Abstract: The present disclosure relates to light-emitting diode (LED) displays as well as driving methods and driving apparatuses for the LED displays. An example driving apparatus includes a temperature sensors, a control unit, and a power supply unit. The power supply unit is configured to provide a driving voltage for an LED in each pixel circuit in the LED display. The temperature sensor is configured to collect a first temperature value of the LED display. The control unit is coupled to the power supply unit, and is configured to control, based on the first temperature value, the power supply unit to dynamically adjust the driving voltage applied to the LED in each pixel circuit.

Abstract: This application provides an image display method, where the method is applied to a display device. The display device includes an application processor and a display circuit connected to the application processor, the display circuit includes N display chips, each of the N display chips includes a receive interface and an extraction circuit, the receive interfaces of the N display chips are respectively connected to a transmit interface of the application processor, and N is an integer greater than or equal to 2. The method includes: application processor sends a to-be-displayed image to each of the N display chips, the to-be-displayed image includes data of M color channels, and M is an integer greater than or equal to 2; and each of the N display chips receives the to-be-displayed image, and extracts, via the extraction circuit, data of P target color channels from the to-be-displayed image for display, where 1?P<M.

Abstract: A display apparatus, a picture adjustment method, and a device are disclosed. The display apparatus includes a display panel, a control module, a gamma module, a current source module, and a pulse width modulation (PWM) module. The control module sends a present temperature value, a present current value, and a present brightness value to the gamma module. The gamma module determines a target current value based on the present current value and the present temperature value, and sends the target current value to the current source module. The gamma module determines a present grayscale value based on the present temperature value and the present brightness value. The gamma module determines a target grayscale value based on the present grayscale value and the present temperature value, and sends the target grayscale value to the PWM module.

Abstract: Embodiments of this application provide a display, a manufacturing method thereof, and an electronic device, and relate to the field of display technologies, to improve performance of the display. The display includes a first primary-color light emitting diode, a second primary-color light emitting diode, and a third primary-color light emitting diode that are stacked. The first primary-color light emitting diode includes a first overlapping portion and a first light emission portion. The second primary-color light emitting diode includes a second overlapping portion and a second light emission portion, the second light emission portion covers the first overlapping portion, and the second overlapping portion exposes the first light emission portion. The third primary-color light emitting diode covers the second overlapping portion and exposes the first light emission portion and the second light emission portion.

Abstract: Examples of a projection optical engine, an electronic device, and a projection imaging method are described. One example of a light combination apparatus is configured to combine light emitted by one pixel of a first color and light emitted by one pixel of a second color, and then emit combined light. The light emitted by the light combination apparatus is imaged on an imaging plane after passing through a pixel expansion apparatus and an optical engine lens. The pixel expansion apparatus is configured to enable the light emitted by the light combination apparatus to be imaged at different locations on the imaging plane at different moments.

Abstract: A projection display system and a full-color projection optical engine are disclosed. Pixel dimensions of the blue light-emitting pixel array and pixel dimensions of the green light-emitting pixel array are both smaller than pixel dimensions of the red light-emitting pixel array. At least one group of pixel expansion apparatuses is disposed between the red light-emitting pixel array and the light-combining prism. The at least one group of pixel expansion apparatuses is configured to obtain expanded red light based on the red light, where resolution of an image obtained based on the expanded red light is n times resolution of an image obtained based on the red light, and n>1.

Abstract: A display apparatus includes a display drive chip and a display, and the display drive chip is configured to drive the display. A time sequence gating circuit is added to the display drive chip, and a time sequence switch circuit is added to the display. The time sequence gating circuit can provide a gating signal for the time sequence switch circuit of the display. The time sequence switch circuit may connect or disconnect a time sequence drive circuit to or from a plurality of gate lines of the display based on the gating signal.

Abstract: A processing circuit includes a load unit and a detection circuit, and a proportional relationship exists between a load value of the load unit and a load value of a first pixel line. The load value of the load unit is obtained through the detection circuit, to obtain the load value of the first pixel line. Then, based on the load value of the first pixel line, a drive current circuit is controlled to provide a corresponding drive current to the first pixel line. When the drive current enables a light-emitting diode (LED) on the first pixel line to emit light within drive time, a current value is as small as possible.

