TWI510812B - Display apparatus set for three-dimensional image - Google Patents

Description

3D image display device group

The present invention relates to a display device group that performs 3D video images, which has the advantage of providing a thin and light display and capable of performing clear 3D images that have eliminated the ghost effect.

When viewing the display, the viewer can perceive the 3D depth both physiologically and empirically. In general, the 3D image is performed based on binocular parallax, which explains why the viewer can feel at a very close distance. The basic principle of 3D depth.

With binocular parallax, two different images are captured separately for the left eye and the right eye using at least two cameras, and the captured images are displayed separately to the left and right eyes, and the images are then combined in the brain to provide 3D depth perception.

3D imaging technology may or may not use polarized glasses, and examples of techniques using glasses include (1) an anglyph method using two lenses having different colors of glasses, and (2) using two lenses having The polarization method of the glasses of different polarization directions, and (3) the time-sharing method of using shutter glasses in synchronization with the screen refresh rate.

Many displays use a phase retarder to perform a 3D image. The phase retardation film can include a glass substrate, an alignment film coated on the glass substrate, and a coating in the alignment. Liquid crystal layer on the film, the liquid crystal layer Is a polymer layer formed by illuminating a photoreactive liquid crystal arranged by an alignment layer (ie, ultraviolet light, etc.), however, when a glass substrate is used, a roll-to-roll process cannot be applied (roll -to-roll process) to fabricate the phase retardation film.

There has been an attempt to replace the glass substrate with a polymer base film, however, the polymer base film has a larger in-plane retardation than the glass substrate, and thus, problems arise. Yes, the light emitted by the display will have an elliptical polarization instead of a circular polarization. When the emitted light is elliptically polarized, the polarization of the left and right eyes cannot be completely separated. Therefore, crosstalk is caused. ) This parasitic effect occurs.

The present invention provides a 3D image display device group capable of executing a clear 3D image by eliminating parasitic effects caused by crosstalk.

The present invention also provides a thin and light 3D image display device set.

A display device group for performing 3D image, comprising: an image display having a phase retardation pattern formed on a polymer base film, wherein a phase retardation pattern formed on the polymer base film is set a position through which light from a polarizer of a polarizing plate passes; and a pair of polarized lenses for receiving an image from the image display and providing a viewer 3D image, wherein the image display, or the image display One of the polarizing lenses includes a first compensation film disposed at a position through which light having passed through a phase retardation pattern formed on the polymer base film passes; and wherein one of the polymer base films The difference between the in-plane retardation and the in-plane retardation of the first compensation film does not exceed 50 nm.

2. The display device set according to item 1, wherein the image display is Light that has been passed through the polarizer passes through the polymer base film, and light that has passed through the polymer base film passes through the phase retardation pattern.

3. The display device set according to item 1, wherein the image display is constructed such that light that has passed through the polarizer passes through a phase retardation pattern, and light that has passed through the phase retardation pattern passes through the polymer base film. .

4. The display device set according to item 1, wherein the difference between the in-plane retardation of the polymer base film and the in-plane retardation of the first compensation film does not exceed 30 nm.

5. The display device set according to item 1, wherein a slow axis of the first compensation film is at a right angle to a slow axis of the polymer base film.

6. The display device set according to item 1, wherein each of the in-plane retardation of the polymer base film and the first compensation film does not exceed 5 nm.

7. The display device set according to item 1, wherein the first compensation film and the polymer base film are independently made of one selected from the group consisting of polyolefin, polyester. , cellulose, polycarbonate, acrylic acid, styrene, vinyl chloride, amide, sulfone, polyether sulfonamide, polyetheretherketone, polyphenylene sulfide, vinyl alcohol , vinylidene chloride, vinyl butyral, allyl, polyoxymethylene, and epoxy.

8. The display device set according to Item 1, wherein the pair of polarized lenses comprises: the first compensation film; a second compensation film laminated on the first compensation film and configured to pass The polarized light of the first compensation film is converted into linear polarized light; and a polarizer is laminated on the second compensation film.

9. The display device set according to item 1, wherein the pair of polarized lens packages a second compensation film configured to convert polarized light emitted from the image display into linear polarized light; the first compensation film is laminated on the second compensation film; and a polarizer laminated on the Above the first compensation film.

10. The display device set according to item 9, wherein the first compensation film converts the polarized light of the light that has passed through the second compensation film but is not completely linearly polarized into linearly polarized light.

According to the display device group of the present invention, since the present invention includes a phase retardation film formed on a polymer base film, it is possible to realize a thin and light image display.

