WO2013182018A1 - Écran de projection noir - Google Patents

Écran de projection noir Download PDF

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Publication number
WO2013182018A1
WO2013182018A1 PCT/CN2013/076625 CN2013076625W WO2013182018A1 WO 2013182018 A1 WO2013182018 A1 WO 2013182018A1 CN 2013076625 W CN2013076625 W CN 2013076625W WO 2013182018 A1 WO2013182018 A1 WO 2013182018A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
projection screen
black
film
black projection
Prior art date
Application number
PCT/CN2013/076625
Other languages
English (en)
Chinese (zh)
Inventor
刘美鸿
Original Assignee
深圳市亿思达显示科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市亿思达显示科技有限公司 filed Critical 深圳市亿思达显示科技有限公司
Publication of WO2013182018A1 publication Critical patent/WO2013182018A1/fr

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface

Definitions

  • the present invention relates to the field of projection display technology, and in particular to a black projection screen.
  • the invention provides a black projection screen, wherein the black projection screen can make the light of the primary light wavelength range of the projected light incident thereon substantially totally reflected, and is incident on the natural light on the black projection screen. Most of the light is absorbed, which effectively improves the contrast and color reproduction of the black projection screen.
  • one technical solution adopted by the present invention is to provide a black projection screen.
  • the black projection screen comprises: an optical film having opposite first and second surfaces, the optical film for reflecting light of a range of primary light in the projected light and transmitting light of other wavelength ranges, Wherein, the optical film is formed by a plurality of different reflective films different from each other, the multi-layer reflective film comprising: a red reflective film reflecting red light, a green reflective film reflecting green light, and a blue reflective film reflecting blue light. a black light absorbing layer disposed on the second surface for absorbing light incident thereon; a transparent substrate disposed on the first surface of the optical film, and the transparent substrate is transmissive Light incident on it.
  • the multilayer reflective film further comprises: a yellow light reflecting film that reflects yellow light.
  • the multilayer reflective film further comprises: a cyan reflective film that reflects cyan light.
  • the multilayer reflective films are disposed in contact with each other.
  • the multilayer reflective film is sequentially plated on the black light absorbing layer.
  • the multilayer reflective film is sequentially plated on the transparent substrate.
  • a black projection screen comprising: an optical film having opposite first and second surfaces for reflecting a primary color in the projected light Light in a range of wavelengths of light and light in other wavelength ranges; a black light absorbing layer disposed on the second surface for absorbing light incident thereon; wherein the optical films are different from each other The multilayer reflective film is formed.
  • the multilayer reflective film comprises: a red light reflecting film that reflects red light, a green light reflecting film that reflects green light, and a blue light reflecting film that reflects blue light.
  • the multilayer reflective film further comprises: a yellow light reflecting film that reflects yellow light.
  • the multilayer reflective film further comprises: a cyan reflective film that reflects cyan light.
  • the black projection screen further includes a transparent substrate disposed on the first surface of the optical film, and the transparent substrate transmits light incident thereon.
  • the multilayer reflective films are disposed in contact with each other.
  • the multilayer reflective film is sequentially plated on the black light absorbing layer.
  • the multilayer reflective film is sequentially plated on the transparent substrate.
  • the invention provides a black projection screen, wherein a black light absorbing layer is disposed on the optical film, so that the light of the range of the primary light in the projected light incident on the black projection screen is almost totally reflected, and is incident on the black projection screen. Most of the light in the natural light is absorbed, which effectively improves the contrast and color reproduction of the black projection screen image, thereby expanding the use of the black projection screen.
  • FIG. 1 is a schematic structural view of a first embodiment of a black projection screen of the present invention
  • Figure 2 is a schematic view showing a structure of the optical film 11 of Figure 1;
  • FIG. 3 and FIG. 4 are schematic diagrams showing the projection principle of the black projection screen 10 shown in FIG. 1 including the optical film 11 shown in FIG. 2;
  • Figure 5 is a schematic view showing the structure of a second embodiment of the black projection screen of the present invention.
  • FIG. 1 is a schematic structural view of a first embodiment of a black projection screen of the present invention.
  • the black projection screen 10 of the present embodiment includes an optical film 11 and a black light absorbing layer 12.
  • the optical film 11 has opposing first and second surfaces, wherein the first surface faces an incident direction of the projected light.
  • the optical film 11 is for reflecting light of a range of fundamental light in the projected light and light of other wavelength ranges, and the optical film 11 is formed of a plurality of reflective films different from each other.
  • the black light absorbing layer 12 is disposed on the second surface of the optical film 11, and the black light absorbing layer 12 serves to absorb light incident thereon.
  • the plurality of reflective films may be disposed in contact with each other, or may be sequentially plated on the black light absorbing layer 12.
  • the multilayer reflective film may have other arrangements, which are not limited in the present invention.
  • FIG. 2 is a schematic view showing a structure of the optical film 11 of FIG. 1.
  • the optical film 11 includes a first light reflecting film (not shown), a second light reflecting film (not shown), and a third light reflecting film (not shown).
  • the first reflective film is a red light reflecting film 111
  • the second light reflecting film is a green light reflecting film 112
  • the third light reflecting film is a blue light reflecting film 113, as viewed in an incident direction of the projected light.
