公开(公告)号：US20240420622A1

公开(公告)日：2024-12-19

申请号：US18588799

申请日：2024-02-27

Applicant: Samsung Display Co., LTD.

Inventor： HEENDOL KIM ,  YONG-BUM KIM ,  BYUNGKIL JEON ,  JOONHO HYUN

IPC: G09G3/32

Abstract: A display device includes a driving controller which receives an image signal and a signal including a command for entering a low power mode, or a command for terminating the low power mode, and generates or receives a first synchronization signal and a second synchronization signal, a panel driver which operates in response to a control signal provided from the driving controller, and a display panel which is controlled by the panel driver. The panel driver includes a data driving circuit which provides a data signal to the display panel in synchronization with the first synchronization signal, and the driving controller changes the control signal by counting a clock of the second synchronization signal, when receiving the command for entering the low power mode or the command for terminating the low power mode.

公开(公告)号：US20240304145A1

公开(公告)日：2024-09-12

申请号：US18416559

申请日：2024-01-18

Applicant: Samsung Display Co., LTD.

Inventor： SUN-KOO KANG ,  JOONHO HYUN

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2044 ,  G09G2300/0819 ,  G09G2300/0823 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2330/023

Abstract: A display device includes a display panel receiving an emission driving signal, and a panel driver driving the display panel in a mode in which the driving frequency is varied. The panel driver includes an emission driving circuit outputting the emission driving signal, a data driving circuit outputting a data signal, and a driving controller. The data driving circuit inverts a polarity of the data signal in units of at least one driving frame in response to a first option signal. The driving controller includes a counting circuit which counts an operation cycle of the emission driving circuit to output a count value, and a first option control circuit which compares the count value with a preset first threshold value and sets the first option signal to an active state or an inactive state according to a comparison result.