TWI450575B - Three-dimensional stereo displaying apparatus and three-dimensional stereo viewing glasses - Google Patents

Description

Three-dimensional display device and three-dimensional stereoscopic glasses

The present invention relates to a three-dimensional stereoscopic display device and three-dimensional stereoscopic viewing glasses, and more particularly to a three-dimensional stereoscopic display device and three-dimensional stereoscopic viewing glasses that can be used to hide part or all of the original image.

With the advancement of technology, 3D stereoscopic images are the latest development trend after high definition (HD) images. With the rapid rise of the three-dimensional display related industry, the future three-dimensional stereoscopic video and three-dimensional stereoscopic display will probably be popularized in everyone's home, and even the display screen of the mobile phone or game machine can be presented in a three-dimensional manner.

The three-dimensional image contains images that are respectively provided to the left and right eyes of the human being. The left and right eye images have a parallax when presented on the retina of the two eyes, and are transmitted from the cerebral cortex to the cerebral cortex. The hub merges it into a single object with layers and depth of field, which in turn creates a sense of three-dimensionality.

However, due to the consideration of health factors, it is generally recommended that the viewing time of the user viewing the three-dimensional stereoscopic image is about two hours. If the user does not view the three-dimensional stereoscopic image or does not adapt to the display of the three-dimensional stereoscopic image, the three-dimensional stereoscopic related device will lack uniqueness.

In view of the above, the present invention provides a three-dimensional stereoscopic display device that allows a user to increase the usage context of a three-dimensional stereoscopic display device by changing the display mode of the left and right eye images.

The present invention provides a three-dimensional stereoscopic viewing glasses, by which the image displayed by some or all of the three-dimensional stereoscopic display devices can be hidden by the polarization directions of the left and right eyeglass lenses.

The invention provides a three-dimensional stereoscopic display device comprising a processor and a display. The processor generates an encoded picture according to the original picture. The display is coupled to the processor to interleave the original picture and the encoded picture to hide part or all of the original picture.

In an embodiment of the invention, the encoded picture comprises a predetermined pattern.

In an embodiment of the invention, the predetermined pattern comprises a mosaic pattern or a checkerboard pattern.

In an embodiment of the invention, the size and position of the predetermined pattern correspond to a designated area of the original picture.

In an embodiment of the invention, one or more of the pixels of the encoded picture are complementary colors of corresponding pixels of the original picture.

In an embodiment of the invention, the display displays the original picture and the coded picture in a staggered manner according to the spatial position, and the polarization direction of the original picture and the polarization direction of the coded picture are orthogonal.

In one embodiment of the invention, the display displays the original picture using odd scan lines and displays the coded picture using even scan lines.

In one embodiment of the invention, the display displays the original picture using even scan lines and displays the encoded picture using odd scan lines.

In an embodiment of the invention, the display displays the original picture and the coded picture in a time sequence, and the polarization direction of the original picture is the same as the polarization direction of the coded picture.

In an embodiment of the invention, the three-dimensional display device further includes a transmitter. The transmitter is coupled to the processor and transmits the first synchronization signal and the second synchronization signal, wherein the first synchronization signal and the second synchronization signal are enabled when the original image is displayed on the display, and are disabled when the display displays the encoded image. status.

The present invention also provides a three-dimensional stereoscopic viewing glasses for viewing a display screen of a three-dimensional stereoscopic display device, including a first lens and a second lens. The three-dimensional display device alternately displays the original image and the encoded image. The polarization directions of the first lens and the second lens are the same as the polarization direction of the original image, and the polarization directions of the first lens and the second lens are orthogonal to the coded image. Polarized direction.

In an embodiment of the invention, the three-dimensional stereoscopic glasses further include a receiver for receiving the first synchronization signal and the second synchronization signal. The polarization direction of the first lens is the same as the display screen of the three-dimensional display device when the first synchronization signal is enabled, and is orthogonal to the polarization direction of the display screen of the three-dimensional display device when the first synchronization signal is disabled. . The polarization direction of the second lens is the same as the display screen of the three-dimensional display device when the second synchronization signal is in an enabled state, and the polarization direction of the display screen of the three-dimensional display device when the second synchronization signal is in the disabled state. Orthogonal.

Based on the above, the three-dimensional stereoscopic display device and the three-dimensional stereoscopic viewing glasses provided by the present invention allow the user to increase the use situation of the three-dimensional stereoscopic display device in addition to viewing the three-dimensional stereoscopic image and display settings of the general two-dimensional image. This enhances the uniqueness and value of three-dimensional display related devices.

