248 results about "Dot-matrix display" patented technology

A dynamic transaction card that includes a transaction card having a number of layers, each of which may be interconnected to one another. For example, a dynamic transaction card may include an outer layer, a potting layer, a touch sensor layer, a display layer (including, for example, LEDs, a dot matrix display, and the like), a microcontroller storing firmware, Java applets, Java applet integration, and the like, an EMV chip, an energy storage component, one or more antenna (e.g., Bluetooth antenna, NFC antenna, and the like), a power management component, a flexible printed circuit board (PCB), a chassis, and/or a card backing layer.

A dynamic transaction card that includes a transaction card having a number of layers, each of which may be interconnected to one another. For example, a dynamic transaction card may include an outer layer, a potting layer, a sensor layer that may be utilized to activate a dynamic transaction card by authenticating the card user as authorized to use the card through user authentication input recognition, which may be gesture and voice recognition processing, a display layer (including, for example, LEDs, a dot matrix display, and the like), a microcontroller storing firmware, Java applets, Java applet integration, and the like, an EMV™ chip, an energy storage component, one or more antenna (e.g., Bluetooth™ antenna, NFC antenna, and the like), a power management component, a flexible printed circuit board (PCB), a chassis, and/or a card backing layer.

A dynamic transaction card that includes a transaction card having a number of layers, each of which may be interconnected to one another. For example, a dynamic transaction card may include an outer layer, a potting layer, a sensor layer that may detect and identify a card free fall and/or subsequent impact, which may trigger a microcontroller to send a mobile notification to a cardholder notifying the user that the card has been dropped, and/or may disable or deactivate the card and/or a user account associated with the card, a display layer (including, for example, LEDs, a dot matrix display, and the like), a microcontroller storing firmware, Java applets, Java applet integration, and the like, an EMV™ chip, an energy storage component, one or more antenna (e.g., Bluetooth™ antenna, NFC antenna, and the like), a power management component, a flexible printed circuit board (PCB), a chassis, and/or a card backing layer.

A high-rise building with a large scale dot-matrix display device is disclosed. The glass panels arranged in rows and columns form a curtain wall structured transparent outer wall 12 extending over an exterior of a building 10. Each panel is installed apart from end portions of floor slabs to form a void space therebetween. A plurality of louver structured modules 22 are arranged within the void space in rows and columns to form a large scale display area. Each module 22 has a louver-like structure formed of a plurality of posts 24 arranged in substantially parallel relationship and a plurality of parallel, uniformly spaced beams 26 connecting said adjacent posts 24. A plurality of LED combination lamps 28 are mounted on each beam 26 at uniform pitches as those between the adjacent beams 26. The LEDs are driven by drive circuits disposed in each beam 26. The vertical guide members 44 are fixed to the end portions of the floor slabs 20. The guide members 44 are arranged substantially in parallel relationship so that the modules 22 are supported between the adjacent guides 44 at the both lateral sides thereof. A plurality of vertical mullion members 48 fixed to the vertical guide members 44 as spaced apart from each of the vertical guides 44, so that the glass panels 12 are supported therebetween.

A portable noncontact thermometer comprising a hand-held housing defining an aperture for ingress of incident thermal energy from a target location. A thermometer module includes a noncontact thermal energy detector impinged by the incident thermal energy. The thermometer module further includes a microcontroller operative to interpret electrical signals derived from an output of the noncontact thermal energy detector so as to determine temperature at the target location. A graphical display device, such as an LCD dot matrix display device, is fixed with respect to the housing. The display device is capable of providing a graphical user interface having multiple screens variously showing numbers, text and functional icons. Preferably, the screens will display function tabs located adjacent to corresponding buttons on the housing. The tabs will change depending on the varying function that may be implemented by pressing a respective button. The thermometer also includes circuitry, which include the microcontroller, in electrical communication with the graphical display device so as to produce the graphical user interface.

