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US 10,255,890 B2Granted
Display controller for reducing display noise and system including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsBo Young Kim, Min Chul Kim, Hong Sik Park
Life of this patent
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Abstract
A display controller for reducing display noise includes a memory configured to store frame data including M-lines of data, where M is an integer of at least 2; a data size controller configured to variably adjust a size of data transmitted to the display device; and a display driving circuit configured to read data corresponding to the data size from the memory and transmit the data to the display device.
Claims20
A display controller for controlling a display device, the display controller comprising:
- a memory configured to store frame data comprising M-lines of data, where M is an integer of at least 2;
- a data size controller configured to variably adjust a size of data transmitted to the display device during each of multiple transmission periods providing data of a same display frame;
- and
- a display driving circuit configured to read an amount of data corresponding to the size of data from the memory and transmit read data to the display device, wherein:
- the data size controller is configured to randomly change an assigned number of lines, and
- the display driving circuit reads, for each of the multiple transmission periods providing the data of the same display frame, a number of lines of data from the memory identified by the assigned number of lines and transmits read lines of data to the display device.
3 more elements
An electronic system comprising:
- a display device including a display driver configured to control an operation of a display panel;
- and
- a System-on-Chip (SoC) including a display controller configured to control the display device, wherein the display controller comprises:
- a memory configured to store frame data comprising M-lines of data, where M is an integer of at least 2;
- a data size controller configured to variably adjust a size of data transmitted to the display device during each of multiple transmission periods providing data of a same display frame;
- and
- a display driving circuit configured to read an amount of data corresponding to the size of data from the memory and transmit read data to the display device, wherein:
- the data size controller comprises a random line generator configured to randomly change an assigned number of lines for each of the multiple transmission periods providing the data of the same display frame, and
- the display driving circuit reads, for each of the multiple transmission periods providing the data of the same display frame, a number of lines of data from the memory identified by the assigned number of lines for the respective transmission period and transmits read lines of data to the display device.
6 more elements
A display controller comprising:
- a display driving circuit that transfers a predetermined number of lines of data from a memory to a display device in each of a plurality of first transmission periods providing data of a first display frame of data and each of a plurality of second transmission periods providing data of a second display frame of data, each of the first and second transmission periods alternating with an idle period in which no line of data is transferred from the memory to the display device, and each of the lines of data corresponding to a display line of the display device for one of the first and second display frames of data;
- and
- a data size controller that sets the predetermined number of lines of data to a first value for one of the first transmission periods and sets the predetermined number to a second value, greater than the first value, for another of the first transmission periods.
Dependencies are inferred from the claim text.