TWI734640B - Integrated stereoscopic image display device - Google Patents

Abstract

An integrated stereoscopic image display device includes a monitor, a lens array layer, and a gradient transmittance mask. The gradient transmittance mask includes a plurality of mask units, and the mask units have gradient transmittance. An un-rebuilt image shown by a display surface of the monitor can be reorganized and reconstructed as an integrated image to form a stereoscopic image through the lens array layer, and the gradient transmittance mask enables a brightness distribution after imaging to be uniform and without grille-feeling so that watching quality can be improved.

Description

Integrated stereo image display device

The present invention relates to an integrated three-dimensional image display device, in particular to an integrated three-dimensional image display device that is used for display purposes. The main field is 3D stereo display, adopts 3D naked vision technology, and is relatively simple and convenient to use.

Existing stereoscopic image display devices are generally made by the mainstream technology of fusing images of both eyes. Generally, auto-stereoscopic image display devices allow viewers to watch from the angle directly facing the display device, or the depth of the image cannot be too far away from the display plane. However, in situations where some situational conditions are considered, such as aerial terrain models, architectural models, medical 3D training, etc., when the display device is placed horizontally, the natural viewing angle of the viewer is oblique viewing the display device. At this time, the mainstream stereoscopic image display technology cannot provide a natural viewing angle for the viewer, which causes inconvenience. Furthermore, in general stereoscopic image display devices, the 3D perception viewed from the front is a visual stimulus in only one direction for the viewer, which is like the image protruding or sinking, and it cannot achieve the feeling of truly separating the image from the plane. Realize the feeling of floating in the air. In addition, the existing integrated three-dimensional image display device may cause uneven brightness distribution after imaging, resulting in a grid feeling, and reducing viewing quality.

The technical problem to be solved by the present invention is to provide an integrated three-dimensional image display device in view of the shortcomings of the prior art, which can provide a floating display effect, allow viewers to view the three-dimensional image at a frontal and oblique angle, and the brightness after imaging It is evenly distributed and does not cause a grille to enhance the viewing quality.

In order to solve the above-mentioned technical problems, the present invention provides an integrated stereoscopic image display device, including: a display having a display surface and an image calculation unit; a lens array layer disposed adjacent to the display On the display surface of, the lens array layer includes a plurality of lenses; and a gradient transmittance mask, the gradient transmittance mask includes a plurality of mask units, the mask units have a gradient transmittance, the The unreconstructed image displayed on the display surface can be recombined by the lens array layer and recombined into an integrated image to form a three-dimensional image, and the gradual transmittance mask can make the brightness distribution uniform after imaging.

In order to solve the above technical problems, the present invention also provides an integrated stereoscopic image display device, including: a display, the display includes a liquid crystal panel, a backlight module and an image calculation unit, the liquid crystal panel has a display surface, The liquid crystal panel can turn on the pixels that need to be used and turn off the pixels that are not needed. The backlight module includes a plurality of light sources; and a gradient transmittance mask that includes a plurality of mask units, The mask units have gradual transmittance, and the unreconstructed image displayed on the display surface can be recombined by the light sources and the liquid crystal panel and recombined into an integrated image to form a three-dimensional image. The transmittance mask can make the brightness distribution even after imaging.

The beneficial effect of the present invention is that the present invention can provide the effect of floating display, allowing viewers to view the stereo image at a frontal and oblique angle, and the present invention is provided with a gradual transmittance mask, which The mask includes a plurality of mask units, and the mask units have gradual transmittance. The effect of the different transmittances of the mask units can be used to make the brightness distribution uniform after imaging without causing a grid feeling.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings about the present invention. However, the provided drawings are only for reference and description, and are not used to limit the present invention.

The following are specific specific examples to illustrate related implementations disclosed in the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual dimensions, and are stated in advance. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention. In addition, the term "or" used in this document may include any one or a combination of more of the associated listed items depending on the actual situation.

