WO2018187955A1

WO2018187955A1 - Near-eye display method having focusing effect

Info

Publication number: WO2018187955A1
Application number: PCT/CN2017/080202
Authority: WO
Inventors: 陈台国; 蔡宏斌
Original assignee: 陈台国; 蔡宏斌
Priority date: 2017-04-12
Filing date: 2017-04-12
Publication date: 2018-10-18

Abstract

A near-eye display method having a focusing effect, wherein at least one or two display modules (1) processed by collimation technology and at least one image output module (2) may be arranged on a near-eye display, wherein at least one image may be outputted to the display module (1) by means of the image output module (2) (101); and light beams emitted by any pixel in the at least one or two display modules (1) processed by collimation technology may overlap, so that the image outputted by the image output module (2) may be focused by means of overlapping the light beams emitted by at least two pixels (102).

Description

Near-eye display method with focusing effect

Technical field

The invention relates to a near-eye display method with focusing effect, in particular to a method capable of overlapping beams emitted by any pixel on one or two display modules to generate focus, so that the output image can be clearly displayed. The near eye display method.

Background technique

In response to the increasing demand for instant information in modern society, the delivery of on-demand information has received much attention. The near-eye display is a good choice for portable personal information devices because of its portability and the ability to update and deliver images, colors or text at any time in conjunction with electronic devices. Early near-eye displays were mostly military or government use. Recently, some manufacturers have seen business opportunities and introduced near-eye displays to homes. In addition, entertainment-related industry also sees the potential of this market, such as home game instruments and game software related manufacturers have invested in research and development.

Currently, the near-eye display (NED) includes a head-mounted display (HMD) that projects images directly into the viewer's eyes. This type of display can overcome other action display form factors by synthesizing a virtual large-format display surface. Available in a limited screen size, or for virtual or augmented reality applications.

The near-eye display can be subdivided into two major categories: immersive displays and see-through displays. An immersive display can be employed in a virtual reality (VR) environment to fully encompass the user's field of view using a composite rendered image. In augmented reality (AR) applications, a see-through display can be used in which text, other synthetic annotations, or images can be overlaid in the field of view of the user in a physical environment. In terms of display technology, AR applications require a translucent display (eg, by optical or electro-optic methods) such that a near-eye display can be used to simultaneously view the physical world.

However, since the human eye cannot focus (focus) on the fact that the object is placed at a close distance (for example, when the user is wearing glasses, reading the distance between the lens of the magnifying glass and the user's eyes). Difficult to construct. Therefore, the near-eye display must be adjusted to make the viewer comfortable to use, otherwise it will lead to the occurrence of defocus, etc., but the traditional use of complex and cumbersome optical components to adjust, but because of the near-eye display Most of them must be worn directly on the viewer's head, so too clunky near-eye displays are often not acceptable to consumers.

Therefore, in order to overcome the above problem, if the beams emitted by any of the pixels on one or two display modules can be overlapped to produce focus, so that the output image can be clearly presented, thus eliminating the need for bulky optical components. It also saves the extra cost of using bulky optical components, which should be an optimal solution.

Summary of the invention

It is an object of the present invention to provide a near-eye display method having a focusing effect that causes beams emitted by any of the pixels on one or two display modules to overlap to produce focus so that the output image can be clearly presented.

In order to achieve the above object, the present invention discloses a near-eye display method having a focusing effect, which is characterized in that:

At least one or at least two display modules and at least one image output module capable of being processed by the collimation technology can be disposed on a near-eye display, and at least one image can be output to the display module through the image output module Up;

The beams emitted by any of the pixels on the display module of one or at least two collimated technologies can be overlapped so that the image output by the image output module can be transmitted through at least two pixels. The beams overlap to produce focus.

The collimation technique is used to direct the direction of the light beam emitted by any of the pixels on the display module.

The collimation technology is used to guide the light through the micro-lens technology, the optical well technology or the micro-lens technology combined with the photo-well technology to guide the light on the display module, wherein the micro-lens technology changes the light through at least one microlens. And the light well technology uses a light well to make the light passing through the well straight forward.

