公开(公告)号：US20170242529A1

公开(公告)日：2017-08-24

申请号：US15426228

申请日：2017-02-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Haewoon PARK ,  Seung-Hoon BAEK ,  Jaehun JEONG ,  Hyeokchul KWON

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch display driving integrated circuit (IC) includes a touch driver IC configured to be connected to touch electrodes through touch sensing lines and provide a sensing signal to first touch sensing lines among the touch sensing lines in a touch period. The touch driver IC is further configured to apply a common voltage to second touch sensing lines among the touch sensing lines and apply a voltage different from the common voltage to third touch sensing lines different from the second touch sensing lines in a display period.

公开(公告)号：US20250037634A1

公开(公告)日：2025-01-30

申请号：US18917331

申请日：2024-10-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minsung KIM ,  Seung-Hoon BAEK

IPC: G09G3/20

Abstract: A driving device of a display panel includes a reference voltage generator, a capacitor circuit, and a gamma voltage generator. The reference voltage generator is configured to generate a maximum gamma voltage and a minimum gamma voltage. The capacitor circuit is configured to, response to receiving the first driving voltage, charge a first charge based on a voltage difference between a first driving voltage and the maximum gamma voltage and charge a second charge based on a voltage difference between the first driving voltage and the minimum gamma voltage. The capacitor circuit is configured to, in response to receiving a second driving voltage, output a first gamma reference voltage and a second gamma reference voltage. The gamma voltage generator is configured to generate a plurality of gamma voltages based on the first gamma reference voltage and the second gamma reference voltage.

公开(公告)号：US20250006123A1

公开(公告)日：2025-01-02

申请号：US18404179

申请日：2024-01-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Choonghoon LEE ,  Sung-Jin PARK ,  Sangwoo BAE ,  Seung-Hoon BAEK

IPC: G09G3/3233

Abstract: A display device includes a pixel array that includes a pixel including a light emitting diode and a first transistor that includes a source terminal to which a pixel drive voltage is applied and a gate terminal to which a data signal is applied, and outputs drive current generated based on the voltage difference between the gate terminal and the source terminal, to the light emitting diode, and a display driver IC that generates the data signal based on the pixel drive voltage.

公开(公告)号：US20240021129A1

公开(公告)日：2024-01-18

申请号：US18061588

申请日：2022-12-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minsung KIM ,  Seung-Hoon BAEK

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2320/0673 ,  G09G2310/061 ,  G09G2330/028 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2320/0247

Abstract: A driving device of a display panel includes a reference voltage generator, a capacitor circuit, and a gamma voltage generator. The reference voltage generator is configured to generate a maximum gamma voltage and a minimum gamma voltage. The capacitor circuit is configured to, response to receiving the first driving voltage, charge a first charge based on a voltage difference between a first driving voltage and the maximum gamma voltage and charge a second charge based on a voltage difference between the first driving voltage and the minimum gamma voltage. The capacitor circuit is configured to, in response to receiving a second driving voltage, output a first gamma reference voltage and a second gamma reference voltage. The gamma voltage generator is configured to generate a plurality of gamma voltages based on the first gamma reference voltage and the second gamma reference voltage.

公开(公告)号：US20180024677A1

公开(公告)日：2018-01-25

申请号：US15637635

申请日：2017-06-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsung KIM ,  Jaehun JEONG ,  Haewoon PARK ,  Seung-Hoon BAEK ,  San-ho BYUN ,  Jinbong KIM ,  YoonKyung CHOI

IPC: G06F3/041 ,  G09G3/3275 ,  G09G3/3266 ,  G06F3/044 ,  G09G3/3233

CPC classification number: G06F3/0412 ,  G06F1/3262 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2300/0809 ,  G09G2310/0264 ,  G09G2320/029

Abstract: An operating method of a touch display driving integrated circuit that is connected with a touch display panel through touch sensing lines and data lines is provided. The method includes applying a common voltage to each touch sensing line, increasing voltages of the touch sensing lines and the data lines by a predetermined level, providing a first touch sensing signal to each touch sensing line, and sensing a touch of a user based on signal variations of the touch sensing lines.