公开(公告)号：US12001095B2

公开(公告)日：2024-06-04

申请号：US17288664

申请日：2021-03-15

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

Inventor： Juncheng Xiao ,  Yan Li ,  Bin Zhao ,  Ji Li

IPC: G02F1/13357 ,  H01L33/00 ,  H01L33/62

CPC classification number: G02F1/133603 ,  G02F1/133605 ,  H01L33/005 ,  H01L33/62 ,  H01L2933/0066

Abstract: The application provides a backlight module, a manufacturing method thereof, and a liquid crystal display device. The backlight module includes a substrate, and a light-emitting chip and a reflective layer disposed on the substrate. Wherein, the reflective layer has a hollowed-out region, the light-emitting chip is electrically connected to the substrate in the hollowed-out region, and a projection of an edge of the hollowed-out region on the substrate is at least partially within a coverage of a projection of the light-emitting chip on the substrate to improve luminous efficiency.

公开(公告)号：US20240038195A1

公开(公告)日：2024-02-01

申请号：US17272244

申请日：2020-12-31

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

Inventor： Yan Li

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3688 ,  G09G3/3413 ,  G09G3/3677 ,  G09G2320/0626

Abstract: The present application provides a pixel driving circuit and a display device. The pixel driving circuit includes a scanning signal line and a data signal line. A pixel driving circuit unit includes at least two cascaded units, wherein the pixel driving circuit unit is configured to change a connection number of cascaded units that are connected to the data signal line and a light emitting diode, to adjust a brightness of the light emitting diode so as to effectively improve gray level of displayed picture and display quality.

公开(公告)号：US11854464B2

公开(公告)日：2023-12-26

申请号：US16973447

申请日：2020-11-27

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

Inventor： Yan Li

IPC: G09G3/32 ,  G09G3/34

CPC classification number: G09G3/32 ,  G09G3/3426 ,  G09G2320/0233 ,  G09G2330/021

Abstract: The present disclosure provides a display device and a light-emitting panel. The light-emitting panel includes a plurality of minimal repeating units, the minimal repeating units include a driving chip and a light emitting device, and the driving chip and the light emitting device are electrically connected, wherein the driving chip includes a first driving submodule, a second driving submodule, and a capacitor, and the light emitting device includes a first light emitting device and a second light emitting device. The first driving submodule is electrically connected to a first end of the first light emitting device, and the second driving submodule is electrically connected to a first end of the second light emitting device.