LED Display Carrier Layout for High Pixel Density and Light Direction
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Solution Overview
Problem
Conventional liquid crystal displays require a backlight module, making them thicker and heavier compared to light-emitting diode displays, which can be lighter and thinner without this component, but existing light-emitting diode displays face challenges in efficiently arranging and connecting light-emitting units for optimal resolution and light directionality.
Innovation Solution
The proposed light-emitting diode display employs a first and second carrier with specific electrode configurations, a frame, and a protective layer to arrange light-emitting units in a manner that allows for independent control of light intensity and color, with the frame absorbing lateral light to concentrate emission perpendicular to the surface, and the carriers' design reduces wire density and signal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If light-emitting diode displays eliminate the backlight module to achieve lighter and thinner design, then weight and thickness are improved, but efficient arrangement and connection of light-emitting units becomes challenging
Solution Approach 1:
The patent divides the display structure into multiple carriers (first carrier, second carrier, third carrier) that can be independently arranged and connected. Each carrier supports light-emitting units and connection pads, allowing modular assembly and simplified connection management without requiring a backlight module.
Solution Approach 2:
The patent utilizes vertical stacking of multiple carriers (first carrier above second carrier, third carrier arranged on first carrier) to organize light-emitting units and connection pads in three-dimensional space. This dimensional arrangement reduces wire density and simplifies connections while maintaining the thin-profile advantage of LED displays without backlight modules.
2Measurement precision
If multiple carriers are used to arrange light-emitting units, then resolution and pixel density are improved, but wire density and signal interference increase
Solution Approach 1:
The patent distributes connection pads across multiple carriers arranged in vertical layers (first carrier, second carrier below it, third carrier on first carrier). This three-dimensional arrangement of electrical connections reduces wire density and minimizes signal interference while enabling high pixel density and resolution on the display surface.
Solution Approach 2:
The patent introduces intermediate carriers (second carrier, third carrier) that act as mediators for electrical connections between light-emitting units and external circuits. These intermediate carriers with connection pads reduce the complexity of direct wiring and minimize signal interference by providing distributed connection points in three-dimensional space.
3Ease of manufacture
If connection pads are arranged on carriers, then electrical connection is simplified, but distance between connection pads must be larger than distance between electrodes
Solution Approach 1:
The patent arranges connection pads on multiple carriers stacked in vertical layers rather than spreading them out on a single large carrier plane. This three-dimensional arrangement allows compact overall footprint while providing sufficient distance between connection pads for easy electrical connection and assembly operations.
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 configuration enables a lighter, thinner display with improved resolution and efficient light directionality, allowing for higher pixel density and easier replacement of faulty units, while maintaining the advantages of not requiring a backlight module.
Implementation Method 1
the frame absorbing lateral light to concentrate emission perpendicular to the surface
Data Source
AI summary
This disclosure discloses a display including a first carrier, a second carrier, a light-emitting unit, a frame, and a protective layer. The first carrier includes a first electrode and a second electrode. The second carrier is arranged below the first carrier and includes a first connection pad and a second connection pad arranged on a side of the second carrier close to the first carrier. The light-emitting unit is arranged on the first carrier. The frame surrounds the light-emitting unit, and the protective layer covers the light-emitting unit. A distance between the first electrode and the second electrode is smaller than that between the first connection pad and the second connection pad.