Light Emitting Baseplate Support Columns for Accurate Unit Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light emitting baseplate manufacturing methods face challenges in evenly distributing supporting forces during the transfer of light emitting units, leading to potential tilting or shifting, which can result in deviation from the predetermined bonding position and reduced yield.
Innovation Solution
The use of symmetrically distributed supporting columns on the light emitting units, combined with a method involving a transfer baseplate with dissociation layers and adhesive layers, where the supporting columns are pressed onto the baseplate body after light emitting units are disposed on the adhesive layers, ensuring even support and preventing tilting or shifting during transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If supporting columns are added to support light emitting units during transfer, then positioning stability is improved, but device complexity increases
Solution Approach 1:
The supporting columns are pre-formed on the light emitting units before the transfer process. This preliminary preparation ensures that when the units are transferred to the substrate, the supporting columns are already in position to provide stable support and prevent tilting or shifting, thereby improving positioning stability without adding complexity during the transfer operation itself
Solution Approach 2:
The supporting columns act as intermediary structures between the light emitting units and the substrate. These columns provide a stable interface that distributes the supporting force evenly, preventing direct contact issues between the units and substrate while maintaining positioning stability during the transfer process
2Manufacturing precision
If symmetrically distributed supporting columns are used, then positioning accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
While the overall arrangement of supporting columns follows a symmetric distribution pattern to ensure even force distribution, the supporting columns themselves may have asymmetric cross-sectional shapes or orientations optimized for their specific positions. This combination maintains positioning accuracy through symmetric distribution while managing manufacturing complexity through standardized column designs
Solution Approach 2:
The supporting force is segmented into multiple discrete supporting columns distributed symmetrically across the light emitting units. This segmentation allows each column to be manufactured using standardized processes while collectively providing the required positioning accuracy through their symmetric arrangement
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 improves the transfer yield of light emitting units and the overall yield of the light emitting baseplate by ensuring even support and accurate positioning, reducing the likelihood of deviation during the bonding process.
Implementation Method 1
irradiating a side of the transfer baseplate away from the substrate by a laser which passes through the baseplate body and acts on the dissociation layers to dissociate the dissociation layers
Data Source
AI summary
A light emitting baseplate and a method of manufacturing the same, and a display device. The light emitting baseplate includes a substrate, and a plurality of light emitting units and a plurality of supporting columns located on the substrate. The plurality of supporting columns are located on surfaces of the light emitting units away from the substrate. A surface of each of the light emitting units away from the substrate is provided with the supporting columns respectively. Heights of the supporting columns are equal. The supporting columns disposed on a surface of a same light emitting unit are symmetrically distributed about a symmetrical axis of the surface. The display device includes the light emitting baseplate.