A dynamic transaction card that includes a number of layers, each of which may be interconnected to one another. For example, a dynamic transaction card may include an outer layer, a potting layer, a sensor layer, a display layer (including, for example, LEDs, a dot matrix display, and the like), a microcontroller/microprocessor storing firmware, Java applets, Java applet integration, and the like, an EMV processor, an energy storage component, one or more antenna (e.g., Bluetooth antenna, NFC antenna, and the like), a power management component, a flexible printed circuit board (PCB), a chassis, and/or a card backing layer. A display layer may include enhanced features such as the use of LED display components as a photosensor.

An LED module A1 includes LED chips 3R, 3G, 3B, and a module substrate 1 on which the LED chips 3R, 3G, 3B are mounted. A wire 4R is connected to the LED chip 3R, and the LED chips 3G and 3B are arranged to face each other across the wire 4R. With this arrangement, the LED module A1 is reduced in size, and red light, green light and blue light are properly mixed.

To improve the display quality in the scanning of a dynamic drive system by effectively preventing the erroneous display of the display elements that are connected to the scanning electrodes during non-selection. The erroneous lighting cancel circuit 20 has a number of (or assemblies of) dummy diodes MD used for erroneous lighting prevention that is equal to the number of common lines CL, and along with the anode of each dummy diode MD0, MD1, MD2, MD3 being electrically connected to each corresponding common line CLO, CL1, CL2, CL3 by means of suitable wiring, the cathode of each dummy diode MD0, MD1, MD2, MD3 is electrically connected to a terminal of a reference potential (for example, ground potential) through the medium of a shared switch 22 and a constant current source circuit (active load) 24. The control signal SG reaches an active state (H level) only for a prescribed time during the scanning drive period for each horizontal scanning period, and the switch 22 is placed in the ON state. During this prescribed time, the positive charge that is present on each common line CLO, CL1, CL2, CL3 is discharged at a constant current to the ground side through the medium of each dummy diode MD0, MD1, MD2, MD3, the ON state of the switch 22, and the constant current source circuit 24.

An information recording apparatus for recording external information of the present invention including an input unit for transmitting a user's instruction to the information recording apparatus. The input unit includes a cross key and a dot matrix display arranged to be wedged in the crossing of the cross key.

A dynamic transaction card that includes a transaction card having a number of layers, each of which may be interconnected to one another. For example, a dynamic transaction card may include an outer protective layer, a core layer, a potting layer, a touch sensor layer, a display layer (including, for example, LEDs, a dot matrix display, and the like), a microcontroller storing firmware, Java applets, Java applet integration, and the like, an EMV™ chip, an energy storage component, one or more antennas (e.g., Bluetooth™ antenna, NFC antenna, and the like), a power management component, a flexible printed circuit board (PCB), a chassis, and/or a card backing layer, which may include a back protective layer. The antennas may be mounted on the protective layers, which may be laminated to the core layer, and connected to the core layer onto a printed circuit board (PCB) using conductive epoxies.

A dynamic transaction card that includes a number of layers, each of which may be interconnected to one another. For example, a dynamic transaction card may include an outer layer, a potting layer, a sensor layer, a display layer (including, for example, LEDs, a dot matrix display, and the like), a microcontroller/microprocessor storing firmware, Java applets, Java applet integration, and the like, an EMV processor, an energy storage component, one or more antenna (e.g., Bluetooth antenna, NFC antenna, and the like), a power management component, a flexible printed circuit board (PCB), a chassis, and/or a card backing layer. A display layer may include enhanced features such as the use of display components as a barcode generator.

The invention discloses a light emitting diode (LED) dot matrix display screen control method based on a mobile terminal. The method is used for controlling an LED dot matrix display screen through the mobile terminal in a display screen control system comprising the mobile terminal and the LED dot matrix display screen. A marking code is preset on the display screen; and the display screen control method comprises the following steps that: the display screen communicates with the mobile terminal; the mobile terminal sends the marking code and an identification code for requesting to control the display screen to the display screen; when the marking code of the display screen is the same as that sent by the mobile terminal, the display screen receives the identification code sent by the mobile terminal and checks whether a corresponding control relation exists between the mobile terminal and the display screen according to the identification code; and if so, the display screen receives display control of the mobile terminal, otherwise, the display screen refuses the display control of the mobile terminal. The LED dot matrix display screen control method based on the mobile terminal, which is easy to operate and facilitates management of the mobile terminal, is implemented. Furthermore, the invention also provides an LED dot matrix display screen control system based on the mobile terminal.

