CN202548516U - Projection display device with wide-color-gamut compound light source - Google Patents
Projection display device with wide-color-gamut compound light source Download PDFInfo
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- CN202548516U CN202548516U CN201220196138XU CN201220196138U CN202548516U CN 202548516 U CN202548516 U CN 202548516U CN 201220196138X U CN201220196138X U CN 201220196138XU CN 201220196138 U CN201220196138 U CN 201220196138U CN 202548516 U CN202548516 U CN 202548516U
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Abstract
The utility model relates to a projection display device with a wide-color-gamut compound light source, which supplies light energy to projection equipment through a compound light source composed of a low-power laser device and a high-pressure mercury lamp. A projection display system adopting the projection display device has the characteristics of wide color gamut, low cost and compatibility with the present imaging light path. The projection display device comprises the compound light source composed of a high-pressure mercury lamp light source and a laser light source; the light rays of the two light sources are together sent to a dichroic mirror III, an integral bar and an imaging light path which are arranged in turn; the laser light source is composed of a red laser device, a green laser device and a blue laser device; the red laser of the red laser device is reflected to a dichroic mirror I through a reflector; the green laser of the green laser device also enters into the dichroic mirror I and is sent to a dichroic mirror II together with the red laser; and then the blue laser of the blue laser device is also sent to the dichroic mirror II; and the blue laser, the red laser and the green laser are together sent to the dichroic mirror III.
Description
Technical field
The utility model discloses a kind of television projection and show the field, particularly a kind of wide cheaply colour gamut composite light source projection display equipment.
Background technology
The tradition projection device with high-pressure sodium lamp as light source, the spectral width of display primary, colour gamut is less, only can cover the color of nature 40%; As light source, the primary colours spectrum of demonstration is extremely narrow with red, green, blue laser, can improve the color characteristics of Projection Display and display device greatly, can make to show that colour gamut reaches more than 90% of human eye, and color is more natural.Therefore red, green, blue laser is that the laser display system of light source has the advantages that primary colours spectrum is narrow, Show Color is gorgeous, colour gamut is broad, is the major progress in demonstration field.But powerful laser instrument price is very expensive, causes the cost of laser display system high, is difficult to the marketization.The price of laser instrument and its power exponentially increase, and the power that reduces laser instrument is the effective way that reduces the laser display system cost.
Summary of the invention
The utility model is for overcoming existing technological deficiency; Problem to the prior art existence; Having proposed a kind of is the wide colour gamut composite light source projection display equipment that projector equipment provides luminous energy with low power laser instrument and high-pressure sodium lamp composition composite light source; Adopt the projection display system of this device to have that colour gamut is wide, cost is low, the characteristics compatible with existing imaging optical path.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of wide colour gamut composite light source projection display equipment, it comprises the composite light source that high-pressure sodium lamp and LASER Light Source are formed, the light of two light sources is sent into dichronic mirror III, integrating rod and the imaging optical path that sets gradually together.
Said LASER Light Source is made up of red laser, green laser and blue laser; Wherein the red laser of red laser arrives dichronic mirror I through mirror reflects; The green laser of green laser also gets into dichronic mirror I; Send into dichronic mirror II again with red laser, the blue laser of blue laser is also sent into dichronic mirror II then, and blue laser is sent into dichronic mirror III again with red laser, green laser.
Said red laser becomes 45 angles with catoptron II.
The dichronic mirror I of described green laser and red laser irradiation requires a plated film at dichronic mirror I; Wherein the mirror reflects red laser of coming shines dichronic mirror I and goes up transmissive; Green laser shines on the dichronic mirror I and reflects away, and red, green laser is gathered together.
The dichronic mirror II of described blue laser and red green laser radiation requires a plated film at dichronic mirror II; Red, the green laser that wherein converges shines dichronic mirror II and goes up transmissive; Blue laser shines on the dichronic mirror II and reflects away, and three kinds of laser of red, green, blue are gathered together.
The dichronic mirror III that the white light of said high-pressure sodium lamp and three beams of laser light beam shine requires a plated film at dichronic mirror III; The red, green, blue laser that wherein converges shines on the dichronic mirror III and reflects away; White light shines the last transmission of dichronic mirror III and goes out, and three kinds of laser of red, green, blue and white light are gathered together.
The described integrating rod primary colours that will form images are spared light.
Described imaging optical path adopts LCD imaging optical path or LCoS imaging optical path.
For common projection display system, the high-pressure sodium lamp light beam forms the three primary colours light beam through even light, beam split, forms coloured image through imaging optical path then.The utility model synthesizes a light beams with high-pressure sodium lamp light beam and red, green, blue three look laser beams through catoptron, dichronic mirror, imports even light, beam split and the imaging optical path of common projection display system then, forms the coloured image of wide colour gamut.Laser and high-pressure sodium lamp light beam are jointly as projection light source; The spectral energy of laser is superimposed upon on traditional primary lights spectrum energy; Form the imaging primary colours spectral distribution that the main lobe energy is higher, the secondary lobe energy is more weak; Make the primary colours chroma point become big near, colour triangle, thereby enlarged the scope that shows colour gamut to spectrum locus.Therefore display brightness is born by laser instrument and high-pressure sodium lamp jointly, can adopt power is little, price the is low laser instrument and the high-pressure sodium lamp of smaller power, has both reduced cost, also can prolong the life-span of laser instrument and high-pressure sodium lamp.
