CN209055794U - A kind of high colour gamut optical projection system and projector - Google Patents
A kind of high colour gamut optical projection system and projector Download PDFInfo
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- CN209055794U CN209055794U CN201821916660.4U CN201821916660U CN209055794U CN 209055794 U CN209055794 U CN 209055794U CN 201821916660 U CN201821916660 U CN 201821916660U CN 209055794 U CN209055794 U CN 209055794U
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Abstract
The utility model discloses a kind of high colour gamut optical projection systems, including light source module group, reflector, first lens, polaroid, LCD and projection lens, reflector, first lens, polaroid, LCD and projection lens are successively set on along the direction of propagation that light source module group emits beam, light source module group includes monochromatic source and quantum film, the homogeneous beam that monochromatic source issues forms white light by quantum film, after white light is reflected by reflector, it is incident to the first lens, collimated light beam is generated by the first lens again, collimated light beam sequentially passes through polaroid, LCD reaches projection lens, by projection lens projection imaging in specified region.The invention also discloses a kind of high color gamut projectors.The utility model relates to projection display technique field, a kind of high colour gamut optical projection system and projector form white light by monochromatic source incorporating quantum film, with it is existing using single white light source compared with, the projected image colour gamut of formation is higher, improves image color quality.
Description
Technical field
The utility model relates to projection display technique field more particularly to a kind of high colour gamut optical projection system and projectors.
Background technique
Projection display technique, which refers to, to be amplified image using optical system and projector space and shows on the projection screen
Technology.With projection device prevalence, more requirements are proposed to the display chromaticity under different scenes.Existing projection is set
It is standby to use single white light source, in the direction of the launch of white light source, one colored filter is set, it will be white by colored filter
Photodegradation is feux rouges, blue and green light, but the spectrum of feux rouges, blue and green light after decomposition of white light is limited, the image of formation
Colour gamut is relatively narrow, and resolution ratio is lower, and image color quality is lower.
Utility model content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to provide a kind of high colour gamut optical projection system and projector.
The technical scheme adopted by the utility model is a kind of high colour gamut optical projection system, including light source module group, reflector,
First lens, polaroid, LCD and projection lens, the reflector, first lens, the polaroid, the LCD and institute
It states projection lens to be successively set on along the direction of propagation that the light source module group emits beam, the light source module group includes monochromatic light
Source and quantum film, the homogeneous beam that the monochromatic source issues form white light by the quantum film, and the white light passes through described
After reflector reflection, be incident to first lens, then generate collimated light beam by first lens, the collimated light beam according to
It is secondary to pass through the polaroid, the LCD arrival projection lens, by the projection lens projection imaging in specified region.
As a further improvement of the foregoing solution, the monochromatic source is blue light source.
As a further improvement of the foregoing solution, the system also includes the second lens, second lens are arranged in institute
It states between LCD and the projection lens, second lens are used to the convergence of rays being emitted from the LCD being incident to the throwing
Shadow camera lens.
As a further improvement of the foregoing solution, the system also includes reflection subassembly, the reflection subassembly is arranged in institute
It states between the first lens and the polaroid, the reflection subassembly turns decomposition of white light at the first P light and S light, then by the S light
Change the 2nd P light into, the polarization state of the first P light is identical with the polarization state of the 2nd P light, the first P light and institute
It states the 2nd P light and passes sequentially through the polaroid, the LCD, second lens arrival projection lens again.
As a further improvement of the foregoing solution, the reflection subassembly includes quarter-wave plate and reflecting type polarizing film,
The white light resolves into the first P light and S light by the quarter-wave plate, and the S light is anti-via the reflecting type polarizing film
It is emitted back towards the quarter-wave plate, successively the reflector is reached via the quarter-wave plate, first lens, then passes through
First lens are reflexed to by the reflector again, the 2nd P light is converted by the quarter-wave plate, described first
P light and the 2nd P light pass sequentially through the reflecting type polarizing film, the polaroid reaches the LCD.
As a further improvement of the foregoing solution, first lens and second lens are Fresnel Lenses.
A kind of high color gamut projector, the projector include such as above-mentioned high colour gamut optical projection system.
The beneficial effects of the utility model are:
A kind of high colour gamut optical projection system and projector pass through monochromatic source incorporating quantum film, white light are formed, with existing use
Single white light source is compared, and the projected image colour gamut of formation is higher, improves image color quality.
In addition, the high colour gamut optical projection system and projector of the utility model, increase reflection mould group for decomposition of white light into the first P
Light and S light, then S light is converted into the 2nd P light, the polarization state of the first P light and the polarization state of the 2nd P light are identical, make more
Light be radiated on LCD, improve light source utilization rate, and then improve projection efficiency.
