Abstract: Provided is a shaped-beam antenna having a multi-layered conductive element array surrounded by a dielectric ring. The shaped-beam antenna includes: a planar excitation element having a radiation structure according to a required polarization; a multi-layered conductive element array disposed on the planer excitation element, wherein the multi-layered conductive element array is formed by layering conductive elements at an arbitrary interval; and a dielectric ring surrounding the multi-layered conductive element array at a predetermined separation distance therefrom. Accordingly, it is possible to reduce the entire size of the shaped-beam antenna and manufacturing costs thereof.

Abstract: Disclosed is a Radio Frequency Identification (RFID) tag antenna. The tag antenna includes a lower dielectric substrate and an upper dielectric substrate. The lower dielectric substrate is provided at a lower surface thereof with a ground plane and at an upper surface thereof with two microstrip lines. The microstrip lines each have an open-end, the open ends spaced apart from each other from a middle of the lower dielectric substrate while facing each other to form a radiating slot from which radiation of electromagnetic waves occurs. The upper dielectric substrate is provided at an upper surface thereof with at least one electric capacitive device and is stacked on the lower dielectric substrate. The RFID tag antenna enhances radiation efficiency while achieving miniaturization.

Abstract: An antenna includes a base, a first radiating element, and second radiating element. The first radiating element is open at a first end thereof, is connected to a ground point at a second end thereof, and resonates in a substantially ¼ wavelength mode in a first communication frequency band. A feed line is connected between a first feed point and a predetermined position between the first end and the second end of the first radiating element. The second radiating element has a first end that is a second feed point, a second end that is connected to the ground point, and resonates in a substantially ½ wavelength mode in a second communication frequency band. A distance from the ground point to the second feed point is longer than a distance from the ground point to the first feed point.

Abstract: An inverted-F antenna is disclosed including: a radiating body including a plurality of radiating portions, and some of the radiating portions located on a same plane; a shorting element extending outward from the radiating body and forming a first predetermined included angle with one of the radiating portions; a feeding element extending outward from the radiating body and forming a second predetermined included angle with one of the radiating portions; and a protrusion extending outward from the radiating body and forming a third predetermined included angle with one of the radiating portions; wherein at least one of the first, second, and third predetermined included angles is substantially a right angle.

Abstract: An antenna used in wireless communication, provided with an antenna element and a GND portion on a dielectric board and mounted in an electronic device, includes a open conductor having a high-frequency connection to the GND portion at an end of the dielectric board in the opposing corner direction from a power supply point of the antenna element. The length of the GND portion in the vertical direction relative to the propagation direction of a high-frequency signal is less than ¼ the wavelength of the operating frequency of the antenna element.

Abstract: Methods and apparatus for determining parameters for an array are described. An exemplary embodiment of a method determines a set of parameters for an antenna array including multiple array elements, the array being fed by a feed array including a plurality of feed elements. The embodiment of the method includes measuring a plurality of bistatic ranges Rijk through different signal path combinations, each signal path combination from a feed element “i,” to an array element “j,” and to a feed element “k”. The measuring includes radiating energy from feed element “i”, and reflecting some of the radiated energy from array element “j” back to feed element k of the feed array. The measured bistatic ranges are processed to solve for the set of parameters.

Abstract: A method, system, and device relating to a broad-band fragmented aperture tile and antenna system are disclosed. In one exemplary embodiment, an aperture tile comprises a plurality of unit cells. The plurality of unit cells individually comprise a driven radiating element layer, a module layer having a printed circuit board, wherein the module layer comprises one or more of a time delay module, a radio frequency distribution module, a radio frequency module, or a digital signal processor. Furthermore the aperture tile is coupled to a cold plate configured for heat transfer.

Abstract: Each personal identification device includes a planar identification element with at least a core of flexible, porous and preferably microvoided polymer sheet material and a planar RFID assembly encoded with a unique electro/magnetic code permanently and integrally joined together with the core. The sheet material is sufficiently porous to collapse around the core so the sheet product remains planar yet flexible. A separate carrier can be provided or devices can be made in batches with scoring define one or more individual RFID devices removable from a remainder of a sheet product.

