JP2013167716A - Retardation plate and sticking method of retardation plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sticking method of a retardation plate, which can smoothly move the retardation plate to allow for fine adjustment.SOLUTION: The retardation plate comprises: a first retardation part exhibiting a first retardation function and a second retardation part exhibiting a second retardation function, which are alternately arranged; and an adsorption layer 22 mainly including a silicone rubber or a polyurethane rubber and a release film 68 protecting the adsorption layer 22 and to be divided into two or more, on a surface on which a retardation part 24 is aligned. The sticking method of sticking the retardation plate to a display part includes: a peeling step of peeling one of release films 62; a mounting step of mounting the retardation plate on the display part; an alignment step of aligning the retardation plate; a peeling step of peeling another release film from the retardation plate; and a sticking step of sticking the retardation plate to the display part.

Description

  The present invention relates to a phase difference plate and a method for attaching a phase difference plate.

  There is known a retardation plate to be attached to a display unit such as a liquid crystal display (for example, see Patent Document 1).

JP 2009-175551 A

  However, the pressure-sensitive adhesive or adhesive used to bond the retardation plate to the display unit of the liquid crystal display is difficult to reattach once it has been bonded, and the position of the retardation plate and the display unit In the adjustment, there is a problem that it is difficult to smoothly move and finely adjust the phase difference plate.

  In the first aspect of the present invention, the first phase difference portion that expresses the first phase difference function and the second phase difference portion that expresses the second phase difference function are alternately arranged. A retardation plate, wherein the retardation plate has an adsorption layer mainly composed of silicone rubber or urethane rubber on a surface on which the retardation portions are arranged, and a release film that protects the adsorption layer. A retardation plate is provided.

  In the second aspect of the present invention, the first phase difference portion that expresses the first phase difference function and the second phase difference portion that expresses the second phase difference function are alternately arranged, In a retardation plate comprising an adsorption layer mainly composed of silicone rubber or urethane rubber on a surface on which the retardation portions are arranged, and a release film divided into two or more to protect the adsorption layer. A peeling step for peeling the release film, a placing step for placing the retardation plate on the display unit, an alignment step for aligning the retardation plate, and another release film from the retardation plate There is provided a pasting method for pasting a phase difference plate to a display unit, comprising: a peeling step for peeling off a film, and a pasting step for pasting the retardation plate to a display unit.

  The above summary of the invention does not enumerate all necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

It is a whole block diagram of the control apparatus 10 with which the phase difference plate 18 was affixed. It is a longitudinal cross-sectional view along the II-II line of FIG. 3 is an exploded perspective view of a display unit 16 and a phase difference plate 18. FIG. It is a longitudinal cross-sectional view of the phase difference plate with a release film. It is a figure explaining the sticking method of the phase difference plate. It is a figure explaining the sticking method of the phase difference plate. It is a figure explaining the sticking method of the phase difference plate. It is a figure explaining the sticking method of the phase difference plate. 5 is a schematic plan view illustrating a method for aligning the phase difference plate 18. FIG. 5 is a schematic plan view illustrating a method for aligning the phase difference plate 18. FIG. 5 is a schematic plan view illustrating a method for aligning the phase difference plate 18. FIG.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is an overall configuration diagram of the control device 10 to which the phase difference plate 18 is attached. As shown in FIG. 1, an example of the control device 10 is a personal computer. The control device 10 includes a frame body 12 that accommodates and holds each unit, an operation unit 14 through which a user inputs instructions and the like, and a display unit 16 that displays an image. The phase difference plate 18 is formed in a rectangular shape that is slightly smaller than the display unit 16. For example, when the size of the display unit 16 is A4 size, the retardation plate 18 has a rectangular shape of 250 mm × 150 mm. The phase difference plate 18 has a thickness of 0.3 mm, for example. The phase difference plate 18 is attached to the center of the display unit 16.

  2 is a longitudinal sectional view taken along line II-II in FIG. As shown in FIG. 2, the phase difference plate 18 includes an adsorption layer 22 and a phase difference portion 24.

  The adsorption layer 22 is provided on the front surface of the display unit 16. The adsorption layer 22 adsorbs and holds the retardation plate 18 on the display unit 16. The adsorption layer 22 has a function of peeling off the phase difference plate 18 after being attached to the display unit 16 and then attaching it again. As an example of the adsorbent, an adsorbent mainly composed of silicone rubber or urethane rubber can be used.

