公开(公告)号：US20210328424A1

公开(公告)日：2021-10-21

申请号：US16621709

申请日：2019-07-04

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

Inventor： Yujia LIU ,  Xianming ZHANG

IPC: H02H9/02 ,  G02F1/1362

Abstract: The present disclosure proposes an overcurrent protective circuit and a display panel. The overcurrent protective circuit includes a power supply circuit, a logic algorithm circuit, and an overcurrent protective circuit. The logic algorithm circuit is additionally arranged in the overcurrent protective circuit. The logic algorithm circuit set different threshold currents of overcurrent protection for the display panel according on different driving frequencies. The overcurrent protective circuit adjusts the protective components inside the overcurrent protective circuit in accordance with the set threshold currents. Therefore, the display panel is protected by the overcurrent protective circuit at different frequencies.

公开(公告)号：US20210335205A1

公开(公告)日：2021-10-28

申请号：US16627379

申请日：2019-12-11

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

Inventor： Wenfang LI ,  Dan CAO ,  Xianming ZHANG

IPC: G09G3/20

Abstract: The present application provides a display panel driving system and a display device. The display panel driving system includes a memory, a timing control integrated circuit (IC), and a panel driving IC. The memory is configured to store driving data. The timing control IC is configured to download the driving data from the memory during a startup phase, and send the driving data to the panel driving IC. Therefore, multiple ICs can share a single memory, which reduces costs.

公开(公告)号：US20240046849A1

公开(公告)日：2024-02-08

申请号：US17266662

申请日：2020-12-30

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

Inventor： Wenfang LI ,  Xianming ZHANG

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G09G3/2096 ,  G09G3/2007 ,  G09G3/36 ,  G09G2320/0673

Abstract: A data signal regulating circuit and a display device are disclosed. The data signal regulating circuit is applied to a display panel including a plurality of source driver groups, a feedback unit and an regulating unit. Any two adjacent ones of the source driver groups are provided with a data signal regulating circuit. The feedback unit is used to output a feedback signal to the regulating unit according to data signal difference between two adjacent source driver groups. The regulating unit is used to regulate the data signals output from the corresponding source driver groups according to the feedback signal.

公开(公告)号：US20210152177A1

公开(公告)日：2021-05-20

申请号：US16627301

申请日：2019-11-27

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

Inventor： Wenfang LI ,  Xianming ZHANG

IPC: H03K19/0185 ,  G09G3/20

Abstract: The present disclosure discloses a level shifter circuit and a display panel. The level shifter circuit includes a level shifter module, a compare module connected to the level shifter module. The level shifter module includes a level shifter unit, a control unit connected to the level shifter unit. The level shifter unit receives a first voltage signal and a second voltage signal and generates a level shifter result signal according to the first voltage signal and the second voltage signal. The compare module is configured to compare a voltage corresponding to the level shifter result signal with a reference voltage at a predetermined time and generate a comparison result. The control unit stops the shifter unit when the voltage corresponding to the level shifter result signal is less than the reference voltage. The present disclosure prevents the display panel from being damaged by short circuiting.