WO2021208344A1

WO2021208344A1 - Projection system having self-luminous screen

Info

Publication number: WO2021208344A1
Application number: PCT/CN2020/114692
Authority: WO
Inventors: 石东
Original assignee: 苏州桐力光电股份有限公司
Priority date: 2020-04-17
Filing date: 2020-09-11
Publication date: 2021-10-21
Also published as: CN211741824U

Abstract

Disclosed is a projection system having a self-luminous screen, the system comprising a projection system. The projection system comprises a projector (1), the self-luminous projection screen (2) and a reflection plane (3), wherein the self-luminous projection screen (2) is, in particular, the projection screen (2) excited by the projected light from the projector (1) to emit light; the projector (1) is located at a side of the self-luminous projection screen (2); a light-emitting source of the projector (1) is aligned with a front face of the self-luminous projection screen (2); and the reflection plane (3) is attached to a back face of the self-luminous projection screen (2). According to the projection system having the self-luminous screen, the projection screen (2) can be excited by the projected light from the projector (1) so as to have a self-luminous function, and at the same time, the reflection plane (3) can reflect the light that is projected by the projector (1) and passes through the screen, such that the resistance of the projection system to ambient light is greatly improved, the display brightness is effectively improved, and the system cost is reduced.

Description

Projection system with self-luminous screen

Technical field

The utility model belongs to the technical field of projectors, and particularly relates to a projection system with a self-luminous screen.

Background technique

With the development of society, various display application schemes emerge one after another, among which projection occupies a very important part. The projection system uses the principle that the target screen scatters the image projected by the projector into the human eye for display. The disadvantage of this scheme is that the ability to resist ambient light is relatively weak. If the ambient light is strong, the display effect of the projection will be affected. If you want a better effect, you must increase the output brightness of the projection itself, but this will bring a great cost increase.

Therefore, it is necessary to design a projection system with a self-luminous screen to solve the above technical problems.

Summary of the invention

In order to overcome the above-mentioned shortcomings in the prior art, the purpose of the present invention is to provide a projection system with a self-luminous screen.

In order to achieve the above and other related purposes, the technical solution provided by the present invention is: a projection system with a self-luminous screen, including a projection system, the projection system including a projector, a self-luminous projection screen, and a reflective plane. The light-emitting projection screen is specifically a projection screen that is excited by the light projected by the projector to emit light, the projector is located on one side of the self-luminous projection screen, and the emission source of the projector is aimed at the front of the self-luminous projection screen ; The reflective plane is attached to the back of the self-luminous screen.

Preferably, the self-luminous projection screen contains photoluminescent nanomaterials.

Preferably, the reflective plane is specifically a white material with high reflectivity attached to the back of the self-luminous projection screen.

Preferably, the reflective plane is specifically a reflective film plated on the back of the self-luminous projection screen.

Due to the application of the above technical solutions, the advantages of the present invention compared with the prior art are as follows:

A self-luminous screen projection system designed by this scheme. The screen can be excited by the projection light of the projector to have the function of self-luminescence. At the same time, the reflective plane can reflect the light that the projector projects through the screen, which greatly improves the anti-environmental resistance of the projection system The light power can effectively improve the display brightness and reduce the system cost.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

In the above drawings, the projector 1, the self-luminous projection screen 2, the reflective plane 3.

Detailed ways

The following specific examples illustrate the implementation of the present utility model. Those familiar with this technology can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification.

Please refer to Figure 1. It should be noted that the structure, ratio, size, etc. shown in the accompanying drawings in this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not intended to limit the implementation of this utility model. Therefore, it has no technical significance. Any structural modification, proportional relationship change, or size adjustment should still fall within the scope of The technical content disclosed by the utility model can be covered. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for ease of description, not to limit the text. The scope of the utility model that can be implemented, and the change or adjustment of its relative relationship, without substantial changes to the technical content, shall also be regarded as the scope of implementation of the utility model.

Embodiment: As shown in FIG. 1, a projection system with a self-luminous screen includes a projection system. The projection system includes a projector, a self-luminous projection screen, and a reflective plane. The self-luminous projection screen is specifically produced by the projection The projected light from the projector excites a luminous projection screen, and the self-luminous projection screen contains photoluminescent nanomaterials; the projector is located on one side of the self-luminous projection screen, and the emission source of the projector is aimed at all The front side of the self-luminous projection screen; the reflective plane is attached to the back of the self-luminous screen; the reflective plane can be a high-reflectivity white material attached to the back of the self-luminous projection screen, or it can be plated The reflective film on the back of the self-luminous projection screen.

The self-luminous projection system designed in this scheme, the screen can be excited by the projection light of the projector to have the function of self-luminescence. The self-luminous projection screen contains photoluminescent nanomaterials, which can be made by cooperating with other materials. Film, projection screen, glass, hard projection screen, etc. When the light of a specific wavelength projected by the projector illuminates it, the nanomaterial will be excited by the light. The color of the excitation light depends on the combination of the wavelength of the light projected by the projector and different nanomaterials; at the same time, in the self-luminous projection A white material with high reflectivity (such as an electronic whiteboard) is attached to the back of the screen or a reflective film is plated on the back of the self-luminous projection screen. This will form a reflective plane with a reflectivity of at least 80%; the benefits of this are: projection When the light projected by the machine passes through the projection screen, part of it will excite the nano material to emit light, and part of it will penetrate the projection screen and wasted; using a reflective plane can reflect this part of the light back to the projection screen by the high reflectivity material on the plane, and then excite the nano material again. The material emits light, which increases the overall excitation efficiency of the system; the excitation light of the nanomaterial emits 360 degrees, so the excitation light toward the back of the projection screen is wasted. By using the reflective plane, this part of the light will be reflected toward the observer by the high-reflectivity material on the back of the screen, which increases the utilization rate of the excitation light of the system.

The above-mentioned embodiments only exemplarily illustrate the principles and effects of the present utility model, and are not used to limit the present utility model. Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

A projection system with a self-luminous screen, characterized in that it comprises a projection system, the projection system comprises a projector, a self-luminous projection screen and a reflective plane, the self-luminous projection screen is specifically excited by light projected by the projector to emit light The projection screen, the projector is located on one side of the self-luminous projection screen, the emission source of the projector is aimed at the front of the self-luminous projection screen; the reflective plane is attached to the self-luminous screen back.
The self-luminous screen projection system of claim 1, wherein the self-luminous projection screen contains photoluminescent nanomaterials.
The projection system with a self-luminous screen according to claim 1, wherein the reflective plane is specifically a white material with high reflectivity attached to the back of the self-luminous projection screen.
The self-luminous screen projection system according to claim 1, wherein the reflective plane is specifically a reflective film plated on the back of the self-luminous projection screen.