JPH08201799A - Color filter for liquid crystal display - Google Patents

Abstract

PURPOSE: To eliminate an uneven space formed in a liquid crystal sealed cell of a bead dispersion type color liquid crystal display panel and to prevent white unevenness from occurring on the display of the panel by eliminating the difference of the level of bead spacers dispersed in the picture element area and the non-picture element area of a color filter used in such type of display panel. CONSTITUTION: A light shielding non-picture element area N is solidly formed as a light shielding pattern 20 so as to surround the pixel area I on a transparent base plate 11, and the pattern is formed so that the outermost end of a coloring layer 12 pattern-formed from the picture element area I to the end of the light shielding pattern 20 of the non-picture element area N may be somewhat overlapped on the end of the pattern 20, and a transparent overcoat layer 14 is formed evenly all over the surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color filter used in a bead-dispersed color liquid crystal display panel in which transparent bead spacers are dispersed and coated with a liquid crystal, and a pixel for color display is provided on a transparent substrate. A rectangular pixel area in which a large number of light-shielding black matrix patterns are arranged regularly at the boundary between adjacent pixels, and an outer shape continuously provided outside the pixel area And a liquid crystal display color filter in which the light-shielding non-pixel region is improved.

[0002]

2. Description of the Related Art Bead-dispersed color liquid crystal display panels are
As shown in the schematic cross-sectional side view of the XX portion on one side of the panel in FIG. 5, one side of the transparent substrate 1 (glass substrate) has an active matrix shape or a conductive pattern shape (striped shape).
The film thickness is 300 to 2000Å, or 2000 to 40
The first substrate A is formed by providing a transparent electrode film 2 (ITO film or the like) of 00Å.

Further, the XX partial side sectional view of one side of the color filter of FIGS. 5 and 6A, the color filter partial plan view of FIG. 6B, and the color filter overall schematic plan view of FIG. 6C are shown. As shown, the other transparent substrate 1 facing this
On 1 (glass substrate), a color-colored red R having a rectangular planar shape (which may be a honeycomb shape, a circular shape or the like) which becomes a color pixel (pixel) for color liquid crystal display,
Colored layer 12 of each color consisting of green G and blue B
(For example, a color pixel layer having a thickness of about 1.0 to 2.5 μm)
Are arranged in a regular manner, and a thin line-shaped light-shielding black matrix 13 (for example, a film thickness t = 0.6 to 0.8 μm) is provided at the adjacent boundary portion of each pixel of each color coloring layer 12 adjacent to each other.
Is formed, and a pixel region I having a rectangular shape as a whole is provided.

Further, as shown in FIGS. 5 and 6A to 6C, a solid shape which is continuous with the light-shielding black matrix 13 so as to surround the pixel region I is provided outside the pixel region I. Light-shielding layer 16 (for example, film thickness t = 0.6 to 0.8)
A light-shielding non-pixel region N having an outer shape (for example, a rectangular ring shape) formed of about μm) is provided.

Then, as shown in FIG.
A color coloring layer 12 is formed so as to hang over the entire surface of the rectangular pixel region I formed above and the entire surface or inner portion of the outer non-pixel region N, and the thickness of synthetic resin is formed on the entire surface of the color coloring layer 12. Transparent overcoat layer 1 having a thickness of about 2 μm to 3 μm
4 and a film thickness of 300 to 200 on the entire color colored layer 12 of each color or in a conductive pattern (a stripe shape orthogonal to the transparent electrode film 2 in a stripe shape).
0Å or 2000-4000Å transparent electrode film 15
(ITO film or the like) is provided in this order to form the second substrate B.

On the ITO film 2 of the first substrate A or /
A liquid crystal alignment film (not shown) is provided on the entire surface of the second substrate B from the ITO film 15.

