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1. 发明授权

US10535303B2 Organic light emitting display panel, driving method thereof and organic light emitting display apparatus 有权
公开(公告)号：US10535303B2
公开(公告)日：2020-01-14
申请号：US16107971
申请日：2018-08-21
申请人： Shanghai Tianma AM-OLED Co., Ltd.
发明人： Dongxu Xiang , Yue Li , Renyuan Zhu , Tong Wu , Dong Qian , Zeyuan Chen , Gang Liu
IPC分类号： G09G3/32 , G09G3/3233 , G09G3/3258
摘要： The present application discloses an organic light emitting display panel, a driving method thereof and an organic light emitting display apparatus. The organic light emitting display panel comprises: a pixel array, comprising pixel regions in M rows and N columns; a plurality of pixel driving circuits each comprising a light emitting diode and a driving transistor for driving the light emitting diode, the light emitting diode being arranged in one of the pixel regions; and a plurality of pixel compensation circuits, each configured to provide a compensated light emitting control signal for a gate of the driving transistor to correct brightness of the light emitting diode in one of the plurality of pixel driving circuits. According to the present disclosure, the final light emitting current may be unrelated to the threshold voltage of the driving transistor, the carrier mobility and aging of the light emitting diode.

2. 发明授权

US10276254B2 Shift register unit, organic light-emitting display panel and driving method 有权
公开(公告)号：US10276254B2
公开(公告)日：2019-04-30
申请号：US15598217
申请日：2017-05-17
申请人： SHANGHAI TIANMA AM-OLED CO., LTD. , TIANMA MICRO-ELECTRONICS CO., LTD.
发明人： Dongxu Xiang , Yue Li , Dong Qian , Gang Liu
IPC分类号： G11C19/00 , G11C19/28 , G09G3/3266 , G09G3/36
摘要： The present disclosure describes a shift register unit, an organic light-emitting display panel and a driving method. The shift register unit comprises a node potential controller and an output unit. The node potential controller comprises a first output end and a second output end. The output unit is configured to output, based on a first control signal from the first output end and a second control signal from the second output end, a first level signal or a second level signal. According to the solutions provided by the application, the potential of each node in the shift register unit is stable and controllable, and contributed to the avoidance of output logic execution problem in the shift register unit caused by unstable node potential when each control signal level of the shift register unit jumps.

3. 发明授权

US10147353B2 Organic light emitting display panel and pixel compensation method 有权
公开(公告)号：US10147353B2
公开(公告)日：2018-12-04
申请号：US15592065
申请日：2017-05-10
申请人： SHANGHAI TIANMA AM-OLED CO., LTD.
发明人： Dongxu Xiang , Yue Li , Dong Qian , Zeyuan Chen , Gang Liu
IPC分类号： G09G3/3233 , G09G3/3291
摘要： An organic light emitting display panel and a pixel compensation method are provided. The organic light emitting display panel includes: a pixel array including pixel regions divided into M rows and N columns; a plurality of pixel driving circuits, each includes a light emitting diode and a driving transistor for driving the light emitting diode, and the light emitting diodes are located in the pixel regions; and a plurality of pixel compensation circuits configured to sample an anode voltage of the light emitting diode are in at least one of the pixel driving circuits. A light emitting current flows through the light emitting diode, and generates a compensation signal based on the anode voltage and the light emitting current.

4. 发明授权

US10101833B2 Display panel and manufacturing method therefor, and display device 有权
公开(公告)号：US10101833B2
公开(公告)日：2018-10-16
申请号：US14668783
申请日：2015-03-25
申请人： Shanghai Tianma AM-OLED Co., Ltd. , Tianma Micro-Electronics Co., Ltd.
发明人： Zhiyong Xiong , Yongcai Shen , Dong Qian
IPC分类号： G06F3/041 , H05B33/10 , G06F3/044
摘要： The present disclosure provides a display panel and a manufacturing method therefor, and a display device, and the display panel includes a first substrate and a second substrate disposed opposite to the first substrate; an organic light emitting layer disposed between the first substrate and the second substrate, wherein the organic light emitting layer includes a planar cathode layer; a planar cathode protection layer disposed on the cathode layer; and a first touch layer disposed on the cathode protection layer. With the technical solutions according to the present disclosure, the first touch layer is formed by evaporation processes just like the organic light emitting layer, so that the manufacture steps of the display panel are reduced as compared to forming the first touch layer by a photo etching process. Further, if the evaporation mask instead of the photo etching masks is used during the manufacture, the production cost is reduced.

