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 first scan electrode, a second scan electrode, a first sustain electrode corresponding to the first scan electrode and a second sustain electrode corresponding to the second scan electrode, a scan driver and a sustain driver. The scan driver supplies a set-down pulse falling from a first voltage to a second voltage to the first and second scan electrodes during a set-down period, and supplies a first scan pulse to the first scan electrode and a second scan pulse to the second scan electrode during an address period. The sustain driver forms a gradually falling voltage in the second sustain electrode during at least a portion of a total period of time when the set-down pulse is supplied.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel including a data electrode, and a driver. The driver raises a voltage of a data pulse supplied to the data electrode during an address period to a sum of a first voltage level higher than a ground level voltage and a second voltage level higher than the first voltage level.

Abstract: A plasma display apparatus comprises a plasma display panel that comprises an electrode; a sustain driver that supplies a sustain signal to the electrode and that comprises a first and second switching elements for supplying the sustain signal; and a first and second gate drivers that drives each of the first and second switching elements, wherein the first gate driver receives a driving voltage for driving the first switching element from a driving voltage source of the first gate driver, the second gate driver comprises a driving voltage source that supplies a driving voltage for driving the second switching element, and an auxiliary voltage for assisting the driving voltage is supplied from the outside of the second gate driver so that the second switching element is driven by the driving voltage.

Abstract: A plasma display device in which at least one of a first sustain pulse having a first leading period and a second sustain pulse having a second leading period shorter than the first leading period is applied between row electrodes forming each row electrode pair by a number of times previously determined for each subfield, in a sustain period, and an application ratio between the first sustain pulse and the second sustain pulse in the sustain period of each subfield is changed in accordance with a luminance level of a video signal.

Abstract: Disclosed are an electron emission display device and a driving method thereof capable of elevating a luminance and enhancing its lifetime. A pixel portion displays an image corresponding to voltages of a first electrode and a second electrode. A data driver transfers a data signal to the first electrode. A scan driver transfers a scan signal to the second electrode. A current measuring section measures an emission current flowing through the pixel portion. A power supply unit outputs an electric drive source. A voltage controller changes a voltage of an electric drive source corresponding to the emission current measured by the current measuring section. The voltage controller controls the emission current flowing through the pixel portion by the changed voltage of the electric drive source, so that a magnitude of the emission current is less than that of an initially set emission current.

Abstract: A method for driving display units having different frequency spectra includes generating a plurality of sweep signals according to luminous characteristics of a plurality of display units having different frequency spectra, and controlling luminous periods of the display units based on the corresponding sweep signals and a data voltage. Temperature variances are recorded and correction values are generated for adjusting sweep voltages.

Abstract: The invention provides a display device that achieves optimization of an RGB signal without increasing power consumption required for displaying a test image. A display device of an embodiment of the invention has a display panel displaying an image corresponding to an RGB signal, a signal processing circuit portion including a plurality of signal processing circuits optimizing the RGB signal, an ACL circuit controlling the RGB signal so that the display panel emits light with predetermined electric power or less, and first and second test circuits respectively supplying first and second test image signals corresponding to first and second test images for the optimization to the display panel.

Abstract: There is provided an EL light-emitting device with less uneven brightness.

Abstract: Each pixel of a display device has a current supply circuit, a switch portion, and a light emitting element. The light emitting element, the current supply circuit, and the switch portion are connected in series between a power supply reference line and a power supply line. The switch portion is switched between ON and OFF using a digital video signal. The amount of constant current flowing in the current supply circuit is determined by a control signal inputted from the outside of the pixel. When the switch portion is ON, a constant current determined by the current supply circuit flows in the light emitting element and light is emitted.

