TWI509288B - Reflective display - Google Patents

Description

Reflective display

The present invention relates to a display, and more particularly to a reflective display that can be worn on a user's head.

With the development of display devices, the size and weight of display devices have progressed toward miniaturization. In recent years, head-mounted displays have been developed as an image display for virtual reality (VR) systems to be worn on the user's head, and the field of application is becoming more widespread. The head-mounted display places the display element in front of the user's eyes in the form of glasses, and projects a virtual image on the user's eyes through the distance to generate a wide-angle view, and allows the user to receive image information anywhere. However, the conventional head-mounted display is difficult to be reduced in size and weight because the components are often too complicated. Therefore, there is a problem that the user feels uncomfortable when wearing.

As described above, the inventors of the present invention have been painstakingly researching for many years, thinking about and designing a reflective display to improve the lack of the prior art, thereby enhancing the industrial use and utilization.

In view of the above-described problems of the prior art, it is an object of the present invention to provide a reflective display that solves the problem of poor wear comfort due to the difficulty in miniaturization and weight reduction of conventional head-mounted displays.

In accordance with the purpose of the present invention, a reflective display is provided that is disposed in a headset that includes a mirror, an image display module, a beam splitter, and a light source. The mirror is disposed on the headset and corresponds to the position of at least one eye of the user. The image display module is disposed on the headset, and is disposed opposite to the mirror, and the image display module projects an image. The beam splitter is disposed on the headgear and is interposed between the image display module and the mirror. The light source is disposed on the headset and is interposed between the beam splitter and the image display module. The image is projected to the mirror through the beam splitter, so that the image is reflected to the eyeball of the user to form a virtual image seen by the user, and the light source projects the beam to the beam splitter to reflect the beam to the image display module by the beam splitter. .

Preferably, the mirror can be a mirror having partial reflection characteristics and partial penetration characteristics.

Preferably, the mirror can be a concave mirror.

Preferably, the image display module can be a liquid crystal display device, and the light beam can be white light.

Preferably, the image and the virtual image may be a multi-color or full-color.

According to another aspect of the present invention, a reflective display is provided, which is composed of a head mounted device, a mirror, an image display module, a beam splitter and a light source.

In view of the above, a reflective display in accordance with the present invention may have one or more of the following advantages:

(1) The reflective display of the present invention is provided with a mirror on the leading edge of a headgear such as a helmet, glasses, snow mirror, etc., so that the user can view the virtual image to enhance the comfort of wearing for a long time.

(2) The reflective display of the present invention can realize the effect of allowing a user to view a virtual image by using a compact component, thereby making the reflective display compact and lightweight.

1‧‧‧reflective display

10‧‧‧Mirror

20‧‧‧Image display module

21‧‧‧ images

30‧‧‧beam splitter

40‧‧‧Light source

41‧‧‧ Beam

9‧‧‧ head mounted device

Figure 1 is a schematic view showing the structure and optical path of a reflective display of the present invention.

Figure 2 is a schematic view of a first embodiment of a reflective display of the present invention.

Figure 3 is a schematic illustration of a second embodiment of a reflective display of the present invention.

Figure 4 is a schematic view showing a third embodiment of the reflective display of the present invention.

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the present inventors, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description, and is not necessarily the true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

The embodiments of the reflective display according to the present invention will be described below with reference to the related drawings. For the sake of understanding, the same components in the following embodiments are denoted by the same reference numerals.

Please refer to FIG. 1 , which is a schematic diagram of the structure and optical path of the reflective display of the present invention.

The reflective display 1 of the present invention is provided on a head-mounted device such as a helmet, glasses or a snow mirror for the user to wear, and in this way, the user can perform virtual images for a long time (hereinafter referred to as Virtual image) to watch. The reflective display 1 of the present invention has a mirror 10, an image display module 20, a beam splitter 30 and a light source 40. The mirror 10 and the image display module 20 are disposed opposite to each other. The mirror 10 can be a concave mirror, and can have optical characteristics of partial reflection and partial penetration, or can have optical characteristics of total reflection. The beam splitter 30 has optical characteristics of partial reflection and partial penetration. It is disposed between the mirror 10 and the image display module 20 and is located on the optical path between the mirror 10 and the image display module 20. The light source 40 is disposed between the image display module 20 and the beam splitter 30.

The light source 40 projects a light beam 41 to the beam splitter 30 to reflect the light beam 41 to the image display module 20 by the reflection of the beam splitter 30. Thereby, the beam splitter 30 and the light source 40 can be utilized to achieve the effect of illumination when viewing a virtual image.

