TWI471607B - Hybrid multiplexed 3d display and displaying method of hybrid multiplexed 3d image - Google Patents

Description

Hybrid multiplexed stereo display and display method of hybrid multiplexed stereo image

The present disclosure relates to a stereoscopic display and a display method thereof, and more particularly to a hybrid multiplexed stereoscopic display and a display method thereof.

The display is the most important interface between people and technology. The technology of displaying pictures has evolved toward high resolution, high image quality, and large size. The next revolution in display technology will be the transformation of a flat image display into a display of body images to meet the most important and natural stereoscopic effects in human vision.

The autostereoscopic display will be the main future direction of the stereoscopic image display, and the multi-view system of the naked-eye stereoscopic display is a necessary and necessary trend. However, the main bottleneck of today's stereoscopic image display technology is that the bandwidth is too high, because the display must simultaneously control color, brightness and field of view. Because of this, stereoscopic displays, when combined with existing flat-panel display technologies, often fail to achieve good display performance due to too much spatial resolution or excessive signal frequency.

At present, the naked-eye stereoscopic image display can be divided into Temporal multiplexed and Spatial multiplexed. When a stereoscopic image is to be displayed in a multi-view naked-eye stereoscopic image display using a spatial multiplexed display mode, the spatial resolution of a large number of displays is sacrificed, and the viewer's single view is greatly reduced. The image quality of the domain. If the stereoscopic image is displayed in a multi-view naked-eye stereoscopic image display using a time-multiplexed display mode, although the spatial resolution of the image is not lowered, there are technical problems such as severely reduced brightness and excessive frequency of the image signal. .

Therefore, how to achieve a high spatial resolution, the quality of the stereoscopic image can be accepted by the user, and the naked-eye stereoscopic image display whose frequency of the signal is not too high can enable the stereoscopic display to enter the mass market, which is an issue of the industry. one.

One embodiment of the present disclosure provides a hybrid multiplexed stereoscopic display including a light source, an image splitter, and an image display. The light source sequentially generates a plurality of light groups that are directed to different emission directions. The image splitter is disposed above the image display to transmit each light group to a view group including a plurality of views. The image display is disposed above the light source to provide image data. The light groups sequentially pass through the image display and the image splitter to respectively generate a plurality of view images in the view fields, so that one of the images viewed by the user includes at least two view images, thereby achieving stereoscopic effects. .

One embodiment of the present disclosure provides a method for displaying a hybrid multiplexed stereoscopic image, which includes the following steps. A plurality of light groups emitted toward different emission directions are sequentially generated by the light source. Each group of light is transmitted by the image segmenter to a group of views including a plurality of fields of view. The image data is provided by the image display, and the plurality of light groups sequentially pass through the image display and the image splitter to respectively generate a plurality of view images in the view fields, so that the image viewed by the user includes at least two views. Domain imagery for stereoscopic effects.

In order to make the above-described features of the present invention more comprehensible, the following detailed description of the embodiments will be described in detail below.

1A and 1B are schematic diagrams showing a hybrid multiplexed stereoscopic display in accordance with an embodiment of the present disclosure. 1A and 1B, the hybrid multiplexer 100 includes an image display 104, a light source 102, and an image splitter 106. The image display 104 is used to generate an image. The light source 102 is configured to sequentially generate light of a plurality of colors to pass through the image display 104. The image splitter 106 is disposed above the image display 104 (as shown in FIG. 1A ) or below (as shown in FIG. 1B ) for moving the image data passing through the image display 104 and the image splitter 106 to two or two. More than one of the viewing directions is emitted such that the image viewed by a user has at least two viewing zones to achieve a stereoscopic effect.

2 is an exploded view of the hybrid multiplexed stereoscopic display 100 shown in FIG. 1A in an embodiment of the present disclosure. Referring to FIG. 2, in the hybrid multiplexer 200, the image display 104 can be a transmissive display panel 204, such as a transmissive liquid crystal display panel without a color filter. The image display 104 can also be other brightness control devices, such as an electro-optic governor that can transmit light intensity. The transmissive display panel 204 has a plurality of pixels. These pixels are used to generate the above images. The light of the plurality of colors described above sequentially passes through the pixels, so that the pixels sequentially generate a plurality of sub-images of the plurality of colors. These sub-images correspond to the above images.

The light source 102 can be a sequential backlight module 202 for sequentially generating light of the plurality of colors described above. The light of the plurality of colors is, for example, red, green, and blue light. The light of the plurality of colors can also be a combination of light of other colors. The red, green, and blue lights sequentially pass through the pixels so that the pixels sequentially produce red, green, and blue sub-images. The above image can be obtained by combining a red sub-image, a green sub-image, and a blue sub-image.

The image splitter 106 can be, for example, an optical sheet having a lens array 208. This lens array 208 can be composed of a plurality of cylindrical convex lenses. The cylindrical convex lens is disposed, for example, in a longitudinally extending manner. However, the disclosure is not limited thereto, as long as the lens imaging method is used to image the image at different positions in the space, so that the image array 208 having at least two viewing fields is viewed by the user. Within the scope of the disclosure.

Please refer to FIG. 3A and FIG. 3B . FIG. 3A is a schematic diagram of operation of a conventional spatial multiplexing stereoscopic image display, and FIG. 3B is a schematic diagram of operation of the hybrid multiplexed stereoscopic display in an embodiment of the disclosure. . It is assumed that the displays of Figures 3A and 3B each have four fields of view. However, the display with four fields of view in this example is only an example for illustration, and the disclosure is not limited thereto. The display of the present disclosure may also be a display field of two fields of view, or a display of other number of fields of view.

