JPS6368882A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPS6368882A JPS6368882A JP21153286A JP21153286A JPS6368882A JP S6368882 A JPS6368882 A JP S6368882A JP 21153286 A JP21153286 A JP 21153286A JP 21153286 A JP21153286 A JP 21153286A JP S6368882 A JPS6368882 A JP S6368882A
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- liquid crystal
- crystal display
- display device
- drive circuit
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 19
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、液晶表示装置に係り、特に大型液晶表示装置
の回路実装プリント基板構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid crystal display device, and particularly to a circuit-mounted printed circuit board structure for a large-sized liquid crystal display device.
内面に透明電極を形成した２枚の透明絶縁基板間に液晶
を挟持してなる液晶表示素子を時分割駆動するための、
走査電極側駆動回路、信号電極側駆動回路、および電源
回路は一枚のプリント基板に搭載されていた（雑誌「日
経エレクトロニクス」１９８０年８月１８日号第１７０
頁）。For time division driving of a liquid crystal display element, which consists of a liquid crystal sandwiched between two transparent insulating substrates with transparent electrodes formed on their inner surfaces,
The scanning electrode side drive circuit, the signal electrode side drive circuit, and the power supply circuit were mounted on a single printed circuit board (Magazine "Nikkei Electronics" August 18, 1980 issue No. 170)
page).
従来の液晶表示装置の一例を第４図に示す。同図におい
て、液晶表示素子１．液晶表示素子駆動回路（図示せず
）を搭載したプリント基板２０゜液晶表示素子１の一端
に形成された電極端子（図示せず）とプリント基板２０
とを電気的に接続するためのインタコネクタ２１（導電
性ゴムと絶縁性ゴムを交互に積層したもの）およびフラ
ットケーブル２２（絶縁シートにプリント配線したもの
）を金属フレーム２３で一体に固定している。An example of a conventional liquid crystal display device is shown in FIG. In the figure, a liquid crystal display element 1. Printed circuit board 20° on which a liquid crystal display element drive circuit (not shown) is mounted; electrode terminal (not shown) formed at one end of the liquid crystal display element 1 and printed circuit board 20
An interconnector 21 (alternately laminated conductive rubber and insulating rubber) and a flat cable 22 (printed wiring on an insulating sheet) are fixed together with a metal frame 23 for electrical connection. There is.
上記従来例では、回路修正が必要な場合、回路の一部を
修正する場合においても、全体をチェックする必要があ
るため煩雑であった。In the above-mentioned conventional example, even when a circuit needs to be modified or a part of the circuit is modified, it is necessary to check the entire circuit, which is complicated.
上記問題点は、液晶表示素子を駆動するための回路を、
走査電極駆動回路基板、信号電極駆動回路基板および電
源回路基板その他に分けることにより解決される。The above problem is caused by the circuit for driving the liquid crystal display element.
This problem can be solved by dividing the circuit board into a scanning electrode drive circuit board, a signal electrode drive circuit board, a power supply circuit board, and others.
走査電極駆動回路基板、信号電極駆動回路基板。 Scanning electrode drive circuit board, signal electrode drive circuit board.
および電源回路基板毎に分離されている為、変更する回
路基板のみについて、単独に変更することが出来る。変
更を必要としない回路基板については、何らチェックす
る必要がなくなる。Since the power supply circuit board is separated for each power supply circuit board, only the circuit board to be changed can be changed independently. There is no need to check any circuit boards that do not require changes.
以下図面を参照してこの発明の一実施例について説明す
る。An embodiment of the present invention will be described below with reference to the drawings.
本発明による液晶表示装置を第１図に示す。同図におい
ては、液晶表示素子１、および、大きく分けて、走査電
極駆動回路部２．信号電極駆動回路部３．その他の電源
回路部４なる回路部とからなっている。本発明は、この
３つの回路を別々なプリント基板に実装し、それらの間
をコネクタで接続するものである。本発明における回路
基板の一実施例の分解斜視図を示した第２図および組立
だ回路基板の平面図を示す第３図により説明する。A liquid crystal display device according to the present invention is shown in FIG. In the figure, a liquid crystal display element 1, and a scan electrode drive circuit section 2. Signal electrode drive circuit section 3. It consists of another circuit section called a power supply circuit section 4. In the present invention, these three circuits are mounted on separate printed circuit boards, and a connector is used to connect them. This will be explained with reference to FIG. 2, which shows an exploded perspective view of one embodiment of the circuit board according to the present invention, and FIG. 3, which shows a plan view of the assembled circuit board.
