JP2013041016A - Screen, screen device, screen manufacturing method, and screen device manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a screen of which the center axis in a lateral direction is easily substantially aligned with an optical axis of projection light projected from a projector, a screen device, a screen manufacturing method, and a screen device manufacturing method.SOLUTION: A screen 2 includes a screen substrate 20 which reflects projection light to perform display, and the screen substrate 20 is provided, on at least one end side in a vertical direction, a center position indication part (first hole part 24) explicitly indicating a center position in a lateral direction of the screen substrate 20. The screen device includes the screen 2 and a frame 3 holding the screen 2, and the frame 3 has a holding part 30 for holding the first hole part 24 of the screen 2. The screen manufacturing method includes a center position indication part formation step 103 of forming, on one end side of the screen substrate 20, the first hole part 24 explicitly indicating the center position in the lateral direction of the screen substrate 20.

Description

  The present invention relates to a screen, a screen device, a method for manufacturing a screen, and a method for manufacturing a screen device.

  2. Description of the Related Art Conventionally, a screen device that displays an image by reflecting projection light projected from a projection display device such as a projector on a screen is known. In Patent Document 1, a concave shape is formed, which has a plurality of concave portions arranged on a plane, and as the distance from the reference point on the plane or an extended surface of the plane increases, A screen is disclosed in which concave portions are arranged with increasing pitch. Thereby, the light from the projector is efficiently advanced to the front with an appropriate angular distribution, and an image with high brightness and high contrast can be obtained.

JP 2010-96883 A

In the screen disclosed in Patent Document 1, the concave surface portion is formed to be bilaterally symmetrical and vertically asymmetric. In such a screen having a concave portion, if the optical axis of the projection light from the projector does not intersect the axis including the reference point and the center in the left-right direction, the screen can be efficiently advanced to the front, with high brightness and high contrast. There is a problem that it is difficult to obtain a simple image. In other words, if a plane that passes through the central axis in the left-right direction and is substantially perpendicular to the plane of the screen is set, the optical axis must be included on this plane. In other words, the plane including the central axis and the optical axis needs to intersect the screen surface substantially perpendicularly. Hereinafter, this is appropriately used as “the central axis and the optical axis substantially coincide”. As another problem, when a projection light display area is set on the screen, it is a problem to form a reflective film only in the display area.
Accordingly, there is a demand for a screen, a screen device, a method for manufacturing the screen, and a method for manufacturing the screen device that make it easy to substantially match the central axis in the left-right direction of the screen with the optical axis of the projection light projected from the projector. It was.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  (Application Example 1) The screen according to this application example is a screen having a screen base material that reflects and displays the projected light, and the screen base material is on at least one end side in the vertical direction. A center position display section that clearly indicates the center position in the left-right direction of the screen base material is provided.

  According to such a screen, by providing a center position display unit that clearly indicates the center position in the left-right direction of the screen base material, for example, the center axis of the screen base material and the optical axis of the projection light must be matched. If this is not the case, using the center position display section as a reference facilitates matching.

  Application Example 2 In the screen according to the application example described above, the screen base material includes a display area that performs display by reflecting the projection light, and the center position display unit is configured to display the display area at the center position in the horizontal direction of the display area. It is preferable that it is formed outside.

  According to such a screen, when it has a display area that reflects the projection light to display (for example, the display area is a plurality of recesses or protrusions formed in a bilaterally symmetrical and vertically asymmetrical arrangement) In the case where a reflective film is provided on the inner surface or the outer surface of the display area, the center position in the left-right direction of the display area and the optical axis of the projection light can be easily matched. Moreover, since the center position display part is formed outside the display area, it does not affect the projection light.

  Application Example 3 In the screen according to the application example, it is preferable that the center position display unit has a first hole.

  According to such a screen, the center position display part can be realized with a simple configuration called a hole (first hole).

  Application Example 4 In the screen according to the application example, it is preferable that the center position display unit has at least one second hole part in the left-right direction with the first hole part as the center.

  According to such a screen, the center position display unit can ensure the level of the screen or the display area by having at least one second hole part in the left-right direction with the first hole part as the center. it can. Further, for example, when the screen is fixed to another member, it is possible to secure and fix the horizontality by using the first hole and the second hole.

  Application Example 5 The screen according to the application example described above preferably includes a boundary display unit that indicates a boundary between the display region and the outside of the display region.

  According to such a screen, for example, the mask can be easily installed using the boundary display portion as a guide. Thereby, for example, it becomes easy to form a reflective film or a protective film for protecting the reflective film only in the display region.

  Application Example 6 A screen device according to this application example includes any of the above-described screens and a frame that holds the screen, and the frame includes a holding unit that holds a center position display unit of the screen. It is characterized by being.

  According to such a screen device, the center position display part of the screen is held by the holding part of the frame, so that it becomes easy to coincide with the optical axis of the projection light. In addition, it is possible to secure the level and fix the screen.

  Application Example 7 In the screen device according to the application example, it is preferable to include a winding mechanism unit that winds the screen and an expansion / contraction mechanism unit that expands and contracts the screen.

  According to such a screen device, the screen having the above-described effects is provided with a winding mechanism portion and an expansion / contraction mechanism portion, so that the screen is stretched during use and wound in a compact manner when finished. be able to. In addition, when the expansion / contraction mechanism part is provided, if the alignment is performed in accordance with the center position display part, the alignment of the entire screen device is facilitated.

