Abstract: A display device can include a bank exposing a first open portion of a first sub-pixel and a first open portion of a second sub-pixel, a plurality of first lenses disposed to correspond to the first open portion of the first sub-pixel and the first open portion of the second sub-pixel, an optical layer disposed between the bank and the plurality of first lenses, the optical layer including a first groove between one of the plurality of first lenses corresponding to the first open portion of the first sub-pixel and another one of the plurality of first lenses corresponding to the first open portion of the second sub-pixel, the first groove having a first thickness, and a filler disposed in the first groove of the optical layer. Also, the filler is aligned with two of the plurality of first lenses in a first direction.

Abstract: The present technology relates to a battery cell jig for fastening bolts with uniform pressure when fixing a battery cell between first and second plates by applying the same rotating force to a plurality of bolt fastening units. The battery cell jig includes first and second plates arranged to face each other, n bolt fastening units, where the n is an integer equal to or greater than 2, a rotating member which is installed on one surface of the first plate or the second plate and is installed on an opposite side of a surface where the first and second plates face each other, and a driving unit which transmits rotating force of the rotating member to each of the n bolt fastening units.

Abstract: The present invention is advantageous in that the shape of the catheter can be sensed by detecting the position of bending of the catheter body, the direction thereof, the angle thereof, and the curvature thereof through a triplet calculation of information regarding three wavelengths that have undergone a transition along respective FBGs provided on three optical cores.

Abstract: According to the present invention, it is possible to provide a catheter capable of measuring the magnitude and direction of an external force applied to the front end of the catheter with a precise sensitivity by using information regarding the amount of change in the amount of light received by the optical fiber inside the catheter body.

Abstract: The present invention is advantageous in that the shape of the catheter can be sensed by detecting the position of bending of the catheter body, the direction thereof, the angle thereof, and the curvature thereof through a triplet calculation of information regarding three wavelengths that have undergone a transition along respective FBGs provided on three optical cores.