公开(公告)号：US20250124863A1

公开(公告)日：2025-04-17

申请号：US18601078

申请日：2024-03-11

Applicant: Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma Micro-Electronics Co., Ltd. Shanghai Branch

Inventor： Di ZHANG

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: Display panel and display device are provided. The display panel includes a base substrate; a plurality of pixel circuits, on a side of the base substrate; and light-emitting elements electrically connected to the plurality of pixel circuits. A pixel circuit of the plurality of pixel circuits includes a driving transistor; a first transistor, connected in series between the driving transistor and the data line, transmitting a data signal to the driving transistor in response to a first scanning signal; a second transistor, electrically connected between the driving transistor and a light-emitting element of the light-emitting elements, and transmitting a driving current to the light-emitting element of the light-emitting elements in response to a light-emitting control signal; a first capacitor; and the first node, on a side of the second plate of the first capacitor away from the base substrate.

公开(公告)号：US20230215350A1

公开(公告)日：2023-07-06

申请号：US17687594

申请日：2022-03-04

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

Inventor： Jiao SHI ,  Di ZHANG

IPC: G09G3/3225 ,  H01L27/32

CPC classification number: G09G3/3225 ,  H01L27/3262 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2320/0214 ,  G09G2320/0233 ,  H01L29/78696

Abstract: Display panel and display device are provided. The display panel includes a plurality of subpixels. A subpixel of the plurality of subpixels includes a pixel circuit and a light emitting element that are electrically connected. The pixel circuit includes a first transistor. A first electrode of the first transistor is connected to a first reference voltage signal terminal. A second electrode of the first transistor is electrically connected to an anode of the light emitting element. In a light emitting retention stage of the subpixel of the plurality of subpixels, the first reference voltage signal terminal is connected to a negative potential signal or a ground potential signal. The plurality of subpixels includes at least a first subpixel and a second subpixel, and a color of the first subpixel is different from a color of the second subpixel.

公开(公告)号：US20240177667A1

公开(公告)日：2024-05-30

申请号：US18109418

申请日：2023-02-14

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

Inventor： Di ZHANG ,  Dongxu XIANG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0294 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0626

Abstract: The present disclosure discloses a display panel, a driving circuit and a display device. The display panel includes a pixel circuit and a light-emitting element. A data writing cycle of the pixel circuit includes a data writing phase and m holding phases. In the data writing phase, the first scan signal includes at least one first valid pulse. A light emission control signal includes one second valid pulse in the data writing phase and in each holding phase. The working modes of the display panel includes a first mode. In the first mode, the interval between the start time of the first valid pulse in the (i+1)-th data writing cycle and the end time of the last second valid pulse in the i-th data writing cycle is t1, and in the data writing phase, the duration of the light emission control signal being an invalid pulse is t2,







t
⁢
1


t
⁢
2


≥

1
⁢
%


,

m
≥
1

,

i
≥
1

,




and m and i are integers.