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

專利號(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
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)

The counter substrate 220 of the liquid crystal panel 250 includes a base member 20s, a partition portion 21 provided in the peripheral region E2 on the side, closer to the liquid crystal layer 50, of the base member 20s, a planarizing layer 22, and a counter electrode 23B functioning as a common electrode. The counter electrode 23B is provided throughout the entire display region E1 and opposes the plural pixel electrodes 15 of the element substrate 210 with the liquid crystal layer 50 interposed between the counter electrode 23B and the pixel electrodes 15. In the peripheral region E2 outside the display region E1, the counter electrode 23B does not oppose the peripheral electrode 120 of the element substrate 210 with the liquid crystal layer 50 interposed between the counter electrode 23B and the peripheral electrode 120. Note that, in this exemplary embodiment, the element substrate 210 is an example of the first substrate of the present disclosure, and the counter substrate 220 is an example of the second substrate of the present disclosure.

權(quán)利要求

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