Abstract: An electronic pen of an electromagnetic coupling type has a resonant circuit that includes a coil and that is configured to indicate a position to a position detection sensor through electromagnetic coupling between the resonant circuit and the position detection sensor. The electronic pen includes an electronic pen main body and a pen tip unit configured to be detachable from the electronic pen main body. The pen tip unit includes a pen tip casing in which at least the coil is housed. The electronic pen main body includes a circuit portion of the resonant circuit that is electrically coupled to the coil housed in the pen tip unit when the pen tip unit is attached to the electronic pen main body.

Abstract: The touch-and-display panel includes multiple sensing electrodes in the display area. A circuit is disposed in the non-display area and electrically connected to the sensing electrodes through sensing lines. A peripheral electrode is disposed in the non-display area. In a display period, the circuit applies a common voltage to the sensing electrodes through the sensing lines. In a touch sensing period, the circuit transmits a touch sensing signal to the sensing electrodes through the sensing lines, and determines whether each of the sensing electrodes is touched based on capacitance of the sensing electrodes. In a stylus sensing period, the circuit transmits an uplink signal to the sensing electrodes and the peripheral electrode, and receives a downlink signal from the active stylus through the sensing electrodes, and determines a stylus location corresponding to the active stylus according to the downlink signal.

Abstract: A communication interface that can decrease a transmission time between a touch driving circuit and a touch controller at the time of performing a pen touch sensing operation is provided. The touch display device can include a touch panel in which touch electrodes are arranged; a touch controller that outputs a first master signal to a first master pin corresponding to one end of a first interface, outputs a second master signal to a second master pin corresponding to one end of a second interface, receives first slave data from the first master pin, and receives second slave data from the second master pin; and a touch driving circuit that receives the first and second master signals, and outputs the first slave data to a first slave pin and outputs the second slave data to a second slave pin in response to the first master signal and the second master signal.

Abstract: A touch panel, a touch display panel and a touch display device are provided. The touch panel includes a capacitive touch electrode and an electromagnetic touch electrode. The capacitive touch electrode includes a first mesh pattern, the first mesh pattern includes a plurality of first mesh lines, the plurality of the first mesh lines are intersected with each other, the electromagnetic touch electrode is insulated from the capacitive touch electrode and includes a second mesh pattern, and the second mesh pattern includes a plurality of second mesh lines, the plurality of the second mesh lines are intersected with each other.

Abstract: A Near-Eye-Display (NED) devices that translates combinations of user gaze direction and predetermined facial gestures into user input instructions. The NED device includes an eye tracking system and a display that renders computer-generated images within a user's field-of-view. The eye tracking system may continually track the user's eye movements with a high degree of accuracy to identify specific computer-generated images that a user is focused on. The eye tracking system may also identify various facial gestures such as, for example, left-eye blinks and/or right-eye blinks that are performed while the specific computer-generated images are being focused on. In this way, NED devices are enabled to identify combinations of user gaze direction and predetermined facial gestures and to translate these identified combinations into user input instructions that correspond to specific computer-generated images.

Abstract: A source driver and a calibration method thereof are provided. The source driver for driving and sensing a display panel of the disclosure includes a sensing circuit, an analog-to-digital converter circuit and a digital arithmetic circuit. The sensing circuit is configured to receive a reference signal through a sensing channel when the source driver is operated in a calibration mode. The analog-to-digital converter circuit is coupled to the sensing circuit, and configured to convert the reference signal to a digital reference signal. The digital arithmetic circuit is coupled to the analog-to-digital converter circuit, and configured to obtain a calibration parameter according to the digital reference signal. The source driver calibrates a sensing path for sensing a display panel according to the calibration parameter when the source driver is operated in a sensing mode.

Abstract: The invention relates to methods for acting on augmented reality virtual objects. The coordinates of a device for creating and viewing augmented reality are determined in relation to a real-world physical marker by means of analysis of an image from a camera of the device; a virtual camera is positioned in calculated coordinates of the device in relation to a physical base coordinate system in such a way that the marker, which is visible to the virtual camera, is positioned in the field of vision thereof, just as the physical marker is positioned in the field of vision of the device camera; light sources captured by the camera of the device can be used as the physical marker; a vector is calculated corresponding to a direction from the marker to the virtual camera; information is generated relating to all camera movements. A system of preliminary image processing is implemented.

Abstract: Systems, methods, and computer readable media to detect and track a user's eye gaze and head movement are described. In general, techniques are disclosed for identifying a user's pupil location and using this information, in conjunction with a three dimensional (3D) model of the user's head, perform gaze tracking operations. More particularly, techniques disclosed herein utilize pupil gradient information to refine an initial pupil location estimate. Once identified, the pupil's location may be combined with 3D head pose information to generate an accurate and robust gaze detection mechanism.

Abstract: The present disclosure discloses an electromagnetic film outlet structure, a direct-type backlight display module and a display.

Abstract: An electronic apparatus includes a window, a display panel disposed under the window, and a digitizer disposed under the display panel. The digitizer includes a photosensitive resin layer including a front surface and a rear surface opposite to the front surface, and a plurality of sensing coils disposed inside the photosensitive resin layer. The front surface is relatively flat compared with the rear surface.

