Abstract: Disclosed are a multi-screen display system and a method of correcting a time synchronization of image signals respectively played by unit display panels. The multi-screen display system includes a multi-screen display apparatus configured to include a plurality of unit display panels and a timing sensing apparatus configured to sense, outside the multi-screen display apparatus, time synchronization information about the unit image frames respectively played by the unit display panels. The timing sensing apparatus calculates a time synchronization error between the unit image frames respectively played by the unit display panels, based on the time synchronization information, and transmits the time synchronization error to the multi-screen display apparatus.

Abstract: A manufacturing method of a thin film transistor array panel includes: simultaneously forming a gate conductor and a first electrode on a substrate, using a non-peroxide-based etchant; forming a gate insulating layer on the gate conductor and the first electrode; forming a semiconductor, a source electrode, and a drain electrode on the gate insulating layer; forming a passivation layer on the semiconductor, the source electrode, and the drain electrode; and forming a second electrode layer on the passivation layer.

Abstract: A display apparatus includes a first substrate, a second substrate disposed on the first substrate, and a controllable layer disposed between the first and second substrates. The first substrate includes a pixel. The pixel includes a display region and a non-display region. The first substrate further includes: a transistor disposed in the non-display region; a protection layer disposed on and covering the transistor; a first electrode disposed on the protection layer; and a second electrode disposed on the first electrode, the second electrode being insulated from the first electrode and including a slit disposed in the display region. One of the first electrode and the second electrode is electrically connected to the transistor via a contact hole extending through the protection layer. The other of the first electrode and the second electrode is configured to receive a common voltage. The contact hole and the slit do not overlap one another.

Abstract: A switching power-supply device includes a main switching element connected between a power-supply and an output terminal; a driving circuit that drives the main switching element; a capacitor that feeds power to the driving circuit; a charging circuit that charges the capacitor when the main switching element is switched from an on-state to an off-state; a switching control circuit that performs switching control of alternately switching the main switching element to the on-state and the off-state via the driving circuit; a voltage detection circuit that detects a voltage between both ends of the capacitor, and a driving control circuit that switches a state of prohibiting driving of the main switching element and a state of permitting driving of the main switching element, based on a difference between an output voltage output from the output terminal and a preset reference voltage and the voltage between both ends of the capacitor.

Abstract: A DRM technique interoperability system includes an exporter and an importer. The exporter cancels the DRM technique from the contents to which the DRM technique of a DRM device is applied to generate a contents stream, generates a plurality of packets from the contents stream, and transmits the packets to the importer. The importer receives a plurality of packets from the exporter, generates a contents stream from the plurality of packets, applies a DRM technique of a second DRM device to the contents stream, and provides it to the second DRM device.

Abstract: A battery cooling system for a vehicle is provided that includes a battery case installed on a roof or a floor of the vehicle, having an internal space formed in a length direction, including a blower disposed at one side of the internal space; a plurality of battery packs continuously installed in the battery case; and inner ducts provided in the plurality of battery packs, respectively, formed to enclose the respective battery packs in the battery case, and having a first plurality of apertures disposed at one end of the inner ducts so as to be in communication with outside of the battery case and a second plurality of apertures disposed at an opposite end of the inner ducts so as to be in communication with the inside of the battery case, the respective second apertures each having different outlet resistances.

Abstract: A display device and a lighting device are provided. The display device includes a display element for outputting an image according to a provided image signal, a frame disposed on a rear surface of the display element, and a reflection layer formed on the frame and positioned between the display device and the frame, the reflection layer being a coating layer formed using a paint including at least one of silver and aluminum. When the backlighting device of the display device is configured, a reflection plate where deposition films and a reflection layer made of a metal component are deposited is not required and the reflection layer is formed on the frame by using a paint having at least one of silver and aluminum as its main components, thereby simplifying a manufacturing process, and contributing to reducing the thickness of the display device.

Abstract: A method of transmitting and receiving digital signage contents, which is capable of easily transmitting and receiving digital signage contents using a smartphone's application, is disclosed. According to an aspect, the method of transmitting and receiving digital signage contents includes: executing an application; transmitting a message for requesting digital signage contents displayed on a digital signage display device to a digital signage manager through the application; receiving the digital signage contents from the digital signage manager; and outputting the received digital signage contents. Accordingly, a user may easily and quickly receive digital signage contents using a smartphone's application, and also, a plurality of users may simultaneously use the same digital signage contents through their terminals. In addition, it is possible to objectively determine the degrees of users' concern and preference about advertisements and digital signage contents.

Abstract: A photosensitive resin composition includes an acryl-based copolymer formed by copolymerizing unsaturated carboxylic acid, unsaturated carboxylic acid anhydride, or a mixture thereof and an olefin-based unsaturated compound or a mixture of olefin-based unsaturated compounds, a photoinitiator represented by the following Chemical Formula 1 or 2, a multifunctional acrylate oligomer, a multifunctional monomer having an ethylenically unsaturated bond, and a melamine crosslinking agent.

