CN105892078B - A kind of display device and its driving method, display system - Google Patents

Abstract

Embodiments of the present invention provide a display device, a driving method thereof, and a display system, which relate to the field of display technology and can integrate 2D display, 3D display, and VR display into one display device. The display device comprises a liquid crystal display panel, a lower polarizer disposed on the light incident side of the liquid crystal display panel, and an upper polarizer and a grating sequentially arranged on the light emitting side of the liquid crystal display panel; the upper polarizer and the lower polarizer are composed of two pieces with the same area The first sub-polarizer and the second sub-polarizer whose polarization direction is vertical are spliced together, and the polarization direction of the sub-polarizer corresponding to the upper polarizer and the lower polarizer is vertical; it also includes: a distance detection sensor and a controller; The distance detection sensor is used to detect the distance from the user to the light-emitting side of the liquid crystal display panel; the controller is used to control the liquid crystal display panel to perform 3D display, 2D display, or VR display according to the detection result of the distance sensor. Used in the manufacture of display devices.

Description

A display device, its driving method, and a display system

technical field

The present invention relates to the field of display technology, in particular to a display device, a driving method thereof, and a display system.

Background technique

With the development of science and technology and the improvement of the quality of life, people are no longer satisfied with the traditional two-dimensions (2D for short) display, but pursue stereoscopic image display. Display devices currently on the market are capable of realizing three-dimensional (Three Dimensions, 3D for short) display and virtual reality (Virtual Reality, VR for short) display.

At present, the conversion between 2D and 3D can be realized, but for VR display, it can only be displayed through an independent device, so that when users need to experience different display effects, they must replace the display device to meet the needs, which reduces the user experience effect .

Contents of the invention

Embodiments of the present invention provide a display device, a driving method thereof, and a display system, which can integrate three display modes of 2D display, 3D display and VR display into one display device.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, a display device is provided, comprising a liquid crystal display panel, a lower polarizer disposed on the light-incident side of the liquid crystal display panel, an upper polarizer and a grating sequentially disposed on the light-emitting side of the liquid crystal display panel; Both the upper polarizer and the lower polarizer are spliced by two first sub-polarizers and second sub-polarizers with the same area and vertical polarization directions, and the positions of the upper polarizer and the lower polarizer are corresponding The polarization direction of the sub-polarizer is vertical; it also includes: a distance detection sensor and a controller; the distance detection sensor is used to detect the distance from the user to the light-emitting side of the liquid crystal display panel; As a result of the detection, the liquid crystal display panel is controlled to perform 3D display, 2D display, or VR display.

Preferably, the display device further includes an OLED display panel disposed on the side of the lower polarizer away from the liquid crystal display panel; wherein, the sub-pixels in the OLED display panel are at least connected to one sub-pixel in the liquid crystal display panel Correspondingly; the controller is also used to control the sub-pixels of the OLED display panel to emit white light or light of three primary colors; when the sub-pixels of the OLED display panel emit light of three primary colors, the liquid crystal display panel does not include a color filter.

Further preferably, the grating is a first cylindrical lens grating.

Further preferably, relative to the first lenticular lens in the first lenticular lens grating located at the center of the liquid crystal display panel, the deflection angle of the first lenticular lens gradually increases from the center to both sides of the liquid crystal display panel. large; wherein, relative to the first rod lens located in the center of the liquid crystal display panel, the first rod lenses located on both sides thereof are symmetrical.

Preferably, the display device further includes a second lenticular lens grating disposed on a side of the first lenticular lens grating away from the liquid crystal display panel; wherein, the first lenticular lens grating and the second lenticular lenticular grating Stacked next to each other, and the convex surface of the second cylindrical lens grating faces away from the side of the first cylindrical lens grating; the arrangement direction of the cylindrical lenses in the first cylindrical lens grating and the second cylindrical lens grating vertical.

Further preferably, relative to the first lenticular lens in the first lenticular lens grating located at the center of the liquid crystal display panel, the deflection angle of the first lenticular lens gradually increases from the center to both sides of the liquid crystal display panel. Large; relative to the second lenticular lens in the second lenticular lens grating located at the center of the liquid crystal display panel, the deflection angle of the second lenticular lens gradually increases from the center to both sides of the liquid crystal display panel.

Wherein, relative to the first lenticular lens located at the center of the liquid crystal display panel, the first lenticular lenses located on both sides thereof are symmetrical; relative to the second lenticular lens located at the center of the liquid crystal display panel, The side of the second cylindrical lens is symmetrical.

Preferably, the display device further includes an anti-reflection film disposed on a side of the upper polarizer away from the liquid crystal display panel.

