Provided are a luminous member, a method of driving the luminous member, a non-volatile memory device, a sensor, a method of driving the sensor, and a display apparatus. The luminous member includes a first electrode; a second electrode facing the first electrode; an emission layer, which is disposed on a main surface of the first electrode and emits light by power applied between the first electrode and the second electrode; and a ferrodielectric layer disposed between the emission layer and the second electrode, wherein AC power applied to the luminous member is controlled based on polarity or magnitude of a residual polarization generated in the ferrodielectric layer, thereby adjusting emission characteristics of the emission layer.

The present invention provides a method for repairing an organic EL element and a method for manufacturing an organic EL panel that can reduce a production cycle time. A method for repairing an organic EL element includes an application step of repeatedly applying a pulse voltage having ON-period and OFF-period to an organic EL element. In the application step, the pulse voltage is a forward voltage or a reverse voltage, and the ON-period is equal to or longer than a time constant that is the product of an element capacity of the organic EL element and a wiring resistance including the element.

Provided is a device for emitting electromagnetic radiation. The device includes a first electrode, a second electrode, and an exciton recombination layer extending from the first electrode to the second electrode. The device is configured to relocate a recombination zone in the exciton recombination layer by changing an electric field between the first electrode and the second electrode, or to emit electromagnetic radiation through a transparent substrate.

An organic electroluminescence device, which includes a transparent conductive layer, a light emitting unit layer, transparent insulator dielectric layer and an electrode layer which are stacked up layer by layer sequentially. The light emitting unit layer includes a first light emitting unit and a second light emitting unit which are arranged in juxtaposition and with an interval; through arranging the first light emitting unit and the second light emitting unit in juxtaposition and with an interval, making the organic electroluminescence device can be directly connected to external alternating current, not only can dispense from the energy dissipation causing by converting alternating current to direct current, but also can improve the luminous efficacy of the device; and makes the whole organic electroluminescence device be thin and light.

An organic electroluminescence device, which includes a transparent conductive layer, a light emitting unit layer, transparent insulator dielectric layer and an electrode layer which are stacked up layer by layer sequentially. The light emitting unit layer includes a first light emitting unit and a second light emitting unit which are arranged in juxtaposition and with an interval; through arranging the first light emitting unit and the second light emitting unit in juxtaposition and with an interval, making the organic electroluminescence device can be directly connected to external alternating current, not only can dispense from the energy dissipation causing by converting alternating current to direct current, but also can improve the luminous efficacy of the device; and makes the whole organic electroluminescence device be thin and light.

A display panel, a light-emitting device, and a driving method thereof are provided. The light-emitting device includes a substrate, and a first electrode, a first light-emitting unit, a connecting layer, a second light-emitting unit, and a second electrode stacked up sequentially on the substrate. Polarities of the first electrode and the second electrode are opposite and reverse periodically in order that the first light-emitting unit and the second light-emitting unit illuminate alternately.

A display panel and a display device. The display panel includes: an array substrate; a first signal line group and a second signal line group arranged on the array substrate, the first signal line group including at least an alternating-current signal line, and the second signal line group including a plurality of signal lines which are direct-current signal lines; and a cover plate, arranged on the array substrate and covering at least the first signal line group. On a plane parallel to the cover plate, a projection of the second signal line group does not overlap with a projection of the cover plate. The display panel and the display device can ensure the reliability of the display panel while also realizing a narrow frame design of the display panel.

Provided is a method of driving a light emitting a display in which variations in image quality and brightness are suppressed despite long-term use, without adding a complicated circuit configuration. The driving a light emitting method includes a step (A) of applying a voltage based on image data to be displayed to a gate electrode of a vertical organic light emitting transistor and a step (B) of, after the step (A), applying a voltage, having a polarity opposite to that of the voltage applied to the gate electrode of the vertical organic light emitting transistor in the step (A), to the gate electrode of the vertical organic light emitting transistor based on a value of a voltage being applied to a source electrode of the vertical organic light emitting transistor.

A display panel, a light-emitting device, and a driving method thereof are provided. The light-emitting device includes a substrate, and a first electrode, a first light-emitting unit, a connecting layer, a second light-emitting unit, and a second electrode stacked up sequentially on the substrate. Polarities of the first electrode and the second electrode are opposite and reverse periodically in order that the first light-emitting unit and the second light-emitting unit illuminate alternately.

Provided is an optoelectronic device comprising an optoelectronic element and circuitry connected to the optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching the optoelectronic element between a configuration in which the circuitry provides an effective forward bias voltage that causes the optoelectronic element to emit light and a configuration in which the circuitry provides an effective reverse bias voltage that causes the optoelectronic element to be capable of generating a photocurrent when light to which the optoelectronic element is sensitive strikes the optoelectronic element.