The above described features and advantages of the present invention will be more apparent from the following description.

FIG. 1 is a block diagram of a three-dimensional stereoscopic display device according to an embodiment of the invention. Referring to FIG. 1 , the three-dimensional stereoscopic display device 100 can be a three-dimensional stereoscopic television with linearly polarized light, a three-dimensional projector such as an organic light emitting diode (OLED) projector with added polarizer or digital optical processing (Digital Light Processing, DLP) projectors, etc. The three-dimensional stereoscopic display device 100 includes a processor 110 and a display 120. The function is described as follows: The processor 110 can be implemented by software, hardware or a combination thereof, and is not limited herein. The software is, for example, an application software, a driver, or a code command. The hardware is, for example, a central processing unit (CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), digital signal processor (DSP), and the like. The processor 110 can generate an encoded picture according to an original picture. In an embodiment, the coded picture includes a preset pattern such as a mosaic pattern or a checkerboard pattern, wherein the size and position of the preset pattern correspond to a designated area of the original picture, and the designated area may be preset by the processor 110. In another embodiment, some or all of the pixels of the encoded picture may be complementary colors of corresponding pixels in the original picture.

The display 120 is, for example, a liquid crystal display (LCD), a Light-Emitting Diode (LED) display, a Field Emission Display (FED), or other kinds of displays or display screens. For example, when the three-dimensional stereoscopic display device 100 is a three-dimensional stereoscopic liquid crystal television, the display 120 is a liquid crystal display, and when the three-dimensional stereoscopic display device 100 is a three-dimensional projector, the display 120 is a display screen projected by the three-dimensional projector.

The display 120 is coupled to the processor 110 for interleaving the original picture and the encoded picture generated by the processor 110 to hide part or all of the original picture. The display 120 can display the original picture and the coded picture by using the spatial position, or alternately display the original picture and the coded picture according to the time sequence.

As shown in FIG. 2, FIG. 2 is a schematic diagram showing an interlaced display screen according to spatial positions. Referring to FIG. 1 and FIG. 2 at the same time, in general, the display 120 cuts the display screen into a left-eye picture L1 and a right-eye picture R1, and the left-eye picture L1 is received through the viewer's left eye, respectively. The eye screen R1 is received by the viewer's right eye, so that the left and right eye images having a certain parallax are fused by the viewer's brain to generate a three-dimensional feeling. In this embodiment, the display 120 can display the original picture using odd scan lines and display the coded picture using even scan lines, that is, the original picture is received via the right eye of the viewer, and the coded picture is received via the viewer's left eye; The display 120 can also display the original picture using even scan lines and display the coded picture using odd scan lines, that is, the original picture is received via the viewer's left eye, and the coded picture is received via the viewer's right eye. Both of the above methods are feasible and can be selected by the user. It should be noted that if the three-dimensional display device 100 is spatially interlaced, the polarization direction of the original picture displayed on the display 120 and the polarization direction of the coded picture are orthogonal.

FIG. 3 is a schematic diagram showing a staggered display of pictures according to chronological order. Referring to FIG. 1 and FIG. 3 simultaneously, the display 120 displays the left-eye picture L1 received by the viewer's left eye at the first sequence T1, and the second-time picture T2 displays the right-eye picture R1 received by the viewer's right eye, the third sequence. T3 displays the left eye picture L2 received by the viewer's left eye, the fourth time sequence T4 displays the right eye picture R2 received by the viewer's right eye, and so on. In this embodiment, the display 120 can place the original picture on the left eye picture and the code picture on the right eye picture; otherwise, the display 120 can place the original picture on the right eye picture and the code picture on the left eye picture. Can be selected by the user. If the three-dimensional display device 100 is time-staggered, the polarization direction of the original picture displayed on the display 120 is the same as the polarization direction of the coded picture.

