CN103163715A - High-contrast projection screen - Google Patents
High-contrast projection screen Download PDFInfo
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- CN103163715A CN103163715A CN 201210439613 CN201210439613A CN103163715A CN 103163715 A CN103163715 A CN 103163715A CN 201210439613 CN201210439613 CN 201210439613 CN 201210439613 A CN201210439613 A CN 201210439613A CN 103163715 A CN103163715 A CN 103163715A
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Abstract
The invention discloses a high-contrast projection screen, and relates to a projection screen. In the process of projected displaying, brightness of ambient light can enable a projection effect to be lowered. The main reason is that the ambient light enhances the brightness of a black color in a projected image, and image contrast ratio is reduced. In order to solve the problem, one method is to enhance the brightness of a projector, but the result is the facts that the image is too bright and has a fog feeling, visual fatigue is easy to produce, and energy consumption is high. The other method is to enable the influence of the ambient light to the projected image to be lowered by means of the function of the projection screen. The high-contrast projection screen comprises a screen base and a coating, and is characterized in that dot-shaped array graphics are coated on the screen base at intervals in a black-and-white mode.
Description
Technical field
The present invention relates to: projection screen.
Background technology
In the process of Projection Display, the brightness of surround lighting can make drop shadow effect reduce.This main cause is that surround lighting has improved the brightness of black in the projected image, and the picture contrast reduction is caused.Address the above problem, the method for kind is the brightness that improves projector.Result be image too bright, have the mist sense, easily produce visual fatigue, the power consumption high; Another kind method is to utilize the function of projection screen, the impact of reduction surround lighting on projected image.Blocking the method that reduces surround lighting has, application number: CN201010531601.In " product of display surface surround lighting " this art, wherein a kind of, the part of rubber curtain is difficult for making.Another kind utilizes the peep-proof film to make, due to the too high difficult realization of cost.
Summary of the invention
The objective of the invention is: the projection screen that a kind of high-contrast is provided.
For realizing that purpose Adopts measure of the present invention is:
1, high-contrast projection screen comprises: curtain base and coating is characterized in that: the point-like array pattern at coating black and white interval on the curtain base.
2, high-contrast projection screen according to claim 1 is characterized in that: be coated with reflecting coating in the white coating zone.
3, high-contrast projection screen according to claim 1 is characterized in that: be coated with the grey reflecting coating in the white coating zone.
4, high-contrast projection screen according to claim 1 is characterized in that: at the regional coating white reflecting coating of white coating, at black region coating black reflecting coating.
5, high-contrast projection screen comprises: curtain base and coating, and it is characterized in that: on the curtain base, ground floor is the reflecting coating layer, the second layer is that the black dot matrix absorbs the optical coating layer.
6, high-contrast projection screen according to claim 5 is characterized in that: as the black dot matrix coating of the second layer, adopt the black reflecting coating.
7, high-contrast projection screen according to claim 5 is characterized in that: the coating of described reflector layer is the pearl essence of sneaking into respective color in transparent material.
Advantage of the present invention
The present invention utilizes light absorbing method, shows black with black, reduces natural light to the impact in half-light zone in projection.The brightness of losing in black color dots array area territory with reflectorized material compensation.The present invention adopts the dot matrix pattern at simple black and white interval, solves the problem that surround lighting reduces drop shadow effect.Can significantly improve the contrast of projection image.Be convenient to make just throwing, swept-back hair, soft curtain, hard curtain.Can reduce the cost of projection screen, help to promote the energy-conservation projection broadcast mode of this low-light level of LED.
Description of drawings
Fig. 1,2, the 3rd, the array pattern of high-contrast projection screen.
Embodiment
Below in conjunction with accompanying drawing, real-time mode of the present invention is explained in detail.
1, high-contrast projection screen comprises: curtain base and coating is characterized in that: the point-like array pattern at coating black and white interval on the curtain base.
This curtain can be used for just throwing also being used for rear-projection.The array pattern at Fig. 1,2,3 three kind of black and white interval.In the figure this point, there is no specific (special) requirements, the general shared Area Ratio of black and white pattern, being arranged on 50% is an equilibrium point.
2, high-contrast projection screen according to claim 1 is characterized in that: be coated with reflecting coating in the white coating zone.
