LCD Array Substrate Refractive-Index Layering for Color Point Tuning
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Solution Overview
Problem
Conventional LCD panels face challenges in meeting individual color point specifications without reducing gray scales, leading to lower energy efficiency.
Innovation Solution
A display panel design featuring an array substrate with a first insulating layer, a second insulating layer, and a first transparent insulating layer, where the absolute difference in refractive indices between these layers is greater than 0.1, allowing for adjustment of color points without reducing gray scales, thereby improving energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If gray scales are reduced to satisfy individual color point specifications, then color point requirements are met, but energy efficiency deteriorates
Solution Approach 1:
The patent changes the refractive index parameter of the insulating layers to satisfy color point specifications. By adjusting the refractive index difference between layers (making it greater than 0.1), the optical properties are modified to achieve desired color points without reducing gray scales, thus maintaining energy efficiency while meeting color requirements
Solution Approach 2:
The patent introduces a first transparent insulating layer as an intermediary between the first and second insulating layers. This intermediate layer with specific refractive index properties mediates the optical interaction, enabling color point adjustment without affecting the gray scale representation, thereby resolving the contradiction between color specification adaptability and energy efficiency
2Adaptability or versatility
If different color point specifications are met using conventional methods, then color requirements are satisfied, but manufacturing complexity increases due to gray-scale reduction
Solution Approach 1:
Instead of reducing gray scales to meet different color point specifications, the patent changes the refractive index parameter of the insulating layer structure. This allows the same gray scale levels to be maintained while achieving different color points through optical property modification, thereby reducing device complexity
Solution Approach 2:
The insulating layer structure with adjustable refractive indices serves multiple functions: it provides electrical insulation, controls optical properties for color point adjustment, and maintains gray scale integrity. This multi-functionality eliminates the need for separate gray scale reduction mechanisms, simplifying the overall device structure
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 design enables the display panel to meet different color point specifications without reducing gray scales, enhancing energy efficiency by effectively managing light reflection and absorption across varying wavelengths.
Implementation Method 1
an absolute value of a difference between a refractive index of the first transparent insulating layer and a refractive index of the first insulating layer is greater than 0.1, and an absolute value of a difference between the refractive index of the first transparent insulating layer and a refractive index of the second insulating layer is greater than 0.1
Implementation Method 2
improve energy efficiency by effectively managing light reflection and absorption across varying wavelengths
Data Source
AI summary
A display panel and a display device are provided. An array substrate of the display panel includes a first substrate, a first insulating layer, a second insulating layer, and a first transparent insulating layer. An absolute value of a difference between a refractive index of the first transparent insulating layer and a refractive index of the first insulating layer is greater than 0.1. An absolute value of a difference between the refractive index of the first transparent insulating layer and a refractive index of the second insulating layer is greater than 0.1. The first transparent insulating layer is added between the first insulating layer and the second insulating layer to cause a large refractive index difference, so color points of the display panel can be adjusted to meet requirements for different color point specifications without reducing gray scales of the display panel.