A light extraction apparatus for an organic light-emitting diode (OLED) includes an OLED emitter (100), a plurality of tapered reflectors (210), and a spacer layer (202). Each tapered reflector includes a first surface (212), a second surface (214) opposite to the first surface and comprising a surface area larger than a surface area of the first surface, and at least one side surface (216) extending between the first surface and the second surface. The spacer layer (202) includes a first surface coupled to the OLED emitter and a second surface coupled to the first surface of each of the plurality of tapered reflectors. Light emitted from the OLED passes through the spacer layer and into the plurality of tapered reflectors. The at least one side surface of each of the plurality of tapered reflectors includes a slope to redirect light into an escape cone and out of the second surface of the corresponding tapered reflector.

An organic light emitting diode (OLED) display machine with an illumination function is provided. The OLED display machine includes a display region, at least one illumination region, and a drive circuit. An organic light-emitting display device is arranged in the display region. Each illumination region is located at one side edge adjacent to the display region. An organic light-emitting illumination device is disposed in the illumination region. The organic light-emitting illumination device includes a substrate, an insulating layer, a planarization layer, an anode electrode, a light-emitting material layer, and a cathode electrode. The drive circuit is electrically connected to the anode electrode and the cathode electrode of the organic light-emitting illumination device to control an ON or OFF state of the organic light-emitting illumination device. Accordingly, the present invention provides not only a display function, but also illumination, so facilitate wide application and development of the OLED display machine.

An OLED lighting device comprising: a blue light-emitting unit with a blue-light fluorescent, phosphorescent or TADF emitter; a yellow light-emitting electroluminescent unit comprising a green phosphorescent emitter, a red phosphorescent emitter and at least one non-emitting host; wherein the blue light-emitting unit and the yellow light-emitting unit are separated by a mixed interlayer with two non-emitting charge-carrier materials. Desirably, the yellow-light emitting unit essentially consists of a green phosphorescent emitter, a red phosphorescent emitter and a single non-emitting host. The mixed interlayer desirably has more than 50% of a hole-transporting material and an electron-transporting material. The Triplet Energy of both materials in the mixed interlayer can be higher than the Triplet Energies of the R and G phosphorescent dopants. The HOMOs of both materials in the mixed interlayer are more negative than the HOMO of the host in the yellow unit but less negative than the HOMO of the host in the blue unit. The LUMOs of the materials in the mixed interlayer can be more negative than the LUMO of the host in the yellow unit but less negative than the LUMO of the host in the blue unit. The OLED lighting device is spectrally tunable according to the supplied power.

An OLED lighting device comprising: a blue light-emitting unit with a blue-light fluorescent, phosphorescent or TADF emitter; a yellow light-emitting electroluminescent unit comprising a green phosphorescent emitter, a red phosphorescent emitter and at least one non-emitting host; wherein the blue light-emitting unit and the yellow light-emitting unit are separated by a mixed interlayer with two non-emitting charge-carrier materials. Desirably, the yellow-light emitting unit essentially consists of a green phosphorescent emitter, a red phosphorescent emitter and a single non-emitting host. The mixed interlayer desirably has more than 50% of a hole-transporting material and an electron-transporting material. The Triplet Energy of both materials in the mixed interlayer can be higher than the Triplet Energies of the R and G phosphorescent dopants. The HOMOs of both materials in the mixed interlayer are more negative than the HOMO of the host in the yellow unit but less negative than the HOMO of the host in the blue unit. The LUMOs of the materials in the mixed interlayer can be more negative than the LUMO of the host in the yellow unit but less negative than the LUMO of the host in the blue unit. The OLED lighting device is spectrally tunable according to the supplied power.

Provided is a novel display panel that is highly convenient or reliable or a display panel with a high pixel aperture ratio. The display panel includes the first display element, the first conductive film electrically connected to the first display element, the second conductive film having a region overlapping with the first conductive film, the second insulating film having a region sandwiched between the second conductive film and the first conductive film, a pixel circuit electrically connected to the second conductive film, and the second display element electrically connected to the pixel circuit. The second insulating film includes an opening, and the second conductive film is electrically connected to the first conductive film in the opening.

An opposing substrate as a substrate for an electro-optical device includes a transparent base member and a light shielding portion disposed on a region between pixels on the base member. The light shielding portion includes a first reflective film and a second reflective film that is disposed to overlap the first reflective film and has a reflection rate lower than that of the first reflective film, and a first protective film that covers the first reflective film is provided between the first reflective film and the second reflective film.

The present disclosure discloses an organic light-emitting diode device, a manufacturing method thereof and a display device. The organic light-emitting diode device comprises: a substrate (100); an organic light-emitting diode layer (200) on a side of the substrate (100); and a barrier layer (510) configured to block ultraviolet rays from entering the organic light-emitting diode layer, wherein the barrier layer is on a side of the organic light-emitting diode layer away from the substrate or on a side of the organic light-emitting diode layer close to the substrate. The organic light-emitting diode device can solve the technical problem of short service life due to the influence of ultraviolet rays in the sunlight.

An OLED substrate and a manufacturing method thereof, the OLED substrate includes a substrate, and an OLED device in a sub-pixel region on the substrate. The OLED device includes an organic layer having a non-uniform thickness. The OLED substrate further includes a transmittance adjusting layer in the sub-pixel region. The transmittance of a portion of the transmittance adjusting layer corresponding to a thicker portion of the organic layer is higher than the transmittance of a portion of the transmittance adjusting layer corresponding to a thinner portion of the organic layer. The transmittance adjusting layer is located on a light exit side of the organic layer such that light emitted from the organic layer passes through the transmittance adjusting layer when the OLED substrate is in operation.

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 novel compound is provided. The novel compound is represented by General Formula (G1).

##STR00001##

In General Formula (G1), A represents a substituted or unsubstituted condensed aromatic ring having 10 to 30 carbon atoms or a substituted or unsubstituted condensed heteroaromatic ring having 10 to 30 carbon atoms, and R.sup.1 represents a substituted or unsubstituted aryl group having 6 to 25 carbon atoms. Each of Y.sup.1 and Y.sup.2 independently represents a cycloalkyl group having a bridge structure and having 7 to 10 carbon atoms.