Liquid crystal display and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016299380-A1
Application number	US-201514940984-A
Country	US
Kind code	A1
Filing date	Nov 13, 2015
Priority date	Apr 10, 2015
Publication date	Oct 13, 2016
Grant date	—

Abstract

Provided is a liquid crystal display including: a first substrate; a wire grid polarizer disposed on the first substrate and including a first region and a second region spaced apart from each other by a stitch line; and a first thin film layer disposed on the wire grid polarizer. The stitch line includes a shape of a curved line or a series of straight lines connected by bends.

First claim

What is claimed is:

1 . A liquid crystal display comprising:
a first substrate; a wire grid polarizer disposed on the first substrate and comprising a first region and a second region spaced apart from each other by a stitch line; and a first thin film layer disposed on the wire grid polarizer, wherein the stitch line comprises a shape of a curved line or a series of straight lines connected by bends.

2 . The liquid crystal display of claim 1 , wherein the wire grid polarizer comprises metal lines.

3 . The liquid crystal display of claim 2 , wherein in the first region and the second region, the metal lines are disposed to have a predetermined width and a predetermined interval.

4 . The liquid crystal display of claim 3 , wherein lengths of the metal lines are different according to a proximity to the stitch line.

5 . The liquid crystal display of claim 4 , wherein the first thin film layer comprises pixels, and
the stitch line crosses a boundary of the pixels.

6 . The liquid crystal display of claim 5 , wherein the stitch line has a shape in which a straight line extends in a diagonal direction and is bent in zigzags.

7 . The liquid crystal display of claim 5 , wherein the stitch line has a shape in which a straight line is bent to form recess portions and convex portions.

8 . The liquid crystal display of claim 1 , further comprising:
a second substrate facing the first substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and a polarizer disposed on a surface of the second substrate.

9 . A method of manufacturing a liquid crystal display, comprising:
forming a metal layer on a first substrate; dropping first resin drops onto a first part of the metal layer; forming first resin patterns by compressing the first resin drops using a mold; dropping second resin drops onto a second part of the metal layer not overlapping the first resin patterns; forming second resin patterns by compressing the second resin drops using the mold; and forming a wire grid polarizer comprising metal lines by etching the metal layer using the first resin patterns and the second resin patterns as a mask, wherein the wire grid polarizer comprises a first region and a second region spaced apart from each other by a stitch line, and the stitch line has a shape of a curved line or a series of straight lines connected by bends.

10 . The method of claim 9 , wherein the first resin patterns form a first resin pattern region corresponding to the first region of the wire grid polarizer, and the second resin patterns form a second resin pattern region corresponding to the second region of the wire grid polarizer.

11 . The method of claim 10 , wherein the first resin pattern region and the second resin pattern region are spaced apart from each other by the stitch line.

12 . The method of claim 11 , wherein lengths of the first resin patterns and the second resin patterns are different according to a proximity to the stitch line.

13 . The method of claim 12 , wherein, in the first region and the second region, the metal lines are disposed to have a predetermined width and a predetermined interval.

14 . The method of claim 13 , wherein lengths of the metal lines disposed in the first region and the second region are different according to a proximity to the stitch line.

15 . The method of claim 14 , further comprising forming a first thin film layer, the first thin film layer comprising pixels on the wire grid polarizer.

16 . The method of claim 15 , wherein the stitch line has a shape in which a straight line extends in a diagonal direction to be bent in zigzags.

17 . The method of claim 15 , wherein the stitch line has a shape in which a straight line is bent to form recess portions and convex portions.

18 . A liquid crystal display comprising:
a first substrate; a wire grid polarizer disposed on the first substrate and comprising a first metal line pattern and a second metal line pattern, the wire grid polarizer being disposed in a pixel; and a thin film layer disposed on the wire grid polarizer, wherein the first metal line pattern is spaced apart from the second metal line pattern to form a gap between the first metal line pattern and the second metal line pattern, and wherein the gap comprises a portion corresponding to a bent line or a curved line.

19 . The liquid crystal display of claim 18 , wherein the bent line or the curved line has a direction not parallel to edges of the pixel.

20 . The liquid crystal display of claim 18 , wherein metal lines of the first metal line pattern and the second metal line pattern have different lengths according to a proximity to the gap.

Assignees

• Samsung Display Co Ltd

Inventors

• Nam Jung Gun
• Jo Gug Rae
• Lee Dae-Young
• Han Kang Soo

Classifications

• G02F2001/133548

  Physics · mapped topic

• G02F1/133528 Primary

  Polarisers · CPC title

• G02B5/3058

  comprising electrically conductive elements, e.g. wire grids, conductive particles · CPC title

• G02F1/133548

  Wire-grid polarisers · CPC title