Be used in when just throwing, increase the brightness of bright area image with reflectorized material, also compensated the brightness that this regional black dot matrix sponges.Can when keeping high-contrast, improve the brightness of image.
3, high-contrast projection screen according to claim 1 is characterized in that: be coated with the grey reflecting coating in the white coating zone.
The grey reflectorized material is adopted in white coating zone, can further reduce in projection environmental light brightness in the half-light zone.Be applicable to the moderate projector of brightness.
4, high-contrast projection screen according to claim 1 is characterized in that: be coated with the grey reflecting coating in the white coating zone, at black region coating black reflecting coating.
All adopt reflectorized material to increase the brightness of image in the black and white zone.Be coated with the grey reflecting coating in the white coating zone, increase the ratio of half-light zone black.Be applicable to the lower projector of brightness.
Embodiment
5, high-contrast projection screen comprises: curtain base and coating, and it is characterized in that: on the curtain base, ground floor is the reflecting coating layer, the second layer is that the black dot matrix absorbs the optical coating layer.
Can adopt the method for printing, pattern is imprinted on act base from level to level.If be used in the mode of rear-projection, white portion adopts scattering material just passable.
6, high-contrast projection screen according to claim 5 is characterized in that: as the black dot matrix coating of the second layer, adopt the black reflecting coating.
Also in order to keep high-contrast, to increase the lightness of just throwing picture.
7, high-contrast projection screen according to claim 5 is characterized in that: the coating of described reflector layer is the pearl essence of sneaking into respective color in transparent material.
The kind of reflectorized material can be chosen wantonly.Sneak into the clear dope of pearl essence, reflecting effect is preferably arranged, if first be coated with one deck black on the curtain base, then the coating white reflector layer, can appear the black of some bottoms, can reduce the brightness in half-light zone in projection, the effect of the contrast of the projection that also can be improved.
Industrial applicibility
The present invention can use existing printing material, printing technology manufacturing.Can be imprinted on hard or soft curtain base.
Claims (7)
1. high-contrast projection screen comprises: curtain base and coating is characterized in that: the point-like array pattern at coating black and white interval on the curtain base.
2. high-contrast projection screen according to claim 1 is characterized in that: be coated with reflecting coating in the white coating zone.
3. high-contrast projection screen according to claim 1 is characterized in that: be coated with the grey reflecting coating in the white coating zone.
4. high-contrast projection screen according to claim 1, is characterized in that: at the regional coating white reflecting coating of white coating, at black region coating black reflecting coating.
5. high-contrast projection screen comprises: curtain base and coating, and it is characterized in that: on the curtain base, ground floor is the reflecting coating layer, the second layer is that the black dot matrix absorbs the optical coating layer.
6. high-contrast projection screen according to claim 5, is characterized in that: as the black dot matrix coating of the second layer, adopt the black reflecting coating.
7. high-contrast projection screen according to claim 5, it is characterized in that: the coating of described reflector layer is the pearl essence of sneaking into respective color in transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210439613 CN103163715A (en) | 2012-11-07 | 2012-11-07 | High-contrast projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210439613 CN103163715A (en) | 2012-11-07 | 2012-11-07 | High-contrast projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103163715A true CN103163715A (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210439613 Pending CN103163715A (en) | 2012-11-07 | 2012-11-07 | High-contrast projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103163715A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652579A (en) * | 2014-11-18 | 2016-06-08 | 张金铭 | Low-brightness high-contrast projection screen |
| CN111269604A (en) * | 2018-12-03 | 2020-06-12 | 深圳光峰科技股份有限公司 | Projection screen combined coating and preparation method of projection screen |
-
2012
- 2012-11-07 CN CN 201210439613 patent/CN103163715A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652579A (en) * | 2014-11-18 | 2016-06-08 | 张金铭 | Low-brightness high-contrast projection screen |
| CN111269604A (en) * | 2018-12-03 | 2020-06-12 | 深圳光峰科技股份有限公司 | Projection screen combined coating and preparation method of projection screen |
| CN111269604B (en) * | 2018-12-03 | 2022-01-04 | 深圳光峰科技股份有限公司 | Projection screen combined coating and preparation method of projection screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |