Abstract: A display apparatus including a substrate including a display area includes a plurality of pixel areas and a non-display area surrounding the display area, a plurality of pixels including a pixel driving chip provided in each of the plurality of pixel areas of the substrate and a light emission part connected to the pixel driving chip, and a plurality of touch electrodes disposed in the display area to overlap two or more pixels. A first pixel driving chip of two or more pixel driving chips overlapping a corresponding touch electrode of the plurality of touch electrodes is connected to the corresponding touch electrode.

Abstract: In a display system, one tablet terminal transmits control information to another tablet terminal. If the another tablet terminal receives the control information from the one tablet terminal, the another tablet terminal starts executing an application and starts communicating with a projector. The one tablet terminal transmits, to the projector, display instruction information instructing the another tablet terminal to display information. The projector receives the display instruction information from the one tablet terminal and transmits the display instruction information to the another tablet terminal currently connected to the projector. The another tablet terminal displays, on a touch panel, information designated by the display instruction information, if the another tablet terminal receives the display instruction information from the projector while executing the application.

Abstract: A device can include a first transparent display having a at least one pixel, wherein transparency of the at least one pixel is electronically controlled, and a second transparent display configured to emit an image. Selected regions of the image are shown by having regions of the second transparent display corresponding to the selected regions of the image be transparent and regions of the first transparent display corresponding to the selected regions of the image appear opaque.