Abstract: A light guide assembly, a total reflective display device and a method for manufacturing a light guide assembly are provided in the embodiments of the disclosure, the light guide assembly including: a first transparent adhesion layer, having a first profile formed thereon; a second transparent adhesion layer adhered to the first transparent adhesion layer and formed with a second profile corresponding to the first profile on a side of the second transparent adhesion layer adhered to the first transparent adhesion layer, the first profile and the second profile being formed to be in positive fit with each other and configured to incur light refraction at an interface therebetween of light rays being incident upon the first transparent adhesion layer from the second transparent adhesion layer to decrease an incident angle of the light rays; and a light guide panel, arranged on a side of the second transparent adhesion layer facing away from the first transparent adhesion layer.

Abstract: An optical module and a display device are provided; the optical module includes a light guide plate, the light guide plate includes a first surface and a second surface that are opposite; the second surface includes a plurality of non-planar portions and a plurality of planar portions; at least one of the plurality of non-planar portions is between any two adjacent planar portions; and each non-planar portion includes a first light-transmitting inclined plane inclined with respect to the plurality of planar portions.

Abstract: A method for decoding a signal. The method comprises decoding a received signal according to a predetermined decoding scheme and obtaining an estimate of a transmission signal based on the decoding result; obtaining an estimate of channel noise by using the correlation of channel noise; generating a modified received signal by subtracting the obtained estimate of channel noise from the received signal; and decoding the modified received signal to obtain a decoded signal according to the predetermined decoding scheme.

Abstract: Embodiments of the present disclosure relate to a display device and a display method for the display device. The display device includes a reflective display panel and an optical device adjacent to the reflective display panel, wherein the optical device includes a light source and an actuation mechanism configured for actuating the light source.

Abstract: A backlight module is disclosed. The backlight module includes: a back plate; an LED light strip arranged on a side of the back plate and along an edge of the back plate; a plurality of heat pipes each of which is disposed on the back plate at the same side as the LED light strips; wherein one end of the heat pipe is respectively adapted to be connected with the LED light strip, and at least part structure of each heat pipe is arranged along a temperature gradient direction of heat on the back plate when the LED light strip is in working state. In the backlight module when the backlight module is dissipating heat, the overall temperature distribution is uniform and local overheating does not occur.

Abstract: The present disclosure discloses an organic electroluminescent device, a manufacturing method thereof, and a display device. The organic electroluminescent device includes a base substrate. A light control layer is disposed on the base substrate. The light control layer includes a light transmitting structure and a light shielding structure disposed in the same layer and spaced from each other. The light shielding structure has a height h. The light transmitting structure has a width b. The light control layer is used for shielding and transmitting light emitted by the organic electroluminescent device so that an exit angle of the emitted light is within an angle ?.

Abstract: Embodiments of the present invention relate to method and device for measuring optical signal-to-noise ratio (OSNR). A method for measuring an OSNR of a signal of interest may comprise: obtaining spectrum of the signal of interest, the spectrum including power spectrum density distribution of the signal of interest in a channel bandwidth B; obtaining spectrum of a comparative signal that has the same spectrum characteristics as but different OSNR than the signal of interest, the spectrum including power spectrum density distribution of the comparative signal in the channel bandwidth B; and calculating the OSNR of the signal of interest by using the spectrum of the signal of interest and the spectrum of a comparative signal.

Abstract: A multicast exchange optical switch includes an input port device including M input ports, an output port device including N output ports, a diffractive beam splitter, an optical focusing component, and a 1×N array of reflective devices. The diffractive beam splitter diffracts each input signal beam from the input ports into at least N directions. The optical focusing component includes a first focusing lens and a second focusing lens. The first focusing lens focuses sub-beams from the respective input ports along the Y-axis direction having the same diffraction order. The second focusing lens focuses on the X-axis direction sub-beams from the same input port having different diffraction orders. The 1×N array of reflective devices is provided at the focal plane of the optical focusing component and each reflective device reflects a sub-beam from any one of the input ports to any one of the output ports.

Abstract: Some implementations can compress a digital image to create a compressed image corresponding to the digital image. The digital image can be divided into a plurality of coding units and a determination can be made whether to divide each coding unit of the plurality of coding units into smaller coding units/prediction units based on (i) a range of pixel values in each coding unit and/or (ii) a number of bits to encode the coding unit. Rate distortion optimization can be performed based on a size of each of the prediction units. A determination can be made whether to perform a transform for each of the transform units based on a size of each prediction unit and/or a spatial frequency measure associated with each transform unit.

