Display Panel Alignment Signals for LED Deflection Precision
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Solution Overview
Problem
Current display device manufacturing methods face inefficiencies in aligning and deflecting light-emitting elements, leading to suboptimal emission efficiency.
Innovation Solution
An apparatus and method that utilize a stage with a panel cell featuring first and second alignment lines, a field application part providing alignment signals with specific positive and negative integral values, peak voltages, and pulse widths, synchronized with emission timing signals to improve alignment and deflection efficiencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional alignment signals with equal positive and negative parameters are used, then the manufacturing process is simple, but the alignment precision and emission efficiency are insufficient
Solution Approach 1:
The patent applies parameter changes by modifying the alignment signal characteristics - specifically setting the positive peak voltage to be different from the negative peak voltage, and the positive pulse width to be different from the negative pulse width. This asymmetric parameter configuration optimizes the alignment precision and emission efficiency of light-emitting elements while maintaining manufacturability.
2Productivity
If asymmetric alignment signals with different positive and negative parameters are used, then the alignment efficiency improves, but the signal generation complexity increases
Solution Approach 1:
The invention implements parameter changes by configuring asymmetric positive and negative parameters in the alignment signal. The positive peak voltage and positive pulse width are set differently from their negative counterparts, which enhances alignment efficiency and productivity while the parameter relationships are designed to maintain manageable signal generation complexity.
3Reliability
If conventional light-emitting element alignment is used, then the manufacturing process is straightforward, but the emission efficiency is suboptimal
Solution Approach 1:
The patent improves emission efficiency through parameter changes in the alignment signal configuration. By setting asymmetric positive and negative peak voltages and pulse widths, the light-emitting elements achieve better alignment and orientation, thereby enhancing emission efficiency while maintaining a relatively straightforward manufacturing process.
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
Enhances the emission efficiency of display devices by optimizing the alignment and deflection of light-emitting elements, leading to improved display performance.
Implementation Method 1
a field application part providing an alignment signal to the first alignment line and the second alignment line of the panel cell
Implementation Method 2
light-emitting elements aligned between the first alignment line and the second alignment line
Data Source
AI summary
An apparatus for manufacturing a display device comprises a stage, a panel cell disposed on the stage and including a first alignment line, and a second alignment line extending parallel to the first alignment line, a field application part providing an alignment signal to the first alignment line and the second alignment line of the panel cell, and light-emitting elements aligned between the first alignment line and the second alignment line. The field application part provides an alignment signal to the first alignment line and the second alignment line, the alignment signal having the same positive integral value and negative integral value, having a different positive peak voltage from the alignment signal's negative peak voltage, and having a different positive pulse width from the alignment signal's negative pulse width.