Abstract: The present invention is directed to a system and method for measuring blood volume using non-contrast-enhanced magnetic resonance imaging. The method of the present invention includes a subtraction-based method using a pair of acquisitions immediately following velocity-sensitized pulse trains for the label module and its corresponding control module, respectively. The signal of static tissue is canceled out and the difference signal comes from the flowing blood compartment above a cutoff velocity. After normalizing to a proton density-weighted image acquired separately and scaled with the blood T1 and T2 relaxation factors, quantitative measurement of blood volume is then obtained.

Abstract: Provided herein is technology relating to magnetic resonance imaging contrast agents and particularly, but not exclusively, to methods and systems for visualizing one or more magnetic resonance imaging contrast agent.

Abstract: In a method and apparatus for acquiring magnetic resonance (MR) raw data with a simultaneous multi-slice (SMS) data acquisition sequence, nuclear spins respectively in multiple slices of the examination subject are simultaneously excited by radiating, from a radio-frequency (RF) radiator of the MR data acquisition scanner, a multi-band (MB) RF pulse. This MB RF pulse in the SMS data acquisition sequence is generated by radiating and superimposing a number of single band (SB) RF pulses emitted from said RF radiator, each having a respectively different flip angle. Raw MR data are acquired from the multiple slices of the examination subject after the simultaneous excitation of nuclear spins in the multiple slices with said MB RF pulse.

Abstract: Provided herein are adipose mimic compositions for use in MRI. The compositions of the invention mimic the MRI properties of human adipose tissue, including T1 relaxation kinetics, T2 relaxation kinetics, magnetic susceptibility, and chemical shift artifact. The compositions of the invention are readily manufactured from inexpensive materials. The compositions of the invention may be used in MRI system calibration or for implementing image correction techniques such as fat suppression.

Abstract: In a position estimation of a terminal using a beacon, the precision is improved by reducing influences of noise due to moving obstacles such as human so that a beacon region can be easily and flexibly constituted. According to a typical embodiment, a portable terminal includes a location determination unit that acquires beacon information including a reception intensity of each of beacon signals received from one or more of the beacon terminals, accumulates history data as beacon detection information, acquires a plurality of pieces of the beacon information accumulated as the beacon detection information and contained within a past predetermined period at every predetermined interval, aggregates the beacon information by scoring, and determines the beacon terminal located most closely based upon scores.

Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a mobile device to perform a distance travelled estimate with a mobile device. The distance travelled estimate is performed by determining a quality of displacement between a base position and each new position for the mobile device, which is determined based on the displacement between the positions and their associated uncertainties. If the quality of displacement is sufficient, the distance travelled estimate is updated using the displacement between the positions. Multiple tiers may be used, where, for example, if the quality of displacement is sufficiently high, the displacement associated with a preceding position may be excised from the distance travelled estimate and replaced with the displacement associated with the new position. Additionally, if the quality of displacement is even greater, the new position may be set as the base position.

Abstract: A system for locating RFID tags in an area includes a platform and an RFID reader head associated with the platform. At least one support extends between the platform and an anchor position within an area. Separate support adjustment devices are associated with each support, with each support adjustment device being operable to adjust the length of the associated support between the platform and the anchor position associated with the support. So adjusting the length of the support varies the location of the RFID reader head in the area, thereby allowing an RFID reader associated with the RFID reader head to monitor a larger area than would otherwise be possible if the RFID reader were to remain in a fixed location. The RFID reader head itself may be movable with respect to the platform for finer adjustment of the position of the RFID reader.

Abstract: A system includes: circuitry configured to obtain position information indicating positions of communication devices, the communication devices being fixed at respective installation positions, obtain time information including information on times of reception of a communication from a mobile terminal by the communication devices, calculate coordinates in a second coordinate system in which a projection surface is present using a variable, the position information, and the time information, the second coordinate system having higher dimensions than a first coordinate system indicating the position information and the time information, the variable being used for projection of the first coordinate system onto the projection surface that is defined in the second coordinate system and onto which projection may be performed without limitation in a time direction, and identify a position of the mobile terminal by converting the calculated coordinates in the second coordinate system into coordinates in the first c

Abstract: A method is provided that includes a vehicle receiving data from an external computing device indicative of at least one other vehicle in an environment of the vehicle. The vehicle may include a sensor configured to detect the environment of the vehicle. The at least one other vehicle may include at least one sensor. The method also includes determining a likelihood of interference between the at least one sensor of the at least one other vehicle the sensor of the vehicle. The method also includes initiating an adjustment of the sensor to reduce the likelihood of interference between the sensor of the vehicle and the at least one sensor of the at least one other vehicle responsive to the determination.

