Light Source Device And Projection Display Device
AssigneesHisense Co., Ltd., Hisense USA Corporation, Hisense International Co., Ltd.
InventorsFei Zhao, Wei Li, Xianrong Liu
Life of this patent
Estimating the term…
Abstract
The disclosure discloses a light source device and a projection display device. The light source device includes a laser for generating laser light, a fluorescent wheel, a filter wheel and a control unit, wherein the fluorescent wheel includes at least one reflection section, and at least one transmission section capable of transmitting the laser light; and at least one phosphor capable of being excited by the laser light to emit yellow light, and at least one phosphor capable of being excited by the laser light to emit green light are attached on the surface of the reflection section; the filter wheel includes at least one transparent section, at least one red filter section and at least one green filter section.
Claims20
A light source device, comprising a laser for generating laser light, a fluorescent wheel, a filter wheel and a control unit, wherein:
- the fluorescent wheel comprises at least one reflection section, and at least one transmission section capable of transmitting the laser light;
- and at least one phosphor capable of being excited by the laser light to emit yellow light, and at least one phosphor capable of being excited by the laser light to emit green light are attached on the surface of the reflection section;
- the filter wheel comprises at least one transparent section, at least one red filter section and at least one green filter section;
- and
- the control unit is configured to control the fluorescent wheel and the filter wheel to rotate in synchronization, so that the transparent section of the filter wheel corresponds to the transmission section of the fluorescent wheel, and a part of the phosphor, on the fluorescent wheel, excited by the laser light to emit the yellow light, the red filter section of the filter wheel corresponds to another part of the phosphor, on the fluorescent wheel, excited by the laser light to emit the yellow light, and the green filter section of the filter wheel corresponds to the phosphor, on the fluorescent wheel, excited by the laser light to emit the green light.
A projection display device, comprising a light source device comprising a laser for generating laser light, a fluorescent wheel, a filter wheel and a control unit, wherein:
- the fluorescent wheel comprises at least one reflection section, and at least one transmission section capable of transmitting the laser light;
- and at least one phosphor capable of being excited by the laser light to emit yellow light, and at least one phosphor capable of being excited by the laser light to emit green light are attached on the surface of the reflection section;
- the filter wheel comprises at least one transparent section, at least one red filter section and at least one green filter section;
- and
- the control unit is configured to control the fluorescent wheel and the filter wheel to rotate in synchronization, so that the transparent section of the filter wheel corresponds to the transmission section of the fluorescent wheel, and a part of the phosphor, on the fluorescent wheel, excited by the laser light to emit the yellow light, the red filter section of the filter wheel corresponds to another part of the phosphor, on the fluorescent wheel, excited by the laser light to emit the yellow light, and the green filter section of the filter wheel corresponds to the phosphor, on the fluorescent wheel, excited by the laser light to emit the green light.
A light source device, comprising a laser for generating laser light, a fluorescent wheel, filter wheel and a control unit, wherein:
- the fluorescent wheel comprises at least one reflection section, and at least one transmission section capable of transmitting the laser light;
- and at least one phosphor capable of being excited by the laser light to emit light in a first band, and at least one phosphor capable of being excited by the laser light to emit light in a second band are attached on the surface of the reflection section;
- the filter wheel comprises at least one transparent section, at least one first filter section and at least one second filter section;
- and
- the control unit is configured to control the fluorescent wheel and the filter wheel to rotate in synchronization, so that the transparent section of the filter wheel corresponds to the transmission section of the fluorescent wheel, and a part of the phosphor, on the fluorescent wheel, excited by the laser light to emit the light in the first band, the first filter section of the filter wheel corresponds to another part of the phosphor, on the fluorescent wheel, excited by the laser light to emit the light in the first band, and the second filter section of the filter wheel corresponds to the phosphor, on the fluorescent wheel, excited by the laser light to emit the light in the second band.
Dependencies are inferred from the claim text.