5. 发明申请

US20170229056A1 PIXEL CIRCUIT, DRIVING METHOD AND DISPLAY PANEL 审中-公开
公开(公告)号：US20170229056A1
公开(公告)日：2017-08-10
申请号：US15181557
申请日：2016-06-14
申请人： SHANGHAI TIANMA AM-OLED CO., LTD. , TIANMA MICRO-ELECTRONICS CO., LTD.
发明人： Qi Li , Dong Qian , Duzen Peng
IPC分类号： G09G3/20
CPC分类号： G09G3/2092 , G09G3/3233 , G09G2300/0426 , G09G2300/0443 , G09G2300/0804 , G09G2300/0876 , G09G2310/021 , G09G2310/0251 , G09G2320/045 , G09G2330/02
摘要： A pixel circuit, a driving method and a display panel are provided by the disclosure. The pixel circuit includes: a sharing unit and N light-emitting control units. An input terminal of each of the light-emitting control units is electrically connected to an output terminal of the sharing unit; an output terminal of each of the light-emitting control units is electrically connected to a light-emitting element, a control terminal of each of the light-emitting control units is electrically connected a control signal line. The sharing unit is configured to drive, through each of the light-emitting control units. The light-emitting element electrically connected to the light-emitting control unit. N is positive integer greater than or equal to 2. The pixel circuit, the driving method and the display panel of the disclosure may solve the problem of the non-uniform display due to the drift of the threshold voltage of the driving transistor.

6. 发明授权

US09584127B2 Inverter, driving circuit and display panel 有权
标题翻译：变频器，驱动电路和显示面板
公开(公告)号：US09584127B2
公开(公告)日：2017-02-28
申请号：US14586810
申请日：2014-12-30
申请人： Shanghai Tianma AM-OLED Co., Ltd. , Tianma Micro-Electronics Co., Ltd.
发明人： Dong Qian , Yue Li , Tong Zhang , Zhiliang Wang , Liyuan Luo
IPC分类号： H03K19/0944 , H03K19/003 , H02M1/00 , G09G3/32
CPC分类号： H03K19/0944 , G09G3/3266 , G09G2310/0291 , H02M2001/0054 , H03K19/00315
摘要： An inverter includes first, second, third, fourth, and fifth transistors, and first and second capacitors. The transistors and capacitors are connected in such way that the reverse conduction of the second transistor is prevented through controlling the gate electrode of the second transistor and maintaining the electrical potential at the gate electrode of the fifth transistor by the second capacitor. The electrical potential at the gate electrode of the fifth transistor is maintained stable when a first clock signal changes from high to low (when the first to fifth transistors are NMOS transistors) or from low to high (when the first to fifth transistors are PMOS transistors), so that the output signal of the inverter may not be affected by a change of the first clock signal, thus enabling the inverter to generate a stable output signal and a display panel comprising the inverter to obtain a better display effect.
摘要翻译：逆变器包括第一，第二，第三，第四和第五晶体管以及第一和第二电容器。晶体管和电容器以这样的方式被连接，即通过控制第二晶体管的栅电极并通过第二电容器维持第五晶体管的栅电极处的电位来防止第二晶体管的反向导通。当第一时钟信号从高变为低时（当第一至第五晶体管为NMOS晶体管时）或从低到高（当第一至第五晶体管为PMOS晶体管时，第五晶体管的栅电极处的电势保持稳定），使得逆变器的输出信号可能不受第一时钟信号的变化的影响，从而使得逆变器能够产生稳定的输出信号，以及包括逆变器的显示面板以获得更好的显示效果。

7. 发明申请

US20160275866A1 PIXEL CIRCUIT, ORGANIC ELECTROLUMINESCE DISPLAY PANEL AND DISPLAY DEVICE 有权
公开(公告)号：US20160275866A1
公开(公告)日：2016-09-22
申请号：US15167863
申请日：2016-05-27
申请人： Shanghai Tianma AM-OLED Co., Ltd. , TIANMA MICRO-ELECTRONICS CO., LTD.
发明人： Gang Liu , Chen Liu , Dan Chen , Dong Qian
IPC分类号： G09G3/3258
CPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3291 , G09G2230/00 , G09G2300/0439 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2310/0262 , G09G2310/062 , G09G2310/08 , G09G2320/0233 , G09G2320/045
摘要： A pixel circuit, an organic electroluminescent display panel and a display device are provided. The pixel circuit includes a light emitting element, a first capacitor, a reset control module, a drive control module, a compensation control module, and a light emission control module. In a reset phase, the reset control module writes a reset signal at a reset signal end into a second end of the first capacitor. In a compensation phase, the reset control module writes a data signal at a data signal end into a first end of the first capacitor, and the drive control module charges the first capacitor through the compensation control module. In a light emission phase, both the light emission control module and the first capacitor enable the drive control module to drive the light emitting element with a stable current for emission of light.

