JPH11119230A - Liquid crystal display device and its production - Google Patents
Liquid crystal display device and its productionInfo
- Publication number
- JPH11119230A JPH11119230A JP9280336A JP28033697A JPH11119230A JP H11119230 A JPH11119230 A JP H11119230A JP 9280336 A JP9280336 A JP 9280336A JP 28033697 A JP28033697 A JP 28033697A JP H11119230 A JPH11119230 A JP H11119230A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- gap
- liquid crystal
- sealant
- array substrate
- 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.)
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- Liquid Crystal (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、電極基板上に遮光
膜及び色材からなるカラーフィルタを有する液晶表示装
置おいて、特に電極基板間の間隙を一定に保持する液晶
表示装置及び液晶表示装置の製造方法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device having a light-shielding film and a color filter made of a coloring material on an electrode substrate, and more particularly to a liquid crystal display device and a liquid crystal display device in which the gap between the electrode substrates is kept constant. The present invention relates to an improvement in the production method of
【0002】[0002]
【従来の技術】ブラックストライプ或いはブラックマト
リクス等の遮光膜及びこの遮光膜の間に配置される赤
(R)、緑(G)、青(B)の3原色の色材からなるカ
ラーフィルタを有するカラー液晶表示装置(以下カラー
LCDと略称する。)は、従来図8及び図9に示す様に
形成されていた。即ち、透明な第1の絶縁基板1の走査
線2及び信号線3の交差部に設けられる薄膜トランジス
タ)以下TFTと略称する。)4にて駆動されるマトリ
クス状の画素電極6を有するアレイ基板7及び、透明な
第2の絶縁基板8上に遮光膜10a及び赤(R)、緑
(G)、青(B)の3原色の色材10bからなるカラー
フィルタ10及び、対向電極11を有する対向基板12
を、間隙を保持する為のプラスチックパール13を介し
てシール剤14にて貼り合わせ、間隙に液晶組成物16
を封入してカラーLCD17を形成していた。2. Description of the Related Art A light-shielding film such as a black stripe or a black matrix and a color filter composed of three primary color materials of red (R), green (G) and blue (B) are provided between the light-shielding films. A color liquid crystal display device (hereinafter, abbreviated as a color LCD) has conventionally been formed as shown in FIGS. That is, a thin film transistor provided at the intersection of the scanning line 2 and the signal line 3 on the transparent first insulating substrate 1) is hereinafter abbreviated as TFT. 3) On the array substrate 7 having the matrix-shaped pixel electrodes 6 driven by 4, and on the transparent second insulating substrate 8, a light-shielding film 10a and three of red (R), green (G), and blue (B) A color filter 10 made of a primary color material 10b and a counter substrate 12 having a counter electrode 11
Are adhered to each other with a sealant 14 via a plastic pearl 13 for holding a gap, and a liquid crystal composition 16 is attached to the gap.
To form a color LCD 17.
【0003】そして製造時にあっては、透明な第1の絶
縁基板1上に複数のアレイ基板7をパターン形成する一
方、透明な第2の絶縁基板8上に複数の対向基板12を
パターン形成した後、アレイ基板7上にプラスチックパ
ール13を散布し、更に表示領域6周囲を囲繞するシー
ル剤14を塗布し、アレイ基板7及び対向基板12を位
置合わせし、シール剤14を固化した後、それぞれ第1
乃至第4の切断線1a〜1dに沿ってアレイ基板を、8
a〜8dに沿って対向基板をブレイクし、所望の外形の
液晶セルを成形し、この後液晶セルの間隙に液晶組成物
16を封入していた。At the time of manufacturing, a plurality of array substrates 7 are patterned on a transparent first insulating substrate 1 and a plurality of opposing substrates 12 are patterned on a transparent second insulating substrate 8. Thereafter, a plastic pearl 13 is sprayed on the array substrate 7, a sealant 14 surrounding the periphery of the display area 6 is further applied, the array substrate 7 and the counter substrate 12 are aligned, and the sealant 14 is solidified. First
To an array substrate along the fourth to fourth cutting lines 1a to 1d.
The opposite substrate was broken along a to 8d to form a liquid crystal cell having a desired outer shape, and then the liquid crystal composition 16 was sealed in the gap between the liquid crystal cells.
【0004】[0004]
【発明が解決しようとする課題】しかしながら上記カラ
ーLCD17にあっては、遮光膜10aが、対向基板1
2の第1乃至第4の切断線12a〜12dの外方迄延在
しているため、第1の絶縁基板1及び第2の絶縁基板8
をブレイクし、アレイ基板7及び対向基板12の外形を
成形する際、遮光膜10aのバリを発生し、このバリの
アレイ基板7との接触により、アレイ基板7上の走査線
2あるいは信号線3等が切断され、表示不良発生による
歩留まりの低下を来していた。又、遮光膜10aが導電
性材料から成る場合には、第1の絶縁基板1及び第2の
絶縁基板8のブレイク時に発生された遮光膜10aのバ
リが走査線2あるいは信号線3を切断しなくても、走査
線2あるいは信号線3に接触しただけでも、走査線2及
び信号線3間でショートを生じる等により、表示不良を
発生し歩留まりの低下を来すという問題を生じていた。However, in the color LCD 17, the light-shielding film 10a is
The first and second insulating substrates 1 and 8 extend to the outside of the first to fourth cutting lines 12a to 12d.
