Abstract: The present invention is related to a high efficiency electronic display device comprising a plurality of EPDs and a plurality of LEDs, [especially to a like electronic paper display equipment made by EPD and the adding cooperation for LED]. Therefore, the device is capable of display information by means of EPD in the daytime and LED light while not having enough light.

Abstract: A terminal and method of controlling the same are disclosed, by which user's convenience for photography using a terminal can be further enhanced. The terminal includes a camera, a display, a user input having a camera shutter key, and a controller for controlling at least one of more menu icons displayed in a standby mode to be displayed by being overlapped with a camera preview image. A see-through image seen through a transparent display can become a camera preview image.

Abstract: The exemplary embodiment relates to a liquid crystal display device.

Abstract: Backlit LCD displays are becoming commonplace within many vehicle applications. The unique advantage of this invention is that it optimizes system power savings for display of low dynamic range (LDR) images by dynamically controlling spatially adjustable backlighting. This is accomplishes through use of a control technique that takes into account the sequential nature of the video display process.

Abstract: An active-matrix display device employs current-programmed-type pixel circuits and performs the writing data to each of pixels on a line-by-line basis. The active-matrix display device having a matrix of current-programmed-type pixel circuits includes a data line driving circuit 15 formed of m current driving circuits (CD) 15-1 to 15-m arranged corresponding to respective data lines 13-1 to 13-m. The data line driving circuit (CD) 15-1 to 15-m holds image data (luminance data herein) in the form of voltage, and then converts the voltage of the image data into a current signal. The current signal is then fed to the data lines 13-1 to 13-m at a time. The image information is thus written on the pixel circuits 11.

Abstract: Discrete flexible pixel assemblies can be hermetically sealed from the environment and can comprise unitary, self-contained replaceable modules which enable efficient, economical production of large scale, free-form electronic displays, signs and lighting effects for outdoor use. The method and means for producing hermetically sealed discrete flexible pixel assemblies can include encapsulation means, exterior encasement means, and cable connector means.

Abstract: A timing controller includes a controller that controls an operation timing of a controlled unit, and a setting unit that associates a timing obtained by dividing a setting of the operation timing into a plurality of timings, each timing having an identification number, and sets the control unit so that an offset period based on the associated timing is added to the operation timing of the controlled unit.

Abstract: An image displaying apparatus, which is excellent in heat radiation efficiency and has an excellent back design, includes a display panel for displaying an image; a heat generating member provided on a back side of the display panel; and a cabinet for covering the display panel and the heat generating member at least from the back side of the display panel. In the cabinet, an aperture is provided at a position facing the heat generating member, and an opening/closing unit enables switching between closing and opening of the aperture. In a state that the aperture is opened by the opening/closing unit and one part of a heat-transfer member is positioned on a side of the cabinet opposite to the display panel, the other part of the heat-transfer member extends through the aperture so that the heat-transfer member can thermally be connected to the heat generating member.

Abstract: An organic light emitting diode display device and the driving method thereof that is adaptive for increasing display quality. The organic light emitting diode display device according to an embodiment includes a display panel where pixels having an organic light emitting diode device are arranged in a matrix type and a data driver that supplies a data voltage and an inverted voltage to the pixels, where the inverted voltage is symmetric to the data voltage relative to a reference voltage.

Abstract: The present invention provides a method of manufacturing an electronic apparatus, such as a lighting device having light emitting diodes (LEDs) or a power generating device having photovoltaic diodes. The exemplary method includes forming at least one first conductor coupled to a base; coupling a plurality of substantially spherical substrate particles to the at least one first conductor; converting the substrate particles into a plurality of substantially spherical diodes; forming at least one second conductor coupled to the substantially spherical diodes; and depositing or attaching a plurality of substantially spherical lenses suspended in a first polymer. The lenses and the suspending polymer have different indices of refraction. In some embodiments, the lenses and diodes have a ratio of mean diameters or lengths between about 10:1 and 2:1. In various embodiments, the forming, coupling and converting steps are performed by or through a printing process.