As shown in FIG. 5, the bead-dispersed color liquid crystal display panel is arranged such that the ITO film 2 forming side of the first substrate A and the ITO film 15 forming side of the second substrate B are parallel to each other. The liquid crystal cell 17 is provided by aligning the liquid crystal cells 17 and forming an appropriate gap inside the superposition.
Liquid crystal L is filled into the inside of 7 after an appropriate amount of granular transparent bead spacers 3 is applied, and the substrates 1 and 11 are joined at their edges by an adhesive (sealing material such as epoxy adhesive) or the like. It is formed by joining and sealing with the sealing material 18.

In the above liquid crystal color display panel, the transparent bead spacers 3 having a predetermined particle size (for example, a diameter of about 5 μm) are applied in a dispersed state as a spacer for keeping a predetermined amount of uniform gap before the liquid crystal L is sealed. After that, the liquid crystal L is enclosed, and the transparent bead spacers 3 are dispersed together with the liquid crystal L in a single layer state in the liquid crystal cell 17 in the overlapping gap between the first substrate A and the second substrate B in the vacuum chamber. By enclosing, a predetermined amount of gap corresponding to the particle diameter of the beads is maintained.

Another example of the conventional bead-dispersed color liquid crystal display panel is a sectional view taken along the line X-X of one side of the color filter in FIGS. 7 and 8A and the color filter in FIG. 8B. As shown in the partial plan view and the overall schematic plan view of the color filter in FIG. 8C, the other transparent substrate 11 facing the one transparent substrate 1 is provided with a color pixel (pixel) for color liquid crystal display. A large number of color-colored layers 12 of red, green G, and blue B, which are color-colored in a live-plane shape, are regularly arranged, and the pixels of each color-colored layer 12 are adjacent to each other and are adjacent to each other. A thin line-shaped light-shielding black matrix 13 is formed in the portion, and a rectangular pixel region I is provided as a whole.

Further, as shown in FIGS. 7 and 8A to 8C, outside the pixel area I, a solid shape which is continuous with the light-shielding black matrix 13 so as to surround the pixel area I is provided. An outer shape (for example, a rectangular ring shape) light-shielding non-pixel region N formed by the light-shielding layer 16 is provided.

Then, as shown in FIG.
A color coloring layer 12 is formed so as to hang over the entire surface of the rectangular pixel region I formed above and the entire surface or inner portion of the outer non-pixel region N, and a transparent overcoat layer 14 is formed on the entire surface of the color coloring layer 12. Then, the transparent electrode film 15 (ITO film) is provided in this order on the color-colored layer 12 of each color or in a conductive pattern (in a stripe shape orthogonal to the transparent electrode film 2 in a stripe shape). As a result, the second substrate B is formed.

On the ITO film 2 of the first substrate A or /
A liquid crystal alignment film (not shown) is provided on the entire surface of the second substrate B from the ITO film 15.

As shown in FIG. 7, the bead-dispersed color liquid crystal display panel is arranged such that the ITO film 2 forming side of the first substrate A and the ITO film 15 forming side of the second substrate B are parallel to each other. The liquid crystal cell 17 is provided by aligning the liquid crystal cells 17 and forming an appropriate gap inside the superposition.
After a suitable amount of granular transparent bead spacers 3 are dispersed and applied in the inside 7, liquid crystal L is filled and sealed, and the substrates 1 and 11 are bonded at their edge portions with an adhesive 18 (a sealing material such as an epoxy-based adhesive). ) Are joined together and formed.

In the liquid crystal color display panel, the transparent bead spacers 3 having a predetermined particle diameter (for example, a diameter of about 5 μm) are dispersed and applied as a spacer for maintaining a predetermined amount of uniform gaps before the liquid crystal L is enclosed. The liquid crystal L is encapsulated, and together with the liquid crystal L, the transparent bead spacers 3 are dispersed and encapsulated in a single layer in the liquid crystal cell 17 in the overlapping gap between the first substrate A and the second substrate B in the vacuum chamber. As a result, a predetermined amount of gap corresponding to the bead diameter is maintained.

[0015]

In the color filter of the conventional liquid crystal color display panel described above, as shown in FIGS. 5 and 7, the color coloring layer 12 and the transparent overcoat formed on the second substrate B are laminated. Coat layer 14 and transparent electrode film 1
The film surface heights of 5 and 5 are formed particularly high on the black matrix 13 and the light shielding layer 16.

The black matrix 13 of the pixel region I formed on the second substrate B has a predetermined pitch (for example, 100 to 300) sufficiently larger than the particle diameter of the bead spacer 3.
However, the light-shielding layer 16 in the non-pixel region N is wider than the matrix width of the black matrix 13 in the pixel region I (for example, about 10 to 50 μm) (for example, about 500 to 5000 μm or more). , It is formed in a solid shape.

In the pixel area I, the bead spacer 3 in the liquid crystal filled cell 17 between the first substrate A and the second substrate B is
While overcoming the relatively narrow black matrix 13, the matrix 13 and 13 are dispersedly present in the lower position of the relatively thin film corresponding to the pixel above, while in the non-pixel region N, a solid image is formed. There is a tendency to exist dispersedly at high positions corresponding to the upper side of the light shielding layer 16, and therefore, the height difference ΔT (for example, 5.5 to 6 μm or more) in the bead spacers 3 dispersed in the pixel region I and the non-pixel region N. Occurs,
Particularly in the case of STN (Super Twist Nematic) liquid crystal display system, unless the thickness of the liquid crystal layer is set within the range of 5 ± 0.5 μm, panel display at the boundary between the pixel region I and the non-pixel region N is performed. White spots are likely to occur.

The liquid crystal color display panel assembled by dispersing and enclosing the liquid crystal L and the spacer 3 in the single layer state in the liquid crystal encapsulation cell 17 between the first substrate A and the second substrate B has the atmospheric pressure. Due to the negative pressure in the liquid crystal filled cell 17, a stress is applied to the first substrate A and the second substrate B in a direction closer to each other, and as a result, as shown in FIGS. Due to the height difference, the first substrate A and the second substrate B
Alternatively, either one of the substrates hangs from the peripheral portion of the panel to the central portion and is deformed in a direction in which the substrates gradually approach each other.

Therefore, due to the height difference of the bead spacers 3 dispersed in the pixel region I and the non-pixel region N, a non-uniform gap is generated in the liquid crystal filled cells 17 of the panel, and the boundary portion between the pixel region I and the non-pixel region N is generated. White spots may appear on the panel display.

An object of the present invention is to provide a non-pixel region N of a color filter used in a bead dispersed type color liquid crystal display panel.
By improving the height difference of the bead spacers 3 dispersed in the pixel region I and the non-pixel region N, and a non-uniform gap is generated in the liquid crystal sealed cells 17 of the assembled color liquid crystal display panel, This is to prevent white spots from appearing on the display.

[0021]

The present invention provides a transparent substrate 11.
A pixel region I and a light-shielding non-pixel region N surrounding the pixel region I are formed as a solid light-shielding pattern 20. The pixel region I extends from the pixel region I to the end of the light-shielding pattern 20 of the non-pixel region N. Colored layer 1 formed by patterning
The outermost end of 2 is patterned so as to slightly overlap the end of the light-shielding pattern 20, and the transparent overcoat layer 14 is formed in a flat shape over the entire surface of the pixel region I and the non-pixel region N. It is a color filter for liquid crystal display characterized in that it is formed.

[0022]

EXAMPLE FIG. 1 shows a color filter for liquid crystal display of the present invention.
A detailed description will be given according to an embodiment shown in (a) to (c) and FIG.

FIG. 1A is a schematic side sectional view of the liquid crystal display color filter in the embodiment, taken along line XX, and FIG. 1B is a partial schematic view of the liquid crystal display color filter in the embodiment. FIG. 1C is a plan view of the entire color filter for liquid crystal display in one embodiment.

As shown in FIG. 1 (a), the liquid crystal display color filter of the above-described embodiment has a pigment-dispersed photoresist, a printing ink, and a dyeing property on a transparent substrate 11 such as a glass substrate or a plastic substrate. A large number of color pixels R, G, B for color display are regularly arranged by a color coloring layer 12 having a colored pattern formed of a resin, an inorganic material multilayer film or the like. The pixel pitch Pi of each color pixel R, G, B is
The size is appropriately set depending on the screen size of the liquid crystal display panel using the color filter for liquid crystal display.
It is either 300 μm.

Below the color coloring layer 12, light-shielding black in the form of, for example, an orthogonal lattice (or a mesh shape such as a honeycomb shape (not shown)) is provided at the adjacent boundary portion of each pixel R, G, B. The matrix 13 (the width Di of the image area of the matrix 13 is appropriately set according to the screen size of a liquid crystal display panel using a liquid crystal display color filter, for example, 10 to 50 μm at maximum) is a black or dark pigment. A pattern is formed by a dispersion type photoresist, a printing ink, or a black or dark dye and a dyeing resin.

As shown in FIGS. 1 (b) and 1 (c),
Each pixel (R, G, B) having a rectangular shape (or a mesh shape such as a honeycomb shape) surrounded by the light-shielding black matrix 13 in the shape of a rectangular lattice, and one of the pixels R, G, B is formed in a pattern on the adjacent boundary portion. Light-shielding black matrix 13
And form a rectangular pixel region I.

Outside the pixel area I, a light-shielding non-pixel area N (area N) is formed so as to continuously surround the pixel area I.
The width n is appropriately set depending on the screen size of a liquid crystal display panel using a liquid crystal display color filter, for example, a maximum of 500 to 5000 μm), but a black or dark pigment dispersion photoresist or printing ink, or A pattern is formed with a black or dark dye and a dyeable resin.

In the present invention, the pixel region I is a pixel region which is substantially used in the color liquid crystal display, and the non-pixel region is provided outside the pixel region I for shading. Area.

The light-shielding non-pixel region N is shown in FIG.
As shown in (c), a black or dark color pigment-dispersed photoresist or printing ink, or a black or dark color dye and a dyeing resin, etc., gives a solid film thickness t = 0.4. ~
It is formed as an opaque light-shielding pattern 20 with a thickness of less than 0.6 or a thickness of 0.6 to 0.8 μm or more.

FIG. 2 is a schematic sectional side view of the XX portion of a color liquid crystal display panel assembled using the color filter for liquid crystal display of the above-mentioned embodiment, which shows the first substrate A and the first substrate A described in the conventional example. A second substrate B formed by providing the overcoat layer 14 and the transparent electrode film 15 described in the conventional example on the color coloring layer 12 of the color filter for liquid crystal display is overlapped with facing each other. The transparent bead spacers 3 having a uniform particle size of 2r are dispersed and applied in the liquid crystal encapsulation cells 17 formed between the spaced-apart facings, and then the liquid crystal L is encapsulated to form the first substrate A and the second substrate B. Around the edge of
As described in the conventional example, the joint sealing material 18 such as an adhesive is used.
It is the one that is joined and sealed in.

As shown in FIG. 2, the light-shielding pattern 20 forming the non-pixel region N formed on the second substrate B.
Is a solid pattern formed so as to surround the pixel region I, and the outermost end of the color coloring layer 12 formed in the pixel region I slightly overlaps the upper surface of the end of the light shielding pattern 20. Is coated so that

From the upper surface of the color coloring layer 12 which is formed over the upper surfaces of the end portions of the light shielding pattern 20 of the pixel area I and the non-pixel area N, almost the entire surface of the pixel area I and the non-pixel area N is covered. Solid overcoat layer 1
4 is flatly patterned so that its surface exhibits a planar state.

The pattern is formed such that the outermost end of the color coloring layer 12 patterned in the pixel region I slightly overlaps the end of the light shielding pattern 20 in the non-image area N. Therefore, when the overcoat layer 14 is uniformly formed on the entire surface of the color coloring layer 12 over the image area I and the non-image area N, the overcoat layer 14 is The surface is formed flat without a height difference (gap) at the boundary between the image area I and the non-image area N.

