DE102010060210B3 - Method for generating three-dimensional images by using display and pair of glasses, involves displaying visual information in adjacent display areas in sequential manner - Google Patents

Abstract

The method involves viewing image information in a display area (11 to 16) on a display (1). The transmission ranges (31 to 36,41 to 46) of a lens (6,7) associated with the display area of the display is transparently switched. The visual information in adjacent display areas is sequentially displayed. Independent claims are also included for the following: (1) a pair of glasses; and (2) a display for displaying image information.

Description

The invention relates to a method for generating three-dimensional images according to the preamble of claim 1, a pair of spectacles according to the preamble of claim 6 and a display for displaying image information according to the preamble of claim 7.

The patent DE 43 31 715 A1 describes a pair of glasses whose spectacle lenses can be alternately switched dark. The lenses include individually controllable liquid crystal panels.

From the prior art, therefore, a method for generating three-dimensional images is known, which uses glasses with spectacle lenses whose transparency is independently controllable (so-called shutter glasses). In this method, first, image information for a first eye is displayed on a display and the corresponding spectacle lens is switched transparent in a first step. Thereafter, in a second step, image information for a second eye is displayed and the other spectacle lens is switched transparent. As a result, different image information is perceived by both eyes and for a viewer, the impression of a three-dimensional image is created. To display the individual image information matrix displays are usually used, such as liquid crystal displays (LCD displays). The image information of these matrix displays is changed by line-by-line addressing of the individual lines of the matrix display (so-called through-addressing). Accordingly, after displaying the image information for a right eye, line-by-line construction of the image information for a left eye occurs within a certain time window. As a result, the display includes at certain times both image information intended for the right eye and image information intended for the left eye. It happens that the image information actually intended for the right eye is perceived by the left eye and vice versa (so-called crosstalk). In the prior art, this problem is solved in that a dark image is switched between the image information for one eye and the image information for the other eye (so-called black field insertion). However, this creates the problem, especially with low-clocked displays, that the display begins to flicker and the picture quality deteriorates.

From the US 5,841,507 A An apparatus and method for reducing light intensity is known. This is a pair of sunglasses, in the glasses of a matrix arrangement, which is each individually translucent or opaque controllable, is arranged. By means of a light sensor arranged on the spectacle lens, incident light is detected and dependent thereon signals are generated which control the individual elements of the matrix in a transparent or opaque manner.

From the DE 10 2005 029 431 A1 a lighting device is known, which has a plurality of main illumination areas, which are subdivided into at least a first and a second partial illumination area, wherein at each partial illumination area a luminous element for emitting light beams is arranged and wherein each main illumination area is associated with a light beam deflection device, which is designed to to divert the light beams outputted from the luminous element of the first partial illumination area in a direction other than the light beams output from the luminous element of the second partial illumination area. The main illumination areas are equipped in the emission direction with strip-shaped OLEDs, which allow a light transmission. The strip-shaped OLEDs are arranged vertically.

It is the object underlying the invention to improve the method presented above, to prevent flickering of the display and to avoid crosstalk between the two image channels.

This problem is solved by a method for generating three-dimensional images having a display with a plurality of display areas and a pair of spectacles having right and left spectacle lenses each having a plurality of transmission areas whose transparency is independently controllable, with the steps of displaying image information in one Display area on the display and a transparent switching of the display area of the display associated transmission range of a spectacle lens solved.

The advantages achieved by the invention are, in particular, that in the method only those display areas of a through-addressable display are displayed to a user who has image information for a single eye. Therefore, especially in the case of through-addressable display devices, crosstalk between the right-eye channel and the left-eye channel can be prevented. Furthermore, there is the advantage that through the transparent switching of individual transmission regions of the respective spectacle lens those display areas can be hidden from a field of view of the observer, which are responsible for crosstalk of the image channels.

An advantageous embodiment of the invention comprises a method with the steps of a successive display of image information in adjacent display areas of the display and a successive transparent switching of associated, adjacent transmission areas of a spectacle lens.

The advantages achieved thereby are that a circuit of the display areas can be simplified and display areas can be hidden particularly effectively from a field of view of the viewer, which are responsible for a crosstalk of the image channels.

An advantageous embodiment of the invention comprises a method comprising the steps of displaying right-eye image information in a display area of the display and transparent switching the associated transmission area of the right-hand lens and displaying left-eye image information in a display area of the display and a transparent switch the associated transmission range of the left lens.

The advantages achieved thereby are that thereby a particularly pronounced three-dimensional effect can be achieved.

An advantageous embodiment of the invention comprises a method comprising the steps of successively displaying image information in adjoining display regions of the right-eye display and successively transparent switching of the assigned transmission region of the right-hand lens and sequentially displaying image information in adjoining display regions Display for the left eye and a successive transparent switching of the assigned transmission range of the left lens.

