JPH0497123A - Color liquid crystal display device - Google Patents

Abstract

PURPOSE:To make a gradational display by dividing display electrodes into plural parts, and applying voltages to the respective electrodes individually and varying the voltage application area of the display electrodes. CONSTITUTION:A 1st segment electrode 53 and a 2nd segment electrode 56 consists of a red electrode 53r (56r), a green electrode 53g (56g), and a blue electrode 53b (56b). The electrodes 56r, 56g, and 56b are formed in areas where the 1st segment electrode 53 is not formed among areas corresponding to filters R, G, and B. The respective electrodes 53r, 53g, and 53b, and 56r, 56g, and 56b are connected mutually by transparent electrodes 63r, 63g, and 63b, and 66r, 66g, and 66b. Then the voltage application area of the display electrode is varied stepwise to vary the quantity of transmitted light in the display area in steps. Consequently, the same color can be displayed with plural gradations.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a segment type color liquid crystal display device that displays predetermined characters, figures, etc. in color.

BACKGROUND OF THE INVENTION FIG. 7 is a plan view of a conventional segment type liquid crystal display device 230. A plurality of segment electrodes 233 are arranged on the liquid crystal display device 230 so as to form the character "day". Further, a color filter colored red, for example, is provided in the area A1, a green color filter is provided in the area A2, and a blue color filter is provided in the areas A3 to A5.

FIG. 8 is a cross-sectional view of the liquid crystal display device 230.

The liquid crystal layer 237 includes a transparent glass substrate 231a,
231b, and is sealed with a sealing resin 238. A plurality of segment electrodes 233 are formed on the surface of the glass substrate 231a on the liquid crystal layer 237 side, and an alignment film 234a is further formed on the surface.

On the other hand, a plurality of common electrodes 232 are formed on the surface of the glass substrate 231b on the liquid crystal layer 237 side, and an alignment film 234b is further formed on the surface. Glass substrate 23
On the surface of 1a, 231b opposite to the liquid crystal layer 237,
Polarizing plates 235a and 235b are provided, respectively.

The aforementioned red, green, and blue color filters 236 are formed on the polarizing plate 235a in a region including the segment electrodes 233 by a printing method or the like.

FIG. 9 is a sectional view showing another configuration of the liquid crystal display device 230. Here, in order to eliminate color shift due to parallax in the display area, the color filter 236 is formed on the common electrode 232 by an electrodeposition method, a printing method, or the like.

In such a liquid crystal display device 230, for example, by applying a voltage between the common electrode 232 and the electrode corresponding to the display area to be displayed among the segment electrodes 233 in the area Al, the voltage is applied. Light passes through the liquid crystal layer corresponding to the segment electrodes, and a red display can be performed. In other areas A2 to A5, green display and blue display can be performed using the same method.

Further, in the liquid crystal display device disclosed in USP-3840695, color filters are arranged on the front and rear surfaces of the liquid crystal display element, and only one color can be displayed in one unit area.

In general, since liquid crystals have wavelength dependence, the light-shielding property of the liquid crystal display device 230 is not perfect and cannot block light over the entire visible wavelength range. Therefore, in the liquid crystal display device 230 described above, positive display (When the background color is white and the display color is black), light passes through the liquid crystal layer 237 even when no voltage is applied to the liquid crystal layer 237, and the area A1 in FIG. 7 described above is colored red. However, since it is visible as being distinguished from other parts, there is a problem that the display quality of the liquid crystal display device 230 deteriorates. Also, negative display (
If the background color is black and the display color is white), the liquid crystal layer 237
Since the light-shielding property of the color filter 236 is not perfect, the shape of the color filter 236 can be seen through even when no voltage is applied, resulting in a problem of deterioration of display quality.

In addition, the display color of the display area is determined by the color type of the color filter during manufacturing of the liquid crystal display device, so
It is not possible to display the same display area in different colors, resulting in poor display diversity and versatility.

In order to solve the above-mentioned problems, a liquid crystal display device using a fine band-shaped color filter was developed in Japanese Patent Laid-Open No. 60-26092.
1. Japanese Patent Publication No. 61-239220, Japanese Patent Application Publication No. 62-0919
It is disclosed in 17.

