Display Panel Black Color Resistance Layer Capacitance
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Solution Overview
Problem
Display panels face issues such as increased circuit load due to parasitic capacitance between metal layers, leading to poor display quality and light leakage, which existing technologies have not adequately addressed.
Innovation Solution
Incorporating a black color resistance layer between the first and second metal layers in the display panel, along with an insulating layer, to increase the distance between them and reduce coupling capacitance, while also blocking lateral light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the distance between the first metal layer and the second metal layer is reduced to improve integration, then the coupling capacitance between the metal layers increases, but this increases the circuit load and degrades display quality
Solution Approach 1:
The patent introduces a black color resistance layer as an intermediary substance between the first metal layer and the second metal layer. This layer has high light absorption properties and acts as a mediator to reduce the coupling capacitance between the metal layers while maintaining compact integration, thereby solving the contradiction between integration density and capacitance reduction.
2Object-generated harmful factors
If the distance between the first metal layer and the second metal layer is increased to reduce coupling capacitance, then the circuit load decreases, but this increases the occupied area and reduces integration
Solution Approach 1:
The patent employs a thin film black color resistance layer that provides effective capacitance reduction through its light-absorbing properties without requiring large vertical distance. This thin film approach reduces coupling capacitance while maintaining compact area, resolving the contradiction between capacitance reduction and area minimization.
3Object-generated harmful factors
If a conventional insulating layer is used between metal layers to reduce capacitance, then the dielectric property is limited, but this restricts the adjustable range of film thickness and reduces effectiveness
Solution Approach 1:
The patent changes the material parameter from conventional insulating materials to black color resistance materials with high light absorption coefficients. This parameter change enables effective capacitance reduction across a wider range of film thicknesses, as the light-absorbing property remains effective even at very thin film levels, thereby expanding the adjustable range and improving adaptability.
4Manufacturing precision
If the metal layers are placed close together to improve resolution, then light leakage between layers increases, but this degrades display quality
Solution Approach 1:
The patent utilizes the color property of the black color resistance layer, which has high light absorption across the visible spectrum. By changing from conventional insulating materials to black-colored light-absorbing materials, the layer effectively blocks light leakage between metal layers while maintaining close spacing for high resolution, thus resolving the contradiction between resolution and light leakage control.
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 configuration decreases the circuit load and parasitic capacitance, enhancing display quality by reducing signal interference and light leakage, thereby improving the overall performance of the display panel.
Implementation Method 1
the black color resistance layer can block the lateral light, which decreases light leakage, improves the display effect
Implementation Method 2
the distance between the first metal layer and the second metal layer increases, so that the coupling capacitance between the first metal layer and the second metal layer decreases
Data Source
AI summary
The present application discloses a display panel, a manufacturing method and a display apparatus. The display panel includes: a first substrate; a first metal layer formed on the first substrate; a second metal layer; and a black color resistance layer formed between the first metal layer and the second metal layer; the first metal layer is a scan line, the second metal layer is a data line, and an insulating layer and the black color resistance layer are disposed at the intersection of the scan line and the data line.