Patent ID: 9064432
Filing Date: 2015-06-23
Classification: G02F,G09F

Abstract:
1. A display device comprising: a display panel including a front substrate and a back substrate; a back cover positioned in the rear of the display panel; and a backlight unit positioned between the display panel and the back cover, the backlight unit including a plurality of optical sheets, wherein at least first optical sheet of the plurality of optical sheets includes an opening and a first body portion, wherein at least second optical sheet of the other optical sheets except the first optical sheet among the plurality of optical sheets includes a protrusion corresponding to the opening of the first optical sheet and a second body portion, wherein an extension portion is formed in any one of the first optical sheet and the second optical sheet, wherein the opening is formed in the extension portion when the extension portion is formed in the first optical sheet, and the opening is formed in the first body portion when the extension portion is formed in the second optical sheet, wherein the first body portion and the second body portion extend in a first direction, and wherein the extension portion extends from the first body portion in a second direction when the extension portion is formed in the first optical sheet, and the extension portion extends from the second body portion in the second direction when the extension portion is formed in the second optical sheet, the second direction being different from the first direction.