JPH01213623A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH01213623A JPH01213623A JP3784188A JP3784188A JPH01213623A JP H01213623 A JPH01213623 A JP H01213623A JP 3784188 A JP3784188 A JP 3784188A JP 3784188 A JP3784188 A JP 3784188A JP H01213623 A JPH01213623 A JP H01213623A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- terminal
- signal
- display panel
- scanning electrode
- 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 8
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000008054 signal transmission Effects 0.000 abstract 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は走査電極群と信号電極群とを交差して配置した
液晶表示装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a liquid crystal display device in which a group of scanning electrodes and a group of signal electrodes are arranged to cross each other.
「従来の技術」
液晶表示装置は第５図に示すように、ある方向例えば水
平方向に一定間隔で多数の走査電極（１□）（１１）・
・・を配置し、また、垂直方向に一定間隔で多数の信号
電極（２，）（２□）・・・を配置して表示パネル（５
）を構成する６そして、前記走査電極群（ｌｘ）（ｔｚ
）・・・には走査電極駆動用ＩＣ（３）が結合され、信
号電極群（２□０２．）・・・には信号電極群動用ＩＣ
（４）が結合される。しかるに、従来は走査電極群０１
）（１＊）・・・の−万端子（６，）（６，）・・・側
からだけ信号を付加し７ていた。"Prior Art" As shown in FIG. 5, a liquid crystal display device has a large number of scanning electrodes (1□) (11),
..., and a large number of signal electrodes (2,) (2□) ... are arranged at regular intervals in the vertical direction to form a display panel (5
) and the scanning electrode group (lx) (tz
)... is coupled with a scanning electrode drive IC (3), and the signal electrode group (2□02.)... is coupled with a signal electrode group drive IC (3).
(4) are combined. However, conventionally, scanning electrode group 01
)(1*)...'s -10,000 terminal (6,) (6,)... signal was added only from the (6,)... side.
［発明が解決しようとする課題］
走査電極駆動用ＩＣ（３）の出力信号は一方端子（６，
）（６□）・・・に入力した時第６図の実線で示すよう
な矩形波をなしているが、走査電極（１，）（１１）・
・・の他方端子（７，）（７ａ）・・・に近づく頃には
電極の配線抵抗や浮遊容量などのため第６図の点線で示
すような鈍った波形となってしまう、そのため、画面の
両端での明暗の傾斜、不鮮明な画像、交差部分でのスイ
ッチングの誤作動などが生じてしまう、また、走査電極
（１１）（１り・・・が途中で断線すると、断線個所よ
り先には信号が伝わらなくなるなどの問題があった。[Problem to be solved by the invention] The output signal of the scanning electrode driving IC (3) is connected to one terminal (6,
)(6□)..., it forms a rectangular wave as shown by the solid line in Figure 6, but the scanning electrodes (1,)(11) and...
By the time it approaches the other terminal (7,) (7a)..., the waveform becomes dull as shown by the dotted line in Figure 6 due to the wiring resistance and stray capacitance of the electrode. In addition, if the scanning electrode (11) (1... There were problems such as the signal not being transmitted.
第５図の鎖線で示すように、他方端子（７１）（７ｍ）
・・・側にも走査電極駆動用ＩＣ（８）を結合すること
が考えられるが、左右のＩ Ｃ（３） （８）の特性の
完全に一致したものは得られにくく、また得られたとし
ても極めて高価になるという問題がある。As shown by the chain line in Figure 5, the other terminal (71) (7m)
Although it is conceivable to connect the scanning electrode driving IC (8) to the left and right side as well, it is difficult to obtain the characteristics of the left and right ICs (3) (8) that completely match each other, and However, there is a problem in that it is extremely expensive.
本発明は同一のＩＣから走査電極の両端子に同一信号を
印加するようにしたものを得ることを目的とするもので
ある。An object of the present invention is to obtain an apparatus in which the same signal is applied to both terminals of a scanning electrode from the same IC.
「課題を解決するための手段」
本発明は、所定の方向に一定間隔で多数の走査電極群を
配置し、かつこの走査電極群と交差して信号電極群を配
置して表示パネルを構成してなるものにおいて、前記走
査電極群の同一の電極の一方端子と他方端子に、走査電
極駆動用ＩＣの同一の出力端子をそれぞれリード線にて
接続してなるものである。"Means for Solving the Problems" The present invention configures a display panel by arranging a large number of scanning electrode groups at regular intervals in a predetermined direction, and arranging a signal electrode group to intersect with the scanning electrode groups. In this device, the same output terminals of a scanning electrode driving IC are connected to one terminal and the other terminal of the same electrodes of the scanning electrode group by lead wires, respectively.
「作用」
走査電極の両端から矩形波信号が加えられることにより
、電極の配線抵抗等による波形の鈍りが低減され、また
、電極に断線が生じても断線した先に信号が送られなく
なることを防止できる。"Function" By applying a rectangular wave signal from both ends of the scanning electrode, the dullness of the waveform due to electrode wiring resistance etc. is reduced, and even if an electrode breaks, the signal will not be sent to the end of the break. It can be prevented.
