JPH11248930A - Color filter substrate and manufacture thereof, and liquid crystal display element using same color filter substrate - Google Patents

Color filter substrate and manufacture thereof, and liquid crystal display element using same color filter substrate

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Publication number
JPH11248930A
JPH11248930A JP5536698A JP5536698A JPH11248930A JP H11248930 A JPH11248930 A JP H11248930A JP 5536698 A JP5536698 A JP 5536698A JP 5536698 A JP5536698 A JP 5536698A JP H11248930 A JPH11248930 A JP H11248930A
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Japan
Prior art keywords
color filter
filter substrate
liquid crystal
formed
center
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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
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JP5536698A
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Japanese (ja)
Inventor
Takashi Goto
Satoru Shinsenji
任 後藤
哲 秦泉寺
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Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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Application filed by Matsushita Electric Ind Co Ltd, 松下電器産業株式会社 filed Critical Matsushita Electric Ind Co Ltd
Priority to JP5536698A priority Critical patent/JPH11248930A/en
Publication of JPH11248930A publication Critical patent/JPH11248930A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide the liquid crystal display element which has high display uniformity by the method which uses a projection formed on a substrate of the liquid crystal display element for gap control between substrates.
SOLUTION: A color filter substrate 1 is used which has a color filter layer 2 formed of colored layers and a light shield layer 3 of specific width and a color filter substrate and further has the projection 5 formed of resin on the light shield layer 3 to specific size so that the center 5a of the projection 5 is not aligned with the width-directional center 3a of the light shield layer 3. When the surface of the color filter substrate where an alignment layer is formed is rubbed, the surface is rubbed in the direction from the center of the projection to the center of the light shield layer.
COPYRIGHT: (C)1999,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明はカラーフィルター基板、そのカラーフィルター基板の製造方法及びそのカラーフィルター基板を用いた液晶表示素子に関するものであり、映像表示機器,パーソナルコンピュータやワードプロセッサなどのOA機器、産業分野のハンディ端末機器,携帯型情報通信機器などに用いられるものである。 The present invention is a color filter substrate [Field of the Invention relates to a liquid crystal display device using the manufacturing method and color filter substrate of the color filter substrate, an image display equipment, OA equipment such as personal computers and word processors, industries handy terminal device, and it is used like a portable information communication equipment.

【0002】 [0002]

【従来の技術】現在、フラットパネルディスプレイとして、液晶・プラズマ・ELディスプレイが実用化され、 At present, as a flat panel display, liquid crystal, plasma, EL display is commercialized,
その用途も幅広いものとなってきている。 Its use has also been a wide range of things.

【0003】例えば、液晶表示素子はCRTに比べて、 [0003] For example, a liquid crystal display element is compared to the CRT,
画面サイズ,画素数において劣っており、その反面、重量や体積において携帯性に優れた製品分野に位置することができた。 Screen size, and inferior in the number of pixels, on the other hand, could be located in the superior product areas portability in weight and volume. 現在ではノート型パソコンやワープロで用いられている液晶表示素子として、10〜12インチサイズ程度で640×480ドット、又は600×800 As the liquid crystal display device is now being used in notebook personal computers, word processors, 640 × 480 dots in the order of 10 to 12 inches size, or 600 × 800
ドットの画素数が用意されており、CRTの画素数には劣るがディスプレイとして優れた表示を示すことができる。 The number of pixels of the dot are prepared, inferior to CRT number of pixels may exhibit a display with excellent as a display.

【0004】図6はこのような従来例の単純マトリクス型のカラーSTN液晶表示素子の構成を示す断面図である。 [0004] FIG. 6 is a sectional view showing the configuration of a color STN liquid crystal display device of the simple matrix type of the conventional example.

