Abstract: A power management circuit can comprise a direct-current-to-direct-current (DC-DC) converter and a guard buffer. The guard buffer can be referenced to a system ground and configured to generate a guard ground. The power management circuit can comprise a supply capacitor coupled to the DC-DC converter that can be referenced to system ground in a first mode and referenced to the guard ground in a second mode. A regulator can be coupled to the DC-DC converter and referred to system ground in the first mode, and decoupled and referred to guard ground in the second mode. The DC-DC converter can generate a first voltage in the first mode and a second voltage in the second mode, the second voltage greater than the first.

Abstract: A display device includes a display panel in which an optical area and a normal area outside the optical area are formed in a display area, wherein the optical area is divided into a transmission area and a light emitting area and wherein the normal area comprises a plurality of light emitting areas; a gate driving circuit configured to supply a gate signal to the display panel; a data driving circuit configured to convert an image data into a data voltage and supply it to the display panel; a display controller configured to control a movement path of the image data so that at least a part of the image data moves over time according to a structure of the optical area when an area where the image data is displayed includes the optical area.

Abstract: A display panel is provided to include a substrate; a photoelectric sensing structure on a side of the substrate; a light emitting structure on a side of the photoelectric sensing structure distal to the substrate, and light emitting elements, each of which includes: a first electrode, a light emitting layer, and a second electrode which are successively in a direction distal to the substrate; and a light path structure between the photoelectric sensing structure and the second electrode, and configured to collimate light on a side of the photoelectric sensing structure distal to the substrate and having a propagation direction towards the photoelectric sensing structure; the photoelectric sensing structure and the light emitting structure do not overlap or partially overlap in a direction perpendicular to the substrate; and the light path structure at least partially overlaps the photoelectric sensing structure in the direction. The embodiment also provides a display device.

Abstract: A system is provided. The system includes a display configured to output a virtual image. The system also includes a lens assembly optically coupled to the display and including a plurality of optical lenses. The system also includes a controller configured to selectively activate one or more of the plurality of optical lenses, determine a lens center shift between a center of the selectively activated one or more of the plurality of optical lenses and a center of the lens assembly, and determine an image shift based on the lens center shift for shifting the virtual image output from the display.

Abstract: A transparent display apparatus is provided, which reduces a visibility difference between a non-display area and a display area, and has excellent encapsulation characteristics. The transparent display apparatus comprises a substrate having a display area and a non-display area adjacent to the display area, a plurality of pixels disposed in the display area, having a first transmissive portion, and a second transmissive portion disposed in the non-display area.

Abstract: A display device includes a display panel, a sensing layer disposed on the display panel and including a fingerprint sensor, an optical layer disposed on the display panel, and a cover layer disposed on the optical layer, wherein the cover layer is a multilayer structure.

Abstract: The organic light-emitting display panel includes: a base substrate having sub-pixel regions and non-sub-pixel regions; fingerprint identification devices in the non-sub-pixel regions; anodes in the sub-pixel regions and on sides, facing away from the base substrate, of the fingerprint identification devices; and a collimation structure in the non-sub-pixel regions.

Abstract: An embodiment method of measuring ambient light comprises generating, by an ambient light sensor associated with a screen which alternates between first phases in which light is emitted and second phases in which no light is emitted by the screen, a first signal representative of an intensity of light received by the ambient light sensor during the first and second phases; comparing the first signal with a threshold intensity value; and controlling a timing of an ambient light measurement by the light sensor based on the comparison.

Abstract: A sensor includes a metal housing and a metal lid. The metal housing houses a circuit board electrically connected to a sensor element and is provided with an opening and an edge part defining the opening. The metal lid is adhered to the edge part to cover the opening. At least one of the edge part and the metal lid is provided with one or more recesses, and the metal lid is adhered to the edge part by a portion of an adhesive agent filled in the recess that is located in a region of an opening end of the recess.

Abstract: A driving controller of a display device, the controller including a segment divider configured to divide the image signal into a plurality of segments and define a predetermined number of adjacent segments among the plurality of segments as a segment block, an image signal adder configured to add up a gray scale value of the image signal of each of the predetermined number of adjacent segments and output the added-up gray scale values, an average gray scale calculator configured to receive the added-up gray scale values and output an average gray scale value, a correction circuit configured to output corrected added-up gray scale values obtained by adding a weight value to each of the added-up gray scale values on the basis of the average gray scale value, and a driving frequency determiner configured to determine the driving frequency of the display device on the basis of the corrected added-up gray scale values.

