CN111487787A - Stereoscopic image display equipment capable of improving image quality - Google Patents
Stereoscopic image display equipment capable of improving image quality Download PDFInfo
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- CN111487787A CN111487787A CN201910080598.2A CN201910080598A CN111487787A CN 111487787 A CN111487787 A CN 111487787A CN 201910080598 A CN201910080598 A CN 201910080598A CN 111487787 A CN111487787 A CN 111487787A
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Abstract
A stereoscopic image display device capable of improving image quality comprises a display, a lens array layer and a shielding unit. The lens array layer is arranged at a position close to the display surface of the display, and the lens array layer comprises a plurality of lenses. The shielding unit is arranged between the display and the lens array layer, or arranged on the display, or arranged on the lens array layer. The shielding unit comprises a plurality of light-transmitting areas and at least one shielding area, the shielding areas are positioned at the periphery of the light-transmitting areas, the light-transmitting areas respectively correspond to the lenses, and the shielding areas of the shielding unit are used for shielding the invalid areas or the edges of the lenses. The image displayed on the display surface of the display and not reconstructed can be recombined through the lens array layer to be recombined into an integrated image so as to form a three-dimensional image. Therefore, the image quality can be improved.
Description
Technical Field
The present invention relates to a stereoscopic image display device, and more particularly, to a stereoscopic image display device capable of improving image quality.
Background
The existing stereoscopic image display device is generally manufactured by a technology of merging two eyes into an image. In general, naked-eye stereoscopic image display devices allow a viewer to view at an angle directly facing the display device, or the depth of an image cannot be far from the display plane too much. However, in some situations, such as an aviation terrain model, a building model, a medical 3D training, etc., when the display device is horizontally arranged, the viewer can view the display device obliquely from a natural viewing angle. In this case, the conventional mainstream stereoscopic image display technology cannot provide a natural viewing angle for the viewer, which is inconvenient. 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, such as a projection or a depression of the image, and the feeling of actually separating the image from the plane cannot be achieved, thereby realizing the feeling of floating in the air.
Taiwan patent publication No. I614533 discloses a stereoscopic display device, which includes a flat panel display device, a lens array layer and a microstructure layer, wherein the flat panel display device has a display surface, the lens array layer is disposed on the display surface of the flat panel display device, the lens array layer includes a base and a plurality of lenses having a focusing function, the lens array layer is used for regulating and controlling a light field, the microstructure layer is disposed on the lens array layer, the microstructure layer includes a substrate and a plurality of microstructures, and the microstructure layer is used for modulating a light angle direction. Therefore, the stereoscopic image display device is used for displaying a stereoscopic image floating in the air, and can be viewed at an oblique viewing angle. However, in the conventional stereoscopic display device, the lens dead zone or the lens edge may cause problems such as light leakage or aberration, and further cause the quality of the light field image to be degraded.
Disclosure of Invention
The present invention is directed to a stereoscopic image display device capable of improving image quality, which can shield or turn off pixels causing quality degradation, so as to improve image quality.
In order to solve the above technical problem, the present invention provides a stereoscopic image display device capable of improving image quality, including: a display, which is provided with a display surface and an image calculation unit; a lens array layer disposed adjacent to the display surface of the display, the lens array layer comprising a plurality of lenses; and a shielding unit arranged between the display and the lens array layer, wherein the shielding unit comprises a plurality of light-transmitting areas and at least one shielding area, the shielding area is positioned at the periphery of the light-transmitting areas, the light-transmitting areas respectively correspond to the lenses, and the image which is not reconstructed and is displayed on the display surface can be recombined through the lens array layer to be recombined into an integrated image so as to form a three-dimensional image.
Preferably, the shielding unit is disposed on an intermediate medium layer disposed between the display and the lens array layer, so that the shielding unit is disposed between the display and the lens array layer.
