Abstract: A radio wave timepiece includes: a display unit, a display drive unit, a receiver unit and a control unit. The display unit displays a current time in a digital manner. The display drive unit drives the display unit by a drive signal of a predetermined drive waveform frequency. The receiver unit is capable of receiving radio waves of a plurality of different frequencies including time information. The control unit sets the drive waveform frequency during the reception of a radio wave by the receiver unit so that harmonic frequencies with respect to the drive waveform frequencies can be different from a receiving frequency of the radio wave.

Abstract: The present invention ensures the visibility of a character or a drawing displayed on a screen. The illuminance of one or more partial areas forming a display unit is measured, and a video display position is set to an area except for the partial area where the illuminance is a reference value or more.

Abstract: A display apparatus, that can prevent thermal destruction and burning with a simple structure, has been disclosed. In the apparatus it is judged that there is possibility of a pattern, whose area with high brightness is small, being displayed frequently, when a state in which the total light emission pulse number remains large occurs with high frequency, and if such a state is detected, the total light emission pulse number (sustain frequency) is reduced to prevent the thermal destruction and burning.

Abstract: A display apparatus is provided. The display apparatus includes: a self-luminous display panel; a processor configured to designate a pixel of the self-luminous display panel which corresponds to image data and configured to process the image data to be displayed as an image by discharging the self-luminous display panel so that the designated pixel emits light; and a controller configured to convert a control instruction to control an operation of an external device into a waveform according to a protocol that the external device is able to receive in response to the control instruction being received, and configured to control the external device to operate through electromagnetic interference (EMI) radiated from the self-luminous display panel by additionally discharging the self-luminous display panel with the converted waveform during a period in which the self-luminous display panel is discharged.

Abstract: A device, in which circuit size is small and operation is stable, comprises a plurality of serially connected unit registers (shift registers) in which transfer is controlled by any of three or more clock signals each having a different phase, and a setting signal which determines shift direction; and a selection circuit (switch array) which can select at least one clock signal from the three or more clock signals in accordance with the setting signal; wherein the unit registers are put in a reset state by one clock signal selected by the selection circuit, corresponding to each of the unit registers

Abstract: A flat panel display including a plurality of electrically addressable pixels; using a passive matrix on a first substrate, a passivating layer on at least partially around the pixels; a conductive frame on the passivating layer, and a plurality of cold cathode emitters on select portions of the conductive frame within the display, wherein exciting the conductive frame and addressing one of the pixels using the associated passive matrix causes electrons to strike at least one of the pixels and result in the emission of light from those pixels. Using a metal layer (ML) on a second substrate the extent of electrons emitted is enhanced through the incorporation of a noble gas or mixture thereof, causing a multiplication of the electrons emitted by the cold cathode when the gas is ionized.

Abstract: An electro-optic display includes an electro-optic medium, a pixel electrode for applying an electric field to the medium and a column electrode associated with the pixel electrode. To reduce power consumption, when it is necessary to change the voltage on the column electrode from a first value to a second value to change the optical state of the electro-optic medium, the column electrode voltage is first changed to a third value intermediate the first and second values to permit charge to flow to or from the column electrode, and thereafter the column electrode voltage is changed from the third voltage to the second voltage.

Abstract: A plasma display apparatus including a capacitive load and a driving circuit is provided. The plasma display apparatus includes a driving power source supplying a drive voltage to the capacitive load and a reference potential terminal supplying a reference potential to the capacitive load. A drive IC is coupled to the driving power source.

Abstract: A display device includes a pixel which includes a first photosensor portion having a first photodiode for detecting visible light, which is provided together with a display element portion; and a pixel which includes a second photosensor portion having a second photodiode for detecting infrared rays, which is provided together with another display element portion. The second photosensor portion detects infrared rays included in external light, and selects an imaging element and adjusts sensitivity in accordance with the amount of infrared rays detected by the second photosensor portion.

