JPH04371921A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH04371921A JPH04371921A JP17468191A JP17468191A JPH04371921A JP H04371921 A JPH04371921 A JP H04371921A JP 17468191 A JP17468191 A JP 17468191A JP 17468191 A JP17468191 A JP 17468191A JP H04371921 A JPH04371921 A JP H04371921A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- printed wiring
- wiring board
- display panel
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 60
- 239000011888 foil Substances 0.000 claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 16
- 239000011521 glass Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、プリント配線板と液晶
表示パネルとを備えた液晶表示装置に係り、特に、液晶
表示パネルから発生するノイズの影響を除去し、プリン
ト配線板に搭載された各種電気部品の誤動作を防止する
手段に関する。[Industrial Field of Application] The present invention relates to a liquid crystal display device equipped with a printed wiring board and a liquid crystal display panel, and in particular, it eliminates the influence of noise generated from the liquid crystal display panel and is mounted on the printed wiring board. This invention relates to means for preventing malfunctions of various electrical components.
【０００２】0002
【従来の技術】液晶表示パネルは周知のように、透明な
電極端子群が形成された上ガラス基板および下ガラス基
板を、前記電極端子群を内側にし、かつこれらの電極端
子間に所望のセルギャップを介して貼りあわせ、そのセ
ルギャップ内に誘電体である液晶を封入したものである
ので、電極端子に駆動信号である交流化信号を印加する
と一種のコンデンサとして作用し、電極端子に交流化信
号を印加する毎に、当該交流化信号の立上りおよび立下
りに対応したノイズを発生する。2. Description of the Related Art As is well known, a liquid crystal display panel has an upper glass substrate and a lower glass substrate on which transparent electrode terminal groups are formed, with the electrode terminal groups inside, and a desired cell is placed between these electrode terminals. They are bonded together through a gap, and liquid crystal, which is a dielectric, is sealed in the cell gap, so when an alternating current signal, which is a driving signal, is applied to the electrode terminals, it acts as a kind of capacitor, causing the electrode terminals to become alternating current. Every time a signal is applied, noise corresponding to the rise and fall of the AC signal is generated.
【０００３】従来より、リードパターン群が形成され、
かつドライバＩＣなど各種の電気部品が搭載されたプリ
ント配線板と、電極端子群が形成され、ラバーコネクタ
を介してこの電極端子群が前記リードパターン群に接続
される液晶表示パネルとを備えた液晶表示装置において
は、これらプリント配線板とラバーコネクタと液晶表示
パネルとを一体に組合せる金枠のシールドを強化する等
の方法によって、液晶表示装置から発生するノイズが他
の装置に与える悪影響を防止している。Conventionally, lead pattern groups have been formed,
and a liquid crystal display panel comprising a printed wiring board on which various electrical components such as a driver IC are mounted, and a liquid crystal display panel on which a group of electrode terminals is formed and the group of electrode terminals is connected to the group of lead patterns via a rubber connector. In display devices, measures such as strengthening the shielding of the metal frame that integrates these printed wiring boards, rubber connectors, and liquid crystal display panels can be used to prevent noise generated from the liquid crystal display device from having an adverse effect on other devices. are doing.
