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公开(公告)号:US09698381B1
公开(公告)日:2017-07-04
申请号:US14778611
申请日:2015-08-24
Inventor: Hui Huang
CPC classification number: H01L51/5268 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092 , H01L51/5212 , H01L51/56 , H01L2251/556 , H01L2251/558
Abstract: A manufacturing method for an organic electroluminescent device disposes a scattering layer between a substrate and an anode. The scattering layer is made of a titanium dioxide film, and the titanium dioxide film is formed by an electrospinning process. The density and thickness of an electrospun membrane can be adjusted through a voltage and a distance between electrodes during the electrospinning process. The process parameters are easy to be adjusted and operability is increased to effectively improve a light efficiency. When a light exit from the anode and enter into the substrate inside the device, the scattering layer will scatter the light to change a light path within a critical angle of a total reflection in order to reduce an incident angle. Accordingly, a light which is supposed to be total reflected will be refracted so as to improve the light efficiency.
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公开(公告)号:US10600821B2
公开(公告)日:2020-03-24
申请号:US16112025
申请日:2018-08-24
Inventor: Hui Huang
Abstract: Provided is an organic light emitting diode display device and a manufacturing method thereof. The method includes: preparing a thin film transistor layer on a glass substrate; preparing a plurality of organic light emitting diode elements on a thin film transistor layer; preparing a barrier layer and a buffer layer on the thin film transistor layer, wherein the barrier layer covers the plurality of organic light emitting diode elements; preparing a plurality of island structures on the barrier layer or on the buffer layer, wherein the plurality of island structures are located a non-light emitting region on the barrier layer or the buffer layer. The path of water vapor entering the OLED display device can be prolonged to enhance the absorption of water vapor and to enhance the packaging result of the OLED display device.
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公开(公告)号:US10454065B1
公开(公告)日:2019-10-22
申请号:US16439658
申请日:2019-06-12
Inventor: Hui Huang
Abstract: A display screen includes an OLED device encapsulating structure that encapsulates an OLED. The OLED device encapsulating structure includes a substrate, a barrier layer formed on the substrate, a surface active layer disposed on the barrier layer, and a buffer layer stacked on the surface active layer. An orthogonal projection of the buffer layer on the barrier layer is coincident with that of the surface active layer on the barrier layer. A composite layer may be further stacked on the buffer.
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公开(公告)号:US20170162819A1
公开(公告)日:2017-06-08
申请号:US14785856
申请日:2015-08-24
Inventor: Hui Huang
IPC: H01L51/52 , G09G3/3208 , H01L51/00
CPC classification number: H01L51/5209 , G09G3/3208 , H01L51/0003 , H01L51/0014 , H01L51/0022 , H01L51/0026 , H01L51/0027 , H01L51/0037 , H01L51/52 , H01L51/5206 , H01L51/5221 , H01L51/5271 , H01L51/5275
Abstract: An organic electroluminescent device structure and manufacturing method for the same are provided. Surfaces of an anode, an organic electroluminescent structure and a cathode all have arc structures undulating periodically to avoid the total reflection in propagating an exit light to the substrate, increasing the light efficiency. Utilizing a PEDOT:PSS thin film as a material for the anode to replace an ITO material, the cost is reduced. The manufacturing method utilizes a wet coating process to form the PEDOT:PSS thin film as the anode so as to reduce the cost. Utilizing a transfer-printing method to pattern the PEDOT:PSS thin film to form an arc structure undulating periodically on the PEDOT:PSS thin film (the anode) to avoid the total reflection inside the organic electroluminescent device such that most light can be propagated out from the substrate. Accordingly, a light efficiency of the bottom-emitting type organic electroluminescent device is increased.
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公开(公告)号:US11024679B2
公开(公告)日:2021-06-01
申请号:US16307136
申请日:2018-09-14
Inventor: Hui Huang
Abstract: The present invention teaches a CF substrate, its manufacturing method, and a WOLED display device. The CF substrate includes a substrate, a pixel definition layer, and multiple filter patterns. The pixel definition layer has multiple openings, each corresponding to a sub-pixel area of the substrate. Each filter pattern is disposed on the substrate inside an opening of the pixel definition layer, and includes a quantum dot layer and a filter layer sequentially formed on the substrate. The CF substrate requires a single lithographic process to form the openings. The quantum dot layers and filter layers of the filter patterns are then formed by solution film formation in the openings, effectively simplifying the manufacturing process and enhancing the production efficiency. Applying the CF substrate to a WOLED display device also enhances the lighting efficiency, color gamut, and product quality of the WOLED display device.
