Abstract: The present invention discloses a bidirectional ultraviolet light emitting diode (UV LED) based on N—ZnO/N—GaN/N—ZnO heterojunction as well as its preparation method. The LED includes: N—ZnO microwires, a N—GaN film, a PMMA protective layer and alloy electrodes; and its preparation method includes the following steps: lay two N—ZnO microwires on the N—GaN film, then spin-coat a PMMA protective layer on the film to fix the N—ZnO microwires until the PMMA protective layer spreads over the N—ZnO microwires, and then place the film on a drying table to solidify the PMMA protective layer; then etch the PMMA protective layer with O2 to expose the N—ZnO microwires, and prepare alloy electrodes on different N—ZnO microwires to construct a N—ZnO/N—GaN/N—ZnO heterojunction to constitute a complete device. The present invention constructs an N/N/N symmetrical structure; the device is composed of N—ZnO and N—GaN, emits light in the ultraviolet region and has a small turn-on voltage.

Abstract: The present invention discloses a bidirectional ultraviolet light emitting diode (UV LED) based on N—ZnO/N—GaN/N—ZnO heterojunction as well as its preparation method. The LED includes: N—ZnO microwires, a N—GaN film, a PMMA protective layer and alloy electrodes; and its preparation method includes the following steps: lay two N—ZnO microwires on the N—GaN film, then spin-coat a PMMA protective layer on the film to fix the N—ZnO microwires until the PMMA protective layer spreads over the N—ZnO microwires, and then place the film on a drying table to solidify the PMMA protective layer; then etch the PMMA protective layer with O2 to expose the N—ZnO microwires, and prepare alloy electrodes on different N—ZnO microwires to construct a N—ZnO/N—GaN/N—ZnO heterojunction to constitute a complete device. The present invention constructs an N/N/N symmetrical structure; the device is composed of N—ZnO and N—GaN, emits light in the ultraviolet region and has a small turn-on voltage.

Abstract: The present disclosure relates to a display module and a mobile terminal. The display module includes a flexible circuit board, a display screen electrically connected to the flexible circuit board, and a drive chip electrically connected to the flexible circuit board and the display screen. The drive chip is located on a first side of the display module that is opposite to a second side of the display module that constitutes a display side of the display screen.

Abstract: The present disclosure relates to an electronic device, display device and method for manufacturing a display device. The display device includes: a flexible OLED layer having at least one edge comprising a curved section and a first body section and a second body section connected at two ends of the curved section, wherein the first body section is located adjacent to a front side of the display device, while the second body section is located far away from the front side of the display device; and a drive chip provided on the second body section.

Abstract: The present disclosure relates to a display module and a mobile terminal. The display module includes a flexible circuit board, a display screen electrically connected to the flexible circuit board, and a drive chip electrically connected to the flexible circuit board and the display screen. The drive chip is located on a first side of the display module that is opposite to a second side of the display module that constitutes a display side of the display screen.

Abstract: A liquid crystal display module and a mobile device are provided. The liquid crystal display module includes: a display function component and a cover glass structure. The display function component is disposed in a receiving space of a middle-frame structure of a mobile device. The cover glass structure includes a front glass structure directly disposed on the display function component. A dimension of the front glass structure matches with the middle-frame structure and the cover glass structure covers a majority of an upper surface of the mobile device.

Abstract: A metal housing of an electronic communication device includes: a metal frame, and a plurality of micro holes. At least some of the plurality of micro holes penetrate the metal frame, with the plurality of micro holes being arranged into at least two rows to form a strip.

Abstract: A liquid crystal display module and a mobile device are provided. The liquid crystal display module includes: a display function component and a cover glass structure. The display function component is disposed in a receiving space of a middle-frame structure of a mobile device. The cover glass structure includes a front glass structure directly disposed on the display function component. A dimension of the front glass structure matches with the middle-frame structure and the cover glass structure covers a majority of an upper surface of the mobile device.

Abstract: A method for processing a device shell, includes: applying an ink layer onto a film to form a membrane; attaching the membrane to an outer surface of the device shell; and removing the film from the membrane attached to the outer surface, such that the ink layer remains on the outer surface.