Abstract: A method of driving a plasma display apparatus in which first electrodes and second electrodes are arranged adjacently and third electrodes are arranged to cross the first and second electrodes and in which one field comprises plural subfields having a reset period followed by an address period and a sustain period is provided. The method includes in the reset period in at least two of the subfields, applying a first waveform having a voltage that gradually increases in time to a first reached voltage to the second electrodes, and thereafter, applying a second waveform having a voltage that gradually decreases in time to the second electrodes, wherein the first reached voltages applied in at least two subfields of the subfields are different.

Abstract: A method of driving an electrowetting display device including at least one pixel, the method comprising: applying a first pixel voltage to the pixel during a first portion of the display period; and applying a second pixel voltage to the pixel during a second portion of the display period, the first and second pixel voltages corresponding to a display state of the pixel, and the first pixel voltage and the second pixel voltage having different polarities.

Abstract: A method of manufacturing a support plate for an electrowetting device includes providing a first hydrophobic layer on a substrate, reducing the hydrophobicity of a surface of the first hydrophobic layer and providing a second hydrophobic layer on at least part of the surface with reduced hydrophobicity.

Abstract: Circuits for controlling a data driver of a display device are provided. The circuit may include a bias block that may output a first or second bias current or voltage to the data driver and a control unit that may control the bias block to output the first or second bias current or voltage based on a control signal.

Abstract: A large-scale display device having a plurality of display units which each include a plurality of elongated plasma tubes each filled with a discharge gas, and at least one pair of display electrodes disposed outside the plasma tubes, voltage applying means which applies a drive voltage to the display electrodes to cause electric discharge in the plasma tubes for display. Vertically adjoining ones of the display units respectively have adjoining portions which are offset thicknesswise from each other for prevention of contact between the plasma tubes of the vertically adjoining display units. The voltage applying means is disposed away from the adjoining portions of the vertically adjoining display units.

Abstract: An electrowetting display device includes first and second substrates facing each other and separated from each other, a cell region between the first and second substrates, the cell region including a pixel region and a reservoir region, a first fluid and a second fluid in the cell region, the first fluid being conductive and flowing according to an electrowetting principle and the second fluid being non-conductive and not mixed with the first fluid, and an electrode unit turning on and off the pixel region, the electrode unit including a pixel electrode coated with an insulating material and at least one reservoir electrode coated with the insulating material to promote flow of one of the first fluid and the second fluid into the reservoir region.

Abstract: A plasma display apparatus and method are provided. The plasma display apparatus includes a plasma display panel in which first electrodes and second electrodes are arranged adjacently and third electrodes are arranged to cross the first and second electrodes. The method for driving a plasma display apparatus in which first electrodes and second electrodes are arranged adjacently and third electrodes are arranged to cross the first and second electrodes and in which one field comprises subfields having a reset period followed by an address period and a sustain period includes in a reset period, applying to second electrodes a voltage of a first waveform in which an applied voltage value increases according to a lapse of time and applying to second electrodes a voltage of a second waveform in which an applied voltage value decreases according to a lapse of time.

Abstract: The present invention is directed to a display device assembly which comprises a display device and a luminance enhancement structure. The luminance enhancement structure is directly laminated onto an ITO layer with an adhesive. The assembly of the present invention provides improved performance of the luminance enhancement structure.

Abstract: A method is provided for driving a plasma display panel having parallel first and second electrodes, third electrodes crossing the first and second electrodes, and discharge cells with electrodes crossing mutually in the form of a matrix. The method includes a reset period during which distribution of wall charges in the discharge cells is uniformed, an addressing period during which wall charges are produced in the discharge cells according to display data, and a sustain discharge period during which sustain discharge is induced in discharge cells in which wall charges are produced during the addressing period. The driving method includes during the reset period, in lines defined by the first and second electrodes, applying a first pulse, in which an applied voltage varies with time to induce first discharge, and applying a second pulse in which an applied voltage varies with time to induce second discharge as an erase discharge.