The advantages achieved thereby are that the method for producing three-dimensional images and the image quality can be further improved.

An advantageous embodiment of the invention comprises a method with the steps of alternating, successive display of image information for the right eye and the left eye and an alternating, successive transparent switching of transmission regions of a right and a left spectacle lens.

The advantages achieved thereby are that a control of a display is facilitated and a good three-dimensional effect is achieved.

Furthermore, the problem on which the invention is based is solved by spectacles having two spectacle lenses, each spectacle lens comprising a plurality of transmission regions whose transparency can be controlled independently of one another.

The advantages achieved by the glasses are that a flicker-free three-dimensional image can be generated on the display for a user.

An advantageous embodiment of the invention comprises spectacles, wherein the spectacle lens is divided horizontally into transmission areas.

The advantages achieved thereby are that the three-dimensional effect due to the horizontal alignment of the transmission regions can be used particularly well for the generation of three-dimensional images and corresponds to the alignment of the line control of commercially available displays.

A further advantageous embodiment of the invention comprises a pair of spectacles, wherein the spectacle lens is divided vertically into transmission areas.

The advantages thereby achieved are to provide an alternative way for the method that can be used when using column addressable displays.

A further advantageous embodiment of the invention comprises a pair of spectacles, wherein the spectacle lens is subdivided into transmission regions in matrix form.

The advantages achieved thereby are that the use and possibilities of use of the glasses are increased, so that they can be used in a flexible manner in combination with a display.

Further, the problem underlying the invention is solved by a display for displaying image information, comprising a liquid crystal matrix for displaying the image information and a backlight having a plurality of illumination areas for illuminating the liquid crystal matrix, the illumination areas being independently switchable.

The advantages of the display are that it can be easily made by customizing traditional displays.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

1 a display according to the invention and a pair of spectacles in a first step of the method according to the invention,

2 the display and the glasses in a second step,

3 the display and the glasses in a third step,

4 the display and the glasses in a fourth step,

5 the display and the glasses in a fifth step,

6 the display and the glasses in a sixth step,

7 the display and the glasses in a seventh step,

8th the display and the glasses in an eighth step,

9 the display and the glasses in a ninth step,

10 the display and the glasses in a tenth step,

11 the display and the glasses in an eleventh step,

12 the display and the glasses in a twelfth step,

13 the display according to the invention and the spectacles in an alternative method in a first method step,

14 the display and the glasses in a second step,

15 the display and the glasses in a third step,

16 the display and the glasses in a fourth step,

17 the display and the glasses in a fifth step, and

18 the display and the glasses in a sixth step.

There follows the explanation of the invention with reference to the drawings according to the structure and possibly also after the operation of the illustrated invention.

1 shows the display according to the invention 1 with a liquid crystal matrix 2 and a backlight 3 in a first process step.

The liquid crystal matrix 2 is through individual areas 21 - 26 a backlight 3 horizontally in several display areas 11 - 16 divided. Behind the liquid crystal matrix 2 is the backlight 3 which also horizontally in several lighting areas 21 - 26 is divided. The lighting areas 21 - 26 are individually controllable and activatable independently by a suitable circuit. In 1 is for example the lighting area 21 enabled, so that essentially the display area 11 the liquid crystal matrix 2 is illuminated. The other lighting areas 22 - 26 the backlight 3 are switched dark, so the display areas 12 - 16 the liquid crystal matrix 2 not be screened, although these areas in principle also contain image information.

The ad areas 11 - 16 have in different process steps on image information, which is intended for a particular eye. In 1 include the display areas 11 - 15 Image information for a left eye expressed by the letter L, whereas the display area 16 Image information for a right eye, expressed by the letter R.

The liquid crystal matrix 2 is addressed line by line such that the on the liquid crystal matrix 2 arranged image information is changed line by line and sequentially. Accordingly, the boundary between the image information intended for the right eye and the image information intended for the left eye shifts continuously. This limit will be in 1 through the border between the display area 15 and the display area 16 educated.

Although the liquid crystal matrix in all display areas 11 - 16 However, this is because of the activated area 21 the backlight 3 essentially only in the display area 21 the total display 1 visible, noticeable.

Using a backlight subdivided into lighting areas has the advantage that any commercially available liquid crystal matrix can be used. However, the method can also be used on other suitable display devices. For example, it is possible to provide a projection device, for example a beamer, with a diaphragm with individually controllable transmission ranges. A use of the method in combination with a plasma display, a display with organic light-emitting diodes (OLED) is also possible.

