Ion-Doped Organic Wire Layer for Display Light Absorption
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Solution Overview
Problem
Conventional liquid crystal display devices face issues with external light reflection, which degrade display quality and require additional components like black matrices that reduce aperture ratio.
Innovation Solution
Incorporating an ion-doped photosensitive resin material with nanoparticles into the metal wires, which absorbs external light and reduces reflection without the need for a black matrix, by ion implantation to change the resin's color and thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a black matrix is used to block reflection of metal wires, then external light reflection is reduced, but aperture ratio is reduced
Solution Approach 1:
The patent merges the black matrix layer with the organic layer of the wire structure itself. The organic layer is designed to be light-absorbing and is positioned directly on the metal wire, eliminating the need for a separate black matrix layer. This integration maintains light reflection suppression while preserving aperture ratio by removing redundant structures.
Solution Approach 2:
The wire structure becomes self-sufficient in blocking external light reflection through its own organic layer. The organic layer, containing light-absorbing materials, is incorporated directly into the wire construction, allowing the wire to perform both its electrical function and light-blocking function without requiring external assistance from separate black matrix layers.
2Object-affected harmful factors
If additional light-blocking layers are added to reduce reflection, then display quality is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated structure. The organic layer of the wire simultaneously serves as an electrical conductor and a light-blocking element, eliminating the need for additional separate light-blocking layers and thereby reducing overall device complexity.
Solution Approach 2:
The organic layer is designed to perform multiple functions: it provides electrical connectivity as part of the wire structure while also serving as a light-absorbing layer to block external light reflection. This multi-functionality reduces the need for additional specialized components, simplifying the overall device architecture.
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 effectively minimizes external light reflection, enhancing display quality and aperture ratio by using the ion-doped organic layer to absorb light, thus eliminating the need for additional light-blocking layers.
Implementation Method 1
ion doping the patterned photosensitive resin material on the patterned metal layer to form the wire including the patterned metal layer and an ion-doped patterned photosensitive resin material thereon
Implementation Method 2
the organic layer within the one signal line may have an opaque color... The organic layer within the one signal line may have a black color
Data Source
AI summary
A display device includes: a thin film transistor to which signals are provided for displaying an image, the thin film transistor including a semiconductor layer, a data signal line and a gate signal line; and a first electrode with which the image is displayed, the first electrode connected to the thin film transistor. One signal line among the data signal line and the gate signal line in the thin film transistor includes a metal layer and an organic layer which is disposed on the metal layer, and the organic layer is an ion-doped photosensitive resin material.