Image data processing apparatus and image data processing method

• US 20070008277A1
• Filed: 04/14/2006
• Published: 01/11/2007
• Est. Priority Date: 07/08/2005
• Status: Abandoned Application

• Current Assignee: Toshiba Matsushita Display Technology Co Ltd (Japan Display Incorporated), Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Toshiba Matsushita Display Technology Co Ltd (Japan Display Incorporated), Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Miyatake, Masaki, Itoh, Goh, Baba, Masahiro, Okumura, Haruhiko
• Application Number:
  US11/403,983
• Publication Number:
  US 20070008277A1
• Time in Patent Office: Days
• US Class Current: 345/104
• CPC Class Codes: G09G 2310/027 Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
• CPC Class Codes: G09G 2310/0297 Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
• CPC Class Codes: G09G 2330/06 Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
• CPC Class Codes: G09G 2340/02 Handling of images in compressed format, e.g. JPEG, MPEG
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers
• CPC Class Codes: G09G 3/3688 suitable for active matrices only
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04

Abstract

An image data processing apparatus divides image data into a plurality of pixel data including a set of pixel data corresponding to a set of signal lines of a display device selectively controlled by an element, and stores the divided image data. Corresponding to one of the divided plurality of image data, one of the stored plurality of pixel data is selected to generate differential data.

Claims

1. An image data processing apparatus, comprising:

a dividing unit configured to divide image data including a plurality of pixel data into the plurality of pixel data including a set of pixel data corresponding to a set of signal lines of a display device selectively controlled by an element;

a storing unit configured to store the plurality of pixel data divided by the dividing unit;

a selecting unit configured to select a first pixel data from the plurality of pixel data stored by the storing unit corresponding to a second pixel data included in the plurality of pixel data divided by the dividing unit; and

a differentiating unit configured to generate differential data from the first pixel data selected by the selecting unit and the second pixel data included in the plurality of pixel data divided by the dividing unit.

2. The image data processing apparatus as set forth in claim 1, further comprising:

a reproducing unit configured to reproduce pixel data from the differential data generated by the differentiating unit;

the display device having a plurality of signal lines including a plurality of sets of signal lines, a plurality of scan lines, and a plurality of pixels driven by the plurality of signal lines and the plurality of scan lines; and

a plurality of elements, each of which controls selectively each set of signal lines included in a plurality of signal lines based on the pixel data reproduced by the reproducing unit.

3. The image data processing apparatus as set forth in claim 2,

wherein the first pixel data and the second pixel data are corresponding to one of a same set of signal lines and adjacent sets of signal lines.

4. The image data processing apparatus as set forth in claim 2,

wherein the plurality of pixels display a plurality of colors.

5. The image data processing apparatus as set forth in claim 4,

wherein the first pixel data and the second pixel data are corresponding to a same color displayed by pixels.

6. The image data processing apparatus as set forth in claim 2,

wherein said element controls selectively the set of signal lines in an order according to the plurality of scan lines.

7. The image data processing apparatus as set forth in claim 2,

wherein the element controls selectively the set of signal lines in a first order or in a second order in inverse to the first order according to the plurality of scan lines.

8. The image data processing apparatus as set forth in claim 2,

wherein said selecting unit selects the first pixel data based on a number of signal lines within the set of the signal lines.

9. The image data processing apparatus as set forth in claim 2,

wherein said selecting unit selects the first pixel data based on an order of selectively controlling of the set of signal lines by the element.

10. The image data processing apparatus as set forth in claim 2, further comprising:

a bit number changing unit configured to change the number of bits of the generated differential data,

wherein said reproducing unit reproduces pixel data from the differential data in which the number of bits is changed by the bit number changing unit.

11. An image data processing method, comprising:

dividing image data including a plurality of pixel data into the plurality of pixel data including a set of pixel data corresponding to a set of signal lines of a display device selectively controlled by an element;

storing the divided plurality of pixel data;

selecting a first pixel data from the stored plurality of pixel data corresponding to a second pixel data included in the divided plurality of pixel data; and

generating differential data from the first pixel data and the second pixel data.

12. The image data processing method as set forth in claim 11, further comprising:

reproducing pixel data from the generated differential data;

controlling selectively the set of signal lines of the display by the element based on the reproduced pixel data, wherein the display device has a plurality of signal lines including a plurality of sets of signal lines, a plurality of scan lines, and a plurality of pixels driven by the plurality of signal lines and the plurality of scan lines.

13. The image data processing method as set forth in claim 12,

wherein the first pixel data and the second pixel data are corresponding to one of a same set of signal lines and adjacent sets of signal lines.

14. The image data processing method as set forth in claim 12,

wherein the plurality of pixels display a plurality of colors.

15. The image data processing method as set forth in claim 14,

wherein the first pixel data and the second pixel data corresponding to a same color displayed by pixels.

16. The image data processing method as set forth in claim 12,

wherein said controlling includes controlling selectively the set of signal lines in an order according to the plurality of scan lines.

17. The image data processing method as set forth in claim 12,

wherein said controlling includes controlling selectively the set of signal lines in a first order or in a second order in inverse to the first order according to the plurality of scan lines.

18. The image data processing method as set forth in claim 12,

wherein said selecting includes selecting the first pixel data based on a number of signal lines within the set of the signal lines.

19. The image data processing method as set forth in claim 12,

wherein said selecting includes selecting the first pixel data based on an order of controlling selectively signal lines in said controlling.

20. The image data processing method as set forth in claim 12, further comprising:

changing the number of bits of the generated differential data,

wherein said reproducing includes reproducing pixel data from the differential data in which the number of bits is changed.