window and the display panel, and existing solutions using transparent films or resins face issues with adhesion, uniformity, and stability, leading to defects and increased production costs.
Innovation Solution
A flat panel display device design featuring a protection window member with recessed areas and ink layers, where the edges of a transparent film or resin are disposed within these recesses, providing a stable and uniform interface that eliminates air gaps and enhances adhesion, thereby improving visibility and reducing assembly complexities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a transparent film or resin is used to remove the air gap between the protection window and display panel, then visibility is improved, but the transparent film easily slips or comes apart and the resin slides outside the protection window
Solution Approach 1:
The patent introduces a recess structure that extends in the thickness direction (z-axis) of the protection window, creating a three-dimensional configuration. This recess receives and anchors the transparent film or resin, preventing it from slipping laterally. The edges of the transparent film or resin are positioned within the recess, providing mechanical constraint in the planar directions while maintaining optical transparency.
Solution Approach 2:
The recess acts as an intermediary structural element between the protection window and the transparent film/resin. It provides a dedicated receiving space that mediates the connection, ensuring the transparent material remains properly positioned without directly adhering to the entire surface of the protection window, thus preventing slippage while maintaining visibility.
2Illumination intensity
If resin is used to fill the air gap, then visibility is improved, but it is difficult to control the uniformity of the thickness of the resin due to its fluidity
Solution Approach 1:
The recess structure extends in the thickness direction of the protection window, creating vertical walls that confine the resin laterally. This three-dimensional configuration prevents the resin from spreading uncontrollably in the planar directions, ensuring uniform thickness distribution. The resin fills the recess space between the protection window and display panel, maintaining consistent gap elimination without lateral displacement.
Solution Approach 2:
The recess provides localized confinement for the resin specifically in the area where gap elimination is needed. The walls of the recess create localized boundaries that control resin flow and positioning, ensuring uniform thickness in the critical display area while allowing the resin to be contained precisely where required.
3Illumination intensity
If the transparent film is attached to the protection window, then the air gap is removed and visibility is improved, but the transparent film easily slips or comes apart increasing defects
Solution Approach 1:
The recess structure creates a three-dimensional anchoring configuration where the transparent film is received within the recess space. The edges of the film are positioned within the recess walls, providing mechanical interlocking that prevents slippage. This eliminates the need for complex additional fastening mechanisms or adhesives, simplifying the assembly process while ensuring reliable attachment.
Solution Approach 2:
The recess structure provides self-contained anchoring for the transparent film through its geometric configuration. The film's edges are naturally constrained by the recess walls, creating a self-securing mechanism that does not require additional fasteners, adhesives, or complex assembly steps. The structure serves its own attachment function through its three-dimensional form.
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 effectively reduces light reflections, enhances adhesion stability, and simplifies the assembly process, resulting in improved visibility and reduced production defects and costs by ensuring the transparent film or resin remains securely attached and uniformly positioned.
Implementation Method 1
When a light ray is passing through two layers contacting each other and having different refractive indices, a portion of the light ray is reflected in the boundary of the two layers. This phenomenon can be explained by Snell's Law.
Implementation Method 2
The refractive indices of the protection window and the display panel are greater than the refractive index of the air.
Data Source
AI summary
A flat panel display device includes a display module, a protection window member and a layer disposed in an area between the protection window member and a display area of the display module. The protection window member includes a stepped portion within which the layer is disposed. The stepped portion may include a recess or a plurality of layers.


