Patents by Inventor Xiaofei LUO
Xiaofei LUO 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: 11656702Abstract: A display assembly includes a flexible display panel, a cover plate, and first and second support layers. The panel includes a main portion with display surface, and a bending portion. The bending portion includes a first straight sub-portion connected to the main portion, an arched sub-portion, and a second straight sub-portion located at a surface of the main portion facing away from the display surface. The cover plate is disposed above the main portion and the first straight sub-portion. The first support layer is located between the first and second straight sub-portions, between the main portion and the second straight sub-portion, and connected to the second straight sub-portion. The second support layer is disposed between the first straight sub-portion and the cover plate, and configured to support the first straight sub-portion. An orthogonal projection of the second support layer overlaps with an orthogonal projection of the first support layer.Type: GrantFiled: July 30, 2021Date of Patent: May 23, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Xiaofei Luo
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Publication number: 20230138250Abstract: The flexible display module can be curled, and may comprise: a flexible display panel having a display side and a rear side which are provided opposite to each other in a thickness direction of the flexible display panel; a first functional film layer, formed on a display side of the flexible display panel; and a second functional film layer, formed on the rear side of the flexible display panel. The ratio of the thickness of the second functional film layer to the thickness of the first functional film layer is 0.5 to 1.5, and the ratio of the elasticity modulus of the second functional film layer to the elasticity modulus of the first functional film layer is 0.5 to 1.5. The flexible display module is not prone to peeling, losing efficacy and the like.Type: ApplicationFiled: November 15, 2021Publication date: May 4, 2023Applicant: BOE Technology Group Co., Ltd.Inventors: Jiahao ZHANG, Hong ZHU, Xiaofei LUO, Zhe YANG, Shangchieh CHU
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Publication number: 20230098597Abstract: A display apparatus and a display device, the display apparatus includes a first housing, a second housing, and a flexible display screen disposed on the first housing and the second housing; the flexible display screen includes a roll-up portion and a fixing portion that are connected to one another, the roll-up portion is at least partially disposed on the second housing, the fixing portion is at least partially disposed on the first housing, the second housing is slidably connected to the first housing, and at least part of the roll-up portion can slide out of or slide into the first housing following the second housing; a supporting structure is provided between at least part of the roll-up portion and the second housing, and the supporting structure provides a supporting force for the roll-up portion.Type: ApplicationFiled: November 19, 2021Publication date: March 30, 2023Inventors: Biao GAO, LU LIU, Hong ZHU, Ziang HAN, Zongyuan WANG, Xiaofei LUO
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Publication number: 20230087798Abstract: . The displaying device includes: a first housing, a second housing, a flexible screen, a supporting strip and a telescopic rod; first housing andsecond housing face each other, and first housing is provided with an opening at a position facing the second housing; one end of flexible screen is winded inside first housing, and the other end protrudes out of the opening and is fixed to second housing; one end of supporting strip is winded inside first housing, the other end protrudes out of opening and is fixed to second housing, and a portion of supporting strip that protrudes out of first housing clings to a bottom the flexible screen; and telescopic rod is disposed at a bottom of supporting strip, and one end of telescopic rod is fixed to first housing, and the other end is fixed to the second housing.Type: ApplicationFiled: June 1, 2021Publication date: March 23, 2023Inventors: Shangchieh CHU, Xiaofei LUO, Yanyan YANG, Hong ZHU, Zongyuan WANG
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Publication number: 20230056590Abstract: A flattening structure of a flexible screen (100), and a display device. The flattening structure includes a flexible screen storage device (200), a storage blocking member (300), and an elastic assembly (400), the flexible screen storage device (200) includes a housing (201) and a flexible screen reel (202) arranged in the housing (201); one end of the flexible screen (100) is connected to the flexible screen reel (202) and capable of being wound on the flexible screen reel (202), and the other end of the flexible screen (100) is connected to the storage blocking member (300) by means of the elastic assembly (400).Type: ApplicationFiled: March 22, 2021Publication date: February 23, 2023Inventors: Yanyan YANG, Yonghong ZHOU, Shangchieh CHU, Xiaofei LUO, Hong ZHU, Shouchuan ZHANG
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Publication number: 20230004189Abstract: A display apparatus includes a first housing provided with an opening therein, a first reel rotatably disposed in the first housing, a second reel rotatably disposed in the first housing, a flexible display panel, and a flexible support plate. The second reel and the first reel are arranged at intervals and extend in a same direction. A first end of the flexible display panel is connected to the first reel and wound on the first reel, and a first end of the flexible support plate is connected to the second reel and wound on the second reel. The flexible display panel and the flexible support plate are configured such that when the flexible display panel and the flexible support plate extend out of the first housing to through the opening, the flexible support plate is capable of gradually attaching to the first housing to support the flexible display panel.Type: ApplicationFiled: May 13, 2021Publication date: January 5, 2023Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaofei LUO, Shangchieh CHU, Yanyan YANG
