Spliced Screen Gap-Covering Lamp Plate for Lateral Black Strip Elimination
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Solution Overview
Problem
Conventional spliced screens with LED lamp plates suffer from black strips appearing when viewed laterally due to the protrusions and non-emitting lateral surfaces of the lamp plates, affecting display quality.
Innovation Solution
A structural component with a bottom surface covering the splicing gap and a lamp plate with a wiring plate and luminescent bodies disposed on its surface, ensuring uniform brightness and light emission across the display panels, preventing black strips from appearing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an LED lamp plate is used to cover the splicing gap between display panels, then the splicing gap is effectively covered and the display area is increased, but the LED lamp plate creates protrusions and non-emitting lateral surfaces that cause black strips to appear when viewed from the lateral side
Solution Approach 1:
The patent transitions from a conventional planar LED lamp plate to a three-dimensional light-emitting structure that wraps around the splicing gap. The light-emitting component includes a light-emitting surface that covers the splicing gap and light-emitting lateral surfaces that extend downward along the sides, effectively filling the gap from both top and lateral perspectives. This dimensional extension eliminates the black strip effect when viewed from the lateral side while maintaining the display area enhancement.
Solution Approach 2:
The patent introduces a reflective layer as an intermediary element between the light-emitting component and the display panels. This reflective layer is disposed in the splicing gap and reflects light toward the viewing area, further enhancing the coverage of the splicing gap and contributing to uniform brightness distribution. The reflective layer acts as a mediator that redirects light to eliminate dark regions and improve overall display uniformity.
2Length of stationary object
If the LED lamp plate has a certain height to cover the splicing gap, then the gap coverage is improved, but the lateral surface of the lamp plate becomes visible and cannot emit light, affecting display quality
Solution Approach 1:
The light-emitting component is designed with extended lateral surfaces that wrap around the splicing gap structure. These lateral light-emitting surfaces extend downward from the top light-emitting surface, ensuring that light is emitted not only from the top but also from the lateral sides. This dimensional extension ensures uniform brightness from all viewing angles and eliminates the visibility of non-emitting lateral surfaces.
Solution Approach 2:
The patent applies different functional qualities to different parts of the light-emitting component. The top surface provides primary light emission for front viewing, while the lateral surfaces provide additional light emission for lateral viewing angles. This local differentiation of light-emitting functions ensures that each surface optimally serves its specific viewing direction, maintaining uniform illumination intensity across all angles.
3Ease of manufacture
If conventional panels with LED lamp plates are used, then large-scale screens can be realized with low cost, but the protrusions and non-emitting lateral surfaces affect the display effect when viewed from the lateral side
Solution Approach 1:
The patent merges the light-emitting function with the gap-covering structural function into a single integrated light-emitting component. This component simultaneously serves as both the light source and the structural element that covers the splicing gap, eliminating the need for separate LED lamp plates and additional gap-filling structures. This integration maintains manufacturing simplicity and cost-effectiveness while achieving superior display quality without black strips.
Solution Approach 2:
The light-emitting component is designed to perform multiple functions: it provides light emission for display, covers the splicing gap from the top view, and extends lateral surfaces to cover the gap from lateral views. This multi-functional design eliminates the need for separate components for each function, maintaining ease of manufacture while significantly improving display quality across different viewing angles.
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
Improves display quality by ensuring consistent brightness and eliminating black strips when viewed laterally, enhancing the overall viewing experience of spliced screens.
Implementation Method 1
at least one lamp plate, wherein the at least one lamp plate comprises a wiring plate and a plurality of luminescent bodies disposed on the wiring plate
Data Source
AI summary
A spliced screen and a display terminal are disclosed. In the spliced screen, a structural component is disposed on two adjacent display panels and covers a splicing gap between the two adjacent display panels. A lamp plate is disposed on a surface of the structural component. When the spliced screen displays an image, a plurality of luminescent bodies disposed on the lamp plate close to the display panels also emit light, thereby preventing black strips from appearing on the image. In the spliced screen, a viewing angle of the display panels and a viewing angle of the lamp plate are same, so that a brightness of the display panels and a brightness of the lamp plates are same when the spliced screen is viewed from a lateral side. As such, display quality is improved.