Display device

Disclosed herein are a backlight unit and a display device including the same. The backlight unit and the display device include a frame including a bottom area and a sidewall area extended from the bottom area, a single substrate located in at least one portion on the frame, a plurality of optical assemblies being mounted on the substrate, a reflection sheet located in at least another portion on the frame, and an optical sheet located over the reflection sheet, wherein the reflection sheet comprises a cut portion, both ends of a portion abutting on one side of the substrate being cut. There can be provided a display device which can be easily assembled and has a more uniform display screen. 本申请公开了种背光单元以及包括背光单元的显示器。背光单元和显示器包括：框架，包括底部区域以及从底部区域伸出的侧壁区域；单基板，位于框架上的至少个部分中；多个光学组件，安装在基板上；反射片，位于框架上的至少另部分中；以及光学片，位于反射片上，其中，反射片包括：截断部，邻接基板侧的部分的两端被截断。可以提供种易于组装且具有更均匀的显示屏的显示器。