A mobile computing device includes an emissive display panel configured to emit light from a front surface of the display panel, with the display panel having a plurality of transparent layers and an opaque back cover layer. The mobile computing device also includes a light sensor located behind the opaque back cover layer, and the opaque back cover layer includes an opening through which light from outside the display that is transmitted through the transparent layers of the display can pass to reach the sensor. An air gap separates the light sensor from the transparent layers of the display panel. The plurality of transparent layers includes a reflection attenuating layer on a back side of the display panel configured to attenuate the reflection of light from an interface between a transparent layer of the display panel and the air gap.

A light-emitting device includes an HTL including a metal chalcogenide between an anode and an EML, with an IL including an organic material at least between the HTL and the EML. A distance between the HTL and the EML in a light-emitting element that emits light in a wavelength band having the shortest light emission peak wavelength is greater than a distance between the HTL and the EML in each of the other light-emitting elements.

A fabrication method for stretchable/conformable electronic and optoelectronic circuits and the resulting circuits. The method may utilize a variety of electronic materials including, but not limited to Silicon, GaAs, InSb, Pb Se, CdTe, organic semiconductors, metal oxide semiconductors and related alloys or hybrid combinations of the aforementioned materials. While a wide range of fabricated electronic/optoelectronic devices, circuits, and systems could be manufactured using the embodied technology, a hemispherical image sensor is an exemplary advantageous optoelectronic device that is enabled by this technology. Other applications include but are not limited to wearable electronics, flexible devices for the internet-of-things, and advanced imaging systems.

Provided is a cross-linkable arylamine-based compound represented by Formula 1a or 1b, a polymer obtained therefrom, a light-emitting device including the polymer, and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode; a second electrode facing the first electrode; and an intermediate layer between the first electrode and the second electrode and comprising an emission layer, wherein the intermediate layer includes at least one of the arylamine-based polymer formed by cross-linking a cross-linkable arylamine-based compound represented by Formula 1a or 1b.

A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.

Disclosed are a method of manufacturing a microstructure array that includes preparing a mold having a concave micro pattern array in which a plurality of concave micro patterns are arranged, preparing a perovskite precursor solution including a perovskite precursor and a hydrophilic polymer, coating the perovskite precursor solution on a substrate, disposing the mold on the perovskite precursor solution to confine the perovskite precursor solution in the plurality of concave micro patterns, obtaining a composite of perovskite nanocrystals and the hydrophilic polymer from the perovskite precursor solution in the plurality of concave micro patterns, and, and removing the mold to form a microstructure array in which a plurality of microstructures including a composite of the perovskite nanocrystals and the hydrophilic polymer are arranged, a microstructure array, a micro light emitting diode including the same, and a manufacturing method thereof, and a display device.

In one aspect, the present disclosure provides organic semiconductors (OSNTs) as well as high-performance electrochemical devices based on the present OSNTs for the production of micro and nano-scale actuators. The present OSNTs may be used in several applications, including movable and implantable interface devices, such as flexible neural microelectrodes. Also provided herein are flexible neural microelectrodes based on conjugated polymer actuators

This composition for a hole collecting layer of an organic photoelectric conversion element contains: a charge-transporting substance comprising a polyaniline derivative represented by formula (1); a fluorine-based surfactant; and a solvent. The composition provides a thin film suitable for a hole collecting layer of an organic photoelectric conversion element, and is particularly suited for producing an inverse lamination type organic photoelectric conversion element. ##STR00001##
(In the formula, R.sup.1 to R.sup.6 each independently represent a hydrogen atom, etc., but one of R.sup.1 to R.sup.4 is a sulfonic acid group, one or more of the remaining R.sup.1 to R.sup.4 are a C1-20 alkoxy group, a C1-20 thioalkoxy group, a C1-20 alkyl group, a C2-20 alkenyl group, a C2-20 alkynyl group, a C1-20 haloalkyl group, a C6-20 aryl group, or a C7-20 aralkyl group, and m and n are numbers which satisfy 0≤m≤1, 0≤n≤1 and m+n=1).

The present specification relates to a polymer including a unit represented by Chemical Formula 1, a coating composition including the same, and an organic light emitting device formed using the same: ##STR00001##
wherein all the variables are described herein.

A composition, an interlayer manufactured therefrom, and an apparatus including the interlayer are provided. The composition includes a polymer compound represented by Formula 1, a non-arylamine-based compound represented by Formula 2, and a solvent: ##STR00001##
Z.sub.o.  <Formula 2> The substituents in Formulae 1 and 2 may be understood as described in connection with the detailed description.