Abstract: A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIGfield.

Abstract: The present invention relates to a method and system for providing language learning services. The method of providing language learning services, according to the present invention, the method may include: activating, in response to receiving an input for acquiring a learning target image through a user terminal, a camera of the user terminal; specifying at least a portion of an image taken by the camera as the learning target image; receiving language learning information for the learning target image from a server; providing the language learning information to the user terminal; and storing, based on a request for storing of the language learning information, the language learning information in association with the learning target image, such that the learning target image is used in conjunction with learning of the language learning information.

Abstract: An emissive display device includes a polycrystalline semiconductor including a channel, source region, and drain region of a driving transistor disposed on a substrate. The device includes a gate electrode of the driving transistor overlapping the channel of the driving transistor, an oxide semiconductor including a channel, a source region, and a drain region of a second transistor disposed on the substrate, and a first connection electrode. The first connection electrode includes a first connector electrically connected to the gate electrode of the driving transistor, a second connector electrically connected to a second electrode of the second transistor, and a main body disposed between the first connector and the second connector. The device includes an initialization voltage line disposed on the substrate and applying an initialization voltage. The initialization voltage line surrounds at least a part of the second connector of the first connection electrode.

Abstract: An emissive display device includes a polycrystalline semiconductor including a channel, source region, and drain region of a driving transistor disposed on a substrate. The device includes a gate electrode of the driving transistor overlapping the channel of the driving transistor, an oxide semiconductor including a channel, a source region, and a drain region of a second transistor disposed on the substrate, and a first connection electrode. The first connection electrode includes a first connector electrically connected to the gate electrode of the driving transistor, a second connector electrically connected to a second electrode of the second transistor, and a main body disposed between the first connector and the second connector. The device includes an initialization voltage line disposed on the substrate and applying an initialization voltage. The initialization voltage line surrounds at least a part of the second connector of the first connection electrode.

Abstract: A display device includes: a substrate including a display area and a non-display area; a light blocking layer disposed on the substrate; and a semiconductor layer disposed on the light blocking layer, wherein the light blocking layer includes a plurality of flat plate portions disposed in the display area, a first connector connected to the flat plate portions in a first direction, a second connector connected to the flat plate portions in a second direction perpendicular to the first direction, and an outer portion disposed in the non-display area, and the first connector and the outer portion are directly connected to each other, and a width of the outer portion is greater than a width of the first connector.

Abstract: A display panel comprises a first data line, a second data line electrically insulated from the first data line, and a first data connection line electrically connected to the first data line and disposed closer to the second data line than to the first data line in a first direction. The first data line, the second data line, and the first data connection line each comprise a line member extending in a second direction different from the first direction and comprise a first protrusion and a second protrusion both protruding from the line member and being wider than the line member in the first direction.

Abstract: A display device includes a substrate including a first display area, a second display area, and a non-display area, a plurality of first signal lines extending in a first direction and disposed in the first display area, a plurality of second signal lines extending from the non-display area in the first direction and disposed in the second display area, a plurality of connection lines connected to the first signal lines and extending to the non-display area via the first display area and the second display area, and a test circuit portion disposed in the non-display area. At least some of the plurality of connection lines and at least some of the second signal lines are electrically the test circuit portion.

Abstract: A phosphoric acid-free etchant composition and a method of forming a wiring, the composition including about 40 wt % to about 60 wt % of an organic acid compound; about 6 wt % to about 12 wt % of a glycol compound; about 1 wt % to about 10 wt % of nitric acid, sulfuric acid, or hydrochloric acid; about 1 wt % to about 10 wt % of a nitrate salt compound; and water, all wt % being based on a total weight of the phosphoric acid-free etchant composition.

Abstract: An emissive display device includes a polycrystalline semiconductor including a channel, source region, and drain region of a driving transistor disposed on a substrate. The device includes a gate electrode of the driving transistor overlapping the channel of the driving transistor, an oxide semiconductor including a channel, a source region, and a drain region of a second transistor disposed on the substrate, and a first connection electrode. The first connection electrode includes a first connector electrically connected to the gate electrode of the driving transistor, a second connector electrically connected to a second electrode of the second transistor, and a main body disposed between the first connector and the second connector. The device includes an initialization voltage line disposed on the substrate and applying an initialization voltage. The initialization voltage line surrounds at least a part of the second connector of the first connection electrode.

Abstract: An OLED display device includes a substrate including a display region and a pad region, a display structure in the display region on the substrate, and a pad electrode structure in the pad region on the substrate, the pad electrode structure having a first pad electrode on the substrate, a first insulation layer covering opposite lateral portions of the first pad electrode and exposing a portion of an upper surface of the first pad electrode, a second pad electrode on the first pad electrode and on the first insulation layer, the second pad electrode having a step portion where the first pad electrode and the first insulation layer are overlapped, and a third pad electrode on the second pad electrode and on the first insulation layer, the third electrode covering the second pad electrode.