  (Application Example 8) In the screen device according to the application example, the projector includes a projector that modulates light from the light source to form projection light and projects the light toward the screen, and an optical axis of the projection light projected from the projector; It is preferable that the center position of the screen substantially coincides.

  According to such a screen device, since the optical axis of the projection light projected from the projector and the center position in the left-right direction of the display area on the screen substantially coincide with each other, the projection light incident on the screen is observed by the observer. It is possible to realize a screen device that efficiently reflects to the side and obtains an image with high brightness and high contrast.

  (Application Example 9) A method for manufacturing a screen according to this application example is a method for manufacturing a screen having a screen base material that performs display by reflecting projection light, and includes at least one of the screen base material in the vertical direction. A center position display part forming step of forming a center position display part that clearly indicates the center position in the left-right direction of the screen base material is provided on the end side.

  According to such a method for manufacturing a screen, for example, the center position display portion is formed by the center position display portion forming step so that, for example, the center position in the left-right direction of the screen base material matches the optical axis of the projection light. Can be manufactured easily.

  Application Example 10 In the screen manufacturing method according to the application example described above, the screen base material includes a display area that reflects and reflects the projection light, and the center position display unit forming step includes the center in the horizontal direction of the display area. It is preferable to include a first hole forming step of forming a first hole outside the display area at the position.

  According to such a method for manufacturing a screen, the center position display portion forming step includes a first hole portion forming step, and the first hole portion is formed outside the display region at the center position in the left-right direction of the display region. Thereby, a center position display part can be constituted simply.

  Application Example 11 In the method for manufacturing a screen according to the application example, the center position display unit forming step includes a second hole portion that forms at least one second hole portion in the left-right direction with the first hole portion as a center. It is preferable to include a forming step.

  According to such a method for manufacturing a screen, the center position display portion forming step includes the second hole forming step for forming the second hole, thereby manufacturing a screen that can ensure the level of the screen or the display area. be able to. Further, for example, when the screen is fixed to another member, a screen that can be fixed while securing the level can be manufactured by using the first hole and the second hole.

  (Application example 12) In the method for manufacturing a screen according to the application example, a base material deformation step for deforming the screen base material so as to have a plurality of concave portions or convex portions in a bilaterally symmetrical and vertically asymmetrical arrangement with respect to the display region; A reflective film forming step of selectively forming a reflective film with respect to the concave portion or the convex portion, wherein the reflective film forming step includes the first hole and the second hole formed in the central position display portion forming step. It is preferable to include a holding step of holding the part on a predetermined member.

  According to such a method for manufacturing a screen, the reflective film forming step includes the holding step, whereby the screen base material can be held on a predetermined member to form the reflective film, and the efficiency of the reflective film formation can be improved. Can be planned.

  Application Example 13 In the screen manufacturing method according to the application example described above, it is preferable to include a boundary display part forming step for forming a boundary display part indicating a boundary between the display area and the outside of the display area.

  According to such a method for manufacturing a screen, for example, a mask can be installed using the boundary display portion as a guide by providing the boundary display portion forming step for forming the boundary display portion. Thereby, for example, it is possible to manufacture a screen that makes it easy to form a reflective film or a protective film for protecting the reflective film only in the display region.

  Application Example 14 In the method for manufacturing a screen according to the application example described above, a base material deforming step of deforming the screen base material so as to have a plurality of concave portions or convex portions in a bilaterally symmetrical and vertically asymmetrical arrangement with respect to the display region. It is preferable that the base material deformation step and the boundary display portion forming step are performed as a common step.

  According to such a method for manufacturing a screen, the base material deforming step and the boundary display portion forming step are performed as a common step, so that the base material deforming step is performed to form the concave portion or the convex portion. Thus, the boundary display portion can be formed by performing the boundary display portion forming step. Thereby, a boundary display part can be formed efficiently.

  Application Example 15 A screen device manufacturing method according to this application example is a screen holding method in which a screen is held in a frame by using a center position display unit with respect to a screen manufactured by any one of the above-described screen manufacturing methods. It has the process, It is characterized by the above-mentioned.

  According to such a method for manufacturing a screen device, a screen holding step is provided, and the screen is held on the frame using the center position display unit. Thus, it is possible to manufacture a screen device that can secure the level and fix the screen to the frame, and can easily match the horizontal center position of the display area with the optical axis of the projection light. it can.

The figure which shows typically the screen apparatus which concerns on embodiment. The top view which shows a screen typically. The figure which shows the manufacturing process of a screen in order of a process. The schematic diagram which shows the manufacturing process of a screen. The schematic diagram which looked at the surface of the screen base material after a center position display part formation process. The perspective view which shows a vapor deposition apparatus typically.

Hereinafter, embodiments will be described with reference to the drawings.
(Embodiment)

  FIG. 1 is a diagram schematically illustrating a screen device 1 according to the embodiment, FIG. 1A is a perspective view of the screen device 1, and FIG. 1B is a frame 3 that holds the screen 2. FIG. With reference to FIG. 1, the outline structure of the screen apparatus 1 of this embodiment is demonstrated easily.

  The screen device 1 of the present embodiment is a reflective screen device 1 and is a type of device that is used by being installed on a floor surface or the like. The screen device 1 includes a substantially rectangular screen 2 that extends from the inside of a box 7 formed in a rectangular parallelepiped box shape upward (in a direction substantially perpendicular to the floor surface) and an expansion / contraction mechanism unit 4 and a winding mechanism. It is paid out by the operation with the unit 5. The screen 2 stands up with respect to the floor surface and can be used. The screen 2 reflects the projection light L emitted from the projector 6 installed on the housing 7 to the viewer side. The details of the screen device 1 will be described later.

