JP2003140165A - Liquid crystal display panel and method of manufacturing the same - Google Patents
Liquid crystal display panel and method of manufacturing the sameInfo
- Publication number
- JP2003140165A JP2003140165A JP2001333995A JP2001333995A JP2003140165A JP 2003140165 A JP2003140165 A JP 2003140165A JP 2001333995 A JP2001333995 A JP 2001333995A JP 2001333995 A JP2001333995 A JP 2001333995A JP 2003140165 A JP2003140165 A JP 2003140165A
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- liquid crystal
- display panel
- crystal display
- scanning signal
- 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
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液晶表示パネルの
構成に関する。TECHNICAL FIELD The present invention relates to a structure of a liquid crystal display panel.
【０００２】[0002]
【従来の技術】液晶表示ハ゜ネルの内部配線は、図３に示す
ようにガラス基板１に複数の映像信号配線５と走査信号
配線４をマトリクス状に形成され、このマトリクスの各
交点に画素電極９が形成されている。液晶表示ハ゜ネルに
は、液晶を駆動する映像信号駆動IC２、および走査信号
駆動IC３が液晶表示ハ゜ネルの少なくとも２辺に直接実装で
きるように端子が形成されている。2. Description of the Related Art As shown in FIG. 3, internal wiring of a liquid crystal display panel is formed by forming a plurality of video signal wirings 5 and scanning signal wirings 4 in a matrix on a glass substrate 1, and pixel electrodes 9 are formed at respective intersections of the matrix. Are formed. On the liquid crystal display panel, terminals are formed so that the video signal driving IC 2 for driving the liquid crystal and the scanning signal driving IC 3 can be directly mounted on at least two sides of the liquid crystal display panel.
【０００３】従来の液晶パネルの画像検査方法は、図３
に示したように、液晶表示パネルの複数の映像信号配線
５と複数の走査信号配線４の少なくとも一方に接続した
共通配線７に一括点灯画検査用PAD８を形成し、この端
子に検査用プローブを立てて検査用信号を供給し、液晶
表示パネルの画像検査を行って簡易的に良否の判定を行
っていた。そして、この一括検査用PAD８は、図３に示
すように、映像信号駆動IC２、および走査信号駆動IC３
を実装する少なくとも２辺のうちのいずれか一方の辺に
形成していた。A conventional image inspection method for a liquid crystal panel is shown in FIG.
As shown in, a collective lighting image inspection PAD 8 is formed on the common wiring 7 connected to at least one of the plurality of video signal wirings 5 and the plurality of scanning signal wirings 4 of the liquid crystal display panel, and the inspection probe is connected to this terminal. The inspection signal is supplied upright, the image of the liquid crystal display panel is inspected, and the quality is simply determined. The PAD 8 for collective inspection is, as shown in FIG. 3, a video signal driving IC 2 and a scanning signal driving IC 3
Was formed on any one of at least two sides for mounting.
【０００４】[0004]
【発明が解決しようとする課題】しかし、近年、携帯向
け液晶表示パネルの構成は、液晶表示ハ゜ネルの短辺側の外
形センターと表示エリアのセンターを同一にする３辺フリーの液晶表示
ハ゜ネルの構成が主流になてきている。この３辺フリーの液
晶表示ハ゜ネル構成にすると、液晶を駆動するICが１辺側に
しか実装ができなくなり一括検査用PAD８を従来のよう
な位置に形成することができないという問題を生じる。However, in recent years, the construction of a liquid crystal display panel for a mobile phone has a construction of a three-side free liquid crystal display panel in which the outer center of the short side of the liquid crystal display panel and the center of the display area are the same. Is becoming mainstream. This three-side liquid crystal display panel configuration causes a problem that the IC for driving the liquid crystal can be mounted only on one side, and the collective inspection PAD 8 cannot be formed at the conventional position.
【０００５】点灯画像検査工程は、歩留まりなど把握す
るための重要な工程であり、もしこの点灯画像検査が行
わなければ、その液晶表示ハ゜ネルの品位も最終検査までい
かないと分からないという問題が生じ、非常に生産性の
効率が低下する。The lighting image inspection process is an important process for grasping the yield and the like, and if the lighting image inspection is not performed, there arises a problem that the quality of the liquid crystal display panel cannot be understood until the final inspection. , Very less productive efficiency.