「実施例」 以下、本発明の一実施例を図面に基づき説明する。"Example" Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図において、（ｔｔ）Ｏｘ）・・・（ｉｎ）は水平
方向に一定間隔で配置された走査電極群、（Ｚ、）（Ｚ
ａ）・・・（２ｎ）は垂直方向に一定間隔で配置された
信号電極群で、これら走査電極群（１１）（＋１）・・
・（Ｉｎ）と信号電極群（２１）（２□）・・・（２ｎ
）とによって表示パネル（５）が構成されている。In FIG. 1, (tt)Ox)...(in) is a group of scanning electrodes arranged at regular intervals in the horizontal direction, (Z,)(Z
a)...(2n) are signal electrode groups arranged at regular intervals in the vertical direction, and these scanning electrode groups (11) (+1)...
・(In) and signal electrode group (21) (2□)...(2n
) constitutes a display panel (5).
前記走査電極群（ｌｘ）（ｌｔ） ・＝ （ｉｎ）の−
右端子（６１）（６，）・・・（６ｎ）側と他方端子＜
７１）（７１）・・・（７ｎ）側に、それぞれリード線
（９）（１０）によって走査電極駆動用ＩＣ（３）の同
一の出力端子が結合されている。また、信号電極群（２
１）（２□）・・・（２ｎ）には信号電極駆動用ＩＣ（
４）が結合されている。前記走査電極駆動用ＩＣ（３）
は表示パネル（５）の側方に配置し、また、リード線（
９） （１０）のうち他方端子（７ｔ）（７ｔ）・・・
（７ｎ）へ接続するリード線（１０）はフラットケーブ
ルを用い、表示パネル（５）の裏側に配置する。- of the scanning electrode group (lx) (lt) ・= (in)
Right terminal (61) (6,)...(6n) side and other terminal <
The same output terminals of the scan electrode driving IC (3) are connected to the 71) (71)...(7n) sides through lead wires (9) and (10), respectively. In addition, the signal electrode group (2
1)(2□)...(2n) is a signal electrode driving IC (
4) are combined. The scanning electrode driving IC (3)
is placed on the side of the display panel (5), and the lead wire (
9) The other terminal (7t) (7t) of (10)...
The lead wire (10) connected to (7n) uses a flat cable and is placed on the back side of the display panel (5).
前記走査電極駆動用ＩＣ（３）の取付は位置は、第１図
の他に、第２図および第３図に示すように、表示パネル
（５）の裏側に配置することもできる。The scan electrode driving IC (3) can be mounted on the back side of the display panel (5), as shown in FIGS. 2 and 3, in addition to FIG. 1.
このようにすれば正面からみた面積における表示パネル
（５）の占める割合を大きくして正面を有効利用できる
。なお、（１１）はバックライトである。In this way, the proportion of the area occupied by the display panel (5) when viewed from the front can be increased and the front area can be used effectively. Note that (11) is a backlight.
また、第４図に示すように、２個の走査電極駆動用Ｉ
Ｃ（３） （８）を配置し、一方のＩＣ（３）は、奇数
番目の端子（ｓｔ）（７ｚ）ｓ（ａｘ）（７ａ）、・・
・に結合し、他方のＩＣ（８）は偶数番目の端子（６，
）（７，）、（６，）（７，）。In addition, as shown in FIG. 4, two scanning electrode driving I
C(3) (8) is arranged, and one IC(3) has odd numbered terminals (st)(7z)s(ax)(7a),...
・The other IC (8) is connected to even numbered terminals (6,
)(7,),(6,)(7,).
・・・に結合するようにしてもよい。It may be combined with...
以上のような構成において、走査電極（１□）（１２）
・・・（１ｎ）における両側の端子（ｓ、 ） （７ｔ
） 、 （６，） （７□）・・・に同時に同一信号
を加えることによって、電極配線抵抗等による波形の鈍
りが軽減される。また、走査電極群（１１）（１ｍ）・
・・（１ｎ）に断線が生じても両端から信号が加えられ
て全域に信号が印加される。In the above configuration, scanning electrodes (1□) (12)
...Terminals (s, ) (7t) on both sides of (1n)
), (6,) (7□), etc. at the same time, waveform dullness due to electrode wiring resistance etc. can be reduced. In addition, scanning electrode group (11) (1m)
Even if a disconnection occurs at (1n), signals are applied from both ends and the signal is applied to the entire area.
「発明の効果」
本発明は上述のように構成したので、断線により、信号
が送られなくなることがなく、断線による画面の不鮮明
さがなくなる。また、電線の配線抵抗により走査電極波
形の鈍化が極めて少なくなり、シェーディング等を防止
できる。また、走査電極駆動用ＩＣを表示パネルの裏側
にすることによりパネル正面積の有効利用が可能である
。"Effects of the Invention" Since the present invention is configured as described above, there is no possibility that a signal will not be sent due to a disconnection, and the screen will not be unclear due to a disconnection. Further, the waveform of the scanning electrode is extremely less likely to be blunted due to the wiring resistance of the electric wire, and shading and the like can be prevented. Further, by placing the scan electrode driving IC on the back side of the display panel, the front area of the panel can be effectively utilized.