  In the subsequent drawings including FIG. 1, the dimensions and ratios of the respective constituent elements are shown as appropriately different from the actual ones in order to make the respective constituent elements large enough to be recognized on the drawing. Further, in the subsequent drawings including FIG. 1, for convenience of explanation, it is described in an XYZ orthogonal coordinate system. In the XYZ orthogonal coordinate system, the direction perpendicular to the floor surface is the Y direction. A direction parallel to the front (front) surface 20A of the standing screen 2 and orthogonal to the Y direction is defined as an X direction. A direction orthogonal to the Y direction and the X direction is defined as a Z direction.

  In the Y direction, the gravity direction (−Y direction) is defined as a downward direction and the direction opposite to the gravity direction (+ Y direction) is defined as an upward direction with respect to the gravity direction. Further, in the X direction, the + X direction when facing the surface 20A of the screen 2 in an upright state is the right direction, and the -X direction is the left direction. Further, the direction (+ Z direction) facing the surface 20A of the standing screen 2 is appropriately used as the front direction, and the reverse direction (−Z direction) is used as the back direction.

  FIG. 2 is a plan view schematically showing the screen 2. With reference to FIG. 2, the structure of the screen 2 of this embodiment is demonstrated.

  The screen 2 of the present embodiment is a reflective screen 2 and is formed of a flexible sheet-like screen base material 20. Specifically, the screen substrate 20 is formed in a rectangular shape using a black and hard vinyl chloride resin. The reason why it is black is that unnecessary incident light can be easily absorbed.

  The screen 2 generally includes a display area 21, a display outside area 22 outside the display area 21, and a center position display area in which a first hole 24 and a second hole 25 as center position display parts are formed. 23 and a boundary display unit 26 indicating the boundary between the display area 21 and the non-display area 22.

  Although details will be described later, a plurality of concave portions 201 formed in a concave shape are formed on the front surface 20A of the display area 21 and the non-display area 22. The display area 21 has a rectangular shape and is positioned substantially at the center of the screen 2, and is an area where the projection light L from the projector 6 is projected. In the display area 21, a reflective film 202 is selectively formed in the recess 201, and the projection light L is reflected in the forward direction.

  The center position display area 23 is an area used when the screen 2 is installed in the screen device 1, which is located at the vertical end of the screen base material 20. The center position display area 23 is also used when the reflective film 202 is formed. Here, the center position display area 23 located in the upward direction is 23A, and the center position display area 23 located in the downward direction is 23B.

  In the center position display area 23, in the present embodiment, a first hole 24 (upward first hole) formed in a round hole shape having a center on the central axis B in the left-right direction of the display area 21 is formed. The hole 24 is defined as 24A, and the first hole 24 in the downward direction is defined as 24B). Further, in the present embodiment, the center position display area 23 has a second hole 25 (in the upward direction) formed in a round hole shape at equal intervals in the left-right direction around the first hole 24. A plurality of second hole portions 25A and 25B of second hole portions 25 in the downward direction are formed. In addition, the hole diameter of the first hole portion 24 is formed larger than the hole diameter of the second hole portion 25.

  As described above, the boundary display unit 26 indicates the boundary between the display area 21 and the non-display area 22. The boundary display unit 26 is a type (hereinafter referred to as a mask) that covers a region where the reflective film 202 is not formed (the non-display region 22 and the center position display unit region 23) when the reflective film 202 is formed in the display region 21. It is used for installation. In the present embodiment, the display outside area 22 is formed in a rectangular shape at the four corners of the display area 21. The boundary display unit 26 is formed in a concave shape.

  FIG. 3 is a diagram illustrating the manufacturing process 100 of the screen 2 in the order of processes. FIG. 4 is a schematic diagram showing a manufacturing process 100 of the screen 2. FIG. 4A shows a base material deformation process 101, a boundary display part forming process 102, and a center position display part forming process 103 (center position mark formation). FIG. 4B is a schematic diagram showing the center position display portion forming step 103 (first hole forming step 103B, second hole forming step 103C). FIG. 6C is a schematic diagram illustrating the reflective film forming step 104. The manufacturing process 100 of the screen 2 will be described with reference to FIGS.

  In addition, the manufacturing process 100 shown to FIG. 3, FIG. 4 is what cut | disconnected in size according to the dimension of the screen base material 20 to be used from the state by which the screen base material of several hundred m length was wound by roll shape. Is done using. FIG. 4 is an enlarged view showing the result of each step as a cross section of the main part.

  As shown in FIG. 3, the manufacturing process 100 of this embodiment includes a base material deformation process 101, a boundary display part forming process 102, a center position display part forming process 103, and a reflective film forming process 104 in the order of processes. . In the present embodiment, the base material deformation process 101, the boundary display part forming process 102, and the center position mark forming process 103A that is a part of the center position display part forming process 103 are performed as a common process. In other words, the base material deformation step 101, the boundary display portion forming step 102, and the center position display portion forming step 103 (center position mark forming step 103A) are performed (processed) at the same time.

  Specifically, the center position display part forming step 103 includes a center position mark forming process 103A, a first hole forming process 103B, and a second hole forming process 103C. In the center position mark forming process 103A, a mark for performing the first hole forming process 103B and the second hole forming process 103C of the next process is formed in the center position display area 23. In the first hole forming step 103B, the first hole 24 is formed, and in the second hole forming step 103C, the second hole 25 is formed.

