WO2013143325A1

WO2013143325A1 - 3d display and manufacturing method therefor

Info

Publication number: WO2013143325A1
Application number: PCT/CN2012/086512
Authority: WO
Inventors: 李文波; 武延兵
Original assignee: 京东方科技集团股份有限公司
Priority date: 2012-03-26
Filing date: 2012-12-13
Publication date: 2013-10-03
Also published as: CN102629000A

Abstract

A 3D display and a manufacturing method therefor. The 3D display comprises a display panel (1), an upper polarizer (2) which is arranged on the light-emitting surface of the display panel, and a phase difference plate (7) which is formed at one side of the upper polarizer which is opposite to the display panel. The phase difference plate comprises a reactive monomer RM material which is oriented according to an irradiated exposure light direction and solidified, and comprises a plurality of bar regions which are arranged in columns or rows and have the same width. Every two adjacent bar regions have different orientation directions, and each bar region corresponds to at least one row or one column of subpixels (8) of the display panel.

Description

3D display and manufacturing method thereof

Embodiments of the present invention relate to a 3D display and a method of fabricating the same. Background technique

The 3D (Three Dimensions, 3D) display is divided into eye-eye and eyeglass-type, and the main technology of the eye-mirror type is active shutter technology and polarized glasses technology. The pattern retard technology is a mainstream polarized glasses stereo display technology. The basic structure of this technology is that after a precise alignment on the display panel, a phase difference plate is attached, and different regions on the phase difference plate can be used. Different phase delays are generated so that light of different pixels is emitted in different polarization directions, and the viewer can see the 3D image by wearing the polarized glasses.

At present, a method for fabricating a 3D display panel based on a phase difference plate is to first fabricate a phase difference plate on a glass or film substrate, and then attach the phase difference plate to the display panel with a double-sided tape or other adhesive. In the manufacturing process of the phase difference plate, when the phase difference plate is attached to the display panel, it is always difficult to accurately align the position, and the accuracy is low, so that the 3D product manufactured by this method has a low yield rate and crosstalk. serious. Moreover, the loss of light is caused by the addition of the substrate of the adhesive and the phase difference plate; and the distance between the light-emitting point (the red, green and blue light-emitting points on the display substrate) to the phase difference plate is increased, and the viewing angle is lowered. These problems have seriously hindered the development of phase difference plate type 3D display.

Another process is to directly fabricate a phase difference plate on the upper polarizing plate. The process requires forming an alignment layer comprising at least two domains and a liquid crystal layer to be photocured on the upper polarizing plate, which is cumbersome in process, and is also a double layer structure. Therefore, it will cause light loss to a certain extent and reduce the viewing angle.

When the phase difference plate of the 3D display panel is manufactured according to the above process, there are problems such as alignment accuracy, cumbersome process, low viewing angle, and low display brightness. Summary of the invention

Embodiments of the present invention provide a 3D display and a method of fabricating the same, which can simplify the fabrication process, improve the alignment accuracy of the phase difference plate and the sub-pixels, increase the viewing angle, and increase the display brightness.

In one aspect, an embodiment of the present invention provides a 3D display, including: a display panel; a sheet disposed on a light emitting surface of the display panel; and a phase difference plate formed on a side of the upper polarizing plate opposite to the display panel, the phase difference plate including at least an orientation according to an exposure light direction to be irradiated a cured reactive monomer RM material, and comprising a plurality of strip-shaped regions of equal width arranged in columns or rows, each two adjacent strip-shaped regions having different orientation directions, each of said strip regions being At least one row or a column of sub-pixels of the display panel corresponds to each other.

In another aspect, the embodiment of the present invention provides another 3D display, including: a display panel, comprising: an array substrate and a color filter substrate disposed on the box; and a liquid crystal layer interposed between the array substrate and the color filter substrate An upper polarizing plate is disposed on a light emitting side of the liquid crystal layer; a phase difference plate is formed on a light emitting side of the base substrate of the color filter substrate, and the phase difference plate includes at least an orientation according to an exposure light direction to be irradiated a cured reactive monomer RM material, and comprising a plurality of strip-shaped regions of equal width arranged in columns or rows, each of the two adjacent strip-shaped regions having different orientation directions, each of the strip regions Corresponding to at least one row or a column of sub-pixels of the display panel, the phase difference plate is a phase difference plate that performs alignment and curing of the corresponding region after two sub-regions of exposure synchronization.

Further, the upper polarizing plate is disposed between the base substrate of the color filter substrate of the display panel and the color resin layer, or between the color filter substrate and the liquid crystal layer of the display panel.

In still another aspect, an embodiment of the present invention provides a method for fabricating a 3D display, comprising: step 1, applying a layer including a photosensitive monomer and a reaction sheet on an upper polarizing plate disposed on a light emitting surface of a display panel of the prepared 3D display; a mixture of bulk RM materials to form a mixture layer; step 2, performing a first mask exposure on the mixture layer to form strips of equal width and equally spaced odd or even/even rows or columns of phase difference plates And the step 3, performing a second mask exposure on the mixture layer to form strip-like regions of even-numbered rows or columns/odd rows or columns of a phase difference plate, wherein each two phases The orientation direction of the adjacent strip regions is different, wherein one end of the molecule of the reactive monomer RM material is crosslinked with the photosensitive monomer.

