Abstract: There is provided a spindle motor including: a sleeve fixedly installed on the base member and having a circulation hole formed therein; a shaft rotatably inserted into a shaft hole of the sleeve; a rotor hub fixedly installed on an upper end portion of the shaft; and a thrust member installed in an installation groove of the sleeve and forming a connection part while being installed in the installation groove, the connection part being connected to the circulation hole, wherein the connection part is formed by the sleeve and the rotor hub and connects a sealing part in which a liquid-vapor interface is disposed and the circulation hole to each other, and an upper and lower radial dynamic grooves allowing a lubricating fluid to move from a lower end portion of the shaft toward the upper end portion thereof during rotation of the shaft.

Abstract: Provided are an IC chip and a method of verifying data thereof. The present invention verifies integrity of data by comparing an integrity verifying value generated from data using an integrity verifying value generating algorithm before a write operation for storing data in a storing unit is performed and an integrity verifying value generated from data stored in the storing unit using the integrity verifying value generating algorithm after the write operation is completed. According to the present invention, the present invention can confirm whether data stored in the IC chip is normally stored when manufacturing/issuing the IC chip and whether data stored in the IC chip is normally stored during the IC chip is used.

Abstract: A blue fluorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: wherein at least two of the R1, the R2, the R3, and the R4 are selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group, and the R5 is selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group.

Abstract: A method for fabricating the OLED including a color conversion layer using roll-to-roll processing is provided. To elaborate, the method for fabricating an OLED comprising: bonding an OLED and an inorganic phosphor to each other through roll-to-roll processing is provided, wherein the inorganic phosphor is provided as a color conversion layer.

Abstract: Disclosed is a non-halogen flame retardant styrene resin composition which comprises (a) a styrene resin and (b) a phosphorous-modified epoxy resin and thus exhibits superior flame retardancy to external candle flame ignition.

Abstract: A plant cultivation apparatus including: a guide rail disposed above a cultivation bed and extending along the length direction of the cultivation bed; a movable unit configured to move along the guide rail; an arm unit having a first end that is coupled to the movable unit, and a second end that is telescopically extendable from the movable unit toward the cultivation bed; and a UV radiation unit coupled to the second end of the arm unit and configured to irradiate the cultivation bed with a set amount of UV light.

Abstract: This invention relates to a backlight unit that is adaptive for increasing brightness uniformity, and a liquid crystal module using the same. The backlight unit includes a plurality of light emitting diodes with the (2i?1)th (where i is a natural number) light emitting diodes of the plurality connected in a first series circuit between an input terminal and an output terminal and the 2ith light emitting diodes of the plurality connected in a second series circuit. The second series circuit is connected in parallel with the first series circuit between the input terminal and the output terminal, and each of the 2ith light emitting diodes is disposed adjacent to a respective (2i?1)th light emitting diode.

Abstract: A white organic light emitting device includes: first and second electrodes formed to face each other on a substrate; a first stack configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked between the first and second electrodes; a second stack configured with a second hole transportation layer, a second light emission layer, a third light emission layer, a second electron transportation layer and an electron injection layer which are stacked between the first stack and the second electrode; and a charge generation layer interposed between the first and second stacks and configured to adjust a charge balance between the two stacks.

Abstract: An organic electro-luminescence display device and a method for fabricating the same are provided. A first substrate and a second substrate are sealed by a sealant. An organic electro-luminescent diode is formed on the first substrate. The sealant contains a frit glass and a light-heat converter. The frit glass can reduce the moisture and oxygen transmission rate by preventing the organic electro-luminescent diode from being thermally decomposed during a curing process. Since the two substrates are encapsulated by the frit glass, the lifetime and reliability of the organic electro-luminescence display device can be increased.

Abstract: A motor may include: a rotor case having a coupling hook extending downward in an axial direction, secured to a shaft, and performing rotation; a sleeve supporting the shaft; and a sleeve housing having a projection provided at a front end portion of an upper part thereof in the axial direction and a guide passage provided along the projection such that the coupling hook moves along the guide passage while the sleeve is pressed and inserted into an inner circumferential surface thereof.

Abstract: There is provided a motor including a sleeve rotatably supporting a shaft; a sleeve holder having the sleeve inserted thereinto and including fixing parts; and a base member including fixing counterparts corresponding to the fixing parts of the sleeve holder and fixedly coupled to the sleeve holder, wherein the sleeve holder and the base member have guide parts and guide counterparts respectively provided therein, the guide parts and guide counterparts having corresponding shapes and guiding the sleeve holder to a mounting position thereof.

