Abstract: In a display device with a pixel constituted using an EL element or the like, leak light from a monitoring element that is provided for correcting changes in the properties of the element due to the temperature change, deterioration, or the like is effectively suppressed. The display device has a structure in which an insulating layer is formed over a substrate and a plurality of light emitting elements each of which has a light emitting layer interposed between a first electrode and a second electrode are formed over the insulating layer. Furthermore, at least part of the plurality of light emitting elements has a structure in which an opening is formed in the insulating layer, and the light emitting layer is formed in the opening region of the insulating layer.

Abstract: A circuit for a lighting device comprises a sub-circuit which comprises a series current regulator and a group of solid state light emitters. The current regulator and the solid state light emitters are arranged in series. In some embodiments, the circuit further comprises a fan electrically connected in series in the sub-circuit. In some embodiments, the circuit further comprises a second sub-circuit which comprises a second series current regulator and a second group of solid state light emitters, the first sub-circuit and the second sub-circuit being arranged in parallel. In some embodiments, an anode of the series current regulator is electrically connected to a cathode of one of the solid state light emitters. Also, methods of lighting wherein a sum of voltage drops across light emitters and a current regulator is in the range of from 1.2 to 1.6 times the line voltage.

Abstract: An LED driving apparatus having a temperature compensation function includes a reference voltage generator for generating a first reference voltage and a non-inversion amplification unit for performing non-inversion amplification to a difference voltage between the first reference voltage and a forward voltage with a preset gain. A driving unit adjusts a supply voltage in response to the voltage from the non-inversion amplification unit to supply the adjusted supply voltage to a light source having light emitting diodes. A forward voltage detector detects the forward voltage at an anode of the light emitting diodes of the light source to supply the forward voltage to the non-inversion amplification unit. Luminance variation can be compensated according to temperature changes by using a forward voltage of an LED light source so that the forward voltage of the LED light source can be controlled in association with a target current value of ambient temperature.

Abstract: An apparatus and method for representing gradation are provided. The apparatus for representing gradation comprises a diode which emits light with an intensity which is proportional to the current flowing therethrough, a gradation representation unit that is connected in series to the diode and includes a plurality of switches connected in parallel, and a gray controller which receives a video signal and turns on a number of switches corresponding to a gray level of the video signal.

Abstract: The present invention is an active matrix electrochromic display architecture where the active components are placed on the backplane of the display, thereby maximizing the viewable pixel area. The cathode of the electrochromic pixel is placed on top of the active components, with respect to the viewer, thereby allowing the active components to be as large as desired while not interfering with the viewable area of the pixel.

Abstract: The present invention aims to provide a PDP apparatus, where a sustain data pulse is applied to data electrodes during a sustain period, having high display quality,and capable of displaying a dark screen image vividly with high contrast without using an error diffusion method, as well as to provide a method of driving the PDP apparatus. In order to achieve the above object, the method of driving the PDP apparatus according to the present invention, during the sustain period, detects an average luminance of a screen image to be displayed, and sets a voltage waveform of a sustain data pulse to be applied to the data electrodes according to the detected average luminance, thereby modulating a luminance of the screen image.

Abstract: A burning apparatus for burning data stored in a burning machine to a chip includes: a power transforming circuit for providing a working voltage to the chip, a connector for receiving parallel burn data and control signals from the burning machine, and a data transforming circuit for transforming the parallel burn data received from the burning machine into serial data and sending the transformed serial data to the chip. The burning machine, connector, and the data transforming circuit are connected in series, thereby forming a data transfer channel for sending burn data into the chip and sending the burn data back to the burning machine after the burning process.

Abstract: A plasma display apparatus and a driving method thereof are provided. The plasma display apparatus comprises a plasma display panel comprising a scan electrode; and a driver for supplying a voltage of a rising signal with a gradually rising voltage and a voltage of a scan signal of a negative polarity direction, which are supplied to the scan electrode, using one voltage source. The plasma display apparatus comprises a plasma display panel comprising a scan electrode; and a driver for supplying a voltage of a rising signal with a gradually rising voltage, a voltage of a falling signal with a gradually falling voltage, and a voltage of a scan signal of a negative polarity direction, which are supplied to the scan electrode, using one voltage source.