Abstract: A transmit/receive module having a switch, a load and a controller for coupling radar energy fed to switch to the load during a time interval subsequent to the controller producing a transmit enable signal to the transmit/receive module and prior to the controller producing a receive enable signal to the transmit/receive module.

Abstract: Aspects of the invention provide improvements to electromagnetic and other wave-based ranging systems, e.g., RADAR or LIDAR systems, of the type having transmit logic that transmits a pulse based on an applied analog signal. The improvements are characterized, in part, by a SERDES having a serializer (a/k/a a “transmit side”) that is coupled to the transmit logic. The serializer has (i) an input to which a pattern on which the pulse is based is applied and (ii) an output from which a serialization of the pattern is applied to the transmit logic. The improvements are further characterized in that the SERDES has deserializer logic (a/k/a a “receive side”) that is coupled to receive logic and that deserialize a received “analog” signal containing possible reflections of the pulse.

Abstract: Devices and methods of providing response pulses in response to threat pulses are general described. The threat pulses are detected, identified and validity determined using reprogrammable firmware. Threat pulses are extracted from memory and the amplitude, frequency, phase, length and timing modified to generate a coherent set of superposed response pulses in response to the threat pulses. The modifications are calculated in situ using parameterization, rather than being based on tables. Multiple response pulses in response to different threat pulses are simultaneously generated, combined and transmitted in a single channel. Partial pulse capability and the capability to create a weighted and modulated composition of multiple response pulses is provided.

Abstract: Provided is a scanning device including a transmission module configured to divide a scan target into a plurality of scan areas and alternately irradiate a first laser light and a second laser light to the scan areas that are sequentially arranged, a reception module configured to receive laser lights reflected from each of the scan areas, and an image generation module configured to generate divided images of each of the scan areas by using the reflected laser lights and generate a whole image of the scan target based on the divided images and an edge component of the reflected laser lights, wherein the transmission module is configured to trigger a rising edge of a trigger signal to generate the first laser light and trigger a falling edge of the trigger signal to generate the second laser light.

Abstract: A distance-measuring optoelectronic sensor (10) for detection of objects in a monitoring zone (20), the sensor (10) comprising: a light transmitter (12) for transmitting a transmission light pulse (16) into the monitoring area (20), a light receiver (26) for generating a reception signal from the light pulse (22) remitted by objects in the monitoring area (20), a control and evaluation unit (32) configured to determine a reception point in time from the reception signal and the distance of the object by means of a light time of flight method, and a first and second sampling memory (34a) having a plurality of memory cells each for storing a section of the reception signal and having partially overlapping recording regions, each being configured to record a reception signal for a longer duration than a time interval between two successive transmission light pulses (16).

Abstract: An integrated antenna device comprises a protective casing of hydrodynamic shape delimiting an inner cavity and an upper fixing interface suitable for being fixed mechanically on a carrier structure, the device further comprises an antenna housed inside the inner cavity and fixed to the internal wall of the casing at the level of at least one fixing point, an assembly of cables comprising power supply and signals reception cables linked to the antenna. The protective casing is closed in a hermetic manner and traversed in a leaktight manner by the cables.

Abstract: Provided is an ultrasound diagnosis apparatus that may include a data acquisition unit that acquires ultrasound data based on received echo signals from an object; and a processor that may estimate a center frequency of the ultrasound data and, based on the center frequency, perform pulse compression on the ultrasound data to generate short signals from elongated signals.

Abstract: A cognitive transmission switching array radar system to determine a location of a target and method of performing cognitive transmission switching with an array radar system involve N transmit antenna elements. Aspects include obtaining a crude estimation for the location of the target, and selecting M channels for transmission based on the crude estimation, the M channels corresponding with a subset of the N transmit antenna elements. Processing reflections resulting from the M channels is done to determine the location of the target.

Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on the environment, the current information stored in the radar system, and/or external information provided to the radar system. The system allows improved resolution of range, Doppler and/or angle depending on the desired objective.

Abstract: Example shopping cart corral systems and associated systems and methods are described. The example shopping cart corral system includes a corral structure, a radio-frequency transmitter, a radio-frequency receiver, and a controller coupled to the radio-frequency transmitter and the radio-frequency receiver. The controller estimates a quantity of shopping carts disposed in the shopping cart corral based on at least one property of the reflected radio-frequency signal. An example shopping cart counter system includes an elongated structure, first and second electrical contacts, a power source and a processing device. The power source applies a voltage or an electrical current to the first electrical contact and the shopping carts complete an electrical circuit between the first and second electrical contacts. The processing device estimates the quantity of shopping carts disposed in the elongated structure based on an electrical resistance associated with the shopping carts.

Abstract: A radar system has different modes of operation. In one mode the radar operates as a single-input, multiple-output (SIMO) radar system utilizing one transmitted signal from one antenna at a time. Codes with known excellent autocorrelation properties are utilized in this mode. At each receiver the response after correlating with various possible transmitted signals is measured in order to estimate the interference that each transmitter will represent at each receiver. The estimated effect of the interference from one transmitter on a receiver that correlates with a different code is used to mitigate the interference. In another mode, the radar operates as a MIMO radar system utilizing all the antennas at a time. Interference cancellation of the non-ideal cross correlation sidelobes when transmitting in the MIMO mode are employed to remove ghost targets due to unwanted sidelobes.

Abstract: According to the invention, a device and a method are provided for determining the position of an object, in particular a moving object, in the three-dimensional space. The device comprises at least two switchable transmitting antennas having a different vertical position of the phase center as well as a plurality of receiving antennas which are arranged in series. The transmitting antennas are arranged in the horizontal direction and at a distance that corresponds to the distance of the receiving antennas. The transmitting antennas are vertically offset with respect to each other by a value that is less than or equal to half the free-space wavelength of the transmitted signal. The transmitting antennas can otherwise be arranged at any position around the receiving antenna. Horizontal beam sweep across a wide angular range is carried out according to the method of “digital beamforming”.

Abstract: An ultrasound imaging system (100) includes a transducer array (102) that emits an ultrasound beam and produces at least one transverse pulse-echo field that oscillates in a direction transverse to the emitted ultrasound beam and that receive echoes produced in response thereto and a spectral velocity estimator (110) that determines a velocity spectrum for flowing structure, which flows at an angle of 90 degrees and flows at angles less than 90 degrees with respect to the emitted ultrasound beam, based on the received echoes.

Abstract: An object detection apparatus measures a distance to a detected object at each irradiation angle, based on reflected waves of electromagnetic waves irradiated from a laser light irradiating unit at each irradiation angle. The apparatus determines whether the measured distance remains unchanged for prescribed period of time, for each irradiation angle, and stores the determined distance in a storage unit as a stationary object distance in association with the irradiation angle. The apparatus compares the current measured distance and the stored distances, and determines whether a stationary object distance matching the current distance is present among the stored distances.

Abstract: TOF distance sensor for capturing the distance to an object by receiving radiation reflected by the object, said radiation emanating from a radiation source modulated by a modulation frequency, comprising a pixel matrix for recording a pixel image. The pixel matrix consists of demodulation pixels which are designed for rear-side reception of the radiation. The demodulation pixels comprise a conversion region for generating charge carriers from the received radiation, and a separating device for separating the charge carriers in accordance with the modulation frequency, and also a stop for partitioning-off the conversion region from the separating device in relation to the charge carriers, and also an aperture for passing the charge carriers from the conversion region into the separating device. The TOF distance sensor is embodied in such a way that in each case at least two demodulation pixels form a common aperture.

Abstract: A method of determining a position of a GNSS device includes receiving GNSS signals at the GNSS device from a plurality of GNSS satellites. The GNSS device generates GNSS raw data based on the GNSS signals. The GNSS raw data is stored on the GNSS device. The GNSS device receives first correction data and second correction data. The first correction data and the second correction data are generated from data from at least one reference station. Third correction data is determined based on the first correction data, the second correction data, and the GNSS raw data. Position data for the GNSS device is determined based on the third correction data and the GNSS raw data.

