A light-emitting device (10) is, for example, a segment type display device, a display, or a lighting device, and includes a light-emitting portion (140), a light-transmitting portion (142), and an insulating film (150). The light-emitting portion (140) has a first electrode (110), an organic layer (120), and a second electrode (130). The light-transmitting portion (142) has the first electrode (110), the second electrode (130), and a first layer. The first layer is located between the first electrode (110) and the second electrode (130) . In an example illustrated in the figure, the first layer is at least a part of the organic layer (120). The insulating film (150) defines the light-emitting portion (140) and is located in the light-transmitting portion (142).

A display unit, a display substrate, a driving method of the display substrate and a display device are provided. The display unit includes a first electrode, a second electrode disposed above the first electrode, a functional layer disposed between the first electrode and the second electrode, and the functional layer includes a luminescent material with electrical bistable characteristics. The display unit is provided with the functional layer of the luminescent material with the electrical bistable characteristics, so that the display unit can emit light when being in a high conductivity state and still keep emitting light after being de-energized, and does not emit light when being in a low conductivity state, thereby realizing display and non-display of the display unit.

An image display device includes an image display unit including a display panel, a shelf board, and an illumination unit. The display panel is switchable between an image display mode in which an image is displayed and a transmissive mode in which the display panel is in a transmissive state where objects behind image display unit is visible in a front view of the display panel. The shelf board is disposed projecting rearward from the rear surface of image display unit, and extends in the lateral direction. The illumination unit is disposed above the shelf board and emits light downward.

This disclosure provides a lighting device, which relates to a field of display technologies. The lighting device of the present disclosure includes: a light emitting panel emitting a predetermined color light; and a solar cell panel disposed on a light-emitting side of the light emitting panel and including an active layer. The active layer has no absorption within a wavelength range of the predetermined color light. The lighting device can ensure to be self-powered under normal light emission when the solar cell panel is disposed on the light-emitting side of the light emitting panel.

A display device may include a substrate having a first pixel area, a first electrode on the substrate; a passivation layer between the substrate and the first electrode, a second electrode on the first electrode, and an organic emission layer between the first electrode and the second electrode. The first pixel area may include an emission area and a non-emission area surrounded by the emission area.

In example implementations, a display is provided. The display includes a cover lens, a phosphorescent component, a display module and a processor. The phosphorescent component is located adjacent to the cover lens. The display module is located adjacent to the phosphorescent component opposite the cover lens. The processor is communicatively coupled to the display module to cause the display module to generate a desired image that activates corresponding portions of the phosphorescent component before the display is powered down.

Embodiments of a flexible electroluminescent (EL) device are described. An EL device includes a device stack and a flexible substrate configured to support the device stack. The device stack can include a anode and a cathode, a quantum dot (QD) film positioned between the anode and the cathode and configured to produce light having a first peak wavelength. The device stack further includes a patterned insulating layer disposed on the anode and configured to form electrically active regions in the device stack and to control emission of the light from the EL device through the electrically active regions. The EL device further includes an encapsulation layer disposed on the cathode.

A lighting device includes a substrate including a display area and a non-display area and an organic light emitting layer disposed in the display area. A first electrode is disposed on the organic light emitting layer and a second electrode is disposed below the organic light emitting layer. A phase change material layer is disposed below the second electrode and a plurality of third electrodes is disposed between the substrate and the phase change material layer. Therefore, a pattern having various colors of light and various shapes may be implemented based on a shape of the plurality of third electrodes, a phase change of the phase change material layer, and a color of light emitted from the organic light emitting layer.

A light-emitting component a first layer stack configured to generate light, at least one additional layer stack configured to generate light, where each of the first layer stack and the at least one additional layer stack are separately drivable from one another and where an auxiliary structure is arranged between the first layer stacks and the at least one additional layer stacks.

A method for making an electroluminescent marking on an exterior wall of an aircraft, including a step of superpositioning of layers designed or configured to produce the electroluminescent marking on a first face of a flexible backing distinct from the aircraft to obtain a marking tape and a step of affixing the marking tape to the exterior wall of the aircraft. The disclosure herein also concerns a marking tape for the implementing of the method, a marking device obtained from the method, and an aircraft comprising the marking device.