【0005】図6において、電極基板10の上に表示電極6が順に形成されている。 [0005] In FIG 6, the display electrodes 6 on the electrode substrate 10 are formed in this order. 対向するカラーフィルター基板1上にカラーフィルタ層2,遮光層3、その上に平滑性を得るために有機物から成る透明樹脂層4を設け、 The color filter layer 2 on the color filter substrate 1 facing, light-shielding layer 3, the transparent resin layer 4 made of organic material in order to obtain the smoothness thereon provided,
さらに表示電極6を順に形成して、これら表示電極6上に配向膜層7が構成される。 Further to form a display electrode 6 in this order, the orientation layer 7 is formed on these display electrodes 6. このように構成した電極基板はスペーサ13を介し、少なくとも一方の基板の周辺に印刷されたシール材12で電極基板間のギャップを一定に保つように接着されており、そのギャップ中に液晶11を封入してカラー液晶表示素子を構成している。 The electrode substrate thus constructed through the spacer 13 is adhered to the gap between the electrode substrates with a sealing material 12 which is printed on the periphery of at least one of the substrates so as to maintain constant, the liquid crystal 11 in the gap encapsulated to constitute a color liquid crystal display device.

【0006】今後、STNでは12型から17型の画面サイズが考えられており、表示容量もSVGAからXG [0006] In the future, it is believed the screen size of 17-inch from STN in 12-inch, display capacity XG from SVGA
A,SXGAなどもCRT代替モニターとして注目され、その表示品位も従来に比べ高いレベルが要求されてきており、その製造方法もいろいろ検討がなされている。 A, is attracting attention as CRT alternatively also monitored such SXGA, its display quality has also been required to have high levels compared with the prior art it has been variously studied also its manufacturing method.

【0007】 [0007]

【発明が解決しようとする課題】しかしながら、従来のようなスペーサ13を介し基板(1と10)間のギャップが保たれているような液晶表示素子では、スペーサ1 [SUMMARY OF THE INVENTION However, in the liquid crystal display device, such as a gap between the substrate via a spacer 13 as in the prior art (1 and 10) is maintained, the spacer 1
3周辺の配向状態がスペーサの無い部分と異なるために、黒表示をする際にスペーサ13周辺で光り抜け現象を生じ表示品位の指標となるコントラスト比を低下させる要因となっていた。 To 3 near alignment state different from the portion having no spacer, which is a factor of lowering the contrast ratio which is an indicator of the display quality caused the light leakage phenomenon in peripheral spacer 13 at the time of the black display. この問題を解決する手段として、 As a means for solving this problem,
例えば、図7の特開平8−292426号公報に開示されている液晶表示素子の構成を示す断面図のようにスペーサ13の代わりに遮光層3上に突起5を形成し、光漏れを低減するという液晶表示素子が提案されている。 For example, to form a projection 5 on the light-shielding layer 3 in place of the spacers 13 as in the cross-sectional view showing a structure of a liquid crystal display device disclosed in JP-A-8-292426 discloses in Fig. 7, to reduce the light leakage the liquid crystal display element has been proposed that.

【0008】しかしながら、遮光層3上に突起5を形成した場合でも、突起周辺に於いて配向異常状態が存在し、その異常配向領域14は液晶の配向状態を決定するラビング方向に対して依存性を持つ。 However, even in case of forming the projections 5 on the light shielding layer 3, the orientation abnormal state exists at around the projection, the abnormal alignment region 14 is dependent with respect to the rubbing direction which determines the orientation of the liquid crystal have. よって、中間調と呼ばれる電圧印加の中途状態において突起周辺のラビング出口方向に生じる異常配向領域14が画素部分まで広がり、コントラスト比を低下させるという問題があった。 Therefore, the abnormal alignment region 14 resulting in the middle state of voltage application, called halftone rubbing exit direction around the protrusion spread to the pixel portion, there is a problem of lowering the contrast ratio.