Abstract: A high performance flexible, thin, flat panel display, has a linear array of switchable light emitting diodes (“LEDs”) to emit bands of light across the display, providing a light pattern programmable at video frequencies and a two-dimensional electropolymeric shutter array to convert the light pattern into a video image. In preferred embodiments, the light pattern can be varied or controlled spatially, with respect to both hue and intensity, by suitable drive signals, at points along the array determined by the location of individual LEDs, or groups of LEDs, and temporally as the shutters in the array are opened and closed, to provide a pleasing full color gamut for every pixel in the display. Closed shutters, displaying a reflective appearance, can be employed for background or other effects. The shutter array can be flexibly constructed and supported on a flexible substrate to provide a flexible display. Methods of manufacturing the display and displaying video images are also disclosed.

Abstract: A color display panel comprises at least one pixel. The pixel comprises a sub-pixel circuit of a type comprising a light-emitting cell (13) for emitting light with a first spectral distribution when a voltage in a first operating range is applied, and for emitting light with a different spectral distribution when a voltage in a second operating range is applied. The color display panel further comprises at least one data line (8) for passing a signal controlling the emission of light by the light-emitting cell to the first sub-pixel circuit. The sub-pixel circuit further comprises at least two active components (9, 10) for applying respective voltages to the cell (13) in dependence on respective reference voltages under control of the signal.

Abstract: Various embodiments of moving between light interaction states are disclosed.

Abstract: A pixel is driven with pulse width modulation (PWM). A cycle for the PWM signal is divided into a plurality of super-intervals. Each of the super-intervals is divided into a plurality of intervals. An interval index is stored for the pixel. The timing at which the pixel is changed from one state to another is selected based on an enable signal and the stored interval index.

Abstract: A method and system for compensating for the response characteristics of a display using field sequential addressing and pre-processing. Utilizing a display with multiple backlights of various colors, each pixel of the display can be represented with a single LCD element. By examining the changes in the intensity of the fields (e.g., red, green and blue) on a pixel-by-pixel basis for respective fields as the frames change, and before the pixels are displayed, the signal used to drive the LCD element can be compensated to adjust for display properties (e.g., the slowness of a display that might otherwise cause artifacts).

Abstract: An object of the invention is to provide the miniaturized gray scale voltage outputting device.

Abstract: A circuit for driving a liquid crystal display device, as embodied, includes: a gray level voltage generator for generating a plurality of gray level voltages; and an intermediate gray level voltage generator for receiving a first gray level voltage and a second gray level voltage among the plurality of gray level voltages and for selectively outputting one of the first gray level voltage and a third gray level voltage through a plurality of capacitors, a value of the third gray level voltage being between the first and second gray level voltage and set by the plurality of capacitors, the intermediate gray level voltage generator including: an operational amplifier for pre-charging the plurality of capacitors using a current outputted from the operational amplifier and for selectively outputting one of the first gray level voltage and the third gray level voltage.

Abstract: A method for driving a liquid crystal display includes: a) receiving a video signal from a first group of gray scales values; b) comparing a current frame of the video signal with a previous frame to determine whether the current frame is in a static state or in a dynamic state; c) when the current frame is determined to be in the static state, converting the video signal to a driving signal; d) when the current frame is determined to be in the dynamic state, calculating a overdrive signal. The value of the driving signal is selected from a second group of gray scale values having at least one decimal point gray scale and having the same number of gray scale values as that of the first group of gray scale values. The value of the overdrive signal is selected from the first group of gray scale values.

Abstract: A pixel circuit, a display device, and a method of driving a pixel circuit able to obtain a source-follower output without luminance deterioration even when the current-voltage characteristic of a light emitting element changes due to aging, making a source-follower circuit of n-channel transistors possible, and in addition able to display uniform and high quality images not without regard to variations of threshold values and mobilities of the active elements inside pixels, wherein a capacitor C111 is connected between a gate and a source of a TFT 111, the source side of the TFT 111 is connected to a fixed potential (GND) through a TFT 114, a predetermined reference current Iref is supplied to the source of the TFT 111 with a predetermined timing, a voltage corresponding to the reference current Iref is held, and an input signal voltage centered about the voltage is coupled, whereby an EL light emitting element 19 is driven centered about the center value of variation of the mobilities.

