Method for adjusting color and projection device

Abstract

The invention provides a method for adjusting a color and a projection device. The method comprises the steps of determining first target projection brightness of a first color in a plurality of colors required by a picture needed to be projected, wherein a plurality of first color sections are defined by a first color region of a fluorescent pink wheel; determining first actual projection brightness of the first color; judging whether difference between the first actual projection brightness and the first target projection brightness lies within a first preset range or not; taking the first actual projection brightness as first color projection brightness when the difference lies within the first preset range; judging whether a first parameter reaches a first maximum limit value or not when the difference does not lie within the first preset range; adjusting the first parameter when the first parameter does not reach the first maximum limit value, and returning to the step of determining the first actual projection brightness of the first color; and adjusting the projection brightness of other color regions on the fluorescent pink wheel according to the first color projection brightness so as to achieve white balance.

Description

Technical field [0001] The present invention relates to the field of projection devices, in particular to a method for adjusting colors and a projection device. Background technique [0002] When the projector uses the fluorescent pink wheel to project an image, the uneven distribution of the phosphor causes the projector to have inconsistent reflection levels, which in turn causes the color of the projected image to be abnormal. In addition, the reflected brightness of the light source hitting the fluorescent pink wheel is nonlinear, which will cause the color of the projected image to be abnormal. In addition, the weakening of the light source over time can also cause the color of the projected image to be abnormal. Therefore, it is necessary to propose a color adjustment method so that when the color of the projected image is abnormal, adjustment can be made to ensure the color of the projected image. Summary of the invention [0003] The object of the present invention is to...

AI Technical Summary

Problems solved by technology

[0002] When the projector uses the fluorescent pink wheel to project an image, the projector will cause inconsistent reflection due to the uneven distribution of phosphor powder, which will cause abnormal color of the projected image

In addition, the reflection brightness of the light source hitting the fluorescent pink wheel is nonlinear, which will cause abnormal color of the projected image

In addition, as the light source weakens over time, the color of the projected image will also be abnormal

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