As shown in FIG. 2, the transparent bead spacers 3 are dispersed in the liquid crystal encapsulating cells 17 formed on the inner surfaces of the first and second substrates A and B, which are opposed to each other and overlap each other. The liquid crystal L is enclosed after the application.

The transparent bead spacer 3 to be used is, for example, a transparent bead made of glass or resin having a uniform diameter of 5 μm or 4 to 8 μm, and a maximum particle diameter of 2
r is selected according to the distance between the first substrate A and the second substrate B that form the liquid crystal sealed cell 17.

When the transparent bead spacers 3 are dispersed and applied on the inner surfaces of the first and second substrates A and B which face each other and are spaced apart from each other and the liquid crystal L is enclosed, one or a plurality of transparent beads are provided. The spacer 3 is formed on the transparent overcoat layer 14 that is planarly covered at substantially the same height from the pixel region I to the non-pixel region N (the transparent conductive film 15 is formed on the upper surface of the overcoat layer 14). ) Is distributed in a single layer.

The height difference ΔT (gap) between the image area I and the non-image area N of the spacers 3 which are dispersedly arranged is suppressed to about ± 0.5 μm or less, and each of the bead spacers 3 is almost the same. When the same height is maintained and the thickness of the liquid crystal layer (the gap between the liquid crystal filled cells 17) is, for example, 4 μm, 5 μm and 8 μm in diameter, the bead spacers 3 are 4 ± 0.5 μm and 5 ± 5 μm, respectively.
It falls within the range of 0.5 μm and 8 ± 0.5 μm.

The liquid crystal display color filter of the present invention will be described in detail with reference to other embodiments shown in FIGS. 3 (a) to 3 (c) and FIG.

FIG. 3A is a schematic side sectional view of a color filter for liquid crystal display of another embodiment taken along line XX.
FIG. 3 (b) is a partial schematic plan view of a liquid crystal display color filter in another embodiment, and FIG. 3 (c) is an overall plan view of a liquid crystal display color filter in another embodiment.

As shown in FIG. 3 (a), the color filter for liquid crystal display of the other embodiment described above has a pigment-dispersed photoresist, a printing ink, and a dyeing property on a transparent substrate 11 such as a glass substrate or a plastic substrate. A large number of color pixels R, G, and B (pixel pitch Pi) for color display are regularly arranged by the color coloring layer 12 having a coloring pattern formed of a resin, an inorganic material multilayer film, or the like.

Under the color coloring layer 12, a black or dark pigment dispersion photoresist or printing ink, a black ink or a black ink is formed at the adjacent boundary portion of each pixel R, G, B. A dark-colored dye and a dyeing resin, etc., are used to form a stripe-shaped light-shielding black matrix 13 (width Di of the image area).
3B, and as shown in FIGS. 3B and 3C, stripe-shaped pixels R, G, and B surrounded by the light-shielding black matrix 13 and one of each pixel are formed. A rectangular pixel region I is formed by the light-shielding black matrix 13 formed in a pattern on the adjacent boundary portion, and an outer light-shielding property is formed outside the pixel region I so as to continuously surround the pixel region I. The non-pixel region N (width n of the region N) is formed in a solid pattern by a black or dark pigment dispersed photoresist or printing ink, or a black or dark dye and a dyeing resin. ing.

In the present invention, the pixel region I is a pixel region that is substantially used in the color liquid crystal display, and the light-shielding non-pixel region N is for light shielding outside the pixel region I. This is the area provided.

The light-shielding non-pixel region N is shown in FIG.
As shown in (c), the film thickness t = 0.4 to 0.6 μm due to a black or dark pigment dispersion photoresist or printing ink, or a black or dark dye and a dyeing resin.
The light-shielding pattern 20 is formed in a solid shape with a thickness of less than 0.6 μm or 0.8 μm or more.