Abstract: An organic electro-luminescence display apparatus including a substrate, data lines and scan lines, a plurality of first, second and third organic electro-luminescence units, at least one first source driver, second source driver and third source driver and a gate driver is provided. Data lines and scan lines are disposed on the substrate to define a plurality of pixel areas. Each first, second, and third organic electro-luminescence unit is disposed in corresponding pixel area. Each first, second, and third organic electro-luminescence unit is electrically connected with one of the data lines and scan lines correspondingly. Each source driver is disposed at one side of the substrate. The data lines electrically connected with the first, second and third organic electro-luminescence units are electrically connected with corresponding source drivers. The gate driver is disposed at another side of the substrate and electrically connected with the scan lines. The luminous efficiency can be enhanced.

Abstract: There is disposed a TFT for detecting characteristic having the same characteristic as a pixel TFT disposed at a pixel. The TFT for detecting characteristic detects a gate on voltage for driving the pixel TFT. The TFT for detecting characteristic is driven so as to agree with the pixel TFT in a period of the on state. This provides a display device that is capable of driving the pixel TFT at its optimum driving voltage with a simple circuit configuration, even when the characteristic of the pixel TFT is subjected to temperature change, aged change, and individual variations.

Abstract: A display and the thin-film-transistor discharge method therefore are used for providing a dual-gate thin film transistor to drive the electroluminescent element to emit light. While the thin film transistor (TFT) is discharged, an electric field is formed between the top-gate and the bottom-gate. The electric field is for improving the electric discharge effect at the channel of the TFT, and the magnitude of the applied electric field corresponds to the magnitude of the pixel voltage.

Abstract: A drive circuit for a bi-stable display comprises: a driver (101, 102) which supplies drive waveforms (DWk) to the pixels (Pij) of the display during an image update period (IUk) wherein the image presented by the pixels (Pij) is updated. A temperature sensing circuit senses the temperature of the display. A controller (103) controls the driver (101, 102) to supply, during the image update period (IUk) wherein a particular optical transition of a particular one of the pixels (Pij) is required, an associated one of the drive waveforms (DWk) to the particular one of the pixels (Pij). The associated one of the drive waveforms (DWk) comprises a sequence of a particular number of pulses (SPk), wherein consecutive ones of the pulses (SPk) of the sequence are separated by a non-zero separation period of time (SPT), during which period a voltage level is supplied which substantially keeps an optical state of the particular one of the pixels (Pij) unaltered.

Abstract: A liquid crystal display is provided that allows miniaturization, cost lowering, thickness reduction, and saving of unnecessary spaces of the device, and enhancement of the reliability of the device. If a variable resistor is used to set the DC potential of a VCOM potential, miniaturization of a liquid crystal display is precluded since the size of the variable resistor is large. A DA converter (20) is used instead of a conventional variable resistor as a unit for setting (adjusting) the DC potential of a VCOM potential (counter electrode voltage), and the DA converter (20) is formed on the same glass substrate (11) by using the same process as those of a display area part (12), to thereby achieve miniaturization of the liquid crystal display.

Abstract: A source-follower-type analogue buffer with an active load, a new compensating operation and a display with the source-follower-type analogue buffers are developed to minimize the variation from both the charging time and the device characteristics and maximize the range of the input voltage. In the source-follower-type analogue buffer, during a compensation period, a voltage drop is stored in a proposed storage capacitor, and during a data-input period, the output voltage is compensated by the voltage stored in the storage capacitor.

Abstract: A driving circuit of a display device includes a timing controller for combining p first digital data signals (p being a positive integer greater than 1) corresponding to colors for displaying images to generate q second digital data signals and for supplying the q second digital data signals to first to qth data transmission lines (q being a positive integer smaller than p), and a plurality of data driver integrated circuits for processing the q second digital data signals from the timing controller to restore the p first digital data signals, converting the p restored digital data signals into analog data signals, and supplying the analog data signals to a display panel.

