US 11,727,848 B2
Display device, method of receiving image data and command data, and method of transferring image data and command data
Hae-Kwan Seo, Hwaseong-si (KR); Dong-Wook Choi, Hwaseong-si (KR); and Se Ja Chul Hwang, Suwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jul. 23, 2020, as Appl. No. 16/936,728.
Claims priority of application No. 10-2019-0175607 (KR), filed on Dec. 26, 2019.
Prior Publication US 2021/0201746 A1, Jul. 1, 2021
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2059 (2013.01) [G09G 2330/08 (2013.01); G09G 2370/04 (2013.01); G09G 2370/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel comprising a plurality of pixels; and
a panel driver configured to receive input data, and to drive the display panel based on the input data,
wherein the panel driver comprises:
a partial still image detector configured to detect a still image data portion in the input data by determining whether at least a portion of the input data represents a still image; and
a command decoder configured to extract command data from the input data that comprises the command data and the still image data portion by decoding the still image data portion in which the command data are encoded,
wherein, when the portion of the input data in a second frame is the same as the portion of the input data in a first frame, the partial still image detector detects the portion of the input data as the still image data portion,
wherein the panel driver is configured to receive the input data comprising the still image data portion in which the command data are encoded in a third frame, and
wherein, to decode the still image data portion in which the command data are encoded, the command decoder is configured to calculate a difference between the still image data portion in the second frame and the still image data portion in the third frame.