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Liquid crystal device, liquid crystal device driving method, and electronic apparatus

專利號
US10867567B2
公開日期
2020-12-15
申請人
SEIKO EPSON CORPORATION（JP Tokyo）
發(fā)明人
Satoshi Yatabe; Naoki Tomikawa
IPC分類
G09G3/36; G02F1/1343
技術(shù)領(lǐng)域
potential,electrode,signal,driving,crystal,com,in,ac,liquid,polarity
地域： Tokyo

摘要

A liquid crystal device includes, peripheral electrodes including three electrodes for ion trapping, and a transistor coupled to each of the three electrodes. A common signal (COM signal) that varies between a first potential and a second potential in a first period is applied to a counter electrode. A driving signal that varies between a third potential and a fourth potential is input to the transistor. The driving signal is coupled to or uncoupled from the peripheral electrodes by the transistor in a unit of a duration equal to or less than ? of the first period. AC signals varying between a positive-polarity potential and a negative-polarity potential, with a potential of the common signal being a reference, in a second period longer than the first period, are applied to the three electrodes of the peripheral electrodes, in a state where phases of the AC signals are shifted mutually.

說明書

A driving method for a liquid crystal device according to an aspect of the present disclosure is a driving method for a liquid crystal device including an electro-optical material held between a pair of substrates opposing mutually with a sealant interposed therebetween, the liquid crystal device including, a pixel electrode disposed in a display region of the liquid crystal device, a common electrode disposed opposing the pixel electrode, and a first electrode, a second electrode, and a third electrode disposed between the sealant and the display region at different intervals from the display region. The driving method includes, supplying, to the common electrode, a common signal varying between a first potential and a second potential, which is lower than the first potential, in a first period, supplying, to the first electrode, a first AC signal varying in a second period different from the first period, supplying, to the second electrode, a second AC signal having a phase different from the first AC signal, and supplying, to the third electrode, a third AC signal having a phase different from those of the first AC signal and the second AC signal.

權(quán)利要求

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