JPH06109912A - Color filter substrate - Google Patents
Color filter substrateInfo
- Publication number
- JPH06109912A JPH06109912A JP26043092A JP26043092A JPH06109912A JP H06109912 A JPH06109912 A JP H06109912A JP 26043092 A JP26043092 A JP 26043092A JP 26043092 A JP26043092 A JP 26043092A JP H06109912 A JPH06109912 A JP H06109912A
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- resin
- pixels
- pixel
- picture elements
- color
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ＣＣＤカメラやカラー
液晶表示装置等に使用するため、透明基板の複数色の多
数の着色樹脂ドットが形成されたカラーフィルタ基板、
特に、表示特性に優れたカラーフィルタ基板の構成に関
する。BACKGROUND OF THE INVENTION The present invention relates to a color filter substrate having a large number of colored resin dots of a plurality of colors formed on a transparent substrate for use in a CCD camera, a color liquid crystal display device or the like.
In particular, it relates to the configuration of a color filter substrate having excellent display characteristics.
【０００２】近年、液晶表示装置は表示面の大型化，大
容量化に伴いカラー化が要求されている。そのため、カ
ラーフィルタを用いた液晶表示装置が提供されるように
なった。In recent years, liquid crystal display devices have been required to have a color display as the display surface becomes larger and the capacity becomes larger. Therefore, liquid crystal display devices using color filters have been provided.
【０００３】一般に、液晶表示装置に使用するカラーフ
ィルタは、透明基板（ガラス基板）に赤，緑，青の３色
からなる多数の画素を形成し、それらを選択的に駆動し
混色させるようになる。In general, a color filter used in a liquid crystal display device is formed by forming a large number of pixels of three colors of red, green and blue on a transparent substrate (glass substrate) and selectively driving them to mix colors. Become.
【０００４】しかし、カラーフィルタの画素は各色毎に
透過率が異なるので、表示時に色別の表示特性，特に混
色させた中間調表示で差が生じ易いため、色間の表示特
性を均一化させる要求が生じるようになった。However, since the pixels of the color filter have different transmissivities for each color, display characteristics for each color, particularly a difference in the halftone display in which colors are mixed, are likely to occur, so that the display characteristics between the colors are made uniform. Requests have come into play.
【０００５】カラー画素の製造方法には、顔料を分散さ
せた樹脂を使用する顔料分散法，ゼラチン等を染料で染
める染色法，透明電極を形成しその表面に電気泳動法で
着色させる電着法が一般に知られており、顔料分散法で
はフォトリソグラフィ技術を利用する方法と印刷技術を
利用する方法があるが、フォトリソグラフィ技術を利用
する顔料分散法が最も多く利用されている。Color pixel manufacturing methods include a pigment dispersion method using a resin in which a pigment is dispersed, a dyeing method in which gelatin is dyed with a dye, and an electrodeposition method in which a transparent electrode is formed and the surface is colored by an electrophoretic method. Are generally known, and there are a method using a photolithography technique and a method using a printing technique in the pigment dispersion method, but the pigment dispersion method using the photolithography technology is most widely used.
【０００６】[0006]
【従来の技術】図７は顔料分散形樹脂膜よりフォトリソ
グラフィ技術にて画素を形成する従来技術の説明図、図
８は図７に示すブラックマスクと一画素の説明図であ
る。2. Description of the Related Art FIG. 7 is an illustration of a prior art in which a pixel is formed from a pigment dispersion type resin film by a photolithography technique, and FIG. 8 is an illustration of a black mask and one pixel shown in FIG.
【０００７】図７(A) および図８(A) において、ガラス
基板（透明基板）１の表面にブラックマスク２を形成す
る。一般に、ブラックマスク２は厚さ1000Å程度の金属
クロム蒸着膜よりパターン形成し、例えば70μm ×260
μm の多数の透孔２a をマトリックス状に設けたとき、
透孔２a 間の桟幅ｂは40μm 程度である。In FIG. 7 (A) and FIG. 8 (A), a black mask 2 is formed on the surface of a glass substrate (transparent substrate) 1. Generally, the black mask 2 is formed by patterning a metal chrome vapor-deposited film having a thickness of about 1000Å, for example, 70 μm x 260
When a large number of μm through holes 2a are provided in a matrix,
The bar width b between the through holes 2a is about 40 μm.
