TW201624053A - Head-mounted electronic device and display thereof - Google Patents

Abstract

A display of head-mounted electronic device is suitable for displaying image information to a user in a space formed by the head-mounted electronic device and a head of the user when the head-mounted electronic device is mounted on the head of the user. The display includes a display panel and a light adjusting element, wherein the display panel has a display region for showing the image information, and the light adjusting element is disposed on the display region such that a direction of a light emitted from the display panel is changed by the light adjusting element to mitigate the screen-door effect and improve the displaying quality of the display.

Description

Head mounted electronic device and display thereof

The present disclosure relates to a display, and more particularly to a display for use in a head mounted electronic device.

In recent years, the development of display panel technology has gradually matured, and its application has become increasingly widespread. Display screens are used as display interfaces for outputting information, such as televisions, desktop monitors, notebook computers, tablets, mobile phones, and even new wearable electronic devices.

In the case of a head-mounted display, an eye mask or a helmet is generally used to bring the display panel close to the user's eyes and display image information within a very short distance from the eyes. Since the display panel is very close to the eye, the pixel separation on the display panel is more pronounced. In other words, as shown in FIG. 1, when the display panel 100 displays a pattern 102, the screen-door effect formed by the pixel edges 110 on the display screen is more pronounced. In particular, this problem is more serious when there is a black matrix (BM) or a line on the display panel.

The disclosure provides a display of a head mounted electronic device, which can reduce the grid effect of the display screen and improve the display quality.

When the head mounted electronic device is mounted on a head of a user, the display of the present disclosure is adapted to display an image to the user in a space formed by the head mounted electronic device and the head of the user. News. The display includes a display panel and a light adjustment component, wherein the display panel has a display area for displaying the image information. The light adjusting component is disposed in the display area for changing a traveling direction of a light emitted by the display panel to slow the mesh effect.

The present disclosure provides a head mounted electronic device using the foregoing display, which can bring a good visual effect to the user by improving the display quality.

The head mounted electronic device of the present disclosure includes a holder and the aforementioned display. The bracket is adapted to fit over the head of the user to form the space together with the head of the user. The display is disposed on the bracket and is adapted to display image information to the user in a space.

In an embodiment, the light adjusting component comprises a diffusion sheet disposed in the display area.

In one embodiment, the display further includes an adhesive layer between the diffusion sheet and the display area and covering the entire display area to fit the diffusion sheet to the display area.

In an embodiment, the adhesive layer is a semi-cured adhesive.

In an embodiment, the diffusion sheet comprises a transparent substrate and is interspersed with A plurality of diffusion beads in the transparent substrate.

In an embodiment, the light adjusting component comprises a plurality of 稜鏡 structures disposed in the display area.

In an embodiment, the display panel is a liquid crystal display panel or an organic light emitting diode display panel.

Based on the above, the present disclosure provides a light adjustment component on the display area of the display panel, such as a diffusion sheet or a crucible structure, etc., such that the light emitted by the display panel passes through the light adjustment component before reaching the user's eyes. In this way, the light adjusting element is used to change the traveling direction of the light. For example, the light may be refracted, scattered or reflected by the light adjusting element to reach the eye of the user, thereby slowing down the mesh effect caused by the pixel structure, thereby improving The display quality of the display.

The above described features and advantages of the invention will be apparent from the following description.

10‧‧‧User head

12‧‧‧User eyes

100‧‧‧ display panel

102‧‧‧ patterns

110‧‧‧ pixel edge

200‧‧‧ head mounted electronic devices

202‧‧‧ pattern

210‧‧‧ bracket

220‧‧‧ display

300‧‧‧ display panel

400‧‧‧Diffuse film

410‧‧‧Transparent substrate

420‧‧‧Diffusion particles

500‧‧‧Adhesive layer

600‧‧‧Roller

700‧‧‧ display panel

702‧‧‧Black matrix

712, 714, 716‧‧ ‧ pixels

720‧‧‧稜鏡 structure

L‧‧‧Light

D‧‧‧ display area

S‧‧‧ Space

A-A’‧‧‧ hatching

FIG. 1 is a schematic diagram of a conventional display panel displaying image information.

2A illustrates a head mounted electronic device in accordance with an embodiment of the present disclosure.

2B is another view of the head mounted electronic device of FIG. 2A.

2C is a schematic view of the head mounted electronic device of FIG. 2A being assembled to a user's head.

FIG. 3 illustrates a specific structure of the display of FIG. 2B.

FIG. 4 is a schematic diagram showing a comparison between a diffusion sheet and an undisposed diffusion sheet when the display of FIG. 3 displays image information.

5A and 5B respectively illustrate the practice of fully fitting the diffusion sheet to the display panel.

FIG. 6 illustrates a diffuser in accordance with an embodiment of the present disclosure.

FIG. 7A illustrates a display in accordance with another embodiment of the present disclosure.