In addition, the shows 1 glasses 5 with a left lens 6 and a right-hand lens 7 , The left lens 6 includes several transmission areas 31 - 36 which can be switched independently of each other. In the case of transparent shading, the transmission of a corresponding area changes from an opaque state to a transparent, translucent state, so that a viewer can see the display 1 can recognize through this transmission range. In 1 is for example the transmission range 31 of the left lens 6 switched transparent, so that light rays can penetrate through this area. The other transmission ranges 32 - 36 of the left lens 6 are intransparent, so that no light can pass through them. Just like the left lens 6 includes the right lens 7 also several transmission areas 41 - 46 , These are in an opaque state. Any suitable electronic circuit may be used to control the individual transmission ranges and their states.

The glasses 5 and the ad 1 can be coupled together via a cable or radio link, so that a synchronous circuit of the display areas 11 - 16 the ad 1 and the transmission ranges 31 - 36 and 41 - 46 the glasses 5 can be done. As a radio connection is any suitable radio link into consideration, by the synchronization between glasses 5 and display 1 can be made, for example, a Bluetooth connection. Alternatively, however, an infrared connection can also be used for this purpose.

The individual transmission areas 31 - 36 and 41 - 46 the glasses 5 For example, they may be formed by polarizers through which light can pass upon application of a particular voltage, such as liquid crystal apertures. However, all known devices and means by which the transparency state of the single transmission region can be changed are considered for the formation of transmission regions.

2 shows the ad 1 with the glasses 5 in a second process step.

In this process step, image information for the left eye is displayed in the adjacent display area 12 displayed. The display areas 11 and 13 - 16 also comprise image information for the left eye but are from the deactivated lighting areas 21 and 23 - 26 not examined.

Opposite the in 1 shown display 1 In the second method step, the boundary of the image information for the right eye and the left eye has now shifted completely downwards, so that the display area 16 in this method step also comprises image information intended for the left eye.

In this second method step is the associated, adjacent transmission area 32 of the left lens 6 switched transparent while the transmission areas 31 . 33 - 36 and 41 - 46 are switched intransparent.

In particular, the display areas 11 - 16 in the process of such a transmission region 31 - 36 and 41 - 46 the glasses 5 assigned to a display area at the top of the display 1 a transmission area in the upper region of a spectacle lens 6 or 7 equivalent.

3 shows the ad 1 and the glasses 5 in a third process step.

In this process step is the illumination area 23 the backlight 3 enabled so that the image information is essentially in the adjacent display area 13 appears. Further, due to the readdressing of the liquid crystal matrix 2 the darkened display area 11 already image information intended for the right eye. In this process step is the transmission area 33 of the left lens 6 transparent switched.

The 4 to 6 show the subsequent, corresponding process steps 4 - 6 ,

7 shows the ad 1 and the glasses 5 in a seventh process step.

In this process step, the display area 11 illuminated, which now has image information for the right eye. Accordingly, the assigned transmission range becomes 41 of the right spectacle lens 7 transparent switched.

Incidentally, this is in the 1 to 6 described method is now repeated for the right eye with corresponding image information. The further process steps 8th - 12 are in the 8th to 12 shown. After the twelfth process step, the process is continued again with the first process step.

In the illustrated method, the advantage arises that due to the fact that in each case only image information for an eye on the display 1 is shown, the picture channels for both eyes better can be separated and crosstalk is reduced. It also avoids flickering the display and improves picture quality.

The 13 - 18 show the steps 1 - 6 a further embodiment of the method according to the invention.

In this embodiment, two transmission regions of the spectacles each become in each step 5 transparent switched. The show 13 - 18 as an example, the first six procedural steps for the left eye. The subsequent next six process steps for the right eye result in a corresponding manner by switching the transmission ranges 41 - 46 for the right eye. Thereafter, the process is repeated.

The method according to the invention is not limited to the display in six different display areas nor to the use of six transmission areas for each spectacle lens.

For example, displays may be used, each comprising only an upper and a lower display area. Accordingly, glasses can also be used, the lenses are each divided into an upper and a lower transmission range.

In contrast, however, it is also possible to provide the display with a higher number of display areas and the lenses each having a higher number of transmission areas than described above. The number of display areas does not have to correspond to the number of transmission areas of a spectacle lens. For example, it is possible to provide the display with only two display areas, whereas each spectacle lens is provided with a larger number of, for example, eight transmission areas.

It will be understood that the field of view created by transparent switching of a transmission area for a user does not fully correspond to the associated display area of the display.

Next, the glasses 5 Devices include the angle of inclination of the glasses 5 with respect to a horizontal plane, such as tilt sensors or tilt sensors. These inclination angle detecting devices may be disposed in the glasses so as to detect an inclination with respect to the viewing direction, for example when lowering the head, and / or a lateral inclination, for example, when tilting the head of an observer sideways. A first inclination angle sensor for detecting a tilt in the viewing direction, for example, in a bracket of the glasses 5 may be arranged and a second inclination angle sensor for detecting a lateral inclination between the two glasses 5 and 6 in the frame of the glasses 5 be arranged.