In FIG. 3A, the display panel 302 has a plurality of pixels, such as pixels P1, P2, P3, and P4. The pixels P1, P2, P3, and P4 form a stereoscopic image pixel to respectively display images of four views of the stereoscopic image. Each pixel has a red sub-pixel SP_R, a green sub-pixel SP_G, and a blue sub-pixel SP_B. After the backlight module (not shown) emits white light, the white light passes through the red, green, and blue filters of the three sub-pixels of the pixel P1 to generate red, green, and blue light, respectively. After the red, green and blue light are respectively refracted via the convex lens 304, light VZ1 corresponding to the first field of view will be generated. Similarly, after the light emitted by the three sub-pixels of pixels P2, P3, and P4 is refracted by the convex lens 304, light VZ2, VZ3 corresponding to the second field of view, the third field of view, and the fourth field of view are respectively generated. And VZ4. In this way, the user will be able to view the color images with four fields of view presented by pixels P1, P2, P3 and P4.

In Fig. 3B, the transmissive display panel 204 has, for example, pixels P1', P2', ..., P12'. It is assumed that the area of one of the pixels P1' to P12' is the same as the area of any of the pixels P1 to P4. The pixels P1' to P4' constitute the first stereoscopic image pixel to display an image of one of the pixels of the four-view stereoscopic image. The pixels P5' to P8' constitute a second stereoscopic image pixel, and the pixels P9' to P12' constitute a third stereoscopic image pixel. In one embodiment, the sequential backlight module (not shown in the figure) sequentially emits red, green, and blue light, so that the pixel P1' corresponds to the red image data, the green image data, and the blue image data. Under the driving of the red pixel voltage, the green pixel voltage, and the blue pixel voltage, red, green, and blue light having corresponding luminances are sequentially generated. The pixels P1' are sequentially used as red pixels, green pixels, and blue pixels at different time points.

I will use red light as an example to illustrate. At the first time point, after the red light emitted by the pixel P1' is refracted via the convex lens 306, the light VZ1'(R) corresponding to the first viewing area is generated. Similarly, after the red light emitted by the pixels P2', P3', and P4' is refracted by the convex lens 306, red light VZ2' corresponding to the second field of view, the third field of view, and the fourth field of view is respectively generated (R ), VZ3' (R) and VZ4' (R). At a second time point, the green light emitted by the pixels P1', P2', P3', and P4' is refracted by the convex lens 306, and then generated corresponding to the first field of view, the second field of view, and the third field of view, respectively. Green light VZ1' (G), VZ2' (G), VZ3' (G) and VZ4' (G) in the fourth field of view (not shown). At the third time point, the blue light emitted by the pixels P1', P2', P3', and P4' is refracted by the convex lens 306, and then generated corresponding to the first field of view, the second field of view, and the third field of view, respectively. And the blue light of the fourth field of view VZ1' (B), VZ2' (B), VZ3' (B) and VZ4' (B) (not shown). Thus, by the persistence of the human eye, the user can view the colors represented by the pixels P1' to P4' by receiving the light of the three primary colors of the two fields of view in the four fields of view. Stereoscopic image.

3A and 3B, when the sub-pixels SP_R of the pixel P1 and the pixel P1' have the same area, under the condition that the display panel 302 and the transmissive display panel 204 have the same area, the embodiment is The number of stereoscopic image pixels of the hybrid multiplexed stereo display is three times that of the conventional spatial multiplexed stereoscopic image display. That is, the spatial resolution of the single field of view of the hybrid multiplexed stereoscopic display of the present embodiment is three times that of the conventional spatial multiplexed stereoscopic image display. Therefore, compared with the conventional spatial multiplexed stereoscopic image display, the hybrid multiplexed stereoscopic display of the present embodiment has the advantage of improving the spatial resolution of a single viewing area in the case of having the same number of fields of view.

Please refer to FIG. 4A and FIG. 4B , FIG. 4A is a schematic diagram showing the operation of a conventional spatial multiplexing stereoscopic image display, and FIG. 4B is a schematic diagram showing the operation of the hybrid multiplexed stereoscopic display according to another embodiment of the present disclosure. . It is assumed that the display of Figure 4A has four fields of view, while the display of Figure 4B has twelve fields of view.

The stereoscopic image display of FIG. 4A is the same as the stereoscopic image display of FIG. 3A, and can present a color image having four viewing zones. In Fig. 4B, it is assumed that the area of one of the pixels P1' to P12' is also the same as the area of any of the pixels P1 to P4. The display panel 302 and the transmissive display panel 404 have the same area, and the spatial resolution of the single view field of the hybrid multiplexed stereo display of the embodiment is the same as that of the conventional spatial multiplexed stereoscopic image display. The number of fields of view of this embodiment may be three times that of a conventional spatial multiplexed stereoscopic image display. In Fig. 4A, pixels P1 to P4 constitute a stereoscopic image pixel. In FIG. 4B, the display of the embodiment can form a stereoscopic image pixel by using a convex lens 406, for example, to generate 12 fields of view pixels in one stereoscopic image pixel. VZ1', VZ2', ..., VZ12'. It can be seen that the number of fields of view of the hybrid multiplexed stereo display shown in FIG. 4B can be three times that of the conventional spatial multiplexed stereoscopic image display shown in FIG. 4A.

5A, 5B, and 5C, FIG. 5A is a schematic diagram of image data transmission of a conventional four-view spatial multiplexed stereoscopic image display, and FIG. 5B illustrates a conventional four-view time multiplexing. A schematic diagram of image data transmission of a stereoscopic image display, and FIG. 5C is a schematic diagram showing image data transmission of a hybrid multiplexed stereoscopic display corresponding to the disclosure of FIG. 3B with four fields of view.

In FIG. 5A, the image data A (VZ1), A (VZ2), A (VZ3), and A (VZ4) of the four viewing areas of the screen A can be simultaneously transmitted to the display panel 302. At the next time point, the image data B (VZ1), B (VZ2), B (VZ3), and B (VZ4) of the four viewing areas of the picture B can be simultaneously transmitted to the display panel 302.

In FIG. 5B, the image data A (VZ1), A (VZ2), A (VZ3), and A (VZ4) of the four viewing areas of the screen A are sequentially transmitted to the display panel 502 at different time points. At the next four time points, the image data B (VZ1), B (VZ2), B (VZ3), and B (VZ4) of the four viewing areas of the picture B are sequentially transmitted to the display panel 502.

In Fig. 5C, the red video data A_R (VZ1'), A_R (VZ2'), A_R (VZ3'), and A_R (VZ4') of the four viewing areas of the screen A are simultaneously transmitted to the display panel 204. At the next time point, the green image data A_G (VZ1'), A_G (VZ2'), A_G (VZ3'), and A_G (VZ4') of the four viewing areas of the screen A are simultaneously transmitted to the display panel 204. At the next time point, the blue image data A_B (VZ1'), A_B (VZ2'), A_B (VZ3') and A_B (VZ4') of the four fields of the picture A are simultaneously transmitted to the display. Panel 204. As can be seen from FIG. 5B and FIG. 5C, the frequency of updating the image data required for the hybrid multiplexed stereoscopic display of the present embodiment is lower than that of the conventional time multiplexed stereoscopic image display. In particular, when the number of views is higher, the difference between the two will be more pronounced.

6A, 6B and 6C, FIG. 6A shows the signal waveform diagram of the traditional four-view spatial multiplex stereoscopic image display, and FIG. 6B shows the traditional four-view time multi-dimensional stereo. The signal waveform diagram of the image display, and FIG. 6C shows the signal waveform diagram of the hybrid multiplexed stereo display of the embodiment corresponding to FIG. 3B with four fields of view. As shown in FIGS. 6A, 6B, and 6C, V_sync represents a vertical sync signal of the display panel. R, G, and B represent the red, green, and blue lights emitted by the display panel, respectively.

As can be seen from FIG. 6A, for the spatial multiplexed stereoscopic image display, the display panel simultaneously generates red light R, green light G, and blue light B during the time period T1. The first field of view light VZ1, the second field of view light VZ2, the third field of view light VZ3, and the fourth field of view light VZ4 are also simultaneously generated.

As can be seen from FIG. 6B, for the time multiplexed stereoscopic image display, the display panel simultaneously generates red light R, green light G, and blue light B during the time period T1. The first field of view light VZ1, the second field of view light VZ2, the third field of view light VZ3, and the fourth field of view light VZ4 are generated in time periods T1, T2, T3, and T4, respectively. That is, for any pixel, light VZ1 to VZ4 of different viewing fields are generated in different time periods T1, T2, T3, and T4.

As can be seen from FIG. 6C, in the hybrid multiplexed stereoscopic display of the present embodiment, the display panel generates red light R, green light G, and blue light B in time periods T1, T2, and T3, respectively. The first view-of-view light VZ1', the second-view light VZ2', the third-view light VZ3', and the fourth-view light VZ4' corresponding to the sub-picture of the same color are simultaneously generated.

6A to 6C, compared with the spatial multiplexed stereoscopic image display, the spatial multiplexed stereoscopic image display is a single time, and a single image field can see the full image display screen, which is a full color picture. In this embodiment, for a single time, only a part of the image display screen image is seen in a single view, which is a single color picture. The hybrid multiplex stereoscopic display of the embodiment has both the spatial control field of view and the time-controlled color. Therefore, this embodiment has the advantages of both spatial control and time regulation.

In Figs. 3A and 3B, the area of one of the pixels P1' to P12' is the same as the area of any of the pixels P1 to P4. In the visual range in which the human eye is unresolvable, if the spatial resolution of the single view field of the hybrid multiplexed stereo display of the embodiment can be slightly reduced, the area of one of the pixels P1' to P12' is also designed to be larger than The area of any of the pixels P1 to P4. Take pixel P1 and pixel P1' as an example. The area of the pixel P1' may be smaller than the area of the pixel P1, and the area of the pixel P1' may be larger than one third of the area of the pixel P1. The horizontal width of the pixel P1' is smaller than the horizontal width of the pixel P1, and the horizontal width of the pixel P1' is larger than one third of the horizontal width of the pixel P1.

When the area of the pixel P1' is larger than the area of any of the pixels of the pixel P1, the aperture ratio of the pixel P1' may be larger than the aperture ratio of any of the pixels of the pixel P1. In this way, in the image viewed by the user, the dead zone-zone region generated by the opaque region between the pixel P1' and the adjacent pixel becomes smaller.

Please refer to FIG. 9 , which is a schematic diagram of a dark area in an embodiment of the disclosure. When the opaque region 902 between the pixel P1' and the adjacent pixel becomes smaller, the region of the dark region 904 corresponding to the opaque region 902 becomes smaller. In this way, the image quality can be improved.

In addition, the image splitter 106 can also be realized by an optical sheet 700 having pinholes, as shown in FIG. Such an image splitter 106 can also be referred to as a pinhole/barrier image splitter. It is formed by pinhole imaging to image images at different locations in space so that the image viewed by the user has at least two fields of view. For example, the light emitted by pixels P3' and P4' (which is red, green, or blue) is directed toward positions O1 and O2 via pinholes 702 and 704, respectively, to form two different fields of view, respectively. In particular, the image divider 106 can also be implemented by a color filter.

Please refer to FIG. 8A to FIG. 8C , which illustrate a hybrid multiplex stereo when the image splitter 106 is realized by the color filter 800 and the pixels are respectively displayed in a red sub-picture, a green sub-picture and a blue sub-picture. A schematic of another example of a display. The color filter 800 has a plurality of filter units, such as filter units 802, 804, and 806. The adjacent plurality of filter units respectively have different colors. The number of colors of the filter units is the same as the number of colors of light. In this embodiment, the number of colors of the filter unit is 3. The filter unit may be a red filter unit, a green filter unit or a blue filter unit, and the filter units of the three colors are sequentially arranged.

The light passing through the adjacent two pixels passes through a filter unit adjacent to the color of the corresponding light, so that the image viewed by the user has at least two fields of view. The pixels P3' and P4' are taken as an example for illustration. As shown in FIG. 8A, when the display panel displays a red sub-picture, the red light emitted by the pixels P3' and P4' will pass through the red filter unit 802 to reach the positions O1 and O2 to form different two. Sights. As shown in FIG. 8B, when the display panel displays a green sub-picture, the green light emitted by the pixels P4' and P5' will pass through the green filter unit 804 to reach the positions O1 and O2 to form different two. Sights. As shown in FIG. 8C, when the display panel displays a blue sub-picture, the blue light emitted by the pixels P5' and P6' will pass through the blue filter unit 806 to reach the positions O1 and O2 to form different respectively. Two views. The red filter unit 802, the green filter unit 804, and the blue filter unit 806 described above are sequentially arranged.

The side of the adjacent two red pixels can be inserted with an opaque pixel. For example, opaque pixels P2' and P5' are interposed on both sides of the adjacent red pixels P3' and P4'. The opaque pixels P2' and P5' turn the pixels P2' and P5' into a dark state, for example, by transmitting red image data corresponding to the dark state to the pixels P2' and P5'. In this way, interference of images between different viewing areas can be reduced.

An optical sheet similar to a pinhole can be achieved by using a color filter image splitter by the light of a particular color passing only the characteristics of the filter unit of a particular color.

10 is a schematic diagram of a hybrid multiplexed stereoscopic display in accordance with another embodiment of the present disclosure. Referring to FIG. 10, the hybrid multiplexed stereoscopic display 1000 includes a light source 1100, an image splitter 1200, and an image display 1300. The image splitter 1200 and the image display 1300 are disposed on the light source 1100. In particular, the image splitter 1200 may be, but not limited to, disposed between the image display 1300 and the light source 1100. In this embodiment, the light source 1100 is configured to sequentially provide the first light group L1 and the second light group L2 that are respectively directed to different emission directions. The image splitter 1200 is configured to transmit the first light group L1 to the first viewing group including the viewing areas V1 V V5, and to transmit the second optical group L2 to the second viewing group including the viewing areas V6 V V10 . Image display 1300 is used to provide the desired image data. Therefore, the first light group L1 and the second light group L2 of the image display 1300 and the image splitter 1200 respectively generate a plurality of view images in the viewing areas V1 V V10, so that the images viewed by the user include at least Two field of view images to achieve stereoscopic effects.

The first light group L1 and the second light group L2 are generated by the directional light-emitting elements 1122 and 1124, respectively. In one embodiment, the directional light-emitting elements 1122 and 1124 may include a plurality of dot-type light-emitting elements such as, for example, light-emitting diodes, but the disclosure is not limited thereto. In another embodiment, both of the directional light-emitting elements 1122 and 1124 can be formed from a linear light-emitting element that is configured with a reflector for directing light toward a particular direction of emission. In particular, any illuminating element that can be oriented toward a particular direction of emission can be utilized in embodiments of the present disclosure.

In this embodiment, the first light group L1 and the second light group L2 may be sequentially provided to form a view image located in the viewing areas V1 VV10. Here, the functions of the image splitter 1200 and the image display 1300 are similar to those of the image splitter 104 and the image display 106 described in the foregoing embodiments, and the display method used herein can also be referred to FIGS. 3B and 4B. The display method described.

Specifically, in a first stage, the directional light-emitting element 1122 is caused to emit light without causing the directional light-emitting element 1124 to emit light to separately provide the first light group L1. According to the image display method described in FIG. 3B and FIG. 4B, after the first light group L1 passes through the image splitter 1200 and the image display 1300, a plurality of view images can be transmitted to the viewing areas V1 V V5.

In a second stage, the directional light-emitting element 1124 is caused to emit light without causing the directional light-emitting element 1122 to emit light to separately provide the second light group L2. After the second light group L2 passes through the image splitter 1200 and the image display 1300, a plurality of viewing area images can be transmitted to the viewing areas V6 to V10. Therefore, the hybrid multiplexed stereoscopic display 1000 can display the view field image in 10 fields of view V1~V10 so that the image viewed by the user has at least two views in the 10 fields of view V1~V10. Domain imagery to achieve stereoscopic effects.

Based on the above display method, the image display 1300 and the light source 1100 can be operated synchronously. Therefore, the hybrid multiplexer 1000 can further include a synchronization controller 1400. The synchronization controller 1400 is connected to the image display 1300 and the light source 1100 to enable the image display 1300. The provided image data is synchronized with the light groups L1 and L2 provided by the light source 1100.

Moreover, in an embodiment of the present disclosure, the image display 1300 may have a function of color filtering to display color image data, and thus the first light group L1 and the second light group L2 may all be white light. In another embodiment, the image display 1300 does not have the function of color filtering, so that the first light group L1 and the second light group L2 passing through the image display 1300 can include multiple colors to cause the image display 1300 to display color image data. . The display method used in the hybrid multiplexed stereoscopic display 1000 can be referred to the display method described in FIGS. 5C and 6C.

For example, the image display 1300 can be a transmissive display panel having a plurality of pixels in FIGS. 3B and 4B to generate colorless image data. In the first stage in which the first light group L1 is separately provided, the directional light-emitting elements 1122 sequentially emit light of different colors instead of emitting white light. The plurality of colors of light emitted from the directional light-emitting elements 1122 can sequentially generate a plurality of sub-view images of a plurality of colors through the pixels of the transmissive display panel. Multiple sub-view images of multiple colors can form a view image of multiple colors viewed by the user in the fields of view V1~V5.

Next, in the second stage in which the second light group L2 is separately provided, the directional light-emitting elements 1124 may sequentially emit light of different colors while the directional light-emitting elements 1122 are not emitted. Therefore, multiple sub-view images of multiple colors can form a view image of multiple colors viewed by the user in the fields of view V6~V10. In one embodiment, the directional light-emitting elements 1122 and 1124 can each be a sequential directional light-emitting element to sequentially produce light of a plurality of colors. In addition, these colored lights may include red light, green light, blue light, and other kinds of color light. Therefore, the light groups L1 and L2 may include red light, green light, and blue light that are sequentially emitted.

In particular, two groups of views can be defined by the groups L1 and L2 that are directed to different directions of emission, and the light displayed by the two can form a large viewing angle to achieve a stereoscopic display with a wide viewing angle effect. Moreover, the ten fields of view V1 - V10 in one embodiment are substantially side by side in space. When the hybrid multiplexer 1000 displays a stereoscopic image for viewing by the user, if the position viewed by the user changes, the image viewed by the user may still be included in at least two of the ten fields of view V1 to V10. Sight image. For example, if the user views the view images of the views V2 and V3 at a first position U1, he or she can view the view images of the views V3 and V4 when moving to the position U2 at the viewing position. At this time, since the user can view the view images in different views V3 and V4, the stereo image can still be viewed. Thus, the parallax caused by the movement can be reduced by the increase in the number of views, thereby improving the image quality of the stereoscopic display.

In this embodiment, the viewing zones V1 V V5 in the first viewing zone group or the viewing zones V6 V V10 in the second viewing zone group are displayed synchronously, so the visual field images in the respective viewing zones V1 V V10 The resolution is 1/5 of the resolution of the image display 1300. However, the conventional spatial multiplex stereoscopic display described in FIG. 5A must reduce the viewing area image of each viewing area to 1/10 of the image display if it is to reach ten fields of view. Therefore, the hybrid multiplexed stereoscopic display 1000 in this embodiment can significantly improve the resolution of the stereoscopic image.

Moreover, in order to achieve the ten-view images V1 VV10 in the present embodiment to generate a stereoscopic image, the frequency of updating the image display 1300 and the light source 1100 must be twice as high as the original. However, the conventional time multiplex stereoscopic display described in FIG. 5B must increase the update frequency of the image display to ten times the original image to generate a stereoscopic image, which will impose a significant burden on the driving circuit and thus cause the display to be displayed. Deterioration. Therefore, the hybrid multiplexed stereoscopic display 1000 of the present embodiment can reduce the burden originally placed on the driving circuit while achieving more fields of view.

In addition, the hybrid multiplexed stereoscopic display 1000 can provide stereoscopic images in ten fields of view V1 to V10 by two directional light-emitting elements 1122 and 1124. Nevertheless, the embodiment is not limited thereto. In another embodiment, the number of directional light-emitting elements may exceed two. FIG. 11 illustrates a hybrid multiplexed stereoscopic display in accordance with another embodiment of the present disclosure. Referring to FIG. 11, the hybrid multiplex stereoscopic display 2000 is similar to the hybrid multiplexed stereoscopic display 1000. The hybrid multiplexed stereoscopic display 2000 includes a light source 2100, an image splitter 2200, and an image display 2300. The image splitter 2200 and the image display 2300 are substantially the same as the image splitter 1200 and the image display 1300 illustrated in FIG. 10, and the method of operating the image splitter 2200 and the image display 2300 can also refer to the above-described operation method. In particular, the main difference between the hybrid multiplexed stereoscopic display 2000 and the hybrid multiplexed stereoscopic display 1000 is that the light source 2100 has three directional light-emitting elements 2120.

In the present embodiment, the three directional light-emitting elements 2120 emit light toward three different emission directions to provide a first light group L1, a second light group L2, and a third light group L3. According to the display method described above, the first light group L1 is passed through the image splitter 2200 and the image display 2300 to display a plurality of view images in the fields V1 V V7, so that the second light group L2 passes through the image splitter 2200 and the image. The display 2300 can display a plurality of viewing area images in the viewing areas V8-V14, and the third light group L3 can pass through the image splitter 2200 and the image display 2300 to display a plurality of viewing area images in the viewing areas V15-V21. That is, in this embodiment, the first light group L1, the second light group L2, and the third light group L3 may each provide a field of view group including seven fields of view to achieve twenty-one fields of view, and further Improve the display quality of stereoscopic images. In this embodiment, each of the light-emitting elements 2120 can be configured to provide a plurality of colors in sequence by using a sequential light-emitting element. Thus, even if the image display 2300 does not have a color filter function, the three-dimensional display can be displayed. image.

12A and 12B illustrate a hybrid multiplexed stereoscopic display in accordance with another embodiment of the present disclosure. 12A and 12B, the hybrid multiplexed stereoscopic display 3000 includes a light source 3100, an image splitter 3200, and an image display 3300. The image splitter 3200 and the image display 3300 are disposed on the light source 3100 and are similar to the image splitter and the image display mentioned in the foregoing embodiments. Therefore, the main function of the image splitter 3200 is to transmit the light emitted from the light source 3100 to a specific field of view, and the main function of the image display 3300 is to provide image data. In the present embodiment, the image splitter 3200 is disposed between the light source 3100 and the image display 3300. However, in another embodiment, the image display 3300 can be selectively disposed between the image splitter 3200 and the light source 3100.

In the present embodiment, the light source 3100 includes two directional light-emitting elements 3122 and 3124. The directional light-emitting element 3122 emits a first light group L1, and the directional light-emitting element 3124 emits a second light group L2, wherein the first light group L1 and the second light group L2 are directed to different emission directions. The first light group L1 and the second light group L2 may be alternately generated to display a stereoscopic image.

Specifically, in a first stage, referring to FIG. 12A, the directional light-emitting element 3122 is caused to emit light to provide the first light group L1 while not causing the directional light-emitting element 3124 to emit light. The first light group L1 can be passed through the image splitter 3200 and the image display 3300 and then transferred to the fields of view V1, V3, ..., V2n-1 of the first field group, where n is an integer greater than zero. Therefore, multiple view images can be generated in the fields of view V1, V3, ..., V2n-1 in the first view group.

In a second stage, as shown in FIG. 12B, the directional light-emitting element 3124 is caused to emit light while not causing the directional light-emitting element 3122 to emit light to provide the second light group L2, and to pass the second light group L2 through the image. The divider 3200 and the image display 3300. According to the functions of the image splitter 3200 and the image display 3300, the second light group L2 can be transmitted to the fields of view V2, V4, ..., V2n in the second view group to generate a plurality of view images.

In this embodiment, the emission directions of the first light group L1 and the second light group L2 are different, so the first light group L1 and the second light group L2 can be transmitted to one space by the function of the image splitter 3200. Different view groups within the scope. Therefore, in the present embodiment, the fields of view V2, V4, ..., V2n can be interposed between the fields of view V1, V3, ..., V2n-1, and a total of 2n views can be defined. In this embodiment, the view images of the viewing zones V1, V3, ..., V2n-1 in the first view group and the view images of the views V2, V4, ..., V2n in the second view group are All are to be displayed synchronously. Therefore, the resolution of the respective view images of the viewing areas V1 VV2n can be 1/n of the resolution of the image display 3300, which can improve the poor resolution of the conventional spatial multiplex stereoscopic display as described in FIG. 5A. Moreover, in this embodiment, when the viewing area image is displayed in 2n fields of view for generating a stereoscopic image, the update frequency of the image display 3300 is twice that of the original, and the required update frequency is compared with the learning described in FIG. 5B. Knowing that the time multiplexed stereo display achieves the same effect requires a much lower update frequency. Therefore, the hybrid multiplex stereo display can alleviate the burden on the driving circuit.

In the foregoing embodiments illustrated in FIG. 10 and FIG. 11, since the view image in one view group is displayed synchronously, it is displayed with another view component. However, as long as the two view images in the same view group are too far apart, the stereoscopic image viewed by the user may become discontinuous, causing the user to obtain an uncomfortable stereoscopic feeling. In order to reduce the occurrence of such a situation, portions of the viewing zones of different viewing zone groups may be overlapped by changing the display conditions of the hybrid multiplexed stereoscopic display 3000. Please refer to FIG.

FIG. 13 is a schematic diagram of a hybrid multiplex stereoscopic display in still another embodiment of the disclosure. Referring to FIG. 13, in the present embodiment, the viewport transmitted by the first light group L1 from the directional light-emitting element 3122 through the image splitter 3200 and the image display 3300 is defined as the view V1 in the first view group. , V3, ..., V2n-1. The field of view transmitted from the directional light-emitting element 3124 through the image divider 3200 and the image display 3300 by the second light group L2 is defined as the fields of view V2, V4, ..., V2n in the second view group. Here, the fields of view V2, V4, ..., V2n are interposed one by one in the adjacent two fields of view of the fields V1, V3, ..., V2n-1, so this embodiment can provide 2n fields of view V1 ~V2n.

In the present embodiment, the interval S1 between adjacent two views in the fields V1, V3, ..., V2n-1 and the interval between adjacent two fields in the fields V2, V4, ..., V2n S2 is smaller than the width of any of the 2n fields of view V1 to V2n. Therefore, there is a partial overlap between the viewing zones V1, V3, ..., V2n-1 in the first viewing group and the viewing zones V2, V4, ..., V2n in the second viewing group, because of the different viewing angles. The images can be continuous and provide a more vivid stereoscopic effect, so the method can improve the display quality of the hybrid multiplex stereoscopic display 3000.

More specifically, FIG. 14 is a schematic diagram of light displayed by the hybrid multiplex stereoscopic display illustrated in FIG. Referring to FIG. 13 and FIG. 14 simultaneously, in order to provide images required in the viewing zones V1 V V2n, the image display 3300 has at least one opaque region 3302 when displaying images. Therefore, at least one dark area DA corresponding to the opaque area 3302 separates the view images of the two adjacent views V2n-1 and V2n-3 belonging to the first view group, and the same situation also occurs. A view image of two adjacent fields of view V2n and V2n+2 of the second field of view group.

When the first light group L1 is separately provided, there is no display light in the dark area DA, which means that the dark area DA is a non-display area and has a negative influence on the brightness (or display aperture ratio) of the overall display. In this embodiment, portions of the fields of view V2n and V2n-1 belonging to different groups of views overlap. A part of the view image of the view V2n of the second view group will fall in the dark area DA. Therefore, the region which is the dark region DA during the period in which the first light group L1 is separately emitted becomes a displayable region during the period in which the second light group is emitted. In this way, a continuous display image can be formed, and the user feels comfortable when viewing the stereoscopic image displayed by the hybrid multiplexed stereoscopic display 3000.

This embodiment is exemplified by the design of the hybrid multiplexer stereo display 3000 having two directional light-emitting elements 3122 and 3124. However, in other embodiments, the number of directional light-emitting elements may be greater than two to define A plurality of view groups, wherein different view groups can be partially overlapped for better stereoscopic display quality.

The hybrid multiplexed stereoscopic display of an embodiment of the present disclosure may have the following features. Compared with the traditional space multiplexed stereoscopic image display, the mixed multiplexed stereoscopic display of the present disclosure can have a higher single field of view resolution, or the number of fields of view that the image splitter can divide is more, and Make the display have more fields of view. Therefore, the quality of the stereoscopic image can be improved. Furthermore, by adjusting the pixel size and reducing the non-light-emitting area, the aperture ratio of the pixel can be increased to increase the brightness.

When the resolution of a single field of view is increased, optical interference between the image display and the image splitter can be effectively reduced. When the number of views increases, the motion parallax is easier to control, and the viewer is more likely to view the image in the correct field of view, which can effectively improve the viewing quality.

In addition, the pixels of the display panel of the present disclosure can eliminate the need for color filters, and the brightness of the display panel can be greatly improved. Moreover, the hybrid multiplexed stereoscopic display of the present disclosure can achieve high spatial resolution without using the viewer tracing system, and the naked-eye stereoscopic image display whose frequency of the signal is not too high is quite competitive in the market. In particular, the present disclosure is also easier to achieve super multi-view 3D display/hologram-like 3D display requirements than conventional spatial multiplexed stereoscopic image displays. .

In summary, the mixed multiplex stereoscopic display of the present disclosure can at least improve the brightness of the display, and has better display quality (higher display brightness) at a large viewing angle, and can reduce the number of viewing areas. The resulting mobile parallax can achieve higher resolution than traditional spatial multiplexed displays by time multiplexed light source and spatial multiplexed images, and can reduce (or completely eliminate) dark areas to achieve more comfortable visual effects. .

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

100, 200, 1000, 2000, 3000. . . Hybrid multiplex stereo display

102, 1100, 2100, 3100. . . light source

104, 1300, 2300, 3300. . . Image display

106, 1200, 2200, 3200. . . Image splitter

202. . . Sequential backlight module

204. . . Penetrating display panel

208. . . Lens array

302, 502. . . Display panel

304, 306, 406. . . Convex lens

700. . . Optical sheet

702, 704. . . Pinhole

800. . . Color filter

802, 804, 806. . . Filter unit

902, 3302. . . Opaque zone

904, DA. . . dark zone

1122, 1124, 2120, 3122, 3124. . . Directional light-emitting element

1400. . . Synchronous controller

P1 to P4, P1' to P5', P12'. . . Pixel

1A and 1B are schematic diagrams showing a hybrid multiplexed stereoscopic display in accordance with an embodiment of the present disclosure.

2 is an exploded view of an example of the hybrid multiplexed stereoscopic display of FIG. 1.

FIG. 3A is a schematic diagram showing the operation of a conventional space multiplexed stereoscopic image display.

FIG. 3B is a schematic diagram showing the operation of a hybrid multiplexed stereoscopic display according to an embodiment of the present disclosure.

FIG. 4A is a schematic diagram showing the operation of a conventional spatial multiplexing stereoscopic image display.

FIG. 4B is a schematic diagram showing the operation of a hybrid multiplexed stereoscopic display according to another embodiment of the present disclosure.

FIG. 5A is a schematic diagram showing image data transmission of a spatially multiplexed stereoscopic image display of four conventional viewing zones.

FIG. 5B is a schematic diagram showing image data transmission of a time-multiplexed stereoscopic image display of four conventional viewing zones.

FIG. 5C is a schematic diagram showing image data transmission of the hybrid multiplexed stereoscopic display corresponding to the disclosure of FIG. 3B with four fields of view.

FIG. 6A is a diagram showing signal waveforms of a spatially multiplexed stereoscopic image display of four conventional viewing zones.

FIG. 6B is a diagram showing signal waveforms of a time-multiplexed stereoscopic image display of four conventional viewing zones.

FIG. 6C is a diagram showing signal waveforms of the hybrid multiplexed stereoscopic display corresponding to the disclosure of FIG. 3B with four fields of view.

FIG. 7 is a schematic diagram of a hybrid multiplexed stereoscopic display in which the optical sheet with pinholes is used as the image splitter.

8A to 8C illustrate a hybrid multiplexer in which a picture splitter is represented by a color filter and a red sub-picture, a green sub-picture, and a blue sub-picture are respectively displayed when the image splitter is achieved by the color filter. Schematic diagram of a stereoscopic display.

FIG. 9 is a schematic diagram of a non-light-emitting area on an image display corresponding to a dark view (Dead View-zone) in an embodiment of the present disclosure.

FIG. 10 is a schematic diagram of a hybrid multiplexed stereoscopic display according to another embodiment of the present disclosure.

11 is a schematic diagram of a hybrid multiplexed stereoscopic display in accordance with another embodiment of the present disclosure.

12A and 12B are schematic diagrams showing a hybrid multiplexed stereoscopic display in accordance with another embodiment of the present disclosure.

FIG. 13 is a schematic diagram of a hybrid multiplexed stereoscopic display according to another embodiment of the present disclosure.

14 is a schematic diagram of light displayed on a hybrid multiplexed stereoscopic display in accordance with the embodiment of FIG.

1000. . . Hybrid multiplex stereo display

1100. . . light source

1122, 1124. . . Directional light-emitting element

1200. . . Image splitter

1300. . . Image display

1400. . . Synchronous controller

Claims (17)

A hybrid multiplexed stereoscopic display includes: a light source sequentially providing a plurality of light groups directed to different emission directions; and an image divider disposed above the light source to respectively transmit the light groups to the plurality of views a group of the groups, each of the group of sights corresponding to each of the group of light groups, and each group of the field of view includes a plurality of fields of view; and an image display disposed above the light source to provide image data, the light groups And the image display device and the image segmenter respectively generate a plurality of view image images in the view fields, so that one of the images viewed by the user includes at least two view images of the view group, This achieves a stereoscopic effect. The hybrid multiplexed stereoscopic display of claim 1, wherein the light source comprises a plurality of directional light-emitting elements, and the directional light-emitting elements sequentially emit the light groups. The hybrid multiplexed stereoscopic display of claim 2, wherein the directional light-emitting element comprises a plurality of light-emitting diodes. The hybrid multiplexed stereoscopic display of claim 1, wherein at least one of the one view group and the at least one of the other view groups overlap. According to the hybrid multiplex stereoscopic display of claim 1, the one view group and the other view group are separated from each other. The hybrid multiplexer stereoscopic display of claim 1, further comprising a synchronization controller connected to the image display and the light source to enable the image displayed by the image display and the image The light groups provided by the light source are synchronized. The hybrid multiplexed stereoscopic display of claim 1, wherein each of the light groups comprises a plurality of colors of light sequentially provided. The hybrid multiplexed stereoscopic display of claim 7, wherein the image display is a transmissive display panel having a plurality of pixels, the pixels producing a colorless image, the colors The light sequentially passes through the pixels to sequentially generate a plurality of sub-view images of the colors, and the sub-view images of the colors form the plurality of colors of the colors viewed by the user. Sight image. The hybrid multiplexed stereoscopic display according to claim 8, wherein the transmissive display panel is a transmissive liquid crystal display panel, or a transmissive electro-optical controller capable of regulating light intensity. The hybrid multiplexed stereoscopic display of claim 7, wherein the light source comprises a plurality of sequential directional light-emitting elements, and each of the sequential directional light-emitting elements sequentially generates light of the colors to form the light source. One of the light groups of these light groups. A display method for a hybrid multiplexed stereoscopic image includes: sequentially providing a plurality of light groups that are directed to different emission directions by a light source; and transmitting the light groups to the plurality of viewing groups by an image splitter, Each of the view groups corresponds to each of the groups of light, and each of the groups of views includes a plurality of fields of view; and image data is provided by an image display, and the groups of light sequentially pass through the image display and the image segmentation To generate a plurality of view images in the fields of view, such that one of the images viewed by a user includes the images At least two view images of the view group, thereby achieving a stereoscopic effect. The method for displaying a mixed multiplexed stereoscopic image according to claim 11, wherein the method for sequentially providing the light groups directed to different emission directions by the light source comprises sequentially emitting a plurality of directivity Light. The method for displaying a mixed multiplexed stereoscopic image according to claim 11, wherein at least one of the viewing zones to which one light group is directed and the viewing zones to which the other optical group is directed At least one of the at least one of them overlaps. The method for displaying a mixed multiplexed stereoscopic image according to claim 11, wherein the fields of view to which one group of light is directed and the fields of view to which the other group of lights are directed are separated from each other. The method for displaying a mixed multiplexed stereoscopic image according to claim 11, further comprising: providing an image displayed by the image display and the light source by a synchronization controller connected to the image display and the light source The light groups are synchronized. The method for displaying a mixed multiplexed stereoscopic image according to claim 11, wherein the method of providing each light group by the light source comprises sequentially generating light of a plurality of colors. The method for displaying a mixed multiplexed stereoscopic image according to claim 16, wherein the image display is a transmissive display panel having a plurality of pixels, the pixels generating a colorless image, and the plurality of pixels The light of the color sequentially passes through the pixels to sequentially generate a plurality of sub-view images of the colors, and the sub-view images of the colors form the colors viewed by the user. These view images.