When the outer shape of the array substrate 7 and the counter substrate 12 is formed, burrs of the light-shielding film 10a are generated, and the burrs come into contact with the array substrate 7 so that the scanning lines 2 or the signal lines 3 on the array substrate 7 are formed. And the like have been cut, and the yield has been reduced due to the occurrence of display defects. When the light-shielding film 10a is made of a conductive material, burrs of the light-shielding film 10a generated at the time of breaking the first insulating substrate 1 and the second insulating substrate 8 cut the scanning lines 2 or the signal lines 3. Even if the scanning line 2 or the signal line 3 is simply contacted, a short circuit occurs between the scanning line 2 and the signal line 3, thereby causing a problem that a display defect occurs and a yield is reduced.
【0005】そこで本発明は上記課題を除去するもの
で、アレイ基板及び対向基板の外形成形時、対向基板上
に形成される遮光膜のバリによりアレイ基板上の配線を
損傷し、配線を切断したり、ショートにより配線に電気
的な悪影響を与える事が無く、配線損傷が原因の表示不
良を生じる事がなく、良好な表示品位を得られ、製造歩
留まりの高い液晶表示装置及び液晶表示装置の製造方法
を提供する事を目的とする。In view of the above, the present invention has been made to solve the above-mentioned problems, and at the time of forming the outer shapes of the array substrate and the counter substrate, the burrs of the light shielding film formed on the counter substrate damage the wiring on the array substrate and cut the wiring. Of a liquid crystal display device having a high production yield and a high production yield without causing an adverse electrical effect on the wiring due to short circuit or short circuit, causing no display failure due to wiring damage. The purpose is to provide a method.
【0006】[0006]
【課題を解決するための手段】本発明は上記課題を解決
する為の手段として、マトリクス状に配置され、走査線
及び信号線より信号が入力される薄膜トランジスタにて
駆動される画素電極を有するアレイ基板と、対向電極を
有し前記アレイ基板と所定の間隙を隔てて対向配置され
る対向基板と、前記画素電極周囲にて前記間隙を囲繞す
るシール剤と、このシール剤に囲繞される領域に封入さ
れる液晶組成物と、前記対向基板に形成され、端部が前
記シール剤の配置領域より外側に延在しない様配置され
る遮光膜及び色材からなるカラーフィルタ層と、前記シ
ール剤を挟む様前記シール剤両側に設けられ前記アレイ
基板及び前記対向基板の前記間隙を一定に保持する間隙
保持用柱とを設けるものである。According to the present invention, there is provided, as a means for solving the above-mentioned problems, an array having pixel electrodes arranged in a matrix and driven by thin film transistors to which signals are inputted from scanning lines and signal lines. A substrate, a counter substrate that has a counter electrode and is disposed to face the array substrate with a predetermined gap therebetween, a sealant surrounding the gap around the pixel electrode, and a region surrounded by the seal agent. A liquid crystal composition to be enclosed, a color filter layer made of a light-shielding film and a coloring material formed on the counter substrate and arranged so that an end does not extend outside the region where the sealant is disposed, and the sealant. A gap holding column is provided on both sides of the sealant so as to sandwich the gap between the array substrate and the opposing substrate.
【0007】又本発明は上記課題を解決するための手段
として、マトリクス状に配置され、走査線及び信号線よ
り信号が入力される薄膜トランジスタにて駆動される画
素電極を有するアレイ基板と、対向電極を有し前記アレ
イ基板と所定の間隙を隔てて対向配置される対向基板
と、前記画素電極周囲にて前記間隙を囲繞するシール剤
と、このシール剤に囲繞される領域に封入される液晶組
成物と、前記対向基板に形成され、端部が前記シール剤
の配置領域より外側に延在しない様配置される遮光膜及
び色材からなるカラーフィルタ層とを有する液晶表示装
置の製造方法において、第1の絶縁基板に前記走査線及
び前記信号線より信号が入力される前記薄膜トランジス
タにて駆動されるマトリクス状の前記画素電極を形成し
前記アレイ基板を形成する工程と、第2の絶縁基板に前
記遮光膜及び前記色材からなる前記カラーフィルタ層と
遮光膜及び色材からなるカラーフィルタ層及び前記対向
電極を形成し前記対向基板を形成する工程と、前記アレ
イ基板及び/又は前記対向基板の前記シール剤の配置領
域を挟み両側に、前記アレイ基板及び前記対向基板の前
記間隙を一定に保持する間隙保持用柱を形成する工程
と、前記シール剤を、前記間隙保持用柱の間に位置する
よう前記アレイ基板及び/又は前記対向基板に塗布する
工程と、前記アレイ基板及び前記対向基板を前記間隙を
隔てて接着する工程と、前記アレイ基板及び前記対向基
板を所定形状にブレイク形成する工程とを実施するもの
である。According to another aspect of the present invention, there is provided an array substrate having pixel electrodes arranged in a matrix and driven by thin film transistors to which signals are input from scanning lines and signal lines, and a counter electrode. An opposing substrate having a predetermined gap with the array substrate, a sealant surrounding the gap around the pixel electrode, and a liquid crystal composition sealed in a region surrounded by the sealant. And a color filter layer formed of a coloring material and a light-shielding film formed on the counter substrate and having an end not extending outside the region where the sealant is disposed. The pixel electrodes in a matrix shape driven by the thin film transistors to which signals are input from the scanning lines and the signal lines are formed on a first insulating substrate, and the array substrate is formed. Forming a color filter layer made of the light-shielding film and the color material and a color filter layer made of the light-shielding film and a color material and the counter electrode on a second insulating substrate to form the counter substrate, Forming, on both sides of the array substrate and / or the opposing substrate with the sealant disposing region therebetween, gap holding columns for holding the gap between the array substrate and the opposing substrate constant; Coating the array substrate and / or the opposing substrate so as to be located between the gap holding pillars, bonding the array substrate and the opposing substrate with the gap therebetween, And forming a break in the counter substrate into a predetermined shape.