8. 发明授权

US09437325B2 TFT array substrate, display panel and display device 有权
标题翻译： TFT阵列基板，显示面板和显示装置
公开(公告)号：US09437325B2
公开(公告)日：2016-09-06
申请号：US14466926
申请日：2014-08-22
申请人： Shanghai Tianma AM-OLED Co., Ltd. , Tianma Micro-Electronics Co., Ltd.
发明人： Dong Qian
IPC分类号： G11C19/28 , G09G3/36 , G11C27/04 , H01L27/12 , G09G3/20
CPC分类号： G11C27/04 , G09G3/2092 , G09G3/3677 , G09G2300/0417 , G09G2300/0426 , G09G2300/0465 , G09G2310/0224 , G09G2310/0286 , G09G2310/061 , G09G2330/021 , G11C19/184 , G11C19/28 , H01L27/124 , H01L27/1255
摘要： A TFT array substrate is disclosed. The TFT array substrate includes a plurality of gate lines, and a gate driving circuit connected to the gate lines. The gate driving circuit includes a plurality of stages of shift registers, where odd-numbered stages of shift registers are cascaded-connected to each other, even-numbered stages of shift registers are cascaded-connected to each other, and the odd-numbered stages of shift registers and the even-numbered stages of shift registers are disposed at opposite ends of the gate lines.
摘要翻译：公开了TFT阵列基板。 TFT阵列基板包括多个栅极线，以及连接到栅极线的栅极驱动电路。栅极驱动电路包括多级移位寄存器，其中奇数级的移位寄存器彼此级联连接，偶数级的移位寄存器彼此级联连接，奇数级的移位寄存器和偶数级的移位寄存器设置在栅极线的相对端。

9. 发明授权

US09412300B2 Pixel compensating circuit and method of organic light emitting display 有权
标题翻译：有机发光显示器的像素补偿电路及方法
公开(公告)号：US09412300B2
公开(公告)日：2016-08-09
申请号：US14479572
申请日：2014-09-08
申请人： Shanghai Tianma AM-OLED Co., Ltd. , Tianma Micro-Electronics Co., Ltd.
发明人： Zhiliang Wang , Dong Qian , Liyuan Luo
IPC分类号： G09G3/30 , G09G3/32
CPC分类号： G09G3/3241 , G09G3/3266 , G09G3/3283 , G09G2300/0814 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2300/0866 , G09G2310/08 , G09G2320/0223 , G09G2320/0233 , G09G2320/043 , G09G2320/045
摘要： A pixel compensating circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a driving transistor, a first capacitor, and an organic light emitting diode element. The first transistor controls transmission of a data signal to a first electrode plate of the first capacitor. The second transistor controls transmission of a reference voltage signal to the first electrode plate of the first capacitor. The driving transistor determines an amount of a driving current. The third transistor controls connection and disconnection between the gate electrode and a drain electrode of the driving transistor. The fourth transistor transmits the driving current from the driving transistor to the organic light emitting diode element. The fifth transistor controls transmission of a supply voltage to the source electrode of the driving transistor; and the organic light emitting diode element emits light in response to the driving current.
摘要翻译：像素补偿电路包括第一晶体管，第二晶体管，第三晶体管，第四晶体管，第五晶体管，驱动晶体管，第一电容器以及有机发光二极管元件。第一晶体管控制数据信号传输到第一电容器的第一电极板。第二晶体管将参考电压信号的传输控制到第一电容器的第一电极板。驱动晶体管确定驱动电流的量。第三晶体管控制驱动晶体管的栅电极和漏电极之间的连接和断开。第四晶体管将驱动电流从驱动晶体管传输到有机发光二极管元件。第五晶体管控制向驱动晶体管的源电极的电源电压的传输; 并且有机发光二极管元件响应于驱动电流而发光。

10. 发明申请

US20160189796A1 SHIFT REGISTER, DRIVING METHOD AND GATE DRIVING CIRCUIT 有权
标题翻译：移位寄存器，驱动方法和门驱动电路
公开(公告)号：US20160189796A1
公开(公告)日：2016-06-30
申请号：US14860334
申请日：2015-09-21
申请人： Shanghai Tianma AM-OLED Co., Ltd. , Tianma Micro-Electronics Co., Ltd.
发明人： Tong Wu , Dong Qian , Tong Zhang
IPC分类号： G11C19/28 , G09G5/00
CPC分类号： G11C19/28 , G09G3/20 , G09G5/003 , G09G2300/0426 , G09G2300/0871 , G09G2310/0267 , G09G2310/0286 , G09G2310/0289 , G09G2310/08
摘要： Embodiments of the disclosure provide a shift register, a driving method and a gate driving circuit. In an embodiment, the shift register includes: a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor, a first storage capacitor and a second storage capacitor. The shift register is driven by the cooperation of the respective transistors. In the case that the shift register is applied in the gate driving circuit to implement a line-by-line scanning, shift registers corresponding to two adjacent pixel rows are cascaded directly and no inverters are provided following the shift registers corresponding to the respective pixel rows, thereby decreasing the number of transistors in the gate driving circuit, reducing the layout area of the gate driving circuit, and being advantageous for narrowing the border.
摘要翻译：本公开的实施例提供了移位寄存器，驱动方法和栅极驱动电路。在一个实施例中，移位寄存器包括：第一晶体管，第二晶体管，第三晶体管，第四晶体管，第五晶体管，第六晶体管，第七晶体管，第八晶体管，第九晶体管，第一存储电容器和第二存储电容器。移位寄存器由相应晶体管的协作驱动。在栅极驱动电路中施加移位寄存器以实现逐行扫描的情况下，对应于两个相邻像素行的移位寄存器直接级联，并且在与各个像素行对应的移位寄存器之后不设置反相器从而减小栅极驱动电路中的晶体管数量，减小栅极驱动电路的布局面积，有利于缩小边界。

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