Abstract: Provided is a battery discharge apparatus, battery discharge system, and battery discharge method which uses a battery as a power source for reverse potential discharge. The battery discharge apparatus includes a discharge processor electrically connected to a first target battery and a second target battery to discharge the first and second target batteries, a first battery loader loaded with the first target battery to electrically connect the first target battery to the discharge processor, and a second battery loader loaded with the second target battery to electrically connect the second target battery to the discharge processor, and the first target battery is discharged by reverse potential discharge using the second target battery.

Abstract: An embodiment discloses an ultraviolet light emitting element including: a light emitting structure including a first conductive semiconductor layer, a second conductive semiconductor layer, an active layer disposed between the first conductive semiconductor layer and the second conductive semiconductor layer, and an etched region in which the first conductive semiconductor layer is exposed; a first insulating layer disposed on the light emitting structure and including a first hole which exposes a portion of the etched region; a first electrode electrically connected to the first conductive semiconductor layer; and a second electrode electrically connected to the second conductive semiconductor layer, wherein the light emitting structure includes an intermediate layer regrown on the first conductive semiconductor layer exposed in the first hole, the first electrode is disposed on the intermediate layer, the etched region includes a first etched region disposed at an inner side and a second etched region disp

Abstract: A display device includes a display unit including pixels connected to data lines and scan lines, first and second temperature sensors for sensing first and second temperatures of the display unit, a data driver configured to generate a data signal configured to be supplied to the data lines using output data, and attached to a first printed circuit board configured to be fixed to a rear surface of the display unit, a timing controller configured to generate the output data using input data, and attached to a second printed circuit board configured to be fixed to the rear surface of the display unit, and a storage having a temperature weight table including a weight corresponding to the first and second temperatures and a plurality of temperature tables including temperature information of the display unit corresponding to an attachment position of the second printed circuit board.

Abstract: A display device includes: a central area having a display area on a substrate; and a peripheral area around the central area; a plurality of pads arranged along one direction in the central area; a plurality of insulating patterns adjacent the plurality of pads; and a slit between the plurality of insulating patterns in the peripheral area, wherein the slit is formed by removing at least a portion of an insulating material of the plurality of insulating patterns.

Abstract: Disclosed are a device and method for preparing fatty acid derivatives and more specifically, a device for preparing fatty acid derivatives including three reactors and a method for effectively preparing fatty acid derivatives. The device for preparing fatty acid derivatives including three reactors enables a stable supply of reactants even if a problem occurs in one reactor, and enables continuous and stable operation because delays in the treatment and purification process do not occur. As a result, the device has effects of increasing productivity and reducing production costs. In other words, by operating three reactors instead of two reactors, it is possible to build a production facility that can be operated continuously without stopping, resulting in increased production and reduced production costs. The reactors are operated at a time interval so that only one ammonia feeder and one ammonia collector may be used for all three reactors.