Shenzhen China Star Optoelectronics Technology Co., Ltd.

Yifan Wang

Yawei Liu

Qinghua Zou

Wenhui Li

Longqiang Shi

Yi Cheng Zhang

Jiajia Qian

Changcheng Lo

Zhenguo Chi

Jiarui Xu

Shidang Xu

Xiaowen Lv

Wei Huang

Chihyu Su

Qiang Zhao

Shijian Su

Yunchuan Li

Taipi Wu

Kunkun Liu

Zhiheng Wang

Shujuan Liu

The present invention provides an OLED color display device, comprising a substrate (), an anode (), a thin film transistor array (), a Hole Injection Layer (), a Hole Transport Layer (), a light emitting layer (), an Electron Transport Layer (), a cathode (), a package cover plate (), a color conversion layer () and a seal frame (); the light emitting layer () comprises a first light emitting layer () and the second light emitting layer (), and both the first light emitting layer () and the second light emitting layer () are manufactured by host material doped with guest material, and the guest material comprises luminescent material and electron transport material; the first light emitting layer () is a blue light emitting layer, and the second light emitting layer () is a red, green lights commonly emitting layer, a yellow light emitting layer or a green light emitting layer; lights emitted by the first light emitting layer () and the second light emitting layer () synthesize white light or blue, green light possessing higher energy efficiency and luminescence efficiency. The power consumption is low.

OLED color display device

An OLED packaging method includes providing a substrate on which an OLED device is formed and a package lid that comprises a trough formed to correspond to the OLED device and receive a solid resin film therein, forming a loop of fritted glass on the package lid and outside the trough, forming a loop of inorganic protective frame made of silicon nitride on the substrate and at a location that is outside the trough and inside the fritted glass, forming a loop of adhesive on the package lid to correspond to the inorganic protective frame, and laminating the package lid and the substrate to each other such that the OLED device is covered by the solid resin film and the inorganic protective frame is adhered to the adhesive to form a combined circumferential wall, which surrounds, together with the fritted glass, the OLED device covered by the solid resin film.

OLED package structure and packaging method

A method for manufacturing an OLED display device that includes pixel areas is provided. A first and a second substrates are provided. TFTs are arranged on the first substrate. A passivation layer is formed on the TFTs such that the passivation layer includes a concave area formed in a surface thereof to expose a part of a drain of each of the TFTs. A transparent anode is formed on the second substrate. Partition walls are arranged on the transparent anode to defined therebetween transmission holes respectively corresponding to the pixel areas. An organic layer is formed on the transparent anode and located in the transmission holes. A metal cathode is formed on the organic layer and the partition walls such that the metal cathode is receivable into the concave area and electrically engageable with the exposed part of the drain of each of the TFTs.

OLED display device and manufacture method thereof

The present invention provides a color display device, including a substrate, an anode formed on the substrate, a TFT array formed on the anode, a hole injection layer formed on the TFT array, a hole transporting layer formed on the hole injection layer, a white light emission layer formed on the hole transporting layer, an electron transporting layer formed on the white light emission layer, a cathode formed on the electron transporting layer, a cover plate disposed above the cathode and bonded to the substrate, a color change layer formed on an inside surface of the cover plate, and a sealing enclosure resin bonding the substrate and the cover plate together, wherein the color change layer includes a blue sub-pixel zone, a green sub-pixel zone, a red sub-pixel zone, and a white sub-pixel zone that are spaced from each other, the blue sub-pixel zone including a blue light filter layer formed therein, the green sub-pixel zone including a green light filter layer or a green light change layer formed therein, the red sub-pixel zone including a red light filter layer or a red light change layer formed therein, the white sub-pixel zone comprising no filter layer formed therein.

Color display device

The present invention provides method for manufacturing a TFT backplane and a structure of a TFT backplane. The method includes (1) forming a gate terminal () and a first metal electrode Mon a substrate (); (2) sequentially forming a gate insulation layer (), a semiconductor layer, and an etch stop layer on the gate terminal (), the first metal electrode M, and the substrate () in a successive manner and applying a photolithographic operation to form an island-like semiconductor layer () and an island-like etch stop layer (); (3) applying a photolithographic operation to patternize the island-like etch stop layer () and the gate insulation layer () to form a plurality of etch stop layer vias () and a gate insulation layer via (); (4) forming source/drain terminals () and a second metal electrode M; (5) forming a passivation protection layer (); (6) forming a planarization layer (); (7) forming a pixel electrode layer (); (8) forming a pixel definition layer (); and (9) forming a spacer pillar ().

