Abstract: A back light unit is disclosed, of which thinness is easily provided. The back light unit comprises at least one light source substrate having one surface provided with at least one light source and the other surface provided with a connector to which a driving power source for driving the light source is input; a bottom cover receiving the light source substrate therein, wherein the bottom cover includes at least one opening, so that the connector is projected to the outside of the bottom cover, the opening passing through a rear surface of the bottom cover.

Abstract: An expansion module for a PLC, used in such a manner that at least one expansion module is sequentially connected to a basic unit in order to exchange massive data at high speed by using USB communication, is provided. Each of the expansion module includes a USB hub and a USB device, and is allocated with an exchange number from a USB host of the basic unit by activating the USB device according to input of a trigger signal. In addition, whether the USB hub is to be used is determined by deciding whether the expansion through the USB hub is required according to the allocated exchange number. Thus, a user needs only to arrange each of the expansion modules by a designation.

Abstract: Provided is a PLC data log module and method for storing data in the same, wherein, in a case one or more storages among a plurality of outside storages is attached, a log data is stored in the attached outside storage, the log data is stored in the storage and check is made as to whether the log data is normally stored in the attached outside storage.

Abstract: An operation method and apparatus in a first end device of a service provider network is provided. The method includes generating a measurement frame including information supporting simultaneous measurement of a plurality of Service Level Agreement (SLA) metrics, sending the generated measurement frame to a second end device connected through the service provider network, receiving a reply frame corresponding to the generated measurement frame from the second end device, and analyzing the received reply frame and hierarchically acquiring the plurality of SLA metrics for the second end device.

Abstract: Proposed is an apparatus for RS-232C and RS-485 serial communication using common communication port configured to selectively use a communication by RS-232C and RS-485 communication methods without change in external wirings by performing the RS-232C and RS-485 communications using a common communication port, the apparatus including a communication converter configured to transmit a data using mutually different communication methods through a common port in response to a provided communication method selection signal, or receiving a data from outside, and a controller configured to provide the communication method selection signal and the transmission data to the communication converter in response to a set parameter, and to receive the data transmitted from outside through the communication converter.

Abstract: A curved liquid crystal display device includes a liquid crystal display panel, a backlight unit, a bottom cover and a reinforcement frame. The liquid crystal display panel includes a thin film transistor substrate and a color filter substrate. The backlight unit applies light to the liquid crystal display panel. The bottom cover supports the backlight unit and has a flat shape. The reinforcement frame has a predetermined curvature and is attached to the bottom cover. The flat bottom cover is mounted on the reinforcement frame such that the flat bottom cover has the predetermined curvature of the reinforcement frame.

Abstract: A curved liquid crystal display device includes a liquid crystal display panel, a backlight unit, a bottom cover and a reinforcement frame. The liquid crystal display panel includes a thin film transistor substrate and a color filter substrate. The backlight unit applies light to the liquid crystal display panel. The bottom cover supports the backlight unit and has a flat shape. The reinforcement frame has a predetermined curvature and is attached to the bottom cover. The flat bottom cover is mounted on the reinforcement frame such that the flat bottom cover has the predetermined curvature of the reinforcement frame.

Abstract: A touch display device and a light sensor module recovery method thereof are discussed. The touch display device includes i light sensor modules, where i is a natural number greater than 1, for sensing a touch applied to a touch display panel, and a malfunction recovery unit for determining whether each of the i light sensor modules malfunctions and restarting at least one of the i light sensor modules when the at least one light sensor module is determined to malfunction.

Abstract: Provided is a PLC data log module and method for storing data in the same, wherein, in a case one or more storages among a plurality of outside storages is attached, a log data is stored in the attached outside storage, the log data is stored in the storage and check is made as to whether the log data is normally stored in the attached outside storage.

Abstract: Disclosed are an optical touch input device which divisionally adjusts optical output of a light emitting unit before and during a touch operation to reduce power consumption, and a driving method thereof, the optical touch input device includes a display panel, a plurality of infrared light emitting elements disposed on two adjacent sides of the display panel, a lens unit disposed on the remaining two adjacent sides of the display panel and reflecting light emitted from the infrared light emitting elements, a light receiving unit disposed on the two adjacent sides of the display panel, and a touch control unit including a touch coordinate calculation unit to calculate a set of coordinates of a touch point and a light emission control unit to divide optical outputs of the infrared light emitting elements into optical output during touch and optical output during non-touch and to lower the optical output during non-touch.

Abstract: A back light unit is disclosed, of which thinness is easily provided. The back light unit comprises at least one light source substrate having one surface provided with at least one light source and the other surface provided with a connector to which a driving power source for driving the light source is input; a bottom cover receiving the light source substrate therein, wherein the bottom cover includes at least one opening, so that the connector is projected to the outside of the bottom cover, the opening passing through a rear surface of the bottom cover.

Abstract: Provided are a backlight unit and a display device having the same. The display device according to an embodiment includes a display panel and a backlight unit for supplying light to the display panel. The backlight unit according to an embodiment includes a light guide plate, a light source disposed at a side of the light guide plate, a sensor sensing brightness or color temperature of natural light, an adaptive controller generating a voltage level signal to compensate for the brightness or color temperature of natural light, and a light source driver supplying a voltage corresponding to the voltage level signal to the light source. Thus, although the brightness or the color temperature of the natural light varies, uniform brightness or color temperature can be achieved by adjusting the brightness or the color temperature of the artificial light generated from the light source, thus displaying high-definition and high-quality images.

Abstract: Provided are a backlight unit and a display device having the same. The display device according to an embodiment includes a display panel and a backlight unit for supplying light to the display panel. The backlight unit according to an embodiment includes a light guide plate, a light source disposed at a side of the light guide plate, a sensor sensing brightness or color temperature of natural light, an adaptive controller generating a voltage level signal to compensate for the brightness or color temperature of natural light, and a light source driver supplying a voltage corresponding to the voltage level signal to the light source. Thus, although the brightness or the color temperature of the natural light varies, uniform brightness or color temperature can be achieved by adjusting the brightness or the color temperature of the artificial light generated from the light source, thus displaying high-definition and high-quality images.