Abstract: A transparent projection film structure is provided. The transparent projection film structure includes a substrate layer and multiple light-guiding microstructures disposed on the substrate layer. Each microstructure has at least one inclined surface. The included angle between the inclined surface and the substrate layer defines the first angle. The microstructures are arranged along a direction defined by the first axis and along a direction defined by the second axis. The transparent projection film structure also includes multiple reflective layers disposed on the light-guiding microstructures. The included angle between one side of the orthographic projection of each light-guiding microstructure on the substrate layer and the first axis defines the second angle, which is variable and ranges from ?35°0 to +35°.

Abstract: A lens with micro-structures include a lens body and a plurality of micro-structures. The lens body has a bottom surface and a curved surface. The micro-structures are disposed on the curved surface of the lens body. Each of the micro-structures has a circular outer edge. In view from atop of the lens body, center points of the circular outer edges of the micro-structures are located at a same position. The circular outer edges are arranged at equal intervals.

Abstract: A light-emitting array module includes a light source array and microlens units disposed on the light source array. The light source array includes light-emitting elements arranged in an array. Each microlens unit includes a microlens, a stray light guiding layer, and a stray light reflecting layer. The stray light guiding layer is disposed at a side surface of the microlens. A refractive index of a medium or space at an outer side of the stray light guiding layer is less than a refractive index of the stray light guiding layer. The stray light reflecting layer is disposed at a side of the stray light guiding layer adjacent to the light source array. Light emitted by the light-emitting elements corresponding to the microlens units and reflected into the stray light guiding layer by the stray light reflecting layer undergoes total internal reflection on a surface of the stray light guiding layer.

Abstract: A transparent projection film structure is provided. The transparent projection film structure includes a base layer and a patterned light-guiding layer disposed on the base layer. In a cross-sectional view, the patterned light-guiding layer has light-guiding units, and hollow areas are formed between the light-guiding units. The transparent projection film structure also includes a scattering layer disposed on the base layer and includes scattering particles. At least some of the scattering particles correspond to the patterned light-guiding layer.

Abstract: A floating image display device includes a light source module, a periodical optical structure and a blocking layer. The light source module generates light. The periodical optical structure includes lenses, and the light passes through the periodical optical structure and forms a floating image. The blocking layer is configured to block or absorb a part of the light, and the blocking layer is between any adjacent two lenses. A beam angle of another part of the light not blocked or absorbed by the blocking layer ranges between angles ? and ?, and the following conditions are satisfied: ?=tan?1 (d/h); and ?=2 tan?1 (d/2h), wherein ? is an off-axis viewing angle, ? is an on-axis viewing angle, d is a maximum width of an aperture corresponding to each lens, and h is a distance from the light source module to the aperture.

Abstract: A light field display module including a light field display layer, an adjustment layer, and an image forming layer is provided. The light field display layer is configured to form a light field image beam. The adjustment layer is disposed on a path of the light field image beam, and configured to adjust the light field image beam. The image forming layer is disposed on the path of the light field image beam from the adjustment layer, and configured to change a position of a light field image by changing a direction of the light field image beam. The image forming layer has multiple optical micro-structures.

Abstract: A floating image display device includes a light source module, a periodical optical structure and a blocking layer. The light source module generates light. The periodical optical structure includes lenses, and the light passes through the periodical optical structure and forms a floating image. The blocking layer is configured to block or absorb a part of the light, and the blocking layer is between any adjacent two lenses. A beam angle of another part of the light not blocked or absorbed by the blocking layer ranges between angles ? and ?, and the following conditions are satisfied: ?=tan?1 (d/h); and ?=2 tan?1 (d/2h), wherein ? is an off-axis viewing angle, ? is an on-axis viewing angle, d is a maximum width of an aperture corresponding to each lens, and h is a distance from the light source module to the aperture.

Abstract: A floating image display device comprises a floating image display module and a signal processing module. The floating image display module has a first upper assembling surface and a first lower assembling surface, and comprises a first pin located on the first lower assembling surface. The floating image display module is configured to form a floating image. The signal processing module has a second upper assembling surface and a second lower assembling surface, and comprises a plurality of second pins located on the second upper assembling surface. One of the plurality of second pins is detachably connected to the first pin. The signal processing module is configured to identify the floating image display module according to the position of the first pin corresponding to the plurality of second pins, and transmit a display signal associated with the floating image to the floating image display module through the first pin.

