Blue Phase Liquid Crystal Panel Single Cell Gap Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current transflective mode blue phase liquid crystal displays face manufacturing difficulties due to the need for a double cell-gap structure to achieve consistent phase retardation in transmission and reflection regions.
Innovation Solution
A blue phase liquid crystal panel with a single cell gap is designed, where the distance between adjacent stripe-shaped electrodes in the transmission region is smaller than in the reflection region, or a voltage difference is applied between pixel electrodes to ensure the same phase retardation for light passing through the blue phase liquid crystal layer in both regions, simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a double cell-gap structure is adopted to achieve consistent phase retardation in transmission and reflection regions, then the display quality is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent applies different electrode patterns in different regions of the same cell gap structure. Specifically, the transmission region uses a first electrode pattern while the reflection region uses a second electrode pattern with different characteristics. This allows each region to achieve the required phase retardation locally without requiring different cell gap thicknesses, thus resolving the contradiction between manufacturing precision and device complexity.
2Manufacturing precision
If a double cell-gap structure is adopted to achieve consistent phase retardation in transmission and reflection regions, then the display quality is improved, but the manufacturing difficulty increases
Solution Approach 1:
The patent merges the requirements for different phase retardations into a single cell gap structure by using region-specific electrode patterns. Instead of manufacturing two separate cell gaps with different thicknesses, the invention combines both functional requirements into one uniform cell gap, where the optical performance differentiation is achieved through electrode design rather than structural thickness variation. This significantly simplifies the manufacturing process.
3Manufacturing precision
If different electrode distances are used in transmission and reflection regions, then the phase retardation consistency is achieved, but the electrode structure complexity increases
Solution Approach 1:
The patent segments the electrode structure into region-specific patterns within the same cell gap. The transmission region is assigned a first electrode pattern with specific spacing, while the reflection region is assigned a second electrode pattern with different spacing. This segmentation allows each region to be optimized independently for its specific optical function while maintaining overall structural integration.
Solution Approach 2:
Different electrode patterns are applied to different regions based on their specific optical requirements. The transmission region uses one electrode configuration optimized for light transmission, while the reflection region uses another configuration optimized for light reflection. This local optimization achieves consistent phase retardation across regions without requiring complex overall structural changes.
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 approach allows for a simplified manufacturing process while maintaining the same phase retardation in both regions, enhancing the display quality and viewing angles of the transflective mode blue phase liquid crystal panel.
Implementation Method 1
the light for display in the transmission region and the light for display in the reflection region of a same pixel region generate the same phase retardation after passing through the blue phase liquid crystal layer
Data Source
AI summary
A blue phase liquid crystal panel and a display device provide a transflective mode blue phase liquid crystal panel with a single cell gap so as to simplify the process. The blue phase liquid crystal panel comprises: a first substrate and a second substrate that are disposed opposite to each other so as to form a liquid crystal cell; a blue phase liquid crystal layer between the two substrates; gate lines and data lines arranged to intersect the gate lines to define pixel regions on an inner side of the first substrate. The blue phase liquid crystal panel has a single cell gap, and the pixel regions are divided into transmission regions and reflection regions. The light for display in the transmission region and the light for display in the reflection region of a same pixel region generate the same phase retardation after passing through the blue phase liquid crystal layer.