Abstract: Antennas systems are disclosed providing for the use of heat harvesters such as thermophotovoltaic cell materials for converting waste heat from antenna transmitters into useful electricity. A further aspect of the present disclosure provides for transmitters that include high-temperature solid-state power amplifiers for operation at relatively high temperatures, reducing or eliminating the need for thermal heat spreaders or heat sinks. Quantum-effect thermophotovoltaic cells, including quantum-dot based thermophotovoltaic cells are described. Field-coupling is described to extract energy from a quantum-dot based TPV. Novel solar cells are also disclosed.

Abstract: An antenna having a capacitive element is disclosed. Herein, the antenna is configured of a radiator, a ground plane being spaced apart to a predetermined distance from the radiator, a ground pin electrically connected to the radiator and the ground plane, a capacitive element located between the radiator and the ground plane, a first branch arm electrically connecting the capacitive element and the radiator, and a second branch arm electrically connecting the capacitive element and the ground plane. Thus, multiple band and broad band characteristics can be realized by the simple structure of the antenna.

Abstract: Embodiments provide multi-band, compound loop antennas (multi-band antennas). Embodiments of the multi-band antennas produce signals at two or more frequency bands, with the two or more frequency bands capable of being adjusted and tuned independently of each other. Embodiments of a multi-band antenna are comprised of at least one electric field radiator and at least one monopole formed out of the magnetic loop. At a particular frequency, the at least one electric field radiator in combination with various portions of the magnetic loop resonate and radiate an electric field at a first frequency band. At yet another particular frequency, the at least one monopole in combination with various portions of the magnetic loop resonate and radiate an electric field at a second frequency band. The shape of the magnetic loop can be tuned to increase the radiation efficiency at particular frequency bands and enable the multi-band operation of antenna embodiments.

Abstract: Embodiments provide multi-band, compound loop antennas (multi-band antennas). Embodiments of the multi-band antennas produce signals at two or more frequency bands, with the two or more frequency bands capable of being adjusted and tuned independently of each other. Embodiments of a multi-band antenna are comprised of at least one electric field radiator and at least one monopole formed out of the magnetic loop. At a particular frequency, the at least one electric field radiator in combination with various portions of the magnetic loop resonate and radiate an electric field at a first frequency band. At yet another particular frequency, the at least one monopole in combination with various portions of the magnetic loop resonate and radiate an electric field at a second frequency band. The shape of the magnetic loop can be tuned to increase the radiation efficiency at particular frequency bands and enable the multi-band operation of antenna embodiments.

Abstract: Embodiments provide multi-band, compound loop antennas (multi-band antennas). Embodiments of the multi-band antennas produce signals at two or more frequency bands, with the two or more frequency bands capable of being adjusted and tuned independently of each other. Embodiments of a multi-band antenna are comprised of at least one electric field radiator and at least one monopole formed out of the magnetic loop. At a particular frequency, the at least one electric field radiator in combination with various portions of the magnetic loop resonate and radiate an electric field at a first frequency band. At yet another particular frequency, the at least one monopole in combination with various portions of the magnetic loop resonate and radiate an electric field at a second frequency band. The shape of the magnetic loop can be tuned to increase the radiation efficiency at particular frequency bands and enable the multi-band operation of antenna embodiments.

Abstract: An antenna includes a first antenna portion, a second antenna portion, a third antenna portion, a feed portion, and a ground portion. The first antenna portion perpendicularly connects to the feed portion and the ground portion. The second antenna portion connects to the first antenna portion. The third antenna portion connects to the feed portion. The first antenna portion and the second antenna portion are both located on a plane perpendicular to the feed portion. The feed portion, the ground portion, and the third antenna portion are coplanar.

