Laser-Welded Display Panel Assembly for Slim Bezel Design
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Solution Overview
Problem
Conventional display devices have limitations in reducing the bezel size and enhancing aesthetic appeal due to the use of extra structures and bonding mediums, which restricts design freedom and increases production costs.
Innovation Solution
The display device incorporates a rear chassis, a display panel, a middle mold, and an optical member, with infrared absorbent materials and laser-welding techniques to directly couple components without extra structures, reducing bezel size and enhancing aesthetic appeal by minimizing thickness and design complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bonding methods with extra structures are used, then assembly reliability is improved, but device complexity and bezel size increase
Solution Approach 1:
The patent removes intermediate bonding structures and adhesives from the assembly process. The display panel is directly bonded to the front chassis through laser welding, eliminating extra bonding layers and simplifying the overall structure while maintaining assembly reliability.
Solution Approach 2:
The patent merges the bonding function directly into the structural components themselves. The front chassis and display panel are directly welded together without separate bonding agents, combining the structural support and bonding functions into a single integrated assembly.
2Reliability
If conventional bonding methods with bonding mediums are used, then assembly reliability is improved, but manufacturing cost increases
Solution Approach 1:
The patent extracts and eliminates bonding mediums such as adhesives and bonding agents from the manufacturing process. This removal of intermediate materials reduces material costs and simplifies the manufacturing workflow while maintaining reliable assembly through direct laser welding.
3Reliability
If extra structures and bonding mediums are used, then assembly reliability is improved, but productivity decreases
Solution Approach 1:
The patent removes multiple intermediate assembly steps involving bonding mediums and extra structures. By directly welding the display panel to the front chassis, the manufacturing process is streamlined, reducing assembly time and improving overall productivity.
Solution Approach 2:
The patent replaces mechanical bonding methods (adhesives, mechanical fasteners) with laser welding technology. This substitution enables faster, more precise assembly with higher automation potential, thereby improving manufacturing efficiency and productivity.
4Reliability
If conventional bonding methods are used, then assembly reliability is improved, but design freedom is restricted
Solution Approach 1:
The patent extracts and eliminates the constraints imposed by bonding mediums and intermediate structures. This removal allows for greater design flexibility in terms of component placement, orientation, and overall device configuration, enhancing design freedom while maintaining assembly reliability through direct welding.
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 approach increases productivity, saves production costs, and improves design quality by eliminating unnecessary structures, resulting in a slimmer bezel and enhanced aesthetic impression.
Implementation Method 1
an infrared absorbent applied between the display panel and at least one of the middle mold or the optical member... The display panel may transmit infrared rays and the middle mold may absorb infrared rays, so that the display panel and the middle mold may be laser-welded
Implementation Method 2
a welding portion formed by laser-welding the display panel and at least one of the middle mold or the optical member
Data Source
AI summary
A display device including a rear chassis, a display panel arranged in front of the rear chassis to display an image, a middle mold arranged between the display panel and the rear chassis and coupleable to the rear chassis, an optical member arranged between the rear chassis and the display panel, and a welding portion formed by laser-welding the display panel and at least one of the middle mold or the optical member.