JP3669113B2 - Optical filter mounting structure - Google Patents

Optical filter mounting structure Download PDF

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Publication number
JP3669113B2
JP3669113B2 JP12935897A JP12935897A JP3669113B2 JP 3669113 B2 JP3669113 B2 JP 3669113B2 JP 12935897 A JP12935897 A JP 12935897A JP 12935897 A JP12935897 A JP 12935897A JP 3669113 B2 JP3669113 B2 JP 3669113B2
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JP
Japan
Prior art keywords
optical filter
front frame
mounting structure
leaf spring
structure according
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
JP12935897A
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Japanese (ja)
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JPH10322625A (en
Inventor
一弘 水谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu General Ltd
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Fujitsu General Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu General Ltd filed Critical Fujitsu General Ltd
Priority to JP12935897A priority Critical patent/JP3669113B2/en
Publication of JPH10322625A publication Critical patent/JPH10322625A/en
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Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は、PDP(プラズマディスプレイパネル)等の表示面から不要に輻射する電磁波を遮蔽する光学フィルタの、電気的な接続が簡単に行える光学フィルタの取付構造に関する。
【0002】
【従来の技術】
図4は、従来の光学フィルタの取付構造の1例を示す要部の側面図(一部断面)である。PDP1を筐体の前面枠43等の中に収容してテレビ映像等を表示する表示装置を構成する。PDP1の表示面1aの前面には、PDP等から不要に輻射する電磁波を遮蔽する等の目的で透明電極42a等の導電体を形成した光学フィルタ42を装着する。光学フィルタ42の透明電極42aは、前面枠43の内側に立設したボス43bにビス45で係止した板バネ44を当接して、金属製の板バネ44を通して、前面枠43の内側等に形成した電磁波遮蔽用の筐体導電膜43aを通して接地される。しかし、このような光学フィルタの取付構造では、複数の板バネ44、ビス45などの部品点数が多くなるばかりでなく、組立工数も増大して不経済となる。また、板バネ44と筐体導電膜43aとの間の接触インピーダンスにより、光学フィルタ42の透明電極42aの接地インピーダンスが大きくなり、電磁波の遮蔽効果が不十分となるおそれもある。
【0003】
【発明が解決しようとする課題】
本発明は上記問題点に鑑みなされたもので、電磁波を遮蔽する光学フィルタを簡単にかつ確実に取り付ける技術を提供することを目的とする。
【0004】
【課題を解決するための手段】
表示装置の前面枠の内側に、光学フィルタに形成した導電体に当接して付勢する板バネを同前面枠と一体に形成して、同バネにより同光学フィルタに形成した導電体等を電気的に外部に接続するようにして、導電膜の外部接続のための部品点数を少なくするとともに接続インピーダンスを最小にする。
【0005】
【発明の実施の形態】
PDP(プラズマディスプレイパネル)等の表示装置の表示面の前面に取り付けて電磁波の遮蔽等を行う透明導電膜等の導電体を形成したアクリル板等からなる光学フィルタの取付構造において、同表示装置の前面枠の内側に、同光学フィルタに形成した導電体に当接して付勢する板バネを同前面枠と一体に形成して、同バネにより同光学フィルタに形成した導電体を電気的に外部に接続するようにする。
【0006】
前記表示装置の前面枠は合成樹脂とし、前記板バネは、同前面枠の一部を切り起こて板バネの形状に成形し、その板バネの表面に前面枠の内側に形成した電磁波遮蔽用の導電塗料等の導電膜と連続した導電膜を形成する。
【0007】
前記板バネは、金属等の導電体で作成した前面枠又は合成樹脂の前面枠の内側に形成した電磁波遮蔽用の金属板と一体に形成する。
【0008】
前記板バネが当接する光学フィルタの反対面に、同板バネとの間に同光学フィルタを挟持する鉤爪を設ける。
【0009】
前記鉤爪は前記光学フィルタの外側に撓む構造とする
【0010】
前記光学フィルタの電気的な接続は、前記板バネに代えて前記鉤爪を介して行う。
【0011】
前記板バネは前記前面枠の内側に当接する前記光学フィルタの反対面に当接するように形成する。
【0012】
【実施例】
図1は、本発明による光学フィルタ取付構造の1実施例の要部の側面図(一部断面)である。上記のようにPDP1を筐体の前面枠3等の中に収容してテレビ映像等を表示する表示装置を構成する。PDP1の表示面1aの前面には、PDP1等から不要に輻射する電磁波を遮蔽する等の目的で透明電極2a等の導電体を形成した光学フィルタ2を装着する。光学フィルタ2は例えばアクリル板などの透明な基板に蒸着等で透明な電極膜を形成して構成する。前面枠3は合成樹脂で作成し、その前面枠3の内側の一部を切り起こして板バネ4を成形する。板バネ4の光学フィルタの反対面には、前面枠3の内側に立設した例えば板状の柱5bに載置した鉤状の爪である鉤爪5を設ける。光学フィルタ2を板バネ4と鉤爪5の間に挟着すると、光学フィルタの透明電極2aが、前面枠3の内側および板バネ4の表面に形成した電磁波遮蔽用の筐体導電膜3aに接触して、筐体導電膜3aを通して接地される。
【0013】
鉤爪5を載置する柱5bは、例えば構成樹脂の前面枠と一体で形成した光学フィルタ2の外側に撓む構造とする。光学フィルタ2を装着するときは、鉤爪5は光学フィルタの端部に押されて柱5bが外側に撓み、光学フィルタ2が定位置に装着された後に元に戻り光学フィルタ2を挟持するようになる。前面枠3は電磁遮蔽用を兼ねて導電性の金属板等で構成することもできる。また、合成樹脂の前面枠の内側に、電磁遮蔽用の金属板等を内張りすることもできる。このような場合には、板バネ4はその金属板等の導電体と一体に形成することもできる。
【0014】
図2は、本発明による光学フィルタ取付構造の別の実施例の要部の側面図(一部断面)である。上記と同様にPDP1の表示面1aの前面に透明電極22aを形成した光学フィルタ22を装着する。光学フィルタ22の端部は、前面枠23の内側に前面枠23と一体で形成した板バネ24と鉤爪25で挟持して保持する。光学フィルタ22の透明電極22aは、鉤爪25の光学フィルタ22側に形成した筐体導電膜23aに接触して、透明電極23aを筐体導電膜23aを通して接地される。
【0015】
図3は、本発明による光学フィルタ取付構造の他の実施例の要部の側面図(一部断面)である。この例でも上記と同様にPDP1の表示面1aの前面に透明電極32aを形成した光学フィルタ32を装着する。光学フィルタ32の端部は、前面枠33の内側に前面枠33と一体で形成した板バネ34と前面枠33の間に挟持して保持する。光学フィルタ32の透明電極32aは、板バネ34の光学フィルタ32側に形成した筐体導電膜33aに接触して、透明電極33aを筐体導電膜33aを通して接地するようにする。
【0016】
【発明の効果】
表示装置の前面枠の内側に、光学フィルタに形成した導電膜等に当接して付勢する板バネを同前面枠と一体に形成して、同バネにより同光学フィルタに形成した導電体を電気的に外部に接続するようにすることにより、光学フィルタの導電体を外部に接続するための別部品が不要となるため、不品点数が少なくなり、組立工数が削減でき経済的となる。また、導電体の接続のためのインピーダンスも最小に抑えることが可能となり、電磁波の遮蔽効果を上げることができる。
【図面の簡単な説明】
【図1】本発明による光学フィルタ取付構造の1実施例の要部の側面図(一部断面)である。
【図2】本発明による光学フィルタ取付構造の別の実施例の要部の側面図(一部断面)である。
【図3】本発明による光学フィルタ取付構造の他の実施例の要部の側面図(一部断面)である。
【図4】従来の光学フィルタの取付構造の1例を示す要部の側面図(一部断面)である。
【符号の説明】
1 PDP(プラズマディスプレイパネル)
2 光学フィルタ
3 前面枠
4 板バネ
5 鉤爪
22 光学フィルタ
23 前面枠
24 板バネ
25 鉤爪
32 光学フィルタ
33 前面枠
34 板バネ
42 光学フィルタ
43 前面枠
44 板バネ
45 ネジ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical filter mounting structure that can easily make an electrical connection of an optical filter that shields electromagnetic waves radiated unnecessarily from a display surface such as a plasma display panel (PDP).