Abstract: A pet-locating device adapted for embedding under the skin of an animal that includes: a micro global positioning transmitter; a rechargeable battery, where the rechargeable battery supplies power to the global positioning transmitter; a voltage regulator, where the voltage regulator controls the power supply to the global positioning transmitter; and a power generator, where the power generator charges the rechargeable battery. The power generator uses mechanical motion as the mechanism to generate power.

Abstract: A method, system, and computer-readable medium for performing a flight check of one or more navigational aid systems. Aspects include obtaining, using an aircraft, first information associated with an accuracy of signals transmitted by a localizer. Aspects also include obtaining, using the aircraft, second information associated with an accuracy of signals transmitted by a glide slope station. Aspects also include transmitting the first information and the second information to a ground receiver for processing.

Abstract: A dynamic, wearable low-cost, personal high-sensitivity and wide-dynamic range measurement apparatus and method provide an accurate, objective and independent device for the real-time measurement and monitoring of an individual's career or lifetime exposure to known and unknown sources of harmful ionizing radiation, for real-time radiation exposure monitoring, overexposure warning and cancer risk management due to harmful radiation in all ambient environments.

Abstract: A radiation detection system is disclosed comprising of number of detector elements arranged in a regular pattern that allows for directional information to be collected based on the number of radiation interaction events in each detection element. This system is mounted to an unmanned vehicle. In some embodiments, this information is used by the motion control unit of the unmanned vehicle to guide its movement toward a radiation source. A radiation spectrometer, also integrated in the detection system, is able to identify radiation sources.

Abstract: A detection apparatus is provided for detection of x-ray radiation, with a lower layer arranged between a lower electrode and a middle electrode. In an embodiment, the lower layer includes at least one first perovskite. In an embodiment, a first voltage is able to be applied between the lower electrode and the middle electrode; and an upper layer is arranged between an upper electrode and the middle electrode. The upper layer features at least one second perovskite and a second voltage is able to be applied between the upper electrode and the middle electrode. Finally, an evaluation device, which is coupled to the upper layer and the lower layer, is embodied to detect an interaction of x-ray radiation with the first perovskite and an interaction of x-ray radiation with the second perovskite.

Abstract: A dual mode radiation detector can include a compact casing, a scintillator; and a photosensor disposed on the scintillator. The scintillator can be the only detection medium disposed within the casing. The radiation detector can have a Pulse Shape Discrimination Figure of Merit of at least 1.5, or a neutron detection efficiency of at least 0.06 cps/ng 252Cf, measured at 1 meter with a 5 cm high density polyethylene moderator, each measured at a temperature of 22° C.

Abstract: An X-ray detector includes an anti-scatter grid, an electrode and a converter element for converting X-rays into electrical charges in a stacking arrangement. In an embodiment, the stacking arrangement is externally enclosed by a protective element. The protective element extends in the stacking direction such that an enclosed area is at least arranged between the anti-scatter grid and the converter element and along the entire height of the converter element in the stacking direction. An adhesive element is arranged between the anti-scatter grid and the electrode.

Abstract: Prior to actual use in a downhole application, gamma spectrum shape for a gamma detector can be quantified, and a relationship established between detector gain and spectrum shape. Given this relationship, the shape of a gamma spectrum measured after downhole deployment of the detector within a wellbore, for example as part of a tool in a drill string, can be quantified and compared to the pre-established relationship to determine whether the detector gain has drifted due to temperature or operating time effects. Using this relationship, a gain-affecting voltage across the detector (e.g., the photocathode voltage across the photomultiplier tube) can be adjusted to compensate for such drifts and thus to compensate for variations caused by temperature or operating time. With such compensation applied to the detector, resulting gamma spectra reliably indicate actual differences in radiation levels, thus enabling an inference of the composition of the formation at various times/depths.

Abstract: A device, system and method for performing a 3D interpolation in a 2D interpolation stage and a 1D interpolation stage to generate a refined geological-time. A 3D model may be obtained of a subsurface region defined by an initial geological-time in the past when particles in the subsurface region are determined to have been originally deposited. The stages of the 3D interpolation may include a 2D interpolation along one or more initial 2D reference horizon surfaces to generate one or more reshaped 2D reference horizon surfaces, and a 1D interpolation based on the initial geological-time along one or more 1D interpolation lines to generate a refined geological-time, wherein each 1D interpolation line is approximately orthogonal to the initial 2D reference horizon surfaces. The 3D model may be displayed according to the refined geological-time.

