Abstract: A display device includes a substrate and a plurality of unit pixels disposed on the substrate. Each unit pixel includes a plurality of sub-pixels, a plurality of light sensing pixels, and a plurality of partition wall members. Each of the sub-pixels includes a light emitting element that emits light and a light emitting area from which the light is emitted. Each of the light sensing pixels includes a light receiving element that outputs a sensing signal corresponding to the light and a light receiving area that receives the light. In a plan view, each of the partition wall members surrounds the corresponding light receiving area and overlaps at least some of the sub-pixels.

Abstract: An unmanned aerial vehicle has a main body, a plurality of propeller connection parts extending from at least one side surface of the main body by a specific length, a plurality of propellers respectively connected to ends of the plurality of propeller connection parts, and a plurality of cameras mounted on at least one surface of the main body. A first camera interposed between the plurality of propeller connection parts among the plurality of cameras is disposed spaced from a center point of the main body by a distance of a first size. A first virtual straight line connecting a center point of a first propeller disposed adjacent to the first camera among the plurality of propellers to a center point of the main body has a length of a second size.

Abstract: An unmanned aerial vehicle has a main body, a plurality of propeller connection parts extending from at least one side surface of the main body by a specific length, a plurality of propellers respectively connected to ends of the plurality of propeller connection parts, and a plurality of cameras mounted on at least one surface of the main body. A first camera interposed between the plurality of propeller connection parts among the plurality of cameras is disposed spaced from a center point of the main body by a distance of a first size. A first virtual straight line connecting a center point of a first propeller disposed adjacent to the first camera among the plurality of propellers to a center point of the main body has a length of a second size.

Abstract: An apparatus including a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit, and a second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit. The at least one slit may have a thickness that is less than a wavelength of sound emitted.