【０００６】本発明は、上記従来の問題点を解決するも
ので、確実に液晶ハ゜ネル状態での電気検査を行えるように
し、後工程に不良を持ち込まないようにすることができ
る液晶表示ハ゜ネルを提供する。The present invention solves the above-mentioned conventional problems, and provides a liquid crystal display panel capable of surely performing an electrical inspection in a liquid crystal panel state and preventing a defect from being introduced in a subsequent process. To do.
【０００７】[0007]
【課題を解決するための手段】請求項１記載の液晶表示
ハ゜ネルは、透明基板上に複数の映像信号配線および走査信
号配線がマトリクス状に形成され、前記映像信号配線ま
たは走査信号配線に接続される共通配線が形成され、前
記透明基板のいずれかの１辺に沿って、前記映像信号配
線に映像信号を供給する映像信号駆動ＩＣ、および、前
記走査信号配線に走査信号を供給する走査信号駆動ＩＣ
の双方がチップオングラス工法により前記透明基板上に
直接実装され、前記透明基板の短辺側の外形センターと
前記透明基板に形成された表示エリアの外形センターと
は略同一であり、前記１辺以外の３辺には前記映像信号
駆動ＩＣおよび走査信号駆動ＩＣのいずれも実装されて
いない３辺フリーの液晶表示パネルであって、一括点灯
画像方式により点灯画像検査を行う際に検査用端子とし
て用いる前記共通配線に接続された一括点灯画像検査用
ＰＡＤが、前記走査信号駆動ＩＣおよび映像信号駆動Ｉ
Ｃの少なくともいずれか一方の出力端子と入力端子との
間に形成されたことを特徴とする液晶表示パネルであ
る。A liquid crystal display panel according to claim 1, wherein a plurality of video signal wirings and scanning signal wirings are formed in a matrix on a transparent substrate and are connected to the video signal wirings or the scanning signal wirings. A common wiring is formed, and a video signal driving IC for supplying a video signal to the video signal wiring and a scan signal driving for supplying a scanning signal to the scanning signal wiring along one side of the transparent substrate. IC
Both are directly mounted on the transparent substrate by the chip-on-glass method, and the outline center of the short side of the transparent substrate and the outline center of the display area formed on the transparent substrate are substantially the same, and the one side A liquid crystal display panel free from three sides in which neither the video signal driving IC nor the scanning signal driving IC is mounted on the other three sides, and is used as an inspection terminal when performing a lighting image inspection by a collective lighting image method. The batch lighting image inspection PAD connected to the common wiring used is the scanning signal driving IC and the video signal driving I.
The liquid crystal display panel is formed between at least one of the output terminal and the input terminal of C.
【０００８】また、請求項３記載の液晶表示ハ゜ネルの製造
方法は、透明基板上に複数の映像信号配線および走査信
号配線をマトリクス状に形成する工程と、前記映像信号
配線または走査信号配線に接続される共通配線を形成す
る工程と、前記透明基板のいずれかの１辺のみに沿っ
て、前記映像信号配線に映像信号を供給する映像信号駆
動ＩＣ、および、前記走査信号配線に走査信号を供給す
る走査信号駆動ＩＣの双方がチップオングラス工法によ
り前記透明基板上に直接実装する工程と、一括点灯画像
方式により、前記共通配線に接続された一括点灯画像検
査ＰＡＤに検査ピンを当て画像検査を行う点灯画像検査
工程と、を備える液晶表示パネルの製造方法であって、
前記一括点灯画像検査用ＰＡＤを、前記走査信号駆動Ｉ
Ｃおよび映像信号駆動ＩＣの少なくともいずれか一方の
出力端子と入力端子との間に形成することを特徴とする
液晶表示パネルの製造方法である。According to a third aspect of the present invention, there is provided a method of manufacturing a liquid crystal display panel, wherein a step of forming a plurality of video signal wirings and scanning signal wirings in a matrix on a transparent substrate and connecting to the video signal wirings or the scanning signal wirings. And a video signal driving IC for supplying a video signal to the video signal wiring along only one side of the transparent substrate, and a scanning signal for the scanning signal wiring. Both the scanning signal driving ICs are directly mounted on the transparent substrate by the chip-on-glass method, and the collective lighting image method is used to apply an inspection pin to the collective lighting image inspection PAD connected to the common wiring to perform the image inspection. A method for manufacturing a liquid crystal display panel, comprising:
The PAD for collective lighting image inspection is connected to the scan signal drive I
A method of manufacturing a liquid crystal display panel, characterized in that it is formed between an output terminal and an input terminal of at least one of C and a video signal driving IC.
