Abstract: A head-mounted display device includes a display, a lens group and an actuator. The display is used for generating an image light beam. The lens group is disposed between the display and a target area and is adapted to focus the image light beam to form a display image in the target area. The actuator is coupled to the display or the lens group to periodically move the display or the lens group on a plane.

Abstract: A system with sound adjustment capability is provided. The system includes a head-mounted device, a first loudspeaker and a processor. The first loudspeaker is detachable from the head-mounted device. The processor is configured to detect a plurality of positions and a plurality of orientations of the head-mounted device and the first loudspeaker to determine whether the first loudspeaker is detached from the head-mounted device. The processor is further configured to modify a first audio signal by at least one first filter or at least one second filter to generate a filtered first audio signal. The at least one first filter is used when the first loudspeaker is coupled to the head-mounted device, and the at least one second filter is used when the first loudspeaker is detached from the head-mounted device. The filtered first audio signal is configured to drive the first loudspeaker.

Abstract: A head-mounted display device includes a main body and a first simulator connected to the main body. The first simulator includes multiple nozzles, multiple air channels, a first fan, and multiple regulators. The nozzles face the user's eyes. The first fan is configured to drive external air to flow to the corresponding nozzles through the air channels. The regulators are disposed between the air channels and the corresponding nozzles to independently regulate the flow rates of air jetted from the nozzles.

Abstract: A virtual reality display includes a display module and an optical module. The display module includes a display, a liquid crystal cell, a first phase retarder, and a polarizing directional lens. The optical module includes a transflective lens, a second phase retarder, a reflective polarizer, and a lens element. The liquid crystal cell is located between the display and the first phase retarder, and the polarizing directional lens is located between the first phase retarder and the transflective lens. The transflective lens is located between the polarizing directional lens and the second phase retarder, and the reflective polarizer is located between the second phase retarder and the lens element.

Abstract: A calibration system configured to calibrate a handheld controller is disclosed. The calibration system includes a tracking camera, a displayer and a processing unit. The tracking camera is configured to capture streaming images involving the handheld controller. The displayer is configured to display a calibration test instruction. The processing unit is configured to receive first movement data generated by the handheld controller while the handheld controller moving; receive the streaming images captured by the tracking camera generated while the handheld controller moving; calculate second movement data according to the streaming images; calculate calibration parameters by comparing the first movement data and the second movement data; and, transmit the calibration parameters to the handheld controller. The calibration parameters are utilized by the handheld controller in generating a third movement data.

Abstract: A head-mounted display device includes a front-end assembly, a plurality of support arms, a plurality of counterweight parts and a plurality of brackets. The plurality of support arms are respectively connected to the front-end assembly. The plurality of counterweight parts are respectively slidably arranged to the plurality of support arms and away from the front assembly. The plurality of brackets are respectively connected to the plurality of counterweight parts and used for contacting the head of the user. The brackets are separated from each other. Each of the brackets has an upper part and a lower part. The upper parts of the brackets are adapted to support the upper part of the back of the user's head. The lower parts of the brackets are adapted to support the lower part of the back of the user's head.

Abstract: A head-mounted display device includes a base, a first lens, a second lens, a first shape memory alloy (SMA) element, and a braking element. The first lens and the second lens are movably disposed on the base. The first SMA element is connected between the base and the first lens or connected between the second lens and the first lens, and is used to move the first lens and adjust a distance between the first lens and the second lens. The braking element is disposed on the base. The braking element brakes the first lens at a braking position. The braking element is separated from the first lens at a movable position.

Abstract: A communication device includes a display device, a phase tuning layer, and a mmWave (Millimeter Wave) module. The display device includes a first display portion and a second display portion. The pixel density of the first display portion is greater than that of the second display portion. The phase tuning layer is adjacent to the second display portion. The mmWave module generates a wireless signal. The wireless signal is propagated through the second display portion and the phase tuning layer.

Abstract: A speaker module is adapted to be configured to a wearable device. The speaker module includes an enclosure and a driving unit. The driving unit is used to generate sound. The enclosure contains the driving unit. A sound sum of the sound output from a front opening, a first rear opening and a second rear opening of the enclosure has directivity. The connection vectors and the inverse vector of the connection normal vector defined by these openings are added to form a combined vector. A unit vector of the combination vector and a unit vector of a front normal vector facing outwards of the front opening are added to form a sum vector. The direction of the sum vector is the direction of the sound sum.

Abstract: A virtual reality device is provided. The virtual reality device includes a main body portion, a plurality of first-type antennas, and a plurality of second-type antennas. The main body portion has a first side eyeglass frame, a second side eyeglass frame, and a connection part. The connection part is connected to the first side eyeglass frame and the second side eyeglass frame. The second-type antennas and the corresponding first-type antennas are respectively disposed on a first side of the first side eyeglass frame, on a second side of the second side eyeglass frame, and on the connection part. The first side of the first side eyeglass frame is opposite to the second side of the second side eyeglass frame.

