Abstract: A thick film electrode for a lithium secondary battery is provided. The lithium secondary battery includes a thick film electrode including a cathode including a cathode active material and an anode including an anode active material. The cathode and the anode have a thickness in a range of 250 ?m to 1500 ?m, and are laser-etched such that one or more grooves are formed in the cathode and the anode.

Abstract: A bent rotor straightening method using low-frequency induction heating and a bent rotor straightening apparatus using the method are proposed. The bent rotor straightening method using low-frequency induction heating according to an embodiment of the present invention includes: calculating a heating speed when a first target temperature for correcting bending of a rotor using low-frequency induction heating is set; maintaining the first target temperature for a heating time determined on the basis of a diameter of the rotor when the first target temperature is reached, when performing primary thermal correction at the heating speed; checking whether a bending amount of the rotor reaches a predetermined critical value in accordance the result of performing the primary thermal correction; and finishing correction of bending of the rotor in accordance with the result of checking the bending amount of the rotor.

Abstract: A bent rotor straightening method using low-frequency induction heating and a bent rotor straightening apparatus using the method are proposed. The bent rotor straightening method using low-frequency induction heating according to an embodiment of the present invention includes: calculating a heating speed when a first target temperature for correcting bending of a rotor using low-frequency induction heating is set; maintaining the first target temperature for a heating time determined on the basis of a diameter of the rotor when the first target temperature is reached, when performing primary thermal correction at the heating speed; checking whether a bending amount of the rotor reaches a predetermined critical value in accordance the result of performing the primary thermal correction; and finishing correction of bending of the rotor in accordance with the result of checking the bending amount of the rotor.

Abstract: A thick film electrode for a lithium secondary battery is provided. The lithium secondary battery includes a thick film electrode including a cathode including a cathode active material and an anode including an anode active material. The cathode and the anode have a thickness in a range of 250 ?m to 1500 ?m, and are laser-etched such that one or more grooves are formed in the cathode and the anode.

Abstract: A display apparatus and a backlight driving method applied to the display apparatus are provided. The display apparatus controls to drive light sources of a backlight unit according to an image scanning scheme of a display panel and controls the luminance of each light source to equalize the luminance of the backlight emitting from the backlight unit with respect to a location of the light source.

Abstract: A display apparatus and a backlight driving method applied to the display apparatus are provided. The display apparatus controls to drive light sources of a backlight unit according to an image scanning scheme of a display panel and controls the luminance of each light source to equalize the luminance of the backlight emitting from the backlight unit with respect to a location of the light source.