Boe Technology Group Co., Ltd.

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Hefei Boe Joint Technology Co., Ltd.

Chinlung Liao

Yue Hu

Guang Yan

Dongfang Yang

Wenjun Hou

Chang Yen Wu

Lifang Song

Shinsuke Iguchi

Wei Quan

Xue Feng Gao

Ze Liu

Zhiqiang Jiao

Wenbin Jia

Meili Wang

Xinxin Wang

Juanjuan You

Changyen Wu

Huifeng Wang

Minghung Hsu

Zhijie Ye

Xiang Wan

Huaiting Shih

Feifei Zhu

Lungpao Hsin

Zhaokang Fan

Chienyu Chen

Chiahao Chang

A display substrate includes: a base substrate; a plurality of light-emitting structures provided on the base substrate; and a pixel definition layer provided on the base substrate and having a plurality of pixel openings, the pixel definition layer including a first definition layer and a second definition layer on the first definition layer, and the second definition layer being made of a conductive material, where each of the plurality of light-emitting structures includes a first electrode, a light-emitting material, and a second electrode, the first electrode is provided on the base substrate and located in a respective pixel opening, the light-emitting material is provided on the first electrode, and second electrodes of the plurality of light-emitting structures are provided on the light-emitting material, are structurally integrated, cover the pixel definition layer and are electrically connected with the second definition layer. A display panel, a display apparatus, and a method of manufacturing a display substrate are also disclosed.

Display substrates and methods of manufacturing the same, display panels, and display apparatuses

A pixel definition layer for defining a light emitting device, an array substrate and a display panel are provided. The pixel definition layer includes a plurality of recessed parts, each of the plurality of recessed parts includes a bottom and an entire sidewall extending upwards from the bottom; and at least one of the plurality of recessed parts has the entire sidewall provided with a position-limiting structure.

Pixel definition layer, array substrate and display panel

The present disclosure relates to a method for manufacturing an OLED light emitting device, an OLED light emitting device, and an OLED display device. The method for manufacturing an OLED light emitting device according to an embodiment of the present disclosure includes forming a pixel defining layer on a substrate, wherein the pixel defining layer comprises a lyophilic material or a lyophobic material and the pixel defining layer comprises a plurality of openings which are spaced apart from each other; forming an anode layer on the substrate and in each opening; adding a preset solvent having a property opposite to that of the lyophilic material or the lyophobic material of the pixel defining layer in an OLED film layer ink; and ink-jet printing the OLED film layer ink on the anode layer and in each opening to form an OLED film layer.

Method for manufacturing OLED light emitting device, OLED light emitting device and OLED display device

A method for manufacturing an array substrate includes: forming a pixel defining layer having a plurality of accommodating wells over a substrate, and forming a hydrophobic material layer over the pixel defining layer. A side wall of each accommodating well comprises a hydrophilic side surface. The hydrophilic side surface is partially covered by the hydrophobic material layer to thereby form an overlapped region having a hydrophobic outer surface and an exposed region having a hydrophilic outer surface. The overlapped region is on a side of the exposed region distal to the substrate. The array substrate manufactured thereby allows an organic functional layer to be evenly fabricated in each accommodating well of the pixel defining layer via inkjet printing.

Array substrate, manufacturing method thereof, and display apparatus

Embodiments of the present disclosure provide a method of manufacturing a display substrate. The method includes: forming a first electrode layer on a substrate, the first electrode layer including a plurality of first electrodes arranged in an array; performing a surface treatment on the plurality of first electrodes, such that an affinity of a surface of each of the plurality of first electrodes gradually increases from a central portion of the surface to a peripheral portion of the surface around the central portion, or the affinity of the central portion of the surface is less than the affinity of the peripheral portion of the surface; and forming a light emitting functional layer on the surfaces of the plurality of first electrodes subjected to the surface treatment. Embodiments of the present disclosure further provide a display substrate, a display panel, and a mask.

Display substrate, method of manufacturing display substrate, display panel, and mask

The embodiments of the present disclosure disclose an electroluminescent device, a display device and a manufacturing method thereof. The electroluminescent device comprises: a substrate; a micro light emitting diode unit, configured to emit light of a first color in a first direction; and an organic light emitting diode unit, configured to emit light of a second color in the first direction, wherein the micro light emitting diode unit and the organic light emitting diode unit are disposed on the substrate in a stack, such that light of the first color and light of the second color are mixed to generate mixed light, and the first direction is a direction towards the substrate or a direction away from the substrate.

Electroluminescent device having stacked micro light emitting diode unit and organic light emitting diode unit, display device and manufacturing method thereof

A method of fabricating a substrate includes forming a planarization layer, and forming the planarization layer includes: forming a first planarization sub-layer on a base substrate on which a patterned film layer has been formed. A surface of the first planarization sub-layer facing away from the base substrate has a plurality of depressed portions. Forming the planarization layer further includes: forming a second planarization sub-layer at multiple depressed portions of the plurality of the depressed portions to obtain the planarization layer including the first planarization sub-layer and the second planarization sub-layer. A flatness of a surface of the planarization layer is higher than a flatness of the surface of the first planarization sub-layer.

