公开(公告)号：US20200327852A1

公开(公告)日：2020-10-15

申请号：US16914490

申请日：2020-06-29

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Qitai JI ,  Qingjun LAI ,  Xiao LI

IPC: G09G3/32

Abstract: Provided are a pixel driving circuit, a driving method, a display panel and a display device. The pixel driving circuit includes: a data writing device, a voltage stabilizing storage device, a driving device and a light-emitting component; where the data writing device is configured for transmitting a data signal voltage; the driving device is configured for generating a driving current according to the data signal voltage transmitted by the data writing device; the voltage stabilizing storage device is configured for storing the data signal voltage transmitted to the driving device; the light-emitting component is configured for emitting light in response to the driving current generated by the driving device; where the voltage stabilizing storage device includes at least two voltage stabilizing storage sub-devices connected in parallel, each voltage stabilizing storage sub-device includes a capacitor, at least one of the voltage stabilizing storage sub-devices includes a switch device.

公开(公告)号：US20180190742A1

公开(公告)日：2018-07-05

申请号：US15907842

申请日：2018-02-28

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Shui HE ,  Yingteng ZHAI ,  Yongxiang LIN ,  Hong LIN ,  Yong YUAN ,  Zaiwen ZHU ,  Qitai JI

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3248 ,  H01L27/3276 ,  H01L51/5206 ,  H01L2251/55

Abstract: An organic light-emitting display panel, a display device, and an organic light-emitting display motherboard are provided. The organic light-emitting display panel includes a base substrate, a metal wire, a first insulation layer, and a conductive portion. The metal wire has an upper surface opposing to the base substrate. A material of the metal wire includes a first metal. The first insulation layer covers the upper surface of the metal wire and includes at least one hollow portion penetrating through the first insulation layer and exposing a portion of the upper surface of the metal wire. The conductive portion is electrically connected to the metal wire, and is not overlapped with the at least one hollow portion. A work function of a material of the conductive portion is G1, a work function of metal silver is G2, a work function of the first metal is G3, and G1>G2>G3.

公开(公告)号：US20180150175A1

公开(公告)日：2018-05-31

申请号：US15880603

申请日：2018-01-26

Applicant: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.

Inventor： Jieliang LI ,  Yong YUAN ,  Zaiwen ZHU ,  Qitai JI ,  Qijun YAO ,  Feng LU

IPC: G06F3/041 ,  G06F3/045

CPC classification number: G06F3/0414 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/045 ,  G06F2203/04103 ,  G06F2203/04112

Abstract: Provided are a touch display panel and a touch display device. The touch display panel includes at least one semiconductor pressure-sensing touch device, and the semiconductor pressure-sensing touch device includes a first pressure-sensitive resistor, a second pressure-sensitive resistor, a third pressure-sensitive resistor and a fourth pressure-sensitive resistor. A first end of the first pressure-sensitive resistor and a first end of the second pressure-sensitive resistor are connected to a first power inputting terminal, a second end of the first pressure-sensitive resistor and a first end of the fourth pressure-sensitive resistor are connected to a first sense signal measuring terminal, a second end of the fourth pressure-sensitive resistor and a second end of the third pressure-sensitive resistor are connected to a second power inputting terminal.