Abstract: A display device and a calibration method for the display device are provided. The calibration method includes obtaining calibration coefficients, from which a compressed approximation is determined. The display device obtains the compressed approximation data including basis vectors and reconstruction coefficients, and determines calibration data to at least partially offset a dependence of an optical throughput of the display device on a beam angle and a beam coordinate at the eyebox.

Abstract: Disclosed is an electronic pen that includes a conductive core body, a power supply circuit, a first signal generation circuit which receives power from the power supply circuit and generates a first signal, and a second signal generation circuit which receives power from the power supply circuit and generates a second signal different from the first signal, and an operation switch which sets an operation mode of the electronic pen to either a first operation mode or a second operation mode. While the operation mode of the electronic pen is set to the first operation mode, the conductive core body transmits the first signal generated by the first signal generation circuit. While the operation mode of the electronic pen is set to the second operation mode, the conductive core body transmits the second signal generated by the second signal generation circuit.

Abstract: An electronic device includes a substrate, a light emitting diode and an optical sensor. The light emitting diode is disposed on the substrate and emits a light. The optical sensor is disposed on the substrate and is configured to receive the light. The optical sensor receives the light to generate a first electrical signal for fingerprint authentication, and receives the light to generate a second electrical signal for luminance calibration of the light.

Abstract: A fingerprint detection apparatus includes a plurality of fingerprint detection units distributed in an array or disposed alternately, and each of the plurality of fingerprint detection units includes: one micro-lens configured to be disposed under the display screen; a plurality of optical sensing pixels, a center position of a photosensitive region of each of the plurality of optical sensing pixels being offset relative to a center position of the same optical sensing pixel; and at least one light shielding layer disposed between the one micro-lens and the plurality of optical sensing pixels, each of the at least one light shielding layer being provided with a hole corresponding to the plurality of optical sensing pixels. By offsetting photosensitive regions of the optical sensing pixels, the thickness of an optical fingerprint module can be reduced on the basis of improving a fingerprint identification effect on a dry finger.

Abstract: Described is a display system comprising a light source, a scanning assembly, and a controller. The light source includes a first plurality of emitters forming a column that emits a first color. The light source also includes a second plurality of emitters forming a column that emits a different color. The scanning assembly includes a reflective surface rotated by the controller using a control signal having a nonlinear, pulsed waveform. The controller drives the first plurality of emitters and the second plurality of emitters in sequence, during respective portions of the nonlinear waveform, and in synchronization with rotation of the reflective surface such that light emitted by the first plurality of emitters and the second plurality of emitters is reflected onto a same pixel of an output image. The controller also adjusts emission durations of individual emitters to compensate for changes in the rotational speed of the reflective surface.

Abstract: A display apparatus is disclosed. A display apparatus according to an embodiment of the present invention comprises: a display to display a pointer; a user input interface unit to receive a user input to move the pointer; and a controller to move the pointer while fixing the pointer in a specific direction, when real coordinates of the pointer, which are matched to the user input, are positioned in a menu region and when the user input to move the pointer is received.

Abstract: Depiction of a physical whiteboard may be captured by an image capture device. The depiction of the physical whiteboard may be detected and used to generate a virtual whiteboard. A change in the depiction of the physical whiteboard may be detected and used to change the virtual whiteboard. A virtual change to the virtual whiteboard may be received and used to change the virtual whiteboard. The change to the virtual whiteboard based on the virtual change may be projected on top of the physical whiteboard.

Abstract: A fingerprint recognition device is provided. The fingerprint recognition device includes a fingerprint sensing circuit and an image processing circuit. The fingerprint sensing circuit is configured to perform a first fingerprint sensing operation to obtain a first fingerprint image. The image processing circuit is coupled to the fingerprint sensing circuit and configured to generate a de-moire fingerprint image according to a moire pattern image and the first fingerprint image and perform a fingerprint recognition process according to the de-moire fingerprint image.

Abstract: A fingerprint identification apparatus and an electronic device are provided, which can improve the fingerprint imaging quality while achieving the lightness and thinness of the fingerprint identification apparatus. The fingerprint identification apparatus is applicable to be under a display screen, including a plurality of fingerprint identification units arranged in an array, where each fingerprint identification unit includes: a micro-lens; at least one light shielding layer, where each light shielding layer is provided with a light passing hole, a bottom light shielding layer is provided with N light passing hole, and a largest aperture D1 of each light passing hole and a largest aperture CA of the micro-lens satisfy 0.02D1/CA0.4, to form N light guiding passages in different directions; N pixel units, disposed under the at least one light shielding layer, and disposed in one-to-one correspondence with bottoms of N light guiding passages.

Abstract: An optical fingerprint sensor and an electronic device having same are provided. The optical fingerprint sensor includes a light-sensing element, an optical filter layer and an optical lens. The light-sensing element includes: a light-sensing base layer having a groove in a side surface thereof; a first light-sensing layer configured to receive visible light and arranged in the groove; and a second light-sensing layer configured to receive invisible light, and arranged between an inner wall surface of the groove and an outer wall surface of the first light-sensing layer. The optical filter layer is stacked on a side of the light-sensing element where the groove is formed. The optical lens is configured for focusing and stacked on a side of the optical filter layer facing away from the light-sensing element.

