Method and apparatus for adjusting display colors of a projector

1 . A method for adjusting the display color of a projector, comprising the steps of:

selecting a pivot color point from a plane area within a color space; and

adjusting the color temperature of the projector by using a color coordinate adjustment technique according to the pivot color point.

2 . The method of claim 1 , wherein the projector is a digital light-processing projector.

3 . The method of claim 1 , wherein the color space comprises a CIE chromaticity diagram and the plane area is a portion of the CIE chromaticity diagram.

4 . The method of claim 1 , wherein the pivot color point comprises a white display color.

5 . The method of claim 1 , further comprising the step of:

providing auxiliary lines on the plane area to serve as a reference for selecting the pivot color point.

6 . The method of claim 5 , wherein the auxiliary lines comprise a plurality of isothermal lines, and each isothermal line represents a color temperature value.

7 . The method of claim 6 , wherein the isothermal lines have corresponding labeled color temperature coordinate values.

8 . The method of claim 1 , further comprising the step of:

providing coordinate values on the plane area to serve as a reference for selecting the pivot color point.

9 . The method of claim 1 , further comprising the step of:

providing at least an auxiliary color point on the plane area to serve as a reference for selecting the pivot color point.

10 . The method of claim 9 , wherein the color temperature values of the auxiliary color points are different.

11 . The method of claim 9 , wherein the auxiliary color points comprise a first auxiliary color point, a second auxiliary color point and a third auxiliary color point so that the first and the second auxiliary color points are respectively of a high color temperature and a low color temperature, and the third auxiliary color point is a color point of NTSC specification.

12 . An apparatus for adjusting the display color of a projector, comprising:

an input unit for displaying a plane area within a color space so that a user can select a pivot color point from the plane area; and

an adjusting unit for adjusting the color temperature of the projector using a color coordinate adjustment technique according to the pivot color point.

13 . The apparatus of claim 12 , wherein the projector is a digital light-processing projector.

14 . The apparatus of claim 12 , wherein the color space comprises a CIE chromaticity diagram and the plane area is a portion of the CIE chromaticity diagram.

15 . The apparatus of claim 12 , wherein the pivot color point comprises a white display color.

16 . The apparatus of claim 12 , wherein the input unit further provides auxiliary lines on the plane area to serve as a reference for selecting the pivot color point.

17 . The apparatus of claim 16 , wherein the auxiliary lines comprise a plurality of isothermal lines and each isothermal line represents a color temperature value.

18 . The apparatus of claim 17 , wherein the isothermal lines have corresponding labeled color temperature coordinate values.

19 . The apparatus of claim 12 , wherein the input unit further provides coordinate values on the plane area to serve as a reference for selecting the pivot color point.

20 . The apparatus of claim 12 , wherein the input unit further provides at least an auxiliary color point on the plane area to serve as a reference for selecting the pivot color point.

21 . The apparatus of claim 20 , wherein the color temperature values of the auxiliary color points are different.

22 . The apparatus of claim 20 , wherein the auxiliary color points comprise a first auxiliary color point, a second auxiliary color point and a third auxiliary color point so that the first and the second auxiliary color points are respectively of a high color temperature and a low color temperature and the third auxiliary color point is a color point of NTSC specification.