Further, in step 2, the light-transmitting region of the mask used for the first mask exposure corresponds to a strip-shaped region of odd-numbered rows or columns/even rows or columns to be formed, and in step 3, The opaque region of the mask used for the second mask exposure corresponds to a strip-shaped region of odd-numbered rows or columns/even rows or columns that has been formed in step 2, and the light-transmitting region corresponds to an even number to be formed A stripe of rows or columns/odd rows or columns.

The 3D display and the manufacturing method thereof provided by the embodiments of the present invention can simplify the manufacturing process, improve the alignment accuracy of the phase difference plate and the sub-pixels, increase the viewing angle, and increase the display brightness. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic structural diagram of a 3D display according to an embodiment of the present invention;

2a is a schematic structural diagram of a 3D display according to another embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another 3D display according to another embodiment of the present invention; FIG. 3 is a schematic diagram of a first exposure process of a 3D display manufacturing method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a second exposure process of a 3D display manufacturing method according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It is to be noted that the RM (Reactive Mesogens) material according to an embodiment of the present invention is a substance having birefringence characteristics, which can be oriented and cured. Illustratively, one end of the molecule may be cross-linked with the photosensitive monomer and may be oriented with the orientation direction of the photosensitive monomer. Alternatively, the RM material may have the structural unit of the photosensitive monomer and the orientation function of the photosensitive monomer without being oriented by the photosensitive monomer. There are two kinds of RM materials, one is photocurable liquid crystal material (unlike ordinary liquid crystal material), and the other is photocurable material in which the other end of RM molecule can be crosslinked with liquid crystal (referred to as ordinary liquid crystal material). In the various embodiments of the present invention, the liquid crystals mentioned are ordinary liquid crystal materials unless otherwise specified, and do not have photocurable properties by themselves.

Embodiment 1

As shown in FIG. 1 , a 3D display according to an embodiment of the present invention includes: a display panel 1; an upper polarizing plate 2 disposed on a light emitting surface of the display panel 1; and a phase difference plate 7 formed on the upper polarizing plate 2 The opposite side of the display panel 1, wherein the phase difference plate 7 includes at least the exposure light according to the illumination a directional direction and cured RM material, and comprising a plurality of strip-like regions of equal width arranged in columns or rows, each two adjacent strip regions having different orientation directions, that is, every two adjacent strips The orientation of the long axis direction (director) of the RM material molecules in the region is different. Here, each stripe region corresponds to at least one row or a column of sub-pixels 8 of the display panel 1 (only the schematic diagram in the figure does not represent the actual structure of the sub-pixels), for example, facing the phase difference plate 7 twice. The sub-regional exposure is synchronized to complete the orientation of the corresponding region and the cured retardation plate 7. Of course, in the case where the accuracy requirement is not high, each stripe region does not need to be completely opposite to at least one row or column of sub-pixels 8 of the display panel 1.

Alternatively, for a display panel of a polarized glasses type 3D display, odd-numbered rows/odd-numbered columns of pixels display a left-eye image, and even-numbered/even-numbered columns display a right-eye image; or, odd-numbered rows/odd-numbered columns of pixels display a right-eye image, even-numbered rows The /even column displays the left eye image, and accordingly, the odd or odd column strip regions of the phase difference plate have the same orientation direction and the even rows or even columns have the same orientation direction to adjust the pixels displaying the left eye image and the right eye image, respectively. The direction of polarization of the exiting light makes it different.

In the embodiment of the present invention, the phase difference plate which completes the orientation and solidification of the corresponding region after two sub-regional exposure synchronizations can be realized by using the RM material. Illustratively, the phase difference plate is a phase difference plate in which the reactive monomer RM material is aligned and solidified by two sub-region exposures simultaneously, or the phase difference plate is a photosensitive monomer and a reactive monomer RM material. The mixture is subjected to two sub-regional exposures to simultaneously complete the orientation of the corresponding region and the cured phase difference plate, or the phase difference plate is a mixture of the photosensitive monomer and the reactive monomer RM material and the liquid crystal through two sub-regional exposures to complete the corresponding region. Oriented and cured phase difference plate. Among them, the photosensitive monomer includes a cinnamate, an azo dye or the like which selectively aligns polarized light.

The 3D display provided by the embodiment of the present invention directly produces a phase difference plate made of RM material by using an exposure process, and the exposure device with high precision is used, and the alignment precision of the exposure device is generally less than 2 um, The bit precision is much higher; and the bonding layer is directly integrated on the display panel without the bonding layer, which inevitably increases the display brightness; in addition, the light-emitting point brought by the bonding layer is avoided (the red, green and blue light on the display substrate is displayed) The distance from the point) to the phase difference plate is increased; therefore, the manufacturing process can be simplified, the alignment accuracy of the phase difference plate and the sub-pixels can be improved, the viewing angle can be increased, and the display brightness can be increased.