In order to solve the above technical problem, the present invention further provides a stereoscopic image display device capable of improving image quality, including: a display, which is provided with a display surface and an image calculation unit; a lens array layer disposed adjacent to the display surface of the display, the lens array layer comprising a plurality of lenses; and a shielding unit arranged on the display, wherein the shielding unit comprises a plurality of light-transmitting areas and at least one shielding area, the shielding area is positioned at the periphery of the light-transmitting areas, the light-transmitting areas respectively correspond to the lenses, and the image which is not reconstructed and is displayed on the display surface can be recombined through the lens array layers to be recombined into an integrated image so as to form a three-dimensional image.
Preferably, the shielding unit is disposed on a fixed transparent cover plate, and the fixed transparent cover plate covers the display surface of the display, so that the shielding unit is disposed on the display surface of the display.
Preferably, the shielding unit is formed in the display, and when the display surface of the display displays an image, the pixels corresponding to the shielding area portion in the display surface of the display can be turned off, so that the shielding unit is displayed in a software manner.
In order to solve the above technical problem, the present invention further provides a stereoscopic image display device capable of improving image quality, including: a display, which is provided with a display surface and an image calculation unit; a lens array layer disposed adjacent to the display surface of the display, the lens array layer comprising a plurality of lenses; and a shielding unit arranged on the lens array layer, wherein the shielding unit comprises a plurality of light-transmitting areas and at least one shielding area, the shielding area is positioned at the periphery of the light-transmitting areas, the light-transmitting areas respectively correspond to the lenses, and the image which is not reconstructed and is displayed on the display surface can be recombined through the lens array layer to be recombined into an integrated image so as to form a three-dimensional image.
Preferably, the shielding unit is disposed on a side of the lens array layer away from or close to the display.
Preferably, the shielding unit is disposed on a movable transparent cover plate, and the movable transparent cover plate covers the lens array layer, so that the shielding unit is disposed on the lens array layer.
The invention has the beneficial effects that:
the invention relates to a stereoscopic image display device which comprises a display, a lens array layer and a shielding unit, wherein the shielding unit comprises a plurality of light transmitting areas and at least one shielding area, the light transmitting areas respectively correspond to the lenses, the shielding area is positioned at the periphery of the light transmitting areas, and the shielding area can play a role in shielding light. The shielding area of the shielding unit can be used for shielding the invalid areas or the edges of the lenses so as to avoid the problems of light leakage or aberration and the like and improve the image quality.
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, which is to be read in connection with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to be limiting.
Drawings
Fig. 1 is a schematic plan view of a stereoscopic display apparatus according to a first embodiment of the invention.
FIG. 2 is a schematic diagram of the relative arrangement of lens arrays according to the present invention.
FIG. 3 is a schematic diagram of the lens array of the present invention in a staggered arrangement.
FIG. 4 is a diagram illustrating a focusing condition of a single lens according to the present invention.
FIG. 5 is a schematic diagram of the shielding units when the lens arrays are arranged oppositely.
FIG. 6 is a schematic diagram of shielding units in a staggered arrangement of lens arrays according to the present invention.
Fig. 7 is a schematic plan view of a stereoscopic display apparatus according to a second embodiment of the invention.
Fig. 8 is a schematic plan view of a stereoscopic display apparatus according to a third embodiment of the invention.
Fig. 9 is a schematic plan view of a stereoscopic display apparatus according to a fourth embodiment of the invention.
Fig. 10 is a schematic plan view of a stereoscopic display apparatus according to a fifth embodiment of the invention.
Fig. 11 is a schematic plan view of a stereoscopic display apparatus according to a sixth embodiment of the invention.
Detailed Description
[ first embodiment ]
The present invention provides a stereoscopic image display device capable of improving image quality, which can be applied to various industries such as photoelectricity, medical treatment, military affairs, exhibition, display, education and entertainment, consumer electronics, etc., and the stereoscopic image display device can be applied to active or passive displays, etc., without limitation.
As shown in fig. 1, the stereoscopic image display apparatus includes a display 1, a lens array layer 2 and a shielding unit 3, which can change the stereoscopic image frame viewed from the angle position of the viewer by changing the display image, so that the viewer can view the stereoscopic image at other angle positions.