Different embodiments will be described below to illustrate how the display 120 interleaves the original picture and the encoded picture to hide some or all of the original picture. 4 to FIG. 5 are schematic diagrams showing an original picture, an encoded picture, and an encrypted picture according to an embodiment of the invention. First, please refer to FIG. 1 and FIG. 4 simultaneously. FIG. 4(a) shows the original picture generated by the display 120. In the present embodiment, the original picture is taken as the left-eye picture L1 suitable for the left eye of the viewer. FIG. 4(b) is a coded picture generated by the display 120. In this embodiment, the coded picture is a preset checkerboard pattern, and the size of the checkerboard pattern is the same as the size of the original picture, and the coded picture is suitable. The right eye picture R1 received by the viewer's right eye. When the difference between the left-eye image L1 and the right-eye image R1 received by the human eye is too large, the result of mixing the left-eye image L1 and the right-eye image R1 via the viewer's brain, the human eye will see a special confusing picture, as shown in FIG. 4 . (c), the confusing picture is completely different from the original picture, and the viewer cannot know the original picture, thereby achieving the encryption effect.

Referring to FIG. 1 and FIG. 5, FIG. 5(a) is an original picture generated by the display 120 as a left-eye picture L1 received by the human eye. FIG. 5(b) is a coded picture generated by the display 120. The pattern portion of the coded picture is the same as the original picture. A part of the area 510 is a checkerboard pattern, and the size of the checkerboard pattern is only a part of the original picture. In the area, this coded picture is taken as the right-eye picture R1 received by the human eye. Accordingly, the special obfuscated picture viewed by the human eye is as shown in FIG. 5(c), and the human eye cannot know the original picture in the area 520, and the encryption effect is generated on a specific area in the picture.

The three-dimensional stereoscopic display device achieves the encryption effect by interlacing the original image and the encoded image to hide part or all of the original image. However, if the confusing picture generated by the encryption is to be solved, the three-dimensional stereoscopic glasses are required to be worn. Therefore, the present invention also provides a corresponding three-dimensional stereoscopic viewing glasses for generating a decryption effect so that the user can view the complete original picture. . The following is a detailed description of another embodiment.

FIG. 6 is a block diagram of a three-dimensional display device according to another embodiment of the invention. Referring to FIG. 6 , the three-dimensional stereoscopic display device 600 includes a processor 610 , a display 620 , and a transmitter 630 . The processor 610 and the display 620 have the same or similar functions as the processor 110 and the display 120 shown in FIG. 1 , and thus are not described herein again. The transmitter 630 is coupled to the processor 610 for transmitting the first synchronization signal and the second synchronization signal, wherein the first synchronization signal and the second synchronization signal are both enabled when the display 620 displays the original picture, and the display is displayed on the display 620. The screen is disabled.

FIG. 7 is a schematic diagram of three-dimensional stereoscopic glasses according to another embodiment of the invention. Referring to FIG. 7 , the three-dimensional stereoscopic glasses 700 are, for example, polarized glasses or shutter glasses. The polarized glasses or shutter glasses of the prior art all use the selection of the polarization directions of the left and right glasses, so that the left and right glasses receive different left and right eye images respectively to form stereoscopic vision. In this embodiment, if the three-dimensional stereoscopic glasses 700 are shutter glasses, the left and right lenses of the shutter glasses are sequentially applied with voltage according to the synchronization signal to directly block the encoded image displayed by the three-dimensional display device 600, and only receive the three-dimensional display device. The original picture displayed by 600. If the three-dimensional stereoscopic glasses 700 are polarized glasses, the polarizing directions of the left and right glasses of the polarized glasses are the same as the polarized directions displayed on the original image.

The three-dimensional viewing glasses 700 include a first lens 710 and a second lens 720. The three-dimensional display device 600 (refer to FIG. 6 ) alternately displays the original image and the encoded image. The polarization directions of the first lens 710 and the second lens 720 are the same as the polarization direction of the original image, and the first lens 710 and the second lens are The polarization directions of 720 are both orthogonal to the polarization direction of the coded picture.

FIG. 8 is a schematic diagram of first and second synchronization signals according to another embodiment of the invention. In this embodiment, the three-dimensional stereoscopic display device 600 alternately displays the original image and the encoded image in time series, and the three-dimensional stereoscopic viewing glasses 700 are shutter glasses. Referring to FIG. 6 , FIG. 7 and FIG. 8 simultaneously, the first column 810 represents the time sequence in which the display 620 interleaves the original pictures L1 L L60 and the coded pictures R1 R R60 , and the second column 820 represents the first time emitted by the transmitter 630 . The sync signal, the third column 830 represents the second sync signal transmitted by the transmitter 630. The three-dimensional viewing glasses 700 further includes a receiver (not shown) for receiving the first synchronization signal and the second synchronization signal emitted by the transmitter 630. The polarization direction of the first lens 710 is the same as the display screen of the three-dimensional stereoscopic display device 600 when the first synchronization signal is in an enabled state (for example, may be a high potential), and is disabled in the first synchronization signal (for example, may be low potential) The time is orthogonal to the polarization direction of the display screen of the three-dimensional stereoscopic display device 600. The polarization direction of the second lens 720 is the same as the display screen of the three-dimensional display device 600 when the second synchronization signal is enabled, and the display screen of the three-dimensional display device 600 when the second synchronization signal is in the disabled state. The direction of polarization is orthogonal.

