Spliced LCD Screen Magnetic Support Eliminates Dark Strips
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Solution Overview
Problem
Conventional liquid crystal displays (LCDs) used in public displays often require splicing, which results in dark strips at the splicing junction due to the width of the middle frame being greater than the edge frames, affecting visual experience.
Innovation Solution
A spliced display screen design utilizing a first and second magnetic unit with the same polarity, spaced along the splicing junction to support the LCD panels, replacing the need for a middle frame, allowing light to pass through and eliminating dark strips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a middle frame is used to support LCD panels at splicing junctions, then structural support is provided, but dark strips appear due to the middle frame width being greater than edge frame width
Solution Approach 1:
The patent replaces the traditional mechanical middle frame support system with a magnetic field-based support system. Magnetic units are arranged at the splicing junctions to provide structural support through magnetic repulsion forces, eliminating the need for physical middle frames that cause dark strip artifacts. This substitution maintains support functionality while removing the light-blocking mechanical structure.
Solution Approach 2:
The patent introduces magnetic units as intermediary elements between LCD panels at splicing junctions. These magnetic units create a magnetic field that acts as a non-contact support mechanism, allowing light to pass through without obstruction while still providing the necessary structural support to maintain panel positioning and spacing.
2Stability of the object's composition
If a middle frame is used to support LCD panels, then structural stability is achieved, but the display screen becomes thicker and heavier
Solution Approach 1:
The patent replaces heavy mechanical middle frames with lightweight magnetic units that provide structural support through magnetic fields. This substitution dramatically reduces the weight and thickness of the display screen while maintaining structural stability through non-contact magnetic repulsion forces between oppositely polarized magnetic units.
Solution Approach 2:
The patent changes the support mechanism from mechanical contact to magnetic field interaction, fundamentally altering the physical parameters of the support system. This parameter change enables thin and light display construction while maintaining structural stability through controlled magnetic field strength and unit arrangement.
3Strength
If a middle frame is used to support LCD panels, then structural support is provided, but the display screen becomes thicker
Solution Approach 1:
The patent replaces thick mechanical middle frames with thin magnetic units that provide structural support through magnetic fields. This substitution reduces the display screen thickness significantly while maintaining support functionality, as magnetic fields can exert force without requiring substantial physical space.
Solution Approach 2:
The patent employs thin magnetic units that function similarly to thin films, providing structural support with minimal thickness. These thin magnetic components maintain panel spacing and stability without adding significant bulk to the display screen construction.
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 magnetic support system ensures uninterrupted light emission across the splicing junction, enhancing visual experience by preventing dark strips and allowing for a thinner, lighter display screen design.
Implementation Method 1
the first magnetic unit and the second magnetic unit are spaced apart from each other along a splicing gap between two adjacent LCD panels, polarity of the first magnetic unit and polarity of the second magnetic unit are same, the LCD panels are supported by a mutual exclusion magnetic force between the first magnetic unit and the second magnetic unit
Data Source
AI summary
A spliced display screen is disclosed. The spliced display screen includes a case body, a backlight unit disposed on a side of the case body, at least two liquid crystal display (LCD) panels spliced to each other, a first magnetic unit, and a second magnetic unit. The LCD panels are attached to the case body and are disposed on a light-emitting side of the backlight unit. The first magnetic unit is disposed on a side of the case body close to the LCD panel. The second magnetic unit is disposed on a side of the LCD panels close to the backlight unit. Polarity of the first magnetic unit and polarity of the second magnetic unit are same.