CN202533695U - Liquid crystal projector - Google Patents
Liquid crystal projector Download PDFInfo
- Publication number
- CN202533695U CN202533695U CN2012200566241U CN201220056624U CN202533695U CN 202533695 U CN202533695 U CN 202533695U CN 2012200566241 U CN2012200566241 U CN 2012200566241U CN 201220056624 U CN201220056624 U CN 201220056624U CN 202533695 U CN202533695 U CN 202533695U
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- liquid crystal
- brightness
- crystal projector
- optical system
- lens
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Abstract
The utility model relates to a liquid crystal projector which comprises an illuminating optical system, a liquid crystal light valve, and a processor. The illuminating optical system comprises a light source, a collecting lens, a first integral lens, a second integral lens and a relay lens. The liquid crystal light valve is arranged between the first integral lens and the second integral lens. The processor is connected with the liquid crystal light valve, is used to carry out digitalized processing on inputted image signals, acquires the digitalized brightness of each part of the image signals, controls the brightness passing degree of the liquid crystal light valve based on the digitalized brightness, and makes the brightness of the light source corresponding to the brightness of each part of the image signals. According to the utility model, the processor controls the brightness passing degree of the liquid crystal light valve through the digitalized brightness of the image signals, and makes the brightness of the light source corresponding to the brightness of each part of the image signals, so that the contrast is greatly improved while the image signals with different brightness are displayed, and the displayed content colors are more sufficient and easier to differentiate, and greatly satisfies the requirement.
Description
[technical field]
The utility model relates to a kind of liquid crystal projector.
[background technology]
Along with development of science and technology, the function of liquid crystal projector is more and more, and it is also more and more convenient that the user uses, and still to the design of projector, requires increasingly high.
In the design of liquid crystal projector, contrast is very crucial to the influence of visual effect.Usually, contrast is big more, and image is clear more eye-catching, and color is also distinct more gorgeous; And contrast is little, then can let whole image all dusky.High-contrast all has very great help for sharpness, details performance, the gray-level performance of image.At aspects such as the bigger text display of some black and white contrasts, CAD demonstration and black-and-white photograph demonstrations, the high-contrast product all has advantage at aspects such as black and white contrast, sharpness, integralities.
But, present liquid crystal projector, contrast is generally lower, can not satisfy the increasingly high requirement of user.
[utility model content]
Based on this, be necessary to provide a kind of liquid crystal projector that promotes contrast.
A kind of liquid crystal projector comprises lamp optical system, liquid crystal light valve and processor; Said lamp optical system comprises light source, condenser, first integral lens, second integral lens and first relay lens; Said liquid crystal light valve is arranged between said first integral lens and the second integral lens; Said processor is connected with said liquid crystal light valve; Be used for the picture signal of input is carried out digitized processing; Obtain the digitizing brightness of picture signal various piece, and pass through degree, make said light-source brightness corresponding with the brightness of picture signal various piece according to the brightness of the said liquid crystal light valve of digitizing brilliance control.
Preferably, said liquid crystal projector also comprises the color separation optical system that receives said lamp optical system light.
Preferably, said color separation optical system comprises dichronic mirror group, reflector group, second relay lens and convex lens group.
Preferably, said liquid crystal projector also comprises the liquid crystal panel system that receives said color separation optical system light.
Preferably, said liquid crystal projector also comprises the synthetic prisms of the said liquid crystal panel of reception system light.
Preferably, said liquid crystal projector also comprises the camera lens that receives said synthetic prisms light.
Above-mentioned liquid crystal projector, processor carries out digitized processing to picture carrier, obtains the digitizing brightness of picture signal various piece; Through degree, make the brightness of light source corresponding according to the brightness of the digitizing brilliance control liquid crystal light valve of picture signal with the brightness of picture signal various piece, thereby when the picture signal of the different brightness of demonstration; Significantly promote the contrast of projector; Make the content displayed color full, explanation satisfies the demands greatly more easily.
[description of drawings]
Fig. 1 is the structural representation of liquid crystal projector among the embodiment.
[embodiment]
Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail.
