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Display device

專(zhuān)利號(hào)
US12082455B2
公開(kāi)日期
2024-09-03
申請(qǐng)人
SHARP KABUSHIKI KAISHA（JP Sakai）
發(fā)明人
Fumiyuki Kobayashi
IPC分類(lèi)
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(shuō)明書(shū)

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

The disclosure relates to a display device.

BACKGROUND ART

PTL 1 discloses a display device including a light-emitting element, the display device having a mode in which refreshing (update of display data) is performed at a high frequency and a mode in which refreshing is performed at a low frequency (low-frequency driving).

CITATION LIST Patent Literature

    • PTL 1: JP 2018-72780 A

SUMMARY Technical Problem

In such low-frequency driving, a luminance difference is generated between a frame period in which refreshing is performed and a frame period in which refreshing is not performed, which may be visually recognized as flicker (flickering of a screen).

Solution to Problem

A display device according to an aspect of the disclosure 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; a conductor electrically connected to a gate electrode of the drive transistor; and 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.

權(quán)利要求

1
The invention claimed is:1. A display device comprising: 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; 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, a silicon film; a first metal layer at an upper layer compared to the silicon film; a second metal layer at an upper layer compared to the first metal layer; an oxide semiconductor film at an upper layer compared to the second metal layer; a third metal layer at an upper layer compared to the oxide semiconductor film; and a fourth metal layer at an upper layer compared to the third metal layer a fourth metal layer at an upper layer compared to the third metal layer;a transistor; anda set transistor having an electrode directly connected to the gate electrode of the drive transistor, and each of the transistor and the set transistor having a gate electrode directly connected to a corresponding scanning signal line,wherein the gate electrode of the drive transistor is connected to a drain electrode of the drive transistor via the set transistor and is connected to an initialization signal line via the transistor, and the shield electrode and the silicon film do not overlap each other in a plan view.2. The display device according to claim 1, wherein the shield electrode configured to suppress electrical field formation between the first data signal line and the conductor.3. The display device according to claim 1, wherein the gate electrode of the drive transistor is included in the first metal layer, the first data signal line is included in the fourth metal layer, and the conductor is included in the second metal layer.4. The display device according to claim 3, wherein the shield electrode is included in the first metal layer or the third metal layer.5. The display device according to claim 4, further comprising: a first scanning signal line; a second data signal line to which a signal corresponding to video data is supplied in the vertical scanning period and a signal not corresponding to video data is supplied in the update pause period; and a write transistor including a gate electrode connected to the first scanning signal line, wherein a source electrode of the drive transistor is connected to the second data signal line via the write transistor, and the first scanning signal line is selected in each of the vertical scanning period and the update pause period.6. The display device according to claim 5, wherein the first scanning signal line is included in the first metal layer, and the shield electrode extends from the first scanning signal line.7. The display device according to claim 6, further comprising an island-shaped electrode formed in the fourth metal layer, the island-shaped electrode overlapping with the shield electrode, wherein the shield electrode and the island-shaped electrode are connected to each other through a contact hole.8. The display device according to claim 6, further comprising: a second scanning signal line;wherein the set transistor include a gate electrode connected to the second scanning signal line, andthe second scanning signal line is selected in the vertical scanning period but is not selected in the update pause period.9. The display device according to claim 4, further comprising a third scanning signal line included in the third metal layer, wherein the shield electrode extends from the third scanning signal line.10. The display device according to claim 3, wherein the first data signal line and a conductor portion of the silicon film are connected to each other through a contact hole, and the shield electrode is located between the contact hole and the conductor in a plan view.11. The display device according to claim 3, wherein a conductor portion of the oxide semiconductor film is provided to be in contact with the conductor.12. The display device according to claim 1, wherein the signal not corresponding to the video data is a constant potential signal.
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