Abstract: An inverter includes a first N type oxide transistor operated in a depletion mode; and a second N type oxide transistor operated in a normal mode or enhancement mode, wherein an overlap area between an etch stop layer and a drain electrode of the first N type oxide transistor is greater than an overlap area between the etch stop layer and a source electrode of the first N type oxide transistor.

Abstract: There are provided a substrate including an oxide TFT having improved initial threshold voltage degradation characteristics included in a driving circuit of a liquid crystal display (LCD) device, a method for fabricating the same, and a driving circuit for an LCD device using the same. The substrate including an oxide thin film transistor (TFT) includes: a base substrate divided into a pixel region and a driving circuit region; and a plurality of TFTs formed on the base substrate, wherein an initial threshold voltage of at least one of the plurality of TFTs formed in the driving circuit region is positive-shifted to have a predetermined level.

Abstract: A method of applying an OFF-state offset to a display device includes: supplying a ground voltage from a data driving circuit; to a source electrode of a thin film transistor supplying a gate voltage from a gate driving circuit to a gate electrode of the thin film transistor, the gate voltage turning off the thin film transistor; and supplying an AC voltage to a drain electrode of the thin film transistor.

Abstract: The LCD device allows the three demultiplex signal lines to connect the center portion of the data driver with the center portion of the demultiplexer.

Abstract: A liquid crystal display and a pre-charging method thereof for pre-charging data lines using a ESD circuit to simplify a circuit configuration are provided. In the method, video lines receiving video signals are floated in a pre-charge interval of time. A pre-charge voltage is supplied to the video lines floated via a static electricity proof circuit connected to the video lines. The pre-charge voltage on the video line is pre-charged by a demultiplexer for making a time-divisional driving of the data lines in a video charge interval of time.

Abstract: A liquid crystal display device includes a pixel matrix where a plurality of gate lines and a plurality of data lines cross each other and a plurality of liquid crystal cells are arranged, first data switching thin film transistors respectively connected to data lines of a first group of the data lines, and second data switching thin film transistors respectively connected to data lines of a second group of the data lines.

Abstract: Disclosed are a liquid crystal display panel and apparatus, which can prevent electrolytic corrosion or other corrosion of on-off pads in a test pad part. The liquid crystal display panel comprises: a pixel part having a plurality of pixels arranged in a matrix at intersections of a plurality of gate lines and a plurality of data lines; a gate pad part having a plurality of gate pads, each of the gate pads connected with the corresponding gate lines to deliver a gate signal; a data pad part having a plurality of data pads, each of the data pads connected with the corresponding data lines to deliver a data signal; a test pad part having at least one or more on-off pads delivering a test signal to the gate lines or the data lines; and a switching device for cutting off the gate signal and/or the data signal so as not to be provided to the on-off pads upon driving the liquid crystal display panel.

Abstract: A liquid crystal display device includes a display unit having matrix type pixels defined by gate and data lines crossing with each other, a data driver to supply a data voltage to be supplied to the data lines via output lines, the output lines being less in number than the data lines, a plurality of demultiplexers, each including a plurality of switching devices having a gate terminal, source terminal and a drain terminal, wherein the gate terminals are supplied with a plurality of control signals, the source terminals are commonly connected to the corresponding output line, and the drain terminals are individually connected to one side of the data lines, respectively, a data line check unit activated to supply a test data voltage to the other side of the data lines when the data driver is inactive, a plurality of signal input lines individually connected to the gate terminals, respectively, an input terminal supplied with a cutoff signal to be inputted to the signal input lines to turn off the switching de

Abstract: A common voltage driving circuit of a liquid crystal display, includes: a clock signal input unit that comprises a plurality of transistors and inputs first and second clock signals according to a gate output voltage; an output node voltage controller that comprises a plurality of transistors and condensers and changes voltages of positive and negative polarity output nodes by the first and second clock signals and first to third gate output voltages; an initialization voltage supply unit that comprises a plurality of transistors and supplies an initialization voltage of the output node voltage controller; and a common voltage output unit that comprises a plurality of transistors and a single condenser and prevents the voltages of the positive and negative polarity output nodes from being changed by using the condenser in alternately outputting higher and lower common voltages according to the voltages of the positive and negative polarity output nodes.

Abstract: An LCD is fabricated using a diffraction mask with transmissive, semi-transmissive, and opaque regions. The semi-transmissive region permits formation of a transmission, reflection, or pixel electrode, depending on the type of LCD being fabricated, using the same masking process as that to produce contact holes in an insulating film and a conductive layer. Photoresist exposed through the semi-transmissive region is partially removed during developing that completely removes photoresist in the transmissive or opaque region. The contact holes are formed in the region in which the photoresist is completely removed, the photoresist and underlying conductive layer in the semi-transmissive region are then removed, and the remaining photoresist is stripped.

