Transistor-Integrated Alignment for Display Device Manufacturing
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Solution Overview
Problem
Current display device manufacturing processes are complex due to the need for separate electrode separation after light-emitting elements are aligned, increasing the number of required manufacturing steps.
Innovation Solution
Incorporating a transistor that applies an alignment signal during the manufacturing process, allowing for the alignment of light-emitting elements without the need for a separate electrode separation step by using transistors connected to each electrode, reducing the number of manufacturing processes required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a separate electrode separation step is performed after light-emitting elements are aligned, then the light-emitting elements can be properly positioned, but the number of manufacturing processes increases
Solution Approach 1:
The patent applies preliminary action by incorporating the alignment signal application function into the transistor structure before the light-emitting elements are mounted. The transistor's gate electrode is connected to an alignment signal line that can apply alignment signals to the electrodes during the mounting process, eliminating the need for subsequent electrode separation steps. This preliminary configuration of the transistor enables precise alignment while reducing manufacturing process complexity.
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 simplifies the manufacturing process by eliminating the need for additional electrode separation steps, enhancing efficiency and reducing complexity while ensuring accurate alignment of light-emitting elements.
Implementation Method 1
a separate transistor configured to apply an alignment signal in the manufacturing process
Data Source
AI summary
A display device including: a first substrate; a semiconductor layer on the first substrate; a first gate conductive layer on the semiconductor layer and including a scan line, a sensing line, and gate electrodes; a first data conductive layer on the first gate conductive layer and including a first data line, a second data line, and one electrode and the other electrodes of transistors; a second data conductive layer on the first data conductive layer and including a first voltage wiring and a second voltage wiring; first and second electrodes arranged on the second data conductive layer; light-emitting elements, each of the light-emitting elements having end portions on the first electrode and the second electrode, respectively; and a first transistor electrically connected to the first electrode and the first voltage wiring, and a second transistor electrically connected to the second electrode and the first data line.