The display module can be processed by using a collimation technique or a microlens technology to make the display module have a positive light guiding effect.

The manufacturing process of the display module is made of a semiconductor.

Among them, it can be processed by the lead angle technique to adjust the image display angle of the light beam emitted by any pixel, so that the light beam emitted by any pixel on the two or more display modules processed by the collimation technique The lines can overlap to produce focus.

The lead angle technique is configured to perform a cornering process for each pixel or a cornering process for each image to make the angle of each image output to the display module different.

The display module is a transparent display or a non-transparent display.

Among them, only one display module processed by the collimation technology can perform time-difference interactive imaging so that the light beams emitted by any pixel in a short time can overlap at least twice to generate focus.

The display module can be a flat single layer display, a flat multi-layer display, a curved single layer display, a curved multi-layer display or a flat/curved multi-layer display.

Wherein, when the display module is a curved multi-layer display or a planar multi-layer display, beams emitted by any pixel on different layers overlap to produce a focused image, which may result in different focusing distances due to multiple layers, Can change the depth of field.

The near-eye display further includes a light field capturing module, wherein the light field capturing module is capable of capturing and capturing a multi-point light field signal of the image in front of the display module, and inputting the light field signal into the display module The multi-point light field signal is emitted by the display module through a plurality of pixels to emit a light beam, and the light beams emitted by the plurality of pixels overlap to generate an image that is focused to represent a multi-point light field.

In addition, the multi-point light field signal captured by an external device can be captured, and the multi-point light field signal captured by the display module transmits the light beam through multiple pixels, and passes through multiple pixels. The emitted beams overlap to produce an image that is focused to represent a multi-point light spot.

The image adjustment module is further connected to the image output module for enabling the image output by the image output module to transmit at least two images. The beams emitted by the pixels overlap to produce a focused image for comparison and adjust the overlapped angle so that the focused image can be identical to the image output by the image output module.

Through the above, the present invention can achieve the above-mentioned near-eye display method with focusing effect, which can make the beams emitted by any pixel on one or two display modules overlap to generate focus, so that the output image can be clearly displayed. This eliminates the need for bulky optical components and also saves the extra cost of using bulky optical components.

DRAWINGS

Fig. 1 is a flow chart showing a near-eye display method with a focusing effect of the present invention.

2 is a schematic view showing the architecture of a near-eye display of the near-eye display method with a focusing effect of the present invention.

FIG. 3A is a side view showing the structure of a display module of the near-eye display method with the focusing effect of the present invention. FIG.

FIG. 3B is a schematic view showing the front structure of the display module of the near-eye display method with the focusing effect of the present invention.

Fig. 4 is a first embodiment diagram of a near-eye display method having a focusing effect of the present invention.

Fig. 5 is a second embodiment of the near-eye display method with focusing effect of the present invention.

Fig. 6 is a third embodiment of the near-eye display method with focusing effect of the present invention.

Fig. 7 is a fourth embodiment of the near-eye display method with focusing effect of the present invention.

Fig. 8 is a fifth embodiment of the near-eye display method with focusing effect of the present invention.

Fig. 9A is a sixth embodiment of the near-eye display method with focusing effect of the present invention.

Fig. 9B is a sixth embodiment of the near-eye display method with focusing effect of the present invention.

Figure 10A is a schematic illustration of light transmission through a light well in the present invention.

Fig. 10B is a schematic view showing the addition of a microlens in the present invention.

detailed description

Other details, features, and advantages of the present invention will be apparent from the following description of the preferred embodiments.

Please refer to FIG. 1 , which is a schematic flow chart of a near-eye display method with a focusing effect according to the present invention. As can be seen from the figure, the steps are as follows:

(1) at least one or at least two display modules and at least one image output module capable of being processed by the collimation technology can be disposed on a near-eye display, wherein at least one image can be output to the display through the image output module 101 on the module;

(2) The beam emitted by any of the pixels on one or at least two of the collimated display modules can be overlapped so that the image output by the image output module can pass at least two pixels. The emitted beams overlap to produce a focus 102.

