Flat-Panel Display Bezel Cover with Outsert-Molded Black Resin
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Solution Overview
Problem
Conventional LCD devices with touchscreen panels experience glare due to light reflection on the inner faces of the bezel cover, which deteriorates display performance, especially under outdoor conditions, and existing solutions like coating the bezel cover with black paint increase production costs and lead to defects.
Innovation Solution
A metal frame bezel cover is integrated with an outsert-molded black resin part that covers the inner fringe and vicinity, preventing light reflection and improving display quality while minimizing production costs through a manufacturing method involving metal-sheet working and outsert molding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the bezel cover is coated with black paint to prevent light reflection, then display quality is improved, but production cost increases and defect rate rises
Solution Approach 1:
The patent replaces expensive black paint coating with a cheap black resin material that is molded into the bezel cover. The resin material serves as a disposable, cost-effective alternative to paint coating, achieving the same light reflection prevention function without the high production costs and defect rates associated with painting processes
Solution Approach 2:
The patent creates a composite structure by integrating black resin material into the metal frame bezel cover through outsert molding. This composite material approach combines the structural integrity of metal with the light-absorbing properties of black resin, eliminating the need for separate paint coating while reducing production costs and improving manufacturing reliability
2Object-affected harmful factors
If the bezel cover is coated with black paint to prevent light reflection, then display quality is improved, but production complexity and defect rate increase
Solution Approach 1:
The patent merges the black coating function directly into the bezel cover manufacturing process through outsert molding. The black resin material is integrated into the metal frame during the molding process itself, combining what were previously separate operations (metal fabrication + paint coating) into a single integrated manufacturing step, thereby reducing process complexity and eliminating paint-related defects
3Ease of manufacture
If the metal frame bezel cover is used without black coating, then production cost is reduced, but light reflection and glare occur
Solution Approach 1:
The patent applies local quality by adding black resin material only to the inner fringe portion of the bezel cover where light reflection occurs, rather than coating the entire bezel. This localized application of black material prevents glare at the critical interface between the display and bezel while maintaining cost-effectiveness and avoiding unnecessary complexity
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 glare and enhances display quality by ensuring the metal frame is not visible from any angle, even under harsh lighting conditions, while maintaining low production costs and improving the percentage of shippable products.
Implementation Method 1
the black resin part curbs reflecting of the outside light at the inward face on the casing frame
Data Source
AI summary
A flat-panel display device comprises a display panel, a main surface of which is substantially a viewing area; a bezel cover formed of a metal frame, which covers a fringe part of the display panel; a touchscreen panel that is arranged to cover the viewing area of the display panel so that the bezel cover is sandwiched between the fringe part of the display panel and a fringe part of the touchscreen panel; and an outsert-molded resin part that is formed integrally on said metal frame, by outsert molding with a black resin material, and covers an inner fringe of said metal frame as well as its vicinity on a surface facing the touchscreen panel.