Transparent Display Unit Bonding Layout for Minimal Bezel
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Solution Overview
Problem
Current display devices face challenges in achieving a thin, flexible, and reliable form factor due to the vulnerability of organic light-emitting display devices to external materials and the complexity of micro LED devices, while also requiring a bezel area for image output.
Innovation Solution
A display device with a wiring substrate featuring separate link wiring lines for different signals, spaced display units, and a reflective bonding layer to minimize bezel area, allowing for a large-area transparent display with unified signal transmission and eco-friendly design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If organic light-emitting display device is used, then no separate light source is required, but the device is vulnerable to moisture and oxygen causing defective pixels
Solution Approach 1:
The patent uses inorganic light-emitting elements (micro LEDs) combined with transparent substrates and bonding layers to create a composite structure that achieves both simplicity and high reliability against moisture and oxygen, eliminating the vulnerability of organic materials while maintaining a thin, integrated design
2Reliability
If micro LED display device is used, then resistance to moisture and oxygen is improved, but device complexity increases
Solution Approach 1:
The patent merges the light-emitting elements, wiring substrate, and bonding layers into an integrated modular structure where transparent display units are bonded to a wiring substrate containing light-emitting elements, reducing overall device complexity while maintaining the reliability advantages of inorganic materials
3Area of stationary object
If display units are disposed close to each other, then bezel area is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent introduces transparent bonding layers as intermediary elements between display units, which facilitate precise alignment and bonding while maintaining transparency. These bonding layers act as mediators that enable close spacing of display units without compromising manufacturing precision or visual appearance
4Area of stationary object
If transparent bonding layer is used, then bezel area is minimized, but bonding strength may be reduced
Solution Approach 1:
The patent employs composite bonding structures combining transparent bonding layers with additional bonding members that provide mechanical strength while maintaining transparency. This composite approach allows minimal bezel area through the transparent layer while the reinforced bonding structure ensures adequate bonding strength
Data Source
AI summary
A display device includes a wiring substrate on which a plurality of first link wiring lines transmitting a first signal and a plurality of second link wiring lines transmitting a second signal are disposed, wherein a plurality of first group of light-emitting elements are disposed on the wiring substrate; a plurality of display units disposed on and bonded to the wiring substrate, wherein the plurality of display units are spaced apart from each other, wherein a plurality of second group of light-emitting elements are disposed in each of the plurality of display units; a reflective bonding layer positioned between the wiring substrate and the plurality of display units; and a plurality of bonding members disposed between the display units and the wiring substrate, wherein the plurality of bonding members respectively overlap the plurality of the first link wiring lines and the plurality of the second link wiring lines.