公开(公告)号：US20240290235A1

公开(公告)日：2024-08-29

申请号：US18536707

申请日：2023-12-12

Applicant: Samsung Display Co., LTD.

Inventor： SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM ,  GEUNJEONG PARK ,  CHANGNOH YOON

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/035 ,  G09G3/32 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A display device includes a display panel including pixels, and a panel driver which drive the display panel. Each frame period for the display panel includes N emission cycles, where N is an integer greater than 1. In a partial driving mode, the panel driver sets a black region of the display panel from a M/N point of the display panel along a direction perpendicular to an emission signal line, where M is an integer greater than 0 and less than N, and drives the display panel to display an image corresponding to input image data in a remaining region of the display panel other than the black region and to display a black image in the black region.

公开(公告)号：US20240404451A1

公开(公告)日：2024-12-05

申请号：US18585325

申请日：2024-02-23

Applicant: Samsung Display Co., LTD.

Inventor： JIHYE KIM ,  SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM ,  GEUNJEONG PARK ,  CHANGNOH YOON

IPC: G09G3/20 ,  G09G3/00 ,  G09G3/32

Abstract: A driving controller includes a compensation unit that receives an image signal corresponding to a first display area and a second display area, calculates stress data based on the image signal and previous stress data, and outputs an image data signal, which is obtained by compensating for the image signal based on the stress data, a memory that stores the stress data of a previous frame from the compensation unit and provides the previous stress data, and a multi-frequency compensation unit that receives a data enable signal, counts a number of consecutive masking enable frames when the data enable signal indicates a multi-frequency mode, calculates accumulated second stress data based on the number of the consecutive masking enable frames and second stress data, which corresponds to the second display area, from among the stress data from the memory, and stores the accumulated second stress data in the memory.

公开(公告)号：US20240371312A1

公开(公告)日：2024-11-07

申请号：US18418890

申请日：2024-01-22

Applicant: Samsung Display Co., LTD.

Inventor： TAEHOON KIM ,  SANGAN KWON ,  SOON-DONG KIM ,  GEUNJEONG PARK ,  CHANGNOH YOON ,  JAEKEUN LIM

IPC: G09G3/20 ,  G09G3/00 ,  G09G3/32

Abstract: A display panel driving circuit includes a scan driving circuit including a scan stage and a timing controller. The scan stage includes a first circuit connected to a first input node of receiving a first clock signal, a second circuit connected to a second input node of receiving a second clock signal, a third circuit connected to a third input node of receiving a carry signal, the first circuit, and the second circuit and connected to a first control node and a second control node, a pull-up transistor electrically connected to the first input node and an output node of outputting a scan signal and turned on/off by the first control node, and a pull-down transistor electrically connected to the output node and a low-level voltage line and turned on/off by the second control node.

公开(公告)号：US20200211475A1

公开(公告)日：2020-07-02

申请号：US16726464

申请日：2019-12-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： GEUNJEONG PARK ,  Eunho Lee

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A driving controller includes an image conversion circuit configured to convert an image signal to an image data signal including active data and blank data, a still image determination circuit configured to output a flag signal of an active level when the image signal is a still image, an operation mode determination circuit configured to output an operation mode signal indicating a low frequency mode when the flag signal is the active level, and to output an operation mode signal indicating an image transition mode when the flag signal is changed from the active level and an inactive level, and a blank voltage determination circuit configured to output a blank voltage signal corresponding to a first gray scale during the low frequency mode, and a blank voltage signal corresponding to a second gray scale during the transition mode, wherein the blank data corresponds to the blank voltage signal.

公开(公告)号：US20180307369A1

公开(公告)日：2018-10-25

申请号：US15958449

申请日：2018-04-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： GEUNJEONG PARK ,  Yongjun Jang ,  Byungsun Kim ,  Ahyoung Son

IPC: G06F3/041 ,  G06F3/044 ,  G06K9/00

CPC classification number: H05K1/189 ,  H01L23/5387 ,  H01L25/0657 ,  H05K2201/10128 ,  H05K2201/10136 ,  H05K2201/10166

Abstract: A display device includes: a display panel including a display area in which a plurality of pixels are arranged to display images and a non-display area around the display area. A flexible printed circuit board is connected to the display panel and a driving integrated circuit is arranged on the flexible printed circuit board. A home integrated circuit is arranged on the driving integrated circuit and overlapping the driving integrated circuit.