专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3955239A1 PIXEL CIRCUIT, OPERATION METHOD AND DRIVING METHOD THEREOF, ARRAY SUBSTRATE, AND DISPLAY DEVICE 审中-实审
公开(公告)号：EP3955239A1
公开(公告)日：2022-02-16
申请号：EP21200002.0
申请日：2015-08-19
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co., Ltd.
发明人： XU, Pan , LI, Yongqian
IPC分类号： G09G3/3233
摘要： The present invention provides a pixel circuit, an operation method and driving method thereof, an array substrate, and a display device. The pixel circuit comprises: a reset unit (1), a data writing unit (2), a compensation unit (3), and a light-emitting unit (4). The compensation unit (3) is connected to the reset unit (1) and the data writing unit (2) as well as an output node (p), receives a power voltage signal, and is configured to, in respective phases, reset a potential of the output node (p), pull the potential of the output node (p) from the reset potential up to a first potential, pull the potential of the output node (p) from the first potential up to a second potential, and generate a light emission drive signal and output it to the output node (p).

2. 发明公开

EP3611720A1 SHIFT REGISTER UNIT, GATE DRIVING CIRCUIT, AND DRIVING METHOD 有权
公开(公告)号：EP3611720A1
公开(公告)日：2020-02-19
申请号：EP17902276.9
申请日：2017-09-15
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co., Ltd.
发明人： LI, Meng , LI, Yongqian , XU, Pan , ZHANG, Miao
IPC分类号： G09G3/36 , G11C19/28
摘要： A shift register unit, a gate driving circuit comprising the shift register unit, and a driving method applied to the shift register unit. The shift register unit comprises an input module (101), an output module (102), an output reset module (103), and a first capacitor (C1). The first capacitor (C1) is connected between a pull-up node (Q) and a second clock signal end (CK2) and is configured to maintain a high level of the pull-up node (Q) by using a second clock signal received by using the second clock signal end (CK2). The shift register unit further comprises a second capacitor (C2) connected between a pull-down node (QB) and a first voltage input end (V_R), and the second capacitor (C2) is configured to, during blanking after completion of scanning of a frame, pull down a level of the pull-down node (QB) by using a reverse bias voltage received by the first voltage input end (V_R). The shift register unit has a simple structure, a full swing output, low power consumption, and low noise. Threshold voltage drift of a thin film transistor connected to an output end (OUTPUT) is restored to maintain normal display of a liquid crystal panel.

3. 发明公开

EP3279889A1 PIXEL CIRCUIT AND DRIVE METHOD THEREFOR, ARRAY SUBSTRATE AND DISPLAY DEVICE 审中-公开
标题翻译：像素电路及其驱动方法，阵列基板和显示装置
公开(公告)号：EP3279889A1
公开(公告)日：2018-02-07
申请号：EP15837126.0
申请日：2015-08-19
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co. Ltd
发明人： XU, Pan , LI, Yongqian
IPC分类号： G09G3/32
CPC分类号： G09G3/3258 , G09G3/32 , G09G3/3233 , G09G3/325 , G09G3/3291 , G09G2300/043 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2300/0866 , G09G2310/0251 , G09G2310/08 , G09G2330/021
摘要： The present invention provides a pixel circuit, a driving method thereof, an array substrate, and a display device. The pixel circuit comprises: a reset unit, configured to output a reference signal; a data writing unit, configured to output a data signal; a compensation unit, which is connected to the reset unit and the data writing unit as well as an output node, receives a power voltage signal, and is configured to, in respective phases, reset the potential of the output node, pull the potential of the output node from the reset potential up to a first potential, pull the potential of the output node from the first potential up to a second potential, and generate a light emission drive signal and output it to the output node; and a light-emitting unit, which is connected to the output node and a cathode of a power supply and configured to emit light under the drive of the light emission drive signal in a light emission phase.
摘要翻译：本发明提供一种像素电路及其驱动方法，阵列基板和显示装置。像素电路包括：复位单元，用于输出参考信号; 数据写入单元，用于输出数据信号; 连接到复位单元和数据写入单元以及输出节点的补偿单元接收电源电压信号，并且被配置为在各个阶段中复位输出节点的电位，将电位输出节点从复位电位直到第一电位，将输出节点的电位从第一电位拉到第二电位，并产生发光驱动信号并将其输出到输出节点; 以及发光单元，其连接到电源的输出节点和阴极，并且被配置为在光发射阶段的发光驱动信号的驱动下发光。

