A display for a multi-function keypad, comprising: a display panel comprising a plurality of discrete display regions arranged in a matrix pattern and a non-display region surrounding the plurality of display regions; a circuit board on the display panel, the circuit board comprising a plurality of openings corresponding to the plurality of display regions, and a plurality of keys at regions of the circuit board adjacent peripheral edges of the plurality of openings, the regions of the circuit board corresponding to the non-display region; and a pad on the circuit board, the pad comprising a plurality of transparent windows corresponding to the plurality of openings, and a plurality of pressing units at regions of the pad adjacent peripheral edges of the transparent windows, the regions of the pad corresponding to the plurality of keys; wherein the plurality of display regions each comprise at least one pixel and wherein no pixels are formed in the non-display region; wherein each of the plurality of display regions comprises: at least one first electrode extending in a first direction; at least one second electrode extending in a second direction crossing the at least one first electrode; at least one light emitting layer; and at least one transistor coupled to the at least one first electrode, wherein the at least one light emitting layer is at a crossing region between the at least one first electrode and the at least one second electrode, and the at least one light emitting layer, the at least one first electrode, the at least one second electrode and the at least one transistor define one of the at least one pixels; wherein each of the plurality of display regions further comprises at least one first pixel definition layer formed between two adjacent light emitting layers, the at least one first pixel definition layer being thicker than the two adjacent emitting layers, wherein the non-display region comprises at least one second pixel definition layer that is thicker than the at least one light emitting layer and wider than the at least one first pixel definition layer, and wherein the plurality of keys of the circuit board are at regions of the circuit board corresponding to the at least one second pixel definition layer. a display panel comprising a plurality of discrete display regions arranged in a matrix pattern and a non-display region surrounding the plurality of display regions; a circuit board on the display panel, the circuit board comprising a plurality of openings corresponding to the plurality of display regions, and a plurality of keys at regions of the circuit board adjacent peripheral edges of the plurality of openings, the regions of the circuit board corresponding to the non-display region; and a pad on the circuit board, the pad comprising a plurality of transparent windows corresponding to the plurality of openings, and a plurality of pressing units at regions of the pad adjacent peripheral edges of the transparent windows, the regions of the pad corresponding to the plurality of keys; wherein the plurality of display regions each comprise at least one pixel and wherein no pixels are formed in the non-display region; wherein each of the plurality of display regions comprises: at least one first electrode extending in a first direction; at least one second electrode extending in a second direction crossing the at least one first electrode; at least one light emitting layer; and at least one transistor coupled to the at least one first electrode, wherein the at least one light emitting layer is at a crossing region between the at least one first electrode and the at least one second electrode, and the at least one light emitting layer, the at least one first electrode, the at least one second electrode and the at least one transistor define one of the at least one pixels; wherein each of the plurality of display regions further comprises at least one first pixel definition layer formed between two adjacent light emitting layers, the at least one first pixel definition layer being thicker than the two adjacent emitting layers, wherein the non-display region comprises at least one second pixel definition layer that is thicker than the at least one light emitting layer and wider than the at least one first pixel definition layer, and wherein the plurality of keys of the circuit board are at regions of the circuit board corresponding to the at least one second pixel definition layer. at least one first electrode extending in a first direction; at least one second electrode extending in a second direction crossing the at least one first electrode; at least one light emitting layer; and at least one transistor coupled to the at least one first electrode, wherein the at least one light emitting layer is at a crossing region between the at least one first electrode and the at least one second electrode, and the at least one light emitting layer, the at least one first electrode, the at least one second electrode and the at least one transistor define one of the at least one pixels; wherein each of the plurality of display regions further comprises at least one first pixel definition layer formed between two adjacent light emitting layers, the at least one first pixel definition layer being thicker than the two adjacent emitting layers, wherein the non-display region comprises at least one second pixel definition layer that is thicker than the at least one light emitting layer and wider than the at least one first pixel definition layer, and wherein the plurality of keys of the circuit board are at regions of the circuit board corresponding to the at least one second pixel definition layer.