Abstract: The present disclosure relates to pretreating a magnetic recording head assembly for magnetic media drive. The magnetic recording head assembly comprises a slider having a media facing surface (MFS), a top surface disposed opposite the MFS, a trailing edge surface disposed adjacent to the top surface, and an optical grating disposed on the trailing edge surface. A vertical cavity surface emitting laser (VCSEL) device is mounted to the trailing edge surface of the slider. The VCSEL device is aligned with the optical grating. A magnetic recording head comprising a waveguide and a near field transducer (NFT) coupled to the waveguide is disposed on the trailing edge surface of the slider. The VCSEL device is capable of emitting a plurality of lasers that are phase coherent on to the optical grating. The optical grating is capable of directing the emitted lasers about 90 degrees to the waveguide.

Abstract: A method of delivering optical pulses to a substrate comprises directing a focused beam from a source of optical pulses along a propagation direction onto a substrate; moving the substrate relative to the beam in a plane substantially orthogonal to the propagation direction and continuously along a first direction that includes spaced apart row locations on the substrate, and delivering a plurality of optical pulses from source as the beam reaches each row location; and between delivering the optical pulses at consecutive row locations, moving the beam relative to the substrate in one or more successive discrete movements along a second direction in the plane orthogonal to the first direction, to direct the beam to one or more spaced apart column locations on the substrate, and delivering a plurality of optical pulses from the source at each column location.

Abstract: A light emitting display apparatus includes a pixel driving circuit including a driving transistor and an anode reset capacitor connected to a gate of the driving transistor and a light emitting device configured to emit light with a current supplied through the driving transistor. An anode reset period, where a data voltage is not supplied to the driving transistor, is between refresh periods where the light emitting device emits the light with the data voltage supplied to the driving transistor, and an anode reset voltage supplied to the anode reset capacitor in the refresh period is higher than an initial voltage which is input to the gate of the driving transistor in the refresh period.

Abstract: A method for reading and writing with holographic storage system includes (a) providing a reference light and a signal light; (b) transferring the reference light and the signal light to an optical storage medium to record an interference grating; (c) changing the reference light and the signal light and repeating the step of providing another changed reference light and another changed signal light to step (b), in which the reference light and the interference grating are one-to-one correspondence; (d) moving the optical storage medium and repeating steps (a) to (c); (e) providing a reading light which includes the reference lights to the optical storage medium to simultaneously read the interference gratings to form an interference result, any one of the reference lights cannot read out the interference gratings recorded by the other reference lights; and (f) moving the optical storage medium and repeating step (e).

Abstract: A display apparatus includes a display panel including a pixel, a gate driver providing a gate signal to the pixel, a data driver providing a data voltage to the pixel and an emission driver providing an emission signal to the pixel. The pixel includes a driving switching element applying a driving current to the light emitting element, a storage capacitor connected to the driving switching element, a bias capacitor connected to the storage capacitor and receiving a bias gate signal, a threshold voltage compensation switching element connected to an electrode of the driving switching element and a light emitting element initialization switching element connected to an electrode of the light emitting element. A control signal applied to an electrode of the threshold voltage compensation switching element and a control signal applied to an electrode of the light emitting element initialization switching element are generated from different signal generators.

Abstract: A display device includes: a display panel including a plurality of display areas, the display areas including scan lines, data lines, and pixels connected to the scan lines and the data lines; a first source driving circuit connected to the data lines of a first display area from among the display areas; a second source driving circuit connected to the data lines of a second display area from among the display areas; a first scan driving circuit configured to receive a first clock signal from the first source driving circuit and to output first scan signals to a first group of scan lines from among the scan lines based on the first clock signal; and a second scan driving circuit configured to receive a second clock signal from the second source driving circuit and to output second scan signals to a second group of scan lines.

Abstract: An adjusting method of a display panel and an adjusting device are provided. The adjusting method of the display panel includes following steps: obtaining a minimum refresh rate and a maximum refresh rate of the display panel; calculating a standard parameter value of the display panel according to the minimum refresh rate and the maximum refresh rate; judging if the standard parameter value satisfies a preset condition; and increasing a pixel charging time under the minimum refresh rate and/or reducing the pixel charging time under the maximum refresh rate when the standard parameter value does not satisfy the preset condition.

Abstract: A display panel and a display device are provided and relates to the display technology field. The display panel includes a temperature detection module, a timing control module, and a power management module. The timing control module identifies a real-time temperature of the display panel according to different combination signals outputted by the temperature detection module and controls the power management module to generate and output a corresponding common voltage according to the real-time temperature. The common voltage can follow a minimum flicker common voltage in real time.

Abstract: A display panel includes: a light emitting element, a driving switching element, a bias switching element and a bias control switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is connected to a first electrode of the driving switching element and configured to apply a bias voltage to the first electrode of the driving switching element. The bias control switching element is connected to a first electrode of the bias switching element and configured to apply the bias voltage to the first electrode of the bias switching element.

Abstract: In a display device and driving method thereof, a display device includes: a display panel including a pixel, the pixel including a light-emitting device (LED), the pixel receiving a data signal (DS) corresponding to a gate signal, the LED emitting light by a driving current flowing from a first power voltage to a second power voltage in response to the DS, the pixel receiving a reset voltage at least once after receiving one DS and before receiving a next DS, a data driver circuit supplying the DS to the pixel through a data line, a gate driver circuit for: supplying the gate signal to the pixel through a gate line, and outputting a light emission control signal for controlling supply of one of the reset voltage and the first power voltage to the LED, and a timing controller controlling the data driver circuit and the gate driver circuit.