Method for manufacturing TFT backplane and structure of TFT backplane

The present invention provides an OLED display device and a manufacture method thereof, and the OLED display device comprises a first substrate (), a second substrate () spaced and oppositely located with the first substrate (), a plurality of thin film transistors () located at an inner surface of the first substrate (), a transparent anode () located at an inner surface of the second substrate (), a plurality of partition walls () located on the transparent anode (), transmission holes () formed among the partition walls (), an organic layer () located on the transparent anode () and in the transmission holes (), a metal cathode () located on the organic layer () and the partition walls (), and the metal cathode () is electrically connected to a drain of the thin film transistor (). The OLED display device possesses a high aperture ratio and high transmittance. The manufacture method of the OLED display device provided by the present invention can manufacture an OLED display device with a high aperture ratio and high transmittance, and promote the yield and the productivity.

The present invention provides an OLED package structure and a packaging method. The structure includes a substrate (), a package lid () opposite to the substrate (), an OLED device () located between the substrate () and the package lid () and mounted on the substrate (), a solid resin film () located between the substrate () and the package lid () and arranged on the package lid () to completely cover the OLED device (), an inorganic protective frame () arranged on the substrate () and located outside an outer circumference of the solid resin film (), adhesive () applied on the package lid () to bond the inorganic protective frame () and the package lid () to each other, and fritted glass () arranged outside an outer circumference of the inorganic protective frame () to bond the substrate () and the package lid () to each other. The present invention provides an arrangement where the inorganic protective frame is arranged inboard the fritted glass to effectively strengthen air tightness achieved with the fritted glass. Further, the solid resin film is arranged on the package lid to cover the OLED device so as to further strengthen the capability of the OLED package structure for blocking moisture and also, a gap in the interior of the sealed object is lessened so as to provide a sufficient mechanical strength to extend the lifespan of the OLED device.

The invention provides a thioxanthone aromatic amine compound and an organic light emitting device using the compound. The thioxanthone aromatic amine compound includes a compound expressed by formula (I) or formula (II): where Arand Areach are selected from ammonia compounds with structures respectively expressed by formula (III) to formula (VII), or hydrogen atom, thioxanthone aromatic amine compound of the invention has single structure, determinate molecular weight, and has better solubility and film-forming property, and also has low biochemical temperature and decomposition temperature, and stable film morphology.

Thioxanthone aromatic amine compound and organic light emitting device using the same

A manufacturing method of an AMOLED backplane includes manufacturing a TFT substrate and forming a corrugation structure on the TFT substrate, which includes raised sections and recessed sections alternating each other; coating organic photoresist on the TFT substrate that includes the corrugation structure formed thereon to form a planarization layer in such a way that an upper surface of a portion of the planarization layer corresponding to and located above the corrugation structure includes a curved configuration corresponding to the corrugation structure; forming a pixel electrode on the planarization layer in such a way that the pixel electrode shows a curved configuration; and forming, in sequence, a pixel definition layer that has an opening to expose the curved configuration and a photo spacer on the pixel electrode and the planarization layer.

AMOLED backplane structure and manufacturing method thereof

The present invention provides a method for manufacturing an OLED device and an OLED device manufactured therewith. The method for manufacturing an OLED device includes: (1) providing a substrate and forming, in sequence, an anode and a hole transporting layer on the substrate; (2) forming an emissive layer on the hole transporting layer through a solution film casting process, wherein the emissive layer comprises a red sub-pixel, a green sub-pixel, and a blue sub-pixel, of which at least one sub-pixel is formed of a quantum dot and at least one sub-pixel is formed of an organic light-emitting material; (3) forming, in sequence, an electron transporting layer and a cathode on the emissive layer; and (4) providing a package cover plate, which is set above the cathode, wherein the substrate and the package cover plate are bonded together by sealing enclosing resin to complete packaging of the OLED device. Since each sub-pixel of the emissive layer is formed through a solution film casting process, the manufacture of the OLED device requires no use of a fine metal mask so that the manufacturing cost is low, the utilization rate of material is high, and the yield rate is good.

