Abstract:
The present invention relates to a power supply device generating an output power by using an AC line voltage generated through rectification of an AC input, and a driving method thereof. The power supply device controls the switching operation of the power switch by using a sensing voltage corresponding to the drain current flowing to the power switch and the feedback voltage corresponding to the output voltage. The power supply device controls the feedback current every switching cycle to generate a threshold voltage, and compares the sensing voltage and the threshold voltage to control the turn-off of the power switch. The feedback current includes the first current to generate the feedback voltage, and the threshold voltage follows a curved line waveform in which the increasing slope is decreased during the switching cycle.
Abstract:
An organic light emitting diode lighting apparatus is disclosed. The apparatus includes: a light emitting panel including an organic light emitting diode, a receiver receiving the light emitting panel, a cover coupled with the receiver to cover a front edge of the light emitting panel, at least one permanent magnet disposed on the receiver or the cover, and at least one of electromagnet disposed on the receiver or the cover member.
Abstract:
A power supply includes an input filter and a discharging device. The input filter includes a capacitor to which an AC power source is provided. The discharging device rectifies and samples the AC power source. The discharging device generates a reference voltage according to a peak voltage of a generated sampling signal, generates an AC power source cutoff detection signal according to a comparison signal generated by comparing the sampling signal and a reference voltage, and discharges the capacitor through a discharging register according to the AC power source cutoff detection signal.
Abstract:
The present invention discloses a mounting structure of a linear compressor, comprising: a shell which is a hermetic space, a connection terminal for supplying power being fixed to one side of the shell; a main body frame installed in the shell, one end of a cylinder forming a compression space for compressing a refrigerant with a piston being fixed to the main body frame; and a motor cover, a linear motor comprised of an inner stator, an outer stator and a mover, for reciprocating the piston by a mutual electromagnetic force being fixed to the outer circumference of the cylinder, the outer stator being bolt-fastened between the main body frame and the motor cover. Here, the main body frame is left-right symmetric.
Abstract:
A method of displaying an image for a self-luminescence display includes determining loads by channels of an input image frame, estimating a display brightness of the input image frame using a relationship between the loads predetermined by channels and a change of the display brightness, correcting a luminance value of the image frame to correspond to the estimated brightness, and displaying the luminance-corrected image frame.
Abstract:
A linear compressor is provided. The linear compressor may include a cylinder in which refrigerant flows in an axial direction, a piston that reciprocates within the cylinder so as to compress the refrigerant, and a linear motor that drives the piston. At least one of the cylinder or the piston may be sintering molded.
Abstract:
A semiconductor package and method of fabricating has a substrate having conductive patterns formed thereon. A semiconductor die is attached to the substrate. An electrically connecting member is electrically coupled to the semiconductor die and the conductive patterns. A plurality of lands is coupled to the substrate. At least one land is pivotally mounted to the substrate. A first section of the pivotally mounted land is in contact with the substrate. A second section of the pivotally mounted land is floating to form a void area between the substrate and the second section. An encapsulant is used for encapsulating a top surface of the substrate, the semiconductor die, and the electrically connecting member. A solder ball is electrically coupled to each land.
Abstract:
An organic light emitting diode lighting apparatus includes: a substrate main body including a sealing area and a sealing line surrounding the sealing area; a plurality of first line electrodes of which both ends are located within the sealing area; a plurality of second line electrodes, at least one end of which is located outside the sealing area; an encapsulating member disposed to face the substrate main body; a sealant disposed on the sealing line to bond the substrate main body and the encapsulating member and seal the sealing area; a first connection member coupled to the ends of the plurality of first line electrodes within the sealing area; and a second connection member coupled to the ends of the plurality of second line electrodes outside the sealing area.
Abstract:
The present invention discloses a mounting structure of a linear compressor, comprising: a shell which is a hermetic space, a connection terminal for supplying power being fixed to one side of the shell; a main body frame installed in the shell, one end of a cylinder forming a compression space for compressing a refrigerant with a piston being fixed to the main body frame; and a motor cover, a linear motor comprised of an inner stator, an outer stator and a mover, for reciprocating the piston by a mutual electromagnetic force being fixed to the outer circumference of the cylinder, the outer stator being bolt-fastened between the main body frame and the motor cover. Here, the main body frame is left-right symmetric.
Abstract:
Disclosed are an apparatus and a method for display of a screen according to brightness intensity of ambient light. One or more characteristic values configuring display data is set to be higher than a preset color characteristic value when measured brightness intensity of ambient light is higher than preset brightness intensity of ambient light, and one of the set color characteristic values is converted to a contrast characteristic value and is displayed. Therefore, even when brightness intensity of ambient light is high, the user can accurately view a screen.