Of course, the display panel of the 3D display provided herein includes not only a liquid crystal display panel but also other forms of display panels such as an organic light emitting diode display panel and electronic paper. Moreover, the specific structure of the display panel in the embodiment of the present invention may employ a common structure known in the art, for the sake of brevity, This embodiment of the invention does not describe this in detail. Of course, according to actual design requirements, the structure of the display panel can be adjusted accordingly. For example, if the display panel 1 is a liquid crystal panel, a lower polarizing plate needs to be disposed on the side opposite to the backlight.

It should be noted that the angle between the odd rows or columns of the strip regions and the orientation direction of the even rows or columns is 45° - 135°. Or preferably, the angle between the odd rows or columns of the strip regions and the orientation direction of the even rows or columns is 90°; thus, as long as the polarization directions of the upper polarizing plate 2, the phase difference plate 7 and the polarizing glasses are matched, 3D effects can be achieved, easy to manufacture; and will have better 3D visual effects.

Embodiments of the present invention provide a 3D display system including the 3D display shown in Fig. 1 above and a 3D view mirror worn by a user, that is, between a human eye and a 3D display. The left and right eyeglasses in the 3D eyepiece are respectively used to receive polarized light of different polarization directions output by the 3D display. The display system can be a mobile phone, a notebook, a television, a navigator or the like.

The display system provided by the embodiment of the present invention uses the above-mentioned structure as shown in FIG. 1 , so that the manufacturing process can be simplified, the alignment precision of the phase difference plate and the sub-pixels can be improved, the viewing angle can be increased, and the display brightness can be increased. .

Embodiment 2

The embodiment of the present invention provides another display, including: a display panel 1 including an array substrate and a color filter substrate disposed on the cartridge; and a liquid crystal layer interposed between the array substrate and the color filter substrate; 2. The light-emitting side of the liquid crystal layer is disposed on the light-emitting side of the liquid crystal layer, and the phase difference plate 7 is formed on the light-emitting side of the base substrate of the color filter substrate. The display panel 1 is a liquid crystal panel. As an example, as shown in FIG. 2a, the upper polarizing plate 2 is disposed between the base substrate 4 (such as a glass substrate or a plastic substrate) of the color filter substrate 3 of the liquid crystal panel and the colored resin layer 5, or as shown in FIG. 2b. The upper polarizing plate 2 is disposed between the color filter substrate 3 of the liquid crystal panel and the liquid crystal layer 6.

Alternatively, the upper polarizing plate 2 of the embodiment of the present invention may be disposed at other positions as long as the light emitted from the liquid crystal layer 6 passes through the upper polarizing plate 2 before entering the phase difference 7.

A phase difference plate 7 is formed on a side of the base substrate 4 of the color filter substrate 3 of the liquid crystal panel opposite to the liquid crystal layer 6, and the phase difference plate includes at least an RM material which is oriented according to the direction of the exposure light to be irradiated and is cured. A plurality of strip-shaped regions of equal width arranged in columns or rows, each of the two adjacent strip-shaped regions having different orientation directions, each strip-shaped region corresponding to at least one row or column of sub-pixels 8 of the display panel 1, for example , right, the phase difference plate 7 completes the corresponding area after two sub-regional exposure synchronizations. The orientation of the domains is aligned with the cured phase difference plate 7. Of course, in the case where the accuracy requirement is not high, each stripe region does not need to be completely opposite to at least one row or column of sub-pixels 8 of the display panel 1.

Here, it should be noted that the orientation direction of the strip regions refers to the orientation direction of the long axis direction (director) of the RM material molecules included therein.

In the practice of the present invention, the phase difference plate which completes the orientation and solidification of the corresponding region by two sub-regional exposures simultaneously can be realized by using the RM material. Illustratively, the phase difference plate is a phase difference plate in which the reactive monomer RM material is aligned and solidified by two sub-region exposures simultaneously, or the phase difference plate is a photosensitive monomer and a reactive monomer RM material. The mixture is subjected to two sub-regional exposures to simultaneously complete the orientation of the corresponding region and the cured phase difference plate, or the phase difference plate is a mixture of the photosensitive monomer and the reactive monomer RM material and the liquid crystal through two sub-regional exposures to complete the corresponding region. Oriented and cured phase difference plate. Among them, the photosensitive monomer includes a cinnamate, an azo dye or the like which selectively aligns polarized light.

It should be noted that the specific structure of the display panel in the embodiment of the present invention may be a common structure well known in the art, and the embodiment of the present invention is not described in detail for the sake of brevity. Of course, according to the actual design needs, the structure of the display panel can be adjusted accordingly.