【０００４】0004
【発明が解決しようとする課題】ところが、従来におい
ては、液晶表示パネルから発生したノイズがプリント配
線板に搭載された各種の電気部品に与える影響について
は何ら考慮されておらず、したがって液晶表示パネルと
プリント配線板との間には、ノイズを有効に遮蔽するた
めの手段が何ら設けられていない。液晶表示パネルとプ
リント配線板とを充分な間隔を隔てて設定できる場合に
は、ノイズの悪影響はさほど問題にならないが、近年液
晶表示装置も薄形化が最も重要な技術的課題の１つにな
っており、液晶表示パネルとプリント配線板上に搭載さ
れた各種の電気部品とがますます近接して配置される傾
向にあり、液晶表示パネルから発生したノイズがそれら
電気部品に悪影響を及ぼしやすくなっている。よって、
かかる薄形の液晶表示装置においては、液晶表示パネル
から発生するノイズのプリント配線板搭載部品に対する
有効な遮蔽手段が必要になる。[Problems to be Solved by the Invention] However, in the past, no consideration was given to the effects of noise generated from the liquid crystal display panel on the various electrical components mounted on the printed wiring board. No means for effectively shielding noise is provided between the circuit board and the printed wiring board. If the liquid crystal display panel and the printed wiring board can be separated by a sufficient distance, the negative effects of noise will not be much of a problem, but in recent years, making liquid crystal display devices thinner has become one of the most important technical issues. In recent years, liquid crystal display panels and various electrical components mounted on printed wiring boards have tended to be placed closer together, making it easier for noise generated from the liquid crystal display panel to adversely affect these electrical components. It has become. Therefore,
In such a thin liquid crystal display device, an effective means for shielding components mounted on a printed wiring board from noise generated from the liquid crystal display panel is required.
【０００５】本発明は、かかる課題を解決するためにな
されたものであって、誤動作のない信頼性に優れた液晶
表示装置を提供することを目的とするものである。The present invention has been made to solve the above problems, and an object of the present invention is to provide a highly reliable liquid crystal display device that is free from malfunctions.
【０００６】[0006]
【課題を解決するための手段】本発明は、前記の目的を
達成するため、リードパターン群が形成され、かつ各種
の電気部品が搭載されたプリント配線板と、電極端子群
が形成され、ラバーコネクタを介してこの電極端子群が
前記リードパターン群に接続される液晶表示パネルとを
備えた液晶表示装置において、前記プリント配線板と前
記液晶表示パネルとの間に導電性のノイズ遮蔽体を介設
し、そのノイズ遮蔽体を前記プリント配線板を介して接
地した。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a printed wiring board on which a group of lead patterns is formed and various electrical components are mounted, a group of electrode terminals is formed, and a rubber In a liquid crystal display device including a liquid crystal display panel in which the electrode terminal group is connected to the lead pattern group via a connector, a conductive noise shielding material is interposed between the printed wiring board and the liquid crystal display panel. The noise shield was grounded via the printed wiring board.
【０００７】また、プリント配線板と液晶表示パネルと
の間にバックライト用のエレクトロルミネセンス素子が
介設される液晶表示装置においては、前記エレクトロル
ミネセンス素子として、対向電極側の保護シートが金属
箔と樹脂フィルムとの積層体によって形成されたものを
用い、前記金属箔を前記プリント配線板を介して接地し
た。[0007] Furthermore, in a liquid crystal display device in which an electroluminescent element for a backlight is interposed between a printed wiring board and a liquid crystal display panel, the protective sheet on the opposite electrode side is made of metal as the electroluminescent element. A laminate of foil and resin film was used, and the metal foil was grounded via the printed wiring board.
【０００８】[0008]
【作用】プリント配線板と液晶表示パネルとの間に、接
地された導電体（ノイズ遮蔽体またはエレクトロルミネ
センスの金属箔）を介設すると、ノイズは導電体を伝っ
て接地され、プリント配線板に搭載された電気部品がノ
イズの影響を受けにくくなる。よって、それら電気部品
の誤動作が減少して、液晶表示装置の信頼性が向上する
。[Function] If a grounded conductor (noise shield or electroluminescent metal foil) is interposed between the printed wiring board and the liquid crystal display panel, noise will be transmitted through the conductor and grounded, causing the printed wiring board to electrical components mounted on the device are less susceptible to noise. Therefore, malfunctions of these electrical components are reduced, and the reliability of the liquid crystal display device is improved.
【０００９】[0009]
【実施例】まず、本発明の第１実施例を図１に基づいて
説明する。図１は第１実施例に係る液晶表示装置の側面
図である。Embodiment First, a first embodiment of the present invention will be described based on FIG. FIG. 1 is a side view of a liquid crystal display device according to a first embodiment.