Abstract: A compact, omnidirectional, broadband biconical antenna is described, having a first segment with its tip coincident with a horizontal plane, with an elevation angle between 23 degrees and 30 degrees from the horizontal plane; an open second segment joined to a distal end of the first segment, an elevation angle approximately 30 degrees greater than the first segment angle; an open third segment joined to a distal end of the open second segment, an elevation angle approximately 30 degrees greater than the open second segment angle; an open fourth resistive film segment joined to a distal end of the open third segment, an elevation angle approximately equal to the open third segment angle, wherein the segments are mirrored to form a biconical antenna; and a transmission line coupled to the tip of the first segment, interior to the first segment.

Abstract: An antenna module includes a substrate, a main radiation structure, a strip-shaped radiation structure, a grounding structure, a shorting structure, a parasitic radiation structure and a metal radiation member. An acute angle is included between a first edge of the main radiation structure and a longitudinal edge of the substrate. The main radiation structure has a signal feeding portion and a connecting portion. The strip-shaped radiation structure is extended from a second edge of the main radiation structure. The shorting structure is U-shaped. A first end of the shorting structure is connected to the signal feeding portion and a second end of the shorting structure is connected to the grounding structure. The parasitic radiation structure is extended from the grounding structure and parallel to the first edge. A constant distance is between the parasitic radiation structure and the first edge. The metal radiation member is connected to the connecting portion.

Abstract: An antenna arrangement (200, 300, 400) with antenna units (220, 230) comprising an input port (201, 202), a power divider (202, 204) for dividing an input signal into a major and a minor part with a ratio 11, a network (211, 216) with a sum input port, a difference input port, and first and second output ports, first (215, 217) and second antenna (214, 218) elements of a first and a second polarization. Signals to the sum input port are output with a first relation between them and signals to the difference input port are output with a second phase relation. The antenna units are arranged so that the major part of an input signal is connected to the sum port of a network and the minor part of an input signal is connected to the difference port of another network, and the first and second output ports of a network are connected to first and second adjacent antenna elements of the same polarization.

Abstract: An electromagnetic wave filter apparatus includes: a shield conductor; a shield aperture provided in the shield conductor; a plurality of strip conductors, each of which is connected to the shield conductor at both ends thereof, and which divide the shield conductor into a plurality of apertures; and a plurality of stub conductors provided at intervals on each of the strip conductors. Each of the stub conductors prevents a current with a predetermined frequency from flowing through a corresponding strip conductor due to an electromagnetic wave with the predetermined frequency passing through the electromagnetic wave filter apparatus. Thus, the electromagnetic wave filter apparatus passes the electromagnetic wave with the predetermined frequency without exerting a substantial influence on radiation of the electromagnetic wave with the predetermined frequency.

Abstract: A portable electronic device includes a base, an antenna radiator, an outer layer, and at least one conductive contact. The antenna radiator is formed on the activated base by plating. The antenna radiator is sandwiched between the base and the outer layer. One end of each conductive contact is electrically connected to the antenna radiator, and the other end of the each conductive contact is exposed.

Abstract: Antenna placement techniques are described. In one or more embodiments, a computing device includes an antenna suite having multiple different kinds of antennas. An antenna zone for the antenna suite may be established along a particular edge of the computing device. Non-interfering materials (e.g., RF transparent material) may be used within the antenna zone and other materials (e.g., metal) may be employed for other regions of the device. The multiple different kinds of antennas in the antenna suite may then be disposed within the established antenna zone. The antennas may be placed to minimize interference between antennas and/or achieve performance objective for the suite of antennas. In one approach, a suite of five antennas may be placed along a top edge of a computing device in a landscape orientation.

Abstract: A modular plug-in antenna array capable of low cost and automated manufacturing is disclosed. The antenna element is designed to work efficiently over a broadband with simplified assembly requirements and to be used in discrete or array applications. Plug-in antennas eliminate the need for external tools, and allow the antenna to be removed, for service, test, and ease of assembly. Many transceivers are assembled using printed circuit board techniques whereon electronic components are mounted using a pick and place process. The plug-in antenna connects directly onto the circuit board; with connectors that are compatible with a pick and place process and which are produced in mass quantities for the computer and telecommunications industry, thus yielding lower costs than traditional high performance RF coaxial connectors.

Abstract: An apparatus for multiple antennas having a low coupling coefficient in a wide frequency bandwidth in a wireless communication system is provided. To obtain the low coupling coefficient in the wide frequency bandwidth by minimizing interference between antennas which are close to each other, without an additional device, in the wireless communication system, the apparatus includes a transceiver and a line for decreasing a coupling coefficient. The transmitter includes a first antenna and a second antenna for transmitting and receiving signals over a radio channel and the line is indirectly connected the first antenna and the second antenna using a physically disconnected line.

Abstract: The invention concerns a reflector (8) of radio frequency (RF) energy. The reflector includes a first web layer (9a) formed from a knit of at least a first conductive filament (11a), and a second web layer (9b) formed of a knit of at least a second conductive filament (11b). The first and second web layers can be formed as an open mesh 10. The second web layer is positioned on the first web layer to form a stack. Fastening members (14, 16) are disposed at intervals across a surface of each of the first and second web layers. The fastening members are advantageously configured to secure the first web layer to the second web layer. The invention also concerns a reflector antenna formed using the reflector of radio frequency energy. The reflector antenna includes antenna support elements (18), and the first and second web layers are secured to the antenna support structure to define a curved three dimensional surface.

Abstract: A dynamically-reconfigurable feed network antenna having a microstrip patchwork radiating surface wherein individual radiating patches and elements of a stripline feed structure can be connected to and disconnected from each other via photoconductive interconnections. Commands from software alternately turn light from light emitting sources on or off, the light or lack thereof being channeled from an underside layer of the antenna so as to enable or disable the photoconductive interconnections. The resultant connection or disconnection of the radiating patches to each other and to the stripline feed structure will vary the antenna's frequency, bandwidth, and beam pointing.

Abstract: There is provided an antenna reflector including at least first and second reflector segments, each having first and second sides. The first and second reflector segments being configured to be connected together wherein the first sides of the first and second reflector segments define a substantially continuous surface of an antenna reflector. A first latch member is attached to the second side of the first reflector segment and a second latch member is attached to the second side of the second reflector segment. Each latch member includes an abutting surface which contacts one another when the first and second reflector segments are connected together. At least one protrusion extends from the abutting surface of the first latch member. There is at least one recess in the abutting surface of the second latch member. The protrusion is received in the recess when the respective abutting surfaces contact one another.

Abstract: In order to easily display data on a display device, an MFP connected to a plurality of television conference terminal devices each displaying data stores device information in an HDD for a respective one of the television conference terminal devices, to store a format in which the corresponding terminal device inputs data. The MFP includes a data acquiring portion to acquire data, an output destination accepting portion to accept an output destination of data, a conversion portion, when one of the television conference terminal devices is accepted as an output destination device which is the output destination of data, to convert a format of the acquired data to the format stored corresponding to the output destination device in the device information, and a communication control portion to output the data converted by the conversion portion to the output destination device.

Abstract: A functional, primary display means comprises a number of first, small pixel elements and comprises or communicates with image generating means for generation of a high resolution miniature image. A main display means comprises a dielectric material which is transparent to radio-, and/or millimeter waves and/or microwaves and comprises a number of second, passive, pixel elements substantially corresponding to, and considerably larger than, the first pixel elements. Each first pixel element is connected to a second pixel element by an optical transmission means for transfer of optical image information. The main display means is adapted to visually represent the transferred optical information as an enlarged image and receiving/transmitting means for communication of radio-, millimeter wave or microwave signals are arranged in or on the main display means such that reception/transmission can take place substantially independently of the optical representation.

