JPH09329797A - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPH09329797A JPH09329797A JP15143396A JP15143396A JPH09329797A JP H09329797 A JPH09329797 A JP H09329797A JP 15143396 A JP15143396 A JP 15143396A JP 15143396 A JP15143396 A JP 15143396A JP H09329797 A JPH09329797 A JP H09329797A
- Authority
- JP
- Japan
- Prior art keywords
- sealing
- liquid crystal
- wire electrode
- crystal display
- line width
- 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)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は液晶表示素子に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device.
【０００２】[0002]
【従来の技術】近年、液晶表示素子の大容量化、高速応
答化、大量生産化へ向けての開発が進んでいる。さらに
近年では、携帯端末のディスプレイとして表示容量を保
ちつつ小型化を実現させるための開発がなされている。
ＳＴＮ型液晶表示素子では、短冊状の画素電極を上下に
交差させるように配置してマトリクス状の画素を形成さ
せている。画素電極における画素をなす表示部分とデー
タ入力端子部分の間は、導線電極部を形成してこれらを
接続している。ここで、この導線電極部の抵抗値は一定
値に均一化させる必要がある。これは導線電極部の抵抗
値が不均一である場合には、電気抵抗値として画素ごと
の供給電圧差が生じ、それによって表示のむらが発生す
るためである。2. Description of the Related Art In recent years, liquid crystal display devices have been developed for large capacity, high speed response and mass production. Furthermore, in recent years, development has been made to realize miniaturization while maintaining display capacity as a display of a mobile terminal.
In the STN type liquid crystal display element, strip-shaped pixel electrodes are arranged so as to cross each other vertically to form pixels in a matrix. A conductive wire electrode portion is formed between the display portion forming the pixel of the pixel electrode and the data input terminal portion to connect them. Here, it is necessary to make the resistance value of the conductive wire electrode portion uniform to a constant value. This is because, when the resistance value of the conductive wire electrode portion is not uniform, a difference in supply voltage between pixels occurs as an electric resistance value, which causes display unevenness.
【０００３】図２において、１１は画素電極、１２は画
素電極１１におけるデータ入力端子部分、１，・・・ ，Ｌ
i ，・・・ ，ＬN はそれぞれライン番号を表し、ＬN は最
大ライン番号である。また、ＰTAB はデータ入力端子部
分１２のラインピッチ、１６は表示領域、１３は画素電
極１１における表示領域部分、ＰDOT は表示領域部分１
３のラインピッチ、１４は画素電極１１におけるデータ
入力端子部分１２と表示領域部分１３との間を接続する
導線電極部、ｄ（Ｌi ）はライン番号Ｌi の導線電極部
１４のデータ入力端子部分１２寄り箇所の幅、Ｄ（Ｌ
i ）はライン番号Ｌi の導線電極部１４の表示領域部分
１３寄り箇所の幅、１５は液晶を封止する封止シールの
領域である。封止シール領域１５にはセルギャップを均
一化させるためのスペーサー（図示せず）が含まれてい
る。In FIG. 2, 11 is a pixel electrode, 12 is a data input terminal portion of the pixel electrode 11, 1, ..., L.
i , ..., L N respectively represent line numbers, and L N is the maximum line number. Further, P TAB is a line pitch of the data input terminal portion 12, 16 is a display area, 13 is a display area portion in the pixel electrode 11, and P DOT is a display area portion 1.
3 is a line pitch, 14 is a conductive wire electrode portion connecting between the data input terminal portion 12 and the display area portion 13 of the pixel electrode 11, and d (L i ) is a data input terminal of the conductive wire electrode portion 14 of the line number L i The width of the portion near the portion 12, D (L
i ) is the width of the portion of the conducting wire electrode portion 14 having the line number L i near the display area portion 13, and 15 is the area of the sealing seal for sealing the liquid crystal. The sealing / sealing region 15 includes a spacer (not shown) for making the cell gap uniform.
