CN215494383U

CN215494383U - Curved surface integrated imaging 3D display

Info

Publication number: CN215494383U
Application number: CN202121624748.0U
Authority: CN
Inventors: 徐凤; 汤玛斯·葛达; 基摩·卡瑞斯德; 朱哈·连达拉; 乔纳森·格伦
Original assignee: Bibo Co ltd
Current assignee: Bibo Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-01-11
Anticipated expiration: 2031-07-16

Abstract

The utility model provides an integrated formation of image 3D display of curved surface, is the curved surface form on the whole, includes in proper order: the device comprises a 2D curved screen, an air gap with a gasket, a flexible substrate, a micro-lens array and at least one antireflection coating layer on the 2D curved screen, the flexible substrate and the micro-lens array. The utility model has the beneficial effects that: increased viewing angle, better 3D image quality, higher efficiency, and ease of manufacturing.

Description

Curved surface integrated imaging 3D display

Technical Field

The present invention relates to the field of integrated imaging displays. And in particular to curved surface integrated imaging 3D displays.

Background

Integrated imaging technology was first proposed by Lippmann. This is a display technique for recording and reproducing 3D scenes using a microlens array. Integrated imaging is an autostereoscopic and multi-angle 3D display technique that uses a double micro-lens array (MLA) to capture and replicate the light field of an object based on the principle of reversibility of light. The 3D display technology based on integrated imaging is a true 3D display technology. It can provide a real three-dimensional image with complete parallax, vivid colors and continuous viewpoints without wearing glasses, and can avoid visual fatigue due to sudden changes of parallax images in multi-viewpoint autostereoscopic display. This is an effective solution for naked eye 3D display.

Integrated imaging display devices typically include a two-dimensional display screen (e.g., a Liquid Crystal Display (LCD) panel) and a microlens array (MLA). Integrated imaging display devices operate by displaying an Elemental Image Array (EIA) image as a two-dimensional image on a two-dimensional display screen behind a microlens array. By refraction by the microlens array, different portions of the EIA image are refracted into different directions in three-dimensional space to form a three-dimensional image.

SUMMERY OF THE UTILITY MODEL

The main performance indicators of an integrated imaging display device include spatial resolution, angular resolution, viewing angle and displayable three-dimensional depth range. In existing integrated imaging and display devices, spatial resolution and angular resolution are a pair of contradictory criteria. In general, given a two-dimensional display screen, the product of spatial resolution and angular resolution is equal to the total resolution of the panel. Thus, if the spatial resolution is high, the angular resolution will decrease and vice versa.

An ideal integrated imaging display device should have high spatial resolution, high angular resolution and wide viewing angle. The higher spatial resolution may provide the user with details of the three-dimensional scene. The higher angular resolution provides the user with a continuous parallax variation and a three-dimensional experience. The wider viewing angle provides an immersive experience for the user.

Accordingly, there is a need for techniques that can improve the angular resolution, spatial resolution, and viewing angle of integrated imaging display devices.

The technical problems to be solved by the utility model are as follows:

1. a small viewing angle of the integrated imaging display;

2. the spatial resolution is low;

3. the angular resolution is low.

The utility model discloses a curved surface integrated imaging 3D display, which sequentially comprises: the device comprises a 2D curved screen, an air gap with a gasket, a flexible substrate, a micro-lens array and at least one antireflection coating.

Preferably, an antireflective coating on the flexible substrate is included.

Preferably, an antireflective coating on the microlens array is included.

Preferably an antireflection coating comprising a 2D curved screen.

Preferably, an antireflective coating comprising a 2D curved screen, an antireflective coating on a microlens array.

Preferably, the anti-reflection coating on the flexible substrate and the anti-reflection coating on the micro-lens array are included.

Preferably, the anti-reflective coating comprises an anti-reflective coating on a flexible substrate, an anti-reflective coating of a 2D curved screen.

Preferably, the flexible substrate comprises an antireflection coating on the flexible substrate, an antireflection coating of the 2D curved screen and an antireflection coating on the micro-lens array.

Preferably, the thickness of the anti-reflection coating is on the order of hundreds of nanometers.

Further, the display is curved as a whole.

Compared with the prior art, the utility model has the following beneficial effects:

1. increasing the viewing angle;

2. better 3D image quality;

3. higher efficiency;

4. the manufacture is easy;

5. the cost is low.

Drawings

FIG. 1 is a cross-sectional view of a display according to a first embodiment;

FIG. 2 is a cross-sectional view of a display according to a second embodiment;

FIG. 3 is a sectional view of a display device according to a third embodiment;

FIG. 4 is a sectional view of a display according to a fourth embodiment;

FIG. 5 is a sectional view of a display according to a fifth embodiment;

FIG. 6 is a sectional view of a display of the sixth embodiment;

fig. 7 is a cross-sectional view of the display of the seventh embodiment.

