Abstract: In a method for recovering lithium hydroxide from a lithium secondary battery, cathode powder is prepared from a cathode of the lithium secondary battery. A cathode active material mixture is prepared by mixing the cathode powder with a calcium compound. The cathode active material mixture is reduced to form a preliminary precursor mixture. A lithium precursor is recovered from the preliminary precursor mixture. Therefore, a lithium precursor can be obtained with high purity without a complicated leaching process or an additional process, which result from a wet-based acid solution process.

Abstract: Disclosed herein is a flat panel display (FPD) manufacturing apparatus for performing a desired process for a substrate positioned in a chamber after establishing a vacuum atmosphere in the chamber. The vacuum chamber is divided into a chamber body and an upper cover to ensure easy opening/closing operations of the upper cover.

Abstract: Disclosed herein is a flat panel display (FPD) manufacturing apparatus for performing a desired process for a substrate positioned in a chamber after establishing a vacuum atmosphere in the chamber. The vacuum chamber is divided into a chamber body and an upper cover to ensure easy opening/closing operations of the upper cover.

Abstract: A substrate supporting apparatus includes first and second shafts spaced by a distance that corresponds to or exceeds a width of a substrate, and at least one wire to support the substrate. The wire has ends coupled to respective ones of the first and second shafts. The wire is raised and lowered to place a substrate onto a lower electrode in a substrate processing chamber and to remove the substrate when processing is completed.

Abstract: Disclosed herein is a flat panel display (FPD) manufacturing apparatus for performing a desired process for a substrate positioned in a chamber after establishing a vacuum atmosphere in the chamber. The vacuum chamber is divided into a chamber body and an upper cover to ensure easy opening/closing operations of the upper cover.

Abstract: Disclosed herein is a flat panel display (FPD) manufacturing apparatus for performing a desired process for a substrate positioned in a chamber after establishing a vacuum atmosphere in the chamber. The vacuum chamber is divided into a chamber body and an upper cover to ensure easy opening/closing operations of the upper cover.

Abstract: Disclosed herein is a flat panel display (FPD) manufacturing apparatus for performing a desired process for a substrate positioned in a chamber after establishing a vacuum atmosphere in the chamber. The vacuum chamber is divided into a chamber body and an upper cover to ensure easy opening/closing operations of the upper cover.

Abstract: Disclosed herein is a flat panel display (FPD) manufacturing apparatus for performing a desired process for a substrate positioned in a chamber after establishing a vacuum atmosphere in the chamber. The vacuum chamber is divided into a chamber body and an upper cover to ensure easy opening/closing operations of the upper cover.

Abstract: A substrate supporting apparatus includes first and second shafts spaced by a distance that corresponds to or exceeds a width of a substrate, and at least one wire to support the substrate. The wire has ends coupled to respective ones of the first and second shafts. The wire is raised and lowered to place a substrate onto a lower electrode in a substrate processing chamber and to remove the substrate when processing is completed.

Abstract: Disclosed herein is a flat panel display (FPD) manufacturing apparatus for performing a desired process for a substrate positioned in a chamber after establishing a vacuum atmosphere in the chamber. The vacuum chamber is divided into a chamber body and an upper cover to ensure easy opening/closing operations of the upper cover.

Abstract: A flat luminescence lamp includes a first substrate having a first surface and a second surface, a second substrate having a first surface disposed facing opposite to the first surface of the first substrate, a first luminescence layer formed on the first surface of the first substrate, a second luminescence layer formed on the first surface of the second substrate, and a plurality of grooves formed on the second surface of the first substrate.

Abstract: A flat luminescence lamp includes a first substrate having a first surface and a second surface, a second substrate having a first surface disposed facing opposite to the first surface of the first substrate, a first luminescence layer formed on the first surface of the first substrate, a second luminescence layer formed on the first surface of the second substrate, and a plurality of grooves formed on the second surface of the first substrate.

Abstract: A flat luminescence lamp includes a first substrate having a first surface and a second surface, a second substrate having a first surface disposed facing opposite to the first surface of the first substrate, a first luminescence layer formed on the first surface of the first substrate, a second luminescence layer formed on the first surface of the second substrate, and a plurality of grooves formed on the second surface of the first substrate.

Abstract: A flat luminescence lamp includes a first substrate having a first surface and a second surface, a second substrate having a first surface disposed facing opposite to the first surface of the first substrate, a first luminescence layer formed on the first surface of the first substrate, a second luminescence layer formed on the first surface of the second substrate, and a plurality of grooves formed on the second surface of the first substrate.