The display 1 may be a general flat panel display, and the display 1 has a display surface 11 for displaying images. The lens array layer 2 is disposed adjacent to the display surface 11 of the display 1, i.e. the lens array layer 2 may be disposed above the display 1. The lens array layer 2 may contact the display surface 11 of the display 1, and the lens array layer 2 may be disposed at a distance from the display surface 11 of the display 1, or an intermediate layer may be disposed between the display surface 11 of the display 1 and the lens array layer 2.
The display 1 may be disposed at the lowermost layer and is responsible for displaying a planar image that has not been subjected to light ray reproduction, and the planar image may be redistributed and combined by the lens arrays of the lens array layer 2 to display a recombined three-dimensional stereoscopic image. The display 1 of the first layer only needs to display the target image, and therefore may be any hardware structure, including a mobile phone, a flat panel or a flat screen, or an image such as printing, imprinting, and the like, and may also be a projection display type, and the form and structure of the display 1 are not limited, and the display 1 may also be a self-luminous display, in this embodiment, the display 1 is a general flat display.
The lens array layer 2 can be arranged on the uppermost layer, the lens array layer 2 has the technical effect of regulating and controlling the light field, and the lens array layer 2 can regulate and control the light angle of the three-dimensional object, so that the originally non-recombined planar image is redistributed and combined, and a viewer can see the three-dimensional image. The curvature of the single lens is determined by the material nature of the lens, and in combination with the display 1, determines the three-dimensional image content such as the height, viewing angle range and definition of the stereoscopic image.
In the present embodiment, the lens array layer 2 is made of a material with good optical properties, such as a transparent material, for example, polymethyl methacrylate (PPMA), Polycarbonate (PC), Polyethylene (PE), or Glass (Glass), 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 may be circular, the lenses 22 are disposed on one surface of the base 21, that is, the lenses 22 may be disposed on a surface of the base 21 away from the display 1, the arrangement and structure of the lens array layer 2 are not limited, the lenses 22 have a focusing function, and the image displayed on the display surface 11 and not reconstructed can be recombined by the lens array layer 2 to be recombined into an integrated image to form a stereoscopic image.
The present invention can be used to view a three-dimensional stereoscopic image in an oblique manner, in which a viewer can view the stereoscopic image without facing the display 1. In the conventional naked-eye three-dimensional display, most of the problems are that the viewing angle is not good, and the viewer cannot see the three-dimensional display at an oblique angle. In the present invention, the oblique viewing is a big feature, and the viewer has a visual angle limit on the left and right sides in the direction (zero-order viewing zone) opposite to the display 1, and once the visual angle is exceeded, the viewer sees no stereoscopic information corresponding to the viewing angle. In order to achieve the purpose of viewing the stereoscopic image in an oblique direction, the optical path is converged in the oblique direction by adopting the oblique angle display mode instead of the 0-order (forward) display mode, so that the viewer can view the stereoscopic image in the oblique direction. The stereoscopic image display device of the present invention can be applied to viewing stereoscopic images at a forward angle.
The display 1 of the present invention can be any specification, as long as the algorithm is applicable, that is, the display 1 can have an image calculation unit 12, the image used for the display 1 needs to be calculated by the image algorithm, and the calculation is matched with the structure of the lens array, so that various paths of the light traveling of the display 1 can be predicted, and the relative position of the image can be calculated. Since the image algorithm is the prior art 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 to the display effect, as shown in fig. 2 and 3, the arrangement of the lens array may be a rectangular arrangement or a hexagonal arrangement, i.e. each two adjacent rows of lenses 22 may be arranged oppositely (as shown in fig. 2) or alternatively (as shown in fig. 3), and both may be used to display 3D image information. The micro-structure on the lens array layer 2 is a lens with focusing function, the specification of the micro-lens determines the focusing capability of the lens according to the refractive index n of the material, and the wavelength range of the light can be 300nm to 1100 nm. The single lenslet focal length case is shown in FIG. 4, and follows the lensmaking equation: 1/f ═ (n-1) (1/R1+ 1/R2).