Abstract: A head mounted display includes: an image presentation portion that sequentially presents each of content images to a user's eye; an imaging portion that images an object when the content images are presented; an event acquisition portion that acquires an event occurring outside; a storage control unit that stores imaging data including the imaged object and imaging time position information regarding an imaging time; an event determination unit that determines whether the acquired event has a specific feature; a first specification unit that specifies first time position information regarding a timing when the event having the specific feature is occurred; and a first association registration unit, which, when the event has the specific feature, associates presentation identification information for identifying the presented content images with the first time position information, and which registers the presentation identification information and the first time position information.

Abstract: A display panel includes a face plate having a transparent substrate, a plurality of phosphor layers disposed on the transparent substrate for emitting different color lights, and a plurality of transmittance adjustment layers interposed between the transparent substrate and the plurality of phosphor layers. Each transmittance adjustment layer corresponds to each phosphor layer for adjusting the transmittances of the lights emitted from the plurality of phosphor layers, and the transmittance adjustment layers have a filtering function with an approximately constant transmittance in the visible light wavelength region. In addition, a rear plate has a plurality of display elements each corresponding to each phosphor layer, wherein the face plate and the rear plate are disposed so that the phosphor layers formed on the face plate are opposite to the display elements formed on the rear plate.

Abstract: The invention provides power-supply wiring preferable for large displays. An electro-optical device according to the present invention includes a pixel area including electro-optical elements driven by power supplied from power-supply circuits. The electro-optical device includes basic power-supply lines, which receive a power-supply voltage output from the power-supply circuits and which are formed on the upper portion of a substrate, and includes main power-supply lines which intersect the basic power-supply lines and which are formed on the upper portion of the substrate. The power-supply voltage is supplied to the electro-optical elements via the main power-supply lines.

Abstract: An organic light emitting display device includes a scan driver for sequentially supplying a scan signal through scan lines; a data driver for supplying an initial power through data lines during a first period of a time period when the scan signal is supplied through a corresponding scan line of the scan lines, and for supplying data signals to the data lines during a second period of the time period when the scan signal is supplied through the corresponding scan line, the second period following the first period; and pixels at crossing regions of the scan lines and the data lines.

Abstract: A display apparatus includes: a pixel array in which pixel circuits each having a light emitting device, a drive transistor, a sampling transistor, and a retention capacity; a signal selector that supplies threshold correction reference voltages and a video signal voltages as to signal lines arranged in columns on the pixel array; a drive control scanner that provides power supply pulses to power supply control lines arranged in rows on the pixel array and applies drive voltages to the drive transistors; and a write scanner that provides scan pulses to write control lines arranged in rows on the pixel array to control the sampling transistors and executes input of the threshold correction reference voltages and the video signal voltages to the pixel circuits, and brings the sampling transistors into conduction by the scan pulses at plural times when the signal line voltages are the threshold correction reference voltages in order to execute plural threshold corrections in non-emission periods of one light emi

Abstract: In an organic electroluminescence display device (30) comprising an organic EL element (26) having a structure wherein an organic luminescent medium (24) is sandwiched between a top electrode (20) and a bottom electrode (22), and a driving circuit (14) for driving the organic EL element (26), the organic luminescent medium (24) comprises a host compound and a triplet-related luminous compound and the driving circuit (14) applies a electric pulse voltage or pulse current having a frequency of 30 Hz or more and a duty ratio of 1/5 or less. In this way, it is possible to provide an organic EL display device which consumes a low electric power and has a long luminous life span, and a method for driving the same.

Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes an average luminance calculator (200) for calculating average luminance for a predetermined period of the input picture signal, and also includes a luminous time setter (202) for setting an effective duty depending on the calculated average luminance by the average luminance calculator (200), the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous. The luminous time setter (202) sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of a picture signal.