The control of a transparent switching of the transmission ranges 31 - 36 and 41 - 46 can take place in dependence on a detected angle of inclination, so that an adaptive assignment of the transmission ranges to the display ranges can be achieved. For example, if the head of the observer tilts forward, the transmission areas 31 - 36 and 41 - 46 Switched earlier than with a completely horizontal alignment of the glasses. With a tilt of the head to the rear, the transmission ranges 31 - 36 and 41 - 46 be switched later than in a completely horizontal alignment of the glasses.

Similarly, with a lateral inclination of the head, the transmission areas for the left eye 31 - 36 and the right eye 41 - 46 be switched differently. In this case, the circuit of the transmission areas 31 - 36 and 41 - 46 done in such a way that by the inclination of the glasses 5 caused disturbance is dynamically compensated. When using a spectacle lens which is subdivided into transmission regions in the form of a matrix, the switching of the transmission regions can take place in such a way that the lateral alignment of the transmission regions is maintained if the spectacles are tilted laterally. For this purpose, suitable electronic circuits can be provided in the spectacles, which calculate the corresponding activation of the transmission ranges from the detected angle of inclination of the spectacles.

Nevertheless, the method according to the invention avoids flickering or flickering of the display, while crosstalk between the left eye channel and the right eye channel can be eliminated.

LIST OF REFERENCE NUMBERS

1

display

2

liquid crystal matrix

3

Backlight

4

5

glasses

6

lens

7

lens

8th

9

10

11-16

display area

21-26

lighting area

31-36

transmission range

41-46

transmission range

Claims (7)

Method for generating three-dimensional images with a display ( 1 ) with multiple ad areas ( 11 - 16 ) and a pair of glasses ( 5 ) with a right and a left lens ( 6 . 7 ), each having a plurality of transmission regions ( 31 - 36 . 41 - 46 ) whose transparency can be controlled independently of each other, comprising the steps of: displaying image information in a display area ( 11 - 16 ) on the display ( 1 ); - transparent switching of the display area ( 11 - 16 ) of the ad ( 1 ) associated transmission range ( 31 - 36 . 41 - 46 ) of a spectacle lens ( 6 . 7 ). Method according to claim 1, comprising the steps of: displaying consecutive image information in adjoining display regions ( 11 - 16 ) of the ad ( 1 ) and - successive transparent switching of associated, adjacent transmission areas ( 31 - 36 . 41 - 46 ) of a spectacle lens ( 5 . 6 ). Method according to one of the preceding claims, comprising the steps of: displaying right-eye image information in a display area ( 11 - 16 ) of the ad ( 1 ) and transparent switching of the assigned transmission range ( 41 - 46 ) of the right spectacle lens ( 7 ), and - displaying image information for the left eye in a display area ( 11 - 16 ) of the ad ( 1 ) and transparent switching of the assigned transmission range ( 31 - 36 ) of the left lens ( 6 ). Method according to one of the preceding claims, comprising the steps of: successively displaying image information in adjoining display regions ( 11 - 16 ) of the ad ( 1 ) for the right eye and successive transparent switching of the assigned transmission ranges ( 41 - 46 ) of the right spectacle lens ( 7 ), - successive display of image information in adjoining display areas ( 11 - 16 ) of the ad ( 1 ) for the left eye and successive transparency of the assigned transmission areas ( 31 - 36 ) of the left lens ( 6 ). The method of claim 4, wherein The steps of successively displaying image information take place alternately for the right and the left eye. Glasses ( 5 ) with two spectacle lenses ( 6 . 7 ), whereby - each spectacle lens ( 6 . 7 ) several transmission areas ( 31 - 36 . 41 - 46 ) whose transparency is independently controllable; - the spectacle lens ( 6 . 7 ) horizontally in transmission areas ( 31 - 36 . 41 - 46 ) or - the spectacle lens ( 6 . 7 ) is subdivided into transmission regions in matrix form; and - a device for detecting a tilt angle of the spectacles, and - a device for adaptively controlling the transparent switching of the transmission regions ( 31 - 36 . 41 - 46 ) is present depending on the detected inclination angle. Display ( 1 ) for displaying image information with: - a liquid crystal matrix ( 2 ) for displaying the image information and - a backlight ( 3 ) with several lighting areas ( 21 - 26 ) for illuminating the liquid crystal matrix ( 2 ), where - the lighting areas ( 21 - 26 ) are independently switchable, characterized in that - the plurality of illumination areas ( 21 - 26 ) are subdivided horizontally and - the liquid crystal matrix ( 2 ) into several corresponding horizontal display areas ( 11 - 16 ) is divided to display the image information.

Images