Abstract: A display apparatus connected to an external device through a connection unit and a method of determining the format of an input image uses a connection unit to be connected to an external device and determines the format of a video signal input through the connection unit. Accordingly, it is possible to realize a slim display apparatus.

Abstract: A display drive circuit that performs digital driving for displaying an image of each one frame based on luminance data of a plurality of subframes is disclosed. The display drive circuit includes a conversion section that converts the luminance data having a plurality of bits indicating a luminance level of each of the plurality of subframes into data indicating the luminance level for pixels in a number greater than the number of the plurality of subframes, and a storage section that stores the data converted by the conversion section.

Abstract: A pointing device and a display apparatus applying the same are provided. The pointing device corrects an error that occurs in a boundary between block in calculating a current location of the pointing device and calculates the current location. Accordingly, an error occurring in a boundary between blocks in calculating a current location of the pointing device is prevented.

Abstract: The EMI spectrum of a display device is to comply with respective norms. Therefore, the clock for loading data into data drivers of a display panel is designed to be variable. Consequently, the electromagnetic radiation produced by the loading clock is broadened thereby reducing the peak amplitude. Thus, the limitations of radiation norms can be complied with.

Abstract: A drive circuit includes: first and second P-channel MOS transistors connected with a first voltage; a first N-channel MOS transistor connected between the first P-channel MOS transistor and a ground voltage, and having a gate connected with a first node and configured to receive a first input signal; and a second N-channel MOS transistor connected between the second P-channel MOS transistor and the ground voltage and having a gate connected with a second node and configured to receive a second input signal. An output P-channel MOS transistor is connected between the first voltage and an output node and has a gate connected with the second node, and an output N-channel MOS transistor is connected between the output node and the second voltage and has a gate supplied with an input signal having a same polarity as that of the first input signal. A P-channel MOS transistor has a source connected with the first node, a drain connected with the output node, and a gate connected with the second node.

Abstract: An electrowetting display panel includes an array substrate, a cover substrate, an electrowetting layer, and a hydrophobic pattern. The array substrate includes a display area and a peripheral area surrounding the display area and the cover substrate faces the array substrate. The electrowetting layer is disposed between the array substrate and the cover substrate and includes a polar fluid as a first fluid and a non-polar fluid as a second fluid. The hydrophobic pattern is disposed in the peripheral area.

Abstract: An electrowetting display apparatus includes an electrowetting pixel configured to display an image. The electrowetting pixel includes a polar liquid and a nonpolar liquid arranged between a common electrode and a pixel electrode; and a driving circuit configured to control operations of the electrowetting pixel. The driving circuit includes a memory circuit configured to store an image to be displayed by the electrowetting pixel. The driving circuit is further configured to periodically provide a reset signal to the electrowetting pixel while the electrowetting pixel is displaying the image and provide an image stored in the memory circuit to the electrowetting pixel after the electrowetting pixel cell resets.

Abstract: A display includes a display surface and a bezel. The bezel includes a top surface and a bottom surface. The bezel and bottom surface of the bezel covers a first area of display surface around the perimeter of the display, thereby leaving a second area of the display surface, inside the bezel, uncovered. At least one graphical indicator is disposed at or in the bezel. The display is configured and arranged to produce and emit light from one or more selected portions of the first area of the display surface, which are below the bottom surface of the bezel such that the emitted light passes through the bezel and is effective to illuminate the graphical indicator.

Abstract: An electro-wetting display device includes a polar fluid layer, a pixel electrode, a non-polar black fluid layer, a driving electrode, and a color fluid layer. The non-polar black fluid is deformed by a voltage difference between a voltage applied to the pixel electrode and a voltage applied to the polar fluid layer. the non-polar color fluid is deformed by a voltage difference between a voltage applied to the driving electrode and a voltage applied to the polar fluid layer. The driving electrode receives a voltage having a voltage level varied according to a display mode.