[0002]
[Prior art]
FIG. 4 is a side view (partial cross section) of a main part showing an example of a conventional optical filter mounting structure. The PDP 1 is accommodated in the front frame 43 or the like of the housing to constitute a display device that displays a television image or the like. On the front surface of the display surface 1a of the PDP 1, an optical filter 42 formed with a conductor such as a transparent electrode 42a is mounted for the purpose of shielding electromagnetic waves radiated from the PDP or the like unnecessarily. The transparent electrode 42 a of the optical filter 42 is in contact with a boss 43 b erected on the inner side of the front frame 43 with a plate spring 44 locked by a screw 45, and passes through a metal plate spring 44 to the inner side of the front frame 43. It is grounded through the formed electromagnetic wave shielding casing conductive film 43a. However, such an optical filter mounting structure not only increases the number of parts such as a plurality of leaf springs 44 and screws 45, but also increases the number of assembly steps, which is uneconomical. In addition, due to the contact impedance between the leaf spring 44 and the casing conductive film 43a, the ground impedance of the transparent electrode 42a of the optical filter 42 may increase, and the electromagnetic wave shielding effect may be insufficient.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique for easily and reliably mounting an optical filter that shields electromagnetic waves.
[0004]
[Means for Solving the Problems]
Inside the front frame of the display device, a plate spring that abuts against and urges a conductor formed on the optical filter is formed integrally with the front frame, and the conductor and the like formed on the optical filter by the spring are electrically connected. Therefore, the number of parts for external connection of the conductive film is reduced and the connection impedance is minimized.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
In an optical filter mounting structure made of an acrylic plate or the like formed with a conductive material such as a transparent conductive film that is attached to the front surface of a display device such as a plasma display panel (PDP) and shields electromagnetic waves, etc. A leaf spring that abuts and urges the conductor formed on the optical filter is formed integrally with the front frame on the inner side of the front frame, and the conductor formed on the optical filter is electrically connected to the outside by the spring. To connect to.
[0006]
The front frame of the display device is made of synthetic resin, and the leaf spring is formed by cutting and raising a part of the front frame into the shape of a leaf spring, and for electromagnetic wave shielding formed on the surface of the leaf spring inside the front frame. A conductive film continuous with the conductive film such as conductive paint is formed.
[0007]
The leaf spring is formed integrally with a metal plate for shielding electromagnetic waves formed inside a front frame made of a conductor such as metal or a front frame made of synthetic resin.
[0008]
A claw for holding the optical filter between the plate spring is provided on the opposite surface of the optical filter with which the plate spring abuts.
[0009]
The claw is structured to bend to the outside of the optical filter.
The optical filter is electrically connected via the claw instead of the leaf spring.
[0011]
The leaf spring is formed so as to contact the opposite surface of the optical filter that contacts the inside of the front frame.
[0012]
【Example】
FIG. 1 is a side view (partially cross-sectional view) of a main part of one embodiment of an optical filter mounting structure according to the present invention. As described above, the PDP 1 is accommodated in the front frame 3 or the like of the housing to constitute a display device that displays a television image or the like. On the front surface of the display surface 1a of the PDP 1, an optical filter 2 on which a conductor such as a transparent electrode 2a is formed is mounted for the purpose of shielding electromagnetic waves radiated unnecessarily from the PDP 1 or the like. The optical filter 2 is configured by forming a transparent electrode film on a transparent substrate such as an acrylic plate by vapor deposition or the like. The front frame 3 is made of synthetic resin, and a part of the inside of the front frame 3 is cut and raised to form the leaf spring 4. On the opposite surface of the leaf spring 4 to the optical filter, a claw 5 is provided, which is a claw-like claw placed on, for example, a plate-like column 5 b standing inside the front frame 3. When the optical filter 2 is sandwiched between the leaf spring 4 and the claw 5, the transparent electrode 2 a of the optical filter contacts the electromagnetic wave shielding casing conductive film 3 a formed on the inside of the front frame 3 and on the surface of the leaf spring 4. Then, it is grounded through the casing conductive film 3a.
