192results about "Static indicating devices" patented technology

A drive circuit is provided for an OLED pixel display. The drive circuit is adapted for use with a reference voltage source. It includes a first transistor and an OLED. The output circuit of the first transistor is operably connected between the reference voltage source and the OLED. Transmission gate means responsive to a control signal are provided to transmit a data signal to the first transistor. Means are provided for controlling the first transistor in accordance with a time domain modulation signal to provide an average current to the OLED which is a function of the data signal.

The present invention discloses a display panel and a display device. A display area is divided into a first display area and a second display area, when the number of pixels of one row of pixels in the second display area is smaller than the number of pixels of one row of the pixels in the first display area, the load of a scanning signal line connected with the row of the pixels in the second display area is smaller than the load of a scanning signal line connected with the row of the pixels in the first display area, and through adoption of a mode of connecting at least one of each scanning signal line connected with each row of the pixels in the second display area with a compensation capacitor, the load of the scanning signal lines connected with the compensation capacitor can be increased, and the load difference from the scanning signal lines in the first display area can be reduced so as to improve the problems that the loads of the scanning signal lines are different to cause uneven data writing-in and uneven display.

An organic light emitting device includes a display panel which includes a plurality of pixels, a power supply which generates a driving voltage, an overcurrent detector which detects an overcurrent flowing from the power supply to the display panel, and a driving voltage blocking unit which blocks the driving voltage to the plurality of pixels based on an output signal of the overcurrent detector.

An electronic system includes a three terminal device having a light emitting portion and a magnetically sensitive portion. The magnetically sensitive portion is for modulating light emission from the light emitting portion. The device is a spin valve transistor having a light-emitting quantum well in its collector. The device can convert a magnetic digital signal to both an electrical digital signal and an optical digital signal, wherein either or both of these signals can be provided as a device output. The magnetically sensitive portion of the device is formed of a pair of magnetically permeable layers. When the layers are aligned electron current can pass through with sufficient energy to reach a quantum well where they recombine, generating light. The device may be used to read a magnetic storage medium, such as a disk drive. Or it can be used to provide a display or a memory array composed of single device magnetic write, optical read memory cells. Amplification can be provided to the transistor by adjusting the collector base voltage to provide secondary electrons by impact ionization to provide greater electron current and a correspondingly larger optical emission signal.

An active device array substrate including a substrate, scan lines, control lines, data lines, pixel structures, main transmission lines and sub transmission lines is provided. The substrate has an active area and a peripheral area. The scan lines and the control lines are disposed within the active area. The control lines are parallel to the scan lines and each control line is located between two of the scan lines. The main transmission lines located within the peripheral area are connected with the scan lines. The sub transmission lines located within the peripheral area are connected with the control lines. Each sub transmission line is located between two of the main transmission lines. Each main transmission line at least includes an impedance adjusting unit, and the impedance difference between each main transmission line and one of the adjacent sub transmission lines is larger than 3Ω.

A gate line driving circuit includes a shift register section that selects gate lines for gradation display and for black insertion, and an output circuit that outputs a driving signal to the gate line which is selected by the shift register section. In particular, the output circuit is configured to obtain an overlap between an output period of a driving signal to each selected gate line and an output period of a driving signal to a gate line that is driven in precedence to the selected gate line, and independently control a first preliminary driving period corresponding to the overlap for gradation display and a second preliminary driving period corresponding to the overlap for black insertion.

The invention discloses a naked 3D track display method and equipment. The method comprises the steps as follows: an image collector collects images of a viewer; an image processor determines the position of the viewer; according to the position of the viewer, a traversing module finds a liquid crystal grating state value corresponding to the position of the viewer, which is determined by the image processor from a index list corresponding to the position of the viewer, and the liquid crystal grating state value comprises a plurality of adjacent grating units and the driving manner of each of the plurality of adjacent grating units; a grating driving module finds the liquid crystal grating state value according to the traversing module to drive the liquid crystal gratings; and image information is displayed by a displaying screen. The invention further disclosed naked 3D track display equipment. According to the invention, a 3D display region can be regulated according to the spatial location of the viewer, so that the viewer can always senses a 3D displaying effect during motion.

The invention relates to a folding type display apparatus and electric equipment. The folding type display apparatus comprises a flexible display section, and a plurality of housings, which includes a first housing having a space formed therein, and second and third housings bendably connected to both ends of the first housing. The display section is fixed to the second and third housings, and in a closed state of the second and third housings, a folding portion of the display section is housed in the space formed by the first housing, while in an open state of the second and third housings away from each other, the display section becomes flat, and the first housing functions as a leg protruding from flat surfaces of the second and third housings, so that the second and third housings are fixed to each other and the folding portion of the display section is supported, by a holding member for connecting these housings.

