Abstract: A display device includes first and second semiconductor layers on a substrate, the first and second semiconductor layers including a polycrystalline semiconductor material and an oxide semiconductor material, respectively. The device includes a first gate insulating layer on the first and second semiconductor layers. The device includes first and second gate electrodes on the first gate insulating layer, the first and second gate electrodes corresponding to the first and second semiconductor layers, respectively. The device includes a first interlayer insulating layer on the first gate electrode and the second gate electrode. The device includes first source and drain electrodes and second source and drain electrodes on the first interlayer insulating layer, the first source and drain electrodes connected to both end portions, respectively, of the first semiconductor layer, the second source and drain electrodes connected to both end portions, respectively, of the second semiconductor layer.

Abstract: Disclosure includes a bank structure comprising a first region to neighbor a first light emitting part and to have a first height, a second region to neighbor a second light emitting part and to have the first height, a plurality of slits parallel to each other between the first region and the second region, an isolated protrusion pattern between the plurality of slits and to have a second height greater than the first height, a third region connected to the first region and to have the second height and a fourth region connected to the second region and to have the second height.

Abstract: Disclosed is an apparatus for controlling the connection of a plurality of battery packs including a switching unit provided on a charge/discharge path of each battery pack to selectively open and close the charge/discharge path, a first control unit provided for each battery pack to determine the state of charge (SOC) of each battery pack and control the opening/closing of the switching unit, and a second control unit to receive the determined SOC of each battery pack from the first control unit, group battery packs having a predetermined range of SOCs, select a group containing a largest number of battery packs, connect the battery packs of the selected group in parallel, charge or discharge the parallel-connected battery packs so that a difference in SOC between the parallel-connected battery packs and the non-connected battery pack falls within a predetermined range, and connect the non-connected battery pack thereto in parallel.

Abstract: Disclosed is an apparatus for controlling the connection of a plurality of battery packs including a switching unit provided on a charge/discharge path of each battery pack to selectively open and close the charge/discharge path, a first control unit provided for each battery pack to determine the state of charge (SOC) of each battery pack and control the opening/closing of the switching unit, and a second control unit to receive the determined SOC of each battery pack from the first control unit, group battery packs having a predetermined range of SOCs, select a group containing a largest number of battery packs, connect the battery packs of the selected group in parallel, charge or discharge the parallel-connected battery packs so that a difference in SOC between the parallel-connected battery packs and the non-connected battery pack falls within a predetermined range, and connect the non-connected battery pack thereto in parallel.

Abstract: A method of making and fuel electrode-supported solid oxide fuel cell (SOFC). For manufacturing the SOFC, YSZ powder containing 30 to 50 vol % of Ni is mixed with carbon powder to give a fuel electrolyte slurry which is pre-sintered, coated on a fuel electrode tube, and then the coated tube is sintered. An air electrode slurry made of (La, Sr)MnO3 powder is coated on the electrolyte-coated tube and sintered. The fuel electrode of the metal (Ni/ceramic (YSZ) cermet of the SOFC is a support and the electrolyte layer underlaying the air electrode is coated as a thin film. At about 1,000° C., the Ni components of the fuel electrode are connected to each other like a mesh, improving the fuel electrode strength while the porous fuel electrode allows the sufficient permeation of fuel gas, thereby providing a large economical profit in the production cost without degradation of fuel cell performance.