Abstract: A display which includes an array of pixels. Each pixel includes a hydrophobic layer; an electro-wetting fluid adjacent the hydrophobic layer, the electro-wetting fluid including at least first and second fluids immiscible with each other and having different polar properties and different optical properties; and at least one electrode wherein application of a voltage to the electrode alters a wetting effect of the electro-wetting fluid on the hydrophobic layer in a light-modulating area of the pixel. The display further includes a light-concentrating substrate including an array of light-concentrating structures each configured to concentrate light onto the light-modulating area of a corresponding one or more pixels within the array of pixels.

Abstract: An embodiment of the present invention provides a liquid crystal display device. In each pixel circuit, a pixel electrode is connected to a source line via a third transistor. When a refreshing circuit performs a refreshing operation, a boosting signal line is supplied with a voltage pulse. If the pixel electrode is at a high voltage level at this time point, a voltage at a node is boosted and a first transistor turns ON to supply a refreshing voltage to the pixel electrode. If the pixel electrode is at a low voltage level, there is no boost, and the first transistor stays in OFF state, so a node assumes a voltage which is given by an off-resistance ratio of the first and the third transistors, and this voltage is supplied to the pixel electrode.

Abstract: A display method of a plasma display apparatus to which primary color video signals are inputted and which carries out color display by letting phosphors for primary colors emit light is provided. The display method displays the primary color video signals by changing a gray level of an output primary color video signal in accordance with a gray level of an input primary color video signal. When each gray level of the inputted primary color video signals changes from a first value to a second value which is larger than the first value, a gray level of a primary color video signal for a phosphor having the largest influence of luminance saturation properties among the phosphors is increased relative to a gray level of the other primary color video signal.

Abstract: The present invention relates to a plasma display panel including a front substrate, a plurality of electrodes arranged on the front substrate, an upper dielectric layer covering the plurality of electrodes on the front substrate, and a rear substrate arranged opposite to the front substrate, wherein the upper dielectric layer comprises a convex portion thicker than a surrounding portion thereof and a concave portion thinner than a surrounding portion thereof, and the thickness of the portion of the upper dielectric layer corresponding to the concave portion is equal to or more than 0.04 times and equal to or less than 0.9 times of the thickness of the portion of the upper dielectric layer corresponding to the convex portion.

Abstract: A display apparatus and a control method thereof which minimizes power consumed for driving a display unit includes a display unit which displays an image thereon; an image processor which processes an input image signal to display an image on the display unit; and a controller which determines a peripheral area which is an outer part of a main viewing area of the image for a user, and controls the image processor to display the image by reducing a brightness of the input image signal with respect to the peripheral area.

Abstract: The present invention relates to a method of displaying a color video image in a sequential color display panel. The video frame is divided into a plurality of consecutive time segments each assigned to a given color component, and the video level of the pixels of the image is displayed by modulating the display time of the corresponding cells. The invention aims to propose a display method that reduces the blurring effect without causing color break-up. According to the invention, at least one reference time segment is defined in said plurality of time segments, and the image is displayed giving priority to lighting the cells during the reference time segment and the time segments closest to the reference time segment.

Abstract: The present invention discloses a method for and a system for reducing the dynamic false contour in the image of an alternating current plasma display. The method includes the following steps: dividing each frame image into multiple subfields; accounting the number and the probability of the dynamic false contour appeared in each frame image; based on the result of the accounting, carrying out an optimized coding for the pixel data of each frame image, and if there is an error generated by the optimized coding, diffusing the error generated by the optimized coding into neighboring pixels.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a plasma display panel including a scan electrode and a sustain electrode that are positioned parallel to each other and a driver. The driver allows a change amount of a voltage difference between the scan electrode and the sustain electrode in a reset period of a subfield over time in a pattern hold mode in which a pattern of input video data remains in a previous pattern to be different from a change amount of a voltage difference between the scan electrode and the sustain electrode in a reset period of a subfield over time in a pattern change mode in which the pattern of the video data changes.