【０００９】[0009]
【発明の実施の形態】本発明の実施の形態の液晶表示パ
ネルを図１に基づいて説明する。DETAILED DESCRIPTION OF THE INVENTION A liquid crystal display panel according to an embodiment of the present invention will be described with reference to FIG.
【００１０】図１および図２は、この発明の実施の形態
の液晶表示パネルを示す図であり、図３に示した液晶表
示パネルと同一構成部分には同一符号を付した。図２は
図１のＡ部を拡大した図でる。この液晶表示パネルは図
３に示した液晶表示パネルと同様、複数の走査信号配線
４と複数の映像信号配線５の少なくとも一方と、液晶画
面表示エリアの外側に設けられた共通配線７とを接続し、
前記共通配線は一括点灯画像検査用PAD８と接続されて
いる。1 and 2 are views showing a liquid crystal display panel according to an embodiment of the present invention, and the same components as those of the liquid crystal display panel shown in FIG. 3 are designated by the same reference numerals. FIG. 2 is an enlarged view of portion A of FIG. Similar to the liquid crystal display panel shown in FIG. 3, this liquid crystal display panel connects at least one of the plurality of scanning signal wirings 4 and the plurality of video signal wirings 5 to the common wiring 7 provided outside the liquid crystal screen display area. Then
The common wiring is connected to the collective lighting image inspection PAD 8.
【００１１】また、画面表示エリアの短辺側のセンターと液晶
表示ハ゜ネルの透明基板（本実施の形態ではガラス基板）外
形の短辺側のセンター１１が略一致するよう、すなわち、画
面表示エリアがガラス基板１の短辺の２等分線に対して
ほぼ左右対照な配置となるよう、映像信号駆動IC２と走
査信号駆動IC３の両方をガラス基板１の１短辺（図１に
おいては下側１辺）に沿って画面表示エリア外に実装す
る。Further, the center on the short side of the screen display area and the center 11 on the short side of the outer shape of the transparent substrate (glass substrate in this embodiment) of the liquid crystal display panel are substantially aligned, that is, the screen display area is Both the video signal driving IC 2 and the scanning signal driving IC 3 are placed on one short side of the glass substrate 1 (lower side 1 in FIG. 1) so as to be arranged symmetrically with respect to the bisector of the short side of the glass substrate 1. Implemented outside the screen display area along the (side).
【００１２】このような構成にすると、下側１辺以外は
対向側のガラス基板によって挟まれた構成になり、一括
点画検査用端子にヒ゜ンをフ゜ローヒ゛ンク゛するには下側１辺しか
なくなってしまう。また、下側１辺には、走査信号駆動
IC３および映像信号駆動IC２を少なくとも２つを実装す
ることが必要となることから、一括点灯画像検査用端子
８を形成することが困難である。According to this structure, the glass substrate on the opposite side is sandwiched by the glass substrate except the one side on the lower side, and there is only one side on the lower side in order to prolong the pins to the terminal for inspecting batch puncture. In addition, the scanning signal drive is on the lower side.
Since it is necessary to mount at least two ICs 3 and video signal drive ICs 2, it is difficult to form the collective lighting image inspection terminal 8.
【００１３】そこで、図２に示すように、映像信号駆動
IC２の出力端子１３と入力端子１２の間に一括点灯画像
検査用PAD８を形成する。このような構成にすれば、確
実に簡易点灯画像検査を行えるようにでき、生産性の向
上及び歩留まりの向上につながる。Therefore, as shown in FIG.
A batch lighting image inspection PAD 8 is formed between the output terminal 13 and the input terminal 12 of the IC 2. With such a configuration, the simple lighting image inspection can be surely performed, which leads to an improvement in productivity and an improvement in yield.
【００１４】なお、本実施の形態では、映像信号駆動IC
２の出力端子１３と入力端子１２の間に一括点灯画像検
査用PAD８を形成したが、走査信号駆動IC３の出力端子
１３と入力端子１２の間に一括点灯画像検査用PAD８を
形成してもよいことは言うまでもない。また、本発明の
液晶表示パネルは携帯電話、ＰＤＡなどの携帯情報端末
の表示デバイスとして好適に用いられる。In the present embodiment, the video signal drive IC
Although the collective lighting image inspection PAD 8 is formed between the output terminal 13 and the input terminal 12 of the second embodiment, the collective lighting image inspection PAD 8 may be formed between the output terminal 13 and the input terminal 12 of the scanning signal driving IC 3. Needless to say. Further, the liquid crystal display panel of the present invention is preferably used as a display device of a mobile information terminal such as a mobile phone and a PDA.
