An EL display includes a flexible board including: a plurality of connection terminals arranged at one side for connection with panel lines formed on a panel board; terminal connection lines for connecting points inside the flexible board with the connection terminals; serial connection lines for connecting between two or more of the connection terminals. On the flexible board: driver output terminals of each of gate driver ICs are connected to terminal connection lines; driver input terminals of the gate driver IC are connected to either terminal connection lines or the serial connection lines; and control terminals for performing logic setting of the gate driver IC are each arranged between connection terminals and driver input terminals to which the serial connection lines are connected. As a result, the number of control lines to be formed on the flexible board in serial connection is reduced.

Disclosed is an electroluminescent display device using a variable refresh rate (VRR) mode. The purpose of the present disclosure is to reduce the occurrence of a difference in luminance at a time point of a refresh rate change, thereby preventing viewers from perceiving the variation of the refresh rate.

A light emitting diode display device includes: a pixel circuit; a data line connected to the pixel circuit to transmit a data voltage; an anode on the pixel circuit and the data line; an emission layer on the anode; and a cathode on the emission layer. The anode includes a first anode and a second anode, and the data line extends across the first anode and the second anode.

The present application provides a display panel and a display device. The display panel includes a gate driving circuit and a plurality of rows of pixel circuits. By electrically connecting a gate of a driving transistor in each of the pixel circuits to at least one oxide thin-film transistor, each of the pixel circuits has a low leakage characteristic, thereby realizing a low-frequency driving display of the pixel circuits. On this basis, a display time interval between two adjacent rows of the pixel circuits can be lengthened about half-frame time, thereby realizing an ultra-low-frequency driving display.

A pixel circuit includes: a first transistor including a gate electrode connected to a first node, a source electrode connected to a first power line, and a drain electrode connected to a second power line; a light emitting element connected between the first transistor and the first or second power line; a second transistor connected between a data line and the first node, and including a gate electrode connected to a first scan line; a first capacitor connected between the first node and the source electrode of the first transistor; a third transistor connected between the first node and the first power line, and including a gate electrode connected to a second node; a fourth transistor connected between the second node and the data line, and including a gate electrode connected to a second scan line; and a second capacitor connected between the second node and a first control line.

A display device includes a substrate including a display area in which a display element is arranged and a non-display area having a pad area outside the display area, a first thin-film transistor arranged in the display area of the substrate and including a first semiconductor layer and a first gate electrode insulated from the first semiconductor layer, a first voltage line which extends in a first direction on the first gate electrode, a data line apart from the first voltage line and which extends in the first direction, connection lines which connects the data line to a pad in the pad area in the display area, and a conductive layer arranged in a layer between the first voltage line and the data line.

A display device is provided. The display device includes first, second and third front signal lines disposed on a first portion and electrically connected to light emitting elements, connection lines overlapping a second portion, and first, second and third rear signal lines disposed on a third portion. The first, second and third front signal lines are disposed on different layers. The first front signal line and the first rear signal line are disposed on a same layer. The second front signal line and the second rear signal line are disposed on a same layer. The third front signal line and the third rear signal line are disposed on a same layer. The connection lines electrically and selectively connect the front signal lines and the rear signal lines.

A display device includes a display panel, a display driver integrated circuit and a driving control circuit. The display panel includes a plurality of pixels connected to a plurality of driving lines and a plurality of source lines. The display driver integrated circuit includes a driving control signal generator. The driving control signal generator generates a driving control signal based on display device information and pixel values corresponding to at least a portion of the plurality of rows among a plurality of previous pixel values of a previous frame and a plurality of present pixel values of a present frame. The driving control circuit selectively connects the display driver integrated circuit with each of the plurality of driving lines based on the driving control signal such that first driving signals provided to first driving lines among the plurality of driving lines are blocked.

A display device and method of fabricating the same are provided. The display device includes a substrate and a thin-film transistor formed on the substrate. The thin-film transistor includes a lower gate conductive layer disposed on the substrate, and a lower gate insulating film disposed on the lower gate conductive layer The lower gate insulating film includes an upper surface and sidewalls. The thin-film transistor includes an active layer disposed on the upper surface of the lower gate insulating film, the active layer including sidewalls. At least one of the sidewalls of the lower gate insulating film and at least one of the sidewalls of the active layer are aligned with each other.

Micro light-emitting diode display driver architectures and pixel structures are described. In an example, a driver circuit for a micro light emitting diode device includes a current mirror. A linearized transconductance amplifier is coupled to the current mirror. The linearized transconductance amplifier is to generate a pulse amplitude modulated current that is provided to a set of micro LEDs connected in parallel to provide fault tolerance architecture.