7693 results about "Green-light" patented technology

A color display panel formed with a plurality of pixels in a matrix with a row direction and a column direction, wherein each pixel comprises a first sub-pixel, a second sub-pixel and a third sub-pixel adjacently aligned along the row direction of the pixel matrix, and a red light emission zone, a green light emission zone and a blue light emission zone. In one embodiment, the color display panel comprises an arrangement of the red, green and blue light emission zones of a pixel in a triangle with the geometrical center of each emission zone located at a respective vertex of the triangle such that one side of the triangle is substantially parallel to one of the row direction and the column direction, thereby in the plurality of pixels, any two adjacent light emission zones of different colors in the row direction define a gap having a distance, and any two adjacent light emission zones of different colors in the column direction define a gap having a distance that is substantially or nearly the same as the distance of the gap defined between two adjacent light emission zones of different colors in the row direction.

A low cost LCD device employing a high speed field sequential drive scheme. The liquid crystal display device comprises: a liquid crystal display array divided into a first area, a second area and a third area, in each of which are included a plurality of pel lines; a first device for performing an operation for sequentially writing first color data, selected from data provided for red, green and blue, along the plurality of pel lines in the first area, an operation for sequentially writing second color data, selected from data provided for red, green and blue, along the plurality of pel lines in the second area, and an operation for sequentially writing third color data, selected from data provided for red, green and blue, along the plurality of pel lines in the third area; a backlight device, which is divided into N backlight sections, with N being a multiple of three (3) and is equal to or greater than (6), and which selectively generates red light, green light or blue light, wherewith N / 3 backlight sections illuminate the first area, N / 3 backlight sections illuminate the second area and N / 3 backlight sections illuminate the third area; and a second device for sequentially activating the N / 3 backlight sections for the second area to generate second color light and sequentially displaying the second color data in the second area, and for sequentially activating the N / 3 backlight sections for the third area to generate third color light and sequentially displaying the third color data in the third area.

A spectral conversion device including a plurality of discrete units dyed with a photoluminescent material at a concentration greater than or equal to an amount sufficient to absorb and convert substantially all input light from a light source to a desired output spectrum, and a coating material disposed around the discrete units, wherein the coating material binds the plurality of discrete units to form a matrix, wherein when the plurality of discrete units are positioned over the light source, the input light passing through the transparent discrete units is not converted, and the input light passing through the doped discrete units is converted to red and green wavelengths, further wherein the emitted input light and the converted red and green light correspond to the desired output spectrum to produce one or more colors. An associated method and an associated device used with flat panel image displays are also provided.

Embodiments in accordance with the invention provide communication between vehicles and traffic control devices and / or other vehicles. The communication system provides for communication of system variables such as: signal setting (e.g., red / yellow / green light), signal direction, time to signal change, signal sequence (e.g., next traffic flow), red light runner alert, signal failure, driver urgency, vehicle presence, absolute vehicle location, toll collection information, vehicle speed, roadway condition (e.g., ice on bridge surface), traffic impairments (e.g., delay ahead). The communication system also provides for communication of system variables such as: speed, acceleration / deceleration, braking, lane change with direction, malfunction (e.g., stall). The system communicates utilizing wireless optical, acoustic and / or radio frequency signaling methods.

An illumination light source includes four different types of LEDs, namely a blue light-emitting diode 11 emitting blue light, a blue-green light-emitting diode 12 emitting blue-green light, an orange light-emitting diode 13 emitting orange light and a red light-emitting diode 14 emitting red light.

A substrate-fluorescent LED having a fluorescent-impurity doped substrate and an epitaxial emission structure including an active layer and being made on the substrate. The epitaxial emission structure emits blue or green light corresponding to the band gap of the active layer. The substrate absorbs a part of the blue or green light and makes fluorescence of a longer wavelength. Neutral color light or white light is emitted from the LED. The fluorescent substrate is n-AlGaAs(Si dope), GaP(Zn+O dope), ZnSe(Cu+I, Ag+I, Al+I dope), GaN(O.C.Va(N) dope) or so.

A white light emitting device including: a blue light emitting diode chip having a dominant wavelength of 443 to 455 nm; a red phosphor disposed around the blue light emitting diode chip, the red phosphor excited by the blue light emitting diode chip to emit red light; and a green phosphor disposed around the blue light emitting diode chip, the green phosphor excited by the blue light emitting diode chip to emit green light, wherein the red light emitted from the red phosphor has a color coordinate falling within a space defined by four coordinate points (0.5448, 0.4544), (0.7079, 0.2920), (0.6427, 0.2905) and (0.4794, 0.4633) based on the CIE 1931 chromaticity diagram, and the green light emitted from the green phosphor has a color coordinate falling within a space defined by four coordinate points (0.1270, 0.8037), (0.4117, 0.5861), (0.4197, 0.5316) and (0.2555, 0.5030) based on the CIE 1931 color chromaticity diagram.