[First Embodiment]

The present invention provides an integrated three-dimensional image display device, which can be applied to various industries such as optoelectronics, medical treatment, military, display, display, education and entertainment, and consumer electronics. The integrated three-dimensional image display device can be applied to active or passive Waiting for the display is not limited.

Please refer to Figure 1 and Figure 2. The integrated stereoscopic image display device includes a display 1, a lens array layer 2 and a gradient transmittance mask 3, which can change the viewing angle and position of the viewer through the change of the displayed image. The resulting 3D image screen allows viewers to watch 3D images from other perspectives.

The display 1 can be a general flat-panel display, and the display 1 has a display surface 11 that can be used to display images. The lens array layer 2 is arranged adjacent to the display surface 11 of the display 1, that is, the lens array layer 2 can be arranged above the display 1. The lens array layer 2 can contact the display surface 11 of the display 1, and the lens array layer 2 can be spaced apart from the display surface 11 of the display 1, or an intermediate layer can be provided between the display surface 11 of the display 1 and the lens array layer 2.

The display 1 can be arranged at the bottom layer, and is responsible for displaying a plane image that has not been reproduced by light. The plane image can be redistributed and combined through the lens array of the lens array layer 2 to display a reorganized three-dimensional image. The display 1 of the first layer only needs to display the target image, so it can be any hardware structure, including mobile phones, tablets or flat screens. The type and structure of the display 1 are not limited. The display 1 can also be a self-luminous monitor.

The lens array layer 2 can be arranged on the uppermost layer. The lens array layer 2 has the function of adjusting the light field. The lens array layer 2 can adjust the light angle of the three-dimensional object, so that the original unreorganized planar images can be redistributed and combined, thereby allowing The viewer sees a three-dimensional image.

The lens array layer 2 is made of a material with good optical properties, and the material of the lens array layer 2 is not limited. The lens array layer 2 may include a base 21 and a plurality of lenses 22. The lenses 22 are arranged on one side of the base 21. That is, the lenses 22 may be arranged on the side of the base 21 away from the display 1. The lens array layer 2 The arrangement and structure are not limited. The lenses 22 have a focusing function. The unreconstructed images displayed on the display surface 11 can be recombined through the lens array layer 2 and recombined into an integrated image to form a three-dimensional image.

The feature of the present invention is that the three-dimensional image is viewed obliquely. The so-called oblique viewing method means that the viewer is not directly facing the display 1, but can also see the three-dimensional image. In the traditional naked-eye three-dimensional display, most of them have the problem of viewing angle, which prevents the viewer from seeing it at an oblique angle. In the present invention, oblique viewing is a major feature. The viewer is in the direction facing the display 1 (zero order viewing zone), and there is a limited viewing angle on the left and right. Once this viewing angle is exceeded, the viewer What you see will not be the three-dimensional information you should see at the corresponding angle. In order to achieve oblique viewing of stereoscopic images, the 0-order (positive) display method is no longer used, but the oblique angle display method is used to converge the light path in the oblique direction, and the viewer can View the three-dimensional image in the direction of. However, the integrated stereoscopic image display device of the present invention can also be applied to viewing stereoscopic images from a forward angle.

The display 1 can have any specifications, as long as the algorithm can be applied, that is, the display 1 has an image calculation unit 12, and the image used on the display 1 needs to be calculated by the image algorithm. This calculation is matched with the structure of the lens array , Predict the various paths that its light travels, and calculate the relative position of the image. Since the image algorithm is an existing technology and is not the focus of the present invention, it will not be described in detail.

The lens array layer 2 of the present invention has a very important relationship with the display effect. As shown in FIG. 3, the arrangement of the lens array can be a rectangular arrangement, so that the lenses 22 of every two adjacent rows can be arranged oppositely. As shown in FIG. 4, the arrangement of the lens array can also be a hexagonal arrangement, so that the lenses 22 of each two adjacent rows can be arranged in a staggered arrangement. In addition, the lenses 22 can also be arranged in other ways, all of which can be displayed. 3D image information.

