CN108718407B - Monitors, glasses and display systems - Google Patents

Abstract

The present invention relates to field of display technology, a kind of display, glasses and display system are provided.The display includes display panel and the light polarization modulator that display panel side is arranged in.Wherein, display panel includes multiple display pixels for showing the first anaglyph, and the first anaglyph can be used for 2D simultaneously and show and 3D display.Light polarization modulator includes multiple modulated pixels corresponding with multiple display pixels, and multiple modulated pixels are used to modulate the polarization direction for the light that multiple display pixels are issued, to generate the second anaglyph for being used for 3D display.The display can be compatible with 2D and 3D display, meet the viewing demand of different user, so that there is user bigger viewing to select freely.

Description

Monitors, glasses and display systems

technical field

The present invention relates to the field of display technology, in particular to a display, glasses and a display system.

Background technique

In recent years, 3D display technology has gradually matured. Compared with ordinary 2D display technology, 3D display technology can make the picture three-dimensional and realistic, and the image is no longer limited to the plane where the screen is located, as if it can go out of the screen, so that the audience has an immersive feeling. However, there are quite a few users who still want to watch traditional 2D images for various practical reasons. When the existing 3D display displays traditional 2D images, its display effect is poor or even cannot be displayed normally at all. Therefore, once the 2D display is replaced by a 3D display, the needs of these users will no longer be met, that is, there are relatively large Big limitations.

Contents of the invention

In view of this, embodiments of the present invention provide a display, glasses and a display system to solve the above technical problems.

Embodiments of the invention are achieved through the following technical solutions:

In a first aspect, an embodiment of the present invention provides a display, including:

A display panel, the display panel includes a plurality of display pixels, the plurality of display pixels are used to display the first parallax image, and the first parallax image is used for 2D display and 3D display;

A polarization modulator, the polarization modulator is arranged on one side of the display panel, the polarization modulator includes a plurality of modulation pixels corresponding to the plurality of display pixels, and the plurality of modulation pixels are used to modulate the polarization direction of light emitted by the plurality of display pixels, to generate a second parallax image for 3D display.

The display provided by the embodiment of the present invention displays the first parallax image on the display panel. When the first parallax image is observed by the naked eye, what is seen is a traditional 2D image to achieve a 2D display effect. When the first parallax image passes through a specific When the device, such as the glasses provided by the embodiment of the present invention, observes, the first parallax image and the second parallax image are seen by the two eyes respectively, thereby realizing a 3D display effect. Therefore, the display is compatible with 2D and 3D displays, meets the viewing needs of different users, and solves the display limitation problem of existing 3D displays.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the display panel includes a plurality of display units, and each display unit in the plurality of display units includes z display pixels;

The polarization modulator includes a plurality of modulation units corresponding to a plurality of display units, and each modulation unit in the plurality of modulation units includes z modulation pixels corresponding to z display pixels;

The z modulation pixels are used to modulate the polarization direction of the light emitted by the z display pixels, where z is an integer greater than or equal to 2.

When the pixels on an image are divided into multiple pixel units for display, as long as the sum of the pixel values in each pixel unit remains unchanged or approximately unchanged, and the pixel value of each pixel is properly adjusted inside the pixel unit, the The display of images is largely unaffected or only limitedly affected. Based on this principle, the display pixels on the display panel can be divided into multiple display units and modulated by the corresponding modulation units, so as to be compatible with 2D and 3D display while minimizing the impact on the user's viewing effect.

With reference to the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, the pixel values of the x display pixels among the z display pixels are the same as the pixel values of the corresponding positions in the first original parallax image The pixel values of the pixels are equal, and the pixel values of the y display pixels except the x display pixels among the z display pixels are all constant c, where x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, and c It is a positive integer less than or equal to 255;

The gray value m _n of the x modulation pixels corresponding to the x display pixels among the z modulation pixels satisfies:

The gray value m _n of y modulation pixels corresponding to y display pixels among z modulation pixels satisfies:

Wherein, a _n is the pixel value of the pixel corresponding to the display pixel position in the first original parallax image, b _n is the pixel value of the pixel corresponding to the display pixel position in the second original parallax image, and n is the serial number.

The first original parallax image and the second original parallax image above are two parallax images that are expected to be provided to users, but due to the limitation of the characteristics of the polarization modulator, the first original parallax image and the second original parallax image cannot be directly provided to The user, what the user finally sees is the first parallax image and the second parallax image. By setting the pixel values of the display panel and the grayscale values of the polarization modulator in the above manner, the display of the first parallax image can be made as close as possible to the first original parallax image and the second parallax image can be displayed while realizing the display function. The display effect is as close as possible to the second original parallax image, so as to improve the viewing experience of the user.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, c is equal to 255.

When c is set to 255, the total pixel values of the second parallax image and the second original parallax image in each display unit are the same, and the display effect is better. At the same time, since the brightness of the light modulated by the polarization modulator can only be kept constant or decreased, and cannot be increased, setting c to 255 can ensure that the polarization modulator has the largest adjustable range.

With reference to the second possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, y is less than or equal to x.

The y display pixels are all constant, which will objectively affect the display effect of the first parallax image. Set y to be smaller than x, so that the first parallax image retains as many pixel values of the pixels in the original first parallax image as possible , the display effect of the first parallax image can be improved.

In combination with the first aspect or any one of the first to fourth possible implementation manners of the first aspect, in the fifth possible implementation manner of the first aspect, the polarization modulator is a LCD panel.

A liquid crystal display panel is a common display device, which facilitates the implementation of the display provided by the present invention.

In any one possible implementation manner of the first to fourth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, a plurality of display units are periodically arranged on the display panel.

The display units are arranged periodically, which facilitates the manufacture of the display and also makes the display effect uniform.

In the second aspect, an embodiment of the present invention provides glasses, which are used in conjunction with the display provided in the first aspect or any possible implementation manner of the first aspect. one side, including:

frame;

The first lens is installed on the frame, and the first lens includes a polarizer capable of analyzing the light modulated by the polarization modulator.

The first lens is used to analyze the polarized light generated by the polarization modulator, so that the human eye behind the first lens can observe the second parallax image, and at the same time, the other human eye can observe the first parallax image with naked eyes, thus forming 3D vision, realize the 3D display function of the display.

With reference to the second aspect, in the first possible implementation manner of the second aspect, the glasses further include:

The second lens is installed on the frame.

The second lens has no polarization function and can realize the function of a common lens.

In a third aspect, an embodiment of the present invention provides a display system, including:

The display provided by the first aspect or any possible implementation manner of the first aspect;

The second aspect or any possible implementation manner of the second aspect provides the glasses, where the glasses are located on a side of the polarization modulator of the display that is away from the display panel of the display.

The display system is compatible with displaying 2D and 3D images. Users can view 2D images without glasses and 3D images when wearing glasses, so that users can freely choose according to their own needs to improve their viewing experience.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

FIG. 1 shows a schematic structural diagram of a display system provided by an embodiment of the present invention;

FIG. 2 shows a schematic structural diagram of a display provided by an embodiment of the present invention;

Fig. 3 shows a schematic structural diagram of glasses provided by an embodiment of the present invention;

FIG. 4(A) to FIG. 4(F) are schematic diagrams showing the display process of the display provided by the embodiment of the present invention.

In the figure: 1 - display system; 10 - display; 100 - display panel; 102 - display unit; 102a - display pixel; 110 - polarization modulator; 112 - modulation unit; 112a - modulation pixel; 20 - glasses; 200 - frame ; 210 - first lens; 220 - second lens.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or can be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

FIG. 1 shows a schematic structural diagram of a display system 1 provided by an embodiment of the present invention. Referring to FIG. 1 , a display system 1 provided by an embodiment of the present invention includes a display 10 and glasses 20 that can be used in conjunction with the display 10 . The glasses 20 can be worn on a user's head.

