The present disclosure provides a terminal device. The terminal device includes a touch display layer, a fingerprint detection layer, and a shielding layer. The touch display layer includes a touch display surface. The fingerprint detection layer is arranged on a side of the touch display layer opposite the touch display surface. The shielding layer is arranged on the side of the touch display layer opposite the touch display surface. A part of the shielding layer corresponding to the fingerprint detection layer is located on a side of the fingerprint detection layer opposite the touch display layer. The shielding layer includes an electromagnetic shielding layer connected to a grounding end of the terminal device, and at least a part of the electromagnetic shielding layer is located on the side of the fingerprint detection layer opposite the touch display layer. The electromagnetic shielding layer in the terminal device can effectively protect a part of the touch display layer corresponding to the fingerprint detection layer, and prevent the part of the touch display layer corresponding to the fingerprint detection layer from being subject to electromagnetic radiation caused by the arrangement of the fingerprint detection layer, to solve a problem that the electromagnetic shielding layer fails to effectively protect the touch display layer due to an enlarged size of the fingerprint detection layer.

A unit cell for use in an optical active pixel sensor (APS) includes a photodiode having a first terminal connected to a photodiode biasing PDB line, and a second terminal opposite from the first terminal; a reset switch transistor having a first terminal connected to the second terminal of the photodiode, and a second terminal connected to a reference voltage line, and a gate of the reset switch transistor is connected to a reset signal RST supply line; and an amplification transistor having a first terminal connected to an output readout line, and a second terminal connected to a driving voltage supply line, and a gate of the amplification transistor is connected to a node constituting the connection of the second terminal of the photodiode and the first terminal of the reset switch transistor. An optical APS device includes a sensor matrix formed of a plurality of unit cells according to any of the embodiments arranged in an array of rows and columns.

A display panel includes an array substrate, a protective cover, a fingerprint identification circuit, and an optical structure. The array substrate and the protective cover are disposed oppositely, where the protective cover is located at a light exiting side of the array substrate. The fingerprint identification circuit is located at a side of the array substrate facing away or toward the protective cover and is configured to receive detection light and perform a fingerprint detection according to the detection light. The optical structure is located at a side of the protective cover facing away from the array substrate and is configured to increase a reflection amount of the detection light received by the fingerprint identification circuit.

A photo sensor, a manufacturing method thereof, and a display panel are disclosed. By an ion implantation method forming an N-type region and a P-type region on a surface of polycrystalline silicon in a same layer respectively, compatibility with an ion implantation process is ensured, while covering a layer of an amorphous silicon photosensitive layer on the polycrystalline silicon enhances light absorption ability and can increase photo-generated electron-hole pairs. Furthermore, built-in electric fields exist on a horizontal direction and a vertical direction, which can more effectively separate the electron-hole pairs to enhance photo-generated electric current to improve accuracy of fingerprint recognition.

An optical filter for an image sensor includes first opaque zones. Each of the first opaque zones occupies a surface area equal to the surface area of at least one first lens in this same first zone.

The present disclosure provides an under-screen optical fingerprint identification apparatus and a fingerprint identification method. The under-screen optical fingerprint identification apparatus comprises: a photodetection array which has a photosensitive area on which a photosensitive pixel array is provided, wherein the photosensitive pixel array comprises at least three types of pixels; and a fingerprint contact identification area located above the photodetection array and comprising a light-emitting layer and a cover layer, wherein the cover layer has a contact area, and the light-emitting layer has an identification area corresponding to the contact area, wherein the identification area comprises light-emitting units, each of which comprises a light-transmitting area and at least three light-emitting areas located therearound for emitting detection light of corresponding wavebands, wherein the detection light is reflected by an object to be identified to form signal light which passes through the filter layers and reaches corresponding three types of pixels.

Various example embodiments are directed towards systems, apparatuses, and/or methods of obtaining a reference image for optical object recognition, the method including driving a subset of light sources of a plurality of light sources, receiving, using an object recognition sensor, light reflected off a first target object, obtaining a first reference image based on the reflected light, obtaining a first target image associated with the first target object based on the reflected light, obtaining at least one first environment information using at least one environmental sensor while driving the subset of light sources, the first environment information associated with a surrounding environment, storing the first reference image and the first environment information together, and obtaining a first effective image for the first target object based on the first target image and the first reference image.

An optical fingerprint sensor with spoof detection includes a plurality of lenses; a pixel array including a plurality of first photodiodes, a line between a center of each first photodiode and an optical center of each lens forms an optical axis; at least one apertured baffle-layer positioned between the image sensor and the plurality of lenses, each having a respective plurality of aperture stops, each aperture stop being center-aligned with the optical axis; and a plurality of second photodiodes intercalated with the plurality of first photodiodes; and a color filter layer between the pixel array and the plurality of lenses, said color filter layer includes a plurality of color filters positioned such that each second photodiode is configured to detect electromagnetic energy having passed through lens, a color filter, and at least one aperture stop not aligned along the optical axis.

A display device includes: a display unit configured to display an image; a fingerprint sensing unit on one surface of the display unit and comprising fingerprint sensing pixels configured to sense a fingerprint; and a readout circuit configured to receive a fingerprint sensing signal from the fingerprint sensing pixels, wherein the readout circuit is configured to generate and output a normal fingerprint image and a dry fingerprint image, which correspond to the fingerprint sensing signal, during a fingerprint registration mode.

A display device includes a display panel, a metal plate disposed on a bottom surface of the display panel and configured to support the display panel, a filling member disposed on the bottom surface of the display panel, the filling member being disposed on the same level as the metal plate relative to the bottom surface of the display panel, and a material of the metal plate being different from a material of the filling member, a fingerprint sensor disposed on a bottom surface of the filling member, and a member-sensor bonding member disposed between the fingerprint sensor and the filling member to bond the fingerprint sensor to the filling member. A hardness of the filling member is greater than a hardness of the member-sensor bonding member.