The microstructure on the lens array layer 2 is a lens with focusing function. The specification of the microlens will determine its lens focusing ability according to the refractive index n of the material. The wavelength range of the usable light is 300nm to 1100nm. The focal length of a single small lens is shown in Figure 5, which conforms to the lens maker's formula: 1/f=(n-1)(1/R1-1/R2). Among them, R1 and R2 are the radii of curvature on both sides of the lens, f is the focal length of the lens, and n is the refractive index of the lens. In addition, the size of the lens diameter from 100um to 5mm is suitable for the pixel size of different display devices.

The gradient transmittance mask 3 is arranged adjacent to the display surface 11 of the display 1. The gradient transmittance mask 3 can be arranged on the side of the lens array layer 2 close to or far from the display 1. The gradient transmittance mask 3 can also be sprayed directly on the top or bottom surface of the lens array layer 2. In this embodiment, the gradient transmittance mask 3 is arranged on the side of the lens array layer 2 close to the display 1, that is, the gradient transmittance The mask 3 is arranged under the lens array layer 2. The gradient transmittance mask 3 includes a plurality of mask units 31, the mask units 31 can be disposed on a substrate 32, and the mask units 31 correspond to the lenses 22 respectively. In this embodiment The mask unit 31 has a circular shape corresponding to the lens 22, but the shape of the mask unit 31 is not limited, and may also have other shapes, such as a rectangle or a hexagon. The mask unit 31 has a gradual penetration rate, and the penetration rate of the mask unit 31 increases from the center to the edge, that is, the center penetration rate of the mask unit 31 is the lowest, and the edge penetration rate of the mask unit 31 is the highest. In this embodiment, the mask unit 31 may include a plurality of dots 311, the dots 311 may be made of translucent or opaque materials, and the density of the dots 311 decreases from the center of the mask unit 31 to the edge. So that the penetration rate of the mask unit 31 increases from the center to the edge.

The method of the gradient transmittance mask 3 can be achieved by printing inkjet or mask exposure, etc., and different grayscale patterns can achieve different transmittance effects. In addition, it can also have different penetration rates by spraying different materials. The mask units 31 may respectively correspond to the lenses 22, or the mask units 31 may not correspond to the lenses 22. For example, one lens 22 may also correspond to a plurality of mask units 31. In addition, the mask units 31 do not necessarily correspond to all the lenses 22, that is, only some of the lenses 22 are correspondingly provided with the mask units 31 to reduce the light intensity, and the other lenses 22 directly penetrate. In addition, the mask units 31 are not necessarily completely gradual, and may have multiple (for example, four, five, or six, etc.) different transmittances. The mask units 31 may also have a multi-layer structure, for example, each layer is a concentric circle of different sizes, and they are stacked together to form a gradient transmittance mask 3.

In this embodiment, the lens 22 is taken as an example. When the pixels under a lens 22 are all lit, after imaging, the center image of the lens 22 will be brighter than the edge image of the lens because the edge of the lens 22 emits less light after imaging. Grille. The mask units 31 correspond to the lenses 22, and the transmittance of the mask units 31 can increase from the center to the edge. Therefore, the brightness of the central image of the lens 22 can be reduced to reduce the light intensity to use The effect of the different penetration rates of the mask unit 31 makes the brightness distribution uniform after imaging, and does not cause a grid feeling.

Under certain structures, it may also cause the graphics to be dark in the middle and bright on the sides. Therefore, in another embodiment of the present invention (as shown in FIG. 12), the penetration rate of the mask unit 31 may decrease from the center to the edge. That is, the center penetration rate of the mask unit 31 is the highest, and the edge penetration rate of the mask unit 31 is the lowest.

The present invention proposes an integrated type that can be applied to frontal and oblique viewing angles, and is matched with hardware settings to control the light traveling direction of each position pixel in the device through the optical element. The hardware system of the present invention is a simple optical element, including a display 1, a lens array layer 2 and a gradient transmittance mask 3, which can be packaged into a package. By designing the pixel size, system gap, lens size and focal length, The integrated image principle, combined with the screen output image signal with a special algorithm, can make it display the real image in a three-dimensional space.

