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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)

A first transistor 131 is provided between the first electrode 121 and the driving circuit 115. A second transistor 132 is provided between the second electrode 122 and the driving circuit 115. A third transistor 133 is provided between the third electrode 123 and the driving circuit 115. A gate of each of the first transistor 131, the second transistor 132, and the third transistor 133 is coupled to the control circuit 114. Each of the first transistor 131, the second transistor 132, and the third transistor 133 is constituted, for example, with an N type TFT. Hereinafter, the first transistor 131, the second transistor 132, and the third transistor 133 may be collectively referred to as transistor 130.

In the present exemplary embodiment, the multiplexer 112, the first transistor 131, the second transistor 132, and the third transistor 133 are provided on the element substrate 10 of the liquid crystal panel 110. The display signal output circuit 111, the signal generation circuit 113, the control circuit 114, and the driving circuit 115 are included in the driving IC 103 (see FIG. 1) mounted on the FPC 102 described above. Any of the display signal output circuit 111, the signal generation circuit 113, the control circuit 114, and the driving circuit 115, or part of these circuits may be provided on the element substrate 10.

權(quán)利要求

1
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