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Display device

專利號
US12082455B2
公開日期
2024-09-03
申請人
SHARP KABUSHIKI KAISHA(JP Sakai)
發(fā)明人
Fumiyuki Kobayashi
IPC分類
H10K59/126; G09G3/3233; H10K59/131
技術(shù)領(lǐng)域
electrode,layer,transistor,signal,conductor,scanning,dli,film,line,emitting
地域: Sakai

摘要

A display includes: a light-emitting element; a first data signal line to which a signal corresponding to video data is supplied in a vertical scanning period and a signal not corresponding to video data is supplied in an update pause period; a drive transistor configured to control a current value of the light-emitting element; and a conductor electrically connected to a gate electrode of the drive transistor; a shield electrode located between the first data signal line and the conductor and adjacent to each of the first data signal line and the conductor in a plan view.

說明書

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

As illustrated in FIG. 5, the scanning signal line GXn is selected (becomes active Low) in each of the vertical scanning period VT and the update pause period PT, and the scanning signal line GYn is selected (becomes active High) in the vertical scanning period VT while it is not selected during the update pause period PT. The light emission control signal line EMn becomes active High (in a lights-out state) while at least one of the scanning signal lines GXn and GYn is selected. The length of each of the vertical scanning period VT and the update pause period PT is, for example, 1/60 seconds.

In the first embodiment, the shield electrode A1 extending from the scanning signal line GXn suppresses electrical field formation (capacitive coupling) between the data signal line DLi and the conductor LE. Thus, a potential of the conductor LE (and the gate electrode GE) is less likely to vary at timing of switching between the vertical scanning period VT and the update pause period PT (for example, timing at which the potential of the data signal line DLi shifts from the white gray scale level to the applied voltage level). This reduces a luminance difference between a refresh frame period RT and a non-refresh frame period NT in the subpixel SP, as illustrated in FIG. 5. This can suppress flicker (flickering of the screen).

權(quán)利要求

1
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