Chemical Liquid Supply Stage Rotation for Multi-Direction Pixels
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Solution Overview
Problem
Conventional chemical liquid supply apparatuses are limited in their ability to efficiently supply chemical liquids onto substrates for forming pixels in multiple directions, requiring multiple apparatuses and increasing complexity and cost in manufacturing display devices with varying panel sizes.
Innovation Solution
An apparatus with a stage, a chemical liquid discharging member, and a direction changing member that can rotate and adjust the substrate to allow chemical liquid to be supplied onto regions in different directions, using vacuum suction and air injection to stabilize and align the substrate during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional chemical liquid supply member supplies chemical liquid along one direction only, then the supply process is simple, but multiple apparatuses are required to form pixels in different directions
Solution Approach 1:
The patent combines multiple substrate orientation capabilities into a single chemical liquid supply apparatus. The stage can rotate to orient the substrate in different directions, and the substrate can be flipped to expose different surfaces. This merging of functions allows one apparatus to perform what previously required multiple separate apparatuses, resolving the contradiction between versatility and device complexity.
Solution Approach 2:
The patent introduces dynamic capabilities to the apparatus through the rotatable stage and flippable substrate mechanism. Instead of requiring multiple fixed apparatuses for different orientations, the stage can dynamically rotate to different angles (0°, 90°, 180°, 270°), and the substrate can be flipped between front and back surfaces. This dynamic adaptability allows a single apparatus to handle multiple substrate orientations efficiently.
2Adaptability or versatility
If multiple apparatuses are used to supply chemical liquid in different directions, then pixel formation in different directions is achieved, but manufacturing cost and time increase
Solution Approach 1:
The patent merges the functions of multiple chemical liquid supply apparatuses into one integrated system. The single apparatus can supply chemical liquid in different directions by rotating the stage and flipping the substrate, eliminating the need for multiple separate apparatuses. This consolidation directly improves manufacturing efficiency by reducing the number of equipment changes and setup times required.
Solution Approach 2:
The chemical liquid supply apparatus is designed with universal capabilities to handle substrates in multiple orientations. The rotatable stage and substrate flipping mechanism enable the apparatus to universally process substrates regardless of their orientation or which surface needs treatment. This multi-functionality allows a single apparatus to replace multiple specialized apparatuses, improving productivity while maintaining the ability to form pixels in different directions.
3Adaptability or versatility
If the substrate direction is changed to supply chemical liquid in different directions, then pixels in different directions can be formed, but substrate bending may occur
Solution Approach 1:
The patent employs support members that contact the back surface of the substrate to prevent bending during the direction change process. Before the substrate is rotated or flipped, these support members are positioned to provide cushioning and structural reinforcement. This beforehand cushioning ensures that the substrate maintains its integrity and stability throughout the orientation changes, preventing bending or deformation that could compromise the substrate.
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
Enables the formation of pixels in different directions on a single substrate using a single apparatus, simplifying the manufacturing process and reducing costs by allowing precise alignment and preventing substrate bending during direction changes.
Implementation Method 1
the holding member provides a vacuum suction to the portion of the bottom of the substrate
Implementation Method 2
the bending preventing member may provide an air injection to the edge portion of the substrate deviated from the state
Data Source
AI summary
An apparatus for supplying a chemical liquid may include a stage on which a substrate is placed, a chemical liquid discharging member and a direction changing member. The chemical liquid discharging member may supply the chemical liquid onto at least two first regions of the substrate for first pixels along a first direction. Additionally, the chemical liquid discharging member may supply the chemical liquid onto at least two second regions of the substrate for second pixels along a second direction. The direction changing member may change a direction of the substrate from the second direction to the first direction.