In another embodiment of the present invention, a software method can also be used to make the pixels of the display 1 have different brightness, which can also be equivalent to the effect of the gradient transmittance mask 3.

[Second Embodiment]

Please refer to FIG. 6, the structure of this embodiment is roughly the same as that of the above-mentioned first embodiment. The only difference is that in this embodiment, the gradient transmittance mask 3 is arranged on the side of the lens array layer 2 away from the display 1. , That is, the gradient transmittance mask 3 is arranged above the lens array layer 2. The mask unit 31 of the gradual transmission rate mask 3 has a gradual transmission rate, and the effect of different transmission rates of the mask unit 31 can be used to make the brightness distribution uniform after imaging without causing a grid feeling.

[Third Embodiment]

Referring to FIG. 7, the structure of this embodiment is roughly the same as that of the above-mentioned first embodiment. The only difference is that in this embodiment, the gradual transmittance mask 3 in the above-mentioned embodiment is omitted, and directly in these embodiments. The light-absorbing material 23 is added to the material of the lens 22, causing the transmittance of the lens 22 to be inversely proportional to the thickness. Therefore, the transmittance of the center of the lens 22 is smaller than the transmittance of the edge of the lens 22, that is, the center of the lens 22 is thicker. The transmittance is low, the edge of the lens 22 is thin, and the transmittance is high. The lens 22 can provide the function of gradual transmittance through the light-absorbing material 23, so that the brightness distribution after imaging is uniform without causing a grid feeling .

[Fourth Embodiment]

Please refer to FIG. 8. In this embodiment, a pinhole array layer 4 is mainly used to replace the lens array layer 2 in the first embodiment. The integrated stereoscopic image display device includes a display 1, a pinhole array layer 4, and A gradient transmittance mask 3, the display 1 may include a liquid crystal panel 13 and a backlight module 14, the display surface 11 is located on the liquid crystal panel 13, the backlight module 14 is close to the liquid crystal panel 13, the backlight module 14 can project The light source transmits the information to the eyes of the user after passing the light through the liquid crystal panel 13. In this embodiment, the display 1 is a passive light emitting display. In another embodiment, the display 1 may also be an active light emitting display, such as an OLED or LED display. In this embodiment, the gradient transmittance mask 3 is arranged on the side of the pinhole array layer 4 close to the display 1, that is, the gradient transmittance mask 3 is arranged below the pinhole array layer 4. The structure of the transmittance mask 3 is the same as that of the first embodiment, so it will not be described in detail.

The pinhole array layer 4 can be disposed adjacent to the display surface 11 of the display 1, that is, the pinhole array layer 4 can be disposed above the display 1. The pinhole array layer 4 can be in contact with the display surface 11 of the display 1, and the pinhole array layer 4 can also be spaced apart from the display surface 11 of the display 1, or between the display surface 11 of the display 1 and the pinhole array layer 4 middle layer. The pinhole array layer 4 can also be arranged in the display 1 or other suitable positions.

The display 1 can be set on the bottom layer, and it is responsible for displaying a plane image that has not been reproduced by light. This plane image can be redistributed and combined through the pinhole array of the pinhole array layer 4, and then display a reorganized three-dimensional three-dimensional image. The pinhole array layer 4 can be arranged on the uppermost layer. The pinhole array layer 4 has the function of adjusting the light field. The pinhole array layer 4 can adjust the light angle of the three-dimensional object, so that the original unreorganized planar image can be redistributed and combined. , So that the viewer can see the three-dimensional image.