Detailed Description

The preferred embodiments of the present application will be described below with reference to the accompanying drawings for clarity and understanding of the technical contents thereof. The present application may be embodied in many different forms of embodiments and the scope of the present application is not limited to only the embodiments set forth herein.

The conception, the specific structure and the technical effects of the present invention will be further described below to fully understand the objects, the features and the effects of the present invention, but the present invention is not limited thereto.

Example one

As shown in fig. 1, the 3D display is a curved surface, and sequentially includes: the 2D curved screen comprises a 2D curved screen 100, an air gap 300 with a gasket, an antireflection coating 400 on a flexible substrate, a flexible substrate 500 and a micro-lens array 600.

The curved 3D flexible display is used, and has the characteristics of thinness, portability and low fragility. Displays with flexible form factors can be manufactured on curved surfaces and can change their shape, providing potential applications for mobile, wearable, and vehicle displays.

Curved surface integrated imaging 3D displays may provide enhanced 3D immersion and wider viewing angles.

An anti-reflective coating is used on the flexible substrate.

Anti-reflective (AR) coatings are optical coatings applied to the surface of lenses and other optical elements to reduce reflections. In a typical imaging system, this can improve optical efficiency by increasing transmission, enhancing contrast, and eliminating ghosting. Therefore, image resolution and quality can be improved.

The antireflective coatings used in the present invention are based on siloxane polymer solutions with a low refractive index for visible light. The refractive index and film thickness are adjustable. The siloxane polymer has the advantage of no yellowing, and thus the antireflective coating has high reliability and durability. The refractive index of the antireflective siloxane polymer film can be adjusted to match the refractive index of the substrate. The main rationale for AR coatings is that reflection of light from the outer surface of a single coating interferes with reflection from the interface between the coating and the substrate. If the refractive index of the coating material (n2) is equal to the substrate (n3) and the surrounding medium (n1, air or vacuum), i.e., n2 ═ SQRT (n1 × n 3).

For flexible substrates such as PET and PMMA, the refractive index of the anti-reflective coating is typically less than 1.28. The thickness of the antireflective coating is typically on the order of hundreds of nanometers. The silicone polymer solution can be coated on the microlens substrate by various coating methods such as spray coating, roll-to-roll and slot coating methods. The AR film can be thermally cured at temperatures below 100 ℃, compatible with flexible substrate materials.

Example two

As shown in fig. 2, similar to the first embodiment, except that the antireflection coating 400 on the flexible substrate is absent, but an antireflection coating 700 on the microlens array is included.

EXAMPLE III

As shown in fig. 3, the difference is that the antireflection coating 400 on the flexible substrate is not included, but the antireflection coating 200 of the 2D curved panel is included, similar to the first embodiment.

Example four

As shown in fig. 4, the first embodiment is similar except that the antireflection coating 400 on the flexible substrate is absent, but includes the antireflection coating 200 of the 2D curved screen, and the antireflection coating 700 on the microlens array.

EXAMPLE five

As shown in fig. 5, similar to the first embodiment, an antireflection coating 700 on the microlens array is additionally included.

EXAMPLE six

As shown in fig. 6, similar to the first embodiment, an antireflection coating 200 of a 2D curved screen is additionally included.

EXAMPLE seven

As shown in fig. 7, similar to the first embodiment, an antireflection coating 200 of a D-curved screen and an antireflection coating 700 on a microlens array are further included.

The foregoing detailed description of the preferred embodiments of the present application. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the concepts of the present application should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a curved surface integrated imaging 3D display which characterized in that includes in proper order: the device comprises a 2D curved screen, an air gap with a gasket, a flexible substrate, a micro-lens array and at least one antireflection coating.

2. The display of claim 1, comprising an anti-reflective coating on the flexible substrate.

3. The display of claim 1, comprising an anti-reflective coating on the microlens array.

4. The display of claim 1, comprising an anti-reflective coating of the 2D curved screen.

5. The display of claim 1, comprising an anti-reflective coating of a 2D curved screen, an anti-reflective coating on a microlens array.

6. The display of claim 1, comprising an anti-reflective coating on the flexible substrate, an anti-reflective coating on the microlens array.

7. The display of claim 1, comprising an anti-reflective coating on a flexible substrate, an anti-reflective coating of a 2D curved screen.

8. The display of claim 1, comprising an anti-reflective coating on a flexible substrate, an anti-reflective coating of a 2D curved screen, an anti-reflective coating on a microlens array.

9. The display of any one of claims 1-8, wherein any one of the anti-reflective coatings has a thickness on the order of hundreds of nanometers.

10. A display according to any of claims 1-8, characterised by being curved overall.