Abstract: Provided are a method and related mobile device for editing, in an integrated, convenient and quick manner, various menu pages selectively used for a home screen. In response to a given input signal, the mobile device outputs a page edit screen including a specific page displayed on the home screen. Then, in response to subsequent input signals, the mobile device may add a new page, delete a selected page, change a title of a selected page, move or remove a selected icon in a page, change a background image of a selected page, or change a positional order of pages.

Abstract: A flexible electrode for a display device may include a conductive structure including a lower conductive pattern disposed on a substrate and an upper conductive pattern disposed on the lower conductive pattern, and an electrode layer disposed on the substrate, the electrode layer being adjacent to the conductive structure. A width of a top surface of the lower conductive pattern may be less than a width of a bottom surface of the upper conductive pattern.

Abstract: A phosphoric acid-free etchant composition and a method of forming a wiring, the composition including about 40 wt % to about 60 wt % of an organic acid compound; about 6 wt % to about 12 wt % of a glycol compound; about 1 wt % to about 10 wt % of nitric acid, sulfuric acid, or hydrochloric acid; about 1 wt % to about 10 wt % of a nitrate salt compound; and water, all wt % being based on a total weight of the phosphoric acid-free etchant composition.

Abstract: An OLED display device includes a substrate including a display region and a pad region, a display structure in the display region on the substrate, and a pad electrode structure in the pad region on the substrate, the pad electrode structure having a first pad electrode on the substrate, a first insulation layer covering opposite lateral portions of the first pad electrode and exposing a portion of an upper surface of the first pad electrode, a second pad electrode on the first pad electrode and on the first insulation layer, the second pad electrode having a step portion where the first pad electrode and the first insulation layer are overlapped, and a third pad electrode on the second pad electrode and on the first insulation layer, the third electrode covering the second pad electrode.

Abstract: An OLED display device includes a substrate including a display region and a pad region, a display structure in the display region on the substrate, and a pad electrode structure in the pad region on the substrate, the pad electrode structure having a first pad electrode on the substrate, a first insulation layer covering opposite lateral portions of the first pad electrode and exposing a portion of an upper surface of the first pad electrode, a second pad electrode on the first pad electrode and on the first insulation layer, the second pad electrode having a step portion where the first pad electrode and the first insulation layer are overlapped, and a third pad electrode on the second pad electrode and on the first insulation layer, the third electrode covering the second pad electrode.

Abstract: A phosphoric acid-free etchant composition and a method of forming a wiring, the composition including about 40 wt % to about 60 wt % of an organic acid compound; about 6 wt % to about 12 wt % of a glycol compound; about 1 wt % to about 10 wt % of nitric acid, sulfuric acid, or hydrochloric acid; about 1 wt % to about 10 wt % of a nitrate salt compound; and water, all wt % being based on a total weight of the phosphoric acid-free etchant composition.

Abstract: Provided are a method and related mobile device for editing, in an integrated, convenient and quick manner, various menu pages selectively used for a home screen. In response to a given input signal, the mobile device outputs a page edit screen including a specific page displayed on the home screen. Then, in response to subsequent input signals, the mobile device may add a new page, delete a selected page, change a title of a selected page, move or remove a selected icon in a page, change a background image of a selected page, or change a positional order of pages.

Abstract: A method and an electronic device for providing content are provided. The electronic device includes a voice input module configured to receive a voice input, an audio output module, a display, a memory configured to store a voice recognition application which provides content in response to the voice input, and a processor configured to execute the voice recognition application and determine an output scheme of the content to be outputted through the audio output module or the display based on a status of the voice recognition application or an operating environment of the electronic device.

Abstract: A method and related mobile device for editing, in an integrated, convenient and quick manner, various pages selectively used for a screen. In response to a given input signal, the mobile device outputs a page edit screen including a specific page displayed on the screen. Then, in response to subsequent input signals, the mobile device may add a new page, delete a selected page, change a title of a selected page, move or remove a selected icon in a page, change a background image of a selected page, or change a positional order of pages.

Abstract: A flexible electrode for a display device may include a conductive structure including a lower conductive pattern disposed on a substrate and an upper conductive pattern disposed on the lower conductive pattern, and an electrode layer disposed on the substrate, the electrode layer being adjacent to the conductive structure. A width of a top surface of the lower conductive pattern may be less than a width of a bottom surface of the upper conductive pattern.