Abstract: An organic light emitting device including a first electrode; a second electrode provided opposite to the first electrode; and one or more organic material layers provided between the first electrode and the second electrode, wherein one or more of the one or more organic material layers include a compound of Chemical Formula 1 and a compound of Chemical Formula 2.

Abstract: Provided provides a system for cleaning a hull of a ship, comprising: a cleaning robot for cleaning outer surface of a hull of a ship and introduce seawater including contaminants removed from the outer surface of the hull during cleaning process to the inside of the cleaning robot; and a purifying device connected to the cleaning robot via a hose member, for filtering and purifying the seawater introduced together with the contaminants from the cleaning robot via the hose member.

Abstract: Disclosed herein relates to a secondary battery, including: a cell case including a cap plate, wherein the cell case has a hexahedral shape and accommodates an electrode assembly; a positive terminal and a negative terminal spaced apart from each other and disposed on a top surface of the cell case; a terminal structure comprising a terminal body coupled to the top surface of the cell case and one or more surfaces extending from the top surface while covering the positive or negative terminal, and an extension terminal electrically connected to the positive or negative terminal and exposed on any one surface of the terminal body except the top surface; and an extension wire electrically connecting the extension terminal to the positive or negative terminal and forming a joint part with the positive or negative terminal, the joint part being insulated from outside of the secondary battery.

Abstract: An information display apparatus may include a processor configured to display a display object in augmented reality; and a storage configured to store data and algorithms driven by the processor, wherein the processor determines a position of the display object by use of at least one of a total number of lanes or a number of lanes in a road in a driving direction of a host vehicle, possible traveling direction information for each lane, and driving direction information related to the host vehicle, and the information display apparatus is disposed within a vehicle or outside the vehicle, and when disposed outside the vehicle, is configured to transmit display information related to the display object to the vehicle or a mobile device.

Abstract: Disclosed are a cathode for an all-solid-state battery including a composite-coated or double-coated cathode active material and a method of manufacturing the same.

Abstract: The disclosed technology relates to a secondary battery, including: an electrode assembly in which a plurality of unit cells are stacked and an electrode terminal. In one example, respective electrode tabs of the unit cells, which extend from the electrode assembly, are gathered together and electrically connected to an electrode terminal of the secondary battery, and the electrode tab of each unit cell includes an excess length part corresponding to the swelling of the electrode assembly.

Abstract: Disclosed herein relates to a secondary battery, including a case and a venting device that opens when a pressure inside the case exceeds a first predetermined value, wherein the venting device includes a rupture disk having a bursting part formed therein that bursts at the pressure of the first predetermined value, and a heat-absorbing porous member on at least one of an upstream or downstream side of the rupture disk.

Abstract: A secondary battery having a positive and negative terminal spaced apart from each other on a top surface of a battery case having a hexahedral shape is provided. The secondary battery includes a terminal structure including a terminal body coupled to the top surface of the battery case and one or more faces extending from the top surface of the battery case while enclosing the positive or negative terminal so as not to be exposed, and an extension terminal electrically connected to the positive or negative terminal and exposed to any one surface of the terminal body except its top surface, and having a connection terminal facing a thickness direction of the secondary battery on the extension terminal.

Abstract: A display device is provided. The display device includes a first substrate, a first charge trap layer disposed on the first substrate and including silicon nitride, a semiconductor layer disposed on the first charge trap layer and including a first active layer of a first transistor and a second active layer of a second transistor, and an organic light emitting element electrically connected to the first transistor, wherein a ratio of a content of a Si element to a content of an N element in the first charge trap layer is in a range of 1.6 to 2.5.

Abstract: A compound of Chemical Formula 1 and an organic light-emitting device including the same: where X1 is O or S; R3 is a polycyclic heterocyclic group comprising at least one selected from N, O and S, or is a substituted or unsubstituted monocyclic heterocyclic group comprising at least one selected from O and S; Ar is a substituted or unsubstituted aryl group; and the other substituents are as described in the specification. When included in an organic light emitting device, the compound of Chemical Formula 1 can adjust the role of smoothly injecting holes into the light emitting layer, and can balance the movement of holes and electrons in the host, resulting in the device exhibiting lower driving voltage and improved efficiency and stability.

Abstract: A lithium secondary battery includes an electrode assembly comprising a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode. The lithium secondary battery includes an electrolyte composition comprising a non-aqueous organic solvent, a lithium salt, and an electrolyte additive. The positive electrode comprises a positive electrode active layer including a positive electrode active material and a polymer film stacked on a positive electrode current collector. The negative electrode comprises a negative electrode current collector, and a negative electrode active layer comprises a carbon material and a silicon material as a negative electrode active material on the negative electrode current collector. A ratio (DC/CC) of an initial discharge capacity (DC) and an initial charge capacity (CC) of the lithium secondary battery is 0.7 to 1.2.

Abstract: The embodiments relate to a polyamide-based film excellent in optical properties such as transmittance, haze, and yellow index and mechanical properties such as modulus and thickness uniformity, to a process for preparing the same, and to a cover window and a display device comprising the same. The polyamide-based film comprises a polyamide-based polymer and has an XRD pattern comprising a first peak whose highest point is located in a section where 2? is 14° to 16°.

Abstract: A robot arm is provided that includes: a first gripper having a first contact surface; a second gripper having a second contact surface corresponding to the first contact surface and an opening in the second contact surface; and a stopper including a pin protruding toward the first gripper. The stopper is configured to pass through the opening in the second gripper. As provided are a dummy removal system including the robot arm and a method of driving the dummy removal system to remove a polarization structure of a display panel.

Abstract: A polyimide composition, a method of preparing the polyimide composition, a polyimide film, and a flexible copper clad laminate are provided. The polyimide composition includes a dianhydride, and a diamine, and the diamine comprises an aromatic diamine, and an aliphatic diamine.

Abstract: Disclosed herein relates to a positive electrode for a lithium secondary battery and a lithium secondary battery including the same, and since the positive electrode contains a first positive electrode active material including an iron phosphate compound and a second positive electrode active material including a lithium composite metal oxide in a multi-layered positive electrode mixture layer, it is possible to display a large voltage deviation for each state of charge (SOC) of a secondary battery. Therefore, when applying a secondary battery, there is an advantage in that the state of charge (SOC) can be easily estimated and/or measured with high reliability.

Abstract: Disclosed herein relates to a lithium secondary battery, and the lithium secondary battery contains a ternary compound containing nickel (Ni), cobalt (Co), manganese (Mn), etc. as a positive electrode active material, and at the same time, contains a small amount of an iron phosphate compound and a silicon-based oxide in a positive electrode and a negative electrode, respectively, in the outermost part of a mixture layer adjacent to a separator, so not only has an excellent energy density of the battery, but also has a relatively low electrical conductivity of the positive electrode surface and the negative electrode surface, so that the amount of short circuit current during an internal short circuit of the secondary battery can be reduced, thereby having an advantage of improving the safety due to an internal short circuit of the secondary battery.

Abstract: An organic light emitting display device includes a first transistor including a first active region and a first gate electrode disposed on the first active region, a third transistor including a third lower gate electrode disposed on the first gate electrode, a third active region disposed on the third lower gate electrode, and a third upper gate electrode disposed on the third active region, and a fourth transistor including a fourth active region disposed in the same layer as the first active region and a fourth gate electrode disposed on the fourth active region. The first transistor is a first-type transistor, and the fourth transistor is a second-type transistor different from the first-type transistor.