A display device includes a light source, a display panel, and an optical sheet. The light source emits light. The display panel displays image. The optical sheet transmits the light directed to the display panel. The optical sheet includes a first optical sheet having a latching component, and at least one second optical sheet at least partially contacting with the first optical sheet. The at least one second optical sheet is sandwiched between the latching component and a specific portion of the first optical sheet other than the latching component.