An electroluminescent display device includes a display panel including a plurality of pixels connected to a plurality of sensing lines, a plurality of sampling circuits configured to simultaneously sample driving characteristics of the pixels to generate sampling outputs, a plurality of sampling multiplexers configured to divide the sampling outputs into n groups and to alternately select group sampling outputs, a plurality of scalers individually connected to the sampling multiplexers, and a global multiplexer configured to selectively connect outputs of the scalers to an analog-to-digital conversion circuit, wherein the number of scalers is less than the number of sampling circuits.

Provided are a gate driver and a control method thereof. The gate driver receives a power down control signal corresponding to a power down mode, controls an operation of a gate signal processor using the power down control signal which is activated in response to the power down mode, and provides a gate high voltage or gate low voltage for a display panel in response to the power down control signal.

According to an aspect, a display apparatus includes: a plurality of pixels formed on a substrate; a plurality of semiconductor apparatuses, each of which is coupled to a part of the pixels, the part being different for each semiconductor apparatus; and wiring that couples the semiconductor apparatuses to one another. Each semiconductor apparatus includes a drive signal output circuit configured to output a drive signal to the part of the pixels, and an output controller configured to: output and receive, to and from other semiconductor apparatuses, a drive communication signal including a drive start communication signal indicating reception of a drive start signal to start driving the pixels via the wiring; and cause the drive signal output circuit to output the drive signal when determining that all the semiconductor apparatuses have received the drive start signals in accordance with the drive start communication signal.

A method for adjusting a display screen of an electronic device is disclosed. The method includes obtaining a pupil image of a user of the electronic device. An eye condition of the user is determined by analyzing the pupil image. The proportions between a red channel, a green channel, and a blue channel (RGB) of a display screen of the electronic device is adjusted according to the eye condition.

An assembly includes a cabinet having an interior and a door to gain access to the interior. An intelligent electronic device (IED) is within the interior of the cabinet and includes inputs providing electrical connections to the IED, pushbuttons to provide user input to the IED, a display module including a display, a component, and a timer circuit. The timer circuit powers the component OFF or places it in a reduced power state when not in use after a certain amount of time. A switch is associated with the door and is electrically connected to at least one of the inputs so that when the display module is powered OFF or in the reduced power state and when the door is opened, the switch causes a signal to be sent to the timer circuit to cause the timer circuit to power the component fully ON.

According to an aspect, a display apparatus includes: a display device that displays an image; and a drive circuit that drives the display device. The display device includes a regulator that supplies power based on a predetermined set voltage, a plurality of functional blocks that are operated by the supply of the power from the regulator and are related to operation of the display device, a voltage monitoring circuit that determines whether a level of a power supply voltage of at least one of the functional blocks is high or low based on a predetermined threshold voltage, and a voltage controller that increases the set voltage when the voltage monitoring circuit determines that the power supply voltage of the functional block is lower than the threshold voltage.

A display driver integrated circuit (IC) and a display system including the same are provided. The display driver IC includes: a charge pump including a first node and a second node; a flying capacitor connected between the first node and the second node; a voltage regulator; a first switch connected between an output terminal of the voltage regulator and one of the first node and the second node; and a second switch connected between a ground and the other of the first node and the second node.

Exterior facing, multilayer display systems and methods of use are provided herein. An example method includes determining an amount of power for a multilayer display, the multilayer display having a first layer comprising a transparent display unit and a second layer comprising a reflective display unit, the second layer being bonded to the first layer, selecting the transparent display unit when the amount of the power is above a threshold amount, determining that amount of the power is above a threshold amount is below the threshold amount, and selecting the reflective display unit when the power is below the threshold amount.

The present invention provides a gate driver on array (GOA) circuit, a display panel, and a threshold voltage compensating method for a thin film transistor (TFT). The GOA circuit only includes five TFTs and achieves a super narrow bezel of a display panel, and uses a dual-gate electrode structure as the first thin film transistor (T1). Therefore, a threshold voltage (Vth) in the GOA circuit is controlled by a top gate (the top gate connected to a node in the GOA circuit) and a bottom gate (adjustable voltage source (VLS)). Specifically, when the Vth of the TFT negatively shifts overall, the bottom gate voltage can be adjusted negatively. When the Vth of the TFT positively shifts, the bottom gate voltage can be adjusted negatively to stabilize the GOA circuit, increase a lifespan thereof, reduce leakage of a first node (Q) such that the GOA circuit can output ultra-wide pulse signals.

A display device according to the present disclosure is a display device including a plurality of pixels arranged in a matrix, each of the plurality of pixels including: an EL element that emits light according to the amount of current supplied; a driving transistor that controls light emission of the EL element; and switches connected to a gate of the driving transistor. The display device includes an electric charge drawing unit configured to draw electric charges in the gate of the transistor provided in each of the plurality of pixels when power supply to the display device is stopped.