Abstract: A manufacturing method of a waveguide and a head mounted display device having the waveguide are provided. The head mounted display device includes a display unit, a first waveguide and a second waveguide. The display unit is configured to provide an image beam. The first waveguide is located between the display unit and the second waveguide. The first waveguide is configured to transmit the image beam to the second waveguide and adjust a light shape of the image beam to maintain a field angle and expand a pupil in a single dimension. The second waveguide is configured to transmit the image beam to outside of the head mounted display device, and the second waveguide can extend a light transmission path and provide a uniform image beam.

Abstract: A fish identification method is provided. The fish identification method includes capturing an image through a processor, wherein the image includes a fish image. The fish identification method includes identifying a plurality of feature points of the fish image through a coordinate detection model and obtaining a plurality of sets of feature-point coordinates. Each of the plurality of sets of feature-point coordinates corresponds to each of the plurality of feature points. The fish identification method further includes calculating a body length or an overall length of the fish image according to the plurality of sets of feature-point coordinates of the image.

Abstract: A display apparatus including a circuit substrate, a plurality of light-emitting units, an optical film, a first adhesive layer and a second adhesive layer is provided. The light-emitting units are electrically bonded to the circuit substrate. The optical film overlaps the light-emitting units that are disposed between the optical film and the circuit substrate. The optical film includes a light reduction film overlapping a light-emitting surface of the light-emitting units away from the circuit substrate. The first adhesive layer is disposed between the light reduction film and the light-emitting units, and extends into interspaces between the light-emitting units. The second adhesive layer is disposed between the first adhesive layer and the light reduction film. The second adhesive layer has a first portion overlapping the light-emitting units and a second portion overlapping the interspaces. A thickness of the first portion is different from a thickness of the second portion.

Abstract: A display apparatus including a circuit substrate, a plurality of light-emitting elements, an optical film, and an adhesive layer is provided. These light-emitting elements are electrically bonded to the circuit substrate. The optical film overlaps the light-emitting elements. The light-emitting elements are disposed between the optical film and the circuit substrate. The adhesive layer is disposed between the optical film and the circuit substrate, and connects the light-emitting elements and the optical film. A cavity is provided between the light-emitting elements, the circuit substrate, and the adhesive layer.

Abstract: The disclosure provides an ultrasonic wave acupuncture device, including an ultrasonic source, a liquid lens, an ultrasonic-source controller, a liquid-lens controller, and a power supply. The ultrasonic source is adapted to generate ultrasonic waves. The liquid lens is adapted to focus the ultrasonic waves. The ultrasonic-source controller is electrically connected to the ultrasonic source and generates ultrasonic-source voltage pulses to control the frequency, amplitude, and pulse length of the ultrasonic waves generated by the ultrasonic source. The liquid-lens controller is electrically connected to the liquid lens and generates liquid-lens voltage pulses to control the focal length of the liquid lens to focus the ultrasonic waves on a specific location.

Abstract: A welding quality detection system and a welding quality detection method are provided. A detection device applies a force to at least one weld point of a first welded object or a second welded object that are welded together. A displacement detector detects a displacement signal that varies with the force or time between the first welded object and the second welded object based on the force. A detection module receives or records the displacement signal and determines whether a gap exists between the first welded object and the second welded object based on a slope of the displacement signal, so as to detect the welding quality of the weld point quickly and precisely.

Abstract: A display apparatus including a circuit substrate, a plurality of light-emitting elements, an optical film, and an adhesive layer is provided. These light-emitting elements are electrically bonded to the circuit substrate. The optical film overlaps the light-emitting elements. The light-emitting elements are disposed between the optical film and the circuit substrate. The adhesive layer is disposed between the optical film and the circuit substrate, and connects the light-emitting elements and the optical film. A cavity is provided between the light-emitting elements, the circuit substrate, and the adhesive layer.

Abstract: A computer-assisted needle insertion system and a computer-assisted needle insertion method are provided. The computer-assisted needle insertion method includes: obtaining a first machine learning (ML) model and a second ML model; obtaining a computed tomography (CT) image and a needle insertion path, generating a suggested needle insertion path according to the first ML model, the CT image, and the needle insertion path, and instructing a needle to approach a needle insertion point on a skin of a target, wherein the needle insertion point is located on the suggested needle insertion path; obtaining a breath signal of the target, and estimating whether a future breath state of the target is normal according to the second ML model and the breath signal; and outputting a suggested needle insertion period according to the breath signal in response to determining that the future breath state is normal.

Abstract: A method for locating a touched position on a touch panel acquires a sensing signal from a sensing area on the touch panel when the touch panel is touched. A determination is made as to whether the sensing signal of the sensing area on the touch panel is a touch signal and if so, sorting all the touch signals to obtain a decreasing sequence of strength of touch signals. Selection of groups of all the touch signals in the decreasing sequence is carried out according to a direction of decrease of strength, to divide all the touch areas into at least one group. Calculating a physical center of each of the at least one group, wherein the touch position of each of the groups is taken as the physical center and point of origin of the coordinates.