The 3D display provided by the embodiment of the present invention directly produces a phase difference plate made of RM material by using an exposure process, and the exposure device with high precision is used, and the alignment precision of the exposure device is generally less than 2 um, The bit precision is much higher; and the bonding layer is directly integrated on the display panel without the bonding layer, which inevitably increases the display brightness; in addition, the light-emitting point brought by the bonding layer is avoided (the red, green and blue light on the display substrate is displayed) The distance from the point) to the phase difference plate is increased; therefore, the manufacturing process can be simplified, the alignment accuracy of the phase difference plate and the sub-pixels can be improved, the viewing angle can be increased, and the display brightness can be increased. At the same time, due to the built-in structure of the upper polarizing plate, the influence of the upper polarizing plate on the exposure effect during the phase difference plate manufacturing process can be avoided.

It should be noted that the angle between the odd rows or columns of the strip regions and the orientation direction of the even rows or columns is 45° - 135°. Alternatively, preferably, the odd-numbered rows or columns of the strip-like regions are at an angle of 90° to the orientation direction of the even rows or columns. Thus, the 3D effect can be achieved as long as the polarization directions of the upper polarizing plate 2, the phase difference plate 7, and the polarizing glasses are matched.

Embodiments of the present invention provide a 3D display system including the 3D display shown in FIG. 2 above and a 3D view mirror worn by a user, that is, between a human eye and a 3D display. Wherein, the left and right glasses in the 3D eyepiece are respectively used to receive polarizations of different polarization directions output by the 3D display Light. The display system can be a mobile phone, a notebook, a television, a navigator or the like.

The display system provided by the embodiment of the present invention uses the above-mentioned structure as shown in FIG. 2, so that the manufacturing process can be simplified, the alignment accuracy of the phase difference plate and the sub-pixels can be improved, the viewing angle can be increased, and the display brightness can be increased. .

Embodiment 3

Embodiment 3 of the present invention provides a method for fabricating a 3D display, including the following steps:

S301a, coating a mixture of a photosensitive monomer and a reactive monomer RM material or a mixture of a photosensitive monomer and a RM material and a liquid crystal on an upper polarizing plate disposed on a light-emitting surface of the prepared display panel of the 3D display to form a mixture layer .

Alternatively, a reactive monomer RM material may be coated on the upper polarizing plate disposed on the light-emitting surface of the prepared display panel of the 3D display, where the reactive monomer RM material is a material capable of being oriented according to exposure light. .

Wherein, the mass of the photosensitive monomer in the mixture layer accounts for 1% to 20% of the mass of the mixture of the photosensitive monomer and the reactive monomer RM material; or preferably, the mass of the photosensitive monomer in the mixture layer accounts for the photosensitive monomer 5% to 10% by mass of the mixture with the reactive monomer RM material; the preferred case is more conducive to the sufficient reaction of the materials provided in the mixture, to avoid the insufficient or residual material of the components of the mixture, thereby achieving use Fewer materials produce a better display. The RM material is a photocurable liquid crystal material in which one end of the molecule can be crosslinked with a photosensitive monomer. The photosensitive monomer includes a cinnamate, an azo dye or the like which selectively aligns polarized light.

Optionally, the mass of the photosensitive monomer in the mixture layer accounts for 1% to 20% of the mass of the mixture of the photosensitive monomer and the RM material and the liquid crystal; or preferably, the mass of the photosensitive monomer in the mixture layer accounts for the photosensitive monomer and The mass of the mixture of RM material and liquid crystal is 5% to 10%. Further, the mass of the RM material in the mixture layer accounts for 1% to 40% of the mass of the RM material and the liquid crystal, wherein the RM material is a photocuring in which one end of the molecule can be crosslinked with the photosensitive monomer and the other end can be crosslinked with the liquid crystal molecule. Material; or preferably, the mass of the RM material in the mixture layer accounts for 10% to 30% of the mass of the RM material and the liquid crystal, wherein the RM material has one end of the molecule cross-linkable with the photosensitive monomer and the other end cross-linkable with the liquid crystal molecule. Light curing material. The same, preferred case is more conducive to adequate reaction of the materials provided in the mixture, avoiding insufficient or residual material of the components of the mixture, thereby achieving a better display with less material. The photosensitive monomer includes a cinnamate, an azo dye, or the like which selectively aligns polarized light. S302a, performing a first mask exposure on the mixture layer to form strip-like regions of equal width or equally spaced odd rows or columns of phase difference plates.

The light-transmitting area of the mask used in step S302a corresponds to the strip-shaped area of the odd-numbered rows or columns to be formed.

S303a, performing a second mask exposure on the mixture layer to form strip-like regions of even-numbered rows or columns of strip-like width of the phase difference plate.

The opaque area of the mask used in step S303a corresponds to the strip-shaped area of the odd-numbered rows or columns that have been formed in step S302a, and the light-transmitting area corresponds to the strip-shaped area of the even-numbered rows or columns to be formed.

