Patents by Inventor Shengfang LIU
Shengfang LIU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11910632Abstract: An organic light-emitting diode display device is provided, including an anode layer, a cathode layer, a first light-emitting layer, and a second light-emitting layer disposed between the anode layer and the cathode layer, wherein the first light-emitting layer comprises a first light-emitting part, a second light-emitting part, and a third light-emitting part arranged side-by-side, the second light-emitting layer is configured to emit light of a same color as light emitted from the first light-emitting part, and the organic light-emitting diode display device further includes a charge generating layer disposed between the second light-emitting layer and the first light-emitting part.Type: GrantFiled: June 30, 2020Date of Patent: February 20, 2024Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Shengfang Liu, Weiwei Li
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Patent number: 11910704Abstract: An organic light emitting diode device and a display panel are provided. The display panel includes the organic light emitting diode device. The organic light emitting diode device includes an emitting material layer. The emitting material layer includes a first common blue-light light-emitting layer, a red-green-blue light emitting layer, and a second common blue-light light-emitting layer.Type: GrantFiled: August 26, 2020Date of Patent: February 20, 2024Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Shengfang Liu, Weiwei Li, Mugyeom Kim
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Patent number: 11832481Abstract: A display panel and a display device are provided. The display panel includes an array substrate, a first electrode, a pixel defining block, an organic common layer, a second electrode, an adhesive layer, and a thin film encapsulation layer. The organic common layer corresponding to the pixel defining block is defined with a through hole, and the adhesive layer is filled, which realizes a strong adhesion between the second electrode and the pixel defining block, and reduces a risk of peeling between layers of the organic common layer.Type: GrantFiled: June 18, 2020Date of Patent: November 28, 2023Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Congcong Fan, Shengfang Liu
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Patent number: 11825738Abstract: An organic light-emitting diode device and a display panel are provided. The display panel includes the organic light-emitting diode device. The organic light-emitting diode device includes a light-emitting material layer. The light-emitting material layer includes a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit; wherein the blue light-emitting unit includes a blue light-emitting layer and a charge connecting layer arranged in a stack.Type: GrantFiled: August 26, 2020Date of Patent: November 21, 2023Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Weiwei Li, Shengfang Liu
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Publication number: 20230329029Abstract: A full-color silicon-based organic light-emitting diode (OLED) display device includes a base plate, a metal anode, an organic functional layer, a metal cathode, a thin film encapsulation (TFE) layer, and a color filter layer that are sequentially stacked from bottom to top. The metal anode includes a first indium tin oxide (ITO) anode layer and a second ITO anode layer each of which has a different thickness. The color filter layer includes a red (R) filter and a blue (B) filter, which are coated on a light-emitting region, which corresponds to the first ITO anode layer, of the TFE layer. The present disclosure overcomes the problem that the top-emission white OLED (WOLED) with a single optical thickness in the prior art is prone to color shift because the R, green (G), and B lights correspond to optical microcavities with different thicknesses.Type: ApplicationFiled: December 8, 2021Publication date: October 12, 2023Applicant: ANHUI SEMICONDUCTOR INTEGRATED DISPLAY TECHNOLOGY CO. LTDInventors: Zhengtao ZHAO, Shengfang LIU, Weiwei LI, Xiaojia LIU, Lei LV, Song XU
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Patent number: 11758703Abstract: A display module and a display device, the display module includes a display panel including a substrate, a driving circuit layer, and a display function layer; a heat dissipation layer is arranged on a side of the substrate away from the driving circuit layer and configured to dissipate heat of the display panel, a material of the heat dissipation layer comprises a thermally conductive metal material; the heat dissipation layer comprises a plurality of heat dissipation channels regularly arranged, and each of the heat dissipation channels is configured to pass a heat dissipation medium, thereby alleviating a problem of heat concentration in current vehicle-mounted display devices.Type: GrantFiled: August 5, 2020Date of Patent: September 12, 2023Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Changjian Song, Siping Wu, Weiwei Li, Shengfang Liu