FIG. 10 is a cross-sectional view of a segment type color liquid crystal display device 301 using a band-shaped color filter. A color filter 305 is provided over almost the entire surface of the transparent glass substrate 304a by a method such as a printing method or an electrode coloring method.
A plurality of segment electrodes 306 are formed on the display area 5 corresponding to a predetermined display area. The color filter 305 is
For example, it is formed in a band shape in a direction parallel to the paper surface of Figure 10,
For example, a plurality of three types of filters, red filters, green filters, and blue filters, are arranged in a predetermined order in a direction perpendicular to the plane of FIG. 10. The segment electrode 306 is composed of a red electrode, a green electrode, and a blue electrode t8i corresponding to the red filter, green filter, and blue filter, respectively.

A plurality of common electrodes 308 are formed on one surface of the light-transmitting glass substrate 304b over an area including the display area corresponding to the segment electrodes 306, and an alignment film 307b is further formed on the surface. Glass substrate 304
a and 304b are arranged such that the surfaces on which the alignment films 307a and 307b are formed face each other. The twisted nematic liquid crystal layer 309 is a glass substrate 304a.

304b and is sealed with a sealing resin 310. Further, on the surfaces of the glass substrates 304a and 304b opposite to the liquid crystal layer 309, polarizing plates 31' are respectively provided.
l, :312 is provided.

Here, the polarizing plates 311 and 312 are arranged so as to form orthogonal Nicols, and when no voltage is applied, light is directed to the liquid crystal, 11309
Of the three t8ii constituting the segment electrode 306, which performs a so-called normally black display by not transmitting the t8ii, the desired ! By applying a voltage to the pole, the segment tf! A desired color is displayed in the display area corresponding to 306. For example, if voltage is applied only to the red electrode, red will be displayed in the display area, and if voltage is applied to the red and green electrodes at the same time, yellow will be displayed due to the mixture of red and green light. Can be displayed. Furthermore, white display can also be performed by simultaneously applying voltage to all the electrodes: the red electrode, the green electrode, and the blue electrode.

Problems to be Solved by the Invention The color liquid crystal display device 301 described above has transparent electrodes formed corresponding to three color filters, for example, a red filter, a green filter, and a blue color filter, respectively, formed within a predetermined display area. By selecting the transparent electrode to which voltage is applied, up to eight colors can be displayed.

However, each display color is displayed only in the same tone, and the types of display colors are limited, resulting in poor display diversity.

As a color liquid crystal display device that realizes color gradation (shade) display, by using a drive circuit that can control the amount of voltage applied to the liquid crystal layer or the voltage application time,
A color liquid crystal display device that performs gradation display by changing the light transmittance of a liquid crystal layer is considered. In this color liquid crystal display device, it is necessary to develop a dedicated drive circuit for controlling the amount of applied voltage or controlling the voltage application time.

In addition, the transparent electrode formed corresponding to each color filter is further divided into multiple parts, and the divided electrodes are driven independently to enable gradation display by changing the voltage application area of the transparent electrode. Color liquid crystal display devices have been proposed.

FIG. 11 is a sectional view showing the configuration of a color liquid crystal display device 101 capable of displaying gradations. The color liquid crystal display device 101 has a pair of transparent substrates 102a and 102b,
A segment electrode 100 is formed on one surface of the transparent substrate 102a in a region corresponding to the shape to be displayed. The segment electrode 100 includes three color filters 10, which will be described later.
Electric f! corresponding to 5R105G and 105B respectively. 10
Consists of 0R, 100G, and 100B. 1ilo.

R, 100G, 100B are the first and second segments t & 103R, 104R: 103G, 104
G, 103B, 104B (when using generic names, subscripts R, G
, B is omitted).

A color filter 105 is formed on the transparent substrate 102a on which the segment tiloo is formed. The color filter 105 is composed of, for example, three color filters formed in a band shape, for example, a red filter 105R1, a green filter 105G, and a blue filter 105B, and a black light shielding layer 105BL provided in the gap between the filters. It is formed over almost the entire surface of one surface of the transparent substrate 102a by a method or the like. An alignment film 106a is formed on the surface of the color filter 105.

