Cholesteric Liquid Crystal Display Shared Gate Driver
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Solution Overview
Problem
Cholesteric liquid crystal display (CLCD) devices require multiple independent driving circuits for multiple panels, leading to higher costs due to the need for multiple panels to reflect different colors of light.
Innovation Solution
A CLCD device configuration that includes multiple cholesteric liquid crystal panels with shared gate lines and flexible printed circuits, allowing a single gate driver to transmit signals to all panels, reducing the need for multiple independent driving circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple independent driving circuits are used to drive multiple cholesteric liquid crystal panels, then each panel can be driven independently, but the cost and device complexity increase
Solution Approach 1:
The patent merges multiple independent driving circuits into a single shared gate driver that can sequentially drive multiple cholesteric liquid crystal panels. The gate driver is time-division multiplexed across panels, reducing the number of driving circuits from multiple independent units to one shared unit, thereby lowering cost and complexity while maintaining the ability to drive each panel independently through sequential control
2Adaptability or versatility
If multiple independent driving circuits are used for each panel, then each panel can be controlled separately, but the overall cost increases
Solution Approach 1:
The gate driver is designed with universal functionality to drive multiple different types of cholesteric liquid crystal panels with different wavelength ranges. A single gate driver circuit performs the function of multiple independent drivers by time-division multiplexing, making the driving system multi-functional and adaptable to various panel configurations without requiring separate dedicated drivers for each panel
3Ease of manufacture
If multiple panels are stacked to achieve color display, then color display capability is improved, but the number of required driving circuits increases
Solution Approach 1:
The patent combines multiple panel driving functions into a single gate driver through time-division multiplexing. The gate driver sequentially activates different panels at different time intervals, merging the driving functions for multiple color panels into one unified driving circuit, thereby achieving color display capability without proportionally increasing the number of driving circuits
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 configuration enables simultaneous driving of multiple cholesteric liquid crystal panels with different wavelength ranges using a single gate driver, lowering costs and simplifying the circuitry while maintaining effective color display capabilities.
Implementation Method 1
The first cholesteric liquid crystal panel reflects light within a first wavelength range, the second cholesteric liquid crystal panel reflects light within a second wavelength range
Data Source
AI summary
The cholesteric liquid crystal display (CLCD) device includes first and second cholesteric liquid crystal panels that reflect light within different wavelength ranges. Both panels have gate lines that extend from one side to the other. A gate driver is electrically connected to the first panel's gate lines. Additionally, a flexible printed circuit is electrically connected to both the first and second panels' gate lines.