Abstract: A first transistor, a second transistor, a third transistor, a fourth transistor are provided. In the first transistor, a first terminal is electrically connected to a first wiring; a second terminal is electrically connected to a gate terminal of the second transistor; a gate terminal is electrically connected to a fifth wiring. In the second transistor, a first terminal is electrically connected to a third wiring; a second terminal is electrically connected to a sixth wiring. In the third transistor, a first terminal is electrically connected to a second wiring; a second terminal is electrically connected to the gate terminal of the second transistor; a gate terminal is electrically connected to a fourth wiring. In the fourth transistor, a first terminal is electrically connected to the second wiring; a second terminal is electrically connected to the sixth wiring; a gate terminal is connected to the fourth wiring.

Abstract: A display method includes detecting a write operation on a display surface by a pointer, determining whether an operation button provided on the pointer is pressed or not, displaying an image corresponding to the write operation as a first image on the display surface, when the write operation is detected and it is determined that the operation button is pressed, and erasing the first image when it is determined that the operation button is not pressed during a period when the first image is displayed.

Abstract: The disclosure provides a charging base. The charging base is applied to electrically connect to an electronic device and charge a stylus. The charging base includes: a base, a connector, a first charging end conductive structure, and a second charging end conductive structure. The base includes a through-hole. The connector is disposed on one side of the base and is used for being electrically connected to the electronic device. The first charging end conductive structure is formed on an upper surface of the base and is electrically connected to the connector. The second charging end conductive structure is formed in the through-hole and is electrically connected to the connector.

Abstract: Provided is an electronic pen including an electronic pen body portion, an electronic pen housing being a cylindrical body housing the electronic pen body portion, a connector portion including a connector substrate, and a terminal portion including a base portion raised from the connector substrate in a direction crossing an axial direction and a contact portion extended to a back end side from a position separated from the connector substrate on a back end surface of the base portion, and a connector housing being a cylindrical body housing the connector portion and connected to a back end side of the electronic pen housing. A cross section of the connector housing in a direction orthogonal to the axial direction is substantially triangular. An axial center of the connector substrate coincides with an axial center of the electronic pen body portion when the connector housing is attached to the electronic pen housing.

Abstract: A gate driver includes: circuit parts having circuit elements thereon. The circuit parts are spaced apart from each other. Transparent parts are between the circuit parts. External light may pass through the transparent parts. Each of the circuit parts may include at least one circuit block. Each of the circuit blocks may be configured to perform the same function as others of the circuit blocks.

Abstract: A display apparatus includes a substrate including a display area; a first thin film transistor arranged on the display area of the substrate and having a first semiconductor layer including a silicon semiconductor and a first gate electrode insulated from the first semiconductor layer by a first gate insulating layer; a second thin film transistor arranged on the display area of the substrate and having a second semiconductor layer including an oxide semiconductor and a second gate electrode insulated from the second semiconductor layer; and a storage capacitor at least partially overlapping the first thin film transistor and having a lower electrode and an upper electrode, wherein the second semiconductor layer and one of the lower electrode and the upper electrode are arranged on a same layer.

Abstract: A pen state detection circuit that is connected to a touch sensor of a capacitance type and adapted to detect a state of an electronic pen in accordance with an output signal from the touch sensor. The touch sensor includes sensor electrodes disposed in a planar manner, and the electronic pen includes a first electrode and a second electrode. The pen state detection circuit includes a processor configured to sequentially and repeatedly: acquire first and second coordinate values in a sensor coordinate system, the coordinate system being defined on a detection surface of the touch sensor, the first coordinate values indicating a projected position of the first electrode, the second coordinate values indicating a projected position of the second electrode; calculate an inclination value indicative of an inclination of the electronic pen from the acquired first and second coordinate values in accordance with calculation rules; and output the inclination value.

Abstract: An electronic pen cartridge is mounted on a mounting part disposed in a pen-shaped casing. The electronic pen cartridge includes an electronic pen main unit and a mounting adapter. The electronic pen main unit includes a first coupling part configured to connect the mounting adapter to the electronic pen main unit in an axial center direction. The mounting adapter includes a second coupling part connected to the first coupling part of the electronic pen main unit, a third coupling part connected to the mounting part of the casing, and an elastic component that causes an elastic force to act between the mounting adapter and the electronic pen main unit in a connected state in which the second coupling part is connected to the first coupling part of the electronic pen main unit.

Abstract: An electronic device may have a display. The display may have light-emitting diode pixels or other pixels. Due to aging-induced degradation of the pixels, the output intensity and color of the pixels may vary over the lifetime of the display. Control circuitry in the device may use an ambient light sensor to measure ambient light and stray display light. The display light measurements may be used in monitoring aging effects so that the control circuitry can compensate for aging-induced pixel degradation. Display light measurements may be made over a sequence of image frames. The image frames in the sequence of frames may include white and black frames or frames of different colors interleaved with black frames. Different frame intensities may be used during measurements of stray display light to gather gamma curves for the display.

Abstract: The present disclosure provides a method and apparatus of a computer interface device using an open kinetic chain with retractable links. It comprises a two-link robot arm that rotates along a shoulder and elbow joint. Each link can also be extendable in length. The end effector stylus has a ball tip that fits into a socket on the distal end of the second link, meaning that the stylus is detachable and interchangeable. The device can achieve a very high refreshing rate and a high spatial resolution. The links, elbow joint, and shoulder joint have sensors that record linear position and rotational data, respectively, which get transmitted and processed in an MPU on the main PCB. The PCB communicates with a PC as a haptic input device. The method and apparatus improve: (1) device control accuracy and comfort; (2) refreshing rate and responsiveness; (3) device resolution and/or input area size.

