公开(公告)号：US20240047464A1

公开(公告)日：2024-02-08

申请号：US17623478

申请日：2021-12-22

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Linfeng Liu

IPC: H01L27/12 ,  H01L27/15

CPC classification number: H01L27/1218 ,  H01L27/15

Abstract: The present application discloses a display panel and a manufacturing method thereof. The display panel comprises: a first substrate and a second substrate, and the first substrate is provided with a driving circuit; the second substrate is arranged corresponding to the first substrate, and an LED is provided on a side of the second substrate facing the first substrate, and the driving circuit is employed to drive the LED to emit light. The display panel provided by the present application can solve the abnormal display problem caused by the voltage drop when the power supply passes through the thin film transistor in the driving circuit.

公开(公告)号：US11996028B2

公开(公告)日：2024-05-28

申请号：US17597948

申请日：2022-01-10

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Linfeng Liu

IPC: G09G3/20 ,  G09G3/32 ,  G09G3/3225

CPC classification number: G09G3/2081 ,  G09G3/2011 ,  G09G3/2022 ,  G09G3/32 ,  G09G3/3225 ,  G09G2300/0852 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/08

Abstract: A pixel circuit and a display panel are provided in the present application. The pixel circuit includes a driving module, a pulse amplitude modulation module, a pulse width modulation module, an internal compensation module, and an electrical potential maintaining module. High grayscale display is controlled by the pulse amplitude modulation module in a pulse amplitude modulation manner, low grayscale display is controlled by the pulse width modulation module in a pulse width modulation manner, and the internal compensation module performs internal compensation on a first terminal of the driving module, to realize an internal compensation and hybrid driving of the pixel circuit.

公开(公告)号：US20240038128A1

公开(公告)日：2024-02-01

申请号：US17597948

申请日：2022-01-10

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Linfeng Liu

IPC: G09G3/20 ,  G09G3/32 ,  G09G3/3225

CPC classification number: G09G3/2081 ,  G09G3/2011 ,  G09G3/2022 ,  G09G3/32 ,  G09G3/3225 ,  G09G2300/0852 ,  G09G2310/027 ,  G09G2310/0262 ,  G09G2310/08

Abstract: A pixel circuit and a display panel are provided in the present application. The pixel circuit includes a driving module, a pulse amplitude modulation module, a pulse width modulation module, an internal compensation module, and an electrical potential maintaining module. High grayscale display is controlled by the pulse amplitude modulation module in a pulse amplitude modulation manner, low grayscale display is controlled by the pulse width modulation module in a pulse width modulation manner, and the internal compensation module performs internal compensation on a first terminal of the driving module, to realize an internal compensation and hybrid driving of the pixel circuit.