【００１０】図１に示すように、本例の液晶表示装置は
、液晶表示パネル１と、プリント配線板２と、前記液晶
表示パネル１に形成された電極端子群と前記プリント配
線板に形成されたリードパターン群とを接続するラバー
コネクタ３と、これら液晶表示パネル１とプリント配線
板２とラバーコネクタ３とを一体に組合せる金枠４と、
導電性のノイズ遮蔽体５とから主に構成されている。As shown in FIG. 1, the liquid crystal display device of this example includes a liquid crystal display panel 1, a printed wiring board 2, a group of electrode terminals formed on the liquid crystal display panel 1, and a group of electrode terminals formed on the printed wiring board. a rubber connector 3 that connects the lead pattern group; a metal frame 4 that integrates the liquid crystal display panel 1, printed wiring board 2, and rubber connector 3;
It is mainly composed of a conductive noise shielding body 5.
【００１１】液晶表示パネル１は、上ガラス基板６、下
ガラス基板７、これら上下両ガラス基板６、７の間に封
入された液晶（図示せず）、前記上ガラス基板６の外面
に被着された上偏光板８、前記下ガラス基板７の外面に
被着された下偏光板９より構成されている。上ガラス基
板６は、下ガラス基板７よりも幅広に形成されており、
これら上下両ガラス基板６、７は、上ガラス基板６の左
右両側辺部が下ガラス基板７の左右両側辺部より外方に
延出するようにして貼り合わされている。この延出部分
６ａには、外部接続用の電極端子群（図示せず）が形成
されている。The liquid crystal display panel 1 includes an upper glass substrate 6, a lower glass substrate 7, a liquid crystal (not shown) sealed between the upper and lower glass substrates 6, 7, and a liquid crystal (not shown) adhered to the outer surface of the upper glass substrate 6. A lower polarizing plate 9 is attached to the outer surface of the lower glass substrate 7. The upper glass substrate 6 is formed wider than the lower glass substrate 7,
These upper and lower glass substrates 6 and 7 are bonded together such that the left and right sides of the upper glass substrate 6 extend outward from the left and right sides of the lower glass substrate 7. A group of electrode terminals (not shown) for external connection is formed in this extending portion 6a.
【００１２】プリント配線板２は、絶縁性の基板の表面
にリードパターンやアースパターンなどの所望の配線パ
ターン（図示せず）をプリントしたものであって、裏面
側に液晶表示パネル駆動用のドライバＩＣをはじめとす
る所望の電気部品Ａが搭載されている。The printed wiring board 2 is an insulating substrate on which desired wiring patterns (not shown) such as lead patterns and ground patterns are printed on the front surface, and a driver for driving the liquid crystal display panel on the back side. Desired electrical components A including an IC are mounted.
【００１３】ラバーコネクタ３は、シリコンゴム等のゴ
ムを母材とし、その一部にカーボン等の導電粉を混入し
て導電性をもたせたものであって、前記液晶表示パネル
１に形成された電極端子群およびプリント配線板２に形
成されたリードパターンと同一ピッチで長手方向に絶縁
層と導電層とが交互に積層されている。The rubber connector 3 is made of rubber such as silicone rubber as a base material, and a part thereof is made conductive by mixing conductive powder such as carbon, and is formed on the liquid crystal display panel 1. Insulating layers and conductive layers are alternately laminated in the longitudinal direction at the same pitch as the electrode terminal group and the lead patterns formed on the printed wiring board 2.
【００１４】ノイズ遮蔽体５は、例えばアルミニウム箔
などの金属箔１０の表裏面を絶縁性の樹脂１１でラミネ
ートしたものであって、樹脂層１１の端部から露出され
た金属箔１０をプリント配線板２に形成されたアースパ
ターンに電気的に接続することによって、プリント配線
板２に搭載された各電気部品のノイズ遮蔽を行なう。The noise shielding body 5 is made by laminating the front and back surfaces of a metal foil 10 such as aluminum foil with an insulating resin 11, and the metal foil 10 exposed from the end of the resin layer 11 is printed wiring. By electrically connecting to the ground pattern formed on the board 2, each electrical component mounted on the printed wiring board 2 is shielded from noise.