  The phase difference unit 24 is provided on the front surface of the display unit 16 via the adsorption layer 22. The phase difference unit 24 receives a right-eye image and a left-eye image that are polarized light having the same polarization characteristics. The phase difference unit 24 converts both images into a right-eye image and a left-eye image that have different polarization characteristics and outputs the images. The user views these images through the glasses 30 for 3D images.

  FIG. 3 is an exploded perspective view of the display unit 16 and the phase difference plate 18. As shown in FIG. 3, the display unit 16 includes a light source 32, a polarizing plate 34, an image output unit 36, and a polarizing plate 38.

  The light source 32 outputs white non-polarized light with substantially uniform intensity in the plane. The light source 32 is arranged at the end of the display unit 16 as viewed from the user. As the light source 32, a light source combining a diffusion plate and a cold cathode fluorescent lamp (CCFL), a light source combining a Fresnel lens and a light emitting diode, a light source including an organic EL (Electro-Luminescence), and the like can be applied. .

  The polarizing plate 34 is bonded to the front surface of the light source 32. The polarizing plate 34 is made of a resin containing PVA (polyvinyl alcohol). In addition, you may change the material which comprises the polarizing plate 34 suitably. As shown by the arrows in FIG. 3, the polarizing plate 34 has a transmission axis inclined by 45 ° from the horizontal direction and an absorption axis orthogonal to the transmission axis. Thereby, in the non-polarized light output from the light source 32 and incident on the polarizing plate 34, the component whose vibration direction is parallel to the transmission axis of the polarizing plate 34 is transmitted and the component parallel to the absorption axis is absorbed. Is blocked. Therefore, the light output from the polarizing plate 34 becomes linearly polarized light having a polarization axis parallel to the transmission axis of the polarizing plate 34.

  The image output unit 36 is provided on the front surface of the polarizing plate 34. The image output unit 36 includes a plurality of pixels (= pixels) that generate an image. The plurality of pixels are two-dimensionally arranged at a constant pitch in the vertical direction and the horizontal direction. A pixel is a unit for handling an image and outputs color information of tone and gradation. Each pixel has three sub-pixels (= sub-pixels). Each sub-pixel has a liquid crystal part and a pair of transparent electrodes formed on the front and back surfaces of the liquid crystal part. The transparent electrode applies a voltage to the liquid crystal part. The liquid crystal portion of the subpixel to which the voltage is applied rotates the polarization axis of linearly polarized light by 90 °. As a result, the image output unit 36 outputs light that is transmitted through a polarizing plate 38 described later and light that is blocked, thereby generating an image. The three subpixels included in each pixel each include a red color filter, a green color filter, and a blue color filter. By controlling the voltage application of the transparent electrode of the sub-pixel, the degree of red, blue and green light output from the sub-pixel is adjusted to generate a color image.

  The image output unit 36 outputs a two-dimensional image and a three-dimensional image. The image output unit 36 outputs an image from the entire surface when outputting a two-dimensional image. On the other hand, when outputting a three-dimensional image, the image output unit 36 outputs the image from the three-dimensional region 40 at the center. As shown by “R” and “L” in FIG. 3, the three-dimensional region 40 includes a right-eye image output unit 42 that outputs a right-eye image and a left-eye image output unit 44 that outputs a left-eye image. . The right-eye image output unit 42 and the left-eye image output unit 44 have a rectangular shape extending in the horizontal direction and have the same shape. The right-eye image output unit 42 and the left-eye image output unit 44 are alternately arranged along the vertical direction.

  The polarizing plate 38 is provided on the front surface of the image output unit 36. The polarizing plate 38 is made of a resin containing PVA (polyvinyl alcohol). The polarizing plate 38 has a transmission axis and an absorption axis orthogonal to the transmission axis. The transmission axis of the polarizing plate 38 is orthogonal to the transmission axis of the polarizing plate 34. Thereby, the linearly polarized light whose polarization axis is rotated by 90 ° by the image output unit 36 passes through the polarizing plate 38 and becomes image light to form an image. On the other hand, the linearly polarized light whose polarization axis has not been rotated by the image output unit 36 is blocked by the polarizing plate 38. The transmission axis of the polarizing plate 38 and the transmission axis of the polarizing plate 34 may intersect at an angle other than 90 °.