【0008】上記構成により本発明は、カラーフィルタ
層をシール剤の配置領域より外側に延在しない様形成す
る事により、液晶セルの外形成形時、遮光膜をブレイク
しない事から、従来ブレイクにより遮光膜に発生された
バリとの接触による配線の断線あるいはショート等の表
示不良を防止し、表示品位の良い且つ製造歩留まりの高
い液晶表示装置を得る物である。又、シール剤を挟む両
側に間隙保持用柱が設けられることから、シール剤塗布
領域にカラーフィルタ層端部が存在するか否かに拘わら
ず、アレイ基板及び対向基板間の間隙を均一に保持し、
製造精度の高い液晶セルを得られ、ひいては良好な表示
品位を有する液晶表示装置を得るものである。According to the present invention, the color filter layer is formed so as not to extend outside the region where the sealant is disposed, so that the light-shielding film is not broken when the outer shape of the liquid crystal cell is formed. It is an object of the present invention to provide a liquid crystal display device having good display quality and high production yield by preventing display defects such as disconnection or short circuit of wiring due to contact with burrs generated in a film. In addition, since gap holding columns are provided on both sides sandwiching the sealant, the gap between the array substrate and the counter substrate is uniformly held regardless of whether the end portion of the color filter layer exists in the sealant application area. And
It is an object of the present invention to obtain a liquid crystal cell with high manufacturing accuracy and to obtain a liquid crystal display device having good display quality.
【0009】[0009]
【発明の実施の形態】以下本発明を、図1乃至図5に示
す実施の形態を参照して説明する。図1及び図2は、ア
クティブマトリクス型のカラーLCD18の一部を示す
概略断面図及び平面図であり、駆動素子としてTFT2
7を用いるアレイ基板21及び、対向基板22を対向配
置して成る所定の間隙に液晶組成物29を封入してなっ
ている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. 1 and 2 are a schematic sectional view and a plan view, respectively, showing a part of an active matrix type color LCD 18, in which a TFT 2 is used as a driving element.
A liquid crystal composition 29 is sealed in a predetermined gap formed by arranging an array substrate 21 using a substrate 7 and an opposing substrate 22 to face each other.
【0010】ここでアレイ基板21は、ガラスからなる
第1の絶縁基板23上に走査線24及び信号線26から
信号が入力されるTFT27にて駆動されるインジウム
錫酸化物(以下ITOと略称する。)からなり、マトリ
クス状にパターン形成される画素電極28を有し、保護
膜を成膜した上に更にポリイミドからなる配向膜30が
塗布されている。30aはアレイ基板周縁にて、後述す
る第2の間隙保持用柱に当接する補助部材であり、走査
線24或いは信号線26並びに配向膜30と同一部材に
て、同時形成されている。The array substrate 21 is made of indium tin oxide (hereinafter abbreviated as ITO) driven by a TFT 27 to which signals are inputted from scanning lines 24 and signal lines 26 on a first insulating substrate 23 made of glass. ), A pixel electrode 28 patterned in a matrix, a protective film is formed, and an alignment film 30 made of polyimide is further applied. Reference numeral 30a denotes an auxiliary member, which is in contact with a second gap holding column, which will be described later, at the periphery of the array substrate, and is formed simultaneously with the same member as the scanning line 24 or the signal line 26 and the alignment film 30.
【0011】対向基板22は、ガラスからなる第2の絶
縁基板31上に、遮光膜であり、クロム(Cr)からな
るブラックマトリクス(以下BMと略称する。)32及
び、このBM32の間に赤(R)、緑(G)、青(B)
の3原色の色材33、34、35をストライプ状に配置
して成るカラーフィルタ37上に平坦化層38を介しI
TOからなる対向電極40を有し、更に保護膜41上に
ポリイミドからなる配向膜42が塗布されている。尚カ
ラーフィルタ37端部は、後述するシール剤44の塗布
領域内迄延在している。The opposing substrate 22 is a light shielding film on a second insulating substrate 31 made of glass, a black matrix (hereinafter abbreviated as BM) 32 made of chromium (Cr), and a red matrix between the BMs 32. (R), green (G), blue (B)
Of the three primary colors 33, 34, and 35 in a stripe pattern on a color filter 37 via a flattening layer 38.