Abstract: According to an embodiment of the present invention, there is provided a display that includes a pixel array part having a plurality of pixel circuits that are arranged in a matrix and each have at least one transistor of which conduction state is controlled through reception of a drive signal to a control terminal, and a scanner including a plurality of buffers that are formed of transistors. The buffers correspond to a pixel arrangement and output a drive signal to the control terminals of the transistors included in the pixel circuits. The transistors in the pixel circuits and the transistors in the buffers are formed through irradiation with laser light that is moved for scanning in a predetermined direction and has a predetermined wavelength. The transistors in the buffers are formed in such a way that the channel length direction of the transistors is set parallel to the scan direction of the laser light.

Abstract: A display apparatus and a displaying method thereof can improve picture quality. The display apparatus includes: a light emitting display; a camera module to take a picture; a brightness controller to generate a voltage corresponding to a gradation value of image data transmitted from the camera module based on a gamma curve, and to apply the generated voltage to the light emitting display; a controller to control the camera module and the brightness controller; and an image compensator to create a control value on the basis of an average of first brightness data corresponding to a predetermined region of a frame data transmitted from the camera module, and an average value of second brightness data transmitted from the controller corresponding to the other regions of the frame data. In the display apparatus, the controller resets at least one of amplitude and a gradient of the gamma curve on the basis of the control value.

Abstract: An electro-optic device includes an electro-optic panel that includes a pixel region having a plurality of pixels arranged at a plurality of intersections where a plurality of scanning lines and a plurality of data lines cross each other, a polarity reverser that reverses, at a first frequency, a polarity of a video signal supplied to the plurality of pixels, a light source that emits light onto the pixel region, a pulse driver that pulse-drives the light source at a second frequency, and a setter that sets the first frequency and the second frequency so that a difference value between each of a plurality of first frequency components of the first frequency and each of a plurality of second frequency components of the second frequency is greater than a predetermined threshold value.

Abstract: A method of displaying a video image comprises receiving sequential image frames at a processor. Each image frame is processed to obtain a kinoform. A programmable diffractive element such as an SLM represents the sequence of kinoforms allowing reproduction of the image using a suitable illumination beam.

Abstract: Each of pixels of a liquid crystal display device according to the present invention includes a reflective region R and a transmissive region T. A pixel electrode 14 includes a reflective pixel electrode 15 and a transparent pixel electrode 14. The liquid crystal display device includes a pair of vertical alignment films 32a, 32b respectively provided between the pixel electrode 14 and a liquid crystal layer 42 and between a counter electrode 24 and the liquid crystal layer 42; and a pair of alignment sustaining layers 34a, 34b respectively provided on surfaces of the pair of vertical alignment films on the liquid crystal layer side and formed of a photopolymerization product. The first substrate or the second substrate has a plurality of protrusions 23A provided in correspondence with the reflective regions of the plurality of pixels and protruding toward the liquid crystal layer.

Abstract: A multi-primary-color liquid crystal display device according to the present invention is adapted to conduct a display operation in at least four primary colors. The device has a plurality of pixels that form at least two different types of subsets. The device can perform rendering processing in which at least one of the pixels that form a first one of the at least two different types of subsets lends a luminance to a second type of subset. Each pixel includes a first sub-pixel and a second sub-pixel that could have mutually different luminance. The second type of subset borrows a luminance from one of the first and second sub-pixels of the at least one pixel that has the higher luminance.

Abstract: A liquid crystal display device includes: a liquid crystal panel; a temperature sensing means configured to measure a real-time temperature of the liquid crystal panel; a backlight unit configured to supply a light to the liquid crystal panel; a control unit configured to convert an image signal into an RGB signal and to convert a first dimming signal to a second dimming signal according to the real-time temperature; and an inverter unit configured to adjust the backlight unit using the second dimming signal.

Abstract: The present invention provides method and device for driving local dimming in a liquid crystal display device which enables adaptive application of a gradation roll-off according to an image characteristic.

Abstract: A liquid crystal display (LCD) device is provided. The LCD device comprises a data signal line in a first plane and a common electrode line in a second plane, and the common electrode line comprises an intersection region, which is a region where a projection of the common electrode line in the first plane overlaps with a region of the data signal line. The intersection region comprises a plurality of narrow common electrode lines.

