Samsung Electronics Co., Ltd.

Hak-Seong Lee

Hyo Jin Kim

Sang Kyu Lee

Hyun-Chul Lee

Jong Seon Kim

Chi Ho Cha

Hyon Jun Choi

Seung Jin In

Hyo-Jin Kim

Seung-Gun Lee

A mobile device includes a display driver integrated circuit (DDI), a display panel, and an application processor. The DDI provides an internal synchronization signal based on an internal clock signal as a synchronization signal. The application processor calculates a time offset corresponding to a difference between a real time and the internal synchronization signal, and provides the time offset to the DDI. The DDI calculates a time to be displayed based on the time offset and a current time provided from the application processor, and displays the time to be displayed in the display panel in a self clock display mode.

Display device and mobile electronic apparatus including the same

An operation method of a display driver includes generating a count value by counting a period of a synchronization signal related to a synchronization packet received from a host, receiving a mode change command from the host, the mode change command indicating a change from a video mode transmitting first image data to a display by bypassing a frame memory to a command mode transmitting second image data to the display through the frame memory, and generating an internal synchronization signal having a period substantially equal to the period of the synchronization signal by using the count value based on the mode change command after a last pulse of the synchronization signal is generated. A time interval between the last pulse and a first pulse of the internal synchronization signal is equal to the period of the synchronization signal.

Display driver, operating method thereof, host for controlling the display driver, and system having the display driver and the host

Growing community of inventors

Hwaseong-si, South Korea

Hak-Seong Lee