Further preferably, the anti-reflection film includes a first anti-reflection film and a second anti-reflection film; both the first anti-reflection film and the second anti-reflection film are wedge-shaped and have the same size; wherein, the The first anti-reflection coating corresponds to the left-eye sub-pixel during 3D display, and the second anti-reflection coating corresponds to the right-eye sub-pixel during 3D display; the adjacent parts of the first anti-reflection coating and the second anti-reflection coating have the same thickness.

In the second aspect, there is provided a display system, which includes the display device described in the first aspect above, and also includes VR glasses; wherein, the polarization direction of the left eye glass of the VR glasses is the same as that of the polarizer corresponding to the position of the left eye in the upper polarizer. The polarization direction of the polarizer is parallel, and the polarization direction of the right eye lens is parallel to the polarization direction of the sub-polarizer corresponding to the position of the right eye in the upper polarizer.

Preferably, the lenses of the VR glasses are concave lenses.

In a third aspect, there is provided a method for driving a display device according to the first aspect, comprising:

When the distance from the user to the light-emitting side of the liquid crystal display panel is less than the first preset value, control all sub-pixels in the liquid crystal display panel corresponding to the first sub-polarizer to display the first image in odd frames, and control the liquid crystal display panel All the sub-pixels corresponding to the second sub-polarizer in the do not emit light; control all the sub-pixels corresponding to the second sub-polarizer in the liquid crystal display panel to display the second image in the even frames, and control the second image in the liquid crystal display panel All sub-pixels corresponding to a sub-polarizer do not emit light.

When the distance from the user to the light-emitting side of the liquid crystal display panel is greater than a first preset value and smaller than a second preset value, all sub-pixels in the liquid crystal display panel are controlled to display an image in each frame.

When the distance from the user to the light-emitting side of the liquid crystal display panel is greater than a second preset value, the sub-pixels corresponding to the left eye in the liquid crystal display panel are controlled to display the left-eye image, and the sub-pixels corresponding to the right eye are controlled to display the right-eye image.

Embodiments of the present invention provide a display device, its driver, and a display system. According to the distance from the user to the light-emitting side of the liquid crystal display panel, when the distance is greater than the second preset value, due to the grating arranged on the light-emitting side of the liquid crystal display panel Spectroscopy, the left-eye image displayed by the sub-pixel corresponding to the left eye in the liquid crystal display panel can be received by the left eye, and the right-eye image displayed by the sub-pixel corresponding to the right eye can be received by the right eye, thereby achieving a 3D display effect; when the distance When it is less than the second preset value and greater than the first preset value, the grating does not play a light splitting effect at this time, and the images displayed by all sub-pixels in the liquid crystal display panel can be received by the left eye and the right eye at the same time, thereby achieving a 2D display effect ; When the distance is less than the first preset value, the grating will not be able to split light at this time, because the upper polarizer and the lower polarizer are composed of two first sub-polarizers and second sub-polarizers with the same area and vertical polarization direction The polarization direction of the sub-polarizer corresponding to the position of the upper polarizer and the lower polarizer is vertical, so by wearing the polarization direction of the left eye lens and the polarization direction of the sub-polarizer corresponding to the position of the left eye in the upper polarizer Direction is parallel, and the polarization direction of the right eye lens is parallel to the polarization direction of the sub-polarizer corresponding to the position of the right eye in the upper polarizer. Only the left eye can see the image in odd frames, and only the left eye can see the image in even frames. The right eye sees the image, thereby realizing the VR display effect.

Based on this, the display device provided by the embodiment of the present invention can integrate three display modes of 2D display, 3D display and VR display into one display device to improve user experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a first structural schematic diagram of a display device provided by an embodiment of the present invention;

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

FIG. 3(a) is a first schematic diagram of the corresponding relationship between sub-pixels of a liquid crystal display panel and sub-pixels of an OLED display panel according to an embodiment of the present invention;

FIG. 3(b) is a second schematic diagram of the corresponding relationship between sub-pixels of a liquid crystal display panel and sub-pixels of an OLED display panel according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram III of a display device provided by an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a cylindrical lens grating provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a two-layer cylindrical lens grating stack provided by an embodiment of the present invention;

FIG. 7 is a fourth structural schematic diagram of a display device provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an anti-reflection film provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram II of an anti-reflection film provided by an embodiment of the present invention;

Fig. 10 is a flowchart of a driving method provided by an embodiment of the present invention.

reference sign

10-liquid crystal display panel; 101-left eye sub-pixel of liquid crystal display panel; 102-right eye sub-pixel of liquid crystal display panel; 20-lower polarizer; 201-first sub-polarizer of lower polarizer; 202-lower polarizer The second sub-polarizer of the sheet; 30-upper polarizer; 301-the first sub-polarizer of the upper polarizer; 302-the second sub-polarizer of the upper polarizer; 40-grating; 401-the first column lens grating; 4011-the first rod lens; 402-the second rod lens grating; 4022-the second rod lens; 50-OLED display panel; 60-anti-reflection film; 601-the first anti-reflection film; 70-optical transparent glue; α-pillar lens deflection angle; β-wedge angle.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of the present invention provides a display device, as shown in FIG. 1 , comprising a liquid crystal display panel 10, a lower polarizer 20 disposed on the light-incident side of the liquid crystal display panel 10, and an upper polarizer disposed on the light-emitting side of the liquid crystal display panel 10 in sequence. 30 and grating 40.

Wherein, the upper polarizer 30 and the lower polarizer 20 are spliced by two first sub-polarizers and second sub-polarizers with the same area and vertical polarization directions, and the positions of the upper polarizer 30 and the lower polarizer 20 correspond to each other. The polarization direction of the sub-polarizer is vertical. That is, as shown in FIG. 1 , the upper polarizer 30 is spliced by the first sub-polarizer 301 of the upper polarizer and the second sub-polarizer 302 of the upper polarizer, and the first sub-polarizer 301 of the upper polarizer and the upper polarizer The polarization direction of the second sub-polarizer 302 of the polarizer is vertical; the lower polarizer 20 is spliced by the first sub-polarizer 201 of the lower polarizer and the second sub-polarizer 202 of the lower polarizer. The polarization direction of the second sub-polarizer 202 of the sub-polarizer 201 and the lower polarizer is vertical; the first sub-polarizer 301 of the upper polarizer corresponds to the first sub-polarizer 201 of the lower polarizer and the polarization direction is vertical; the upper polarizer The second sub-polarizer 302 of the lower polarizer corresponds to the second sub-polarizer 202 of the lower polarizer, and the polarization direction is vertical.

The display device also includes: a distance detection sensor (not marked in the figure) and a controller (not marked in the figure); the distance detection sensor is used to detect the distance from the user to the light-emitting side of the liquid crystal display panel 10; As a result of the detection, the liquid crystal display panel 10 is controlled to perform 3D display, 2D display, or VR display.

Of course, the display device also includes a backlight source (not marked in the figure) disposed on the light-incident side of the liquid crystal display panel 10 . Wherein, the embodiment of the present invention does not limit the backlight source, as long as the light source can be provided to the liquid crystal display panel 10 .

Based on the above description, the working principle of the display device provided by the embodiment of the present invention when performing 2D display is: the distance from the user to the light-emitting side of the liquid crystal display panel 10 is detected by the distance detection sensor, and when the detected distance is greater than the first preset value such as 10cm , when the value is smaller than a second preset value such as 25 cm, the controller controls all sub-pixels in the liquid crystal display panel 10 to display an image in each frame, thereby realizing a 2D display effect.

The working principle of 3D display is as follows: the distance from the user to the light-emitting side of the liquid crystal display panel 10 is detected by the distance detection sensor, and when the detected distance is greater than a second preset value such as 25 cm, the controller controls the corresponding left The sub-pixels of the eye, such as odd-numbered sub-pixels, display the left-eye image, and the sub-pixels corresponding to the right eye, such as even-numbered sub-pixels, display the right-eye image. On this basis, through the fusion of the user's brain, a three-dimensional image with a sense of depth is finally formed. Thereby realizing 3D display effect.

The working principle of VR display is as follows: the distance from the user to the light-emitting side of the liquid crystal display panel 10 is detected by the distance detection sensor. When the detected distance is less than the first preset value such as 10 cm, the controller controls the upper polarized light The sub-pixels corresponding to the first sub-polarizer 301 of the upper polarizer are used to display odd-numbered frame images, and the sub-pixels corresponding to the second sub-polarizer 302 of the upper polarizer are controlled to display even-numbered frame images, and the odd-even frame images are displayed in time sequence. On this basis, the user wears the polarization direction of the left-eye lens parallel to the polarization direction of the sub-polarizer corresponding to the position of the left eye in the upper polarizer 30, such as the first sub-polarizer 301 of the upper polarizer, and the polarization direction of the right-eye lens VR glasses whose direction is parallel to the polarization direction of the sub-polarizer corresponding to the position of the right eye in the upper polarizer 30, such as the second sub-polarizer 302 of the upper polarizer, can only make the left eye see images in odd-numbered frames, and can only make the left eye see images in even-numbered frames. The frame can only make the right eye see the image, thus realizing the VR display effect. Wherein, when the distance between the user's eyes and the display device is small, the display device displays "distorted" image information, and the image information can be viewed as normal image information after being viewed through VR glasses.

Among them, the switch between 2D display, 3D display, and VR display is performed by the controller after comparing the distance from the user to the light-emitting side of the liquid crystal display panel 10 detected by the distance detection sensor with the preset value, and then controls the liquid crystal display panel 10 to perform corresponding operations. display to achieve.

