JP4524853B2 - Screen mounting device - Google Patents

Screen mounting device Download PDF

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Publication number
JP4524853B2
JP4524853B2 JP2000139971A JP2000139971A JP4524853B2 JP 4524853 B2 JP4524853 B2 JP 4524853B2 JP 2000139971 A JP2000139971 A JP 2000139971A JP 2000139971 A JP2000139971 A JP 2000139971A JP 4524853 B2 JP4524853 B2 JP 4524853B2
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JP
Japan
Prior art keywords
screen
side
pressing member
frame
rib
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2000139971A
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Japanese (ja)
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JP2001318431A (en
Inventor
謙 三浦
聡 青木
Original Assignee
パナソニック株式会社
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Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to JP2000139971A priority Critical patent/JP4524853B2/en
Publication of JP2001318431A publication Critical patent/JP2001318431A/en
Application granted granted Critical
Publication of JP4524853B2 publication Critical patent/JP4524853B2/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

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Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a screen attachment device for attaching a screen constituting a projection type television receiver to a frame.
[0002]
[Prior art]
Conventionally, for example, Japanese Patent Laid-Open No. 7-56234 shown in FIG. 5 has been proposed as a method of attaching a screen for forming a projected image. In the configuration of FIG. 5, a screen 101 composed of a Fresnel lens sheet, a lenticular lens sheet, and a front panel is fastened and fixed to a frame body 102 with a metal fitting 103 and screws 104 or the like.
[0003]
[Problems to be solved by the invention]
However, the conventional configuration has a problem that the number of man-hours for attaching the screen is large because it is attached to the inner surface side of the frame 102 using the metal fitting 103 and the fastening screw 104.
Further, the screw 104 fastening portion is distorted to distort the front panel. As a result, the reflected image reflected on the front panel may be distorted to deteriorate the quality.
Furthermore, when the area of the projection light irradiated to the metal fitting is wide, the reflected light reflected from the metal fitting is incident on the screen, resulting in deterioration of image quality such as contrast. As a means for preventing the reflected light reflected from the metal fitting from entering the screen, for example, a non-woven fabric or the like is attached to the surface of the metal fitting.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the screen mounting device of the present invention is provided with any one of a flange, a recess, and a through hole on a rib standing on the inner surface side of the frame, and the flange, the recess, A hook-shaped locking piece provided in a part of the screen pressing member is elastically deformed and fitted into any one of the through holes. With this configuration, the screen can be attached to the inner surface of the frame body without using screws, and the time for attaching the screen can be reduced. In addition, the attached screen is not distorted and there is no deterioration in quality.
[0005]
Further, the present invention provides a screen pressing member having an uneven surface for preventing projection light from being reflected on the screen side in an area irradiated with projection light, thereby eliminating unnecessary light incident on the screen. , Can prevent image quality degradation.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the screen mounting apparatus in one Example of this invention is demonstrated using FIGS. 1-4.
[0007]
(Example)
FIG. 1 is an exploded perspective view of a screen mounting apparatus according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a main part showing a process of assembling the screen mounting apparatus of FIG. 1 and 2, reference numeral 1 denotes a screen, 2 denotes a frame body, 3 denotes a screen pressing member, 2a denotes a rib standing on the inner surface side of the frame body, 2b denotes a through-hole drilled in the middle of the rib, and 3a denotes a screen. A hook-shaped locking piece 3b extending in a cantilever shape on a part of the pressing member 3b is an end face of the screen pressing member.
[0008]
The frame 2 has a substantially U-shaped cross-section and is formed by forming a rectangular through window on the main surface (viewer side) facing the opening. In the vicinity of the top surface, bottom surface, and both side surfaces, ribs 2a are provided from the main surface toward the inner surface side (opening side).
A through hole 2b is formed in the middle of the rib 2a. A hook-shaped locking piece 3a to be described later is fitted into the through hole 2b. In place of the through-hole 2b, a recess in which the hook-shaped locking piece 3a is fitted, or a hook portion in which the hook-shaped locking piece 3a is locked may be provided. (Both are not shown.) The frame body 2 is formed in a substantially bottomed container shape having a main surface provided with a rectangular through window by injection molding a resin member, a magnesium alloy or the like.
[0009]
The screen pressing member 3 has a substantially Z-shaped cross-sectional shape, and is provided with a hook-shaped locking piece 3a extending in a cantilever shape in part. The screen pressing member 3 is formed by injection molding of a resin member, and the hook-shaped locking piece 3a is elastically deformable.
[0010]
The assembly process of the screen mounting device will be described with reference to FIGS. 2 (a), (b), and (c). First, the screen 1 is loaded into the frame 2 from the opening side of the frame 2. Next, the screen pressing member 3 is mounted so as to sandwich the rib 2b erected on the inner surface side of the frame 2 from the opening side. The mounting procedure is the order of FIGS. 2 (a), (b), and (c).
By fitting the hook-shaped locking piece 3a into the through hole 2b, the peripheral edge of the screen 1 can be pressed and fixed by the end face 3b.
[0011]
In the embodiment shown in FIG. 1, four screen pressing members corresponding to the four sides of the screen 1 are respectively fitted on the inner surface side of the frame body 2. Of course, it goes without saying that the screen pressing member may be formed as an integral rectangular frame instead of being divided into four. (Not shown)
With the above configuration, even if an external force is applied to the screen 1 in the X + direction, the screen retaining member 3 is not detached from the frame 2 because the hook-shaped locking piece 3a provided on the screen member 3 is fitted. .
Further, an external force in the Y-direction is applied to the hook-shaped locking piece 3a of the screen member 3, and the screen pressing member 3 can be detached from the frame 2 by pulling in the X + direction.
[0012]
Next, another screen pressing member in the present invention will be described. FIG. 3 is a cross-sectional view of the main part showing the relationship between the projection trajectory of the image light emitted from the lens 4 optical system and the screen, and FIG. 4 is an enlarged cross-sectional view of the main part of another screen pressing member in the present invention. .
3 and 4, reference numerals 3 and 30 are screen pressing members, 4 is a lens, 5 is a screen image size projection light (light incident on the screen), and 5a is an overscanning projection light. , 6 is the reflected light reflected by the surface of the member or the like, and 7 is an uneven surface.
[0013]
Another screen pressing member 30 according to the present invention is characterized in that an uneven surface 7 for preventing the projection light from being reflected on the screen 1 side is disposed in the region irradiated with the projection light. When the light (screen image size projection light 5 and overscanning projection light 5a) emitted from the lens is incident on the screen 1, as shown in FIG. The light 5 is directly incident on the screen 1 because there is no shielding until it reaches the screen 1.
[0014]
On the other hand, however, the over-scanning projection light 5a reaches the surface of the screen pressing member 30, and the projection light 5a reflected on the surface re-enters the screen 1 to cause deterioration in performance such as contrast. It becomes.
Therefore, as shown in FIG. 4, a configuration in which a sawtooth uneven surface 7 is disposed in a region of the screen pressing member 30 irradiated with the projection light 5a. As a result, the overscanned projection light 5a is not reflected to the screen 1 side, and performance such as contrast is not deteriorated as unnecessary light.
[0015]
【The invention's effect】
As described above, according to the present invention, the screen can be attached to the frame body with a screwless, and the number of attachment steps can be greatly reduced. Moreover, the screen distortion after attachment can be reduced, and the distortion of the reflected image reflected on the screen can also be reduced.
Furthermore, the uneven surface provided on the screen pressing member can prevent the incident light of the overscan from reaching the screen, thereby suppressing the decrease in contrast.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a screen mounting device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a main part showing a process of assembling the screen mounting device of FIG. FIG. 4 is an enlarged cross-sectional view of the main part of another screen pressing member according to the present invention. FIG. 5 is a cross-sectional view of a conventional screen fixing device.
DESCRIPTION OF SYMBOLS 1 Screen 2 Frame 2a Rib 2b Through-hole 3, 30 Screen pressing member 3a Saddle-shaped locking piece 3b End surface 4 Lens 5 Incident light 5a corresponding to screen image size Corresponds to overscan Incident light 6 Reflected light 7 Uneven surface

