CN2540648Y - Optical back projection screen with micro spherical structure - Google Patents
Optical back projection screen with micro spherical structure Download PDFInfo
- Publication number
- CN2540648Y CN2540648Y CN 02211941 CN02211941U CN2540648Y CN 2540648 Y CN2540648 Y CN 2540648Y CN 02211941 CN02211941 CN 02211941 CN 02211941 U CN02211941 U CN 02211941U CN 2540648 Y CN2540648 Y CN 2540648Y
- Authority
- CN
- China
- Prior art keywords
- lens
- black
- diffusion layer
- projection screen
- screen
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 15
- 238000009792 diffusion process Methods 0.000 claims abstract description 17
- 239000000470 constituent Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 125000001475 halogen functional group Chemical group 0.000 abstract 1
- 230000005764 inhibitory process Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000035807 sensation Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000011960 computer-aided design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
A miniature spherical structure optical back projection screen comprises a precisely formed lens optical component, wherein the lens optical component comprises a gray lens, a black lens and a miniature spherical lens array combination which is uniformly arranged on the outer surface of the black lens in a transverse and vertical mode, a micro fine diffusion layer or a threaded lens is arranged on the inner surface of the gray lens, and a micro fine diffusion layer or a threaded lens is arranged on the inner surface of the black lens which is in contact with the gray lens. The device has the advantages of uniform optical component structure, low manufacturing cost, high light energy utilization rate, bright and full image, effective inhibition of bright spot effect, color halo phenomenon and color shift phenomenon, and high resolution, high gain, wide viewing angle, high brightness, high contrast and the like.
Description
Technical field
The utility model relates to a kind of rear projection screen, particularly a kind of micro-spherical structure optical type rear projection screen of realizing high picture, large screen display.It is applicable to that multiple back projection terminal shows, as multimedia back projection, rear-projection one colour TV, high-definition television, screen test, multimedia HBO etc.
Background technology
As everyone knows, (LCD) back-projecting liquid crystal shows it is one of most important mode of large screen display, in recent years, require more and more higher to optical qualities such as its brightness, resolution, sharpness, colors, and (LCD) back-projecting liquid crystal shows that product is and is doubled and redoubled, the computing machine large screen projection market demand of its back projection form is increasing, particularly follows the development of HDTV, and its prospect is very good.But the most of dependence of all kinds of rear projection screens (transmission-type) import on the market, its product is used has limitation, and the product that really is fit to the LCD back projection is very expensive, and the product source of goods is in short supply.
Micro-spherical structure optical type rear projection screen is mainly used in and requires embedded, integrated, the big picture of three kinds of structures of combination, high-quality demonstration occasion, LCD, LCOS, DLP back projection display terminal TV.It is a kind of complicated comprehensive high-tech product, makes the high-tech technology that this screen needs following five aspects, Applied Optics Design, the macromolecular material of optics, large-scale high-accuracy mould, high-accuracy former and technology, opto-electronic information technology.The whole world has only minority developed country can produce this screen at present, and what wherein technology was the most ripe is CRT three rifles screens, and it is few to be applied to the single rifle rear projection screen of LCD, LCOS (liquid crystal on liquid crystal, the silicon chip).Existing rear projection screen is made of Fresnel lens and lenticular lens mostly.The former is mainly used in raising brightness, often adopts two layers and even three-decker for this reason.At present lens arra modes of taking, it is to be placed by two lenticular lens quadratures of using with the level and the vertical diffusion of optical plastic compacting to constitute more.This structure need not can be carried out optically focused and diffusion with Fresnel lens, but showing, the above big picture of the 100in that only limits to the CRT form makes transmission type screen, and the picture effect of LCD form with granular sensation is relatively poor, it would be desirable array of spherical lenses screen, but make very difficult by small spherical lens combination.Following table is the formation and the characteristics of various transmissive rear projection screen
| Classification | Constitute | Characteristics | |
| Rear projection screen | The diffused screen | Have uneven surface or light and expand layer | Brightness becomes shady phenomenon very important with colour |
| The biconvex screen | Synthesizing of lenticular plate and diffusion transmitting plate | Can improve horizontal directivity and become shady phenomenon with colour | |
| The array of spherical lenses screen | The set of small spherical lens | Be desirable rear projection screen, but make difficulty | |
| Quadrature lenticular lens array screen | Two biconvex plate Orthogonal Composite | It is best rear projection screen in the present large-scale screen | |
| The diffuser screen of band Fresnel lens | Vertical-horizontal directive property is the same | ||
| The biconvex screen of band Fresnel lens | Horizontal directivity is wideer than the diffuser screen of band Fresnel lens |
In sum, make a kind of reasonable in design, cheap, the desirable rear projection screen that can realize high picture, large screen display, become the important topic of numerous scientific and technical personnel's research.