Where R1 and R2 are the radii of curvature on either side of the lens, respectively, f is the focal length of the lens and n is the refractive index of the lens. In addition, the lens diameter size is from 100um to 5mm, which is suitable for the pixel size of different display devices.
The shielding unit 3 may be disposed between the display 1 and the lens array layer 2, and the shielding unit 3 may also be disposed (or formed) on the display 1 or the lens array layer 2, or in another medium layer. The shading unit 3 can shade or turn off the pixels which cause the quality degradation by means of hardware or software, so as to improve the image quality.
In the present embodiment, the shielding unit 3 is a solid structure, the shielding unit 3 is disposed between the display 1 and the lens array layer 2, the shielding unit 3 includes a plurality of transparent regions 31 and at least one shielding region 32 (as shown in fig. 5 and 6), in the present embodiment, the transparent regions 31 are made of a transparent material and have light transmittance, the transparent regions 31 respectively correspond to the lenses 22, the transparent regions 31 and the lenses 22 may be circular correspondingly, and the transparent regions 31 correspond to the effective regions of the lenses 22. The shielding region 32 has no light transmittance, the shielding region 32 is located at the periphery of the light transmitting regions 31, and the shielding region 32 can shield light. In the present embodiment, the transparent regions 31 may be formed on a transparent plate, and the shielding region 32 is formed by ink-jet or the like, so that the shielding region 32 is located at the periphery of the transparent regions 31. The shielding region 32 of the shielding unit 3 can be used to shield the ineffective regions or edges of the lenses 22 to avoid light leakage or aberration.
Therefore, the present invention provides a stereoscopic image display apparatus suitable for forward and oblique viewing angles, which, in conjunction with hardware configuration, can control the light traveling direction of each position pixel in the device through the optical assembly. The hardware system of the invention is a simple optical component, which comprises a display 1, a lens array layer 2 and a shielding unit 3, and can be packaged into a suite, and the real image can be displayed in a three-dimensional space by using an integrated image principle and a screen output picture signal through a special algorithm through the designed pixel size, system clearance, lens size and focal length. The invention can achieve the effect of suspending the image by a very simple device, namely a display 1, a lens array layer 2 and a shielding unit 3 without other optical films on the aspect of hardware characteristics.
[ second embodiment ]
Please refer to fig. 7, which is a second embodiment of the present invention, the present embodiment is substantially the same as the first embodiment, and the difference is that the shielding unit 3 is disposed on the lens array layer 2, that is, the shielding unit 3 is disposed on a side of the lens array layer 2 away from the display 1. In the present embodiment, the shielding unit 3 is a solid structure, the shielding unit 3 includes a plurality of light-transmitting regions 31 and at least one shielding region 32 (as shown in fig. 5 and fig. 6), the shielding region 32 is located at the periphery of the light-transmitting regions 31, and the shielding region 32 can have the effect of shielding light. The shielding region 32 of the shielding unit 3 can be used to shield the ineffective regions or edges of the lenses 22 to avoid light leakage or aberration. The shielding unit 3 is disposed on the lens array layer 2, the shielding unit 3 can be disposed above the lens array layer 2, and no other optical device layer or any other optical device layer can be disposed between the shielding unit 3 and the lens array layer 2.
[ third embodiment ]
Please refer to fig. 8, which is a third embodiment of the present invention, the present embodiment is substantially the same as the first embodiment, and the difference is that the shielding unit 3 is disposed on the side of the lens array layer 2 close to the display 1, the shielding unit 3 can be disposed on the base portion 21 of the lens array layer 2, that is, the shielding unit 3 can be disposed on the side of the base portion 21 of the lens array layer 2 close to the display 1. The transparent regions 31 and the shielding regions 32 can be formed on the base portion 21 of the lens array layer 2 by ink-jet printing or the like (as shown in fig. 5 and 6). The shielding region 32 of the shielding unit 3 can be used to shield the ineffective regions or edges of the lenses 22 to avoid light leakage or aberration.