【０００８】図７(B) において、ガラス基板１の表面に
は、ブラックマスク２を覆うように第１の顔料を分散さ
せた感光性樹脂膜、例えば赤色樹脂膜３をスピンコート
法により被着する。一般に、赤色樹脂膜３の厚さは２μ
m 程度である。In FIG. 7B, a photosensitive resin film, for example, a red resin film 3 in which the first pigment is dispersed is coated on the surface of the glass substrate 1 so as to cover the black mask 2 by spin coating. To do. Generally, the thickness of the red resin film 3 is 2μ.
It is about m.
【０００９】次いで、図７(C) に示す如く赤色樹脂膜３
に露光マスク４を重ね、光５を赤色樹脂膜３に照射（露
光処理）する。次いで、赤色樹脂膜３の現像処理を行う
と図７(D) および図８(B) に示す如く、所定の透孔２a
を埋める赤色樹脂パターンＲ′が形成される。Next, as shown in FIG. 7C, the red resin film 3
The exposure mask 4 is overlaid on the red resin film 3 and the red resin film 3 is irradiated with light 5 (exposure process). Next, when the red resin film 3 is developed, as shown in FIGS. 7D and 8B, the predetermined through holes 2a are formed.
To form a red resin pattern R '.
【００１０】しかるのち、第２の顔料を分散させた感光
性樹脂膜、例えば緑色樹脂膜をスピンコート法により被
着し、その樹脂膜を露光，現像した緑色樹脂パターン
Ｇ′と、第３の顔料を分散させた感光性樹脂膜、例えば
青色樹脂膜をスピンコート法により被着し、その樹脂膜
を露光，現像した青色樹脂パターンＢ′を順次形成し、
図７(E) に示すカラーフィルタ基板６が完成する。Then, a photosensitive resin film in which the second pigment is dispersed, for example, a green resin film is applied by a spin coating method, and the resin film is exposed and developed to form a green resin pattern G'and a third resin pattern. A photosensitive resin film in which a pigment is dispersed, for example, a blue resin film is applied by a spin coating method, and the resin film is exposed and developed to form a blue resin pattern B ′ sequentially.
The color filter substrate 6 shown in FIG. 7 (E) is completed.
【００１１】なお、一般に一つの透孔２a を埋める樹脂
パターンを画素と称し、画素の配列には、同色の画素が
直線状に接続するストライプ配列、色違いの画素が一定
の順序で直線状に接続するモザイク配列、色違いの画素
が三角形状に接続するトライアングル配列がある。図７
のカラーフィルタ基板６はストライプ配列である。Generally, a resin pattern that fills one through hole 2a is called a pixel, and the pixel arrangement is a stripe arrangement in which pixels of the same color are connected in a straight line, and pixels of different colors are formed in a straight line in a fixed order. There are a mosaic array in which pixels are connected and a triangle array in which pixels of different colors are connected in a triangular shape. Figure 7
The color filter substrate 6 has a stripe arrangement.
【００１２】[0012]
【発明が解決しようとする課題】画素がストライプ配列
であるカラーフィルタ基板に代表される問題点説明用の
模式図である。FIG. 3 is a schematic diagram for explaining a problem represented by a color filter substrate having pixels in a stripe array.
【００１３】図８(B) において、ブラックマスク２を形
成したガラス基板１の表面に赤色の樹脂パターンＲ′を
形成すると、複数の透孔２a を連続的に埋める樹脂パタ
ーンＲ′は線状である。従って、次の樹脂パターンＧ′
を形成するための樹脂膜をスピンコート法で被着させよ
うとすると、その樹脂液は図中に一点鎖線の矢印で示す
如く、樹脂パターンＲ′を乗り越えて広がることにな
る。In FIG. 8B, when a red resin pattern R'is formed on the surface of the glass substrate 1 on which the black mask 2 is formed, the resin pattern R'which continuously fills the plurality of through holes 2a is linear. is there. Therefore, the next resin pattern G '
When a resin film for forming the film is to be deposited by spin coating, the resin solution spreads over the resin pattern R'as indicated by the one-dot chain line arrow in the figure.
【００１４】さらに、樹脂パターンＲ′と樹脂パターン
Ｇ′を形成したガラス基板１に樹脂パターンＢ′を形成
するための樹脂膜をスピンコート法で被着させようとす
ると、その樹脂液は樹脂パターンＲ′，Ｇ′を乗り越え
て広がることになる。Furthermore, when an attempt is made to apply a resin film for forming the resin pattern B'on the glass substrate 1 on which the resin pattern R'and the resin pattern G'are formed by spin coating, the resin liquid is It will spread beyond R'and G '.