A dynamic transaction card that includes a number of layers, each of which may be interconnected to one another. For example, a dynamic transaction card may include an outer layer, a potting layer, a sensor layer, a display layer (including, for example, LEDs, a dot matrix display, and the like), a microcontroller/microprocessor storing firmware, Java applets, Java applet integration, and the like, an EMV processor, an energy storage component, one or more antenna (e.g., Bluetooth antenna, NFC antenna, and the like), a power management component, a flexible printed circuit board (PCB), a chassis, and/or a card backing layer. A display layer may include enhanced features such as the use of display components as a barcode generator.

The present invention relates to a module device of LED dot-matrix display. It includes a groap of base plate unit and a group of heat radiation unit, in which base plate unit can be composed of main base plate, first insulator, second insulator and a pair of terminal groups, and said heat radiation unit can be formed from heat-radiating body and a pair of fixed columns, and can utilize three different colour crystal grains of R, G and B to form a luminescent pixel. It has characteristics of multi-directional heat radiation, prolonged service life, raised luminescent brightness and increased resolution, etc.

The invention discloses an LED (light-emitting diode) dot matrix display screen and a combined dot matrix display screen. The dot matrix display screen comprises a heat-dissipating substrate, a PCB (printed circuit board), an uniformly-arrayed LED light-emitting unit, an imaging controller, a layout circuit conducting layer, a pervious-to-light packaging colloid for packaging LED chips, and a plastic plate forming the pervious-to-light packaging colloid for packaging the LED chips, wherein the LED light-emitting unit comprises more than one LED chips, guide lines and the pervious-to-light packaging colloid; the guide lines electrically connect the LED chips with the layout circuit conducting layer, and the pervious-to-light packaging colloid is used for packaging the LED chips; a hermetically-sealed outer cavity side wall which is hermetically connected with the plastic plate and the heat-dissipating substrate is arranged between the plastic plate and the heat-dissipating substrate; the heat-dissipating substrate, the hermetically sealed outer cavity side wall and the plastic plate defines a hermetically-sealed cavity, and the PCB is accommodated in the hermetically-sealed cavity; and the heat-dissipating substrate, the plastic plate and the pervious-to-light packaging colloid are directly contacted with the outside air. The dot matrix display screen disclosed by the invention has the advantages that of being simple in structure and low in cost and having good waterproof and heat-dissipating effects since the PCB is accommodated in the hermetically-sealed cavity formed by the heat-dissipating substrate, the hermetically sealed outer cavity side wall and the plastic plate.

The invention relates to the field of image processing and display and provides an image rotation method and device for dot matrix display equipment. According to the method, the pixel value of an original image is fully utilized in the process of rotating the image and corresponds to the pixels of the rotated image one to one, the image integrity is ensured, and the problem that the operational efficiency is low because of interpolation operation and multiplication is eliminated; and meanwhile, the rapid algorithm is combined with the image storage mechanism and then is applied to the real-time display process of the video image, which is suitable for hardware implementation. Therefore, according to the technical scheme, the image rotation method used for dot matrix display equipment comprises the following steps: decomposing the image rotation process into three steps, translating the horizontal coordinates of partial pixels for integer units after the first transform, translating the vertical coordinates of the partial pixels for integer units after the second transform, and translating the horizontal coordinates of the partial pixels for integer units after the third transform. The method is mainly applied to image processing.

The invention provides a disease and insect pest detection system based on SAE-SVM, and relates to the technical field of modern agriculture. The system comprises image acquisition devices which are arranged between the ridges of a planting region and a big data server platform which is installed in the indoor. The obtained information is displayed on an LED dot matrix display screen and uploaded to a cloud network. The image acquisition devices are connected with the big data server platform through a wireless network. Image features are extracted by utilizing stacked auto-encoding SAE to form feature vectors. Then the feature vectors of each leaf image are trained by a support vector machine SVM method so that a classifier is formed after training. Then a large number of plant leaf images are detected by the classifier so as to detect disease and insect pests of plant leaves. Detection and recognition of the disease and insect pests can be realized, and the situation can be discovered in the early stage of the disease and insect pests so that timely processing is facilitated, economic loss can be reduced, accuracy is high and reliability is great.