  The reflective film forming process 104 includes a mask installation process 104A, a holding process 104B, and a vapor deposition process 104C in detail. In the mask installation process 104A, a mask is installed so as to cover an area other than the display area 21 with reference to the boundary display part 26 formed in the boundary display part forming process 102. In the holding step 104B, the first hole 24 and the second hole 25 formed in the center position display portion forming step 103 are used to set in a vapor deposition apparatus 130 (see FIG. 6) described later.

  As shown in FIG. 4A, the base material deforming step 101 deforms the screen base material 20 to form a plurality of concave portions 201 on the surface 20 </ b> A of the screen base material 20. The recess 201 is formed across the display area 21 and the outside display area 22 in the screen base material 20. The inner surface 201A of the recess 201 is formed in a substantially hemispherical shape.

  In the boundary display part forming step 102, the screen base material 20 is deformed to form a rectangular and concave boundary display part 26 on the surface 20A of the screen base material 20. The boundary display unit 26 is formed in the non-display region 22 at the four corners of the display region 21.

  In the center position mark forming step 103A of the center position display portion forming step 103, the concave portion 231 is used as a mark for indicating the center positions of the first hole 24 and the second hole 25 formed in the next step. It is formed on the surface 20A of the material 20. In the present embodiment, as shown in FIG. 2, the center position where the first holes 24A, 24B in the vertical direction are formed and the second one on each of the left and right sides where the second holes 25A in the upper direction are formed. Concave portions 231 are formed at a total of six locations, that is, the center position of the hole portion 25A and the center position of each one second hole portion 25B on the left and right sides where the second hole portion 25B in the downward direction is formed. In addition, the recessed part 231 is formed in a substantially hemispherical shape, as shown to Fig.4 (a).

  The base material deformation step 101, the boundary display portion formation step 102, and the center position mark formation step 103A are simultaneously performed using a transfer device (not shown) that presses the mold against the screen base material 20 while heating. The transfer device presses the screen base material 20 with high pressure from both sides while heating the mold formed in a shape opposite to the shape to be formed (the concave portion 201, the boundary display portion 26, and the concave portion 231). The screen substrate 20 is thermally deformed (transferred) along the mold shape to form a necessary shape.

  As shown in FIG. 4 (b), the center position display portion forming step 103 includes the first hole forming step 103B and the second hole portion after the above-described center position mark forming step 103A (FIG. 4 (a)). In the present embodiment in which the forming process 103C is performed, the first hole forming process 103B and the second hole forming process 103C are performed as a common process. In other words, the first hole forming step 103B and the second hole forming step 103C are performed (processed) at the same time.

  The center position display portion forming step 103 (first hole forming step 103B, second hole forming step 103C) is formed in the center position mark forming step 103A in the center position display portion region 23 (23A, 23B). In the first hole forming step 103B, the first hole 24 formed as a round hole is formed in the first recess forming step 103B, and the second hole formed as a round hole in the second hole forming step 103C. A portion 25 is formed.

  The center position display part forming step 103 is a press mold (not shown) in which a plurality of pin members having blade edges formed with diameters corresponding to the respective hole diameters of the first hole part 24 and the second hole part 25 are erected. Is formed from the surface 20A of the screen base 20 as a through hole. In this case, first, after aligning the press mold with respect to the screen base material 20, pressing is performed. In addition, the positioning method uses the above-described six recesses 231 as a mark, and the press molds corresponding to the first holes 24A and 24B and the second holes 25A and 25B formed in the recess 231 are used. This is done by matching the position of the pin member. In addition, the recessed part 231 is also illustrated in FIG.4 (b).

  As shown in FIG. 4B, in the center position display portion region 23 (23A, 23B), the first hole portions 24 are respectively formed on the central axis B in the left-right direction of the display region 21 by the center position display portion formation step 103. (24A, 24B) is formed. A plurality of second hole portions 25 (25A, 25B) are formed at equal intervals P in the left-right direction around the first hole portion 24 (24A, 24B). Since the size of the concave portion 231 is smaller than the hole diameters of the first hole portion 24 and the second hole portion 25, the concave portion 231 does not remain after the first hole portion 24 and the second hole portion 25 are formed.

  In the present embodiment, the hole diameter of the first hole portion 24 is formed larger than the hole diameter of the second hole portion 25. The first hole 24 and the second hole 25 have different diameters because the first hole 24 arranged on the central axis B and the other holes (second hole 25) are different. This is so that it can be identified. The main hole is the first hole 24.

  FIG. 5 is a schematic view of the surface 20 </ b> A of the screen base material 20 after the center position display portion forming step 103. With reference to FIG. 5, the structure of the recessed part 201 is demonstrated.

  As described above, the recess 201 is formed across the display area 21 and the outside display area 22. The recesses 201 are arranged in an arc shape centering on a predetermined position on the central axis B of the screen 2 (display area 21) in the left-right direction (X direction), and concentrically centering on this center in the Y direction. It is formed to arrange. Accordingly, the recess 201 is formed symmetrically about the central axis B in the left-right direction and asymmetrically formed in the vertical direction.

  Further, the first hole 24 and the second hole 25 formed in the center position display area 23 are formed so that the center positions are linearly arranged in the left-right direction. Specifically, the center positions are formed so as to be aligned in the direction perpendicular to the center axis B.

