公开(公告)号：US11244632B2

公开(公告)日：2022-02-08

申请号：US17026639

申请日：2020-09-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeeyeon Eom ,  Soonchan Kwon ,  Kyungjik Min ,  Yeongshin Jang ,  Jeonghoon Choi ,  Siwoo Kim ,  Jaeyoun Lee

IPC: G09G3/00 ,  G09G3/3275 ,  G09G3/3258

Abstract: A display driving integrated circuit includes a timing controller, a first source driver including a first inverting input, a first non-inverting input, and a first output, a second source driver including a second inverting input, a second non-inverting input, and a second output, and a switching circuit connected with the display panel through a first and second pads. Under control of the timing controller, the switching circuit performs one of a first switching operation of connecting the first inverting input and the first output with the first pad, connecting the second inverting input and the second output with the second pad, and applying first and second decoding voltages to the non-inverting inputs, respectively; and a second switching operation of applying a sensing reference voltage to the non-inverting inputs, and connecting the output terminals with an output node, and connecting the inverting inputs with one pad.

公开(公告)号：US12019828B2

公开(公告)日：2024-06-25

申请号：US18350578

申请日：2023-07-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Choonghoon Lee ,  Minsung Kim ,  Kyungjik Min ,  Seunghoon Baek ,  Kyeonggon Lee

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/04166 ,  G06F3/0446

Abstract: A touch controller, a touch screen device, and an operating method of the touch controller are provided. A touch controller, performing a touch sensing operation of sensing a touch of a touch panel in a touch sensing period, includes a first clock generator configured to generate a low frequency clock signal for calculating the touch sensing period, a second clock generator configured to generate a high frequency clock signal for performing the touch sensing operation, and a first calibration circuit configured to calibrate a frequency of the low frequency clock signal by using the high frequency clock signal.

公开(公告)号：US20240069668A1

公开(公告)日：2024-02-29

申请号：US18115926

申请日：2023-03-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungjik Min ,  MINSUNG KIM ,  JUNESOO KIM ,  SUNG-JIN PARK ,  SEUNG-HOON BAEK ,  KEYEONGGON LEE ,  CHOONGHOON LEE

IPC: G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/044

Abstract: A semiconductor device is disclosed. The semiconductor device includes a transceiver including an amplifier region configured to output a data signal to a source line connected to a pixel during a first period and receive a detection signal from a touch electrode during a second period different from the first period, and configured to generate the data signal based on input data; and a driving controller configured to generate the data based on input image data, outputting the data to the transceiver, and generate a touch signal based on the detection signal.