公开(公告)号：US20250069538A1

公开(公告)日：2025-02-27

申请号：US18636934

申请日：2024-04-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsung Kim ,  Seung-Hoon Baek ,  Choonghoon Lee ,  Jeong Cho

IPC: G09G3/20

Abstract: A display device includes a pixel array including a plurality of pixels connected to a plurality of source lines, a voltage generator configured to generate a reference voltage, and a source driver configured to output a first source signal corresponding to a first source line among the plurality of source lines, receive a first return signal corresponding to the first source signal through a second source line positioned adjacent to the first source line, and generate a first count value based on a first comparison result of the first return signal and the reference voltage.

公开(公告)号：US12136377B2

公开(公告)日：2024-11-05

申请号：US18061588

申请日：2022-12-05

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：US12236839B1

公开(公告)日：2025-02-25

申请号：US18636934

申请日：2024-04-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsung Kim ,  Seung-Hoon Baek ,  Choonghoon Lee ,  Jeong Cho

IPC: G09G3/20

Abstract: A display device includes a pixel array including a plurality of pixels connected to a plurality of source lines, a voltage generator configured to generate a reference voltage, and a source driver configured to output a first source signal corresponding to a first source line among the plurality of source lines, receive a first return signal corresponding to the first source signal through a second source line positioned adjacent to the first source line, and generate a first count value based on a first comparison result of the first return signal and the reference voltage.

公开(公告)号：US20250166555A1

公开(公告)日：2025-05-22

申请号：US18811287

申请日：2024-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsung KIM ,  Seung-Hoon Baek

IPC: G09G3/32

Abstract: According to an embodiment, a buffer circuit includes an operational amplifier configured to output an output voltage based on voltages of a first output node and a second output node which vary in response to an input voltage of the operational amplifier, and a slew rate compensating circuit configured to receive the input voltage and the output voltage, generate a compensation current which is proportional to a voltage difference between the input voltage and the output voltage, and supply the compensation current to the first output node or the second output node.

公开(公告)号：US20250148958A1

公开(公告)日：2025-05-08

申请号：US19017163

申请日：2025-01-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minsung Kim ,  Seung-Hoon Baek ,  Choonghoon Lee ,  Jeong Cho

IPC: G09G3/20

Abstract: A display device includes a pixel array including a plurality of pixels connected to a plurality of source lines, a voltage generator configured to generate a reference voltage, and a source driver configured to output a first source signal corresponding to a first source line among the plurality of source lines, receive a first return signal corresponding to the first source signal through a second source line positioned adjacent to the first source line, and generate a first count value based on a first comparison result of the first return signal and the reference voltage.

公开(公告)号：US20250022438A1

公开(公告)日：2025-01-16

申请号：US18420518

申请日：2024-01-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Choonghoon Lee ,  Minsung Kim ,  Sung-Jin Park ,  Seung-Hoon Baek ,  Jeong Cho

IPC: G09G5/12

Abstract: A display device includes a first display driver circuit that outputs a first gamma reference voltage to a first display panel, and a second display driver circuit that outputs a second gamma reference voltage to a second display panel different from the first display panel, and determines the difference between the first gamma reference voltage and the second gamma reference voltage, and keeps outputting the second gamma reference voltage when the difference is smaller than a first reference value, and changes the second gamma reference voltage when the second gamma reference voltage is less than the first gamma reference voltage and the difference is equal to or greater than the first reference value.

公开(公告)号：US10474281B2

公开(公告)日：2019-11-12

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 ,  G09G3/20

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.