CN218830146U - 2LCD projection device - Google Patents
2LCD projection device Download PDFInfo
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- CN218830146U CN218830146U CN202223273257.3U CN202223273257U CN218830146U CN 218830146 U CN218830146 U CN 218830146U CN 202223273257 U CN202223273257 U CN 202223273257U CN 218830146 U CN218830146 U CN 218830146U
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- 239000000843 powder Substances 0.000 claims description 8
- 238000002834 transmittance Methods 0.000 abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a 2LCD projection arrangement, include: the device comprises a first light source, a first LCD module, a second light source, a second LCD module, a light combining mirror and a lens, wherein the first LCD module and the second LCD module are vertically arranged, and the light combining mirror is arranged at an angle of 45 degrees with the first LCD module and the second LCD module; the first light source comprises a first blue LED light source and a first lens, the first LCD module comprises a first rear Fresnel lens, a first incident polaroid, a black-white LCD screen and a first front Fresnel lens, the second light source comprises a second blue LED light source, a fluorophor and a second lens, and the second LCD module comprises a second rear Fresnel lens, a second incident polaroid, a red-green LCD screen and a second front Fresnel lens; the utility model discloses the effectual transmittance that has promoted the panel, the temperature resistant light fast characteristic that has improved the panel to holistic luminance and colour gamut have been promoted.
Description
Technical Field
The utility model relates to a projection arrangement technical field, in particular to 2LCD projection arrangement.
Background
The projector is a device capable of projecting images or videos onto a curtain, and the mainstream projectors are mainly classified into a DPL projector and a 3LCD projector, wherein the 3LCD projector has better color reproducibility and is certainly used by most users.
However, the LCD panel has low transmittance and poor resistance to temperature and light, and thus, the wavelength bandwidth of the 3-color system has problems of insufficient brightness and color gamut. The 2LCD structure can be effectual the transmittance of improvement panel, the temperature resistant light-fast characteristic of improvement panel to promote holistic luminance and colour gamut.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a 2LCD projection arrangement, aims at the effectual transmissivity that promotes the panel, improves the temperature resistant light-fast characteristic of panel to promote holistic luminance and colour gamut.
To achieve the above object, the present invention provides a 2LCD projection device, including: the LCD device comprises a first light source, a first LCD module, a second light source, a second LCD module, a light combining mirror and a lens.
The first light source faces the first LCD module, the second light source faces the second LCD module, the first LCD module and the second LCD module are vertically arranged, and the light combining mirror is arranged at 45 degrees with the first LCD module and the second LCD module.
The first light source comprises a first blue LED light source and a first lens, the first LCD module comprises a first rear Fresnel lens, a first incident polaroid, a black and white LCD screen and a first front Fresnel lens which are sequentially arranged from back to front, the second light source comprises a second blue LED light source, a fluorescent body and a second lens, and the second LCD module comprises a second rear Fresnel lens, a second incident polaroid, a red and green LCD screen and a second front Fresnel lens which are sequentially arranged from back to front.
Blue light emitted by the first blue LED light source irradiates the first LCD module after passing through the first lens, the black-white LCD screen receives blue signals of images and displays the blue signals, and the blue signals are incident to the light combining mirror through a 45-degree angle of light of the first LCD module and reflected by the light combining mirror; the blue light emitted by the second blue LED light source firstly irradiates on the fluorescent powder of the fluorescent body, the fluorescent powder is excited to emit yellow light, the yellow light passes through the second lens and then irradiates on the second LCD module, the red and green LCD screen receives red and green signals and displays the red and green signals, and the light passing through the second LCD module is incident on the light combining mirror at an angle of 45 degrees and penetrates through the light combining mirror; the images of the first LCD module and the second LCD module are opposite in left and right; the light combining mirror combines the reflected and transmitted two beams of light, and the combined light beam is imaged on a screen through the lens.
The utility model discloses a further technical scheme is, first lens with the second lens is aspheric lens.
