Abstract: A pixel circuit includes sub-pixel circuits each including a reset sub-circuit, a driving sub-circuit, and a light-emitting device. The reset sub-circuit is configured to input a voltage provided by an initial voltage terminal to the driving sub-circuit under control of a signal from a first reset control terminal. The driving sub-circuit is configured to control a driving current flowing through the light-emitting device according to a data signal output by a data terminal. The sub-pixel circuits include first and second sub-pixel circuits that are located in two adjacent columns, and connected to a same data terminal. A first reset control terminal and a writing control terminal of the first sub-pixel circuit are connected to first and second scanning signal terminals. A first reset control terminal and a writing control terminal of the second sub-pixel circuit are connected to second and third scanning signal terminals.

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied; a first switch element connected between the first node and the second node; a second switch element connected between the third node and the fourth node; a first capacitor connected to the first gate electrode of the driving element; and a second capacitor connected to the third node.

Abstract: A display device includes a plurality of pixels and a control circuit configured to control brightness of the plurality of pixels. Each of the plurality of pixels includes a light-emitting element and a pixel circuit configured to control light emission of the light-emitting element. The pixel circuit includes a driving transistor configured to supply electric current to the light-emitting element, and a storage capacitor configured to store voltage to control the electric current to be supplied by the driving transistor to the light-emitting element. The control circuit is configured to determine a statistic of brightness of pixels specified by one or more video frames with a predetermined method, determine a length of a threshold compensation period for which the storage capacitor applies threshold compensation to the driving transistor based on the statistic, and control the pixel circuit based on the threshold compensation period.

Abstract: A display device includes a display area, and a dummy area disposed on one side of the display area, where each of the display area and the dummy area includes a first island pattern and a second island pattern disposed to be spaced apart from each other, and a connection pattern connecting the first island pattern and the second island pattern to each other, and the dummy area includes a dummy common electrode and a common connection electrode electrically connected to the dummy common electrode, which are disposed in each of the first island pattern and the second island pattern thereof.

Abstract: A subpixel circuit, a display panel, and a display device are disclosed. A subpixel circuit for operating a subpixel of a display panel may include: a reference circuit configured to receive a high-potential voltage and to output a control voltage for controlling a driving current flowing through a light emitting element; a light emitting circuit including the light emitting element, the light emitting circuit being configured to receive the control voltage and a low-potential voltage and to control the light emitting element based on a driving voltage; an amplification circuit configured to compare the control voltage and a data voltage to generate the driving voltage for controlling the light emitting circuit; and an input circuit configured to receive the data voltage and a first scan signal and to control a timing of applying the data voltage to the amplification circuit based on the first scan signal.

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving transistor which includes a first electrode connected to a first node, a gate electrode connected to a second node, and a second electrode connected to a third node, and supplies a driving current to a light emitting device; a first transistor that is electrically connected between the first node and the second node; a second transistor that is electrically connected between the first node and a data voltage; a third transistor that is electrically connected between the first node and a power supply line that supplies a high potential voltage; and a storage capacitor that includes a first electrode connected to the high potential voltage and a second electrode connected to the second node.

Abstract: A pixel circuit of a display panel includes a driving transistor, first to fifth transistors, and a light emitting device. The driving transistor includes a first terminal, a second terminal and a gate terminal. The first transistor is coupled between a power supply terminal and the first terminal of the driving transistor. The second transistor is coupled between the first terminal of the driving transistor and the gate terminal of the driving transistor. The third transistor is coupled between the second terminal of the driving transistor and the gate terminal of the driving transistor. The fourth transistor is coupled between a data input terminal and the second terminal of the driving transistor. The fifth transistor is coupled to the second terminal of the driving transistor. The light emitting device is coupled between the fifth transistor and a reference voltage terminal.

Abstract: The present application provides a display device. The display device includes a pixel circuit and multiple operational amplifiers. Pixel units in the same column are electrically connected to the same operational amplifier. The display device of the present application uses the operational amplifier to stabilize a voltage and amplify a current, which solves non-uniformity of the display panel caused by the difference in a threshold voltage and channel electron mobility of the thin film transistor due to an immature manufacturing process of a thin film transistor, so uniformity of the panel is improved.

