63 results about "Diode matrix" patented technology

A light emitting diode matrix array is used as the light source of a picture projection system. Each cell of the LED matrix array has an assembly of one or more red, green and blue LEDs with metal lead structures to individually energize these LEDs. The lights emitted from the LED assembly is transmitted through one or more programmable liquid crystal plate or digital micro-mirror device to control the light transmission, and then merged together for projection as a pixel onto a screen.

Disclosed is a manufacturing method for a structure of a wafer level light emitting diode matrix. The method includes the following steps: step1, wherein an epitaxial wafer is taken; step2, wherein a light emitting diode unit module is manufactured on the epitaxial wafer to form a light emitting diode matrix, and the light emitting diode unit module comprises a plurality of light emitting diodes; step3, wherein fluorescent powder is coated on the light emitting diodes in the light emitting diode unit module, the light emitting diodes motivates the fluorescent powder to produce light with different wavelengths, so that output light and color of the light emitting diodes are adjusted; step4, wherein a substrate is taken; step5, wherein epitaxial wafers with light emitting diode matrixes are fixed on the substrate in sequence, and the epitaxial wafers are electrically connected with the substrate, so that the manufacture of the structure is finished. The method can be combined with a manufacturing technique of the light emitting diode and a packaging technique of a chip, a technical path is simplified, and technical cost is reduced. With the technique, the size and the space between the light emitting diodes can be accurately controlled.

The invention relates to an inorganic light-emitting diode matrix display device. The device comprises a plurality of pixels, wherein the plurality of pixels are arranged on a crystal substrate, comprise an inorganic light-emitting diode display device and can comprise an active driving device; and light emitted by the inorganic light-emitting diode display device is transmitted through the substrate. The matrix display device can also comprise two substrates; the pixels on one substrate comprise the inorganic light-emitting diode display device, and the pixels on the other substrate comprise a driving device; and corresponding luminous pixels and pixel driving devices of the two substrates are connected with each other through a conductive material. The light-emitting diode matrix display device can realize single-color display or multi-color display and can be effectively applied to projecting devices and in the micro-display field.

The invention discloses a transparent display screen, which comprises a transparent conductive material, a transparent base and a display unit, wherein the transparent conductive material is used for conducting a component in the transparent display screen; the transparent base is connected with the transparent conductive material to serve as a base material of the transparent display screen, and the display unit is connected with the transparent conductive material for displaying the content of the transparent display screen. The transparent display screen utilizes a low-cost transparent conductive film, and the conductive film is divided into a plurality of areas by an etching technology; a surface-mounting light emitting diode is fixed on the transparent conductive base through transparent crystalline solid rubber to form a light emitting diode matrix, and the transparent display is achieved by external circuit drive. The invention also discloses a manufacture method of the transparent display screen.

The invention relates to a device and method for monitoring the abnormal state of a light-emitting diode. The device is connected to both ends of the light-emitting diode and can be used for monitoring the abnormal state of the light-emitting diode by detecting the change of the working voltage of the light-emitting diode. The device and the method can be used for monitoring the working voltage VF of each light-emitting diode in a light-emitting diode matrix in real time, judging whether the working voltage VF is higher than a determined high threshold voltage VH or not and whether the working voltage VF is lower than a determined low threshold voltage VL or not, and accordingly judging whether a current light-emitting diode abnormally works or not, or short circuit or open circuit faults are already generated or not; and in addition, the positions of the light-emitting diodes which abnormally work and go wrong can be positioned quickly under the working state of the light-emitting diode matrix so as to facilitate maintenance and replacement.

A method for the production and formation of microscopic semiconductor light emitting diodes Is set out. The method comprises the steps of: producing a semiconductor light emitting device (100) including a pn-junction (24) and metallization layers (6, 7); applying an etching mask (9-11) with a preset structure on one side of the semiconductor device (100), whereby the masked areas of the arrangement form and correspond to the diodes to be formed (30); applying a carrier (8, 12) on the other side of the semiconductor device (100); vertically etching the semiconductor material in the openings of the etching mask (9-11) to the carrier (8, 12) and thereby producing a diode arrangement containing a multiple number of diodes (30) below the masked areas. In addition, the method further comprises: removing the etching mask (9-11); providing an accommodating device (20) containing slots (22) with an arrangement and form that correspond to the numerous diodes, whereby the slots are suited for the reception of the diodes (30) therein; engaging the diode arrangement into the accommodating device (20); and removing of the carrier (8, 12). This method can be used for the production of a LED display device having a high pixel density.