Figure 7B is a cross-sectional view of the display of Figure 7A taken along line A-A'.

2A illustrates a head mounted electronic device in accordance with an embodiment of the present disclosure. 2B is another view of the head mounted electronic device of FIG. 2A. 2C is a schematic view of the head mounted electronic device of FIG. 2A being assembled to a user's head. As shown in FIGS. 2A-2C, the head mounted electronic device 200 of the present embodiment includes a bracket 210 and a display 220. The bracket 210 is of any possible type for carrying the display 220 and is fixed to the user's head 10. The possible form of the stent 210 is an eye shield, a helmet or any design that can be secured to the user's head 10. Further, when the stent 210 of the present embodiment is attached to the user's head 10, the head mounted electronic device 200 and the user's head 10 together form a space S. External light will not easily pass through the space S and enter the user's eyes, affecting the user to view the image information displayed on the display 220. If the space S can be an enclosed space and external light cannot enter the space S, the display 220 will provide a good visual effect for the user. At this time, the display area D of the display 220 and the user's eyes 12 are simultaneously located in the space S. Users can pass through the eyes 12 The image information displayed on the display area 222 of the display 220 is directly viewed.

FIG. 3 further illustrates the specific structure of the display 220. 2A-2C and FIG. 3, the display 220 of the present embodiment includes a display panel 300 and a light adjusting component (for example, a diffusion sheet 400). The display panel 300 provides a display area D for displaying image information. In addition, the diffusion sheet 400 as the light adjustment element is disposed on the display area D. Therefore, the light emitted by the display panel 300 when the image information is displayed passes through the diffusion sheet 400 and is refracted or scattered by the diffusion sheet 400 to reach the eyes of the user. 12. In other words, the user's eyes 12 do not (or are not easily) see areas of the pixels (such as black matrices or lines) that are not illuminated. In this way, by the effect of light refraction or scattering, the mesh effect caused by the pixel edges when the display panel 300 displays image information can be slowed down.

FIG. 4 is a schematic diagram showing a comparison between the diffusion sheet 400 and the undisposed diffusion sheet 400 when the display 220 of the embodiment 220 displays the pattern 202. As shown in FIG. 4, the left half of the display 220 is a display effect in which the diffusion sheet 400 is disposed, and the right half of the display 220 is a display effect in which the diffusion sheet 400 is not disposed, and the left side of the display 220 in which the diffusion sheet 400 is disposed is generated. The mesh effect will be slowed down by the diffuser 400 such that the pattern 202 displayed by the display 220 has no mesh image.

As shown in FIG. 3, the display panel 300 of the present embodiment is, for example, a liquid crystal display panel, an organic light emitting diode display panel, or the like. In addition, the diffusion sheet 400 is attached to the display panel 300 by the adhesive layer 500, for example, wherein the adhesive layer 500 covers all the display areas D, so that the diffusion sheet 400 is completely attached to the display area D. The adhesive layer 500 may be a semi-cured adhesive such as an optically clear adhesive (OCA), or a water-based adhesive. (liquid glue) and other transparent colloids.

5A and 5B illustrate two ways of fully adhering the diffusion sheet 400 to the display area D of the display panel 300 by the adhesive layer 500, respectively. As shown in FIG. 5A, the adhesive layer 500 may be formed on the display panel 300, and then the diffusion sheet 400 is placed on the adhesive layer 500, and the diffusion sheet 400 and the display panel 300 are pressed by the roller 600. Alternatively, as shown in FIG. 5B, the display panel 300 and the diffusion sheet 400 with the adhesive layer 500 are collectively placed in a vacuum environment so that the display panel 300 and the diffusion sheet 400 are bonded to each other by the adhesive layer 500.

It should be noted that, as shown in FIG. 3, the use of the semi-cured adhesive layer 500 helps to maintain the gap between the diffusion sheet 400 and the display area D of the display panel 300 such that the diffusion sheet 400 and the display panel 300 are opposed to each other. The position can be precisely controlled for better light refraction or scattering effects. In addition, since the adhesive layer 500 fills the gap between the diffusion sheet 400 and the display region D of the display panel 300, it is possible to reduce the loss due to refraction or reflection when the light is transmitted between the different interfaces. More specifically, in contrast to the design of the air gap between the diffusion sheet 400 and the display panel 300, the present embodiment selects the adhesive layer 500 having a refractive index between the air and the display panel 300 (or the diffusion sheet 400), thereby facilitating Reduces the refraction and reflection of light between the interfaces, reducing the loss of light. In general, compared with the design of the air gap between the diffusion sheet 400 and the display panel 300, when the optical adhesive is used as the adhesive layer 500 in this embodiment, the overall display brightness of the display 220 can be increased by 8% or more.

Of course, in other embodiments, if the diffusion sheet 400 and the display panel 300 are not attached, the effect of slowing the mesh effect can be achieved.