【００１５】このように従来のカラーフィルタ基板で
は、先に形成した樹脂パターンが、次の樹脂パターン形
成用樹脂液の塗付に際して樹脂液の流動性を損なうこと
なる。そのため、第２，第３の樹脂膜には厚さむらが生
じ、その厚さむらが表示の色むらになるという問題点が
あった。As described above, in the conventional color filter substrate, the resin pattern previously formed impairs the fluidity of the resin liquid when the next resin pattern forming resin liquid is applied. Therefore, there is a problem in that the second and third resin films have uneven thickness, and the uneven thickness causes display unevenness in color.
【００１６】かかる問題点はストライプ配列のカラーフ
ィルタ基板に限定されず、多数の画素がモザイク配列ま
たはトライアングル配列であるカラーフィルタ基板にお
いても、従来の隣接画素は殆ど隙間なく形成されるため
共通の問題点となっている。Such a problem is not limited to the color filter substrate having the stripe arrangement, and even in the color filter substrate having a large number of pixels in the mosaic arrangement or the triangle arrangement, the conventional adjoining pixels are formed with almost no space, which is a common problem. It is a point.
【００１７】[0017]
【課題を解決するための手段】樹脂液を流れ易くして樹
脂膜の厚さを均一化し、該樹脂膜より形成する画素の厚
さを揃えるようにし、液晶表示装置における表示色むら
の低減を目的とする本発明のカラーフィルタ基板は、透
明基板１に形成した複数色の多数の着色樹脂画素Ｒ，
Ｇ，Ｂが、隣接する画素に接することなく分離し形成し
たこと、または、透明基板１に形成した複数色の多数の
着色樹脂画素例えば画素Ｒ，Ｇが、所望色の画素例えば
画素Ｂを除いた全ドットが隣接画素に接することなく分
離して形成され、該所望色の樹脂画素が連通し他の画素
間隙を埋めた樹脂パターンＢ-3とし形成したこと、また
は、透明基板１に形成した複数色の多数の着色樹脂画素
が、同じ行または列に同色の該画素が連通するストライ
プ配列であり、該同色の画素が連通する樹脂パターンＲ
-1，Ｇ-1，Ｂ-1の画素境界部分に幅方向の窪み８を設け
たこと、または、透明基板１に形成した複数色の多数の
着色樹脂画素が、同じ行または列に同色の該画素が連通
するストライプ配列であり、該同色の画素が連通する樹
脂パターンＲ-2，Ｇ-2，Ｂ-2の画素境界部分に厚さ方向
の窪み９を設けたことを特徴とする。[Means for Solving the Problems] It is possible to reduce the display color unevenness in a liquid crystal display device by facilitating the flow of a resin liquid to make the thickness of a resin film uniform and to make the pixels formed from the resin film have a uniform thickness. The target color filter substrate of the present invention comprises a large number of colored resin pixels R of a plurality of colors formed on the transparent substrate 1.
G and B are formed separately without contacting adjacent pixels, or a large number of colored resin pixels of a plurality of colors such as pixels R and G formed on the transparent substrate 1 except for pixels of a desired color such as pixel B. All of the dots were formed separately without contacting adjacent pixels, and the resin pixel of the desired color was communicated to form a resin pattern B -3 in which other pixel gaps were filled, or formed on the transparent substrate 1. A large number of colored resin pixels of a plurality of colors are in a stripe array in which the pixels of the same color communicate in the same row or column, and a resin pattern R in which the pixels of the same color communicate
-1 , G -1 , B -1 has a recess 8 in the width direction at the pixel boundary portion, or a plurality of colored resin pixels of a plurality of colors formed on the transparent substrate 1 have the same color in the same row or column. It is characterized by a stripe array in which the pixels communicate with each other, and a depression 9 in the thickness direction is provided at a pixel boundary portion of the resin patterns R -2 , G -2 , B -2 with which the pixels of the same color communicate.
【００１８】[0018]
【作用】前記手段によれば、画素間に間隙を設ける，複
数の画素を連通させた樹脂パターンでは画素の境界部分
に窪みを設けたため、第２，第３の画素形成用樹脂膜を
形成する樹脂液の流れは、樹脂液の一部が画素間隙を通
過または、樹脂パターンの窪みを乗り越えて広がるよう
になる。According to the above-mentioned means, the resin pattern for connecting a plurality of pixels with a gap provided between the pixels is provided with the depression at the boundary between the pixels, so that the second and third pixel forming resin films are formed. The flow of the resin liquid is such that a part of the resin liquid passes through the pixel gaps or goes over the depressions of the resin pattern and spreads.
