TWI635317B - Wide view angle head mounted display - Google Patents

Abstract

The present invention provides a wide viewing angle head mounted display, comprising: a front display panel and a corresponding left lens head and a right lens head; a first side display panel and a corresponding one of the first side lenses; and a second The side display panel and the corresponding one of the second side lens; wherein the first side display panel and the second side display panel are respectively disposed on the left side and the right side of the front display panel, and are respectively at right angles to the front display panel, The optical axes of the left lens head and the first side lens are perpendicular to each other, and the optical axes of the right lens head and the second side lens are perpendicular to each other.

Description

Wide viewing angle head mounted display

This invention relates to head mounted displays, and more particularly to a wide viewing angle head mounted display.

Head Mounted Display (HMD) - Head-mounted display, mainly divided into immersive and see-through types. Penetrating head-mounted displays are suitable for Augmented Reality (AR); immersive head-mounted displays are suitable for Virtual Reality (VR). The immersive head-mounted display mainly consists of components such as a panel display and an optical lens to form an image display system. For example, in an organic light-emitting diode (OLED) panel display, there are a plurality of red, blue, and green (R, G, B) light-emitting sub-pixels (Subpixels), which are composed of three primary color sub-pixel dots to form a pixel (pixel). ), and finally, these pixels are illuminated to form an image frame.

Some conventional head-mounted displays use a non-parallel lens design, meaning that there is an angular difference between the left-eye display panel/lens and the right-eye display panel/lens. However, the biggest problem with non-parallel lens designs is that users cannot wear their personal glasses when using a head-mounted display, and other focusing designs are required. In addition, astigmatism cannot be adjusted, which in turn increases the price and weight of the head-mounted display, resulting in a drop in user experience.

In view of this, there is a need for a wide viewing angle head mounted display to solve the above problems.

The present invention provides a wide viewing angle head mounted display, comprising: a front display panel and a corresponding left lens head and a right lens head; a first side display panel and a corresponding one of the first side lenses; and a second The side display panel and the corresponding one of the second side lens; wherein the first side display panel and the second side display panel are respectively disposed on the left side and the right side of the front display panel, and are respectively at right angles to the front display panel, The optical axes of the left lens head and the first side lens are perpendicular to each other, and the optical axes of the right lens head and the second side lens are perpendicular to each other.

In some embodiments, the front display panel is configured to play a left eye image and a right eye image, and the left eye image and the right eye image are respectively projected to the left eye lens and the right eye lens. The left and right eyes of the user.

In some embodiments, the first side display panel and the second side display panel are respectively configured to play a left-eye residual light image and a right-eye residual light image, and the left-eye residual light image system includes the left eye An extended viewing angle to the left of the image, the right-eye residual light image including an extended viewing angle to the right of the left-eye image.

In some embodiments, the first side display panel and the corresponding first side lens, and the second side display panel and the corresponding second side lens are adjustable in a horizontal direction.

In some embodiments, the left lens, the right lens, the first side lens, and the second side lens are integrated into one lens module.

In some embodiments, the front display panel is a flexible panel and its surface curvature corresponds to the lens module.

201‧‧‧ Left eye

202‧‧‧ right eye

210‧‧‧Left eye display panel

211‧‧‧left eye lens

220‧‧‧right eye display panel

221‧‧‧right eye lens

250‧‧‧Area

300‧‧‧ wide viewing head mounted display

310‧‧‧ front display panel

311‧‧‧Left lens

312‧‧‧right eye lens

313‧‧‧ lens module

320‧‧‧First side display panel

321‧‧‧ first side lens

330‧‧‧Second side display panel

331‧‧‧ second side lens

340, 341‧‧ ‧ left eye after sight

350, 351‧‧ ‧ right eye after sight

Figure 1 is a schematic diagram showing the range of viewing angles of the left and right eyes of the user.

Figure 2 is a schematic diagram showing a head mounted display of a conventional non-parallel lens design.

Figure 3 is a block diagram showing a wide viewing angle head mounted display in accordance with another embodiment of the present invention.

Figure 4 is a block diagram showing a wide viewing angle head mounted display in accordance with another embodiment of the present invention.

Figure 5 is a block diagram showing a wide viewing angle head mounted display in accordance with another embodiment of the present invention.

The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims.

Figure 1 is a schematic diagram showing the range of viewing angles of the left and right eyes of the user. The angle of view of the left and right eyes of an average person is approximately between 94 degrees and 104 degrees, and the viewing angle of the left and right eyes is approximately 210 degrees, as shown in FIG. In a head-mounted display, in order to allow the user to achieve a better immersion, the human eye angle must be included. The traditional head-mounted display often has a display range of its display panel. It is impossible to cover the range of the left and right eyes of the user. In addition, because each person's physiological structure is different, some users have a wider range of viewing angles, and the user experience is not good if a conventional head-mounted display is used.

