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公开(公告)号：US12198626B2
公开(公告)日：2025-01-14
申请号：US18168976
申请日：2023-02-14
Inventor： Yong Yuan , Nana Xiong , Jujian Fu
IPC: G09G3/3233
Abstract: A display panel and a display device are provided. The display panel includes pixel circuits. Each pixel circuit includes a driving transistor, a data writing circuit, a light-emitting control circuit, a threshold compensation circuit and a bias adjustment circuit. The driving transistor includes a gate electrically connected to a first node, a first terminal electrically connected to a second node, and a second terminal electrically connected to the third node, and is configured to generate a driving current. The third node is connected to a light-emitting element through the light-emitting control circuit. The bias adjustment circuit is configured to provide a signal of a bias adjustment signal terminal to the second node under control of a signal of a first scanning signal terminal in such a manner that a bias state of the driving transistor is adjusted.
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2.发明授权公开(公告)号：US12120924B2
公开(公告)日：2024-10-15
申请号：US17535593
申请日：2021-11-25
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Jujian Fu , Shaorong Yu
IPC: H01L27/32 , H01L25/16 , H10K59/00 , H10K59/122
CPC classification number: H10K59/122
Abstract: Provided are a display panel and a display device. The display panel includes a display area, the display area includes transparent display regions, where film layers in at least two display regions of transparent display regions have different thicknesses, and/or the film layers in the at least two adjacent transparent regions are made of different materials.
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公开(公告)号：US11817047B2
公开(公告)日：2023-11-14
申请号：US18089808
申请日：2022-12-28
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Xingda Xia , Jujian Fu , Nana Xiong , Yuqi Hu
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0809 , G09G2310/061 , G09G2320/0247 , G09G2330/02
Abstract: A display panel includes a pixel circuit that includes a light emitting module, a driving module, a first dual control module, and a second dual control module. A control end of the driving module is connected to a first node. The first dual control module has a control end connected to a first scanning line and has a first end connected to the first node. A first capacitor is formed between an intermediate node of the first dual control module and a first potential line. The second dual control module has a first end connected to the first node and has a second end connected to the driving module. A second capacitor is formed between an intermediate node of the second dual control module and a second potential line. Capacitance of one of the first capacitor and the second capacitor is greater than another.
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4.发明授权公开(公告)号：US11139284B2
公开(公告)日：2021-10-05
申请号：US16731086
申请日：2019-12-31
Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Inventor： Xiao Chi , Shaorong Yu , Jujian Fu
Abstract: Provided are a display panel and a display device. The display panel includes a first display area and a second display area. The first display area is reused as a sensor reserved area. The first display area includes a plurality of first pixel units. The second display area includes a plurality of second pixel units. The plurality of first pixel units include micro light-emitting diode pixel units, and the plurality of second pixel units include organic light-emitting diode pixel units. The first display area at least includes a region in which density of the plurality of first pixel units in the first display area is configured to be gradually decreased along a first direction.
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公开(公告)号：US11054686B2
公开(公告)日：2021-07-06
申请号：US16719429
申请日：2019-12-18
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Jujian Fu
IPC: G02F1/1333 , G02F1/1343 , G02F1/29
Abstract: Provided are a display panel, a display device and a manufacturing method of a display panel. The display panel includes: a display region including a first display region and a second display region. In the first display region, a surface of a first substrate facing towards a second substrate is provided with a plurality of organic light emitting elements. In the second display region, a surface of the second substrate facing towards the first substrate is provided with a plurality of Micro Light Emitting Diodes (LEDs) and a plurality of second traces. An encapsulation frame is further configured between the first substrate and the second substrate, and the encapsulation frame is disposed in a frame region and surrounds the display region. In the frame region, the surface of the first substrate facing towards the second substrate is provided with a plurality of first traces.
