公开(公告)号：US20250037680A1

公开(公告)日：2025-01-30

申请号：US18715881

申请日：2022-12-02

Applicant: LX SEMICON CO., LTD.

Inventor： Do Seok KIM ,  Yong Hwan MUN ,  Myung Yu KIM ,  Hyun Pyo CHO

IPC: G09G5/00

Abstract: A display driving device includes a main communication circuit configured to receive image data and first control data in an active period through a main communication line and to receive second control data in a blank period; and a driving circuit configured to drive pixels of a display panel according to the image data and to determine a power saving operation of an output circuit for driving the pixels according to a power saving control value included in the second control data, thereby reducing the amount of power consumption in data communication and minimizing the possibility of a malfunction of erroneously entering a power saving mode due to a communication error.

公开(公告)号：US20250029575A1

公开(公告)日：2025-01-23

申请号：US18715553

申请日：2022-12-02

Applicant: LX SEMICON CO., LTD.

Inventor： Do Seok KIM ,  Yong Hwan MUN ,  Myung Yu KIM ,  Hyun Pyo CHO

IPC: G09G5/00

Abstract: A display driving device includes a low-speed communication circuit configured to receive configuration data at a first data rate in a first mode; a high-speed communication circuit configured to train a communication clock signal for communication at a second data rate in a second mode, to receive image data and first control data using the communication clock signal in a third mode, and to receive second control data using the communication clock signal in a fourth mode; a control circuit configured to switch the first mode to the second mode upon completion of the first mode, to switch the second mode to the third mode upon completion of the second mode, to switch the third mode to the second mode when an abnormal state is detected in the third mode, and to switch the fourth mode to the first mode when an abnormal state is detected in the fourth mode; and a circuit configured to control pixels of a display panel to be driven according to the image data, thereby easily managing operation modes of a data driving device and a data processing device and minimizing a recovery time when an error occurs.

公开(公告)号：US20240013749A1

公开(公告)日：2024-01-11

申请号：US18232788

申请日：2023-08-10

Applicant: LX Semicon Co., Ltd.

Inventor： Do Seok KIM ,  Yong Hwan MUN ,  Myung Yu KIM ,  Hyun Pyo CHO

IPC: G09G5/00

CPC classification number: G09G5/008 ,  G09G2320/08 ,  G09G2370/04

Abstract: The present disclosure relates to a technology for driving a display panel, wherein setting data for setting an environment of a high-speed communication is transmitted through a low-speed communication before performing a high-speed communication for image data, thereby reducing errors in the high-speed communication and increasing the communication speed.

公开(公告)号：US20250037638A1

公开(公告)日：2025-01-30

申请号：US18715711

申请日：2022-12-02

Applicant: LX SEMICON CO., LTD.

Inventor： Do Seok KIM ,  Yong Hwan MUN ,  Myung Yu KIM ,  Hyun Pyo CHO

IPC: G09G3/20 ,  G06F3/14 ,  G09G3/00 ,  H04L1/00

Abstract: A display driving device includes two or more integrated circuits configured to receive image data from a device through a main communication line, wherein the two or more integrated circuits are connected in a cascade form for subsidiary communication, a first integrated circuit disposed at an end of the cascade transmits a first subsidiary communication signal to the device through the subsidiary communication, and a second integrated circuit disposed at a beginning of the cascade receives a feedback signal for the first subsidiary communication signal from the device, thereby providing a technique of simultaneously initializing all data driving devices even if an error occurs in one of a plurality of data driving devices and easily synchronizing operation modes of the data driving devices and a data processing device.

公开(公告)号：US20250037628A1

公开(公告)日：2025-01-30

申请号：US18715849

申请日：2022-12-02

Applicant: LX SEMICON CO., LTD.

Inventor： Do Seok KIM ,  Yong Hwan MUN ,  Myung Yu KIM ,  Hyun Pyo CHO

IPC: G09G3/00 ,  G09G3/20

Abstract: A display driving device includes a first communication circuit which receives first data at a first data rate via a communication line and determines whether the first data has an error according to a first rule; a second communication circuit which receives second data via the communication line at a second data rate which is higher than the first data rate, and which determines whether the second data has an error according to a second rule which is different from the first rule; and a circuit that controls pixels on a display panel to be driven in accordance with image data included in the second data. driving a display panel, thereby improving the accuracy and efficiency of data validity verification by verifying data efficiency in data communication in different ways depending on the type and operation of the sent/received data.

公开(公告)号：US20220383834A1

公开(公告)日：2022-12-01

申请号：US17751380

申请日：2022-05-23

Applicant: LX Semicon Co., Ltd.

Inventor： Do Seok KIM ,  Yong Hwan MUN ,  Myung Yu KIM ,  Hyun Pyo CHO

IPC: G09G5/00

Abstract: The present disclosure relates to a technology for driving a display panel, wherein setting data for setting an environment of a high-speed communication is transmitted through a low-speed communication before performing a high-speed communication for image data, thereby reducing errors in the high-speed communication and increasing the communication speed.