Abstract: The display panel includes a display area including a pixel area, and a light blocking area which is adjacent to the pixel area, a first light emitting device which is in the pixel area of the display area and emits a light having a first wavelength range, a second light emitting device which is in the light blocking area of the display area and emits a light having a second wavelength range different from the first wavelength range, and a discoloration layer which is on the second light emitting device and is color-changeable by the light having the second wavelength range, the discoloration layer defining a first opening exposing the pixel area to outside the discoloration layer.

Abstract: A display device capable of improving the image quality is provided. The display device includes a pixel in which a first node, a second node, a third node, and a display element are provided, and the same image data is written to the first node and the second node first. Then, at the same time when the image data is read from the second node to the third node, the image data is added to the image data in the first node by capacitive coupling. This operation enables a data potential higher than or equal to the output voltage of a source driver to be supplied to the display element.

Abstract: A liquid crystal display apparatus switches modes from a normal display mode to a stop preparation mode when a main power source voltage drops. In the display mode, a gate drive circuit sequentially applies a first gate-on pulse to gate bus lines so as to select pixel rows sequentially, and applies a second gate-on pulse to buffer capacitor scanning lines, each of which is associated with a pixel row selected by the first gate-on pulse, during a period that does not overlap a period during which the first gate-on pulse is applied, and a source drive circuit applies a display signal voltage to source bus lines.

Abstract: A display device includes a first display panel for displaying a first image, a fingerprint sensor disposed on one surface of the first display panel and detecting light passing through the first display panel, and a first light transmission control unit disposed between the first display panel and the fingerprint sensor for controlling transmission of light.

Abstract: The invention relates to the technical field of head-mounted devices, in particular provides an AI headset computer with a freely adjustable cantilever, comprising a head-mounted device and a computer main body connected to the head-mounted device; the computer main body is connected to the head-mounted device by an extendable arm; the computer main body is communicatively connected to at least one set of camera units and indicator lights; the camera units are embedded on at least two opposite sides of the opaque display modules of the computer main body; the indicator lights are provided for pointing in the same direction of the captured viewpoints of at least one set of camera units; the camera units are provided to transmit the captured viewpoint position data to the computer main body; and the equivalent video generated after processing is projected on the realistic screen of the opaque display module.

Abstract: The present invention provides a smart interactive display device, a smart interactive display system, and an interactive display method thereof. The method comprises steps of: a sensing device sensing a body signal emitted by a human body, outputting a sensing signal correspondingly, and transmitting the sensing signal to a control unit; the control unit driving an image extraction unit to start according to the sensing signal for extracting an image and uploading the image to an artificial intelligence unit; the control unit obtaining a corresponding message corresponding to an analysis result produced by the artificial intelligence unit by analyzing the image; and the control unit outputting an assigned information content assigned by the corresponding message to the display device for playing. By enabling interaction with users, the smart interactive display system can be more friendly to users.

Abstract: Systems, methods, and apparatuses may provide optical lenses comprising liquid crystal metasurfaces. Systems and methods may include a lens system comprising a first optical lens and a liquid crystal metasurface formed on the first optical lens, and a pair of electrodes positioned on opposite sides of the first optical lens. The pair of electrodes may individually tune sections of the liquid crystal metasurface to adjust an optical characteristic of the optical signal. A waveguide may be configured to receive the adjusted optical signal passed through the first optical lens and may provide the optical signal to an image sensor for an image.

Abstract: An optical fingerprint identification system includes a base, a photo sensor, a light emitting layer and a cover. The photo sensor is disposed on the base. The light emitting layer is disposed above the photo sensor, and the light emitting layer includes a light emitting element. The cover is disposed above the light emitting layer. The optical fingerprint identification system further includes a light path adjusting element between the photo sensor and the cover. The light emitting element is disposed away from the light path adjusting element and the photo sensor in a sideway direction that is different from a stack direction of the optical fingerprint identification system.

Abstract: A fingerprint sensing device that includes an analog-front-end (AFE) circuit, an analog-to-digital converter (ADC) and a correction circuit is introduced. The AFE circuit generates an image signal, and the ADC converts the image signal to an output digital code. The correction circuit receives a plurality of first output digital codes that are generated by performing a plurality of first fingerprint sensing operations in a plurality of first exposure time periods. The correction circuit is further configured to calculate a second exposure time period for a second fingerprint sensing operation according to the first output digital codes and the first exposure time periods, wherein the fingerprint sensing device performs the second fingerprint operation in the second exposure time period to generate a second output digital code.

Abstract: The invention relates to an electronic shelf label system that comprises a server for delivering shelf label display information to a number of display devices that are controlled by the server to display said shelf label display information on their screens, wherein said screen is designed to display video content represented by received video data, and said display device is designed to deliver video data to a screen and to receive label positioning data for defining the position of the shelf label display information in the display area of at least one of the screens connected to it, and to embed the shelf label display information in accordance with the received location data in the video content that is delivered to said screen.