Devices and method of adjusting synchronization signal preventing tearing and flicker
AssigneeSamsung Electronics Co., Ltd.
InventorsKyoung Man Kim, Jong Ho Roh
Life of this patent
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Abstract
A display controller includes a synchronization signal adjusting circuit, which adjusts at least one of the delay and the pulse width of a synchronization signal generated in a display driver and outputs an adjusted synchronization signal, and a transmission timing control circuit configured to control the transmission timing of display data, which will be transmitted to the display driver, in response to the adjusted synchronization signal.
Claims26
A display controller comprising:
- an adjusting circuit configured to adjust, based on information for adjusting a synchronization signal, at least one of the delay and the pulse width of the synchronization signal generated in a display driver and configured to output the adjusted synchronization signal;
- and
- a transmission timing control circuit configured to control the transmission timing of display data to be transmitted to the display driver, in response to the adjusted synchronization signal.
An image data processing system comprising:
- an adjusting circuit configured to adjust, based on information for adjusting the synchronization signal, at least one of the delay and the pulse width of a synchronization signal generated in a display driver and output an adjusted synchronization signal;
- and
- a display controller including a transmission timing control circuit configured to control the transmission timing of display data, which will be transmitted to the display driver, in response to the adjusted synchronization signal.
A method for processing display data of a portable device comprising:
- receiving a synchronization signal output from a display driver and which is related to transmission of display data;
- adjusting, based on information for adjusting the synchronization signal, at least one of the delay and the pulse width of the synchronization signal and generating an adjusted synchronization signal;
- adjusting the transmission timing of the display data in response to the adjusted synchronization signal and transmitting the transmission timing-adjusted display data to the display driver;
- and
- processing the timing-adjusted display data and displaying processed display data on a display.
A method for processing display data of a portable device comprising:
- detecting a mode change command in a CPU and transmitting a control signal corresponding to the detection result to a display driver;
- receiving a synchronization signal output from the display driver and related to transmission of display data;
- adjusting, based on information for adjusting the synchronization signal, at least one of the delay and the pulse width of the synchronization signal and generating the adjusted synchronization signal;
- adjusting the transmission timing of the display data in response to the adjusted synchronization signal and transmitting the transmission timing-controlled display data to the display driver;
- and
- processing the transmission timing-controlled display data and displaying processed display data on a display, wherein the synchronization signal is generated based on the control signal.
A display controller comprising:
- an adjusting circuit configured to receive a synchronization signal output from a display driver, wherein the synchronization signal is a signal related to the transmission of display data being transmitted from the display driver to a display,
- wherein the adjusting circuit is further configured to adjust, based on information for adjusting a synchronization signal, at least one of the delay and the pulse width of the synchronization signal generated in the display driver and configured to output the adjusted synchronization signal.
Dependencies are inferred from the claim text.