Double-Side Electrode FFS LCD Panel for Blue-Phase Liquid Crystal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional fringe-field-switching mode liquid crystal display panels face challenges with high driving voltage and low light efficiency, particularly when using blue-phase liquid crystal materials, which require enhanced electric fields for efficient operation.
Innovation Solution
A double-sided fringe-field-switching mode liquid crystal display panel design featuring comb-like electrodes on both substrates with insulating layers, creating a more intense and uniform transverse electric field, reducing driving voltage and response time while improving light-transmittance and viewing angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional single-sided FFS electrode structure is used, then device complexity is reduced, but driving voltage is high and light-transmittance is low
Solution Approach 1:
The patent transitions from a single-sided electrode structure to a double-sided electrode structure, adding the dimension of substrate symmetry. By placing electrode structures on both the first and second substrates, the electric field generation becomes more efficient, reducing the required driving voltage while maintaining manageable device complexity through symmetrical design
2Device complexity
If conventional single-sided FFS electrode structure is used, then device complexity is reduced, but light-transmittance is low
Solution Approach 1:
By adding electrode structures on both substrates (double-sided configuration), the patent creates a more efficient electric field distribution that reduces liquid crystal deflection requirements, thereby improving light-transmittance without significantly increasing overall device complexity
Solution Approach 2:
The patent modifies the electrode structure parameters by introducing comb-like electrode patterns with optimized tooth dimensions and spacing on both substrates. This parameter optimization enhances the transverse electric field intensity, improving light-transmittance while controlling device complexity
3Speed
If blue-phase liquid crystal materials are used, then response time is improved, but driving voltage becomes excessively high
Solution Approach 1:
The double-sided electrode structure creates a more intense and uniform transverse electric field by utilizing both substrates, which efficiently drives the blue-phase liquid crystal material's rapid response while reducing the required driving voltage compared to single-sided structures
Solution Approach 2:
The patent optimizes electrode parameters including tooth width, spacing, and insulation layer thickness to maximize electric field efficiency for blue-phase liquid crystal, achieving fast response times with reduced driving voltage requirements
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 design achieves reduced driving voltage, faster response time, and enhanced light-transmittance, addressing the limitations of blue-phase liquid crystal display panels by forming a denser electric field for improved liquid crystal deflection and display performance.
Implementation Method 1
creating a more intense and uniform transverse electric field
Implementation Method 2
improved liquid crystal deflection and display performance
Data Source
AI summary
Embodiments of the present invention provide a fringe-field-switching mode liquid crystal display panel. The liquid crystal display panel comprises: a first substrate and a second substrate facing each other, and a liquid crystal layer sandwiched between the first substrate and the second substrate; a first lower electrode, a first insulating layer and a first upper electrode, which are formed sequentially on a surface of the first substrate facing the second substrate; and a second lower electrode, a second insulating layer and a second upper electrode, which are formed sequentially on a surface of the second substrate facing the first substrate.