The projection display equipment of the wide colour gamut of the utility model comprises: high-pressure sodium lamp; Red laser; Green laser; Blue laser; Dichronic mirror; Catoptron; Integrating rod; Imaging optical path.
The utility model uses existing projection display equipment; Between high-pressure sodium lamp and integrating rod, import red, green, blue laser; High-pressure sodium lamp light beam and red, green, blue three look laser beams are synthesized a light beams through catoptron, dichronic mirror I, II, III; Import even light, beam split and the imaging optical path of common projection display system then, form the coloured image of wide colour gamut.Thereby the imaging primary colours become with laser primary colours mutual group by traditional primary colours, the spectrum broad of traditional primary colours wherein, and the spectrum of laser primary colours is then extremely narrow; The spectral energy of laser is superimposed upon on the spectral energy of traditional primary colours, and it is higher to form the main lobe energy, the spectral distribution that the secondary lobe energy is more weak; Make the primary colours chroma point become big near, colour triangle, thereby enlarged the scope that shows colour gamut to spectrum locus; Therefore the brightness of image that forms is high, and colour gamut is wider, and color is more bright-coloured.
Use the laser instrument of different capacity according to cost, colour gamut.Higher when the power of employed laser instrument, cost is high more, and the main lobe energy of the primary colours that then form images is high more; Make the primary colours chroma point to spectrum locus near degree big more; Colour triangle is big more, thereby the scope of the demonstration colour gamut that enlarges is big more, and the cromogram brightness of formation is high; Colour gamut is wide, and color is more bright-coloured; Otherwise when the power of employed laser instrument hanged down, cost was low more; It is few more that the main lobe energy of respective imaging primary colours increases; The primary colours chroma point to spectrum locus near degree more little, the scope that colour triangle enlarges is more little, the expanded scope of the coloured image colour gamut of formation is also less relatively.
Laser sends R, G, B laser beam by red laser, blue laser and green laser.Therefore the brightness of this device, display is born by laser instrument and high-pressure sodium lamp jointly, can adopt power is little, price the is low laser instrument and the high-pressure sodium lamp of smaller power, has both reduced cost, also can prolong the life-span of laser instrument and high-pressure sodium lamp.
The beneficial effect of the utility model is: both can reduce the cost of laser instrument, also can prolong the life-span of laser instrument and high-pressure sodium lamp, and compatible with existing imaging optical path.Can also use the laser instrument of different capacity according to cost, colour gamut adjustment.The color developing effect of this device has with the advantage that common method for displaying projection is compared: brightness of image is high, and colour gamut is wide, and is bright in luster.
Description of drawings
Fig. 1 is the synoptic diagram that between high-pressure sodium lamp and integrator, imports red, green, blue laser.
Fig. 2 be laser and high-pressure sodium lamp as composite light source can expanded color gamut synoptic diagram.
Among the figure: the 1st, high-pressure sodium lamp; 2 red lasers; The 3rd, catoptron; The 4th, green laser; The 5th, dichronic mirror I; The 6th, blue laser; The 7th, dichronic mirror II; The 8th, dichronic mirror III; The 9th, integrating rod; The 10th, imaging optical path.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
In Fig. 1, the laser that red laser 2 sends shines on the catoptron 3, and the red laser after the reflection shines dichronic mirror I5 transmissive.The laser that green laser 4 is sent shines on the dichronic mirror I5, and the red laser that green laser after the reflection and transmission are come is gathered together and shines dichronic mirror II7 transmissive.The laser that blue laser 6 sends shines on the dichronic mirror II7, and red, the green laser that blue laser after the reflection and transmission are come is gathered together.Three beams of laser shines dichronic mirror III8 and reflects away.The white light that high-pressure sodium lamp 1 sends shines the last transmission of dichronic mirror III8 and goes out, and is gathered together with red, green, blue laser, after integrating rod 9 is spared light, reaches better illuminating effect jointly, then through imaging optical path 10, forms coloured image.
Imaging optical path 10 is present existing imaging optical paths.For example: LCD imaging optical path or LCoS imaging optical path.
