Micro-LED Light Plate Blocking Structure for Vibration Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Micro-LED chips are prone to jumping out of the substrate during assembly due to excessive vibration amplitude, leading to installation failures and low mass transfer efficiency and accuracy in Micro-LED display technology.
Innovation Solution
A light plate with a blocking structure and a shaking structure that includes a vibrator, vibration plate, support plate, and elastic pieces to control vibration frequencies and prevent chips from jumping out, enabling automatic assembly and precise installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vibration amplitude is increased to improve mass transfer efficiency, then assembly speed is improved, but light-emitting elements jump out of the substrate causing installation failures
Solution Approach 1:
The blocking structure is pre-configured on the light plate at positions where light-emitting elements may jump out during vibration. This preliminary protective measure counteracts the potential harmful effect of excessive vibration amplitude, allowing high-frequency vibration to be applied without causing installation failures.
Solution Approach 2:
The blocking structure acts as a cushioning barrier that absorbs and limits the displacement of light-emitting elements during vibration. By providing this protective constraint in advance, the system can operate at higher vibration amplitudes while preventing elements from jumping out and causing installation failures.
2Productivity
If vibration frequency is increased to improve assembly speed, then productivity is improved, but alignment precision deteriorates
Solution Approach 1:
The system uses controlled periodic vibration at specific frequencies to facilitate mass transfer. The blocking structure ensures that this periodic action occurs within defined spatial boundaries, allowing high-frequency vibration to improve assembly speed while the blocking structure maintains alignment precision by preventing excessive displacement.
3Reliability
If blocking structure is added to prevent chip jumping, then installation reliability is improved, but device complexity increases
Solution Approach 1:
Instead of adding complex structures throughout the entire light plate, the blocking structure is strategically placed only at specific locations where light-emitting elements are most likely to jump out during vibration. This localized approach provides the necessary reliability improvement while minimizing the increase in overall device complexity.
Solution Approach 2:
The blocking structure is designed with asymmetric placement and configuration tailored to the specific vibration patterns and element positions. This asymmetric design provides optimal protection against chip jumping while avoiding the complexity of symmetric, overly-generalized structures.
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 solution allows for high-efficiency, accurate installation of Micro-LED chips without manual intervention, reducing the need for precise alignment and minimizing installation failures.
Implementation Method 1
a vibration plate 320, arranged on the side of the vibrator 310 facing away from the bottom plate 200... When installing the light-emitting elements 400, the light plate 100 can realize the automatic assembly of the light-emitting elements 400 through the structure of the light plate 100 itself. That is, the vibrator 310 drives the light-emitting elements 400 to resonate
Implementation Method 2
the vibrator 310 drives the light-emitting elements 400 to resonate so that the light-emitting elements 400 gradually adjust their positions to be installed at the designated positions
Implementation Method 3
the blocking piece 520 will vibrate along with the vibration of the light-emitting elements 400, so that the light-emitting elements 400 will be blocked by the blocking piece 520, so as to prevent the light-emitting elements 400 from jumping out of the vibration plate 320
Implementation Method 4
the blocking piece 520 will vibrate along with the vibration frequency of the vibration plate 320 under the action of the shaking structure 600
Data Source
AI summary
A light plate and a display device are disclosed. The light plate includes a bottom plate, a vibration fitting assembly, multiple light-emitting elements, and a retaining assembly. The retaining assembly includes a guide piece, a blocking piece, a first elastic piece, and a shaking structure. The bottom plate includes a guide slot. The guide piece is fixedly arranged at a periphery of the bottom plate. The guide piece includes a first slide groove in one side facing a center of the bottom plate. The blocking piece includes a slider and a guide rod. The slider is slidably fitted with the first slide groove. The first elastic piece is disposed in the guide slot. The guide rod extends into the guide slot and abuts against the first elastic piece. The shaking structure is disposed between the blocking piece and the bottom plate.