Abstract: An image signal processor and a method thereof are provided. The image signal processor sets the subfields to the intermediate illuminating statuses and moves the subfields according to the motion vectors, to display an image on a plasma display panel (PDP). Accordingly, problems such as pseudo contour, motion blur or rounding error can be prevented, and an image enhancement of a PDP is provided.

Abstract: This disclosure relates to a method for driving an AC type plasma display panel. According to this disclosure, an elapse time period between an end time point of ramp-down and a time when a first scan pulse is applied is maintained to be uniform even when a ramp-down slope is different in such a manner that a comparator of a scan electrode driving circuit compares an output voltage with a reference voltage and a logic control circuit outputs a control signal to a logic control circuit when the output voltage is equal to the reference voltage. Accordingly, the method for driving the AC type plasma display panel is capable of improving an address characteristic and a driving margin.

Abstract: A computer receives data from a keyboard having one or more keys which cause generation of keyboard data that quantitatively describe the relative force applied to those keys. The keyboard data are transmitted in an HID report containing identifiers for one or more keys that have been pressed and force data for each key. The force data may be a multi-bit value quantifying the key force, or a null indicator signaling that the key is not force-sensing. Keyboard data messages are then prepared which identify keys pressed, contain force data, and may indicate whether the force data updates previous force data. Force updates are only provided to application programs registering for key force data. In other aspects of the invention, key repeat messages are automatically generated for a key held pressed by a user. The key repeat messages are generated at a rate controlled by the amount of force applied to the key.

Abstract: A method and system for detecting and reducing botnet activity includes tracking the number of connections to a destination address over predetermined periods of time. A persistence value is assigned to the destination address based on the number of time periods during which the destination address was connected. The persistence value is compared to a threshold value and an alert is generated if the persistence value is greater than the threshold value. Known safe destinations may be entered into a whitelist.

Abstract: A method of driving a plasma display apparatus including a scan electrode and a sustain electrode, that are positioned parallel to each other, are disclosed. The method includes supplying a scan signal to the scan electrode during an address period of a first subfield among a plurality of subfields of a frame, supplying a reset signal to the scan electrode during a reset period of a second subfield immediately following the first subfield, supplying a first signal between the scan signal and the reset signal to the scan electrode, and supplying a second signal overlapping the first signal to the sustain electrode. A pulse width of the second signal is smaller than a pulse width of the first signal.

Abstract: Provided to stabilize generation of address discharge and improve gradation characteristics of display images are the following elements: a plasma display panel; a sustain pulse generating circuit; and a ramp voltage generating circuit including a first ramp voltage generating circuit, a second ramp voltage generating circuit, and a switching circuit. The first ramp voltage generating circuit generates a first ramp voltage gently increasing in an initializing period. The second ramp voltage generating circuit generates a second ramp voltage increasing with a gradient gentler than that of the rising edge of a sustain pulse and steeper than that of the first ramp voltage, at the end of each sustain period. The switching circuit stops the operation of the second ramp voltage generating circuit immediately after the second ramp voltage reaches a predetermined electric potential. In at least one sustain period of one field, no sustain pulse but the second ramp voltage is generated.

Abstract: A stable address operation is performed also when a plasma display panel having a high definition and large screen is driven. For this purpose, a driving method of a plasma display panel is provided. The panel is driven by forming one field using a plurality of subfields each of which has an address period and a sustain period in which sustain pulses varying from a base potential to a voltage at which a sustain discharge is caused in the discharge cell having undergone the address discharge are applied to the display electrode pairs. In the driving method, after generation of the final sustain pulse in the sustain period, an up-ramp waveform voltage which increases from the base potential to a predetermined voltage is applied to the scan electrodes. The predetermined voltage is set lower than the voltage of the sustain pulses.