Summary of the invention
The purpose of this utility model provides a kind of micro-spherical structure optical type rear projection screen, its optical group meta structure is even, low cost of manufacture, efficiency of light energy utilization height, image is bright-coloured full, effectively contained the speck effect, the tinge phenomenon, the gamut phenomenon has characteristics such as high resolving power, high-gain, wide visual angle, high brightness, high contrast.
The purpose of this utility model is achieved in that this device comprises the optics of lens constituent element of precise forming, wherein the optics of lens constituent element comprises grey lens, black lens and is deceiving the evenly vertically and horizontally arranged micro-spherical surface lens arra combination of lens outer surface, inside surface at grey lens is provided with little meticulous diffusion layer or Fresnel lens, and contacted with it black inner lens surfaces is provided with little meticulous diffusion layer or Fresnel lens.
Because the utility model is the problem that exists at back projections such as LCD, LCOS, the optical type rear projection screen that research is made, thinner by two to LCD rear-projection imaging with granular sensation, the micro-spherical surface lens that add particular design are evenly vertically and horizontally arranged, so can realize level, the vertical directivity of broad, resolution and sharpness have been improved greatly, solved the low shortcoming of the wide gain in present insoluble visual angle, make the efficiency of light energy utilization improve about 40% by little meticulous diffusion or Fresnel lens, image is bright-coloured full, makes full use of projector's resource.The horizontal view angle can be satisfied and watches needs on a large scale for about 180 °.The picture homogeneous degree height overcomes color displacement, and both sides are watched and do not produced color distortion, have improved spatial resolution, and low cost is about the 40-50% of like product.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure synoptic diagram of the present utility model.
Fig. 2 is a kind of optical principle synoptic diagram of the present utility model.
Embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1-2.This device is by adopting computer-aided design (CAD), and laser scale, precision molding technology are made the optics of lens constituent element and constituted.Wherein the optics of lens constituent element comprises grey lens 1, black lens 4 and in even vertically and horizontally arranged micro-spherical surface lens 5 array combination of black lens 4 outside surfaces, inside surface at grey lens 1 is provided with little meticulous diffusion layer or Fresnel lens 2, and contacted with it black lens 4 inside surfaces are provided with little meticulous diffusion layer or Fresnel lens 3.
The grey lens 1 and the black lens 4 of this device can use separately.When the grey lens 1 of independent use, it simultaneously is provided with little meticulous diffusion layer, and another side is provided with Fresnel lens; When lens 4 were deceived in independent use, it simultaneously was provided with little meticulous diffusion layer or Fresnel lens, the even vertically and horizontally arranged micro-spherical surface lens of another side.
The principle of work and the course of work of this device are as follows:
After LCD (or LCOS) projected light is through refraction once or twice, light signal passes through low gain, ash lens 1 with the component of compensation white light to little meticulous diffusion layer or Fresnel lens 2, little meticulous diffusion layer of gain or Fresnel lens 3 make the projected light imaging in the process again, image after the imaging has very strong granular sensation, contrast is lower, the higher projected light of luminance uniformity is passed black lens 4 through little meticulous diffusion layer or Fresnel lens, improve image contrast, form high-gain through micro-spherical surface lens 5 again, with great visual angle, full imaging bright in luster, the projection imaging of realizing ideal property.