Abstract: An electronic device is provided. The electronic device includes a voltage source circuit, a current source circuit and an electronic component. The voltage source circuit, the current source circuit and the electronic component are electrically connected to a node.

Abstract: A display device includes a display panel including pixels, a data driver configured to apply a data voltage to each of the pixels, to apply a first reference voltage to the pixels in a first period of a first sensing period to generate first sensing data corresponding to a first driving current flowing through a driving transistor of each of the pixels, and to apply a second reference voltage to the pixels in a second period of the first sensing period to generate second sensing data corresponding to a second driving current flowing through the driving transistor of each of the pixels, and a driving controller configured to receive the first sensing data and the second sensing data from the data driver to compensate input image data based on the first sensing data and the second sensing data.

Abstract: An optical disc device includes: an optical pickup including a first laser light source that emits laser light, an objective lens that focuses the laser light emitted from the first laser light source onto an optical disc, and a light receiving element that receives reflected light from the optical disc, and performs photoelectric conversion on the reflected light received to output a received-light signal; an FS signal generator that generates an FS signal indicating the light amount of the reflected light from the optical disc, based on the received-light signal from the light receiving element; and a dirt determiner that determines that dirt is present in the optical pickup, when the peak level of the FS signal is less than a dirt determination threshold, and controls the light receiving element to increase the peak level of the received-light signal from the light receiving element.

Abstract: Disclosed is a display device which includes a display panel, a voltage generator, and a driving controller. The voltage generator generates a driving voltage and determines a voltage level of the driving voltage based on a voltage control signal. A current compensator calculates a load based on previous image data and outputs compensation image data with target luminance by compensating for current image data based on the load. The driving controller turns on the current compensator in a normal mode such that an image is displayed with the target luminance, and turns off the current compensator in a setting mode such that an image corresponding to the current image data is displayed with given reference luminance.

Abstract: The present application provides a driver for a display panel, the driver comprises at least one driving circuit, generating a plurality of Type-1 driving signals and a plurality of Type-2 driving signals for driving a plurality of pixels on display panel. The pixels include a plurality of first pixels and a plurality of second pixels adjacent to the first pixels. Each pixel includes a first display element, a second display element, a third display element. The Type-1 driving signals drive the first, second, and third display elements of the first pixels. The Type-2 driving signals drive the first, second, and third display elements of the second pixels. A first pulse of the Type-1 driving signals and a second pulse of the Type-2 driving signals are located at different time segments. By adopting the driver according to the present application, current concentration may be avoided and displaying quality may be improved.

Abstract: There is provided a recording medium, a recording apparatus, a recording method, a reproducing apparatus, and a reproduction method that make it possible to correctly reproduce multilevel codes recorded at high density. A multilevel code of at least three ML values produced by coding user data into a (d,k)-RLL code of the ML values and a particular pattern of the ML values that includes a run of repeated codes which is greater than a maximum run k of the multilevel code are recorded on a recording medium. In addition, reproduction is performed from the recording medium, and the multilevel code is decoded according to the particular pattern. For example, the present technology can be applied to a recording medium, a recording/reproducing apparatus that performs recording on and reproduction from the recording medium, and the like.

Abstract: A display device includes: pixel circuits arranged in a first direction on each of a first pixel row and a second pixel row; dummy sensor circuits arranged in a predetermined interval between the pixel circuits on the first pixel row; sensor circuits arranged in the interval between the pixel circuits on the second pixel row; light emitting elements disposed on the pixel circuits and connected to each of the pixel circuits; first light receiving elements on at least some of the pixel circuits of the first pixel row and the dummy sensor circuits; and second light receiving elements on at least some of the pixel circuits of the second pixel row and the sensor circuits. One of the sensor circuits is connected to at least two of the first light receiving elements and at least two of the second light receiving elements.

Abstract: According to one embodiment, a magnetic disk device includes magnetic disks, a plurality of magnetic heads, and a control unit. A plurality of magnetic heads each includes a heat-assist unit which applies a preheating current of such magnitude that data already written to the magnetic disk is not erased to a near-field optical element for the preheat time. The control unit measures the time elapsing from a start of write to the time when a value of an index indicating the quality of a recording signal of data written by the magnetic head converges to within a first threshold range, and adjusts the preheat time for each of the magnetic heads in such a manner that the measured lapse time becomes less than or equal to a second threshold.

Abstract: A pixel circuit and a display panel are provided in the present application. The pixel circuit includes a driving module, a pulse amplitude modulation module, a pulse width modulation module, an internal compensation module, and an electrical potential maintaining module. High grayscale display is controlled by the pulse amplitude modulation module in a pulse amplitude modulation manner, low grayscale display is controlled by the pulse width modulation module in a pulse width modulation manner, and the internal compensation module performs internal compensation on a first terminal of the driving module, to realize an internal compensation and hybrid driving of the pixel circuit.

Abstract: A method of performing a write operation in a holographic data storage system, in which schedule schedules at least one write operation across multiple non-contiguous write intervals, the write operation pertaining to a set of data to be stored in a region of a holographic recording medium. In each of the non-contiguous write intervals, the region of the holographic recording medium is exposed to an interference pattern caused by interference between a reference beam and an input beam carrying the set of data. The multiple non-contiguous write intervals have a total aggregate duration of sufficient length to cause a persistent state change in the exposed region, such that the set of data is recoverable from that region by the end of a final write interval of the multiple non-contiguous write intervals.