Abstract: A method for driving a flat-type display device which includes a cathode panel having first electrodes and second electrodes and an anode panel, the cathode panel and the anode panel having spacers is provided. The method includes the steps of: in the non-display operation period of the flat-type display device, determining a normalized first current from a first current by non-display-driving the electron emitter areas near the spacers, and determining a normalized second current from a second current by non-display-driving the electron emitter areas which are not near the spacers; and in the actual display operation period of the flat-type display device, setting the driving conditions for the electron emitter areas on the basis of the normalized first current and normalized second current so that the electron emission conditions in the electron emitter areas near the spacers and not near the spacers are substantially the same.

Abstract: Scanning switch means 21 to 2m can connect scanning lines S1 to Sm freely to a first potential or a second potential. Drive switch means 71 to 7n can connect drive lines D1 to Dn freely to a drive current source 70 or an off potential. Control means 8 connects the scanning switch means 21 to 2m sequentially with the first potential to select the scanning lines S1 to Sm sequentially and to control the connected states of the drive switch means 71 to 7n. In accordance with the number of the drive lines D1 to Dn to be connected to the drive current source 70, the control means 8 changes the resistances of the scanning switch means 21 to 2m corresponding to the scanning lines S1 to Sm connected to the second potential to become the unselected state, into at least two stages.

Abstract: An apparatus includes a top plate [245] of a first transparent conductive material, a middle plate [225] of a second transparent conductive material, and a bottom plate [205] of conductive material. At least one upper dielectric layer [240] is disposed between the top plate [245] and the middle plate [225], and at least one lower dielectric layer [215] disposed between the bottom plate [205] and the middle plate [225]. A first electroluminescent layer [235] is disposed between the top plate [245] and the middle plate [225]. The first electroluminescent layer [235] has a first predetermined pattern. A second electroluminescent layer [215] is disposed between the middle plate [225] and the bottom plate [205]. The second electroluminescent layer [215] has a second predetermined pattern. The first electroluminescent layer [235] and the second electroluminescent layer [215] are powered by at least one alternating current (AC) power source to selectively display a simulated motion.

Abstract: An OLED (organic light-emitting diode) passive-matrix display includes a display portion and a driver portion. The display portion includes a matrix of OLEDs for displaying information. The driver portion includes a monitor circuit and a voltage adjusting circuit. The voltage adjusting circuit has a power-up portion that generates a supply voltage based on a reference voltage. In response to an indication to switch modes, the voltage adjusting circuit switches to an operational mode wherein the supply voltage is generated based on the maximum voltage drop read across the OLEDs.

Abstract: The organic EL display device includes first and second sets of stripe electrodes; third and fourth sets of stripe electrodes crossing the stripe electrodes of the first and second sets; and pixels, each including a light emitting section, one of the electrodes of which is connected electrically to the stripe electrode of the first set, a transistor element connected electrically to the stripe electrode of the fourth set and to the other electrode of the light emitting section, the transistor element controlling the current flowing through the light emitting section, a first rectifying element connected to the gate electrode of the transistor element and the stripe electrode of the second set, a second rectifying element connected to the gate electrode of the transistor element and the stripe electrode of the third set, and a capacitor connected to the gate electrode of the transistor element and the stripe electrode of the fourth set.

Abstract: An electronic display apparatus includes a substrate, pixels and light sensing parts. The substrate includes a display region and a peripheral region adjacent the display region, and the substrate includes a plurality of gate lines extended in a first direction and a plurality of data lines extended in a second direction that is substantially perpendicular to the first direction. The pixels defined by each of the data and gate lines are formed in the display region to display an image. The light sensing part is formed in the peripheral region, and the light sensing part senses an intensity of an ambient light. The light sensing part that senses an intensity of an ambient light is formed on the array substrate, so that a luminance of the display apparatus may be adjusted in accordance with the intensity of the ambient light.

Abstract: A low power LED based marquee is described. The LEDs are powered by 3.3 VDC.

Abstract: Disclosed herein is a color LED driver, which is capable of being implemented by a compact structure without a feedback structure and accompanying a small size and low cost, by directly connecting a negative temperature coefficient (NTC) thermistor to a driving current path of a color LED applied to an LCD backlight to compensate a characteristic variation of the LED due to a variation in a temperature.