Abstract: The present disclosure relates to a touch pad device and a portable computer including the same, and more particularly, to a touch pad device capable of sensing an inputted push of an object, and a portable computer including the same. A touch pad device according to one embodiment includes: a touch pad cover; a substrate disposed under the touch pad cover and including a pressure sensor; and a frame configured to support the substrate, in which a magnitude of a pressure inputted to the touch pad cover is detected on the basis of a change in electrical characteristics outputted from the pressure sensor in response to bending of the substrate.

Abstract: An electromagnetic (EM) pose tracking system includes a computer input device having a pen or stylus form factor. In some embodiments, a base station device includes one of the transmitter (Tx) or receiver (Rx) module for the EM pose tracking system while the computer input device includes the other of the TX and receiver modules. The EM pose tracking system employs the Tx and Rx modules to collect EM pose data indicating a relative pose between the Tx and Rx modules. Based on the EM pose data, the EM pose tracking system (or a computer device working with the EM pose tracking system) identifies a pose (position, orientation, or both position and orientation) of the computer input device.

Abstract: An eye tracking system for use with a head-mounted display (HMD) unit is described. The eye tracking system includes a support frame mounted to the HMD unit, a light source mounted to the support frame and configured to illuminate an area of a patient eye, a plurality of photosensors mounted to the support frame and configured to receive reflected light from different portions of the illuminated patient eye, a temperature sensor mounted to the support frame and configured to measure a temperature of the photosensors, and a processor. The processor is programmed to execute an algorithm including a processing module that compensates photosensor measurement error due to variable operating temperature in the HMD unit, and an eye-tracking module that determines a gaze position of the patient eye using a mapping between intensities of photosensors and a gaze position estimated during a calibration procedure.

Abstract: A shift register unit and a control method thereof, a gate driving circuit and a control method thereof, and a display apparatus are provided. The shift register unit includes: a first shift register coupled to an input signal terminal, a first clock signal terminal and a second clock signal terminal. The first shift register is configured to generate a first output signal based on the signal at the first clock signal terminal and generate a second output signal based on the signal at the second clock signal terminal; and a second shift register coupled to the input signal terminal and a third clock signal terminal, the second shift register is configured to generate a third output signal based on the signal at the third clock signal terminal. The first shift register includes a first control circuit, a first output circuit and a second output circuit.

Abstract: Aspects of the present disclosure are directed to a multi-sensor don/doff detection system for an artificial reality device headset. The multi-sensor don/doff detection system can use a combination of a proximity sensor, an inertial measurement unit (IMU), and an eye tracking/face tracking (ET/FT) unit to make these determinations. However, when both the ET/FT system and proximity sensor system are active, they can have system coexistence issues. Thus, only one of these systems can be used simultaneously. The multi-sensor don/doff detection system can more accurately identify don events by using input from the proximity sensor and the IMU. The multi-sensor don/doff detection system can also more accurately identify doff events by using input from the IMU and either A) the proximity sensor when the ET/FT system is disabled or B) the ET/FT system when the ET/FT system is enabled.

Abstract: The present invention refers to a method for operating an active input element and a corresponding input element, input arrangement and computer program product, comprising the steps: a) set value C of clock counter to 0 (S2); b) increase value C of clock counter by 1 and shift data in shift register (5) by one Bit, when detecting a clock information (S3); c) compare (S4) value C of clock counter with a cycle length CLL, and return to step b) if comparison result is negative or proceed to step d) if comparison result is positive; d) read data (DFIFO) from shift register (S5); e) compare (S6) said read data (DFIFO) from shift register (5) with predetermined first data value (D1), and proceed to step f) if comparison result is positive or proceed to step a) if comparison result is negative; f) write data (DIE) derived from analog input device (S) into shift register (S7) and return to step a).

Abstract: A display driver comprises signal supply circuitry and control circuitry. The signal supply circuitry is configured to supply an emission control signal to a display panel. The emission control signal controls a ratio of pixel circuits that emit light to pixels of the display panel. The control circuitry is configured to control the emission control signal based on an input image data.

Abstract: A pointing device includes an acceleration sensor, a motion sensor and a processor. The processor includes a first attitude angle calculator, a second attitude angle calculator and an attitude angle selector. When a predetermined condition is satisfied, the processor control the acceleration sensor to generate acceleration data, the first attitude angle calculator calculates a first attitude angle output according to the acceleration data, and the attitude angle selector receives the first attitude angle output as the reference data. When the predetermined condition is not satisfied, the second attitude angle calculator calculates a second attitude angle output according to angular velocity data generated by the motion sensor and the reference data, and the attitude angle selector receives the second attitude angle output as the reference data. The present disclosure also provides a control method of the pointing device.

Abstract: A gate driver includes a first shift register connected to gate lines, and configured to supply a gate signal to the gate lines in response to a first start pulse, and a second shift register connected to the gate lines and sensing control lines, and configured to supply the gate signal and a sensing signal to the gate lines and the sensing control lines in response to a second start pulse, in which the second shift register is configured to supply the second start pulse at different times in sequential frames.

Abstract: A pixel circuit includes a light emitting element, a first local light emitting switch, a second local light emitting switch, a common light emitting switch, and a driving block. The light emitting element has a first light emitting part and a second light emitting part. The first local light emitting switch is coupled between a first power terminal and the driving block. The second local light emitting switch is coupled between a second power terminal and the driving block. The common light emitting switch is coupled between the driving block and the light emitting element. The driving block provides a first driving current and a second driving current to the first light emitting part and the second light emitting part respectively based on a first frame gate signal and a second frame gate signal; a direction of the first driving current is different from that of the second driving current.