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Patent number: 11540404Abstract: A supporting structure includes a supporting structure body and a fixing member fixedly connected to the supporting structure body. The supporting structure body is located in a gap inside a bending part of a bending structure of a display apparatus, a first end of the bending structure is fixedly connected to a front surface of a display panel in the display apparatus, a second end of the bending structure is located on a back of the display panel, and the first end and the second end are opposite ends. The display apparatus further includes a housing at least wrapping the bending part of the bending structure, and the fixing member is fixedly connected to the housing.Type: GrantFiled: April 13, 2020Date of Patent: December 27, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Baofeng Sun, Shangchieh Chu, Yonghong Zhou, Xiaofei Luo, Yanyan Yang
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Publication number: 20220346253Abstract: A flexible display apparatus, which belongs to the field of display devices. The flexible display apparatus comprises a shear fork frame (100), a housing (200), a reel (300), a flexible display screen (400), and a limiting mechanism (500), wherein the support frame (100) comprises a scissor rack (110); the housing (200) comprises a first portion (210) and a second portion (220), the first portion (210) is located at one end of the shear fork frame (110), and the second portion (220) is located at the other end of the shear fork frame (110); and the limiting mechanism (500) is connected to the shear fork frame (110), and at least one among the first portion (210) and the second portion (220) is provided with the limiting mechanism (500), so as to limit the relative movement of the portion where the limiting mechanism (500) is disposed with respect to the axis of the shear fork frame (110).Type: ApplicationFiled: July 7, 2021Publication date: October 27, 2022Inventors: Xiaofei LUO, Shangchieh CHU, Hong ZHU, Yanyan YANG
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Patent number: 11469395Abstract: The present disclosure discloses a rollable display device, including: a flexible display panel; a reel connected to one end of the flexible display panel, around which the flexible display panel is rollable and extendable; a support structure arranged on two side edges of the flexible display panel in a rolling direction thereof, and provided with a first fixing portion; wherein the reel is provided with a second fixing portion matched with the first fixing portion for fixing the support structure and the reel when the flexible display panel is rolled.Type: GrantFiled: April 24, 2020Date of Patent: October 11, 2022Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Xiaofei Luo, Shangchieh Chu, Hong Zhu, Yanyan Yang, Baofeng Sun
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Publication number: 20220276678Abstract: An under-screen support structure and a display device. The under-screen support structure is configured to support a rollable and slidable display screen (6) in the display device, and includes a sliding middle frame (1), a rotating shaft (2) and a support chain (3). The rotating shaft is mounted on the side of the sliding middle frame facing a rollable and slidable portion of the display screen, and the rotating shaft is transmittingly connected to the display screen by means of the support chain. The support chain includes a plurality of support strips, the extension direction of the support strips is parallel to the axis of the rotating shaft. The cross section of each support strip perpendicular to the axis of the rotating shaft is trapezoidal, and the size of the side facing away from the rotating shaft is greater than that of the side close to the rotating shaft.Type: ApplicationFiled: April 8, 2021Publication date: September 1, 2022Inventor: Xiaofei LUO
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Publication number: 20220253104Abstract: A rollable display device, comprising a housing (1), a driving mechanism and a flexible bearing film (4) which are provided in the housing (1), and a flexible display screen (5). The flexible bearing film (4) is configured to rotate under the driving of the driving mechanism; a first end of the flexible display screen (5) is fixed to the flexible bearing film (4), a second end of the flexible display screen (5) is configured to extend out of the housing (1) from an opening (101) formed in the housing (1), and the flexible display screen (5) can be rolled on the flexible bearing film (4) and can be unfolded under the pulling of external force.Type: ApplicationFiled: April 13, 2021Publication date: August 11, 2022Inventors: Xiaofei LUO, Shangchieh CHU, Hong ZHU
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Publication number: 20220238048Abstract: A display panel includes a base substrate and a flexible substrate layer. The base substrate includes a flat portion and a curved portion extending from the flat portion and curved towards a side of the base substrate facing away a display surface of the display panel. The flexible substrate layer includes a first portion on a side of the base substrate facing the display surface and a second portion on a side of the base substrate facing away from the display surface. The first portion includes a pixel circuit and the second portion includes a signal line electrically connected to the pixel circuit. The display panel further includes a support structure including a support surface facing away from the display surface, the second portion is coupled to the support surface, and a plane of the support surface intersects a plane of the flat portion of the base substrate.Type: ApplicationFiled: September 22, 2021Publication date: July 28, 2022Inventors: Biao GAO, Zhao LI, Xiaofei LUO
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Patent number: 11369029Abstract: The present disclosure proposes a rollable display device, including a scroll and a flexible screen. The scroll includes a housing and a rotating shaft, the rotating shaft is rotatably disposed in the housing, and the flexible screen includes a connecting end, the flexible screen is coupled to the rotating shaft through the connecting end, and the flexible screen is configured to be retractably wound on the rotating shaft. The flexible screen includes a cover film and an adhesive frame. The cover film includes a connecting section adjoining the connecting end. The adhesive frame is disposed on a side of the connecting section of the cover film facing the rotating shaft. The connecting section is coupled to the rotating shaft through the adhesive frame, and an orthographic projection of the connecting section on a plane perpendicular to an axial direction of the rotating shaft is arc-shaped or spiral-shaped.Type: GrantFiled: June 30, 2020Date of Patent: June 21, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Xiaofei Luo, Shangchieh Chu, Yanyan Yang, Baofeng Sun