Abstract: The present invention provides a method of manufacturing an electronic apparatus, such as a lighting device having light emitting diodes (LEDs) or a power generating device having photovoltaic diodes. The exemplary method includes forming at least one first conductor coupled to a base; coupling a plurality of substrate particles to the at least one first conductor; converting the plurality of substrate particles into a plurality of diodes; forming at least one second conductor coupled to the plurality of spherical diodes; and depositing or attaching a plurality of substantially spherical lenses suspended in a first polymer, with the lenses and the suspending polymer having different indices of refraction. In some embodiments, the lenses and diodes have a ratio of mean diameters or lengths between about 10:1 and 2:1. In various embodiments, the forming, coupling and converting steps are performed by or through a printing process.

Abstract: In a sound source localization system using a light emitting device for visualizing sound information, including: a light emitting device (40) including a microphone for receiving sound from a sound source (1, 2) and a light emitting means for emitting light based on the sound from the microphone; a generating section for generating light emitting information for the light emitting device (40); and a sound source localization section (60) for determining a position of the sound source based on the light emitting information from the generating section.

Abstract: An audio power display provides a signal and an update rate. An audio power monitoring system comprises a digital display unit including at least one light-emitting display element and a rapid update rate. The digital display unit displays signal levels at the rapid update rate to emphasize the dynamic nature of music. In one embodiment, the display update rate is varied to increase proportionally to increases in signal level, and decrease proportionally to decreases in signal level to further represent the dynamic nature of music.

Abstract: A display system, a method of constructing a display system, and a method of displaying an image are provided. In one embodiment, a display system includes a support structure having a plurality of attachment members and a plurality of tiles. Each of the plurality of tiles is attached to a corresponding attachment member of the plurality of attachment members. The support structure is configured to structurally support each of the plurality of tiles, and at least one of the plurality of tiles includes at least one connection configured to removably connect and align the at least one of the plurality of tiles with another one of the plurality of tiles.

Abstract: A voltage equal to the threshold value of a TFT (106) is held in capacitor unit (109). When a video signal is inputted from a source signal line, the voltage held in the capacitor unit is added thereto and a resultant signal is applied to a gate electrode of the TFT (106). Even when a threshold value is varied for each pixel, each threshold value is held in the capacitor unit (109) for each pixel. Thus, the influence of a variation in threshold value can be eliminated. Further, holding of the threshold value is conducted by only the capacitor unit (109) and a charge does not move at writing of a video signal so that a voltage between both electrodes is not changed. Thus, it is not influenced by a variation in capacitance value.

Abstract: A portable communication device includes a status indictor in the form of a single multicolor generating LED. The single LED indicates radio channel and battery status. The LED is responsive to a menu button press to indicate a current channel by color. Channel change is indicated by changing to another color. The LED is also responsive to a power button on the portable communication device to generate predetermined colors associated with battery status. The use of a single LED eliminates the need for knobs or a display as part of the status indicator of the portable communication device.

Abstract: A louver panel for an electronic sign incorporating multiple spaced primary and secondary louvers extending outwardly from a configured substantially planar panel to provide direct shading of the structure adjacent to an LED, to the structure of the louver panel including the louvers and the panel, and to provide shading for all or part of an LED. Spacings of the louvers provide for regions of shade which improve contrast and which in transition between panels camouflage horizontal seams.

Abstract: An embodiment of this document provides an organic light emitting diode (OLED) display is provided. The OLED display includes a panel, a driving unit, and a sense unit. The panel includes subpixels, disposed on a first substrate, and electrode patterns disposed on one side of a second substrate. The first substrate and the second substrate are attached to each other, and the electrode patterns are disposed on a side of the second substrate that is facing the first substrate. The driving unit is coupled to the subpixels and configured to supply a scan signal and a data signal to the subpixels. The sense unit is coupled to the electrode patterns and configured to detect a position based on a change in the capacitance formed in the electrode patterns when a user touches the panel.

