公开(公告)号：US11151924B2

公开(公告)日：2021-10-19

申请号：US16828726

申请日：2020-03-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jinyoung Roh ,  Sangan Kwon ,  Sehyuk Park ,  Hyo Jin Lee ,  HongSoo Kim ,  Sukhun Lee

IPC: G09G5/393 ,  G09G3/20

Abstract: A display driver includes a still image detector configured to receive a compressed image bitstream at an input frame frequency from a host processor, and to detect a still image by comparing the compressed image bitstream of a current frame and the compressed image bitstream of a previous frame, a driving frequency changer configured to output the compressed image bitstream at a first output frame frequency equal to the input frame frequency when the still image is not detected, and to output the compressed image bitstream at a second output frame frequency lower than the input frame frequency when the still image is detected, and a decoder configured to generate original image data at the first output frame frequency and the second output frame frequency.

公开(公告)号：US11069295B2

公开(公告)日：2021-07-20

申请号：US16579476

申请日：2019-09-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hui Nam ,  Hyo Jin Lee ,  Jinyoung Roh ,  Sehyuk Park

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver outputs a data write gate signal having a corresponding active level and a data initialization gate signal having a corresponding active level to the pixel in a writing frame, outputs the data write gate signal not having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a holding frame and outputs the data write gate signal having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a writing compensation frame. The data driver outputs a data voltage to the pixel. The emission driver outputs an emission signal to the pixel.

公开(公告)号：US11049451B2

公开(公告)日：2021-06-29

申请号：US16888284

申请日：2020-05-29

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Sangan Kwon ,  HongSoo Kim ,  Jinyoung Roh ,  Hyojin Lee

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device including: a controller including: a zone splitting block configured to divide input image data into a plurality of partial image data respectively corresponding to a plurality of partial panel zones of the display panel; a plurality of panel zone frequency deciding blocks configured to determine a plurality of driving frequencies for the plurality of partial panel zones by analyzing the plurality of partial image data, respectively; a non-driving period setting block configured to classify a plurality of frame periods into a driving frame period and a non-driving frame period based on a maximum driving frequency of the plurality of driving frequencies; and a scan driver control block configured to provide the scan driver input signal to the scan driver in the driving frame period, and to not provide the scan driver input signal to the scan driver in the non-driving frame period.

公开(公告)号：US20200349893A1

公开(公告)日：2020-11-05

申请号：US16800122

申请日：2020-02-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYO JIN LEE ,  Sangan Kwon ,  Hui Nam ,  Jinyoung Roh ,  Sehyuk Park

IPC: G09G3/3291

Abstract: A display device includes a display panel including a plurality of pixels and a display panel driver configured to drive the display panel. Here, the display panel driver is configured to receive input image data, to drive the display panel at a first driving frequency when the input image data corresponds to a moving image, and to select one of a plurality of flicker lookup tables based on the first driving frequency and drive the display panel at a second driving frequency based on the flicker lookup table when the input image data corresponds to a still image.

公开(公告)号：US20200219450A1

公开(公告)日：2020-07-09

申请号：US16737363

申请日：2020-01-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyojin Lee ,  Sehyuk Park ,  Jinyoung Roh ,  Geunjeong Park ,  Eunho Lee ,  Hui Nam ,  Bonghyun You

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.

公开(公告)号：US10121405B2

公开(公告)日：2018-11-06

申请号：US15204944

申请日：2016-07-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jongsoo Kim ,  Sehyuk Park ,  Woomi Bae ,  Myungho Lee ,  Myoungseop Song

IPC: G09G5/00 ,  G09G3/20

Abstract: A display apparatus includes a display panel having a first connector, and a driving device having a second connector configured to electrically connect to the first connector, wherein the display panel includes a connection state confirmation unit configured to output a connection state signal including connection information between the first connector and the second connector, and wherein the driving device includes a first power supply configured to supply power to the display panel when the connection state signal includes the connection information that a connection state between the first connector and the second connector.

公开(公告)号：US20170061858A1

公开(公告)日：2017-03-02

申请号：US15204944

申请日：2016-07-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jongsoo Kim ,  Sehyuk Park ,  Woomi Bae ,  Myungho Lee ,  Myoungseop Song

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2330/02 ,  G09G2380/02

Abstract: A display apparatus includes a display panel having a first connector, and a driving device having a second connector configured to electrically connect to the first connector, wherein the display panel includes a connection state confirmation unit configured to output a connection state signal including connection information between the first connector and the second connector, and wherein the driving device includes a first power supply configured to supply power to the display panel when the connection state signal includes the connection information that a connection state between the first connector and the second connector.

Abstract translation: 一种显示装置，包括具有第一连接器的显示面板和具有电连接到第一连接器的第二连接器的驱动装置，其中，所述显示面板包括：连接状态确认单元，被配置为输出连接状态信号，所述连接状态信号包括： 所述第一连接器和所述第二连接器，并且其中所述驱动装置包括被配置为当所述连接状态信号包括所述第一连接器和所述第二连接器之间的连接状态的连接信息时向所述显示面板供电的第一电源。