  Returning to FIG. 4, after the center position display portion forming step 103 is completed, the process proceeds to the next reflective film forming step 104. The reflective film forming step 104 is a step of selectively forming the reflective film 202 on the inner surface 201A of the recess 201 as shown in FIG. As shown in FIG. 3, the reflective film forming step 104 includes a mask setting step 104A for setting a mask, a holding step 104B for holding the screen substrate 20 in the vapor deposition apparatus 130, and a vapor deposition step 104C. Is done. In the present embodiment, an aluminum film is selectively formed in the recess 201 (the inner surface 201A) by the vapor deposition step 104C.

FIG. 6 is a perspective view schematically showing the vapor deposition apparatus 130. With reference to FIG. 6, the reflective film formation process 104 is demonstrated.
In the reflective film forming step 104, the mask placement step 104A exposes the region (display region 21) where the reflective film 202 is formed, and the regions (outside display region 22 and center position display part region 23) where the reflective film 202 is not formed. It is a process performed to cover. Note that this step is performed by an operator in this embodiment.

  In the mask placement step 104A, the screen base material 20 in which the center position display portion formation step 103 has been completed, the display outer region 22 and the center position display portion region 23 in which the reflective film 202 is not formed with reference to the four boundary display portions 26. A mask 120 is formed (installed) by attaching a tape-like member to the substrate. After the mask installation process 104A is completed, the process proceeds to the holding process 104B.

  As shown in FIG. 6, the vapor deposition apparatus 130 includes a cylindrical casing (not shown), and a screen holding frame 131 having a cylindrical shape is installed one by one in the vertical direction inside the casing. The upper screen holding frame 131 has a lid shape. The screen base material 20 is installed with respect to such a vapor deposition apparatus 130.

  First, the screen base 20 on which the mask 120 is installed is curved so that the surface 20A faces inward, and the first hole 24 and the second hole 25 formed in the vertical direction are formed inside the screen holding frame 131. Hit the side. On the inner side surface of the screen holding frame 131, protrusions (not shown) are installed corresponding to the hole diameters and pitches P of the first hole 24 and the second hole 25. The screen base material 20 is installed in the vapor deposition apparatus 130 by installing the projection so as to be inserted into the first hole 24 and the second hole 25. After the holding process 104B is completed, the process proceeds to the vapor deposition process 104C.

  FIG. 4C is a schematic diagram that also shows the vapor deposition step 104 </ b> C in the reflective film forming step 104. With reference to FIG.4 (c) and FIG. 6, it demonstrates regarding the vapor deposition process 104C.

  As shown in FIG. 6, a vapor deposition source S is installed in the vapor deposition apparatus 130. The vapor deposition source S is installed on the lower side of the screen base material 20 on the YZ plane passing through the central axis B shown in FIGS. In FIG. 6, on the plane formed by the central axis B of the installed screen base material 20 and the central axis of the screen holding frame 131 in the vertical direction (on the YZ plane in FIG. 6), the lower part of the screen base material 20 Installed on the side.

  In the present embodiment, the vapor deposition step 104 </ b> C is specifically the position of the projector 6 (see FIG. 1) that emits the projection light L obliquely with respect to the surface 20 </ b> A when the reflective film 202 is formed, and the vapor deposition source S. The position is substantially matched. Therefore, by performing the vapor deposition step 104C, the reflective film 202 along the shape of the inner surface 201A is formed so as to correspond to the inner surface 201A portion of the recess 201 into which the projection light L is incident.

  In this way, by performing the vapor deposition from an oblique direction and selectively forming the reflective film 202 in the region not covered with the mask 120, each concave portion of the display region 21 of the surface 20A with the vapor deposition source S as the center. A reflective film 202 is formed radially on 201 partially. Then, the display region 21 is formed by forming the reflective film 202 in the region not covered with the mask 120 by the vapor deposition step 104C.

  When the reflection film forming step 104 is completed, in the subsequent step, the center position display portion region 23B positioned in the downward direction is cut in the subsequent step. And the screen base which functions as a winding allowance with the same width as the length of the screen base material 20 in the left-right direction on the back surface of the display outside region 22 (screen base material 20) which becomes the lower edge of the cut screen 2. One edge of the material 28 is stuck. As a result, the screen 2 has the screen base material 28 for winding the screen base material 20 extending downward. The screen 2 processed in this way is assembled as a screen device 1.

Returning to FIG. 1, the configuration and manufacturing method of the screen device 1 will be described.
As described above, the screen device 1 includes the screen 2, the expansion / contraction mechanism unit 4, the winding mechanism unit 5, the projector 6, and the housing 7.

  The housing 7 is formed in a rectangular parallelepiped box shape, and a projector 6 is mounted on the center of the upper surface 7a with the projection lens 61 facing rearward and fixed to the upper surface 7a. Further, an opening 71 is formed behind the upper surface 7a of the housing 7, and the screen 2 is drawn upward through the opening 71, and is wound and accommodated inside the housing 7. .

  A winding mechanism unit 5 is installed inside the housing 7. In the winding mechanism portion 5, a spring roll 50 to which the other end side of the screen 2 (the other edge portion of the screen base material 28) is fixed is rotatably attached to the housing 7. One end side (upward center position display area 23A) of the screen 2 is held and fixed to a frame 3 described later. The spring roll 50 is always biased in the direction in which the screen 2 is wound up. Therefore, the screen 2 is always pulled by the frame 3 and the spring roll 50.