A common electrode 107 is formed on one surface of the transparent substrate 102b in a region including at least the segment electrode 100, and an alignment film 106b is further formed on the surface.

The transparent substrates 102a and 102b each have an alignment film 106.
The surfaces on which a and 106b are formed are arranged so as to face each other. The liquid crystal layer 108 is interposed between the transparent substrates 102a and 102b and sealed with a sealant 109. Polarizing plates 110 and 111 are arranged on the surfaces of the transparent substrates 102a and 102b opposite to the liquid crystal layer 108, respectively.

When manufacturing the above-mentioned color liquid crystal display device 101, it is possible to use fine color filters! Since the poles are formed by further dividing them, high-precision processing technology is required, resulting in poor productivity. Also, the first and second segments are connected to poles 103,1
Since the electrodes 04 are formed on the same plane, that is, on the transparent substrate 102a, they must be formed at a certain interval in order to make adjacent electrodes electrically independent (insulated), and the lighting rate (= lighting area 7 This resulted in a decrease in the display area (X100 (%)). If the interval between the first and second segment electrodes 103 and 104 is made as narrow as possible in order to improve the lighting rate, short-circuits and disconnections of the electrodes will occur.
In reality, it was impossible to manufacture.

An object of the present invention is to solve the above technical problems and provide a color liquid crystal display device that can perform gradation display.

Means for Solving the Problems The present invention comprises a pair of light-transmitting substrates provided with a liquid crystal layer in between; a plurality of color selection members each selecting one of the plurality of predetermined colors; and a plurality of color selection members provided on the liquid crystal layer side of the light-transmissive substrate for each of the plurality of color selection members within a predetermined display area. a display electrode having translucency to be formed, the display electrode being divided into a plurality of parts,
This is a color liquid crystal display device characterized in that the voltage application area of the display electrodes is changed by applying a voltage to each electrode individually.

Function According to the present invention, normally black display in which the background color is black can be performed by preventing light from passing through the color liquid crystal display device when no voltage is applied. Here, light can be transmitted through the liquid crystal display device by forming a display electrode corresponding to a predetermined shape and applying a voltage to the display electrode formed corresponding to a color selection member of a desired color. can. This transmitted light is selected as one predetermined color by the color selection member, and thereby the predetermined shapes corresponding to the display electrodes are displayed on the color liquid crystal display device according to the predetermined color.

At this time, voltages are applied to display electrodes formed individually corresponding to multiple types of color selection members, and more interesting colors are displayed by combining multiple types of colors selected by the color selection members. be able to.

In addition, since the color selection member is provided over the entire surface of the light-transmitting substrate, even if there is light leakage from the liquid crystal layer when no voltage is applied to the display electrodes, the color selection member can be applied to the entire surface of the color LCD device. The same color, that is, a color that is a combination of colors selected by each color selection member, is displayed throughout the display, preventing only a portion from being displayed in a different color, and display quality is improved.

In the above-mentioned normally black display, by applying a voltage equal to or higher than a predetermined threshold voltage to the liquid crystal layer, the liquid crystal layer transmits light. , the amount of transmitted light in the display area can be changed.

Therefore, even if the colors are the same, by increasing the amount of transmitted light, a brighter gradation can be achieved, and by decreasing the amount of transmitted light, a darker gradation can be achieved. In this way, the same color can be displayed in a plurality of gradations, the variety of display colors increases, and the diversity of display can be improved.

Embodiment FIG. 1 is a sectional view of a color liquid crystal display device 51 which is an embodiment of the present invention. Color LCD display bag! 51 is a pair of transparent substrates 52a made of glass, plastic, etc.;
52b, and a transparent electrode (first segment electrode) 53 is formed on one surface of the transparent substrate 52a in an area corresponding to a predetermined display area. Further, a color filter 54 is formed on the transparent substrate 52a on which the first segment electrode 53 is formed. The color filter 54 includes, for example, three color filters formed in a band shape, such as a red filter R1, a green filter G, and a blue filter B.
and a black light shielding layer BL provided in the gaps between the filters, and is formed over almost the entire surface of one surface of the transparent substrate 52a by a dyeing method, a printing method, an electrodeposition method, a pigment dispersion method, etc. .

