Liquid Crystal Display Array Substrate with Multi-Electrode Response Time Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal displays experience slow response times in high viscosity liquid crystal layers or low temperature environments, affecting display quality.
Innovation Solution
An array substrate design with multiple pixel units, including first and second pixel electrodes for generating a horizontal electric field to control liquid crystal molecule orientation, and third and fourth pixel electrodes for reversing this orientation, improving response times by enhancing electric field control during rising and falling periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If liquid crystal molecules rely on anchoring force during alignment to return to initial orientation, then the structure is simple, but the falling time increases in high viscosity or low temperature environments
Solution Approach 1:
The patent segments the electrode structure into multiple independent electrodes (first, second, third, and fourth electrodes) arranged in specific directions. This segmentation allows independent control of electric fields in different orientations, enabling separate optimization of rising and falling response times without requiring complex additional components.
Solution Approach 2:
The patent introduces a second direction perpendicular to the first direction for the third and fourth electrodes. This dimensional addition creates a two-dimensional electric field control system, allowing liquid crystal molecules to be manipulated not only in the primary switching direction but also in the recovery direction, thereby reducing falling time without increasing vertical structure complexity.
2Loss of time
If multiple pixel electrodes are added to generate horizontal electric fields for both rising and falling control, then response time improves, but device complexity increases
Solution Approach 1:
The patent designs the electrode system where the first and second electrodes serve dual purposes: they generate horizontal electric fields for both the rising response (dark to bright state) and the falling response (bright to dark state) when activated in different sequences. This multi-functionality reduces the need for completely separate electrode sets, thereby limiting the increase in device complexity while achieving response time improvement.
Solution Approach 2:
The patent implements dynamic control of electrode activation sequences. The first and second electrodes can be activated in different temporal patterns depending on whether the system needs to transition from dark to bright or from bright to dark state. This dynamic switching capability allows a single electrode structure to adapt to different operational requirements, improving response time without permanently increasing structural complexity.
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 solution significantly improves response times in high viscosity or low temperature environments, enhancing display quality by accelerating liquid crystal molecule rotation and reducing power consumption through optimized electric field management.
Implementation Method 1
the first pixel electrode and the second pixel electrode are used to generate a first horizontal electric field to control liquid crystal molecules deflected from an initial direction to a predetermined angle, the third pixel electrode and the fourth pixel electrode are used to generate a second horizontal electric field to control liquid crystal molecules deflected from the predetermined angle to the initial direction
Data Source
AI summary
The present invention discloses a liquid crystal display, a method improving the response time thereof, and an array substrate. The array substrate comprises a substrate and multiple pixel units provided in the array on the substrate. Each said pixel unit comprises a first pixel electrode and a second pixel electrode that are used to generate a first electric field to control liquid crystal molecules deflected from an initial direction to a predetermined angle spaced from each other provided along a first direction, and a third pixel electrode and a fourth pixel electrode that are used to generate a second electric field to control liquid crystal molecules deflected from the predetermined angle to the initial direction spaced from each other provided along a second direction. Compared with the prior art, the present invention can improve the response time of the liquid crystal display, thereby improving the display quality.