【００１５】前記液晶表示パネル１およびノイズ遮蔽体
５をプリント配線板２に実装するに際しては、まず、ノ
イズ遮蔽体５をプリント配線板２のノイズを遮蔽しよう
とする部分に置き、樹脂層１１の端部から露出された金
属箔１０をプリント配線板２に形成されたアースパター
ンに電気的に接続する。次いで、プリント配線板２のリ
ードパターン上にラバーコネクタ３を設定したのち、上
ガラス基板６の延出部分６ａをラバーコネクタ３に圧接
し、上ガラス基板６およびプリント配線板２の外面を金
枠４にて固定する。これにより、上ガラス基板６の各電
極端子群は、ラバーコネクタ３の導電層を介してプリン
ト配線板２の各リードパターン群に導通される。When mounting the liquid crystal display panel 1 and the noise shield 5 on the printed wiring board 2, the noise shield 5 is first placed on the part of the printed wiring board 2 where noise is to be shielded, and then the resin layer 11 is The metal foil 10 exposed from the end is electrically connected to a ground pattern formed on the printed wiring board 2. Next, after setting the rubber connector 3 on the lead pattern of the printed wiring board 2, the extending portion 6a of the upper glass substrate 6 is pressed against the rubber connector 3, and the outer surfaces of the upper glass substrate 6 and the printed wiring board 2 are attached to a metal frame. Fix at step 4. Thereby, each electrode terminal group on the upper glass substrate 6 is electrically connected to each lead pattern group on the printed wiring board 2 via the conductive layer of the rubber connector 3.
【００１６】前記実施例の液晶表示装置は、液晶表示パ
ネル１とプリント配線板２との間に接地された導電性の
ノイズ遮蔽体を介設したので、プリント配線板２に搭載
された電気部品Ａがノイズの影響を受けにくく、電気部
品Ａの誤動作が減少するので液晶表示装置の信頼性を向
上させることができる。In the liquid crystal display device of the above embodiment, a grounded conductive noise shield is interposed between the liquid crystal display panel 1 and the printed wiring board 2, so that the electrical components mounted on the printed wiring board 2 Since A is less susceptible to noise and malfunctions of the electrical component A are reduced, the reliability of the liquid crystal display device can be improved.
【００１７】次に、本発明の第２実施例を図２および図
３に基づいて説明する。図２は第２実施例に係る液晶表
示装置の側面図であって、２１はエレクトロルミネセン
ス素子を示し、その他図１と同一の部分には同一の符号
が表示されている。本発明の第２実施例は、図２に示す
ように、バックライトとしてエレクトロルミネセンス素
子２１が液晶表示パネル１とプリント配線板２との間に
設けられている場合に、このエレクトロルミネセンス素
子２１を利用してノイズを遮蔽することを特徴とする。Next, a second embodiment of the present invention will be explained based on FIGS. 2 and 3. FIG. 2 is a side view of a liquid crystal display device according to a second embodiment, in which reference numeral 21 indicates an electroluminescent element, and other parts that are the same as those in FIG. 1 are denoted by the same reference numerals. In the second embodiment of the present invention, as shown in FIG. 2, when an electroluminescent element 21 is provided as a backlight between a liquid crystal display panel 1 and a printed wiring board 2, 21 to block out noise.
【００１８】エレクトロルミネセンス素子２１は、図３
に拡大して示すように、透明シート２２と、透明シート
２２の内面に形成された透明電極２３と、所望の螢光体
および誘電体とからなる発光層２４と、アルミニウム等
の金属箔からなる対向電極２５と、吸湿層２６と、これ
ら透明シート２２、透明電極２３、発光層２４、対向電
極２５、および吸湿層２６の積層体を密封する保護シー
ト２７とからなる。さらに、本実施例で用いられるエレ
クトロルミネセンス素子２１は、保護シート２７が例え
ばアルミニウム等の金属箔２８とその表裏両面に積層さ
れた絶縁性の樹脂フィルム２９とから構成されている。The electroluminescent element 21 is shown in FIG.