A white light LED is described that uses an LED die that emits visible blue light in a wavelength range of about 450-470 nm. A red phosphor or quantum dot material converts some of the blue light to a visible red light having a peak wavelength between about 605-625 nm with a full-width-half-maximum (FWHM) less than 80 nm. A green phosphor or quantum dot material converts some of the blue light to a green light having a FWHM greater than 40 nm, wherein the combination of the blue light, red light, and green light produces a white light providing a color rendering of Ra,8>90 and a color temperature of between 2500K-5000K. Preferably, the red and green converting material do not saturate with an LED die output of 100 W / cm2 and can reliably operate with an LED die junction temperature over 100 degrees C.

A novel system and method of integrating an RF emissions device, such as a radar system (103A), within a traffic control indicator (101) system. The system and method determines, using LFM-CW radar signals (201) and a multi-stage spectral processing algorithm (600), if one or more object / vehicle targets will enter an intersection and comprises receiving a radar echo response (203) indicating the object / vehicle target (104) is approaching the intersection, receiving range and velocity of the object / vehicle targets (104), and based on the receiving, determining if the object / vehicle target (104) will enter the intersection. The system and method can programmatically be configured to activate red-light-hold, green-light-extension, or left-turn-warning.

A light-emitting diode device, such as a blue, green, blue-green light-emitting diode, with a one-wire-bonding characteristic and the method of manufacturing the same have been disclosed. The light-emitting diode device has a GaN-based semiconductor laminated structure formed on an insulating substrate. The GaN-based semiconductor laminated structure includes an n-type layer on its bottom side, a p-type layer on its top side, and an active layer, for generating light, sandwiched between the n-type and p-type layers. An annular isolation portion such as a trench or a high resistivity portion formed by ion implantation is formed in the GaN-based semiconductor laminated structure to separate the p-type layer into a central p-type layer and a peripheral p-type layer and to separate the active layer into a central active layer and a peripheral active layer. A p-type electrode is formed on the central p-type layer without electrically connecting to the peripheral p-type layer. A conductive layer is coated to cover the sidewalls and the bottom surface of the insulating substrate and to ohmically contact with the n-type layer. Preferably, an adhesion layer is sandwiched between the sidewalls and the bottom surface of the insulating substrate and the conductive layer to enhance the adhesive property. According to the present invention, the conductive layer may be formed as a mirror-like reflector or a light-transmissive layer.

A high efficiency and high brightness multi-active layer tunneling regenerated white color semiconductor light emitting diode having a p type electrode 1, a monolithic red light cell 14, a tunnel junction 9, a monolithic green light 15 and blue light cell 16 (or a monolithic cyan light cell 19), wherein each of said cells are electrically connected by tunnel junctions 9, and the red cell physically connected with blue and green cell (or cyan cell) by wafer bonding layer 8. The lights from each cell synthesize white color light. The white light emitting diode only has one time optical-electrical conversion, so the quantum efficiency is high. Moreover, the white LED totally made from semiconductor materials, the lifetime of the white LED lamp is not limited by the relatively short lifetime of fluorescent material.

The Personnel And Vehicle Identification System Using Three Factors of Authentication (PAVIS-3) invention is a novel approach that combines the three authentication factors using contactless token, contactless biometric, and the unique position of said biometric presented by a person to allow rapid authentication and access to a base or building. This invention has the real potential to reduce manpower at base gates, building, and greatly improve system security. A vehicle with a contactless token such as an RFID, proximity chip, or barcode, approaches an entry lane at a base, the contactless token is read, verified, (first factor) queuing the individual's file with a biometric template and personal identification position. The biometric image is taken, reduced to a template, compared with the template in the database and if matched (second factor) the body position is examined to see if it matches the personal identification position (third factor) as a normal or covert distressed signal. If normal the vehicle is given a green light, if any match fails the vehicle is directed to the visitor's lane.

A full-color organic display for displaying a color image, including an array of pixels arranged in repeating patterns, wherein each pixel has red, green, and blue light-emitting subpixels, and wherein each red and green light-emitting subpixel contains only one EL unit, while each blue light-emitting subpixel contains more than one vertically stacked EL unit.