Abstract: A liquid crystal display device includes a pixel matrix where a plurality of gate lines and a plurality of data lines cross each other and a plurality of liquid crystal cells are arranged, first data switching thin film transistors respectively connected to data lines of a first group of the data lines, and second data switching thin film transistors respectively connected to data lines of a second group of the data lines.

Abstract: An LCD device adapted to reduce the number of output channels is disclosed. The LCD device forces the demultiplexer to sequentially connect plural data lines of a liquid crystal panel to one signal line of a data driver. Accordingly, the channel number of the data driver can be greatly reduced. The LCD device allows the three demultiplex signal lines to connect the center portion of the data driver with the center portion of the demultiplexer. Accordingly, the demultiplex signal paths can be minimized. As a result, the deterioration of the signals can be prevented.

Abstract: Disclosed are a liquid crystal display panel and apparatus, which can prevent electrolytic corrosion or other corrosion of on-off pads in a test pad part. The liquid crystal display panel comprises: a pixel part having a plurality of pixels arranged in a matrix at intersections of a plurality of gate lines and a plurality of data lines; a gate pad part having a plurality of gate pads, each of the gate pads connected with the corresponding gate lines to deliver a gate signal; a data pad part having a plurality of data pads, each of the data pads connected with the corresponding data lines to deliver a data signal; a test pad part having at least one or more on-off pads delivering a test signal to the gate lines or the data lines; and a switching device for cutting off the gate signal and/or the data signal so as not to be provided to the on-off pads upon driving the liquid crystal display panel.

Abstract: A flat panel display device (FPD) and fabricating method thereof are disclosed, which reduce the number of masks during fabrication and prevent electro-chemical corrosion problems. In the FPD, a cell area and a pad area are defined on a substrate. A storage electrode traverses an active layer in parallel to a gate line. Source and drain regions of the active layer in the vicinity of both sides of a gate electrode are not formed below the storage electrode. An insulating interlayer over the substrate has first and second contact holes on the source and drain regions, respectively. A source electrode contacts the source region via a first contact hole and a drain electrode contacts the drain region via a second contact hole to directly contact a pixel electrode. A protective layer is disposed over the substrate including the pixel electrode.

Abstract: A liquid crystal display device includes a pixel matrix where a plurality of gate lines and a plurality of data lines cross each other and a plurality of liquid crystal cells are arranged, first data switching thin film transistors respectively connected to data lines of a first group of the data lines, and second data switching thin film transistors respectively connected to data lines of a second group of the data lines.

Abstract: Disclosed are a liquid crystal display panel and apparatus, which can prevent electrolytic corrosion or other corrosion of on-off pads in a test pad part. The liquid crystal display panel comprises: a pixel part having a plurality of pixels arranged in a matrix at intersections of a plurality of gate lines and a plurality of data lines; a gate pad part having a plurality of gate pads, each of the gate pads connected with the corresponding gate lines to deliver a gate signal; a data pad part having a plurality of data pads, each of the data pads connected with the corresponding data lines to deliver a data signal; a test pad part having at least one or more on-off pads delivering a test signal to the gate lines or the data lines; and a switching device for cutting off the gate signal and/or the data signal so as not to be provided to the on-off pads upon driving the liquid crystal display panel.

Abstract: A liquid crystal display panel and a fabricating method thereof for minimizing a resistance of a silver dot caused by thickness of a silver dot and preventing distortion of a common voltage are disclosed. In the liquid crystal display panel, a common pad may be formed on a first substrate. A common electrode supplies a common voltage through a common pad to a second substrate opposite to the first substrate. A conductive dot is substantially formed between the common electrode and the common pad to electrically connect the common electrode and common pad. An organic protective film minimizes conductive dot height on the first substrate at an area substantially corresponding to the common pad.

Abstract: Provided is an array substrate of an LCD that includes a substrate, an active layer, a first insulating layer, and a gate electrode sequentially formed on the substrate. A source region and a drain region reside in predetermined regions of the active layer and each is doped with impurity ions. A second insulating layer overlies an entire surface of the substrate including the gate electrode. A pixel electrode resides on the second insulating layer. First and second contact holes reside in the first and second insulating layer and expose portions of the source region and the drain region, respectively. A portion of a source electrode contacts the source region through the first contact hole and a first portion of a drain electrode contacts the drain region and a second portion contacts the pixel electrode.

Abstract: An LCD substrate including multiple LCD panels may be cut along a scribing boundary. All or part of one or more test pads or test signal lines may extend in whole or in part across the scribing boundary. When the LCD substrate is cut along the scribing boundary, the test pads or test signal lines are cut or removed.

Abstract: A method of applying an OFF-state offset to a display device includes: supplying a ground voltage from a data driving circuit; to a source electrode of a thin film transistor supplying a gate voltage from a gate driving circuit to a gate electrode of the thin film transistor, the gate voltage turning off the thin film transistor; and supplying an AC voltage to a drain electrode of the thin film transistor.