As shown in FIG. 2, the near-eye display has at least one display module 1, an image output module 2, an image adjustment module 3, and a light field capture module 4, wherein the display module 1 passes by Collimation technology processing, wherein the collimation technique is used to direct the direction of light of a light beam emitted by any pixel on the display module, and the collimation technique is as follows:

(1) directing light through the microlens technology on the display module 1, wherein the microlens technology changes the light through at least one microlens;

(2) directing light through a light well technique on the display module, wherein the light well technology transmits a light well through the light well to make the light passing through the light well straight forward

(3) introducing light rays through the microlens technology on the display module to guide the positive light;

(4) In the manufacturing process of the display module 1, the collimation technology or the microlens technology can be used for processing, so that the display module has the effect of guiding the light to achieve the purpose of image focusing.

Further, as can be seen from FIG. 10A, when the light source 11 passes through the light well 112 formed by the above-mentioned optical well technology, the light 110 will advance straight, but since the light has scattering characteristics, part of the light 110 will still diverge, so As shown in Fig. 10B, if a microlens 113 is added to the optical well 112, the divergent light will be directed to allow the light 110 to go straight out.

However, in order to allow the beam lines emitted by any two pixels to overlap and focus, the present invention must be processed by a lead angle technique to adjust the image display angle of the beam emitted by any pixel, wherein the lead angle technique processing system In order to perform a cornering process for each pixel or a cornering process for each image, the angle of each image output to the display module is different.

The lead angle technique mentioned in the present invention is to perform a cornering process for each pixel or a cornering process for each image, so that the angle of each image outputted to the display module 1 is different, so that two The above images can be overlapped and merged. The above mentioned lead angle technique is described as follows:

(1) The lead-in processing can be performed on the display module 1 so that the direction of the light can be adjusted at the lead angle of the display module 1 to achieve overlapping and converging of two or more images;

(2) The image display angles output by the image output module 2 can be made different so that two or more images can be overlapped and merged. In this state, the angle at which the image output module 2 itself outputs images must be adjusted.

When the near-eye display uses two display modules 1, since both display modules 1 are processed by the collimation technique, each pixel can directly emit a beam of light, and the lens is processed to adjust any pixel. The image display angle of the emitted light beam is as shown in FIG. 3A. The display module 1 has a plurality of light sources 11 (Lens), and the light source 11 has a plurality of pixels 111 (pixel, the pixel 111 can For the three values of RGB adjustment, for example, the pixel 111 can be adjusted to be an R value, a G value, or a B value).

As shown in FIG. 3B, the illumination source 11 on the front side of the display module 1 can have a plurality of different/identical RGB pixels 111 (for example, the inside of the illumination source 11 can be more than one different/same RGB pixels 111), or It is possible to have only one pixel 111 inside the light source 11 (the pixel 111 can be an R value, a G value, or a B value).

The display module 1 can be a transparent display or a non-transparent display, and the display module 1 can also be a flat single layer display, a flat multi-layer display, a curved single layer display, a curved multi-layer display or a plane. / curved multi-layer display, and for multi-layer displays are explained as follows:

(1) When the display module 1 is a curved multi-layer display, beams emitted by any of the pixels on different layers overlap to produce a focused image, which may result in different focus distances due to multiple layers to change the depth of field. ;

(2) When the display module 1 is a planar multi-layer display, time-interval interactive imaging is required to enable the beams emitted by any of the pixels on different layers to overlap and produce a focused image, and the plane is more Layer displays can produce different focus distances due to the multi-layer structure to be able to change the depth of field.

As shown in FIG. 4, when the display module 1 is a planar multi-layer display, the beams emitted by the pixels aligned by the first layer plane 12 and the second layer plane 13 can overlap to form a human eye 5 can be seen. Focused image 61.

As shown in FIG. 5, when the display module 1 is a curved multi-layer display, the beams emitted by the pixels aligned by the first layer curved surface 14 and the second layer curved surface 15 can overlap to form a human eye 5 can be seen. The focused image 62, but due to the characteristics of the curved surface, it is possible to adjust the image size of two or more curved surfaces or adjust the curvature of the curved surface so that the beams emitted by the collimated pixels can more accurately overlap. .

