LCD Pixel Electrode Protrusions for Texture Control
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Solution Overview
Problem
Liquid crystal display panels with vertically-aligned mode suffer from quality degradation due to irregular textures caused by the interaction of tilt direction determining members, leading to compromised viewing angles and display quality.
Innovation Solution
The design includes pixel electrodes with oblique lines and protrusions that form a separation space with a singular point controlling the texture of liquid crystals, where the width of the separation space gradually reduces and increases, ensuring symmetrical and point-symmetric arrangements to stabilize the liquid crystal orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cutting units or protrusions are formed on the electrical field generation electrode to increase viewing angle, then the tilting direction of liquid crystal molecules can be spread in various directions, but an irregular texture is generated in the center region where multiple tilt direction determining members affect each other
Solution Approach 1:
The pixel electrode is divided into multiple regions with different tilting direction determining members (cutting units or protrusions) arranged in a specific pattern. Each region has controlled influence range, preventing overlapping effects that cause irregular textures while maintaining various tilting directions for wide viewing angle
Solution Approach 2:
Different regions of the pixel electrode are assigned different tilting direction determining members with specific orientations. The cutting units or protrusions are strategically positioned to create localized tilting effects that collectively achieve wide viewing angle without causing center region irregularities
2Adaptability or versatility
If multiple tilt direction determining members are disposed to spread liquid crystal tilting directions, then viewing angle is increased, but the interaction between members causes irregular texture in the center region
Solution Approach 1:
The tilting direction determining members are arranged with asymmetric orientations relative to the pixel electrode center. This asymmetric arrangement prevents symmetric overlapping of influence zones that would create regular patterns, instead distributing the liquid crystal tilting more uniformly to avoid irregular textures
Solution Approach 2:
The problem of center region irregularity is solved by considering the spatial distribution in multiple dimensions. The cutting units or protrusions are positioned and oriented in specific angular relationships, creating a three-dimensional control pattern that prevents harmful interactions while maintaining viewing angle benefits
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 prevents quality degradation by stabilizing the texture of liquid crystals, enhancing viewing angles and overall display quality by ensuring regular and controlled liquid crystal orientation.
Implementation Method 1
an electric field is generated on the liquid crystal layer by applying a voltage to the field generation electrodes, and thus, the direction of liquid crystal molecules in the liquid crystal layer is determined
Data Source
AI summary
A liquid crystal display panel that includes a number of pixel electrodes formed on a substrate and are located in a pixel region defined by gate lines and data lines that cross the gate lines. Each of the pixel electrodes located in the pixel region includes a number of sides, and at least one of the sides includes oblique lines and a protrusion formed by the oblique lines, and the pixel electrodes located in the pixel region and adjacent to each other in a first direction form a separation space that includes at least one protrusion, and a width of the separation space gradually reduces and gradually increases in a second direction crossing the first direction, and a singular point that controls the texture of liquid crystals is located at the narrowest width of the separation space.