Discussed is an organic light emitting display device. The organic light emitting display device according to an embodiment includes a first emission part between a first electrode and a second electrode and a second emission part on the first emission part. The first emission part includes a first hole transport layer, a first emission layer, and a first electron transport layer, and the second emission part includes a second hole transport layer, a second emission layer, and a second electron transport layer. The second emission layer includes at least two zones including a hole-type host and an electron-type host, and a zone among the at least two zones closer to the first electrode than the second electrode, a ratio of the mixed host to the electron-type host is higher than a ratio of the mixed host to the hole-type host in the zone.

A light-emitting element which uses a plurality of kinds of light-emitting dopants emitting light in a balanced manner and has high emission efficiency is provided. Further, a light-emitting device, a display device, an electronic device, and a lighting device each having reduced power consumption by using the above light-emitting element are provided. A light-emitting element which includes a plurality of light-emitting layers including different phosphorescent materials is provided. In the light-emitting element, the light-emitting layer which includes a light-emitting material emitting light with a long wavelength includes two kinds of carrier-transport compounds having properties of transporting carriers with different polarities. Further, in the light-emitting element, the triplet excitation energy of a host material included in the light-emitting layer emitting light with a short wavelength is higher than the triplet excitation energy of at least one of the carrier-transport compounds.

[Object] To provide a display device that displays a display image with high resolution and higher uniformity, and an electronic apparatus including the display device.

[Solution] A display device including: a driving transistor including a first-conductivity-type activation region provided in a semiconductor substrate, an opening provided to cross the activation region, a gate insulating film provided on the activation region including an inside of the opening, a gate electrode filling the opening, and second-conductivity-type diffusion regions provided on both sides of the activation region across the opening; and an organic electroluminescent element configured to be driven by the driving transistor.

A display panel and a display device are provided. The display panel is a flexible bendable or foldable display panel. In order to improve the anti-bending performance of a bending region, a flexible thin-film encapsulation unit in the bending region is divided into a plurality of first thin-film encapsulation units and a plurality of second thin-film encapsulation units extending in a direction of the bending axis, thereby solving the problems of a large stress caused by the integrated encapsulation units in the original bending region, and a poor anti-bending performance caused thereby.

An organic light-emitting display (OLED) apparatus includes an organic light-emitting device including an anode, an organic light-emitting layer, and a cathode. The OLED apparatus also includes an encapsulation element covering the organic light-emitting device, and a particular layer disposed between the organic light-emitting device and the encapsulation element. The particular layer is doped with a light absorption material that absorbs light having a wavelength shorter than a wavelength of light emitted from the organic light-emitting device so that variation in characteristics of the organic light-emitting device by external light is reduced. Accordingly, the lifespan of the OLED apparatus can be improved.

A light-emitting device includes a first reflective surface, a second reflective surface, a light-emitting layer, and a third reflective surface. The second reflective surface faces the first reflective surface. The light-emitting layer is provided between the first reflective surface and the second reflective surface, and outputs light of a wavelength ?. The third reflective surface faces the second reflective surface, and is located at a distance within ?/4 from the second reflective surface.

According to one embodiment, a display device includes a first substrate, a second substrate opposing the first substrate, a wiring substrate connected to the first substrate, a cover member located on an opposite side to the first substrate so as to interpose the second substrate therebetween and a conductive layer maintained at a predetermined potential, and the first substrate includes an extension portion extending further from the second substrate, the wiring substrate is connected to the extension portion, the cover member includes a first surface opposing the extension portion, and the conductive layer overlaps the extension portion in plan view.

A display device of the present disclosure includes: a circuit unit including a semiconductor substrate and a capacitative element, in which the capacitative element includes, a dielectric layer which is formed in the semiconductor substrate, and extends in a substrate depth direction, a first electrode formed on one surface side of the dielectric layer to face the dielectric layer, and a second electrode formed on the other surface side of the dielectric layer to face the dielectric layer. An electronic device of the present disclosure includes the display device having the configuration described above.

The present invention provided a flexible OLED display panel including a flexible substrate, a plurality of OLED devices disposed on the flexible substrate, and a thin-film encapsulating layer disposed on a surface of the OLED devices. The thin-film encapsulating layer includes at least two separate thin-film encapsulating units, the at least two thin-film encapsulating units cover the surface of the OLED devices opposite to the flexible substrate in a form of an one-dimensional array or a two-dimensional array, a gap is formed between edges of two of the thin-film encapsulating units adjacent to each other, and an extension direction of the gap is perpendicular to a bending direction of the flexible OLED display panel.

This application provides a display device and an OLED display panel. The display device comprises a storage capacitor. A part of a source and drain metal layer is a first electrode of a storage capacitor. A cathode layer is a second electrode of the storage capacitor. An electron transmitting functional layer, a passivation layer, and an inorganic pixel defining layer arranged between the first electrode and the second electrode are the dielectric materials of the storage capacitor.