As shown in FIG. 6 , when the display module 1 is a curved/planar hybrid multi-layer display, the beams emitted by the pixels aligned by the first layer plane 16 and the second layer curved surface 17 can overlap to form the human eye 5 . The focused image 63 can be seen, but due to the characteristics of the curved surface, it is necessary to adjust the image size of two or more curved surfaces or adjust the curvature of the curved surface so that the beam emitted by the collimated pixel can be more Accurate overlap.

As shown in FIG. 7 , when the display module 1 is two planar single-layer displays, the beams emitted by the pixels of the two different display modules 1 can be overlapped to form a focused image 64 that can be seen by the human eye 5 .

In addition, when the display module 1 is two planar single-layer displays, the range of light beams emitted by any of the pixels on the two display modules 1 can also be expanded. As shown in FIG. 8, two display modes can be enabled. The light beams emitted by any of the pixels on the group 1 can be partially overlapped, so that the image output by the image output module 2 can be overlapped by the beams emitted by the at least two pixels to generate a focused image 65, wherein The angle range of the light beam emitted by any pixel on the display module 1 can be 0 to 40 degrees.

When the display module 1 is a single flat/curved single-layer display, it is impossible to use two display modes. Group 1 is general, so time-interval interactive imaging must be performed so that the beams emitted by any of the pixels can overlap at least twice in a short time to produce focus, as shown in FIG. 9A, one of the pixels on the display module 1 The first beam image 66 will be sent first. Then, as shown in FIG. 9B, another pixel on the display module 1 will first emit a second beam image to overlap with the first beam image. The focused image 67 that the eye 5 can see.

In addition, the light field capturing module 4 can capture and capture the multi-point light field signal of the image in front of the display module 1 and input it into the display module 1 to be multi-pointed by the display module 1 The light field signal emits a light beam through a plurality of pixels, and the light beams emitted by the plurality of pixels overlap to generate an image that is focused to represent a multi-point light field;

To further explain the light field technology, the so-called light field refers to the collection of light in any direction from any point in space. In the case of a light field camera, it is a lens (Main Lens) and image of a general camera. In the middle of the sensor (Photosensor), insert a microlens array (Microlens Array) consisting of neatly arranged miniature lenses, one for each pixel;

Therefore, the light field camera (light field capturing module 4) can completely record the information of most of the light transmitted through the lens, such as the intensity of the light, the trajectory of the light, the direction of the light, etc., and the present invention further develops the light. The information is transmitted through the beam of light and is focused by at least two overlaps to present a focused image represented by the multi-point light field;

However, the present application can also transmit the multi-point light field signal captured by an external device directly to the near-eye display without using the light field capturing module 4 (rather than through the optical field capturing mode). The group 4 captures the multi-point light field signal), and then the display module 1 transmits the captured multi-point light field signal through a plurality of pixels to emit a light beam, and the light beams emitted by the plurality of pixels overlap. Producing an image showing the focus of the multi-point light scene.

In addition, since the image displayed by the conventional light field camera is a two-dimensional plane image, after the technique of the present application, the display module 1 transmits the captured multi-point light field signal through a plurality of pixels. The light beam, and the overlapping of the light beams emitted by the plurality of pixels, produces an image in which the focus represents a multi-point light field, and the focused image is generated by the overlapping of the beams emitted by any of the pixels on the different layers. Layers and different focusing distances can be used to change the depth of field. Therefore, the multi-point light field signal captured by the present application can restore the image with depth of field through the multi-layer structure (the processing output of the general light field signal can only present a plane. And can't achieve the effect of depth of field).

In addition, since the focused image and the actual image may have some errors, the image output module 2 connected to the image output module 2 must pass through the image outputted by the image output module 2 The beams emitted by the at least two pixels overlap to produce a focused image for comparison and adjust the overlapped angle to adjust the focused image to be as close as possible or identical to the image output by the image output module.

