Display device

Patent metadata

Field	Value
Publication number	US-2017287939-A1
Application number	US-201715469664-A
Country	US
Kind code	A1
Filing date	Mar 27, 2017
Priority date	Mar 31, 2016
Publication date	Oct 5, 2017
Grant date	—

Abstract

According to an aspect, a display device includes: a substrate including a display region and a non-display region surrounding the display region; at least one driver IC including connecting terminals with a first surface fixed to face the non-display region; first wires supplying a signal to the display region; first bumps connected with the first wires; second wires transferring a signal to and from outside; second bumps connected with the second wires; and inspection wires. The connecting terminals of the driver IC include first connecting terminals overlapping the first or second bumps in plan view, and a second connecting terminal not overlapping the first or second bumps in plan view. At least one inspection wire includes a connecting conductor between itself and the second connecting terminal, and at least one fuse portion, a narrower width part of the inspection wire in plan view.

First claim

What is claimed is:

1 . A display device comprising:
a substrate including a display region and a non-display region that is disposed on a periphery of the display region; at least one driver IC including a plurality of connecting terminals, and having a first surface that is fixed to face the non-display region; a plurality of first wires that supply a signal to the display region; a plurality of first bumps electrically connected with the respective first wires; a plurality of second wires that input and output a signal from and to an outside; a plurality of second bumps electrically connected with the respective second wires; and a plurality of inspection wires, wherein the connecting terminals of the at least one driver IC comprise a plurality of first connecting terminals overlapping the respective first bumps or the respective second bumps in plan view, and at least one second connecting terminal not overlapping the first bumps or the second bumps in plan view, and at least one of the inspection wires includes a connecting conductor between itself and the at least one second connecting terminal, and includes at least one fuse portion corresponding to a part of the inspection wire that is narrower in width in plan view.

2 . The display device according to claim 1 , wherein
the connecting terminals are arranged to form a plurality of columns in a longitudinal direction of the at least one driver IC in plan view, and the at least one second connecting terminal overlapping the inspection wires in plan view is arranged in an inside column among the columns in a short direction of the at least one driver IC.

3 . The display device according to claim 1 , wherein
the at least one second connecting terminal, the first connecting terminals, and the at least one second connecting terminal are sequentially arranged in a longitudinal direction of the at least one driver IC in plan view.

4 . The display device according to claim 1 , wherein
the at least one second connecting terminal comprises a plurality of second connecting terminals, and the second connecting terminals, the first connecting terminals, and the second connecting terminals are sequentially arranged in a longitudinal direction of the at least one driver IC in plan view.

5 . The display device according to claim 1 , wherein
the at least one second connecting terminal is closer to a short side of the at least one driver IC than the first connecting terminals are, in a longitudinal direction of the at least one driver IC in plan view.

6 . The display device according to claim 1 , wherein
eight of the inspection wires are pulled out to an outside of the at least one driver IC in plan view, and the at least one inspection wire including the at least one fuse portion extends closer to the first bumps than to the second bumps.

7 . The display device according to claim 1 , wherein
the at least one second connecting terminal comprises a plurality of second connecting terminals, and two of the inspection wires overlap the respective second connecting terminals adjacent to each other in plan view, and the second connecting terminals adjacent to each other are short-circuited inside the at least one driver IC.

8 . The display device according to claim 1 , wherein
two of the inspection wires both overlap the at least one second connecting terminal in plan view.

9 . A display device comprising:
a substrate including a display region and a non-display region that is disposed on a periphery of the display region; at least one driver IC including a plurality of connecting terminals, and having a first surface that is fixed to face the non-display region; a plurality of first wires that supply a signal to the display region; a plurality of first bumps electrically connected with the respective first wires; a plurality of second wires that input and output a signal from and to an outside; a plurality of second bumps electrically connected with the respective second wires; and a plurality of inspection wires, wherein the connecting terminals of the at least one driver IC comprise a plurality of first connecting terminals overlapping the respective first bumps or the respective second bumps in plan view, and a plurality of second connecting terminals not overlapping the first bumps or the second bumps in plan view, and the inspection wires include a connecting conductor between themselves and at least one of the second connecting terminals, and are pulled out to an outside of the at least one driver IC in plan view.

Assignees

• Japan Display Inc

Inventors

• Okamae Tetsuya
• Kobayashi Osamu

Classifications

• H10P74/273

  Interconnections for measuring or testing, e.g. probe pads · CPC title

• H10W90/722

  between stacked chips · CPC title

• H10W72/07254

  changes in dispositions · CPC title

• H10W72/267

  Multiple bump connectors having different functions · CPC title

• H10W72/248

  Top-view layouts, e.g. mirror arrays · CPC title