Bezelless Display Optical Bonding for Shock and Contrast
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Solution Overview
Problem
Conventional display systems, such as LCDs, face challenges in mechanical wear, environmental exposure, and aesthetic appeal due to the use of mechanical bezels, which reduce viewability and increase size and weight, while also trapping particles and limiting contrast in bright environments.
Innovation Solution
A bezelless display system is achieved by optically bonding a display assembly directly to a continuous overlay, eliminating the need for a mechanical bezel and incorporating customizable sections for sensors, actuators, and coatings, using an adhesive with similar refractive indices to enhance durability and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a mechanical bezel is used to retain the LCD assembly, then mechanical protection and structural support are improved, but viewable area is reduced and aesthetic appeal deteriorates
Solution Approach 1:
The patent removes the mechanical bezel from the display system, extracting the protective function to a separate window overlay layer that is optically bonded to the display assembly. This eliminates the bezel's obstruction of the viewable area while maintaining protection through the bonded overlay structure.
Solution Approach 2:
The patent merges the protective function with the display assembly by optically bonding a window overlay to the front surface of the LCD. This creates an integrated protective-display structure that eliminates the need for a separate mechanical bezel, thereby maximizing the viewable area while maintaining mechanical protection.
2Strength
If a mechanical bezel is used to retain the LCD assembly, then structural support is improved, but device size and weight increase
Solution Approach 1:
The patent extracts the structural support function from a traditional mechanical bezel and redistributes it through the optically bonded window overlay and display assembly integration, eliminating the need for heavy bezel structures and reducing overall device weight.
Solution Approach 2:
The patent uses a thin window overlay film that is optically bonded to the display assembly, replacing the bulky mechanical bezel structure. This thin film provides necessary protection and structural integration while minimizing added weight and thickness.
3Adaptability or versatility
If a mechanical bezel is used, then provisions for sensors and actuators are enabled, but aesthetic appeal and contrast are reduced due to protruding elements
Solution Approach 1:
The patent moves sensor and actuator provisions from the protruding bezel dimension to the planar window overlay surface, allowing sensors and actuators to be integrated flush with the display surface. This maintains functionality while eliminating protruding elements that would reduce contrast and aesthetic appeal.
4Reliability
If a window overlay is secured through a mechanical bezel, then environmental protection is improved, but dirt and particles are trapped along the bezel edges
Solution Approach 1:
The patent removes the mechanical bezel that creates particle-trapping crevices and instead uses a window overlay that is optically bonded directly to the display assembly. This creates a smooth, continuous surface that prevents particle accumulation while maintaining environmental protection through the bonded structure.
Solution Approach 2:
The patent creates a homogeneous, smooth surface by optically bonding the window overlay to the display assembly without protruding bezels. This uniform surface structure eliminates crevices where dirt and particles could accumulate, while the bonded structure maintains environmental protection.
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 solution improves shock resistance, humidity resistance, and contrast, simplifies manufacturing, reduces size and weight, and enhances the aesthetic appeal of the display system while maintaining or improving mechanical and environmental protection.
Implementation Method 1
an adhesive with similar refractive indices to enhance durability and aesthetics
Data Source
AI summary
A display system is provided including a display assembly with a display region of a first size, an overlay having a first substantially transparent section corresponding to the size of the display region of the display assembly and a second customized section extending beyond the first substantially transparent section, and an adhesive optically bonding the display region of the display assembly to the overlay. In some embodiments, the display assembly is one of a liquid crystal display, an organic light emitting diode display, and an electronic paper display. In some embodiments, the second customized section of the overlay may include an accessory, such as a sensor accessory, an actuator, or a coating.