  • the first reflective film, the second reflective film, and the third reflective film may be red reflective film, green reflective film, and blue reflective film in addition to the red, green, and blue (RGB) mode. Any combination mode, such as red blue green (RBG) mode and blue red green (BRG) mode, will not be repeated here.
  • the optical film 11 in the first embodiment of the present invention may further include a fourth light reflecting film (not shown), and the fourth light reflecting film is a yellow light reflecting film (not shown).
  • the combination mode of the first light reflecting film, the second light reflecting film, the third light reflecting film and the fourth light emitting film is a red light reflecting film 111, a green light reflecting film 112, and a blue light reflecting, as viewed in an incident direction of the projected light.
  • Any combination mode of the film 113 and the yellow light reflecting film such as red green blue yellow (RGBY) mode and red yellow blue green (RYBG) mode.
  • the optical film 11 in the first embodiment of the present invention may further include a fourth light reflecting film (not shown) and a fifth light reflecting film (not shown), wherein the fourth light reflecting film is a yellow light reflecting film, and the fifth The reflective film is a cyan reflective film.
  • the combination mode of the first light reflecting film, the second light reflecting film, the third light reflecting film, the fourth light emitting film and the fifth light reflecting film is a red light reflecting film 111 and a green light reflecting direction as viewed in an incident direction of the projected light.
  • Any combination mode of the film 112, the blue light reflecting film 113, the yellow light reflecting film, and the cyan light reflecting film for example, a red green blue yellow green (RGBYC) mode and a green red yellow blue (GRYCB) mode.
  • the red reflective film is used to reflect red light
  • the green reflective film is used to reflect green light
  • the blue reflective film is used to reflect blue light
  • the yellow reflective film is used to reflect yellow light and blue light.
  • the reflective film is used to reflect cyan light.
  • the final color pattern formed by the projection light is determined by a combination of primary color rays of a specific wavelength.
  • the laser light source and the fluorescent color wheel determine a specific wavelength range in the projected light.
  • the primary light which in turn determines the color pattern of the projected light.
  • the optical film 11 selectively reflects the light of the range of the primary light rays in the projected light and the light of the other wavelength range, wherein the light transmitted through the optical film 11 is absorbed by the black light.
  • Layer 12 is absorbed.
  • FIG. 3 and FIG. 4 are schematic diagrams showing the projection principle of the black projection screen 10 shown in FIG. 1 including the optical film 11 shown in FIG. 2.
  • the projected light incident on the black projection screen 30 is a colored light formed by mixing three primary colors of red light, green light, and blue light.
  • the red light of a specific wavelength range is almost totally reflected by the red light reflecting film, and the light of other wavelengths enters the next reflective film; the green light of a specific wavelength range is green light.
  • the reflective film is almost totally reflected, and the remaining blue light of a specific wavelength is almost completely reflected by the blue light reflecting film. Therefore, the projection light incident on the black projection screen 10 is almost RGB Reflective film total reflection.
  • the red reflective film only reflects more than 95% of the red light in a specific wavelength range (such as red light with a wavelength range of 635 nm ⁇ 10 nm) in the projected light, and transmits light in other wavelength ranges.
  • the rate is over 95%
  • the green reflective film only reflects more than 95% of the green light of a specific wavelength range in the projected light (such as green light with a wavelength range of 540 nm ⁇ 10 nm), and the light of other wavelength ranges.
  • the transmittance is over 95%; the blue light reflecting film only reflects the blue light of a specific wavelength in the projected light (such as blue light with a wavelength range of 435 nm ⁇ 10 nm) as high as 95% or more, and is transparent to other wavelengths.
  • the rate of overreach is over 95%.
  • natural light is incident on the black projection screen 10 while the projection light is incident on the optical film 11.
  • natural light is composed of continuous wavelengths of light, and only a small part of the natural light has a wavelength range consistent with the wavelength range of the primary light in the projected light, so only a small part of the natural light is reflected by the black projection screen 10, and large Part of the light is transmitted and then absorbed by the black light absorbing layer 12.
  • the black projection screen 10 shown in FIG. 1 of the optical film 11 including the structure shown in FIG. 2 can effectively reduce the influence of ambient light on the projected light, thereby improving the black projection screen 10.
  • the contrast of the image, the color reproduction, and the projection viewing effect can further expand the range of use of the black projection screen of the present invention.
  • FIG. 5 is a schematic structural view of a second embodiment of a black projection screen of the present invention.
  • the black projection screen 20 of the present embodiment is different from the black projection screen 10 of the first embodiment in that the black projection screen 20 further includes a transparent substrate 23, wherein the transparent substrate 23 is disposed on the optical film 21. On the first surface, and the transparent substrate 23 transmits light incident thereon.
  • the multilayer reflective film may be sequentially plated on the transparent substrate 23.
  • the transparent substrate 23 may be a flexible transparent substrate or a rigid transparent substrate such as a glass substrate.
  • the present invention provides a black projection screen, by providing a black light absorbing layer on the optical film, so that the light of the primary light ray in the projected light incident on the black projection screen is almost totally reflected and incident. Most of the light in the natural light on the black projection screen is absorbed, which effectively improves the contrast and color reproduction of the black projection screen image, thereby expanding the use range of the black projection screen.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

