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公开(公告)号：US11124512B2
公开(公告)日：2021-09-21
申请号：US16810865
申请日：2020-03-06
发明人： Wenpeng Dai , Wei Gao , Jinghua Niu , Lei Zhang
IPC分类号： C07D471/06 , H01L51/52 , C07D519/00
摘要： The present disclosure provides an azapyrene compound, a display panel and a display apparatus. The compound has a structure represented by Chemical Formula 1, in which X1-X4 are each a nitrogen atom or C—Ra, one or two of X1-X4 are a nitrogen atom; only one of X1 and X2 is a nitrogen atom; only one of X3 and X4 is N; Ra is mainly hydrogen, deuterium, or C1-C10 alkyl; Ar1 and Ar2 are each C6-C30 aryl or C3-C30 heteroaryl; m and n are 0, 1, 2, or 3, and when one of m and n is 0, the other one of m and n is not 0; and L1 and L2 are a single bond, C6-C30 arylene, or C3-C30 heteroarylene; p and q are 0, 1, or 2. The compound can be used as a CPL material to improve external quantum efficiency (EQE) of an organic light-emitting device and light-emitting efficiency.
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公开(公告)号：US20210287596A1
公开(公告)日：2021-09-16
申请号：US17334823
申请日：2021-05-31
发明人： Jieliang LI , Yuping XU
摘要： A shift register and a display device are provided. A first control device, a second control device and an output device of the shift register all receive a first power signal and a second power signal as working power signals. The first control device controls a signal of a first node and a signal of a second node in response to a first drive signal. The second control device controls the signal of the first node in response to a second drive signal. The output device outputs a third drive signal in response to the signal of the first node or the signal of the second node, and the third drive signal is generated and outputted by utilizing the first drive signal and the second drive signal, and simplifying a circuit configuration of the shift register for generating the third drive signal.
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公开(公告)号：US11100832B2
公开(公告)日：2021-08-24
申请号：US16589644
申请日：2019-10-01
发明人： Mengzi Zhang , Fan Guo , Junjun Gan , Huangyao Wu , Shumao Wu , Guochang Lai , Xiufeng Zhou
IPC分类号： G09G3/14
摘要： Provided are a display panel and a display device. The display panel includes a display area and a non-display area surrounding the display area, the display area includes a first rectangular area and a first special-shaped area disposed adjacent to the first rectangular area, and the non-display area includes a second rectangular area adjacent to the first rectangular area and a second special-shaped area adjacent to the first special-shaped area. The display area includes pixel units arranged in an array, and a plurality of shift registers are disposed in the second rectangular area and the second special-shaped area, where each of the plurality of shift registers is connected to a row of pixel units. The second special-shaped area includes a laser cutting affected area, where none of the plurality of shift registers is disposed in at least part of the laser cutting affected area.
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公开(公告)号：US11063105B2
公开(公告)日：2021-07-13
申请号：US16821317
申请日：2020-03-17
发明人： Shui He , Shaorong Yu , Zhaokeng Cao
IPC分类号： H01L27/32 , H01L51/00 , H01L29/786 , H01L27/12 , H01L49/02
摘要： A display panel and fabrication method, and a display device are provided. The display panel includes a base substrate, a first transistor and a storage capacitor. The storage capacitor includes a first electrode and a second electrode, and the first electrode and a gate of the first transistor have an overlapped region. The display panel also includes a first insulating layer having a plurality of first vias in the overlapped region, and the first electrode is electrically connected to the gate of the first transistor through the plurality of first vias. A plurality of grooves are formed on a side of the first electrode facing away from the base substrate. A plurality of protrusions are formed on a side of the second electrode facing toward the base substrate. A groove, a protrusion and a first via overlap in a direction perpendicular to the surface of the base substrate.
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公开(公告)号：US20210183957A1
公开(公告)日：2021-06-17
申请号：US17164427
申请日：2021-02-01
发明人： Qing ZHANG , Feng LU , Yang ZENG , Qijun YAO
摘要： Provided are a display panel, a preparation method thereof and a display device. The display panel includes a light-emitting substrate and a color filter substrate; the color filter substrate includes: a substrate, a baffle wall layer and a reflective metal layer. The baffle wall layer is located on one side of the substrate and includes multiple baffle wall structures; the reflective metal layer includes a first reflective subsection covering a surface on a side, close to the light-emitting substrate, of the multiple baffle wall structures; the first reflective subsection includes multiple first metal subsections and multiple second metal subsections; and the multiple first metal subsections are independently disposed, and adjacent ones of the multiple second metal subsections along the first direction are connected to each other.
