公开(公告)号：US20240038944A1

公开(公告)日：2024-02-01

申请号：US17898543

申请日：2022-08-30

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

Inventor： Daobing HU

IPC: H01L33/58 ,  H01L25/075

CPC classification number: H01L33/58 ,  H01L25/0753

Abstract: A LED display panel includes a substrate, a light source assembly disposed on the substrate, and a light filter layer disposed on the light source assembly. The light filter layer includes a light filter region. The light filter region includes a light-transmitting region and a non-light-transmitting region disposed outside the light-transmitting region. An incident angle of a light emitted by the light source assembly to the light-transmitting region is less than a total reflection critical angle of the light filter layer, and an incident angle of the light emitted by the light source assembly to the non-light-transmitting region is greater than or equal to the total reflection critical angle of the light filter layer. The total reflection critical angle is a critical angle at which the light exits from an upper surface of the light filter layer. A display device includes the LED display panel.

公开(公告)号：US20230016095A1

公开(公告)日：2023-01-19

申请号：US17436619

申请日：2021-07-28

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

Inventor： Daobing HU

IPC: H01L27/32

Abstract: Provided are a display backplane and a mobile terminal. The display backplane includes a plurality of light-emitting units and at least one detection circuit. Each of the light-emitting circuits includes a driving transistor. Each of the detection circuits is electrically connected to source electrodes of the driving transistors in at least two of the light-emitting units, at least for detecting voltages of the source electrodes of the driving transistors in the two corresponding light-emitting unit.

公开(公告)号：US20220320368A1

公开(公告)日：2022-10-06

申请号：US16973790

申请日：2020-11-30

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

Inventor： Daobing HU

IPC: H01L33/10 ,  H01L33/62 ,  G02F1/13357 ,  H01L33/00

Abstract: A mini-light emitting diode light board, a backlight module, and a preparation method thereof are provided. The mini-light emitting diode light board mainly comprises: a substrate, a first reflective layer, a circuit layer, and a plurality of mini-light emitting diodes laminated in sequence, wherein the plurality of mini-light emitting diodes are arranged on the circuit layer at intervals, and the mini-light emitting diode light board can be configured as a backlight source of the backlight module, which has advantages of improving light utilization rate and saving energy consumption.