Abstract: An illumination system including a first light source device, a supplementary light source device, a light guide device, a light splitting device, and a light converging element is provided. The first light source device provides a first light beam, a second light beam, a third light beam, and a first compensation light beam. The supplementary light source device provides at least one compensation light beam. The light guide device comprises a first reflecting element comprising a first portion and a second portion. The light splitting device comprises a first half reflecting element located between the first light source device and the light guide device on a transmission path of the second light beam.

Abstract: A light modulation module, including a liquid crystal on silicon (LCoS) display panel and a temperature adjustment module, is provided. The LCoS display panel is disposed on a transmission path of an illumination beam and is configured to modulate the illumination beam. The LCoS display panel is disposed in the temperature adjustment module, which includes a temperature sensing element and a temperature control element. The temperature sensing element is disposed next to the LCoS display panel and is configured to sense an ambient temperature of the LCoS display panel. The temperature control element is disposed next to the LCoS display panel and is coupled to the temperature sensing element. The temperature control element controls a temperature of the LCoS display panel according to the ambient temperature. A reflective projection device is also provided, which is applied with the light modulation module and has good reliability and good projection quality.

Abstract: An optical engine module used in a projection device and configured to generate an image beam includes a housing and a plate. The housing has a surrounding side wall and a bottom wall connected to each other. The bottom wall has a first opening. The surrounding side wall has an off-state beam irradiation zone adjacent to the first opening. The first opening is configured to allow the image beam to exit. The off-state beam irradiation zone is configured to be irradiated by an off-state beam. The plate has a light receiving part and a heat dissipating part. The light receiving part is disposed in the off-state beam irradiation zone. The heat dissipating part passes through the bottom wall and extends out of the housing. A projection device adopting the optical engine module is also provided.

Abstract: An optical film set is disclosed. The optical film set including an optical film. The optical film includes a base and multiple light-guiding structures. The base has a light entrance surface and a light exit surface opposite to each other. The light-guiding structures are disposed on the light entrance surface of the base. Each of the light-guiding structures has two light-guiding surfaces opposite to each other. An included angle is between the each of the two light-guiding surfaces and a normal of the light entrance surface, and an angle range of the included angle is larger than 0 degrees and less than 25 degrees. A display device having the optical film set is also disclosed.

Abstract: A heat dissipation module is for a wheel module with a motor. The heat dissipation module includes a supporting member and a fan. The supporting member has a supporting portion, a fixing portion and connecting portions. The fixing portion is located in a ventilation hole of the supporting portion and connected to the supporting portion by the connecting portions. The fixing portion has opposite first and second side surfaces. The first side surface is connected to the motor. The fan is disposed on the second side surface. The fan has an air outlet facing the ventilation hole. On a plane parallel to the first side surface, the air outlet and the ventilation hole partially overlap, a cross-sectional area of the ventilation hole is greater than that of the fixing portion, and the cross-sectional area of the fixing portion is greater than or equal to that of the motor.

Abstract: A thermal module including a heat sink and a projector are provided. The heat sink includes a body and heat sink fins. The body includes a fixed plate and partition plates. The fixed plate has a first surface, a second surface and a third surface. The first surface is opposite to the second surface, and the third surface is connected to the first and second surfaces. Spaces form between the partition plates, and the heat sink fin is disposed correspondingly in each space. Each heat sink fin has a corrugated structure with multiple segments, and a fractured structure is provided on the surface of each segment. The third surface and the side surface connected to the end surfaces of the partition plates form an air guide surface, and the heat sink receives or discharges air flow with the air guide surface.

Abstract: The invention provides a method of generating an image recognition model and an electronic device using the method. The method includes the following. A source image is obtained; a first image is cut out of a first region of the source image to generate a cut source image; a preliminary image recognition model is pre-trained according to feature data and label data, in which the feature data is associated with the cut source image, and the label data is associated with the first image; and the pre-trained preliminary image recognition model is fine-tuned to generate the image recognition model. The method of generating the image recognition model and the electronic device provided by the invention may correctly restore an input image.

Abstract: A projection device, control method of projection device, and projection system are provided. An environment sensing module of the projection device is configured to sense a surrounding environment of the projection device to obtain sensing result. A processor of the projection device is configured to execute: determining a target theme corresponding to the surrounding environment according to the sensing result, and searching a target picture database that matches the target theme from a plurality of picture databases; selecting at least one target picture from the target picture database in response to searching out the target picture database from the plurality of picture databases; generating the at least one target picture according to the target theme in response to not searching out the target picture database from the plurality of picture databases; and enabling the projection device to project a projection image having the at least one target picture.

Abstract: A heat dissipation module configured to dissipate heat from a rotating element rotated with a first axis as a rotation axis is provided. The heat dissipation module includes at least one first fan and a heat dissipation component. The at least one first fan includes a first fan outlet. A first airflow generated by the at least one first fan flows from the first fan outlet to the rotating element. The heat dissipation component includes an inlet duct, a plurality of inner ducts and at least one outlet duct. The plurality of inner ducts are communicated to the inlet duct and the at least one outlet duct. The inlet duct of the heat dissipation component is disposed corresponding to a rotation tangential direction of the rotating element, and the rotation tangential direction is perpendicular to the first axis. In addition, a projection device is also mentioned.

Abstract: A head-mounted display apparatus including a casing, an optical engine module, an imaging module, a heat sink, a denoiser, a sensing module, and a control module. The casing includes a body part, from which extends a supporting part. The optical engine and imaging modules are disposed in the body part. An image projected by the optical engine module is displayed on the imaging module. The heat sink is disposed alongside the optical engine module. The sensing module is disposed in the supporting part to detect audio or/and vibration signals generated by the heat sink. The control module is electrically connected to the heat sink, denoiser and sensing module. The control module receives the audio or/and vibration signals detected by the sensing module and controls the denoiser to generate a reverse shock wave to eliminate the audio or/and vibration signals generated by the heat sink.

Abstract: Provided is a wavelength conversion module including a driving assembly, a metal substrate, a first and a second concave-convex structure, a transparent plate, and a wavelength conversion layer. The driving assembly is connected to the substrate and drives the substrate to rotate. The substrate and the first and the second concave-convex structure are integrally formed. The first and the second concave-convex structure are disposed around the center, and the second concave-convex structure surrounds the first concave-convex structure. The substrate has a first balance hole and an accommodating groove. The first concave-convex structure is located between the accommodating groove and the center. The first balance hole is located in the accommodating groove and penetrates the substrate. The transparent plate is disposed in the accommodating groove of the substrate and covers the first balance hole. The wavelength conversion layer is arranged in an annular pattern with the transparent plate.

Abstract: A display system, a display apparatus, and a control method thereof are provided. The display apparatus executes one of a first process and a second process to obtain an input image file. An artificial intelligence model is configured to generate a standard instruction according to the input image file. The display apparatus adjusts an operating setting of the display apparatus according to the standard instruction. The first process includes: obtaining a first original image file related to an environment of the display apparatus by driving an imaging apparatus, and using the first original image file as the input image file. The second process includes: capturing a multimedia content of the display apparatus by driving an image processing module to obtain a second original image file, and using the second original image file as the input image file.

Abstract: Disclosed are a projection device and a projection method. The projection device includes an optical engine, a distance measuring unit, and a processor. The distance measuring unit is configured to emit testing light to the target area and receive reflected light. The distance measuring unit generates multiple pieces of corresponding distance information according to the reflected lights received and multiple areas of the target area. The processor is configured to: generate area distance information according to the multiple pieces of distance information; select a mode from multiple pieces of sub-area distance information comprised by each piece of area distance information as corrected distance information corresponding to each area; and control the optical engine to project an image beam according to the corrected distance information of each area to form a projected image in the target area.

Abstract: Disclosed is a head-up display device which includes a projection module and an image light transmission module. The projection module includes an image light source and a projection lens. The image light source is disposed to provide an image beam. The projection lens has a lateral chromatic aberration of a projection lens. The image light transmission module includes an optical waveguide element and an optical lens and has a lateral chromatic aberration of an image light transmission. The optical waveguide element is disposed on a transmission path of the image beam from the projection lens and guides the image beam to form a display beam. The lateral chromatic aberration of the projection lens is a reverse chromatic aberration. The lateral chromatic aberration of the image light transmission module is a positive chromatic aberration. The head-up display device disclosed makes the display image have good optical quality.

Abstract: A projection device and a projection method thereof are provided. The projection device includes an optical engine, a ranging unit, and a processor. The optical engine projects an image beam to a target area to form a first image. The ranging unit emits testing light beams, detects reflected light beams reflected from the testing light beams, and obtains effective sensing information from the reflected light beams. The processor is coupled to the ranging unit and the optical engine, receives the effective sensing information from the ranging unit, and generates first projection distance information according to the effective sensing information. The processor controls the optical engine so that the first image corresponding to the image beam is located within an effective focal length range of the projection device.

Abstract: The disclosure provides a projection system and a projection method. The projection system includes a projection device. The projection device includes a projection module, a controller, and an audio player. The controller is coupled to the projection module. The audio player is coupled to the controller. When the controller executes the prepare-for-sleep mode, the controller operates the projection module to dim a projection beam or to project a predetermined projection image and operates the audio player to play a predetermined sound.

Abstract: A projection device and an image processing module are provided. The image processing module is configured to receive an image signal. The image signal includes multiple sub-image signals. Each of the sub-image signals corresponds to multiple pixels. The pixels form a pixel shifting unit. The image processing module generates flicker data based on contrast in the pixel shifting unit, and generates an output image signal based on the flicker data and a first brightness signal corresponding to brightness of the image signal.

Abstract: A projector system, including a first projector and at least one second projector, is provided. The first projector broadcasts first data to each of the at least one second projector in response to a first input operation applied to a first input/output unit. A second processor of each of the at least one second projector broadcasts corresponding second data to other projectors among multiple projectors in response to receiving the first data. Each of the projectors determines whether there is an up-to-date firmware file according to the first data and the at least one second data to transmit the up-to-date firmware file to corresponding at least one other projector among the projectors. Each of the at least one other projector receives the up-to-date firmware file to perform a firmware update.

Abstract: A projection system and a control method are provided. The projection system includes an image control device and a projector. The image control device stores an application and includes a first communication port. The image control device is configured to execute the application to generate a control signal. The first communication port includes at least one of a teletype serial (TTYS) interface and a universal serial bus (USB) interface. The image control device is configured to transmit the control signal to a second communication port of the projector through the first communication port, so that the projector executes a function corresponding to the control signal.

Abstract: A heat-dissipating module including heat-dissipating fins and heat pipes is provided. The heat-dissipating fins include first and second heat-dissipating fins arranged in an interleaved, spaced apart manner, and arranged in parallel along a first direction. The first heat-dissipating fins have interleaved first vias and first breach holes. The second heat-dissipating fins have interleaved second vias and second breach hole. The first breach holes and the second breach holes are arranged along a second direction, and the second vias respectively correspond to the first vias. The first direction is not parallel to the second direction. The heat pipes are configured to pass through the first vias and the second vias. A position of the orthogonal projection of a first breach hole formed on the second heat-dissipating fins along the first direction and the corresponding second breach hole are not overlap or are partially overlapped, and are arranged in symmetry.