The invention discloses a pixel circuit of a smectic state liquid crystal multistable electronic paper display. For an MxN dot matrix display, the pixel circuit corresponding to an ith line and a jth row comprises transistors T1ij and T2ij, an oscillator OSCij, charge pumps CBij and CB2ij and a pixel CPij; a drive signal comprises a grid control voltage VGi, and source end driving voltages VS1j and VS2j, grid electrodes of the transistors T1ij and T2ij of the ith row are connected with the grid control voltage VGi, the source electrode of the transistor T1ij of the jth line is connected with the source end driving voltage VS1j, and the source electrode of the transistor of the jth line is connected with the source end driving voltage VS2j; the drain electrode of the transistor T1ij is connected with the input end of the charge pump CB1ij, and the drain electrode of the transistor T2ij is connected with the input end of the charge pump CB2ij; the charge pump CB1ij and the charge pump CB2ij are connected with oscillator oscillation signals phi1ij and phi2ij of the oscillator OSCij; the oscillator OSCij is powered by the grid control voltage VGi; and the output ends of the charge pump CB1ij and the charge pump CB2ij are respectively connected with two counter electrodes of the pixel CPij. According to the pixel circuit of the smectic state liquid crystal multistable electronic paper display, energy consumption can be reduced, and more accurate control is realized.

A device for driving a dot matrix display panel has a number of first terminals that can be connected to different signal lines in the dot matrix display panel, to carry current to or from picture elements in the dot matrix display panel. The invented device also has a second terminal and a set of switches that can selectively connect the first terminals to the second terminal. These switches enable a measurement device connected to the second terminal to measure electrical parameters at the first terminals individually, so that the electrical parameters of the device can be tested efficiently and accurately, without having to contact each of the first terminals with a probe.

The invention relates to the technical field of the display screen, in particular to a liquid-crystal-display-screen-based font dot matrix display method and a storage device. The method comprises: liquid crystal display parameters and font dot matrix information of a to-be-displayed content are obtained; and according to the liquid crystal display parameters and the font dot matrix information of the to-be-displayed content, an LED display effect of the to-be-displayed content on a liquid crystal display screen is realized. The liquid crystal display parameters include screen width and height pixel point numbers and horizontal and vertical screen setting. According to the invention, the liquid crystal display parameters and font dot matrix information of the to-be-displayed content are obtained; the LED display effect of the to-be-displayed content on a liquid crystal display screen is realized based on the liquid crystal display parameters and the font dot matrix information of the to-be-displayed content and the to-be-displayed font contents are displayed in a matched manner according to different liquid crystal display screen sizes. Therefore, usage of several liquid crystal display screen devices is avoided; and the display effect is good and the equipment is saved.

The invention provides a power supply topology system of an LED (Light-Emitting Diode) display module, comprising an AC (Alternating Current) power supply input interface, an AC power supply filtering and PFC (Power Factor Correction) module, a module auxiliary power supply module, a DC (Direct Current) bus, a plurality of main power supply conversion loop modules and a plurality of LED dot matrix display modules; the AC power supply input interface is connected with the AC power supply filtering and PFC module; the AC power supply filtering and PFC module is connected with the module auxiliary power supply module and the DC bus; the DC bus is connected to the module auxiliary power supply module and the main power supply conversion loop modules; and the main power supply conversion loop modules are connected with the LED dot matrix display modules.

The invention discloses a Beidou satellite timing system and method. By the adoption of the Beidou satellite timing system and method, Beidou satellite time signals can be read and stably displayed in real time through an LED dot-matrix display screen, and network time synchronization is conducted on network devices in a wireless network. According to the Beidou satellite timing system and method, a satellite navigation message is received through a Beidou navigation module and a GPS navigation module, whether locating conducted by the Beidou navigation module succeeds or not is judged through a field-programmable gate array module, and universal time is extracted, converted and displayed by the LED dot-matrix display screen; a micro control unit judges whether a network timing requirement or a dot-matrix brightness adjustment request is received or not; if yes, time information is added to a network time protocol transmitted in the wireless network for network time synchronization or brightness is adjusted by adjusting the gate time of a dot matrix, and if not, judgment continues. The Beidou satellite timing system and method achieve LED dot-matrix display of time service and the network time synchronization function and are wide in application range, and the stability of the system is high.