Detailed description of the invention
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
Fig. 1 is high one structural schematic diagram of colour gamut optical projection system embodiment of the utility model；
Fig. 2 is high two structural schematic diagram of colour gamut optical projection system embodiment of the utility model；
Fig. 3 is the high colour gamut optical projection system embodiment two of the utility model from monochromatic source to LCD light path schematic diagram.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
Clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.It should be noted that not conflicting
In the case where, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that unless otherwise specified, when a certain feature referred to as " fixation ", " connection " are in another feature,
It can directly fix, be connected to another feature, and can also fix, be connected to another feature indirectly.In addition, this
The descriptions such as up, down, left, right, before and after used in utility model are only relative to each composition portion of the utility model in attached drawing
For the mutual alignment relation divided.
In addition, unless otherwise defined, the technology of all technical and scientific terms used herein and the art
The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without
It is to limit the present invention.Term " and or " used herein includes the arbitrary of one or more relevant listed items
Combination.
Embodiment one
Fig. 1 is high one structural schematic diagram of colour gamut optical projection system embodiment of the utility model, referring to Fig.1, a kind of high colour gamut throwing
Shadow system, including light source module group 1, reflector 2, the first lens 3, polaroid 4, LCD5 and projection lens 6.Wherein, reflector 2,
First lens 3, polaroid 4, LCD5 and projection lens 6 are successively set on along the direction of propagation that light source module group 1 emits beam.Tool
Body, light source module group 1 includes monochromatic source and quantum film, and quantum film is arranged on the direction of monochromatic source light propagation, quantum
The quantum dot of film is excited by the monochromatic light that monochromatic source projects and forms white light after light mixing.The white light of generation passes through in reflector 2
After wall emission, the first lens 3 are incident to, generate collimated light beam by the first lens 3, collimated light beam generates line by polaroid 4
Polarised light, linearly polarized light reach projection lens 6 after modulating by LCD5, are imaged on specified region by projection lens 6.
In the present embodiment, optical projection system further includes the second lens 7, the setting of the second lens 7 LCD5 and projection lens 6 it
Between, the convergence of rays being emitted after modulating from LCD5 is incident to projection lens 6.
In the present embodiment, monochromatic source is blue light source, specifically uses blue LED lamp.With the prior art using single white
Radiant is compared, and the white light generated by blue LED lamp and quantum film, the projected image colour gamut of formation is higher, improves pattern colour
Color quality.
In the present embodiment, the first lens 3 and the second lens 7 are all made of Fresnel Lenses, and cost is relatively low.
Embodiment two
The optical projection system of the present embodiment and the difference of the optical projection system in embodiment one be, the optical projection system of the present embodiment
It further include reflection subassembly 8, Fig. 2 is high two structural schematic diagram of colour gamut optical projection system embodiment of the utility model, and Fig. 3 is that this is practical new
The high colour gamut optical projection system embodiment two of type is from monochromatic source to LCD light path schematic diagram, and in conjunction with Fig. 2 and Fig. 3, reflection subassembly 8 is arranged
Between the first lens 3 and polaroid 4, reflection subassembly 8 strolls decomposition of white light at the first P light and S, then S light is converted into the 2nd P
Light, wherein the polarization state of the first P light and the polarization state of the 2nd P light are identical, and the first P light and the 2nd P light pass sequentially through partially
Mating plate 4, LCD5, the second lens 7 reach projection lens 8.
In the present embodiment, reflection subassembly includes quarter-wave plate 801 and reflecting type polarizing film 802, and white light passes through four points
One of wave plate 801 resolve into the first P light and S light, S light is reflected back quarter-wave plate 801 via reflecting type polarizing film 802, according to
The secondary inner wall that reflector 2 is reached via quarter-wave plate 801, the first lens 3 reflexes to first thoroughly via reflector 2 again
Mirror 3 is converted into the 2nd P light by quarter-wave plate 801, and the first P light and the 2nd P light pass sequentially through reflecting type polarizing film
802, polaroid 4 reaches LCD5, and in the present embodiment, polaroid 4 passes through LCD5 tune for absorbing the S light for being not converted into the 2nd P light
Projection lens 6 is reached after system, and specified region is imaged on by projection lens 6.
In the present embodiment, reflecting type polarizing film 802 is APF, can also use the reflecting type polarizing film of other models.
In the present embodiment, increase reflection mould group between the first lens and polaroid for decomposition of white light into the first P light and S
Light, then S light is converted into the 2nd P light, the polarization state of the first P light and the polarization state of the 2nd P light are identical, make more light
It is radiated on LCD, improves light source utilization rate, and then improve projection efficiency.
Embodiment three
The utility model additionally provides a kind of projector for improving colour gamut, which includes the raising such as above-described embodiment
The optical projection system of colour gamut.
