Abstract: A mobile communication terminal, including an automatic sensitivity improvement intenna, wherein the automatic sensitivity improvement intenna includes: a first intenna whose antenna sensitivity is tuned in an idle state at a free space; and a second intenna for improving sensitivity by checking received signal strength indication when the mobile communication terminal is engaged.

Abstract: An antenna applied to a slide type mobile communication terminal includes a first board mounted in a first body; a second board mounted in a second body; a radiating element mounted to the second body; and a first contact formed to connect to the second board at one end and contact with the first board at the other end when the first body slides. Accordingly, an antenna with directionality can be realized for applications to short range communication systems.

Abstract: A built-in antenna assembly of a wireless communication terminal is provided. A base is mounted on a substrate. A radiator is fixed onto an upper end of the base, and transmits/receives a signal. A terminal is extended along an outer surface of the base from the radiator to contact a contact pad protruded from the substrate. The terminal supplies a power to the radiator when in contact with the contact pad and is grounded. A terminal hooker is disposed on an underside surface of the base corresponding to a free end of the terminal so that the free end is fixed to the base. The invention allows easier and more flexible design for the terminal which is in electrical contact with the substrate of the built-in antenna. Moreover, the invention is universally applicable to various terminal models, and enhances productivity due to simpler configuration and easier assembling structure.

Abstract: An antenna mount comprising a front cylindrical mount, the front cylindrical mount having a threaded interior for installing an antenna; a flanged central portion; a base mount consisting of a hollow cylinder cut away along a longitudinal axis, leaving a half-circular cross section. The antenna mount can be installed by inserting it into an opening in the casing of a device and rotating the antenna mount until it abuts a stop stud.

Abstract: A system and method for automatically positioning an antenna aperture on a mobile platform in a manner to avoid blockages created by other components/subsystems on the mobile platform between the line of sight of the antenna aperture and a satellite and to avoid interference with other systems that share the mobile platform. In one embodiment, one or more linear support elements are moved by one or more corresponding motors to allow the antenna aperture to be re-positioned between a plurality of different positions. Methods for creating and using a blockage database are also disclosed.

Abstract: The present invention relates to a broadband non-resonant antenna device for wireless transmission of information using electromagnetic signals, comprising a metal sheet layer, forming a plane, with a slotline that comprises a first part and a second part. The side of the second part that is the most distant from the first part transcends into a widening open-ended tapered slot in the metal sheet layer. The device additionally comprises a feeding line in the metal sheet layer. The feeding line comprises a feeding part, with a first end and a second end, and gaps separating the feeding part from the surrounding metal sheet layer by a certain distance, where the slotline is intersected by the feeding line.

Abstract: An efficient device for air purification occurring in the presence of activated carbon or its equivalent by decomposing adsorbed impurities, such as volatile organic compounds, on the carbon surface by radiofrequency energy in the microwave range. The device contains an activated carbon bed, or its equivalent, for adsorption of impurities and is regenerated in-place by with radiofrequency energy in the microwave range by usage of one or more slot antennas. An oxygen-free sweep gas removes the impurities. The device is housed in a microwave cavity designed to reflect the microwaves leaving the slot antennas into a center section containing the activated carbon bed.

Abstract: An antenna arrangement for the inductive transmission of energy has magnetic cores made of a composite material with amorphous or nanocrystalline flakes and a moulded plastic material, so that the magnetic properties suitable for effective energy transmission can be adjusted at the same time as high security against fracture and a small overall height are achieved.

Abstract: A dual polarization antenna includes a substantially pyramidal configured substrate having opposing walls. An antenna element is carried at each wall such that opposing pairs of antenna elements define respective antenna dipoles and provide dual polarization.

Abstract: A feed window for a low noise block converter feedhorn incorporated into a microwave-range antenna assembly is formed from a thermoplastic polymer composition containing a hydroscopic-effective amount of a high molecular weight siloxane.

Abstract: An antenna device using an approximate Luneberg lens, wherein high gain and low side-lobe are made compatible. A lens antenna device comprising, combine with each other, a radio wave lens (1) formed of a dielectric satisfying the condition, 0<a?r, where the distance from the front surface of a lens (4) to the focal point of the lens is a, and the radius of the lens r, and a primary radiator (2) having a 10-dB beam width ? wherein A, determined by the expression, A=?/2×(1+2a/r), is at least 40 and up to 80, more preferably at least 50 and up to 70.

Abstract: The present invention relates to a display device. The display device according to the present invention includes a first display panel for displaying an image in a first display direction, a second display panel for displaying an image in a second display direction that is substantially opposite to the first display direction, and a supporting frame for supporting the first display panel and the second display panel. The first display panel and the second display panel are arranged such that an imaginary line orthogonal to a display surface of the first display panel does not pass through the second display panel. The invention allows a multiple-display-panel device, such as a flip-type cellular phone, to be more compact.

Abstract: An image observation system includes a pair of image observation devices each having i) an image pickup device, ii) an image pickup optical system for directing light rays from an outside world to the image pickup device, iii) a display device for displaying an outside world image obtained by the image pickup system, and iv) a display optical system for directing light from the display device to an observing eye. The optical axis of the image pickup system and the optical axis of the display system are disposed coaxially, wherein the optical axes of the image pickup systems of the pair of image observation devices define a point of intersection, and wherein a focal plane being at a position conjugate with a surface of the image pickup device with respect to the image pickup optical system is disposed at a side of the intersection point of the optical axes of the image pickup systems, which side faces an observer.

Abstract: An illumination brightness and color control system and method therefor are provided, implemented in a time division manner. A single photosensor senses and samples a point light source for the luminous intensity signal value. Then, the luminous intensity signal value at each wavelength and a target brightness/color value are computed to acquire a corrected current value, and the corrected current value is fed back to a light source driver. Therefore, the brightness/color value of the diode is adjusted to be in a steady state.

Abstract: The present invention provides a method for reducing the visual impact of defects present in a matrix display comprising a plurality of pixels, said pixels comprising at least three sub-pixels, each sub-pixel intended for generating a sub-pixel colour which cannot be obtained by a linear combination of the sub-pixel colours of the other sub-pixels of the pixel, the method comprising: providing a representation of a human vision system, characterizing at least one defect sub-pixel present in the display, the defect sub-pixel intended for generating a first sub-pixel colour, the defect sub-pixel being surrounded by a plurality of non-defective sub-pixels, deriving drive signals for at least some of the plurality of non-defective sub pixels in accordance with the representation of the human vision system and the characterizing of the at least one defect sub-pixel, to thereby minimize an expected response of the human vision system to the defect sub-pixel, and driving at lease some of the plurality of non-defecti

Abstract: A plasma display apparatus for reducing heat generated in a data driver for supplying a driving voltage to an address electrode formed on a plasma display panel when driving the plasma display apparatus, and a driving method of the same are provided. The plasma display apparatus includes a plasma display panel including an address electrode and a driver. The driver supplies the first data pulse to the address electrode when a temperature of the plasma display panel or an ambient temperature of the plasma display panel is less than a first temperature. Further, the driver supplies the second data pulse different from the first data pulse to the address electrode when the temperature of the plasma display panel or the ambient temperature of the plasma display panel is equal to or more than the first temperature.

Abstract: There are provided a plasma display apparatus and a method of driving the same. A plasma display apparatus according to an embodiment of the present invention comprises a Plasma Display Panel (PDP) in which a plurality of scan electrode and sustain electrode pairs are formed, and a sustain pulse driver for supplying two or more sustain pulses having a different Energy Recovery (ER) time to at least one of the scan electrode and the sustain electrode for a specific period as a ratio of a specific sustain pulse number.

Abstract: It is an object of the present invention to provide a plasma display apparatus in which reliable erase discharge is performed and an erroneous discharge is suppressed, even when a discharge sustain period is shortened so as to realize a PDP having high definition. The above object is achieved in the following manner. In the discharge sustain period, a pulse applied in the later part of the discharge sustain period has a larger pulse width than a pulse applied in the earlier part of the discharge period, except for an initial pulse in the discharge sustain period. In addition, a called narrow pulse is applied in an erase period to perform an erase discharge. According to this method, wall voltages in discharge cells at the end of the discharge sustain period are raised to a higher level than in the related art. As a result, reliable erase discharge is performed, and an erroneous discharge is suppressed.

Abstract: A method for adjusting an image on the basis of characteristics of a display system is provided. The image includes M horizontal lines. Each of the M horizontal lines respectively includes N pixels. Each pixel has an original gray level. A look-up table previously stores a plurality of conversion coefficients related to the characteristics of the display system. The method first calculates an ith loading according to the N original gray levels of the N pixels in the ith horizontal line. Based on the ith loading, an ith conversion coefficient corresponding to the ith loading is selected from the plurality of conversion coefficients in the look-up table. The method respectively multiplies the N original gray levels of the N pixels in the ith horizontal line by the ith conversion coefficient to generate N new gray levels for the N pixels in the ith horizontal line, whereby the image is adjusted.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus a first energy recovery circuit and a second energy recovery circuit. The first energy recovery circuit forms a first energy supply path for supplying an energy to a scan electrode and a first energy recovery path for recovering an energy from the scan electrode. The second energy recovery circuit forms a second energy supply path for supplying an energy to a sustain electrode and a second energy recovery path for recovering an energy from the sustain electrode. Inductance of an inductor positioned on the first energy supply path is less than inductance of an inductor positioned in the first energy recovery path. Inductance of an inductor positioned on the second energy supply path is less than inductance of an inductor positioned on the second energy recovery path.

Abstract: Provided is a pixel driving circuit including a threshold voltage compensation circuit. The pixel driving circuit includes a diode-connected type first transistor through which input current data flows; a second transistor copying the current data flowing through the first transistor; a third transistor connected in series to the second transistor; a fourth transistor diode-connected between a power supply voltage terminal and the third transistor; and a driving transistor connected to the power supply voltage terminal, copying the current data flowing through the third transistor, and providing the data to a light emitting diode. Since the pixel driving circuit compensates for variation in the threshold voltage of the driving transistor driving each pixel, brightness uniformity of pixels according to applied current data can be maintained.

Abstract: A load, a transistor which controls a current value supplied to the load, a capacitor, a power supply line, and first to third switches are provided. After a threshold voltage of the transistor is held by the capacitor, a potential in accordance with a video signal is inputted and a voltage that is the sum of the threshold voltage and the potential is held. Accordingly, variation in current value caused by variation in threshold voltage of the transistor can be suppressed. Therefore, a desired current can be supplied to a load such as a light emitting element. In addition, a display device with a high duty ratio can be provided by changing a potential of the power supply line.

Abstract: A display device includes a load, a transistor for controlling a current value supplied to the load, a capacitor, a first wiring, a second wiring, and first to fourth switches. Variations in the current value caused by variations in the threshold voltage of the transistor can be suppressed through the steps of: (1) holding the threshold voltage of the transistor in the storage capacitor, (2) inputting a potential in accordance with a video signal, and (3) holding a voltage that is the sum of the threshold voltage and the potential in accordance with the video signal, in the storage capacitor. Accordingly, a desired current can be supplied to the load such as a light emitting element.

Abstract: It is an object of the present invention to provide a display device in which a reverse current sufficient enough to insulate a short-circuited point flows and a transistor using amorphous silicon is used is applied. The display device includes a switching transistor that controls an input of a video signal, a driving transistor that controls a current flowing in a forward direction to a light emitting element, and an AC transistor that controls a current flowing in a reverse direction to the light emitting element; and a reverse bias current can be applied to the light emitting element. Furthermore, the above-described transistors are N-channel transistors.

Abstract: An EL display apparatus in which pixels having EL elements are formed in a matrix, has a constant current circuit which generates a predetermined constant current; and a gradation voltage circuit which generates a gradation voltage; wherein the constant current generated by the constant current circuit is supplied to the pixels via a source signal line; and the gradation voltage generated by the gradation voltage circuit is supplied to the pixels via the source signal line.

Abstract: The invention provides a semiconductor device which is capable of decreasing an effect of a variation in characteristics of transistors, supplying a predetermined current even when voltage-current characteristics of a load change, and improving a write speed of a signal sufficiently even when the amount of a signal current is small. In the semiconductor device, a current-voltage converting element and a transistor are connected in series; and an amplifier circuit detects a voltage which is applied when a current flows to the current-voltage converting element, and sets a gate-source voltage of the transistor depending on the voltage. Therefore, since the amplifier circuit has low output impedance, a write speed of a signal can be improved sufficiently even when the amount of a signal current is small.