In addition, FIG. 6 illustrates the diffusion sheet 400 of the present embodiment, which includes a transparent substrate 410 and a plurality of diffusion particles 420 dispersed in the transparent substrate 410. The refractive index of the diffusion particles 420 is different from the refractive index of the transparent substrate 410.

Of course, the disclosure does not limit the possible types of light adjustment elements. Optical components (such as 稜鏡, lens, mirror, etc.) that change the direction of light travel, such as 折射, lens, mirror, etc., can be used as light-adjusting components within a reasonable range to provide the same or similar Effect. For example, other embodiments may also choose to fabricate a microstructure or a germanium structure or the like on a transparent substrate instead of the diffusion sheet 400.

FIG. 7A illustrates a display in accordance with another embodiment of the present disclosure. Figure 7B is a cross-sectional view of the display of Figure 7A taken along line A-A'. As shown in FIGS. 7A and 7B, the present disclosure can also replace the diffusion sheet 400 of the foregoing embodiment with a crucible structure. More specifically, the display panel 700 of the present embodiment has a plurality of pixels 712, 714, 716, etc. of different colors defined by the black matrix 702. In this embodiment, a plurality of 稜鏡 structures 720 are selected on the surface of the display panel 700, and the positions of the 稜鏡 structures 720 correspond to the pixels 712, 714, and 716, respectively, so that the light L emitted by the pixels 712, 714, and 716 can be worn. After the corresponding 稜鏡 structure 720, the user's eye 12 is reached (as shown in Figure 2C). In other words, by the effect of light refraction, the user's eye 12 does not (or does not easily) see non-illuminated areas such as pixel edges (such as black matrices or lines). In this way, the grid effect caused by the pixel edges when the display panel 700 displays the image information can be slowed down.

In summary, the head mounted electronic device of the present invention causes the light emitted by the display panel to reach the eyes of the user by providing a light adjusting component such as a diffusion sheet or a 稜鏡 structure on the display area of the display panel. Light adjustment before Component to change the direction of travel of the light. When the head mounted electronic device is mounted on the user's head, the display displays image information to the user in a space formed by the head mounted electronic device and the user's head. In the absence of external light entering and interfering, the image information displayed on the display panel is transmitted to the user's eyes through the light adjustment component. Therefore, the optical effects such as refraction, scattering, and reflection provided by the light adjusting component can alleviate the mesh effect caused by the edge of the pixel, thereby improving the quality of the image information viewed by the user.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

10‧‧‧User head

12‧‧‧User eyes

200‧‧‧ head mounted electronic devices

210‧‧‧ bracket

220‧‧‧ display

D‧‧‧ display area

S‧‧‧ Space

Claims (14)

A display of a head mounted electronic device, adapted to be a space formed by the head mounted electronic device and the user's head when the head mounted electronic device is worn on a head of a user Displaying an image information for the user, the display includes: a display panel having a display area for displaying the image information; and a light adjustment component disposed in the display area, wherein the light adjustment component changes the display The direction of travel of a light emitted by the panel to slow down the mesh effect. The display of claim 1, wherein the light adjustment component comprises a diffusion sheet disposed in the display area. The display of claim 2, further comprising an adhesive layer between the diffusion sheet and the display area and covering all of the display area to adhere the diffusion sheet to the display area. The display of claim 3, wherein the adhesive layer is a semi-cured adhesive. The display of claim 2, wherein the diffusion sheet comprises a transparent substrate and a plurality of diffusion particles dispersed in the transparent substrate. The display of claim 1, wherein the light adjustment component comprises a plurality of 稜鏡 structures disposed in the display area. The display device of claim 1, wherein the display panel is a liquid crystal display panel or an organic light emitting diode display panel. A head mounted electronic device comprising: a bracket adapted to be mounted on a head of a user to form a space with the head of the user; a display disposed on the bracket for displaying an image to the user in the space The display includes: a display panel having a display area for displaying the image information; and a light adjusting component disposed in the display area, wherein the light adjusting component changes a traveling direction of a light emitted by the display panel To slow down the grid effect. The head mounted electronic device of claim 8, wherein the light adjusting component comprises a diffusion sheet disposed in the display area. The head mounted electronic device of claim 9, wherein the display further comprises an adhesive layer between the diffusion sheet and the display area, and covers all of the display area to paste the diffusion sheet Combined with the display area. The head mounted electronic device of claim 10, wherein the adhesive layer is a semi-cured adhesive. The head mounted electronic device of claim 9, wherein the diffusion sheet comprises a transparent substrate and a plurality of diffusion particles dispersed in the transparent substrate. The head mounted electronic device of claim 9, wherein the light adjusting component comprises a plurality of 稜鏡 structures disposed in the display area. The head mounted electronic device of claim 8, wherein the display panel is a liquid crystal display panel or an organic light emitting diode display panel.