The utility model discloses 2LCD projection arrangement's beneficial effect is: the utility model discloses 2LCD projection arrangement is through above-mentioned technical scheme, include: the device comprises a first light source, a first LCD module, a second light source, a second LCD module, a light combining mirror and a lens; the first light source is arranged towards the first LCD module, the second light source is arranged towards the second LCD module, the first LCD module and the second LCD module are vertically arranged, and the light combining mirror is arranged at an angle of 45 degrees with the first LCD module and the second LCD module; the first light source comprises a first blue LED light source and a first lens, the first LCD module comprises a first rear Fresnel lens, a first incident polaroid, a black-and-white LCD screen and a first front Fresnel lens which are sequentially arranged from back to front, the second light source comprises a second blue LED light source, a fluorophor and a second lens, and the second LCD module comprises a second rear Fresnel lens, a second incident polaroid, a red-and-green LCD screen and a second front Fresnel lens which are sequentially arranged from back to front; blue light emitted by the first blue LED light source irradiates the first LCD module after passing through the first lens, the black-and-white LCD screen receives and displays a blue signal of an image, and the blue signal is incident to the light-combining mirror through a 45-degree angle of light of the first LCD module and reflected by the light-combining mirror; the blue light emitted by the second blue LED light source firstly irradiates on the fluorescent powder of the fluorescent body, the fluorescent powder is excited to emit yellow light, the yellow light passes through the second lens and then irradiates on the second LCD module, the red and green LCD screen receives and displays red and green signals, and the light passing through the second LCD module enters the light combining mirror at an angle of 45 degrees and penetrates through the light combining mirror; the images of the first LCD module and the second LCD module are opposite left and right; the light combining mirror combines two beams of reflected and transmitted light, and the combined light beams are imaged on a screen through the projection lens, so that the transmittance of the panel is effectively improved, and the temperature and light resistance of the panel is improved, thereby improving the overall brightness and color gamut.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a preferred embodiment of the LCD projector apparatus of the present invention 2.
The reference numbers indicate:
first light source 10:
a first blue LED light source 101; a first lens 102;
first LCD module 20:
a first rear fresnel lens 201; a first incident polarizer 202; a black-and-white LCD screen 203, a first front fresnel lens 204;
second light source 30:
a second blue LED light source 301; a phosphor 302; a second lens 303;
second LCD module 40:
a second rear fresnel lens 401; a second incident polarizer 402; red and green LCD screens 403; a second front fresnel lens 404;
a light combining mirror 50;
and a lens 60.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a 2LCD projection device, and the preferred embodiment of the 2LCD projection device of the present invention includes: the LCD device comprises a first light source 10, a first LCD module 20, a second light source 30, a second LCD module 40, a light combining mirror 50 and a lens 60.
The first light source 10 is disposed toward the first LCD module 20, the second light source 30 is disposed toward the second LCD module 40, the first LCD module 20 and the second LCD module 40 are vertically disposed, and the light combining mirror 50 is disposed at 45 ° with the first LCD module 20 and the second LCD module 40.
In this embodiment, the first light source 10 includes a first blue LED light source 101 and a first lens 102, the first LCD module 20 includes a first rear fresnel lens 201, a first incident polarizer 202, a black-and-white LCD panel 203, and a first front fresnel lens 204, which are sequentially disposed from back to front, the second light source 30 includes a second blue LED light source 301, a fluorescent body 302, and a second lens 303, and the second LCD module 40 includes a second rear fresnel lens 401, a second incident polarizer 402, a red-green LCD panel 403, and a second front fresnel lens 404, which are sequentially disposed from back to front.
The blue light emitted by the first blue LED light source 101 passes through the first lens 102 and then irradiates the first LCD module 20, and the black-and-white LCD screen 203 receives and displays a blue signal of an image, and the blue signal passes through a 45-degree angle of light of the first LCD module 20 and enters the light combining mirror 50, and is reflected by the light combining mirror 50; the blue light emitted by the second blue LED light source 301 firstly irradiates on the phosphor of the phosphor 302, the phosphor is excited to emit yellow light, the yellow light passes through the second lens 303 and then irradiates on the second LCD module 40, the red/green LCD screen 403 receives and displays red/green signals, and the light passing through the second LCD module 40 enters the light combining mirror 50 at an angle of 45 degrees and then passes through the light combining mirror 50; the images of the first LCD module 20 and the second LCD module 40 are opposite left and right; the light combining mirror 50 combines the two reflected and transmitted beams, and the combined beam is imaged on a screen through the lens 60.
Further, in this embodiment, the first lens 102 and the second lens 303 are both aspheric lenses. In this embodiment, the first lens 102 and the second lens 303 are aspheric lenses, which can correct spherical aberration of a spherical lens in a collimating and focusing system in the prior art.