It has a counter electrode 40 made of TO, and an alignment film 42 made of polyimide is applied on a protective film 41. Note that the end of the color filter 37 extends to an area where a sealant 44 to be described later is applied.
【0012】43aは、対向基板22周縁にて、BM3
2及びこの上に積層される色材33、34、35、配向
膜42からなる第1の間隙保持用柱で有り、43bは、
表示領域中に形成されるBM32と同一材料にて同一厚
さに形成される層50及びこの上に積層される色材3
3、34、35、配向膜42からなる第2の間隙保持用
柱である。そしてアレイ基板21及び、対向基板22
は、第1及び第2の間隙保持用柱43a、43bに挟ま
れる領域に塗布されるシール剤44にて固着され、シー
ル剤44に囲繞される間隙に液晶組成物29を封入して
いる。更に46、47は偏向板である。Reference numeral 43a denotes a BM3 at the periphery of the counter substrate 22.
2 and a first gap holding pillar composed of coloring materials 33, 34, 35 and an alignment film 42 laminated thereon.
A layer 50 formed of the same material and having the same thickness as the BM 32 formed in the display area, and a color material 3 laminated thereon;
This is a second column for maintaining a gap, which is composed of 3, 34, 35 and an alignment film 42. Then, the array substrate 21 and the opposing substrate 22
Is fixed with a sealant 44 applied to a region sandwiched between the first and second gap holding columns 43a and 43b, and the liquid crystal composition 29 is sealed in a gap surrounded by the sealant 44. Further, 46 and 47 are deflection plates.
【0013】次にカラーLCD18の製造工程について
述べる。先ずアレイ基板21を複数形成可能なサイズの
第1の絶縁基板23上に、成膜技術及びフォトリソグラ
フィ技術を繰り返し、走査線24、信号線26、TFT
27及び画素電極28を複数パターン形成しその上に保
護膜、配向膜30をパターン形成し、図3に示すよう
に、複数のアレイ基板パターン48を形成する。Next, a manufacturing process of the color LCD 18 will be described. First, a film formation technique and a photolithography technique are repeated on a first insulating substrate 23 having a size capable of forming a plurality of array substrates 21, and a scanning line 24, a signal line 26, and a TFT are formed.
27 and the pixel electrode 28 are formed in a plurality of patterns, a protective film and an alignment film 30 are formed on the pattern, and a plurality of array substrate patterns 48 are formed as shown in FIG.
【0014】次に、対向基板22を複数形成可能なサイ
ズの第2の絶縁基板31上に、成膜技術及びフォトリソ
グラフィ技術により、図4(a)に示す様に厚さ200
nmのBM32を複数パターン形成すると共に、BM3
2周囲にBM32と同一材料、同一厚さの層50をパタ
ーン形成する。次いで図4(b)に示す様に、第1の貫
通孔51aが形成される第1のマスク51を用い、BM
32の間隙に赤(R)の色材33をストライプ状に塗布
する。但し、第1のマスク51のBM32周縁部及び層
50に対応する位置には、BM32及び層50上に色材
33、34、35を積層するための柱用の第2の貫通孔
51bが形成されており、BM32及び層50上に赤
(R)の色材33が厚さ1500nm塗布される。Next, a film having a thickness of 200 as shown in FIG. 4A is formed on a second insulating substrate 31 having a size capable of forming a plurality of opposing substrates 22 by a film forming technique and a photolithography technique.
and a plurality of patterns of BM32 nm.
A layer 50 of the same material and the same thickness as the BM 32 is patterned around the periphery of the BM 32. Next, as shown in FIG. 4B, the BM is formed using a first mask 51 in which a first through hole 51a is formed.
A red (R) color material 33 is applied in a stripe shape to the gap 32. However, a second through hole 51b for a pillar for laminating the coloring materials 33, 34, 35 on the BM 32 and the layer 50 is formed at a position corresponding to the peripheral portion of the BM 32 and the layer 50 of the first mask 51. The red (R) color material 33 is applied on the BM 32 and the layer 50 to a thickness of 1500 nm.
【0015】次いで図4(c)、(d)に示す様に、赤
(R)の色材33と同様に、第1の貫通孔52a,53
aが形成される第2或いは第3のマスク52、53を用
い、BM32の間隙に緑(G)、青(B)の色材34、
35をストライプ状に塗布しカラーフィルタ37を形成
する一方、柱用の第2の貫通孔52b、53bにより、
BM32及び層50上の赤(R)の色材33の上に、緑
(G)、青(B)の色材34、35を厚さ1500n
m、づつ順次積層塗布して、第1及び第2の間隙保持用
柱43a,43bを完成する。但し、BM32及び層5
0上に積層される色材33〜35は、アレイ基板21及
び対向基板22間の間隙に応じてその高さを調整され
る。Next, as shown in FIGS. 4C and 4D, like the red (R) color material 33, the first through holes 52a and 53 are formed.