Abstract: A floating image display device comprises a floating image display module and a signal processing module. The floating image display module has a first upper assembling surface and a first lower assembling surface, and comprises a first pin located on the first lower assembling surface. The floating image display module is configured to form a floating image. The signal processing module has a second upper assembling surface and a second lower assembling surface, and comprises a plurality of second pins located on the second upper assembling surface. One of the plurality of second pins is detachably connected to the first pin. The signal processing module is configured to identify the floating image display module according to the position of the first pin corresponding to the plurality of second pins, and transmit a display signal associated with the floating image to the floating image display module through the first pin.

Abstract: A light source module includes a light source and a light guide plate. The light guide plate has a light entrance surface, a light exit surface, and a bottom surface. The light entrance surface faces the light source and is located between the light exit surface and the bottom surface. The bottom surface is opposite to the light exit surface and has a plurality of microstructures. The microstructures are a plurality of ridge-shaped microstructures formed in the light guide plate. Each of the microstructures includes a light-facing surface, and a first included angle between the light-facing surface and the bottom surface is 30 degrees to 70 degrees.

Abstract: A touch feedback device includes an optical imaging module, an air supplying module, a sensing module, and a signal processing module. The optical imaging module generates a first floating image. The air supplying device forms an airflow field at the outline and/or around the first floating image. The sensing module is configured to sense the change of the airflow field, including the amount of airflow, the air pressure or the speed of airflow caused by the detected object to correspond to a position information. The signal processing module is configured to determine when the position information is inside the preset trigger area of the first floating image outline area, generates at least one feedback command, wherein the at least one feedback command is sent to the optical imaging module to let the optical imaging module generate a second floating image that is different than the first floating image.

Abstract: A touch feedback device includes an optical imaging module, an air supplying module, a sensing module, and a signal processing module. The optical imaging module generates a first floating image. The air supplying device forms an airflow field at the outline and/or around the first floating image. The sensing module is configured to sense the change of the airflow field, including the amount of airflow, the air pressure or the speed of airflow caused by the detected object to correspond to a position information. The signal processing module is configured to determine when the position information is inside the preset trigger area of the first floating image outline area, generates at least one feedback command, wherein the at least one feedback command is sent to the optical imaging module to let the optical imaging module generate a second floating image that is different than the first floating image.

Abstract: A light source module includes a light source and a light guide plate. The light guide plate has a light entrance surface, a light exit surface, and a bottom surface. The light entrance surface faces the light source and is located between the light exit surface and the bottom surface. The bottom surface is opposite to the light exit surface and has a plurality of microstructures. The microstructures are a plurality of ridge-shaped microstructures formed in the light guide plate. Each of the microstructures includes a light-facing surface, and a first included angle between the light-facing surface and the bottom surface is 30 degrees to 70 degrees.

Abstract: A device and a method for generating floating images are provided. An optical imaging module generates a first floating image. A sensing module sends a detection signal to sense first position information of a tested object at a first time point, and generates a feedback signal according to the first position information when the first position information is within a contour range of the first floating image. A signal processing module is electrically connected to the optical imaging module and the sensing module to receive the feedback signal and generate at least one control command and/or at least one feedback command corresponding to the feedback signal. The at least one control command is transmitted to a controller to perform corresponding control on the controller, and the at least one feedback command is transmitted to the optical imaging module, so that the optical imaging module generates a second floating image different from the first floating image.

Abstract: A device and a method for generating floating images are provided. An optical imaging module generates a first floating image. A sensing module sends a detection signal to sense first position information of a tested object at a first time point, and generates a feedback signal according to the first position information when the first position information is within a contour range of the first floating image. A signal processing module is electrically connected to the optical imaging module and the sensing module to receive the feedback signal and generate at least one control command and/or at least one feedback command corresponding to the feedback signal. The at least one control command is transmitted to a controller to perform corresponding control on the controller, and the at least one feedback command is transmitted to the optical imaging module, so that the optical imaging module generates a second floating image different from the first floating image.