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Publication number: 20230232654Abstract: A full-color silicon-based organic light-emitting diode structure includes a metal anode layer, an organic functional layer, a metal cathode layer, an encapsulation layer, and a color filter layer. The organic functional layer includes a light-emitting layer configured to emit white light. The light-emitting layer includes a red light-emitting unit, a blue light-emitting unit, a green light-emitting unit, and a light-emitting common transport layer. The red light-emitting unit and the blue light-emitting unit are vapor-deposited on the same fine metal mask, and other structural film layers are vapor-deposited on a common metal mask. The present disclosure overcomes problems that red, green, and blue spectra cannot appear at the same time due to different lengths of red, green, and blue resonant cavities, the color gamut of the product is low due to large intensity differences, and the product life is affected due to large light loss caused by the color filter.Type: ApplicationFiled: December 8, 2021Publication date: July 20, 2023Applicant: ANHUI SEMICONDUCTOR INTEGRATED DISPLAY TECHNOLOGY CO. LTDInventors: Lei LV, Weiwei LI, Shengfang LIU, Xueyuan LI, Zhengtao ZHAO, Song XU
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Publication number: 20230112449Abstract: A display panel and a display device are provided. The display panel comprises an array substrate, a first electrode, a pixel defining block, an organic common layer, a second electrode, an adhesive layer, and a thin film encapsulation layer. The organic common layer corresponding to the pixel defining block is defined with a through hole, and the adhesive layer is filled, which realizes a strong adhesion between the second electrode and the pixel defining block, and reduces a risk of peeling between layers of the organic common layer.Type: ApplicationFiled: June 18, 2020Publication date: April 13, 2023Inventors: Congcong FAN, Shengfang LIU
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Patent number: 11469398Abstract: A display panel, a display device, and a method of manufacturing a display panel are provided. As an example, the display panel includes an array layer, a planarization layer, an inorganic layer, and at least one dam. The array layer includes a first region and a second region surrounding the first region. The planarization layer is at least partially located on a portion of the array layer which is at the first region. The inorganic layer is located on a portion of the array layer which is at the second region. The at least one dam is formed on the inorganic layer.Type: GrantFiled: April 6, 2020Date of Patent: October 11, 2022Assignee: Yungu (Gu'an) Technology Co., Ltd.Inventors: Shengfang Liu, Ping Zhu, Qingqing Dong, Xueyuan Li, Yibo Zhang, Haojie Zhang
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Patent number: 11462689Abstract: The present disclosure discloses an organic light-emitting device, which includes a first electrode and a hole injection layer laminated with each other and formed an ohmic contact therebetween. The hole injection layer is characterized by a carrier mobility of less than 2×10?5 CM2V?1S?1.Type: GrantFiled: April 28, 2018Date of Patent: October 4, 2022Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.Inventors: Chao Min, Jingwen Tian, Shengfang Liu
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Publication number: 20220304199Abstract: A display module and a display device, the display module includes a display panel including a substrate, a driving circuit layer, and a display function layer; a heat dissipation layer is arranged on a side of the substrate away from the driving circuit layer and configured to dissipate heat of the display panel, a material of the heat dissipation layer comprises a thermally conductive metal material; the heat dissipation layer comprises a plurality of heat dissipation channels regularly arranged, and each of the heat dissipation channels is configured to pass a heat dissipation medium, thereby alleviating a problem of heat concentration in current vehicle-mounted display devices.Type: ApplicationFiled: August 5, 2020Publication date: September 22, 2022Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Changjian Song, Siping Wu, Weiwei Li, Shengfang Liu
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Patent number: 11404681Abstract: A display panel, a manufacturing method thereof, and a display device. The manufacturing method includes: providing a pretreatment solution containing a water-soluble organic protective agent, and forming, on an anode, a solution layer covering the anode; drying the solution layer to form an adhesive layer; removing the adhesive layer; and drying the anode; where the pretreatment solution contains 10-30% by weight of propylene glycol methyl ether and 70-90% by weight of water.Type: GrantFiled: July 29, 2020Date of Patent: August 2, 2022Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.Inventors: Shengfang Liu, Ying Huang, Xueyuan Li, Ping Zhu, Lei Lv, Yibo Zhang
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Patent number: 11404672Abstract: The present disclosure provides a display panel, manufacturing method thereof, and a display device. The display panel includes a substrate, a functional layer formed on the substrate, and an encapsulation layer formed on the functional layer. The encapsulation layer includes an inorganic layer on the functional layer, the inorganic layer includes a first oxide layer and a second oxide layer, and a ratio of the number of atomic layers of the first oxide layer to the number of atomic layers of the second oxide layer ranges from 1:4 to 3:1.Type: GrantFiled: April 29, 2020Date of Patent: August 2, 2022Assignee: Yungu (Gu'an) Technology Co., Ltd.Inventors: Ping Zhu, Shengfang Liu, Xueyuan Li, Ying Huang