  On the right side surface 7 b of the housing 7, the telescopic mechanism portion 4 is installed. The expansion / contraction mechanism unit 4 includes a drive unit 40 and an expansion / contraction unit 41. In addition, the frame 3 is installed in the front-end | tip part of the expansion-contraction part 41 extending in the horizontal direction. The drive unit 40 is configured by a motor, a gear, and the like, and when the drive unit 40 is driven, the expansion / contraction unit 41 performs an expansion / contraction operation. The frame 3 moves in the vertical direction following the expansion / contraction operation of the expansion / contraction part 41.

  Therefore, when the expansion / contraction part 41 performs an operation of contraction and moves downward, the frame 3 also moves downward. By this operation, the screen 2 moves downward while being wound around the spring roll 50. Conversely, when the expansion / contraction part 41 is extended and moved upward, the frame 3 also moves upward. By this operation, the screen 2 moves upward against the urging force of the spring roll 50.

Next, fixing of one end side (upward center position display area 23 </ b> A) of the screen 2 and the frame 3 will be described.
On the upper surface 3 a of the frame 3, a holding portion 30 that holds the first hole portion 24 and the second hole portion 25 as the center position display portion of the center position display portion area 23 </ b> A of the screen 2 is formed. The holding unit 30 includes a substantially cylindrical first protrusion 31 at a position on the YZ plane that is parallel to the optical axis A of the projector 6. The holding part 30 has a plurality of second protrusions 32 formed in a substantially cylindrical shape at equal intervals P in the left-right direction with the first protrusion 31 as the center.

  The first protrusion 31 is inserted through the first hole 24 of the center position display area 23 and holds the screen 2. The second protrusion 32 is inserted through the second hole 25 in the center position display area 23 and holds the screen 2. Therefore, the diameters of the first protrusion 31 and the second protrusion 32 are formed corresponding to the hole diameters of the first hole 24 and the second hole 25. Further, one first protrusion 31 is formed, and the second protrusion 32 is formed corresponding to the number of second holes 25.

  As described above, in order to hold the screen 2 on the frame 3, the first hole 24 of the screen 2 is inserted into the first protrusion 31, and the second holes 25 are respectively corresponding to the second protrusions. 32. In this embodiment, this assembly is performed by an operator. In addition, this assembly process is a screen holding process in the present embodiment.

  After the screen holding step is completed, the cover member 8 that covers the center position display area 23A held by the frame 3 from above is installed. The cover member 8 has a length equal to or greater than the width of the screen 2, covers the entire center position display area 23 </ b> A, and also includes a first hole 24 and a second hole from the holding section 30. 25 is prevented from coming off.

  As described above, when the screen device 1 is assembled, the optical axis A of the projection light L from the projector 6 and the central axis B in the left-right direction of the screen 2 (display area 21) can be matched. In other words, a plane including the central axis B and the optical axis L intersects the surface 20A of the screen 2 substantially perpendicularly. Thereby, the projection light L emitted from the projector 6 is projected into the display area 21 of the screen 2. The projection light L projected into the display area 21 is efficiently reflected to the viewer side by the reflective film 202 of the screen 2. Further, when unnecessary external light from a fluorescent lamp or the like is incident on the screen 2, it is absorbed by the inner surface 201A of the recess 201 where the reflective film 202 is not formed, so that it is difficult to reflect it on the viewer side. Can improve contrast performance.

According to the embodiment described above, the following effects can be obtained.
According to the screen 2 of the present embodiment, the screen base material 20 includes the first hole portion 24 and the second hole portion 25 as center position display portions in the vertical direction. Moreover, the display area 21 which reflects and displays the projection light L is provided, and the center position display part (first hole part 24) is the center of the display area 21 in the left-right direction (center axis B). It is formed on the outside. In addition, the display area 21 has a plurality of concave portions 201 formed in a bilaterally symmetric and vertically asymmetrical arrangement, whereby the horizontal axis of the display area 21 and the optical axis A of the projection light L are arranged. It becomes easy to match. Further, since the center position display part is formed outside the display area 21, it does not affect the projection light L.

  According to the screen 2 of the present embodiment, the center position display unit can be realized with a simple configuration called a hole (first hole 24).

  According to the screen 2 of the present embodiment, the center position display portion has a plurality of second holes in the left-right direction with the first hole 24 as the center, thereby ensuring the level of the screen 2 or the display area 21. can do. Further, when the screen 2 is fixed to the frame 3 of the screen device 1, the first hole 24 and the second hole 25 can be used to secure and fix the level.

  According to the screen 2 of the present embodiment, by having the boundary display unit 26 that indicates the boundary between the display region 21 and the non-display region 22, the mask 120 can be easily installed using the boundary display unit 26 as a guide.

  According to the screen device 1 of the present embodiment, the light of the projection light L is obtained by holding the center position display part (first hole part 24, second hole part 25) of the screen 2 by the holding part 30 of the frame 3. It becomes easy to match with the axis A. Further, the screen 2 can be fixed while ensuring the level.

  According to the screen device 1 of the present embodiment, by providing the winding mechanism unit 5 and the expansion / contraction mechanism unit 4, the screen 2 is expanded at the time of use, and the screen 2 is wound at the end to be compactly accommodated inside the housing 7. be able to.

