Display device and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-11333940-B2
Application number	US-202117223100-A
Country	US
Kind code	B2
Filing date	Apr 6, 2021
Priority date	Oct 1, 2012
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

In a display device having high reliability, even if being a narrow framing type, and a method for manufacturing thereof, having a display panel, being made up with a first substrate 101 and a second substrate 201 , which are adhered with using a seal 301 , a main SOC 302 is disposed like a wall, on a peripheral end portion of the first substrate 101 and the second substrate 201 , and the seal 301 is disposed inwardly of the main SOC 302 . Also, in a method for manufacturing thereof, the main SOC 302 is formed in a region including a cutting plane between the display panel regions neighboring with, and on the cutting plane is made the cutting thereof.

First claim

What is claimed is:

1. A liquid crystal display device comprising:
a first substrate having a first alignment film;
a second substrate having a second alignment film;
a driver circuit; and
a seal contacting the first alignment film and the second alignment film,
wherein
the first substrate has a first region and a second region,
the first region is a region overlapping with an entire of the second substrate,
the second region is a region exposed from the second substrate,
a border between the first region and the second region is a first outside edge of the second substrate,
the driver circuit is mounted on the second region,
the second substrate has a second outside edge, a third outside edge opposite to the second outside edge, and the fourth outside edge opposite to the first outside edge,
the first substrate has a fifth outside edge parallel to the second outside edge, a sixth outside edge parallel to the third outside edge, and a seventh outside edge parallel to the fourth outside edge in the first region,
a first part of the first alignment film overlaps with a part of the second outside edge or a part of the fifth outside edge,
a second part of the first alignment film overlaps with a part of the third outside edge or a part of the sixth outside edge,
a third part of the first alignment film overlaps with a part of the fourth outside edge or the seventh outside edge,
the first alignment film does not overlap the second region,
the first substrate has a glass substrate and an organic passivation film between the glass substrate and the first alignment film,
a groove is formed in the organic passivation film,
the groove overlaps the seal, and extends along the sixth outside edge,
the first substrate has first wirings formed along the sixth outside edge,
a first insulating film covers the first wirings,
the first wirings are located between the glass substrate and the first insulating film,
the first insulating film is between the glass substrate and the organic passivation film,
the first wirings overlap the seal,
the groove overlaps at least one of the first wirings,
the first substrate has second wirings formed along the sixth outside edge,
a second insulating film covers the second wirings,
the second wirings are located between the first insulating film and the second insulating film,
the second insulating film is between the first insulating film and the organic passivation film,
the second wirings overlap the seal,
the second wirings do not overlap the groove, and
the groove is located between two adjacent second wirings.

2. The liquid crystal display device according to claim 1 wherein
a fourth part of the first alignment film along the border does not exist beyond the first outside edge.

3. The liquid crystal display device according to claim 2 , wherein
the first substrate has a display region and a frame portion outside of the display region in the first region,
the seal is provided on the frame region,
the fourth part of the first alignment film along the border is between the first outside edge and the display region.

Assignees

• Japan Display Inc

Inventors

• Hatakeyama Eisuke

Classifications

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/133351

  Manufacturing of individual cells out of a plurality of cells, e.g. by dicing · CPC title

• G02F1/1341

  Filling or closing of cells · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/13454 Primary

  Drivers integrated on the active matrix substrate (G02F1/136277 takes precedence) · CPC title