Liquid Crystal Panel with Dual Electrode Configuration for Fast Response
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Solution Overview
Problem
Liquid crystal display panels face challenges with long response times due to high viscosity and low temperatures, which slow down the falling time of liquid crystals, leading to image delays.
Innovation Solution
A liquid crystal panel design featuring a first and second substrate with specific electrode configurations, where an electric field perpendicular to the substrate is applied during the rising state and a parallel electric field is applied during the falling state without anchoring force, utilizing a projection structure for the second pixel and common electrodes to enhance the electric field intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If liquid crystal material is used with higher viscosity to improve display quality, then the liquid crystal can maintain stable alignment, but the response time increases and falling time slows down
Solution Approach 1:
The patent divides the single electrode structure into multiple electrodes (first pixel electrode, second pixel electrode, first common electrode, second common electrode) with different functions. The first electrodes control the rising state while the second electrodes control the falling state, allowing independent optimization of each phase's performance characteristics.
Solution Approach 2:
The patent implements dynamic control by switching between different electrode configurations based on the liquid crystal state. During rising, voltage is applied to first electrodes creating vertical electric field; during falling, voltage is applied to second electrodes creating horizontal electric field that eliminates anchoring force effects.
2Stability of the object's composition
If liquid crystal material is used at lower temperatures to improve stability, then the liquid crystal maintains consistent properties, but the falling time increases significantly
Solution Approach 1:
The patent implements dynamic control by switching between different electrode configurations based on the liquid crystal state. During rising, voltage is applied to first electrodes creating vertical electric field; during falling, voltage is applied to second electrodes creating horizontal electric field that eliminates anchoring force effects.
Solution Approach 2:
The patent changes the electric field direction parameter from vertical (during rising) to horizontal (during falling). This parameter change allows the system to overcome temperature-dependent viscosity effects by using the horizontal electric field to actively drive liquid crystal molecules back to initial alignment, bypassing the slow thermal relaxation process.
3Device complexity
If traditional single electrode configuration is used to simplify device structure, then manufacturing is easier, but response time control is insufficient
Solution Approach 1:
The patent divides the single electrode structure into multiple electrodes (first pixel electrode, second pixel electrode, first common electrode, second common electrode) with different functions. The first electrodes control the rising state while the second electrodes control the falling state, allowing independent optimization of each phase's performance characteristics.
Solution Approach 2:
The patent makes the electrode system multi-functional by having different electrode pairs serve different purposes. The first electrode pair (pixel and common) controls liquid crystal alignment during the rising state, while the second electrode pair controls the falling state by eliminating anchoring force effects, allowing one system to perform multiple distinct functions.
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 design significantly reduces the response time of the liquid crystal panel, maintaining fast response times even at extreme low temperatures without image delays, and improves the falling time by eliminating the effect of anchoring force.
Implementation Method 1
an electric field perpendicular to the first substrate is formed between the first pixel electrode and the first common electrode
Implementation Method 2
The rising time is represented as the time of the panel from the dark state into the bright state, which is mainly determined by the speed of the rotation of the liquid crystal under electric field
Implementation Method 3
an electric field parallel to the first substrate is formed between the second pixel electrode and the second common electrode
Implementation Method 4
The falling time is represented as the time of the panel from the bright into the dark state, which is mainly determined by the speed of the liquid crystal turning back to the initial orientation position under the anchoring force while liquid crystal alignment
Data Source
AI summary
The present disclosure discloses liquid crystal panel with short response time and display device. The first pixel electrode and the first common electrode of the liquid crystal panel are respectively provided on the two disparate substrates and corresponding to each other. The second pixel electrode and the second common electrode provided on the first substrate and/or the second substrate with an interval, which are projected between the first substrate and the second substrate, and the second pixel electrode and the second common electrode are insulated from the first pixel electrode and the first common electrode. When the liquid crystal is in the rising state, it only applies voltage to the first pixel electrode and the first common electrode. When the liquid crystal is in the falling state, it only applies voltage to the second pixel electrode and the second common electrode.