  As shown in FIG. 3, the phase difference part 24 of the phase difference plate 18 expresses the right-eye phase difference part 46 and the second phase difference function as the first phase difference part that expresses the first phase difference function. It has a left-eye phase difference portion 48 as a second phase difference portion. The right-eye phase difference unit 46 and the left-eye phase difference unit 48 have a rectangular shape extending in the horizontal direction, and have the same shape as the right-eye image output unit 42 and the left-eye image output unit 44. The right-eye phase difference unit 46 is disposed in front of the right-eye image output unit 42. The left-eye phase difference unit 48 is disposed in front of the left-eye image output unit 44. Accordingly, when viewed from the front, the right-eye phase difference unit 46 overlaps with the right-eye image output unit 42, and the left-eye phase difference unit 48 overlaps with the left-eye image output unit 44.

  The right-eye retardation unit 46 has a phase difference function of a quarter-wave plate that modulates the polarization characteristics of the input linearly polarized light to make circularly polarized light. The optical axis of the right-eye phase difference unit 46 is parallel to the vertical direction as indicated by an arrow described at the left end of the right-eye phase difference unit 46 in FIG. As a result, the right-eye phase difference unit 46 modulates the linearly polarized light input from the display unit 16 into clockwise circularly polarized light as indicated by an arrow on the right side of the optical axis arrow. The optical axis is a fast axis or a slow axis.

  The left-eye retardation unit 48 has a quarter-wave plate phase-difference function that modulates the polarization characteristics of the input linearly polarized light so that the circularly polarized light is different from the circularly polarized light output from the right-eye phase difference unit 46. . The optical axis of the left-eye phase difference portion 48 is parallel to the horizontal direction as indicated by an arrow described at the right end of the left-eye phase difference portion in FIG. As a result, the left-eye phase difference unit 48 modulates the linearly polarized light input from the display unit 16 into counterclockwise circularly polarized light as indicated by an arrow on the right side of the optical axis arrow. Therefore, the right-eye phase difference unit 46 and the left-eye phase difference unit 48 modulate the polarization characteristics of the input polarized light, and output a right-eye image and a left-eye image having different polarization characteristics.

  The glasses 30 used when the user views a three-dimensional image includes a right eye lens 26 and a left eye lens 28. The right-eye lens 26 transmits only clockwise circularly polarized light. The left-eye lens 28 transmits only counterclockwise circularly polarized light. Thus, the user's right eye visually recognizes only the right eye image output from the right eye phase difference unit 46, and the user's left eye visually recognizes only the left eye image output from the left eye phase difference unit 48. To do.

  Each of the right-eye retardation portion 46 and the left-eye retardation portion 48 includes a substrate, an alignment film and a liquid crystal film formed on the substrate. The substrate can be composed of a cycloolefin-based film. As the cycloolefin-based film, a cycloolefin polymer (= COP), more preferably a cycloolefin copolymer (= COC), which is a copolymer of cycloolefin polymers, can be used. Moreover, you may comprise a board | substrate with the material containing a triacetyl cellulose (= TAC). In addition, when using a cycloolefin type film, it is preferable to use a high toughness type film from a viewpoint of brittleness. Furthermore, the substrate may be made of glass. A known photo-alignment compound can be applied to the alignment film. Examples of the photo-alignment compound include photodecomposition type, photodimerization type, and photoisomerization type compounds. The liquid crystal film can be composed of a liquid crystal polymer that can be cured by ultraviolet rays or heating. The liquid crystal film is aligned along the alignment of the alignment films formed in the regions of the right-eye retardation portions 46 and the left-eye retardation portions 48.

  A display operation of the three-dimensional image of the control device 10 having the display unit 16 to which the above-described retardation plate 18 is attached will be described. Note that the display operation of the two-dimensional image is the same as the normal display operation, and is therefore omitted.

  First, among the non-polarized light output from the light source 32, the polarizing plate 34 transmits only the component of light that vibrates in the direction parallel to the transmission axis. Thereby, the polarizing plate 34 outputs linearly polarized light parallel to the transmission axis. The right-eye image output unit 42 and the left-eye image output unit 44 of the image output unit 36 output a right-eye image and a left-eye image having the same polarization characteristics after rotating a part of the polarization axis of this linearly polarized light by 90 °. To do. The polarizing plate 38 transmits only linearly polarized light whose polarization axis is rotated by 90 ° by the image output unit 36. In the phase difference plate 18, the right-eye image output unit 42 modulates the linearly polarized light transmitted through the polarizing plate 38 into clockwise circularly polarized light, and the left-eye image output unit 44 counterclockwise converts the linearly polarized light transmitted through the polarizing plate 38. To be circularly polarized. As a result, the right eye of the user wearing the glasses 30 outputs right-handed circularly polarized light that is output from the right-eye image output unit 42 and modulated into right-handed circularly polarized light by the right-eye phase difference unit 46. An image enters. Further, the left-eye image which is output from the left-eye image output unit 44 and modulated by the left-eye phase difference unit 48 into the counterclockwise circularly polarized light is incident on the left eye of the user. Thereby, the user visually recognizes the three-dimensional image.

