公开(公告)号：US20170123134A1

公开(公告)日：2017-05-04

申请号：US15336298

申请日：2016-10-27

Applicant: LG DISPLAY CO., LTD.

Inventor： ChangYul MOON ,  YoungHun JEONG ,  Kiyong YANG ,  Sehyun PARK

IPC: F21V8/00

CPC classification number: G02B6/0036 ,  G02B6/0041 ,  G02B6/0055 ,  G02B6/0061

Abstract: Discussed is a glass light guide plate that is used in a back light unit of a display device. Some features of the glass light guide plate for the back light unit can be improved by optimizing a relationship between a direction of a bubble inside the glass light guide plate and a light source, the sizes of the bubble and a light guide pattern, and so on, and by optimizing an arrangement density of light guide patterns in each region, a kind of light guide pattern ink (IR-curable ink), a curing condition, a refractive index, and so on to be suitable for the material of the glass light guide plate.