プリント基板が走査電極駆動回路基板］３．信号電極駆
動回路基板１４．およびその他の電源回路基板１５の３
枚となるため、固定用にプラスチックのモールド１８と
、液晶表示素子１とプリント基板１３，１４．１５の接
続にはフラットケーブル１６を使用している。組立方法
は、まず液晶表示素子１とプリント基板１．３．１４−
．１５をフラットケーブル１６で接続した後（信号電極
駆動回路基板１４と走査電極駆動回路基板１３）、モー
ルド１８にゴムをしいてはめ込んで固定する。次にその
他の電源回路基板１５をモールド１８にはめ込み、コネ
クタ１７で基板同志を接続する。この後、金属フレーム
２３に挿入して完了する。The printed circuit board is a scanning electrode drive circuit board]3. Signal electrode drive circuit board 14. and other power supply circuit boards 15-3
A plastic mold 18 is used for fixing, and a flat cable 16 is used to connect the liquid crystal display element 1 and the printed circuit boards 13, 14, and 15. The assembly method begins with the liquid crystal display element 1 and the printed circuit board 1.3.14-
．． 15 are connected with a flat cable 16 (signal electrode drive circuit board 14 and scan electrode drive circuit board 13), and then the mold 18 is covered with rubber and fitted into the mold 18 to be fixed. Next, the other power supply circuit board 15 is fitted into the mold 18, and the boards are connected to each other using the connector 17. After this, it is inserted into the metal frame 23 and completed.
殊に走査電極駆動回路基板１３および信号電極駆動回路
基板１４には駆動ドライバのみを搭載することが最も好
適である。In particular, it is most preferable to mount only a drive driver on the scan electrode drive circuit board 13 and the signal electrode drive circuit board 14.
（発明の効果〕
本発明によれば、■プリント基板を小さくできる、■回
路変更の修正を単独にできるので次の効果がある。(Effects of the Invention) According to the present invention, (1) the printed circuit board can be made smaller; and (2) circuit changes can be made independently, resulting in the following effects.
■プリント基板は、面積に比例して価格が決まる。この
構造により、従来の１枚からなる基板に対して、３枚組
合せた面積の和は、５０％削減できる。これは仕様によ
って異なってくるが、大型３一
液晶表示モジュールの場合は、効果はさらに大きくなる
。■The price of printed circuit boards is determined in proportion to the area. With this structure, the total area of three boards combined can be reduced by 50% compared to the conventional one-board board. Although this will vary depending on the specifications, the effect will be even greater in the case of a large 31 LCD module.
■は、特に電源回路の変更が多く、変更のたびに全面を
チェックしていた。これが電源回路単独だけとなり、簡
単となる。■ In particular, there were many changes to the power supply circuit, and the entire system was checked every time there was a change. This becomes simple as only the power supply circuit is required.
第１図は本発明の一実施例を示す回路ブロック図、第２
図は本発明の一実施例を示す分解斜視図、第３図は本発
明の一実施例における回路基板の平面図、第４図は従来
の液晶表示装置を示す斜視図である。
１・・・液晶表示素子、２・・・走査電極駆動回路部、
３・・・信号電極駆動回路部、４・・・電源回路部、１
３・・・走査電極駆動回路基板、１４・・・信号電極駆
動回路基板、１５・・・電源回路基板、１６・・・フラ
ットケーブル、１７・・・コネクタ、１Ｂ・・・モール
ド、２３・・・フレーム。FIG. 1 is a circuit block diagram showing one embodiment of the present invention, and FIG.
3 is a plan view of a circuit board according to an embodiment of the present invention, and FIG. 4 is a perspective view of a conventional liquid crystal display device. 1... Liquid crystal display element, 2... Scanning electrode drive circuit section,
3... Signal electrode drive circuit section, 4... Power supply circuit section, 1
3... Scanning electrode drive circuit board, 14... Signal electrode drive circuit board, 15... Power supply circuit board, 16... Flat cable, 17... Connector, 1B... Mold, 23... ·flame.
Claims (1)
る回路基板とからなる液晶表示装置において、回路基板
を、走査電極駆動回路基板、信号電極駆動回路基板およ
びその他の電源回路基板にわけたことを特徴とする液晶
表示装置。1. In a liquid crystal display device consisting of a liquid crystal display element and a circuit board on which a circuit for driving the element is mounted, the circuit board is divided into a scanning electrode drive circuit board, a signal electrode drive circuit board, and other power supply circuit boards. A liquid crystal display device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21153286A JPS6368882A (en) | 1986-09-10 | 1986-09-10 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21153286A JPS6368882A (en) | 1986-09-10 | 1986-09-10 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6368882A true JPS6368882A (en) | 1988-03-28 |
Family
ID=16607434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21153286A Pending JPS6368882A (en) | 1986-09-10 | 1986-09-10 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6368882A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0371382U (en) * | 1989-11-14 | 1991-07-18 | ||
| JP2004361524A (en) * | 2003-06-02 | 2004-12-24 | Seiko Epson Corp | Electro-optical module, power source board, wiring board, and electronic equipment |
-
1986
- 1986-09-10 JP JP21153286A patent/JPS6368882A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0371382U (en) * | 1989-11-14 | 1991-07-18 | ||
| JP2004361524A (en) * | 2003-06-02 | 2004-12-24 | Seiko Epson Corp | Electro-optical module, power source board, wiring board, and electronic equipment |
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