The green (G) and blue (B) color materials 34 are provided in the gaps of the BM 32 by using the second or third masks 52 and 53 in which a is formed.
35 is applied in a stripe shape to form the color filter 37, while the second through holes 52b and 53b for pillars
On the BM 32 and the red (R) color material 33 on the layer 50, green (G) and blue (B) color materials 34 and 35 are formed to a thickness of 1500 n.
m, and then sequentially laminating and coating the first and second gap holding columns 43a and 43b. However, BM32 and layer 5
The heights of the color materials 33 to 35 stacked on 0 are adjusted according to the gap between the array substrate 21 and the counter substrate 22.
【0016】この後図4(e)に示すようにカラーフィ
ルタ37上に平坦化層38を介し対向電極40を形成
し、間隙保持用柱43を覆って対向電極上に配向膜42
をパターン形成し、図5に示すように、第2の絶縁基板
31上に、周囲に第1及び第2の間隙保持用柱43a、
43bが形成される複数の対向基板パターン58を形成
する。この時第1及び第2の間隙保持用柱43a、43
bの高さは約4500nmとされる。少なくとも液晶セ
ルとした時に引き出し線が配置される辺に沿って、間隙
保持用柱が形成されていれば良い。Thereafter, as shown in FIG. 4E, an opposing electrode 40 is formed on the color filter 37 with a flattening layer 38 interposed therebetween.
The first and second gap holding pillars 43a are formed around the second insulating substrate 31 on the periphery thereof, as shown in FIG.
A plurality of opposing substrate patterns 58 on which 43b are formed are formed. At this time, the first and second gap holding columns 43a, 43
The height of b is about 4500 nm. It is only necessary that the column for maintaining the gap is formed at least along the side where the lead lines are arranged in the liquid crystal cell.
【0017】この後、配向膜30、42を夫々ラビング
処理し、対向基板22の第1及び第2の間隙保持用柱4
3a、43bで挟まれる領域にシール剤44を塗布した
後、アレイ基板21及び対向基板22が重なり合うよう
位置合わせして、第1の絶縁基板23及び第2の絶縁基
板31を張り合わせる。次に第1の絶縁基板23及び第
2の絶縁基板31をそれぞれアレイ基板21及び対向基
板22の第1乃至第4の切断線21a〜21d及び22
a〜22dに沿ってブレイクし、所定の外形の液晶セル
を成形する。この時対向基板22にあっては、カラーフ
ィルタ37のBM32は、シール剤44の塗布領域迄し
か延在されておらず、第1〜第4の切断線22a〜22
dでのブレイク時、切断されない様になっている。Thereafter, the alignment films 30 and 42 are subjected to rubbing treatment, respectively, so that the first and second gap holding columns 4 of the counter substrate 22 are formed.
After the sealant 44 is applied to the region sandwiched between 3a and 43b, the array substrate 21 and the opposing substrate 22 are aligned so as to overlap, and the first insulating substrate 23 and the second insulating substrate 31 are bonded. Next, the first insulating substrate 23 and the second insulating substrate 31 are respectively connected to the first to fourth cutting lines 21 a to 21 d and 22 of the array substrate 21 and the counter substrate 22.
Breaking is performed along a to 22d to form a liquid crystal cell having a predetermined outer shape. At this time, in the counter substrate 22, the BM 32 of the color filter 37 extends only up to the application region of the sealant 44, and the first to fourth cutting lines 22a to 22
At the time of the break at d, it is not cut.
【0018】この後シール剤44に囲繞されるアレイ基
板21及び対向基板22の間隙に液晶組成物29を注入
し、偏向板46、47を貼着しカラーLCD18を完成
する。Thereafter, the liquid crystal composition 29 is injected into the gap between the array substrate 21 and the counter substrate 22 surrounded by the sealant 44, and the polarizing plates 46 and 47 are adhered to complete the color LCD 18.
【0019】このようにして製造されたカラーLCD1
8を用い、表示試験を行ったところ走査線24あるいは
信号線26の断線やショートによる表示不良が見られ
ず、良好な表示品位を得られた。The color LCD 1 thus manufactured
When a display test was performed using Sample No. 8, no display defect due to disconnection or short circuit of the scanning line 24 or the signal line 26 was observed, and good display quality was obtained.
【0020】このように構成すれば、カラーフィルタ3
7のBM32がシール剤44の塗布領域迄しか延在され
ておらず、アレイ基板21及び、対向基板22の外形成
形時、第1及び第2の絶縁基板23、31をブレイクし
ても、BM32がブレイクされる事が無く、従来の様
に、バリによりアレイ基板21上の走査線24や信号線
26を損傷し或いはショートする事が無く、配線に電気
的な悪影響を与える事無く、高品位の表示画像を得ら
れ、従来に比し不良の発生が少なく、製造歩留まりの向
上を図れる。With this configuration, the color filter 3
7, the BM 32 extends only up to the region where the sealant 44 is applied. Even when the first and second insulating substrates 23 and 31 are broken at the time of forming the outer shape of the array substrate 21 and the counter substrate 22, the BM 32 Is not broken, the scanning lines 24 and the signal lines 26 on the array substrate 21 are not damaged or short-circuited due to burrs as in the conventional case, and the wiring is not adversely affected electrically, and high quality is achieved. Can be obtained, the occurrence of defects is smaller than in the past, and the production yield can be improved.
【0021】更に本実施の形態にあっては、第1及び第
2の間隙保持用柱43a、43bで挟まれる領域にシー
ル剤44を塗布し、アレイ基板21及び対向基板22を
張り合わせる事から、BM32端部がシール剤44塗布
領域に延在して両基板21、22の間隙に段差を生じて
いても、貼り合わせ時、シール剤44は、第1及び第2
の間隙保持用柱43a、43bによりその厚さを一定に
規制され、ひいては両基板21、22の間隙を均一に保
持出来、良好な表示品位をえられる。しかも間隙保持用
柱43a、43bを、カラーフィルタ37を構成する材
料と同一材料にて、カラーフィルタ37形成時に同時に
形成出来、特に間隙保持用柱を製造するための工程を新
たに実施する必要が無く、製造コストの増大を招く事も
無い。Further, in this embodiment, a sealant 44 is applied to a region sandwiched between the first and second gap holding columns 43a and 43b, and the array substrate 21 and the opposing substrate 22 are bonded together. , The end of the BM 32 extends to the region where the sealant 44 is applied, so that the gap between the two substrates 21 and 22 causes a step.
The thickness of the gap holding columns 43a and 43b is regulated to be constant, and thus the gap between the substrates 21 and 22 can be uniformly held, and good display quality can be obtained. Moreover, the gap holding columns 43a and 43b can be formed simultaneously with the formation of the color filter 37 using the same material as the material forming the color filter 37. In particular, it is necessary to newly perform a process for manufacturing the gap holding columns. There is no increase in manufacturing cost.
【0022】尚本発明は上記実施の形態に限られるもの
でなく、その趣旨を変えない範囲での変更は可能であっ
て、例えば間隙保持用柱の材質或いは製造方法等任意で
有り、カラーフィルタとは別の樹脂等にて形成する等し
ても良いし、対向基板では無く、アレイ基板側に設けて
も良い。又遮光膜はシール剤の外側に延在しなければ、
図6に示す第1の変形例の様に対向基板60にて、シー
ル剤61の塗布領域の内側にカラーフィルタ62の端部
が位置する様に設けカラーLCD65を形成しても良
い。更に、LCDの間隙を一定に保持出来るものであれ
ば、間隙保持用柱の配置位置も限定されず、例えば図7
に示す第2の変形例の様に、対向基板64上に第1及び
第2の間隙保持用柱66、67を配置し、シール剤68
を固着後、第2の間隙保持用柱67とシール剤68との
間の第1〜第4の接断面70〜73で切断する等しても
良い。The present invention is not limited to the above-described embodiment, but can be modified without departing from the spirit of the invention. It may be formed of a different resin or the like, or may be provided on the array substrate side instead of the counter substrate. If the light-shielding film does not extend outside the sealant,
As in the first modification shown in FIG. 6, a color LCD 65 may be formed on the opposing substrate 60 such that the end of the color filter 62 is located inside the application region of the sealant 61. Further, as long as the gap between the LCDs can be held constant, the arrangement position of the gap holding columns is not limited.
As shown in a second modification shown in FIG. 1, first and second gap holding columns 66 and 67 are arranged on a counter substrate 64, and a sealant 68 is provided.
May be cut at the first to fourth contact sections 70 to 73 between the second gap holding pillar 67 and the sealing agent 68.
【0023】又、遮光膜の厚さも任意であるが、特に5
00nm以上の厚い遮光膜の場合には、遮光膜が有る領
域と無い領域とでは段差が大きくなる事から、間隙保持
用柱による間隙の均一化がより効果を得られる。尚間隙
保持用柱の形状も円柱に限らずシール剤に沿ってライン
状に設ける等任意である。The thickness of the light-shielding film is not limited.
In the case of a thick light-shielding film having a thickness of 00 nm or more, the step becomes large between the region where the light-shielding film is present and the region where the light-shielding film is not present. The shape of the column for maintaining the gap is not limited to a circular column, but may be arbitrary such as being provided in a line along the sealant.
【0024】[0024]
【発明の効果】以上説明したように本発明によれば、カ
ラーLCDのアレイ基板及び対向基板からなる液晶セル
をブレイクする等して外形を所望形状に成形する際、対
向基板の切断線に遮光膜のバリを生じる事が無く、従来
の様に、バリによりアレイ基板上の配線を損傷し或いは
ショートし、電気的な悪影響により不良を生じる事が無
く、高品位の表示画像を得られ、製造歩留まりの向上を
図れる。As described above, according to the present invention, when the outer shape is formed into a desired shape by, for example, breaking a liquid crystal cell composed of an array substrate and a counter substrate of a color LCD, light is shielded by a cutting line of the counter substrate. No burrs on the film, no damage or short-circuit on the array substrate due to burrs, no defects due to adverse electrical effects, and high quality display images can be obtained. The yield can be improved.
