Abstract: Provided are a method and apparatus for driving a Light Emitting Diode (LED) dot matrix. The apparatus includes a plurality of R, G and B LEDs, a clock multiplier generating R, G and B Pulse Width Modulation (PWM) clocks using an input system clock, and a column driver generating R, G and B PWM signals using input R, G and B data and the generated R, G and B PWM clocks and applying the R, G and B PWM signals to the R, G and B LEDs in order to drive the LED dot matrix.

Abstract: Provided is a flyback DC/DC converter for a power supply. In the flyback DC/DC converter, a flyback driver unit provides a primary current. A transformer includes a plurality of secondary coils for inducing energy from the primary coil receiving the primary current. A rectifier unit includes a plurality of rectifier diodes for rectifying secondary currents of the corresponding secondary coils of the transformer. A plurality of clamp diodes are connected in series to the corresponding rectifier diodes of the rectifier unit in a forward direction to clamp ringing voltage across the corresponding rectifier diodes when the power switch is turned off. Accordingly, the voltage across the rectifier diode on the secondary side can be reduced such that it is lower than the output voltage. Also, it is possible to remove the ringing voltage of the rectifier diode and to enhance the efficiency of the flyback DC/DC converter.

Abstract: A display panel including a first substrate; a second substrate separated from the first substrate; a barrier rib structure disposed between the first and second substrates defining a plurality of discharge cells; a plurality of first electrodes extending in a first direction, the first electrodes in the barrier rib structure; a plurality of second electrodes separated from the first electrodes in a second direction from the first substrate towards the second substrate, the second electrodes in the barrier rib structure; a plurality of third electrodes extending in a third direction crossing the first direction, the third electrodes on a surface of the first substrate facing the discharge cells; and a plurality of phosphor layers on surfaces of the third electrodes facing the discharge cells.

Abstract: There is provided a backlight driving system for a liquid crystal display that can reduce size and weight of a product because a DC-DC converter is not used when commercial AC power is converted into lamp driving power. A backlight driving system for a liquid crystal display according to an aspect of the invention includes a power supply unit converting commercial alternating current (AC) power into direct current (DC) power having a voltage level set beforehand, an inverter unit converting the DC power from the power supply unit into AC power at a one-to-one conversion ratio set beforehand, a boosting unit boosting the AC power from the inverter unit into lamp lighting power set beforehand; and a lamp group receiving the lamp lighting power from the boosting unit to emit light.

Abstract: An apparatus for setting a common voltage include a screen generator, a flicker measuring part, a main controller and a read-only memory (“ROM”) programming part. The screen generator generates image data of a test screen. The flicker measuring part measures flicker on the test screen displayed on a display panel to which a common voltage corresponding to an estimated setting value is applied. The main controller calculates a measured flicker index from the measured flicker and compares the measured flicker index with a predetermined threshold value to determine a setting value corresponding to a flicker index of a plurality of calculated flicker indexes that is less than the threshold value. The ROM programming part writes the determined setting value to a ROM of a display module. Therefore, a common voltage is reestablished by the setting value, thus preventing flicker due to process variations.

Abstract: A shift register includes a plurality of stages each generating an output signal in sequence and including a buffering section, a driving section, a first charging section, and a charging control section. The buffering section receives one of a scan start signal and an output signal of a previous stage so that the driving section generates the output signal of a present stage. The first charging section includes a first terminal electrically connected to the driving section and a second terminal electrically connected to a first source voltage. The charging control section applies the output signal of a next stage to the first charging section. Therefore, a gradual failure of TFT is reduced.

Abstract: An electrode sheet for a plasma display panel and a plasma display panel utilizing the same. The electrode sheet for the plasma display panel includes: a dielectric layer having a first surface and a second surface and including a discharge hole for providing a side wall of a discharge space, the dielectric layer being composed of metal oxide (MxOy); and a discharge electrode including a discharge unit around a perimeter of the discharge hole and a connection unit for connecting the discharge unit and another discharge unit to each other, the discharge electrode being within the dielectric layer and composed of metal (M) of the metal oxide (MxOy). Here, the discharge unit of the discharge electrode is within the dielectric layer such that the first surface of the dielectric layer has an area differing from that of the second surface of the dielectric layer.

Abstract: A plasma display panel, and a method for manufacturing the same. The plasma display panel includes a first electrode sheet between a first substrate and a second substrate facing the first substrate; and a second electrode sheet between the second substrate and the first electrode sheet. The first electrode sheet includes a plurality of first inner lines, each of the first inner lines including a first discharge electrode and a first dielectric layer enclosing the first discharge electrode and composed of an anodized material of the first discharge electrode, the second electrode sheet includes a plurality of second inner lines, each of the second inner lines including a second discharge electrode and a second dielectric layer enclosing the second discharge electrode and composed of an anodized material of the second discharge electrode.

Abstract: A plasma display panel includes a first electrode sheet and a second electrode sheet. Each sheet includes inside lines extending in one direction, each inside line having a discharge electrode forming a closed curve discharge unit and being separated from and electrically connected to an adjacent closed curve discharge unit by a first connection unit. The discharge electrode is of a material subject to an anodization such that anodization forms a dielectric layer having an anodization thickness to an outside of the closed curve discharge unit larger than an anodization thickness to an inside of the closed curve discharge unit, the inside of the closed curve discharge unit forming a sheet discharge hole.