L'invention concerne un écran de projection noir (10) qui comprend: un film optique (11) ayant une première surface et une seconde surface opposées afin de réfléchir la lumière dans une plage de longueurs d'onde de lumière primaire dans la lumière projetée, et de transmettre la lumière dans d'autres plages de longueurs d'onde; une couche noire absorbant la lumière (12) disposée sur la seconde surface afin d'y absorber la lumière incidente ; lequel film optique (11) est formé de multiples couches de films réfléchissants différents les uns des autres. En plaçant une couche noire absorbant la lumière (12) sur le film optique (11), la lumière dans la plage de longueurs d'onde de lumière primaire dans la lumière projetée incidente sur l'écran de projection noir (10) est presque totalement réfléchie tandis que la plupart de la lumière naturelle incidente sur l'écran de projection noir (10) est absorbée, ce qui permet d'augmenter efficacement le rapport de contraste d'image et la réductibilité couleur de l'écran de projection noir (10).
PCT/CN2013/076625 2012-06-04 2013-06-03 Écran de projection noir WO2013182018A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210180982.8 2012-06-04
CN201210180982.8A CN102736390B (zh) 2012-06-04 2012-06-04 一种黑色投影幕

Publications (1)

Publication Number Publication Date
WO2013182018A1 true WO2013182018A1 (fr) 2013-12-12

Family

ID=46992122

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/076625 WO2013182018A1 (fr) 2012-06-04 2013-06-03 Écran de projection noir

Country Status (2)

Country Link
CN (1) CN102736390B (fr)
WO (1) WO2013182018A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9726968B2 (en) 2014-10-27 2017-08-08 Barco, Inc. Display systems and methods employing screens with an array of micro-lenses or micro-mirrors
US9766535B2 (en) 2014-07-22 2017-09-19 Barco, Inc. Display systems and methods employing wavelength multiplexing of colors
US9772549B2 (en) 2014-07-22 2017-09-26 Barco, Inc. Display systems and methods employing polarizing reflective screens
US9986214B2 (en) 2014-07-22 2018-05-29 Barco, Inc. Display systems and methods employing time multiplexing of projection screens and projectors