Wherein, in the steps S302a and S303a, the strip-shaped regions formed are corresponding, and the strip-shaped regions formed in the row in the step S302a are also formed into strip-shaped regions in the step S303a, or the strip-shaped regions are formed in the step S302a. Then, in the step S303a, the strip-shaped regions in the column are also formed, that is, the strip-shaped regions which are simultaneously "rows" or the strip-shaped regions which are simultaneously "columns". Further, after the steps S302a and S303a are completed, the orientation directions of each two adjacent strip regions are different. Further, each stripe region formed is corresponding to at least one row or column of sub-pixels of the display panel, for example, facing to achieve accurate alignment of the phase difference plate and the sub-pixel, thereby improving the 3D display effect.

Alternatively, an embodiment of the present invention provides a method of fabricating another 3D display, using the following steps:

S301b, coating a mixture of a photosensitive monomer and a reactive monomer RM material or a mixture of a photosensitive monomer and a RM material and a liquid crystal on an upper polarizing plate disposed on a light-emitting surface of the prepared display panel of the 3D display to form a mixture layer .

Wherein, the mass of the photosensitive monomer in the mixture layer accounts for 1% to 20% of the mass of the mixture of the photosensitive monomer and the reactive monomer RM material; or preferably, the mass of the photosensitive monomer in the mixture layer accounts for the photosensitive monomer 5% to 10% by mass of the mixture with the reactive monomer RM material. Of course, the preferred case is also more advantageous for the sufficient reaction of the materials provided in the mixture to avoid insufficient or residual material of the components of the mixture, thereby achieving a better display effect using less material. The RM material is a photocurable liquid crystal material in which one end of the molecule can be crosslinked with a photosensitive monomer. Photosensitive monomer including cinnamic acid A substance that selectively orients polarized light, such as a salt or an azo dye.

Optionally, the mass of the photosensitive monomer in the mixture layer accounts for 1% to 20% of the mass of the mixture of the photosensitive monomer and the RM material and the liquid crystal; or preferably, the mass of the photosensitive monomer in the mixture layer accounts for the photosensitive monomer and The mass of the mixture of RM material and liquid crystal is 5% to 10%. Further, the mass of the RM material in the mixture layer accounts for 1% to 40% of the mass of the RM material and the liquid crystal, wherein the RM material is a photocuring in which one end of the molecule can be crosslinked with the photosensitive monomer and the other end can be crosslinked with the liquid crystal molecule. Material; or preferably, the mass of the RM material in the mixture layer accounts for 10% to 30% of the mass of the RM material and the liquid crystal, wherein the RM material has one end of the molecule cross-linkable with the photosensitive monomer and the other end cross-linkable with the liquid crystal molecule. Light curing material. The same preferred case is also more advantageous for the sufficient reaction of the materials provided in the mixture to avoid insufficient or residual material of the components of the mixture, thereby achieving a better display with less material. The photosensitive monomer includes a cinnamate, an azo dye or the like which selectively aligns polarized light.

S302b, performing a first mask exposure on the mixture layer to form strip-like regions of even-numbered rows or columns of equal width and equal intervals of the phase difference plate.

The light-transmitting area of the mask used in step S302b corresponds to the strip-shaped area of the even-numbered rows or columns to be formed.

S303b, performing a second mask exposure on the mixture layer to form strip-like regions of odd-numbered rows or columns of strip-like width of the phase difference plate.

The opaque area of the mask used in step S303b corresponds to the strip-shaped area of the even-numbered rows or columns which have been formed in step SS302b, and the light-transmitting area corresponds to the strip-shaped area of the odd-numbered rows or columns to be formed.

Wherein, in the steps S302b and S303b, the strip regions formed are corresponding, the strip regions formed in the row in step S302b are also formed into strips in the step S303b, or the strip regions in the step S302b are formed. Then, in the step S303b, a strip-shaped area in a row is formed, that is, a strip-shaped area which is a "row" at the same time or a strip-shaped area which becomes a "column" at the same time. And, after steps S302b and S303b are completed, the orientation directions of each two adjacent strip regions are different. Further, each stripe region formed is corresponding to at least one row or column of sub-pixels of the display panel, for example, facing to achieve accurate alignment of the phase difference plate and the sub-pixel, thereby improving the 3D display effect.

It should be noted that, as shown in FIGS. 3 and 4, the process of forming a phase difference plate by mask exposure of the mixture layer in steps S302a and S303a, the arrow in the figure indicates the light used in the mask exposure process. The illumination direction is exposed through the mask to the retardation plate below it, wherein the angle between the first mask exposure and the second mask exposure is 45° - 135°; or preferably, the first mask exposure The angle of the light exposed to the second mask is 90. . The process in which the steps S302b and S303b expose the mixture layer to form the phase difference plate is similar to the steps S302a and S303a, and is not described herein again.

It should be noted that the manufacturing method of the 3D display according to the embodiment of the present invention only describes the method of forming the phase difference plate after the display panel and the upper polarizing plate are formed in detail, and for the formation of the display panel and the upper polarizing plate, Any method known in the art is not described in detail herein.

