US 11,694,588 B2
Low power driving system and timing controller for display device
Nam Seok Seo, Daejeon (KR); Sea Ho Kim, Daejeon (KR); Hae Ju Kim, Daejeon (KR); Je Jin Myoung, Daejeon (KR); and Won Sik Chae, Daejeon (KR)
Assigned to SILICON WORKS CO., LTD., Daejeon (KR)
Filed by Silicon Works Co., Ltd., Daejeon (KR)
Filed on Dec. 15, 2020, as Appl. No. 17/122,320.
Claims priority of application No. 10-2019-0174759 (KR), filed on Dec. 26, 2019; and application No. 10-2020-0171019 (KR), filed on Dec. 9, 2020.
Prior Publication US 2021/0201739 A1, Jul. 1, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2310/08 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/023 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A low power driving system for a display device, comprising:
a timing controller configured to receive packet data for correcting a polarity of line data correct polarities of previous line data and current line data based on the packet data, divide a display pattern into a static pattern and a dynamic pattern based on a difference between the previous line data and the current line data, and transmit a packet to which one of first option information corresponding to the static pattern and second option information corresponding to the dynamic pattern is applied; and
a source driver configured to receive the packet and perform a low power mode corresponding to the static pattern based on the first option information or adaptive charge sharing corresponding to the dynamic pattern based on the second option information,
wherein the timing controller is further configured to:
calculate a power gain quantity and power loss quantity attributable to charge sharing for the current line data based on a result of a comparison between the previous line data and the current line data, and
provide the second option information on whether to apply charge sharing to the current line data based on a result of a comparison between the power gain quantity and the power loss quantity.