第１ｙＡは本発明による液晶表示装置の第１実施例を示
す正面図、第２図は本発明の第２実施例の正面図、第３
図は同上平面図、第４図は本発明の第３実施例の正面図
、第５図は従来の正面図、第６図は走査電極への印加電
圧波形図である。
（１，）（１□）〜（１ｎ）・・・走査電極群、（２，
）（ｚａ）〜（２ｎ）・・・信号電極群、（３） （８
）・・・走査電極駆動用ＩＣ１（４）・・・信号電極駆
動用ＩＣ１
（５）・・・表示パネル、
（６１）（ｓｚ）〜（６ｎ）・・・一方の端子、（７□
）（７□）〜（７ｎ）・・・他方の端子、（９）（１０
）・・・リード線、
（１１）・・・バックライト。
出願人 株式会社富士通ゼネラル1yA is a front view showing the first embodiment of the liquid crystal display device according to the present invention, FIG. 2 is a front view of the second embodiment of the present invention, and FIG.
4 is a front view of the third embodiment of the present invention, FIG. 5 is a front view of the conventional device, and FIG. 6 is a voltage waveform diagram applied to the scanning electrodes. (1,) (1□) to (1n)...Scanning electrode group, (2,
) (za) to (2n)...signal electrode group, (3) (8
)...Scanning electrode drive IC1 (4)...Signal electrode drive IC1 (5)...Display panel, (61)(sz) to (6n)...One terminal, (7□
)(7□) to (7n)...other terminal, (9)(10
)...Lead wire, (11)...Backlight. Applicant Fujitsu General Ltd.
Claims (4)
し、かつこの走査電極群と交差して信号電極群を配置し
て表示パネルを構成してなるものにおいて、前記走査電
極群の同一の電極の一方端子と他方端子に、走査電極駆
動用ＩＣの同一の出力端子をそれぞれリード線にて接続
してなることを特徴とする液晶表示装置。(1) In a display panel configured by arranging a large number of scanning electrode groups at regular intervals in a predetermined direction and arranging a signal electrode group intersecting with the scanning electrode groups, the A liquid crystal display device characterized in that one terminal and the other terminal of the same electrode are connected to the same output terminal of a scanning electrode driving IC using lead wires.
配置し、このＩＣと他方端子とを接続するリード線とし
てフラットケーブルを用いて表示パネルの背面を通して
なる請求項１記載の液晶表示装置。(2) The liquid crystal display according to claim 1, wherein one scanning electrode driving IC is disposed on the side of the display panel, and a flat cable is used as a lead wire to connect this IC to the other terminal and is passed through the back of the display panel. Display device.
配置してなる請求項１記載の液晶表示装置。(3) The liquid crystal display device according to claim 1, wherein one scanning electrode driving IC is arranged at the back of the display panel.
奇数番目の走査電極に接続し、他方のＩＣは偶数番目の
走査電極に接続した請求項１記載の液晶表示装置。(4) The liquid crystal display device according to claim 1, wherein two scan electrode driving ICs are used, one IC being connected to the odd numbered scan electrodes and the other IC being connected to the even numbered scan electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3784188A JPH01213623A (en) | 1988-02-20 | 1988-02-20 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3784188A JPH01213623A (en) | 1988-02-20 | 1988-02-20 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01213623A true JPH01213623A (en) | 1989-08-28 |
Family
ID=12508758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3784188A Pending JPH01213623A (en) | 1988-02-20 | 1988-02-20 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01213623A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5619223A (en) * | 1994-04-14 | 1997-04-08 | Prime View Hk Limited | Apparatus for increasing the effective yield of displays with integregated row select driver circuit |
| JP2002221930A (en) * | 2000-12-16 | 2002-08-09 | Samsung Electronics Co Ltd | Flat panel display device |
| US6862013B2 (en) | 2000-07-28 | 2005-03-01 | Sharp Kabushiki Kaisha | Image display device |
| JP2020118912A (en) * | 2019-01-28 | 2020-08-06 | セイコーエプソン株式会社 | Liquid crystal device, liquid crystal driver, electronic apparatus, and mobile body |
-
1988
- 1988-02-20 JP JP3784188A patent/JPH01213623A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5619223A (en) * | 1994-04-14 | 1997-04-08 | Prime View Hk Limited | Apparatus for increasing the effective yield of displays with integregated row select driver circuit |
| US6862013B2 (en) | 2000-07-28 | 2005-03-01 | Sharp Kabushiki Kaisha | Image display device |
| JP2002221930A (en) * | 2000-12-16 | 2002-08-09 | Samsung Electronics Co Ltd | Flat panel display device |
| JP2020118912A (en) * | 2019-01-28 | 2020-08-06 | セイコーエプソン株式会社 | Liquid crystal device, liquid crystal driver, electronic apparatus, and mobile body |
| US11189203B2 (en) | 2019-01-28 | 2021-11-30 | Seiko Epson Corporation | Liquid crystal device, liquid crystal driver, electronic apparatus, and mobile body |
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