Abstract: A bulk-acoustic wave (BAW) resonator includes a central portion in which a first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on a substrate, and an extension portion extending externally from the central portion, and an insertion layer and a loss prevention film are disposed in the extension portion between the substrate and the second electrode. The loss prevention film is formed to have a thickness of 50 ? to 500 ?. The insertion layer is stacked on the loss prevention film, and has a side surface opposing the central portion, the side surface is formed as a first inclined surface having a first inclination angle. The loss prevention film has a side surface opposing the central portion, the side surface is formed as a second inclined surface having a second inclination angle. The second inclination angle is formed to be greater than the first inclination angle.

Abstract: A display device includes a display panel including a plurality of pixels, a first panel pad, and a second panel pad and a circuit board including a first substrate pad and a second substrate pad to apply a first power voltage to the first panel pad and the second panel. The display panel further includes a first power line pattern connected to the second substrate pad to apply the first power voltage to the pixels and a second power line pattern connected to the first substrate pad. The circuit board includes a first electrostatic discharge protection circuit connected between the first substrate pad and the second substrate pad, a substrate power pattern electrically connected to the first substrate pad, a ground pattern receiving a ground voltage, and a second electrostatic discharge protection circuit connected between the substrate power pattern and the ground pattern.

Abstract: A display panel includes a display area, a pad area, and a bending area between the display area and the pad area, a lower metal layer in the display area, a semiconductor element in the display area, on the lower metal layer, and a heat dissipation layer in the pad area. The lower metal layer and the heat dissipation layer are respective patterns of a same material layer and including a same material as each other.

Abstract: A display device includes a display panel including a plurality of pixels, a first panel pad, and a second panel pad and a circuit board including a first substrate pad and a second substrate pad to apply a first power voltage to the first panel pad and the second panel. The display panel further includes a first power line pattern connected to the second substrate pad to apply the first power voltage to the pixels and a second power line pattern connected to the first substrate pad. The circuit board includes a first electrostatic discharge protection circuit connected between the first substrate pad and the second substrate pad, a substrate power pattern electrically connected to the first substrate pad, a ground pattern receiving a ground voltage, and a second electrostatic discharge protection circuit connected between the substrate power pattern and the ground pattern.

Abstract: A display device includes a display panel including a plurality of pixels, a first panel pad, and a second panel pad and a circuit board including a first substrate pad and a second substrate pad to apply a first power voltage to the first panel pad and the second panel. The display panel further includes a first power line pattern connected to the second substrate pad to apply the first power voltage to the pixels and a second power line pattern connected to the first substrate pad. The circuit board includes a first electrostatic discharge protection circuit connected between the first substrate pad and the second substrate pad, a substrate power pattern electrically connected to the first substrate pad, a ground pattern receiving a ground voltage, and a second electrostatic discharge protection circuit connected between the substrate power pattern and the ground pattern.

Abstract: A display device includes a display panel including a plurality of pixels, a first panel pad, and a second panel pad and a circuit board including a first substrate pad and a second substrate pad to apply a first power voltage to the first panel pad and the second panel. The display panel further includes a first power line pattern connected to the second substrate pad to apply the first power voltage to the pixels and a second power line pattern connected to the first substrate pad. The circuit board includes a first electrostatic discharge protection circuit connected between the first substrate pad and the second substrate pad, a substrate power pattern electrically connected to the first substrate pad, a ground pattern receiving a ground voltage, and a second electrostatic discharge protection circuit connected between the substrate power pattern and the ground pattern.

Abstract: A display device includes a display module including a display panel, a circuit board electrically connected to the display panel, and a driving device mounted on the circuit board and configured to apply an electrical signal to the display panel, and a case including a metal body portion, and a metal protrusion portion protruding from the metal body portion and coupled to the display module, wherein the circuit board includes a ground layer, an insulating layer, and a ground pattern electrically connected to the ground layer and facing the metal protrusion portion.

Abstract: A display device includes a display module including a display panel, a circuit board electrically connected to the display panel, and a driving device mounted on the circuit board and configured to apply an electrical signal to the display panel, and a case including a metal body portion, and a metal protrusion portion protruding from the metal body portion and coupled to the display module, wherein the circuit board includes a ground layer, an insulating layer, and a ground pattern electrically connected to the ground layer and facing the metal protrusion portion.