LEDs of a light matrix display are mounted between two metal frames. Each frame has air ducts to circulate air around the LEDs, thereby removing the heat generated in the LEDs and allowing higher intensity light to be emitted.

An eyewear with a pair of light emitting diodes (LED) matrices is an apparatus that enhances the aesthetic appeal of the eyewear by illuminating different patterns and letterings with the pair of LED matrices. A left lens and a right lens each have an LED matrix, which traverse through and protrude out of their respective lens. Both LED matrices are electronically connected to a programmable microcontroller, which is able to turn on / off each individual LED in order to create the patterns and letterings on the LED matrices. The microphone and VU meter also allows the LED matrices to display patterns and lettering that relate to the music or sounds around the apparatus. Each individual LED for both LED matrices are properly spaced apart from each other so that visibility is not significantly reduced while wearing the apparatus.

The invention relates to a protector chip of a light emitting diode and production technology thereof. Through employing a narrow substrate base region width structure, bulk voltage drop is decreased, switching speed is raised, and switching loss is reduced; a diffusion method that gas carries a shallow N+ junction of liquid phosphor source is employed, depth and concentration gradient of a diffused junction are controlled well, stability of breakdown voltage is increased with good elasticity, a device is conducted rapidly, and a role of protecting the light emitting diode is played; evenness and homogeneity of the diffused junction are increased, and reliability and antisurge capability of a protection tube are raised; electrophoretic glass passivation technology is employed, stability of trigger voltage and breakdown voltage of the protection tube is raised, the protection tube of the light emitting diode has the characteristics of fast switching speed, strong automatic recovery capability of circuit power failure and low loss, when a light emitting diode is in a open circuit state, conduction can be carried out rapidly, which does not cause collapse of a whole light emitting diode matrix, a circuit can continue to work, and a reliable illumination function is provided for a high frequency highlight brightness circuit.

The present invention relates to an information input panel using the light emitted diode (LED) matrix. The panel includes the LED matrix and a control circuit. The LED matrix includes N×M LEDs. The control circuit includes N pieces of first terminal and M pieces of second terminal, wherein the ith first terminal thereof is coupled to first terminals of the LEDs in the ith row and the jth second terminal thereof is coupled to second terminals of the LEDs in the jth column. In the kth detecting period, the control circuit detects the reverse photoelectric currents of each LED from the second terminals through the kth first terminal to determine whether LED in the kth row is lighted up or not, wherein “M”, “N”, “i”, “j”, “k” are nature numbers and 0<i<=M; 0<j<=N; 0<k<=M.

The embodiment of the invention discloses a test device and test system for an electric vehicle thermal management system. The system comprises a button array which is used for receiving a user-triggered test instruction, a control module which is used for converting a test instruction into a corresponding execution piece operation command of the thermal management system, a control area network (CAN) communication module which is used for encapsulating the execution piece operation command of the thermal management system, and a light emitting diode matrix which is used for displaying a feedback result. A first CAN packet is sent to an electric vehicle controller through an onboard diagnostics (OBD) interface, so that the electric vehicle controller operating in a test mode analyzes the execution piece operation command of the thermal management system from the first CAN packet and sends the execution piece operation command of the thermal management system to a thermal management system execution piece. The feedback result provided by the thermal management system execution piece is received by an OBD interface from the electric vehicle controller. According to the invention, the test convenience can be improved.

An eyewear with a pair of light emitting diodes (LED) matrices is an apparatus that enhances the aesthetic appeal of the eyewear by illuminating different patterns and letterings with the pair of LED matrices. A left lens and a right lens each have an LED matrix, which traverse through and protrude out of their respective lens. Both LED matrices are electronically connected to a programmable microcontroller, which is able to turn on / off each individual LED in order to create the patterns and letterings on the LED matrices. The microphone and VU meter also allows the LED matrices to display patterns and lettering that relate to the music or sounds around the apparatus. Each individual LED for both LED matrices are properly spaced apart from each other so that visibility is not significantly reduced while wearing the apparatus.

