Single-Substrate LCD with Nanocapsule Layer for Flicker Reduction
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Solution Overview
Problem
Conventional liquid crystal display (LCD) devices face issues with flicker phenomena, low driving voltage, and high power consumption due to the need for separate substrate alignment and the limitations of traditional liquid crystal alignment processes, which also lead to reduced yield and susceptibility to display quality degradation from external pressure or impact.
Innovation Solution
The implementation of a liquid crystal display device with a nanocapsule liquid crystal layer and a single substrate configuration, utilizing a column inversion method for data voltage polarity, which allows for higher driving voltage and reduced power consumption, and eliminates the need for separate liquid crystal alignment, thereby enhancing display stability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate substrate alignment and liquid crystal alignment processes are performed, then liquid crystal display quality can be achieved, but manufacturing complexity increases and yield decreases
Solution Approach 1:
The patent combines the substrate alignment process with the liquid crystal alignment process into a single integrated step. The alignment layer is formed directly on the substrate without requiring separate alignment procedures, thereby reducing manufacturing complexity while maintaining display quality.
Solution Approach 2:
The patent extracts and eliminates the separate liquid crystal alignment process by using a pre-aligned alignment layer that is formed during the substrate manufacturing process. This removes the need for additional alignment steps and reduces overall manufacturing complexity.
2Manufacturing precision
If traditional liquid crystal alignment processes are used, then display quality can be maintained, but power consumption increases due to low driving voltage
Solution Approach 1:
The patent changes the driving voltage parameter by using a single substrate configuration that enables higher voltage application across the liquid crystal layer. This parameter change allows for improved display quality while reducing power consumption through more efficient voltage utilization.
3Device complexity
If constant common voltage is supplied from common line, then circuit simplicity is maintained, but driving voltage is reduced to half
Solution Approach 1:
The patent inverts the traditional voltage application method by using a single substrate configuration where data voltage is applied directly without requiring constant common voltage. This inversion allows full utilization of the data voltage as driving voltage, effectively doubling the usable voltage while maintaining circuit simplicity.
4Manufacturing precision
If gap between substrates is constantly maintained, then display quality is preserved, but device flexibility is reduced due to susceptibility to external pressure
Solution Approach 1:
The patent extracts and eliminates the second substrate from the traditional two-substrate LCD structure, using a single substrate configuration. This removal of the second substrate eliminates the gap maintenance issue while preserving display quality through the alignment layer, thereby significantly improving flexibility and resistance to external pressure.
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 solution effectively improves the driving voltage, reduces power consumption, and enhances display stability by eliminating the need for separate liquid crystal alignment, while also making the LCD device more flexible and resistant to external factors that could affect display quality.
Implementation Method 1
an electric field is generated between the pixel electrode 34 and the common electrode 46. The plurality of liquid crystal molecules 52 of the liquid crystal layer 50 are rearranged according to the electric field
Data Source
AI summary
An LCD device includes first and second electrodes in each of the first and second pixel regions, a first TFT connected to a second gate line and a first data line and configured to supply a first data voltage to the first electrode in the first pixel region, a second TFT connected to the second gate line and a second data line and configured to supply a second data voltage having a level opposite the first data voltage to the second electrode in the first pixel region, a third TFT connected to a fourth gate line and the first data line and configured to supply the first data voltage to the second electrode in the second pixel region, and a fourth TFT connected to the fourth gate line and the second data line and configured to supply the second data voltage to the first electrode in the second pixel region.