  FIG. 4 is a cross-sectional view of the retardation film 60 with a release film. Hereinafter, in the case where the configuration is the same as the configuration described above, the same number is assigned and the description is omitted. The retardation film 60 with a release film includes the retardation film 18 and a release film 68. The phase difference plate 18 includes an adsorption layer 22 and a phase difference portion 24. The adsorption layer 22 is provided on the entire surface of the retardation portion 24. Here, in FIG. 4, the area of the release film 68 and the area of the retardation plate 18 are substantially the same, but the release film 68 may be larger than the retardation plate 18. Thereby, the release film 68 can be easily peeled off from the phase difference plate 18.

  The release film 68 includes a release film 61, a release film 62, and a release film 63. The release films 61, 62, and 63 are provided in such a way that there is no gap in the plane of the adsorption layer 22. The release film 68 may be a release film in which the release films 61, 62, and 63 are integrated, and the boundary portions of the release films are cut at intervals. In the thickness direction of the boundary portion, there may be a score line that does not cut the release film. The release films 61, 62 and 63 prevent adhering substances such as dust from adhering to the surface of the adsorption layer 22. In the present embodiment, the release films 61, 62 and 63 are arranged side by side in parallel with the horizontal direction of the display unit 18. Note that the display unit 16 may be provided so as to be aligned vertically with respect to the horizontal direction. The number of release films is not particularly limited, but is preferably 2 or more, and more preferably 2 or 3 from the viewpoint of work efficiency and cost. Of the release films, the size of one release film is smaller than the size of the other release film. The release films 61, 62, and 63 are peeled in order when the retardation film 18 is bonded to the entire surface of the display unit 16. The release film 68 is not particularly limited as long as it does not adhere to the adsorption layer 22, and preferably includes a film subjected to a release treatment. Examples of the release treatment include release agents such as silicone release agents, fluorine release agents, and long-chain alkyl graft polymer release agents, and surface treatment methods using plasma treatment. Examples of the film used for the release film 68 include a TAC (triacetyl cellulose) film having no birefringence. When a PET (polyethylene terephthalate) film having birefringence is used, it is preferable to provide the retardation plate 18 so that the orientation axis of the PET film is parallel or perpendicular to the optical axis of the retardation plate. An example of the thickness of the release film is 30 to 200 μm. This facilitates the bonding operation and the alignment operation.

  5 to 8 are diagrams for explaining a method of attaching the phase difference plate 18. 5, 6, 7 and 8 are perspective views.

  5 to 8, the operation unit 14 of the control device 10 is omitted. The pasting method is executed in a state where the control device 10 is completed, but may be executed before the control device 10 is completed.

  First, as shown in FIG. 5, a phase difference plate 18 provided with a release film 68 is prepared. Next, the release film 62 is peeled off from the retardation plate 18. In the present embodiment, the release film 62 is smaller than the release films 61 and 63. The size of the release film 62 is such that when the release film 62 is peeled off from the retardation plate 18 and the retardation plate 18 is placed on the front surface of the display unit 16, the exposed adsorption layer 22 contacts the display unit 16. It is preferable that the size is such that it does not. Specifically, when the size of the display unit 16 is 8 inches to 15.6 inches, the area where the release film 62 actually covers the adsorption layer 22 is about 25% with respect to the entire area of the retardation plate 18. In addition, the area where the other release films 61 and 63 actually cover the adsorption layer 22 is about 37% of the entire area of the retardation plate 18. Thereby, the position alignment at the time of bonding can be performed easily.

  Next, as shown in FIG. 6, the front surface of the display unit 16 is aligned with the surface where the adsorption layer 22 of the retardation plate 18 is exposed. After the alignment, the release layer 22 is peeled off and the adsorbing layer 22 exposed is pressed against the display unit 16 and bonded. An example of the pressing method is a finger or a rubber spatula. The adsorbing layer 22 is preferably an adsorbing layer that can be bonded and then peeled off and bonded again. The alignment method will be described later.