[0013]
The pillar 5b on which the claw 5 is placed has a structure that bends to the outside of the optical filter 2 formed integrally with the front frame of the constituent resin, for example. When mounting the optical filter 2, the claw 5 is pushed by the end of the optical filter so that the column 5 b bends outward, and after the optical filter 2 is mounted at a fixed position, the optical filter 2 is returned to its original position and sandwiches the optical filter 2. Become. The front frame 3 can also be made of a conductive metal plate or the like for electromagnetic shielding. Further, a metal plate for electromagnetic shielding or the like can be lined inside the front frame of the synthetic resin. In such a case, the leaf spring 4 can be formed integrally with a conductor such as a metal plate.
[0014]
FIG. 2 is a side view (partially cross-sectional view) of a main part of another embodiment of the optical filter mounting structure according to the present invention. Similarly to the above, an optical filter 22 having a transparent electrode 22a formed thereon is attached to the front surface of the display surface 1a of the PDP 1. The end of the optical filter 22 is sandwiched and held by a leaf spring 24 and a claw 25 formed integrally with the front frame 23 inside the front frame 23. The transparent electrode 22a of the optical filter 22 contacts the casing conductive film 23a formed on the optical filter 22 side of the claw 25, and the transparent electrode 23a is grounded through the casing conductive film 23a.
[0015]
FIG. 3 is a side view (partially cross-sectional view) of a main part of another embodiment of the optical filter mounting structure according to the present invention. In this example as well, the optical filter 32 in which the transparent electrode 32a is formed is mounted on the front surface of the display surface 1a of the PDP 1 in the same manner as described above. The end of the optical filter 32 is sandwiched and held between a leaf spring 34 and a front frame 33 formed integrally with the front frame 33 inside the front frame 33. The transparent electrode 32a of the optical filter 32 is in contact with the housing conductive film 33a formed on the optical filter 32 side of the leaf spring 34 so that the transparent electrode 33a is grounded through the housing conductive film 33a.
[0016]
【The invention's effect】
Inside the front frame of the display device, a leaf spring that abuts against and urges the conductive film formed on the optical filter is formed integrally with the front frame, and the conductor formed on the optical filter by the spring is electrically connected. By connecting externally to the outside, there is no need for a separate part for connecting the conductor of the optical filter to the outside, so that the number of inferior parts is reduced and the number of assembling steps can be reduced, which is economical. In addition, the impedance for connecting the conductors can be minimized, and the electromagnetic wave shielding effect can be improved.
[Brief description of the drawings]
FIG. 1 is a side view (partially cross-sectional view) of a main part of one embodiment of an optical filter mounting structure according to the present invention.
FIG. 2 is a side view (partial cross section) of a main part of another embodiment of the optical filter mounting structure according to the present invention.
FIG. 3 is a side view (partially cross-sectional view) of a main part of another embodiment of the optical filter mounting structure according to the present invention.
FIG. 4 is a side view (partial cross section) of a main part showing an example of a conventional optical filter mounting structure.