Abstract: A switching power-supply device includes a main switching element connected between a power-supply and an output terminal; a driving circuit that drives the main switching element; a capacitor that feeds power to the driving circuit; a charging circuit that charges the capacitor when the main switching element is switched from an on-state to an off-state; a switching control circuit that performs switching control of alternately switching the main switching element to the on-state and the off-state via the driving circuit; a voltage detection circuit that detects a voltage between both ends of the capacitor, and a driving control circuit that switches a state of prohibiting driving of the main switching element and a state of permitting driving of the main switching element, based on a difference between an output voltage output from the output terminal and a preset reference voltage and the voltage between both ends of the capacitor.

Abstract: A thin film transistor (TFT) array panel and a manufacturing method thereof are disclosed. A contact hole may be formed to expose a pad disposed on a substrate of the TFT array panel. A first layer of a connecting member is formed with the same layer as a first field generating electrode and is disposed in the contact hole. A second passivation layer is disposed in the TFT array panel, but is removed at a region where the contact hole is formed and portions of the second passivation layer that cover the first layer of the connecting member. A second layer of the connecting member is formed on the first layer of the connecting member.

Abstract: A switching power-supply device includes a switching element; an output circuit; a feedback signal generation circuit; a control circuit that drives the switching element, based on the feedback signal, and controls the voltage of the power-supply output; a correction circuit that corrects a signal level of the feedback signal, wherein the control circuit comprises: an oscillation circuit that generates an on-trigger signal; a current detection circuit that generates a current detection signal; a difference detection circuit that generates a difference detection signal; a comparison circuit that generates an off-trigger signal, based on the current detection signal and the difference detection signal; and a first load detection circuit that controls an operation of the correction circuit, based on the current detection signal, and wherein the control circuit changes a setting voltage of the power-supply output, according to the signal level of the feedback signal.

Abstract: Instead of forming contact holes the same way in both the non-image forming peripheral area (PA) and the image forming display area of a thin film transistor array panel, contact holes in the DA are formed to be substantially smaller than those in the PA for thereby improving an aperture ratio of the corresponding display device. In an exemplary embodiment, an inorganic gate insulating layer is not etched in the DA and only an inorganic first passivation layer among inorganic insulating layers positioned in the DA is etched to allow communication between the drain electrode and the corresponding field generating electrode. On the other hand, in the peripheral area, plural inorganic insulating layers such as the gate insulating laver, the first passivation laver, and the second passivation layer positioned on the gate wire and the data wire are simultaneously etched to form second contact holes and third contact holes exposing respective gate pads and data pads.

Abstract: A thin film transistor array panel according to an exemplary embodiment of the present invention includes: an insulation substrate; a thin film transistor disposed on the insulation substrate, wherein the thin film transistor includes a first electrode; a first contact hole pattern having a first width, wherein the first contact hole pattern exposes a portion of the first electrode, and a first contact hole to expose the portion of the first electrode, wherein an inner sidewall of the first contact hole pattern constitutes a first portion of the first contact hole.

Abstract: A display panel includes: a substrate including red, green, blue and white sub-pixel areas; red, green and blue color filter layers respectively in the red, green and blue sub-pixel areas; and a dummy color filter layer in the white sub-pixel area. The dummy color filter layer is adjacent to at least one of the red color filter layer, the green color filter layer, and the blue color filter layer, and the dummy color filter layer forms a step with the adjacent color filter layer.

Abstract: A display substrate, a display device having the same and a method of manufacturing the display substrate are provided. The display substrate includes a base substrate having a pixels-populated area (PA) and a surrounding area (SA) outside the PA, a first contact pad portion formed in the surrounding area, a second contact pad portion formed in the surrounding area formed to be spaced apart from the first contact pad portion with a spacing region provided therebetween, an insulating layer formed in the spacing region between the first and second contact pad portions and having a thickness smaller than or equal to a thickness of each of the first and second contact pad portions, and a first conductive film formed on the first and second pad portions.

Abstract: A display substrate includes first, second, and third insulating layers in a display area thereof. The first and third insulating layers are in not only the display area but also a pad area adjacent to the display area and including a pad therein. Thus, defects of the display panel may be reduced.

Abstract: Methods for Joint Photographic Experts Group (JPEG) 2000 encoding and decoding based on a graphic processing unit (GPU) are provided. The method for JPEG2000 encoding based on a GPU includes receiving input image data from a central processing unit (CPU), encoding the image data, and transferring the encoded image data to the CPU.

Abstract: Provided are an apparatus and method for generating digital cinema content and an apparatus and method for playing digital cinema content. The method of playing digital cinema content using a digital cinema package (DCP) including frame data having a first resolution and length information about frame data having a second resolution lower than the first resolution, and a key delivery message (KDM) includes obtaining a material exchange format (MXF) file and a decryption key by parsing the DCP and the KDM, extracting an encrypted triplet from the MXF file, extracting the length information about the second-resolution frame data using the encrypted triplet and the decryption key, decrypting an amount of data required to decrypt the second-resolution frame data in the first-resolution frame data using the length information about the second-resolution frame data, and decoding the decrypted second-resolution frame data.

Abstract: A manufacturing method of a thin film transistor array panel includes: simultaneously forming a gate conductor and a first electrode on a substrate, using a non-peroxide-based etchant; forming a gate insulating layer on the gate conductor and the first electrode; forming a semiconductor, a source electrode, and a drain electrode on the gate insulating layer; forming a passivation layer on the semiconductor, the source electrode, and the drain electrode; and forming a second electrode layer on the passivation layer.