Stereoscopic image display and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016209667-A1
Application number	US-201615085502-A
Country	US
Kind code	A1
Filing date	Mar 30, 2016
Priority date	Nov 30, 2012
Publication date	Jul 21, 2016
Grant date	—

Abstract

A stereoscopic image display and a method for manufacturing the same are disclosed. The stereoscopic image display includes a display panel, a polarizing plate positioned on a display surface of the display panel, a patterned retarder film positioned on the polarizing plate, and a pattern layer positioned between the display surface of the display panel and the polarizing plate. The pattern layer has a pattern groove provided with an air layer therein. The pattern groove has a wide lower part contacting the display surface of the display panel and a narrow upper part contacting the polarizing plate.

First claim

1 - 8 . (canceled)

9 . A method for manufacturing a stereoscopic image display comprising:
forming a display panel; forming a three-dimensional (3D) film including a patterned retarder film, a polarizing plate, and a pattern layer; positioning a mold having an embossment including a plurality of peaks and valleys on the pattern layer; closely positioning the mold on the pattern layer, so that the plurality of peaks and valleys are formed on the pattern layer in the form of an intaglio; removing the mold and forming an adhesive on the pattern layer so that the pattern layer has a pattern groove provided with an air layer inside the intaglio; and positioning the adhesive so that it is opposite to a display surface of the display panel, and attaching the 3D film to the display surface of the display panel.

10 . The method of claim 9 , wherein the pattern groove has a wide lower part contacting the display surface of the display panel and a narrow upper part contacting the polarizing plate.

11 . The method of claim 9 , wherein the pattern groove has a triangular cross section,
wherein three sides of the triangular pattern groove have the same length, or a length of one of the three sides is different from lengths of the other two sides.

12 . The method of claim 9 , wherein the pattern groove is formed at a position corresponding to a pattern separator for separating a first retarder pattern layer and a second retarder pattern layer of the patterned retarder film.

13 . The method of claim 12 , wherein the pattern groove includes a first pattern groove positioned at a position corresponding to the pattern separator and at least one pair of second pattern grooves positioned on both sides of the first pattern groove.

14 . The method of claim 13 , wherein the first pattern groove has a triangular shape,
wherein the at least one pair of second pattern grooves each have a right-angled triangle shape, wherein two sides of each second pattern groove contacting the first pattern groove form a right angle.

15 . The method of claim 9 , wherein when the pattern layer is formed of a resin-based material, after the mold is closely positioned on the pattern layer, ultraviolet light is irradiated onto the mold to harden the pattern layer.

Assignees

• Lg Display Co Ltd

Inventors

• Lee Donghoon
• Ryu Sungpil

Classifications

• G02B30/36

  using refractive optical elements, e.g. prisms, in the optical path between the images and the observer · CPC title

• G02B30/25 Primary

  using polarisation techniques · CPC title

• G02B30/27

  involving lenticular arrays · CPC title

• Y10T29/49002

  Electrical device making · CPC title

• B29C65/48

  using adhesives {, i.e. using supplementary joining material; solvent bonding} · CPC title