Abstract: A sensor includes a first substrate on a back side of a display panel, a first coil extending in a first direction at a predetermined angle between 0 and 90 degrees with respect to a long-side direction of the first substrate and including a first long-side portion provided with first and second end portions, a second coil including a second long-side portion extending in a second direction, a first leader line including a first end and a second end, wherein the first end is connected to the first end portion, and the second end is connected to wiring on a second substrate arranged to extend at a right angle toward the outside of the sensor from one side of the first substrate, and a second leader line including first end connected to the end portion and a second end connected to the wiring on the second substrate.

Abstract: Provided are a touch display device and a touch circuit that can effectively simultaneously sense a plurality of pens in a predetermined touch frame time (a driving time) by simultaneously performing sensing of pen information and sensing of a pen position using pen data.

Abstract: A backplane suitable to pulse width modulate an array of emissive pixels with a current that is substantially constant over a wide range of temperatures. A current control circuit provides means to provide a constant current to an array of current mirror pixel drive elements. The current control circuit comprises a thermally stable bias resistor and a thermally stable band-gap voltage source to provide thermally stable controls and a large L p-channel reference current FET with an associated large L n-channel bias FET configured to provide a reference current at a required voltage to the gate of a large L p-channel current source FET. The current control circuit and the current mirror pixel drive elements are similar circuits with one current control circuit able to control a substantial number of pixel drive elements.

Abstract: An electromagnetic induction type coordinate positioning apparatus is provided. The apparatus includes a first induction coil, a second induction coil, a trigger circuit, and a control circuit. The first induction coil is flowed through a first current signal, and the first induction coil is configured to sense a pointer device when the electromagnetic induction type coordinate positioning apparatus is in a sleep mode, and generate a first induction signal when detecting the pointer device. The second induction coil is flowed through a second current signal, and the first induction coil is configured to sense and communicate with the pointer device when in an operating mode. The trigger circuit sends an interrupt signal according to the first induction signal. The control circuit interrupts the sleep mode according to the interrupt signal and switches to the operating mode. The control circuit in the operating mode controls the second control signal to flow through the second induction coil.

Abstract: A processing system configured to receive a first display control signal corresponding to a non-display update period of a display frame and a second display control signal corresponding to a display update period of the display frame. The processing system is further configured to acquire, based on receipt of the first display control signal, first resulting signals from sensor electrodes electrically connected to the sensor driver by operating the sensor electrodes for a first type of input sensing during a first period overlapping with at least a portion of the non-display update period. Further, the processing system is configured to acquire, based on receipt of the second display control signal, second resulting signals with the sensor electrodes by operating the sensor electrodes for a second type of input sensing during a second period overlapping with at least a portion of the display update period.

Abstract: A sensing panel includes a sensing base layer, a first group of fingerprint sensing pixels disposed on a first region of the sensing base layer and connected to a plurality of fingerprint scan lines and a plurality of first fingerprint receiving lines, and a first pen sensing pixel disposed on a second region of the sensing base layer and connected to a pen scan line, a first pen transmission line, and a first pen receiving line. The first pen sensing pixel includes a first sensing coil surrounding the first region of the sensing base layer on which the first group of fingerprint sensing pixels are disposed. A portion of the first sensing coil is adjacent to a first fingerprint sensing pixel of the first group of fingerprint sensing pixels.

Abstract: A position detection device includes a sensor having first electrodes arranged in a first direction, and second electrodes arranged in a second direction, and signal processing circuitry configured to detect a position indicated by each of a first pointer and a second pointer on the sensor. Each of the first and second electrodes is formed as a loop electrode. Selection circuitry of the signal processing circuitry is configured to select the first and second electrodes such that an electric current is induced in each of the first and second electrodes to enable a position indicated by the first pointer on the sensor to be detected through electromagnetic induction, and select the first and second electrodes such that an electric current is not induced in each of the first and second electrodes to enable a position indicated by the second pointer on the sensor to be detected through capacitive coupling.

Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.

Abstract: An electromagnetic induction type coordinate positioning apparatus includes a first induction coil, a second induction coil, a first impedance circuit, a second impedance circuit, and a control circuit. The first induction coil and the first impedance circuit form a first excited current signal and the second induction coil and the second impedance circuit form a second excited current signal. The control circuit controls a first impedance value of the first induction coil to conform to a first predefined value and controls a second impedance value of the second induction coil to conform to a second predefined value, so that a first excited current signal reaching a first predefined level is formed on a current path between the first impedance circuit and the first induction coil, and a second excited current signal reaching a second predefined level is formed on a current path between the second impedance circuit and the second induction coil.

Abstract: A pen detection unit and a display device including a pen detection panel. The pen detection panel includes a plurality of sensor parts, and each of the sensor parts includes a first loop antenna and at least one transistor connected to the first loop antenna. A pen driving circuit detects a position of a pen, based on a sensing signal received through the first loop antenna in a first mode, and transfers the sensing signal to an external electromagnetic induction device in a second mode different from the first mode.