The first synchronization signal and the second synchronization signal received by the three-dimensional stereoscopic glasses are different from the synchronization signals of the conventional viewing stereoscopic image. As described above, the first synchronization signal and the second synchronization signal are both enabled when the display 620 displays the original picture, and are disabled when the display 620 displays the coded picture. Therefore, in the present embodiment, by the selection of the polarization direction and the application of the synchronization signal, the user wearing the three-dimensional stereoscopic glasses only views the original pictures L1 to L60, and does not receive the coded pictures R1 to R60. The original picture L1~L60 and the code picture R1~R60 cannot be mixed by the user's brain, and the special encrypted picture is not viewed, thereby achieving the decryption effect.

In another embodiment, if the display 620 spatially interleaves the original picture and the encoded picture (as shown in FIG. 2), the original picture displayed by the display 620 and the coded picture are orthogonal to each other. In this embodiment, the three-dimensional stereoscopic glasses 700 are polarized glasses, and the polarization directions of the first lens 710 and the second lens 720 are the same as the polarization direction of the original image, and the polarization directions of the first lens 710 and the second lens 720 are both It is orthogonal to the polarization direction of the coded picture. Therefore, the three-dimensional stereoscopic glasses 700 block the encoded picture displayed on the display 620 and receive only the original picture.

The three-dimensional display device and the viewing glasses described above allow a user who is not wearing the three-dimensional stereoscopic glasses to view the encrypted image through the special display and receiving mode, and the three-dimensional stereoscopic viewing glasses are worn. The user can correctly view the original picture displayed by the display device. In addition to the application of the encryption and decryption mechanism, the three-dimensional display device and the viewing glasses of the present invention can also be applied to Augmented Reality (AR), and the augmented reality is virtual reality (VR). ) A new interactive technology for departure. Through virtual reality devices, we can project objects or scenes that do not actually exist in the specified real space. The user can display or obtain information by augmenting the reality system. In the application of augmented reality, the original picture is a picture containing an augmented reality, and the coded picture is used to cover or hide additional information of the augmented reality, and the original picture and the coded picture can be worn without wearing the viewing glasses. The user's brain synthesis does not contain a general picture of the augmented reality.

In detail, the three-dimensional display device of the present invention can display a general screen for viewing by a user who does not wear three-dimensional stereoscopic glasses, and for a user wearing three-dimensional stereoscopic glasses, the original image received includes The screen plus additional information on augmented reality, this additional information is not visible to users who are not wearing glasses. For example, a user wearing glasses and a user who is not wearing glasses may see the same object, but the color may be different; or the user wearing the glasses may see the use of the glasses other than the glasses. In addition to the same objects, text messages or other patterns are added. As long as the original picture to be provided to the user wearing the viewing glasses is presented on one of the left eye picture or the right eye picture of the display, as described in the foregoing embodiment, the three-dimensional display device and the three-dimensional stereoscopic glasses are polarized. The choice of direction can be achieved.

Assuming that the original picture is presented on the left-eye picture, the right-eye picture presented by the display is the coded picture generated according to the original picture, and the coded picture can be designed by using a superimposed color system such as an RGB system to hide or complement the original picture. Picture. For example, if the general picture seen by the user who does not wear glasses is white, the original picture (the left eye picture presented by the display) seen by the user wearing the glasses is red, and the coded picture is (The right eye image presented by the display) can be designed as a red complementary cyan. Therefore, part or all of the pixels of the encoded picture can be subtracted from the RGB components of the corresponding pixels of the normal picture and the RGB components of the corresponding pixels of the original picture to hide additional information of the original picture.

In summary, the three-dimensional stereoscopic display device and the three-dimensional stereoscopic viewing glasses provided by the present invention can increase the use situation of the three-dimensional stereoscopic display device in addition to the three-dimensional stereoscopic image and the display setting of the general two-dimensional image. For example, the image displayed by some or all of the three-dimensional display device is hidden to achieve the anti-spying mechanism of the encryption and decryption, and the related application for augmenting the reality can be further used, thereby improving the uniqueness and value of the device related to the three-dimensional display.

