U-Shaped Coplanar Electrode for Liquid Crystal Driving Voltage Reduction
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Solution Overview
Problem
Conventional liquid crystal display technologies, particularly in-plane-switching (IPS), face challenges in reducing driving voltage to increase horizontal electric field intensity, leading to high power consumption due to limited transverse electric field components and difficulty in forming vertical electric fields, which results in excessive energy consumption for liquid crystal alignment.
Innovation Solution
A U-shaped coplanar electrode unit with high aspect ratio side portions is introduced, allowing for increased horizontal electric field intensity with lower driving voltage by configuring the electrodes in a U-shape with a base and side portions that form a three-dimensional structure, enabling effective electric field distribution across the liquid crystal layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional IPS electrode configuration is used, then the structure is simple and easy to manufacture, but the horizontal electric field intensity is limited and driving voltage must be increased
Solution Approach 1:
The patent transitions from conventional planar electrode configuration to a three-dimensional U-shaped electrode structure. The U-shaped electrode includes vertical side portions that extend upward from the substrate, creating electric field components in the vertical direction that induce horizontal electric fields within the liquid crystal layer. This dimensional change allows for enhanced field intensity without proportionally increasing driving voltage.
Solution Approach 2:
The patent modifies the electrode geometry parameters by creating U-shaped structures with specific width and height dimensions. The side portions have optimized dimensions that maximize the horizontal electric field intensity while controlling the required driving voltage. This parameter optimization enables achieving sufficient field intensity with reduced power consumption compared to conventional planar electrodes.
2Power
If driving voltage is increased to enhance horizontal electric field intensity, then the electric field intensity increases, but power consumption increases excessively
Solution Approach 1:
By introducing vertical dimension through U-shaped electrode side portions, the patent generates electric field components that efficiently induce horizontal fields in the liquid crystal layer. This three-dimensional configuration enhances field intensity without requiring proportional increases in driving voltage, thereby reducing power consumption.
Solution Approach 2:
The optimized U-shaped electrode dimensions create a more efficient electric field distribution pattern. The specific geometry parameters maximize the horizontal field intensity generated per unit of driving voltage, improving power efficiency while achieving the required field strength for liquid crystal alignment.
3Power
If conventional planar electrodes are used, then manufacturing is simple, but the electric field distribution is limited and cannot form vertical direction fields
Solution Approach 1:
The U-shaped electrode structure adds vertical dimension to the electrode configuration, enabling formation of electric field components in multiple directions. The vertical side portions generate field components that induce horizontal fields within the liquid crystal layer, achieving superior field distribution capability.
Solution Approach 2:
The specific U-shaped geometry with optimized width and height parameters creates an efficient electric field distribution pattern. This geometric modification enables multi-directional field components while maintaining a relatively simple single-electrode structure, balancing complexity and performance.
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 U-shaped coplanar electrode unit significantly reduces the required driving voltage for liquid crystal alignment, achieving higher transmittance with lower power consumption compared to conventional IPS technologies, and can be applied in various industrial fields beyond liquid crystal displays.
Implementation Method 1
The technical means of using electric field to control the alignment of liquid crystal molecules and change the refraction angle of backlight
Data Source
AI summary
A U-shaped unit and a liquid crystal element with U-shaped coplanar electrode units provided by the invention are capable of increasing a horizontal electric field intensity in a power supply state, so that when the invention is applied to be used as a liquid crystal driving element, a required horizontal electric field intensity can be achieved with a lower driving voltage to reduce a required driving power when the liquid crystal element is used as a display screen, thereby achieving an effect of power saving.