A scene simulation lighting device comprises a light emitting device, an environmental brightness sensing unit and a controller, wherein the light emitting device is provided with a light emitting diode matrix, the light emitting diode matrix comprises light emitting diodes with various colors and can generate light rays with different colors and illumination modes, the environmental brightness sensing unit is used for sensing a light ray of a natural environment, the controller is provided with a simulation control program, and the simulation control program can be used for dimming brightness of the light emitting diodes with different colors in the light emitting diode matrix and controlling the light emitting diodes to act according to the light ray of the environment sensed by the environmental brightness sensing unit. By the scene simulation lighting device, the light rays of different scenes such as sky blue, cloud floating and sunlight and the illumination modes can be simulated, and a lighting effect approaching the natural environment is further provided.

The invention discloses an equipment shift monitoring and alarm device. The device comprises: a shift detection unit, a vehicle monitoring terminal and a ground monitoring terminal. The shift detection unit and the vehicle monitoring terminal carry out data transmission through a wireless mode. The vehicle monitoring terminal and the ground monitoring terminal carry out the data transmission through the wireless mode. The shift detection unit comprises a laser emission head, a shift detection module, a wireless data transmission module and an external antenna. The shift detection module is formed by a photosensitive diode matrix plate, a master control circuit board and a shift wireless data transmission module, wherein the photosensitive diode matrix plate, the master control circuit board and the shift wireless data transmission module are successively connected and arranged in a shell. The vehicle monitoring terminal comprises a PDA host and a terminal wireless data transmission module. A CDMA module and an SIM card are embedded in the PDA host. The ground monitoring terminal comprises a computer which is equipped with a short message receiving module and monitoring software. By using the invention, generation of railway transport accidents can be avoided; equipment transport safety can be guaranteed; economic losses caused by the accidents can be reduced; monitoring capability of escorts can be raised; labor intensity can be reduced.

The invention provides a multispectral light source and a fundal imaging system and fundal imaging method, wherein the multispectral light source includes one or more lighting units and a control unit; each lighting unit includes a light-emitting diode matrix; each light-emitting diode matrix emits light of various wavelengths; the control unit converts a control command from a central control unit into a control signal to trigger the specified light-emitting matrix, in the specified lighting unit, to emit light of set wavelength and set energy, thus outputting multispectral light. The multispectral light source and the fundal imaging system and fundal imaging method have the advantages that multispectral light having the parameters, such as shape, wavelength, energy and flashing time, meet users' needs can be acquired herein, the multispectral light of good properties is provided for the fundal imaging system or other imaging and lighting systems, imaging capacity is improved, and images are more vivid.

A projector includes a diode light source for a projector. The light source comprises at least first, second, and third diode matrices respectively delivering at least first, second, and third light bundles at separate wavelengths and of determined dimensions. A first dichroic plate forms a first combined light bundle CLC1 from the first and second light bundles, a second dichroic plate forming a second combined light bundle CLC2 from the first combined light bundle and the third light bundle, and an off-axis parabolic mirror for receiving the second combined light bundle CLC2 and focusing it on a determined focal point forming an inlet point for a single optical fiber.

The invention provides a lamp for a refrigerating chamber, which comprises a first light emitting diode matrix and a second light emitting diode matrix which are arranged on an air flue shell of the refrigerating chamber and a lamp shade for covering the first light emitting diode matrix and the second light emitting diode matrix on the air flue shell, wherein light emitting sides of the first light emitting diode matrix and the second light emitting diode matrix are opposite and incline towards the air flue shell. The invention also provides a refrigerator with the refrigerating chamber, and the lamp for the refrigerating chamber is arranged in the refrigerating chamber. Therefore, asymmetrical lightspots are prevented from occurring on the lamp shade, and light rays of a light emitting diode are reflected by the air flue shell and are incident to the lamp shade, so that the light rays can be irradiated uniformly. In addition, due to the arrangement mode of the first light emitting diode matrix and the second light emitting diode matrix, the distance between the light emitting diode and the lamp shade is reduced, so that the occupation space of an illuminating lamp is reduced correspondingly to enlarge the utilization space of the refrigerating chamber.

