公开(公告)号：US12283254B2

公开(公告)日：2025-04-22

申请号：US18373062

申请日：2023-09-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sugyeung Kang ,  Sungmok Lee ,  Changyeon Cho ,  Kang Joo Kim ,  Sunkwon Kim

IPC: G09G3/34

Abstract: A backlight module includes a pixel driver integrated circuit (PDIC) configured to generate a switch control signal and a pulse control signal, the pulse control signal including timing information and dimming data, a pixel integrated circuit (PIC) configured to generate a pulse modulation signal based on the pulse control signal, a switch group configured to transfer a driving voltage based on the switch control signal, and a backlight unit (BLU) including a first end connected to the switch group and a second end connected to the PIC, the BLU configured to emit light on a panel based on the driving voltage and the pulse modulation signal, where the PDIC is configured to generate the switch control signal and the pulse control signal such that a light emitting diode emits light at a time point at which a pixel of the panel operates.

公开(公告)号：US10083287B2

公开(公告)日：2018-09-25

申请号：US15132346

申请日：2016-04-19

Applicant: Samsung Electronics Co., Ltd

Inventor： Tae Hyeon Kwon ,  Kang Joo Kim ,  Yong Il Kwon

IPC: G06F21/32 ,  G06F21/83 ,  G06F1/32 ,  G06F1/16 ,  G06F3/0354 ,  G06F3/041 ,  G06K9/03 ,  G06K9/00

CPC classification number: G06F21/32 ,  G06F1/1684 ,  G06F1/3215 ,  G06F1/3262 ,  G06F3/03547 ,  G06F3/0416 ,  G06F21/83 ,  G06F2203/0338 ,  G06K9/0002 ,  G06K9/0008 ,  G06K9/036

Abstract: A fingerprint sensing device includes a sensing circuit configured to extract sensing data from nodes included in each of sampling regions of a sensor array. The fingerprint sensing device also includes a control circuit configured to calculate a number of the nodes based on the extracted sensing data to produce sensing data distributions for each of the sampling regions and compare the sensing data distributions with reference distributions, configured to determine that the sampling regions from which the sensing data distributions corresponding to the reference distributions are extracted are effective contact regions, and configured to generate fingerprint information from the sensor array when the number of effective contact regions is greater than or equal to a threshold.

公开(公告)号：US12170068B2

公开(公告)日：2024-12-17

申请号：US18208543

申请日：2023-06-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junil Park ,  Sugyeung Kang ,  Yongil Kwon ,  Kang Joo Kim ,  Alan Kyongho Kim ,  Sunkwon Kim ,  Yong-Yun Park ,  Jung-Pil Lim ,  Hyunwook Lim

IPC: G09G3/34 ,  G09G5/00

Abstract: In a backlight apparatus, a master driving circuit generates a transmission frame including a training period including a clock training pattern and a data period including a plurality of data packets respectively corresponding to the plurality of blocks. A plurality of slave driving circuits correspond to the plurality of blocks, respectively, and are connected to the master driving circuit in a daisy chain structure. Each slave driving circuit receives the transmission frame through the daisy chain structure, recovers a clock based on the clock training pattern, and drives the plurality of light emitting elements included in a corresponding block among the plurality of blocks based on its own data packet among a plurality of data packets.