Abstract: An organic light emitting diode display including a display panel having a plurality of data lines, a plurality of gate lines, and a plurality of pixels, a data drive circuit that converts input digital video data into data voltage with reference to gamma reference voltages and supplies the data voltage to the data lines, a gamma reference voltage generation circuit that generates the gamma reference voltages by dividing a high potential gamma power; and a gamma power adjusting circuit that adjusts display luminance by extracting a number of white pixels from the input digital video data and adjusting the output level of the high potential gamma power depending on the number of white pixels.

Abstract: In a pixel circuit 100, a driving TFT 110, a switching TFT 115, and an organic EL element 130 are provided between a power supply wiring line Vp and a common cathode Vcom and a capacitor 120 and a switching TFT 111 are provided between a gate terminal of the driving TFT 110 and a data line Sj. A switching TFT 112 is provided between a connection point B between the capacitor 120 and the switching TFT 111 and the power supply wiring line Vp, a switching TFT 113 is provided between the gate and drain terminals of the driving TFT 110, and a switching TFT 114 is provided between the gate terminal of the driving TFT 110 and a reference supply wiring line Vs. A potential that brings the driving TFT 110 into a conduction state is applied to the reference supply wiring line Vs. Thus, variations in the threshold voltage of a drive element can be properly compensated for and unwanted light emission from an electro-optical element can be prevented.

Abstract: A projector includes: light emitting devices provided in correspondence with pixels that form an image displayed on an illuminated surface, each of the light emitting devices emitting light modulated in accordance with an image signal; and shaping optical elements provided in correspondence with the light emitting devices, each of the shaping optical elements shaping the region illuminated with the light emitted from the corresponding light emitting device, wherein the shaping optical elements form a shaped light region in a position on the light path between the shaping optical elements and the illuminated surface.

Abstract: A backlight assembly includes a receiving container, a plurality of light-emitting modules, a driving unit and a side mold. The receiving container includes a bottom plate and a side part formed on a peripheral edge portion of the bottom plate. Light-emitting modules of the plurality of light-emitting modules are disposed in the receiving container. The light-emitting modules include a light-emitting base board and a plurality of light-emitting diodes (“LEDs”) disposed on a first side of the light-emitting base board. The driving unit is disposed in the receiving container proximate to a lower portion of the peripheral edge portion of the bottom plate. The driving unit is electrically connected to the light-emitting modules to control an operation of the plurality of LEDs. The side mold is disposed on the lower portion of the peripheral edge portion of the bottom plate and covers the driving unit.

Abstract: Methods of calibrating a lighting panel including a plurality of segments, each of said segments configured to emit a first color light and a second color light in response to pulse width modulation control signals having respective duty cycles include determining an average segment luminance for the lighting panel, determining a luminance variation of each segment to the average segment luminance, comparing the luminance variation of each segment to a threshold, and adjusting the duty cycle of at least one color of at least one segment to reduce the luminance variation in response to the luminance variation of a segment exceeding the threshold. Calibration systems are also disclosed.

Abstract: A liquid crystal display device includes pixels having a plurality of subpixels. The pixels include data displaying subpixels having a first pixel electrode receiving red, green, and blue data voltages to display an image, and a common electrode to which a common voltage is applied. The pixels further a viewing angle controlling subpixel driven in response to a voltage applied to the common electrode, a side electrode separated from the common electrode, and a second pixel electrode. Each of the subpixels includes a rib distorting an electric field applied to the corresponding liquid crystal layer. The viewing angle controlling subpixel delays a phase of the light from the data displaying subpixels when a voltage having a voltage difference from the common voltage is applied to the side electrode during a narrow viewing angle mode of the liquid crystal display device.

Abstract: Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.

Abstract: A disappearing interface system for a device, such as an appliance (e.g., a cooking range) having an interactive user interface, a light-emitting device (e.g., a LED), a microprocessor based LED fader electronic control system that uses a PWM signal to drive an A/D circuit to control the intensity (e.g., fade in/out) of the light-emitting device.

