JPH0333721A - Color liquid crystal display device - Google Patents
Color liquid crystal display deviceInfo
- Publication number
- JPH0333721A JPH0333721A JP2041655A JP4165590A JPH0333721A JP H0333721 A JPH0333721 A JP H0333721A JP 2041655 A JP2041655 A JP 2041655A JP 4165590 A JP4165590 A JP 4165590A JP H0333721 A JPH0333721 A JP H0333721A
- Authority
- JP
- Japan
- Prior art keywords
- color
- liquid crystal
- transparent
- insulating film
- substrates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000003086 colorant Substances 0.000 claims description 5
- 239000004988 Nematic liquid crystal Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 abstract 3
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 10
- 230000005684 electric field Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 210000002858 crystal cell Anatomy 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はツイストネマティック(TN)型表示方式を利
用したカラー液晶表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color liquid crystal display device using a twisted nematic (TN) type display system.
本発明は、カラーフィルタ部を偏光部を2分割して、カ
ラーフィルム部のみ透明基板と密接させることにより視
差の発生を防止すること、及びカラーフィルム部の作成
の簡易化高精度化を図ること、さらに、カラーフィルタ
部による電界強度への影響を防止することを目的とする
ものである。The present invention aims to prevent the occurrence of parallax by dividing the color filter part into two parts with the polarizing part and bringing only the color film part into close contact with the transparent substrate, and to simplify and increase the precision of the production of the color film part. Furthermore, the purpose is to prevent the influence of the color filter section on the electric field strength.
第1図は従来のTN型カラー液晶表示装置を示し、1は
液晶セルで、2枚の透明なガラス基板(2)(3)、こ
の基板内面に多数マトリクス状に配列された透明電極X
n Yn(nは正の整数)、液晶分子を一定方向に配
向させる液晶配向膜(4〉(5)、基板(2)(3)間
隙に封入された正の誘電異方性をもつネマティック液晶
(6)よりなり、液晶分子(6°〉(6°〉・・・は、
配向膜(4)(5)により90゜回転したツイストネマ
ティック構造を有している。(7〉は、カラー偏光素子
で、偏光部(8〉を2枚のアクリル樹脂等の透明ガラス
基板(9)(9)で挾持してなり透明ガラス基板(2〉
の表面に接着される。 (10)は、他方のガラス基板
(3)の表面に接着されるニュートラル偏光板でありそ
の偏光面は、カラー偏光素子(7)のそれと直角である
。カラー偏光素子〈7〉の偏光部(8)はポリビニルア
ルコール等の高分子材料を基材とし、これを一定方向に
延伸させた後、赤(R)、緑(G)、青(B)の各染料
を部分的に塗布し、透明電極Xnと同一ピッチのストラ
イプ状に着色して形成される。ポリビニルアルコールは
、上記延伸及び染色により偏光機能を付与される。Figure 1 shows a conventional TN type color liquid crystal display device, in which 1 is a liquid crystal cell, two transparent glass substrates (2) and (3), and a large number of transparent electrodes X arranged in a matrix on the inner surface of the substrate.
n Yn (n is a positive integer), liquid crystal alignment film that aligns liquid crystal molecules in a certain direction (4> (5), nematic liquid crystal with positive dielectric anisotropy sealed in the gap between substrates (2) and (3) (6), the liquid crystal molecules (6°〉(6°〉...) are
It has a twisted nematic structure rotated by 90 degrees by the alignment films (4) and (5). (7> is a color polarizing element, and the polarizing part (8>) is sandwiched between two transparent glass substrates (9) such as acrylic resin (9).
is adhered to the surface of (10) is a neutral polarizing plate adhered to the surface of the other glass substrate (3), and its polarization plane is perpendicular to that of the color polarizing element (7). The polarizing part (8) of the color polarizing element <7> uses a polymeric material such as polyvinyl alcohol as a base material, and after stretching it in a certain direction, it is divided into red (R), green (G), and blue (B). Each dye is applied partially and colored in stripes having the same pitch as the transparent electrodes Xn. Polyvinyl alcohol is given a polarizing function by the stretching and dyeing described above.