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Patent Agency Ranking
公开(公告)号：US10985205B2
公开(公告)日：2021-04-20
申请号：US16252709
申请日：2019-01-21
Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Inventor： Jujian Fu
Abstract: A display panel and a method for manufacturing the display panel are provided. The method includes providing a first substrate, forming a buffer layer including at least one first buffer layer on a first side of the first substrate; forming a LED structure including a first LED structure on a side of the buffer layer facing away from the first substrate, forming a planarization layer covering the LED structure on a side of the LED structure facing away from the buffer layer, forming an electrode structure connected to the LED units on a side of the planarization layer facing away from the LED structure, and forming a control circuit on a side of the electrode structure facing away from the LED structure, where the control circuit is electrically connected to the electrode structure and configured to control operation states of the LED units.
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公开(公告)号：US10672830B2
公开(公告)日：2020-06-02
申请号：US16219969
申请日：2018-12-14
Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Abstract: A flexible light emitting diode (LED) display panel and an electronic device are provided. A bonding enhancement structure is arranged in the flexible LED display panel, so that a stress generated by a first electrode structure on a flexible substrate during bending can be reduced, a bonding force between the first electrode structure and the bonding enhancement structure can be enhanced, and thus bonding stability of an LED unit can be improved. The flexible LED display panel is applied in the electronic device, so that the LED unit does not easily peel off, and display effect and service life of the electronic device can be greatly improved.
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公开(公告)号：US20190326330A1
公开(公告)日：2019-10-24
申请号：US16502042
申请日：2019-07-03
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Xingda Xia , Jujian Fu , Gang Liu
IPC: H01L27/12 , H01L25/075 , H01L27/15 , H01L33/62 , H01L33/00
Abstract: A Micro LED display substrate, a method for manufacturing the Micro LED display substrate, and a Micro LED display device are provided. In the method, the Micro LED is transferred onto the organic layer of the array substrate, one etching is performed to form through hole on both the protective layer and the array substrate, and then one metal deposition is performed to simultaneously form an electrode of the Micro LED and a structure electrically connecting the graphene layer with the source or drain electrode of the thin film transistor. Compared with the related art in which the electrode of the Micro LED and the structure electrically connecting the graphene layer with the source or drain electrode of the thin film transistor are formed through two etchings and two metal depositions, the method provided by the present disclosure saves the process steps, simplifies the process and reduces the costs.
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公开(公告)号：US11942047B2
公开(公告)日：2024-03-26
申请号：US18308408
申请日：2023-04-27
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Nana Xiong , Jujian Fu
IPC: G09G3/3291
CPC classification number: G09G3/3291 , G09G2300/08 , G09G2310/065
Abstract: A display panel and a display device are provided. One pixel circuit of the display panel includes a driving transistor, a second transistor, a third transistor, a reset module, and a first light-emission controlling module. The second transistor is connected between a data line and a source of the driving transistor, the third transistor is connected between a voltage adjusting signal line and the source of the driving transistor, the reset module is connected between a reset voltage input terminal and a gate of the driving transistor, and the first light-emission controlling module is connected between a first power supply terminal and the source of the driving transistor. An operation process of the display panel includes a light emitting phase, a data writing phase, a reset and adjustment phase, and a reset phase.
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公开(公告)号：US11670246B2
公开(公告)日：2023-06-06
申请号：US17565255
申请日：2021-12-29
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Nana Xiong , Jujian Fu
IPC: G09G3/3291
CPC classification number: G09G3/3291 , G09G2300/08 , G09G2310/065
Abstract: A display panel and a method for driving the same, and a display device are provided. The display panel includes a light emitting element and a pixel circuit that includes a data writing module configured to provide a data signal and an adjusting voltage, a driving module configured to provide a driving current to the light emitting element and including a driving transistor, and a compensation module configured to compensate a threshold voltage of the driving transistor. An operation process of the display panel includes a period of a data writing frame during which the pixel circuit executes a data writing phase during which the data writing module writes the data signal and a light emitting phase, and a period of a holding frame during which the pixel circuit executes a reset and adjustment phase during which the data writing module writes the adjusting voltage and the light emitting phase.
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