Abstract: An LED lamp driven by alternating current includes at least a first constant-current supplying device, at least a second constant-current supplying device and at least an LED load. A terminal of the first constant-current supplying device is connected to the first connecting terminal of the AC power source. A terminal of the second constant-current supplying device is connected to the second connecting terminal of the AC power source. The LED load is connected between the first constant-current supplying device and the second constant-current supplying device in series. Through the current limiting function of the first constant-current supplying device and the second constant-current supplying device, the LED lamp may be protected.

Abstract: An organic light emitting display including pixels, each including an organic light emitting diode and a pixel circuit for controlling a supply of an electric current to the organic light emitting diode; and a sensing unit for converting a voltage applied to the organic light emitting diode to a digital value during a sensing period during a sampling period, and for sinking a second current from the pixel corresponding to the digital value to compensate a degradation of the organic light emitting diode during a sampling period.

Abstract: The present invention is a robust LED display module for use in an electronic sign which display module includes a metallic housing, a heat conductive interface panel, an LED circuit board and LEDs, and a metallic mask arranged in intimate contact and association therewith, and which components operate synergistically in concert with each other in order to evenly distribute, reduce and dissipate heat along, about and within the structure of the present invention. Display uniformity is provided by the use of major metallic structures in order to prevent warpage and to protect the geometric integrity of the LED display module.

Abstract: An electronic device includes a plurality of first wiring lines, a plurality of second wiring lines that intersect the plurality of first wiring lines, a plurality of unit circuits that are disposed so as to correspond to intersections between the plurality of first wiring lines and the plurality of second wiring lines, and a plurality of reference signal lines that supply reference signals to the plurality of unit circuits.

Abstract: A light guiding plate is provided on the obverse side of a display for displaying a display image while varying the display image. Unevenness is formed at a predetermined position at a reverse surface of the light guiding plate. A light emitting element is disposed at the side surface of the light guiding plate in such a manner as to introduce the light to the light guiding plate. Alternatively, an uneven portion in conformity with a pattern of a desired display image may be formed at a reverse surface of the light guiding plate, and a light emitting element is disposed at the side surface of the light guiding plate in such a manner as to introduce the light to the light guiding plate.

Abstract: A laser light source device which is used for a video display device displaying video by using plural image frame data inputted from an image generating device includes a laser light source emitting laser light, a drive circuit driving the laser light source, a target light amount acquisition unit that acquires a target light amount which is a light amount necessary for displaying the image frame data, an output light amount detecting unit that detects an output light amount of the laser light source device, a control unit that controls the drive circuit so that the output light amount will be the target light amount, and a determination unit that determinates deterioration of the laser light source by using drive conditions of the drive circuit with respect to at least two different target light amounts at the time of control.

Abstract: A voltage equal to the threshold value of a TFT (106) is held in capacitor unit (109). When a video signal is inputted from a source signal line, the voltage held in the capacitor unit is added thereto and a resultant signal is applied to a gate electrode of the TFT (106). Even when a threshold value is varied for each pixel, each threshold value is held in the capacitor unit (109) for each pixel. Thus, the influence of a variation in threshold value can be eliminated. Further, holding of the threshold value is conducted by only the capacitor unit (109) and a charge does not move at writing of a video signal so that a voltage between both electrodes is not changed. Thus, it is not influenced by a variation in capacitance value.

Abstract: A display that includes energy sensors within the display itself is disclosed. An Organic Light Emitting Diode (OLED) can be made to operate both as a light emitter and as an energy detector. When forward biased with an appropriate driving signal, the OLED emits light via electroluminescence, which can be used to make a portion of an image on the display. In another mode, the OLED can detect energy by converting incoming photons or energy into an electrical signal by the photoelectric effect. By operating OLEDs in the display in both emissive and sensing modes, energy that shines on the display, such as from an outside source can be detected at the same time an image is shown. Additionally, a display including OLEDs can detect light energy generated by the display itself.