As shown in an enlarged view, a transparent sheet 22, a transparent electrode 23 formed on the inner surface of the transparent sheet 22, a light-emitting layer 24 made of a desired phosphor and dielectric, and a metal foil made of aluminum or the like. It consists of a counter electrode 25, a moisture absorption layer 26, and a protective sheet 27 that seals the laminate of the transparent sheet 22, transparent electrode 23, light emitting layer 24, counter electrode 25, and moisture absorption layer 26. Further, in the electroluminescent element 21 used in this embodiment, the protective sheet 27 is composed of a metal foil 28 made of, for example, aluminum, and an insulating resin film 29 laminated on both the front and back surfaces of the metal foil 28.
【００１９】前記エレクトロルミネセンス素子２１は、
樹脂フィルム２９の一部を剥がして金属箔２８の一部が
外部に露出され、その露出部分がプリント配線板２に形
成されたアースパターンに電気的に接続される。これに
よって、特別なノイズ遮蔽体を設けることなく、プリン
ト配線板２に搭載された各電気部品Ａのノイズ遮蔽を実
現する。もちろん、エレクトロルミネセンス素子２１の
電極端子は、プリント配線板２のリードパターンに接続
され、液晶表示パネル１のバックライトとしても機能す
る。The electroluminescent element 21 includes:
A portion of the resin film 29 is peeled off to expose a portion of the metal foil 28 to the outside, and the exposed portion is electrically connected to a ground pattern formed on the printed wiring board 2. This realizes noise shielding of each electrical component A mounted on the printed wiring board 2 without providing a special noise shield. Of course, the electrode terminals of the electroluminescent element 21 are connected to the lead patterns of the printed wiring board 2 and also function as a backlight for the liquid crystal display panel 1.
【００２０】第２実施例の液晶表示装置は、バックライ
ト用のエレクトロルミネセンス素子２１をノイズ遮蔽体
として利用したので、特別なノイズ遮蔽体を付設する必
要がなく、安価に実施できる。Since the liquid crystal display device of the second embodiment uses the electroluminescent element 21 for the backlight as a noise shield, there is no need to attach a special noise shield, and it can be implemented at low cost.
【００２１】[0021]
【発明の効果】以上説明したように、本発明によると、
液晶表示パネルとプリント配線板との間に、接地された
導電性のノイズ遮蔽体を介設したので、プリント配線板
に搭載された電気部品がノイズの影響を受けにくく、電
気部品の誤動作が減少するので液晶表示装置の信頼性を
向上させることができる。[Effects of the Invention] As explained above, according to the present invention,
A grounded conductive noise shield is interposed between the liquid crystal display panel and the printed wiring board, making the electrical components mounted on the printed wiring board less susceptible to noise and reducing malfunctions of electrical components. Therefore, the reliability of the liquid crystal display device can be improved.
【図１】第１実施例に係る液晶表示装置の断面図である
。FIG. 1 is a sectional view of a liquid crystal display device according to a first embodiment.
【図２】第２実施例に係る液晶表示装置の断面図である
。FIG. 2 is a sectional view of a liquid crystal display device according to a second embodiment.
【図３】エレクトロルミネセンス素子の要部拡大断面図
である。FIG. 3 is an enlarged sectional view of a main part of an electroluminescent device.