Abstract: A handheld controller is suitable for controlling an electronic device. The handheld controller includes a first body, a second body and a connecting portion. The first body is suitable for being held by a hand of a user. The connecting portion connects the first body and the second body. The second body is electrically connected to the first body through the connecting portion, and the connecting portion is suitable for being clamped between fingers of the user.

Abstract: The embodiments of the disclosure provide a method for determining a floor plane and a host. The method includes: determining a first plane as a reference floor plane based on motion data; in response to determining that the host has moved for a predetermined distance after determining the first plane as the reference floor plane, determining a plurality of first feature points on the reference floor plane; determining a second plane based on the first feature points on the reference floor plane; and in response to determining that the second plane meets a predetermined condition, determining the second plane as the reference floor plane.

Abstract: An antenna structure includes a first signal source, a second signal source, a first radiator, a second radiator, a third radiator, a first circuit, and a second circuit. The first signal source is used to generate a first wireless signal, and the second signal source is used to generate a second wireless signal. The first radiator is coupled to the first signal source to receive the first wireless signal, and the second radiator is coupled to the second signal source to receive the second wireless signal. The first circuit has a first end coupled to the third radiator and a second end coupled to the first radiator or the first signal source. The second circuit has a first end coupled to the third radiator and a second end coupled to the second radiator or the second signal source.

Abstract: A heat dissipation device with a communication function includes a conductive substrate, a first conductive sidewall, a plurality of heat sink elements, and a feeding element. The first conductive sidewall and the heat sink elements are respectively coupled to the conductive substrate. The feeding element is coupled to a signal source. An antenna structure is formed by the feeding element, the conductive substrate, and at least one of the heat sink elements. A resonant path of the antenna structure is formed by at least one of the heat sink elements.

Abstract: A virtual image display includes acoustic sensors and a controller, and a method is for operating the same. The acoustic sensors are for detecting the wind frequency information in the environment. The controller computes time points of the acoustic sensors receiving the wind frequency information, and computes wind direction information based on the time points.

Abstract: A motion computing system for virtual reality is provided, which comprises a wearable device and a head-mounted display. The head-mounted display performs following steps for: setting a wearing position of the wearable device; determining whether to generate a hand model having finger skeleton data for the hand of the user is found in a monitored field by a hand tracking algorithm; in response respond to that determine the hand model is found in the monitored field, identifying a device position according to the wearing position and the finger skeleton data, and identifying a device rotation of the wearable device in the monitored field according to the inertial data; calculating a pointer direction in the monitored field according to the device position and the device rotation; and generating a ray in a virtual reality field according to the pointer direction and the device position.

Abstract: A head-mounted display device assembly and an external adjustment module are provided. The head-mounted display device assembly includes a head-mounted display device and the external adjustment module. The head-mounted display device has a first lens and a second lens corresponding to both eyes, and also has a driven mechanism. The first lens and the second lens are respectively coupled to the driven mechanism. The external adjustment module is used for assembling and electrically connecting to the head-mounted display device, and includes a driving element and a transmission element. In a coupling state, the transmission element is coupled to the driving element and the driven mechanism, and the driving element drives the driven mechanism via the transmission element to adjust a distance between the first lens and the second lens. In a separation state, at least one of the driving element and the driven mechanism is separated from the transmission element.

Abstract: The embodiments of the disclosure provide an analysing method for gratings, an electronic device, and a computer readable storage medium. The method includes: determining candidate gratings; determining grating combinations based on the candidate gratings, wherein each of the grating combinations includes at least one of the candidate gratings, and the at least one of the candidate gratings in each grating combination is different from each other; determining a first diffraction response map of a first multiplexing grating corresponding to a first grating combination of the grating combinations; determining a first luminous intensity map of the first multiplexing grating corresponding to the first grating combination via modifying the first diffraction response map based on at least one parameter of a light engine; and determining a first reconstruction image corresponding to the light engine via processing a template image based on the first luminous intensity map.

Abstract: A wireless transceiving device including a main body and at least one camera lens is provided. The camera lens is detachably connected to a connection part on the main body. The camera lens includes a barrel part, a first lens, a phase matching structure, a data storage device, and an electrical connection terminal. The data storage device is configured to store specification information. When the camera lens is connected to the connection part, a wireless transmitter is coupled to the data storage device through the electrical connection terminal and reads the specification information in the data storage device. The wireless transmitter controls a plurality of transmitting phases and a plurality of transmitting powers of a plurality of transmitted wave beams according to the specification information.