Abstract: The invention relates to a system for pre-adjusting the video image adjustment parameters of a flat screen device for displaying images, consisting of a screen and electronic control circuits which transmit video signals to it and a reticle generator. According to the present invention, the device further includes acquisition means for acquiring the video signals, means for calculating values of the adjustment parameters and adjustment means for storing the values of the adjustment parameters in the electronic control circuits.

Abstract: A display system includes a display panel, a timing controller, a plurality of source drivers and an EDDS interface. The control signals, the clock signals and the setting signals generated by the timing controller are embedded as protocols into the data signals. The embedded signals are then transmitted from the timing controller to each source driver via a corresponding pair of differential data lines of the EDDS interface. The decoders of the source drivers can then decode the embedded signals for generating corresponding driving signals for the display panel.

Abstract: An electro-optical device comprising an image signal line that supplies an image signal to a sampling circuit, the image signal line extending from an image signal terminal, bypassing a data line driving circuit, and reaching the sampling circuit. The image signal line has a first straight line portion extending in one direction, a second straight line portion extending in another direction, and an intermediate wiring portion connecting the first straight line portion and the second straight line portion. An angle of a corner formed between the first straight line portion, the second straight line portion, and the intermediate wiring portion is an obtuse angle. The intermediate wiring portion is wired to pass around a vertical conduction terminal. Detailed information on various example embodiments of the inventions are provided in the Description of Exemplary Embodiments below, and the inventions are defined by the appended claims.

Abstract: A device is provided for setting a voltage applied to each of data signal lines so as to correct a voltage, applied to the pixel, which corresponds to a gradation data signal in each of sub-frames of a single frame. As such, voltage drop, caused by a combination of voltages of the gradation data signal in each of the sub-frames, may be partially or even fully compensated. On this account, it is possible to provide a liquid crystal display device which can lessen or even avoid an influence of the voltage drop caused by, for example, gate-drain capacitance of the thin film transistor in case of adopting time-division driving, and/or a method for driving the liquid crystal display device.

Abstract: Display bright in contrast can be obtained without discrination and flicker in the display device of the direct vision type whose pixel pitches are short to 20 ?m or less. A liquid crystal panel is driven through the frame inverse driving method, and the vertical frame frequency is set to 120 Hz or more. Also, each of the pixels is arranged to correspond to one of R, G and B of color filters disposed on a TFT substrate side.

Abstract: Methods for controlling display panels, in which the display panel comprises a plurality of pixels and wherein each of the plurality of pixels comprises a plurality of sub-pixels, are provided. A representative the method comprises: controlling a timing sequence for turning on the pixels such that at least one of: an average influence of coupling of each of the sub-pixels in two sequential time frames is the same; and an average influence of coupling of two of the sub-pixels on two adjacent rows of the sub-pixels is the same.

Abstract: A display apparatus and a manufacturing method thereof which allow a component to be replaced and repaired simply, rapidly, and stably are provided. The display apparatus comprises a main body which accommodates a light source part, and comprises a display element which displays an image using light emitted from the light source part; an element panel which accommodates the display element; a front cover which is coupled to the main body and provided with a panel mounting part to which the element panel is detachably coupled; and an element driving board which is coupled to the front cover, is opposite to the main body, interposes the front cover between the element driving board and the main body, and is electrically connected with the display element.

Abstract: The present invention provides a gamma curve compensating device and method using the same. The gamma curve compensating device includes an amplifier module, a signal corrector, and an attenuating unit. The amplifier module receives and amplifies a signal, and couples to a first impedance element and a second impedance element. The signal corrector includes a third impedance element which serially connects to a first transistor and couples to the amplifier module. When the voltage difference between an output terminal of the amplifier module and a control terminal of the first transistor is larger than a startup voltage of the first transistor, the signal corrector changes the signal output by the amplifier module and generates a compensated video signal. The attenuating unit connects with the output terminal of the amplifier module to attenuate the signal at the output terminal of the amplifier module, thereby outputting the gamma compensated video signal.