The manufacturing method of the 3D display provided by the embodiment of the invention directly uses the exposure process to directly fabricate the phase difference plate made of the RM material, and the exposure device with high precision is used, and the alignment precision of the exposure device is generally below 2 um. The alignment accuracy is much higher; and the bonding layer is directly integrated on the display panel without the bonding layer, which inevitably increases the display brightness; in addition, the light-emitting point brought by the bonding layer is avoided (the red and green on the display substrate are displayed) The distance from the blue light-emitting point to the phase difference plate is increased; therefore, the manufacturing process can be simplified, the alignment accuracy of the phase difference plate and the sub-pixels can be improved, the viewing angle can be increased, and the display brightness can be increased.

Embodiment 4

Another embodiment of the present invention provides a method for fabricating a 3D display. In this embodiment, the display panel of the 3D display is a liquid crystal display panel, and includes the following steps:

S601a, when forming a color filter substrate of the display panel, forming an upper polarizing plate on the base substrate of the color filter substrate, and then forming a color resin layer on the upper polarizing plate, such that the upper polarizing plate is disposed on the color film substrate Between the base substrate and the color resin layer; or, when forming the color filter substrate of the display panel, the upper polarizing plate is formed on the base substrate on which the color filter substrate such as the color filter and the counter electrode are sequentially formed, and thus, The polarizing plate is disposed between the color filter substrate and the liquid crystal layer.

S602a, the color film substrate and the array substrate are opposite to the box, and a liquid crystal layer is interposed therebetween.

S603a, coating a mixture of a photosensitive monomer and a reactive monomer RM material or a mixture of a photosensitive monomer and an RM material and a liquid crystal on the base substrate on the color filter substrate to form a mixture layer.

Alternatively, a reactive monomer RM material may be coated on the upper polarizing plate disposed on the light-emitting surface of the prepared display panel of the 3D display, where the reactive monomer RM material is capable of exposure. A material in which light is oriented.

Wherein, the mass of the photosensitive monomer in the mixture layer accounts for 1% to 20% of the mass of the mixture of the photosensitive monomer and the reactive monomer RM material; or preferably, the mass of the photosensitive monomer in the mixture layer accounts for the photosensitive monomer 5% to 10% by mass of the mixture with the reactive monomer RM material; of course, the preferred case is more favorable for the sufficient reaction of the materials provided in the mixture to avoid insufficient or residual material of the components of the mixture. Achieve better display with less material. The RM material is a photocurable liquid crystal material in which one end of the molecule can be crosslinked with a photosensitive monomer. The photosensitive monomer includes a cinnamate, an azo dye or the like which selectively aligns polarized light.

S604a, performing the first mask exposure on the mixture layer to form strip-like regions of odd-numbered rows or columns of equal width and equally spaced intervals of the phase difference plate.

The light-transmitting area of the mask used in step S604a corresponds to the strip-shaped area of the odd-numbered rows or columns to be formed.

S605a, the mixture layer is subjected to a second mask exposure to form strip-like regions of even-numbered rows or columns of strip-like equal width intervals of the phase difference plate.

The opaque area of the mask used in step S605a corresponds to the strip-shaped area of the odd-numbered rows or columns that have been formed in step S604a, and the light-transmitting area corresponds to the strip-shaped area of the even-numbered rows or columns to be formed.

Wherein, in the steps S604a and S605a, the strip-shaped regions formed are corresponding, and the strip-shaped regions formed in a row in step S604a are also formed into strips in a row in step S605a, or steps The strip-shaped regions formed in the row in S604a are also formed into strip-shaped regions in the step S605a, that is, strip-shaped regions which are simultaneously "rows" or strip-shaped regions which are simultaneously "columns". And, after steps S603a and S604a are completed, the orientation directions of each two adjacent strip regions are different. Further, each of the strip regions formed is corresponding to at least one row or column of sub-pixels of the display panel, for example, facing to achieve accurate alignment of the phase difference plate and the sub-pixels, thereby improving the 3D display effect.

Alternatively, another embodiment of the present invention provides a method for fabricating a 3D display, using the following steps

S601b, when forming a color filter substrate of the display panel, forming an upper polarizing plate on the base substrate of the color filter substrate, and then forming a color resin layer on the upper polarizing plate, such that the upper polarizing plate is disposed on the lining of the color film substrate Between the base substrate and the colored resin layer; or, when forming the color filter substrate of the display panel, the upper polarizing plate is formed on the base substrate on which the color filter substrate such as the color filter and the counter electrode are sequentially formed, and thus, The polarizing plate is disposed between the color filter substrate and the liquid crystal layer.

S602b, the color film substrate and the array substrate are paired with a liquid crystal layer interposed therebetween.

S603b, coating a mixture of a photosensitive monomer and a reactive monomer RM material or a mixture of the photosensitive monomer and the RM material and the liquid crystal on the base substrate on the color filter substrate to form a mixture layer.

