An electronic device, including: a display panel, including a fingerprint recognition region, the fingerprint recognition region including a central region and an edge region surrounding the central region; an optical sensor, configured to collect a fingerprint image of a target object and including a plurality of photosensitive units, wherein a projection of the optical sensor on the display panel along a direction perpendicular to the display panel is within the fingerprint recognition region; and a controller, configured to control photosensitive performance of at least one photosensitive unit corresponding to the edge region to be better than photosensitive performance of at least one photosensitive unit corresponding to the central region.

A detection device is provided and includes insulating substrate; detection element including first photodiode, first thin film transistor, second thin film transistor, and third thin film transistor; dummy element including second photodiode and first thin film transistor; and first scan line, wherein first scan line is a gate of each of first thin film transistors, dummy element is located adjacent to detection element, and dummy element includes first photodiode and none of second thin film transistor and third thin film transistor.

An image display control device according to the present invention includes a display control unit, an obtaining unit, a drawing unit, a deleting unit, and an operating unit. The display control unit displays an image on a display device. The obtaining unit obtains contact position information or proximity position information of a drawing device, which is relative to a display area of the display device. The drawing unit generates a drawn image, compose a display image of an information processing apparatus with the drawn image, and displays the composite image on the display device. The deleting unit deletes the drawn image from the displayed image, and display on the display device. The operating unit operates the information processing apparatus. The drawing device switches and specifies a generation and deletion of the drawn image, and an operation of the information processing apparatus.

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.

Generating interactive in-air images, by emitters emitting light pulses along an in-air detection plane, light detectors, lenses configured such that there is a particular angle of entry at which each detector receives maximal light intensity when pulses enter a lens corresponding to the detector at the particular angle of entry, and there are target positions in the detection plane, associated with emitter-detector pairs, whereby for each emitter-detector pair, when an object is located at the target position, then pulses emitted by the emitter are reflected by the object into the lens corresponding to the detector at the particular angle of entry, a projector projecting an image that appears, to a user suspended in the detection plane, and a processor identifying locations of the object in the detection plane and mapping the identified locations to corresponding locations in the image, to register user interactions with the image.

A touch sensing apparatus is disclosed, comprising a light transmissive panel that defines a touch surface, an opposite rear surface, and panel sides extending between the touch surface and rear surface. The panel sides define a perimeter of the light transmissive panel. The touch sensing apparatus comprises a plurality of light emitters and detectors arranged along the perimeter and adjacent the panel sides, a light guide arranged along the perimeter and having a first reflective surface comprising a diffusive light scattering element. The light emitters are arranged to emit a respective beam of light onto the diffusive light scattering element so as to generate propagating light that diffusively propagates above the touch surface, wherein the light detectors are arranged to receive detection light generated as said propagating light impinges on the diffusive light scattering element, and wherein the diffusive light scattering element is arranged at least partly outside the panel sides and extending at least partly above the touch surface.

An image display control device according to the present invention includes a display control unit, an obtaining unit, a drawing unit, a deleting unit, and an operating unit. The display control unit displays an image on a display device. The obtaining unit obtains contact position information or proximity position information of a drawing device, which is relative to a display area of the display device. The drawing unit generates a drawn image, compose a display image of an information processing apparatus with the drawn image, and displays the composite image on the display device. The deleting unit deletes the drawn image from the displayed image, and display on the display device. The operating unit operates the information processing apparatus. The drawing device switches and specifies a generation and deletion of the drawn image, and an operation of the information processing apparatus.

A lighting apparatus with an image-projecting function that is convenient for a user is provided. It includes: an illuminating unit that emits illumination light; a projection-type image display unit that emits image-projecting emission light for projecting an image; and a sensor that emits operation-detecting light for operation detection and that is capable of detecting an operation by an operation object in a range including an image projection area of the projection-type image display unit, and is configured so that the image-projecting light, and the operation-detecting emission light have respective different wavelength distribution characteristics, and regarding a light amount in the wavelength range of light used by the sensor for the operation detection, a light amount of the operation-detecting light is the largest among those of the illumination light, the image-projecting emission light, and the operation-detecting light.

A touch sensing apparatus is disclosed, comprising a light transmissive panel that defines a touch surface, an opposite rear surface, and panel sides extending between the touch surface and rear surface. The panel sides define a perimeter of the light transmissive panel. The touch sensing apparatus comprises a plurality of light emitters and detectors arranged along the perimeter and adjacent the panel sides, a light guide arranged along the perimeter and having a first reflective surface comprising a diffusive light scattering element. The light emitters are arranged to emit a respective beam of light onto the diffusive light scattering element so as to generate propagating light that diffusively propagates above the touch surface, wherein the light detectors are arranged to receive detection light generated as said propagating light impinges on the diffusive light scattering element, and wherein the diffusive light scattering element is arranged at least partly outside the panel sides and extending at least partly above the touch surface.

Systems and methods for optical imaging are disclosed. An optical sensor for imaging a biometric input object on a sensing region includes a transparent layer having a first side and a second side opposite the first side; a set of apertures disposed above the first side of the transparent layer; a first set of reflective surfaces disposed below the second side of the transparent layer configured to receive light transmitted through the first set of apertures and to reflect the received light; a second set of reflective surfaces disposed above the first side of the transparent layer configured to receive the light reflected from the first set of reflective surfaces and to further reflect the light; and a plurality of detector elements positioned to receive the further reflected light from the second set of reflective surfaces.