The utility model discloses 2LCD projection arrangement's beneficial effect is: the utility model discloses 2LCD projection arrangement is through above-mentioned technical scheme, include: the device comprises a first light source, a first LCD module, a second light source, a second LCD module, a light combining mirror and a lens; the first light source is arranged towards the first LCD module, the second light source is arranged towards the second LCD module, the first LCD module and the second LCD module are vertically arranged, and the light combining mirror is arranged at an angle of 45 degrees with the first LCD module and the second LCD module; the first light source comprises a first blue LED light source and a first lens, the first LCD module comprises a first rear Fresnel lens, a first incident polaroid, a black-and-white LCD screen and a first front Fresnel lens which are sequentially arranged from back to front, the second light source comprises a second blue LED light source, a fluorophor and a second lens, and the second LCD module comprises a second rear Fresnel lens, a second incident polaroid, a red-and-green LCD screen and a second front Fresnel lens which are sequentially arranged from back to front; blue light emitted by the first blue LED light source irradiates the first LCD module after passing through the first lens, the black-white LCD screen receives blue signals of images and displays the blue signals, and the blue signals are incident to the light combining mirror through a 45-degree angle of light of the first LCD module and reflected by the light combining mirror; the blue light emitted by the second blue LED light source firstly irradiates on the fluorescent powder of the fluorescent body, the fluorescent powder is excited to emit yellow light, the yellow light passes through the second lens and then irradiates on the second LCD module, the red and green LCD screen receives red and green signals and displays the red and green signals, and the light passing through the second LCD module is incident on the light combining mirror at an angle of 45 degrees and penetrates through the light combining mirror; the images of the first LCD module and the second LCD module are opposite in left and right; the light combining mirror combines two beams of reflected and transmitted light, and the combined light beams are imaged on a screen through the projection lens, so that the transmittance of the panel is effectively improved, and the temperature and light resistance of the panel is improved, thereby improving the overall brightness and color gamut.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (2)
1. A 2LCD projection device, comprising: the device comprises a first light source, a first LCD module, a second light source, a second LCD module, a light combining mirror and a lens;
the first light source is arranged towards the first LCD module, the second light source is arranged towards the second LCD module, the first LCD module and the second LCD module are vertically arranged, and the light combining mirror is arranged at an angle of 45 degrees with the first LCD module and the second LCD module;
the first light source comprises a first blue LED light source and a first lens, the first LCD module comprises a first rear Fresnel lens, a first incident polaroid, a black-and-white LCD screen and a first front Fresnel lens which are sequentially arranged from back to front, the second light source comprises a second blue LED light source, a fluorophor and a second lens, and the second LCD module comprises a second rear Fresnel lens, a second incident polaroid, a red-and-green LCD screen and a second front Fresnel lens which are sequentially arranged from back to front;
blue light emitted by the first blue LED light source irradiates the first LCD module after passing through the first lens, the black-and-white LCD screen receives and displays a blue signal of an image, and the blue signal is incident to the light-combining mirror through a 45-degree angle of light of the first LCD module and reflected by the light-combining mirror; the blue light emitted by the second blue LED light source firstly irradiates on the fluorescent powder of the fluorescent body, the fluorescent powder is excited to emit yellow light, the yellow light passes through the second lens and then irradiates on the second LCD module, the red and green LCD screen receives and displays red and green signals, and the light passing through the second LCD module enters the light combining mirror at an angle of 45 degrees and penetrates through the light combining mirror; the images of the first LCD module and the second LCD module are opposite in left and right; the light combining mirror combines the reflected and transmitted two beams of light, and the combined light beam is imaged on a screen through the lens.
2. The 2LCD projection device of claim 1, wherein the first lens and the second lens are both aspheric lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223273257.3U CN218830146U (en) | 2022-12-07 | 2022-12-07 | 2LCD projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223273257.3U CN218830146U (en) | 2022-12-07 | 2022-12-07 | 2LCD projection device |
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| Publication Number | Publication Date |
|---|---|
| CN218830146U true CN218830146U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223273257.3U Active CN218830146U (en) | 2022-12-07 | 2022-12-07 | 2LCD projection device |
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| CN (1) | CN218830146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116841106A (en) * | 2023-06-12 | 2023-10-03 | 深圳市科金明电子股份有限公司 | Two-piece type LCD projection device with optical filtering function and projection method |
-
2022
- 2022-12-07 CN CN202223273257.3U patent/CN218830146U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116841106A (en) * | 2023-06-12 | 2023-10-03 | 深圳市科金明电子股份有限公司 | Two-piece type LCD projection device with optical filtering function and projection method |
| CN116841106B (en) * | 2023-06-12 | 2024-04-19 | 深圳市科金明电子股份有限公司 | Two-piece type LCD projection device with optical filtering function and projection method |
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