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Patent number: 11367367Abstract: A reel type display device includes a shell with an accommodating space and an opening; a rotation shaft rotatably disposed in the accommodating space; a flexible screen having a connecting end connected to the rotation shaft and a retractable end configured to be retractable relative to the opening; and a driving mechanism, wherein two grooves opposite to each other are formed on an inner surface of the shell and extend along a second direction, and two end portions of the rotation shaft are in sliding fit with the two grooves, respectively. The driving mechanism is configured to drive the rotation shaft to translate along the two grooves according to a retractable state of the flexible screen, so that the portion of the flexible screen unwound from the rotation shaft extends along a first direction, wherein the second direction is perpendicular to a central axis direction of the rotation shaft.Type: GrantFiled: June 26, 2020Date of Patent: June 21, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shangchieh Chu, Xiaofei Luo
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Publication number: 20220173353Abstract: A flexible display module and a foldable display apparatus are provided. The flexible display module is assembled with a shell of the foldable display apparatus. The flexible display module includes a bending region, a display panel and a back plate provided on a side of the display panel away from a display side. The flexible display module further includes a support member disposed on a first surface of the back plate away from the display panel, wherein the support member is located in a middle region in a width direction of the bending region, and the support member is configured to be fixed with the shell. A first side surface of the support member is attached and fixed to the first surface of the back plate, a second side surface adjacent to the first side surface of the support member extends along a length direction of the bending region.Type: ApplicationFiled: June 28, 2021Publication date: June 2, 2022Inventors: Xiaofei LUO, Shangchieh CHU, Baofeng SUN, Yanyan YANG
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Publication number: 20220164001Abstract: A flexible screen display device includes: a hollow housing having an opening; a receiving shaft fixed inside the housing; a first guiding shaft fixed inside the housing; a second guiding shaft fixed inside the housing; a flexible screen, one end of which is connected to the receiving shaft, and the other end of which sticks out of the opening via the first guiding shaft and the second guiding shaft to deploy or receive the flexible screen. The first guiding shaft is close to the receiving shaft with respect to the second guiding shaft, and the flexible screen forms a one-time guided bending section via the first guiding shaft and the second guiding shaft.Type: ApplicationFiled: June 8, 2021Publication date: May 26, 2022Inventors: Shangchieh CHU, Xiaofei LUO, Zhe YANG, Junhuan LIU, Shouchuan ZHANG, Xinyu WANG, Hong ZHU
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Publication number: 20220141976Abstract: A display assembly includes a storage box and a flexible display screen. A storage groove is formed in the storage box and a side of the storage groove is open. The flexible display screen is able to be switched between an unfolded state and a folded state. In the unfolded state, the flexible display screen is unfolded and covers an open side of the storage groove, and in the folded state, the flexible display screen is folded or wound, and the open side of the storage groove is at least partially exposed.Type: ApplicationFiled: March 26, 2020Publication date: May 5, 2022Inventors: Yanyan YANG, Shangchieh CHU, Xiaofei LUO
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Publication number: 20220127106Abstract: A torsion spring used in a flexible display device includes a spring body having a first connection end configured to connect a reel of the flexible display device, and a second connection end configured to fix the torsion spring. An axial sectional area of the spring body near the first connection end is greater than an axial sectional area of the spring body away from the first connection end. When the reel rotates, the torsion force generated during the initial rotation of the reel is relatively large, and with the increase of the rotation turn number of the reel, the increase of the torsion force is relatively small.Type: ApplicationFiled: May 25, 2021Publication date: April 28, 2022Inventors: Yanyan YANG, Shangchieh CHU, Zongyuan WANG, Xiaofei LUO, Bei WANG
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Publication number: 20220097339Abstract: Provided are a preparation method of a display apparatus and the display apparatus, relating to a field of display technologies; wherein an edge of at least a side of a flexible display module of the display apparatus is bent to a back side of the flexible display module to form a first bending portion; the preparation method includes providing a flexible display assembly, which includes a flexible display module and a first supporting plate fitted to a display surface of the flexible display module; the first supporting plate is made of a rigid material; an edge of at least a side of the first supporting plate is bent toward a side where the flexible display module is located to form a second bending portion.Type: ApplicationFiled: August 19, 2021Publication date: March 31, 2022Inventors: LU LIU, Xiaofei LUO
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Publication number: 20220080697Abstract: A display panel, a display device and a manufacturing method thereof are provided. The display device includes a display panel laminated to the curved cover plate. A main display area, a first sub-area, and a second sub-area of the display panel each include multiple through holes penetrating through the display panel, and the through holes define pixel islands for display and bridges for signal transmission; the through holes are disposed around the pixel islands; a part of the bridge is located between the pixel island and the through hole, the other part is located between adjacent through holes.Type: ApplicationFiled: April 5, 2021Publication date: March 17, 2022Inventors: Fangxu CAO, Pinfan WANG, Haoran WANG, Xiaofei LUO, Yaming WANG, Zuojia WANG, Hejin WANG