Abstract: A display device including voltage lines to transfer a power voltage is disclosed. One inventive aspect includes a display panel, a data driver formed on the display panel, a printed circuit board supplying a voltage to the data driver, and voltage lines connecting the data driver to the printed circuit board. The voltage lines further includes a first voltage line transferring a first power voltage, a second voltage line transferring the first power voltage or a second power voltage, a third voltage line transferring the second power voltage or a third power voltage, and a fourth voltage line transferring the third power voltage.

Abstract: A display panel includes a plurality of data lines, a plurality of gate lines, a plurality of dummy loads, a pad portion and a fanout portion. The data lines are disposed in a display area, on which a plurality of pixels are disposed. The gate lines are disposed in the display area and cross the data lines. The dummy loads are disposed in a peripheral area surrounding the display area. The pad portion is disposed in the peripheral area and includes signal pads and dummy pads. The fanout portion includes a first fanout line portion connecting the data lines to the signal pads, and a second fanout line portion connecting the dummy loads to the dummy pads.

Abstract: A display device including voltage lines to transfer a power voltage is disclosed. One inventive aspect includes a display panel, a data driver formed on the display panel, a printed circuit board supplying a voltage to the data driver, and voltage lines connecting the data driver to the printed circuit board. The voltage lines further includes a first voltage line transferring a first power voltage, a second voltage line transferring the first power voltage or a second power voltage, a third voltage line transferring the second power voltage or a third power voltage, and a fourth voltage line transferring the third power voltage.

Abstract: A display device includes a driving device, which includes a signal controller which receives an input image signal and an input control signal and outputs an image data and a data control signal; a reference voltage generator which generates a first reference voltage and a second reference voltage; and a data driver which receives the image data and the data control signal from the signal controller and outputs a data voltage. The data control signal includes a first color gamma control signal, a second color gamma control signal, and a third color gamma control signal. The data driver includes a reference gamma voltage generator which receives the first reference voltage and the second reference voltage from the reference voltage generator, receives the first color, second color, and third color gamma control signals from the signal controller, and generates a reference gamma voltage according to color information of the image data.

Abstract: A liquid crystal display having data driving apparatus comprising first and second output switches, a charge sharing line, and first and second charge sharing switches. The first output switch switches an electrical connection between a first amplifier providing a positive gradation voltage and a first data line in response to a control signal. The second output switch switches an electrical connection between a second amplifier providing a negative gradation voltage and a second data line in response to the control signal. The first charge sharing switch switches an electrical connection between the first data line and the charge sharing line in response to the control signal. The second charge sharing switch switches an electrical connection between the second data line and the charge sharing line in response to the control signal.

Abstract: A signal generating circuit for a liquid crystal display (LCD) includes circuitry adapted to receive a gate clock signal and an output enable signal. The gate clock signal is a combination of a gate-on signal and a gate-off signal and the output enable signal is operable to adjust the width of the gate-on signal. The signal generating circuit adjusts the output enable signal such that a falling edge of the output enable signal overlaps a rising edge of the gate clock signal and thereby delays the gate clock signal for a selected amount of time.

Abstract: A display device includes a driving device, which includes a signal controller which receives an input image signal and an input control signal and outputs an image data and a data control signal; a reference voltage generator which generates a first reference voltage and a second reference voltage; and a data driver which receives the image data and the data control signal from the signal controller and outputs a data voltage. The data control signal includes a first color gamma control signal, a second color gamma control signal, and a third color gamma control signal. The data driver includes a reference gamma voltage generator which receives the first reference voltage and the second reference voltage from the reference voltage generator, receives the first color, second color, and third color gamma control signals from the signal controller, and generates a reference gamma voltage according to color information of the image data.

Abstract: A data processing method for a display apparatus includes comparing data signals outputted to a first data line and a second data line of a plurality of data lines of a data driving circuit in the display apparatus to generate an output buffer control signal, and outputting output signals from at least one amplifier of a plurality of amplifiers of an output buffer in the data driving circuit to the first data line and the second data line, where the at least one amplifier is selected based on the output buffer control signal.

Abstract: A display panel includes a plurality of data lines, a plurality of gate lines, a plurality of dummy loads, a pad portion and a fanout portion. The data lines are disposed in a display area, on which a plurality of pixels are disposed. The gate lines are disposed in the display area and cross the data lines. The dummy loads are disposed in a peripheral area surrounding the display area. The pad portion is disposed in the peripheral area and includes signal pads and dummy pads. The fanout portion includes a first fanout line portion connecting the data lines to the signal pads, and a second fanout line portion connecting the dummy loads to the dummy pads.

