Color temperature correction method and projection system using same

A correction method and projection system technology, applied in the field of color temperature correction, can solve problems such as color coordinate deviation, achieve the effect of ensuring saturation and vividness, and ensuring accuracy

Inactive Publication Date: 2010-02-10
HISENSE VISUAL TECH CO LTD
View PDF1 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the calculated color coordinates will be different from the actual color coordinates, which will lead to deviations in the final corrected color coordinates

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Color temperature correction method and projection system using same
  • Color temperature correction method and projection system using same
  • Color temperature correction method and projection system using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] Such as image 3 As shown, the projector of the present invention includes an optical machine 1, an optical-mechanical driving device 2, a calibration device 3, a first storage unit 5 and a second storage unit 6, and the testing device 4 can be arranged in the projector or separated from the projector. set up. The optical machine 1 here can also be subdivided into optical modules, DMDs and lenses. Each receiving channel of the projector (including VGA, DVI, video, HDMI, high-definition, etc.) is an input channel of the projector, which directly outputs the picture to the optical machine 1, and displays the image through the optical machine 1.

[0025] In a preferred embodiment of the present invention, each input terminal of the projector receives the input of an external signal source (such as a TV station signal, a DVD signal...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a color temperature correction method comprising the following steps: presetting white field target color coordinates and target gain values in a ray machine; receiving an input signal of each input end by the ray machine; measuring color coordinates of colors of the input signals and white field sample color coordinates by a measuring device; comparing the white field sample color coordinates with the white field target color coordinates; and regulating values of the white field sample color coordinates to be consistent with values of the white field target color coordinates. The invention also relates to a projection system using the color temperature correction method.

Description

technical field [0001] The invention relates to a color temperature correction method, which can effectively reduce the operation complexity of color temperature correction without losing the brightness of the base color, and ensure the accuracy and consistency of the white field color temperature, and maintain the vividness of the picture. Calibration method of the projector device. Background technique [0002] Projectors are divided into household projectors and commercial projectors. Commercial projectors generally display text information, so they have relatively low requirements for color and high requirements for brightness. In this way, even without color correction, home projectors have higher requirements on color and image quality, so the correction of color temperature, especially the correction of white color temperature, is more important. [0003] White point is also called white balance, which refers to the situation where red, green and blue are used to res...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00H04N9/31H04N9/73
Inventor 董玉珍
Owner HISENSE VISUAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap