Claims
- 1. A method of displaying four color data on a three color display monitor comprising the steps of:
- providing a display controller including a color converter and at least three digital to analog converters on one integrated circuit;
- providing the four color data as four color digital pixel data;
- transforming the four color digital pixel data to digital three color pixel data in the color converter;
- converting the digital three color pixel data to analog data in the digital to analog converters;
- displaying the analog data on the monitor;
- providing a control signal for controlling display of individual pixels on the monitor;
- in response to the control signal displaying on a portion of the monitor a plurality of individual pixels each of which has been transformed to the three color pixel data; and
- displaying on a remaining portion of the monitor, color pixel data which has not been transformed.
- 2. The method of claim 1, wherein the step of transforming comprises the step of looking up values in a look-up table.
- 3. The method of claim 1, wherein the step of transforming is performed pixel by pixel at a video data rate.
- 4. The method of claim 1, further comprising the step of performing a brightness correction by a look up table relative to the particular display monitor on the digital three color data prior to the step of converting.
- 5. The method of claim 1, wherein the four color digital pixel data is 32 bits per pixel.
- 6. The method of claim 1, wherein the step of transforming includes the steps of:
- providing in the color converter connected transforming elements for serially transforming the four color digital pixel data in each transforming element so that as a particular transforming element completes a transformation, the particular transforming element receives additional data, thereby pipelining the step of transforming.
- 7. The method of claim 1, further comprising the step of storing the four color digital pixel data for further processing at the same time as the step of transforming.
- 8. The method of claim 1, wherein the portion of the monitor is a window, and the window is displayed on the monitor simultaneously with the color pixel data which has not been transformed.
- 9. A display controller for a three color display monitor comprising:
- means for providing four color serial data;
- means for arranging the four color serial data into at least 32 bits per pixel of the display monitor;
- look up table logic circuitry for transforming the at least 32 bits per pixel into three color digital data;
- digital to analog converters for converting the three color digital data into analog data;
- means for providing a control signal for controlling display of individual pixels on the monitor;
- means for displaying on a portion of the monitor in response to the control signal a plurality of individual pixels each of which has been transformed to the three color pixel data; and
- means for displaying on a remaining portion of the monitor, color display data which has not been transformed.
- 10. The device of claim 9, further comprising:
- three look up tables for correcting a brightness level relative to the particular display monitor of each of the three colors of the digital data, thereby correcting for inconsistencies in the particular display monitor.
- 11. The device of claim 11, wherein the look up table logic circuitry includes:
- a connected series of transforming elements each capable of transforming a data element and passing the transformed data element to a next transforming element in the series thereby pipelining transformation of a data element.
- 12. The device of claim 11, wherein at least one of the transforming elements is the look-up table.
- 13. The device of claim 11, wherein each transforming element transforms the data element in less than the time needed by the display monitor to process the data for one pixel.
- 14. The device of claim 9, further comprising means for storing the four color serial data as four color serial data.
- 15. The device of claim 9, wherein the portion of the monitor is a window, and the window is displayed on the monitor simultaneously with the color pixel data which has not been transformed.
Parent Case Info
This application is a continuation of application Ser. No. 07/550,272, filed Jul. 9 1990, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0188098 |
Jul 1986 |
EPX |
0209266 |
Jan 1987 |
EPX |
0338457 |
Oct 1989 |
EPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
550272 |
Jul 1990 |
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