【0025】又、アレイ基板及び対向基板を固着するシ
ール剤を、対向基板に形成される間隙保持用柱に挟まれ
る領域に配置する事により、シール剤の塗布領域にカラ
ーフィルタ層端部が延在し、塗布領域内に於いてカラー
フィルタ層の有無により両基板の間隙に段差を生じてい
ても、間隙保持用柱によりシール剤固着部位を一定厚さ
に規制出来、ひいてはアレイ基板及び対向基板間の間隙
を均一に保持でき、間隙ムラを生じる事無く、良好な表
示品位を得ることが出来る。Further, by disposing a sealant for fixing the array substrate and the opposing substrate in a region sandwiched between the gap holding columns formed on the opposing substrate, the end of the color filter layer extends to the application region of the sealant. Therefore, even if there is a step in the gap between the two substrates due to the presence or absence of the color filter layer in the application area, the sealant fixing portion can be regulated to a fixed thickness by the gap holding columns, and thus the array substrate and the counter substrate The gap between them can be kept uniform, and good display quality can be obtained without causing gap unevenness.
【図1】本発明の実施の形態のカラーLCDの一部概略
断面図である。FIG. 1 is a partial schematic cross-sectional view of a color LCD according to an embodiment of the present invention.
【図2】本発明の実施の形態のカラーLCDを示し
(a)はその概略平面図、(b)はその図2(a)のA
−A´線における概略断面図である。2A and 2B show a color LCD according to an embodiment of the present invention, wherein FIG. 2A is a schematic plan view, and FIG.
It is a schematic sectional drawing in the -A 'line.
【図3】本発明の実施の形態の第1の絶縁基板上に形成
される複数のアレイ基板パターンを示す概略説明図であ
る。FIG. 3 is a schematic explanatory view showing a plurality of array substrate patterns formed on a first insulating substrate according to the embodiment of the present invention.
【図4】本発明の実施の形態の対向基板の製造工程を示
す概略工程図で有り(a)はそのBM形成時を示し、
(b)はその赤(R)の色材塗布時を示し、(c)はそ
の緑(G)の色材塗布時を示し、(d)はその青(B)
の色材塗布時を示し、(e)はその配向膜形成時を示す
概略説明図である。FIGS. 4A and 4B are schematic process diagrams showing a manufacturing process of the counter substrate according to the embodiment of the present invention, wherein FIG.
(B) shows the time when the red (R) color material is applied, (c) shows the time when the green (G) color material is applied, and (d) shows the blue (B).
(E) is a schematic explanatory view showing the time of forming the alignment film.
【図5】本発明の実施の形態の第2の絶縁基板上に形成
される複数の対向基板パターンを示す概略説明図であ
る。FIG. 5 is a schematic explanatory view showing a plurality of opposing substrate patterns formed on a second insulating substrate according to the embodiment of the present invention.
【図6】本発明の第1の変形例を示す一部概略断面図で
ある。FIG. 6 is a partial schematic sectional view showing a first modification of the present invention.
【図7】本発明の第2の変形例を示す一部概略断面図で
ある。FIG. 7 is a partial schematic sectional view showing a second modification of the present invention.
【図8】従来のカラーLCDを示す一部概略断面図であ
る。FIG. 8 is a partial schematic cross-sectional view showing a conventional color LCD.
【図9】従来のカラーLCDを示す概略平面図である。FIG. 9 is a schematic plan view showing a conventional color LCD.
18…カラーLCD 21…アレイ基板 22…対向基板 23…第1の絶縁基板 24…走査線 26…信号線 27…TFT 28…画素電極 29…液晶組成物 31…第2の絶縁基板 32…BM 33、34、35…色材 37…カラーフィルタ 40…対向電極 43a…第1の間隙保持用柱 43b…第2の間隙保持用柱 44…シール剤 50…層 51…第1のマスク 52…第2のマスク 53…第3のマスク Reference Signs List 18 color LCD 21 array substrate 22 opposed substrate 23 first insulating substrate 24 scanning line 26 signal line 27 TFT 28 pixel electrode 29 liquid crystal composition 31 second insulating substrate 32 BM 33 .., 34, 35... Color material 37... Color filter 40... Counter electrode 43a... First gap holding pillar 43b. Mask 53 ... third mask
Claims (6)
号線より信号が入力される薄膜トランジスタにて駆動さ
れる画素電極を有するアレイ基板と、対向電極を有し前
記アレイ基板と所定の間隙を隔てて対向配置される対向
基板と、前記画素電極が配置される表示領域周囲にて前
記間隙を囲繞するシール剤と、このシール剤に囲繞され
る領域に封入される液晶組成物と、前記対向基板に形成
され、端部が前記シール剤の配置領域より外側に延在し
ない様配置される遮光膜及び色材からなるカラーフィル
タ層と、前記シール剤を挟む様前記シール剤両側に設け
られ前記アレイ基板及び前記対向基板の前記間隙を一定
に保持する間隙保持用柱とを具備する事を特徴とする液
晶表示装置。1. An array substrate having pixel electrodes which are arranged in a matrix and driven by a thin film transistor to which signals are input from a scanning line and a signal line, and which has a counter electrode and has a predetermined gap from the array substrate And a liquid crystal composition enclosed in a region surrounded by the sealant, the sealant surrounding the gap around the display area where the pixel electrode is arranged, and the counter substrate. And a color filter layer made of a light-shielding film and a coloring material arranged so that an end does not extend outside the arrangement region of the sealant, and the array provided on both sides of the sealant so as to sandwich the sealant. A liquid crystal display device comprising: a substrate; and a gap holding column that holds the gap between the counter substrate and the counter substrate constant.