Abstract: A device including a display screen including display pixels arranged in rows and in columns, including a first row and a first column. The device further includes a display screen control circuit configured to, in a first mode, start the display of a first image on the first row and on the first column and, in a second mode, start the display of a second image on one of the rows different from the first row and/or on one of the columns different from the first column.

Abstract: A power management driver and a display device having the power management driver are provided, including a first power supply configured to supply a first voltage to a first driving power terminal of a pixel through a power line during a sensing period, and supply a second voltage to the first driving power terminal of the pixel through the power line during a display period; a controller configured to control timing at which the first voltage is output and timing at which the second voltage is output during a transition period between the display period and the sensing period in response to a sensing control signal; and a fault detector configured to detect a fault in the power line based on a current flowing through an output terminal during the sensing period.

Abstract: An OLED display system having compensation or loss of brightness is provided, including OLED-based display pixels, a sensing system having sensors, a processor having an LIA, an LPF, and analog to digital circuitry connected to each sensor and for providing a sensor signal for each sensor. The processor is adapted to apply a drive signal having a periodic signal to at least one OLED pixel in the display, receive the sensor signal, provide a primary frequency component from the sensor signals using the LIA based on the periodic signal, provide secondary frequency components from the sensor signals using the LPF, convert the secondary frequency components to a digital signal using the ADC, provide the digital signal to the processor as a sensing signal, and determine compensation for the drive signal. A method is also provided.

Abstract: Disclosed is a display device including a display panel including a plurality of pixels and a voltage generator providing an anode initialization voltage to the pixels. The display panel is divided into a first display area operating at a first operating frequency and a second display area operating at a second operating frequency. While pixels, which correspond to the first display area, from among the plurality of pixels are driven, the anode initialization voltage has a first voltage level. While pixels in the second display area from among the plurality of pixels are driven, the anode initialization voltage has a second voltage level different from the first voltage level.

Abstract: A display device includes a display panel including a pixel circuit, a display panel driving circuit that drives the display panel, a voltage generating circuit that receives an input power supply voltage when the display device is powered on and generates display panel voltages and driving circuit voltages based on the input power supply voltage, and an over-current protecting circuit that monitors an over-current generated inside the display device and generates a shut-down request signal when the over-current is detected. The voltage generating circuit outputs an initialization voltage at a first time point corresponding to a time point at which the input power supply voltage is received. The display panel driving circuit outputs a scan clock signal at a second time point. The over-current protecting circuit performs a first over-current protecting operation in a power-on monitoring period set between the first time point and the second time point.

Abstract: A shift register, a driving method, a driving control circuit and a display device. The method comprises: at a data refresh stage (T10), applying to an input signal end (IP) an input signal having a pulse level, applying a control clock pulse signal to a control clock signal end, and applying a noise reduction clock pulse signal to a noise reduction clock signal end; at a noise reduction holding phase (T21-1), applying a fixed voltage signal to the input signal end (IP), applying a fixed voltage signal to the control clock signal end, and applying a fixed voltage signal to the noise reduction clock signal end; and at a noise reduction enhancement stage (T22-1), applying a fixed voltage signal to the input signal end (IP), applying a fixed voltage signal to the control clock signal end, and applying a clock pulse signal to the noise reduction clock signal end.

Abstract: The present disclosure provides a shift register unit, including a detection signal input sub-circuit, a display signal input sub-circuit, an output circuit, a pull-down control circuit and a signal output terminal, the output circuit includes a pull-up sub-circuit and a pull-down sub-circuit, the pull-down control circuit includes a selection sub-circuit and a plurality of pull-down control sub-circuits. The present disclosure further provides a gate driving circuit, a display panel and a driving method for driving the display panel. The shift register unit has a simple structure and a long service life.

Abstract: A display device includes a display panel and a scan driving circuit. The display panel includes a plurality of pixels and a plurality of sensors. The scan driving circuit drives a plurality of scan lines. Pixels in a j-th row among the plurality of pixels are connected to a j-th scan line among the plurality of scan lines, in which j is a positive integer. Sensors, which correspond to the pixels in the j-th row, from among the plurality of sensors are connected to an a-th scan line among the plurality of scan lines, in which a is a positive integer different from j.