Abstract: This application relates to the field of AR technologies, and in particular, to AR glasses and an AR glasses system. The AR glasses further include an optical receiver/transmitter, a light propagation medium, a power supply apparatus, and a photovoltaic apparatus. The optical receiver/transmitter is configured to emit light. The optical receiver/transmitter is disposed on a frame. The light propagation medium is configured to guide propagation of the light emitted by the optical receiver/transmitter, and the light propagation medium is disposed on an eyeglass. The power supply apparatus is configured to provide electric energy for the AR glasses. The photovoltaic apparatus is configured to absorb light that does not enter the light propagation medium, and convert light energy into electric energy. The photovoltaic apparatus is electrically connected to the power supply apparatus, and the electric energy generated by the photovoltaic apparatus is transmitted to the power supply apparatus.

Abstract: A micro-light emitting diode (MicroLED) display screen includes a MicroLED array substrate, where a plurality of pixels are set in the MicroLED array substrate, and the plurality of pixels include at least a first subpixel and a second subpixel; a light scattering structure, prepared above the first subpixel, and configured to scatter first emitting light generated by the first subpixel; a light conversion structure, prepared above the second subpixel, and configured to convert second emitting light generated by the second subpixel; and a metal isolation structure, prepared between the light scattering structure and the light conversion structure, where the light scattering structure, the light conversion structure, and the metal isolation structure are located at a same layer.

Abstract: This application provides a display panel, a preparation method therefor, and a display apparatus. A first display region of the display panel has an OLED pixel, a second display region has a Micro LED pixel, the Micro LED pixel has a light emitting region and a light transmission region, and a camera is disposed below the second display region. After the Micro LED pixel is used in the second display region, display pixels having a same area in the first display region and the second display region can be designed, to implement display effect consistency between the first display region and the second display region. Because a size of the Micro LED pixel for light emitting is small, it can be ensured that the Micro LED pixel has a large light transmission region, so that light transmittance of the second display region can be improved.

Abstract: A driving method and driving apparatus for a light-emitting diode LED display, and an LED display are provided, to decrease power consumption of the LED display. The driving apparatus includes temperature sensors (201, . . . , 20m), a control unit (301), and a power supply unit (401). The power supply unit (401) is configured to provide driving voltages (VDD, VSS) for light-emitting diodes (1011, 1021) in all pixel circuits (101, . . . , 10n) in the LED display. The temperature sensors (201, . . . , 20m) are configured to collect a first temperature value of the LED display. The control unit (301) is coupled to the power supply unit (401), and is configured to control, based on the first temperature value, the power supply unit (401) to dynamically adjust the driving voltages (VDD, VSS) that are applied to the light-emitting diodes (1011, 1021) in all pixel circuits (101, . . . , 10n).

Abstract: The present disclosure relates to displays and imaging methods. One example display includes a self-luminous array, a pixel expansion apparatus, and a lens of an optical engine. The self-luminous array includes a plurality of self-luminous pixels that autonomously emit light. The pixel expansion apparatus includes a driver and a transparent flat plate. A light beam emitted by the self-luminous array is imaged on an imaging plane of the lens of the optical engine through the transparent flat plate. The transparent flat plate is driven by the driver. In some instances, for the display module, in a time dimension, a same unit imaging area can display different colors in a time-division manner, and in a space dimension, a shift of a light beam can be controlled.

Abstract: A projection optical engine, an electronic device, and a projection imaging method are provided, to resolve a limitation of the projection optical engine on miniaturization of the electronic device. The light combination apparatus is configured to combine light emitted by one pixel of the first color and light emitted by one pixel of the second color, and then emit combined light. The light emitted by the light combination apparatus is imaged on an imaging plane after passing through the pixel expansion apparatus and the optical engine lens. The pixel expansion apparatus is configured to enable the light emitted by the light combination apparatus to be imaged at different locations on the imaging plane at different moments.

Abstract: Pixel structures used in self-luminous display panels are provided in this disclosure. In an implementation, a pixel structure comprises: a plurality of subpixels, wherein at least one subpixel in the plurality of subpixels comprises a plurality of sub-subpixels, wherein a partition layer is arranged between two adjacent sub-subpixels in the at least one subpixel, and wherein light emission of the plurality of sub-subpixels is separately and independently controlled.