Abstract: A contrast enhancement device included in a display device includes an analysis circuit which receives input image data as input data in a normal mode, receives input test data as the input data in a diagnosis mode, and determines a contrast enhancement coefficient by analyzing the input data, a process circuit which generates output data by performing a contrast enhancement process on the input data based on the contrast enhancement coefficient, where the output data in the normal mode is output image data corresponding to the input image data, and the output data in the diagnosis mode is output test data corresponding to the input test data, and a diagnosis circuit which outputs the output image data in the normal mode, and generates diagnosis result data for the contrast enhancement device by comparing the output test data with reference test data in the diagnosis mode.

Abstract: Augmented reality presentations are provided at respective electronic devices. A first electronic device receives information relating to modification made to an augmented reality presentation at a second electronic device, and the first electronic device modifies the first augmented reality presentation in response to the information.

Abstract: A pixel driving circuit includes: an energy storage sub-circuit, a reset sub-circuit, a compensation sub-circuit, a driving sub-circuit, and a current leakage suppression sub-circuit. The energy storage sub-circuit is coupled to a first node and a second node. The reset sub-circuit is coupled to the second node, a first scan timing signal terminal, and an initialization signal terminal. The compensation sub-circuit is coupled to the second node, a third node, and a second scan timing signal terminal. The driving sub-circuit is coupled to the second node, the third node, and a first voltage signal terminal. The current leakage suppression sub-circuit is coupled to the energy storage sub-circuit, the reset sub-circuit, and the compensation sub-circuit. The current leakage suppression sub-circuit is configured to suppress current leakage of the energy storage sub-circuit in a process of generating and transmitting the driving signal by the driving sub-circuit.

Abstract: Disclosed are a pixel circuit and a drive method for the same, and a display panel and a drive method for the same. The pixel circuit is configured to drive a light-emitting element to emit light, including: a current control sub-circuit and a time-length control sub-circuit. The current control sub-circuit is electrically connected to a current data terminal, a scanning signal terminal, a reset signal terminal, an initial signal terminal, a light-emitting signal terminal, a first power terminal, a first node, and a second node, respectively. The time-length control sub-circuit is electrically connected to a first control terminal, a second control terminal, a time-length data terminal, a ground terminal, a light-emitting signal terminal, a high-frequency input terminal, and the first node, respectively.

Abstract: When cheering of a distributor avatar by virtual avatars has been detected and the distributor avatar reacts to the cheering, a reaction motion is performed for the virtual avatars that cheered, and a normal motion that is not a reaction motion is performed for the viewer avatars that did not cheer. The motion performed for the virtual avatars that cheered differs from the motion performed for the viewer avatars that did not cheer based on timing indicated by the distributor. Either the motion performed for the virtual avatars that cheered or the motion performed for the viewer avatars that did not cheer is a predetermined motion.

Abstract: A pixel circuit includes sub-pixel circuits each including a reset sub-circuit, a driving sub-circuit, and a light-emitting device. The reset sub-circuit is configured to input a voltage provided by an initial voltage terminal to the driving sub-circuit under control of a signal from a first reset control terminal. The driving sub-circuit is configured to control a driving current flowing through the light-emitting device according to a data signal output by a data terminal. The sub-pixel circuits include first and second sub-pixel circuits that are located in two adjacent columns, and connected to a same data terminal. A first reset control terminal and a writing control terminal of the first sub-pixel circuit are connected to first and second scanning signal terminals. A first reset control terminal and a writing control terminal of the second sub-pixel circuit are connected to second and third scanning signal terminals.

Abstract: A display device includes a display panel including a pixel circuit, a display panel driving circuit that drives the display panel, a voltage generating circuit that receives an input power supply voltage when the display device is powered on and generates display panel voltages and driving circuit voltages based on the input power supply voltage, and an over-current protecting circuit that monitors an over-current generated inside the display device and generates a shut-down request signal when the over-current is detected. The voltage generating circuit outputs an initialization voltage at a first time point corresponding to a time point at which the input power supply voltage is received. The display panel driving circuit outputs a scan clock signal at a second time point. The over-current protecting circuit performs a first over-current protecting operation in a power-on monitoring period set between the first time point and the second time point.

Abstract: To minimize the width of a non-light-emitting border region around an opening in the active area, data lines may be stacked in the border region. Data line portions may be formed using three metal layers in three different planes within the border region. A metal layer that forms a positive power signal distribution path in the active area may serve as a data line portion in the border region. A metal layer may be added in the border region to serve as a data line portion in the border region. Data line signals may also be provided to pixels on both sides of an opening in the active area using supplemental data line paths. A supplemental data line path may be routed through the active area of the display to electrically connect data line segments on opposing sides of an opening within the display.

Abstract: A head-mounted computing device having a convertible waveguide optical engine assembly is disclosed. The waveguide in accordance with aspects herein can be utilized in its transparent configuration, or may be provided with means for blocking light from passing through it either by using mechanical means, or by using different types of treatments that can switch the waveguide between opaque an transparent states based on an external stimulus, such as, for example, electricity, temperature, light, and the like. Further, the waveguide optical engine assembly comprises a compact footprint, which is advantageous for head-mounted computing devices. In addition to the compact footprint of the waveguide optical assembly, the configuration of the waveguide optical assembly, as disclosed, allows for maximization of advantages provided by the waveguide as related to eye box and eye relief.