【００１９】従って、樹脂液の広がりは画素が殆ど密着
する従来構成のものより容易となり、樹脂膜の厚さが均
一化され、そのことによって画素の厚さが均一となり、
画素の厚さむらによる表示むらが少なくなる。Therefore, the spread of the resin liquid becomes easier than that of the conventional structure in which the pixels are almost in close contact with each other, and the thickness of the resin film is made uniform, whereby the thickness of the pixels becomes uniform,
Display unevenness due to uneven pixel thickness is reduced.
【００２０】[0020]
【実施例】図１は本発明の第１の実施例を説明するため
の模式図であり、図１(A) は第１の画素を形成した斜視
図、図１(B) は完成したカラーフィルタ基板の平面図で
ある。1 is a schematic view for explaining a first embodiment of the present invention, FIG. 1 (A) is a perspective view in which a first pixel is formed, and FIG. 1 (B) is a completed color. It is a top view of a filter substrate.
【００２１】図１(A) において、ブラックマスク２を形
成したガラス基板１の上面には、その縦方向に複数個
（図は４個）が整列する赤色画素Ｒを、複数列（図は２
列）に形成する。In FIG. 1A, on the upper surface of the glass substrate 1 on which the black mask 2 is formed, a plurality of rows of red pixels R (four in the figure) are arranged in a plurality of columns (two in the figure).
Row).
【００２２】ブラックマスク２の透孔２a が70μm ×26
0 μm のとき、ブラックマスク２の桟幅ｂは40μm であ
り、厚さが２μm 程度である画素Ｒは、透孔２a の周囲
に５μm 程度重なる寸法とする。The through hole 2a of the black mask 2 is 70 μm × 26
When the width is 0 μm, the width b of the black mask 2 is 40 μm, and the pixel R having a thickness of about 2 μm has a size overlapping about 5 μm around the through hole 2a.
【００２３】そこで、次の画素形成用樹脂膜を形成する
ための樹脂液を、スピンコート法で塗付するとその流れ
は図中の矢印で示す如く、一部は画素Ｒを乗り越えて広
がることになるが、他の一部は画素Ｒの間隙を通って直
進するようになる。Therefore, when the resin liquid for forming the next pixel forming resin film is applied by the spin coating method, the flow partially spreads beyond the pixel R as shown by the arrow in the figure. However, the other part goes straight through the gap of the pixel R.
【００２４】従って樹脂液の流れは、図８に示す従来の
流れよりスムーズになり、樹脂膜の厚さむらが減少す
る。画素Ｒの形成に次いで、第２の画素例えば画素Ｇを
形成し、第３の画素例えば画素Ｂを順次形成する図１
(B) に示す如く、カラーフィルタ基板11が完成し、ブラ
ックマスク２の桟幅ｂが40μm のとき、全画素Ｒ，Ｇ，
Ｂの隣接間は約30μm離れるようになる。かかる間隙に
は例えば平坦化樹脂を充填する。Therefore, the flow of the resin liquid becomes smoother than that of the conventional flow shown in FIG. 8, and the uneven thickness of the resin film is reduced. After forming the pixel R, a second pixel such as the pixel G is formed, and a third pixel such as the pixel B is sequentially formed.
As shown in (B), when the color filter substrate 11 is completed and the width b of the black mask 2 is 40 μm, all pixels R, G,
The distance between adjacent Bs is about 30 μm. For example, a flattening resin is filled in the gap.
【００２５】図２は本発明の第２の実施例を説明するた
めの模式平面図、図３は本発明の第３の実施例における
画素配列を示す概略平面図、図４はスピンコート法によ
る樹脂膜の説明図である。FIG. 2 is a schematic plan view for explaining the second embodiment of the present invention, FIG. 3 is a schematic plan view showing a pixel array in the third embodiment of the present invention, and FIG. 4 is a spin coating method. It is explanatory drawing of a resin film.