Abstract: A driving apparatus for a display device and display device having the driving apparatus. The display device has a plurality of pixels each having a switching element. The driving apparatus includes a gate line connected to the switching element, a gate driver to apply a gate signal having first to third voltages to the gate line, a first voltage generator to generate the first and third voltages, and a second voltage generator to generate the second voltage. The first and second voltages turn on the switching element, and the third voltage turns off the switching element. The second voltage is less than the first voltage. Thus, since the gate driver includes the second voltage generator to generate the second voltage and a plurality of transistors, and generates a gate output having a step shape, a kickback voltage is reduced and flicker is prevented.

Abstract: A liquid crystal display driver is configured so that an external power supply is provided in an area separate from an internal power supply, which is connected to the driver to supply current at a voltage in the range between voltages V1 and V4. Switch signals are supplied from a switching control signal generator to a drive switcher at predetermined periodic intervals. A voltage is appropriately selected from the voltages of internal and external drives by switching between internal and external switchers. In this way, either one of the internal and external power supplies is selected, and the selected power supply is allowed to apply the corresponding voltages to the display loads.

Abstract: A liquid crystal display is provided, which includes: a liquid crystal panel including a gate line, a data line, and a pixel including a switching element connected to the gate line and the data line; a gate driver applying a gate signal for controlling the switching element to the gate line; and a data driver selecting gray voltages corresponding to gray signals and applying the selected gray voltages to the data line. The gate signal includes a gate-on voltage for turning on the switching element and a gate-off voltage for turning off the switching element. The gray voltages include pairs of positive and negative voltages (V+, V?) and V + + V - 2 = Vconst for each gray, where Vconst indicates a predetermined level.

Abstract: A display controller (40), comprising: a processor (62) for providing row selection pulses (52, 54, 56) for a display comprising M rows of pixels, the row selection pulses (52, 54, 56) having respective durations (t1, t2, t3 . . . tM) that increase from the pulse (52) for row 1 to the pulse (56) for row M. The processor (62) may retime image data (72) for synchronisation with the increase in the pulse duration, for example by writing incoming data (72) in to a buffer (64) at the rate the incoming data (72) is received and reading the data out from the buffer (64) at a rate corresponding to the increase in the pulse duration. Also described is a display device comprising the display controller (40), and a method of driving the display device using the display controller (40). The increase in row selection pulse duration (t1, t2, t3 . . . tM) is arranged to correspond, with a desired level of precision, to an increasing charging time of the pixels of the rows.

Abstract: A flat display structure including a substrate, a pixel matrix, a driving circuit and several voltage adapting devices and driving method thereof are provided. Each of voltage adapting devices includes an input terminal, a first control terminal and an output terminal. The input terminal is electrically connected to the i-th gate line Gi corresponding to the i-th pixel row Ri. The first control terminal is adapted to receive a first control signal. The output terminal is adapted to receive a working voltage.

Abstract: In a picture display device, a picture having high gradation is obtained by using an alternating method which can deal with a video signal having a high frequency band region. On the basis of an input signal, a signal processing circuit outputs a pair of analog video signals (a signal reversal frequency is one frame), which have inversion relationships with each other, to a signal line drive circuit, and the signal line drive circuit applies one of the inputted pair of video signals to an odd signal line, and applies the other of the video signals to an even signal line, so that source line reversal drive is carried out.

Abstract: A plasma display panel includes first display electrodes and second display electrodes positioned inside barriers while opposing each other. A front panel has closed-type barriers to increase fluorescent substance application area. A rear panel has stripe-type barriers to lower address voltage between the first display electrodes and address electrodes and improve emission efficiency by means of long-gap discharge. The plasma display panel uses trigger discharge during address discharge and sustain discharge to lower discharge voltage.

Abstract: A method for driving a liquid crystal display panel. A turn-on signal is provided to first gate electrodes in sequence by a first direction and provided to second gate electrodes in sequence by a second direction opposite to the first direction during a frame. A data signal is provided to the data electrodes corresponding to the first gate electrodes and the second gate electrodes while providing the turn-on signal to the first gate electrodes and the second gate electrodes corresponding to the data electrode.

Abstract: A digital-analog converter (DAC) including: a gray scale generator having a plurality of switches for generating desired gray scale voltages through charge sharing between at least two data lines; a switching signal generator for providing operation control signals for the plurality of switches of the gray scale generator; and a reference voltage generator for generating reference voltages and for providing the reference voltages to the gray scale generator. In one embodiment, the charge sharing used by the DAC is executed by a holding capacitor and a sampling capacitor, and the holding capacitor and the sampling capacitor are formed using respective parasitic capacitance components existing in the at least two data lines, thereby reducing area and power consumption over an existing R-string type of DAC.

