公开(公告)号：US12094427B2

公开(公告)日：2024-09-17

申请号：US18479683

申请日：2023-10-02

Applicant: SILICON WORKS CO., LTD.

Inventor： Hyun Kyu Jeon ,  Ji Won Lee ,  Jung Eun Baek ,  Xin Cui ,  Do Hoon Lee

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/064 ,  G09G2320/0646

Abstract: An embodiment enables natural and smooth change in the brightness of a backlight unit and is able to reduce flicker by changing a dimming value between frames through a mixed function including a plurality of functions having different characteristics.

公开(公告)号：US11810523B2

公开(公告)日：2023-11-07

申请号：US17235049

申请日：2021-04-20

Applicant: SILICON WORKS CO., LTD.

Inventor： Hyun Kyu Jeon ,  Ji Won Lee ,  Jung Eun Baek ,  Xin Cui ,  Do Hoon Lee

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/064 ,  G09G2320/0646

Abstract: An embodiment enables natural and smooth change in the brightness of a backlight unit and is able to reduce flicker by changing a dimming value between frames through a mixed function including a plurality of functions having different characteristics.

公开(公告)号：US11361718B2

公开(公告)日：2022-06-14

申请号：US17122344

申请日：2020-12-15

Applicant: SILICON WORKS CO., LTD.

Inventor： Ji Won Lee ,  Jung Eun Baek ,  Xin Cui ,  Do Hoon Lee

IPC: G09G3/34 ,  G06T7/11

Abstract: An image processing device reduces power consumption of a backlight by lowering a dimming value through brightness distribution for pixels. The image data processing device includes: an image analyzing circuit configured to analyze original image data on a video image divided into a plurality of regions and calculate a representative brightness value for each region; a dimming value calculating circuit configured to calculate a dimming value for each region in order to adjust the brightness of a backlight according to the representative brightness value; a pixel analyzing circuit configured to analyze brightness distribution for a plurality of pixels in each region; a dimming control circuit configured to re-adjust the dimming value for one region according to the brightness distribution; and a dimming output circuit configured to output, to a backlight driving device, a dimming control signal for driving the backlight according to the dimming value.