[ fourth embodiment ]
Please refer to fig. 9, which is a fourth embodiment of the present invention, the present embodiment is substantially the same as the first embodiment, and the difference is that the shielding unit 3 can be disposed on a movable transparent cover plate 4, the movable transparent cover plate 4 can be made of transparent material such as glass plate or plastic plate, the movable transparent cover plate 4 covers the lens array layer 2, so that the shielding unit 3 is disposed on the lens array layer 2, that is, the shielding unit 3 is disposed on a side of the lens array layer 2 away from the display 1. The shielding unit 3 includes a plurality of light-transmitting regions 31 and at least one shielding region 32 (as shown in fig. 5 and 6), the shielding region 32 is located at the periphery of the light-transmitting regions 31, and the shielding region 32 can have the effect of shielding light. The shielding region 32 of the shielding unit 3 can be used to shield the ineffective regions or edges of the lenses 22 to avoid light leakage or aberration.
[ fifth embodiment ]
Please refer to fig. 10, which is a fifth embodiment of the present invention, the present embodiment is substantially the same as the first embodiment, and the difference is that the shielding unit 3 can be disposed on a fixed transparent cover plate 5, the fixed transparent cover plate 5 can be made of transparent material such as glass plate or plastic plate, the fixed transparent cover plate 5 covers the display surface 11 of the display 1, and the shielding unit 3 is disposed on the display surface 11 of the display 1. The shielding unit 3 includes a plurality of light-transmitting regions 31 and at least one shielding region 32 (as shown in fig. 5 and 6), the shielding region 32 is located at the periphery of the light-transmitting regions 31, and the shielding region 32 can have the effect of shielding light. The shielding region 32 of the shielding unit 3 can be used to shield the ineffective regions or edges of the lenses 22 to avoid light leakage or aberration.
[ sixth embodiment ]
Please refer to fig. 11, which is a sixth embodiment of the present invention, the embodiment is substantially the same as the first embodiment, and the difference is that the shielding unit 3 can be disposed on an intermediate medium layer 6, the intermediate medium layer 6 is made of a transparent material such as a glass plate or a plastic plate, the intermediate medium layer 6 is disposed between the display 1 and the lens array layer 2, and the shielding unit 3 is disposed between the display 1 and the lens array layer 2. The shielding unit 3 includes a plurality of light-transmitting regions 31 and at least one shielding region 32 (as shown in fig. 5 and 6), the shielding region 32 is located at the periphery of the light-transmitting regions 31, and the shielding region 32 can have the effect of shielding light. The shielding region 32 of the shielding unit 3 can be used to shield the ineffective regions or edges of the lenses 22 to avoid light leakage or aberration.
In another embodiment of the present invention, the shielding unit 3 can also be formed in the display 1 (not shown), the display 1 can be L CD, Micro L ED or O L ED, etc., when the display surface 11 of the display 1 displays images, the pixels corresponding to the shielding region portion in the display surface 11 of the display 1 can be turned off, so that the shielding unit 3 can also be displayed in a software manner, so as to turn off the pixels causing the quality degradation, thereby improving the image quality.
In another embodiment of the present invention, the shielding unit 3 may also be disposed in the display 1 (not shown), for example, the shielding unit 3 may be disposed on a backlight module of the display 1, or disposed between a liquid crystal panel and the backlight module of the display 1, or disposed on upper and lower substrates of the liquid crystal panel of the display 1.
The invention has the characteristics and functions that:
the stereoscopic image display device of the invention comprises a display, a lens array layer and a shielding unit, wherein the shielding unit can be arranged between the display and the lens array layer, and the shielding unit can also be arranged (or formed) on the display or the lens array layer or in other medium layers. The shielding unit comprises a plurality of light transmitting areas and at least one shielding area, the light transmitting areas correspond to the lenses respectively, the shielding area is positioned at the periphery of the light transmitting areas, and the shielding area can play a role in shielding light. The shielding area of the shielding unit can be used for shielding the invalid areas or the edges of the lenses so as to avoid the problems of light leakage or aberration and the like and improve the image quality.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that equivalent variations using the contents of the present specification and the drawings are included in the scope of the present invention.