【0009】本発明は、以上のような問題点を解決し、 [0009] The present invention is to solve the problems as described above,
液晶表示素子の基板間のギャップ制御に基板上に形成した突起を用いる方法に於いて、表示均一性の高い液晶表示素子を提供するカラーフィルター基板、そのカラーフィルター基板の製造方法及びそのカラーフィルター基板を用いる液晶表示素子の提供を目的とするものである。 In the method of using the projections formed on the substrate gap control between the substrates of the liquid crystal display device, a color filter substrate to provide a high display uniformity liquid crystal display device, manufacturing method and color filter substrate of the color filter substrate it is an object to provide a liquid crystal display device used.

【0010】 [0010]

【課題を解決するための手段】本発明は上記目的を達成するために、複数の着色層からなるカラーフィルター層と所定の幅からなる遮光層が形成されたカラーフィルター基板上の遮光層上に樹脂からなる所定の大きさの突起が形成され、且つ前記突起の中心は前記遮光層の幅方向の中心と一致しないことを特徴とするカラーフィルター基板を用いる。 SUMMARY OF THE INVENTION The present invention, in order to achieve the above object, the plurality of colored layers color filter layer and the color filter substrate light shielding layer is formed having a predetermined width of the light shielding layer made of predetermined size of projections made of resin is formed, and the center of the projection using the color filter substrate, wherein it does not coincide with the center in the width direction of the light shielding layer.

【0011】また、配向膜層が形成された上記カラーフィルター基板表面をラビングする製造方法において、突起の中心から遮光層の中心方向へラビングする。 [0011] In the method of rubbing the color filter substrate surface alignment layer is formed, rubbing from the center of the protrusion toward the center of the light-shielding layer.

【0012】また、前記製造方法でラビングされた電極基板を具備した液晶表示素子を形成するものである。 [0012] and forms a liquid crystal display device provided with the electrode substrate that has been rubbed with the manufacturing process.

【0013】 [0013]

【発明の実施の形態】以下、本発明の各実施の形態について、図1から図6を用いて説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS.

【0014】(実施の形態1)図1は本発明の実施の形態1におけるカラーフィルター基板の平面図(a)及び断面図(b)、図2は本発明の実施の形態1におけるラビング方法を示す工程図、図3は本発明の実施の形態1 [0014] plan view of a color filter substrate in Figure 1 a first embodiment of the present invention (Embodiment 1) (a) and a sectional view (b), the rubbing method according to the first embodiment of Figure 2 the invention process diagram, the embodiment of Figure 3 the present invention 1 showing
により作成された液晶表示素子の断面図を示すものである。 It shows a cross-sectional view of a liquid crystal display device created by.

【0015】まず、カラーフィルター基板1上にカラーフィルター層2、額縁状の遮光層3及びそれらを被覆する透明樹脂層4を形成し、さらに表示電極6を形成する。 [0015] First, the color filter layer 2 on the color filter substrate 1, to form a frame-like light-shielding layer 3 and the transparent resin layer 4 covering them, further forming a display electrode 6. さらに遮光層3上に透明樹脂からなる突起5を所定のパターンに形成し、その位置は遮光層3の幅方向の中心と一致しないように配置した。 Furthermore the projections 5 made of a transparent resin on the light-shielding layer 3 is formed in a predetermined pattern, its position is arranged so as not to coincide with the center in the width direction of the light shielding layer 3. その際、突起5はネガタイプの感光性透明樹脂を用いフォトリソ法により形成し、一例として遮光層3の幅25μmに対し突起5は1 At that time, the projection 5 is formed by photolithography using a photosensitive transparent resin negative type, the projections 5 with respect to the width 25μm of the light-shielding layer 3 as an example 1
0μm角、高さ5μmとし、突起5の中心5aを遮光層3の幅方向の中心3aに対し5μmずらした位置に形成した。 0μm angle, and height 5 [mu] m, was formed at a position shifted 5 [mu] m to the width direction of the center 3a of the light shielding layer 3 and the center 5a of the projection 5.

【0016】次に上記カラーフィルター基板1上に液晶分子の配向を制御する配向膜層7を形成し、図2に示すようにラビングローラ8に貼り付けたレーヨン製のラビング布9(吉川加工YA−20R)を用いて、突起の中心方向から遮光層の中心方向へとラビングを行った。 [0016] Then the color filter alignment layer 7 for controlling the orientation of liquid crystal molecules is formed on a substrate 1, made of rayon rubbing cloth 9 adhered to the rubbing roller 8 as shown in FIG. 2 (Yoshikawa processing YA -20R) was used to perform rubbing and toward the center of the light-shielding layer from the center of the projection.

【0017】一方、電極基板10には、対向する表示電極6,配向膜層7を形成し、所定のラビング処理を行った。 Meanwhile, the electrode substrate 10, display electrode 6 facing, to form an alignment film layer 7, was given rubbing treatment. ラビング角度は、一例として液晶のツイスト角が2 Rubbing angle is the twist angle of the liquid crystal as an example 2
40゜となるように設定した。 It was set to be 40 degrees. 次に、ギャップ制御用のガラスファイバー(図中記載省略)を混入したシール材12を形成し、カラーフィルター基板1と電極基板10 Next, a sealing material 12 mixed with glass fibers (in the drawing, wherein shown) for gap control, the color filter substrate 1 and the electrode substrate 10
を貼り合わせ、シール材12を硬化して、液晶パネルを作成した。 The bonding, and curing the sealing material 12 to prepare a liquid crystal panel.

【0018】最後に、液晶パネルに液晶11を注入して液晶表示素子を作成した。 [0018] Finally, create a liquid crystal display device by injecting a liquid crystal 11 in the liquid crystal panel.

【0019】こうして作成した液晶パネルに電圧を印加して中間調状態を観察したところ、突起5周辺のラビング出口側では配向異常領域14が見られるものの、位置をずらした効果により遮光層3内に収まっており、高コントラストの液晶表示素子が形成されていることが確認できた。 [0019] Thus Observation of the halftone state by applying a voltage to the liquid crystal panel created, although irregular alignment region 14 seen in rubbing outlet side near the protrusion 5, the light-shielding layer 3 by effect of shifting the position subsided and, it was confirmed that the liquid crystal display device of high contrast is formed.

【0020】(実施の形態2)図4は本発明の実施の形態2におけるラビング方法を示す工程図、図5は本発明の実施の形態2により作成された液晶表示素子の断面図を示すものである。 [0020] (Embodiment 2) FIG. 4 is a process diagram illustrating a rubbing method in a second embodiment of the present invention, Figure 5 shows a cross-sectional view of a liquid crystal display device created by the second embodiment of the present invention it is.

【0021】まず、図4(a)に示すようにラーフィルター基板1上にカラーフィルター層2,遮光層3及びそれらを被覆する透明樹脂層4を形成し、さらに表示電極6,配向膜層7を形成した。 Firstly, FIG. 4 color filter layer 2 on color filter substrate 1 (a), the light shielding layer 3 and to form a transparent resin layer 4 covering them, further display electrodes 6, an alignment film layer 7 It was formed.

【0022】次に、図4(b)に示すようにカラーフィルター基板1の遮光層3上に透明樹脂からなる突起5を所定のパターンに形成し、その位置は遮光層3の幅方向の中心と一致しないように配置した。 Next, the protrusion 5 made of a transparent resin on the light-shielding layer 3 of the color filter substrate 1 as shown in FIG. 4 (b) is formed in a predetermined pattern, the position the center of the width direction of the light shielding layer 3 It was arranged so as not to coincide with. その際、突起5はネガタイプの感光性透明樹脂を用いフォトリソ法により形成し、一例として遮光層の幅25μmに対し突起5は10μm角、高さ5μmとし、突起の中心を遮光層の幅方向の中心に対し5μmずらした位置に形成した。 At that time, the projection 5 is formed by photolithography using a photosensitive transparent resin negative type, the projections 5 is 10μm square to width 25μm of the light-shielding layer as an example, a height 5 [mu] m, the width direction of the light-shielding layer the centers of projections formed at a position shifted 5μm relative to the center.