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Publication number: 20220190254Abstract: An organic light-emitting diode device and a display panel are provided. The display panel includes the organic light-emitting diode device. The organic light-emitting diode device includes a light-emitting material layer. The light-emitting material layer includes a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit; wherein the blue light-emitting unit includes a blue light-emitting layer and a charge connecting layer arranged in a stack.Type: ApplicationFiled: August 26, 2020Publication date: June 16, 2022Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Weiwei LI, Shengfang LIU
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Publication number: 20220190297Abstract: An organic light-emitting diode display device is provided, including an anode layer, a cathode layer, a first light-emitting layer, and a second light-emitting layer disposed between the anode layer and the cathode layer, wherein the first light-emitting layer comprises a first light-emitting part, a second light-emitting part, and a third light-emitting part arranged side-by-side, the second light-emitting layer is configured to emit light of a same color as light emitted from the first light-emitting part, and the organic light-emitting diode display device further includes a charge generating layer disposed between the second light-emitting layer and the first light-emitting part.Type: ApplicationFiled: June 30, 2020Publication date: June 16, 2022Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Shengfang LIU, Weiwei LI
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Publication number: 20220190253Abstract: An organic light emitting diode device and a display panel are provided. The display panel includes the organic light emitting diode device. The organic light emitting diode device includes an emitting material layer. The emitting material layer includes a first common blue-light light-emitting layer, a red-green-blue light emitting layer, and a second common blue-light light-emitting layer.Type: ApplicationFiled: August 26, 2020Publication date: June 16, 2022Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Shengfang LIU, Weiwei LI, Mugyeom KIM
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Patent number: 11335760Abstract: Display panel, manufacturing method thereof, and display device are provided. As an example, the display panel includes a substrate, a TFT layer formed on the substrate, and an encapsulation layer formed on the TFT layer. The TFT layer includes a thin film transistor with a source electrode, a drain electrode and a gate electrode, and further includes a first metal layer, a first inorganic layer on the first metal layer, and a second metal layer on the first inorganic layer. The second metal layer includes a first region and a second region, a hollowed-out region is formed between the first region and the second region, and the first region and the second region are electrically connected via the first metal layer. A portion of the encapsulation layer that is located in the hollowed-out region is in contact with the first inorganic layer.Type: GrantFiled: June 16, 2020Date of Patent: May 17, 2022Assignee: Yungu (Gu'an) Technology Co., Ltd.Inventors: Ping Zhu, Xueyuan Li, Shengfang Liu, Ying Huang, Qingqing Dong, Lei Lv
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Publication number: 20220139308Abstract: Disclosed are a display panel and a display apparatus. The display panel includes a plurality of display units arranged in an array, each of the display units including: a display device and a photosensitive device arranged in a same layer, wherein a light reflecting unit is provided at a side of each of the display units and is configured to partially reflect light emitted by the display device, to the photosensitive device to detect the light emitted by the display device to obtain brightness data.Type: ApplicationFiled: June 22, 2020Publication date: May 5, 2022Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Congcong FAN, Shengfang LIU
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Patent number: 11251402Abstract: A thin-film encapsulation structure includes a number of inorganic film layers and at least one organic film layer laminated alternately at one side of an organic light-emitting diode. The number of inorganic film layers include N inorganic film layers including first to N-th inorganic film layers arranged sequentially from inside to outside, N?2. At least the first inorganic film layer has a refractive index increasing gradually from inside to outside.Type: GrantFiled: April 28, 2018Date of Patent: February 15, 2022Assignee: Kunshan Go-Visionox Opto-Electronics Co., Ltd.Inventors: Shengfang Liu, Xueyuan Li, Ping Zhu, Ke Zhu, Xiaopeng Lv, Yanqin Song
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Patent number: 11233201Abstract: The present disclosure relates to an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device includes a hole injection layer including a first doped layer and/or a second doped layer. The first doped layer includes a P-type dopant, and the second doped layer includes a P-type dopant and a hole transport material. The organic electroluminescent device includes a hole transport layer formed on the hole injection layer, and an electron blocking layer formed on the hole transport layer. A difference in HOMO energy level between the electron blocking layer and the hole transport layer is less than or equal to 0.2 eV. The power consumption of the organic electroluminescent device can be reduced. The lifetime of the mass production device therefore can be increased.Type: GrantFiled: May 23, 2018Date of Patent: January 25, 2022Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.Inventors: Weiwei Li, Shengfang Liu, Chao Min, Lei Xu, Xiaoyu Gao, Xiuqi Huang