【０００４】この種の液晶表示素子では、導線電極部１
４を挟むデータ入力端子部分２の端部と表示領域部分１
３の端部との間の直線距離が異なるなどのため、導線電
極部１４の互いの長さに違いを生じている。しかし、上
述したように、導線電極部１４の抵抗値が一定値になる
ように均一化させる必要があるため、従来は、導線電極
部１４の幅を、導線電極部領域１８の長さ方向全域にま
たがる境界線１７を境として、この境界線１７からデー
タ入力端子部分１２寄りの箇所と表示領域部分１３寄り
の箇所とで分け、それぞれの箇所における幅ｄ（Ｌ
i ），Ｄ（Ｌi ）を調整して抵抗値が一定となるように
均一化していた。In this type of liquid crystal display element, the conductor wire electrode portion 1
4, the end of the data input terminal portion 2 and the display area portion 1
Since the linear distance from the end of the wire 3 is different, the lengths of the conductor wire electrode portions 14 are different from each other. However, as described above, since it is necessary to make the resistance value of the conductive wire electrode portion 14 uniform so as to be a constant value, conventionally, the width of the conductive wire electrode portion 14 is set to the entire length direction of the conductive wire electrode portion region 18. A boundary line 17 extending over the boundary is used as a boundary, and the boundary line 17 is divided into a part closer to the data input terminal portion 12 and a part closer to the display area portion 13, and the width d (L
i ) and D (L i ) are adjusted so that the resistance value becomes uniform.
【０００５】この液晶表示素子の導線電極部１４の抵抗
値Ｒ（Ｌi ）は以下の数式で表される。ここで、ｒは導
線電極部１４のシート抵抗値、ｂは導線電極部領域１８
の長さである。The resistance value R (L i ) of the conducting wire electrode portion 14 of this liquid crystal display element is expressed by the following mathematical expression. Here, r is the sheet resistance value of the conductor wire electrode portion 14, and b is the conductor wire electrode portion region 18
Is the length of
【０００６】[0006]
【数１】 [Equation 1]
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の液晶表示素子の構成では、導線電極部１４の
封止シールの領域１５における箇所において細い部分が
あるため、このように、導線電極部１４の細すぎる部分
が、封止シール領域１５に含まれているスペーサーによ
ってクラックなどの物理ダメージを受けやすく、抵抗値
の変化などにより表示不良を起こすことがあった。However, in the structure of such a conventional liquid crystal display element, since there is a thin portion in the region 15 of the sealing seal of the conductive wire electrode portion 14, the conductive wire electrode portion is thus formed. An excessively thin portion of 14 is easily subject to physical damage such as cracks due to the spacers included in the sealing and sealing region 15, and a display failure may occur due to a change in resistance value.
【０００８】本発明はこのような課題を解決するもので
あり、抵抗値の均一化と導線電極の物理ダメージの軽減
を達成することにより表示不良を改善し、表示品位の良
い液晶表示素子を提供することを目的とする。The present invention solves such a problem and provides a liquid crystal display device with improved display quality and improved display quality by achieving a uniform resistance value and a reduction in physical damage to conductive wire electrodes. The purpose is to do.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決するため
に本発明は、一対の互いに直交する短冊状の画素電極が
形成された基板間に誘電異方性を有する液晶が狭持され
たＳＴＮ型液晶表示素子において、画素電極の表示領域
部分とデータ入力端子部分との間を接続する導線電極部
の、封止シールと密着する封止シール領域部分の線幅を
一定にしたものである。In order to solve the above-mentioned problems, the present invention provides an STN in which a liquid crystal having a dielectric anisotropy is sandwiched between a pair of substrates on each of which a pair of rectangular strip-shaped pixel electrodes are formed. In the liquid crystal display device of the type, the line width of the sealing seal region portion of the conducting wire electrode portion connecting between the display region portion of the pixel electrode and the data input terminal portion is in close contact with the sealing seal.