Moreover, according to the present invention, it is also possible to provide a clear 3D image in which parasitic effects due to crosstalk have been eliminated.

10, 11‧‧‧ Transmission axis of polarizer on polarizing plate

20, 21‧‧‧ Slow axis of phase delay pattern

30, 31‧‧‧ Slow axis of polymer base film

40, 41‧‧‧ The slow axis of the first compensation film

50, 51‧‧‧ The slow axis of the second compensation film

60, 61‧‧‧ Transmission axes of polarizers for polarized lenses

1 is a cross-sectional view showing a 3D image display device group according to Example 1 of the present invention; and FIG. 2 is a schematic view for explaining a principle of providing a 3D image using a 3D image display device group according to Example 1 of the present invention; Fig. 3 is a cross-sectional view showing a 3D image display device group according to Example 2 of the present invention; Fig. 4 is a view for explaining briefly the principle of providing a 3D image using the 3D image display device group according to Example 2 of the present invention; Figure 5 is a cross-sectional view of a 3D image display device group according to Example 3 of the present invention; and Figure 6 is a simplified explanation of the principle of providing a 3D image using the 3D image display device group according to Example 3 of the present invention. Figure 7 is a cross-sectional view of a 3D image display device set according to Example 4 of the present invention; Figure 8 is a brief explanation provided by a 3D image display device group according to Example 4 of the present invention. A schematic diagram of a 3D image display device; FIG. 9 is a cross-sectional view of a 3D image display device group according to Example 5 of the present invention; FIG. 10 is a simplified explanation of a 3D image display device group using Example 5 according to the present invention. A diagram providing a principle of a 3D image; FIG. 11 is a cross-sectional view showing a 3D image display device group according to Example 6 of the present invention; and FIG. 12 is a simplified explanation of a 3D image display device using Example 6 according to the present invention. A set of diagrams showing the principle of a 3D image; FIG. 13 is a cross-sectional view of a 3D image display device set according to Example 7 of the present invention; FIG. 14 is a simplified explanation showing a 3D image display using Example 7 according to the present invention. The device group provides a schematic diagram of the principle of the 3D image; FIG. 15 is a cross-sectional view of the 3D image display device group according to Example 8 of the present invention; and FIG. 16 is a brief explanation of the 3D image using the example 8 according to the present invention. A diagram showing the principle of a 3D image of a display device group; FIG. 17 is a cross-sectional view showing a 3D image display device group according to Example 9 of the present invention; and FIG. 18: a short explanation using 3D according to Example 9 of the present invention. Image display device group FIG. 19 is a cross-sectional view of a 3D image display device group according to Example 10 of the present invention; FIG. 20 is a simplified explanation of a 3D image display device using Example 10 according to the present invention. The group provides a schematic of the principle of 3D images.

The present invention relates to a display device group having the advantages of providing a thin and light display and capable of performing clear 3D images having eliminated parasitic effects, comprising: an image display having a phase retardation pattern formed on a polymer base film, wherein Phase formed on the polymer base film a delay pattern disposed at a position through which light from a polarizer of an upper polarizer passes; and a pair of polarized lenses for receiving images from the image display and providing a 3D image of the viewer, wherein the image display, or the The polarizing lens includes a first compensation film disposed at a position where light having passed through a phase retardation pattern formed on the polymer base film passes, and wherein an in-plane retardation of the polymer base film and the The difference between an in-plane retardation of the first compensation film is not more than 50 nm.

Next, the present invention will be described in more detail.

A display device group that performs 3D images includes an image display and a pair of polarized lenses.

The image display can include a light source (a backlight), a lower polarizing plate, a liquid crystal panel, and an upper polarizing plate. The image display is, for example, a liquid crystal display (LCD), and the image display includes a phase delay. The film, that is, a phase retardation pattern formed on a polymer base film, is disposed at a position where light passing through the polarizer of the upper polarizing plate can pass.

Since the light of the polarizer that has passed through the upper polarizing plate is constructed to pass through the phase retardation film, the phase retardation film is positioned to cross the light source from the light source to the upper polarizing plate, and The phase retardation film is laminated on the polarizer of the upper polarizing plate. If desired, a functional layer or film may be present between the phase retardation film and the polarizer of the upper polarizer.

Of course, it is also possible to laminate the phase retardation film on one side of the polarizer of the upper polarizing plate, and the polymer base film side of the phase retardation film may be bonded to one side of the polarizer (ie, the polarized light) The polymer base film and the phase retardation pattern are laminated in this order, or the phase retardation pattern side of the phase retardation film may be bonded to the bias One side of the optical device (i.e., the polarizer, the phase retardation pattern, and the polymer base film are laminated in this order). In other words, in the image display, light may sequentially pass through the polarizer, the polymer base film, and the phase retardation pattern, or may sequentially pass through the polarizer, the phase retardation pattern, and the polymer base film.