Abstract: An optical lens, a light-emitting device and a backlight module are provided. The optical lens is used for adjusting light emitted from a light-emitting unit. The optical lens includes a light-incident surface and a light-emitting surface. The light-incident surface encloses a space for accommodating the light-emitting unit. The light-emitting surface is used for receiving and emitting light entering the optical lens via the light-incident surface. The optical lens has an optical axis, with respect to which the light-incident surface is asymmetric.

Abstract: A welding quality detection system and a welding quality detection method are provided. A detection device applies a force to at least one weld point of a first welded object or a second welded object that are welded together. A displacement detector detects a displacement signal that varies with the force or time between the first welded object and the second welded object based on the force. A detection module receives or records the displacement signal and determines whether a gap exists between the first welded object and the second welded object based on a slope of the displacement signal, so as to detect the welding quality of the weld point quickly and precisely.

Abstract: A display device including a display panel, a film, a flexible connecting unit, a first glue, and a second glue. The film is stacked on an outer surface of the display panel and has an extension portion extending out of the outer surface. The flexible connecting unit connects to the display panel and extends out from a first end of the display panel. A gap exists between the flexible connecting unit and the extension portion while the first glue is at least partially distributed within the gap. The second glue at least partially distributed between the flexible connecting unit and the edge of the first end, and the second glue is different from the first glue.

Abstract: An optical lens, a light-emitting device and a backlight module are provided. The optical lens is used for adjusting light emitted from a light-emitting unit. The optical lens includes a light-incident surface and a light-emitting surface. The light-incident surface encloses a space for accommodating the light-emitting unit. The light-emitting surface is used for receiving and emitting light entering the optical lens via the light-incident surface. The optical lens has an optical axis, with respect to which the light-incident surface is asymmetric.

Abstract: A display device including a display panel, a film, a flexible connecting unit, a first glue, and a second glue. The film is stacked on an outer surface of the display panel and has an extension portion extending out of the outer surface. The flexible connecting unit connects to the display panel and extends out from a first end of the display panel. A gap exists between the flexible connecting unit and the extension portion while the first glue is at least partially distributed within the gap. The second glue at least partially distributed between the flexible connecting unit and the edge of the first end, and the second glue is different from the first glue.

Abstract: There is disclosed Kirigami-inspired structures for use in solar tracking applications. When coupled with thin-film active materials, the disclosed microstructures can track solar position and maximize solar power generation. In one embodiment, there is disclosed a photovoltaic system comprising a single-axis, or multi-axis solar tracking structure comprising a support structure made of a flexible material having a defined unit cell structure, and a flexible photovoltaic cell disposed on the support structure. There is also disclosed methods of making such structures in which the photovoltaic cell is mounted to the support structure by a direct-attachment bonding processes such as cold-welding.

Abstract: A display device includes a first substrate, a first polarizer, and a cover. The first polarizer is located on the first substrate, such that light passing through the first substrate irradiates out from the first polarizer. At least a portion of the cover is located on the first substrate, and the cover extends away from the first polarizer and protrudes from the first substrate. A side of the cover and a side of the first polarizer facing away from the first substrate are coplanar or not coplanar.

Abstract: A display device includes a first substrate, a first polarizer, and a cover. The first polarizer is located on the first substrate, such that light passing through the first substrate irradiates out from the first polarizer. At least a portion of the cover is located on the first substrate, and the cover extends away from the first polarizer and protrudes from the first substrate. A side of the cover and a side of the first polarizer facing away from the first substrate are coplanar or not coplanar.

Abstract: A modular structure of a fuel cell is provided, which includes a membrane electrode assembly (MEA), at least one first electrode plate, at least one second electrode plate, at least one first fixing element and at least one second fixing element. The first electrode plate is disposed at one side of the MEA and has at least one first through hole. The second electrode plate is disposed at the other side of the MEA and has at least one second through hole corresponding to the first through hole. The first fixing element and the second fixing element correspond to each other, and are joined to each other through the first through hole and the second through hole to fix the first electrode plate and the second electrode plate for the first electrode plate, the MEA and the second electrode plate to form a single cell module.

Abstract: A modular structure of a fuel cell is provided, which includes a membrane electrode assembly (MEA), at least one first electrode plate, at least one second electrode plate, at least one first fixing element and at least one second fixing element. The first electrode plate is disposed at one side of the MEA and has at least one first through hole. The second electrode plate is disposed at the other side of the MEA and has at least one second through hole corresponding to the first through hole. The first fixing element and the second fixing element correspond to each other, and are joined to each other through the first through hole and the second through hole to fix the first electrode plate and the second electrode plate for the first electrode plate, the MEA and the second electrode plate to form a single cell module.

Abstract: A display device includes a first substrate, a first polarizer, and a cover. The first polarizer is located on the first substrate, such that light passing through the first substrate irradiates out from the first polarizer. At least a portion of the cover is located on the first substrate, and the cover extends away from the first polarizer and protrudes from the first substrate. A side of the cover and a side of the first polarizer facing away from the first substrate are coplanar or not coplanar.