Abstract: A flexible circuit board includes a base substrate, a driving chip, an input transmission line, an output transmission line and a connecting transmission line. The driving chip is on a surface of the base substrate. The input transmission line is on the surface of the base substrate and electrically connected to an input terminal of the driving chip. The output transmission line is on the surface of the base substrate and electrically connected to an output terminal of the driving chip. The input transmission line is electrically connected to the output transmission line through the connecting transmission line.

Abstract: A display device includes more than one IC chip formed on a substrate. Analog signals are applied to the ICs with a point-to-point structure. Digital signals are applied to the ICs with a cascade structure. Wirings applying digital signals are widened in the areas having room available so that electrical resistance can be reduced. Wirings in areas not having enough room to widen are applied with multi path technology to reduce electrical resistance. Multi contact technology may be applied to contact the ICs to a glass substrate.

Abstract: A flexible circuit film whose signal lines are resistant to cracking even upon bending is presented. The flexible circuit film includes a base substrate, a signal transmission line and a crack-preventing portion. The signal transmission line is formed on a first surface of the base substrate. The crack-preventing portion is formed on a portion of a second surface of the base substrate that is opposite to the first surface to prevent cracking of the signal transmission line. The crack-preventing portion is formed on the part of the flexible circuit film that is bent by a large angle when the flexible circuit film is assembled with another component.

Abstract: A liquid crystal display having data driving apparatus comprising first and second output switches, a charge sharing line, and first and second charge sharing switches. The first output switch switches an electrical connection between a first amplifier providing a positive gradation voltage and a first data line in response to a control signal. The second output switch switches an electrical connection between a second amplifier providing a negative gradation voltage and a second data line in response to the control signal. The first charge sharing switch switches an electrical connection between the first data line and the charge sharing line in response to the control signal. The second charge sharing switch switches an electrical connection between the second data line and the charge sharing line in response to the control signal.

Abstract: A display device and a method for driving the same wherein the timing of the gate clock signal, which is an output of a timing controller, is changed to a time before a data latch signal is applied, so that degradation of the image due to gate noise can be prevented. That is, a gate turn-on voltage is applied before the data latch signal to turn on thin film transistors in an interval in which a gate turn-off voltage is stabilized. Accordingly, the generation of horizontal streaks in the lower portion of the display device is prevented.

Abstract: A signal generating circuit for a liquid crystal display (LCD) includes circuitry adapted to receive a gate clock signal and an output enable signal. The gate clock signal is a combination of a gate-on signal and a gate-off signal and the output enable signal is operable to adjust the width of the gate-on signal. The signal generating circuit adjusts the output enable signal such that a falling edge of the output enable signal overlaps a rising edge of the gate clock signal and thereby delays the gate clock signal for a selected amount of time.

Abstract: A liquid crystal display device includes a liquid crystal panel including a pad electrode, a tape circuit substrate and an anisotropic conductive film. The pad electrode receives one of a driving signal and a power supply voltage signal. The tape circuit substrate includes a base film made of an insulating material, and a signal line formed on the base film and having a slit at a portion of the signal line which overlaps the pad electrode of the liquid crystal panel. The anisotropic conductive film connects the outer lead with the pad electrode.

Abstract: A flexible circuit board includes a base substrate, a driving chip, an input transmission line, an output transmission line and a connecting transmission line. The driving chip is on a surface of the base substrate. The input transmission line is on the surface of the base substrate and electrically connected to an input terminal of the driving chip. The output transmission line is on the surface of the base substrate and electrically connected to an output terminal of the driving chip. The input transmission line is electrically connected to the output transmission line through the connecting transmission line.

Abstract: A flexible circuit film whose signal lines are resistant to cracking even upon bending is presented. The flexible circuit film includes a base substrate, a signal transmission line and a crack-preventing portion. The signal transmission line is formed on a first surface of the base substrate. The crack-preventing portion is formed on a portion of a second surface of the base substrate that is opposite to the first surface to prevent cracking of the signal transmission line. The crack-preventing portion is formed on the part of the flexible circuit film that is bent by a large angle when the flexible circuit film is assembled with another component.

Abstract: A liquid crystal display device includes a liquid crystal panel including a pad electrode, a tape circuit substrate and an anisotropic conductive film. The pad electrode receives one of a driving signal and a power supply voltage signal. The tape circuit substrate includes a base film made of an insulating material, and a signal line formed on the base film and having a slit at a portion of the signal line which overlaps the pad electrode of the liquid crystal panel. The anisotropic conductive film connects the outer lead with the pad electrode.

Abstract: A signal transmission film includes a conductive pattern having a resin-extruding path making contact with an anisotropic conductive film including a resin so that the resin is extruded through the resin-extruding path for providing a stable connection. Alternatively, the resin-extruding path is provided in a signal providing pattern on a display panel. Also, a flexible printed circuit includes a gate driving terminal having at least two sub terminals electrically connected to each other. Each of the sub terminals is electrically connected to a gate driving control signal pad of a liquid crystal display panel for enhancing contact stability.