Abstract: There are provided a liquid crystal display and a pre-charge driving method thereof. The liquid crystal display includes a liquid crystal panel; a gate driver; a data driver; a pre-charge driver that sequentially transfers pre-charge signals to each of data lines by data enable signals before data signals are transferred to each of the data lines; and a timing controller. The pre-charge driving method of a liquid crystal display comprises sequentially supplying scan signals to each of a plurality of gate lines; sequentially transferring pre-charge signals to each of a plurality of data lines by data enable signals; and sequentially transferring data signals to each of the data lines by the data enable signals after the pre-charge signals are transferred to each of the data lines.

Abstract: Scan driving circuit having a number of stages coupled together in series and coupled with first and second lock signal input lines. Each of the stages receives a start signal or an output signal of a previous stage and includes a transfer unit, an inversion unit, and a buffer unit and produces the output signal. The output signal of each of the stages includes a low level signal, the low level signal of each stage is sequentially shifted by one half of the clock signal period with respect to the low level signal of a previous stage. The series of shifted low level signals form the scan signals output by the scan driving circuit for driving an organic light emitting display device.

Abstract: In conventional liquid crystal display controllers such as for portable telephone sets, the display is reduced in the stand-by state but the liquid crystal display duty is not changed, i.e., even the common electrodes of the rows that are not producing display are scanned, and the consumption of electric power is not decreased to a sufficient degree in the stand-by state. A liquid crystal display controller (2) includes a drive duty selection register (34) capable of being rewritten by a microprocessor (1), and a drive bias selection register (32). When the display is changed from the whole display on a liquid crystal display panel (3) to a partial display on part of the rows only, the preset values of the drive duty selection register and of the drive bias selection register are changed, so that the display is selectively produced on a portion of the liquid crystal display panel at a low voltage with a low-duty drive.

Abstract: In a display device which includes a scanning circuit, an ON resistance of a non-selection switch of the scanning circuit is set larger than an ON resistance of a selection switch. By setting the ON resistance of the non-selection switch of the scanning circuit larger than the ON resistance of the selection switch, an element size of the non selection switch can be made small and hence, a chip size of a scanning driver which is formed of a semiconductor integrated circuit constituting a scanning circuit can be made small without adversely influencing the display characteristics of the display device.

Abstract: A flat panel display with reduced malfunction rate and improved image quality and a method for making such flat panel display are presented. The flat panel display is operated by a gate drive circuit that receives a first gate signal for driving a first gate line at one end of a data line and a second gate signal for driving a second gate line at the other end of the data line. First and second clock signals are supplied to the gate drive circuit, and the width of the first and second clock signal lines are adjusted such that a phase difference between the first gate signal and the second gate signal corresponds to a signal delay time between the two ends of the data line. The first and second clock signal lines and the gate and data lines are integrated.

Abstract: The invention provides an electro-optical device that includes an X address decoder that selects one of a plurality of X selection lines, a Y address decoder that selects one of a plurality of Y selection lines, and a plurality of pixel blocks, each of the pixel blocks being provided with respect to an intersection of a corresponding one of the plurality of the X selection lines and a corresponding one of the plurality of the Y selection lines. Such an electro-optical device is further configured as follows. Each of the plurality of the pixel blocks includes at least one pixel circuit. The pixel circuits corresponding to a column share a bit line and a complementary bit line. Each of the pixel circuits includes a memory circuit, a selection circuit, and a pixel electrode.

Abstract: Provided is a driver for a display apparatus and a display apparatus having the same. The driver includes a plurality of gate lines that transmit gate signals, and first and second gate drivers that are respectively connected to odd-numbered and even-numbered gate lines among the plurality of gate lines and generate the gate signals based on a plurality of clock signals, wherein two adjacent clock signals among the plurality of clock signals have a phase difference equal to or greater than 180° and less than 360°. Accordingly, voltage drop caused by a kickback voltage occurs only one time by allowing two adjacent clock signals to have a predetermined time delay from each other, so that a positive data voltage is the same as a negative data voltage, thereby preventing flicker or stain.

