Display Panel Light Shielding Pattern Sharpness
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Solution Overview
Problem
Existing display panels face challenges in achieving a sharp and linear pattern for light shielding layers formed via wet processes, which affects the light shielding effect and display contrast due to the inherent limitations of wet process techniques.
Innovation Solution
A display panel design incorporating a patterned oxide layer with modified hydrophobic and hydrophilic properties on the top substrate, where the patterned oxide layer is located between the top substrate and the light shielding layer, allowing for a sharp and linear pattern of the light shielding layer to be formed, enhancing the light shielding function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a light shielding layer is formed on the top substrate via wet process, then the light shielding layer can be formed, but the pattern is not sharp which affects the light shielding effect
Solution Approach 1:
An oxide layer is introduced as an intermediary between the top substrate and the light shielding layer. This oxide layer serves as a mediator that improves the interaction between the substrate and the ink material, enabling sharp pattern formation through wet process by controlling the spreading and adhesion characteristics of the ink material.
Solution Approach 2:
The surface properties of the oxide layer are modified to change its hydrophilicity or hydrophobicity characteristics. By adjusting these surface parameters, the ink material's spreading behavior is controlled, allowing the pattern to be confined within designated regions and achieve sharp edges without affecting the wet process manufacturing method.
2Manufacturing precision
If the ink material spreads evenly within the designated region, then the pattern sharpness is improved, but the ink material may leak into adjacent regions
Solution Approach 1:
The oxide layer is selectively disposed in specific regions of the top substrate, creating local variations in surface properties. The oxide layer is present in regions where sharp pattern edges are needed while being absent in adjacent regions, allowing the ink material to spread evenly within designated regions and preventing leakage into adjacent areas through localized surface modification.
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
The solution results in a sharp and linear pattern for the light shielding layer, improving the light shielding effect and display contrast by ensuring the ink material evenly spreads and solidifies within the designated region, preventing unwanted light leakage and enhancing the overall display quality.
Implementation Method 1
the patterned oxide layer has a modified surface with hydrophobic property
Implementation Method 2
The outer surface of the top substrate is modified at the second region to form a modified outer surface, and the modified outer surface is more hydrophobic than the modified surface of the patterned oxide layer
Implementation Method 3
The light shielding layer is disposed on the non-display region to shield the unwanted light leakage
Implementation Method 4
The black matrix layer may not only define the display region but also prevent unwanted light leakage
Data Source
AI summary
A display panel according to an embodiment is provided and includes a top substrate having an outer surface; a display layer covered by the top substrate; a patterned light shielding layer disposed on the outer surface of the top substrate and located within the first region; and a patterned oxide layer disposed on the outer surface of the top substrate. The outer surface comprises a first region and a second region beside the first region. An edge of the patterned light shielding layer at least partially overlaps a boundary between the first region and the second region. The patterned oxide layer is located within one of the first region and the second region while exposes the other of the first region and the second region.