Abstract: A display apparatus includes a multiplicity of picture elements for emitting visible light in different colors in an adjustable manner by means of a plurality of semiconductor layer sequences. Each of the picture elements has a plurality of types of pixels and each type of pixels is configured for emitting light of a specific color. The pixels are each subdivided into a plurality of sub-pixel. All the sub-pixels are configured for emitting light of the same color out of the display apparatus without further color change. At least two sub-pixels within each pixel have emission areas of different sizes. An electrical control unit is assigned to each pixel. The control units are each configured to automatically control the sub-pixels of a relevant pixel depending on an energization intensity in such a way that a light-emitting area of the relevant pixel increases in stepped fashion with the energization intensity.

Abstract: A display device according to an embodiment of the present disclosure includes pixels connected to a first scan line, a second scan line, a third scan line, a data line, a first emission control line, and a second emission control line.

Abstract: An interframe difference processor 206 generates a difference image between frames of a sensor image, and an image processor 208 generates distance information indicating a distance to a photographic subject on the basis of calculation of a difference image and a developing pattern 1101. Thus, since a video display apparatus 101 generates the difference image between the frames of the sensor image, it is possible to realize a distance measuring apparatus capable of reducing an influence of a background and generating distance information with high accuracy.

Abstract: A display driver includes an amplifier circuit that outputs an output current based on a differential signal indicating a difference between a gradation voltage corresponding to a video signal and an output voltage to a source line of a display panel, thereby supplying the output voltage to the source line. An output current detection circuit generates a mirror current by copying the output current, and outputs an output current detection signal representing the mirror current. A failure determination circuit determines whether a failure is occurring or has occurred in the source line or not by comparing the level of the output current detection signal with a prescribed threshold value. The output current detection circuit includes a transistor that generates a mirror current by receiving the differential signal at a gate thereof, and a variable resistance that generates an output current detection signal upon receiving the generated mirror current.

Abstract: The present disclosure provides a pixel circuit, a display panel, and a display device. The pixel circuit includes: a first switch circuit, a second switch circuit, a driving circuit, a first gate line, a first data line, a second gate line, and a second data line. The first switch circuit has a control terminal connected to the first gate line, a first terminal connected to the first data line, and a second terminal connected to a control terminal of the driving circuit; the second switch circuit has a control terminal connected to the second gate line, a first terminal connected to the second data line, and a second terminal connected to the control terminal of the driving circuit; and the first gate line and the second data line extend along a first direction, the second gate line and the first data line extend along a second direction.

Abstract: A method of leakage-compensated global illumination comprises obtaining position data for at least one of a head or an eye of a user of a display system by an application processor, rendering image data for an image frame by the application processor based on the position data, modifying the image data to compensate for leakage associated with a global illumination by a display of the display system, and sending the image data to a display driver circuit of the display system for displaying the image frame on the display through the global illumination.

Abstract: A pixel comprising a light emitting unit comprising at least one light emitting element; a pixel circuit for supplying current to the light emitting in response to a data signal; a sensing transistor electrically connected between a data line and a first node that is a common node of the light emitting unit and the pixel circuit; and a control transistor electrically connected between a scanning line and a gate electrode of the sensing transistor.

Abstract: A sub-pixel circuit, and an active electroluminescence display and a driving method thereof are provided. The sub-pixel circuit includes at least one electroluminescence device, and at least one first driving transistor or at least one second driving transistor and at least one third driving transistor coupled with the at least one electroluminescence device. A cathode of the electroluminescence device is coupled with a power source, an anode of the electroluminescence device is coupled with an output terminal of the first driving transistor, an input terminal of the first driving transistor is coupled with a signal line, and a control terminal of the first driving transistor is coupled with a scan line. Alternatively, the anode of the electroluminescence device is coupled with an output terminal of the second driving transistor, an input terminal of the second driving transistor is coupled with an output terminal of the third driving transistor.

Abstract: A method of operating a display device includes: receiving image data at an input frame frequency; generating a modulated clock signal by modulating an input clock signal according to a modulation frequency; randomly selecting an output frame frequency within a data frequency selection range, the input frame frequency being within the data frequency selection range; determining an output start timing of the image data based on the output frame frequency; initiating, at the output start timing, output of the image data in synchronization with the modulated clock signal; and displaying an image based on the outputted image data.

Abstract: Input or control device has a flat capacitively, or resistively, or inductively, or optically, or acoustically evaluated touch layer (2), which is continuously spread over the control zone (1), and also has a graphic layer (3) with a graphical representation of at least one button (4) and/or a key (5) and/or some other control element. Graphic layer (3) is adapted for removal and replacement with at least one different graphic layer, while the first graphic layer (31) and at least one other different graphic layer (32) have different number, and/or shape, and/or layout, and/or graphical representation of the button (4), and/or key (5), and/or some other control element. Evaluation unit (6) is interconnected with the touch layer (2) and is adjusted to the different evaluation of a touch, based on the current graphic layer (3). The graphic layer (3) can be located under or on top of the touch layer (2).