Abstract: The aim of the invention is to largely prevent certain influences from distributing the luminance of an image that can be reproduced on a panel of a flat screen. To this end, light-permeable parts are arranged between a sensor and a back light illuminating the panel from the rear, the ageing and/or temperature properties of said light-permeable parts essentially corresponding to those of the light-permeable parts of the panel.

Abstract: An apparatus for forming a colored image on a display, includes a VCSEL array device having a plurality of light-emitting pixels wherein each light-emitting pixel produces a beam of light including substantial components in a portion of the visible spectrum so that different light-emitting pixels produce different colored light; and a light shutter layer for each light-emitting pixel providing a modulator disposed in the path of the corresponding light beam for selectively passing corresponding colored light for providing a colored light image on the display.

Abstract: A display device includes a light source, a light guide plate diffusing light issuing from the light source and a non-light-emitting display panel illuminated with light being emitted from the light source via the light guide. The display device includes a storage for storing correction values determined beforehand for making the luminance on the display panel substantially uniform. The display device also includes a corrector for reading out one of the correction values corresponding to a position where display data are displayed from the storage and for correcting the gain of the display data for thereby making the luminance on the display panel substantially uniform.

Abstract: A liquid crystal display and control method thereof, having a liquid crystal display panel, a light emitting diode device which is disposed on the rear of the liquid crystal display panel and which is divided into a plurality of partitioned areas that are capable of being driven independently, a light guide part disposed for each of the partitioned areas, an image calculating part for dividing the liquid crystal display panel into a plurality of regions and calculating the brightness of each region by using image data, and an inverter and an inverter controller to provide differentiated power to the partitioned areas based on the calculated brightness.

Abstract: The present invention relates to an LCD and a method for improving display thereof where a plurality of LED devices are mounted on a rear of LCD panel, and a partition which allows the plurality of the LED devices to be disposed in a plurality of partitioned areas is provided. The thickness of the partition narrows toward the LCD panel. A power supplier supplies power to the plurality of LED devices, and a controller controls the power supplier to supply the power to the LED device in each divided area sequentially and repeatedly. An LCD with improved contrast ratio while LED devices are separately driven in a plurality of partitioned areas is achieved.

Abstract: A liquid crystal display device includes a liquid crystal display panel having plural pixels, a lighting device having at least one light source and projecting light generated by the light source on the liquid crystal display panel, and a circuit supplying a first current during a first period and a second current smaller than the first current during a second period to the light source alternately. The circuit includes a current monitoring circuit which measures the first current and the second current, and a light control circuit which adjusts a ratio of the first period to the second period based upon a signal from the current monitoring circuit.

Abstract: A display device (1) has electrophoretic particles (8, 9), a display element including electrodes (5, 6), between which a portion of the electrophoretic particles (8, 9) is present, a temperature sensor (25) and a processor (15) for supplying a driving pulse (32) to the electrodes (5, 6) to bring the display element to a predetermined black, gray or white state, corresponding to the image information to be displayed. For improved grayscale accuracy and optimal picture and text quality, the processor (15) is further arranged to supply pre-pulses (31) preceding the driving pulses (32). The energy of the pre-pulses (31) is increased with increased temperature measured by the temperature sensor (25) and is sufficient to release the electrophoretic particles at a first position near one of the two electrodes (5, 6), but too low to enable the particles to reach a second position near the other electrode (5 or 6).

Abstract: In an image display device, in which image display media are sealed between opposed substrates, at least one of two substrates being transparent, and, in which the image display media, to which an electrostatic field is applied, are made to move so as to display an image, at least back substrate positioned at a rear side with respect to a visual side is made of a resin material. Moreover, a substrate stacking apparatus is constructed by a reading mechanism for optically reading an alignment mark; a stage for fixing at least one substrate; and a driving mechanism for driving the stage in a horizontal direction (xy direction); wherein the reading mechanism for performing the optical reading is arranged on the stage for fixing a lower substrate.