【００１０】本発明によれば、抵抗値の均一化と導線電
極の物理ダメージの軽減を達成することにより表示不良
を改善し、表示品位の良い液晶表示素子を提供すること
ができる。According to the present invention, it is possible to provide a liquid crystal display device with improved display quality by improving display defects by achieving uniform resistance and reduction of physical damage to the conductive wire electrodes.
【００１１】[0011]
【発明の実施の形態】請求項１記載の発明にかかる液晶
表示素子は、画素電極の表示領域部分とデータ入力端子
部分との間を接続する導線電極部の、封止シールと密着
する封止シール領域部分の線幅を一定にしたもので、導
線電極部の封止シール領域部分の線幅を一定に確保した
ことによってスペーサーによる物理ダメージを軽減させ
ることができる。A liquid crystal display device according to a first aspect of the present invention is a liquid crystal display device, wherein sealing is provided in close contact with a sealing seal of a conductive wire electrode portion connecting between a display area portion of a pixel electrode and a data input terminal portion. Since the line width of the seal area portion is constant, the line width of the sealing seal area portion of the conductive wire electrode portion is kept constant, whereby physical damage due to the spacer can be reduced.
【００１２】請求項２記載の発明は、請求項１記載の液
晶表示素子において、導線電極部の封止シール領域部分
の線幅を０．０８ｍｍ以上で一定にしたもので、よりス
ペーサーによる物理ダメージを軽減できる。According to a second aspect of the present invention, in the liquid crystal display element according to the first aspect, the line width of the sealing and sealing region portion of the conducting wire electrode portion is kept constant at 0.08 mm or more. Can be reduced.
【００１３】以下、その発明の実施の形態について図面
を参照しつつ説明する。なお、従来と同機能のものには
同符号を付して、その説明は省略する。図１に示すよう
に、この液晶表示素子においては、画素電極１１の表示
領域部分１３とデータ入力端子部分１２との間を接続す
る導線電極部１４の、封止シールと密着する封止シール
領域１５の部分（封止シール領域部分）２１の線幅を一
定の幅ｄに設定している。Embodiments of the invention will be described below with reference to the drawings. In addition, the same reference numerals are given to those having the same functions as the conventional ones, and the description thereof will be omitted. As shown in FIG. 1, in this liquid crystal display element, a sealing seal region of the conducting wire electrode portion 14 connecting between the display region portion 13 of the pixel electrode 11 and the data input terminal portion 12 is in close contact with the sealing seal. The line width of the portion 15 (sealing seal area portion) 21 is set to a constant width d.
【００１４】そして、導線電極部１４における封止シー
ル領域部分２１以外の箇所の線幅を調整して、抵抗値が
一定となるように均一化している。つまり、導線電極部
１４における封止シール領域部分２１よりも表示領域１
６寄りの部分において、例えば境界線１７を境として導
線電極部１４寄りの箇所は一定の線幅ｄ2 とし、境界線
１７よりも表示領域１６寄りの部分の線幅Ｄ（Ｌi ）を
調整して抵抗値が一定となるように均一化している。Then, the line width of the conductive wire electrode portion 14 other than the sealing and sealing region portion 21 is adjusted to make the resistance value uniform so as to be constant. In other words, the display area 1 is larger than the sealing / sealing area portion 21 in the conductor electrode portion 14.
For example, in the portion near the boundary line 17, the portion near the conducting wire electrode portion 14 has a constant line width d 2 in the portion near 6 and the line width D (L i ) of the portion closer to the display region 16 than the boundary line 17 is adjusted. Then, the resistance values are made uniform so as to be constant.
【００１５】この液晶表示素子の導線電極抵抗値Ｒ（Ｌ
i ）は以下の数式で表される。ここでｒは導線電極部１
４のシート抵抗値である。The resistance value R (L
i ) is expressed by the following mathematical formula. Where r is the lead wire electrode portion 1
4 is a sheet resistance value.