  According to the screen device 1 of the present embodiment, the projector 6 is installed in the housing, and the optical axis A of the projection light L projected from the projector 6 and the central axis B in the left-right direction of the display area 21 on the screen 2 Substantially match each other, it is possible to realize the screen device 1 that efficiently reflects the projection light L incident on the screen 2 to the viewer side and obtains a high-brightness and high-contrast image.

  According to the screen manufacturing method of the present embodiment, the center position display portion forming step 103 is provided, and the center position display portion is formed, whereby the center axis B of the screen 2 and the optical axis A of the projection light L are obtained. A screen 2 that can be easily matched can be manufactured.

  According to the screen manufacturing method of the present embodiment, the center position display portion forming step 103 includes the first hole forming step 103B, and the first center outside the display region 21 with the central axis B in the left-right direction of the display region 21. The hole 24 is formed. Thereby, a center position display part can be constituted simply.

  According to the screen manufacturing method of the present embodiment, the center position display portion forming step 103 includes the second hole forming step 103C in which the second hole 25 is formed, so that the level of the screen 2 (display area) is increased. A screen 2 that can be secured can be manufactured. In addition, when the screen 2 is fixed to the frame 3, the screen 2 that can secure and fix the horizontality can be manufactured by using the first hole portion 24 and the second hole portion 25.

  According to the method for manufacturing a screen of the present embodiment, the reflective film forming process 104 includes the mask setting process 104A, so that the display area 21 is displayed using the boundary display part 26 formed in the boundary display part forming process 102 as a guide. Since the mask 120 can be placed in a region other than that, it is easy to form the reflective film 202 only in the display region 21.

  According to the screen manufacturing method of the present embodiment, the reflective film forming step 104 includes the holding step 104B, whereby the screen base 20 is held on a predetermined member of the screen holding frame 131 to form the reflective film 202. Thus, the efficiency of forming the reflective film 202 can be improved.

  According to the screen manufacturing method of the present embodiment, the base material deformation step 101 and the boundary display portion formation step 102 are performed as a common step, so that the base material deformation step 101 is performed to form the recess 201. In doing so, the boundary display part forming step 102 can also be implemented to form the boundary display part 26. Thereby, the boundary display part 26 can be formed efficiently.

  According to the screen manufacturing method of the present embodiment, the screen 2 is held on the frame 3 using the center position display part (the first hole part 24 and the second hole part 25), including the screen holding process. Thereby, the screen 2 can be secured to the frame 3 while ensuring the level, and the center axis B in the left-right direction of the display area 21 and the optical axis A of the projection light L can be easily matched. The device 1 can be manufactured.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the scope of the invention. A modification will be described below.

  In the screen 2 of the embodiment, the reflective film 202 is formed in the display area 21, and the center position display portion is formed outside the display area 21 on the central axis in the horizontal direction of the display area 21. However, the present invention is not limited to this, and even when the display region 21 is not set, a center position display unit that clearly indicates the center position of the screen base material 20 in the left-right direction may be provided. In this case, the surface 20A of the screen substrate 20 that is an area other than the center position display section can be used as a display area, and the optical axis of the projection light emitted from the projector can be easily matched with the center position display section. Can do.

  The screen 2 of the embodiment is assembled as the screen device 1. However, the present invention is not limited to this, and the screen 2 alone may be used. In that case, the screen 2 is installed on a wall or the like, and projection light is projected onto the screen 2 from a projector placed on a desk. Then, the position of the range of the projection light projected from the projector is adjusted so as to be within the display area 21, and the optical axis A of the projection light coincides with the central axis B in the horizontal direction of the display area 21 of the screen 2 ( Adjust the position of the projector so that it intersects. In this case, since the first hole 24 (24A, 24B) formed on the central axis B can be used as a reference (standard), adjustment is also easy.

  Even when used in this way, the projection light projected from the projector is efficiently reflected to the viewer side by the reflection film 202 of the screen 2. In addition, when unnecessary external light from a fluorescent lamp or the like is incident on the screen 2, it is absorbed by the inner surface 201A of the concave portion 201 where the reflective film 202 is not formed, so that it can be difficult to reflect on the viewer side. Thus, the contrast performance can be improved.

  The screen 2 of the embodiment includes the center position display unit in the vertical direction, but may be provided on at least one end side in the vertical direction.

  The screen 2 of the embodiment has a plurality of second holes 25. However, at least one second hole 25 may be provided in the left-right direction with the first hole 24 as the center.

  In the screen 2 of the embodiment, the first hole 24 and the second hole 25 are formed in a round hole shape. However, the present invention is not limited to this, and the first hole portion 24 may be formed in a round hole shape, and the second hole portion 25 may be formed in an elliptic hole shape.

  In the screen 2 of the embodiment, the boundary display unit 26 is formed in the outside display area 22 at the four corners of the display area 21. However, the boundary display portion 26 is not limited to being formed at the four corner portions, and may be formed at a position where the boundary between the display region 21 and the non-display region 22 can be shown. Moreover, although the boundary display part 26 of this embodiment has a rectangular shape, it is not limited to a shape. Moreover, although the boundary display part 26 of this embodiment is formed in the concave shape, it may be formed in the convex shape.

  In the screen 2 of the embodiment, the center position display part has a first hole part 24 and a second hole part 25. However, only the first hole 24 may be provided. In this case, the screen 2 may be held by inserting only the first hole 24 into the first protrusion 31 of the frame 3.

  When the reflective film forming step 104 is completed, the screen 2 of the embodiment cuts the center position display area 23B positioned in the downward direction in the subsequent step. However, it does not have to be cut, and in that case, a screen base material for winding may be stuck and extended on the surface 20A of the center position display area 23B.