  As shown in FIGS. 7 and 8, the release films 61 and 63 are sequentially peeled off so that the positions of the display unit 16 and the phase difference plate 18 do not shift, and the exposed adsorption layer 22 is bonded to the display unit 16. . When there is air intervening between the display unit 16 and the adsorption layer 22 at the time of bonding, it is preferable to use a finger or a rubber spatula to push the air from the center to the end.

  9, 10, and 11 are schematic plan views for explaining a method of aligning the phase difference plate 18. In FIG. 9, FIG. 10, and FIG. 11, the description will be made with the release film 68 omitted. 9 and 11, for convenience of explanation, the positions of the right-eye image output unit 42 and the left-eye image output unit 44 are set to the left of the positions of the right-eye phase difference unit 46 and the left-eye phase difference unit 48. However, both positions are substantially the same. The shapes and cycles of the right-eye image output unit 42 and the left-eye image output unit 44 seem to coincide with the shapes and cycles of the right-eye phase difference unit 46 and the left-eye phase difference unit 48. However, strictly speaking, the shape and the period of both are different. Specifically, the shapes and cycles of the right-eye phase difference unit 46 and the left-eye phase difference unit 48 are smaller than the shapes and cycles of the right-eye image output unit 42 and the left-eye image output unit 44. The right-eye phase difference unit 46 is an example of a first phase difference unit, and the left-eye phase difference unit 48 is an example of a second phase difference unit.

  In the three-dimensional area 40, the upper-half right-eye image output unit 42 indicated by thin line hatching in FIG. In the alignment, in the green region 90, a solid green single image is output from the entire surface. The solid green single image is an image for the right-eye phase difference unit 46 and is an example of a first image. The green region 90 is a region where the right-eye phase difference unit 46 is installed. In the three-dimensional area 40, the lower-half left-eye image output unit 44 indicated by thick line hatching in FIG. In the alignment, in the red region 92, a solid image of a single red color having a color different from that of the green region 90 is output from the entire surface. The solid red image is an image for the left-eye phase difference unit 48 and is an example of a second image. The red region 92 is a region where the left-eye phase difference portion 48 is installed. Of the three-dimensional region 40, a region indicated by dot hatching in FIG. In the alignment, in the non-image area 94, no light is output and the screen is black.

  First, as shown in FIG. 9, the right-eye phase difference unit 46 and the left-eye phase difference unit 48 completely overlap with the right-eye image output unit 42 and the left-eye image output unit 44 and are accurately aligned. The case will be described. In this state, the green linearly polarized light output from the green region 90 is modulated into clockwise circularly polarized light by the right-eye retardation unit 46. The red linearly polarized light output from the red region 92 is modulated into counterclockwise circularly polarized light by the left-eye phase difference unit 48. The user's right eye visually recognizes the same rectangular green image as the right-eye phase difference unit 46, and the user's left eye visually recognizes the same rectangular red image as the left-eye phase difference unit 48. In this state, the user observes a moiré that is symmetrical with respect to the vertical line with respect to a center line parallel to the horizontal direction of the display unit 16. As a result, the user recognizes that the alignment has been completed.

  Next, as shown in FIG. 10, the case where the phase difference plate 18 rotates clockwise with respect to the three-dimensional region 40 will be described. In this state, in the upper half, the upper right region and the upper left region 91 of the left eye phase difference unit 48 overlap the lower left portion of the right eye image output unit 42. Thereby, in the upper half, part of the green light output from the right-eye image output unit 42 passes through the triangular area 91 of the left-eye phase difference unit 48 and leaks. In the lower half, the upper right part and the lower left region 93 of the right-eye phase difference unit 46 overlap with the upper right part of the left-eye image output unit 44. As a result, in the lower half, a part of the red light output from the left-eye image output unit 44 passes through the triangular region 93 of the right-eye phase difference unit 46 and leaks. For this reason, the user observes the image including these leaked images as a distorted striped shape inclined from the horizontal direction, that is, a moire pattern. Therefore, the user can recognize that the phase difference plate 18 is rotated or inclined from the normal position. The user rotates or tilts the phase difference plate 18 so that the moire fringes are horizontal, and aligns the phase difference plate 18 in the rotation direction of the phase difference plate 18.

