A selection transistor and a light-emitting transistor are formed in a pixel. The selection transistor includes a gate electrode connected to a scan line, a first source/drain electrode connected to a signal line, and a second source/drain electrode. The light-emitting transistor includes a gate electrode connected to the second source/drain electrode of the selection transistor, a first electrode connected to a first line, a second electrode connected to a second line, and a channel layer including quantum dots. The light-emitting transistor controls the quantum dots to emit light by a carrier flowing through the channel layer.

A display apparatus includes: a substrate; a pixel electrode above the substrate; a first low reflection layer spaced apart from the pixel electrode at a same layer as the pixel electrode and comprising a lower layer having conductivity and an upper layer above the lower layer; a pixel-defining layer above the first low reflection layer and having an opening exposing at least a part of the pixel electrode; an intermediate layer above the pixel electrode and comprising an organic emission layer; and an opposite electrode above the intermediate layer.

A display apparatus includes: a substrate; a pixel electrode above the substrate; a first low reflection layer spaced apart from the pixel electrode at a same layer as the pixel electrode and comprising a lower layer having conductivity and an upper layer above the lower layer; a pixel-defining layer above the first low reflection layer and having an opening exposing at least a part of the pixel electrode; an intermediate layer above the pixel electrode and comprising an organic emission layer; and an opposite electrode above the intermediate layer.

Organic compounds containing indolocarbazoles as electron donor connected with electron acceptors such aza-triphenylene or dibenzoquinoxaline that can improve the performance of phosphorescent organic light emitting devices are disclosed.

Organic compounds containing indolocarbazoles as electron donor connected with electron acceptors such aza-triphenylene or dibenzoquinoxaline that can improve the performance of phosphorescent organic light emitting devices are disclosed.

The present invention relates to a filter medium (10) for air and/or water cleaning, comprising a semiconductor photocatalytic material (14) and a light energy source (15) for radiating light provided to activate photocatalytic reactions of the semiconductor photocatalytic material (14). The light energy source (15) is configured as a support (16) for the semiconductor photocatalytic material (14). The filter medium (10) can be incorporated into a filter unit (100).

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 display device includes: a first subpixel including a quantum dot light-emitting layer configured to emit light of a first color: a second subpixel including a quantum dot light-emitting layer configured to emit light of a second color different from the light of the first color: a third subpixel including a quantum dot light-emitting layer configured to emit light of a third color different from the light of the first color and the light of the second color: and a data processing circuit configured to receive a first input data corresponding to the first subpixel, a second input data corresponding to the second subpixel, and a third input data corresponding to the third subpixel. The data processing circuit generates first output data corresponding to a first data voltage supplied to the first subpixel by using the first input data, the second input data, and the third input data.

An electroluminescent device including a first electrode, a second electrode, and a light-emitting layer disposed between the first electrode and the second electrode, the light-emitting layer including a plurality of semiconductor nanoparticles, wherein the light-emitting layer is configured to emit green light, wherein the plurality of semiconductor nanoparticles include a first semiconductor nanocrystal including indium, phosphorus, and optionally zinc, and a second semiconductor nanocrystal including a zinc chalcogenide, wherein the zinc chalcogenide includes zinc, selenium, and sulfur, wherein in the plurality of the semiconductor nanoparticles, a mole ratio of zinc to indium is greater than or equal to about 60:1, and wherein the electroluminescent device is configured to exhibit a T90 of greater than or equal to about 120 hours as measured with an initial driving luminance of about 2700 nit.

A method for manufacturing a display device includes: a step of forming a first recess, in a planarization film, overlapping a first lower electrode; a step of forming a first lower functional layer in the first recess to have a thickness lower than a depth of the first recess; a step of disposing a first screen, which has an opening corresponding to the first recess, on the planarization film, and coating the first lower functional layer with a first light-emitting layer; a step of sliding a squeegee in contact with the first screen to squeegee the first light-emitting layer and, after the squeegeeing, removing the first screen; and a step of sliding the squeegee in contact with the planarization film to squeegee the first light-emitting layer again.