【0023】最後に、カラーフィルター基板1上の配向膜層7の表面を、ラビングローラ8に貼り付けたレーヨン製のラビング布9(吉川加工YAー20R)を用いて突起の中心方向から遮光層の中心方向へラビングを行った。 [0023] Finally, the surface of the alignment film layer 7 on the color filter substrate 1, the light-shielding layer from the center of the projection with a rayon rubbing cloth 9 adhered to the rubbing roller 8 (Yoshikawa processing YA over 20R) It was subjected to a rubbing to the central direction.

【0024】一方、図5に示すように電極基板10には、対向する表示電極6,配向膜層7を形成し、所定のラビング処理を行った。 On the other hand, the electrode substrate 10 as shown in FIG. 5, display electrodes 6 facing, to form an alignment film layer 7, was given rubbing treatment. ラビング角度は、一例として液晶のツイスト角が240゜となるように設定した。 Rubbing angle is the twist angle of the liquid crystal was set to be 240 degrees as an example. 次に、ギャップ制御用のガラスファイバー(図中記載省略)を混入したシール材12を形成し、カラーフィルター基板1と電極基板10を貼り合わせ、シール材12を硬化して、液晶パネルを作成した。 Next, a sealing material 12 mixed with glass fibers (in the drawing, wherein shown) for gap control, bonded to the color filter substrate 1 and the electrode substrate 10, and curing the sealing material 12 to prepare a liquid crystal panel .

【0025】最後に、液晶パネルに液晶11を注入して液晶表示素子を作成した。 [0025] Finally, create a liquid crystal display device by injecting a liquid crystal 11 in the liquid crystal panel. こうして作成した液晶パネルに電圧を印加して中間調状態を観察したところ突起周辺のラビング出口側では配向異常領域14が見られるものの、位置をずらした効果により遮光層3内に収まっており、高コントラストの液晶表示素子が形成されていることが確認できた。 Thus although irregular alignment region 14 seen in rubbing outlet side near the protrusion was observed halftone state by applying a voltage to the liquid crystal panel created, which falls within the light-shielding layer 3 by effect of shifting the position, high it was confirmed that the liquid crystal display element of contrast is formed.

【0026】なお本実施の形態において、カラーフィルターの工法について述べていないが、本発明の構成を満足するものであれば、工法については問わない。 [0026] Note that in this embodiment, although not described method of the color filter, as long as it satisfies the configuration of the present invention, does not matter for method.

【0027】また、本実施の形態において、ラビング角度が240°であり、STNモードについて述べているが、ラビング角度が90°であるTNモードでも同様の効果が得られる。 Further, in this embodiment, a rubbing angle of 240 °, but describes STN mode, the same effect can be obtained in the TN mode rubbing angle is 90 °.

【0028】 [0028]

【発明の効果】以上説明したように本発明は、液晶表示素子の基板間のギャップ制御に基板上に形成した突起を用いる方法に於いて、遮光層上に形成する突起の位置を遮光層の中心よりずらし、かつラビング方向を特定することで突起周辺に生じる異常配向の影響を少なくすることができるので、表示均一性の高い液晶表示素子を提供できる。 The present invention described above, according to the present invention is, in the method using the projections formed on the substrate gap control between the substrates of the liquid crystal display device, the light shielding layer positions of the protrusions formed on the light-shielding layer shifting from the center, and since the rubbing direction it is possible to reduce the influence of abnormal orientation occurs around projections by identifying, it can provide a high display uniformity liquid crystal display device.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施の形態1におけるカラーフィルター基板の平面図(a)と断面図(b) Figure 1 is a plan view of a color filter substrate in the first embodiment of the present invention (a) and a cross-sectional view (b)