Figure 2 is a schematic diagram showing a head mounted display of a conventional non-parallel lens design. As shown in FIG. 2, a conventional head-mounted display using a non-parallel lens design includes a corresponding left-eye lens of the left-eye display panel 210, and a right-eye display panel 220 and a corresponding right-eye lens 221, and is visible to the user. The range is between areas 250. The left eye 201 and the right eye 202 receive the left eye image and the right eye image played by the left eye display panel 210 and the right eye display panel 220 through the left lens head 211 and the right eye lens 221, respectively.

It should be noted that there is an angular difference between the left-eye display panel 210 and the right-eye display panel 220. The biggest problem with non-parallel lens designs is that users can't wear their personal glasses when using traditional head-mounted displays, and other focusing designs are needed. In addition, astigmatism cannot be adjusted, which in turn increases the price and weight of the head-mounted display, resulting in a drop in user experience.

In addition, if the overall viewing angle of the left and right eyes of the user is large, the left eye display panel 210 and the right eye display panel 220 of the conventional head mounted display need to be greatly increased in length if the range of the left and right eyes is included. This causes the lengths of the left-eye display panel 210 and the right-eye display panel 220 to be too long, which also greatly increases the weight and volume of the head-mounted display.

Figure 3 is a block diagram showing a wide viewing angle head mounted display in accordance with an embodiment of the present invention. In one embodiment, the wide-view head mounted display 300 mainly includes a housing 330, a front display panel 310, and corresponding left and right lens heads 311 and 312, a first side display panel 320, and a corresponding first side lens. 321 . The second side display panel 330 and the corresponding second side lens 331 . The left lens head 311 and the right lens head 312 are in parallel design, and are also parallel to the front display panel 310.

The front display panel 310 is mainly used to play image data from a main control terminal, for example, a left eye image and a right eye image. The left lens 311 is configured to refract the image of the left half of the front display panel 310 to the left eye of the user, and the left lens 311 is configured to refract the image of the right half of the front display panel 310 to the user. Right eye.

The first side display panel 320 and the second side display panel 330 are disposed at right angles to the front display panel 310, that is, the first side display panel 320 and the second side display panel 330 are respectively disposed on the left eye of the front display panel 310 and The right side is at right angles to the front display panel 310, respectively. In addition, the left lens 311 and the first side lens 321 are also designed at right angles, that is, the optical axes of the left lens 311 and the first side lens 321 are perpendicular to each other. Similarly, the right lens 312 and the second side lens 331 are also designed at right angles, that is, the optical axes of the right lens 312 and the second lens 331 are perpendicular to each other.

The first side display panel 320 is a screen extending from the left side of the scene of the image data in the front display panel 310, and the second side display panel 330 is a screen extending from the right side of the scene of the image data in the front display panel 310.

Generally, the image resolution of the user's left-eye residual light sight 340 and the right-eye residual light sight 350 is lower than that of the front viewing angle, so the first side display panel 320 and the second side display panel 330 In order to let the user feel that there are still scenes on the left and right sides, it is not because the front display panel cannot contain the left and right sides of the light, and the user's immersion is reduced. Therefore, the first side The display panel 320 and the second side display panel 330 may not have the same high resolution as the front display panel 310 (for example, FullHD or 4K resolution).

The first side lens 321 is configured to refract the image played by the first side display panel 320 to the left eye of the user, and the second side lens 331 is configured to refract the image played by the second side display panel 330. Cast to the user's right eye. For example, the resolution (or length) of the first side lens 321 needs to cover at least the left eye residual light sight 340 of the user. However, in order to conform to the physiological structure of most users, the resolution (or length) of the first side lens 321 is larger than that of the general user. Similarly, the resolution (or length) of the second side lens 331 is also larger than that of the average user.

In one embodiment, the wide viewing angle head mounted display 300 further includes a transmission interface and a display controller (not shown in FIG. 3). The transmission interface is used to receive image data from a host (for example, a left eye image and a right eye image, and a left remaining image and a right remaining image, for example, an RGB image), and the image data is transmitted through The display controller plays the left-eye image and the right-eye image on the front display panel 310, and plays the left-side residual light image and the right-side residual light image on the first side display panel 320 and the second side display panel 330, respectively. For example, the transmission interface may be a High Definition Multimedia Interface (HDMI) or a DisplayPort (DP) interface, but the invention is not limited thereto. In some embodiments, the front display panel 310 can be divided into a left eye display panel and a right eye display panel, and the left eye display panel and the right eye display panel are side by side and parallel, with no angular difference therebetween.