【００２６】図２において、カラーフィルタ基板12はガ
ラス基板１の上面にブラックマスク２を形成し、その上
にそれぞれ多数（図は４個）の同色のものが図の上下方
向に整列する第１，第２の画素、例えば画素ＲとＧと
を、図１のそれらと同じく隣接間が約30μm 離れるよう
に形成したのち、多数の第３の画素例えば図１の画素Ｂ
を一体化すると共に画素間隙を埋める樹脂パターンＢ-3
を形成し構成する。In FIG. 2, the color filter substrate 12 has a black mask 2 formed on the upper surface of a glass substrate 1, and a large number (four in the figure) of the same color are arranged on the black mask 1 in the vertical direction of the figure. , A second pixel, for example, pixels R and G, are formed such that adjacent portions thereof are separated by about 30 μm, as in FIG. 1, and then a large number of third pixels, for example, pixel B in FIG.
Resin pattern B -3 that integrates the pixels and fills the pixel gap
To form and configure.
【００２７】かかるカラーフィルタ基板12において、画
素Ｇを形成する樹脂液および樹脂パターンＢ-3を形成す
る樹脂液の流れは、図１(A) に矢印で示すそれと同様、
即ち一部が画素Ｒまたは画素ＲとＧを乗り越え他の一部
が画素間隙を直進するため、従来の流れよりスムーズに
なり樹脂膜の厚さむらが減少すると共に、完成状態で画
素間隙をないため、平坦化層の形成が容易または不要に
なる。In the color filter substrate 12, the flow of the resin liquid forming the pixel G and the resin liquid forming the resin pattern B -3 is the same as that shown by the arrow in FIG. 1 (A).
That is, one part goes over the pixel R or the pixels R and G and the other part goes straight through the pixel gap, so that it becomes smoother than the conventional flow and the uneven thickness of the resin film is reduced, and there is no pixel gap in the completed state. Therefore, it is easy or unnecessary to form the flattening layer.
【００２８】図３において、カラーフィルタ基板13に形
成したそれぞれ多数の画素Ｒ，Ｇ，Ｂは、図１のそれら
と同様に図の上下方向に同色のものが整列し、上下，左
右方向に約30μm 離して形成する。In FIG. 3, a large number of pixels R, G, and B formed on the color filter substrate 13 are arranged in the same color in the vertical direction in the same manner as those in FIG. Form 30 μm apart.
【００２９】ただし、画素Ｒ，Ｇ，Ｂを形成するための
樹脂膜をスピンコート法で形成するときの遠心力は、図
４(A) に矢印で示す如き渦巻き状に作用し、従って、ガ
ラス基板１に形成された樹脂膜７の厚さは図４(B) に示
す如く、中心部で10％程度厚くなるという欠点がある。However, the centrifugal force when the resin film for forming the pixels R, G and B is formed by the spin coating method acts in a spiral shape as shown by the arrow in FIG. As shown in FIG. 4 (B), the resin film 7 formed on the substrate 1 has a drawback that it is thicker by about 10% at the central portion.
【００３０】カラーフィルタ基板13の画素Ｒ，Ｇ，Ｂ
は、前記スピンコート法による欠点を解決するため、最
初および２番目に形成される画素例えば画素Ｒ，Ｇの形
状を、スピンコート法における樹脂液の流れを一層容易
ならしめる平行四辺形、即ち図の上下方向の画素間隙が
直線状であるのに対し、図の左右方向の画素間隙を基板
13の中心に対し対称な傾斜をもたせた形状とし、３番目
に形成する画素Ｂの形状を画素Ｒ，Ｇに揃えたものであ
る。Pixels R, G, B of the color filter substrate 13
In order to solve the drawbacks of the spin coating method, the shapes of the first and second pixels, for example, the pixels R and G, are parallelograms, that is, the shapes of the parallelograms that facilitate the flow of the resin liquid in the spin coating method. The vertical pixel gap in the figure is linear, while the horizontal pixel gap in the figure
A shape having a symmetrical inclination with respect to the center of 13 is formed so that the shape of the pixel B formed third is the same as that of the pixels R and G.
【００３１】従って、カラーフィルタ基板13の画素Ｒ，
Ｇ，Ｂは、図１のそれらより一層厚さが均一化し、その
ことによって、液晶表示装置に適用したとき表示品位も
一層向上（表示むらが減少）するようになる。Therefore, the pixels R of the color filter substrate 13
The thicknesses of G and B are made more uniform than those of FIG. 1, so that when applied to a liquid crystal display device, the display quality is further improved (display unevenness is reduced).
