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

專(zhuān)利號(hào)
US10867567B2
公開(kāi)日期
2020-12-15
申請(qǐng)人
SEIKO EPSON CORPORATION(JP Tokyo)
發(fā)明人
Satoshi Yatabe; Naoki Tomikawa
IPC分類(lèi)
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(shuō)明書(shū)

As illustrated in FIG. 12, the liquid crystal device 200 according to this exemplary embodiment includes a liquid crystal panel 250 including a liquid crystal layer 50 held between an element substrate 210 and a counter substrate 220 that are disposed to oppose each other with a sealant 40 interposing between the element substrate 210 and the counter substrate 220. In a display region E1 of the element substrate 210, a plurality of pixel electrodes 15 are disposed. Furthermore, in a peripheral region E2 between the display region E1 and the sealant 40, a first electrode 121, a second electrode 122, and a third electrode 123 are disposed in this order from the side closer to the display region E1 at intervals. The first electrode 121, the second electrode 122, and the third electrode 123 function as a peripheral electrode 120 configured for ion trapping.

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