Abstract: A display device for displaying an image on a light emitting display, includes addition means for adding a rim to an icon, superimpose means for superimposing the rimmed icon on the image, change means for changing a ratio of superimpose between the icon and the image, and display control means for controlling displaying the image superimposed with the rimmed icon on the display, wherein the icon is superimposed on the image in a semi-transparent manner.

Abstract: It is a problem to provide a light-emitting device capable of obtaining a constant brightness without being affected by deterioration in an organic light-emitting layer or temperature change, and of making desired color display. The lowering in OLED brightness due to deterioration is reduced by causing the OLED to emit light while keeping constant the current flowing through the OLED instead of causing the OLED to emit light while keeping constant the OLED drive voltage. Namely, OLED brightness is controlled not by voltage but by current thereby preventing against the change in OLED brightness due to deterioration of OLED. Specifically, the drain current Id of a transistor for supplying a current to the OLED is controlled in a signal line drive circuit thereby keeping constant the drain current Id without relying upon the value of a load resistance.

Abstract: A data driving circuit including n channels, where n is an integer, the data driving circuit including a shift register unit receiving data during a first input period and a second input period, the shift register unit shifting and outputting the received data, a first latch unit receiving the data input during the first input period from the shift register unit, and simultaneously or substantially simultaneously outputting the data corresponding to the first input period, and a second latch unit receiving the data input during the second input period from the shift register unit, and simultaneously or substantially simultaneously outputting the data corresponding to the second input period.

Abstract: An electro-luminescence display device including red, green and blue reference gamma generators each having three digital analog converters or more in order to generate a reference gamma voltage of low gray level and a reference gamma voltage of high gray level, and at least one integrated circuit to generate a data signal in use of the reference gamma voltage of low gray level and the reference gamma voltage of high gray level. Each reference gamma generator includes a first digital analog converter to divide a voltage supplied to itself in order to generate i numbers of voltage levels, a second digital analog converter to divide a voltage supplied to itself in order to generate j numbers of voltage levels, and a third digital analog converter to receive two voltage levels from the second digital analog converter and to divides the two received voltage levels into j numbers of voltage levels.

Abstract: A backlight unit includes: a power supplying part; a non-dimming point light source receiving power from the power supplying part and providing a feed back signal to the power supplying part; a dimming control part outputting a dimming signal; and a plurality of dimming point light sources receiving power from the power supplying part, and receiving the dimming signal from the dimming control part.

Abstract: Described herein is a transparent-display device for motor vehicles, to be used for presentation of information to the driver and/or to the passengers, said device comprising a plurality of LED sources, addressable individually or in groups through a series of conductive paths, deposited on a transparent underlayer and connected to a control electronics, in which: i) said LED sources are integrated in the form of dice, i.e., of elements obtained by dividing up a semiconductor wafer and without package; ii) said dice are integrated on, and electrically connected to, said underlayer via technologies of the chip-on-board type; and iii) said transparent underlayer 1 is pre-arranged for being at least in part superimposed on the windscreen of the vehicle, in such a way that at least part of the information presented to the user is superimposed on the background, said background being visible to the user through said windscreen.

Abstract: A display device and a driving method thereof are provided. The display device comprises a plurality of pixels, each pixel includes: a light emitting element; a storage capacitor; a driving transistor that has a control terminal, an input terminal, and an output terminal and supplies a current to the light emitting element to emit light; a first switching transistor for supplying a data voltage to the storage capacitor in response to a scanning signal; a second switching transistor for diode-connecting the driving transistor in response to a previous scanning signal; and a third switching transistor for supplying a driving voltage to the driving transistor in response to an emission signal, wherein the storage capacitor stores a control voltage depending on a threshold voltage of the driving transistor and a threshold voltage of the light emitting element through the diode-connected driving transistor, and transmits the control voltage and the data voltage to the control terminal of the driving transistor.