Fig. 1 is the structural representation of liquid crystal projector among the embodiment.This liquid crystal projector comprises lamp optical system 100, liquid crystal light valve 200 and processor 300.Lamp optical system 100 comprises light source 110, condenser 120, first integral lens 130, second integral lens 140 and first relay lens 150.Liquid crystal light valve 200 is arranged between first integral lens 130 and the second integral lens 140.Processor 300 is connected with liquid crystal light valve 200; Be used for the picture signal of input is carried out digitized processing; Obtain the digitizing brightness of picture signal various piece; And according to the brightness of digitizing brilliance control liquid crystal light valve 200 through degree, make light source 110 brightness corresponding with the brightness of picture signal various piece, thus the raising contrast.
Among this embodiment, this liquid crystal projector also comprises the color separation optical system 400 that receives lamp optical system 100 light.Wherein, color separation optical system 400 comprises dichronic mirror group 410, reflector group 420, second relay lens 430 and convex lens group 440.
Further, this liquid crystal projector also comprises the camera lens 700 of the liquid crystal panel system 500 that receives color separation optical system 400 light, the synthetic prisms 600 that receives liquid crystal panel system 500 light and reception synthetic prisms 600 light.
This liquid crystal projector receives the outside picture signal of importing, and processor 300 carries out digitized processing according to the brightness light and shade of picture signal various piece to picture carrier, obtains the digitizing brightness of picture signal various piece.Processor 300 passes through degree according to the brightness of the digitizing brilliance control liquid crystal light valve 200 of picture signal then; Make the brightness of light source 110 corresponding with the brightness of picture signal various piece, promptly corresponding with picture carrier through 110 brightness of the local in real time control light source of liquid crystal light valve 200, to projecting the image in the screen; Owing to carried out brilliance control at light source 110; Thereby when showing the picture signal of black, white, perhaps different brightness such as local black, local white, significantly promote contrast, make the content displayed color full; Explanation satisfies the demands greatly more easily.
Above-mentioned liquid crystal projector, processor carries out digitized processing to picture carrier, obtains the digitizing brightness of picture signal various piece; Through degree, make the brightness of light source corresponding according to the brightness of the digitizing brilliance control liquid crystal light valve of picture signal with the brightness of picture signal various piece, thereby when the picture signal of the different brightness of demonstration; Significantly promote the contrast of projector; Make the content displayed color full, explanation satisfies the demands greatly more easily.
The above embodiment has only expressed several kinds of embodiments of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
Claims (6)
1. a liquid crystal projector is characterized in that, comprises lamp optical system, liquid crystal light valve and processor; Said lamp optical system comprises light source, condenser, first integral lens, second integral lens and first relay lens; Said liquid crystal light valve is arranged between said first integral lens and the second integral lens; Said processor is connected with said liquid crystal light valve; Be used for the picture signal of input is carried out digitized processing; Obtain the digitizing brightness of picture signal various piece, and pass through degree, make said light-source brightness corresponding with the brightness of picture signal various piece according to the brightness of the said liquid crystal light valve of digitizing brilliance control.
2. liquid crystal projector according to claim 1 is characterized in that, said liquid crystal projector also comprises the color separation optical system that receives said lamp optical system light.
3. liquid crystal projector according to claim 2 is characterized in that, said color separation optical system comprises dichronic mirror group, reflector group, second relay lens and convex lens group.
4. liquid crystal projector according to claim 3 is characterized in that, said liquid crystal projector also comprises the liquid crystal panel system that receives said color separation optical system light.
5. liquid crystal projector according to claim 4 is characterized in that, said liquid crystal projector also comprises the synthetic prisms of the said liquid crystal panel of reception system light.
6. liquid crystal projector according to claim 5 is characterized in that, said liquid crystal projector also comprises the camera lens that receives said synthetic prisms light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200566241U CN202533695U (en) | 2012-02-21 | 2012-02-21 | Liquid crystal projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200566241U CN202533695U (en) | 2012-02-21 | 2012-02-21 | Liquid crystal projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202533695U true CN202533695U (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200566241U Expired - Fee Related CN202533695U (en) | 2012-02-21 | 2012-02-21 | Liquid crystal projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202533695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054511A (en) * | 2016-08-02 | 2016-10-26 | 深圳市华星光电技术有限公司 | Projection device and projection system |
-
2012
- 2012-02-21 CN CN2012200566241U patent/CN202533695U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054511A (en) * | 2016-08-02 | 2016-10-26 | 深圳市华星光电技术有限公司 | Projection device and projection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160823 Granted publication date: 20121114 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170823 Granted publication date: 20121114 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20170221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |