WO2015180401A1 - Naked eye 3d display control method, apparatus and system - Google Patents

Abstract

A naked eye 3D display control method, apparatus and system. The control method comprises: determining a 3D left eye visual view and a 3D right eye visual view; and displaying sub-pixel views, apart from the 3D left eye visual view and the 3D right eye visual view, of a display module (20) in black. According to the technical scheme provided by the present invention, since the sub-pixel views apart from the 3D left eye visual view and the 3D right eye visual view are displayed in black, unnecessary views can be prevented from being seen by human eyes. Therefore, the image crosstalk can be effectively reduced, and the 3D display quality can be improved.

Description

Open-hole 3D display control method, device and system Technical field

At least one embodiment of the present invention is directed to a naked eye 3D display control method, apparatus, and system.

Background technique

With the development of technology, 3D display, especially the naked-eye 3D display has become one of the inevitable trends in the display field. The principle of the common naked-eye 3D display technology is to divide the picture into two different angle images suitable for the left and right eyes. After the grating, a plurality of mutually spaced left view and right view are presented in front of the display panel. Area. When the left eye of the viewer is located in the left viewing zone and the right eye is located in the right viewing zone corresponding to the left viewing zone, the left eye of the viewer can see the corresponding left eye image, and the right eye can see the corresponding right eye image, the left eye image and The right eye image is a pair of stereo image pairs so that the brain can fuse them into a 3D image, and the viewer enjoys the 3D stereoscopic image.

Summary of the invention

At least one embodiment of the present invention provides a naked eye 3D display control method, apparatus, and system for reducing image crosstalk and improving display quality of a 3D display.

At least one embodiment of the present invention provides a naked eye 3D display control method, including: determining a 3D left eye visible view and a 3D right eye visible view; dividing the display module by a 3D left eye visible view and a 3D right eye Subpixel views outside the view are shown in black.

At least one embodiment of the present invention also provides a naked eye 3D display control apparatus, comprising: a determining module for determining a 3D left eye visible view and a 3D right eye visible view; and a display control module for displaying the display module Sub-pixel views other than the 3D left-eye view and the 3D right-eye view are displayed in black.

At least one embodiment of the present invention also provides a naked eye 3D display control system including: a display module for displaying a left eye view and a right eye view; a liquid crystal grating module located at a front side of the display module; and a control module, respectively Connected to the display module, the liquid crystal grating module signal, and used to determine the 3D left-eye view and the 3D right-eye view, and display the sub-pixel view of the display module in addition to the 3D left-eye view and the 3D right-eye view. Displayed in black.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below. It is obvious that the drawings in the following description relate only to some embodiments of the present invention, and are not intended to limit the present invention. .

1 is a schematic structural view of a 3D display device;

2 is a schematic flow chart of a naked eye 3D display control method according to an embodiment of the present invention;

3 is a schematic flow chart of a naked eye 3D display control device according to an embodiment of the present invention;

4 is a schematic flow chart of a naked eye 3D display control system according to an embodiment of the present invention;

5 is a schematic diagram of a sub-pixel unit arranged according to a five-view two-ninth method;

6 is a white light luminance distribution curve diagram of a 3D display module adopting the arrangement of FIG. 5;

FIG. 7 is a schematic flow chart of a naked eye 3D display control system according to another embodiment of the present invention.

detailed description

The technical solutions of the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present invention without departing from the scope of the invention are within the scope of the invention.

FIG. 1 is a schematic structural view of a 3D display device. As shown in FIG. 1, the naked-eye 3D display device may include a backlight 1, a display panel 2, and a liquid crystal grating device 3. The display panel 2 includes a left-eye sub-pixel providing a left-eye view and a right-eye sub-pixel providing a right-eye view; the liquid crystal grating device 3 is an optical device including a light-shielding region 3a and a light-transmitting region 3b which can exhibit periodic alternately arranged. The basic principle of the display device is that the backlight 1 provides backlight for the display panel 2, and light emitted from the left-eye sub-pixel and the right-eye sub-pixel of the display panel 2 is incident on different fields of view through the light-transmitting region 3b of the liquid crystal grating device 3. Inside, the viewer's left and right eyes fall within different fields of view, creating a three-dimensional sensation.

The inventor of the present application noticed that the light-shielding area blocks the light emitted by the right eye sub-pixel for the viewer's left eye, and also blocks the left-eye sub-pixel light for the viewer's right eye, however, when the viewer is not in the comparison When the viewing position is good, the left eye may see the light emitted by the sub-pixel of the right eye, and the right eye sees the light emitted by the sub-pixel of the left eye, so that the image crosstalk is caused by the viewing, and therefore, the display of the 3D display device shown in FIG. The effect is not ideal.

In order to reduce image crosstalk and improve display quality of a 3D display, at least one embodiment of the present invention provides a naked eye 3D display control method, apparatus, and system. In the embodiment of the present invention, the sub-pixel view of the display module except the 3D left-eye view and the 3D right-eye view is displayed in black, so that the human eye can be prevented from seeing unnecessary views, thereby effectively reducing Image crosstalk improves the display quality of 3D displays. In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below.

As shown in FIG. 2, a naked eye 3D display control method provided by at least one embodiment of the present invention includes the following steps:

Step 101: Determine a 3D left-eye view and a 3D right-eye view;

Step 102: Display the sub-pixel view of the display module except the 3D left-eye visible view and the 3D right-eye visible view as black.

The 3D left-eye view and the 3D right-eye view are views that can be seen by the viewer's left and right eyes, respectively, and are capable of producing a 3D effect. In the case shown, for example, in FIG. 1, the display module (display panel 2 in FIG. 1) displays a left-eye view and a right-eye view arranged in a regular pattern, and the view that is not desired to be seen is blocked by the light-shielding area of the grating, however When the viewer is not in the preferred viewing position, these views may still be seen, thereby viewing image crosstalk. In the embodiment of the present invention, since the sub-pixel view of the display module except the 3D left-eye visible view and the 3D right-eye visible view is displayed as black, the human eye can be prevented from seeing unnecessary views, and therefore, can be effective. Reduce image crosstalk and improve the display quality of 3D display.

In one embodiment, the determining the 3D left-eye visual view and the 3D right-eye visual view may be implemented by determining a distance screen according to the at least one viewer's eye position information detected by the human eye sensing module. The main viewer closest to the center position; the 3D left eye view and the 3D right eye view are determined based on the main viewer's eye position information. This embodiment allows the primary viewer to view the preferred naked-eye 3D display without having to adjust the position.

In one embodiment, the method may further include: adjusting a raster position of the liquid crystal grating module according to the eye position information of the primary viewer. This enables the left and right eyes of the primary viewer to view the 3D left-eye view and the 3D right-eye view of the maximum brightness, respectively, to obtain a better 3D visual effect.

In at least one embodiment, the method may further include: increasing a brightness of the backlight portion corresponding to the 3D left-eye view and the 3D right-eye view to a first brightness setting; The backlight portion corresponding to the view other than the 3D left-eye view and the 3D right-eye view is closed, or the backlight corresponding to the view other than the 3D left-eye view and the 3D right-eye view The brightness of the portion is reduced to a second brightness setting value that is less than the first brightness setting value.

The corresponding backlight portion can be turned off or reduced in brightness according to relevant experience or requirements for brightness uniformity. The solution can improve the overall brightness of the 3D display, make the display effect more excellent, and effectively reduce the backlight energy consumption, which is conducive to energy saving and environmental protection.

In the method provided by the embodiment of the present invention, the number of viewers is not specifically limited. For example, when the viewer is at least two, for each secondary viewer except the primary viewer, the method may further include: obtaining a corresponding secondary view based on the secondary viewer's eye position information The left eye and the right eye of the person respectively see the viewing position adjustment information of the 3D left eye visible view and the 3D right eye visible view; and the viewing position adjustment information is output. Viewing position adjustment information can direct the secondary viewer to quickly move to a better viewing position for better 3D viewing.

In one embodiment, the viewing position adjustment information may be such that the left and right eyes of the secondary viewer can see the minimum position adjustment distance of the 3D left eye visible view and the 3D right eye visible view, respectively. The movement of the secondary viewer follows the principle of proximity, which is beneficial to improve the efficiency of position adjustment and make the 3D display control more humanized.

As shown in FIG. 3, based on the same inventive concept, a naked-eye 3D display control apparatus provided by at least one embodiment of the present invention includes: a determining module 12 for determining a 3D left-eye visible view and a 3D right-eye visible view; The display control module 13 is configured to display the sub-pixel view of the display module in addition to the 3D left-eye view and the 3D right-eye view as black.

In an embodiment, the determining module 12 may be configured to determine, according to the at least one viewer's eye position information detected by the human eye sensing module, a primary viewer that is closest to the center of the screen; according to the primary viewer's eye position information. Determine the 3D left eye visual view and the 3D right eye visual view.

In an embodiment, the naked eye 3D display control device may further include: a grating adjustment module 14 configured to adjust a raster position of the liquid crystal grating module according to the eye position information of the main viewer.

In one embodiment, the display control module 13 is further configured to increase the brightness of the backlight portion corresponding to the 3D left-eye view and the 3D right-eye view to the first brightness setting; and divide the 3D left eye The backlight portion corresponding to the view other than the visible view and the 3D right-eye view is closed, or the brightness of the backlight portion corresponding to the view other than the 3D left-eye view and the 3D right-eye view is lowered Up to a second brightness setting value, the second brightness setting value is smaller than the first brightness setting value.

In an embodiment, the naked-eye 3D display control device may further include: a calculation module 15 for, when the viewer is at least two, for each secondary viewer except the primary viewer, according to the secondary viewer The eye position information is obtained corresponding to viewing position adjustment information enabling the left and right eyes of the secondary viewer to see the 3D left eye visible view and the 3D right eye visible view, respectively; and an output module 16 for outputting View location adjustment information.

Similarly, the naked-eye 3D display control device can prevent the human eye from seeing unnecessary views, and therefore can effectively reduce image crosstalk and improve the display quality of the 3D display.

As shown in FIG. 4, based on the same inventive concept, a naked-eye 3D display control system provided by at least one embodiment of the present invention includes: a display module 20 for displaying a left eye view and a right eye view; located at the front side of the display module The liquid crystal grating module 30; the control module 50 is respectively connected to the display module 20 and the liquid crystal grating module 30, and is used for determining the 3D left-eye visual view and the 3D right-eye visual view, and the display module 20 can be divided by the 3D left eye. The sub-pixel view outside the view and 3D right-eye view is displayed in black.

The specific layout of the sub-pixel unit of the display module 20 is not limited. In at least one embodiment, as shown in FIG. 5, the sub-pixel units of the display module 20 can be arranged in a five-view two-ninth manner; the grating angle of the liquid crystal grating module 30 is 77.47 degrees or 102.53 degrees. In the five-view two-ninth method, the image is displayed at five different angles (the view taken at each angle in Figure 5 is represented by a mark); taking view 1 as an example, as shown in Figure 5, The coordinates of view 1 in the xth row and the yth column are (x, y), and the coordinates of view 1 are (x, y) (x+1, y+1), (x+1, y+2); The coordinates of 2 are (x+1, y), (x+2, y+1), (x+2, y+2); the coordinates of view 3 are (x+2, y), (x+3, y+1), (x+3, y+2); the coordinates of view 4 are (x+3, y), (x+4, y+1), (x+4, y+2); view 5 The coordinates are (x+4, y), (x+5, y+1), (x+5, y+2); and, x=1, 3, 5, 7..., y=1, 4 , 7, 10, .... Due to the role of the grating, the viewer can only see one view per eye while viewing, so each viewer can only see two views (ie a set of views), which allows the viewer to watch differently. See the different sets of views when viewing the location. Based on practical experience and theoretical derivation, this pixel layout method has the weakest moiré pattern and can provide a better 3D display effect.

As shown in FIG. 4, in one embodiment, the control system may further include a human eye sensing module 40 for detecting eye position information; the control module 50 is coupled to the human eye sensing module 40 for use according to the human eye. At least one viewer's eye position information detected by the sensing module 40 determines a distance screen The main viewer closest to the center position; the 3D left eye view and the 3D right eye view are determined based on the main viewer's eye position information. The embodiment of the invention can enable the main viewer to view the better naked-eye 3D display effect without having to adjust the position.

The white light brightness distribution curve of the 3D display module adopting the above-mentioned layout mode is as shown in FIG. 6. It can be seen that the closer the viewing position is to the center of the screen, the higher the brightness value of the view. Determining the 3D left-eye visible view and the 3D right-eye visible view according to the primary viewer's eye position information means that the view seen by the primary viewer is determined according to the primary viewer's human eye position. For example, the human eye is close to the center of the screen, and it can be determined that the views seen by the left and right eyes of the main viewer are 1, 3 views, that is, the 1 and 3 views are 3D left eye visible view and 3D right eye visible view; At this time, if the 2, 4, and 5 views are displayed in black, the human eye will not be able to see the views other than the 1 and 3 views, so that the image crosstalk can be effectively reduced, and a better 3D viewing effect can be obtained.

In an embodiment, the control module 50 can also be configured to adjust the raster position of the liquid crystal grating module 30 according to the eye position information of the main viewer, so that the left and right eyes of the main viewer can respectively view the 3D of the maximum brightness. The left eye visible view and the 3D right eye visible view, that is, the view near the zero degree view shown in FIG. The main viewer can see the most intense view when viewing the 3D display, thus obtaining a better 3D visual effect.

As shown in FIG. 7 , in one embodiment, the display module 20 can be a liquid crystal display module, including a liquid crystal panel 201 and a direct type backlight 202 located on the back side of the liquid crystal panel 201; the control module 50 can be combined with the liquid crystal panel 201 and the direct type The backlight 202 is signally connected. In at least one embodiment, the display module 20 can also be configured to increase the brightness of the backlight portion corresponding to the 3D left-eye view and the 3D right-eye view to the first brightness setting; and divide the 3D left eye The backlight portion corresponding to the view other than the visible view and the 3D right-eye view is closed, or the brightness of the backlight portion corresponding to the view other than the 3D left-eye view and the 3D right-eye view is lowered to a second brightness setting value, the second brightness setting value being smaller than the first brightness setting value. The naked-eye 3D display control system in this embodiment can improve the overall brightness of the 3D display, and the display effect is more excellent, and the backlight energy consumption is effectively reduced, which is beneficial to energy saving and environmental protection.

In an embodiment, the control module 50 is further configured to: when the viewer is at least two, obtain corresponding to the secondary viewer's eye position information for removing each secondary viewer other than the primary viewer. The left eye and the right eye of the secondary viewer can be respectively seen the viewing position adjustment information of the 3D left eye visible view and the 3D right eye visible view; and the viewing position adjustment information is output. View location Adjusting the information can direct the secondary viewer to quickly move to the preferred viewing position for better 3D viewing. The viewing position adjustment information may be output to the audio device for voice prompting, or may be output to the display device for subtitle or graphic prompting.

Taking the sub-pixel unit of the display module as an example according to the five-view two-ninth method, the working process of the naked-eye 3D display control system shown in FIG. 7 may include, for example, turning on the 3D display mode; the human eye sensing module detecting the position of the human eye. The control module determines a main viewer closest to the center position of the screen according to the plurality of viewers' eye position information, and determines a 3D left-eye view and a 3D right-eye view according to the main viewer's eye position information, For example, 1 and 3 views respectively as shown in FIG. 5; adjusting the raster position of the liquid crystal grating module according to the eye position information of the main viewer, so that the left eye and the right eye of the main viewer can respectively view the maximum brightness of 1 view. And 3 views; black, 2, 4, 5 views as shown in FIG. 5 to reduce crosstalk; increase the brightness of the backlight portion corresponding to the 1 view and the 3 view to the first brightness setting, and 2 The brightness of the backlight portion corresponding to the 4, 5 view is lowered to the second brightness setting value; for each secondary viewer except the primary viewer, according to the secondary viewer's eye position information, follow According to the principle, corresponding viewing position adjustment information capable of making the left and right eyes of the secondary viewer respectively see 1 view and 3 views; outputting the viewing position adjustment information to the media device for voice or subtitle, graphic prompting, guiding the viewer Find the best 3D viewing position.

It can be seen that when viewing by multiple people, each viewer can obtain a better 3D visual effect, and the display quality of the 3D display is greatly improved.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

The present application claims the priority of the Chinese Patent Application No. 201410234493.5 filed on May 29, 2014, the entire disclosure of which is hereby incorporated by reference.

Claims (17)

1. A naked eye 3D display control method includes:

   Determining a 3D left eye view and a 3D right eye view;

   The sub-pixel view of the display module except the 3D left-eye view and the 3D right-eye view is displayed in black.
2. The control method according to claim 1, wherein

   Determining a primary viewer closest to a center position of the screen according to at least one viewer's eye position information detected by the human eye sensing module;

   The 3D left eye visible view and the 3D right eye visible view are determined based on the primary viewer's eye position information.
3. The control method of claim 2, further comprising:

   The raster position of the liquid crystal grating module is adjusted according to the eye position information of the main viewer.
4. The control method according to claim 2 or 3, wherein, when the viewer is at least two, for each secondary viewer other than the primary viewer, the method further comprises:

   Obtaining corresponding viewing position adjustment information capable of causing the left eye and the right eye of the secondary viewer to respectively view the 3D left eye visible view and the 3D right eye visible view according to the eye position information of the secondary viewer;

   The viewing position adjustment information is output.
5. The control method according to claim 4, wherein said viewing position adjustment information is: enabling a left viewer and a right eye of the secondary viewer to respectively see a minimum of the 3D left eye visible view and the 3D right eye visible view Position adjustment distance.
6. The control method according to any one of claims 1 to 5, further comprising:

   Raising the brightness of the backlight portion corresponding to the 3D left-eye view and the 3D right-eye view to the first brightness setting;

   Turning off the backlight portion corresponding to the view other than the 3D left-eye view and the 3D right-eye view, or corresponding to the view other than the 3D left-eye view and the 3D right-eye view The brightness of the backlight portion is lowered to a second brightness setting value, and the second brightness setting value is smaller than the first brightness setting value.
7. A naked eye 3D display control device includes:

   a determination module for determining a 3D left eye view and a 3D right eye view;

   A display control module is configured to display the sub-pixel view of the display module in addition to the 3D left-eye view and the 3D right-eye view as black.
8. The control device according to claim 7, wherein the determining module is configured to determine a primary viewer closest to a center position of the screen according to the eye position information of the at least one viewer detected by the human eye sensing module; The viewer's eye position information determines a 3D left eye view and a 3D right eye view.
9. The control device of claim 8 further comprising:

   The grating adjustment module is configured to adjust a grating position of the liquid crystal grating module according to the eye position information of the main viewer.
10. The control device according to claim 8 or 9, further comprising:

    a calculation module, configured to: when each viewer has at least two people, obtain a corresponding left eye of the secondary viewer according to the secondary viewer's eye position information for removing each secondary viewer other than the primary viewer And the right eye respectively see the viewing position adjustment information of the 3D left eye visible view and the 3D right eye visible view;

    And an output module, configured to output the viewing position adjustment information.
11. A control device according to any one of claims 7 to 10, wherein

    The display control module is further configured to increase a brightness of a backlight portion corresponding to the 3D left-eye visible view and the 3D right-eye visible view to a first brightness setting value;

    Turning off the backlight portion corresponding to the view other than the 3D left-eye view and the 3D right-eye view, or corresponding to the view other than the 3D left-eye view and the 3D right-eye view The brightness of the backlight portion is lowered to a second brightness setting value, and the second brightness setting value is smaller than the first brightness setting value.
12. A naked eye 3D display control system comprising:

    a display module for displaying a left eye view and a right eye view;

    a liquid crystal grating module located on the front side of the display module;

    The control module is respectively connected with the display module and the liquid crystal grating module for determining the 3D left-eye visible view and the 3D right-eye visible view; the display module is divided into the 3D left-eye visible view and the 3D right-eye visible view. The subpixel view is shown in black.
13. The control system according to claim 12, wherein

    The control system further includes a human eye sensing module for detecting human eye position information;

    The control module is coupled to the human eye sensing module for determining a primary viewer that is closest to a center position of the screen according to the eye position information of the at least one viewer detected by the human eye sensing module; according to the primary viewer The eye position information determines a 3D left eye view and a 3D right eye view.
14. The control system of claim 13 wherein said control module is further operative to adjust a raster position of the liquid crystal grating module based on the eye position information of the primary viewer.
15. A control system according to claim 13 or 14, wherein

    The control module is further configured to: when each viewer is at least two, obtain a corresponding secondary viewer according to the secondary viewer's eye position information for removing each secondary viewer other than the primary viewer The left eye and the right eye respectively see viewing position adjustment information of the 3D left eye visible view and the 3D right eye visible view; and output the viewing position adjustment information.
16. The control system according to claim 12, wherein

    The display module is a liquid crystal display module, including a liquid crystal panel and a direct type backlight located on a back side of the liquid crystal panel;

    The control module is connected to the liquid crystal panel and the direct-type backlight signal, and is further configured to increase the brightness of the backlight portion corresponding to the 3D left-eye view and the 3D right-eye view to the first brightness setting. Setting; and turning off the backlight portion corresponding to the view other than the 3D left-eye view and the 3D right-eye view, or the view other than the 3D left-eye view and the 3D right-eye view The brightness of the corresponding backlight portion is lowered to a second brightness setting value, and the second brightness setting value is smaller than the first brightness setting value.
17. A control system according to any of claims 12-15, wherein

    The sub-pixel units of the display module are arranged according to a five-view two-ninth method; the grating tilt angle of the liquid crystal grating module is 77.47 degrees or 102.53 degrees.

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