Abstract: An accurate greyscale is obtained with more natural image updates when updating a display (310) in a bi-stable electronic reading device (300,400), such as one using an electrophoretic display, by applying a first shaking pulse (S1) to the display, applying a first portion (R1) of a reset pulse to the display following the first shaking pulse (S1), applying a second shaking pulse (S2) to the display following the first portion (R1), and applying a second portion (R2) of the reset pulse to the display following the second shaking pulse (S2). The first portion may have a standard reset duration, while the second portion has an over-reset duration. A visual shock effect is avoided which would otherwise as applied after the entire reset pulse.

Abstract: The electrophoretic display panel (1) for subsequently displaying pictures has a plurality of picture elements (2) and drive means (100). The drive means (100) are able to supply to each picture element (2) a picture pulse. Each picture pulse is a sequence of potential difference pulses and has a response-increasing pulse for increasing the ability of the particles (6) to respond to the potential difference without substantially changing the position of the particles (6), and a drive pulse for bringing the particles (6) into one of the positions for displaying the respective picture.

Abstract: An electrophoretic display panel (1), comprises drive means (100) for controlling the potential difference of each picture element (2) to be a reset potential difference for enabling particles (6) to substantially occupy one of the extreme positions, and subsequently to be a grey scale potential difference for enabling the particles (6) to occupy the position corresponding to the image information.

Abstract: Provided is a substrate for a liquid crystal display which is resistant to deformation. The substrate includes a flexible substrate, first and second barrier layers respectively disposed on first and second surfaces of the flexible substrate, and first and second hard coating layers respectively disposed on the first and second barrier layers.

Abstract: Various embodiments of a method and apparatus for actuating pixel elements are disclosed.

Abstract: It is discloses a communication device, system and method comprising a Virtual Retinal Display (VRD) in form of glasses (1), at least one haptic sensor (12) mounted on the frame of said glasses or connected by a short range communication interface (13) to said glasses (1), wherein it is possible to navigate by means of a cursor through an image displayed by the Virtual Retinal Display (VRD) with the at least one haptic sensor (12). A central control unit controls (11) the Virtual Retinal Display (VRD) and the at least one haptic sensor (12). When the Virtual Retinal Display (VRD) is connected to an external device (2, 9) by a short range communication interface (13), the user can navigate through the content of the external device (2, 9) by easy use of the haptic sensor (12).

Abstract: A display device including a main body, a front plank and a hinge assembly is provided. The hinge assembly links the front plank and the main body. The hinge assembly includes a first component, a second component having protrusions and a third component having sleeves. The first component is disposed on the main body, the second component having protrusions is pivoted on the first component, and the third component having through holes for the sleeves to lodge in is disposed on the front plank. The protrusions sleeve to the sleeves detachably so that the front plank is easily assembled onto the main body.

Abstract: A control device including a housing and a carrier moveable with respect to the housing in a first rotary degree of freedom. A first sensor senses the movement of the carrier and outputs a first control signal. A roller rotatably coupled to the carrier rotates with the carrier in the first degree of freedom and rotates independently of the carrier in a second rotary degree of freedom. A second sensor senses rotary motion of the roller and outputs a second control signal. Preferably, an arm member coupled between carrier and housing pivots about an axis. A third sensor, such as a switch, can be used to detect when the carrier has been pushed in a direction substantially orthogonal to a plane of rotation of the arm member. Force feedback can also be provided in the rotary degrees of freedom of the control device.

Abstract: A remote controller (1000) includes a pointer (1200) for inputting information and a main module (1100). The main module includes a first detection module (1101), a position interpreting module (1102), an information processing module (1106), and a wireless communication module (1107). The first detection module is used for detecting information input by the pointer. The position interpreting module is used for translating the information into position information and control information. The information processing module is used for translating the position information and the control information into cursor location information and remote control codes. The wireless communication module is used for transmitting the cursor location information and the remote control codes.

Abstract: A mechanism for inclining a first housing relative to a second housing of a computer input device. The first housing has at least a support, and an axial line of the support is screwed into the lower housing. The support is inclinable relative to the lower housing at an angle sufficient to activate a corresponding micro switch within the input device.