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Low-voltage driving cholesterol liquid crystal display active matrix and method thereof

A cholesteric liquid crystal and active matrix technology, which is applied in static indicators, instruments, nonlinear optics, etc., can solve the problems of increased difficulty in circuit design and easy peak-to-peak oversize

Inactive Publication Date: 2021-11-26
SOLE OPTOELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, this design method will cause the peak-to-peak value of the gate potential difference of each cholesteric liquid crystal display pixel unit to be too large, so that the difficulty of circuit design increases

Method used

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  • Low-voltage driving cholesterol liquid crystal display active matrix and method thereof
  • Low-voltage driving cholesterol liquid crystal display active matrix and method thereof
  • Low-voltage driving cholesterol liquid crystal display active matrix and method thereof

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Embodiment Construction

[0017] Certain terms are used throughout the description and claims to refer to particular components. It should be understood by those skilled in the art that hardware manufacturers may use different terms to refer to the same component. The description and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" and "including" mentioned in the specification and claims are open-ended terms, so they should be interpreted as "including but not limited to". "About" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. The term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electricall...

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Abstract

The invention discloses a cholesterol liquid crystal display active matrix and a driving method. The cholesterol liquid crystal display active matrix comprises a plurality of cholesterol liquid crystal display pixel units, and the method comprises the following steps: resetting time, determining time and determining time; providing a common-source signal, a control signal and a data signal to the cholesterol liquid crystal display pixel units of the plurality of cholesterol liquid crystal display pixel units, and respectively setting voltages required for resetting the cholesterol liquid crystal display pixel units to the initial state and determining the reflectivity in the reset time and the determined time; cutting off the control signal, and maintaining the common source signal to enable the cholesterol liquid crystal display pixel unit to have at least one reset transition time and a determined transition time, wherein the control signal, the data signal and the common source signal are used for driving the cholesterol liquid crystal display pixel unit.

Description

technical field [0001] The invention refers to an active matrix of a cholesteric liquid crystal display and its driving method, especially an active matrix of a cholesteric liquid crystal display capable of reducing the peak value of a control voltage to reset pixels or determine its reflectivity and its driving method. Background technique [0002] Cholesteric liquid crystals can reflect light of different wavelengths by adjusting the helical pitch of the liquid crystals and have bistable characteristics. Among them, the active matrix of the cholesteric liquid crystal display can change the state of the cholesteric liquid crystal through the modulation of the voltage. In the planar state (Planar), it will reflect light of a specific wavelength, and in the focal conic state (Focal-conic), it will scatter, so it can be used The voltage is used to modulate the reflectivity. When adjusting the liquid crystal state, the reset voltage can be used to drive the liquid crystal to t...

Claims

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Application Information

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IPC IPC(8): G09G3/36G02F1/137
CPCG09G3/3648G09G3/3614G02F1/13718
Inventor 邱钟毅赖梓杰陈仁禄陈科玮黄俊宏连水池
Owner SOLE OPTOELECTRONICS
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