Ultra-short-focus laser flexible transparent display mask

Abstract

The invention provides an ultra-short-focus laser flexible transparent display mask, and relates to the technical field of laser masks, and the ultra-short-focus laser flexible transparent display mask comprises a photonic crystal transparent mask assembly which receives a display signal and is used for realizing a transparent display function; the helmet assembly is used for fixing a mask and providing signal drive; the optical machine assembly is used for projecting an image to the photonic crystal transparent mask assembly; the structure assembly is used for supporting and fixing all electronic components and is used for solving the technical problems that an existing transparent display mask mostly adopts a fixed design, lacks flexible adaptation capacity, is limited in display brightness and visual angle and cannot meet the use requirements in a complex environment.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of laser masks, and particularly relates to an ultra-short focus laser flexible transparent display mask. Background Art

[0002] With the rapid development of display technology, transparent display technology has gradually become a research hotspot due to its unique application scenarios and user experiences. Although traditional transparent display technologies, such as liquid crystal display (LCD) and organic light-emitting diode (OLED), have made certain progress in transparency and display effects, there are still problems such as limited viewing angles, insufficient brightness, and poor flexible adaptability. Especially in scenarios that require both transparency and high-definition display, such as head-mounted masks, augmented reality (AR) devices, etc., traditional technologies are difficult to meet the dual demands of users for transparent display and picture quality.

[0003] Photon transparent chip display technology is a newly emerging transparent display solution in recent years. It realizes image display by selectively regulating light in a specific direction while retaining the transparent characteristics of the medium. However, this technology can currently only regulate light from the direction of the projector and cannot achieve full-view transparent display, resulting in limitations for users when observing the external environment. In addition, the brightness adjustment ability of existing flexible transparent display devices is insufficient, making it difficult to adapt to the usage requirements under different lighting conditions and affecting the user experience.

[0004] In the military, industrial, and consumer electronics fields, the application demand for head-mounted transparent display masks is increasing. For example, pilots, firefighters, or industrial operators need to obtain real-time information through the mask while maintaining a clear view of the external environment. Existing transparent display masks mostly adopt a fixed design, lack flexible adaptability, and have limited display brightness and viewing angles, unable to meet the usage requirements in complex environments. Therefore, it is of great significance to develop a transparent display mask with flexibility, high transparency, high brightness adjustability, and full-view display capabilities.

[0005] It should be noted that the above content belongs to the technical knowledge scope of technicians. Due to the vast and complex technical content in this field, the above content of this application does not necessarily constitute the prior art. Summary of the Invention

[0006] 1. Technical problems to be solved by the invention: The present invention provides an ultra-short focus laser flexible transparent display mask to solve the technical problems existing in the above background art.

[0007] 2. Technical solutions: To achieve the above object, the technical solution provided by the present invention is: An ultra-short focus laser flexible transparent display mask, comprising A photon crystal transparent mask assembly that receives a display signal and is used to achieve a transparent display function; A helmet assembly that is used to fix the mask and provide signal driving; An optical engine assembly that is used to project an image onto the photon crystal transparent mask assembly; A structural assembly that is used to support and fix each electronic component; Among them, the optical engine assembly includes a semiconductor laser, a MEMS imaging chip, a TIR prism, and a projection objective lens. The light emitted by the semiconductor laser is refracted by the TIR prism and then incident on the MEMS imaging chip, and after modulation, it is projected onto the photon crystal transparent mask assembly by the projection objective lens.

[0008] This device is worn on the head of the staff who needs to use it. When working, the semiconductor laser emits a high-brightness and highly collimated laser beam; after the laser beam is refracted by the TIR prism, the optical path direction is adjusted so that it accurately enters the MEMS imaging chip; the MEMS imaging chip quickly modulates the laser beam through the microelectromechanical system to form a dynamic image signal. The modulated laser image is projected onto the photon crystal transparent mask assembly by the projection objective lens. The photon crystal transparent mask assembly of this device is composed of a flexible photon crystal film. Due to the use of flexible materials, the mask can adapt to different curvatures and is suitable for wearable devices such as helmets and goggles. The helmet assembly and the structural assembly play a role in fixing and supporting the entire device. A lightweight design is adopted to ensure wearing comfort. At the same time, a quick-release interface is provided to facilitate the maintenance or replacement of modules. This device enables the mask to maintain a light transmittance of more than 70% when displaying an image through photon crystal technology, ensuring that the user can clearly observe the external environment. The flexible photon crystal film used can be bent and fitted to different curved surfaces, expanding the application scenarios and can better adapt to different working requirements.