Abstract: An unmanned vessel system can include a hull system configured to provide buoyancy, one or more seismic sources configured to generate seismic energy, and a deployment apparatus configured to deploy the seismic sources from the hull system to a water body or water column. A control system can be configured to operate the deployment apparatus, in order to deploy the one or more seismic sources so that the seismic energy propagates through the water column. A compressed air source can be provided on board the unmanned vessel system, with a source line configured to provide compressed air to the seismic sources.

Abstract: Systems and methods for monitoring subsea equipment are described herein. In one embodiment, such a system can include a plurality of acoustic sensor arrays that each include at least two acoustic sensors, wherein at least a first acoustic sensor array is mounted on an outer surface of subsea equipment being monitored and at least a second acoustic sensor array is positioned remote from the subsea equipment. The system can also include a digital data processor in communication with the plurality of acoustic sensor arrays, the digital data processor can be configured to process data from selected sensors of the plurality of acoustic sensor arrays to both selectively focus on a portion of the subsea equipment and to determine a point of origin of an acoustic signal. The system can be particularly useful in detecting leaks and other events in subsea drilling equipment.

Abstract: In accordance with embodiments of the present disclosure, systems and methods for taking acoustic/ultrasonic wave measurements of a wellbore using a downhole tool equipped with microelectromechanical (MEM) transducers are provided. The MEM transducers may include a plurality of MEM transmitters (e.g., MEM speakers) and a plurality of separate MEM receivers (e.g., MEM microphones). These MEM transducers may be disposed in arrays proximate an outer surface of the downhole tool to collect acoustic/ultrasonic wave measurements of the full circumference of a wellbore. Due to their small size, large numbers of MEM transducers may be distributed radially around the downhole tool. Such an arrangement of sensors may enable the downhole tool to perform measurements of the entire wellbore without the downhole tool needing to be rotated, leading to an increased signal-to-noise ratio of the measurements.

Abstract: An imaging tool that includes an array of pads. The array of pads are in communication with a hot terminal of a single phase electrical alternating current power source in communication with the array of pads. The single phase electrical alternating current power source includes two return electrodes. One of the return electrodes is located above the array of pads, and the other return terminal is located below the array of pads.

Abstract: Lens systems used in a gigahertz/terahertz imaging system are proposed. Each proposed lens system may include two thin lens elements, spherical or aspherical, in which combined provides gigahertz-terahertz refractive power with a small f-number. The gigahertz-terahertz waves are diverted by the lens systems in such a way that it forms an image of an object, such as a human scale object, on a planar gigahertz-terahertz image sensor. The radius of curvatures, profile, sizes, spacing, and aspherical coefficients of the lens elements may be selected to achieve quality focusing performance. The spacing between the lens elements and the spacing between the lens elements and the image sensor may be adjusted to change both the focal length and the focusing distance to achieve optimum field of view and maximum imaging resolution. The size of the lens may be scaled with the size of the object or the lens aperture stop.

Abstract: A method of determining the coal-bearing system boundary includes the following steps: firstly, determining the high-level boundaries mainly including the tectonic boundary, ore-bearing stratum and geological body distribution boundary, mixed complex boundary, etc.; secondly, determining the major boundary mainly including a fault or fault zone, giant fold or fold assemblage zone, sedimentary boundary, stratigraphic and mineral occurrence boundary, natural geography and artificial boundary, etc.. The determination of each major boundary contains the definition of its interfaces or boundaries with specific meaning among 18 types of such interfaces or boundaries. The coal-bearing system boundary is determined based on the features of the boundaries with specific meaning as well as the boundary development, mineral assemblage and spatial distribution conditions of a specific region.

Abstract: The invention claims a response surface method for identifying the parameters of Burgers model for slope soil, comprising the following steps: determine the model parameters and the level thereof; determine the parameter combination and the test sequence of the numerical test; calculate the response equation; optimally identify the model parameters. Based on the combination of the laboratory test, the numerical simulation and the field monitoring, the response surface analysis method is adopted in the invention to determine the regression equation for the parameters of Burgers model and the slope surface displacement, and meanwhile the regression analysis is adopted to establish the optimal parameter combination.