The present invention relates to an information input panel using the light emitted diode (LED) matrix. The panel includes the LED matrix and a control circuit. The LED matrix includes N×M LEDs. The control circuit includes N first terminals and M second terminals, wherein the ith first terminal thereof is coupled to first terminals of the LEDs in the ith row and the jth second terminal thereof is coupled to second terminals of the LEDs in the jth column. In the kth detecting period, the control circuit detects the reverse photoelectric currents of each LED from the second terminals through the kth first terminal to determine whether LED in the kth row is lighted up or not, wherein “M”, “N”, “i”, “j”, “k” are nature numbers and 0<i<=M; 0<j<=N; 0<k<=M.

The invention relates to a light emitting diode matrix lamp optical system. An AC / DC rectifier is arranged for converting an alternating current to a direct current and providing the current to a switch type voltage-reducing integrated circuit; the switch type voltage-reducing integrated circuit is arranged for reducing the voltage of the inputted current to be a working voltage of rechargeable batteries and providing a constant current so as to charge the rechargeable batteries; the rechargeable batteries can provide a power source to the light emitting diode when the power is cut off; a touch switch is arranged for automatically open the switch type voltage-reducing integrated circuit after the power is cut off; the switch type voltage-reducing integrated circuit increases the voltage of the rechargeable batteries to be an LED working voltage and outputs the voltage to a voltage-stabilizing circuit; and the voltage-stabilizing circuit is arranged for converting the voltage input by the switch type voltage-reducing integrated circuit to a stable direct current power source and providing to the light emitting diode matrix so as to illuminate the light emitting diode matrix. The system of the invention can be applied to the illumination devices in public and plays a positive role in decreasing the burden on society in the peak period of using electrify in city and lowering the cost.

The present invention is a method of incorporating a non-volatile memory into a CMOS process that requires four or fewer masks and limited additional processing steps. The present invention is an epi-silicon or poly-silicon process sequence that is introduced into a standard CMOS process (i) after the MOS transistors' gate oxide is formed and the gate poly-silicon is deposited (thereby protecting the delicate surface areas of the MOS transistors) and (ii) before the salicided contacts to those MOS transistors are formed (thereby performing any newly introduced steps having an elevated temperature, such as any epi-silicon or poly-silicon deposition for the formation of diodes, prior to the formation of that salicide). A 4F2 memory array is achieved with a diode matrix wherein the diodes are formed in the vertical orientation.

A wrist device includes a curved body arranged to fit the wrist device around a user's wrist, an activity tracker circuitry configured to measure physical activity of the user of the wrist device, a processing circuitry configured to acquire physical activity-related measurement data from the activity tracker circuitry and to process the physical activity-related measurement data into physical activity-related metric characterizing the physical activity of the user, and a user interface element configured to display the physical activity-related metric. The user interface element includes a light emitting diode matrix layer including a plurality of light emitting diodes arranged in a matrix form, and a fluorescent layer configured to alter the wavelength of the light emitted by the light emitting diode matrix layer.

A passive micro light-emitting diode matrix device with uniform luminance includes a micro light-emitting diode array and an external circuit assembly. The micro light-emitting diode array comprises asubstrate, a plurality of micro light-emitting arrays which are distributed on the substrate at intervals along the Y direction, and an insulating layer for the arrays. Each micro-light-emitting array is sequentially provided with a first layer, a plurality of spaced light-emitting layers, a second layer, a first inner electrode layer and a second inner electrode layer, wherein the first layer extends in the X direction, and the second inner electrode layer extends in the first layer and is provided with a base part surrounding the light-emitting layers at intervals and a protruding part protruding from the base part. The array covers the substrate with an insulating layer and exposes the first and second inner electrode layers. The external circuit assembly comprises a carrier plate facing the substrate, a first external circuit and a second external circuit which are spaced in the Y direction and the X direction and extend to the carrier plate in the X direction and the Y direction,a circuit insulating layer exposing the first external circuit and the second external circuit, and an electrical bonding unit bonded to the first external circuit, the second external circuit, the first internal electrode layer and the second internal electrode layer. By means of the external circuit assembly on the carrier plate, the area of the array arrangement surface can be effectively utilized.