【図2】本発明の実施の形態1におけるラビング方法を示す工程図 Process diagram showing a rubbing method according to the first embodiment of the invention; FIG

【図3】本発明の実施の形態1における液晶表示素子の断面図 Cross-sectional view of a liquid crystal display device in the first embodiment of the present invention; FIG

【図4】本発明の実施の形態2におけるラビング方法を示す工程図 Process diagram showing a rubbing method in a second embodiment of the present invention; FIG

【図5】本発明の実施の形態2における液晶表示素子の断面図 Cross-sectional view of a liquid crystal display device in the second embodiment of the present invention; FIG

【図6】従来の液晶表示素子の構成を示す断面図 6 is a sectional view showing a structure of a conventional liquid crystal display device

【図7】従来の液晶表示素子の他の構成を示す断面図 7 is a cross-sectional view showing another structure of a conventional liquid crystal display device

【符号の説明】 DESCRIPTION OF SYMBOLS

1 カラーフィルター基板 2 カラーフィルター層 3 遮光層 4 透明樹脂層 5 突起 6 表示電極 7 配向膜層 8 ラビングローラ 9 ラビング布 10 電極基板 11 液晶 12 シール材 13 スペーサ 14 異常配向領域 1 the color filter substrate 2 color filter layer light-shield layer 4 transparent resin layer 5 protruding 6 display electrode 7 alignment layer 8 rubbing roller 9 rubbing cloth 10 electrode substrate 11 liquid crystal 12 sealant 13 spacer 14 abnormal alignment region

Claims (4)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 複数の着色層からなるカラーフィルター層と所定の幅からなる複数の遮光層が形成されたカラーフィルター基板上の遮光層上に、樹脂からなる所定の大きさの複数の突起が形成され、且つ前記突起の中心は前記遮光層の幅方向の中心と一致しないことを特徴とするカラーフィルター基板。 To 1. A plurality of consisting coloring layer color filter layer and a plurality of light shielding layers collar is formed filter substrate light shielding layer having a predetermined width, a plurality of projections of predetermined size formed of a resin It is formed, and the center of the projection color filter substrate characterized in that it does not coincide with the center in the width direction of the light shielding layer.
  2. 【請求項2】 配向膜層が形成された請求項1記載のカラーフィルター基板表面をラビングする製造方法において、突起の中心から遮光層の中心方向へラビングすることを特徴とするカラーフィルター基板の製造方法。 2. A manufacturing method of rubbing a color filter substrate surface of the alignment film layer is formed according to claim 1, production of a color filter substrate, which comprises rubbing from the center of the protrusion toward the center of the light shielding layer Method.
  3. 【請求項3】 請求項2記載の製造方法により作成されたカラーフィルター基板を具備することを特徴とする液晶表示素子。 3. A liquid crystal display element characterized by comprising a color filter substrate manufactured by the manufacturing method according to claim 2, wherein.
  4. 【請求項4】 突起の幅方向の大きさが遮光層の幅よりも小さいことを特徴とする請求項1記載のカラーフィルター基板。 4. A color filter substrate according to claim 1, wherein the size of the width direction of the projection is equal to or smaller than the width of the light shielding layer.
JP5536698A 1998-03-06 1998-03-06 Color filter substrate and manufacture thereof, and liquid crystal display element using same color filter substrate Pending JPH11248930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5536698A JPH11248930A (en) 1998-03-06 1998-03-06 Color filter substrate and manufacture thereof, and liquid crystal display element using same color filter substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5536698A JPH11248930A (en) 1998-03-06 1998-03-06 Color filter substrate and manufacture thereof, and liquid crystal display element using same color filter substrate

Publications (1)

Publication Number Publication Date
JPH11248930A true JPH11248930A (en) 1999-09-17

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Application Number Title Priority Date Filing Date
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Country Link
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