In the present invention, the phase retardation pattern is not formed on a glass substrate but on a polymer base film. It is generally considered that since the in-plane retardation usually does not exceed 5 nm and the axial direction thereof is chaotic, it is good to perform a clear 3D image using a glass substrate. However, the glass substrate has the disadvantage that it requires more than a certain amount of thickness and weight, and when it is bonded to the polarizer, the roll-to-roll process cannot be applied.

The polymer base film has a larger in-plane retardation (R0) than the glass substrate, and thus, for example, when the image display is constructed such that light sequentially passes through the polarizer, a phase retardation pattern, and In the case of a polymer base film, the polymer base film converts the polarized light of the light that has been circularly polarized by the phase retardation pattern into elliptically polarized light, and when the elliptically polarized light is set to be incident on the pair of polarized lenses, Parasitic effects are caused by the polarized light of the left and right eyes not being completely separated. The present invention avoids parasitic effects by a first compensation film which will be described next, because when the elliptically polarized light passes through the first compensation film, it is converted into circular polarization.

The in-plane retardation (R0) of the polymer base film is, for example, not less than 5 nm, and particularly, the in-plane retardation may be between 5 and 300 nm, preferably between 5 and 50 nm. between.

The first compensation film of the present invention is disposed at a position where light having passed through the phase retardation film (phase retardation pattern formed on the polymer base film) passes, and compensates for the phase retardation film The role of the phase difference modulation of the polymer base film. The first A compensation film is configured to span the phase retardation film from the light source and can be included in the image display, or the pair of polarized lenses.

In addition, the first compensation film does not need to be directly laminated on the phase retardation film (any phase retardation pattern side or the polymer base film side), and the first compensation film is included at a position in the image display, It is possible to include an additional film, or layer, between the phase retardation film and the first compensation film.

For example, the image display of the display device group of the present invention may include an upper polarizing plate having a polarizer protective film sequentially stacked by a light source, a polarizer, a phase retardation pattern, and a polymer base film. In addition, the pair of polarized lenses may include a first compensation film for compensating for the phase difference modulation of the polymer base film with respect to the right eye and the left eye of the viewer, and a second compensation film coupled to the first compensation film. It converts the polarized light (circular polarized light) of the light that has passed through the first compensation film into linearly polarized light, and a polarizer laminated on the second compensation film.

Alternatively, an image display of the display device set of the present invention may include an upper polarizing plate having a polarizer protective film, a polarizer, a polymer base film, and a phase retardation pattern, which are sequentially stacked by a light source. In addition, the pair of polarized lenses may include a first compensation film that compensates for the phase difference modulation of the polymer base film with respect to the right eye and the left eye of the viewer, and a second compensation film coupled to the first compensation film, It converts the polarized light (circular polarized light) of the light that has passed through the first compensation film into linearly polarized light, and a polarizer laminated on the second compensation film.

Alternatively, an image display of the display device set of the present invention may include an upper polarizing plate having a polarizer protective film laminated by a light source, a polarizer, a phase retardation pattern, a polymer base film, and a first compensation film, in addition, the pair of polarized lenses may include a second compensation film that converts the polarized light (circular polarization) of the light that has passed through the first compensation film into a linearly polarized light, and is laminated on the second compensation a polarizer on the membrane.

Alternatively, an image display of the display device set of the present invention may include an upper polarizing plate having a polarizer protective film laminated by a light source, a polarizer, a phase retardation pattern, and a polymer base film. In addition, the pair of polarized lenses may include a second compensation film that converts the polarized light (circular polarized light) of the light of the right eye and the left eye into a linear polarized light, and a first compensation film coupled to the second compensation film, It converts the polarized light of the light that has passed through the second compensation film but is not completely linearly polarized into linearly polarized light, and a polarizer laminated on the first compensation film.

The difference between the in-plane retardation (R0) of the polymer base film and the in-plane retardation (R0) of the first compensation film does not exceed 50 nm, preferably, does not exceed 30 nm. The above range of differences is necessary to avoid parasitic effects, because when the difference between the in-plane delays falls within the above range, the elliptically polarized light emitted by the image display can be converted into a circularly polarized ray.

Similar to the in-plane retardation of the polymer base film, when the difference between the in-plane retardation (R0) of the polymer base film and the first compensation film falls within the above range, the first compensation film The in-plane retardation (R0) is not less than 5 nm, especially between 5 and 300 nm, or between 5 and 50 nm.