【００３２】なお、図３において画素Ｒ，Ｇ，Ｂの形成
前に形成するブラックマスク２の透孔(2a)は、画素Ｒ，
Ｇ，Ｂの形状に合わせた平行四辺形とする。図５は本発
明の第４の実施例における画素の一部を示す平面図、図
６は本発明の第５，第６の実施例における画素の説明図
である。In FIG. 3, the through holes (2a) of the black mask 2 formed before the formation of the pixels R, G and B are the pixels R,
It is a parallelogram matching the shapes of G and B. FIG. 5 is a plan view showing a part of the pixel in the fourth embodiment of the present invention, and FIG. 6 is an explanatory view of the pixel in the fifth and sixth embodiments of the present invention.
【００３３】図５において、ガラス基板１に形成し図の
上下方向に同色のものが整列する画素Ｒ，Ｇ，Ｂは、図
中の矢印で示すガラス基板１の中心部に向けて、次第に
小さくする。ただし、図示しないブラックマスクの桟幅
を40μm としたとき、画素間隔ｄは、ガラス基板１の中
心部で約30μm,ガラス基板１の外縁部で５〜10μm とす
る。In FIG. 5, the pixels R, G, B formed on the glass substrate 1 and having the same color aligned in the vertical direction of the drawing are gradually reduced toward the center of the glass substrate 1 shown by the arrow in the drawing. To do. However, when the width of the black mask (not shown) is 40 μm, the pixel spacing d is about 30 μm at the center of the glass substrate 1 and 5 to 10 μm at the outer edge of the glass substrate 1.
【００３４】かかる画素Ｒ，Ｇ，Ｂを形成したカラーフ
ィルタ基板14は、画素形成用樹脂膜の形成に際し樹脂液
の流れをスムーズにすると共に、基板14の中心部におけ
る樹脂液の流れが特に良くなる。そのため、図４(B) に
示す樹脂膜７の中心部の厚さが平準化し、全画素Ｒ，
Ｇ，Ｂの厚さが均一化されるようになる。The color filter substrate 14 on which the pixels R, G, B are formed smooths the flow of the resin liquid when forming the pixel forming resin film, and the flow of the resin liquid in the central portion of the substrate 14 is particularly good. Become. Therefore, the thickness of the central portion of the resin film 7 shown in FIG.
The thicknesses of G and B are made uniform.
【００３５】図６(A) において、カラーフィルタ基板15
は、同色の画素を図の上下方向に連通した着色樹脂パタ
ーンＲ-1, Ｇ-1, Ｂ-1を形成し構成したものである。図
１に示す画素Ｒ，Ｇ，Ｂを図の上下方向に連通せしめた
樹脂パターンＲ-1,Ｇ-1, Ｂ-1は、画素境界部に幅方向
の窪み８を有する。In FIG. 6A, the color filter substrate 15
Is a structure in which colored resin patterns R -1 , G -1 , B -1 are formed by connecting pixels of the same color in the vertical direction of the drawing. The resin patterns R -1 , G -1 , B -1 in which the pixels R, G, B shown in FIG. 1 are connected to each other in the vertical direction in the drawing have a recess 8 in the width direction at the pixel boundary portion.
【００３６】従って、例えば樹脂パターンＲ-1を形成し
たのち、樹脂パターンＧ-1形成用樹脂膜の形成に際し樹
脂液の流れは、窪み８部分で樹脂パターンＲ-1を乗り越
え易くなり、そのことによって樹脂膜の厚さが均一化す
るようになる。Therefore, for example, after the resin pattern R -1 is formed, the flow of the resin liquid during the formation of the resin film for forming the resin pattern G -1 becomes easy to get over the resin pattern R -1 at the recess 8 portion. As a result, the thickness of the resin film becomes uniform.
【００３７】図６(C) は図６(B) の矢視側面図である。
図６(B) および(C) において、カラーフィルタ基板16
は、同色の画素を図の上下方向に連通した着色樹脂パタ
ーンＲ -2, Ｇ-2, Ｂ-2を形成し構成したものである。FIG. 6C is a side view of FIG. 6B as seen from the arrow.
In FIGS. 6B and 6C, the color filter substrate 16
Is a colored resin pattern in which pixels of the same color communicate vertically in the figure.
R -2, G-2, B-2Is formed and configured.