【００１５】[0015]
【発明の効果】以上のように本発明によれば、確実に簡
易画像検査工程を行えるようにでき、液晶表示パネルの
生産性向上および歩留まり向上につながる。As described above, according to the present invention, the simple image inspection process can be surely performed, which leads to the improvement in the productivity and the yield of the liquid crystal display panel.
【図１】本発明の実施の形態の液晶表示パネルの構成を
示す図FIG. 1 is a diagram showing a configuration of a liquid crystal display panel according to an embodiment of the present invention.
【図２】図１の液晶表示パネルのＡ部拡大図FIG. 2 is an enlarged view of part A of the liquid crystal display panel of FIG.
【図３】従来の液晶表示パネルの概略構成図FIG. 3 is a schematic configuration diagram of a conventional liquid crystal display panel.
１ カ゛ラス基板 ２ 映像信号駆動IC ３ 走査信号駆動IC ４ 走査信号配線 ５ 映像信号配線 ６ 表示エリア ７ 共通ハ゛ス配線 ８ 一括点灯画像検査用PAD ９ 画素電極 １０ TFT １１ 画面センター １２ 映像信号駆動ICの入力端子 １３ 映像信号駆動ICの出力端子 1 glass substrate 2 Video signal drive IC 3 Scan signal drive IC 4 Scan signal wiring 5 Video signal wiring 6 display areas 7 Common bus wiring 8 PAD for batch lighting image inspection 9 pixel electrodes 10 TFT 11 screen center 12 Input terminal of video signal drive IC 13 Video signal drive IC output terminal
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｇ０９Ｆ 9/00 ３４８ Ｇ０９Ｆ 9/00 ３４８Ｃ ３５２ ３５２ 9/30 ３３０ 9/30 ３３０Ｚ Ｆターム(参考） 2H088 EA02 EA22 FA13 HA02 HA05 HA06 HA08 MA16 2H092 GA33 GA44 GA45 GA60 JA24 JB77 NA30 PA06 5C094 AA15 AA42 AA43 AA48 BA03 BA43 CA19 DA09 DA13 DB01 DB03 DB10 EA03 EA04 FA01 GB10 5G435 AA17 AA18 BB12 CC09 EE32 EE37 EE41 KK05 KK10 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) G09F 9/00 348 G09F 9/00 348C 352 352 9/30 330 9/30 330Z F term (reference) 2H088 EA02 EA22 FA13 HA02 HA05 HA06 HA08 MA16 2H092 GA33 GA44 GA45 GA60 JA24 JB77 NA30 PA06 5C094 AA15 AA42 AA43 AA48 BA03 BA43 CA19 DA09 DA13 DB01 DB03 DB10 EA03 EA04 FA01 GB10 5G435 AA17 AA18 BB12 CC09 EE41 EE32 KK
Claims (3)
査信号配線がマトリクス状に形成され、 前記映像信号配線または走査信号配線に接続される共通
配線が形成され、 前記透明基板のいずれかの１辺に沿って、前記映像信号
配線に映像信号を供給する映像信号駆動ＩＣ、および、
前記走査信号配線に走査信号を供給する走査信号駆動Ｉ
Ｃの双方がチップオングラス工法により前記透明基板上
に直接実装され、 前記透明基板の短辺側の外形センターと前記透明基板に
形成された表示エリアの外形センターとは略同一であ
り、前記１辺以外の３辺には前記映像信号駆動ＩＣおよ
び走査信号駆動ＩＣのいずれも実装されていない３辺フ
リーの液晶表示パネルであって、 一括点灯画像方式により点灯画像検査を行う際に検査用
端子として用いる前記共通配線に接続された一括点灯画
像検査用ＰＡＤが、前記走査信号駆動ＩＣおよび映像信
号駆動ＩＣの少なくともいずれか一方の出力端子と入力
端子との間に形成されたことを特徴とする液晶表示パネ
ル。1. A plurality of video signal wirings and scanning signal wirings are formed in a matrix on a transparent substrate, common wirings connected to the video signal wirings or the scanning signal wirings are formed, and one of the transparent substrates is formed. A video signal driving IC for supplying a video signal to the video signal wiring along one side, and
Scan signal drive I for supplying a scan signal to the scan signal line
Both of C are directly mounted on the transparent substrate by the chip-on-glass method, and the outline center of the short side of the transparent substrate and the outline center of the display area formed on the transparent substrate are substantially the same. A liquid crystal display panel free from three sides in which neither the video signal driving IC nor the scanning signal driving IC is mounted on the three sides other than the sides, and an inspection terminal when performing a lighting image inspection by a collective lighting image method. The collective lighting image inspection PAD connected to the common wiring used as the above is formed between the output terminal and the input terminal of at least one of the scanning signal driving IC and the video signal driving IC. Liquid crystal display panel.