[Explanation of symbols]
1 PDP (Plasma Display Panel)
2 Optical filter 3 Front frame 4 Plate spring 5 Claw 22 Optical filter 23 Front frame 24 Plate spring 25 Claw 32 Optical filter 33 Front frame 34 Plate spring 42 Optical filter 43 Front frame 44 Plate spring 45 Screw

Claims (7)

PDP(プラズマディスプレイパネル)等の表示装置の表示面の前面に取り付けて電磁波の遮蔽等を行う透明電極等の導電体を形成したアクリル板等からなる光学フィルタの取付構造において、同表示装置の前面枠の内側に、同導電体に当接して付勢する板バネを同前面枠と一体に成形して、同バネにより同光学フィルタに形成した導電体を電気的に外部に接続するようにすることを特徴とした光学フィルタ取付構造。In the mounting structure of an optical filter made of an acrylic plate or the like formed with a conductor such as a transparent electrode that is attached to the front surface of a display device such as a plasma display panel (PDP) and shields electromagnetic waves, etc., the front surface of the display device A leaf spring that abuts and urges against the conductor is formed integrally with the front frame inside the frame so that the conductor formed on the optical filter is electrically connected to the outside by the spring. An optical filter mounting structure characterized by that. 前記表示装置の前面枠は合成樹脂とし、前記板バネは、同前面枠の一部を切り起こして板バネの形状に形成し、同板バネの表面に同前面枠の内側に形成した電磁波遮蔽用の導電塗料等の導電膜と連続した導電膜を形成することを特徴とした請求項1記載の光学フィルタ取付構造。The front frame of the display device is made of synthetic resin, and the leaf spring is formed by cutting and raising a part of the front frame to form a leaf spring, and the electromagnetic shielding formed on the surface of the leaf spring inside the front frame. The optical filter mounting structure according to claim 1, wherein a conductive film continuous with a conductive film such as a conductive coating material is formed. 前記板バネは、金属板等の導電体で作成した前面枠又は合成樹脂の前面枠の内側に形成した電磁波遮蔽用の金属板と一体として形成することを特徴とした請求項1記載の光学フィルタ取付構造。2. The optical filter according to claim 1, wherein the leaf spring is formed integrally with an electromagnetic shielding metal plate formed inside a front frame made of a conductive material such as a metal plate or a synthetic resin front frame. Mounting structure. 前記板バネが当接する光学フィルタの反対面に同板バネとの間に同光学フィルタを挟持する鉤爪を設けることを特徴とした請求項1記載の光学フィルタ取付構造。2. The optical filter mounting structure according to claim 1, wherein a claw for holding the optical filter is provided between the plate spring and an opposite surface of the optical filter with which the plate spring abuts. 前記鉤爪は前記光学フィルタの外側に撓む構造とすることを特徴とした請求項4記載の光学フィルタ取付構造。The optical filter mounting structure according to claim 4, wherein the claw is configured to bend to the outside of the optical filter. 前記光学フィルタの電気的な接続は、前記板バネに代えて前記鉤爪を介して行うことを特徴とした請求項5記載の光学フィルタ取付構造。6. The optical filter mounting structure according to claim 5, wherein electrical connection of the optical filter is performed through the claw instead of the leaf spring. 前記板バネは前記前面枠の内側に当接する前記光学フィルタの反対面に当接するように形成することを特徴とした請求項1記載の光学フィルタ取付構造。2. The optical filter mounting structure according to claim 1, wherein the leaf spring is formed so as to contact an opposite surface of the optical filter that contacts the inside of the front frame.
JP12935897A 1997-05-20 1997-05-20 Optical filter mounting structure Expired - Fee Related JP3669113B2 (en)

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JP3669113B2 true JP3669113B2 (en) 2005-07-06

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US8456816B2 (en) 2009-03-19 2013-06-04 Mitsubishi Electric Corporation Structure assembled to panel

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KR100516939B1 (en) * 2003-07-28 2005-09-27 엘지전자 주식회사 Plasma display panel
KR100549066B1 (en) 2003-08-11 2006-02-06 삼성전자주식회사 Projector
JP4610975B2 (en) 2004-09-08 2011-01-12 オリンパス株式会社 Display device
US7605538B2 (en) 2005-06-10 2009-10-20 Lg Electronics Inc. Plasma display panel
KR100838572B1 (en) 2007-01-15 2008-06-19 주식회사 대우일렉트로닉스 Frame fixing device
JP4797035B2 (en) * 2008-02-27 2011-10-19 株式会社ソフイア Game machine
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8456816B2 (en) 2009-03-19 2013-06-04 Mitsubishi Electric Corporation Structure assembled to panel
DE112009004508B4 (en) * 2009-03-19 2013-07-04 Mitsubishi Electric Corp. On a control panel mounted arrangement

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