Abstract: A display device includes: a pixel, a scan driver, an emission driver, and a data driver. The pixel includes: a light emitting element; a first transistor; a second transistor connected between a data line and a first node; a third transistor connected between a second node and a third node connected to a gate electrode of the first transistor; a fourth transistor connected between the second node and a third power line; a fifth transistor connected between the first node and a fourth node; a sixth transistor connected between a first power line and the first node and which is turned off in response to a first emission control signal; a storage capacitor connected between the third node and the fourth node; and a first capacitor connected between the first power line and the fourth node.

Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.

Abstract: In an electro-optical device, pixel circuits are provided corresponding to an intersection between a scanning line in an i-th row and a data line in a k-th column in a display region, and an intersection between a scanning line and data line. The pixel circuit is brought into an optical state in accordance with a voltage of a data line when a scanning line is selected. In an odd frame period, in the i-th row selection period and the (i+1)-th row, a data signal of a voltage corresponding to the i-th row and k-th column of data of the top image is output, and in an even frame period, in the i-th row selection period and the (i+1)-th row, a data signal of a voltage corresponding to the (i+1)-th row and the k-th column of data of the bottom image is output.

Abstract: A gate driver may include: a controller to charge and discharge a first control node that pulls up an output voltage and a second control node that pulls down the output voltage; a first output unit having a first pull-up transistor to apply a gate high voltage to an output node in response to a charging voltage of the first control node, and a first pull-down transistor to apply a gate low voltage to the output node in response to a charging voltage of the second control node; and a switch unit to change a current path between a first output node and a first power line to which a high potential voltage is applied or a second power line to which a first clock signal is applied according to a carry signal transmitted from a previous signal transmission unit and a voltage level of the second control node.

Abstract: A display device comprises: a display panel including a first display area comprising a first pixels, and a second display area comprising a second pixels, each pixel including a light emitting element; a data driver circuit configured to output data voltages of an image to the first and second pixels; a gate driver configured to output scan signals to the first and second pixels; and a power supply configured to generate a low-potential power supply voltage that is applied to the light emitting element included in each pixel, the low-potential power supply voltage switching between a first level such that the light emitting element is capable of emitting light, and a second level such that the light emitting element cannot emit light, wherein a frame period of the display device includes an addressing period during which the low-potential power supply voltage switches from the second level to the first level.

Abstract: A scan driver includes stages, and first to third clock signals are applied to the stages, respectively. A falling time of the first clock signal is shorter than falling times of the second and third clock signals.

Abstract: A display apparatus includes an active area, an inactive area surrounding the active area, a pixel disposed in the active area, and a driver IC, a gate driver, a low-potential power supply line, a high-potential power supply line and a subframe controller disposed in the inactive area, wherein the subframe controller is disposed between the pixel and the gate driver.

Abstract: A shift register unit, a scanning drive circuit, a display substrate and a display device. The shift register unit includes an output end, a node control end, a first output node control circuit, a second node control circuit, a second output node control circuit and an output circuit, the second node control circuit is electrically connected to a first clock signal line, the node control end, the first output node and the second node; the first output node control circuit is electrically connected to the second node and the first output node and is configured to control a potential of the first output node; the second output node control circuit is electrically connected to the second node and the second output node; the output circuit is electrically connected to a first output node, a second output node, a first voltage line, a second voltage line and an output end.

Abstract: A display device includes a reference voltage line electrically connected with a first node and receiving a sensing voltage reflecting a characteristic value of at least one subpixel and an analog-to-digital converter including a second node, receiving the sensing voltage, and outputting a digital value corresponding to the sensing voltage, wherein a voltage level of a driving reference voltage applied to the first node and a voltage level of an analog-to-digital converting reference voltage applied to the second node are changed depending on a level of the sensing voltage, thereby compensating for changes in the characteristic values of subpixels even when abnormal subpixels for which appropriate compensation for changes in characteristic values of subpixels is limited.

Abstract: An electroluminescent display apparatus can include a display panel including at least one pixel; and a data driver configured to output a data voltage of a first gray level to the at least one pixel in a first refresh frame, output a flicker compensation data voltage to the at least one pixel in a second refresh frame, and output an anode reset voltage to the at least one pixel in at least one anode reset frame arranged between the first refresh frame and the second refresh frame, in which the anode reset voltage is a voltage for turning off a light emitting device included in the at least one pixel, and the flicker compensation data voltage is generated based on applying a weight to a data voltage of a second gray level.