A display device includes a first substrate, a first electrode provided on the first substrate, an insulation layer provided on the first electrode, a second electrode provided on the insulation layer, a cavity partition surrounding the second electrode with an interval therebetween, a second substrate provided on the cavity partition, and a droplet of a coloring liquid sealed in the cavity partition. In the display device, a third electrode for promoting restoration of the droplet of a coloring liquid to a spherical shape is provided. In the display device, the insulation layer includes a insulator film and a low surface energy film; the insulator film assumes a specific inductive capacity of three or more and a thickness of 10 nm to 100 nm; and the low surface energy film assumes a thickness of 100 nm or less.

A shift register having individual driving nodes is disclosed. The shift register includes a first clock pull-down module, a second clock pull-down module, a key pull-down module, a self feedback module, and a driving output unit. The first clock pull-down module is used to pull-down the potential of a gate line to a low voltage when the first clock signal is in a high voltage level. The second clock signal pull-down module pulls down the potential of the gate line to the low voltage when the second clock signal is in a high voltage level. The key pull-down module rapidly pulls down the potential of the gate line to the low voltage level after the gate line outputs an output signal. The self feedback module is used to output a driving signal to the key pull-down module. The driving signal output unit outputs a next stage driving signal which is irrelative to the operation of the previous stage shift register.

The invention relates to an LED pixel correction coefficient uploading method of an LED display screen, which comprises the following steps: converting a plurality of LED pixel correction coefficients of the LED display screen into a plurality of correction image data, wherein each LED pixel correction coefficient comprises a plurality of correction information, and each correction image data comprise one or a plurality of correction information of part or all of the LED pixel correction coefficients; conveying the correction image data to a video interface, electrically connected with the LED display screen, of the control system of the LED display screen, and analyzing the LED pixel correction coefficients of the LED display screen from the correction image data through the LED display screen control system for saving. The method has the advantages that correction coefficients are converted into correction image data, and the correction image data are uploaded through the video interface, so that the uploading speed of the correction coefficients is increased.

The invention discloses a pixel circuit, a driving method of the pixel circuit, a display panel, and a driving method of the display panel. The pixel circuit comprises a first transistor, a drive transistor, a second transistor, a threshold value compensation module, a first capacitor, a second capacitor, a light-emitting element and a fifth transistor, wherein the first transistor is used for transmitting a signal of a data signal end to a first node by responding to an enable signal of a scanning signal end; the threshold value compensation module is used for transmitting the signal of the first node to a second node through the drive transistor by responding to an enable signal of a second on-off control signal end; a first pole plate of the first capacitor is electrically connected tothe first node. For the pixel circuit provided by the invention, the data writing stage is carried out first, the initialization stage, the compensation stage and the light emitting stage are then carried out, the time of the compensation stage of the pixel circuit can be increased, and the compensation effect is promoted.

A method, medium, and system effectively compressing and/or restoring binary images. By compressing pixel values making up a 2×2 block in an input image, using representative values representing the pixel values and a pattern of the pixel values represented by the representative values, it is possible to effectively compress and/or restore binary images having little similarities between pixel values. In addition, by extracting compressed values and a pattern of pixel values making up a 2×2 block in an image, from compressed data of the 2×2 block, and restoring pixel values using the compressed values and the pattern, it is possible to effectively restore binary images.

An organic light emitting diode pixel driving circuit includes a pixel capacitor for storing a received voltage and coupling a change valve of the voltage at a first electrode thereof to a second electrode thereof; a first transistor for providing a reference voltage to the first electrode of the pixel capacitor under the control of a first light emitting signal; a third transistor for transmitting a data voltage to second electrode of the pixel capacitor under the control of the first scanning signal; and a fourth transistor; thereby overcoming the uneven display of the entire image, which is caused by the drift of the threshold voltage of the driving transistor and the different driving current driving the different OLEDs to emit light when the different OLEDs receive the same image data signal, the different driving current is caused by the difference the high-level power supply voltages.

An object of the invention is to provide a liquid crystal device that can produce a display and allow data input thereon with a simple configuration. The liquid crystal device includes a liquid crystal layer provided between first and second substrates, and a capacitive sensor electrode, which is not provided with a counter electrode, and a segment electrode for driving a liquid crystal, both formed on the first or second substrate at a side thereof that faces the liquid crystal layer.