  Next, as shown in FIG. 11, the case where the retardation film 18 is displaced above the paper surface from the three-dimensional region 40 will be described. In this state, the right-eye phase difference unit 46 and the left-eye phase difference unit 48 are shifted above the paper surface with respect to the corresponding right-eye image output unit 42 and left-eye image output unit 44. In this case, when an image similar to that in FIG. 9 is output, the region 91 of the left-eye phase difference unit 48 overlaps the lower part of the right-eye image output unit 42. Thereby, in the upper half, part of the green light output from the right-eye image output unit 42 passes through the upper part of the left-eye phase difference unit 48 and leaks. Further, the region 93 of the right-eye phase difference unit 46 overlaps the upper part of the left-eye image output unit 44. Thereby, in the lower half, a part of the red light output from the left-eye image output unit 44 passes through the upper part of the right-eye phase difference unit 46 and leaks. Here, as described above, the shapes and cycles of the right-eye phase difference unit 46 and the left-eye phase difference unit 48 are smaller than the shapes and cycles of the right-eye image output unit 42 and the left-eye image output unit 44. Accordingly, these leaking light regions are asymmetrical with respect to the center line due to the difference in shape and period described above. For this reason, the user observes the images including these leaked images as stripes that are substantially parallel to the horizontal direction but are asymmetrical in the vertical direction across the center line, that is, moire fringes. Thereby, the user can recognize that the phase difference plate 18 is displaced in any one of the vertical directions. Accordingly, the user aligns the phase difference plate 18 in the direction along each side of the phase difference plate 18 by moving the phase difference plate 18 so that the moire fringes are vertically symmetrical with respect to the center line. .

  As described above, in the retardation film 60 with a release film, the release film 68 is composed of a plurality of release films. Thereby, the user peels off only one release film having the smallest area from the retardation plate 18 with respect to the entire area of the retardation plate 18 where the area of the release film that actually covers the adsorption layer 22 is, The exposed adsorption layer 22 is bonded to the display unit 16. As a result, the user can move the phase difference plate 18 smoothly and finely adjust it, and can easily and accurately align the position.

  In the attaching process of the present embodiment, the user can align the phase difference plate 18 while outputting an image corresponding to the three-dimensional image. Thereby, the alignment accuracy of the phase difference plate 18 can be improved. As a result, it is possible to improve the image quality by suppressing the crosstalk of the three-dimensional image.

  In the above-described embodiment, the example in which the linearly polarized light input to the phase difference plate 18 is modulated into circularly polarized light has been described. However, the phase difference plate is configured to modulate linearly polarized light into polarized light having a different polarization axis direction. Alternatively, it may be configured to modulate circularly polarized light into linearly polarized light.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

  DESCRIPTION OF SYMBOLS 10 Control apparatus, 12 Frame, 14 Operation part, 16 Display part, 18 Phase difference plate, 22 Adsorption layer, 24 Phase difference part, 26 Right eye lens, 28 Left eye lens, 30 Glasses, 32 Light source, 34 Polarizing plate, 36 image output unit, 38 polarizing plate, 40 three-dimensional region, 42 right eye image output unit, 44 left eye image output unit, 46 right eye phase difference unit, 48 left eye phase difference unit, 60 phase difference plate with release film 61 release film, 62 release film, 63 release film, 68 release film, 90 green area, 91 area, 92 red area, 93 area, 94 no image area

Claims (4)

A phase difference plate in which a first phase difference portion that expresses a first phase difference function and a second phase difference portion that expresses a second phase difference function are alternately arranged,
The retardation plate is
An adsorption layer mainly composed of silicone rubber or urethane rubber on the surface where the retardation parts are arranged;
A release film for protecting the adsorption layer;
A phase difference plate.   The retardation film according to claim 1, wherein the release film is a release film that is divided into two or more. The retardation film according to claim 2, wherein the release film has an area of one release film that actually covers the adsorption layer smaller than an area of another release film that actually covers the adsorption layer. The first phase difference portion that expresses the first phase difference function and the second phase difference portion that expresses the second phase difference function are alternately arranged, and the surface on which the phase difference portion is arranged is silicone. In a phase difference plate comprising an adsorption layer mainly composed of rubber or urethane rubber, and a release film divided into two or more to protect the adsorption layer,
A peeling step of peeling one release film;
Placing the retardation plate on a display unit; and
An alignment step of aligning the retardation plate;
A peeling step of peeling another release film from the retardation plate;
A bonding step of bonding the retardation plate to the display unit;
The sticking method which affixes a phase difference plate provided on a display part.

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