【００１６】[0016]
【数２】 [Equation 2]
【００１７】上記構成によれば、画素電極１１の導線電
極部１４における封止シール領域部分２１の線幅を一定
の幅ｄに設定しており、細すぎる部分などが封止シール
領域１５にはないので、封止シール内のスペーサーによ
る物理ダメージは軽減されることとなる。According to the above configuration, the line width of the sealing and sealing region portion 21 in the conducting wire electrode portion 14 of the pixel electrode 11 is set to a constant width d, and an excessively thin portion is in the sealing and sealing region 15. Since it does not exist, physical damage due to the spacer in the sealing seal is reduced.
【００１８】ここで、導線電極部１４における封止シー
ル領域１５の線幅は、０．０８ｍｍ以上で一定にした構
成がより好ましい。Here, it is more preferable that the line width of the sealing / sealing region 15 in the conductive wire electrode portion 14 is fixed to 0.08 mm or more.
【００１９】[0019]
【実施例】次に本発明の具体例を説明する。 （実施例１）画素電極１１におけるデータ入力端子部分
１２と表示領域部分１３とを接続する導線電極部領域１
８の長さが３．７６ｍｍ、データ入力端子部分１２の最
大ライン番号ＬN が１２０、データ入力端子部分１２の
ラインピッチＰTAB が０．１９ｍｍ、表示領域部分１３
のラインピッチＰDOT が０．２８８ｍｍ、封止シール領
域１５の長さが１．５ｍｍ、ライン番号Ｌi の導線電極
部１４の線幅を（表１）の通りとした。また、導線電極
のシート抵抗値ｒは７Ωである。Next, specific examples of the present invention will be described. (Embodiment 1) Conductive wire electrode region 1 for connecting the data input terminal portion 12 and the display region portion 13 of the pixel electrode 11
The length of 8 is 3.76 mm, the maximum line number L N of the data input terminal portion 12 is 120, the line pitch P TAB of the data input terminal portion 12 is 0.19 mm, and the display area portion 13
The line pitch P DOT is 0.288 mm, the length of the sealing and sealing region 15 is 1.5 mm, and the line width of the lead wire electrode portion 14 of the line number L i is as shown in (Table 1). Further, the sheet resistance value r of the conductor electrode is 7Ω.
【００２０】[0020]
【表１】 [Table 1]
【００２１】この実施の形態での導線電極部１４におけ
る封止シール領域１５の線幅を０．０６５ｍｍ、封止シ
ール領域１５以外の箇所における導線電極部１４寄りの
部分の線幅ｄ2 を０．０４７ｍｍとして抵抗を一定化す
ることができた。また、導線電極部１４の抵抗値Ｒ（Ｌ
i ）は、（数２）で示される数式により４９８Ωで均一
化された。In this embodiment, the line width of the sealing / sealing area 15 in the conductive wire electrode portion 14 is 0.065 mm, and the line width d 2 of the portion other than the sealing / sealing area 15 near the conductive wire electrode portion 14 is 0. The resistance could be made constant by setting 0.047 mm. Further, the resistance value R (L
i ) was made uniform with 498Ω by the mathematical formula shown in (Equation 2).
【００２２】これによって、従来構成では５％以上の確
率で発生していた表示不良を１％以下にすることができ
た。 （実施例２)画素電極１１におけるデータ入力端子部分
１２と表示領域部分１３とを接続する導線電極部領域１
８の長さが３．７９ｍｍ、データ入力端子部分１２の最
大ライン番号ＬN が１２０、データ入力端子部分１２の
ラインピッチＰTAB が０．１９ｍｍ、表示領域部分１３
のラインピッチＰDOT が０．３３ｍｍ、封止シール領域
１５の長さが１．５ｍｍ、ライン番号Ｌi の導線電極部
１４の線幅を（表２）の通りとした。また、導線電極の
シート抵抗値ｒは７Ωである。As a result, it was possible to reduce the display defects, which occurred in the conventional structure with a probability of 5% or more, to 1% or less. (Embodiment 2) Conductive wire electrode region 1 for connecting the data input terminal portion 12 and the display region portion 13 of the pixel electrode 11
8 has a length of 3.79 mm, the maximum line number L N of the data input terminal portion 12 is 120, the line pitch P TAB of the data input terminal portion 12 is 0.19 mm, and the display area portion 13 is
The line pitch P DOT was 0.33 mm, the length of the sealing / sealing region 15 was 1.5 mm, and the line width of the conducting wire electrode portion 14 of the line number L i was as shown in (Table 2). Further, the sheet resistance value r of the conductor electrode is 7Ω.
