Display device comprising first and second light guide plates having recessed patterns and flat surfaces that face each other to form first and second empty spaces wherein the second empty space is narrower than the first empty space

Patent metadata

Field	Value
Publication number	US-8928839-B2
Application number	US-201414297533-A
Country	US
Kind code	B2
Filing date	Jun 5, 2014
Priority date	Sep 16, 2009
Publication date	Jan 6, 2015
Grant date	Jan 6, 2015

Abstract

A display device includes a liquid crystal display panel that varies a phase of polarized light via liquid crystal molecules, wherein second recessed patterns of a second light guide plate are directly faced with first recessed patterns of a first light guide plate to form a first empty space, and wherein first flat surfaces of the first light guide plate are directly faced with second flat surfaces of the second light guide plate to form a second empty space narrower than the first empty space.

First claim

What is claimed is:

1. A display device, comprising:
a liquid crystal display panel that varies a phase of polarized light via liquid crystal molecules;
a first light guide plate including an incident surface, an upper surface and a bottom surface, the bottom surface having a plurality of first recessed patterns and first flat surfaces disposed between the first recessed patterns;
a second light guide plate including an upper surface and a bottom surface, the upper surface hav…

Assignees

• Lg Display Co Ltd

Inventors

• Park Se Hong
• Park Jae Seok
• Lee Kyung Ha

Classifications

• G02B6/0076 Primary

  Physics · mapped topic

• G02B6/0056

  Physics · mapped topic

• G02F1/1335 Primary

  Physics · mapped topic

• G02F1/133615

  Physics · mapped topic

• G02F2203/01

  Physics · mapped topic