このような装置では、透明電極Xn Yn間に電界が
印加されると、液晶分子(6’ )(6’ )・・・は
電界方向に配向し、偏光板〈10〉を通過してきた直線
偏光は、液晶からは何ら影響を受けずそのまま出力され
、カラー偏光素子(7〉にて着色されて表示面側へ現れ
る。実際には、表示点は、極小であるから3g、色が合
成されて各種の色となって表示される。一方電界の印加
されない部分では、偏光板(10)からの直線偏光は、
90”回転した液晶分子(6’ )(6’ )・・・に
て回転され、カラー偏光素子(7〉を透
連通して、そのまま表示側へ出射され白色背景となる。In such a device, when an electric field is applied between transparent electrodes is output as is without any influence from the liquid crystal, and is colored by the color polarizing element (7) and appears on the display surface.Actually, since the display point is extremely small, 3g, the colors are synthesized. On the other hand, in the part where no electric field is applied, the linearly polarized light from the polarizing plate (10) is displayed as various colors.
The light is rotated by the liquid crystal molecules (6') (6') rotated by 90'', passes through the color polarizing element (7>), and is emitted as it is to the display side, forming a white background.
このようにしてカラー画像表示が可能であるが、透明電
極Xnとカラー偏光素子(7)の間に厚さ約1ffll
lのガラス基板(2〉が介在するため表示面に対し、斜
め方向から見ると表示される色に隣接する色が重なって
所望の色が得られない等視差による問題が発生する。Although it is possible to display a color image in this way, a thickness of approximately 1 ffll is formed between the transparent electrode Xn and the color polarizing element (7).
Due to the presence of the glass substrate 1 (2), a problem occurs due to isoparallax where the displayed color overlaps with the adjacent color when viewed from an oblique direction with respect to the display surface, making it impossible to obtain the desired color.
この様な問題を解決するため、カラー偏光素子(7)を
ガラス基板(2〉内面に位置させることも提案されてい
るが、偏光素子(7〉がポリビニルアルコール等高分子
膜を延伸させ、これを染色して形成するものであるため
、基板(2)内面に被着した場合、歪を生じて透明電極
Xnとめ相対位置がずれるという欠点があった。またカ
ラー偏光素子(7〉の染料は、基材となる高分子材料に
染色される材料でなければならず、その数も限られてい
るという問題がある。In order to solve this problem, it has been proposed to place a color polarizing element (7) on the inner surface of the glass substrate (2). Since it is formed by dyeing the color polarizing element (7), it has the disadvantage that if it is applied to the inner surface of the substrate (2), it will cause distortion and the relative position of the transparent electrode Xn will shift. However, there is a problem in that the material must be dyed into the polymeric material that serves as the base material, and the number of materials is limited.
本発明は、このような欠点を解消するもので以下第2図
に基いて一実施例を詳述する。 (11)は透明ガラス
基板(2)表面に印刷により形成されたカラーフィルタ
で、赤(R)、緑(G)、青(B)の3原色が交互にス
トライブ状に配設されている。ここに使用される色素は
、ガラス基板(2〉に印刷されるものであるから、周知
の油性のインキが使用でき、その濃淡も簡単に制御でき
る。(12〉は、このカラーフィルタ(11〉上にスピ
ンナー或いはディッピングにより厚さ数100人に形成
されたアクリル樹脂の如き透明な絶縁膜で、カラーフィ
ルタ(11)の保護及び電極の絶縁を兼ねる。Xnは、
この絶縁膜(12〉上にカラーフィルタ(11〉の各色
R1G、Bに相対して設けられた酸化インジウムIn、
ot等の透明電極である。この透明電極XnはIn*O
*を絶縁膜(12〉上に低温スパッタリングにより全面
被着した後、エツチング処理を施してストライブパター
ンに形成される。Ynは透明ガラス基板(3〉の内面に
上記透明電極Xnと交差するよう形成された透明電極で
、この透明電極Xnとでマトリクス電極を構成している
。 (13)(14>は、透明電極Xn Ynを被覆
する液晶配向膜で、ポリイミド等有機樹脂をスピンナー
全布により形成した後、ラビング処理される。(6〉は
基板(2)(3)間々隙に封入された正の誘電異方性を
もつネマティック液晶で、黒色の2色性染料を混入する
こともできる。 (15)は、エポキシ等有機樹脂より
なる約10ja+厚のスペーサである。 (10)(1
6)は、かかる構成の液晶セルを挾持する一対のニュー
トラル偏光板で、各偏光面は平行である。The present invention solves these drawbacks, and one embodiment of the present invention will be described in detail below with reference to FIG. 2. (11) is a color filter formed by printing on the surface of the transparent glass substrate (2), and the three primary colors of red (R), green (G), and blue (B) are arranged alternately in stripes. . Since the pigment used here is printed on the glass substrate (2>), a well-known oil-based ink can be used, and its shading can be easily controlled. (12> is the color filter (11) A transparent insulating film such as acrylic resin formed on the top by a spinner or dipping to a thickness of several hundred layers serves to protect the color filter (11) and insulate the electrodes.