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102736390B (zh) * 2012-06-04 2014-06-25 深圳市亿思达显示科技有限公司 一种黑色投影幕
CN104714360A (zh) * 2013-12-16 2015-06-17 深圳市亿思达科技集团有限公司 一种多层复合的反射式投影屏幕
CN104656352B (zh) * 2015-03-18 2016-08-10 达靖虹 晶片组件和成像系统以及晶片组件制作方法
CN104965386A (zh) * 2015-07-13 2015-10-07 南京先进激光技术研究院 具有多层反射薄膜的投影显示设备
CN109960102B (zh) 2017-12-14 2022-01-04 深圳光峰科技股份有限公司 投影屏幕
CN107991837B (zh) * 2018-01-30 2020-05-05 上海理工大学 基于全反射的增强投影亮度和对比度的幕布及其制作方法
CN112558397A (zh) * 2019-09-10 2021-03-26 青岛海信激光显示股份有限公司 显示屏幕

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JPH07261274A (ja) * 1994-03-24 1995-10-13 Seiko Instr Inc 投影スクリーン
JPH11295816A (ja) * 1998-04-13 1999-10-29 Victor Co Of Japan Ltd 投射スクリーン及び投射表示装置
CN1496494A (zh) * 2001-12-13 2004-05-12 ���ṫ˾ 屏幕、屏幕的制造方法和图像显示系统
US20050041285A1 (en) * 2003-08-04 2005-02-24 Dai Nippon Printing Co., Ltd. Projection screen and projection system comprising the same
US20110279781A1 (en) * 2010-05-17 2011-11-17 Hon Hai Precision Industry Co., Ltd. Projection screen, projection system and method for making the projection screen
CN102736390A (zh) * 2012-06-04 2012-10-17 深圳市亿思达显示科技有限公司 一种黑色投影幕
CN202735671U (zh) * 2012-06-04 2013-02-13 深圳市亿思达显示科技有限公司 一种黑色投影幕

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US6769774B2 (en) * 2002-11-14 2004-08-03 International Business Machines Corporation Ambient light tolerant image projection method and system
US20070097509A1 (en) * 2005-10-31 2007-05-03 Nevitt Timothy J Optical elements for high contrast applications
CN101270237A (zh) * 2007-03-19 2008-09-24 尹光中 一种制作银幕用的墨晶光显涂层材料及其制备方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07261274A (ja) * 1994-03-24 1995-10-13 Seiko Instr Inc 投影スクリーン
JPH11295816A (ja) * 1998-04-13 1999-10-29 Victor Co Of Japan Ltd 投射スクリーン及び投射表示装置
CN1496494A (zh) * 2001-12-13 2004-05-12 ���ṫ˾ 屏幕、屏幕的制造方法和图像显示系统
US20050041285A1 (en) * 2003-08-04 2005-02-24 Dai Nippon Printing Co., Ltd. Projection screen and projection system comprising the same
US20110279781A1 (en) * 2010-05-17 2011-11-17 Hon Hai Precision Industry Co., Ltd. Projection screen, projection system and method for making the projection screen
CN102736390A (zh) * 2012-06-04 2012-10-17 深圳市亿思达显示科技有限公司 一种黑色投影幕
CN202735671U (zh) * 2012-06-04 2013-02-13 深圳市亿思达显示科技有限公司 一种黑色投影幕

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9766535B2 (en) 2014-07-22 2017-09-19 Barco, Inc. Display systems and methods employing wavelength multiplexing of colors
US9772549B2 (en) 2014-07-22 2017-09-26 Barco, Inc. Display systems and methods employing polarizing reflective screens
US9986214B2 (en) 2014-07-22 2018-05-29 Barco, Inc. Display systems and methods employing time multiplexing of projection screens and projectors
US9726968B2 (en) 2014-10-27 2017-08-08 Barco, Inc. Display systems and methods employing screens with an array of micro-lenses or micro-mirrors

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CN102736390A (zh) 2012-10-17
CN102736390B (zh) 2014-06-25

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