Display Panel With Sequential Penetration Rate Liquid Crystals
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Solution Overview
Problem
Multi-domain Vertical Alignment (MVA) liquid crystal displays experience color shift and grayscale whitening at large viewing angles due to the multiple region arrangement of liquid crystal molecules, which affects image quality.
Innovation Solution
A display panel design with multiple transparent areas injected with liquid crystal materials of different penetration rates, where the penetration rates increase sequentially, improving color shift compensation and pixel penetration rate, and utilizing a simpler manufacturing process compared to traditional voltage division methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple region arrangement of liquid crystal molecules is used to enhance visual range, then visual angle is improved, but penetration rate decreases and color shift occurs at large viewing angles
Solution Approach 1:
The patent applies local quality by dividing the pixel into multiple transparent areas (first, second, and third transparent areas) with different liquid crystal materials having different penetration rates. Each transparent area has a specific liquid crystal material assigned to it based on its position and function, creating local variations in optical properties to compensate for color shift while maintaining overall visual range enhancement.
2Adaptability or versatility
If multiple region arrangement of liquid crystal molecules is used to enhance visual range, then visual angle is improved, but grayscale whitening appears at large viewing angles
Solution Approach 1:
The patent changes the parameter of liquid crystal material penetration rate across different transparent areas. By selecting liquid crystal materials with different penetration rates for the first, second, and third transparent areas, the system optimizes light transmission characteristics to reduce grayscale whitening at large viewing angles while preserving the wide visual angle benefits of the multi-region arrangement.
3Object-affected harmful factors
If liquid crystal materials with different penetration rates are used in different transparent areas, then color shift is suppressed, but device complexity increases
Solution Approach 1:
The patent segments the pixel into multiple transparent areas (first, second, and third transparent areas) that can be independently filled with different liquid crystal materials. This segmentation allows for targeted optimization of color shift compensation in different regions while maintaining a relatively simple overall structure that can be manufactured using conventional 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
The display panel effectively suppresses grayscale whitening and color shift at large viewing angles by optimizing the penetration rates of liquid crystal materials in different transparent areas, enhancing image quality and reducing manufacturing complexity.
Implementation Method 1
Due to axial light transmission characteristics of liquid crystal molecules of a liquid crystal display (LCD), LCDs have a new solution to overcome technical problems of a large visual angle color cast
Implementation Method 2
when the voltage is applied to change liquid crystal molecules as a horizontal state to passes through backlight, the penetrated speed of the backlight is faster
Data Source
AI summary
This application discloses a display panel, a manufacturing method thereof, and a display device. The display panel includes a first substrate, a second substrate parallel arranged to the first substrate, a pixel unit formed between the first substrate and the second substrate. The pixel unit includes at least two kinds of transparent areas and multiple liquid crystal materials injected in the transparent areas. A penetration rate of each of the liquid crystal materials is injected into the transparent areas are different. the liquid crystal materials include a first liquid crystal material, a second liquid crystal material, and a third liquid crystal material. A penetration rate of the first liquid crystal material, the second liquid crystal material, and the third liquid crystal material increases in sequence.