It should be noted that the type of the grating 40 is not limited, and the spectroscopic effect can be realized, and when the distance between the user and the liquid crystal display panel 10 is greater than the second preset value, the left eye of the user can only see the light in the liquid crystal display panel 10. For the left-eye image displayed by the sub-pixel corresponding to the left eye, the right eye only needs to see the right-eye image displayed by the sub-pixel corresponding to the right eye in the liquid crystal display panel 10 .

Wherein, the size of the second preset value can be set with reference to the focal length of the grating 40. When the distance from the user to the liquid crystal display panel 10 is less than the second preset value, the grating 40 does not function as a light splitter. The refinement of the distance of the panel 10 can control the liquid crystal display panel 10 to perform 2D or VR display.

An embodiment of the present invention provides a display device. According to the distance from the user to the light-emitting side of the liquid crystal display panel 10, when the distance is greater than the second preset value, due to the light-splitting effect of the grating 40 arranged on the light-emitting side of the liquid crystal display panel 10, the liquid crystal The left-eye image displayed by the sub-pixel corresponding to the left eye in the display panel 10 can be received by the left eye, and the right-eye image displayed by the sub-pixel corresponding to the right eye can be received by the right eye, thereby realizing a 3D display effect; when the distance is less than the second When the preset value is greater than the first preset value, the grating 40 does not have a spectroscopic effect at this time, and the images displayed by all sub-pixels in the liquid crystal display panel 10 can be received by the left eye and the right eye simultaneously, thereby realizing a 2D display effect; When the distance is less than the first preset value, the grating 40 will not be able to split light at this time, because the upper polarizer 30 and the lower polarizer 20 are composed of two first sub-polarizers and second sub-polarizers with the same area and vertical polarization directions. The sub-polarizers are spliced together, and the polarization directions of the sub-polarizers corresponding to the positions in the upper polarizer 30 and the lower polarizer 20 are vertical, so by wearing the left-eye lens, the polarization direction is the same as that of the upper polarizer 30 corresponding to the position of the left eye. The polarization directions of the sub-polarizers are parallel, and the polarization direction of the right eye lens is parallel to the polarization direction of the sub-polarizers in the upper polarizer 30 corresponding to the position of the right eye. In the VR glasses, only the left eye can see images in odd frames. In even frames, only the right eye can see the image, so as to realize the VR display effect.

Based on this, the display device provided by the embodiment of the present invention can integrate three display modes of 2D display, 3D display and VR display into one display device to improve user experience.

Since the organic light emitting diode (Organic Light Emitting Diode, referred to as OLED) has the characteristics of light and thin, the thickness of the entire display module can be reduced, and OLED has the advantages of high color gamut, high contrast, etc., therefore, OLED display panels can be used as liquid crystal display panels. The backlight of the display panel 10 .

That is, as shown in FIG. 2 , the display device further includes an OLED display panel 50 disposed on the side of the lower polarizer 20 away from the liquid crystal display panel 10; One sub-pixel corresponds.

On this basis, the controller is also used to control the sub-pixels of the OLED display panel 50 to emit white light or light of three primary colors; when the sub-pixels of the OLED display panel 50 emit light of three primary colors, the liquid crystal display panel 10 does not include a color filter.

Wherein, the OLED display panel 50 and the liquid crystal display panel 10 can be connected by an optical clear resin (OCR for short) 70 .

It should be noted that, firstly, due to the technical limitations of the organic layers in the OLED display panel 50, the resolution of the OLED display panel 50 cannot be made small enough. Based on this, if the resolution of the liquid crystal display panel 10 is made small enough , then, as shown in Figure 3(a), one sub-pixel of the OLED display panel 50 can be made to correspond to two or more sub-pixels of the liquid crystal display panel 10, wherein Figure 3(a) takes two as an example Schematic; if the resolution of the liquid crystal display panel 10 is equivalent to that of the OLED display panel 50, then, as shown in FIG. .

Second, when the controller controls the sub-pixels of the OLED display panel 50 to emit white light, the OLED display panel 50 is used as a backlight source; when the controller controls the sub-pixels of the OLED display panel 50 to emit light of three primary colors, the OLED display panel 50 is used as a backlight source, and as a device for realizing color display, at this time, the liquid crystal display panel 10 is used for brightness control. Wherein, the three primary colors of light may be red, green, and blue, and may also be yellow, magenta, and cyan.

In the embodiment of the present invention, when the OLED display panel 50 is used as a color display device, and the liquid crystal display panel 10 removes the color film and is only used for brightness control as a brightness control device, the transmittance of the display device can be increased.

Since the rod lens grating has a wide range of applications and its manufacturing process is simple, in this embodiment of the present invention, preferably, as shown in FIG. 4 , the grating 40 is a first rod lens grating 401 . The first cylindrical lens grating 401 includes a plurality of first cylindrical lenses 4011 .