A slow axis of the first compensation film is at right angles or perpendicular to a slow axis of the polymer base film. In the present invention, "right angle" or "vertical" includes not only mathematically and accurately vertical (90°). ) also includes substantially perpendicular, which provides the same or exact effect as the exact vertical. For example, in the present invention, the range of "right angle" or "vertical" may be 90 ± 5°.

For example, from an absorption axis or a transmission axis of the polarizer of the upper polarizing plate as a reference, the slow axis of the first compensation film may be 0° or 90°, The slow axis of the polymer based film can be 90°, or 0°. Or, as a reference for the upper polarizer The absorption axis of the polarizer or a transmission axis may be, while the slow axis of the first compensation film may be 45°, the slow axis of the polymer base film may be -45°.

The materials of the first compensation film and the polymer base film are not limited to any special materials, however, it is necessary to consider transparency, mechanical strength (or strength), thermal stability, moisture resistance, phase difference uniformity, and the like. Orientation, etc., and selecting a film suitable for the display device.

The first compensation film and the polymer base film are independently made of a group selected from the group consisting of polyolefin, polyester, cellulose, polycarbonate, acrylic, styrene, vinyl chloride, decylamine. (amide), sulfone, polyether sulfonamide, polyetheretherketone, polyphenylene sulfide, vinyl alcohol, vinylidene chloride, vinyl butyral , allyl, polyoxymethylene, and epoxy.

The first compensation film and the polymer base film do not need to have any specific thickness, however, preferably, the determined thickness is between 5 and 100 μm, preferably between 15 and 60 μm. Since the mechanical strength is weak when the thickness is less than 5 μm, it is difficult to control the manufacturing process and control the thickness. When the thickness exceeds 100 μm, it becomes difficult to make the display thin.

The polarizing plate in the present invention may be a conventional 3D display device such as a 3D liquid crystal display (LCD). For example, the polarizing plate may be configured to include a polarizer, and the polarizer may have a polarizer film attached to one side or both sides thereof, or a polarizer film may be attached to one side of the polarizer and A compensation film is attached to the other side of the polarizer.

The polarizer may be a person commonly used in the field of the present invention, and is not limited to any particular type, and for example, a dichroic compound, a film having a wire grid formed thereon, or a carbon naphthalene may be used. Extended polyethylene produced by the film on which the rice tube is formed An extended polyvinyl alcohol film.

Among them, it is preferred to use an extended polyvinyl alcohol film on which a dichroic dye is absorbed and oriented as a material of the polarizer because it can be easily processed into a film type, and polyvinyl alcohol can be borrowed. It is produced by saponification of a polyvinyl acetate polymer.

Examples of the polyvinyl acetate polymer include, but are not limited to, a monomer of vinyl acetate, and a copolymer of vinyl acetate with other monomers which form a copolymer with vinyl acetate. Specific examples of other monomers include, unsaturated carboxylic acid, unsaturated sulfonic acid, olefin, vinyl ether, acrylamide having an ammonium functional group. Amide) and so on.

The polyvinyl alcohol may be modified, and for example, a polyvinyl formal modified with acetaldehyde or polyvinyl acetal may be used. The polyvinyl alcohol may have a saponification value of usually from 80 to 100 mol%, preferably not less than 98 mol%, and the degree of polymerization of the polyvinyl alcohol may generally be between 1,000 and 10,000, preferably Yes, between 1,500 and 5,000.

The polarizing protective film may be any kind of film capable of protecting the mechanically fragile polarizer. For example, when the compensation film attached to a polarizer also protects the polarizer while delaying the phase, the The attached compensation film can also be regarded as the polarizer protective film of the present invention.

The polarizer protective film may be disposed between a polarizer and a phase retardation film (phase retardation pattern formed on a polymer base film), or disposed on one side of a polarizer of a pair of polarized lenses, or On both sides, the use of the polarizer protective film may be one selected from the group consisting of polyester, acrylic, polyolefin, and norbornene.

A phase retardation film of the present invention comprises two or more distinct regions of repeated configuration a different region (phase retardation pattern), and each of the different regions has a different phase, or a slow axis, and the method of forming the phase retardation pattern may include coating a liquid crystal layer, attaching a film, or removing one of the alignment films Part.

The phase retardation film of the present invention can be produced by forming an alignment film and coating a liquid crystal on top of the alignment film. The alignment film can be a general user in the field of the invention, and is not limited to a specific type of alignment. Membrane, however, it is preferred to use an organic alignment film.

The organic alignment film is made of an alignment film composition including an acrylate, a polyimide, or a polyamic acid, and the polyamine is a diamine. a polymer obtained by reacting with a dianhydride, and a polyimine is an imidization derived from polyamic acid, and the structure of the polyimine and the polyamic acid is not affected limit.

It is very important that the alignment film composition maintains proper viscosity. If the viscosity is too high, it is difficult to form an alignment film of uniform thickness because the composition does not easily flow when pressure is applied, and if it is sticky If the properties are too low, it is difficult to control the thickness of the alignment film. The adhesion of the alignment film composition is preferably between 8 and 13 cP.

It is also necessary to consider the surface tension, the amount of the solid material, and the volatility of the solvent. In particular, it is preferable to consider the thickness or hardening property of the alignment film when controlling the amount of the solid material because the amount of the solid material is Affects viscosity, or surface tension.

When the amount of the solid material is too large, the viscosity becomes higher, the thickness of the alignment film becomes thicker, and when the amount of the solid material is too small, the ratio of the solvent becomes higher, so when the solvent is dried After that, the alignment film becomes gets stained. The amount of solid material is preferably between 0.1 and 10% by weight.

The alignment film composition is preferably a solution containing a solid material, for example, dissolved The acrylate, polyimide, or polyamic acid in a solvent, the form of the solvent is not limited, specifically, butyl cellosolve , gamma butyrolactone, N-metyl-2-pyrrolidone, or dipropylene glycol methylether, in order to form solubility, viscosity, and surface Tension, and similar uniform alignment films, require a suitable amount of solvent.

The alignment film composition may additionally include a cross-linker and a coupling agent to effectively form the alignment film.

The alignment film is formed by applying an alignment film composition to one side of a polymer base film.

In the present invention, the application method is not limited, and any commonly used method may be utilized, and examples of the application method include air knife, gravure printing, reverse roll, kiss roll, spray, or blade, and the like. .

In order to effectively apply the alignment film composition, a drying process may be additionally applied.

The drying method is not limited and may be a usual method, for example, hot air or far infrared radiation may be used. The drying temperature is usually between 30 and 100 ° C, preferably between 50 and 80 ° C, and the drying time is usually between 30 and 600 seconds, preferably between 120 and 400 seconds. between.

Next, a method of forming an alignment direction on the alignment layer to form an alignment direction includes rubbing, photo-alignment, and the like, and is not limited to a specific method.

An example of forming a patterned alignment layer is to form an alignment direction over the entire plane of the alignment layer, and then another alignment direction is formed by an exposure procedure using a light mask. Alternatively, the patterned alignment layer can utilize a first exposure process using a first light mask having a light-transmitting region and a light-blocking region, and a second having an opposite light-transmitting region and a light-blocking region Manufactured by a second exposure procedure of the light mask.

The light used for the exposure process is not particularly limited, however, it is preferable to use polarized ultraviolet light, an ion beam having a predetermined angle, or radiated light.

The crystal cap layer is formed over the alignment layer having the alignment direction formed thereon.

The crystal cap layer can be formed by applying a crystal coating composition to the top of the patterned alignment layer.

The crystal coating composition may include a liquid crystal compound having optical anisotropy and photo-crosslinkability. For example, an active liquid crystal monomer (RM, active liquid crystal) may preferably be used. Reactive mesogen).

The reactive liquid crystal monomer is a monomer molecule having a liquid crystal phase characteristic, and has an end group which can be polymerized with a liquid crystal cell. The crosslinked polymer network and the maintained liquid crystal phase can be obtained by polymerization of the active liquid crystal monomer, and the active liquid crystal monomer which can be cooled at a clear point is more suitable for obtaining than the liquid crystal polymer. Good alignment, large area range.

The large-area cross-linked film is mechanically and thermally stable because it is also formed into a solid film while maintaining liquid crystal characteristics (for example, light isotropicity and dielectric constant, etc.).

An active liquid crystal compound diluted with a solvent can be used as a crystal coating composition to ensure coating efficiency and uniformity.

Examples of the solvent may be one selected from one or a mixture of two or more of the following, including: propylene glycol methyl ether acetate (PGMEA), methyl ethyl ketone (butanone), xylene, chloroform.

In the active liquid crystal compound, the amount of the active liquid crystal monomer is preferably between 15 and 30% by weight, the equivalent is less than 15% by weight, the phase difference is difficult to perform, and the equivalent is more than 30% by weight due to the activity The liquid crystal monomer is extracted, so it is difficult to form a uniform liquid crystal coating layer.

The coating method is not particularly limited, however, spin coating, roller coating, or gravure coating may be used, and it is preferred to determine the type of the solvent according to the coating method. And the amount.

The thickness of the dried liquid crystal coating layer is between 0.01 and 10 μm, and when the thickness falls within the above range, a uniform phase retardation film can be formed.

The solvent is evaporated by a drying procedure.

Hot air or far infrared radiation can be used in the drying process, the drying temperature is usually between 300 and 100 ° C, preferably between 50 and 80 ° C, and the drying time is usually between 30 and 600 seconds. Preferably, between 120 and 400 seconds, the drying temperature can be fixed, or gradually increased during the drying process.

The dried liquid crystal coating layer is photocrosslinked by ultraviolet light, and it completes the phase retardation film.

A second compensation film is a compensation film generally used for a pair of lenses that perform 3D images.

The image display of the present invention may additionally include a hard coat layer, an anti-glare layer, or a surface treatment layer such as an anti-adhesion layer, a diffusion layer, or an anti-flash layer or the like.

The hard coat layer is included to protect a surface of the image display, the anti-glare layer being included to prevent reflection of external light on the image display surface, and the anti-adhesion layer being Including to prevent the protective layer from sticking to the adjacent layer, the anti-flash layer is included to prevent the light that has passed through the polarizer from being reduced in visibility due to reflection from the surface of the image display, and the anti-flash layer can be formed by utilizing sand blasting This is achieved by embossing, or by mixing transparent particles to form a micro-convex structure.

The transparent particles have an average size of 0.5 to 5 μm and include particles made of cerium oxide, aluminum oxide, titanium oxide, zirconium oxide, zinc oxide, indium oxide, cadmium oxide, or cerium oxide, and may also be used for crosslinking. Or treated mineral particles or organic particles produced by uncrosslinking the particulate polymer, comprising from 2 to 70 parts by weight, preferably from 5 to 50 parts by weight, of transparent particles per 100 parts by weight of plastic, including transparent The anti-flash layer of the particles may be provided as a protective film of itself or may be coated on top of a protective layer, which may be used as a diffusion layer (a layer for compensating the viewing angle) because it will Diffusion of light that has passed through the polarizer.

The image display of the display device group according to the present invention is preferably a liquid crystal display that performs 3D image.

The liquid crystal display can perform a 3D image using a pair of polarized lenses including a polarizer and a compensation film, which converts the polarized light of the light that has passed through the image display into a linear polarized light of the right eye and the left eye.

In the following, the examples of the present invention are provided to provide a better understanding of the present invention. However, the following examples are provided as examples of the invention, and those of ordinary skill in the art, without departing from the scope and spirit of the invention Variations and modifications of the invention disclosed herein will be apparent, and such modifications and variations are considered to be within the scope of the invention as defined by the appended claims.

Instance

Example 1

As shown in Figure 1, the fabrication is performed with a sequential layer from a light source. One of the stacking layers, a polarizer protective film (triacetate, TAC), a PVA polarizer, a phase retardation pattern made of a reactive liquid crystal monomer (RM), and a polymer based film a polarizing plate, a slow axis of the polymer base film is at right angles to a transmission axis of the polarizer of the upper polarizing plate, and each phase retarding alignment direction of the phase retardation pattern is at right angles to each other, and each phase delay is The alignment direction is a clockwise 45° direction from the transmission layer of the polarizer or a 45° counterclockwise direction.

The image display of the present invention is produced by replacing a common upper polarizing plate in a general liquid crystal display with the upper polarizing plate.

A pair of polarized lenses are formed by attaching a first compensation film of the present invention to an outermost layer of a pair of universal polarized lenses including a polarizer and a second compensation film, the slow axis of the first compensation film The slow axis of the polymer base film is at a right angle.

Table 1 shows the occurrence or absence of parasitic effects according to the in-plane retardation of the polymer base film and the first compensation film.

As shown in Table 1, when the difference between the in-plane retardation of the polymer base film and the first compensation film does not exceed 50 nm, the parasitic effect is much reduced, and when the polymer base film and the first When the difference between the in-plane retardation of the compensation film does not exceed 30 nm, parasitic effects do not occur.

This is based on the principle shown in Fig. 2, in Fig. 2, 10 and 11 represent the transmission axes of an upper polarizing plate, 20 and 21 represent the slow axes of the phase retardation pattern, and 30 and 31 represent the polymer base film. The slow axes, 40 and 41 represent the slow axis of the first compensation film, 50 and 51 represent the slow axis of the second compensation film, and 60 and 61 represent the transmission axes of a polarizer of a pair of polarized lenses.

When an image passes through the polarizer of the upper polarizing plate, the polarized light of the image is converted into linear polarized light, and the linear polarized light is converted into circular polarized light when passing through the phase retardation pattern, in this case, the left eye. The direction of the circular polarization of the image and the right eye image will be opposite to each other, and the circular polarization will be converted into an elliptical polarization when passing through the polymer base film, and the elliptical polarization will be first compensated by the phase difference modulation. The relationship compensated by the film is again converted into a circularly polarized light that is converted into linearly polarized light as it passes through the second compensation film, in which case two rays that are at right angles to each other and are linearly polarized Will be incident on both the left eye and the right eye at the same time. However, while the linearly polarized light parallel to the transmission axis will pass, the linearly polarized light at right angles to the transmission axis will be blocked. Therefore, the present invention can be Implement 3D images without parasitic effects.

Example 2

As shown in Fig. 3, the display device group of the 3D image can be implemented as in the case of Example 1, except that the first compensation film is positioned in an image display.

As in Example 1, whether the parasitic effect occurs is the aggregation shown in Table 1. The in-plane retardation of the base film and the first compensation film was examined, and the results were the same as in Example 1, and the principle is described in FIG.

Example 3

As shown in Fig. 5, the display device group of the 3D image can be implemented as in the case of Example 1, except that the stacking order of the first compensation film and the second compensation film is reversed.

As in Example 1, whether or not the parasitic effect occurred was examined by using the polymer base film shown in Table 1 and the in-plane retardation of the first compensation film, and the results were the same as in Example 1.

The principle is shown in Fig. 6, except that the elliptical polarized light that has passed through the polymer base film maintains its polarization state when passing through the second compensation film, and is compensated by the first compensation film when passing through the first compensation film. The phase difference modulation is converted into linear polarization, and the principle shown in Fig. 6 is the same as that shown in Fig. 2.

Example 4

As shown in FIG. 7, the display device group of the 3D image can be implemented as in Example 1, except that the slow axis position of the polymer base film is 45° clockwise from the transport layer of the polarizer, and The slow axis of a compensation film is at right angles to the slow axis of the polymer base film, that is, at a counterclockwise 45° from the transport layer of the polarizer.

Table 2 shows the occurrence or absence of parasitic effects according to the in-plane retardation of the polymer base film and the first compensation film.

As shown in Table 2, when the difference between the in-plane retardation of the polymer base film and the first compensation film does not exceed 50 nm, the parasitic effect is much reduced, and when the polymer base film and the first When the difference between the in-plane retardation of the compensation film does not exceed 30 nm, the parasitic effect does not occur, which is based on the principle shown in Fig. 8.

Example 5

As shown in Figure 9, except that the slow axis of the polymer base film is at a clockwise 45° from the transport layer of the polarizer, and the slow axis of the first compensation film is slower than the slow axis of the polymer base film. At a right angle, that is, at a counterclockwise 45° from the transport layer of the polarizer, the display device group of the 3D image can be implemented as in Example 2.

As in Example 4, whether the parasitic effect occurred was examined using the in-plane retardation of the polymer base film and the first compensation film shown in Table 2, and the results were the same as in Example 4, and the principle is described in FIG.

Example 6

As shown in FIG. 11, the display device group of the 3D image can be implemented as in Example 3 except that the slow axis position of the polymer base film is at a clockwise 45° from the transport layer of the polarizer, and The slow axis of a compensation film is at right angles to the slow axis of the polymer base film, that is, at a counterclockwise 45° from the transport layer of the polarizer.

Whether or not the parasitic effect occurred was examined by using the in-plane retardation of the polymer base film and the first compensation film shown in Table 2, and the results were the same as in Example 4, and the principle is described in FIG.

Example 7

As shown in Fig. 13, the display device group of the 3D image can be implemented in the same manner as in the example 1 except that the phase retardation pattern of the image display is reversed from the stacking order of the first compensation film.

Whether or not the parasitic effect occurred was examined by using the in-plane retardation of the polymer base film and the first compensation film shown in Table 2, and the results were the same as in Example 4, and the principle is described in FIG.

Example 8

As shown in Fig. 15, the display device group of the 3D image can be implemented in the same manner as in Example 7 except that the stacking order of the first compensation film and the second compensation film is reversed.

Whether the parasitic effect occurred was examined by using the in-plane retardation of the polymer base film and the first compensation film shown in Table 2, and the results were the same as in Example 4, and the principle is described in FIG.

Example 9

As shown in Fig. 17, the display device group of the 3D image can be implemented in the same manner as in Example 2 except that the phase retardation pattern and the stacking order of the polymer base film are reversed.

Whether or not the parasitic effect occurred was examined by using the polymer base film shown in Table 2 and the in-plane retardation of the first compensation film, and the results were the same as in Example 4.

The principle is described in Fig. 18, the polarization of light emitted from a light source is converted into linear polarized light when passing through a polarizer, which is converted into an elliptical polarized light when passing through the polymer base film, left eye. The direction of the elliptical polarization of the image and the right-eye image is opposite to each other when passing through the phase retardation pattern, and the elliptical polarization is converted into a phase difference modulation relationship by the first compensation film when passing through the first compensation film. a circularly polarized light that is converted into linearly polarized light when passing through the second compensation film in the pair of polarized lenses, in which case two light rays that are at right angles to each other and linearly polarized are simultaneously incident on the left eye And the right eye, however, while the linearly polarized light parallel to the transmission axis passes, the linearly polarized light at right angles to the transmission bearing is blocked, so the present invention can be implemented without parasitic effects. 3D image.

Example 10

As shown in Fig. 9, the display device group of the 3D image can be implemented as the same as Example 1 except that the first compensation film is omitted.

Whether the parasitic effect occurs is checked by the in-plane retardation of the polymer base film of 80 nm, 100 nm, 110 nm, 140 nm, 150 nm, and 200 nm, and as a result, the parasitic effect occurs in each case, and in the plane The higher the delay, the more severe the parasitic effect.

The principle of the parasitic effect in Example 10 is shown in Fig. 20, when the light is converted into linear polarized light when passing through a polarizer, the linear polarized light is converted into circular polarized light, and the left eye image and the right eye image when passing through the phase retardation pattern. The direction of the circular polarization is opposite.

The circularly polarized light is converted into an elliptical polarized light when passing through the polymer base film, and is incident on a pair of polarized lenses, as a result of which is not transmitted parallel to the polarizer of the pair of polarized lenses. The light from the transmission axis is not completely blocked, so the image of the left eye can be seen by the right eye, and vice versa, which is called the parasitic effect that degrades the quality of the 3D image.

Claims (10)

A display device set for performing 3D images, comprising: an image display having a plurality of phase retardation patterns formed on a polymer base film, wherein the plurality of phase retardation patterns formed on the polymer base film are a position at which light passing through a polarizer of an upper polarizer passes; and a pair of polarized lenses for receiving an image from the image display and providing a viewer 3D image, wherein the image display Or one of the pair of polarized lenses includes a first compensation film disposed at a position through which light rays having passed through the plurality of phase retardation patterns formed on the polymer base film pass; wherein the polymerization The difference between an in-plane retardation of the base film and an in-plane retardation of the first compensation film does not exceed 50 nm; wherein a polarization of light passing through the plurality of phase retardation patterns formed on the polymer base film Converting into an elliptically polarized light; and wherein a polarized light of the light passing through the first compensation film is converted into a circularly polarized light. The display device set according to claim 1, wherein the image display is constructed such that light that has passed through the polarizer passes through the polymer base film, and light that has passed through the polymer base film passes through the A plurality of phase delay patterns. The display device set according to claim 1, wherein the image display is configured such that light that has passed through the polarizer passes through the plurality of phase delay patterns, and light that has passed through the phase delay pattern passes through the Polymer based film. The display device set according to claim 1, wherein the difference between the in-plane retardation of the polymer base film and the in-plane retardation of the first compensation film does not exceed 30 nm. The display device set according to claim 1, wherein a slow axis of the first compensation film is at a right angle to a slow axis of the polymer base film. The display device set according to claim 1, wherein each of the in-plane retardation of the polymer base film and the first compensation film does not exceed 5 nm. The display device set according to claim 1, wherein the first compensation film and the polymer base film are independently made of one selected from the group consisting of: polyolefin, Polyester, cellulose, polycarbonate, acrylic, styrene, vinyl chloride, amide, sulfone, polyether sulfonamide, polyetheretherketone, polyphenylene sulfide, Vinyl alcohol, vinylidene chloride, vinyl butyral, alllate, polyoxymethylene, and epoxy. The display device set according to claim 1, wherein the pair of polarized lenses comprises: the first compensation film; a second compensation film laminated on the first compensation film and configured to be The polarized light that has passed through the first compensation film is converted into linear polarized light; and a polarizer is stacked on the second compensation film. The display device set according to claim 1, wherein the pair of polarized lenses comprises: a second compensation film configured to convert polarized light emitted from the image display into linear polarized light; a compensation film laminated on the second compensation film; and a polarizer stacked on the first compensation film. The display device set according to claim 9, wherein the first compensation film converts the polarized light of the light that has passed through the second compensation film but is not completely linearly polarized into linearly polarized light.