JPH083588B2 - Color display liquid crystal display - Google Patents
Color display liquid crystal displayInfo
- Publication number
- JPH083588B2 JPH083588B2 JP62060211A JP6021187A JPH083588B2 JP H083588 B2 JPH083588 B2 JP H083588B2 JP 62060211 A JP62060211 A JP 62060211A JP 6021187 A JP6021187 A JP 6021187A JP H083588 B2 JPH083588 B2 JP H083588B2
- Authority
- JP
- Japan
- Prior art keywords
- color
- liquid crystal
- pattern
- display
- crystal display
- 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.)
- Expired - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 25
- 239000000758 substrate Substances 0.000 claims description 20
- 239000003086 colorant Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/52—RGB geometrical arrangements
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は液晶表示素子内にカラーフイルタを有するカ
ラー表示液晶表示装置に係わり、特にカラーフイルタ形
成電極の構成に関するものである。The present invention relates to a color display liquid crystal display device having a color filter in a liquid crystal display element, and more particularly to the structure of a color filter forming electrode.
第５図はこの種のカラー表示液晶表示装置の一例を示
す図であり、同図（ａ）は要部平面図、同図（ｂ）は同
図（ａ）のＢ−Ｂ′線の断面図、同図（ｃ）は同図
（ａ）のＣ−Ｃ′線の断面図である。同図において、透
光性ガラス板からなる上基板１と下基板２との対向面上
には、透明導電膜からなる複数の上電極３および下電極
４がそれぞれ帯状に互いに直交して被着形成され、かつ
これらの上電極３および下電極４の形成面上には表面に
ラビング処理を施した液晶配向膜５が形成され、さらに
下電極４上には、例えば赤，緑，青の３色のフイルタ6
R,6G,6Bが順次繰り返し形成配置されており、そして、
これらの上基板１と下基板２との間は所定距離離間して
その周辺部がスペーサを含有したシール材７で封着され
て外囲器を形成し、この外囲器の内部にTN（Twisted Ne
matic）液晶８が封入されて液晶表示素子９が構成され
ている。また、この液晶表示素子９の外面、つまり上基
板１および下基板２の外面には互いに偏光軸もしくは吸
収軸を平行させて上偏光板10および下偏光板11がそれぞ
れ接着配置されてカラー表示液晶表示装置が構成されて
いる。FIG. 5 is a diagram showing an example of this type of color display liquid crystal display device. FIG. 5 (a) is a plan view of relevant parts, and FIG. 5 (b) is a cross section taken along line BB 'in FIG. 5 (a). FIG. 11C is a sectional view taken along the line CC ′ of FIG. In the figure, a plurality of upper electrodes 3 and lower electrodes 4 made of a transparent conductive film are respectively applied in a strip shape on the opposing surfaces of the upper substrate 1 and the lower substrate 2 made of a transparent glass plate so as to be orthogonal to each other. A liquid crystal alignment film 5 is formed on the surface on which the upper electrode 3 and the lower electrode 4 are formed, and the surface of the liquid crystal alignment film 5 is rubbed. Further, on the lower electrode 4, for example, red, green, and blue 3 films are formed. Color filters 6
R, 6G, 6B are sequentially and repeatedly formed and arranged, and
The upper substrate 1 and the lower substrate 2 are separated from each other by a predetermined distance, and their peripheral portions are sealed with a seal material 7 containing a spacer to form an envelope, and TN ( Twisted Ne
A liquid crystal display element 9 is configured by enclosing the liquid crystal 8 therein. Further, on the outer surface of the liquid crystal display element 9, that is, on the outer surfaces of the upper substrate 1 and the lower substrate 2, an upper polarizing plate 10 and a lower polarizing plate 11 are bonded and arranged so that their polarization axes or absorption axes are parallel to each other. A display device is configured.