Abstract: Disclosed herein are a liquid crystal display device which is capable of driving a liquid crystal using image signals supplied to two adjacent data lines, and a driving method thereof. The liquid crystal display device has a plurality of liquid crystal cells formed respectively in pixel areas defined by intersections of n gate lines and m data lines. Each of the liquid crystal cells includes a thin film transistor connected to any one of the gate lines and any one of two data lines adjacent respectively to left and right sides of a corresponding one of the liquid crystal cells, among the data lines, and a liquid crystal capacitor and a storage capacitor each formed between the other one of the two adjacent data lines and the thin film transistor.

Abstract: A gate driving circuit includes a first shift register and a second shift register for driving odd gate lines. The first shift register includes a first plurality of cascade-connected stages that sequentially output a plurality of first gate signals. A first stage of the first shift register receives a first vertical start signal. The second shift register includes a second plurality of cascade-connected stages to sequentially output a plurality of second gate signals. The first stage of the second shift register receives an output signal of the first stage of the first shift register as its vertical start signal. A data charging rate may be improved by ensuring the timing margin of each gate signal, so that the driving reliability of the gate driving circuit may be improved.

Abstract: Disclosed is a display apparatus including two scanning circuits of the same configuration and layout, arranged on either sides of the display part. As long as one of the scanning circuits is in operation, the other scanning circuit is in a state in which no output signal is output.

Abstract: An electro-optical device is configured to be capable of using a region of a gate line drive circuit efficiently and preventing rising speed of a gate line selection signal from decreasing (rising delay), and a shift register circuit is composed of a single conductivity type transistor which is suitable for the device. The gate line drive circuit including an odd driver to drive odd rows of a plurality of gate lines, and an even driver to drive even rows thereof. Each unit shift register in the odd and even drivers receives a selection signal in the second previous row and activates its own selection signal two horizontal periods later. A start pulse of the even driver is delayed in phase by one horizontal period with respect to a start pulse of the odd driver.

Abstract: An apparatus for enhancing image contrast includes a micro-processor which presets a plurality of thresholds, such as a black threshold and a white threshold. When determining the brightness of an image is lower than the black threshold, the micro-processor decreases the illumination level of a light source. When determining the brightness of an image is higher than the white threshold, the micro-processor increases the illumination level of the light source. A method for enhancing image contrast includes the steps of receiving an image data; determining whether the brightness of an image is lower than the black threshold; if yes, decreasing the illumination level of the light source; determining whether the brightness of the image is higher than the white threshold; and if yes, increasing the illumination level of the light source.

Abstract: A light emitting element drive apparatus capable of always outputting the lowest voltage satisfying the drive conditions and having a high light emitting efficiency and a low power loss, and a portable apparatus using the same, comprising an LED drive apparatus 10 to which LEDs 20-1 to 20-n of different drive voltages required for emitting light are connected in parallel and driving one or more LEDs, wherein the LED drive apparatus 10 has drive circuits 13-1 to 13-n connected to the corresponding LEDs among a plurality of LEDs and driving the corresponding LEDs with luminances based on set values and power supply circuits 14 and 15 for deciding a drive voltage value required for the highest light emission among one or more LEDs driven to emit light based on drive states of drive circuits (for example terminal voltages of the current source) and supplying a drive voltage having at least the decided value to a plurality of LEDs in parallel.

Abstract: This invention relates to a processing device and processing method of high dynamic contrast for liquid crystal display apparatus, the processing device comprises a receiver, an inverter, and a source driving IC connected with a central processing module. The processing method includes: performing a histogram statistical process on received low voltage Differential Signaling data; obtaining a backlight source dimming coefficient and a Gamma reference voltage parameter of the same frame of picture according to the result of the histogram statistical process. controlling the brightness of the backlight source according to said backlight source dimming coefficient; controlling the voltage of the pixel capacitor on the liquid crystal panel according to said Gamma reference voltage parameter.