公开(公告)号：US20220308696A1

公开(公告)日：2022-09-29

申请号：US17581377

申请日：2022-01-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SOONGYU LEE ,  JINWOO KIM ,  JEONGHEON LEE

IPC: G06F3/044 ,  G06F3/041

Abstract: Provided is an electronic device including a display panel configured to display an image, an input sensing layer on the display panel, and configured to operate in a first sensing mode in which a first input is sensed, or a second sensing mode in which a second input provided by an input device is sensed, and a sensing controller configured to control an operation of the input sensing layer, wherein, in the first sensing mode, the sensing controller operates in a first mode in which an uplink signal for searching the input device is transmitted at a first frequency to the input sensing layer, or a second mode in which the uplink signal is transmitted at a second frequency, which is less than the first frequency, to the input sensing layer, and wherein, in the second sensing mode, the sensing controller transmits the uplink signal at the first frequency to the input sensing layer.

公开(公告)号：US20220083193A1

公开(公告)日：2022-03-17

申请号：US17334607

申请日：2021-05-28

Applicant: Samsung Display Co., Ltd.

Inventor： JINA KANG ,  DONGCHUN LEE ,  SOONGYU LEE ,  JINWOO KIM ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G09G3/20 ,  G09G3/00

Abstract: An electronic device includes: an input sensor on a display panel; and a sensor controller configured to operate in a first mode for sensing a first input by an input device or a second mode for sensing a second input through the input sensor, the sensor controller being configured to transmit an uplink signal to the input device through the input sensor and to receive a downlink signal from the input device through the input sensor in the first mode, wherein an input sensing frame comprises an uplink period in which the uplink signal is provided to the input sensor, and an interval between a start time point of the display frame and a start time point of the uplink period is variable in a unit of at least one input sensing frame during k input sensing frames, where k is an integer equal to or greater than 2.

公开(公告)号：US20170278471A1

公开(公告)日：2017-09-28

申请号：US15467706

申请日：2017-03-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JINWOO KIM ,  BYEONG-DOO KANG ,  JONG-HWA KIM ,  JONGMAN BAE

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2310/027 ,  G09G2320/0673 ,  G09G2330/02

Abstract: A display panel driving apparatus includes a data driver, a gate driver, an extra resistance part through which a constant current passes, and a circuit configured to generate a first gamma voltage, and output a first extra gamma voltage indirectly to the data driver through the extra resistance part. The data driver is configured to generate a data signal based on the first gamma voltage and output the data signal to a data line of a display panel. The gate driver is configured to output a gate signal to a gate line of the display panel.