料を用い前記対向基板上に形成された事を特徴とする請
求項1に記載の液晶表示装置。2. The liquid crystal display device according to claim 1, wherein the gap maintaining pillar is formed on the counter substrate using a material forming the counter substrate.
ラーフィルタ層の一部を含む事を特徴とする請求項2に
記載の液晶表示装置。3. The liquid crystal display device according to claim 2, wherein the material forming the opposite substrate includes at least a part of the color filter layer.
けられる間隙保持用柱の層方向の断面構造が同一である
事を特徴とする請求項1に記載の液晶表示装置。4. The liquid crystal display device according to claim 1, wherein the gap maintaining columns provided on both sides of the sealing agent so as to sandwich the sealing agent have the same sectional structure in the layer direction.
を特徴とする請求項1乃至請求項4のいずれかに記載の
液晶表示装置。5. The liquid crystal display device according to claim 1, wherein the thickness of the light shielding film is 500 nm or more.
号線より信号が入力される薄膜トランジスタにて駆動さ
れる画素電極を有するアレイ基板と、対向電極を有し前
記アレイ基板と所定の間隙を隔てて対向配置される対向
基板と、前記画素電極周囲にて前記間隙を囲繞するシー
ル剤と、このシール剤に囲繞される領域に封入される液
晶組成物と、前記対向基板に形成され、端部が前記シー
ル剤の配置領域より外側に延在しない様配置される遮光
膜及び色材からなるカラーフィルタ層とを有する液晶表
示装置の製造方法において、 第1の絶縁基板に前記走査線及び前記信号線より信号が
入力される前記薄膜トランジスタにて駆動されるマトリ
クス状の前記画素電極を形成し前記アレイ基板を形成す
る工程と、 第2の絶縁基板に前記遮光膜及び前記色材からなる前記
カラーフィルタ層と遮光膜及び色材からなるカラーフィ
ルタ層及び前記対向電極を形成し前記対向基板を形成す
る工程と、 前記アレイ基板及び/又は前記対向基板の前記シール剤
の配置領域を挟み両側に、前記アレイ基板及び前記対向
基板の前記間隙を一定に保持する間隙保持用柱を形成す
る工程と、 前記シール剤を、前記間隙保持用柱の間に位置するよう
前記アレイ基板及び/又は前記対向基板に塗布する工程
と、 前記アレイ基板及び前記対向基板を前記間隙を隔てて前
記シール剤により接着する工程と、 前記アレイ基板及び前記対向基板を所定形状にブレイク
形成する工程とを具備する事を特徴とする液晶表示装置
の製造方法。6. An array substrate which is arranged in a matrix and has a pixel electrode driven by a thin film transistor to which signals are inputted from a scanning line and a signal line, and has an opposing electrode and is separated by a predetermined gap from the array substrate An opposing substrate, a sealing agent surrounding the gap around the pixel electrode, a liquid crystal composition sealed in a region surrounded by the sealing agent, and an end portion formed on the opposing substrate. A liquid crystal display device having a light-shielding film and a color filter layer made of a coloring material arranged so as not to extend outside the region where the sealant is arranged, wherein the scanning line and the signal are formed on a first insulating substrate. Forming the matrix-shaped pixel electrode driven by the thin-film transistor to which a signal is input from a line to form the array substrate; and forming a light-shielding film on a second insulating substrate. Forming the color filter layer and the light-shielding film made of a color material and the color filter layer made of a color material and the counter electrode to form the counter substrate; and forming the sealant on the array substrate and / or the counter substrate. Forming gap holding columns for keeping the gap between the array substrate and the counter substrate constant on both sides of the arrangement region; and forming the array so that the sealant is located between the gap holding columns. A step of applying to the substrate and / or the counter substrate; a step of bonding the array substrate and the counter substrate with the sealant with the gap therebetween; and a step of forming the array substrate and the counter substrate in a predetermined shape. A method for manufacturing a liquid crystal display device, comprising:
Priority Applications (1)
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JP9280336A JPH11119230A (en) | 1997-10-14 | 1997-10-14 | Liquid crystal display device and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9280336A JPH11119230A (en) | 1997-10-14 | 1997-10-14 | Liquid crystal display device and its production |
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Publication Number | Publication Date |
---|---|
JPH11119230A true JPH11119230A (en) | 1999-04-30 |
Family
ID=17623592
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9280336A Pending JPH11119230A (en) | 1997-10-14 | 1997-10-14 | Liquid crystal display device and its production |
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