Abstract: Embodiments of the present invention relate to method and device for measuring optical signal-to-noise ratio (OSNR). A method for measuring an OSNR of a signal of interest may comprise: obtaining spectrum of the signal of interest, the spectrum including power spectrum density distribution of the signal of interest in a channel bandwidth B; obtaining spectrum of a comparative signal that has the same spectrum characteristics as but different OSNR than the signal of interest, the spectrum including power spectrum density distribution of the comparative signal in the channel bandwidth B; and calculating the OSNR of the signal of interest by using the spectrum of the signal of interest and the spectrum of a comparative signal.

Abstract: A multicast exchange optical switch includes an input port device including M input ports, an output port device including N output ports, a diffractive beam splitter, an optical focusing component, and a 1×N array of reflective devices. The diffractive beam splitter diffracts each input signal beam from the input ports into at least N directions. The optical focusing component includes a first focusing lens and a second focusing lens. The first focusing lens focuses sub-beams from the respective input ports along the Y-axis direction having the same diffraction order. The second focusing lens focuses on the X-axis direction sub-beams from the same input port having different diffraction orders. The 1×N array of reflective devices is provided at the focal plane of the optical focusing component and each reflective device reflects a sub-beam from any one of the input ports to any one of the output ports.

Abstract: An OSNR measuring method, comprising: measuring a spectrum to be measured of an optical signal at a point to be measured of an optical transmission line, and acquiring the comparative spectrum of the optical signal within a channel wavelength range and at an SNR different from the SNR of the point to be measured; respectively integrating, within the channel wavelength range of the optical signal, the spectrum to be measured and the comparative spectrum to obtain total power Pspectrum to be measured and Pcomparative spectrum, and acquiring a noise factor F and a signal scale factor A; calculating, according to the total power, the noise factor and the signal scale factor, the noise power Pspectrum to be measured within the channel wavelength range of the optical signal, so as to obtain an OSNR of the point to be measured.

Abstract: Some implementations can compress a digital image to create a compressed image corresponding to the digital image. The digital image can be divided into a plurality of coding units and a determination can be made whether to divide each coding unit of the plurality of coding units into smaller coding units/prediction units based on (i) a range of pixel values in each coding unit and/or (ii) a number of bits to encode the coding unit. Rate distortion optimization can be performed based on a size of each of the prediction units. A determination can be made whether to perform a transform for each of the transform units based on a size of each prediction unit and/or a spatial frequency measure associated with each transform unit.

Abstract: An external storage device includes a storage unit, a D flip-flop, a power supply, an interface unit, and a processing unit. The interface unit receives an out-of-band (OOB) signal from a host computer and transmits the OOB signal to a clock input terminal of the D flip-flop. The processing unit transmits a reset signal to a data input terminal of the D flip-flop. When the processing unit detects that an output value on a output terminal of the D flip-flop changes, the processing unit controls the power supply to provide power to the storage unit. A method for starting up an external storage device is also provided.

Abstract: An enclosure of an electronic device includes a chassis defining an opening, a cover attached to the chassis to shield the opening of the chassis, and a latch apparatus mounted to the cover to lock the cover to the chassis. The latch apparatus includes a driving mechanism, a first latch mechanism, and a second latch mechanism. The first and the second latch mechanisms are connected to the driving mechanisms. The driving mechanism is manipulated to operate the first latch mechanism to engage with a first edge of the chassis, and drive the second latch mechanism to engage with a second edge of the chassis.

Abstract: A mounting apparatus is used to fix a flash drive mounted on a circuit board with a connector. The mounting apparatus is mounted on the circuit board and receives the flash drive and connector therein. The mounting apparatus includes a first sidewall and a second sidewall opposite to each other. An elastic piece and a resilient portion extend toward each other respectively from the first and second sidewall, to resist against opposite sides of the flash drive in response to the flash drive engaging with the connector.

Abstract: An enclosure of an electronic device includes a chassis defining an opening, a cover attached to the chassis to shield the opening of the chassis, and a latch apparatus mounted to the cover to lock the cover to the chassis. The latch apparatus includes a driving mechanism, a first latch mechanism, and a second latch mechanism. The first and the second latch mechanisms are connected to the driving mechanisms. The driving mechanism is manipulated to operate the first latch mechanism to engage with a first edge of the chassis, and drive the second latch mechanism to engage with a second edge of the chassis.