US 12,136,372 B2
Timing controller for low power driving a display device using charge sharing based on pixel arrangement
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. 16, 2022, as Appl. No. 18/083,448.
Application 18/083,448 is a continuation in part of application No. 17/122,320, filed on Dec. 15, 2020, granted, now 11,694,588.
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 2023/0120995 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2310/027 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/08 (2013.01); G09G 2320/103 (2013.01); G09G 2330/021 (2013.01); G09G 2370/10 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display device for low power driving, comprising:
a timing controller configured to:
divide a display pattern into a static pattern and a dynamic pattern based on a difference between previous line data and 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 configured to:
receive polarity information corresponding to a physical arrangement pattern of pixels of a display panel and corrects polarities of the previous line data and the current line data using the polarity information based on the physical arrangement pattern of pixels,
determine whether to apply charge sharing to the current line data based on a result of a comparison between a power gain quantity and a power loss quantity,
calculate the power gain quantity and the 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 based on determining to apply charge sharing to the current line data.