Substrate and method of fabricating the same, display panel, and display device

The present disclosure relates to the field of display technology and provides an organic light emitting diode, an OLED display substrate and a display device. It can solve the problem of low continuity in inkjet printing and complicated computer programs between different materials of light emitting layers in the existing organic light emitting diodes. The organic light emitting diode includes a cathode, an anode, and a functional layer between the cathode and the anode; wherein the functional layer includes a first light emitting layer and a second light emitting layer disposed in sequence in a direction away from the anode; the first light emitting layer comprises a first material emitting blue light; and the first light emitting layer and the second light emitting layer form an aggregate in excited state for emitting light of a color different from blue after the cathode and the anode are connected.

Organic light emitting diode, OLED display substrate and display device

The film production method includes: forming an ink layer on the base substrate covering the surface of the base substrate, the ink layer including a solvent and a film-forming material dissolved in the solvent; blowing gas to the ink layer so that the solvent in the ink layer spreads towards the periphery of the base substrate; removing the solvent in the ink layer so that the film-forming material in the ink layer forms a film covering the surface of the base substrate.

Film production method and system

The present disclosure provides a display backboard, a method for fabricating the same and a display device. The display backboard includes a plurality of pixel units arranged in an array, each of the pixel units includes a plurality of sub-pixels, and each of the sub-pixels includes a substrate, a first electrode, a light emitting layer, and a second electrode stacked in sequence. The plurality of the sub-pixels have different emission colors, and thicknesses of the first electrodes among the plurality of the sub-pixels are different, and the thickness of the first electrode is configured so that an emission dipole of the sub-pixel is located at a second anti-node of standing wave on the first electrode side.

Display backboard, method for fabricating the same, and display device

An OLED device, a method for driving the OLED device, an OLED substrate, a method for manufacturing the OLED substrate, and a display device are provided. The OLED device includes: an anode, a first light emitting element, a common electrode, a second light emitting element, and a cathode, which are arranged in sequence.

OLED device, method for driving OLED device, OLED substrate, method for manufacturing OLED substrate and display device

An organic light emitting device with a double-doped system, which in particular emits blue light, as well as a method for manufacturing such an organic light emitting device are disclosed. The organic light emitting device includes a substrate; a first electrode on the substrate; a second electrode opposite to the first electrode; and an organic light emitting layer between the first electrode and the second electrode. The organic light emitting layer includes a first dopant and a second dopant. With an organic light emitting layer including a first dopant and a second dopant, this disclosure achieves an organic light emitting device with a double-doped system, wherein different dopants emitting light of different colors are mixed into a same light emitting layer. This further improves a service life and light emitting efficiency of the light emitting device.

Organic light emitting device and manufacturing method thereof

The present disclosure provides an organic electroluminescent device and a display device. The material of the blue light emitting layer in the organic electroluminescent device comprises an electron transport material and a hole transport material that can form a blue light exciplex. The proportions respectively occupied by the electron transport material and the hole transport material of the blue light emitting layer in all materials of the blue light emitting layer match with the abilities of the red light emitting layer and the green light emitting layer to transport electrons, so that electrons and holes would not recombine within and at an edge of the portion of the blue light emitting layer that covers the red light emitting layer and the green light emitting layer when the red light emitting layer and/or the green light emitting layer is required to emit light.

Organic electroluminescent device and display device

This disclosure provides an organic light-emitting diode display substrate, and a display apparatus and a production method thereof. The organic light-emitting diode display substrate of this disclosure comprises a blue pixel and a first color pixel, wherein first color light-emitting unit is provided in the first color pixel, and the first color light-emitting unit sequentially comprises a first electrode, a first functional layer, a first color light-emitting layer, a first carrier generation layer, a first blue light-emitting layer, a second carrier generation layer, a second blue light-emitting layer, a second functional layer, and a second electrode in a first direction, and comprises a first color filter; and a blue light-emitting unit is provided in the blue pixel, and the blue light-emitting unit sequentially comprises the first electrode, the first functional layer, the first carrier generation layer, the first blue light-emitting layer, the second carrier generation layer, the second blue light-emitting layer, the second functional layer, and the second electrode in the first direction.

Organic light-emitting diode display substrate, and display apparatus and production method thereof

A display panel, a driving method thereof, and a display device are provided in the field of display technology. The display panel includes: a plurality of sub-pixels arranged in an array. The plurality of sub-pixels arranged in an array include at least one target sub-pixel, and each target sub-pixel includes: a first electrode, a second electrode and N light-emitting units arranged in a laminated mode between the first electrode and the second electrode, wherein N is an integer greater than 1. A transparent electrode is arranged between any two adjacent light-emitting units among the N light-emitting units, and each light-emitting unit is configured to emit light under the drive of two electrodes adjacent thereto.

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Beijing, China

Chinlung Liao