Abstract: There is provided a spindle motor including: a sleeve rotatably supporting a shaft; a sleeve holder supporting the sleeve and formed through a pressing process; a stator core fixedly mounted on an outer circumferential surface of the sleeve holder; and a pulling magnet fixedly mounted on an upper surface of the stator core, wherein the stator core includes a burr insertion stepped part formed in a lower portion of an inner diameter portion thereof.

Abstract: The present invention relates to a configuration method of a multifunctional particulate filter (MFPF), capable of reducing the content of particulate material (PM), carbon monoxide (CO) and hydrocarbons (HC), and increasing the content of nitrogen dioxide (NO2), The MFPF may coat zeolite and an oxidation catalyst on both exhaust gas intake/discharge sides simultaneously, so as to minimize the slippage of HC and generate high-concentration NO2.

Abstract: Disclosed herein is a slip prevention member for a turntable. A friction layer prevents a slip of a disk placed on an upper surface thereof. A hardness reinforcing layer is provided under the lower surface of the friction layer. An adhesive layer is provided under the lower surface of the hardness reinforcing layer. A releasable sheet is attached to the lower surface of the adhesive layer. The slip prevention member reduces use of environmentally toxic material and uses the hardness reinforcing layer, thus preventing occurrence of vibrations and noise which may be induced when the hardness of the slip prevention member is relatively low.

Abstract: A method for manufacturing light emitting devices is provided. The method may reduce the inner pressure of a laminated image emitting device panel, thereby preventing failure of the panel. The method includes holding a first substrate with a lower chuck located in a vacuum chamber; holding a second substrate with an upper chuck located opposite the first chuck in the vacuum chamber; creating a high vacuum in the vacuum chamber; correcting positions of the first substrate and the second substrate; supplying gas having a temperature of about 50 to about 200° C. into the vacuum chamber; temporarily laminating the first substrate and the second substrate; venting the vacuum chamber; and bonding the first substrate and the second substrate. The panel is laminated after being filled with a heated gas and thus, when it is exposed to room temperature, the mobility of the gas decreases while reducing its initial inner pressure, thereby preventing panel failure.

Abstract: An apparatus for measuring a high speed signal may comprise a plurality of Analog-Digital converters (AD converter) that are arranged in parallel to each other to sample an input signal at different frequencies; a plurality of frequency synthesizers configured to provide each AD converter with a different sampling frequency; a signal processor configured to receive an output of the plurality of AD converters to reconstruct the input signal; and/or a controller configured to receive and process a trigger signal.

Abstract: Disclosed herein is a brushless DC motor that ensures stable driving of a shaft that rotates in a hollow of a bearing by using a bearing with a flat bottom surface and a tapered top. A contact height between an inner peripheral surface of the bearing and an outer peripheral surface of the shaft is larger than a contact height between an outer peripheral surface of the bearing and an inner peripheral surface of a bearing holder.

Abstract: An apparatus and a method for providing a Digital Multimedia Broadcasting (DMB) service using a digital TeleVision (TV) and an external device are provided. It is determined whether a received broadcast channel supports a Multi Mode Service (MMS), and if so, one of subchannels included in the broadcast channel is set to a main channel. The digital TV reproduces a broadcast signal via the main channel, and broadcast signals of subchannels excluding the main channel are transmitted to at least one external device in communication with the digital TV.

Abstract: A sensorless control apparatus may include: a speed command unit configured to output a speed command to an electric motor; a current detector unit configured to detect electric current flowing through the electric motor if a voltage being output according to the speed command is supplied to the electric motor; a rotor angle calculation unit configured to calculate a magnetic flux of a rotor of the electric motor based on the detected electric current and the voltage being output according to the speed command, and to calculate an angle of the rotor from the calculated magnetic flux; and/or an out-of-step sensing unit configured to sense an out-of-step of the rotor according to a comparison of the calculated angle of the rotor with an angle of the rotor estimated based on a sensorless control algorithm.

Abstract: A spindle motor includes a rotor including a rotary shaft and magnets, a stator including a bearing, which supports the rotary shaft, and an armature corresponding to the magnets. The rotor is caused to rotate by an electromagnetic force generated by the magnets and the armature. The stator includes a plate having a stepped portion in a portion thereof, which faces the rotary shaft.