The display controller is configured to control display screens of the front display panel 310, the first side display panel 320, and the second side display panel 330. for example, The display controller can receive image data from a host through a transmission interface, for example, a left eye image and a right eye image, and a left remaining image and a right remaining image.

In addition, the wide-view head-mounted display 300 further includes a housing, and each of the optical components and the display panel may be disposed in the housing according to the foregoing arrangement, and the housing may include a strap or other auxiliary device (not shown) ) for the user to wear on the head to view the picture through the wide-view head mounted display 300.

Figure 4 is a block diagram showing a wide viewing angle head mounted display in accordance with another embodiment of the present invention. In the present invention, the design of the wide-view head-mounted display can be used when the user wears the glasses. Therefore, when designing the position of each component in the wide-view head-mounted display 300, the head shape of each user is taken into consideration. Or a problem with different eye depths. For example, the width of the glasses can be calculated using approximately 2 lens widths plus the width of the bridge. For example, the overall width of the small/narrow face is about 125 mm to 129 mm, and the medium face is about 130 mm to 134 mm. The large face is about 135 mm to 139 mm, and the wide face is about 140 mm to 145 mm. Therefore, the positional arrangement of the various elements in the wide viewing angle head mounted display 300 also takes into account various different eyeglass widths.

For example, the user can utilize the mechanism (not shown) in the wide-view head mounted display 300 to adjust the first side display panel 320 and the corresponding first side lens 321 and the second side display panel 330 and corresponding The offset of the second side lens 331.

Furthermore, the positions of the first side display panel 320 and the corresponding first side lens 321 can be adjusted within a predetermined range of the horizontal direction, and the positions of the second side display panel 330 and the corresponding second side lens 331 The adjustment can be made overall within a predetermined range in the horizontal direction.

For example, if the user's residual light angle of view is large, such as the left eye residual light sight 341 and the right eye residual light sight 351 in FIG. 4, the user can display the first side display panel 320 and corresponding The first side lens 321 and the second side display panel 330 and the corresponding second side lens 331 are adjusted to be closer to the user's head, thereby allowing the display range of the first side display panel 320 and the second side display panel 330 to be displayed. The left eye residual light sight 341 and the right eye residual light sight 351 of the user are covered.

Figure 5 is a block diagram showing a wide viewing angle head mounted display in accordance with another embodiment of the present invention. The components of the wide viewing angle head mounted display 500 are generally similar to the components of the wide viewing angle head mounted display 300, with the difference that the lenses 311, 312, 321, and 331 in the wide viewing angle head mounted display 300 can be integrated. The formed lens module 313 is replaced. It should be noted that although the lens module 313 is integrally formed, the optical structure is still for the front display panel 310 (including the refraction of the left eye image and the right eye image), and the first side display panel 320 (including the refraction of the left side of the backlight). The image) and the second side display panel 330 (including the refracted right side residual image). In some embodiments, the front display panel 310 can be implemented by a flexible panel. The surface curvature of the flexible panel corresponds to the surface curvature of the lens module 313, and the user can complete through the lens module 313. See the panoramic image for a better immersion.

The present invention has been disclosed in the above preferred embodiments, and is not intended to limit the scope of the present invention. Any one of ordinary skill in the art can make a few changes without departing from the spirit and scope of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

Claims (6)

A wide viewing angle head mounted display comprising: a front display panel and a corresponding left lens head and a right lens head; a first side display panel and a corresponding one of the first side lenses; and a second side display panel and Correspondingly, the first side display panel and the second side display panel are respectively disposed on the left side and the right side of the front display panel, and are respectively at right angles to the front display panel, wherein the left side The optical axis of the lens head and the first side lens are perpendicular to each other, and the optical axes of the right lens head and the second side lens are perpendicular to each other. The wide viewing angle head mounted display of claim 1, wherein the front display panel is configured to play a left eye image and a right eye image, and the left eye lens and the right eye lens respectively Projecting the left eye image and the right eye image to a left eye and a right eye of a user. The wide-view head-mounted display of the first aspect of the invention, wherein the first side display panel and the second side display panel are respectively configured to play a left-eye residual light image and a right-eye residual light image, The left-eye residual light image includes an extended viewing angle to the left of the left-eye image, and the right-eye residual light image includes an extended viewing angle to the right of the left-eye image. The wide-view head-mounted display of the first aspect of the invention, wherein the first side display panel and the corresponding first side lens, and the second side display panel and the corresponding second side lens are Adjust in the horizontal direction. The wide viewing angle head mounted display of claim 1, wherein the left eye lens, the right eye lens, the first side lens, and the second side lens It is integrated into one lens module. The wide viewing angle head mounted display of claim 5, wherein the front display panel is a flexible panel and the surface curvature corresponds to the lens module.