Wherein, the thickness d of the first cylindrical lens grating 401 can be calculated according to the formula to calculate, where n is the refractive index of the first cylindrical lens grating 401, and r is the radius of curvature of the first cylindrical lens 4011.

Further preferably, as shown in FIG. 5 , relative to the first lenticular lens 4011 in the first lenticular lens grating 401 located at the center of the liquid crystal display panel 10, the deflection of the first lenticular lens 4011 from the center to both sides of the liquid crystal display panel 10 The angle gradually increases; wherein, relative to the first lenticular lens 4011 located at the center of the liquid crystal display panel 10 , the first lenticular lenses 4011 located on both sides thereof are symmetrical.

Specifically, as shown in FIG. 5 , assuming that the first lenticular lens 4011 located at the center of the liquid crystal display panel 10 is the 0th first lenticular lens 4011 (the first lenticular lens 4011 shown in the dotted line box in the figure), from the liquid crystal display The first rod lenses 4011 from the center to the left of the panel 10 are sequentially numbered 1, 2, 3..., n, and the first rod lenses 4011 from the center to the right of the liquid crystal display panel 10 are sequentially numbered 1′, 2′, 3'..., n' pieces. Correspondingly, the first deflection angle _α1 of the first first cylindrical lens 4011 on the left side is the same as that of the first first cylindrical lens 4011 on the right side, and the second first cylindrical lens 4011 on the left side is the same as that of the right side first cylindrical lens 4011. The second deflection angle α ₂ of the 2′-th first cylindrical lens 4011 is the same, and the second deflection angle α ₂ is greater than the first deflection angle α ₁ . By analogy, the deflection of the first cylindrical lens 4011 in the first cylindrical lens grating 401 is completed. Wherein, the 0th first cylindrical lens 4011 is not deflected.

For the deflection angle α of the first cylindrical lens 4011, according to the formula , where x is half the length of the screen of the display device, and y is the distance from the user to the first lenticular lens grating 401 . For example, when the screen length of the display device is 12 cm, and the distance between the user and the first lenticular lens grating 401 is 30 cm, at this time, the deflection angle of the first lenticular lens 4011 positioned at the outermost side of the liquid crystal display panel 10 is

In the embodiment of the present invention, the first lenticular lens 4011 of the first lenticular lens grating 401 is deflected at a small angle from the center to the edge, so that the light emitted by the liquid crystal display panel 10 can better enter the user's field of vision and improve user experience.

Further, as shown in FIG. 6 , the display device further includes a second lenticular lens grating 402 disposed on the side of the first lenticular lenticular grating 401 away from the liquid crystal display panel 10; the second lenticular lenticular grating 402 includes a plurality of second lenticular gratings Lens 4022. Wherein, the first cylindrical lens grating 401 and the second cylindrical lens grating 402 are stacked close to each other, and the convex surface of the second cylindrical lens grating 402 faces away from the first cylindrical lens grating 401; the first cylindrical lens grating 401 and the second cylindrical lens grating The arrangement direction of the cylindrical lenses in the two cylindrical lens grating 402 is vertical.

Wherein, the calculation method of the thickness d of the second rod lens grating 402 is the same as the calculation method of the thickness d of the first rod lens grating 401 .

In addition, the arrangement direction of the rod lenses in the first rod lens grating 401 and the second rod lens grating 402 is vertical. obtained by rotating 90°.

In the embodiment of the present invention, by arranging two layers of the first rod lens grating 401 and the second rod lens grating 402 that are stacked close to each other and arranged vertically, a linear light beam converged by the single layer of the first rod lens grating 401 can be transformed into The point of light that converges to the point of the human eye improves the display effect.

Further preferably, relative to the first lenticular lens 4011 in the first lenticular lens grating 401 located at the center of the liquid crystal display panel 10, the deflection angle of the first lenticular lens 4011 gradually increases from the center to both sides of the liquid crystal display panel 10 In this case, relative to the second lenticular lens 4022 in the second lenticular lens grating 402 located at the center of the liquid crystal display panel 10 , the deflection angle of the second lenticular lens 4022 gradually increases from the center to both sides of the liquid crystal display panel 10 .

Wherein, relative to the second lenticular lens 4022 located at the center of the liquid crystal display panel 10 , the second lenticular lenses 4022 located on both sides thereof are symmetrical.

Wherein, the deflection angle α of the second cylindrical lens 4022 is calculated in the same manner as the deflection angle α of the first cylindrical lens 4011 .

In the embodiment of the present invention, the first lenticular lens 4011 of the first lenticular lens grating 401 and the second lenticular lens 4022 of the second lenticular lens grating 402 are deflected at a small angle, so that the light emitted by the liquid crystal display panel 10 can better enter user's field of view.