Abstract: Under-display fingerprint sensor of generating a fingerprint image disclosed. Under-display fingerprint sensor includes a light selection layer, being disposed under a display panel, configured for converting a downward circularly-polarized light into a downward linearly-polarized light, and configured for converting an unpolarized light into a sensor linearly-polarized light, a plurality of lenses, being disposed apart from the light selection layer and configured for refracting the downward linearly-polarized light and the sensor linearly-polarized light that propagate in a perpendicular direction toward each focal point, and an image sensor having a plurality of light receiving units disposed at each focal point of the plurality of lenses to receive the downward linearly-polarized light and the sensor linearly-polarized light that are refracted toward each focal point.

Abstract: A method for displaying a covering on a panoramic map image includes: acquiring covering information to be displayed, in which the covering information includes a plurality of coverings; acquiring a set of vertices of a maximum circumscribed polyhedron for each covering in a three-dimensional coordinate system of a panoramic scene; acquiring a mapped set of vertices of the maximum circumscribed polyhedron of each covering by mapping the set of vertices to a sphere; determining an overlapping result among the plurality of coverings based on the mapped set of vertices of each covering; and determining a target covering from the plurality of coverings based on the overlapping result, and displaying the target covering on the panoramic map image.

Abstract: A biometric recognition apparatus and fingerprint feature extraction method can automatically optimize parameters used for extracting a feature template from a biometric image. The biometric recognition apparatus includes: a teacher data generation unit that generates a genuine pair and an imposter pair of first and second biometric images; a learning data generation unit that uses a plurality of different temporary parameters to extract feature templates from the first biometric image and the second biometric image; and an optimum solution determination unit that calculates a score separation degree on the temporary parameter basis based on a first score representing a similarity degree of a pair of the feature templates extracted from the genuine pair and a second score representing a similarity degree of a pair of the feature templates extracted from the imposter pair and determines the temporary parameter based on a level of the score separation degree.

Abstract: A lenticular display may be formed with convex curvature. The lenticular display may have a lenticular lens film with lenticular lenses that extend across the length of the display. The lenticular lenses may be configured to enable stereoscopic viewing of the display. To enable more curvature in the display while ensuring satisfactory stereoscopic display performance, the display may have stereoscopic zones and non-stereoscopic zones. A central stereoscopic zone may be interposed between first and second non-stereoscopic zones. The non-stereoscopic zones may have more curvature than the stereoscopic zone. To prevent crosstalk within the lenticular display, a louver film may be incorporated into the display. The pixel array may have a diagonal layout and may be covered by vertically oriented lenticular lenses.

Abstract: A stitching display system includes a control device and Q displays, and Q is a positive integer greater than or equal to 2. A image processing method includes: obtaining at least one frame of initial image; splitting each initial image into Q first sub-images according to a resolution of each initial image and an arrangement of the Q displays; outputting the Q first sub-images obtained by splitting each initial image respectively to the Q displays; and displaying a first sub-image obtained by the each display according to a physical resolution of the each display.

Abstract: An input sensing device including: a power line; driving lines; a first signal line including sub-lines; a second signal line connected to the sub-lines; and sensor pixels connected to the power line, the driving lines, and the first signal line, wherein at least one sensor pixel of the sensor pixels includes: an optical sensor that transfers a photoelectrically converted charge from the power line to a first node in response to a driving signal provided through a first driving line of the driving lines; a first transistor connected between the first node and a first sub-line among the sub-lines, wherein the first transistor includes a gate electrode connected to the first driving line; and a second transistor connected between the first node and a second sub-line among the sub-lines, wherein the second transistor includes a gate electrode connected to the first driving line.

Abstract: A vehicle display system includes a vehicle detection device detecting at least one other vehicle present in surroundings of a host vehicle, a vehicle speed detection device detecting a speed of the host vehicle, a display device displaying the host vehicle and the at least one other vehicle respectively as vehicle icons, and a display control part configured to control a content of display of the display device. When the speed of the host vehicle is equal to or less than a predetermined value, the display control part is configured to blank out the display of or display transparently at least a part of a vehicle icon of a following vehicle detected by the vehicle detection device and positioned at a rear of the host vehicle in a driving lane of the host vehicle.

Abstract: A fingerprint image display means displays an input fingerprint image being a fingerprint image which is input and a registered fingerprint image being a fingerprint image which has been registered. A marker acquisition means acquires a position of an input marker which is input by a user with respect to the input fingerprint image being displayed. A marker applying means applies a correspondence marker at a position corresponding to an input marker in the registered fingerprint image. A matching means matches the input fingerprint image to which the input marker is input with the registered fingerprint image to which the correspondence marker has been applied.

Abstract: A vehicle display system includes a vehicle detection device detecting at least one other vehicle present in surroundings of a host vehicle, a vehicle speed detection device detecting a speed of the host vehicle, a display device displaying the host vehicle and the at least one other vehicle respectively as vehicle icons, and a display control part configured to control a content of display of the display device. When the speed of the host vehicle is equal to or less than a predetermined value, the display control part is configured to blank out the display of or display transparently at least a part of a vehicle icon of a following vehicle detected by the vehicle detection device and positioned at a rear of the host vehicle in a driving lane of the host vehicle.

Abstract: An apparatus for estimating bio-information may include an optical sensor comprising a light emitter disposed on a substrate, and a plurality of light receiving groups which are arranged on a plurality of concentric circles on the substrate, at different distances from the light emitter, respectively, and a processor configured to drive one of the plurality of light receiving groups that is selected based on a type of the bio-information to be estimated, and estimate the bio-information of an object based on optical signals detected by the driven light receiving group.