このように構成されるカラー表示液晶表示装置は、例
えば赤色表示の場合には赤色フイルタ6Rが形成された信
号電極と走査電極との間に所定の電圧を印加することに
より、TN液晶８の光学的性質を変化させ、すなわち赤色
フイルタ6Rに対応する液晶部分に入射する光を透過させ
ることにより、上基板１側から赤色表示のパターンとし
て認識することができる。また、緑色表示パターン，青
色表示パターンも同様に表示できる。さらに白色表示
は、赤色カラーフイルタ6R,緑色カラーフイルタ6Gおよ
び青色カラーフイルタ6Bに対応する信号電極と走査電極
との間に所定の電圧を同時に印加させることにより可能
となる。このように各色の組合せにより多くの色表示が
可能となる。In the color display liquid crystal display device configured as described above, for example, in the case of red display, by applying a predetermined voltage between the signal electrode on which the red filter 6R is formed and the scanning electrode, the optical display of the TN liquid crystal 8 is performed. It is possible to recognize as a red display pattern from the upper substrate 1 side by changing the target property, that is, by transmitting the light incident on the liquid crystal portion corresponding to the red filter 6R. Further, the green display pattern and the blue display pattern can be displayed in the same manner. Further, white display is possible by simultaneously applying a predetermined voltage between the signal electrode and the scanning electrode corresponding to the red color filter 6R, the green color filter 6G and the blue color filter 6B. As described above, many colors can be displayed by combining the respective colors.
しかしながら、このように構成されるカラー表示液晶
表示装置では、下基板２上に形成した個々の下電極４上
にそれぞれカラーフイルタ6R,6G,6Bが一方向に縦長とな
るパターン寸法を有して形成されているので、前面側に
表示されたカラー表示画像は縦方向の線が強調され、画
質に方向性が出てしまうという問題があつた。However, in the color display liquid crystal display device configured as described above, the color filters 6R, 6G, and 6B have a pattern dimension that is vertically long in one direction on each lower electrode 4 formed on the lower substrate 2. Since it is formed, the color display image displayed on the front side has the problem that the vertical lines are emphasized and the image quality becomes directional.
したがつて本発明は前述した従来の問題に鑑みてなさ
れたものであり、その目的は、表示画像に方向性が少な
く、高品質のカラー表示画像が得られるカラー表示液晶
表示装置を提供することにある。Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a color display liquid crystal display device in which a display image has little directivity and a high quality color display image can be obtained. It is in.
本発明に係わるカラー表示液晶表示装置は、対向配置
される透光性上，下基板上に、大小２種類のパターンを
交互に連結してなる複数の上，下電極を互いに直交させ
て形成配置し、各下電極の上または下に該下電極とほぼ
同形状のパターンを有する各色のカラーフイルタを一定
の繰り返し周期で配列して構成したものである。In a color display liquid crystal display device according to the present invention, a plurality of upper and lower electrodes formed by alternately connecting two kinds of patterns, large and small, are formed on a light-transmitting and lower substrate facing each other so as to be orthogonal to each other. The color filters of the respective colors having a pattern having substantially the same shape as the lower electrodes are arranged on or under the respective lower electrodes at a constant repetition period.
本発明においては、各色のカラーフイルタが大小２種
類のパターンを交互に連結して形成されるので、画像表
示の方向性が軽減される。In the present invention, since the color filters of each color are formed by alternately connecting two types of patterns, large and small, the directionality of image display is reduced.