Abstract: An image display device having a plurality of selfluminous pixels, for displaying an image by selectively making the pixels luminous is disclosed. The image display device includes: the pixels each divided into a plurality of small light-emitting sections; an ejection-direction selecting section that deflects the light emitted from the small light-emitting sections at predetermined angles according to the position of the small light-emitting sections in the pixel; and controller that selectively makes only small light-emitting sections that emit light that can reach the viewer luminous on the basis of viewer-position information indicative of the position of the viewer.

Abstract: It is an object of the present invention to provide a light emitting device which can be made into a module with smaller volume. By using a light emitting element represented by an EL element and the like as a pixel portion, two pixel portions are formed at different portions over the light emitting device. A first pixel portion comprises a plurality of pixels arranged in matrix. In the periphery of the first pixel portion, a first source line driving circuit and a first gate line driving circuit for transmitting signals to the first pixel portion are formed. A second pixel portion is formed of passive pixels, and segregated from a TFT group which constitutes the first pixel portion, the first source line driving circuit, and the first gate line driving circuit in the direction from the back surface of the substrate to the top surface of the substrate by interposing an interlayer film therebetween.

Abstract: An organic light emitting display device, which can independently (or freely or individually or arbitrarily) control light emission times of red, green and blue subpixels and a driving method thereof. The organic light emitting display device includes a plurality of subpixels connected with scan lines, light emitting control lines, and data lines; a scan driver for driving the scan lines and the light emitting control lines; and a data driver for driving the data lines. Here, the subpixels connected with one of the light emitting control lines generate lights of a same color.

Abstract: A self-luminous display apparatus, a peak luminance adjustment apparatus is disclosed wherein power to be consumed by a self-luminous display panel is compulsorily suppressed to a level within a prescribed range and consequently the life of a battery is maintained. A mean gradation value calculation section calculates a mean gradation value of a video signal inputted within a period of one frame. A power consumption calculation section determines a standard peak luminance corresponding to the calculated mean gradation value and calculates a power consumption amount to be consumed based on the standard peak luminance and the calculated mean gradation value. A peak luminance adjustment section adjusts the standard peak luminance so that a total value of the power consumption to be consumed within a fixed period of time may not exceed a preset power amount.

Abstract: Charge balanced display data writing methods use write and hold cycles of opposite polarity during selected frame update periods. Spatial dithering of hold cycle signals can reduce flicker.

Abstract: The present invention relates to a display film that may be transferred by lamination or otherwise onto a substrate. The display film is formed of a stack of layers that can include different types, arrangements, and functionality within the stack depending upon factors including the characteristics of the substrate (e.g., upper or lower, transparent or opaque, substrates) and addressing of the display (e.g., active or passive matrix, electrical or optical addressing). The layers of the stacked display film include one or more electrode layers and one or more liquid crystal layers and, in addition, may include various combinations of an adhesive layer, preparation layer, casting layer, light absorbing layer, insulation layers, and protective layers. The liquid crystal layer can include cholesteric or other liquid crystal material. The liquid crystal layer can be a dispersion of liquid crystal in a polymer matrix formed by a variety of techniques.

Abstract: Methods for detecting and eliminating a ghosting effect of liquid crystal display (LCD) are disclosed. The ghosting effect detecting method comprises the steps of providing a visual persistency period, providing a maximum color alternation speed of the LCD, obtaining a threshold value by multiplying the human visual persistency period by the maximum color alternation speed, calculating a variation of an intensity level of each of the plurality of pixel components of the LCD and comparing the threshold value and the variation of the intensity level to obtain a comparison result to determine whether the ghosting effect exists in the pixel component.

