摘要:
An optically addressable display includes a plurality of receptor and emitter pairs where each pair is for receiving optical display information and for generating light indicative of the display information. Each individual receptor and emitter pair is coupled electrically by an associated control circuit that facilitates driving the emitter so it generates either the received display information or annotation information generated by a light wand that is capable of being optically coupled to individual ones of the plurality of receptors. Each control circuit has a pulse density capture circuit that receives a pulse train signal indicative of a desired brightness or hue levels and drives an individual one of the emitters on and off at a determined duty cycle to produce the desired brightness or hue levels. In another embodiment sets of receptor and emitter pairs are grouped in cells, where each cell is capable of generating N of shades of different colors.
摘要:
A display system and method are provided. The system typically includes a display configured to control visible light, as well as to sense an optical signal projected thereon, the display being adapted to freeze a projected image by storing the optical signal associated with the live projected image in memory associated with the display and controlling visible light corresponding to the stored optical signal to form a frozen projection image.
摘要:
A display system including a projector and a display. The projector is adapted to wirelessly transmit image information associated with an image to be displayed. The display includes a plurality of display cells that are configured to collectively display the image based on the image information transmitted by the projector. Each display cell includes a receiver, display element and storage device. The receiver is configured to wirelessly receive a portion of the image information, and the storage device is adapted to store a control signal corresponding to the received portion of the image information. The display element is configured to display the corresponding portion of the image in response to application of the control signal from the storage device.
摘要:
A printhead system to reduce peak energy usage may include a printhead including a plurality of primitives including nozzles. A printhead control module may control the printhead to increase printed pixel resolution and to reduce peak pixel fill density for print media. The printhead control module may further control the printhead such that all the nozzles with a same address generally disposed in a column do not fire at the same time.
摘要:
A heater controller to maintain a uniform temperature of a printhead is provided herein. The heater controller monitors the temperature of the printhead and controls the heating of the printhead. The heater controller enables at least two of a plurality of warming groups based on warming power requirements of the printhead. The heater controller alternates activation of the at least two of the plurality of warming groups by rotating each of the at least two of the plurality of warming groups between an on mode and an off mode to uniformly distribute heating power to the printhead.
摘要:
A method for determining an issue with an inkjet nozzle using an impedance difference includes taking a first impedance measurement with a sensor to detect a drive bubble in an ink chamber after a drive bubble formation mechanism is activated; and subtracting the first impedance measurement from a reference.
摘要:
A printhead apparatus, an inkjet printer system, and a method of built-in test employ a test flag transmitted through a data channel of a printhead. The apparatus includes a plurality of printheads, a data register at each printhead, and a status channel. Each printhead has a unidirectional data channel (UDC) to provide data to the printhead. The data register detects proper reception of a test flag received by the printhead through the UDC. The status channel reports printhead status information including whether or not proper reception of the test flag was detected by the data register. The system includes the apparatus and a controller to generate the test flag and receive the printhead status information. The method includes sending a test flag, and verifying proper reception thereof.
摘要:
A method for calibrating a program that detects a condition of an inkjet nozzle includes receiving measurement information from a sensor positioned to detect a drive bubble in an ink chamber of an inkjet nozzle; and modifying a program that determines a condition of said inkjet nozzle.
摘要:
An electronic device of an embodiment of the invention is disclosed that at least partially displays a pixel of a display image. The device includes a first reflector and a second reflector defining an optical cavity therebetween that is selective of a visible wavelength at an intensity. The device includes a mechanism to allow optical properties of the cavity to be varied such that the visible wavelength and/or the intensity are variably selectable in correspondence with the pixel of the displayable image. The device also includes one or more transparent deposited films, one or more absorbing layers, an integral micro-lens, and/or one or more anti-stiction bumps. The deposited films are over one of the reflectors, for self-packaging of the device. The absorbing layers are over one of the reflectors, to reduce undesired reflections. The integral micro-lens is over one of the reflectors, and the anti-stiction bumps are between the reflectors.
摘要:
An electronic device of an embodiment of the invention is disclosed that at least partially displays a pixel of a display image. The device includes a first reflector and a second reflector defining an optical cavity therebetween that is selective of a visible wavelength at an intensity. The device includes a mechanism to allow optical properties of the cavity to be varied such that the visible wavelength and/or the intensity are variably selectable in correspondence with the pixel of the displayable image. The device also includes one or more transparent deposited films, one or more absorbing layers, an integral micro-lens, and/or one or more anti-stiction bumps. The deposited films are over one of the reflectors, for self-packaging of the device. The absorbing layers are over one of the reflectors, to reduce undesired reflections. The integral micro-lens is over one of the reflectors, and the anti-stiction bumps are between the reflectors.