Based on the above, in order to increase the transmittance of the display device, in the embodiment of the present invention, preferably, as shown in FIG.

Wherein, the material and thickness of the anti-reflection film 60 are not limited, as long as the transmittance of the display device can be improved.

Further preferably, as shown in Figure 8 and Figure 9, the anti-reflection film 60 includes a first anti-reflection film 601 and a second anti-reflection film 602; the shapes of the first anti-reflection film 601 and the second anti-reflection film 602 are wedge-shaped and the same size; wherein, the first anti-reflection film 601 corresponds to the left-eye sub-pixel 101 in 3D display, and the second anti-reflection film 602 corresponds to the right-eye sub-pixel 102 in 3D display; the first anti-reflection film 601 and the second anti-reflection film The adjacent parts of 602 have the same thickness.

Wherein, there is no limitation on the size of the wedge vertex angle β, and in the embodiment of the present invention, β=arctan(0.1)° is preferred.

In the embodiment of the present invention, the shape of the anti-reflection film 60 is set to be wedge-shaped, and respectively correspond to the left-eye sub-pixel and the right-eye sub-pixel during 3D display, so that the light emitted by the liquid crystal display panel 10 is slightly bent, so that the left and right eyes of the user can see The images obtained are more targeted and the stereoscopic display effect is improved.

An embodiment of the present invention provides a display system, including the above-mentioned display device, and also includes VR glasses; wherein, the polarization direction of the left eye lens of the VR glasses is the same as the polarization direction of the sub-polarizer corresponding to the position of the left eye in the upper polarizer 30 The directions are parallel, and the polarization direction of the right-eye lens is parallel to the polarization direction of the sub-polarizer corresponding to the position of the right eye in the upper polarizer 30 .

Wherein, when the distance between the user's eyes and the display device is small, the display device displays "distorted" image information, and the image information can be viewed as normal image information after being viewed through VR glasses.

An embodiment of the present invention provides a display system. The display device in the display system detects the distance from the user to the light-emitting side of the liquid crystal display panel 10. When the distance is greater than the second preset value, the light-emitting The light-splitting effect of the grating 40 on the side, the left-eye image displayed by the sub-pixel corresponding to the left eye in the liquid crystal display panel 10 can be received by the left eye, and the right-eye image displayed by the sub-pixel corresponding to the right eye can be received by the right eye, thereby realizing 3D Display effect; when the distance is less than the second preset value and greater than the first preset value, the grating 40 does not have a light splitting effect, and the images displayed by all sub-pixels in the liquid crystal display panel 10 can be viewed by the left and right eyes. Simultaneous reception, thereby realizing 2D display effect; The first sub-polarizer and the second sub-polarizer are spliced together, and the polarization directions of the corresponding sub-polarizers in the upper polarizer 30 and the lower polarizer 20 are vertical, so the polarization direction of the upper polarizer is the same as that of the upper polarizer by wearing the left eyeglass. The polarization direction of the sub-polarizer corresponding to the position of the left eye in the sheet 30 is parallel, and the polarization direction of the right-eye lens is parallel to the polarization direction of the sub-polarizer corresponding to the position of the right eye in the upper polarizer 30. The frame can only make the left eye see the image, and the even frame can only make the right eye see the image, so as to realize the VR display effect.

In order to allow users with different degrees of myopia to clearly experience the virtual reality effect brought by the VR display, in the embodiment of the present invention, it is further preferred that the lens of the VR glasses is a concave lens.

Among them, the optical size parameters of the concave lens can be confirmed according to the degree of myopia of each person and the superposition effect of the cylindrical lens grating.

An embodiment of the present invention provides a method for driving a display device, as shown in FIG. 10 , the method includes:

S10. When the distance from the user to the light-emitting side of the liquid crystal display panel 10 is less than the first preset value, control all sub-pixels in the liquid crystal display panel 10 corresponding to the first sub-polarizers to display the first image in odd frames, and control the liquid crystal display panel. All sub-pixels corresponding to the second sub-polarizer in 10 do not emit light; control all sub-pixels corresponding to the second sub-polarizer in the liquid crystal display panel 10 to display the second image in the even-numbered frame, and control the liquid crystal display panel 10 and the first sub-pixel to display the second image. All sub-pixels corresponding to the sub-polarizers do not emit light.

