A display device is disclosed. The display device includes a substrate provided with a plurality of subpixels including a first light emitting area and a second light emitting area, a first electrode in the first light emitting area of each of the plurality of subpixels on the substrate, a first light emitting layer provided on the first electrode, a second electrode provided on the first light emitting layer, a second light emitting layer provided on the second electrode, a third electrode provided on the second light emitting layer, and a light guide structure provided between the substrate and the first electrode, guiding light emitted from the first light emitting layer to be emitted to the second light emitting area.

A display panel has a nanoscaled moth-eye pattern that is patterned and disposed on at least one layer disposed on a path along which light emitted from light-emitting diodes emerges, such that transmittance of light emerging outward from the display panel can be increased while reducing reflectance of external light. Further, an anti-reflector is disposed on an area other than a light-emitting area, and the moth-eye pattern is disposed on open areas of the anti-reflector. Thereby, it is possible to suppress reflected light and prevent reflection of external light on an area on which the anti-reflector cannot be disposed.

A flexible display panel includes a flexible substrate including a first region including a display region and having a curved display surface, and a plurality of non-display regions that is located outside the display region and including a second region located outside the first region and folded in a direction different from a display direction of the first region, and an encapsulation member for encapsulating the display region along the curved display surface.

A blue fluorescent light-emitting layer is provided in common for first and second subpixels, a green fluorescent light-emitting layer is provided in common for second and third subpixels, and a red light-emitting layer is provided in common for the second and fourth subpixels. In the second subpixel, an opposing surface distance is less than or equal to a Frster radius, and at least of the blue fluorescent light-emitting layer and the green fluorescent light-emitting layer are layered with the red light-emitting layer with a separation layer interposed therebetween.

An organic light-emitting diode display device can include a substrate including first, second and third sub-pixels, each of the first, second and third sub-pixels including an emission area and a non-emission area; a driving thin film transistor in the non-emission area of each of the first, second and third sub-pixels; a light-emitting diode connected to the driving thin film transistor; a polarizer at an outer surface of the substrate, the polarizer including a reflective polarizer; and a light control pattern disposed inside of the substrate and corresponding to the non-emission area, the light control pattern being configured to change a direction of light incident on the light control pattern.

A display device, an electronic device, or a lighting device that is unlikely to be broken is provided. A flexible first substrate and a flexible second substrate overlap with each other with a display element provided therebetween. A flexible third substrate is bonded on the outer surface of the first substrate, and a flexible fourth substrate is bonded on the outer surface of the second substrate. The third substrate is formed using a material softer than the first substrate, and the fourth substrate is formed using a material softer than the second substrate.

The invention discloses an AMOLED doubled-sided display, with the OLED array layer comprising a plurality of top-emitting OLED units and a plurality of bottom-emitting OLED units arranged in an array, wherein the top emitting and bottom-emitting OLED units being arranged alternatingly in at least one of the horizontal direction or vertical direction; the top-emitting and bottom-emitting OLED units having different thickness for respective anodes and cathodes, to realize the top-emitting characteristics of the top-emitting OLED units and the bottom-emitting characteristics of the bottom-emitting OLED units; as such, by designing an algorithm for a single IC to control image displaying, only a display panel and a control IC are sufficient to achieve double-sided displaying, and able to ensure an observer standing in front of the display panel will not see mirrored image or directional distorted image, as well as achieve low-cost and quality display result.

A display substrate includes: a pixel-defining layer located on the display substrate and including a plurality of light-emitting regions; and a plurality of light-emitting devices located in the plurality of light-emitting regions, respectively, wherein each of the plurality of light-emitting devices includes a pixel electrode, a common electrode, and an organic light-emitting portion between the pixel electrode and the common electrode, wherein the pixel-defining layer includes a first inner side surface and a second inner side surface facing each other in each of the plurality of light-emitting regions, and the pixel electrode is on the first inner side surface and the common electrode is on the second inner side surface.

An AMOLED free of TFT in the active area includes a first substrate; an organic light-emitting diode (OLED) device disposed on the first substrate; a plurality of conductive lines disposed on the first substrate; and connected to the OLED device; and a driving device having TFT functions, connected to the OLED device through the conductive lines, configured to drive the OLED device, and disposed outside of the active area.

A field-effect transistor including: a gate electrode, which is configured to apply gate voltage; a source electrode and a drain electrode, which are configured to take electric current out; an active layer, which is disposed to be adjacent to the source electrode and the drain electrode and is formed of an oxide semiconductor; and a gate insulating layer, which is disposed between the gate electrode and the active layer, wherein the gate insulating layer contains a paraelectric amorphous oxide containing a Group A element which is an alkaline earth metal and a Group B element which is at least one selected from the group consisting of Ga, Sc, Y, and lanthanoid, and wherein the active layer has a carrier density of 4.010.sup.17/cm.sup.3 or more.