公开(公告)号：US20240347001A1

公开(公告)日：2024-10-17

申请号：US18388830

申请日：2023-11-11

Applicant: Samsung Display Co., LTD.

Inventor： Se Hyuk PARK ,  Young Ha SOHN ,  Jin Wook YANG ,  Dong Gyu LEE ,  Suk Hun LEE ,  Jae Hyeon JEON

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2320/0242 ,  G09G2320/0285

Abstract: A display device includes an on-duty determiner which determines an on-duty period of an emission signal, based on a number of at least one cycle of a current frame, a first compensation value determiner which determines a first compensation value of a bias voltage according to a variation of the on-duty period, a second compensation value determiner which determines a second compensation value of the bias voltage, based on a driving frequency of a previous frame, and a third compensation value determiner which determines a third compensation value, based on the first compensation value and the second compensation value.

公开(公告)号：US20220375400A1

公开(公告)日：2022-11-24

申请号：US17657807

申请日：2022-04-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soon Dong KIM ,  Sang An KWON ,  Jin Wook YANG ,  Chang Noh YOON

IPC: G09G3/32

Abstract: A display device includes a display panel having first and second display areas. A data driver provides data and bias voltages to data lines. A timing controller controls the data driver and a scan driver based on at least two operation modes. The first mode drives the first and second display areas at a normal frequency, and the second mode drives the first display area at a first frequency substantially equal to or lower than the normal frequency and the second display area at a second frequency lower than the first frequency. The second mode includes an active frame to write a reference voltage to display a black image in the second display area, and blank frames to maintain the reference voltage and apply the bias voltage to the pixels in the second display area. The data driver varies the bias voltage in the blank frames.

公开(公告)号：US20210049965A1

公开(公告)日：2021-02-18

申请号：US16943197

申请日：2020-07-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hyeon JEON ,  Joon Chul GOH ,  Jin Wook YANG ,  Ki Hong SONG

IPC: G09G3/3258 ,  G09G3/3266

Abstract: A display device includes: a plurality of pixels, where each of the pixels includes a light emitting device and a pixel circuit coupled to the light emitting device; a scan driver which supplies a scan signal to the pixel circuit; a data driver which supplies a data signal to the pixel circuit; a power supply which supplies a voltage to the pixel circuit; a timing controller which controls the scan driver; a first signal generator which provides a first clock signal to the timing controller; and a second signal generator which provides a second clock signal to the timing controller.

公开(公告)号：US20250087139A1

公开(公告)日：2025-03-13

申请号：US18956066

申请日：2024-11-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se Hyuk PARK ,  Hong Soo KIM ,  Young Ha SOHN ,  Jin Wook YANG ,  Dong Gyu LEE ,  Jae Hyeon JEON

IPC: G09G3/32

Abstract: A pixel includes: a light emitting element; a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is to be applied, and a third node electrically connected to the light emitting element; and a bias control transistor configured to be controlled in operating timing thereof by a bias control signal, and configured to switch electrical connection between the second node and a bias power line for transmitting a bias voltage. In one frame period, a voltage level of the bias voltage to be applied to the second node sequentially increases.

公开(公告)号：US20240096265A1

公开(公告)日：2024-03-21

申请号：US18133593

申请日：2023-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Ha SOHN ,  Se Hyuk PARK ,  Jin Wook YANG ,  Dong Gyu LEE ,  Jae Hyeon JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0278 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.

公开(公告)号：US20230089661A1

公开(公告)日：2023-03-23

申请号：US17724695

申请日：2022-04-20

Applicant: Samsung Display Co., LTD.

Inventor： Young Ha SOHN ,  Se Hyuk PARK ,  Hae Kwan SEO ,  Jin Wook YANG

IPC: G09G3/32

Abstract: A pixel includes a light emitting element, a first transistor including a gate electrode electrically connected to a first node, a second transistor including a gate electrode connected to a first scan line, a third transistor including a gate electrode connected to the first scan line, a fourth transistor including a gate electrode connected to a second scan line, a fifth transistor including a gate electrode electrically connected to a third scan line, an sixth transistor including a gate electrode electrically connected to the third scan line, a resistor electrically connected in parallel with the sixth transistor between the second node and the anode of the light emitting element, and an amplifier having a non-inverting terminal and an inverting terminal electrically connected to ends of the resistor, respectively.

公开(公告)号：US20220375380A1

公开(公告)日：2022-11-24

申请号：US17723584

申请日：2022-04-19

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk PARK ,  Hong Soo KIM ,  Jin Young ROH ,  Hae Kwan SEO ,  Jin Wook YANG ,  Hyo Jin LEE ,  Jae Keun LIM

IPC: G09G3/20

Abstract: A display system and a driving method for a display system that includes an application processor configured to supply a mode control signal corresponding to a plurality of driving modes and input image data corresponding thereto; and a display module that includes pixels configured to display an image and configured to control any one of a plurality of gamma values and power source voltages supplied to the pixels in response to the plurality of driving modes.

公开(公告)号：US20210065620A1

公开(公告)日：2021-03-04

申请号：US17000404

申请日：2020-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Wook YANG ,  Yu Chol KIM ,  Ji Hye KIM ,  Young Ha SOHN ,  Jae Hyeon JEON

IPC: G09G3/3208

Abstract: The present disclosure relates to a display device and a method of driving the same. The display device includes a substrate, a display panel including a first display area including first pixels, a second display area including second pixels, and a third display area disposed between the first and second display areas and including third pixels, and a component disposed between the substrate and the display panel so as to overlap the second display area. Transmittance of the second display area is higher than transmittance of the first display area and transmittance of the third display area, and the third pixels are controlled such that a luminance gradually changes according to a distance from the second display area.

公开(公告)号：US20240404478A1

公开(公告)日：2024-12-05

申请号：US18804631

申请日：2024-08-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Kwan SEO ,  Jin Young ROH ,  Young Ha SOHN ,  Jin Wook YANG

IPC: G09G3/3275 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device includes a display panel including a first pixel column in which first and third color pixels are alternately disposed, a second pixel column in which second color pixels are disposed, a third pixel column in which the third and first color pixels are alternately disposed, and a fourth pixel column in which the second color pixels are disposed. The display device further includes a scan driver applying a scan signal to scan lines, a data driver including a first source channel supplying a first color data signal and a second color data signal to a first data line, and a second source channel supplying the second color data signal and a third color data signal to a second data line, and a demultiplexer successively selecting the first and second sub-data lines during a period in which the scan signal is supplied to each scan line.

公开(公告)号：US20240054957A1

公开(公告)日：2024-02-15

申请号：US18382068

申请日：2023-10-20

Applicant: Samsung Display Co., LTD.

Inventor： Se Hyuk PARK ,  Jin Young ROH ,  Woo Mi BAE ,  Hae Kwan SEO ,  Young Ha SOHN ,  Jin Wook YANG

IPC: G09G3/3241 ,  G09G3/20

CPC classification number: G09G3/3241 ,  G09G3/2074 ,  G09G2300/0413 ,  G09G2300/0426

Abstract: A display device includes: a data driver for supplying a data signal to each of a plurality of data lines; and a pixel unit including a plurality of sub-pixels. The pixel unit further includes one dummy data line disposed separate from a data line of a first column among the data lines. The data line of the first column is connected to sub-pixels disposed on odd-numbered pixel rows among sub-pixels disposed on a first pixel column, and is connected to sub-pixels disposed on even-numbered pixel rows among sub-pixels disposed on a third pixel column. The dummy data line is connected to sub-pixels disposed on the even-numbered pixel rows among the sub-pixels disposed on the first pixel column.