In other words, the image display module 20 can project an image 21. The image 21 is projected to the mirror 10 through the beam splitter 30, so that the image 21 is reflected by the reflection of the mirror 10 to the eyeball of the user to form a virtual image seen by the user. Thereby, the purpose of viewing the virtual image can be achieved.

It should be noted that, preferably, the mirror 10 and the image display module 20 may have a predetermined angle, for example, 30 to 60 degrees. Thereby, the image reflection can be appropriately performed to enter the eyeball of the user. In addition, when the mirror 10 is partially reflective and partially penetrated, the optical characteristics are The user can also see the external scene through the mirror 10 by virtue of the optical characteristics. In other words, while viewing the virtual image, the user can also see the external scene.

The image display module 20 can be a liquid crystal display device, such as a reflective light valve display. Therefore, the image display module 20 can project or generate a multi-color or full-color image 21. Correspondingly, the light source 40 can be configured to produce a white light beam 41. But it is not limited to this.

The reflective display 1 of the present invention is directly projected onto the mirror 10 by the image display module 20 to form a virtual image, and is assisted by the beam splitter 30 and the light source 40. As a result, the reflective display 1 of the present invention has a compact component, so that it can be easily miniaturized and lightened, thereby improving the comfort of wearing for a long time.

Please refer to FIG. 2, which is a schematic diagram of a first embodiment of a reflective display of the present invention. In the present embodiment, the configuration of each component is similar to the foregoing, and similarly, it will not be described again.

As shown in the figure, the mirror 10, the image display module 20, the beam splitter 30 and the light source 40 of the reflective display 1 can be disposed on the head mounted device 9. In the present embodiment, the head mounted device 9 is The helmet is exemplary and not limited to this.

In other words, the mirror 10 can be disposed at the front edge of the head mounted device 9, which can be an additional component, or can be directly disposed as a windshield component. In addition, the image display module 20, the beam splitter 30, and the light source 40 can be integrated to form a modular component, and are disposed on the head mounted device by means of magnetic attraction, adhesion, clamping, snapping or locking. 9. Certainly, the image display module 20, the beam splitter 30, and the light source 40 may also be disposed in the non-integrated form, and are respectively disposed on the head mounted device 9 by means of magnetic attraction, adhesion, clamping, snapping or locking.

Therefore, when the user wears the head mounted device 9 with the reflective display 1 and the auxiliary illumination of the light source 30 and the light source 40, the image 21 of the image display module 20 can be projected through the beam splitter 30 and projected onto the mirror. At 10, the reflection of the mirror 10 causes the image 21 to properly form a virtual image for viewing by the user.

Please refer to FIGS. 3 and 4, which are schematic views of a second embodiment and a third embodiment of the reflective display of the present invention, respectively. In the foregoing embodiments, the headgear device 9 is exemplified by a helmet, and in the second embodiment and the third embodiment, glasses and a snow mirror are used as exemplary embodiments, but Limited. The operations or applications of the second embodiment and the third embodiment are similar to those of the first embodiment, and will not be further described herein.

In the above embodiments, it is particularly noted that the image 21 of the image display module 20 is emitted by the image display module 20 and is projected through the beam splitter 30 and projected onto the mirror 10. The image display module 20 The ratio of the image 21 does not change. The image 21 of the image display module 20 is changed to the rear of the mirror 30, and the proportion of the image 21 of the image display module 20 is changed by the mirror 30. For example, the image 21 of the image display module 20 is enlarged to form an image. Virtual image.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1‧‧‧reflective display

10‧‧‧Mirror

20‧‧‧Image display module

21‧‧‧ images

30‧‧‧beam splitter

40‧‧‧Light source

41‧‧‧ Beam

Claims (4)

A reflective display is composed of the following components: a wearing device; a reflecting mirror is a concave reflecting mirror disposed on the wearing device and corresponding to a position of at least one eye of a user; The display module is disposed on the headset, the image display module is disposed opposite to the mirror, and the image display module projects an image; a beam splitter is disposed on the headset, and the display module is disposed on the headset a beam splitter is interposed between the image display module and the mirror, and the image is projected to the mirror through the beam splitter, so that the image is reflected to the eyeball of the user to form one of the user's views. a virtual image; and a light source disposed between the beam splitter and the image display module, the light source projecting a light beam to the beam splitter to reflect the light beam by the beam splitter to The image display module. The reflective display of claim 1, wherein the mirror is a mirror having partial reflection characteristics and partial penetration characteristics. The reflective display of claim 1, wherein the image display module is a liquid crystal display device, and the light beam is white light. The reflective display of claim 3, wherein the image and the virtual image are a multi-color or full-color.