公开(公告)号：US20210304681A1

公开(公告)日：2021-09-30

申请号：US17346470

申请日：2021-06-14

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Woo Noh ,  Yun Ki Bae ,  Kwang Suk Shin

IPC: G09G3/3275 ,  G09G3/3266

Abstract: An organic light emitting diode (OLED) display device supporting a variable frame mode includes an OLED display panel, a data driver configured to provide a data signal to the OLED display panel, a scan driver configured to provide a scan signal to the OLED display panel, an emission driver configured to provide an emission control signal to the OLED display panel, and a controller configured to control the data driver, the scan driver and the emission driver, to count a time of a current frame, and to control the emission driver to decrease an off period ratio of the emission control signal as the counted time of the current frame increases.

公开(公告)号：US11037506B2

公开(公告)日：2021-06-15

申请号：US16715581

申请日：2019-12-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Woo Noh ,  Yun Ki Bae ,  Kwang Suk Shin

IPC: G09G3/3275 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3225

Abstract: An organic light emitting diode (OLED) display device supporting a variable frame mode includes an OLED display panel, a data driver configured to provide a data signal to the OLED display panel, a scan driver configured to provide a scan signal to the OLED display panel, an emission driver configured to provide an emission control signal to the OLED display panel, and a controller configured to control the data driver, the scan driver and the emission driver, to count a time of a current frame, and to control the emission driver to decrease an off period ratio of the emission control signal as the counted time of the current frame increases.

公开(公告)号：US11532280B2

公开(公告)日：2022-12-20

申请号：US17346470

申请日：2021-06-14

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Woo Noh ,  Yun Ki Bae ,  Kwang Suk Shin

IPC: G09G3/3275 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3225

Abstract: An organic light emitting diode (OLED) display device supporting a variable frame mode includes an OLED display panel, a data driver configured to provide a data signal to the OLED display panel, a scan driver configured to provide a scan signal to the OLED display panel, an emission driver configured to provide an emission control signal to the OLED display panel, and a controller configured to control the data driver, the scan driver and the emission driver, to count a time of a current frame, and to control the emission driver to decrease an off period ratio of the emission control signal as the counted time of the current frame increases.

公开(公告)号：US11250755B2

公开(公告)日：2022-02-15

申请号：US17004160

申请日：2020-08-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwang Suk Shin

IPC: G09G3/20 ,  G06K9/00

Abstract: A display device includes: a display panel which displays an image corresponding to an input image data in a display area; and a fingerprint sensor which senses a fingerprint of a finger using light reflected by the finger positioned on the display area among light emitted from the display panel. When a fingerprint sensing mode is changed to an activated state from an inactivated state, a luminance of an image displayed in a first display area corresponding to a position of the finger in the display area is increased.

公开(公告)号：US11158266B2

公开(公告)日：2021-10-26

申请号：US16401083

申请日：2019-05-01

Applicant: Samsung Display Co., Ltd.

Inventor： Sung-Yeol Baek ,  Weon Jun Choe ,  Kwang Suk Shin

IPC: G09G3/3291

Abstract: A display device includes a frame frequency detector, a data generator, a data driver, and a plurality of pixels. The frame frequency detector is configured to detect a varied frame frequency to generate frame frequency information. The data generator is configured to receive an image signal and the frame frequency information, confirm an expanded frame period exceeding a reference frame period in one frame from the frame frequency information, and correct an image data signal corresponding to the image signal to correspond to a luminance changed according to the expanded frame period. The data driver is configured to output a data voltage corresponding to the image data signal. The plurality of pixels is configured to emit luminance corresponding to the data voltage. The reference frame period is a period in which the plurality of pixels is configured to emit light with a constant luminance corresponding to the data voltage.

公开(公告)号：US10762819B2

公开(公告)日：2020-09-01

申请号：US16177770

申请日：2018-11-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwang Suk Shin

IPC: G09G3/20 ,  G06K9/00

Abstract: A display device includes: a display panel which displays an image corresponding to an input image data in a display area; and a fingerprint sensor which senses a fingerprint of a finger using light reflected by the finger positioned on the display area among light emitted from the display panel. When a fingerprint sensing mode is changed to an activated state from an inactivated state, a luminance of an image displayed in a first display area corresponding to a position of the finger in the display area is increased.