Optionally, the mass of the photosensitive monomer in the mixture layer accounts for 1% to 20% of the mass of the mixture of the photosensitive monomer and the RM material and the liquid crystal; or preferably, the mass of the photosensitive monomer in the mixture layer accounts for the photosensitive monomer and The mass of the mixture of RM material and liquid crystal is 5% to 10%. Further, the mass of the RM material in the mixture layer accounts for 1% to 40% of the mass of the RM material and the liquid crystal, wherein the RM material is a photocuring in which one end of the molecule can be crosslinked with the photosensitive monomer and the other end can be crosslinked with the liquid crystal molecule. Material; or excellent The quality of the RM material in the mixture layer is 10% to 30% of the mass of the RM material and the liquid crystal, wherein the RM material is a photocurable material in which one end of the molecule can be crosslinked with the photosensitive monomer and the other end can be crosslinked with the liquid crystal molecule. . The same preferred case is also more advantageous for the sufficient reaction of the materials provided in the mixture to avoid insufficient or residual material of the components of the mixture, thereby achieving a better display with less material. The photosensitive monomer includes a cinnamate, an azo dye, or the like which selectively aligns polarized light.

S604b, performing a first mask exposure on the mixture layer to form strip-like regions of even-numbered rows or columns of strip-like width intervals of the phase difference plate.

The light-transmissive area of the mask used in step S604b corresponds to the strip-shaped area of the even-numbered rows or columns to be formed.

S605b, performing a second mask exposure on the mixture layer to form strip-like regions of odd-numbered rows or columns of strip-like width intervals of the phase difference plate.

The opaque area of the mask used in step S605b corresponds to the strip-shaped area of the even-numbered rows or columns that have been formed in step S604b, and the light-transmitting area corresponds to the strip-shaped area of the odd-numbered rows or columns to be formed.

Wherein, in the steps S604b and S605b, the strip-shaped regions formed are corresponding, and the strip-shaped regions formed in the row in the step S604b are also formed into strip-like regions in the step S605b, or the strip-shaped regions formed in the row in the step S604b Then, in the step S605b, the strip-shaped regions in the column are also formed, that is, the strip-shaped regions which are simultaneously "rows" or the strip-shaped regions which are simultaneously "columns". And, after steps S604b and S605b are completed, the orientation directions of each two adjacent strip regions are different. Further, each stripe region formed is corresponding to at least one row or column of sub-pixels of the display panel, for example, facing to achieve accurate alignment of the phase difference plate and the sub-pixel, thereby improving the 3D display effect.

Steps S604a and S605a, or S604b and S605b, the process of exposing the mixture layer to form the phase difference plate is similar to the steps S302a and S303a shown in FIGS. 4, 5, or S302b and S303b, for exposing the mixture layer to form a phase difference plate, here No longer. The angle between the first mask exposure and the second mask exposure is 45° - 135°; or preferably, the angle between the first mask exposure and the second mask exposure is 90. . In this way, as long as the polarization directions of the upper polarizing plate, the phase difference plate and the polarizing glasses of the display panel are matched, the 3D effect can be realized, which is convenient for manufacturing; Has a better 3D visual effect.

It should be noted that the method for fabricating the 3D display according to the embodiment of the present invention only describes the method of forming the phase difference plate in detail. For the formation of other components of the display, any method known in the art may be used. This is described in detail.

The 3D display panel manufacturing method provided by the embodiment of the invention directly produces a phase difference plate made of RM material by using an exposure process, and the exposure device with high precision is used, and the alignment precision of the exposure device is generally below 2 um. The alignment accuracy is much higher; and the bonding layer is directly integrated on the display panel without the bonding layer, which inevitably increases the display brightness; in addition, the light-emitting point brought by the bonding layer is avoided (the red and green on the display substrate are displayed) The distance from the blue light-emitting point to the phase difference plate is increased; therefore, the manufacturing process can be simplified, the alignment accuracy of the phase difference plate and the sub-pixels can be improved, the viewing angle can be increased, and the display brightness can be increased. At the same time, since the upper polarizing plate uses the built-in structure under the upper substrate, the influence of the upper polarizing plate on the exposure effect during the phase difference plate manufacturing process can be avoided.

A person skilled in the art can understand that all or part of the steps of the method for manufacturing the 3D display of the above embodiment can be completed by implementing all or part of the steps of the program instruction control hardware, and the foregoing program can be stored in the computer readable storage medium. The program, when executed, performs all or part of the steps of the method of manufacturing the 3D display including the above embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Claim

1. A 3D display comprising:

Display panel

An upper polarizing plate disposed on a light emitting surface of the display panel;

a phase difference plate formed on a side of the upper polarizing plate opposite to the display panel, the phase difference plate including at least a reactive monomer RM material oriented according to the direction of the exposed exposure light and being solidified, and comprising a column Or a plurality of strip-shaped regions of equal width arranged in a row, each of the two adjacent strip-shaped regions having different orientation directions, each of the strip-shaped regions corresponding to at least one row or column of sub-pixels of the display panel .

2. The 3D display according to claim 1, wherein the phase difference plate is a phase difference plate that performs alignment and curing of the corresponding region by two sub-regional exposure synchronizations.