Abstract: A pixel circuit, a driving method of pixel circuit, and a display device are provided. The pixel circuit includes: a light emitting device, a driving sub-circuit, an energy storage sub-circuit, a data writing sub-circuit and a pull-down sub-circuit; the data writing sub-circuit is configured to control a voltage signal on a data line to be written into a control end of the driving sub-circuit in response to a data writing control signal; a first end of the driving sub-circuit is electrically connected to a target node, a second end of the driving sub-circuit is electrically connected to a power supply voltage, and the driving sub-circuit is configured to control a conduction of the driving sub-circuit under a control of a voltage on a control end of the driving sub-circuit.

Abstract: The present disclosure provides a pixel circuit including: a driving transistor and a voltage control circuit; wherein in the voltage control circuit, at least one transistor directly coupled to a gate of the driving transistor is an oxide thin film transistor. The disclosure also provides a display substrate and a display apparatus.

Abstract: Various examples are provided related to compensating brightness of a display using a vertical organic light emitting transistor that suppresses variations in brightness over a long period of time and a display. In one example, a method includes applying a voltage for brightness inspection to a gate electrode of the vertical organic light emitting transistor to be corrected, measuring a current flowing through a current supply line through which the current is supplied to a source electrode of the vertical organic light emitting transistor by the application of the voltage for brightness inspection to the gate electrode of the vertical organic light emitting transistor to be corrected, and determining a corrected value of the voltage to be applied to the gate electrode of the vertical organic light emitting transistor based on a value of the current and characteristic information of the vertical organic light emitting transistor stored in the memory.

Abstract: Methods and systems for chromatic ambient-light support are provided. Given an input surround correlated color temperature (CCT), its normalized value is mapped to a preferred gray CCT value using a sigmoid-like function model generated based on viewer experimental data. The preferred gray CCT value is then mapped to an adjusted CCT value so that viewing conditions on a display with the input surround CCT value match a D65 surround CCT value.

Abstract: There is provided a display control device including a display controller configured to place a virtual object within an augmented reality space corresponding to a real space in accordance with a recognition result of a real object shown in an image captured by an imaging part, and an operation acquisition part configured to acquire a user operation. When the user operation is a first operation, the display controller causes the virtual object to move within the augmented reality space.

Abstract: A pixel driving circuit includes a driving transistor, a voltage stabilizing transistor, and a storage capacitance. A gate metal layer of a gate electrode of the voltage stabilizing transistor that serves as the control terminal of the voltage stabilizing transistor, and an active layer are constituted as a channel on-state capacitance, a ratio of an area of the channel on-state capacitance to a capacitance value of the storage capacitance is less than a preset value the area of the channel on-state capacitance is a directly opposite overlapping area between the gate metal layer and the active layer. This preset value is determined based on a ratio of a voltage fluctuation at a control terminal of the driving transistor to a potential voltage. A correlation between the channel on-state capacitance and the storage capacitance of the voltage stabilizing transistor is determined, so that a new capacitance configuration method is provided.

Abstract: An electronic device may have a display and a camera. Control circuitry in the device can gather information on a user's point of gaze using a gaze tracking system and other sensors, can gather information on the real-world image such as information on content, motion, and other image attributes by analyzing the real-world image, can gather user vision information such as user acuity, contrast sensitivity, field of view, and geometrical distortions, can gather user input such as user preferences and user mode selection commands, and can gather other input. Based on the point-of-gaze information and/or other gathered information, the control circuitry can display the real-world image and supplemental information on the display. The supplemental information can include augmentations such as icons, text labels, and other computer-generated text and graphics overlaid on the real world image and can include enhanced image content such as magnified portions of the real-world image.

Abstract: Eyewear providing an interactive augmented reality experience between two users of eyewear devices to perform a shared group task. During a shared group task session, each eyewear displays the same image. An eye tracker in each eyewear detects a portion of the image the respective user is gazing at. Each eyewear generates an indication of the portion of the respective image each eyewear user is gazing at. The indication is shared with the other eyewear, and the eyewear display indicates the portion of the image the other eyewear user is gazing at. This allows each eyewear user to see what the other user is gazing at when collaborating and visually observing the same image.

Abstract: An organic light emitting diode display device and a brightness driving method thereof are disclosed. The display device includes a display brightness value adjustment unit configured to adjust a display brightness value within a predetermined display brightness value interval and a data driving unit configured to receive a display brightness value and output different data voltages according to whether the display brightness value is equal to a display brightness value configured to correspond to a voltage switch point of a predetermined cathode voltage interval such that a brightness difference between any adjacent two of display brightness value is within a predetermined range.

Abstract: A pixel circuit, display panel, and a display apparatus are provided in the disclosure. The pixel circuit includes a light-emitting unit and a drive transistor. The light-emitting unit is electrically coupled with a second power supply voltage terminal. The drive transistor is configured to drive the light-emitting unit to emit light. The light-emitting control sub-circuit is configured to control the light-emitting unit to emit light in response to a light-emitting control signal. The first reset sub-circuit is configured to write a reference voltage written at the reference voltage terminal into the gate of the drive transistor and a first terminal of the energy storage element in respond to a first reset signal. The switch sub-circuit is configured to change a gate voltage of the drive transistor. The second reset sub-circuit is configured to respond to the first reset signal.

Abstract: A pixel circuit provided corresponding to a scanning line and a data line includes a transistor and an OLED that is an example of a light emitting element. In a compensation period, a gate node and a drain node of the transistor are electrically coupled, and the gate node of the transistor has a voltage corresponding to a threshold voltage. In a writing period, the gate node of the transistor is changed from the voltage corresponding to the threshold voltage by a voltage corresponding to luminance of the light emitting element, and in a discharge period, a reset voltage is applied to a drain node of the transistor via a data line.