公开(公告)号：US20230306907A1

公开(公告)日：2023-09-28

申请号：US18113296

申请日：2023-02-23

Applicant: Samsung Display Co., Ltd.

Inventor： SUBIN PARK ,  SOYOUNG KIM ,  JUNGKOOK PARK

IPC: G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2310/08 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2300/0465

Abstract: A display device includes a display panel including pixels, and a timing controller which determines a first dimming period and a second dimming period based on a maximum luminance, determines an emission off ratio of the pixels as a first off ratio increasing discretely as the maximum luminance decreases in the first dimming period, and determines the emission off ratio as a second off ratio in the second dimming period.

公开(公告)号：US20230186832A1

公开(公告)日：2023-06-15

申请号：US17968571

申请日：2022-10-18

Applicant: Samsung Display Co., Ltd.

Inventor： KYOUNGJU SHIN ,  DOHYUN KANG ,  YANGSOO KIM ,  JUNGKOOK PARK ,  MOONSANG HWANG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2310/0278 ,  G09G2300/0842 ,  G09G2320/0626

Abstract: A pixel circuit includes a light emitting element, a driving transistor, a first emission transistor applying a first power voltage to the driving transistor in response to a first emission signal, a second emission transistor applying the driving current to the light emitting element in response to a second emission signal, a first initialization transistor applying a first initialization voltage to an anode electrode of the light emitting element in response to the second emission signal, a data write transistor, a compensation transistor, a second initialization transistor, and a storage capacitor. A first off-duty ratio which is a ratio of a high voltage level period of the first emission signal in one frame is determined according to a set luminance level, and a second off-duty ratio which is a ratio of a high voltage level period of the second emission signal in the one frame is fixed.

公开(公告)号：US20230350518A1

公开(公告)日：2023-11-02

申请号：US18188327

申请日：2023-03-22

Applicant: Samsung Display Co., Ltd.

Inventor： DONGHAK PYO ,  JUNGKOOK PARK

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  G06F3/0446

Abstract: A display device includes a display panel and an input sensing unit on the display panel, the input sensing unit includes sensing pads, sensing electrodes overlapping the display area and arranged in rows and columns, and sensing wirings connecting the sensing pads and the sensing electrodes, the sensing wirings include first trace wirings and second trace wirings on different layers, the sensing electrodes include a first row sensing electrode and a second row sensing electrode, and a third row sensing electrode and a fourth row sensing electrode, the first trace wirings are connected to each of the first row sensing electrode and the second row sensing electrode, and the second trace wirings are connected to each of the third row sensing electrode and the fourth row sensing electrode.

公开(公告)号：US20220358875A1

公开(公告)日：2022-11-10

申请号：US17684695

申请日：2022-03-02

Applicant: Samsung Display Co., Ltd.

Inventor： HYEONUK WON ,  DOHYUN KANG ,  JUNGKOOK PARK ,  DONGHAK PYO

IPC: G09G3/32

Abstract: A display apparatus is disclosed. The display apparatus includes a display panel including first pixels and second pixels, and a display panel driver which drives the display panel. In a first mode, the display panel driver drives both the first pixels and the second pixels. In a second mode, the display panel driver drives the second pixels in a first part for one frame, and drives the first pixels in a second part for the one frame.

公开(公告)号：US20220301478A1

公开(公告)日：2022-09-22

申请号：US17530988

申请日：2021-11-19

Applicant: Samsung Display Co., Ltd.

Inventor： HYUN-SEOK JEONG ,  JUNGKOOK PARK

IPC: G09G3/20

Abstract: A display device includes a display panel including a gate line, a data line, and a pixel electrically connected to the gate line and the data line and that displays an image based on input image data, a gate driver which outputs a gate signal to the gate line, a data driver which outputs a data voltage to the data line, and a driving controller which controls the gate driver and the data driver. The pixel includes a first pixel that emits light in a first mode and does not emit light in a second mode and a second pixel that emits light in both the first mode and the second mode, where the second pixel has a narrower viewing angle than the first pixel. The gate line includes a first gate line connected only to the first pixel and a second gate line connected only to the second pixel.

公开(公告)号：US20230326401A1

公开(公告)日：2023-10-12

申请号：US18203926

申请日：2023-05-31

Applicant: Samsung Display Co., Ltd.

Inventor： HYEONUK WON ,  DOHYUN KANG ,  JUNGKOOK PARK ,  DONGHAK PYO

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2358/00 ,  G09G2310/027 ,  G09G2320/0285 ,  G09G2310/0243

Abstract: A display apparatus is disclosed. The display apparatus includes a display panel including first pixels and second pixels, and a display panel driver which drives the display panel. In a first mode, the display panel driver drives both the first pixels and the second pixels. In a second mode, the display panel driver drives the second pixels in a first part for one frame, and drives the first pixels in a second part for the one frame.

公开(公告)号：US20230290307A1

公开(公告)日：2023-09-14

申请号：US18120104

申请日：2023-03-10

Applicant: Samsung Display Co., Ltd.

Inventor： KYOUNGJU SHIN ,  YANGSOO KIM ,  JUNGKOOK PARK ,  JAEYOUNG OH ,  WOOJIN LEE ,  JAEHO JUNG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  H10K59/35

Abstract: A pixel circuit of a display device includes first to sixth thin-film transistors, and first and second capacitors. The first thin-film transistor generates a driving current, the sixth thin-film transistor is connected between a light-emitting element and the first thin-film transistor and controls a transfer of the driving current, and the second capacitor is connected between a gate electrode of the sixth thin-film transistor and the light-emitting element.

公开(公告)号：US20220310734A1

公开(公告)日：2022-09-29

申请号：US17705755

申请日：2022-03-28

Applicant: Samsung Display Co., Ltd.

Inventor： DONGWAN PARK ,  JUNGKOOK PARK ,  DOHYUN KANG

IPC: H01L27/32

Abstract: A display device includes a switching part and a first pixel circuit electrically connected to the switching part, and the switching part outputs a turn-off voltage to a first node in a first mode and outputs an initialization voltage to the first node in a second mode. The first pixel circuit includes a first transistor including a gate terminal electrically connected to the first node, a first terminal electrically connected to a second node, and a second terminal electrically connected to an organic light emitting diode and a second transistor including a gate terminal which receives a gate signal, a first terminal which receives a data voltage, and a second terminal electrically connected to the second node.