Abstract: Certain aspects pertain to a cloud detector comprising a first detector module directed to a first region of the sky and a second detector module directed to a second region of the sky. Each detector module has a tube enclosing one or more sensing elements. The one or more sensing elements of the first detector module are configured to take weather condition readings from the first region of the sky. The one or more sensing elements of the second detector module are configured to take weather condition readings from the second region of the sky. In one aspect, the cloud detector is configured to detect cloud cover based on these weather condition readings. In some cases, the one or more sensing elements comprise an infrared radiation detector (e.g., thermopile) for measuring infrared radiation intensity and a photosensor element for measuring sunlight intensity.

Abstract: The invention is related to poly(2-oxazoline-co-ethyleneimine)-epichlorohydrin copolymers and chemically-modified derivatives thereof as well as their uses in formation of non-silicone hydrogel coatings on silicone hydrogel contact lenses.

Abstract: An optical component has a surface including an optically effective area having an antireflection coating arranged thereon and an adjoining optically non-effective area having a light-shielding coating film arranged thereon. An edge portion of the antireflection coating and an edge portion of the light-shielding coating film overlap with each other to form an overlap area having a width between 0.5 ?m and 50 ?m. The antireflection coating is formed so as to show a thickness decreasing toward an edge thereof in the overlap area.

Abstract: A lighting device for a vehicle may include a light source and a first reflecting unit configured to reflect a beam emitted from the light source. The lighting device may also include a lens in which the first reflecting unit is provided on a partial area of a surface of the lens. The lighting device may also include a reflective fluorescent body configured to convert a wavelength of light reflected from the first reflecting unit; and reflect, into the lens, the wavelength-converted light reflected from the first reflecting unit. The reflective fluorescent body may be disposed on a rear side of the lens and faces a rear surface of the lens. The first reflecting unit may be disposed so as not to be linearly aligned with the light source and the reflective fluorescent body.

Abstract: The present disclosure is directed to systems for tuning nanocube plasmonic resonators and methods for forming tunable plasmonic resonators. A tunable plasmonic resonator system can include a substrate and a nanostructure positioned on a surface of the substrate. The substrate can include a semiconductor material having a carrier density distribution. A junction can be formed between the nanostructure and the substrate forming a Schottky junction. Changing the carrier density distribution of the semiconductor material can change a plasmonic response of the plasmonic resonator.

Abstract: Provided are an optical diffusion film composed of a single layer, for which the optical diffusion incident angle region can be effectively expanded, and even when the incident angle of incident light is varied within the optical diffusion incident angle region, changes in the optical diffusion characteristics can be effectively suppressed; and a method for manufacturing the optical diffusion film. Disclosed is an optical diffusion film having, inside the film, a single optical diffusion layer having a first internal structure and a second internal structure, each of which include a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index, sequentially from the lower part along the film thickness direction, and the regions having a relatively high refractive index in the first internal structure have a bent section at an intermediate point along the film thickness direction.

Abstract: An optical element comprises a light transmitting substrate (100), the light transmitting substrate comprises a first surface, and the first surface is provided with a plurality of strip-shaped prisms (200) which are arranged parallel to each other along a predetermined direction and extend along another predetermined direction. In the direction along which the plurality of strip-shaped prisms are arranged, a side of each strip-shaped prism close to a center of the light transmitting substrate has a refractive surface (201); from an end of the refracting surface close to the center of the light transmitting substrate to another end of the refracting surface close to an edge of the light transmitting substrate, the refracting surface inclines gradually along a direction away from the first surface.

Abstract: Provided herein are retroreflective colored article having a predetermined pattern of beaded and unbeaded regions and at least one polymeric color layer (130) covering at least a portion of the beaded and unbeaded regions, a reflector layer (140) covering the colour layer, and a carrier (150). Also disclosed are methods for making the articles.

Abstract: An embodiment of by the present disclosure provides a display device including a display panel, an anti-blue-light layer and a backlight module, the anti-blue-light layer is positioned between the display panel and the backlight module, and the anti-blue-light layer is capable of reflecting high-energy shortwave blue light incident from a direction of the backlight module and high-energy shortwave blue light incident from a direction of the display panel.