Abstract: A plasma display panel including: a first substrate; a second substrate separated from the first substrate; and two or more electrode sheets facing each other and between the first and second substrates, each of the two or more electrode sheets including opening patterns to form discharge spaces, wherein each of the two or more electrode sheets includes: a plurality of discharge electrodes extending in a direction and surrounding at least a part of the discharge spaces, and having corners with round curved portions contacting the discharge spaces or adjacent to the discharge spaces; and an insulating member integrally formed between the discharge electrodes for supporting the discharge electrodes and for insulating the discharge electrodes from each other, and including an oxide of a metal used to form the discharge electrodes.

Abstract: An electrode sheet for a plasma display panel including a conductive discharge unit and a dielectric layer, the conductive discharge unit being covered (or encapsulated or buried) by the dielectric layer, and a plasma display panel using the same. The electrode sheet according to an embodiment of the present invention may be economically and easily manufactured using a metal anodizing process.

Abstract: A plasma display panel (PDP) in which oxide film-coated aluminum wire electrodes are formed between adjacent discharge cells while an image is displayed on front surfaces of the discharge cells. The PDP includes a first substrate and a second substrate spaced apart from the first substrate and facing the first substrate. Barrier ribs are disposed between the first substrate and the second substrate and define a plurality of discharge spaces. Discharge electrodes are arranged between adjacent discharge spaces in order to be exposed to the discharge spaces while an image is displayed on front surfaces of the discharge spaces.

Abstract: A method of driving a display device having a plurality of pixels, a plurality of sensing units, and a plurality of sense data lines to which the plurality of sensing units are connected, includes: reading sense signals from the sense data lines; determining whether or not the display has been touched and the number of touches, generating X-axis and Y-axis position data based on the sense signals, and determining, when the quantity of touches is plural, whether a plurality of touches are sequentially generated, and the touch position of each.

Abstract: A plasma display panel is provided in discharge spaces in which phosphor layers are disposed between first and second electrodes which are spaced apart from each other. The cross-sectional area of each discharge space in two regions where the first and second electrodes are respectively arranged has a different structure.

Abstract: A PDP with improved durability is provided. The PDP includes a first substrate and a second substrate facing the first substrate. An electrode sheet is between the first substrate and the second substrate. The electrode sheet includes barrier ribs, a plurality of discharge cells, discharge electrodes for generating discharge in the discharge cells, and one or more through-holes. A sealant is disposed in the one or more through-holes for sealing the first substrate and the second substrate.

Abstract: An image display apparatus and a method of adjusting brightness are provided. The image display apparatus includes a display panel unit which displays an image, a digital micromirror device (DMD) panel unit which reflects incident light using a plurality of DMDs to the display panel unit to provide a backlight of the display panel unit. According to the present invention, a backlight of the display panel is provided by reflecting incident light onto the display panel using the plurality of DMDs so that the image display apparatus and a method of adjusting brightness thereof which improve a contrast ratio are provided.

Abstract: An apparatus for driving a display panel includes a timing control part, a line memory part, a frame memory part and an image compensation part. The timing control part receives a horizontal synchronizing signal from an external system via a CPU interface process. The line memory part stores an image signal of an n-th frame in a line unit, based on the horizontal synchronizing signal. The frame memory part stores an image signal of an (n-1)-th frame based on the horizontal synchronizing signal. The image compensation part generates a compensated image signal of the n-th frame using the image signals of the n-th and (n-1)-th frames, which are respectively outputted from the line memory part and the frame memory part, based on the horizontal synchronizing signal. Accordingly, display quality in a CPU interface mode may be enhanced.

Abstract: An alternating current type plasma display panel with electrodes of asymmetrical construction and a method for driving the same. A first pulse is applied to the first electrode. A second pulse is applied to the second electrode, the second pulse having a width and a phase different from those of the first pulse. The pulse widths are adjusted according to a size of the electrodes to make an amount of a wall charge in two electrodes substantially uniform, thereby making the intensity and an amount of the light uniform.

Abstract: A plasma display panel including: a first substrate; a plurality of first electrodes and a plurality of second electrodes, the first and second electrodes being disposed in parallel on the first substrate; a first dielectric surrounding the first electrodes and the second electrodes and connecting the first electrodes and the second electrodes; a passivation layer on the first dielectric and on the first electrodes and the second electrodes; a second substrate facing the first substrate; a plurality of third electrodes on the second substrate and crossing the first electrodes and the second electrodes; and a second dielectric on the third electrodes.

Abstract: A plasma display panel includes a pair of substrates having a first substrate where an image is displayed and a second substrate. A barrier rib structure separates the substrates and has discharge cells within the barrier rib structure. Discharge electrode pairs are in the barrier rib structure, at least one of the discharge electrode pairs surrounding a discharge cell. A ferroelectric layer is on surfaces of the barrier rib structure forming the discharge cells. A phosphor layer is in each of the discharge cells.