A pixel unit, a compensation method of the pixel unit, a display device and a manufacturing method of the display device are disclosed. The pixel unit includes a light-emitting circuit configured to emit light under control of an external control circuit, a photosensitive element configured to sense a light intensity of light emitted by the light-emitting circuit and to output a sensed light intensity signal by a sensing output terminal, and a switch circuit configured to control an ON/OFF state between the sensing output terminal and the external control circuit.

A display device and a method of compensating the same are provided. The display device includes a display panel, an optical sensor, and a control unit. The optical sensor is disposed behind the display panel and configured to provide first optically sensed data and second optically sensed data. The control unit is electrically connected the optical sensor and the display panel and configured to determine service life of the display panel based on the first optically sensed data and the second optically sensed data and provide a compensation to the display panel.

The phase modulation device includes an image data generator, a gradation data generator, an adjustment voltage controller, and a reflective liquid crystal element. The image data generator generates image data corresponding to a distribution of phase change amount or a distribution of phase velocity. The gradation data generator generates gradation data corresponding to each pixel. The reflective liquid crystal element includes a pixel region having a plurality of pixel blocks, and an adjustment electrode. The adjustment voltage controller applies an adjustment voltage having a same voltage value as a driving voltage applied to a pixel electrode of the pixel block adjacent to the adjustment electrode.

A verifiable display is provided that enables the visual content of the display to be detected and confirmed in a variety of ambient lighting conditions, environments, and operational states. In particular, the verifiable display has a display layer that is capable of visually setting an intended message for human or machine reading, with the intendended message being set using pixels. Depending on the operational condition of the display and the ambient light, for example, the message that is actually displayed and perceivable may vary from the intended message. To detect what message is actually displayed, a light detection layer in the verifiable display detects the illumination state of the pixels, and in that way is able to detect what message is actually being presented by the display layer.

A sensor calibration system is provided that includes a sensor apparatus including an event-driven vision sensor including a sensor array configured with sensors that generate event signals upon detection of a change in incident light intensity, and a display apparatus including a display section configured to change luminance of a planar region instantaneously with a predetermined spatial resolution as per a calibration pattern of the sensors.

The present application discloses a display panel comprising a substrate, a transistor layer on the substrate, and a pixel-defining layer on a side of the transistor layer distal to the substrate to divide the display panel into a plurality of subpixel regions. At least one subpixel region includes a display sub-region and a light-sensitive sub-region. The display panel further includes a plurality of organic light-emitting diodes formed on the transistor layer respectively on the plurality of subpixel regions. Additionally, the display panel includes a plurality of pixel circuits formed in the transistor layer respectively on the plurality of subpixel regions. Each pixel circuit includes at least a display-driving sub-circuit coupled to one organic light-emitting diode. At least one pixel circuit in the at least one subpixel region includes a light-sensing sub-circuit formed on the light-sensitive sub-region and coupled to the display-driving sub-circuit formed on the display sub-region.

A display compensation method for a display panel, a display compensation device, a display device and a storage medium. The display compensation method includes: acquiring compensation data of i pixels adjacent to the target pixel of the display panel respectively; deleting deviation data from the compensation data of i pixels; calculating the compensation data of the target pixel according to the remaining compensation data; i is an integer greater than 2.

A pixel circuit includes a driving sub-circuit and a photosensitive detection circuit. The driving sub-circuit is coupled to a self-luminescent device. The driving sub-circuit is configured to drive the self-luminescent device to emit light. The photosensitive detection circuit is configured to detect a luminance of the self-luminescent device, and transmit an electrical signal for characterizing the luminance of the self-luminescent device to a signal readout terminal.

An apparatus includes a display, a memory, a light sensor array and a light source array. The light source array emits light to display an image on the display. A controller is configured to receive a sensor output from each light sensor in the light sensor array. An ambient-light illuminance difference between a first illuminance of a first ambient light externally directed onto a first region of the displayed image of the display and a second illuminance of a second ambient light externally directed respectively onto a second region of the displayed image of the display is computed. Light source controls of light sources of the light source array are varied to change a luminous emittance of the light source array within the at least one second region of the displayed image so as to reduce a luminance difference between the first region and the second region of the displayed image.

Under-display sensor disclosed. The under-display sensor includes a light selection layer, having a first optical path and a second optical path through which a display circularly-polarized light generated by an ambient light and an unpolarized light generated by a pixel pass, and an optical sensor, having a first receiver configured for measuring light that has passed the first optical path and a second receiver configured for measuring light that has passed the second optical path, wherein the first optical path passes all of the display circularly-polarized light and the unpolarized light, wherein the second optical path blocks the display circularly-polarized light and passes the unpolarized light.