【００２３】[0023]
【表２】 [Table 2]
【００２４】この実施の形態での導線電極部１４におけ
る封止シール領域１５の線幅を０．０８ｍｍ、封止シー
ル領域１５以外の箇所における導線電極部１４寄りの部
分の線幅ｄ2 を０．０３１ｍｍとして抵抗を一定化する
ことができた。また、導線電極部１４の抵抗値Ｒ（Ｌ
i ）は、（数２）で示される数式により６２７Ωで均一
化された。In this embodiment, the line width of the sealing / sealing area 15 in the conductive wire electrode portion 14 is 0.08 mm, and the line width d 2 of the portion other than the sealing / sealing area 15 near the conductive wire electrode portion 14 is 0. The resistance could be made constant with 0.031 mm. Further, the resistance value R (L
i ) was made uniform at 627Ω by the mathematical formula shown in (Equation 2).
【００２５】これによって、従来構成では５％以上の確
率で発生していた表示不良をほぼ完全に無くすることが
できた。As a result, it was possible to almost completely eliminate the display defect that had occurred with a probability of 5% or more in the conventional configuration.
【００２６】[0026]
【発明の効果】このように請求項１記載の発明によれ
ば、導線電極の抵抗値の均一化をしつつ導線電極の封止
シールと密着する領域の線幅の一定化を行うことがで
き、封止シール内のスペーサによる物理ダメージを軽減
させることができて液晶表示素子の表示品位の向上を行
うことができる。As described above, according to the first aspect of the present invention, it is possible to uniformize the resistance value of the conductive wire electrode and uniformize the line width of the region in close contact with the sealing seal of the conductive wire electrode. The physical damage due to the spacer in the sealing seal can be reduced, and the display quality of the liquid crystal display element can be improved.
【００２７】さらに請求項２記載の発明は、導線電極の
抵抗値の均一化をしつつ導線電極の封止シールと密着す
る領域の線幅を０．０８ｍｍ以上にすることで、より表
示品位の向上を行うことができる。これは、封止シール
内のスペーサによる物理ダメージをより軽減させること
ができるためである。Further, according to the second aspect of the present invention, by making the resistance value of the conductive wire electrode uniform and setting the line width of the region in close contact with the sealing seal of the conductive wire electrode to be 0.08 mm or more, a more display quality can be obtained. Improvements can be made. This is because the physical damage due to the spacer in the sealing seal can be further reduced.
【図１】本発明の実施の形態を示す液晶表示素子の導線
電極部の構成を示す図FIG. 1 is a diagram showing a configuration of a conducting wire electrode portion of a liquid crystal display element showing an embodiment of the present invention.
【図２】従来の液晶表示素子の導線電極部の構成を示す
図FIG. 2 is a diagram showing a configuration of a conductive wire electrode portion of a conventional liquid crystal display element.
１１ 画素電極 １２ データ入力端子部分 １３ 表示領域部分 １４ 導線電極部 ２１ 封止シール領域部分 11 pixel electrode 12 data input terminal portion 13 display area portion 14 conducting wire electrode portion 21 sealing seal area portion
Claims (2)
が形成された基板間に誘電異方性を有する液晶が狭持さ
れたＳＴＮ型液晶表示素子において、画素電極の表示領
域部分とデータ入力端子部分との間を接続する導線電極
部の、封止シールと密着する封止シール領域部分の線幅
を一定にした液晶表示素子。1. An STN type liquid crystal display device in which a liquid crystal having a dielectric anisotropy is sandwiched between a pair of substrates on each of which a pair of orthogonal strip-shaped pixel electrodes are formed. A liquid crystal display element in which a line width of a sealing seal region portion of a conducting wire electrode portion connecting between a terminal portion and a sealing seal is in close contact.