【００３８】図１に示す画素Ｒ，Ｇ，Ｂを図の上下方向
に連通せしめた樹脂パターンＲ-2,Ｇ-2, Ｂ-2は、画素
境界部に厚さ方向の窪み９を有する。従って、例えば樹
脂パターンＲ-2を形成したのち、樹脂パターンＧ-2形成
用樹脂膜の形成に際し樹脂液の流れは、窪み９部分で樹
脂パターンＲ-2を乗り越え易くなり、そのことによって
樹脂膜の厚さが均一化するようになる。The resin patterns R -2 , G -2 , and B -2 in which the pixels R, G, and B shown in FIG. 1 are connected in the vertical direction in the drawing have a recess 9 in the thickness direction at the pixel boundary portion. Therefore, for example, after forming the resin pattern R -2 , when forming the resin film for forming the resin pattern G -2 , the flow of the resin liquid easily gets over the resin pattern R -2 at the recess 9 portion, which causes the resin film to be formed. The thickness becomes uniform.
【００３９】なお、図４(B) に示す如く樹脂膜７の中心
部が厚くなるのに対処する方法として、本発明の他の実
施例によるカラーフィルタ基板は、ガラス基板１の樹脂
膜７が厚くなる部分（樹脂膜形成用回転テーブルの回転
中心対応部）の画素Ｒ，Ｇ，Ｂに対し、図１に示す如き
画素間隙をまたは、図６(A) に示す如き窪み８をまた
は、図６(C),(B) に示す如き窪み９を形成し、樹脂膜７
の厚さが平準化される部分には従来と同じように密着す
る画素Ｒ，Ｇ，Ｂを形成したを作成し、所期の目的が達
成された。As a method of coping with the thick central portion of the resin film 7 as shown in FIG. 4B, the color filter substrate according to another embodiment of the present invention is such that the resin film 7 of the glass substrate 1 is For the pixels R, G, B in the thickened portion (corresponding to the center of rotation of the rotary table for resin film formation), the pixel gap as shown in FIG. 1 or the recess 8 as shown in FIG. The resin film 7 is formed by forming the depression 9 as shown in 6 (C) and (B).
By forming the pixels R, G, and B, which are in close contact with each other, in the portion where the thickness is equalized as in the conventional case, the intended purpose is achieved.
【００４０】[0040]
【発明の効果】以上説明したように本発明によるカラー
フィルタ基板は、第２，第３の画素形成用樹脂膜を形成
する樹脂液の流れが、従来構成のものよりスムーズとな
る。そのため、画素形成用樹脂膜の厚さが均一化され、
そのことによって画素の厚さが均一となり、画素の厚さ
むらによる表示むらが少なくなる。As described above, in the color filter substrate according to the present invention, the flow of the resin liquid for forming the second and third pixel forming resin films becomes smoother than that of the conventional structure. Therefore, the pixel forming resin film has a uniform thickness,
As a result, the pixel thickness becomes uniform, and display unevenness due to the pixel thickness unevenness is reduced.
【図１】 本発明の第１の実施例を説明するための模式
図FIG. 1 is a schematic diagram for explaining a first embodiment of the present invention.
【図２】 本発明の第２の実施例を説明するための模式
平面図FIG. 2 is a schematic plan view for explaining a second embodiment of the present invention.
【図３】 本発明の第３の実施例における画素配列を示
す概略平面図FIG. 3 is a schematic plan view showing a pixel array according to a third embodiment of the present invention.
【図４】 スピンコート法による樹脂膜の説明図FIG. 4 is an explanatory diagram of a resin film formed by spin coating
【図５】 本発明の第４の実施例における画素の一部を
示す平面図FIG. 5 is a plan view showing a part of a pixel according to a fourth embodiment of the present invention.
【図６】 本発明の第５，第６の実施例における画素の
説明図FIG. 6 is an explanatory diagram of pixels in fifth and sixth embodiments of the present invention.
【図７】 画素を形成する従来技術の説明図FIG. 7 is an explanatory diagram of a conventional technique for forming pixels.
【図８】 図７に示すブラックマスクと一画素の説明図8 is an explanatory diagram of the black mask and one pixel shown in FIG.
１はガラス基板（透明基板） ２はブラックマスク ３は樹脂膜 ８は画素境界部分の幅方向の窪み ９は画素境界部分の厚さ方向の窪み 11,12,13,14,15,16 はカラーフィルタ基板 Ｂ，Ｇ，Ｒは画素 B-1,B-2,B-3,G-1,G-2,R-1,R-2は樹脂パターン1 is a glass substrate (transparent substrate) 2 is a black mask 3 is a resin film 8 is a recess in the width direction of the pixel boundary portion 9 is a recess in the thickness direction of the pixel boundary portion 11,12,13,14,15,16 is the color Filter substrate B, G, R are pixels B -1 , B -2 , B -3 , G -1 , G -2 , R -1 , R -2 are resin patterns
Claims (4)
着色樹脂画素(R,G,B) が、隣接する画素に接することな
く分離し形成されてなること、を特徴とするカラーフィ
ルタ基板。1. A color characterized in that a large number of colored resin pixels (R, G, B) of a plurality of colors formed on a transparent substrate (1) are formed separately without contacting adjacent pixels. Filter substrate.