Abstract: A semiconductor device is provided. The semiconductor device includes: an offset compensation circuit configured to obtain first data including first low-order bit data, second low-order bit data and high-order bit data, select two compensation values from among a plurality of compensation values based on the first low-order bit data, identify a final compensation value by interpolating the two compensation values based on the second low-order bit data, and compensate the final compensation value to generate second data; and a source driver configured to interpolate and output two gamma voltages from among a plurality of gamma voltages based on the second data.

Abstract: An electronic system includes a control circuit to provide a binary control signal alternating between a first binary state during first phases and a second binary state during second phases; a screen controlled by the control signal, the screen emitting light during each first phase, and to not emit any light during each second phase; a light sensor under the screen or along the edge of the screen, and providing a measurement signal representative of a quantity of light received by the sensor during a measurement phase or a plurality of consecutive measurement phases; and a synchronization device to synchronize each measurement phase with a second phase.

Abstract: The present disclosure relates to a display panel and an electronic device. The display panel includes a driving array; first light-emitting deices electrically connected with the driving array; and second light-emitting devices located between at least two of the first light-emitting devices and electrically connected with the driving array. In a case where the first light-emitting devices are in a working state and the second light-emitting devices are in a first state, the display panel is in a first mode; and in a case where the first light-emitting devices are in a working state and the second light-emitting devices are in a second state, the display panel is in a second mode, wherein a visual angle of the display panel in the first mode is greater than 0 and smaller than a visual angle of the display panel in the second mode.

Abstract: An electronic device includes a display panel having a display surface that includes a first region and a second region. The display panel outputs a first light in the first region and a second light in the second region. The first light has a first normal brightness in a first orthogonal direction and a first oblique brightness in a first inclined direction. The second light has a second normal brightness in a second orthogonal direction and a second oblique brightness in a second inclined direction. The included angles between the orthogonal directions and the corresponding inclined directions are acute angles. A ratio of a difference between the first normal brightness and the second normal brightness to the first normal brightness is less than a ratio of a difference between the first oblique brightness and the second oblique brightness to the first oblique brightness is defined as a second ratio.

Abstract: A circuit device is used in a display apparatus. The display apparatus includes a display panel and a backlight including a plurality of light sources. The plurality of light sources are respectively provided corresponding to a plurality of areas of the display panel. The circuit device includes a light amount abnormality detection circuit, a dimming circuit, and a color correction circuit. The light amount abnormality detection circuit detects a light amount abnormality of the light source. The dimming circuit performs light amount compensation processing of compensating for a light amount of an area corresponding to an abnormal light source by adjusting a light amount of a light source other than the abnormal light source that is a light source in which the light amount abnormality is detected.

Abstract: The present disclosure discloses a method for processing a report point data, a handwriting reading device and a computer storage medium. The method for processing the report point data includes: transmitting report point data associated with received handwriting to a display controller by a System on Chip; looking up a LUT table and acquiring a first waveform of driving an ink screen based on the report point data by the display controller; and driving the ink screen to display the handwriting using the first waveform by the display controller.

Abstract: Method and apparatus for matched buffer decompression. In some examples, a circuit comprising a first data element, a second data element, a first buffer coupled to the first data element, a second buffer coupled to the second data element, compression override logic circuits coupled to the first data element and the second data element, and a parallel register coupled to the compression override logic circuits.

Abstract: A display data processing device performs color adjustment on gradation values of pixels of a frame image of an input video signal and outputs the adjusted gradation values to a display device. The device includes a first gamma correction unit configured to set the gradation value as the first input gradation value and to convert the first input gradation value into the first corrected gradation value. The device includes a video gain correction unit configured to perform color adjustment on the first corrected gradation value according to video gain correction and to output the result as a video gain corrected gradation value. The device includes a second gamma correction unit configured to set the video gain corrected gradation value as the second input gradation value and to convert the second input gradation value into the second corrected gradation value.

Abstract: According to an aspect, a display device includes a display panel configured to display an image; and a light source configured to emit light to the display panel. The light source includes a first light source configured to emit light in a first primary color, a second light source configured to emit light in a second primary color, and a third light source configured to emit light in a third primary color. A frame period that is a display period of one frame image includes a predetermined number of subframe periods, the predetermined number is four or greater, and color reproduction of the one frame image is performed by a combination of colors that are output in the predetermined number of subframe periods. An output order of colors of the subframe periods is an order of colors in a clockwise direction or in a counterclockwise direction in a hue circle.