3. The 3D display according to claim 1, wherein the phase difference plate further comprises a photosensitive monomer, wherein the phase difference plate is synchronized with the mixture of the photosensitive monomer and the reactive monomer RM material by two sub-regional exposures. The orientation of the corresponding area is the retardation plate of the solidification.

4. The 3D display according to claim 1, wherein the phase difference plate further comprises a photosensitive monomer and a liquid crystal, and the phase difference plate is divided into two times by a mixture of the photosensitive monomer and the reactive monomer RM material and the liquid crystal. The area exposure synchronizes the orientation of the corresponding area with the cured phase difference plate.

The 3D display according to claim 1, wherein an odd-numbered row or column of the strip-shaped region and an orientation direction of the even-numbered rows or columns are 45° - 135°.

6. The 3D display according to claim 1, wherein an odd-numbered row or column of the strip-shaped region forms an angle of 90 with an orientation direction of the even-numbered rows or columns.

7. A 3D display according to claim 3 or 4, wherein the photosensitive monomer comprises a substance that selectively orients the polarized light.

8. The 3D display according to claim 7, wherein the substance selectively oriented to polarized light is a cinnamate or an azo dye.

9. A 3D display comprising:

The display panel includes an array substrate and a color filter substrate disposed on the cartridge, and a liquid crystal layer interposed between the array substrate and the color filter substrate;

An upper polarizing plate is disposed on a light emitting side of the liquid crystal layer; a phase difference plate formed on a light exiting side of the base substrate of the color filter substrate, the phase difference plate including at least a reactive monomer RM material oriented according to the direction of the exposed exposure light and being solidified, and comprising a column or a plurality of strip-shaped regions of equal width arranged in rows, each of the two adjacent strip-shaped regions having different orientation directions, each of the strip-shaped regions corresponding to at least one row or column of sub-pixels of the display panel, The phase difference plate is a phase difference plate that performs alignment and curing of the corresponding regions by two sub-regions of exposure synchronization.

The 3D display according to claim 9, wherein the upper polarizing plate is disposed between the base substrate of the color filter substrate of the display panel and the color resin layer, or is disposed on the color filter substrate of the display panel. Between the liquid crystal layer and the layer.

11. A method of fabricating a 3D display, comprising: coating a layer comprising a mixture of a photosensitive monomer and a reactive monomer RM material to form a mixture; and step 2, performing a first mask exposure on the mixture layer to form a strip-like region of an equal-width or equally spaced odd-numbered row or column/even-numbered row or column of the phase difference plate;

Step 3, performing a second mask exposure on the mixture layer to form strip-like equal-length rows of the phase difference plate or strip-like regions of odd-numbered rows or columns, wherein each two adjacent strips The orientation direction i or the orientation direction is different,

Wherein one end of the molecule of the reactive monomer RM material is crosslinked with the photosensitive monomer.

12. The method according to claim 11, wherein in the step 2, the transparent region of the mask used for the first mask exposure corresponds to an odd-numbered row or an even-numbered row or column of strips to be formed. a region, and in step 3, the opaque region of the mask used for the second mask exposure corresponds to the strip regions of odd rows or columns/even rows or columns that have been formed in step 2 to transmit light The regions correspond to strip regions of even rows or columns/odd rows or columns that will be formed.

13. The method according to claim 11, wherein the mass of the photosensitive monomer in the mixture layer accounts for the mass of the mixture of the photosensitive monomer and the reactive monomer RM material.

1%~20%.

14. The method according to claim 11, wherein the photosensitive monomer has a mass of 5% to 10% by mass of the mixture of the photosensitive monomer and the reactive monomer RM material in the mixture layer.

15. The method of claim 11 further comprising a liquid crystal in the mixture, The other end of the molecule of the reactive monomer RM material is crosslinked with the liquid crystal molecules, the mass of the RM material accounts for 1% to 40% of the mass of the RM material and the liquid crystal, and the quality of the photosensitive monomer accounts for the photosensitive The mass of the mixture of monomer and RM material and liquid crystal is 1% to 20%.

16. The method according to claim 15, wherein the photosensitive monomer has a mass of 5% to 10% by mass of the photosensitive monomer and a mixture of the RM material and the liquid crystal in the mixture layer.

17. The method according to claim 11, wherein liquid crystal is further included in the mixture, and the other end of the molecule of the reactive monomer RM material is crosslinked with liquid crystal molecules, and the mass of the RM material in the mixture layer It accounts for 10% to 30% of the mass of the RM material and the liquid crystal, and the mass of the photosensitive monomer accounts for 1% to 20% of the mass of the mixture of the photosensitive monomer and the RM material and the liquid crystal.

18. The method according to claim 17, wherein the photosensitive monomer has a mass of 5% to 10% by mass of the mixture of the photosensitive monomer and the RM material and the liquid crystal in the mixture layer.

19. The method according to claim 11, wherein the angle between the first mask exposure and the second mask exposure is 45° - 135°.

20. The method according to claim 11, wherein the angle between the first mask exposure and the second mask exposure is 90°.