LED based lamps and bulbs are disclosed that comprise a pedestal having a plurality of LEDs, wherein the pedestal at least partially comprises a thermally conductive material. A heat sink structure is included with the pedestal thermally coupled to the heat sink structure. A remote phosphor is arranged in relation to the LEDs so that at least some light from the LEDs passes through the remote phosphor and is converted to a different wavelength of light. Some lamp or bulb embodiments can emit a white light combination of light from the LEDs and the remote phosphor. These can include LEDs emitting blue light with the remote phosphor having a material that absorbs blue light and emits yellow or green light. A diffuser can be included to diffuse the emitting light into the desired pattern, such as omnidirectional.

A color, transmissive LCD uses a backlight that supplies a uniform blue light to the back of the liquid crystal layer in an LCD. The blue light, after being modulated by the liquid crystal layer, is then incident on the back surface of phosphor material located above the liquid crystal layer. A first phosphor material, when irradiated with the blue light, generates red light for the red pixel areas of the display, and a second phosphor material, when irradiated with the blue light, generates green light for the green pixel areas of the display. No phosphor is deposited over the blue pixel areas.

A solar cell is disclosed to include a single crystal silicon chip, an electrode system, a glass plate cover, a polymer film set between the single crystal silicon chip and the glass plate cover, and a spectrum converter containing an inorganic phosphor, which absorbs radiation in purple, blue and green light of the Sun's solar radiation and converts the absorption into a photoluminescent light in yellow, orange-yellow and infrared area in the electromagnetic spectrum. The architecture characteristic of the solar cell increases the efficiency by about 20%.

A liquid crystal display includes, among others, a light diffusion layer comprising a color conversion media layer and a non-conversion layer arranged on the second substrate and a backlight assembly to supply light to the first substrate and the second substrate. The backlight assembly supplies various wavelengths of lights, including blue light or UV ray. The blue rights through the liquid crystal layer enters the color conversion media layers and may generates red lights and green lights. In this case, blue lights go through non-conversion layer and diffuse and scatter out blue lights. The UV rays through the liquid crystal layer enters the color conversion media layers and may generates red light, green lights and blue lights.

A white light emitting device including: a blue LE chip having a dominant wavelength of 430 to 455 nm; a red phosphor disposed around the blue light emitting diode chip, the red phosphor excited by the blue light emitting diode chip to emit red light; and a green phosphor disposed around the blue light emitting diode chip, the green phosphor excited by the blue LED chip to emit green light, wherein the red light emitted from the red phosphor has a color coordinate falling within a space defined by four coordinate points (0.5448, 0.4544), (0.7079, 0.2920), (0.6427, 0.2905) and (0.4794, 0.4633) based on the CIE 1931 chromaticity diagram, the green light emitted from the green phosphor has a color coordinate falling within a space defined by four coordinate points (0.1270, 0.8037), (0.4117, 0.5861), (0.4197, 0.5316) and (0.2555, 0.5030) based on the CIE 1931 color chromaticity diagram, and the red phosphor includes a phosphor represented by (Sr, Ba, Ca)AlSiN3:Eu and the green phosphor includes a phosphor represented by (Sr, Ba, Ca)2SiO4:Eu.

A light source device capable of suppressing generation of color unevenness, and a display device using the same are provided. The light source device 1 is provided with a plurality of excitation light sources 11 which are arranged at prescribed intervals D on a substrate 10 and emit blue light, and a phosphor layer 12 which converts part of the blue light emitted from the excitation light sources into red light and green light and arranged at a distance from the excitation light sources 11 to oppose the substrate 10. Fluctuation of intensity of each color light due to nonuniform application of the phosphor layer is difficult to occur as compared with a configuration in the past where the phosphor layer is formed adjacent to each excitation light source.

A white LED module includes a circuit board, a blue LED chip disposed on the circuit board, a green light source of an LED chip or phosphor disposed on the circuit board, and a red light source of an LED chip or phosphor disposed on the circuit board. At least one of the green and red light sources is a phosphor, which is excited by the blue LED chip to radiate. The blue LED chip emits light in a triangular region defined by color coordinates (0.0123, 0.5346), (0.0676, 0.4633) and (0.17319, 0.0048), the green light source emits light in a triangular region defined by color coordinates (0.025, 0.5203), (0.4479, 0.541) and (0.0722, 0.7894), and the red light source emits light in a triangular region defined by color coordinates (0.556, 0.4408), (0.6253, 0.3741) and (0.7346, 0.2654).

A device and method for emitting output light of a desired color utilizes green-emitting Thiogallate phosphor material and red-emitting SrCaS:Eu phosphor material to convert some of the original light emitted from a light source of the device to a longer wavelength light in order to produce the desired output light. The green-emitting Thiogallate phosphor material includes at least one of CaGa2S4:Ce phosphor and BaGa4S7:Eu phosphor. The device and method can be used to produce white light or other mixed color light using the light source, which may be a blue-green light emitting diode (LED) die.