[0009] Further, the photon crystal transparent mask assembly includes a helmet mask and a flexible photon crystal film; The flexible photon crystal film has a phase modulation layer and a phase compensation layer, which are used to selectively reflect the projection light and maintain the transparency of the ambient light.

[0010] Further, a signal driving board and a laser driving board are provided inside the helmet assembly. The signal driving board is used to receive an external input signal, and the laser driving board is used to drive the semiconductor laser.

[0011] Further, the semiconductor laser of the optical engine assembly is a low-power and high-beam-quality laser.

[0012] Further, the MEMS imaging chip is a micro high-resolution imaging device.

[0013] Further, the projection objective lens is an ultra-short focal length optical system.

[0014] Furthermore, the working power supply of the helmet assembly is DC-12V input.

[0015] 3. Beneficial effects: Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects: The present invention is reasonably designed. Through the innovative combination of photonic crystal flexible display and ultra-short focus laser projection, it achieves a perfect balance between high transparency display and clear image output, and solves the problems of limited viewing angle and insufficient brightness of traditional transparent display devices.

[0016] The flexible and deformable design enables the mask to adapt to different curved surface structures. Combined with lightweight components, it significantly improves the wearing comfort and environmental adaptability, meeting the requirements of diverse application scenarios.

[0017] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by the prior art because they do not involve the design key points and improvement directions of the present invention, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is an exploded schematic structural diagram of the present invention.

[0019] Reference numerals: 1. Photonic crystal transparent mask assembly; 11. Helmet mask; 12. Flexible photonic crystal film; 2. Helmet assembly; 3. Optical engine assembly; 4. Structural assembly. DETAILED DESCRIPTION OF THE INVENTION

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0023] In the present invention, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", "provided with", "arranged on" and the like shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] It should be noted that for the structures not introduced in the present invention, since they do not involve the design key points and improvement directions of the present invention, the prior art known to those skilled in the art can be adopted.

[0025] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0026] Referring to the attached Figure 1-2 , a ultra-short focal length laser flexible transparent display mask, comprising a photonic crystal transparent mask assembly 1, which receives a display signal and is used to realize the transparent display function; a helmet assembly 2, which is used to fix the mask and provide signal driving; an optical engine assembly 3, which is used to project an image onto the photonic crystal transparent mask assembly 1; a structural assembly 4, which is used to support and fix each electronic component; wherein, the optical engine assembly 3 includes a semiconductor laser, a MEMS imaging chip, a TIR prism and a projection objective lens. The light emitted by the semiconductor laser is refracted by the TIR prism and then incident on the MEMS imaging chip, and after modulation, it is projected onto the photonic crystal transparent mask assembly 1 by the projection objective lens.

[0027] This device is worn on the head of the staff who needs to use it. When working, the semiconductor laser emits a high-brightness and highly collimated laser beam. After being refracted by the total reflection prism of the TIR prism, the optical path direction is adjusted so that it accurately enters the MEMS imaging chip. The MEMS imaging chip quickly modulates the laser beam through the microelectromechanical system (MEMS) to form a dynamic image signal. The modulated laser image is projected onto the photonic crystal transparent mask assembly 1 through the ultra-short focal length optical system of the projection objective. The photonic crystal transparent mask assembly 1 of this device is composed of a flexible photonic crystal film 12. Due to the use of flexible materials, the mask can adapt to different curvatures and is suitable for wearable devices such as helmets and goggles. The helmet assembly 2 and the structural assembly 4 play a role in fixing and supporting the entire device. With a lightweight design, it ensures wearing comfort and at the same time provides a quick-release interface for easy maintenance or replacement of modules. This device enables the mask to maintain a light transmittance of more than 70% when displaying images through photonic crystal technology, ensuring that users can clearly observe the external environment. The flexible photonic crystal film 12 used can be bent and fitted to different curved surfaces, expanding the application scenarios and can better adapt to different working requirements.

