公开(公告)号：US20200098330A1

公开(公告)日：2020-03-26

申请号：US16569562

申请日：2019-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun PYUN ,  Keunoh KANG ,  Moonshik KANG ,  Gwangsoo AHN ,  Dae-sik LEE

IPC: G09G5/00 ,  G06F1/08

Abstract: A data driver of a display device includes an equalizer and an equalizer controller. The equalizer controller calculates a lock time during a training enable signal is in an active state while sequentially changing a set signal applied to the equalizer to one option code selected from among a plurality of option codes and provides an option code corresponding to a set lock time among the option codes to the equalizer as the set signal.

公开(公告)号：US20210158744A1

公开(公告)日：2021-05-27

申请号：US16997642

申请日：2020-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Keunoh KANG ,  Yanguk NAM ,  Gwangsoo AHN

IPC: G09G3/20 ,  G11C19/28

Abstract: A display device includes a display panel, a gate driving circuit including a plurality of stages, and a power supply circuit outputting a clock signal, a clock-bar signal, a first discharge voltage, and a second discharge voltage. Each of stages includes a charge part that charges a clock signal having a first high voltage to a charge node, an output part that charges the first high voltage to an output node in response to a first node voltage of the charge node and outputs a second node voltage of the output node to a gate signal, a first discharge part that discharges the second node voltage to a first discharge voltage in response to the clock-bar signal having a second high voltage, and a second discharge part that discharges the first node voltage to a second discharge voltage in response to the clock-bar signal having the second high voltage.

公开(公告)号：US20200211441A1

公开(公告)日：2020-07-02

申请号：US16728756

申请日：2019-12-27

Applicant: Samsung Display Co., Ltd.

Inventor： Gwangsoo AHN ,  Keunoh KANG ,  Kihyun PYUN ,  Moonshik KANG

IPC: G09G3/20

Abstract: A display system includes a source device and a sink device. The source device generates red-color display data, green-color display data, and blue-color display data and transmits first packet data including the red-color display data and a red-color display reference gamma-set, second packet data including the green-color display data and a green-color display reference gamma-set, and third packet data including the blue-color display data and a blue-color display reference gamma-set. The sink device converts the red-color display data, the green-color display data, and the blue-color display data into red-color display data-voltages, green-color display data-voltages, and blue-color display data-voltages and displays an image using the red-color display data-voltages, the green-color display data-voltages, and the blue-color display data-voltages. The sink device generates red-color display gamma-voltages, green-color display gamma-voltages, and blue-color display gamma-voltages based on the red-color display reference gamma-set, the green-color display reference gamma-set, and the blue-color display reference gamma-set, respectively.

公开(公告)号：US20200258455A1

公开(公告)日：2020-08-13

申请号：US16790525

申请日：2020-02-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dae-Sik LEE ,  Yoongu KIM ,  Seung Young CHOI ,  Keunoh KANG ,  Kihyun PYUN

IPC: G09G3/34 ,  G09G3/36

Abstract: A light source apparatus includes a light source and a light source driver. The light source includes a plurality of scan blocks. Each scan block includes a plurality of local dimming blocks. The light source driver includes a plurality of channels configured to output light source driving signals to the plurality of local dimming blocks. The light source driving signal includes a light source intensity value representing a light intensity of a local dimming block from among the plurality of local dimming blocks and a delay value representing a degree of a delay of the local dimming block. The delay value is determined by a scan delay value varied according to the plurality of scan blocks and a delay parameter.

公开(公告)号：US20200118495A1

公开(公告)日：2020-04-16

申请号：US16571487

申请日：2019-09-16

Applicant: Samsung Display Co., Ltd.

Inventor： Keunoh KANG ,  Dae-Sik LEE ,  Kihyun PYUN ,  Song Yi HAN

IPC: G09G3/3266 ,  G09G3/3225 ,  G09G3/3275 ,  G09G3/36

Abstract: A display device includes a display panel including scan lines, data lines, and a plurality of pixels coupled to the scan lines and the data lines, a voltage generator configured to generate an on-voltage and an off-voltage, a scan controller configured to generate a scan start signal based on the on-voltage, the off-voltage, and a vertical start signal, and a scan driver configured to generate a scan signal based on the scan start signal and to provide the scan signal to a scan line of the scan lines. The scan controller is configured to detect a voltage level of the scan start signal and to output a shutdown signal based on the voltage level of the scan start signal during an over current detecting period.