Claims (8)
1. A stereoscopic image display apparatus capable of improving image quality, comprising:
a display, which is provided with a display surface and an image calculation unit;
a lens array layer disposed adjacent to the display surface of the display, the lens array layer comprising a plurality of lenses; and
the shielding unit is arranged between the display and the lens array layer and comprises a plurality of light-transmitting areas and at least one shielding area, the shielding areas are positioned at the periphery of the light-transmitting areas, the light-transmitting areas respectively correspond to the lenses, and the image which is not reconstructed and is displayed on the display surface can be recombined through the lens array layer to be recombined into an integrated image so as to form a three-dimensional image.
2. The apparatus of claim 1, wherein the shielding unit is disposed on an intermediate medium layer disposed between the display and the lens array layer such that the shielding unit is disposed between the display and the lens array layer.
3. A stereoscopic image display apparatus capable of improving image quality, comprising:
a display, which is provided with a display surface and an image calculation unit;
a lens array layer disposed adjacent to the display surface of the display, the lens array layer comprising a plurality of lenses; and
the shielding unit is arranged on the display and comprises a plurality of light-transmitting areas and at least one shielding area, the shielding areas are positioned at the periphery of the light-transmitting areas, the light-transmitting areas respectively correspond to the lenses, and the images which are not reconstructed and displayed on the display surface can be recombined through the lens array layers to form an integrated image so as to form a three-dimensional image.
4. The apparatus according to claim 3, wherein the shielding unit is disposed on a fixed transparent cover plate covering the display surface of the display device, such that the shielding unit is disposed on the display surface of the display device.
5. The apparatus according to claim 3, wherein the shielding unit is formed in the display, and when the display surface of the display displays images, the shielding unit is configured to close pixels corresponding to the shielding area on the display surface of the display, so that the shielding unit appears in a software manner.
6. A stereoscopic image display apparatus capable of improving image quality, comprising:
a display, which is provided with a display surface and an image calculation unit;
a lens array layer disposed adjacent to the display surface of the display, the lens array layer comprising a plurality of lenses; and
the shielding unit is arranged on the lens array layer and comprises a plurality of light transmitting areas and at least one shielding area, the shielding areas are positioned at the periphery of the light transmitting areas, the light transmitting areas respectively correspond to the lenses, and the images which are not reconstructed and are displayed on the display surface can be recombined through the lens array layer to be recombined into an integrated image so as to form a three-dimensional image.
7. The apparatus of claim 6, wherein the shielding unit is disposed on a side of the lens array layer away from or near the display.
8. The apparatus of claim 6, wherein the shielding unit is disposed on a movable transparent cover plate covering the lens array layer, such that the shielding unit is disposed on the lens array layer.
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| CN201910080598.2A CN111487787A (en) | 2019-01-28 | 2019-01-28 | Stereoscopic image display equipment capable of improving image quality |
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| CN201910080598.2A CN111487787A (en) | 2019-01-28 | 2019-01-28 | Stereoscopic image display equipment capable of improving image quality |
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| CN203350570U (en) * | 2013-07-19 | 2013-12-18 | 深圳市华星光电技术有限公司 | Array substrate and liquid crystal display panel |
| US20170059761A1 (en) * | 2015-09-02 | 2017-03-02 | Samsung Electronics Co., Ltd. | Backlight unit using micro optical switch and 3d image display device |
| TWI641871B (en) * | 2018-01-12 | 2018-11-21 | 群睿股份有限公司 | Stereoscopic image display device |
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| CN1661418A (en) * | 2003-11-12 | 2005-08-31 | 日本先锋公司 | Stereoscopic two-dimensional image display system and image display method |
| CN102147533A (en) * | 2010-02-10 | 2011-08-10 | 介面光电股份有限公司 | Stereoscopic image imaging device |
| CN203350570U (en) * | 2013-07-19 | 2013-12-18 | 深圳市华星光电技术有限公司 | Array substrate and liquid crystal display panel |
| US20170059761A1 (en) * | 2015-09-02 | 2017-03-02 | Samsung Electronics Co., Ltd. | Backlight unit using micro optical switch and 3d image display device |
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