The near-eye display method with focusing effect provided by the present invention has the following advantages when compared with other conventional technologies:

1. The present invention enables the beams emitted by any of the pixels on one or two display modules to be overlapped to produce a focus so that the output image can be clearly displayed, thus eliminating the need for bulky optical components. The additional cost of using bulky optical components can be saved.

The present invention has been disclosed above by the above-described embodiments, and is not intended to limit the present invention. Any one skilled in the art can understand the foregoing technical features and embodiments of the present invention without departing from the invention. In the spirit and scope of the present invention, the scope of the invention is to be determined by the appended claims.

Claims

A near-eye display method with a focusing effect, characterized in that the method is:

At least one or at least two display modules and at least one image output module capable of being processed by the collimation technology can be disposed on a near-eye display, and at least one image can be output to the display module through the image output module Up;

The beams emitted by any of the pixels on the display module of one or at least two collimated technologies can be overlapped so that the image output by the image output module can be transmitted through at least two pixels. The beams overlap to produce focus.
The near-eye display method with a focusing effect according to claim 1, wherein the collimating technique is used to guide a light direction of a light beam emitted by any pixel on the display module.
The near-eye display method with a focusing effect according to claim 2, wherein the collimating technique is guided by the micro-lens technology, the photo-well technology or the micro-lens technology combined with the photo-well technology on the display module. Light, in which the microlens technology changes light through at least one microlens, and the well technique uses a light well to allow light passing through the well to advance straight.
The near-eye display method with a focusing effect according to claim 2, wherein the display module can be processed by using a collimation technique or a microlens technology, so that the display module has a guiding light. Effect.
The near-eye display method with a focusing effect according to claim 4, wherein the manufacturing process of the display module is made of a semiconductor.
A near-eye display method with a focusing effect according to claim 1, wherein it is more capable of being processed by a lead angle technique to adjust an image display angle of a light beam emitted by any pixel so that two or more passes are passed. The beams emitted by any of the pixels on the display module processed by the collimation technique can overlap to produce focus.
A near-eye display method with a focusing effect according to claim 5, wherein the lead angle technique is processed to perform a cornering process for each pixel or a cornering process for each image to output each of the pixels to the image. The angle of the image on the display module is different.
The near-eye display method with a focusing effect according to claim 1, wherein the display module is a transparent display or a non-transparent display.
A near-eye display method with a focusing effect according to claim 1, wherein only one display module processed by the collimation technique is capable of performing time-difference interactive imaging so that any pixel is emitted in a short time. The beams can overlap at least twice to produce focus.
The near-eye display method with a focusing effect according to claim 1, wherein the display module can be a flat single layer display, a planar multi-layer display, a curved single layer display, a curved multi-layer display or a flat/surface Multi-layer display.
The near-eye display method with a focusing effect according to claim 10, wherein when the display module is a curved multi-layer display or a planar multi-layer display, beams emitted by any of the pixels on different layers overlap. Producing a focused image will result in different focus distances due to multiple layers to change the depth of field.
The near-eye display method with a focusing effect according to claim 1, wherein the near-eye display further comprises a light field capturing module, wherein the light field capturing module is capable of capturing and capturing the front of the display module The multi-point light field signal of the image is input into the display module, so that the multi-point light field signal is transmitted by the display module through a plurality of pixels to emit a light beam, and the light beams emitted by the plurality of pixels overlap. The resulting image shows a multi-point light representation.
The near-eye display method with a focusing effect according to claim 1, wherein a multi-point light field signal captured by an external device is captured, and the multi-point light captured by the display module is captured. The field signal emits a light beam through a plurality of pixels, and the light beams emitted by the plurality of pixels overlap to generate an image that is focused to represent a multi-point light field.
The near-eye display method with a focus effect according to claim 1, wherein the near-eye display further comprises an image adjustment module, wherein the image adjustment module is connected to the image output module for enabling Comparing the image output by the image output module with the image transmitted by the at least two pixels to generate a focused image and adjusting the overlapped angle, so that the focused image can be combined with the image output mode The images output by the group are the same.