US 12,081,776 B2
Display driver circuit supporting operation in a low power mode of a display device
Woojoo Kim, Seoul (KR); and Seongmin Cheon, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 28, 2022, as Appl. No. 18/050,515.
Application 18/050,515 is a continuation of application No. 17/060,127, filed on Oct. 1, 2020, granted, now 11,496,753.
Application 17/060,127 is a continuation of application No. 16/150,365, filed on Oct. 3, 2018, granted, now 10,834,411, issued on Nov. 10, 2020.
Claims priority of application No. 10-2018-0033421 (KR), filed on Mar. 22, 2018.
Prior Publication US 2023/0083748 A1, Mar. 16, 2023
Int. Cl. H04N 19/184 (2014.01); H04N 19/156 (2014.01); H04N 19/426 (2014.01)
CPC H04N 19/184 (2014.11) [H04N 19/156 (2014.11); H04N 19/428 (2014.11)] 10 Claims
OG exemplary drawing
 
1. A display driver circuit configured to drive a display panel, the display driver circuit comprising:
a memory configured to store image data including first data from outside of the display driver circuit and second data from a controller circuit;
a decoder circuit configured to generate first color data by decoding the first data in the memory;
the controller circuit configured to generate second color data based on the second data in the memory; and
a source driver circuit configured to output a driving signal based on the first color data or the second color data;
wherein, in a first mode, the first color data are provided to the source driver circuit, and in a second mode, the second color data are provided to the source driver circuit without being decoded by the decoder circuit,
wherein, when the first mode is switched to the second mode, the first color data is same as the second color data, and
wherein in the second mode, the controller circuit is further configured to control the decoder circuit such that the decoder circuit does not operate.