Abstract: A color filter substrate includes a base substrate, a first common electrode layer, a second common electrode layer, and a color filter layer. The base substrate includes a plurality of pixel parts. The first common electrode layer is on the base substrate and receives a first voltage. The second common electrode layer faces the first common electrode and receives a second voltage. The color filter layer is interposed between the first and second common electrode layers, and includes a plurality of electrochromic patterns corresponding to the pixel parts, respectively. A color purity of the color filter layer is changed based on the first and second voltages. The color filter layer displays an image of high color purity in a first mode transmitting a first light, and displays an image of low color purity in a second mode transmitting a second light. Therefore, a color reproducibility is improved.

Abstract: A liquid crystal display is provided. The liquid crystal display includes a plurality of first pixels provided with RGB color filters and a plurality of second pixels provided with CMY color filters are formed at a liquid crystal display panel. A video processing part is inputted with RGB data to generate CMY data, and selectively outputs RGB data inputted in accordance with a clock signal and CMY data generated in accordance with a clock signal. A control part controls a supply of RGB data or CMY data inputted from the video processing part in accordance with the clock signal. In accordance with a control part, a data driving part converts RGB data or CMY data outputted from the control part into an analog data, and then supplies it to the plurality of first pixel or the plurality of second pixel.

Abstract: A method of operating a display includes providing light having a luminance that varies periodically, overdriving a pixel circuit of the display, and modulating the light using the pixel circuit to generate modulated light. The amount of overdrive and the phase of the light relative to the overdriving of the pixel circuit are controlled such that the modulated light has a predetermined level of uniformity.

Abstract: A liquid crystal display and a driving method therefor comprises a plurality of pixels arranged in a matrix; data lines and gate lines connected to the pixels; a signal controller processing first image data and a plurality of control signals from an external device and transmitting the processed first image data and control signals; and a data driver connected to the signal controller, wherein the signal controller divides the first image data into and sequentially processes a plurality of sets respectively including the first image data for at least two pixel rows, while delaying the remaining image data excluding the last image data among the first image data of each of the sets, and the data driver applies a charge sharing voltages as impulse voltages to the predetermined number of pixel rows during the delayed time, thereby displaying impulse images.

Abstract: A display device for compensating for degradation of a threshold voltage of a driving thin-film transistor (“TFT”) and method for driving the display device includes a light-emitting element, wherein the light-emitting element emits light by a driving current applied thereto, a driving TFT controlling the magnitude of the driving current directed to the light-emitting element, a capacitor which charges a voltage which varies depending on a data voltage and a threshold voltage of the driving TFT and maintains a voltage corresponding to a difference between the data voltage and a gate voltage of the driving TFT, a first switching unit supplying the data voltage to the capacitor in response to a scan signal, and a second switching unit which is diode-connected and supplies the driving TFT with a light emitting signal.

Abstract: In a display apparatus, second organic EL elements are closer to the edge of a display portion than first organic EL elements. The voltage drop in the first organic EL element is larger than that in the second organic EL element. The thickness of the organic compound layer in the first organic EL element is different from the thickness of the organic compound layer in the second organic EL element. The light-extraction efficiency in the first organic EL element is higher than the light-extraction efficiency in the second organic EL element.

Abstract: An exemplary liquid crystal display includes a plurality of gate lines (201) and a plurality of data lines (202) insulated from and crossing with each other defining a plurality of display regions, each one of the display region includes a first pixel unit (208), and a second pixel unit (218). The first pixel unit includes a P-type thin film transistor (203) having a gate (2031), and the second pixel unit includes an N-type thin film transistor (213) having a gate (2131). The gates of the P-type and N-type thin film transistors are both connected to a same one of the gate line.

Abstract: A display device having light-emitting pixels, a driving transistor that supplies a current to the light-emitting pixels, a switching transistor that is connected to the driving transistor and selectively transmits a data voltage, and a first capacitor that turns off the driving transistor according to a voltage signal. A capacitor that adjusts a voltage of a control terminal of a driving transistor is provided, thereby performing impulsive driving.

Abstract: An exemplary thin film transistor liquid crystal display (TFT-LCD) (100) includes an LCD panel having a number n (where n is a natural number) of gate lines G1-Gn that are parallel to each other, a data driving circuit (120), and a gate driving circuit (110). The gate driving circuit sequentially providing 3-level scanning signals to scan the gate lines G1-Gn. Each 3-level scanning signal sequentially includes a gate-on voltage, a feed-through compensation voltage, and a gate-off voltage wherein the gate-on voltage starts to be provided to a (Gi+1)th (1?i?n?1) of the gate lines G1-Gn at the time when the feed-through compensation voltage starts to be provided to a (Gi)th of the gate lines G1-Gn.