FIG. 4 is a schematic cross-sectional side view of a color liquid crystal display panel assembled using the color filter for liquid crystal display of the above-mentioned other embodiment, showing the first substrate A described in the conventional example. And a second substrate B formed by providing the overcoat layer 14 and the transparent electrode film 15 described in the conventional example on the color colored layer 12 of the color filter for liquid crystal display shown in FIG. Then, the transparent bead spacers 3 having a uniform particle size of 2r are dispersed and applied in the liquid crystal encapsulation cells 17 formed so as to be superposed and separated from each other, and then the liquid crystal L is encapsulated to form the first substrate A and The peripheral edge portion of the second substrate B is bonded and sealed with a bonding sealing material 18 such as an adhesive as described in the conventional example.

As shown in FIG. 4, the light-shielding pattern 20 forming the non-pixel region N formed on the second substrate B.
Is a pattern formed in a solid shape, and the outermost end of the color coloring layer 12 formed in the pixel region I is covered so as to slightly overlap the end of the light shielding pattern 20. There is.

From the upper surface of the color coloring layer 12 formed over the end portions of the light-shielding pattern 20 of the pixel region I and the non-pixel region N, the entire area of the pixel region I and the non-pixel region N is covered. Transparent overcoat layer 14
The surface is flatly patterned so as to exhibit a planar state.

The pattern is formed such that the outermost end of the color coloring layer 12 patterned in the pixel region I slightly overlaps the end of the light-shielding pattern 20 in the non-image area N. Therefore, when the overcoat layer 14 is uniformly formed on the entire surface of the color coloring layer 12 over the image area I and the non-image area N, the overcoat layer 14 is The surface is formed flat without a height difference (gap) at the boundary between the image area I and the non-image area N.

When the transparent bead spacers 3 are dispersed and applied to the liquid crystal encapsulating cells 17 formed on the opposing inner surfaces of the first substrate A and the second substrate B which are spaced apart and opposed to each other and are overlapped with each other, the liquid crystal L is encapsulated. One or a plurality of transparent bead spacers 3 are formed on the transparent overcoat layer 14 which is planarly covered at substantially the same height from the pixel region I to the non-pixel region N (on the upper surface of the overcoat layer 14). Between the pixel region I and the non-pixel region N of the transparent bead spacers 3 which are dispersed and arranged in a single layer state in the transparent conductive film 15 and are arranged in the pixel region I and the non-pixel region N, respectively. The height difference (gap) is suppressed to about ± 0.5 μm or less, the bead spacers 3 maintain substantially the same height, and the thickness of the liquid crystal layer (gap of the liquid crystal filled cell 17) is, for example, each diameter. 4μ , 5 [mu] m, when using the bead spacers 3 of 8 [mu] m, respectively 4 ± 0.5μm, 5 ±
It falls within the range of 0.5 μm and 8 ± 0.5 μm.

[0049]

In the color filter for liquid crystal display of the present invention, the color coloring layer 1 is formed by patterning on the transparent substrate 11 from the pixel region I to the non-pixel region N from the end of the light-shielding pattern 20.
Since the outermost end portion of 2 is formed so as to slightly overlap the end portion of the light-shielding pattern 20, it is formed on the entire surface from the color coloring layer 12 to the pixel region I and the non-pixel region N. Formed transparent overcoat layer 14
Has a flat surface.

As described above, the color filter for liquid crystal display of the present invention has the flat overcoat layer 14 having no height difference at the boundary between the image area I and the non-image area N. When the second substrate B is formed by using this color filter for liquid crystal display, and is overlapped with the first substrate A so as to be spaced apart and faced, and the liquid crystal L is sealed in the liquid crystal sealed cell 17 formed so as to be spaced apart and faced, , Dispersed transparent bead spacers 3
Is on the black matrix 13 and the light-shielding pattern 2
0 and the overcoat layer 14 that holds the same surface (actually, the transparent conductive film 15 formed on the overcoat layer 14) can be dispersedly arranged on the upper surface to hold the same height. The height difference ΔT at the boundary between I and the non-pixel region N can be eliminated.