Abstract: A method according to one embodiment may include supplying power to an LED array having at least a first string of LEDs and a second string of LEDs coupled in parallel, each of the strings includes at least two LEDs. The method of this embodiment may also include comparing a first feedback signal from the first string of LEDs and a second feedback signal from the second string of LEDs. The first feedback signal is proportional to current in said first string of LEDs and said second feedback signal is proportional to current in said second string of LEDs. The method of this embodiment may also include controlling a voltage drop of at least the first string of LEDs to adjust the current of the first string of LEDs relative to the second string of LEDs, based on, at least in part, the comparing of the first and second feedback signals. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.

Abstract: According to one embodiment, a projection system includes a color wheel operable to filter light into a passed component and a reflected component. The projection system also includes a digital micromirror device comprising a plurality of micromirrors each operable to receive the passed component and the reflected component. Each micromirror is selectively positionable to direct, at approximately the same time, the passed component and the reflected component to desired locations. The projection system also includes an optical system operable to direct the passed component and the reflected component from the color wheel to the digital micromirror device at approximately the same time.

Abstract: In a multiple-display configuration comprising multiple display devices, the display device on which a display item, such as a mouse cursor, is located, is indicated without obscuring the view of any information being rendered on any display device. In an exemplary configuration, light emitting devices, such as LEDs for example, are located on the periphery of each display device. To indicate that the display item is located on a specific display device, the LEDs associated with that display device are activated.

Abstract: An LED drive circuit of the disclosed subject matter can include an LED unit and a serial circuit connected in parallel therewith. The serial circuit includes a resistor and a positive temperature coefficient resistor having a positive linear temperature coefficient. A voltage across the positive temperature coefficient resistor is fed back to an output control circuit. An output voltage that is PWM-controlled on the basis of a reference voltage set at the output control circuit is used to drive the LED unit.

Abstract: The present invention relates to electroluminescent polymers which contain structural units of the formula (1) and to the use thereof. The polymers according to the invention exhibit improved efficiency and a longer lifetime, in particular on use in polymeric organic light-emitting diodes.

Abstract: Provided are an apparatus and method for driving LEDs. The apparatus comprise a plurality of red, green, and blue light emitting diodes connected, respectively; switching units turned on or off by an inputted pulse to turn on or off the red, green and blue light emitting diodes, respectively; and a control unit outputting respective pulses to sequentially delay a turn-on or turn-off time between the switching units.

Abstract: A luminous display for automotive satellite navigation systems includes a panel equipped with light sources, for example made up of LEDs, arranged in a pre-ordered configuration of discrete segments, which can be combined with one another according to paths corresponding to the representation of a plurality of encoded generally arrow-shaped pictograms, each of which indicates a respective direction to follow indicated by the navigation system. The path to follow is highlighted with respect to possible alternative paths represented by the pictograms.

Abstract: An LED light source for LCD backlighting is described that recalibrates itself over time so that color and brightness uniformity across the backlight is maintained over the life of the backlight. The backlight contains clusters of red, green, and blue LEDs, each cluster generating a white point. In one embodiment, each color in a cluster has its own controllable driver so that the brightness of each color is a cluster is separately controllable. One or more optical sensors are arranged in the backlight, and the sensor signals are detected by processing circuitry to sense the light output of any LEDs that are energized in a single cluster. The measured white point and flux are compared to a stored target white point value and flux for that cluster. The currents to the RGB LEDs are then automatically adjusted to achieve the target level for each cluster. This process is applied to each cluster in sequence until the recalibration is complete.

Abstract: The first and second chips are provided side by side. The first chip includes: a current supply section for outputting a drive current, the current supply section including a current mirror; a current distribution MISFET; a current input MISFET for transmitting an electric current to the current supply section, the current input MISFET being connected to the current distribution MISFET; and a second current distribution MISFET. The current distribution MISFET and the second current distribution MISFET constitute a current mirror. The second chip includes a second current input MISFET which is connected to the second current distribution MISFET. The ratio between the W/L ratio of the current distribution MISFET and the W/L ratio of the current input MISFET connected thereto is the same in the first and second chips.