公开(公告)号：US10438526B2

公开(公告)日：2019-10-08

申请号：US15215803

申请日：2016-07-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yang Hyo Kim ,  Do Kyung Kim ,  Soo Young Woo

IPC: G09G5/02 ,  G09G3/20

Abstract: A display driver and a display device and system including the same are provided. The display driver includes an interface circuit configured to receive image data from a host; a graphics memory configured to store m-bit data per pixel corresponding to the received image data, where m being an integer greater than zero; a color converter configured to convert the m-bit data per pixel stored in the graphics memory into n-bit data per pixel and to output n-bit converted data, n being an integer greater than m; a selector configured to selectively output one among the n-bit converted data and the image data received from the host; and a source driver configured to drive a display panel based on output data of the selector.

公开(公告)号：US09905193B2

公开(公告)日：2018-02-27

申请号：US14329207

申请日：2014-07-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hee Tae Oh ,  Dong Hwy Kim ,  Do Kyung Kim

IPC: G09G5/00 ,  G06F3/14

CPC classification number: G09G5/006 ,  G06F3/14 ,  G09G2360/18

Abstract: A display driver integrated circuit (DDI) for driving a display of image data on a display panel, an application processor (AP), a system including the DDI and the AP, and methods of operating the same are provided. The application processor includes: a controller configured to obtain a frequency of a data transmission timing control received from a display driver integrated circuit (DDI), and to generate, based on the obtained frequency, a frequency control signal for adjusting a frequency related to an operating clock signal for the DDI; a transmitter configured to transmit the generated frequency control signal to the DDI; and a frequency calculation circuit including: a detector configured to receive the data transmission timing control signal from the DDI, and a frequency calculator configured to calculate a frequency of the received data transmission timing control signal.