用いた携帯情報端末装置。2. A portable information terminal device using the liquid crystal display panel according to claim 1 as a display unit.
査信号配線をマトリクス状に形成する工程と、 前記映像信号配線または走査信号配線に接続される共通
配線を形成する工程と、 前記透明基板のいずれかの１辺のみに沿って、前記映像
信号配線に映像信号を供給する映像信号駆動ＩＣ、およ
び、前記走査信号配線に走査信号を供給する走査信号駆
動ＩＣの双方がチップオングラス工法により前記透明基
板上に直接実装する工程と、 一括点灯画像方式により、前記共通配線に接続された一
括点灯画像検査ＰＡＤに検査ピンを当て画像検査を行う
点灯画像検査工程と、を備える液晶表示パネルの製造方
法であって、 前記一括点灯画像検査用ＰＡＤを、前記走査信号駆動Ｉ
Ｃおよび映像信号駆動ＩＣの少なくともいずれか一方の
出力端子と入力端子との間に形成することを特徴とする
液晶表示パネルの製造方法。3. A step of forming a plurality of video signal wirings and scanning signal wirings in a matrix on a transparent substrate, a step of forming a common wiring connected to the video signal wirings or the scanning signal wirings, and the transparent substrate. Both the video signal driving IC for supplying the video signal to the video signal wiring and the scanning signal driving IC for supplying the scanning signal to the scanning signal wiring are provided by the chip-on-glass method along only one side of A liquid crystal display panel including: a step of directly mounting on the transparent substrate; and a lighting image inspection step of performing an image inspection by applying an inspection pin to a collective lighting image inspection PAD connected to the common wiring by a collective lighting image method. A method of manufacturing, wherein the PAD for collective lighting image inspection is provided with the scanning signal drive I
A method for manufacturing a liquid crystal display panel, which is formed between an output terminal and an input terminal of at least one of C and a video signal driving IC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001333995A JP3971153B2 (en) | 2001-10-31 | 2001-10-31 | Liquid crystal display panel and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001333995A JP3971153B2 (en) | 2001-10-31 | 2001-10-31 | Liquid crystal display panel and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003140165A true JP2003140165A (en) | 2003-05-14 |
| JP3971153B2 JP3971153B2 (en) | 2007-09-05 |
Family
ID=19149189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001333995A Expired - Fee Related JP3971153B2 (en) | 2001-10-31 | 2001-10-31 | Liquid crystal display panel and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3971153B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005331835A (en) * | 2004-05-21 | 2005-12-02 | Sanyo Electric Co Ltd | Liquid crystal display |
| JP2006106132A (en) * | 2004-09-30 | 2006-04-20 | Sharp Corp | Display driving circuit and display device |
| US7251009B2 (en) | 2002-09-10 | 2007-07-31 | Hitachi Displays, Ltd. | Liquid crystal display device |
| US7956976B1 (en) | 2002-09-10 | 2011-06-07 | Hitachi Displays, Ltd. | Liquid crystal display device |
-
2001
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7251009B2 (en) | 2002-09-10 | 2007-07-31 | Hitachi Displays, Ltd. | Liquid crystal display device |
| US7916261B2 (en) | 2002-09-10 | 2011-03-29 | Hitachi Displays, Ltd. | Liquid crystal display device |
| US7956976B1 (en) | 2002-09-10 | 2011-06-07 | Hitachi Displays, Ltd. | Liquid crystal display device |
| US8164731B2 (en) | 2002-09-10 | 2012-04-24 | Hitachi Displays , Ltd. | Liquid crystal display device |
| JP2005331835A (en) * | 2004-05-21 | 2005-12-02 | Sanyo Electric Co Ltd | Liquid crystal display |
| JP4525174B2 (en) * | 2004-05-21 | 2010-08-18 | セイコーエプソン株式会社 | Liquid crystal display |
| JP2006106132A (en) * | 2004-09-30 | 2006-04-20 | Sharp Corp | Display driving circuit and display device |
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| Publication number | Publication date |
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| JP3971153B2 (en) | 2007-09-05 |
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