Abstract: A circuit board, including a plurality of wiring lines extending along a first direction and arranged side by side along a second direction perpendicular to the first direction; a plurality of pads having a predetermined length along the first direction, the plurality of pads being on the wiring lines; ground pad outside the pads, the wiring lines including first wiring lines delivering a positive polarity signal and second wiring lines delivering a negative polarity signal, the pads including first pads on the first wiring lines and second pads on the second wiring lines, and a cross-sectional area of each wiring line being substantially equal to that of each pad.

Abstract: A display device includes a display module including a display panel, a circuit board electrically connected to the display panel, and a driving device mounted on the circuit board and configured to apply an electrical signal to the display panel, and a case including a metal body portion, and a metal protrusion portion protruding from the metal body portion and coupled to the display module, wherein the circuit board includes a ground layer, an insulating layer, and a ground pattern electrically connected to the ground layer and facing the metal protrusion portion.

Abstract: A circuit board, including a plurality of wiring lines extending along a first direction and arranged side by side along a second direction perpendicular to the first direction; a plurality of pads having a predetermined length along the first direction, the plurality of pads being on the wiring lines; ground pad outside the pads, the wiring lines including first wiring lines delivering a positive polarity signal and second wiring lines delivering a negative polarity signal, the pads including first pads on the first wiring lines and second pads on the second wiring lines, and a cross-sectional area of each wiring line being substantially equal to that of each pad.

Abstract: A display is disclosed. The display includes electrodes in an edge region of the panels to which AC voltages are applied to reduce the effects of ionic particles.

Abstract: A driving method for an image display device including sub-pixels arranged in rows and columns, the driving method including: receiving first data corresponding to one frame; dividing the one frame into fields; generating second data from the first data for each of the fields; and supplying the second data to the sub-pixels. Where, the second data is generated by selectively inserting black data in portions of the first data.

Abstract: A method for generating a gamma voltage comprising, a first low voltage and a first high voltage having a first voltage range between the first low voltage and the first high voltage are divided into a plurality of gamma voltages of a first polarity during a first interval. A second low voltage and a second high voltage having a second voltage range between the second low voltage and the second high voltage are divided into a plurality of gamma voltages of a second polarity during a second interval.

Abstract: There is provided a method of driving a gate line, a gate drive circuit for performing the method, and a display apparatus having the gate drive circuit. In the method, a plurality of gate signals, generated from a plurality of shift registers connected to a plurality of gate lines, is applied to the gate lines. An output of the gate signals is blocked during a vertical blanking interval, and then a gate off voltage is applied to the gate lines. Therefore, an output signal of the gate drive circuit may maintain a gate off voltage during a vertical blanking interval in which a clock signal is not applied to a gate drive circuit.

Abstract: A driving method for an image display device including sub-pixels arranged in rows and columns, the driving method including: receiving first data corresponding to one frame; dividing the one frame into fields; generating second data from the first data for each of the fields; and supplying the second data to the sub-pixels. Where, the second data is generated by selectively inserting black data in portions of the first data.

Abstract: An apparatus for driving source lines includes an output buffer, a first switch and a second switch. The output buffer outputs a first voltage and a second voltage having an opposite phase to the first voltage during an output interval including a first interval portion and a second interval portion. The first switch applies the first and second voltages to an m-th source line and an (m+1)-th source line respectively during the first interval portion and blocks the first and second voltages during the second interval portion. The second switch includes a plurality of switching elements, the second switch short-circuiting the m-th source line and the (m+1)-th source line during the second interval portion, wherein the m-th source line has at least two connecting portions to be electrically connected to the (m+1)-th source line.

Abstract: In a display apparatus and a method of driving the display apparatus, data voltages, which correspond to image data, are supplied to data lines to drive a plurality of pixels arranged in pixel areas defined by a plurality of gate lines and data lines, and gate signals are sequentially supplied to gate lines. The gate signals are maintained at a level of gate on voltage such that the data voltages of the data lines are supplied to corresponding pixels during a scan period, and alternately have a first voltage level and a second voltage level in synchronization with a common voltage during a non-scan period.

Abstract: A display is disclosed. The display includes electrodes in an edge region of the panels to which AC voltages are applied to reduce the effects of ionic particles.

Abstract: There is provided a method of driving a gate line, a gate drive circuit for performing the method, and a display apparatus having the gate drive circuit. In the method, a plurality of gate signals, generated from a plurality of shift registers connected to a plurality of gate lines, is applied to the gate lines. An output of the gate signals is blocked during a vertical blanking interval, and then a gate off voltage is applied to the gate lines. Therefore, an output signal of the gate drive circuit may maintain a gate off voltage during a vertical blanking interval in which a clock signal is not applied to a gate drive circuit.