Claims (1)
1, a kind of micro-spherical structure optical type rear projection screen, the optics of lens constituent element that comprises precise forming, it is characterized in that mirror optics constituent element comprises grey lens, black lens and deceiving the evenly vertically and horizontally arranged micro-spherical surface lens arra combination of lens outer surface, inside surface at grey lens is provided with little meticulous diffusion layer or Fresnel lens, and contacted with it black inner lens surfaces is provided with little meticulous diffusion layer or Fresnel lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211941 CN2540648Y (en) | 2002-05-24 | 2002-05-24 | Optical back projection screen with micro spherical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211941 CN2540648Y (en) | 2002-05-24 | 2002-05-24 | Optical back projection screen with micro spherical structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2540648Y true CN2540648Y (en) | 2003-03-19 |
Family
ID=33691713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211941 Expired - Fee Related CN2540648Y (en) | 2002-05-24 | 2002-05-24 | Optical back projection screen with micro spherical structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2540648Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2565898A (en) * | 2017-06-28 | 2019-02-27 | Lig Nanowise Ltd | Microsphere lens assembly |
-
2002
- 2002-05-24 CN CN 02211941 patent/CN2540648Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2565898A (en) * | 2017-06-28 | 2019-02-27 | Lig Nanowise Ltd | Microsphere lens assembly |
| GB2565898B (en) * | 2017-06-28 | 2020-01-01 | Lig Nanowise Ltd | Microsphere lens assembly |
| US11966063B2 (en) | 2017-06-28 | 2024-04-23 | LIG Nanowise Limited | Microsphere lens assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105911711B (en) | A kind of display device | |
| KR930002611B1 (en) | Transmission type screen | |
| CN103842896A (en) | Display device | |
| CN111999924B (en) | Display module and display device | |
| CN109377892A (en) | A kind of optical system for realizing multi-screen seamless tiled display | |
| CN205229510U (en) | Optical lens formula leaded light device of LED screen | |
| TW200405118A (en) | Transmissive screen and rear projector | |
| US20140355124A1 (en) | Color improving film and method of manufacturing the same | |
| CN105445845A (en) | Optical lens type light guiding device of LED screen | |
| CN2540648Y (en) | Optical back projection screen with micro spherical structure | |
| CN211454222U (en) | Transparent holographic imaging film | |
| JPH08327805A (en) | Light-diffusing plate, its production and transmission type projecting screen using the same | |
| WO2020063158A1 (en) | Led display screen | |
| CN2280931Y (en) | High-brightness film-television projection screen | |
| KR19990012816A (en) | Projection screen | |
| CN2718623Y (en) | Black grid precision display projetion screen | |
| WO2022156172A1 (en) | Display module and manufacturing method therefor | |
| CN209515069U (en) | A kind of optical system for realizing multi-screen seamless tiled display | |
| CN208956198U (en) | The display screen of three primary colors laser television and three primary colors laser television | |
| WO2022241820A1 (en) | Display device | |
| CN114824035A (en) | LED display module and manufacturing method thereof | |
| JP2890430B2 (en) | Screen for rear projection display | |
| JP2001004813A (en) | Optical diffusion plate and its manufacture | |
| JPH0128500Y2 (en) | ||
| Ding et al. | 29.1: Invited Paper: A Study on the Micro‐Lens Arrays Combination based Optical Film for Optical Field Optimized Projection Display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Patentee address after: 100054 Beijing city Fengtai District CAIHUYING Street No. 88 Pengrunjieyuan Jing Yuan B block 2501 Patentee address before: 115007 Liaoning city of Yingkou province Boyuquan dinuopu electronics factory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030319 Termination date: 20100524 |