Abstract: A driving device for a display device includes a gray voltage generator generating a plurality of gray voltages, a voltage selector selecting an output voltage from the plurality of gray voltages, a voltage level converter converting a level of the output voltage selected by the voltage selector and applying the output voltage with a converted level to data lines, a first switching unit connecting the voltage level converter to the voltage selector and the data lines, and a second switching unit directly connecting the voltage selector and the data lines. Operating times of the first and second switching units are different. Accordingly, when a data voltage is charged in or discharged from a data line, since a separate discharging transistor or a separate discharging amplifier is not used, power consumption and an area of a data driver are reduced.

Abstract: A display includes a display area where the pixels are arranged in a first sub-matrix and a second sub-matrix positioned adjacent to each other. The sub-matrices have respective individual gate drivers and a common source driver. Each column of pixels in the first sub-matrix is interconnected with a corresponding column of pixels in the second sub-matrix, and the source lines share a single date output of the common source driver.

Abstract: A shift register circuit includes plural stages of signal holding circuits which are cascade-connected to hold a signal based on a supplied input signal, to output an output signal based on the held signal, and to supply the output signal as an input signal to a subsequent stage. Each of the plural stages of signal holding circuits includes an output circuit which is supplied with two types of clock signals consisting of a first clock signal and a second clock signal. A timing of the second clock signal is delayed by a predetermined delay time with respect to a timing of applying the input signal, which is supplied with a signal at a timing delayed by the delay time of the second clock signal from the timing of applying the input signal, and which outputs the output signal at a timing responsive to the first clock signal.

Abstract: The invention provides a light source driving circuit that can enhance a power supply efficiency while permitting reductions in the size and the noise of the power supply, and also provides a lighting apparatus, a display apparatus, a field-sequential-color liquid crystal display apparatus, and an information appliance that use such a light source driving circuit. The light source driving circuit includes a power supply section, a light source section, a charging section for storing an electric charge provided from the power supply section; a switching section for connecting the charging section to the power supply section or to the light source section, and a control section for controlling the switching section so as to connect the charging section to the power supply section, thereby charging the charging section, and so as to disconnect the charging section from the power supply section and connect the charging section to the light source section, thereby causing the light source section to emit light.

Abstract: The present invention provides an improved power supply circuit for a backlight control of the LCD panel, capable of initiating a plurality of CCFL. The electrical lighting device comprises an switching electronic ballast circuit, a CCFL abnormal detective circuit, an impedance matching device at positive end of balancing current, an adjusting and enabling control device and an auxiliary power source circuit. The circuit of the electrical lighting device is designed to protect the circuit from abnormal conditions such as short-circuit occurred on a seal cover. The impedance matching device at positive end is provided in between negative ends of some cold cathode fluorescence lamps and an anode of secondary winding of the transformer to balance the CCFL current. Detective units and signals are provided to detect anode voltage in order to determine abnormality in the circuit.

Abstract: A light control circuit that makes it possible to, when the light intensity of the area surrounding a display screen varies in a relatively short time, prevent the brightness of a backlight from being erroneously adjusted as the result of the variation being detected is provided. The light control circuit controls the backlight of a display panel. This light control circuit is provided with functions of performing the following operation: detection signals from multiple optical sensors are taken into a common sampling means in a time division manner to acquire multiple sampling values temporally dispersed; a surrounding light intensity is determined by majority decision based on the multiple sampling values, and the result of determination is externally outputted.

Abstract: The present invention provides an image processing method for a display device. The method includes: calculating an average brightness of an image; adjusting the average brightness to generate an adjusted average brightness; utilizing Brightness Preserving Bi-Histogram Equalization (BBHE) and the adjusted average brightness to process the image; and displaying the image.

