JPS61177480A - Liquid crystal display unit - Google Patents
Liquid crystal display unitInfo
- Publication number
- JPS61177480A JPS61177480A JP1658585A JP1658585A JPS61177480A JP S61177480 A JPS61177480 A JP S61177480A JP 1658585 A JP1658585 A JP 1658585A JP 1658585 A JP1658585 A JP 1658585A JP S61177480 A JPS61177480 A JP S61177480A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- circuit board
- printed circuit
- metal 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.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は液晶表示装置に係り、特に液晶表示素子と液晶
駆動用ＬＳＩを搭載したプリント基板の間に導電ゴムを
配置し、力１つ導電ゴムに圧縮を加えて液晶表示素子と
導電ゴムを金属パネルとプリント基板とで挾持固定して
なる液晶表示装置に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a liquid crystal display device, and in particular, conductive rubber is disposed between a liquid crystal display element and a printed circuit board on which an LSI for driving a liquid crystal is mounted. The present invention relates to a liquid crystal display device in which a liquid crystal display element and a conductive rubber are clamped and fixed between a metal panel and a printed circuit board by applying compression.
従来の液晶表示装置は、第１図、第２図及び第３図に示
すように、液晶表示素子１と液晶駆動用Ｌ８Ｉ２を搭載
したプリント基板３の間に導電ゴム４を配置し、また液
晶表示素子１上に金属パネル５を配置し、この金属パネ
ル５の端面に設けられた突出部５ａをプリント基板３に
挿通し、金属パネル５をプリント基板３偶に押付けて導
電ゴム４にある程度の圧縮力を加えて突出部５ａを折曲
げ、液晶表示素子１と導電ゴム４を金属パネル５とプリ
ント基板３とで挾持固定している。In the conventional liquid crystal display device, as shown in FIGS. 1, 2, and 3, a conductive rubber 4 is disposed between a liquid crystal display element 1 and a printed circuit board 3 on which a liquid crystal driving L8I2 is mounted. A metal panel 5 is arranged on the display element 1, a protrusion 5a provided on the end surface of the metal panel 5 is inserted into the printed circuit board 3, and the metal panel 5 is pressed against the printed circuit board 3, so that the conductive rubber 4 is exposed to a certain extent. The projecting portion 5a is bent by applying compressive force, and the liquid crystal display element 1 and the conductive rubber 4 are clamped and fixed between the metal panel 5 and the printed circuit board 3.
しかしながら、かかる従来構造は、人体及び液晶表示装
置のセットによる静電気が金属パネル５、液晶表示素子
１．導電ゴム４、プリント基板３の順に通り、液晶駆動
用Ｌ８Ｉ２を破壊し易いという問題点があった。However, in this conventional structure, static electricity due to the human body and the liquid crystal display device set is generated between the metal panel 5, the liquid crystal display element 1. There was a problem in that the conductive rubber 4 and the printed circuit board 3 were passed through in that order, and the liquid crystal driving L8I2 was easily destroyed.
本発明の目的は、プリント基板に搭載されている液晶駆
動用ＬＳＩの静電気による破壊を防止することができる
液晶表示装置を提供することにある。An object of the present invention is to provide a liquid crystal display device that can prevent damage to a liquid crystal driving LSI mounted on a printed circuit board due to static electricity.
本発明は上記目的を達成するために、液晶表示素子とプ
リント基板の間に導電ゴムを配置し、かつ導電ゴムに圧
縮を加えて液晶表示素子と導電ゴムを金属パネルとプリ
ント基板とで挟持固定してなる液晶表示装置において、
前記金属パネルを塗装し、前記プリント基板のアースに
接地したことを特徴とする。In order to achieve the above object, the present invention arranges conductive rubber between a liquid crystal display element and a printed circuit board, compresses the conductive rubber, and secures the liquid crystal display element and conductive rubber between a metal panel and a printed circuit board. In a liquid crystal display device made of
The metal panel is painted and grounded to the ground of the printed circuit board.
以下、本発明の一実施例を第４図により説明する。なお
、第１図乃至第３図と同じまたは相当部材には同一符号
を付し、その説明を省略する。金属パネル５には塗装６
を施してなる。またプリント基板３には金属パネル５の
突出部５ａが配置される部分にパッド７を設け、このパ
ッド７をアースに接地してなる。An embodiment of the present invention will be described below with reference to FIG. Note that the same or equivalent members as in FIGS. 1 to 3 are given the same reference numerals, and their explanations will be omitted. Painting 6 on metal panel 5
It is made by applying. Further, a pad 7 is provided on the printed circuit board 3 at a portion where the protruding portion 5a of the metal panel 5 is arranged, and this pad 7 is grounded.