を０．０８ｍｍ以上の線幅で一定にした請求項１記載の
液晶表示素子。2. The liquid crystal display element according to claim 1, wherein the line width of the sealing / sealing region of the conductive wire electrode portion is constant at a line width of 0.08 mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15143396A JP3337910B2 (en) | 1996-06-13 | 1996-06-13 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15143396A JP3337910B2 (en) | 1996-06-13 | 1996-06-13 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09329797A true JPH09329797A (en) | 1997-12-22 |
| JP3337910B2 JP3337910B2 (en) | 2002-10-28 |
Family
ID=15518515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15143396A Expired - Fee Related JP3337910B2 (en) | 1996-06-13 | 1996-06-13 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3337910B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990054284A (en) * | 1997-12-26 | 1999-07-15 | 김영환 | Liquid crystal display element |
| JP2000187451A (en) * | 1998-12-22 | 2000-07-04 | Fujitsu Ltd | Display device wiring design method and display device using the method |
| JP2004354961A (en) * | 2003-05-28 | 2004-12-16 | Chunghwa Picture Tubes Ltd | Electric conduction wire structure for liquid crystal display |
| KR100499107B1 (en) * | 2000-12-04 | 2005-07-01 | 롬 가부시키가이샤 | LIQUID CRYSTAL DISPLAY and ELECTRIC MODULE |
| JP2006189548A (en) * | 2005-01-05 | 2006-07-20 | Seiko Epson Corp | Electro-optical device and electronic apparatus |
| US7466387B2 (en) | 2002-08-07 | 2008-12-16 | Samsung Electronics Co., Ltd. | Integrated circuit and display device including integrated circuit |
| JP2009036871A (en) * | 2007-07-31 | 2009-02-19 | Ips Alpha Technology Ltd | Display device |
| KR100906103B1 (en) * | 2007-12-31 | 2009-07-07 | 엘지디스플레이 주식회사 | Array Board for Liquid Crystal Display |
-
1996
- 1996-06-13 JP JP15143396A patent/JP3337910B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990054284A (en) * | 1997-12-26 | 1999-07-15 | 김영환 | Liquid crystal display element |
| JP2000187451A (en) * | 1998-12-22 | 2000-07-04 | Fujitsu Ltd | Display device wiring design method and display device using the method |
| KR100499107B1 (en) * | 2000-12-04 | 2005-07-01 | 롬 가부시키가이샤 | LIQUID CRYSTAL DISPLAY and ELECTRIC MODULE |
| US7466387B2 (en) | 2002-08-07 | 2008-12-16 | Samsung Electronics Co., Ltd. | Integrated circuit and display device including integrated circuit |
| US7868988B2 (en) | 2002-08-07 | 2011-01-11 | Samsung Electronics Co., Ltd. | Integrated circuit and display device including integrated circuit |
| JP2004354961A (en) * | 2003-05-28 | 2004-12-16 | Chunghwa Picture Tubes Ltd | Electric conduction wire structure for liquid crystal display |
| JP2006189548A (en) * | 2005-01-05 | 2006-07-20 | Seiko Epson Corp | Electro-optical device and electronic apparatus |
| JP2009036871A (en) * | 2007-07-31 | 2009-02-19 | Ips Alpha Technology Ltd | Display device |
| TWI382231B (en) * | 2007-07-31 | 2013-01-11 | Panasonic Liquid Crystal Displ | Liquid crystal display device |
| KR100906103B1 (en) * | 2007-12-31 | 2009-07-07 | 엘지디스플레이 주식회사 | Array Board for Liquid Crystal Display |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3337910B2 (en) | 2002-10-28 |
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