On this insulating film (12), indium oxide In,
It is a transparent electrode such as ot. This transparent electrode Xn is In*O
* is deposited on the entire surface of the insulating film (12) by low-temperature sputtering, and then etched to form a stripe pattern. The formed transparent electrode constitutes a matrix electrode with this transparent electrode Xn. (13) (14> is a liquid crystal alignment film that covers the transparent electrode Xn Yn, and organic resin such as polyimide is coated with a spinner cloth. After forming, it is rubbed. (6) is a nematic liquid crystal with positive dielectric anisotropy sealed in the gap between the substrates (2) and (3), and a black dichroic dye can also be mixed therein. (15) is a spacer made of organic resin such as epoxy and has a thickness of about 10 ja+. (10) (1
6) is a pair of neutral polarizing plates which sandwich the liquid crystal cell having such a configuration, and each polarization plane is parallel to each other.
これらの偏光板(10)(16)は、それぞれガラス基
板(2)(3)の表面に接着されている。These polarizing plates (10) and (16) are adhered to the surfaces of glass substrates (2) and (3), respectively.
その動作につき説明すると、電界印加部分は、液晶分子
(6’ )(6’ )が電界方向に配列するから偏光板
〈10〉を経て直線偏光とされた光は、そのまま液晶(
6〉を通過し、カラーフィルタ(11〉にて着色され偏
光板(16)を経て表示側へ出射する。したがって赤、
緑、青のそれぞれの原色或はこれらの合成色にてカラー
画像が形成される。一方電界非印加部分では、偏光板り
10〉からの直線偏光は、液晶分子(6’)(6’)・
・・にて、90°回転されるため、偏光板(16〉へ到
達した光の偏光方向は、偏光板(16)の偏光面と直交
するので、偏光は遮断される。したがって、表示面は黒
色となる。この場合、液晶(6〉に黒色の2色性染料を
混入させると、黒色背景は一層濃くなる。このようにし
て黒色背景にカラー画像表示が行なわれる。To explain its operation, in the electric field application part, the liquid crystal molecules (6') (6') are aligned in the direction of the electric field, so the light that has passed through the polarizing plate <10> and becomes linearly polarized light remains as it is in the liquid crystal (
6>, is colored by a color filter (11>), and exits to the display side via a polarizing plate (16).Therefore, red,
A color image is formed using the primary colors of green and blue or their composite color. On the other hand, in the part where no electric field is applied, the linearly polarized light from the polarizing plate 10 is divided into liquid crystal molecules (6') (6'),
Since the light is rotated by 90 degrees at The color becomes black. In this case, when a black dichroic dye is mixed into the liquid crystal (6), the black background becomes even darker. In this way, a color image is displayed on the black background.
以上のように本発明によれば、カラーフィルタと透明電
極の間には僅か数100人の絶縁膜が介在するのみであ
るから、両者間に視差が生じる惧れはない、また相対す
る透明電極間には液晶以外の物質が存在することはない
から、印加電界の全てが液晶に加わり、液晶駆動の急峻
な閾値電圧は保持される。さらにカラーフィルタの形成
は、ガラス基板内面に油性カラーインキを塗布する従来
周知の印刷技術がそのまま適用できるため、簡単な技術
で高精度のカラーパターンが形成できる。As described above, according to the present invention, only several hundred insulating films are interposed between the color filter and the transparent electrode, so there is no risk of parallax occurring between the two, and the transparent electrode facing Since there is no substance other than the liquid crystal between them, the entire applied electric field is applied to the liquid crystal, and the steep threshold voltage for driving the liquid crystal is maintained. Furthermore, the color filter can be formed using a conventionally well-known printing technique that applies oil-based color ink to the inner surface of a glass substrate, so a highly accurate color pattern can be formed with a simple technique.