Specifically, the distance from the user to the light-emitting side of the liquid crystal display panel 10 is detected by the distance detection sensor. When the detected distance is less than the first preset value, the controller controls the first sub-polarizer in the liquid crystal display panel 10 to be connected to the upper polarizer to The sub-pixels corresponding to 301 display images of odd frames, the sub-pixels corresponding to the second sub-polarizer 302 of the upper polarizer display images of even frames, and images of odd and even frames are displayed in time sequence. On this basis, the user wears the polarization direction of the left-eye lens parallel to the polarization direction of the sub-polarizer corresponding to the position of the left eye in the upper polarizer 30, such as the first sub-polarizer 301 of the upper polarizer, and the polarization direction of the right-eye lens VR glasses whose direction is parallel to the polarization direction of the sub-polarizer corresponding to the position of the right eye in the upper polarizer 30, such as the second sub-polarizer 302 of the upper polarizer, can only make the left eye see images in odd-numbered frames, and can only make the left eye see images in even-numbered frames. The frame can only make the right eye see the image, thus realizing the VR display effect.

S20. When the distance from the user to the light-emitting side of the liquid crystal display panel 10 is greater than the first preset value and smaller than the second preset value, control all sub-pixels in the liquid crystal display panel 10 to display an image in each frame.

Specifically, the distance from the user to the light-emitting side of the liquid crystal display panel 10 is detected by the distance detection sensor. When the detected distance is greater than the first preset value and smaller than the second preset value, the controller controls all sub The pixels display an image in each frame, thus achieving a 2D display effect.

S30. When the distance from the user to the light-emitting side of the liquid crystal display panel 10 is greater than a second preset value, control the sub-pixels corresponding to the left eye in the liquid crystal display panel 10 to display the left-eye image, and the sub-pixels corresponding to the right eye to display the right-eye image.

Specifically, the distance from the user to the light-emitting side of the liquid crystal display panel 10 is detected by the distance detection sensor. When the detected distance is greater than the second preset value, the controller controls the sub-pixels corresponding to the left eye in the liquid crystal display panel 10, such as odd-numbered sub-pixels. The left-eye image is displayed, and the sub-pixels corresponding to the right eye, such as even-numbered sub-pixels, display the right-eye image. On this basis, through the fusion of the user's brain, a stereoscopic image with a sense of depth is finally formed to achieve a 3D display effect.

Wherein, the size of the second preset value can be set with reference to the focal length of the grating 40, so that the grating 40 can realize the spectroscopic effect, and when the distance between the user and the liquid crystal display panel 10 is less than the second preset value, the grating 40 will not work . Optionally in this embodiment of the present invention, the second preset value is 25cm. At this time, the liquid crystal display panel 10 can be controlled to perform 2D or VR display by refining the distance from the user to the liquid crystal display panel 10 , for example, the first preset value is optional, and the first preset value is 10 cm.

That is, when the distance detection sensor detects that the distance on the light-emitting side of the user's liquid crystal display panel 10 is greater than 10 cm and less than 25 cm, under the control of the controller, the display device performs 2D display; When the distance is greater than 25 cm, the display device performs 3D display under the control of the controller; when the distance detection sensor detects that the distance from the light-emitting side of the user's liquid crystal display panel 10 is less than 10 cm, the display device performs VR display under the control of the controller.

An embodiment of the present invention provides a method for driving a display device. By detecting the distance from the user to the light-emitting side of the liquid crystal display panel 10, when the distance is greater than the second preset value, due to the grating 40 disposed on the light-emitting side of the liquid crystal display panel 10 Spectroscopic effect, the left-eye image displayed by the sub-pixel corresponding to the left eye in the liquid crystal display panel 10 can be received by the left eye, and the right-eye image displayed by the sub-pixel corresponding to the right eye can be received by the right eye, thereby realizing a 3D display effect; when the When the distance is smaller than the second preset value and greater than the first preset value, the grating 40 does not have a light splitting effect at this time, and the images displayed by all sub-pixels in the liquid crystal display panel 10 can be received by the left eye and the right eye simultaneously, thereby realizing 2D display effect; when the distance is less than the first preset value, the grating 40 cannot split light at this time, because the upper polarizer 30 and the lower polarizer 20 are composed of two first sub-polarizers with the same area and vertical polarization direction sheet and the second sub-polarizer are spliced together, and the polarization directions of the sub-polarizers corresponding to the positions in the upper polarizer 30 and the lower polarizer 20 are vertical, so the polarization direction of the upper polarizer 30 is the same as that of the upper polarizer 30 by wearing the left eye lens. The polarization direction of the sub-polarizer corresponding to the eye position is parallel, and the polarization direction of the right eye lens is parallel to the polarization direction of the sub-polarizer corresponding to the right eye position in the upper polarizer 30. VR glasses can only make the left When the eyes see the image, only the right eye can see the image in even frames, so as to realize the VR display effect.