１ 液晶表示パネル ２ プリント配線板 ３ ラバーコネクタ ４ 金枠 ５ ノイズ遮蔽体 ２１ エレクトロルミネセンス素子 ２８ 金属箔 ２９ 樹脂フィルム 1. Liquid crystal display panel 2 Printed wiring board 3 Rubber connector 4 Gold frame 5 Noise shield 21 Electroluminescent element 28 Metal foil 29 Resin film
Claims (2)
種の電気部品が搭載されたプリント配線板と、電極端子
群が形成され、ラバーコネクタを介してこの電極端子群
が前記リードパターン群に接続される液晶表示パネルと
を備えた液晶表示装置において、前記プリント配線板と
前記液晶表示パネルとの間に導電性のノイズ遮蔽体を介
設し、そのノイズ遮蔽体を前記プリント配線板を介して
接地したことを特徴とする液晶表示装置。1. A printed wiring board on which a group of lead patterns is formed and on which various electrical components are mounted, a group of electrode terminals are formed, and the group of electrode terminals is connected to the group of lead patterns through a rubber connector. In the liquid crystal display device equipped with a liquid crystal display panel, a conductive noise shield is interposed between the printed wiring board and the liquid crystal display panel, and the noise shield is grounded via the printed wiring board. A liquid crystal display device characterized by:
種の電気部品が搭載されたプリント配線板と、電極端子
群が形成され、ラバーコネクタを介してこの電極端子群
が前記リードパターン群に接続される液晶表示パネルと
、これらプリント配線板と液晶表示パネルとの間に介設
されたバックライト用のエレクトロルミネセンス素子と
を備えた液晶表示装置において、前記エレクトロルミネ
センス素子として、対向電極側の保護シートが金属箔と
樹脂フィルムとの積層体によって形成されたものを用い
、前記金属箔を前記プリント配線板を介して接地したこ
とを特徴とする液晶表示装置。2. A printed wiring board on which a group of lead patterns is formed and on which various electrical components are mounted, a group of electrode terminals are formed, and the group of electrode terminals is connected to the group of lead patterns via a rubber connector. In a liquid crystal display device comprising a liquid crystal display panel, and an electroluminescent element for a backlight interposed between the printed wiring board and the liquid crystal display panel, the electroluminescent element on the opposite electrode side is used as the electroluminescent element. 1. A liquid crystal display device, characterized in that the protective sheet is formed of a laminate of metal foil and resin film, and the metal foil is grounded via the printed wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17468191A JP2954747B2 (en) | 1991-06-20 | 1991-06-20 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17468191A JP2954747B2 (en) | 1991-06-20 | 1991-06-20 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04371921A true JPH04371921A (en) | 1992-12-24 |
| JP2954747B2 JP2954747B2 (en) | 1999-09-27 |
Family
ID=15982836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17468191A Expired - Lifetime JP2954747B2 (en) | 1991-06-20 | 1991-06-20 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2954747B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0669627A2 (en) * | 1994-02-28 | 1995-08-30 | Canon Kabushiki Kaisha | Flat cable, connection device therefor and electric circuit apparatus |
| US6473146B1 (en) * | 1998-09-24 | 2002-10-29 | Samsung Electronics Co., Ltd. | Liquid crystal display device and a method for manufacturing a grounding device |
| JP2011186318A (en) * | 2010-03-10 | 2011-09-22 | Panasonic Corp | Display device and electronic equipment |
-
1991
- 1991-06-20 JP JP17468191A patent/JP2954747B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0669627A2 (en) * | 1994-02-28 | 1995-08-30 | Canon Kabushiki Kaisha | Flat cable, connection device therefor and electric circuit apparatus |
| EP0669627A3 (en) * | 1994-02-28 | 1996-06-26 | Canon Kk | Flat cable, connection device therefor and electric circuit apparatus. |
| US6027366A (en) * | 1994-02-28 | 2000-02-22 | Canon Kabushiki Kaisha | Flat cable, connection device therefor and electric circuit apparatus |
| US6473146B1 (en) * | 1998-09-24 | 2002-10-29 | Samsung Electronics Co., Ltd. | Liquid crystal display device and a method for manufacturing a grounding device |
| US7436467B2 (en) | 1998-09-24 | 2008-10-14 | Samsung Electronics Co., Ltd. | Display device with grounding protrusion |
| JP2011186318A (en) * | 2010-03-10 | 2011-09-22 | Panasonic Corp | Display device and electronic equipment |
| US8559192B2 (en) | 2010-03-10 | 2013-10-15 | Panasonic Corporation | Display device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2954747B2 (en) | 1999-09-27 |
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