4. 发明公开

EP3648167A1 DISPLAY SUBSTRATE AND MANUFACTURING METHOD THEREOF, DISPLAY PANEL AND DISPLAY DEVICE 审中-公开
公开(公告)号：EP3648167A1
公开(公告)日：2020-05-06
申请号：EP18824188.9
申请日：2018-06-22
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co., Ltd.
发明人： YUAN, Zhidong , XU, Pan , YUAN, Can , LI, Meng
IPC分类号： H01L27/32
摘要： Provided is a display substrate and a manufacturing method thereof, a display panel and a display device. The display substrate comprises a plurality of pixels, each of which comprises a plurality of sub-pixels capable of emitting light of different colors, wherein each of the sub-pixels comprising a light-emitting device, and at least one sub-pixel further comprises a color filter (111/211), the color filter (111/211) covers a light-emitting area of the light-emitting device of a part of the sub-pixels, and the color of the color filter of the sub-pixel is the same as the color of the light that the light-emitting device of the sub-pixel can emit.

5. 发明公开

EP3649635A1 OLED PIXEL CIRCUIT, AND DRIVING METHOD THEREOF, AND DISPLAY APPARATUS 有权
公开(公告)号：EP3649635A1
公开(公告)日：2020-05-13
申请号：EP17890839.8
申请日：2017-11-21
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co., Ltd.
发明人： YUAN, Can , LI, Yongqian , XU, Pan , YUAN, Zhidong , CAI, Zhenfei
IPC分类号： G09G3/32

6. 发明公开

EP4220727A1 DISPLAY SUBSTRATE AND DISPLAY DEVICE 审中-实审
公开(公告)号：EP4220727A1
公开(公告)日：2023-08-02
申请号：EP21938459.1
申请日：2021-04-30
申请人： BOE Technology Group Co., Ltd. , Hefei Boe Joint Technology Co., Ltd.
发明人： YUAN, Can , LI, Yongqian , YUAN, Zhidong , XU, Pan
IPC分类号： H01L27/32
摘要： A display substrate and a display device are provided. The display substrate includes: a plurality of pixel units arranged on a base substrate, wherein each pixel unit includes a plurality of sub-pixels, and each sub-pixel includes a light emitting element and a pixel driving circuit for driving the light emitting element; a semiconductor layer arranged on the base substrate; a first conductive layer arranged on a side of the semiconductor layer close to the base substrate; and a second conductive layer arranged on a side of the semiconductor layer away from the base substrate. The pixel driving circuit includes at least a driving transistor, a switching transistor and a sensing transistor; the switching transistor includes a first gate electrode located in the first conductive layer and a first active layer located in the semiconductor layer; the display substrate further includes a channel defining portion for defining a channel region of the switching transistor, the channel defining portion is located in the second conductive layer, and an orthographic projection of the channel defining portion on the base substrate at least partially overlaps an orthographic projection of the first active layer on the base substrate.

7. 发明公开

EP4199098A1 DISPLAY SUBSTRATE, DISPLAY PANEL, AND DISPLAY APPARATUS 审中-实审
公开(公告)号：EP4199098A1
公开(公告)日：2023-06-21
申请号：EP21946546.5
申请日：2021-06-25
申请人： BOE Technology Group Co., Ltd.
发明人： HAN, Ying , XU, Pan , LI, Wei , ZHANG, Yichi , ZHOU, Ying
IPC分类号： H01L27/32
摘要： An embodiment of the present disclosure provides a display substrate, including: a base substrate; a plurality of pixel circuits on the base substrate; and a plurality of pixels in an array and on a side of the pixel circuits away from the base substrate; the pixel includes a first sub-pixel, a second sub-pixel and a third sub-pixel; orthographic projections of the first sub-pixel, the second sub-pixel and the third sub-pixel on the base substrate do not overlap with each other; the first sub-pixel, the second sub-pixel and the third sub-pixel are electrically connected to the pixel circuits in a one-to-one correspondence manner; a first distance in a first direction exists between the first sub-pixel and the second sub-pixel, and a first via is arranged in the first distance; a second distance in the first direction exists between the first sub-pixel and the third sub-pixel, and a first via is arranged in the second distance; a third distance in the first direction exists between the second sub-pixel and the third sub-pixel.