Abstract: A thin film transistor array panel is disclosed. The thin film transistor array panel includes a gate line formed on a substrate, a gate insulating layer formed on the gate line, a semiconductor layer formed on the gate insulating layer, a data line and a drain electrode formed on the semiconductor layer, a passivation layer formed on the data line and the drain electrode and including a contact hole, and a pixel electrode formed on the passivation layer and connected to the drain electrode through the contact hole. The data line intersects the pixel electrode, and the pixel electrode includes an opening corresponding to a portion of the data line. The opening has a horizontal width that is wider or narrower than the horizontal width of the data line. Thereby, parasitic capacitance that occurs between the data line and the pixel electrode is reduced to improve image quality.

Abstract: In an information display device, in which display media (particles or liquid powders) are sealed between opposed substrates, at least one substrate being transparent, and, in which the display media (particles or liquid powders), to which an electrostatic field is applied, are made to move so as to display information such as an image, spacers are arranged on a surface of at least one substrate in a sealing agent arranging portion, which seals a space between at least one flexible substrate and the other substrate by a sealing agent. Hereby, providing the information display device, in which an adequate gap endurable to a high-voltage application can be ensured, and a breakage of an information display panel can be suitably prevented.

Abstract: A cut filter is used in a backlight module or a display device and positioned over the light source to filter off a part of the light comprising an overlap of at least two of the red light, the green light, and the blue light. By filtering off the overlapping part of light emitted from the light source to obtain a purer primary color light, the display device equipped with a conventional color filter can attain an improved color gamut.

Abstract: A driving device of an electrophoretic display panel having a common electrode and a plurality of divided electrodes disposed opposite to the common electrode includes: a first driving circuit that outputs a plurality of voltages corresponding to a plurality of voltage data supplied as a series of data and supplies the plurality of voltages to the plurality of divided electrodes; and a second driving circuit that outputs a voltage corresponding to supplied data and supplies the voltage to the common electrode.

Abstract: The present invention is a sensor for installation within a handheld device, such as a portable media player or a mobile phone, that turns on illumination of controls for the device (graphical user interface, buttons, etc.) while the device is being gripped by a user, and turns off control illumination when the device leaves the hand of the user.

Abstract: A handheld electronic device having an auxiliary reading system for helping the user clearly understand what reading procedure is proceeding and make notes by themselves is provided. The auxiliary reading system of the handheld electronic device comprises a text generating program executed to perform a text decoration operation for successively generating text decorations when the user reads document files from the handheld electronic device. The text decorations are effective for guiding the user to read the document files and make notes.

Abstract: An intuitive display controller on a portable electronic device is provided. The intuitive display controller includes a motion sensor and a processor coupled with the motion sensor. The motion sensor is for detecting at least one acceleration parameter of the electronic device. The processor generates at least one displacement parameter of the portable electronic device by processing the acceleration parameter and adjusts a display page of the portable electronic device according to the displacement parameter.

Abstract: A screen scroll apparatus of a portable device includes: a sensor unit which senses and outputs 2-dimensional coordinate values of at least one position related to the portable device; a display unit; a memory storing contents with a resolution higher than that of the screen that can be displayed; and a control unit which scrolls the screen based on the 2-dimensional coordinate values if the 2-dimensional coordinate values change when contents are read from the memory and provided to the display unit. A screen scroll method includes: if a resolution of contents displayed on the portable device is higher than a resolution of a screen that can be displayed, monitoring 2-dimensional coordinate values of at least one position related to the portable device output from the sensor unit; and if the 2-dimensional coordinate values change, scrolling a screen displayed on the portable device based on the 2-dimensional coordinate values.

Abstract: An idle mode screen image presentation apparatus and method is provided for a mobile phone. A screen image presentation apparatus for a mobile phone according to the present invention includes a memory storing a character house including a background and function items for executing functions of the mobile phone; a controller presenting the character house in an idle mode of the mobile phone and providing information, when one of the function items is selected, on a function associated with the selected function item; and a display displaying the character house under the control of the controller.

Abstract: A display device for a vehicle includes a display LCD and a control LCD, which has transmission switching portions, each of which has three segment units. When the vehicle is running, left-side two-third segment units of each transmission switching portion are set to a non-transparent state in a portion of the control LCD corresponding to the left half screen of the display LCD. In contrast, in a portion of the control LCD corresponding to the right half screen of the display LCD, all the segment units are set to a transparent state. Thus, an image in the right half screen is visible from a driver seat, while an image in the left half screen is not visible from the driver seat. Both the images in the right half screen and the left half screen are visible from a front passenger seat.