The material of the pinhole array layer 4 is not limited. The pinhole array layer 4 includes a main body 41 and a plurality of pin holes 42. The main body 41 is made of an opaque material so that the main body 41 is An opaque part, the main body 41 is a plate-shaped body. The pinholes 42 are preferably round holes. The pinholes 42 are provided on the main body 41. The pinholes 42 can penetrate the two opposite sides (two sides) of the main body 41, and between every two adjacent pinholes 42 The distance between the pinholes is less than 5mm, the diameter of each pinhole 42 is less than 1mm, and the pinholes 42 have a focusing function. The unreconstructed images displayed on the display surface 11 can be recombined using the pinhole principle through the pinholes 42 and recombined into an integrated image to form a three-dimensional image. The pinhole 42 can be hollow, or a translucent material can be provided in the pinhole 42 so that light can pass through the pinhole 42. The pinhole array layer 4 of the present invention has a very important relationship with the display effect. The arrangement of the pinhole array can be a rectangular arrangement or a hexagonal arrangement, that is, the pinholes 42 of every two adjacent rows can be opposite. Arrangement or staggered arrangement can be used to display 3D image information. The mask unit 31 of the gradual transmission rate mask 3 has a gradual transmission rate, and the effect of different transmission rates of the mask unit 31 can be used to make the brightness distribution uniform after imaging without causing a grid feeling.

[Fifth Embodiment]

Referring to FIG. 9, the structure of this embodiment is roughly the same as that of the above-mentioned fourth embodiment. The only difference is that, in this embodiment, the gradient transmittance mask 3 is disposed on a pinhole array layer 4 away from the display 1. Side, that is, the gradient transmittance mask 3 is arranged above the pinhole array layer 4. The mask unit 31 of the gradual transmission rate mask 3 has a gradual transmission rate, and the effect of different transmission rates of the mask unit 31 can be used to make the brightness distribution uniform after imaging without causing a grid feeling.

[Sixth Embodiment]

Please refer to FIG. 10. In this embodiment, the integrated stereoscopic image display device includes a display 1 a and a gradient transmittance mask 3. The display 1a includes a liquid crystal panel 12a, a backlight module 13a, and an image calculation unit 14a. The liquid crystal panel 12a has a display surface 11a. The backlight module 13a can project a light source to transmit light through the liquid crystal panel 12a. Information is delivered to the user’s eyes. In this embodiment, the liquid crystal panel 12a can use software to turn on the pixels 121a that need to be used and turn off the pixels 122a that are not needed. The backlight module 13a includes a plurality of light sources 131a, and the light sources 131a may be light sources such as LEDs or OLEDs, and the light sources 131a are arranged at intervals. The light sources 131a can project light to transmit information to the eyes of the user after the light passes through the liquid crystal panel 12a. The planar image of the display 1a can pass through the light sources 131a and the liquid crystal panel 12a, and then display a reorganized three-dimensional image.

The gradient transmittance mask 3 can be arranged on the side of the liquid crystal panel 12a close to or far from the backlight module 13a. The gradient transmittance mask 3 can also be sprayed directly on the top or bottom surface of the liquid crystal panel 12a. The transmittance mask 3 can also be sprayed directly on the top or bottom surface of the pixel 121a to be used. In this embodiment, the structure of the gradient transmittance mask 3 is the same as that of the first embodiment, and the gradient transmittance mask 3 is disposed under the liquid crystal panel 12a. The mask unit 31 of the gradual transmission rate mask 3 has a gradual transmission rate, and the effect of different transmission rates of the mask unit 31 can be used to make the brightness distribution uniform after imaging without causing a grid feeling.

[Seventh embodiment]

Referring to FIG. 11, the structure of this embodiment is substantially the same as that of the above-mentioned sixth embodiment. The only difference is that in this embodiment, the gradual transmittance mask 3 is disposed on a portion of the liquid crystal panel 12a away from the backlight module 13a. Side, that is, the gradient transmittance mask 3 is arranged above the liquid crystal panel 12a. The mask unit 31 of the gradual transmission rate mask 3 has a gradual transmission rate, and the effect of different transmission rates of the mask unit 31 can be used to make the brightness distribution uniform after imaging without causing a grid feeling.

[Beneficial effects of the embodiment]

The beneficial effect of the present invention is that the present invention can provide the effect of floating display, allowing viewers to view the stereo image at a frontal and oblique angle, and the present invention is provided with a gradual transmittance mask, which The mask includes a plurality of mask units, and the mask units have gradual transmittance. The effect of the different transmittances of the mask units can be used to make the brightness distribution uniform after imaging without causing a grid feeling.

