Low power driving system and timing controller for display device
AssigneeSilicon Works Co., Ltd.
InventorsNam Seok Seo, Sea Ho Kim, Hae Ju Kim, Je Jin Myoung, Won Sik Chae
Life of this patent
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Abstract
Disclosed are a low power driving system and timing controller for a display device. The low power driving system for a display device may include a timing controller configured to transmit a packet to which one of first option information corresponding to a static pattern or second option information corresponding to a dynamic pattern is applied, and a source driver configured to receive the packet and to 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.
Claims14
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 based on a packet type of a source driver, 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.
A timing controller for a display device, comprising:
- a pixel value storage configured to store previous line data and current line data and provide the previous line data and the current line data for mapping;
- a packet receiver configured to receive a packet type of a source driver and packet data for correcting a polarity of line data based on the packet type;
- a packet mapper configured to map information on the polarity of the line data based on the packet type and the packet data;
- a pixel value correction unit configured to correct information on polarities of the previous line data and the current line data based on the information on the polarity;
- an operation unit configured to receive the previous line data and the current line data from the pixel value correction unit and 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 or calculate a first maximum change in an output of the source driver in which charge sharing is applied to the current line data and a second maximum change in the output of the source driver in which charge sharing is not applied to the current line data;
- and
- an option information providing unit configured to provide second option information on whether to apply the charge sharing to the current line data based on a result of a comparison between the power gain quantity and the power loss quantity, if a display pattern is a dynamic pattern and to provide, as first option information, one change selected from the first maximum change and the second maximum change depending on whether to apply the charge sharing to the previous line data, if the display pattern is a static pattern.
Dependencies are inferred from the claim text.