以下、図面を用いて本発明の実施例を詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明によるカラー表示液晶表示装置の一実
施例を示す図で同図（ａ）は要部平面図、同図（ｂ）は
同図（ａ）のＢ−Ｂ′線の断面図、同図（ｃ）は同図
（ａ）のＣ−Ｃ′線の断面図であり、前述の図と同一ま
たは相当する部分には同一符号を付してある。同図にお
いて、上基板１上には、第２図（ａ）に示すように一方
向（横方向）に８角形のパターン3aと４角形のパターン
3bとを交互に連結してなる複数の上電極３′が透明導電
膜により形成されている。また、これらの上電極３′が
形成された上基板１と対向する下基板２上には第２図
（ｂ）に示すように一方向（縦方向）に８角形のパター
ン4aと４角形のパターン4bと交互に連結してなる複数の
下電極４′が透明導電膜により形成されている。そし
て、上基板１上に形成された複数の上電極３′の各８角
形パターン3aおよび４角形パターン3bと、下電極２上に
形成された複数の下電極４′の各８角形パターン4aおよ
び４角形パターン4bとがそれぞれ互いにパターンを対向
させ組み合わされて配置されている。さらにこれらの下
電極４′上には、第３図に示すようにこれらの下電極
４′パターンとほぼ同等のパターン6a,6b形状を有する
赤，緑，青色カラーフイルタ6R,6G,6Bが一定の繰り返し
周期を有して形成配置されている。なお、このような上
電極３′および下電極４′は、通常の透明導電膜の形成
で用いられる蒸着法もしくはスパツタ法などにより容易
に形成することができる。さらにこのような各色のカラ
ーフイルタ6R,6G,6Bも通常のカラーフイルタの形成で用
いられるスクリーン印刷法もしくは染色法などにより容
易に形成することができる。FIG. 1 is a diagram showing an embodiment of a color display liquid crystal display device according to the present invention. FIG. 1 (a) is a plan view of a main part, and FIG. 1 (b) is a sectional view taken along line BB 'in FIG. 1 (a). The drawing and the drawing (c) are cross-sectional views taken along the line CC 'of the drawing (a), and the same or corresponding portions as those in the above-mentioned drawings are denoted by the same reference numerals. In the figure, on the upper substrate 1, as shown in FIG. 2 (a), octagonal patterns 3a and quadrangular patterns are arranged in one direction (lateral direction).
A plurality of upper electrodes 3'which are alternately connected to 3b are formed by a transparent conductive film. On the lower substrate 2 facing the upper substrate 1 on which these upper electrodes 3'are formed, an octagonal pattern 4a and a rectangular pattern 4a are formed in one direction (longitudinal direction) as shown in FIG. 2 (b). A plurality of lower electrodes 4'which are alternately connected to the pattern 4b are formed of a transparent conductive film. Then, the octagonal patterns 3a and 4b of the upper electrodes 3'formed on the upper substrate 1 and the octagonal patterns 4a of the lower electrodes 4'formed on the lower electrode 2 are formed. The quadrangular patterns 4b are arranged in combination so that the patterns face each other. Furthermore, as shown in FIG. 3, red, green, and blue color filters 6R, 6G, 6B having patterns 6a, 6b substantially equivalent to those of the lower electrodes 4'are fixed on the lower electrodes 4 '. Are formed and arranged with a repetition period of. The upper electrode 3'and the lower electrode 4'as described above can be easily formed by a vapor deposition method or a sputtering method used for forming a usual transparent conductive film. Furthermore, the color filters 6R, 6G, and 6B of each color can be easily formed by a screen printing method or a dyeing method used for forming a normal color filter.
このような構成によれば、各色のカラーフイルタ6R,6
G,6Bは、第３図に示したように大小２種類のパターン、
すなわち形状の大きい８角形パターン6aと形状の小さい
４角形パターン6bとを交互に連続して形成するとともに
各色毎にパターン形状を互いに組合せて配列されるの
で、大小２種類のカラーフイルタ6R,6G,6Bを１個の画素
（６ドツト，従来は３ドツト）と考えると、６ドツトの
組み合わせにより階調なしで26通りの色を表現でき、従
来の23通りに比べて８倍の色を選択することが可能とな
る。すなわち、１つの色の明るさを面積として３段階に
使い分けられ、階調表示を行ない、同じ面積で明るさを
強くするよりも視覚により訴えることができる。このこ
とは例えば赤色を強調したいウオーニング表示などに極
めて有効である。また、各色のカラーフイルタ6R,6G,6B
は、８角形パターン6aと４角形パターン6bとを交互に連
結して形成されるので、その各色フイルタ形状の境界部
が第５図に示すように縦方向に一直線上になく、交互に
交錯して形成されるので、カラー表示パターンの縦方向
性が軽減され、色バランスのとれた表示部位の良い画像
表示が可能となる。According to this structure, the color filters 6R, 6
G and 6B are two types of patterns, large and small, as shown in FIG.
