Unlock instant, AI-driven research and patent intelligence for your innovation.

Fluorescent wheel, projection light source, projector and control method of projector

A fluorescent wheel and projector technology, which is applied in the parts of instruments, optics, and color TVs, etc., can solve the problems of high luminous efficiency, low color gamut and brightness luminous efficiency, and low color gamut.

Active Publication Date: 2017-02-22
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
View PDF15 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The fluorescent wheel in the prior art has a contradiction between color gamut and brightness (a high color gamut leads to low luminous efficiency, and a low color gamut leads to high luminous efficiency), which is an inherent problem in this field
In this way, if the projector meets the user's requirements for color gamut during use, it cannot meet the user's requirements for brightness, and if it meets the user's requirements for brightness, it cannot meet the user's requirements for color gamut.
[0004] In addition, since the color gamut of the fluorescent wheel in the prior art is fixed, the projector can only display high color gamut images or low color gamut images, and the display effect is not good

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
  • Fluorescent wheel, projection light source, projector and control method of projector
  • Fluorescent wheel, projection light source, projector and control method of projector
  • Fluorescent wheel, projection light source, projector and control method of projector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Provide a projector such as Figure 7 As shown, the projector includes the above-mentioned projection light source, and a first polarizer 40 , a second dichroic mirror 32 , and a third dichroic mirror 33 sequentially arranged on the optical path of the projection light source.

[0072] The second dichroic mirror 32 is used to reflect the first color light 01 and transmit the second color light 02; the third dichroic mirror 33 is used to reflect the third color light 03 and transmit the fourth color light 04; wherein, The third color light 03 and the fourth color light 05 are mixed to produce the second color light 02 .

[0073] The projector also includes an LCD chip 51 respectively arranged on the optical paths of the first color light 01, the third color light 03 and the fourth color light 04, and a beam combining mirror for combining the light emitted by the LCD chip 51 60 , and the second polarizer 44 and the polarizer 42 arranged between each LCD chip 51 and the b...

Embodiment 2

[0080] Provide a projector such as Figure 8 As shown, it includes a fluorescent wheel 10 that can be excited by blue light to emit yellow light, a first sub-light source 20 and a second sub-light source 21 that are used to emit blue light and are oppositely arranged, transmit blue light, reflect yellow light and are located in the first sub-light source. The first dichroic mirror 31 between the sub-light source 20 and the second sub-light source 21 , and a group of shaping optical elements 22 arranged on the side of the first dichroic mirror 31 away from the fluorescent wheel 10 . Wherein, the first sub-light source 20 , the second sub-light source 21 , and the first dichroic mirror 31 are located at one side of the reflection surface of the fluorescent wheel 10 . The optical axis of the shaping optical element 22 coincides with the central axis of the beam of white light synthesized from the yellow light and the blue light.

[0081] The projector also includes a polarizer 4...

Embodiment 3

[0085] Provide a projector such as Figure 9 As shown, it includes a fluorescent wheel 10 that can be excited by blue light to emit yellow light, a first sub-light source 20 and a second sub-light source 21 that are used to emit blue light and are oppositely arranged, transmit blue light, reflect yellow light and are located in the first sub-light source. The first dichroic mirror 31 between the sub-light source 20 and the second sub-light source 21 , and a group of shaping optical elements 22 arranged on the side of the first dichroic mirror 31 away from the fluorescent wheel 10 . Wherein, the first sub-light source 20 , the second sub-light source 21 , and the first dichroic mirror 31 are located at one side of the reflection surface of the fluorescent wheel 10 . The optical axis of the shaping optical element 22 coincides with the central axis of the beam of white light synthesized from the yellow light and the blue light.

[0086] The projector also includes a polarizatio...

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 provides a fluorescent wheel, a projection light source, a projector and a control method of the projector, and relates to the technical field of display. The display effect can be improved. The fluorescent wheel comprises a substrate with a reflecting surface and a fluorescent layer arranged on the reflecting surface of the substrate; and the fluorescent layer comprises at least one high color gamut area and at least one low color gamut area. The fluorescent wheel is used for image display.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a fluorescent wheel, a projection light source, a projector and a control method thereof. Background technique [0002] In a projector structure, a fluorescent wheel is generally used to excite light incident on the fluorescent wheel from a light source to generate a desired color light sequence. [0003] The fluorescent wheel in the prior art has a contradiction between color gamut and brightness (a high color gamut means low luminous efficiency, and a low color gamut means high luminous efficiency), which is an inherent problem in this field. In this way, if the projector meets the user's requirement for color gamut during use, it cannot meet the user's requirement for brightness, and if it meets the user's requirement for brightness, it cannot meet the user's requirement for color gamut. [0004] In addition, since the color gamut of the fluorescent wheel in the prior art is...

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): G03B21/20
CPCG03B21/2013G03B21/204H04N9/3158H04N9/3182G03B21/2066G03B21/006G03B21/008H04N9/3111H04N9/3164H04N9/3167H04N9/317
Inventor 董慧
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD