There is provided a display apparatus. The display apparatus includes an electronic display. The display apparatus includes first and second parabolic reflectors coupled together and facing each other. Each reflector has a vertex. The first parabolic reflector has an opening extending therethrough adjacent to the vertex thereof. The second parabolic reflector receives the electronic display adjacent to the vertex thereof.

A display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, and the display unit is configured to display an image and includes pixels.

A watch type terminal including a main body; an analog watch portion including a plurality of mechanical hands coupled to the main body to indicate the time; a touch screen including a hole region disposed adjacent to the analog watch portion and through which a central shaft supporting the rotation of the plurality of mechanical hands is passed; a user input unit disposed on a side surface of the main body and including a plurality of keys; and a controller configured to display a first screen on the touch screen in which a part of the first screen is obstructed by the hole region, and in response to a predetermined input applied to one of the plurality of keys, move the obstructed part of the first screen away from the hole region and display a region beyond an edge of the first screen.

A sequential displaying method is provided. The method includes providing a display device which includes a first display area. The first display area has N first sub-areas that are arranged in sequence, wherein N is positive integer. Then, displayed images in the N first sub-areas are sequentially updated, wherein a time interval of updating the displayed images in two adjacent first sub-areas is 60/N seconds and a frequency for updating a displayed image in each of the first sub-areas is once every 60 seconds. Thus, a method for displaying time information could be improved.

A computerized watch is described that includes a cover that forms an outer surface of the computerized watch, a screen configured to output graphical information for display, a set of physical watch hands positioned between the cover and the screen and configured to present a time of day. One or more computer processors and a memory comprising instructions. The instructions, when executed, cause the one or more computer processors to responsive to determining that the computerized watch is operating in a time display mode, manipulate the set of physical watch hands such that the set of physical watch hands present the time of day by obscuring a portion of a display region of the screen, and responsive to determining that the computerized watch is not operating in the time display mode, manipulate the set of physical watch hands such that the set of physical hands do not obscure the screen.

A display device and an electronic watch including the same are disclosed. In one aspect, the display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, the display unit configured to display an image.

Disclosed is a smart watch which may comprise: a display unit including a display panel displaying an image and a panel frame supporting the display panel; a rotating member including a rotating plate provided with recesses on an outer peripheral surface of the rotating plate, a rotating shaft having one end connected to a center of the rotating plate to rotate the rotating plate, and a driving motor coupled with the other end of the rotating shaft; a control unit to control the display unit and the rotating member; and a support frame to support the display unit and accommodate the rotating member and the control unit.

A display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, the display unit configured to display an image, and the display unit includes pixels.

A computerized watch is described that includes a cover that forms an outer surface of the computerized watch, a screen configured to output graphical information for display, a set of physical watch hands positioned between the cover and the screen and configured to present a time of day. One or more computer processors and a memory comprising instructions. The instructions, when executed, cause the one or more computer processors to responsive to determining that the computerized watch is operating in a time display mode, manipulate the set of physical watch hands such that the set of physical watch hands present the time of day by obscuring a portion of a display region of the screen, and responsive to determining that the computerized watch is not operating in the time display mode, manipulate the set of physical watch hands such that the set of physical hands do not obscure the screen.

A multifunctional system for a wristwatch comprising: a dial surface having a plurality of spatially distinct displays; each display including an electro-optical dial portion being configured to display an information digitally, wherein the electro-optical dial portions are on a single electro-optical digital display device; each display having a mechanical analogic display device to display an information analogically and including at least one mechanical mobile; the multifunctional system further including a controller configured for controlling the analogic display devices and the electro-optical dial portions; and a selection means for selecting at least one display function from a plurality of display functions such that the controller controls at least one of the electro-optical dial portions in combination with one of the analogic display device for displaying the selected display function; wherein at least one of the electro-optical dial portions spatially overlaps at least one of the other electro-optical dial portions.