8. 发明公开

EP4044169A1 DISPLAY SUBSTRATE AND DISPLAY DEVICE 审中-实审
公开(公告)号：EP4044169A1
公开(公告)日：2022-08-17
申请号：EP21846073.1
申请日：2021-06-08
申请人： BOE Technology Group Co., Ltd. , Hefei Boe Joint Technology Co., Ltd.
发明人： YUAN, Zhidong , LI, Yongqian , YUAN, Can , XU, Pan
IPC分类号： G09G3/3225 , G09G3/3266
摘要： Provided is a display substrate and a display device, and relates to the field of display technologies. In the display substrate, because at least two pixels disposed on the base substrate may share the same light emitting control circuit connected to the light emitting control lines, the number of light emitting control circuits required to be set in the display substrate may be reduced, or the number of light emitting control lines required to be set in the display substrate may be reduced. That is, the area, occupied by each pixel, of the base substrate is smaller. Therefore, both the gate drive circuit that provides the signal for the signal line connected to the pixel, and the drive signal connected to the gate drive circuit can be disposed on the base substrate. The display substrate provided in the present disclosure has a higher resolution.

9. 发明公开

EP4035209A1 ARRAY SUBSTRATE, DISPLAY APPARATUS, METHOD OF FABRICATING ARRAY SUBSTRATE, AND PIXEL DRIVING CIRCUIT 审中-公开
公开(公告)号：EP4035209A1
公开(公告)日：2022-08-03
申请号：EP19945452.1
申请日：2019-09-27
申请人： BOE Technology Group Co., Ltd. , Hefei Boe Joint Technology Co., Ltd.
发明人： YUAN, Can , LI, Yongqian , XU, Pan , YUAN, Zhidong , LI, Meng , FENG, Xuehuan , DING, Zehua
IPC分类号： H01L27/32

10. 发明公开

EP3699898A1 METHOD FOR DETECTING PIXEL CIRCUIT, METHOD FOR DRIVING DISPLAY PANEL, AND DISPLAY DEVICE 审中-实审
公开(公告)号：EP3699898A1
公开(公告)日：2020-08-26
申请号：EP18849456.1
申请日：2018-08-24
申请人： BOE Technology Group Co., Ltd.
发明人： SONG, Danna , LIN, Yi Cheng , XU, Pan , WU, Zhongyuan
IPC分类号： G09G3/32
摘要： A detection method of a pixel circuit, a driving method of a display panel, and a display device (10) are disclosed. The pixel circuit includes a driving transistor (T3); and the detection method of the pixel circuit includes: in the first charge cycle, applying a first data voltage (Vd1) to a gate electrode of the driving transistor (T3), acquiring a first sensing voltage (Vs1) at a first electrode of the driving transistor (T3) within the first duration after the application of the first data voltage (Vd1)and before the driving transistor is switched off, and determining whether the first sensing voltage (Vs1) is equal to reference sensing voltage (Vsr), in which the reference sensing voltage (Vsr) is acquired in the reference charge cycle; in the reference charge cycle, the reference sensing voltage (Vsr) is acquired at the first electrode of the driving transistor (T3) within the first duration after the application of the reference data voltage (Vd1) on the gate electrode of the driving transistor and before the driving transistor is switched off; and the first data voltage (Vd1) is equal to the reference data voltage (Vdr). Therefore, the present threshold voltage of the driving transistor T3 can be detected during boot-up (for instance, between adjacent display circles), and then the compensation effect and the luminance uniformity can be improved.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式