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公开(公告)号:US20210083010A1
公开(公告)日:2021-03-18
申请号:US16307136
申请日:2018-09-14
Inventor: Hui Huang
IPC: H01L27/32
Abstract: The present invention teaches a CF substrate, its manufacturing method, and a WOLED display device. The CF substrate includes a substrate, a pixel definition layer, and multiple filter patterns. The pixel definition layer has multiple openings, each corresponding to a sub-pixel area of the substrate. Each filter pattern is disposed on the substrate inside an opening of the pixel definition layer, and includes a quantum dot layer and a filter layer sequentially formed on the substrate. The CF substrate requires a single lithographic process to form the openings. The quantum dot layers and filter layers of the filter patterns are then formed by solution film formation in the openings, effectively simplifying the manufacturing process and enhancing the production efficiency. Applying the CF substrate to a WOLED display device also enhances the lighting efficiency, color gamut, and product quality of the WOLED display device.
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公开(公告)号:US10818876B2
公开(公告)日:2020-10-27
申请号:US16091014
申请日:2018-09-12
Inventor: Hui Huang
Abstract: The present disclosure relates to an organic light-emitting diode (OLED) display panel, including: a substrate, an OLED array layer configured on the substrate, a thin film packaging layer configured on the substrate and the OLED array layer, and a light extraction layer configured within the thin film packaging layer. The OLED array layer includes a plurality of OLED components arranged in matrix. The thin film packaging layer includes at least two inorganic barrier layers and at least one organic buffer layer. One side of the inorganic barrier layer facing away the substrate includes a plurality of pixel grooves corresponding to tops of each of the OLED components. The light extraction layer is configured within the pixel grooves, and the light extraction layer is covered by a flattening film configured to seal the light extraction layer within the pixel grooves, so as to flatten a surface of the inorganic barrier layer.
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公开(公告)号:US10454064B2
公开(公告)日:2019-10-22
申请号:US16416012
申请日:2019-05-17
Inventor: Hui Huang
Abstract: A method for encapsulating an OLED device includes providing a substrate on which a barrier layer is formed; forming a surface active layer that includes multiple strips on the barrier layer; forming buffer strips on the surface active layer to correspond, in a one-to-one manner, to the strips of the surface active layer; and allowing the buffer strips to spread over the substrate and cover the barrier layer to form a buffer layer. The surface active layer that is sandwiched between and in direct contact with the barrier layer and the buffer layer includes a material that creates a hydrogen bond with a material of the buffer layer to enhance bonding therebetween.
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公开(公告)号:US10297753B2
公开(公告)日:2019-05-21
申请号:US15544253
申请日:2017-06-29
Inventor: Hui Huang
Abstract: The present disclosure relates to a manufacturing method of flexible OLED. The method includes: S1: forming an anode and a hole transport layer on substrate being stacked in sequence, and forming a cathode and an electron transport layer being stacked in sequence; S2: applying an acidification process to a surface of the electron transport layer to obtain a cover assembly, and applying the acidification process to a surface of the hole transport layer; S3: forming a stopper chamber on the hole transport layer after being applied with the acidification process; S4: injecting liquid luminescent material into the stopper chamber to form a light emitting layer so as to obtain the substrate; S5: clasping the cover assembly on the substrate, and configuring the electron transport layer being applied with the acidification process to face toward the light emitting layer so as to obtain the flexible OLED.
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公开(公告)号:US10038159B2
公开(公告)日:2018-07-31
申请号:US14785856
申请日:2015-08-24
Inventor: Hui Huang
IPC: H01L51/52 , G09G3/3208 , H01L51/00
CPC classification number: H01L51/5209 , G09G3/3208 , H01L51/0003 , H01L51/0014 , H01L51/0022 , H01L51/0026 , H01L51/0027 , H01L51/0037 , H01L51/52 , H01L51/5206 , H01L51/5221 , H01L51/5271 , H01L51/5275
Abstract: An organic electroluminescent device structure and manufacturing method for the same are provided. Surfaces of an anode, an organic electroluminescent structure and a cathode all have arc structures undulating periodically to avoid the total reflection in propagating an exit light to the substrate, increasing the light efficiency. Utilizing a PEDOT:PSS thin film as a material for the anode to replace an ITO material, the cost is reduced. The manufacturing method utilizes a wet coating process to form the PEDOT:PSS thin film as the anode so as to reduce the cost. Utilizing a transfer-printing method to pattern the PEDOT:PSS thin film to form an arc structure undulating periodically on the PEDOT:PSS thin film (the anode) to avoid the total reflection inside the organic electroluminescent device such that most light can be propagated out from the substrate. Accordingly, a light efficiency of the bottom-emitting type organic electroluminescent device is increased.
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