That is, since the octagonal pattern 6a having a large shape and the quadrangular pattern 6b having a small shape are alternately and continuously formed and the pattern shapes are arranged in combination for each color, the color filters 6R, 6G of two kinds of large and small, Considering 6B as one pixel (6 dots, 3 dots in the past), it is possible to express 2 6 kinds of colors without gradation by combining 6 dots, and 8 times more colors than the conventional 2 3 kinds. It becomes possible to select. That is, the brightness of one color can be selectively used in three levels as the area, and gradation display can be performed to make a visual appeal rather than increasing the brightness in the same area. This is extremely effective, for example, for a warning display in which red is desired to be emphasized. In addition, each color filter 6R, 6G, 6B
Is formed by alternately connecting the octagonal pattern 6a and the quadrilateral pattern 6b, so that the boundary portion of each color filter shape is not in a straight line in the vertical direction as shown in FIG. Since it is formed as described above, the vertical directionality of the color display pattern is reduced, and it is possible to display an image with a well-balanced color and a good display portion.
なお、前述した実施例においては、各上電極３′，下
電極４′および各色カラーフイルタ6R,6G,6Bを、形状の
大きい８角形パターンと形状の小さい４角形パターンと
を交互に連結して形成するパターン形状とした場合につ
いて説明したが、本発明はこれに限定されるものではな
く、例えば各色カラーフイルタ6R,6G,6Bの場合で説明す
ると、第４図に要部平面図で示すように円形パターン6c
とひし形パターン6dとを交互に連結して形成したパター
ン構成を用いても前述と全く同様の効果が得られること
は言うまでもない。In the above-mentioned embodiment, the upper electrode 3 ', the lower electrode 4'and the color filters 6R, 6G, 6B of the respective colors are alternately connected with an octagonal pattern having a large shape and a rectangular pattern having a small shape. Although the case of forming the pattern shape has been described, the present invention is not limited to this. For example, in the case of each color filter 6R, 6G, 6B, as shown in FIG. Circular pattern 6c
Needless to say, the same effect as described above can be obtained by using a pattern structure formed by alternately connecting and the diamond-shaped patterns 6d.
また、前述した実施例においては、各色カラーフイル
タ6R,6G,6Bを下電極４′上に形成した場合について説明
したが、この下電極４′の下部に形成しても前述と同様
の効果が得られることは勿論である。Further, in the above-mentioned embodiment, the case where the color filters 6R, 6G, 6B of respective colors are formed on the lower electrode 4'has been described. Of course, it can be obtained.
以上説明したように本発明によれば、対向配置される
透光性上，下基板の対向面上にそれぞれ互いに直交して
帯状に複数の上，下電極を形成し、各下電極の上または
下に一定の繰り返し周期で各色のカラーフイルタを形成
するとともに該各色のカラーフイルタは大小２種類のパ
ターンを交互に連結して形成し組み合わせて構成したの
で、カラー画像表示の方向性が軽減され、高品質のカラ
ー表示パターンが得られるという極めて優れた効果を有
する。As described above, according to the present invention, a plurality of upper and lower electrodes are formed in a strip shape orthogonal to each other on the opposing surfaces of the translucent and lower substrates that are arranged to face each other. Since a color filter of each color is formed below at a constant repetition cycle and the color filter of each color is formed by combining and forming patterns of two kinds of large and small alternately, the directionality of color image display is reduced, It has an extremely excellent effect that a high quality color display pattern can be obtained.