Method for manufacturing OLED device and OLED device manufactured therewith

The present invention provides a method for manufacturing an OLED device and an OLED device manufactured therewith. The method for manufacturing an OLED device includes: (1) providing a substrate and forming, in sequence, an anode and a hole transporting layer on the substrate; (2) forming an emissive layer on the hole transporting layer through a solution film casting process, wherein the emissive layer comprises a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel, of which at least one sub-pixel is formed of a quantum dot and at least one sub-pixel is formed of an organic light-emitting material; (3) forming, in sequence, an electron transporting layer and a cathode on the emissive layer; and (4) providing a package cover plate, which is set above the cathode, wherein the substrate and the package cover plate are bonded together by sealing enclosing resin to complete packaging of the OLED device. Since each sub-pixel of the emissive layer is formed through a solution film casting process, the manufacture of the OLED device requires no use of a fine metal mask so that the manufacturing cost is low, the utilization rate of material is high, and the yield rate is good.

The present invention provides a conductive flexible substrate and a manufacture method thereof and an OLED display device and a manufacture method thereof. The conductive flexible substrate comprises a flexible substrate (), mesh conductive lines () located on the flexible substrate () and embossing from a surface of one side of the flexible substrate (), and a conductive layer () filling among the mesh conductive lines (); a surface of one side of the flexible substrate () away from the mesh conductive lines () and the conductive layer () is flat. The conductive flexible substrate is capable of promoting the conductivity of the flexible substrate, and applying the conductive flexible substrate to an OLED display device can solve the issue of low conductivity of anodes in the OLED display device.

Conductive flexible substrate and manufacture thereof, and OLED display device and manufacture method thereof

The present invention provides an OLED pixel structure, comprising: red, green and blue sub pixels, and the red sub pixel comprises a red light emitting layer, and the green sub pixel comprises a green light emitting layer, and the blue sub pixel comprises a blue light emitting layer, and material of the blue light emitting layer comprises inorganic quantum dots, and the blue light emitting layer emits white light, and a blue light filter is located corresponding to the blue sub pixel. By the blue sub pixel utilizing inorganic quantum dots+blue light filter, the stability and the life time of the OLED elements have been obviously promoted. The present invention further adds a white sub pixel, and the white sub pixel comprises a white light emitting layer, and material of the white light emitting layer comprises inorganic quantum dots. With the added white sub pixel, the luminous efficiency of the OLED is raised and the energy consumption thereof is reduced.

OLED pixel structure

The present invention provides an AMOLED backplane structure and a manufacturing method thereof. In each sub-pixel, a TFT substrate (TS) includes a corrugation structure () formed in an area corresponding to an opening () of a pixel definition layer (). The corrugation structure () includes a plurality of raised sections () and a recessed section () formed between every two adjacent ones of the raised sections (). An upper surface of a portion of the planarization layer () and a portion of a pixel electrode () that correspond to and are located above the corrugation structure () include curved surfaces corresponding to the corrugation structure (). The AMOLED backplane structure helps ensure the planarization layer () is smooth and free of abrupt change sites and also makes the pixel electrode () in a form of a curved surface to increase an effective displaying surface, extend the lifespan of the OLED, reduce difficulty of manufacturing, and improve resolution.

The present invention provides a thermally activated delayed fluorescence material, a method of synthesizing the same and an OLED device using the same. The thermally activated delayed fluorescence material includes a structure formula 1 as wherein the group Ar1 is identical to or different from the group Ar2, and the group Ar1 and the group Ar2 are consisted of carbazole and/or phenothiazine. The thermally activated delayed fluorescence material has a higher glass transition temperature, high thermal stability and excellent luminous efficiency. The method of synthesizing the same has simplified steps, easily purified product, high yield, and luminous and thermal properties of the product can be adjusted by connecting to differentiated functional groups. The OLED device using the same has a light emitting layer of high fluorescence efficiency and long-term stability, so that luminous efficiency and service life of the OLED device can meet practical demand.

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Guangdong, China

Yifan Wang