着色樹脂画素(R,G)が、所望色の画素(B) を除いた全ド
ットが隣接画素に接することなく分離して形成され、該
所望色の樹脂画素が連通し他の画素間隙を埋めた樹脂パ
ターン(B-3)とし形成されてなることを特徴とするカラ
ーフィルタ基板。2. A large number of colored resin pixels (R, G) of a plurality of colors formed on a transparent substrate (1) are separated without all dots except the pixel (B) of a desired color coming into contact with adjacent pixels. A color filter substrate, which is formed to form a resin pattern (B −3 ) which communicates with the resin pixel of the desired color and fills the other pixel gap.
着色樹脂画素が、同じ行または列に同色の該画素が連通
するストライプ配列であり、該同色の画素が連通する樹
脂パターン(R-1,G-1,B-1) の画素境界部分に幅方向の窪
み(8) を設けたことを特徴とするカラーフィルタ基板。3. A plurality of colored resin pixels of a plurality of colors formed on a transparent substrate (1) is a stripe array in which the pixels of the same color communicate with each other in the same row or column, and a resin pattern (the resin pattern with which the pixels of the same color communicate with each other). A color filter substrate, characterized in that a recess (8) in the width direction is provided at a pixel boundary portion of R -1 , G -1 , B -1 ).
着色樹脂画素が、同じ行または列に同色の該画素が連通
するストライプ配列であり、該同色の画素が連通する樹
脂パターン(R-2,G-2,B-2) の画素境界部分に厚さ方向の
窪み(9) を設けたことを特徴とするカラーフィルタ基
板。4. A plurality of colored resin pixels of a plurality of colors formed on a transparent substrate (1) is a stripe array in which the pixels of the same color communicate with each other in the same row or column, and a resin pattern (the resin pattern with which the pixels of the same color communicate with each other). A color filter substrate, characterized in that a recess (9) in the thickness direction is provided at a pixel boundary portion of R -2 , G -2 , B -2 ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26043092A JPH06109912A (en) | 1992-09-30 | 1992-09-30 | Color filter substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26043092A JPH06109912A (en) | 1992-09-30 | 1992-09-30 | Color filter substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06109912A true JPH06109912A (en) | 1994-04-22 |
Family
ID=17347827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26043092A Pending JPH06109912A (en) | 1992-09-30 | 1992-09-30 | Color filter substrate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06109912A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999048339A1 (en) * | 1998-03-17 | 1999-09-23 | Seiko Epson Corporation | Substrate for patterning thin film and surface treatment thereof |
| US8605236B2 (en) | 2010-03-02 | 2013-12-10 | Samsung Display Co., Ltd. | Liquid crystal display apparatus having color filter with color connection on black matrix and method of manufacturing the same |
-
1992
- 1992-09-30 JP JP26043092A patent/JPH06109912A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999048339A1 (en) * | 1998-03-17 | 1999-09-23 | Seiko Epson Corporation | Substrate for patterning thin film and surface treatment thereof |
| US7015503B2 (en) | 1998-03-17 | 2006-03-21 | Seiko Epson Corporation | Method of forming thin film patterning substrate including formation of banks |
| JP2006086128A (en) * | 1998-03-17 | 2006-03-30 | Seiko Epson Corp | Manufacturing method of display device |
| US7214959B2 (en) | 1998-03-17 | 2007-05-08 | Seiko Epson Corporation | Method of forming thin film patterning substrate including formation of banks |
| US7273801B2 (en) | 1998-03-17 | 2007-09-25 | Seiko Epson Corporation | Method of forming thin film patterning substrate including formation of banks |
| US7442955B2 (en) | 1998-03-17 | 2008-10-28 | Seiko Epson Corporation | Method of forming thin film patterning substrate including formation of banks |
| US7932518B2 (en) | 1998-03-17 | 2011-04-26 | Seiko Epson Corporation | Method of forming thin film patterning substrate including formation of banks |
| US8605236B2 (en) | 2010-03-02 | 2013-12-10 | Samsung Display Co., Ltd. | Liquid crystal display apparatus having color filter with color connection on black matrix and method of manufacturing the same |
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