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, 600. . . Three-dimensional display device

110, 610. . . processor

120, 620. . . monitor

510, 520. . . region

630. . . launcher

700. . . Three-dimensional viewing glasses

710. . . First lens

720. . . Second lens

L1~L60. . . Left eye picture

R1~R60. . . Right eye picture

810~830. . . First column to third column

FIG. 1 is a block diagram of a three-dimensional stereoscopic display device according to an embodiment of the invention.

FIG. 2 is a schematic diagram showing a staggered display screen according to a spatial position.

FIG. 3 is a schematic diagram showing a staggered display of pictures according to chronological order.

4 to FIG. 5 are schematic diagrams showing an original picture, an encoded picture, and an encrypted picture, (a) an original picture, (b) an encoded picture, and (c) an encrypted picture, according to an embodiment of the invention.

FIG. 6 is a block diagram of a three-dimensional display device according to another embodiment of the invention.

FIG. 7 is a schematic diagram of three-dimensional stereoscopic glasses according to another embodiment of the invention.

FIG. 8 is a schematic diagram of first and second synchronization signals according to another embodiment of the invention.

100. . . Three-dimensional display device

110. . . processor

120. . . monitor

Claims (14)

A three-dimensional display device includes: a processor that generates an encoded picture according to an original picture; and a display coupled to the processor to interleave the original picture and the encoded picture to hide part or all of the original picture. The three-dimensional display device of claim 1, wherein the coded picture comprises a predetermined pattern. The three-dimensional display device of claim 2, wherein the predetermined pattern comprises a mosaic pattern or a checkerboard pattern. The three-dimensional display device of claim 2, wherein the size and position of the preset pattern correspond to a designated area of the original picture. The three-dimensional display device of claim 1, wherein at least one pixel of the coded picture is a complementary color of a corresponding pixel of the original picture. The three-dimensional display device of claim 1, wherein the display alternately displays the original picture and the coded picture according to a spatial position, and the polarization direction of the original picture and the polarization direction of the coded picture are orthogonal. The three-dimensional display device of claim 6, wherein the display displays the original picture using odd scan lines and displays the coded picture using even scan lines. The three-dimensional display device of claim 6, wherein the display displays the original picture using even scan lines and displays the coded picture using odd scan lines. The three-dimensional display device of claim 1, wherein the display alternately displays the original picture and the coded picture in chronological order, and the polarization direction of the original picture is the same as the polarization direction of the coded picture. The three-dimensional display device of claim 9, further comprising: a transmitter coupled to the processor, transmitting a first synchronization signal and a second synchronization signal, wherein the first synchronization signal and the first The two synchronization signals are enabled when the display screen displays the original picture, and are disabled when the display screen displays the coded picture. A three-dimensional stereoscopic viewing glasses for viewing a display image of a three-dimensional display device, comprising: a first lens; and a second lens, wherein the three-dimensional stereoscopic display device alternately displays an original image and an encoded image, the first The polarization directions of the lens and the second lens are both the same as the polarization direction of the original image, and the polarization directions of the first lens and the second lens are both orthogonal to the polarization direction of the coded picture. The three-dimensional stereoscopic viewing glasses of claim 11, wherein the three-dimensional display device alternately displays the original image and the encoded image according to a spatial position, and the polarization direction of the original image and the polarization direction of the encoded image are positive. cross. The three-dimensional stereoscopic viewing glasses of claim 11, wherein the three-dimensional display device alternately displays the original image and the encoded image in time sequence, and the polarization direction of the original image is the same as the polarization direction of the encoded image. The three-dimensional stereoscopic display device of claim 13, wherein the three-dimensional display device transmits a first synchronization signal and a second synchronization signal; the first synchronization signal and the second synchronization signal are displayed on the display The original picture is in an enabled state, and is disabled in the display of the coded picture; the three-dimensional viewing glasses further includes a receiver for receiving the first synchronization signal and the second synchronization signal; The polarization direction of the lens is the same as the display screen of the three-dimensional display device when the first synchronization signal is in an enabled state, and the polarization direction of the display screen of the three-dimensional display device is positive when the first synchronization signal is in the disabled state. The polarization direction of the second lens is the same as the display screen of the three-dimensional display device when the second synchronization signal is enabled, and the display of the three-dimensional display device when the second synchronization signal is disabled. The polarization direction of the screen is orthogonal.