LCD Panel Electrode Structure for Response Speed
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
LCD panels face challenges in achieving high transmittance and rapid response due to the dominance of vertical electric field components, which limit the deformation of liquid crystal molecules in the horizontal direction and subsequently affect display performance.
Innovation Solution
The introduction of a specific electrode structure on both substrates, including a first common electrode, a pixel electrode with alternately distributed strip electrodes, and a second common electrode on the upper substrate, enhances the horizontal electric field intensity, improving transmittance and response speed by ensuring adequate electric field action on liquid crystal molecules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional electrode structures with vertical electric field dominance are used, then the structure is simple, but the response speed is slow and transmittance is limited due to restricted liquid crystal deformation in horizontal direction
Solution Approach 1:
The pixel electrode is segmented into multiple strip-shaped electrodes arranged in parallel, creating multiple independent electric field regions. This segmentation enables the generation of horizontal electric field components that facilitate faster liquid crystal response while maintaining overall structural simplicity through regular patterning
Solution Approach 2:
The electrode structure transitions from a conventional single-plane vertical field configuration to a multi-plane configuration with strip electrodes on the lower substrate and corresponding strips on the upper substrate. This dimensional change introduces horizontal electric field components that accelerate liquid crystal deformation and improve response speed
2Illumination intensity
If conventional electrode structures are used, then the device is easy to manufacture, but the transmittance is limited due to insufficient horizontal electric field action on liquid crystal molecules
Solution Approach 1:
The pixel electrode is divided into multiple parallel strip electrodes, creating multiple electric field pathways through the liquid crystal layer. This segmentation increases the effective area for horizontal electric field action, enabling greater liquid crystal deformation and improved light transmittance
Solution Approach 2:
The strip electrode configuration creates localized horizontal electric field regions that specifically target the liquid crystal molecules between adjacent strips. This local quality enhancement ensures adequate electric field action in critical areas, maximizing transmittance improvement
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 increases the transmittance and significantly reduces the response time of the LCD panel, with the transmittance being greater and response time shorter compared to conventional designs, as demonstrated by simulation results.
Implementation Method 1
the electrode structures (4) are used to drive the liquid crystal molecules (3)
Data Source
AI summary
A liquid crystal display (LCD) panel and an LCD device are disclosed. The LCD panel comprises a plurality of pixel units. Each pixel unit includes an upper substrates, a lower substrate and a liquid crystal layer disposed between the upper substrate and the lower substrate. A first common electrode, an insulating layer and a pixel electrode are sequentially disposed on one side of the lower substrate facing the liquid crystal layer. The pixel electrode includes a plurality of first electrodes and second electrodes which have strip structures and are alternately distributed. A second common electrode is disposed on one side of the upper substrate facing the liquid crystal layer. The LCD panel can improve the response speed of liquid crystal molecules and increase the transmittance of the liquid crystal layer when the pixel units are electrified.