The disclosure relates to an optoelectronic device comprising: a plurality of separate first electrodes that extend longitudinally in parallel to an axis A1, each first electrode being formed of a longitudinal conductive portion and a conductive nucleation strip, the longitudinal conductive portion having an electrical resistance lower than that of the conductive nucleation strip; a plurality of diodes; at least one intermediate insulating layer covering the first electrodes; and a plurality of separate second electrodes in the form of transparent conductive strips that extend longitudinally in contact with second doped portions, and are electrically insulated from the first electrodes by means of the intermediate insulating layer, parallel to an axis A2, the axis A2 not being parallel to axis A1.

A process for manufacturing an optoelectronic device having a diode matrix with semiconductor stacks involves providing a growth substrate having a support substrate coated with a nucleation layer defining a nucleation surface. A dielectric layer is deposited on the nucleation surface. A plurality of through-holes, extending to the nucleation surface, are formed in the dielectric layer. The nucleation layer, located in the through-holes, is etched to free up an upper surface of the support surface and expose a lateral surface of the nucleation layer forming a lateral nucleation surface. A dielectric region is formed extending in the support substrate such that, during a subsequent epitaxial growth stage, each first doped portion is formed especially from the lateral nucleation surface. In the through-holes and from the nucleation surface, the semiconductor stacks are epitaxially grown such that at least the first doped portions and active zones thereof are located in the through-holes.

A process for manufacturing an optoelectronic device having a diode matrix with semiconductor stacks involves providing a growth substrate having a support substrate coated with a nucleation layer defining a nucleation surface. A dielectric layer is deposited on the nucleation surface. A plurality of through-holes, extending to the nucleation surface, are formed in the dielectric layer. The nucleation layer, located in the through-holes, is etched to free up an upper surface of the support surface and expose a lateral surface of the nucleation layer forming a lateral nucleation surface. A dielectric region is formed extending in the support substrate such that, during a subsequent epitaxial growth stage, each first doped portion is formed especially from the lateral nucleation surface. In the through-holes and from the nucleation surface, the semiconductor stacks are epitaxially grown such that at least the first doped portions and active zones thereof are located in the through-holes.

Displays for information exist, which appear to emerge out of a solid piece of metal. In order to obtain an aluminium-like and translucent material, according to prior art glass has aluminium vapour deposited onto the front surface, and a diode matrix display is hidden behind this translucent material while inactive, whereas it becomes visible when lit. In order to avoid the use of glass and to make the metal surface and the display surface indistinguishable from each other under all lighting conditions, the surface is made out of the piece of material constituting the surrounding parts. A cavity is formed from behind, and the bottom of said cavity is made very thin and hence translucent by etching or a similar material removing process. Oxide layers support this translucent layer, and an internal support is provided in the cavity, said support also carrying the sources of light.

The embodiment of the invention discloses a micron light-emitting diode matrix display, which comprises a plurality of pixel circuits, wherein each pixel circuit comprises a micron light-emitting diode, and the micron light-emitting diodes are connected to a driving power supply through a first switch and a second switch; a first scanning line connected to the control end of a third switch; a dataline connected to the control end of a second switch through the third switch; a second scanning line connected to the control end of a fourth switch; a third scanning line connected to the control end of the first switch and used for cutting off the first switch at the optical communication receiving time so as to cut off the power supply of the driving power supply to the micrometer light-emitting diode; and a photosensitive unit connected to the data line through the fourth switch so as to transmit a photosensitive signal to the data line when the fourth switch is switched on. According tothe technical scheme provided by the embodiment of the invention, the micrometer light emitting diode and the photosensitive unit are arranged, so that the technical effects of transmitting and receiving optical signals are achieved.