When viewing the display 10 with naked eyes, the user sees the first parallax image, that is, a traditional 2D image, which realizes the 2D display function of the display 10, as shown at position A in FIG. 1 . When the user watches the display 10 through the glasses 20, one eye sees the first parallax image, and the other eye sees the second parallax image. The first parallax image and the second parallax image are of the same scene. Two images of parallax, so that when the user sees the first parallax image and the second parallax image at the same time, stereoscopic vision will be generated, and the 3D display function of the display 10 will be realized, as shown in positions B and C in FIG. 1 , wherein, One of the positions B and C sees the first parallax image, and the other sees the second parallax image.

The specific structures of the display 10 and the glasses 20 are described below respectively. FIG. 2 shows a schematic structural diagram of a display 10 provided by an embodiment of the present invention. Referring to FIG. 1 and FIG. 2 together, the display 10 includes a display panel 100 and a polarization modulator 110 , wherein the polarization modulator 110 is disposed on a side of the display panel 100 close to the glasses 20 .

The display panel 100 includes a plurality of display pixels 102a for displaying the first parallax image. As mentioned above, the first parallax image can be used not only as an image displayed in 2D, but also as one of two parallax images displayed in 3D. The polarization modulator 110 includes a plurality of modulation pixels 112a corresponding to the plurality of display pixels 102a, and the plurality of modulation pixels 112a are used to modulate the polarization direction of the light emitted by the plurality of display pixels 102a, and the specific correspondence manner may be one-to-one correspondence. The modulation result of the polarization modulator 110 does not affect viewing with the naked eye, that is, when viewing with the naked eye, what is seen is still the first parallax image on the display panel 100 . However, when viewed through the polarizer that matches the polarization modulator 110, what you see is the second parallax image that is generated after the first parallax image is modulated. Wherein, matching means that the polarizer can match the polarization modulator 110. The modulated light is analyzed, and the polarizer can be installed on the glasses 20 provided by the embodiment of the present invention, and the glasses 20 will be described later. It can be seen that the picture displayed on the display 10 , whether it is a 2D picture or a 3D picture, is actually generated by the first parallax image on the display panel 100 .

In practice, the display panel 100 may be, but not limited to, a liquid crystal display panel, and the polarization modulator 110 may be, but not limited to, a liquid crystal display panel with an analyzer removed. A liquid crystal display panel is a common display device, which facilitates the implementation of the display 10 provided by the present invention. At the same time, there are a large number of 2D displays 10 using liquid crystal display panels at present. The display 10 provided by the present invention can be manufactured on the basis of it, and can make ordinary 2D displays also have 3D display at a relatively small cost. Display function.

According to the above description, it can be seen that the second parallax image is modulated by the polarization modulator 110 on the basis of the first parallax image. According to the characteristics of the polarization modulator 110, after the modulated light is analyzed, its brightness can only remain unchanged or decrease compared with the light before modulation, but cannot increase, that is, a certain value in the second parallax image Compared with the pixel at the corresponding position in the first parallax image, the pixel value of the pixel at the position can only remain unchanged or decrease, but not increase, which will affect the display effect of the second parallax image to a certain extent.

The inventor has found through long-term research that when the pixels on an image are divided into multiple pixel units for display (each pixel unit includes several pixels), as long as the sum of the pixel values in each pixel unit is not changed or approximately If the pixel value of each pixel is properly adjusted inside the pixel unit, the display effect of the image is basically not affected or only limitedly affected. Based on this principle, in some implementations of the embodiments of the present invention, the display pixels 102a on the display panel 100 can be divided into display units 102 for display, and the pixel values of the display pixels 102a are properly adjusted inside the display unit 102, and Modulation is performed by the corresponding modulation unit 112 to improve the display effect of the second parallax image.

Specifically, the display panel 100 is provided with a plurality of display units 102 , and each display unit 102 includes a plurality of display pixels 102a, it may be assumed that there are z display pixels 102a, where z is an integer greater than or equal to 2. Correspondingly, the polarization modulator 110 is provided with a plurality of modulation units 112 corresponding to the plurality of display units 102, and each modulation unit 112 includes z modulation pixels 112a. In a common implementation manner, the display units 102 are arranged periodically on the display panel 100 , which facilitates the manufacture of the display panel 100 and also makes the displayed picture more uniform. Similarly, in common implementations, the modulation units 112 are arranged periodically on the polarization modulator 110 .

For ease of illustration, the concepts of the first original parallax image and the second original parallax image are introduced. The first original parallax image and the second original parallax image are two parallax images that the display 10 wishes to provide for the user to watch. And the second original parallax image is provided for the user to watch, what the user finally watches is the first parallax image corresponding to the first original parallax image and the second parallax image corresponding to the second original parallax image. In an implementation manner of the embodiment of the present invention, by properly setting the pixel value of the display pixel 102a and the gray value of the corresponding modulation pixel 112a, the overall display effect of the first parallax image and the second parallax image can be close to Based on the overall display effect of the first original parallax image and the second original parallax image, the user can obtain a better 3D viewing experience, and at the same time, it does not affect or only slightly affects the user's 2D viewing experience.

In this embodiment, for each display unit 102, the pixel values of the x display pixels 102a among the z display pixels 102a are set to be equal to the pixel values of the corresponding pixels in the first original parallax image, and the z display pixels 102a The pixel values of y display pixels 102a except x display pixels 102a among the pixels 102a are all set to a constant c. Wherein, x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, and c is a positive integer less than or equal to 255. The pixel value of the display pixel 102a is also the pixel value of the first parallax image observed by naked eyes.

For each modulation unit 112, the grayscale values m _n of the x modulation pixels 112a corresponding to the x display pixels 102a among the z modulation pixels 112a satisfy:

The gray value m _n of y modulation pixels 112a corresponding to y display pixels 102a among the z modulation pixels 112a satisfies:

Wherein, a _n is the pixel value of the pixel corresponding to the position of the display pixel 102a in the first original parallax image, b _n is the pixel value of the pixel corresponding to the position of the display pixel 102a in the second original parallax image, and n is the serial number. It should be pointed out that the value ranges of the pixel values and grayscale values involved in the embodiments of the present invention are all integers greater than or equal to 0 and less than or equal to 255, which is also a quantization standard commonly used in the display field at present.

For the case where the polarization modulator 110 uses a liquid crystal panel, according to the principle of liquid crystal display, the gray value of the modulated pixel 112a is proportional to the polarization angle of the modulated light. Therefore, the pixel value a of any display pixel 102a corresponding to each other, the grayscale value m of the modulation pixel 112a, and the pixel value d of the pixel of the second parallax image viewed through the polarizer satisfy the relationship d=a*m/255 . It is not difficult to see that since m is less than or equal to 255, d must be less than or equal to a.

Based on the above relationship, it can be obtained that the pixel values d _n of x pixels in the second parallax image corresponding to x display pixels 102a are:

The pixel values d _n of y pixels in the second parallax image corresponding to y display pixels 102a are:

It can be seen that in this embodiment, the z display pixels 102a in the display unit 102 are divided into two parts, the first part is x display pixels 102a, and the pixel values of the corresponding x pixels in the first original parallax image are reserved, and used The purpose is to display the first original parallax image as the first parallax image to the user as much as possible. The second part is y display pixels 102a, and the pixel values of the corresponding y pixels in the first original parallax image are replaced with constants, which objectively causes a difference between the first parallax image and the first original parallax image, That is, the display quality of the first parallax image is sacrificed to a certain extent, but since the constant itself does not have specific information, in practice this has little effect on the display quality of the first parallax image, and is usually acceptable to users.

According to the own characteristics of the polarization modulator 110, for x display pixels 102a, the brightness of x pixels in the corresponding second parallax image after modulation is less than or equal to the brightness of these x display pixels 102a, at this time, by The pixel values of y pixels in the second parallax image corresponding to y display pixels 102a are compensated, so that as far as one display unit 102 is concerned, the sum of the pixel values of z pixels in its corresponding second parallax image is equal to The sum of the pixel values corresponding to the z pixels of the display unit 102 in the second original parallax image is equal or approximately equal, that is, the total brightness is the same or approximately the same, so that the display effect of the second parallax image is as close as possible to the second original parallax images, thereby improving the 3D display effect of the display 10 .