Based on this, the driving method of the display device provided by the embodiment of the present invention realizes switching between 2D display, 3D display and VR display in one display device by controlling the liquid crystal display panel 10 to improve user experience.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present invention, and should cover all Within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (11)

1. a kind of display device, which is characterized in that including liquid crystal display panel, be arranged on the liquid crystal display panel incident side Down polaroid and the upper polaroid and grating for being successively set on the liquid crystal display panel light emission side；The upper polaroid and The down polaroid is identical by two pieces of areas and polarization direction the is vertical sub- polaroid splicing of the first sub- polaroid and second and Into, and in the upper polaroid and the down polaroid the corresponding sub- polaroid in position polarization direction it is vertical；

It further includes：Distance detection sensor and controller；The distance detection sensor is used to detect user to the liquid crystal Show the distance of panel light emission side；The controller is used for the testing result according to the range sensor, controls the liquid crystal Show that panel carries out 3D display or progress 2D shows or carries out VR and shows.

2. display device according to claim 1, which is characterized in that further include and be arranged on the down polaroid far from described The OLED display panel of liquid crystal display panel side；

Wherein, the sub-pixel in the OLED display panel is at least corresponding with a sub-pixel in liquid crystal display panel；

The controller is additionally operable to control the sub-pixel of the OLED display panel to emit white light or primaries；It is shown in the OLED In the case of the sub-pixel hair primaries for showing panel, the liquid crystal display panel does not include color film.

3. display device according to claim 1 or 2, which is characterized in that the grating is the first Lenticular screen.

4. display device according to claim 3, which is characterized in that be located relatively at the institute at the liquid crystal display panel center The first cylindrical lens in the first Lenticular screen are stated, from the center of the liquid crystal display panel to both sides, first cylindrical lens Deflection angle gradually increase；

Wherein, first cylindrical lens at the liquid crystal display panel center are located relatively at, first column positioned at its both sides Lens are symmetrical.

5. display device according to claim 3, which is characterized in that further include that be arranged on first Lenticular screen remote The second Lenticular screen from the liquid crystal display panel side；

Wherein, first Lenticular screen and second Lenticular screen mutually closely stack, and second cylindrical lens The crowning of grating is directed away from the first Lenticular screen side；First Lenticular screen and second cylindrical lens The orientation of cylindrical lens is vertical in grating.

6. display device according to claim 5, which is characterized in that be located relatively at the institute at the liquid crystal display panel center The first cylindrical lens in the first Lenticular screen are stated, from the center of the liquid crystal display panel to both sides, first cylindrical lens Deflection angle gradually increase；

The second cylindrical lens being located relatively in second Lenticular screen at the liquid crystal display panel center, from the liquid crystal The center of display panel to both sides, the deflection angle of second cylindrical lens gradually increase；

Wherein, first cylindrical lens at the liquid crystal display panel center are located relatively at, first column positioned at its both sides Lens are symmetrical；

Second cylindrical lens at the liquid crystal display panel center are located relatively at, second cylindrical lens pair positioned at its both sides Claim.

7. display device according to claim 1, which is characterized in that further include and be arranged on the upper polaroid far from described The anti-reflection film of liquid crystal display panel side.

8. display device according to claim 7, which is characterized in that the anti-reflection film includes the first anti-reflection film and second and increases Permeable membrane；The shape of first anti-reflection film and second anti-reflection film is wedge shape and size is identical；

Wherein, left eye sub-pixel when first anti-reflection film corresponds to 3D display, right eye picture when the second anti-reflection film corresponds to 3D display Element；First anti-reflection film is identical with the thickness of the second anti-reflection film adjacent.

9. a kind of display system, which is characterized in that including claim 1-8 any one of them display devices, further include VR Mirror；

Wherein, the polarization direction of the VR glasses left eyeglass lens and sub- polaroid corresponding with left eye position in upper polaroid is inclined Shaking, direction is parallel, and the polarization direction of right eye eyeglass is inclined with the sub- polaroid corresponding with right eye position in the upper polaroid The direction that shakes is parallel.

10. display system according to claim 9, which is characterized in that the eyeglass of the VR glasses is concavees lens.

11. a kind of driving method of the display device as described in claim any one of 1-8, which is characterized in that including：

When the distance of user to liquid crystal display panel light emission side is less than the first preset value, the liquid crystal display is controlled in odd-numbered frame All sub-pixels corresponding with the first sub- polaroid show the first image in panel, control in the liquid crystal display panel with second The corresponding all sub-pixels of sub- polaroid do not shine；In even frame controls the liquid crystal display panel with the second sub- polaroid pair All sub-pixels answered show the second image, control all sub- pictures corresponding with the first sub- polaroid in the liquid crystal display panel Element does not shine；

When the distance of user to the liquid crystal display panel light emission side, which is more than the first preset value, is less than the second preset value, in every frame All sub-pixels in the liquid crystal display panel is controlled to show piece image；

When the distance of user to the liquid crystal display panel light emission side is more than the second preset value, the liquid crystal display panel is controlled The sub-pixel of middle corresponding left eye shows left-eye image, and the sub-pixel of corresponding right eye shows eye image.