Display driving circuit, display device including the same, and method of driving display device
AssigneeSamsung Display Co., Ltd.
InventorsHyun Chang Kim, Se Byung Chae
Life of this patent
Estimating the term…
Abstract
A display driving circuit includes a clock signal generator which generates a clock signal at a frequency in response to a frequency control signal, a frequency variation determiner which adaptively changes a frequency variation of the clock signal, based on a magnitude of a deviation between the frequency of the clock signal and a target frequency calculated based on a reference clock signal supplied from the outside, and a frequency controller which generates the frequency control signal which updates the frequency of the clock signal, based on the frequency variation, and provides the frequency control signal to the clock signal generator.
Claims16
An electronic device comprising:
- a processor configured to generate a reference clock signal;
- and
- a frequency controller which generates a frequency control signal which updates a frequency of a clock signal, based on a frequency variation of the clock signal,
- wherein the frequency variation of the clock signal is determined based on the frequency of the clock signal and a target frequency derived from the reference clock signal, and
- wherein the frequency variation of the clock signal is decreased as a frame elapses until the frequency of the clock signal reaches the target frequency.
An electronic device comprising:
- a processor configured to generate a reference clock signal;
- and
- a frequency controller which generates a frequency control signal which updates a frequency of a clock signal, based on a frequency variation of the clock signal,
- wherein the frequency variation of the clock signal is determined based on the frequency of the clock signal and a target frequency derived from the reference clock signal, and a first frequency change is larger thana second frequency change, which is performed after the first frequency change.
An electronic device comprising:
- a processor configured to generate a reference clock signal;
- and
- a frequency controller which generates a frequency control signal which updates a frequency of a clock signal, based on a frequency variation of the clock signal,
- wherein, in at least one frequency change, the frequency variation of the clock signal is determined based on a frequency deviation as a deviation between a current frequency of the clock signal and a target frequency derived from the reference clock signal and at least one of predetermined reference deviations,
- wherein the frequency variation of the clock signal is decreased as a frame elapses until the frequency of the clock signal reaches the target frequency.
Dependencies are inferred from the claim text.