In Fig. 2, spectrum locus is represented the occurring in nature all colours, primary colours chroma point R
Ld, G
Ld, B
LdThe delta-shaped region that is surrounded is represented the gamut range of laser, primary colours chroma point R
Hp, G
Hp, B
HpThe delta-shaped region that is surrounded is represented the gamut range of high-pressure sodium lamp.Visible laser is very big as the gamut range that light source covers, and high-pressure sodium lamp only can cover the color of nature 40% as light source, and scope is less.Primary colours chroma point R
c, G
c, B
cThe delta-shaped region that is surrounded is represented the gamut range of laser and high-pressure sodium lamp composite light source.Composite light source primary colours chroma point R wherein
c, G
c, B
cRespectively at R
LdWith R
Hp, G
LdWith G
Hp, B
LdWith B
HpLine on.When using the laser instrument of different capacity, R
c, G
c, B
c3 delta-shaped region sizes that surrounded also change, and the gamut range of composite light source also changes thereupon.The power of employed laser instrument is high more, the primary colours chroma point R of composite light source
c, G
c, B
cThe closer to laser-based chroma color point R
Ld, G
Ld, B
Ld, some R
c, G
c, B
cThe triangular form area that is surrounded is big more, and the composite light source colour gamut is wide more; On the contrary, the power of employed laser instrument is low more, composite light source primary colours chroma point R
c, G
c, B
cThe closer to high-pressure mercury primary colours chroma point R
LdWith R
Hp, G
Ld, some R
c, G
c, B
cThe triangular form area that is surrounded is more little, and the composite light source colour gamut is more little.Therefore, composite light source can improve the gamut range of conventional light source, and the size that improves gamut range is then by laser and the decision of high-pressure sodium lamp power proportions size.
Claims (8)
1. one kind wide colour gamut composite light source projection display equipment is characterized in that, it comprises the composite light source that high-pressure sodium lamp and LASER Light Source are formed, and the light of two light sources is sent into dichronic mirror III, integrating rod and the imaging optical path that sets gradually together.
2. wide colour gamut composite light source projection display equipment as claimed in claim 1; It is characterized in that; Said LASER Light Source is made up of red laser, green laser and blue laser; Wherein to dichronic mirror I, the green laser of green laser also gets into dichronic mirror I to the red laser of red laser, sends into dichronic mirror II again with red laser through mirror reflects; The blue laser of blue laser is also sent into dichronic mirror II then, and blue laser is sent into dichronic mirror III again with red laser, green laser.
3. wide colour gamut composite light source projection display equipment as claimed in claim 2 is characterized in that said red laser becomes 45 angles with catoptron II.
4. wide colour gamut composite light source projection display equipment as claimed in claim 2; It is characterized in that; The dichronic mirror I of described green laser and red laser irradiation requires a plated film at dichronic mirror I; Wherein the mirror reflects red laser of coming shines dichronic mirror I and goes up transmissive, and green laser shines on the dichronic mirror I and reflects away, and red, green laser is gathered together.
5. wide colour gamut composite light source projection display equipment as claimed in claim 2; It is characterized in that; The dichronic mirror II of described blue laser and red green laser radiation requires a plated film at dichronic mirror II; Red, the green laser that wherein converges shines dichronic mirror II and goes up transmissive, and blue laser shines on the dichronic mirror II and reflects away, and three kinds of laser of red, green, blue are gathered together.
6. wide colour gamut composite light source projection display equipment as claimed in claim 2; It is characterized in that; The dichronic mirror III that the white light of said high-pressure sodium lamp and three beams of laser light beam shine requires a plated film at dichronic mirror III; The red, green, blue laser that wherein converges shines on the dichronic mirror III and reflects away, and white light shines the last transmission of dichronic mirror III and goes out, and three kinds of laser of red, green, blue and white light are gathered together.
7. wide colour gamut composite light source projection display equipment as claimed in claim 1 is characterized in that, the described integrating rod primary colours that will form images are spared light.
8. wide colour gamut composite light source projection display equipment as claimed in claim 1 is characterized in that, described imaging optical path adopts LCD imaging optical path or LCoS imaging optical path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220196138XU CN202548516U (en) | 2012-05-03 | 2012-05-03 | Projection display device with wide-color-gamut compound light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220196138XU CN202548516U (en) | 2012-05-03 | 2012-05-03 | Projection display device with wide-color-gamut compound light source |
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| CN202548516U true CN202548516U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220196138XU Expired - Fee Related CN202548516U (en) | 2012-05-03 | 2012-05-03 | Projection display device with wide-color-gamut compound light source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645833A (en) * | 2012-05-03 | 2012-08-22 | 山东大学 | Wide-gamut composite light source projection display device and wide-gamut composite light source projection display method |
| WO2019134266A1 (en) * | 2018-01-04 | 2019-07-11 | 深圳光峰科技股份有限公司 | Light source system and projection apparatus |
-
2012
- 2012-05-03 CN CN201220196138XU patent/CN202548516U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645833A (en) * | 2012-05-03 | 2012-08-22 | 山东大学 | Wide-gamut composite light source projection display device and wide-gamut composite light source projection display method |
| WO2019134266A1 (en) * | 2018-01-04 | 2019-07-11 | 深圳光峰科技股份有限公司 | Light source system and projection apparatus |
| CN110007550A (en) * | 2018-01-04 | 2019-07-12 | 深圳光峰科技股份有限公司 | Light-source system and projection device |
| CN110007550B (en) * | 2018-01-04 | 2021-11-05 | 深圳光峰科技股份有限公司 | Light source system and projection equipment |
| US11906889B2 (en) | 2018-01-04 | 2024-02-20 | Appotronics Corporation Limited | Light source system and projection apparatus |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130503 |