Claims (3)

  1. A rib that is stowed around the screen from the viewer side toward the opening side when the screen is stowed from the opening side, and at least one of a recess and a through hole provided in the rib; A frame comprising:
    When the screen is stored in the frame, the screen is inserted from the opening side toward the viewer side, protrudes from the opening side toward the viewer side, and presses the screen. A screen presser provided with an elastically deformable hook-shaped locking piece that protrudes toward the viewer and sandwiches the rib together with the screen pressing portion and fits into at least one of the recess and the through hole of the rib Members,
    A screen mounting apparatus.
  2. Corresponding to four screens pressing member, characterized in that it is fitted on the inner surface side of the frame according to claim 1 Symbol placement of screen mounting apparatus the four sides of the screen.
  3. 3. The screen mounting apparatus according to claim 1, wherein an uneven surface for preventing the projection light from being reflected on the screen side is disposed in an area of the screen pressing member irradiated with the projection light.
JP2000139971A 2000-05-12 2000-05-12 Screen mounting device Expired - Fee Related JP4524853B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000139971A JP4524853B2 (en) 2000-05-12 2000-05-12 Screen mounting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000139971A JP4524853B2 (en) 2000-05-12 2000-05-12 Screen mounting device

Publications (2)

Publication Number Publication Date
JP2001318431A JP2001318431A (en) 2001-11-16
JP4524853B2 true JP4524853B2 (en) 2010-08-18

Family

ID=18647331

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Application Number Title Priority Date Filing Date
JP2000139971A Expired - Fee Related JP4524853B2 (en) 2000-05-12 2000-05-12 Screen mounting device

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100541451B1 (en) 2003-08-20 2006-01-10 삼성전자주식회사 Display apparatus and control method thereof
KR100662114B1 (en) 2004-10-30 2006-12-27 엘지전자 주식회사 Projection television
JP6307972B2 (en) * 2014-01-21 2018-04-11 セイコーエプソン株式会社 Reflector, adjusting method, and position detection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6353532A (en) * 1986-08-23 1988-03-07 Sony Corp Screen fitting device
JPH0573844U (en) * 1992-03-12 1993-10-08 三菱電機株式会社 TV screen mounting device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6488531A (en) * 1987-09-30 1989-04-03 Hitachi Ltd Back surface projection type device
JPH0416444U (en) * 1990-05-31 1992-02-10
JPH06245178A (en) * 1993-02-16 1994-09-02 Sony Corp Rear projector
JPH06273852A (en) * 1993-03-19 1994-09-30 Matsushita Electric Ind Co Ltd Transmission type cabinet screen and its manufacture
JP3246116B2 (en) * 1993-08-20 2002-01-15 ソニー株式会社 Projection television screen mounting structure
JP3226405B2 (en) * 1994-01-28 2001-11-05 松下電器産業株式会社 Projection television screen device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6353532A (en) * 1986-08-23 1988-03-07 Sony Corp Screen fitting device
JPH0573844U (en) * 1992-03-12 1993-10-08 三菱電機株式会社 TV screen mounting device

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