Inkjet-Printed Display Coating for Light Blocking and Panel Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in efficiently managing material costs, thickness, size, and shape of the coating layer due to the use of films that require discarding when design changes occur, leading to dead spaces and inefficiencies in light blocking, shock resistance, and support functions.
Innovation Solution
A display device with a coating layer comprising a light blocking cushion portion and a support portion, formed using inkjet printing, which allows for materials with different properties to be applied at specific positions, reducing material waste and enabling precise control over thickness, size, and shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a film is used as a cover panel, then light blocking, shock resistance, and support functions are provided, but dead space occurs due to tolerances and the film must be discarded when design changes occur
Solution Approach 1:
The patent changes the manufacturing parameters from traditional film lamination to inkjet printing, enabling precise control of material deposition. This allows the coating layer to be formed directly on the display panel with accurate thickness and position control, eliminating dead space and reducing material waste while maintaining protective functions.
Solution Approach 2:
The patent replaces the mechanical lamination process with an inkjet printing process. Instead of mechanically attaching a separate film, the protective coating is directly printed onto the display panel surface, eliminating the need for separate film materials and reducing waste associated with film disposal and replacement.
2Reliability
If a film is used as a cover panel, then protective functions are provided, but the existing film is difficult to use when the structure or shape of the display panel is changed
Solution Approach 1:
The patent creates a dynamic manufacturing process where the coating layer is formed directly on the display panel through inkjet printing. This allows the protective structure to adapt to various display panel configurations and designs without requiring separate film replacements, as the coating can be precisely positioned and sized according to the specific panel geometry.
Solution Approach 2:
The patent applies different material properties to specific local areas of the display panel through selective inkjet printing. The coating layer can have varying thicknesses and material compositions in different regions, allowing optimization of protective functions for each specific area while adapting to the overall display panel design.
3Manufacturing precision
If traditional coating methods are used, then coating layer is formed, but it is difficult to control the thickness, size, shape, and material properties
Solution Approach 1:
The patent replaces traditional mechanical coating methods with inkjet printing technology. This substitution enables precise digital control of material deposition parameters, allowing accurate control of coating thickness, size, and shape through software-controlled printing heads rather than complex mechanical coating systems.
Solution Approach 2:
The patent utilizes inkjet printing to precisely control material deposition parameters including thickness, size, and shape. By adjusting printing parameters such as droplet size, deposition speed, and material concentration, the coating layer properties can be accurately controlled without requiring complex manufacturing processes.
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 reduces material costs and efficiently secures desired characteristics for each position of the display panel, allowing for easy design adjustments without dead spaces, enhancing light blocking and shock resistance.
Implementation Method 1
formed using inkjet printing, which allows for materials with different properties to be applied at specific positions
Implementation Method 2
a light blocking cushion portion in the first area
Implementation Method 3
a first support portion in the second area located on one side of the first area to support the display panel
Implementation Method 4
a light blocking cushion portion includes a first material mixed with an elastic material that includes at least one of silicon, urethane, epoxy acrylate, or polyethylene
Data Source
AI summary
A display device includes a display panel having different first and second areas on one surface, and a coating layer on the one surface of the display panel, the coating layer including a light blocking cushion portion in the first area, and a first support portion in the second area located on one side of the first area to support the display panel.