  In the screen manufacturing process 100 of the embodiment, in the center position mark forming process 103A of the center position display part forming process 103, the first holes 24A, 24B, the second holes 25A, 25B, etc. are formed at the center positions. As a mark, a substantially hemispherical recess 231 is formed. However, the mark is not limited to this. For example, an arrow shape is formed as a mark so that the tip position of the arrow indicates the center of the hole, or a thin “+” shape is formed as a mark at the hole center. It may be to do.

  In the screen manufacturing process 100 of the embodiment, after the base material deformation process 101, a center position display part forming process 103 (a first hole forming process 103B and a second hole forming process 103C) is performed. However, the present invention is not limited to this, and after performing the center position display portion formation step 103, the first hole portion 24 and the second hole portion 25 formed in this step are used as reference guide holes, and the base material deformation step 101 is performed. It may be done.

  The screen 2 of the embodiment has a plurality of concave portions 201 formed in a concave shape. However, it is not limited to a concave shape, and may have a plurality of convex portions formed in a convex shape. In this case, the arrangement of the convex portions may be the same as the arrangement of the concave portions 201 of the present embodiment. Further, the reflective film may be formed in the same manner as the reflective film forming step 104 of the present embodiment, and may be selectively formed on the outer surface of the convex portion.

  In the screen 2 of the embodiment, the reflective film 202 is formed by a vapor deposition method. However, it is not limited to vapor deposition, and may be formed by sputtering or the like.

  DESCRIPTION OF SYMBOLS 1 ... Screen apparatus, 2 ... Screen, 3 ... Frame, 4 Expansion / contraction mechanism part, 5 ... Winding mechanism part, 6 ... Projector, 20 ... Screen base material, 21 ... Display area, 22 ... Outside display area, 23 ... Center Position display area 24, 1st hole, 25 ... 2nd hole, 26 ... Boundary display section, 30 ... Holding section, 101 ... Substrate deformation process, 102 ... Boundary display section forming process, 103 ... Center position display Part forming step, 103B ... first hole forming step, 103C ... second hole forming step, 104 ... reflective film forming step, 104B ... holding step, 201 ... recess, 202 ... reflective film, A ... optical axis, B ... Central axis, L ... projection light.

Claims (15)

A screen having a screen base material that displays by reflecting the projected light,
The screen base material is provided with a center position display section that clearly indicates the center position in the left-right direction of the screen base material on at least one end side in the vertical direction. The screen according to claim 1,
The screen base material includes a display area for displaying by reflecting the projection light,
The screen, wherein the center position display unit is formed outside the display area at a center position in the left-right direction of the display area. The screen according to claim 2,
The center position display unit has a first hole, and the screen is characterized in that: The screen according to claim 3,
The said center position display part has at least 1 2nd hole part in the left-right direction centering | focusing on the said 1st hole part, The screen characterized by the above-mentioned. It is a screen as described in any one of Claims 2-4, Comprising:
A screen comprising a boundary display unit that indicates a boundary between the display area and the outside of the display area. The screen according to any one of claims 1 to 5,
A frame for holding the screen,
The screen device according to claim 1, wherein the frame includes a holding unit that holds the center position display unit of the screen. The screen device according to claim 6,
A winding mechanism for winding the screen;
A screen device comprising: an expansion / contraction mechanism for expanding and contracting the screen. The screen device according to claim 6 or 7, wherein
A projector that modulates light from a light source to form the projection light and projects the light toward the screen;
An optical axis of projection light projected from the projector and the center position of the screen substantially coincide with each other. A method of manufacturing a screen having a screen base material that displays by reflecting projected light,
A center position display portion forming step of forming a center position display portion that clearly indicates a center position in the left-right direction of the screen base material on at least one end side in the up-down direction of the screen base material; A method for manufacturing a screen. A method of manufacturing a screen according to claim 9,
The screen base material includes a display area for displaying by reflecting the projection light,
The center position display portion forming step includes a first hole forming step of forming a first hole portion outside the display region at the center position in the left-right direction of the display region. Method. It is a manufacturing method of the screen of Claim 10, Comprising:
The center position display part forming step includes a second hole forming step of forming at least one second hole portion in the left-right direction with the first hole portion as a center. It is a manufacturing method of the screen of Claim 11, Comprising:
A base material deformation step of deforming the screen base material so as to have a plurality of concave portions or convex portions in a bilaterally symmetrical and vertically asymmetrical arrangement with respect to the display region;
A reflective film forming step of selectively forming a reflective film with respect to the concave portion or the convex portion, and
The reflective film forming step includes a holding step of holding the first hole and the second hole formed in the center position display portion forming step in a predetermined member. . It is a manufacturing method of the screen of Claim 11, Comprising:
A method for manufacturing a screen, comprising: a boundary display portion forming step of forming a boundary display portion indicating a boundary between the display region and the outside of the display region. A method of manufacturing a screen according to claim 13,
A base material deforming step for deforming the screen base material so as to have a plurality of concave portions or convex portions in a bilaterally asymmetrical arrangement with respect to the display area;
The method for manufacturing a screen, wherein the base material deforming step and the boundary display portion forming step are performed as a common step.   A screen holding step of holding the screen on a frame using the center position display unit with respect to the screen manufactured by the method for manufacturing a screen according to any one of claims 9 to 14. A method of manufacturing a screen device.

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