[0028] The photonic crystal transparent mask assembly 1 includes a helmet mask 11 and a flexible photonic crystal film 12; The flexible photonic crystal film 12 has a phase modulation layer and a phase compensation layer, which are used to selectively reflect the projection light and maintain the transparency of the ambient light. In this embodiment, the flexible photonic crystal film 12 is disposed at the visual field opening of the helmet mask 11. Due to the flexible nature of the flexible photonic crystal film 12, it can adapt to helmet masks 11 of different shapes. The helmet mask 11 plays a protective role for the internal flexible photonic crystal film 12, improving the applicability of this device. When the projection light of the modulated laser image is incident, the phase modulation layer selectively reflects light at a specific angle to form a clear image; at the same time, the phase compensation layer ensures that the ambient light penetrates without interference and maintains high transparency.

[0029] A signal driving board and a laser driving board are provided inside the helmet assembly 2. The signal driving board is used to receive external input signals, and the laser driving board is used to drive the semiconductor laser. The signal driving board receives external input signals such as HDMI video signals or RS232 control instructions, decodes them and converts them into driving signals recognizable by the MEMS imaging chip. The laser driving board accurately regulates the power, frequency and switching timing of the semiconductor laser according to the instructions of the signal driving board to ensure the stable output of the laser beam.

[0030] The semiconductor laser of the optical engine assembly 3 is a low-power and high-beam-quality laser, which can work stably in harsh environments.

[0031] The MEMS imaging chip is a micro high-resolution imaging device, which is used to modulate laser light to form an image.

[0032] The projection objective lens is an ultra-short focal length optical system that can achieve clear projection at a short distance. It should be noted that the ultra-short focal length optical system adopts existing technologies and will not be elaborated here.

[0033] The working power supply of the helmet assembly 2 is DC-12V input, which supports a low-power operation mode to improve the battery life.

[0034] The above embodiments only represent certain implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention; therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A super-short focus laser flexible transparent display mask, characterized in that: including a photonic crystal transparent mask assembly (1) that receives a display signal and is used to implement a transparent display function; a helmet assembly (2) that is used to fix the mask and provide signal driving; an optical engine assembly (3) that is used to project an image onto the photonic crystal transparent mask assembly (1); a structural assembly (4) that is used to support and fix each electronic component; wherein, the optical engine assembly (3) includes a semiconductor laser, a MEMS imaging chip, a TIR prism, and a projection objective lens. The light emitted by the semiconductor laser is refracted by the TIR prism and then incident on the MEMS imaging chip, and after being modulated, it is projected onto the photonic crystal transparent mask assembly (1) by the projection objective lens.

2. The ultra-short focus laser flexible transparent display face mask according to claim 1, characterized in that: The photonic crystal transparent mask assembly (1) includes a helmet mask (11) and a flexible photonic crystal film (12); The flexible photonic crystal film (12) has a phase modulation layer and a phase compensation layer, and is used to selectively reflect projection light and maintain the transparency of ambient light.

3. The ultra-short focus laser flexible transparent display face mask according to claim 1, wherein: A signal driving board and a laser driving board are provided inside the helmet assembly (2). The signal driving board is used to receive an external input signal, and the laser driving board is used to drive the semiconductor laser.

4. The ultra-short focus laser flexible transparent display face mask according to claim 1, characterized in that: The semiconductor laser of the optical engine assembly (3) is a low-power, high-beam-quality laser.

5. The ultra-short focus laser flexible transparent display face mask according to claim 1, wherein: The MEMS imaging chip is a miniature high-resolution imaging device.

6. The ultra-short focal length laser flexible transparent display face mask according to claim 1, wherein: The projection objective lens is an ultra-short focal length optical system.

7. The ultra-short focus laser flexible transparent display face mask according to claim 1, characterized in that: The operating power supply of the helmet assembly (2) is a DC-12V input.

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