Method of driving display, display device, and source driver

1. A method for driving a display, the method comprising:

receiving and storing compressed and divided image frame data by a memory;

reading and decompressing the compressed and divided image frame data stored in the memory and forming decompressed data, by a decompressor;

scanning the decompressed data and outputting scan result data, by a block scanner;

storing the scan result data by a pattern buffer; and

displaying an image corresponding to the scan result data on the display by a pattern generator,

wherein the method further comprises:

providing an update flag signal in a first state by the memory if the memory receives the compressed and divided image frame data;

outputting a decompressor enable signal and a memory enable signal in response to the update flag signal in the first state, by the pattern generator;

activating the decompressor by the decompressor enable signal;

providing the update flag signal in a second state different from the first state by the memory if there is no image update; and

deactivating the decompressor while the update flag signal is in the second state.

2. The method of claim 1 , wherein the scanning the decompressed data comprises determining whether an image corresponding to the scan result data corresponds to a simple pattern.

3. The method of claim 2 , wherein the simple pattern shows black on the display.

4. The method of claim 2 , wherein the simple pattern is any one of i) a pattern showing predetermined figure and ii) a pattern showing a uniform color at any point on the display.

5. The method of claim 2 , wherein the displaying the image corresponding to the scan result data comprises alternately displaying the simple pattern and a non-simple pattern.

6. The method of claim 1 , wherein the scanning the decompressed data comprises determining whether an image corresponding to the scan result data corresponds to any one of predetermined simple patterns.

7. The method of claim 1 , wherein the scan result data includes:

a data of determining whether an image corresponding to the scan result data corresponds to a predetermined simple pattern; and

a data of classification of which one of a plurality of predetermined simple patterns corresponds to the image corresponding to the scan result data.

8. The method of claim 1 , wherein the displaying the image corresponding to the scan result data comprises:

generating and displaying an image corresponding to the scan result data stored by the pattern buffer; or

displaying an image corresponding to the scan result data among pre-stored images.