Abstract: The present disclosure relates to a method for calculating a chromaticity value of a white screen of a display device. The method for calculating the chromaticity value of the white screen of the display device of the present disclosure can calculate a corresponding chromaticity value of the white screen, when aperture ratios of a first sub-pixel, a second sub-pixel, and a third sub-pixel of the display device are adjusted. Then, the aperture ratios of the first sub-pixel, the second sub-pixel, and the third sub-pixel of the display device can be adjusted, so as to meet user demand for chromaticity of the white screen, ameliorate a color cast problem of current display devices, and improve a display effect of the display device.

Abstract: A liquid crystal apparatus includes a liquid crystal layer, a pixel electrode provided in a display region and configured to be supplied with an image signal at a first frequency, and a first electrode provided in a region outside the display region and configured to be alternately supplied with a positive polarity potential with a potential higher than a predetermined potential and a negative polarity potential with a potential lower than the predetermined potential at a second frequency lower than the first frequency such that a positive polarity period in which the positive polarity potential is supplied and a negative polarity period in which the negative polarity potential is supplied have a same length.

Abstract: The disclosure provides a display device and another display device. The display device includes a display panel. The display panel has a functional display area. The functional display area includes a pixel. The pixel includes a white pixel and multiple display pixels. The display pixels surround at least a part of the white pixel, and the white pixel includes a pixel electrode. The another display device includes another display panel. The another display panel has a functional display area, and the functional display area includes a pixel and a signal line. The pixel includes a white pixel and multiple display pixels. The signal line includes a branch, and the branch is electrically connected to one of the display pixels. The display device and the another display device of the disclosure is capable of reducing the problem of diffraction or having a better optical sensing effect.

Abstract: Provided are a display driving method and device, liquid crystal controller, display system and projection device. The method comprises: acquiring driving configuration information of the liquid crystal module, the driving configuration information is used for indicating the number of configured LCD drivers; receiving a color image frame, and decomposing the color image frame into 3 monochrome frame images; performing segmentation processing on each monochrome frame image to obtain monochrome frame segmentation image data corresponding to each display area of the liquid crystal module; packaging the monochrome frame segmentation image data corresponding to each display area, and sending data to the LCD driver corresponding to each display area; after the LCD driver receives the monochrome frame segmentation image data, writing, by the LCD driver the received monochrome frame segmentation image data into the liquid crystal module to drive the display area corresponding to the liquid crystal module to display.

Abstract: The present disclosure relates to a data transmission and reception method of a data driving device and a data processing device as well as a data transmission and reception system, and more particularly, to a method and a system in which the data driving device receives an initial configuration value from the data processing device, stores the initial configuration value as a configuration restoration value, and rapidly restore an environment for a high-speed communication by using the stored configuration restoration value when a link between the data processing device and the data driving device is lost so as to reduce a time for restoration.

Abstract: On an electronic device which includes a display device comprising a display driving circuit, a processor, and a memory a method for changing a refresh rate of the display device includes: changing at least one of a first parameter, a second parameter, or a third parameter in response to identifying the occurrence of at least one of a scan rate change request or a change in scan rate change restriction, and applying the changed parameter among the first parameter, the second parameter, and the third parameter. The first parameter is the frequency of a first synchronization signal generated in the display driving circuit, the second parameter is the increase or decrease in a blank area to substitute for a portion of active video area in frame information, and the third parameter is the frequency of a second synchronization signal for rendering.

Abstract: An example non-transitory machine-readable storage medium includes instructions to, when executed by the processor, identify an object depicted in a video scene, wherein the video scene is displayed in a graphical user interface (GUI). The example instructions are executable to 1) identify coordinates of the object depicted in the video scene, wherein the coordinates are relative to the GUI and 2) identify coordinates of an inset window which is smaller than the GUI and overlaps the video scene. The example instructions are executable to compare the coordinates of the object with the coordinates of the inset window to determine an overlap of the inset window with the object. Responsive to an identified overlap of the inset window and the object, the instructions are executable to alter a display characteristic of the inset window to avoid the overlap of the inset window with the object.

