Boe Technology Group Co., Ltd.

Fudong Chen

Qingyu Huang

Zhiqiang Jiao

Huajie Yan

Wenqi Liu

Liangliang Kang

Guangcai Yuan

Jinxiang Xue

Kang Guo

Xiaohu Li

Jin Zhao

Ning Dang

Mengya Song

Duohui Li

Yanhui Lu

Xueyuan Zhou

An OLED device is provided. The OLED device includes: an anode, a light emitting layer, and a cathode; wherein the anode includes an interstitial compound layer, a metal layer, and a graphene layer stacked sequentially in a direction approaching the light emitting layer.

OLED device and manufacturing method therefor, and display panel

Provided is an encapsulation structure which is applicable for encapsulating an electroluminescent device, and includes: a first inorganic dielectric layer provided with a surface for being attached to a surface of a cathode layer of the electroluminescent device; wherein a dispersion relation among the first inorganic dielectric layer, the cathode layer and an electron injection layer of the electroluminescent device satisfies a preset condition, wherein the preset condition is configured to define an optical parameter of a first interface, the optical parameter is related to dispersion and is configured to couple surface plasmon polaritons (SPPs) on interfaces of two sides of the cathode layer, and the first interface is an interface between the first inorganic dielectric layer and the cathode layer.

Encapsulation structure, encapsulation method, electroluminescent device, and display device

Provided is a display panel including a plurality of sub-pixels and includes a substrate and a pixel defining layer, a light emitting device and a color film layer disposed on the substrate. The pixel defining includes M layers and M being a positive integer equal to or greater than 2, an m-th layer of pixel defining layer is covered on a surface of an (m−1)-th layer of pixel defining layer, and a refractive index nof the (m−1)-th layer of pixel defining layer is greater than a refractive index nof the m-th layer of pixel defining layer, and wherein 2≤m≤M.

Display panel and manufacturing method therefor, and display apparatus

The present disclosure provides a display panel and a display device. The display panel includes a substrate, a plurality of pixel units is arranged at a side of the substrate, each pixel unit includes a first electrode layer, a first light-emitting layer, a second electrode layer, a second light-emitting layer, a third electrode layer, a third light-emitting layer and a fourth electrode layer laminated one on another, the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer emit light in different colors, and two vertically adjacent light-emitting layers share one electrode layer.

Display panel and display device

An organic electroluminescent device comprises an anode, a first organic light emitting layer, an exciton control layer, a second organic light emitting layer, and a cathode that are successively stacked, wherein the first organic light emitting layer comprises a hole transport type host material and a first doped material; the exciton control layer is provided on the surface of the first organic light emitting layer away from the anode; the exciton control layer comprises a first hole transport material and a first electron transport material; the second organic light emitting layer comprises an electron transport type host material and a second doped material; the cathode is provided on the side of the second organic light emitting layer away from the anode; and one of the first doped material and the second doped material is a fluorescence-doped material, and the other is a phosphorescence-doped material.

Organic electroluminescent device and array substrate

A display panel includes a substrate and a grating disposed on a light-emitting side of the display panel. The grating includes a plurality of protruding portions and a plurality of interval portions, each interval portion is located between two adjacent protruding portions. The plurality of protruding portions are arranged on the substrate along a first direction, and each protruding portion extends along a second direction perpendicular to the first direction. Each protruding portion includes an outer surface and a bottom surface; the outer surface is a smooth curved surface, and the bottom surface is a flat surface. A cross-sectional figure of each protruding portion along a thickness direction of the display panel is a first figure; the first figure includes a curve and a bottom edge, and the first figure is a closed figure formed by the curve and the bottom edge. The curve is a cross-sectional figure of the outer surface along the thickness direction of the display panel, and the bottom edge is a cross-sectional figure of the bottom surface along the thickness direction of the display panel.

Display panel, method for manufacturing the same and display device

The present application provides a WOLED device and a preparation method thereof, a WOLED display panel. The WOLED device includes: an anode; a cathode, disposed opposite to the anode; a red-fluorescence emitting layer, disposed on a side of the anode close to the cathode; a green-fluorescence emitting layer, disposed on a side of the red-fluorescence emitting layer close to the cathode; an interlayer, disposed on a side of the green-fluorescence emitting layer; and a blue-fluorescence emitting layer, disposed on a side of the interlayer close to the cathode.

White light organic light-emitting diode (WOLED) devices and preparation methods thereof, WOLED display apparatuses

A light emitting element, includes a first light emitting layer and a second light emitting layer sequentially stacked; and an intermediate layer between the first light emitting layer and the second light emitting layer, and being in direct contact with the first light emitting layer on one side and in direct contact with the second light emitting layer on another side. Each of the intermediate layer, the first light emitting layer, and the second light emitting layer includes a same host material. The intermediate layer is a non-light emitting layer, and is an undoped layer absent of a dopant for emitting light. The light emitting element is configured to emit a composite light including the first light of the first wavelength range and the second light of the second wavelength range. The first wavelength range includes wavelength longer than the second wavelength range.

Display panel, display apparatus, light emitting element, and method of fabricating display panel

A display panel having a plurality of subpixels is provided. The display panel includes a base substrate; a plurality of light emitting elements on the base substrate; and a quantum dot layer on a side of the plurality of light emitting elements away from the base substrate. A respective one of the plurality of light emitting elements includes a first light emitting layer and a second light emitting layer sequentially stacked. The first light emitting layer is configured to emit a first light of a first wavelength range. The second light emitting layer is configured to emit a second light of a second wavelength range. The plurality of light emitting elements are configured to respectively emit a composite light. The quantum dot blocks of different colors are configured to respectively convert the composite light into light of different colors respectively in different subpixels.

Growing community of inventors

Beijing, China

Fudong Chen