第1図は、従来例断面図、第2図は本発明一実施例断面
図である。
(1〉・・・液晶セル、(2)(3)・・・透明ガラス
基板、(4>(5)・・・液晶配向膜、〈6〉・・・液
晶、(7)・・・カラー偏光素子、(10)(16)・
・・ニュートラル偏光板、(11)・・・カラーフィル
タ、(Xn)(Yn)・・・透明電極。FIG. 1 is a sectional view of a conventional example, and FIG. 2 is a sectional view of an embodiment of the present invention. (1>...Liquid crystal cell, (2)(3)...Transparent glass substrate, (4>(5)...Liquid crystal alignment film, <6>...Liquid crystal, (7)...Color Polarizing element, (10) (16)・
... Neutral polarizing plate, (11) ... Color filter, (Xn) (Yn) ... Transparent electrode.
Claims (1)
の基板内面に複数の色にて所定パターンに印刷形成され
たカラーフィルタ、該カラーフィルタ上に所定パターン
に対応して設けられた透明電極、上記他方の基板内面に
設けられた他の透明電極、上記両透明電極を被覆して形
成された液晶配向膜、上記両基板間隙に封入された正の
誘電異方性をもつネマティック液晶、上記両基板外側に
配置された一対の偏光板を備えてなるカラー液晶表示装
置。1. A pair of transparent substrates arranged in parallel, a color filter printed in a predetermined pattern in multiple colors on the inner surface of one of the substrates, and a transparent substrate provided on the color filter in a predetermined pattern. an electrode, another transparent electrode provided on the inner surface of the other substrate, a liquid crystal alignment film formed by covering both the transparent electrodes, a nematic liquid crystal with positive dielectric anisotropy sealed in the gap between the two substrates, A color liquid crystal display device comprising a pair of polarizing plates arranged on the outside of both of the substrates.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2041655A JPH0333721A (en) | 1990-02-22 | 1990-02-22 | Color liquid crystal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2041655A JPH0333721A (en) | 1990-02-22 | 1990-02-22 | Color liquid crystal display device |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8110629A Division JP2675543B2 (en) | 1996-04-08 | 1996-04-08 | Color liquid crystal display |
JP8110628A Division JPH08278494A (en) | 1996-04-08 | 1996-04-08 | Color liquid crystal display device and its production |
JP8110627A Division JP2675542B2 (en) | 1996-04-08 | 1996-04-08 | Color liquid crystal display |
JP8110626A Division JP2675541B2 (en) | 1996-04-08 | 1996-04-08 | Color liquid crystal display |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0333721A true JPH0333721A (en) | 1991-02-14 |
Family
ID=12614385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2041655A Pending JPH0333721A (en) | 1990-02-22 | 1990-02-22 | Color liquid crystal display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0333721A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5409264A (en) * | 1992-01-18 | 1995-04-25 | Mazda Motor Corporation | Deformable under body including deformable frame members for protecting a fuel vapor canister |
JPH08278494A (en) * | 1996-04-08 | 1996-10-22 | Sanyo Electric Co Ltd | Color liquid crystal display device and its production |
JP2006027595A (en) * | 2004-06-22 | 2006-02-02 | Ti Group Automotive Systems Llc | Automobile fuel device |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5409264A (en) * | 1992-01-18 | 1995-04-25 | Mazda Motor Corporation | Deformable under body including deformable frame members for protecting a fuel vapor canister |
JPH08278494A (en) * | 1996-04-08 | 1996-10-22 | Sanyo Electric Co Ltd | Color liquid crystal display device and its production |
JP2006027595A (en) * | 2004-06-22 | 2006-02-02 | Ti Group Automotive Systems Llc | Automobile fuel device |
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