The present invention is applicable to the field of dot matrix text display, and provides a dot matrix text display method and apparatus. The dot matrix text display method comprises: calling a display function of a dot matrix text; displaying the color of the dot matrix text according to the display function; calling pre-stored character mode data corresponding to a dot matrix text, wherein the character mode data comprises the number of storage bits 1 and coordinate locations; and drawing the text in a specified area of a display object according to the number of the storage bits 1 and the coordinate locations. According to the dot matrix text display method and apparatus provided by the present invention, the problem in an existing electronic device that man-machine interaction efficiency cannot be improved due to relatively long time for display screen loading and dot matrix text outputting is solved; and when an electronic device is used normally, the text can be quickly displayed, thereby saving power of the electronic device and improving efficiency of human-machine interaction.

The invention provides an infrared remote controller for sending a display code to an LED dot matrix display screen and a control method thereof. The infrared remote controller comprises (1) a microprocessor; (2) a serial port which is connected with serial receiving and sending pins of the microprocessor, and used for receiving the dot matrix display code; (3) a nonvolatile storage device which is connected with the main control synchronous serial port of the microprocessor, and used for storing the dot matrix display code received by the remote controller; (4) a button (1) which is connected with an input pin of the microprocessor, and used for sending an infrared emitter starting signal to the microprocessor; (5) an infrared emitter used for emitting the stored dot matrix display code of the character or graphic; (6) a digital display component (2) used for displaying the serial number of the information currently emitted by the infrared emitter in the nonvolatile storage device; and (7) a remote controller power supply. The invention has the advantages of refreshing the display content on the LED dot matrix display screen more quickly and conveniently, and also providing more abundant display content for the LED dot matrix display screen.

The invention provides a spherical dot matrix display screen. The spherical dot matrix display screen comprises six quadrilateral quasi-spherical surface screens, wherein the quadrilateral quasi-spherical surface screens are same in shape and size, every two adjacent quadrilateral quasi-spherical surface screens are spliced, and the angular vertexes of the quadrilateral quasi-spherical surface screens are arranged on the same spherical surface; each quadrilateral quasi-spherical surface screen is divided by n equal-division longitude lines and m latitude lines into n*m positions where quadrilateral plane display panels are installed, and therefore the varieties of the quadrilateral plane display panels which are matched and designed are few, and the quadrilateral plane display panels are applicable to batch manufacturing, maintenance and replacement. The operation that the quadrilateral plane display panels which are installed in a bent mode on angle end points on the same latitude line are pressed to be attached to the spherical surface can be easily carried out. Each quadrilateral plane display panel comprises a face shield, a PCB, a bottom shell, a waterproof sealing ring and fixing screws, wherein the lamp surface of the PCB is filled with waterproof glue, and the quadrilateral plane display panels are applicable to outdoor installation and application of the spherical dot matrix display screen or a spherical surface dot matrix display screen. The spherical surface dot matrix display screen can be formed in a mode that a portion of the spherical dot matrix display screen is cut as needed.

The invention relates to a device for improving the resolution of a dot matrix display screen and a dot matrix display screen system. The device comprises a pixel space dividing device and a signal time synchronizer, wherein the pixel space dividing device is arranged between the dot matrix display screen and a receiving screen; the signal time synchronizer is connected with the dot matrix display screen and the pixel space dividing device; and the pixel space dividing device is used for dividing each pixel of the dot matrix display screen into M sub-pixels in space according to a signal of the signal time synchronizer and periodically displaying a display image corresponding to each sub-pixel of each pixel at a corresponding position on the receiving screen. After the scheme of the invention is adopted, due to the vision persistence effect of human eyes, the display effect of dividing each original pixel into M sub-pixels can be generated so as to improve the resolution of the dot matrix display screen and enabling the dot matrix display screen to be suitable for places in which users see in a short distance in a room.