Abstract: A refrigerator includes a main body defining a storage compartment that is divided into a plurality of storage sections, and a door coupled to the main body to selectively open or close the storage compartment. The door includes a door glass having at least one transparent display area, and a door frame surrounding one or more edges of the door glass and configured to protect the door glass. The transparent display area is configured to display, based on being touched by a user, information on food stored in one or more of the plurality of storage sections that corresponds to the touched transparent display area.

Abstract: In one embodiment, a computing system may determine a focus point of a viewer based on received sensor data. The system may determine, for a current frame, a first viewing region encompassing a focus point of the viewer and a second view region excluding the first viewing region. The system may determine, for the current frame, color values for the first viewing region using respective first sampling resolutions, and color values for the second viewing region using respective second sampling resolutions. At least one second sampling resolution may be lower than a corresponding first sampling resolution associated with a same color channel. At least two of the second sampling resolutions for the color channels of the second viewing region may be different from each other. The system may output the color values for the first viewing region and the second viewing region of the current frame for display.

Abstract: Methods, apparatuses, and non-transitory machine-readable media for image location based on a perceived interest and display position. Apparatuses can include a display, a memory device, and a controller. an example controller can assign a perceived interest and sort images based in part on the perceived interest. In another example, a method can include assigning, by a controller coupled to a memory device, a perceived interest to an image of a plurality of images, wherein the perceived interest is assigned based in part on a change in position of a display coupled to the memory device while the image is viewable on the display, selecting the image from an initial viewing location on the display responsive to the assigned perceived interest, and transferring the image to a different viewing location, wherein the initial viewing location and the different viewing location are visible on the display.

Abstract: A portable drum kit is disclosed. The disclosed drum kit comprising a base; musical instruments comprising one or more drums and at least one cymbal to be fitted on the base; one or more vertical columns fixed to the base to support at least one of the musical instruments at; one or more rod members detachably coupled to the one or more musical instruments; and at least one pair of modular clamps adapted to enable fitment of the least one of the one or more drums and the at least one cymbal to the vertical columns. The modular clamps allow movement of the musical instruments between an collapsed position in which the drums and the cymbal are placed closer to each other, and a deployed position in which the drums and the cymbal are placed at desired positions to allow a percussionist to use the drum kit.

Abstract: The present invention relates to a space music stand device in which as an eye height of the player, a center of the semi-transparent mirror, a center of the reflector, and a center of the image monitor are configured as one optical axis a, the music sheet is viewed only to the player, and the playing view of the player is just transmitted, so that the playing is photographed while the eye of the player who views only the music sheet matches the eye of the camera without an obstacle, the audience may view the playing view of the player without an eye obstacle as in a conventional music stand, and the player may play the musical instrument while turning the music sheet page without an assistance of the separate page turner, and in order to obtain an effect such as presenting by the music sheet in the space by making the music sheet be viewed to a transparent plate, a page movement device is coupled to a body to move a page of a music sheet image provided by a monitor to a lower portion, the space music stan

Abstract: A musical device includes a frame including a plurality of receptacles for receiving three-dimensional parts each having a face capable of swapping between at least two orientations in the receptacle; each part including an indexing element of the orientation of the part among at least two orientations, a plurality of detectors, each detector being associated with a receptacle to determine orientation of the part by detecting an indexing element in its receptacle, at least one audio system, inserting at least two parts into their respective receptacles triggering the sound diffusion by the audio system of at least two given music tracks simultaneously based on each of the orientations of said parts determined; the device further including a calculation system to ensure synchronization of the music tracks, soundly diffused simultaneously.

Abstract: One or more embodiments of a device for securing guitar modulators is shown. The device includes a face, a bracket, and a base. The face defines a hole that extends completely through the face with a first length in a first direction and a first width in a second direction perpendicular to the first direction, wherein the first length is greater than the first width. The bracket connects under the face and extends in the first direction parallel to the hole and is configured to allow a grommet to slide along the bracket in the first direction. The base is configured to support the face.

Abstract: A key support structure of a keyboard device includes a first member and a second member that supports the first member. The first member is pivotal about a first axis that extends in a first direction and movable with a degree of freedom of movement in a rolling direction, which is a direction of rotation around a second axis extending in a second direction that is substantially orthogonal to the first direction. the second member restricts a movement of the first member in the first direction, while pivotally supporting the first member about the first axis.