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Transparent projection film screen and ultra-short-focus projection system using the same

A projection film and transparent technology, which is applied in the field of projection display, can solve the problems that transparent projection screens cannot be used in the ultra-short-focus market, and cannot be mass-produced.

Pending Publication Date: 2021-09-10
JIANGSU JICUI INTELLIGENT LCD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of this application is to solve the problem that traditional transparent projection screens cannot be used in the ultra-short-focus market
[0006] Another purpose of this application is to solve the problem that current technology cannot make projection screen mass production

Method used

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  • Transparent projection film screen and ultra-short-focus projection system using the same
  • Transparent projection film screen and ultra-short-focus projection system using the same
  • Transparent projection film screen and ultra-short-focus projection system using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] like figure 1 As shown, a schematic cross-sectional structure diagram of a transparent projection film curtain 1 is provided. The transparent projection film curtain 1 is suitable for an ultra-short-focus projection system. It can be seen from the figure that the transparent projection film curtain 1 includes a base layer 01 and a microstructure layer 02 , a first display bearing layer 03 , and a refractive index matching layer 04 . Because the projector 2 in a general ultra-short-focus projection system has a fixed position, we only need to reflect the target beam 05 emitted by the projector 2 at a fixed position into the human eye observation area 4. In view of the above-mentioned practical application characteristics , we have specially designed the structure of the transparent projection film curtain 1, so that the target light beam 05 emitted from the projector 2 enters the visible area after passing through the transparent projection film curtain 1.

[0053] In o...

Embodiment 2

[0060] During the preparation of the display carrier layer, it can be discontinuous as in Example 1, or it can consist of a continuous surface. like Image 6 As shown, we prepare the first display bearing layer 03 and the second display bearing layer 10 by coating on the microstructure layer 02, the second display bearing layer 10 is seamlessly connected with the edge section of the first display bearing layer 03, and the The second display bearing layer 10 and the first display bearing layer 03 completely cover the upper surface of the microstructure layer. The materials for preparing the first display carrying layer 03 and the second display carrying layer 10 may be but not limited to titanium dioxide, silver, aluminum, gold, etc.; preparing the first display carrying layer 03 and the second display carrying layer 03 The coating means of the carrying layer 10 include but not limited to physical vapor deposition technology and the like. On the surface of the first display b...

Embodiment 3

[0063] Based on the high-definition transparent projection film curtain of embodiment 1 and embodiment 2, this embodiment provides the preparation process of transparent projection film curtain:

[0064] First, prepare a template with a predetermined surface microstructure according to the surface microstructure of the microstructure layer 02 to be prepared. like Figure 7 As shown, the template described here should meet the following requirements: the characteristic length L1 between adjacent peaks or adjacent troughs of the microstructure on the mold may not be greater than 2 mm. In a further preferred embodiment, the characteristic length L1 between adjacent crests or adjacent troughs of the microstructure on the mold may not be greater than 0.5 mm. In a further preferred embodiment, the characteristic length L1 between adjacent crests or adjacent troughs of the microstructure on the mold may not be greater than 0.1 mm. The height difference d between the crests and trou...

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Abstract

The invention relates to a transparent projection film screen which comprises a base layer, a microstructure layer, a first display bearing layer and a refractive index matching layer. The upper surface of the microstructure layer is an uneven surface with a microstructure, and the uneven surface comprises a reflective surface facing the light direction of a target light source and a backlight surface opposite to the light direction of the target light source; and the first display bearing layer is arranged on the reflective surface, and the upper surface of the first display bearing layer enables incident light from the target light source to be reflected into a visible range. According to the ultra-short-focus projection system prepared by the transparent projection film screen, the overall permeability is increased on the premise that the projection effect is guaranteed, light interference of external environment light to the visual range of human eyes is solved, and the ultra-short-focus projection system is small in occupied area, low in cost and suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of projection display, in particular to a transparent projection film curtain and an ultra-short-focus projection system using the same. Background technique [0002] As a special part of the display field, transparent display has attracted more and more attention in recent years. At present, when other transparent display technologies have more or less certain problems, transparent projection has gained certain market and customer recognition in recent years due to its special form of expression. At present, the front projection system tends to develop towards an ultra-short-throw projection system. In an ultra-short-throw projection system, the position of the projector is usually extremely close to the screen. The traditional front projection is mainly realized by the diffuse reflection of the screen. For the traditional projection equipment, the ordinary projection screen can realize the viewing functio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60
CPCG03B21/60
Inventor 陆嘉伟薛九枝樊杰
Owner JIANGSU JICUI INTELLIGENT LCD TECH CO LTD