A display screen assembly for an electronic device, the display screen assembly comprising: a cover plate; a display screen having a top surface joined with a lower surface of the cover plate, a width of the display screen being larger than a width of the cover plate, and the cover plate having a side edge indented inwards relative to the display screen; and a decoration enclosure having a first joining part and a second joining part bending from the first joining part, the second joining part being joined with the side edge of the cover plate and configured to shield a non-display area of the display screen; characterised by further comprising: a bracket having a top portion and a side wall, wherein the top portion of the bracket is joined with a bottom surface of the display screen, and wherein the first joining part of the decoration enclosure is joined with the side wall of the bracket; a rear cover for the electronic device, wherein the rear cover is configured to couple to the bracket or the decoration enclosure to define an accommodating space for receiving a battery, wherein an area of an upper surface of the cover plate is less than an area of the lower surface of the cover plate, and wherein the cover plate is configured as a touch-screen cover plate comprising: a touch panel having a touch control circuit and configured to achieve a touch operation of the display screen assembly; and a protection cover sheet disposed on the touch panel and configured to protect the touch panel from being damaged due to direct touch operation on the touch panel. a cover plate; a display screen having a top surface joined with a lower surface of the cover plate, a width of the display screen being larger than a width of the cover plate, and the cover plate having a side edge indented inwards relative to the display screen; and a decoration enclosure having a first joining part and a second joining part bending from the first joining part, the second joining part being joined with the side edge of the cover plate and configured to shield a non-display area of the display screen; characterised by further comprising: a bracket having a top portion and a side wall, wherein the top portion of the bracket is joined with a bottom surface of the display screen, and wherein the first joining part of the decoration enclosure is joined with the side wall of the bracket; a rear cover for the electronic device, wherein the rear cover is configured to couple to the bracket or the decoration enclosure to define an accommodating space for receiving a battery, wherein an area of an upper surface of the cover plate is less than an area of the lower surface of the cover plate, and wherein the cover plate is configured as a touch-screen cover plate comprising: a touch panel having a touch control circuit and configured to achieve a touch operation of the display screen assembly; and a protection cover sheet disposed on the touch panel and configured to protect the touch panel from being damaged due to direct touch operation on the touch panel. a bracket having a top portion and a side wall, wherein the top portion of the bracket is joined with a bottom surface of the display screen, and wherein the first joining part of the decoration enclosure is joined with the side wall of the bracket; a rear cover for the electronic device, wherein the rear cover is configured to couple to the bracket or the decoration enclosure to define an accommodating space for receiving a battery, wherein an area of an upper surface of the cover plate is less than an area of the lower surface of the cover plate, and wherein the cover plate is configured as a touch-screen cover plate comprising: a touch panel having a touch control circuit and configured to achieve a touch operation of the display screen assembly; and a protection cover sheet disposed on the touch panel and configured to protect the touch panel from being damaged due to direct touch operation on the touch panel. a touch panel having a touch control circuit and configured to achieve a touch operation of the display screen assembly; and a protection cover sheet disposed on the touch panel and configured to protect the touch panel from being damaged due to direct touch operation on the touch panel.