The content disclosed above is only the preferred and feasible embodiments of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the description and schematic content of the present invention are included in the application of the present invention. Within the scope of the patent.

1: display 11: display surface 12: Image calculation unit 13: LCD panel 14: Backlight module 1a: display 11a: display surface 12a: LCD panel 121a: pixels to be used 122a: Unused pixels 13a: Backlight module 131: a light source 14a: Image calculation unit 2: Lens array layer 21: Base 22: lens 23: Light-absorbing substances 3: Gradient penetration rate mask 31: Mask unit 311: outlets 32: substrate 4: Pinhole array layer 41: body 42: pinhole f: lens focal length

FIG. 1 is a schematic diagram of a first embodiment of an integrated stereoscopic image display device of the present invention.

FIG. 2 is an exploded schematic diagram of the first embodiment of the integrated stereoscopic image display device of the present invention.

Fig. 3 is a schematic diagram of the relative arrangement of the lens array of the present invention.

4 is a schematic diagram of the staggered arrangement of the lens array of the present invention.

Fig. 5 is a schematic diagram of the focusing situation of a single lens of the present invention.

FIG. 6 is a schematic diagram of a second embodiment of the integrated stereoscopic image display device of the present invention.

FIG. 7 is a schematic diagram of a third embodiment of an integrated stereoscopic image display device of the present invention.

FIG. 8 is a schematic diagram of a fourth embodiment of an integrated stereoscopic image display device of the present invention.

FIG. 9 is a schematic diagram of a fifth embodiment of an integrated stereoscopic image display device of the present invention.

FIG. 10 is a schematic diagram of a sixth embodiment of an integrated stereoscopic image display device of the present invention.

FIG. 11 is a schematic diagram of a seventh embodiment of the integrated stereoscopic image display device of the present invention.

FIG. 12 is a schematic diagram of another embodiment of the gradient transmittance mask of the present invention.

1: display 11: display surface 12: Image calculation unit 2: Lens array layer 21: Base 22: lens 3: Gradient penetration rate mask 31: Mask unit 32: substrate

Claims (8)

An integrated three-dimensional image display device, including: A display, the display having a display surface and an image calculation unit; A lens array layer, the lens array layer is disposed adjacent to the display surface of the display, the lens array layer includes a plurality of lenses; and A gradient transmittance mask, the gradient transmittance mask includes a plurality of mask units, the mask units have gradual transmittance, the unreconstructed image displayed on the display surface can pass through the lens array layer Recombination and recombination into an integrated image to form a three-dimensional image, and the gradual transmittance mask can make the brightness distribution uniform after imaging. The integrated stereoscopic image display device according to claim 1, wherein the transmittance of the mask units increases or decreases from the center to the edge. The integrated stereoscopic image display device according to claim 1, wherein the one lens corresponds to the one or more mask units. The integrated stereoscopic image display device according to claim 1, wherein the gradient transmittance mask is arranged on a side of the lens array layer close to or far from the display. An integrated three-dimensional image display device, including: A display, the display includes a liquid crystal panel, a backlight module and an image calculation unit, the liquid crystal panel has a display surface, the liquid crystal panel can turn on the pixels that need to be used and turn off the pixels that are not used, the backlight module The group contains multiple light sources; and A gradient transmittance mask, the gradient transmittance mask includes a plurality of mask units, the mask units have gradual transmittance, the unreconstructed image displayed on the display surface can pass through the light sources and The liquid crystal panel is recombined and recombined into an integrated image to form a three-dimensional image, and the gradual transmittance mask can make the brightness distribution even after imaging. The integrated stereoscopic image display device according to claim 5, wherein the transmittance of the mask units increases or decreases from the center to the edge. The integrated stereoscopic image display device according to claim 5, wherein the one pixel to be used corresponds to the one or more mask units. The integrated stereoscopic image display device according to claim 5, wherein the gradient transmittance mask is arranged on a side of the liquid crystal panel close to or far from the backlight module.

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