The present disclosure provides a pixel circuit and a drive method thereof, and a touch display apparatus. The pixel circuit includes a pixel driving circuit, an optical sensing circuit, and a light-emitting element. The pixel driving circuit is configured to drive the light-emitting element to emit light, based on a first control signal from a first control line, a second control signal from a second control line, a scanning signal from a scanning line, and a data signal from a data line. The optical sensing circuit is configured to sense an optical signal, convert the sensed optical signal into an electric signal, and output the electric signal via a reading line based on the first control signal, the second control signal, the scanning signal, and the data signal.

The present disclosure provides a pixel circuit and a drive method thereof, and a touch display apparatus. The pixel circuit includes a pixel driving circuit, an optical sensing circuit, and a light-emitting element. The pixel driving circuit is configured to drive the light-emitting element to emit light, based on a first control signal from a first control line, a second control signal from a second control line, a scanning signal from a scanning line, and a data signal from a data line. The optical sensing circuit is configured to sense an optical signal, convert the sensed optical signal into an electric signal, and output the electric signal via a reading line based on the first control signal, the second control signal, the scanning signal, and the data signal.

An under display light field sensor is for sensing a fingerprint or touch on or in proximity to a display panel. The under display light field sensor includes a light-field image sensor and a plurality of micro-lenses on the subarrays of the sensing pixels. The light-field image sensor includes a plurality of subarrays of sensing pixels under the display panel. The sensing pixels in an identical one of the subarrays are configured to capture images of an object on or in proximity to the display panel by sensing lights from different directions. Each of the micro-lenses corresponds to one of the subarrays of the sensing pixels.

An under display light field sensor is for sensing a fingerprint or touch on or in proximity to a display panel. The under display light field sensor includes a light-field image sensor and a plurality of micro-lenses on the subarrays of the sensing pixels. The light-field image sensor includes a plurality of subarrays of sensing pixels under the display panel. The sensing pixels in an identical one of the subarrays are configured to capture images of an object on or in proximity to the display panel by sensing lights from different directions. Each of the micro-lenses corresponds to one of the subarrays of the sensing pixels.

The present disclosure relates to an electronic device. The electronic device includes a device body, a screen, and a photo-sensing module. The preset light-transmissive area is provided between the screen and a side casing of the device body. A light emitter of the photo-sensing module is mounted at an edge position of the device body and corresponds to the preset light-transmissive area, and the light emitter can emit a light through the preset light-transmissive area towards a sensing space corresponding to a front side of the device body for sensing.

A display panel includes a display pixel configured to irradiate light, an image sensor pixel included together with the display pixel in one unit pixel, including a thin film transistor (TFT) photodetector including an active layer formed of amorphous silicon or polycrystalline silicon on an amorphous transparent material, and configured to collect light reflected from a body located on the transparent material, and a processor configured to process biometrics along with positioning of the body according to the light reflected from the body.

A projector includes an imaging section configured to generate imaging data obtained by taking an image of first infrared light with a first wavelength emitted by a first pointing member, second infrared light with a second wavelength emitted by a second pointing member, and a target range, and a position detection section for detecting a first position and a second position with respect to the target range based on the imaging data so as to be distinguished from each other, and the imaging section includes a sensor configured to output detection values of first colored light, second colored light, and third colored light to generate the imaging data including the detection values obtained by detecting the first infrared light and the second infrared light with the sensor.

A method for identifying a fingerprint, a fingerprint identification apparatus and an electronic device are provided. The method includes: acquiring light signals in multiple directions reflected via a sampled object above a display screen; generating a plurality of two-dimensional 2D fingerprint images respectively based on the light signals; determining whether the sampled object is a three-dimensional 3D object based on the plurality of 2D fingerprint images; and if the sampled object is the 3D object, performing fingerprint identification based on at least one of the plurality of 2D fingerprint images. A distinction between a 2D object and a 3D object is effectively achieved through the light signals in the multiple directions, and when the sampled object is a 3D object, subsequent fingerprint identification is performed, which fundamentally avoids performing the fingerprint identification based on a fake fingerprint captured by a 2D object, thereby improving security of the fingerprint identification.

Touch detection may include determining, based on data from an IMU on a first device that monitors movement of a touching object, a touch event, wherein the touch event indicates contact between the touching object and a surface, obtaining a depth image captured by a second device, comprising a touch image, determining a touch point of the object based on the touch image, and providing a response based on the touch point of the object and the touched surface.

A detection module for a display device includes: a substrate; a detector disposed on the substrate to detect an external signal; a sensor driving circuit disposed on the substrate to drive the detector; and a light shielding layer to block an external light from entering the sensor driving circuit and to receive a light blocking voltage.