Abstract: A driving circuit is disclosed that has low power consumption and supplies a current to a load. The driving circuit includes a constant current circuit section to generate and output a predetermined constant current, a current mirror circuit section to generate a current proportional to an input current supplied from the constant current circuit section and supply the current to the load, and a constant voltage supplying circuit section to generate a constant voltage and supply the constant voltage to a series circuit of the load and an output transistor of the current mirror circuit. The constant voltage supplying circuit section gene-rates the constant voltage so that an output voltage of the current mirror circuit section equals an input voltage of the current mirror circuit section.

Abstract: In a display device (10) that includes an upper substrate (first substrate) (2), a lower substrate (second substrate) (3), and a polar liquid (16) and an oil (insulating fluid) (17) that are movable toward an effective display area (P1) or a non-effective display area (P2) in a display space (S) between the upper substrate (2) and the lower substrate (3), the contact angle ?0 of the polar liquid (16) in the oil (17) is 150 degrees or more and 180 degrees or less to a water-repellent film (surface film) (15).

Abstract: Method and apparatus for reducing driver energy consumption of drivers of a display device each supplied by an input codeword as e.g. for data drivers of a plasma display panel supplied by sequences of subfield data bits in form of a codeword comprising a predetermined number of bits are recommended, wherein the apparatus comprises a driver transition energy limitation circuit for toggling bits of the input codeword applied to the driver transition energy limitation circuit and providing a codeword reducing the driver energy consumption. A toggle map, which is generated from a combination of a transition map determining a bit in the input codeword if toggled reduces energy consumption and a flag map determining a number of least significant bits exceeding a cell energy limit value, is applied to an input codeword for the driver to toggle bits of said input codeword for reducing driver energy consumption without a perceivable image quality degradation.

Abstract: The image display quality is improved by uniforming the display luminance. For that purpose, the plasma display device has a plasma display panel, and image signal processing circuit. Image signal processing circuit includes loading correcting section. Section includes number-of-lit-cells calculating section for calculating the number of discharge cells to be lit for each display electrode pair in each subfield, load value calculating section for calculating the load value of each discharge cell based on the calculation result by number-of-lit-cells calculating section, correction gain calculating section for calculating the correction gain of each discharge cell based on the calculation result by load value calculating section and the positions of the discharge cells, and correcting section for subtracting, from an input image signal, the result derived by multiplying the input image signal by the output from correction gain calculating section.

Abstract: A plasma display device and method of driving the device is disclosed. The device includes a driving circuit for driving reset, address, and sustain periods during a subfield of a frame. The driving circuit includes a single switch which is used to drive a display electrode both during the reset period and during the sustain period. The switch being used for both periods removes the need for a second switch, thereby reducing manufacturing and design costs.

Abstract: Provided is a plasma display device including a plasma display panel having a plurality of first and second electrodes extending in the horizontal direction and a plurality of third electrodes extending in the vertical direction, and first electrode driving circuit substrates to supply voltage to the first electrodes, in which center lines in the vertical direction of the first electrode driving circuit substrates are below a center line in the vertical direction of the plasma display panel.

Abstract: A voltage of sustain electrodes is lowered from Ve1 to a ground potential at a time point immediately before a first SF (sub-field). Then, a pulsed positive voltage is applied to data electrodes at a starting time point of a setup period of the first SF. Immediately before this, a large amount of negative wall charges is stored on the sustain electrodes and positive wall charges are stored on the data electrodes, and therefore application of the pulsed positive voltage to the data electrodes generates strong discharges between the sustain electrodes and the data electrodes. After that, application of a ramp voltage to scan electrodes is started at a time point, generating setup discharges between the scan electrodes and the sustain electrodes.

Abstract: When performing the line-sequential addressing for setting the state of each of the cells arranged in rows and columns that constitute a display screen, discharge is generated that has intensity in accordance with display data corresponding to each of all cells belonging to the selected row for each selection of the row. Thus, the priming effect in the following discharge is generated.