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公开(公告)号：US11037488B1
公开(公告)日：2021-06-15
申请号：US16916718
申请日：2020-06-30
发明人： Ting Wang , Hongbo Zhou , Huangyao Wu
IPC分类号： G09G3/32
摘要： Disclosed are a pixel driver circuit, a display panel, a display device, and a driving method. The pixel driver circuit includes a data write module, a storage module, a first potential adjustment module, a second potential adjustment module, a comparison module, and a light emission control module. The data write module is configured to write a data signal into a first node at a first stage. The first potential adjustment module and the second potential adjustment module are configured to adjust a potential of a second node at a second stage and at a third stage, causing the comparison module to output a first control signal and a second control signal to the light emission control module at the second stage and at the third stage, respectively. The light emission control module is configured to control the light emission control module to be turned off and turned on according to the first control signal and the second control signal, respectively.
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公开(公告)号：US11036959B2
公开(公告)日：2021-06-15
申请号：US16680461
申请日：2019-11-11
发明人： Limin Lin , Yongjin Teng , Yingzhang Qiu , Limei Shen , Huifang Zhou
IPC分类号： G06K9/00 , G02F1/1333 , G02F1/1335 , G02F1/1343 , H01L27/32 , H01L51/52 , H01L27/146
摘要： Embodiments of the present disclosure provide a display device and relate to the display technology field. The display device includes: a first base substrate, a plurality of pixels arranged in an array, a light source, configured to emit visible light, at least one photoluminescence unit, configured to convert the visible light into invisible light, and at least one light sensing element, configured to perform fingerprint recognition according to the invisible light reflected by a touch body. The display device implements the fingerprint recognition with the invisible light, and then the influence on the fingerprint recognition caused by the visible light from the external environment or backlight source and irradiated onto the light sensing element is avoided, thereby improving a fingerprint recognition precision.
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公开(公告)号：US11004385B1
公开(公告)日：2021-05-11
申请号：US17012388
申请日：2020-09-04
发明人： Jieliang Li , Yong Yuan , Wanming Huang
IPC分类号： G09G3/32
摘要： Disclosed are a display panel, a driving method and a display device. The display panel includes a strobe circuit, a pixel driving circuit and a light-emitting element; the pixel driving circuit includes a first initialization unit, a driving module, and a first light-emitting control unit; the strobe circuit is electrically connected to an initialization signal end; and the first initialization unit is electrically connected between the initialization signal end and an anode of the light-emitting element; in a write frame, the first initialization unit is configured to provide a first initialization voltage signal Vref1 to the anode of the light-emitting element under the control of a first scan signal; and in a hold frame, the first initialization unit is configured to provide a second initialization voltage signal Vref2 to the anode of the light-emitting element under the control of the first scan signal.
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公开(公告)号：US11003302B1
公开(公告)日：2021-05-11
申请号：US16825838
申请日：2020-03-20
发明人： Xiaoxiao Wu , Xiai Xu , Guozhao Chen
摘要： An array substrate and a display panel including the array substrate are provided. The array substrate has a display area and a fan-shaped wiring area. A first metal layer, a second metal layer, and a third metal layer are arranged in both the display area and the fan-shaped wiring area, and a fourth metal layer is arranged in the fan-shaped wiring area. In the display area, the first metal layer includes gate lines, the second metal layer includes data lines, and the third metal layer includes touch lines. Fingerprint identification signal lines are arranged in the fan-shaped wiring area and are electrically connected to fingerprint identification units arranged in the display area. The fourth metal layer arranged in the fan-shaped wiring area includes at least one of the fingerprint identification signal lines, which avoids too many fingerprint identification signal lines being arranged in the same layer with other signal lines.
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80.发明授权公开(公告)号：US10997916B2
公开(公告)日：2021-05-04
申请号：US16718834
申请日：2019-12-18
发明人： Yuheng Zhang , Yong Yuan , Jieliang Li , Wanming Huang , Yingteng Zhai
IPC分类号： G09G3/3233 , G09G3/32
摘要： Driving method for driving circuit, display panel, and display device are provided. The method includes: in a data writing stage, transmitting data signal voltage to a gate electrode of the driving transistor in response to a scan signal in a first scan signal line; in a light-emitting stage, turning on a driving path connecting the driving transistor to the light-emitting device, and making the driving transistor generate a driving current based on the voltage of the gate electrode in the driving transistor to drive the light-emitting device to emit light, in response to a light-emitting signal in a light-emitting signal line; and in a compensation stage, compensating the voltage of the gate electrode in the driving transistor by using a first power signal voltage. The light-emitting stage and the compensation stage overlap with each other, and a starting time of the compensation stage is after a starting time of the light-emitting stage.
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