The invention relates to a bistable composite film of polymer dispersed liquid crystals and a manufacturing method thereof. The composite film is composed of two pieces of flexible transparent conducting film and a layer of polymer dispersed liquid crystals, wherein, the two pieces of flexible transparent conducting film are etched with a coplanar conversion electrode; the layer of polymer dispersed liquid crystals is highly active polyurethane acrylic ester; the liquid crystals are nematic phase liquid crystal molecules with large birefringence. When imposing a coplanar horizontal electric field, the bistable composite film of the polymer dispersed liquid crystals is in closed and scattering state and still keeps the scattering state after the electric field is eliminated; when imposing a coplanar comb-shaped electrode short-circuit on an opposite electric field, the bistable composite film of the polymer dispersed liquid crystals is in open and transparent state and still keeps the transparent state after the electric field is eliminated. The bistable composite film of the polymer dispersed liquid crystals has the manufacturing method that: after being mixed, the highly active polymer and the nematic phase liquid crystals with the large birefringence are separated to form the structure that the polymer wraps crystal liquid droplets. The invention uses the simple design proposal and depends on changing the direction of the electric field to realize zero field stability of the polymer dispersed liquid crystals so as to further acquire an electronic-paper technology with better energy conservation; or the bistable composite film of polymer dispersed liquid crystals can be specially applied to the fields of building decoration and jewelry counters and so on as a dimming function film which is clipped in glass.

A data transmitting method for inputting a data signal to an electronic device. The data signal includes first and second sets of data, and the electronic device includes first to fourth receiving units and corresponding first to fourth registers. The transmitting method includes the following steps. First, the first and second receiving units are disabled. Then, the first set of data is inputted to the electronic device through the third and fourth receiving units and stored in the third and fourth registers during a first clock cycle of a clock signal. Thereafter, the second set of data is inputted to the electronic device through the third and fourth receiving units and stored in the third and fourth registers while the first set of data stored in the third and fourth registers is inputted to the first and second registers during a second clock cycle of the clock signal.

There is disclosed a liquid crystal display panel that is adaptive for simplifying its process and reducing its cost by performing a patterning process without using a photolithography process, and a fabricating method thereof. A liquid crystal display panel according to an embodiment of the present invention includes a color filter which is formed by a press forming by a soft mold; and a black matrix to divide the color filter by the cell.

The invention provides a driving device for a light-emitting component. The driving device comprises a driving circuit, a storage unit, a resetting circuit, a first switch and a compensating circuit, wherein the driving circuit determines a current on a driving end according to a voltage on a control end thereof; the storage unit is arranged for keeping the voltage on the control end of the driving circuit; the resetting circuit is arranged for providing a resetting voltage to the control end of the driving circuit during the resetting process; a first end of the first switch is arranged for receiving a data voltage; a control end of the first switch is arranged for receiving a scanning voltage; and the compensating circuit is connected between a second end of the first circuit and the control end of the driving circuit so as to transmit the data voltage provided by the first switch to the control end of the driving circuit. The driving current generated by the driving device for a light-emitting component is not affected by a critical voltage of a transistor so each pixel of the light-emitting component on a display panel can acquire a same luminance according to the data voltage.

A display device comprises pixels PX each of which has one of different luminosity characteristics, signal line blocks each including a preset number of signal lines X connected to the pixels PX having a common one of the luminosity characteristics, and a signal line driving circuit which drives the signal lines X according to a video signal. Particularly, the signal line driving circuit includes a selection circuit which sequentially selects the signal line blocks in an effective picture period of the video signal and an external driving unit which drives the preset number of signal lines included in the signal line block selected by the selection circuit.

A display method and a display system for a video wall are proposed. The method is applicable to a display system having a server and multiple player devices. Each of the player devices is connected to the server and a video wall having multiple displays, and each of the player devices corresponds to a different one of the displays and a different one of regions in a video stream. The method includes to receive the video stream from the server by each of the player devices, to send a broadcast command by a master player device among the player devices to other player devices, and to start displaying the corresponding region in a first frame of the video stream on the corresponding display of the video wall by each of the player devices after a preset delay time interval according to the broadcast command.

The invention is suitable for the technical field of electronics and provides a driving circuit of optoelectronic equipment and a driving method thereof. The driving circuit comprises a first series-to-parallel conversion chip and a second series-to-parallel conversion chip, wherein the first series-to-parallel conversion chip is connected with a singlechip through a three-wire bus and is used for converting serial data output by the singlechip into parallel data and outputting the parallel data to the section control end of the optoelectronic equipment; and the second series-to-parallel conversion chip is used for converting the serial data spilled by the first series-to-parallel conversion chip into the parallel data and outputting the parallel data after the conversion to the position gate end of the optoelectronic equipment to control the data of the display section of the optoelectronic equipment. According to the invention, multiple series-to-parallel conversion chips are connected between the singlechip and a digital tube, and the serial-in-parallel-out conversion of data is completed through the series-to-parallel conversion chips, thereby achieving the control of the driving optoelectronic equipment by only using the three-end bus, reducing the occupancy rate of the I/O (input/output) port of the singlechip so that more control tasks can be completed at the limited I/O port of the singlechip, simplifying a circuit and improving the reliability of the circuit.