Therefore, the second substrate A (transparent substrate 11)
Can be avoided, and when used as a display liquid crystal display panel, it is possible to eliminate display defects such as white spots that are likely to occur at the boundary between the pixel region I and the non-pixel region N, and the light shielding pattern 20 (or Even if the film thickness t of the black matrix 13 and the light shielding pattern 20) is set to a thick film of 0.6 to 0.8 μm or more, the height difference ΔT at the boundary between the pixel region I and the non-pixel region N. Can be avoided. Alternatively, it is possible to reduce the generated numerical value of the height difference ΔT as compared with the conventional one, and it is possible to obtain a liquid crystal color display panel which is clear and has good image quality and high contrast.

[0052]

The color filter for liquid crystal display of the present invention comprises:
A color filter used for a bead-dispersed liquid crystal display panel, which eliminates a display difference such as white spots by eliminating a height difference of a bead spacer which is likely to occur at a boundary portion between a pixel region I and a non-pixel region N. It is effective as a color filter for producing a liquid crystal display panel which is clear and has good image quality and contrast.

[Brief description of drawings]

FIG. 1A is a sectional view taken along line XX in an embodiment of the color filter for liquid crystal display of the present invention, and FIG. 1B is a partial plan view of the embodiment of the liquid crystal color filter of the present invention. , (C) are overall plan views of an embodiment of the liquid crystal color filter of the present invention.

FIG. 2 is an X-section of a color liquid crystal display panel assembled using the color filter for liquid crystal display of one embodiment of the present invention.
It is a X section side sectional view.

FIG. 3A is a sectional view taken along line XX of another embodiment of the color filter for liquid crystal display of the present invention, and FIG. 3B is a partial plan view of the other embodiment of the liquid crystal color filter of the present invention. FIG. 3C is an overall plan view of another embodiment of the liquid crystal color filter of the present invention.

FIG. 4 is an X of a color liquid crystal display panel assembled by using a color filter for liquid crystal display according to another embodiment of the present invention.
It is a -X partial side sectional view.

FIG. 5 is a sectional view taken along line XX of a liquid crystal color display panel assembled using a conventional color filter for liquid crystal display.

6A is a cross-sectional view of a conventional liquid crystal display color filter taken along the line XX, FIG. 6B is a partial plan view of a conventional liquid crystal color filter, and FIG. FIG. 3 is an overall plan view of an example of a liquid crystal color filter.

FIG. 7 is a sectional view taken along line XX of a liquid crystal color display panel assembled by using another conventional color filter for liquid crystal display.

FIG. 8A is a cross-sectional view of another conventional liquid crystal display color filter taken along line XX, and FIG. 8B is a partial plan view of another conventional liquid crystal color filter; FIG. 3C is an overall plan view of another conventional liquid crystal color filter.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Transparent substrate 2 ... Transparent electrode film 3 ... Bead spacer 11 ... Transparent substrate 12 ... Color coloring layer 13 ... Black matrix 14 ... Overcoat layer
15 ... Transparent electrode film 16 ... Shading layer 17 ... Liquid crystal encapsulating cell 18 ... Bonding sealant 20 ... Shading pattern A ... First substrate B ... Second substrate L ... Liquid crystal I ... Pixel region N ... Non-pixel region W ... White spots Generation area R ... Red pixel G ... Green pixel B ... Blue pixel

Claims (3)

[Claims] 1. A pixel region I and a light-shielding non-pixel region N surrounding the pixel region I are formed as a solid light-shielding pattern 20 on a transparent substrate 11, and the pixel region I to the non-pixel region N are formed. The outermost end of the colored layer 12 that is patterned over the end of the light-shielding pattern 20 is patterned so as to slightly overlap the end of the light-shielding pattern 20, and the pixel region I and non-pixels are formed. A color filter for liquid crystal display, wherein a transparent overcoat layer 14 is formed in a flat shape over the entire surface of a region N. 2. The light-shielding pattern 20 has a film thickness t = 0.
The color filter for liquid crystal display according to claim 1, having a thickness of 6 to 0.8 μm or more. 3. The color filter for liquid crystal display according to claim 1, wherein a transparent electrode film 15 is provided on the overcoat layer 14.