Provided is a display apparatus including a modular display panel that includes a plurality of displays disposed in a matrix form and respectively including a display panel including a pixel array in which pixels including a plurality of inorganic light emitting elements are disposed in a plurality of row lines, sub-pixel circuits respectively corresponding to inorganic light emitting elements of the pixel array, a driver configured to drive the sub-pixel circuits, a sensor configured to sense a current flowing in a driving transistor included in the sub-pixel circuits and output sensing data corresponding to the sensed current, and a processor configured to correct the image data voltage applied to the sub-pixel circuits based on the sensing data, and a timing controller configured to provide a first start signal to a driver of a first display and a second start signal to a driver of a second display.

A display apparatus, including a display panel which includes a pixel array including a plurality of pixels arranged in a plurality of row lines, and a plurality of sub-pixel circuits, wherein each pixel of the plurality of pixels includes a plurality of inorganic light emitting elements, and wherein each sub-pixel circuit of the plurality of sub-pixel circuits corresponds to an inorganic light emitting element of the plurality of light emitting elements; and a driver configured to drive the plurality of sub-pixel circuits so that the plurality of inorganic light emitting elements emit light a plurality of times in an order of the plurality of row lines based on an image data voltage corresponding to one image frame, wherein the each sub-pixel circuit includes a discharge transistor configured to remove a potential difference between both ends of a corresponding inorganic light emitting element based on a predetermined cycle

Display panel redundancy schemes and methods of operation are described. In an embodiment, and display panel includes an array of drivers (e.g. microdrivers), each of which including multiple portions to independently receive control and pixel bits. In an embodiment, each driver portion is to control a group of redundant emission elements.

A display device includes a display panel including a pixel array including a plurality of pixels and a plurality of sub-pixel circuits, each pixel of the plurality of pixels including a plurality of inorganic light emitting elements and a sub-pixel circuit of the plurality of sub-pixel circuits being provided for an inorganic light emitting element of the plurality of inorganic light emitting elements, a driver configured to set the image data voltage to sub-pixel circuits included in each of the plurality of row lines in an order of the row lines, a sensing unit configured to sense a current flowing in a driving transistor included in the sub-pixel circuit based on a specific voltage applied to the sub-pixel circuit, and output sensing data corresponding to the sensed current, and a correction unit configured to correct the image data voltage applied to the sub-pixel circuit based on the sensing data.

The present disclosure relates to a technology for performing a hybrid driving in order to increase accuracy of a low current driving when driving a light emitting diode and allows an LED driving circuit to perform a PWM driving when a current is low and to perform a PAM driving when a current is high and this leads to an elaborate adjustment of a grayscale.

A display device includes a display panel and the display panel includes a pixel. The pixel includes a light emitting unit including at least one light emitting element, a driving transistor providing a driving current corresponding to a data signal to the light emitting unit, and a first transistor electrically connected between both ends of the light emitting unit. A driver provides the data signal to the pixel and provides a duty control signal to the first transistor. The driver varies a voltage level of the data signal in a first grayscale section in which a grayscale corresponding to the data signal is greater than or equal to a reference grayscale, and varies a duty ratio of the duty control signal in a second grayscale section in which the grayscale is less than the reference grayscale.

The present disclosure discloses a pixel drive circuit and a display panel. The pixel drive circuit includes a Micro-LED, a cathode of which is grounded; a light-emitting control circuit connected with an anode of the Micro-LED and configured to control an emission time of the Micro-LED; a current control circuit connected with the light-emitting control circuit and configured to output a preset current to the light-emitting control circuit to control the Micro-LED to work under a set current density, and luminance efficiency of the Micro-LED under the set current density is greater than a set threshold value.

Provided are a display panel and a display device. The display panel includes a first light-emitting element, a second light-emitting element, a first driver circuit and a second driver circuit. The first driver circuit is electrically connected to the first light-emitting element and configured to provide a first drive current to the first light-emitting element to control the first light-emitting element to emit light, and the second driver circuit is electrically connected to the second light-emitting element and configured to provide a second drive current to the second light-emitting element to control the second light-emitting element to emit light. At least at a maximum grayscale, an average current value of the first drive current is greater than an average current value of the second drive current.

A display device includes a plurality of pixel circuits each including: a light-emitting element; a pulse width modulation (PWM) controller configured to control whether to supply current to the light-emitting element; and a constant current controller configured to supply the current to the light-emitting element, wherein the constant current controller, the PWM controller, and the light-emitting element are connected in series between a first power line and a second power line to supply the current to the light-emitting element; and a transistor configured to turn off the light-emitting element during a constant current setting period is provided between the first power line and the constant current controller.

A display device includes a plurality of sub-pixels. The sub-pixels include a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first light emitting element and a first control circuit. The first control circuit is configured to provide a first driving current to the first light emitting element. The second sub-pixel includes a second light emitting element and a second control circuit. The second control circuit is configured to provide a second driving current to the second light emitting element. The first control circuit and the second control circuit are configured to differently control pulse amplitude of the first driving current and pulse amplitude of the second driving current, such that both of the first light emitting element and the second light emitting element emit at a target wavelength or a color point range (e.g. +/−1.5˜2 nm).