このように、塗装６を施した金属パネル５であってもプ
リント基板３のアースに接地したパッド７に接触させる
だけで、金属パネル５の電気的接続を取ることができる
。In this way, even if the metal panel 5 is coated with the coating 6, the metal panel 5 can be electrically connected simply by contacting the pad 7 that is grounded to the ground of the printed circuit board 3.
液晶駆動用ＬＳＩ２が破壊する静電気の大きさを調べた
ところ、従来の液晶表示装置においては静電気６〜８Ｋ
Ｖであったが、本発明になる液晶表示装置においては静
電気１４〜１６ＫＶで静電気マージンが約２倍になり、
静電気に対する液晶駆動用Ｌ８Ｉ２の信頼性が向上する
。When we investigated the amount of static electricity that would destroy the LCD driving LSI 2, we found that static electricity in a conventional LCD device is 6 to 8K.
However, in the liquid crystal display device according to the present invention, the static electricity margin is approximately doubled when the static electricity is 14 to 16 KV.
The reliability of the liquid crystal driving L8I2 against static electricity is improved.
以上の説明から明らかなように、本発明ζこよれば、液
晶表示素子とプリント基板の間に導電ゴムを配置し、か
つ導電ゴムに圧縮を加えて液晶表示素子と導電ゴムを金
属パネルとプリント基板とで挟持固定してなる液晶表示
装置において、前記金属パネルを塗装し、かつ金属パネ
ルの突出部をプリント基板のアースされたパッドに接触
させることにより、金属パネルのアースへの電気的接続
が取れ、これによって静電気マージンが増え、静電気に
対する液晶駆動用ＬＳＩの信頼性が向上する。As is clear from the above description, according to the present invention, a conductive rubber is placed between a liquid crystal display element and a printed circuit board, and the conductive rubber is compressed to connect the liquid crystal display element and the conductive rubber to a metal panel. In a liquid crystal display device that is clamped and fixed to a substrate, the metal panel is electrically connected to the ground by painting the metal panel and bringing the protrusion of the metal panel into contact with a grounded pad on the printed circuit board. This increases the static electricity margin and improves the reliability of the liquid crystal driving LSI against static electricity.
第１図は従来の液晶表示装置を示し、ｌａ）は正面図、
ｆｂ）は側面図、第２図は第１図１ａｌのＡ−Ａ線断面
図、第３図は第２図のＢ部拡大図、第４図は本発明の一
実施例を示す第３図に対応した部分の拡大図である。
１・・・液晶表示素子、 ２・・・液晶駆動用ＬＳＩ
、３・・・プリント基板、 ４・・・導電ゴム、５
゛・・・金属パネル、 ５ａ・・・突出部、６・
・・塗装、 ７・・・パッド。
第１ＦｊＡ
（ａ） （ｂ）第２＠
第３図 第４図Figure 1 shows a conventional liquid crystal display device, la) is a front view,
fb) is a side view, FIG. 2 is a sectional view taken along line A-A in FIG. 1 1al, FIG. 3 is an enlarged view of part B in FIG. 2, and FIG. It is an enlarged view of the part corresponding to. 1...Liquid crystal display element, 2...Liquid crystal driving LSI
, 3... Printed circuit board, 4... Conductive rubber, 5
゛...Metal panel, 5a...Protrusion, 6.
...painting, 7...pad. 1st FjA (a) (b) 2nd @ Figure 3 Figure 4
Claims (1)
かつ導電ゴムに圧縮を加えて液晶表示素子と導電ゴムを
金属パネルとプリント基板とで挾持固定してなる液晶表
示装置において、前記金属パネルを塗装し、前記プリン
ト基板のアースに接地したことを特徴とする液晶表示装
置。Conductive rubber is placed between the liquid crystal display element and the printed circuit board,
and a liquid crystal display device in which a conductive rubber is compressed and a liquid crystal display element and a conductive rubber are clamped and fixed between a metal panel and a printed circuit board, characterized in that the metal panel is painted and grounded to the ground of the printed circuit board. A liquid crystal display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1658585A JPS61177480A (en) | 1985-02-01 | 1985-02-01 | Liquid crystal display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1658585A JPS61177480A (en) | 1985-02-01 | 1985-02-01 | Liquid crystal display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61177480A true JPS61177480A (en) | 1986-08-09 |
Family
ID=11920350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1658585A Pending JPS61177480A (en) | 1985-02-01 | 1985-02-01 | Liquid crystal display unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61177480A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216926U (en) * | 1985-07-12 | 1987-01-31 | ||
| JPH01135423U (en) * | 1988-03-10 | 1989-09-18 | ||
| JPH0219031U (en) * | 1988-07-14 | 1990-02-08 |
-
1985
- 1985-02-01 JP JP1658585A patent/JPS61177480A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216926U (en) * | 1985-07-12 | 1987-01-31 | ||
| JPH01135423U (en) * | 1988-03-10 | 1989-09-18 | ||
| JPH0219031U (en) * | 1988-07-14 | 1990-02-08 |
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