Abstract: The present invention reduces power consumption of a display device. The display device includes a wire to which a video signal is input, a first capacitor element and a second capacitor element which are connected to the wire in parallel, and a pixel. Between the first capacitor element and the wire, a first switch is provided so as to control conduction and non conduction between the first capacitor element and the wire. Between the second capacitor element and the wire, a second switch is provided so as to control conduction and non conduction between the second capacitor element and the wire. The pixel and the wire are arranged such that the pixel and the wire can be connected to each other, and a video signal can be input to the pixel.

Abstract: A display device includes a display panel including a gate line and a data line, a gate driver that outputs a gate voltage to the gate line according to a gate output enable signal, a data driver that outputs a data voltage to the data line, a detecting circuit that detects a state of a clock signal. The state of the clock signal includes a normal or abnormal state. A masking circuit performs a masking operation for the gate output enable signal according to the state of the clock signal and a level of a reset signal, where the level of the reset signal includes a first or second level corresponding to a power-on or off of the display device, respectively.

Abstract: A liquid crystal display device for automatically selecting a common voltage adaptive for a scan line system to supply it to a common electrode of liquid crystal cells is disclosed. In the liquid crystal display device, a controller is selectively controls a supply of a first common voltage or a second common voltage in accordance with a scan line system of an image signal displayed at a liquid crystal display panel. A first common voltage generator supplies the first common voltage in accordance with a control of the controller to the common electrode of the liquid crystal cells. And, a second common voltage generator supplies the second common voltage in accordance with a control of the controller to the common electrode of the liquid crystal cells.

Abstract: A source driver and a source line driving method capable of removing the offset effect of an amplifier for every two frames. The source driver includes an amplification unit, an input controller and an output controller. The amplification unit includes a positive amplifier outputting an output voltage having a positive deviation relative to an input voltage applied thereto and a negative amplifier outputting an output voltage having a negative deviation relative to an input voltage applied thereto. The input controller transfers a first gray-level voltage corresponding to a driving voltage of a first source line and a second gray-level voltage corresponding to a driving voltage of a second source line adjacent to the first source line to the amplification unit in response to input positive control signals or input negative control signals.

Abstract: Disclosed is a digital-to-analog converter including a decoder which receives m (where m>=4 holds) reference voltages having voltage values that differ from one another, and selects and outputs n (where n>=3 holds) identical or different voltages from among the m reference voltages based upon a digital signal; and an amplifying circuit that outputs a voltage, which is obtained by taking the weighted mean of the selected n voltages at a ratio of 2n?1:2n?2: . . . :20, from an output terminal.

Abstract: A light source driving apparatus according to the present invention includes a controller, a first driver and a second driver. The controller outputs a first control signal to drive the light source in a normal-luminance mode and outputs a second control signal to drive the light source in a low-luminance mode. The first driver drives the light source, based on a first voltage in response to the first control signal in the low-luminance mode. The second driver drives the light source, based on a second voltage in response to the second control signal in the normal luminance mode. Therefore, the light source driving apparatus driving the light source decreases current-consumption and prevents unnecessary power consumption from increasing in a low-luminance driving mode.

Abstract: In a 3D display having a plurality of display regions and corresponding backlight regions, the image data is sequentially sent to the display regions. The respective light source(s) of the corresponding backlight region is/are turned ON after a response time of each display region, without waiting for a response time or times in the other display regions. The light source(s) is/are then turned OFF after a predetermined time period. The process repeats for further image data.

Abstract: An electrophoretic display device is constituted by a first substrate and a second substrate which are disposed with a spacing therebetween, a partition wall disposed in the spacing, electrophoretic particles sealed in a closed space defined by the first and second substrates and the partition wall, a first electrode disposed a side surface of the closed space, and a second electrode disposed at a bottom surface of the closed space. In the electrophoretic display device, a distribution state of the electrophoretic particles is changed to effect display, and the first electrode has an area substantially equal to or larger than an area of the second electrode.