Abstract: Wearable electronic devices that employ one or more contact sensors (e.g., capacitive sensors and/or biometric sensors) are described. Contact sensors include electromyography sensors and/or capacitive touch sensors. Capacitive touch sensors include single-frequency capacitive touch sensors, recently-proposed swept frequency capacitive touch sensors, and a generalized version of swept frequency capacitive touch sensors referred to as multi-frequency capacitive touch sensors. The contact sensors are integrated into various devices, including generic watchstraps that may be substituted for the existing watchstrap in any wristwatch design, generic watch back-plates that may be substituted for the existing back-plate in any wristwatch design, and wearable electromyography devices that provide gesture-based control in a human-electronics interface.

Abstract: A touch sensor may include a substrate, a drive electrode on the substrate, a sense electrode on the substrate, and a deformable snap member disposed over the drive electrode and the sense electrode. The deformable snap member may include a deflectable metal material. When the metal material flexes from a resting position, a change in capacitance between the drive electrode and the sense electrode may be detectable.

Abstract: An example head-mounted display device includes a light projector, an optical assembly arranged to direct light from a light projector to a user, and an actuator module. The optical assembly includes a variable focus lens assembly including a rigid refractive component, a shaper ring defining an aperture, and a flexible lens membrane between the shaper ring and the rigid refractive component and covering the aperture. The refractive component, the shaper ring, and the lens membrane are arranged along an axis. The refractive component and the lens membrane define a chamber containing a volume of fluid. The actuator module is configured to adjust an optical power of the variable focus lens by moving the shaper ring relative to the refractive component along the axis, such that a curvature of the lens membrane in the aperture is modified.

Abstract: A coordinate input processing apparatus includes a position detection apparatus and a communication circuit. The position detection apparatus includes a sensor which detects a position pointed to by an electronic pen, and circuitry which acquires pen state information regarding a state of the electronic pen held by a person. The communication circuit transmits to an emotion estimation apparatus coordinates corresponding to the position pointed to by the electronic pen and the pen state information in an emotional state estimation request, and receives from the emotion estimation apparatus the coordinates corresponding to the position pointed to by the electronic pen, the pen state information included in the emotional state estimation request, and the information regarding the distracted state of the person holding the electronic pen in an emotional state estimation response having the same format as the emotional state estimation request.

Abstract: A pixel circuit and a driving method thereof, a display panel, and a display device are provided. The pixel circuit includes a light-emitting driving circuit, a storage circuit, and a data writing circuit, a first terminal of the storage circuit is respectively electrically connected to the data writing circuit and the light-emitting driving circuit, a second terminal of the storage circuit is configured to receive a control signal, and the storage circuit is configured to receive and store the first data voltage, to generate a first control voltage, that changes with time, according to the control signal and the first data voltage, and to cause the first control voltage to be applied to the light-emitting driving circuit to control a turn-on time of the light-emitting driving circuit; and the light-emitting driving circuit is configured to drive the light-emitting element to emit light under control of the first control voltage.

Abstract: A light-emitting diode (LED) display driver is operable to drive LEDs of an LED display and has a display interval with sub-periods and a blank time, each sub-period having multiple segments. The LED display driver includes: a data input; LED channel outputs adapted to be coupled to LEDs to drive the LEDs; and blank time distribution circuitry coupled between the data input and the LED channel outputs. The blank time distribution circuitry operable to distribute the blank time as blank time portions added to at least some of the sub-periods. Each blank time portion is smaller than a duration of each sub-period.

Abstract: A display panel and a display device are provided. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data-writing module, a driving module including a driving transistor, and a compensation module. The driving transistor includes a source, a gate, an active layer, a first drain and a second drain, and is divided into first and second driving portions having channel regions with lengths of L1 and L2, respectively. The data-writing module is connected to the source, the compensation module is connected between the gate and the first drain, and L2/L1?Vsd2/(?Vsg+V0)?1, 0V0?Vgd2×½; alternatively, the data-writing module is connected to the first drain, the compensation module is connected between the gate and the second drain, and L1/L2?Vsd2/(?Vgd2+V0)?1, 0V0?Vsg×½.

Abstract: A freeform varifocal optical assembly includes at least three optical modules including a first plurality of optical elements including Pancharatnam-Berry phase (PBP) lenses, polarization sensitive hologram (PSH) lenses, metamaterials, or combinations thereof. The plurality of optical elements of each optical module include a property associated with a Zernike polynomial. Each of the first and the three optical modules are configurable between a plurality of optical powers. The freeform varifocal optical assembly is configurable to output a predetermined wavefront in response to an input wavefront.

Abstract: In the use of a display of a converter, method for operating a converter, and converter, the converter having an address code switch, in particular on its housing, and in an actuation of the address code switch and during a subsequent, predefined period of time, a respective value corresponding to the respective switch position of the address code switch is displayed by the display. Operating information of the converter is displayed in all other cases.

Abstract: The light emitting display panel includes a plurality of pixels, a plurality of gate lines transferring gate signals to the plurality of pixels, a plurality of data lines transferring data voltages to the plurality of pixels, and a sensing line connected to a plurality of light emitting devices respectively included in the plurality of pixels. Each of the plurality of pixels includes a light emitting device, a sensing control transistor including a first terminal connected to a first terminal of the light emitting device and a gate connected to a sensing control line, and a sensing switching transistor including a first terminal connected to a second terminal of the sensing control transistor, a second terminal connected to the sensing line, and a gate connected to a sensing switching line.