第１図（ａ），（ｂ），（ｃ）は本発明によるカラー表
示液晶表示装置の一実施例を示すそれぞれ要部平面図，
同図（ａ）のＢ−Ｂ′線の断面図，同図（ａ）のＣ−
Ｃ′線の断面図、第２図（ａ），（ｂ）は第１図の上電
極，下電極のパターンをそれぞれ示す平面図、第３図は
第１図の各色カラーフイルタのパターンを示す平面図、
第４図は本発明によるカラー表示液晶表示装置の他の実
施例を示す要部平面図、第５図（ａ），（ｂ），（ｃ）
は従来のカラー表示液晶表示装置を示すそれぞれ要部平
面図，同図（ａ）のＢ−Ｂ′線の断面図、同図（ａ）の
Ｃ−Ｃ′線の断面図である。 １……上基板、２……下基板、３′……上電極、3a……
８角形パターン、3b……４角形パターン、４′……下電
極、4a……８角形パターン、4b……４角形パターン、５
……液晶配向膜、6R……赤色カラーフイルタ、6G……緑
色カラーフイルタ、6B……青色カラーフイルタ、6a……
８角形パターン、6b……４角形パターン、6c……円形パ
ターン、6d……ひし形パターン、７……シール材、８…
…TN液晶、９……液晶表示素子、10……上偏光板、11…
…下偏光板。FIGS. 1 (a), (b), and (c) are plan views of essential parts showing an embodiment of a color display liquid crystal display device according to the present invention, respectively.
A sectional view taken along the line BB ′ of FIG.
2A and 2B are plan views showing the patterns of the upper electrode and the lower electrode of FIG. 1, respectively, and FIG. 3 shows the pattern of each color filter of FIG. Plan view,
FIG. 4 is a plan view of essential parts showing another embodiment of the color display liquid crystal display device according to the present invention, and FIGS. 5 (a), 5 (b) and 5 (c).
FIG. 4 is a plan view of relevant parts showing a conventional color display liquid crystal display device, a sectional view taken along the line BB ′ of FIG. 1 ... upper substrate, 2 ... lower substrate, 3 '... upper electrode, 3a ...
Octagonal pattern, 3b …… quadrangular pattern, 4 ′ …… lower electrode, 4a …… octagonal pattern, 4b …… quadrangular pattern, 5
…… Liquid crystal alignment film, 6R …… Red color filter, 6G …… Green color filter, 6B …… Blue color filter, 6a ……
Octagonal pattern, 6b ... Quadrangle pattern, 6c ... Circular pattern, 6d ... Rhombus pattern, 7 ... Sealing material, 8 ...
… TN liquid crystal, 9 …… Liquid crystal display element, 10 …… Upper polarizing plate, 11…
... Lower polarizing plate.
Claims (1)
基板と、前記上基板と対向配置されかつ前記上電極と直
交して帯状に形成された複数の下電極を有する下基板
と、前記下電極の上または下に一定の周期の繰り返しで
形成配置された各色のカラーフイルタと、前記上，下基
板間に封入された液晶とを少なくとも具備してなるカラ
ー表示液晶表示装置において、前記下電極および各色の
カラーフイルタを、大小２種類のパターンを交互に連結
して形成したことを特徴とするカラー表示液晶表示装
置。1. An upper substrate having a plurality of strip-shaped upper electrodes, and a lower substrate having a plurality of strip-shaped lower electrodes which are arranged to face the upper substrate and are orthogonal to the upper electrodes. A color display liquid crystal display device comprising at least a color filter of each color formed and arranged above or below the lower electrode in a predetermined cycle repeatedly, and a liquid crystal sealed between the upper and lower substrates, A color display liquid crystal display device, wherein a lower electrode and a color filter of each color are formed by alternately connecting two types of patterns, large and small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62060211A JPH083588B2 (en) | 1987-03-17 | 1987-03-17 | Color display liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62060211A JPH083588B2 (en) | 1987-03-17 | 1987-03-17 | Color display liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63228132A JPS63228132A (en) | 1988-09-22 |
| JPH083588B2 true JPH083588B2 (en) | 1996-01-17 |
Family
ID=13135591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62060211A Expired - Lifetime JPH083588B2 (en) | 1987-03-17 | 1987-03-17 | Color display liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083588B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102439516B (en) * | 2010-01-20 | 2013-01-23 | 深圳超多维光电子有限公司 | Twisted nematic liquid crystal cell and 2d-3d stereoscopic display apparatus including the same |
-
1987
- 1987-03-17 JP JP62060211A patent/JPH083588B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63228132A (en) | 1988-09-22 |
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