Further, as an optional implementation, the constant c may be 255. When c is 255, as far as one display unit 102 is concerned, the sum of the pixel values of the z pixels in the corresponding second parallax image is equal to The sum of the pixel values of z pixels corresponding to the display unit 102 in the second original parallax image is equal. At this time, the overall display effect of the second parallax image is close to the overall display effect of the second original parallax image, and the user can obtain better viewing experience. At the same time, since the brightness of the light modulated by the polarization modulator 110 can only be kept constant or decreased, and cannot be increased, setting c to 255 can ensure that the polarization modulator 110 has the largest adjustable range.

Further, as an optional implementation manner, the value of y is less than or equal to the value of x. Obviously, if the value of y is too large, it means that the values of most of the display pixels 102a in the display unit 102 are replaced by constants, which will cause a large loss of information of the first original parallax image, resulting in the display of the first parallax image decline in quality. Therefore, setting y to be less than or equal to x can ensure that the first parallax image has better display quality. At the same time, from another perspective, when y is small, as far as a display unit 102 is concerned, the sum of the pixel values of the z pixels in its corresponding first parallax image is the same as that corresponding to the display in the first original parallax image The sum of the pixel values of the z pixels in the unit 102 is approximately equal, and the first parallax image has a better display effect. For example, y can be set as, but not limited to, less than or equal to one-third or one-fourth of x, provided that y is an integer greater than or equal to 1 of course.

FIG. 3 shows a schematic structural diagram of glasses 20 provided by an embodiment of the present invention. Referring to FIG. 3 , the glasses 20 include a frame 200 and a first lens 210 mounted on the frame 200, wherein the first lens 210 includes a polarizer that matches the polarization modulator 110 of the display 10, matching means that the polarizer can The light modulated by the polarization modulator 110 is analyzed for polarization. Since the first lens 210 includes a polarizer, the human eye can view the second parallax image through the first lens 210 .

The first eyeglass 210 referred to here includes a polarizer, which can be directly made of the first eyeglass 210 by the polarizer, or the first eyeglass 210 can include ordinary eyeglasses and polarizers without a polarizing function, by made by stacking polarizers. The function of the spectacle frame 200 is to support the first lens 210. The spectacle frame 200 should be understood in a broad sense and cannot be simply understood as a frame of ordinary glasses. For example, it can also be a frame of a helmet on which the first lens 210 is installed.

Further, the second lens 220 can also be installed on the frame 200, the second lens 220 is an ordinary lens without polarizing function, which is used to realize the function of an ordinary lens, and at the same time, the human eye can see the first polarized lens through the second lens 220. Parallax images to form stereoscopic vision. Of course, in some embodiments, the second lens 220 is not necessary. For example, in FIG. The first parallax image is viewed with the naked eye. It should be pointed out that there is no substantive difference in viewing the display 10 between viewing with naked eyes and viewing through ordinary glasses without polarizing function, so the two cases are not distinguished in detail in the previous description.

The glasses 20 need to cooperate with the display 10 provided by the embodiment of the present invention to watch 3D images. Of course, when not used to watch the display 10 provided by the embodiment of the present invention, the glasses 20 can also be used as ordinary glasses.

The working principle of the display system 1 will be described below through a specific example. In this example, each display unit 102 includes 4 display pixels 102a, ie z=4. FIG. 4(A) to FIG. 4(F) show a schematic diagram of the display process of the display system 1 provided by the embodiment of the present invention.

FIG. 4(A) shows 4 pixels of the first original parallax image, and FIG. 4(B) shows 4 pixels of the second original parallax image. Fig. 4 (C) shows 4 display pixels 102a in the display unit 102 on the display panel 100, wherein the pixel values of the 3 display pixels 102a in the lower left corner are the same as the pixel values of the corresponding positions in the first original parallax image, and 1 in the upper right corner The pixel value of each display pixel 102a is a constant c, that is, x=3, y=1. Fig. 4 (D) is the 4 modulation pixels 112a in the modulation unit 112 on the polarization modulator 110, wherein the gray value _m of the 3 modulation pixels 112a in the lower left corner satisfies:

The gray value _m4 of the modulation pixel 112a in the upper right corner satisfies:

m ₄ =b _n +k ₁ +k ₂ +k ₃

FIG. 4(E) is the first parallax image viewed with naked eyes, and of course the first parallax image is also used for 2D display on the display 10 . Fig. 4(F) is the second parallax image viewed through the first lens 210 of the glasses 20, wherein the pixel values d _n of the 3 pixels in the upper left corner are:

The pixel value _d4 of the top right 1 pixel is:

If c is 255, it satisfies d ₁ +d ₂ +d ₃ +d ₄ =b ₁ +b ₂ +b ₃ +b ₄ , which corresponds to the pixel values in the four second parallax images of one display unit 102 The sum is equal to the sum of the pixel values in the 4 second original disparity images.

To sum up, the display 10 in the display system 1 provided by the embodiment of the present invention uses the display panel 100 to display the first parallax image as a 2D picture of the display 10, and at the same time, the first parallax image and the first parallax image are passed through the polarization modulator 110 The second parallax image generated after modulation is used as a 3D image displayed on the display 10 . And when the user watches the display 10 with naked eyes, he can watch a 2D picture to realize the 2D display function of the display 10; 3D display function. Therefore, the display 100 is compatible with 2D display and 3D display, different users can choose to watch 2D pictures or 3D pictures according to their own needs at the same time, and the same user can also choose to watch 2D pictures or 3D pictures according to their own needs at different times, fully It satisfies the different viewing needs of users and enables users to have greater freedom of viewing choices.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (9)

1. A display, characterized in that, comprising: A display panel, the display panel includes a plurality of display pixels, the plurality of display pixels are used to display a first parallax image, and the first parallax image is used for 2D display and 3D display at the same time; a polarization modulator, the polarization modulator is arranged on one side of the display panel, the polarization modulator includes a plurality of modulation pixels corresponding to the plurality of display pixels, and the plurality of modulation pixels are used to modulate the The polarization direction of the light emitted by the plurality of display pixels is used to generate the second parallax image for 3D display. 2. The display according to claim 1, wherein the display panel comprises a plurality of display units, and each display unit in the plurality of display units comprises z display pixels; The polarization modulator includes a plurality of modulation units corresponding to the plurality of display units, and each modulation unit in the plurality of modulation units includes z modulation pixels corresponding to the z display pixels; The z modulation pixels are used to modulate the polarization direction of the light emitted by the z display pixels, where z is an integer greater than or equal to 2. 3. The display according to claim 2, wherein the pixel values of the x display pixels among the z display pixels are equal to the pixel values of the corresponding pixels in the first original parallax image, and the z display pixels Among the display pixels, the pixel values of y display pixels except the x display pixels are all constant c, where x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, and c is a positive value less than or equal to 255. integer; The gray value m _n of the x modulation pixels corresponding to the x display pixels among the z modulation pixels satisfies: The gray value m _n of the y modulation pixels corresponding to the y display pixels among the z modulation pixels satisfies: Wherein, a _n is the pixel value of the pixel corresponding to the display pixel position in the first original parallax image, b _n is the pixel value of the pixel corresponding to the display pixel position in the second original parallax image, and n is the serial number. 4. The display of claim 3, wherein c is equal to 255. 5. The display according to claim 3, wherein y is less than or equal to x. 6. The display according to any one of claims 1-5, wherein the polarization modulator is a liquid crystal display panel with an analyzer removed. 7. The display according to any one of claims 2-5, wherein the plurality of display units are arranged periodically on the display panel. 8. A pair of glasses, characterized in that it is used in conjunction with the display according to any one of claims 1-7, and the glasses are located at the side of the polarization modulator of the display that is far away from the display panel of the display. one side, including: frame; a first lens, the first lens is installed on the frame, and the first lens includes a polarizer capable of analyzing the light modulated by the polarization modulator; The frame is provided with a position for installing the second lens; Wherein, no lens is installed at the position, or the glasses further include a second lens without polarizing function and the second lens is installed at the position. 9. A display system, characterized in that it comprises: A display as claimed in any one of claims 1-7; The spectacles of claim 8 located on a side of the polarization modulator of the display remote from the display panel of the display.