Abstract: A cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same, and the compound used as a material of an organic material layer in the organic light emitting device and providing improved efficiency, low driving voltage and improved lifetime characteristics of the organic light emitting device.

Abstract: A camera module includes a housing, a movable body configured to move in a direction of an optical axis of the housing; a reinforcing member formed integrally on one surface of the movable body, and configured to increase a rigidity of the movable body; and a first buffer member formed in the reinforcing member, and configured to reduce an impactive force between the housing and the movable body.

Abstract: A camera module includes a carrier supported on a housing and movable in an optical axis direction, at least one frame supported on the carrier and movable, relative to the carrier, in at least one direction perpendicular to the optical axis direction, and a lens module supported on the frame. The frame is supported on the carrier such that attractive force acts in the at least one direction perpendicular to the optical axis direction.

Abstract: A backlight unit 10 for an outside mirror of a vehicle may comprise: a light source unit 30 including at least one light source 31 disposed therein; a light processing unit 40 having at least one light passage 41 through which light emitted from the light source 31 passes while being diffused, and a reflective surface 42 for reflecting the light having passed through the light passage 41; and a photorefractive means 60 which is disposed at a light exit of the light processing unit and refracts light emitted from the light exit of the light processing unit to be oriented toward a driver's seat.

Abstract: A control device of an ECM employs a current control method in place of a voltage control method in order to remove heat generation, and can stably provide a desired current and voltage to an ECM regardless of an input voltage. The control device of an ECM may include: an illuminance sensor unit configured to sense the brightness of light; an MCU configured to output a control signal corresponding to the brightness level of the sensed light; an ECM control unit configured to generate and output a constant current having a current value adjusted to correspond to the brightness level of the sensed light, in response to the control signal; and an ECM including a material to cause a chemical change in which the color thereof changes while the material is oxidized by the constant current, and having reflectivity adjusted to correspond to the adjusted current value of the constant current.

Abstract: A backlight unit 10 for an outside mirror of a vehicle may comprise: a light source unit 30 including at least one light source 31 disposed therein; a light processing unit 40 having at least one light passage 41 through which light emitted from the light source 31 passes while being diffused, and a reflective surface 42 for reflecting the light having passed through the light passage 41; and a photorefractive means 60 which is disposed at a light exit of the light processing unit and refracts light emitted from the light exit of the light processing unit to be oriented toward a driver's seat.