A kind of high colour gamut optical projection system and projector pass through monochromatic source incorporating quantum film, white light are formed, with existing use
Single white light source is compared, and the projected image colour gamut of formation is higher, improves image color quality.
In addition, the high colour gamut optical projection system and projector of the utility model, increase reflection mould group for decomposition of white light into the first P
Light and S light, then S light is converted into the 2nd P light, the polarization state of the first P light and the polarization state of the 2nd P light are identical, make more
Light be radiated on LCD, improve light source utilization rate, and then improve projection efficiency.
It is to be illustrated to the preferable implementation of the utility model, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention
Or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (7)
1. a kind of high colour gamut optical projection system, which is characterized in that it includes light source module group, reflector, the first lens, polaroid, LCD
And projection lens, the reflector, first lens, the polaroid, the LCD and the projection lens are successively set on
Along the direction of propagation that the light source module group emits beam, the light source module group includes monochromatic source and quantum film, the monochrome
The homogeneous beam that light source issues forms white light after the white light is reflected by the reflector by the quantum film and is incident to
First lens, then collimated light beam is generated by first lens, the collimated light beam sequentially passes through the polaroid, institute
It states LCD and reaches the projection lens, by the projection lens projection imaging in specified region.
2. a kind of high colour gamut optical projection system according to claim 1, which is characterized in that the monochromatic source is blue light light
Source.
3. a kind of high colour gamut optical projection system according to claim 1 or 2, which is characterized in that the system also includes second
Lens, second lens are arranged between the LCD and the projection lens, and second lens are used for will be from the LCD
The convergence of rays of outgoing is incident to the projection lens.
4. a kind of high colour gamut optical projection system according to claim 3, which is characterized in that the system also includes reflection groups
Part, the reflection subassembly are arranged between first lens and the polaroid, and the reflection subassembly is by decomposition of white light at the
One P light and S light, then the S light is converted into the 2nd P light, the polarization state of the first P light and the polarization of the 2nd P light
State is identical, and the first P light and the 2nd P light pass sequentially through the polaroid, the LCD, second lens again and arrives
Up to the projection lens.
5. a kind of high colour gamut optical projection system according to claim 4, which is characterized in that the reflection subassembly include four/
One wave plate and reflecting type polarizing film, the white light resolve into the first P light and S light, the S light warp by the quarter-wave plate
The quarter-wave plate is reflected back by the reflecting type polarizing film, successively thoroughly via the quarter-wave plate, described first
Mirror reaches the reflector, then reflexes to first lens again via the reflector, passes through the quarter-wave plate
It is converted into the 2nd P light, the first P light and the 2nd P light passes sequentially through the reflecting type polarizing film, the polaroid arrives
Up to the LCD.
6. a kind of high colour gamut optical projection system according to claim 3, which is characterized in that first lens and described second
Lens are Fresnel Lenses.
7. a kind of high color gamut projector, which is characterized in that the projector includes such as height as claimed in any one of claims 1 to 6
Colour gamut optical projection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916660.4U CN209055794U (en) | 2018-11-20 | 2018-11-20 | A kind of high colour gamut optical projection system and projector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916660.4U CN209055794U (en) | 2018-11-20 | 2018-11-20 | A kind of high colour gamut optical projection system and projector |
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| CN209055794U true CN209055794U (en) | 2019-07-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515262A (en) * | 2019-09-29 | 2019-11-29 | 长沙湘计海盾科技有限公司 | A kind of optical projection system and its application method with night vision function |
| CN113885287A (en) * | 2021-11-12 | 2022-01-04 | 福州京东方光电科技有限公司 | Projection device, display system and preparation method of light source component |
| CN114185235A (en) * | 2021-12-08 | 2022-03-15 | 深圳市科金明电子股份有限公司 | High color gamut coverage 2LCD projection device |
-
2018
- 2018-11-20 CN CN201821916660.4U patent/CN209055794U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515262A (en) * | 2019-09-29 | 2019-11-29 | 长沙湘计海盾科技有限公司 | A kind of optical projection system and its application method with night vision function |
| CN113885287A (en) * | 2021-11-12 | 2022-01-04 | 福州京东方光电科技有限公司 | Projection device, display system and preparation method of light source component |
| CN114185235A (en) * | 2021-12-08 | 2022-03-15 | 深圳市科金明电子股份有限公司 | High color gamut coverage 2LCD projection device |
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Effective date of registration: 20200420 Address after: 518000 third floor, building 8, Hualun Science Park, Fenghuang first industrial zone, Fuyong Town, Fuyong street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN TOPFOISON ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: Room 107, Building A, Pioneer One, 43 Yanshan Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN GAOGE PROJECTION TECHNOLOGY Co.,Ltd. |