Abstract: The present invention relates to a method of manufacturing a photonic integrated device based on single-step active layer epitaxial growth, and the method includes forming, on a substrate, a reference region having a first bandgap and a region having a bandgap, which is red-shifted relative to the first bandgap, through active layer epitaxial growth, and applying a blue-shift to the substrate to form a region having a second bandgap that is blue-shifted relative to the first bandgap.

Abstract: A display panel includes a plurality of pixels. Each of the pixels includes a first transistor having a gate electrode connected to a first node and a first electrode to which a high level driving voltage is applied, a light emitting device having an anode electrode connected to a second electrode of the first transistor and a cathode electrode to which a low level driving voltage is applied, a second transistor applying a fixing voltage to the first node based on a first gate signal, a third transistor applying a data voltage to a second node based on the first gate signal, a fourth transistor connecting the second node to an input terminal for the low level driving voltage based on a second gate signal having a phase opposite to a phase of the first gate signal, and a capacitor between the first node and the second node.

Abstract: An apparatus for substrate dicing includes: a laser beam emitter outputting a laser beam; a stage on which a test substrate is loaded, wherein the test substrate includes a sample substrate and a test film; a laser beam modulator modulating the laser beam to output a modulated beam; an optical system transferring the modulated beam into the sample substrate; a camera capturing the modulated beam that is reflected from the test film; and a controller generating a control signal based on at least one of a reaction point being formed in the test film or a shape of the reaction point of the test film being biased toward one side with respect to a central axis, wherein the laser beam modulator is configured to modulate the laser beam based on the control signal to output the modulated beam.

Abstract: An over-the-ear type headset having a hanger capable of being selectively bent and positioned to afford easy and comfortable wearing regardless of a size and a shape of the ear, and an end-cap having a bulging portion adapted to rest on a recess region below a user's ear to assure stable support of the headset is disclosed. The headset includes a headset body containing an earphone and a microphone, and a hanger coupled to the headset body, which is adapted to be bent along a back of a user's ear.