The invention provides a method of monitoring a subject's neurological condition. In some embodiments, the method includes the steps of analyzing a physiological signal (such as an EEG) from a subject to determine if the subject is in a contra-ictal condition; and if the subject is in a contra-ictal condition, providing an indication (e.g., to the subject and / or to a caregiver) that the subject is in the contra-ictal condition, such as by activating a green light or other visible output. In some embodiments, if the subject is in a pro-ictal condition, the method includes the step of providing an indication (such as a red light) that the subject is in the pro-ictal condition. The invention also provides neurological system monitors.

In a three-dimensional image display apparatus provided with a shading mask with a minute aperture array in front of a color display device, the minute apertures are provided with color filters, a setting is provided so that the visual angles between the respective centers of the red-light transmitting part, green-light transmitting part, and blue-light transmitting part of the color filters become equal, in an identical parallax image pixel region, to the visual angles between the respective centers of the red, green, and blue sub-pixels of the color display device, the respective red, green, and blue sub-pixels are made so as to be always displayed in a lighted condition at a fixed area ratio, thus color reproduction wherein brightness ratio of the three primary colors in respective parallax image pixels is maintained at an appointed value is carried out.

A color laser display apparatus which contains a laser light source which emits ultraviolet laser light, a modulation unit which modulates the ultraviolet laser light, a display unit which includes a fluorescent screen, and a scanning unit which two-dimensionally scans the fluorescent screen with the ultraviolet laser light. The fluorescent screen includes, for each pixel, red fluorescent material which emits red light in response to the ultraviolet laser light, green fluorescent material which emits green light in response to the ultraviolet laser light, and blue fluorescent material which emits blue light in response to the ultraviolet laser light. The laser light source may be, for example, a semiconductor laser or a fiber laser.

A color laser display apparatus which contains a laser light source which emits ultraviolet laser light, a modulation unit which modulates the ultraviolet laser light, a display unit which includes a fluorescent screen, and a scanning unit which two-dimensionally scans the fluorescent screen with the ultraviolet laser light. The fluorescent screen includes, for each pixel, red fluorescent material which emits red light in response to the ultraviolet laser light, green fluorescent material which emits green light in response to the ultraviolet laser light, and blue fluorescent material which emits blue light in response to the ultraviolet laser light. The laser light source may be, for example, a semiconductor laser or a fiber laser.

Methods for treating periodontal disease and other diseased tissues that utilize a dye composition and laser energy. The laser energy (typically about 450 nm to about 600 nm) heats and destroys the diseased tissue and bacteria, while the dye composition causes the laser energy to be selectively absorbed by the targeted tissue. An argon gas laser that emits blue-green light may be used in conjunction with a red-orange dye that strongly absorbs light energy emitted by the argon gas laser. An 810 diode laser may be used in conjunction with the argon laser in order to provide additional heating properties.

An aspect of an embodiment or partial embodiment of the present invention (or combinations of various embodiments in whole or in part of the present invention) comprises, but not limited thereto, a method and system (and related computer program product) for continually assessing the risk of hypoglycemia for a patient and then determining what action to take based on that risk assessment. A further embodiment results in two outputs: (1) an attenuation factor to be applied to the insulin rate command sent to the pump (either via conventional therapy or via open or closed loop control) and / or (2) a red / yellow / green light hypoglycemia alarm providing to the patient an indication of the risk of hypoglycemia. The two outputs of the CPHS can be used in combination or individually.

A light-emitting device of a light-emitting diode (LED) and a manufacture method thereof are provided. The light-emitting device includes a post-like metal material, a printed circuit board, conductors, insulators, light-emitting diodes, wires, and an encapsulating material. The light-emitting device has through holes, in which conductors are disposed and surrounded with the insulators. One end of each conductor is connected to the printed circuit board to form a composite structure heat-dissipation substrate. The light-emitting diodes are disposed on the post-like metal material, connected to the conductors via the wires, and encapsulated by the encapsulating material. Furthermore, the light-emitting diodes, the wires, and the encapsulating material can be combined into a light-emitting unit. Moreover, red, blue, and green light-emitting diodes can be combined and the color of output light thereof can be adjusted by controlling the input signal.

A red light source comprising an array of LEDs 102R that emit light of a red color, a green light source comprising an array of LEDs 102G that emit light of a green color, and a blue light source comprising an array of LEDs 102B that emit light of a blue color are deployed about the periphery of a dichroic prism 101. A liquid crystal display element is illuminated by a light source device configured such that the light from the respective light sources is synthesized into white light by the dichroic prism, and projection type liquid crystal display devices and the like are configured.