The surface of the color filter 54 is provided with a second segment tt!, which will be described later, by reducing the unevenness of the surface of the color filter 54. 5
A protective film 55 is formed in order to prevent deterioration of the color filter layer 54 and improve the adhesion of the second segment electrode 56 during formation of the second segment electrode 56 .

The protective film 55 is formed using CZ-113 (manufactured by Nissan Chemical Industries, Ltd.) by an offset printing method or the like. Protection III! After forming the transparent conductive film 55, a transparent conductive film (second segment electrode 56) is formed by vapor deposition or the like in the area within the predetermined display area where the first segment 153 is not formed.

Furthermore, an alignment film 57a is formed on the surface.

A transparent $1 (common electrode) 58 is formed on one surface of the transparent substrate 52b in a region including at least the first and second segment electrodes 53, 56, and an alignment film 57b is further formed on the surface thereof. .

The transparent substrates 52a and 52b are provided with alignment films 57a and 5, respectively.
The surfaces 7b formed thereon are arranged so as to face each other. The five liquid crystal layers are interposed between transparent substrates 52a and 52b and sealed with a sealant 60. Transparent substrate 52a, 5
Polarizing plates 61 and 62 are arranged on the surface of 2b opposite to the five liquid crystal layers, respectively. Transparent substrates 52a, 52
b may be a plastic film. Orientation film 57a
.

7b contains polyimide resin (product name rP I QJ
.

Hitachi (manufactured by Hiseisha) was used. The alignment films 57a and 57b are
For example, the transparent substrates 52a, 5 are formed to have a layer thickness of 600 layers.
Between 2b and 2b, rubbing treatment is performed with a nylon thread fabric so that the alignment direction of the liquid crystal molecules is twisted by 90 degrees, for example, to form a levorotatory liquid crystal layer.

If the second segment electrode 56 can be formed on the color filter layer 54 without forming the protective film 55, the protective film 55 may not be formed.

In order to keep the distance between the transparent substrates 52a and 52b constant,
A plastic spacer (not shown) is sandwiched between these substrates. With this spacer, the distance between the substrates is set to, for example, 5 μm. The sealing material 60 for sealing the liquid crystal layer 59 is, for example, epoxy resin (manufactured by Mitsui Toatsu Co., Ltd.). For the liquid crystal layer 59, for example, a phenylcyclohexane mixed liquid crystal is selected. Furthermore, cholesteric nonanoate is added to this liquid crystal layer to impart levorotatory properties.

Furthermore, for the alignment films 57a and 57b, the transparent substrate 52a,
The orientation direction of the liquid crystal molecules is twisted by 90 degrees between 52b,
A rubbing treatment may be performed to form a dextrorotatory liquid crystal layer. In this case, a phenylcyclohexane-based mixed liquid crystal to which CB-15 (manufactured by Merck & Co., Ltd.) is added as a dextrorotatory chiral substance is used for the five liquid crystal layers.

FIG. 2 is a perspective view of a color liquid crystal display device 51. In this embodiment, a case where the color liquid crystal display device 51 is used as a level meter provided in an audio device such as a cassette tape recorder will be described. Color liquid crystal display device 5
1, the letters "L" and "R" and a plurality of rectangular areas serving as display areas are set. The plurality of rectangular areas have first and second segments as poles 53 and 56, respectively.
is located. The letters "LJ" and "R" may be always displayed by pasting a light shielding member formed in a shape corresponding to each letter on the surface of the color liquid crystal display device 51, or alternatively, the letters "LJ" and "R" may be always displayed. The first and second segment electrodes 53 and 56 formed in shapes corresponding to characters may be arranged to display the characters in a desired color as necessary.

FIG. 3 is an enlarged plan view of the color filter 54;
The figure is an enlarged sectional view of the vicinity of the color filter 54. In the color liquid crystal display bag 51, the color filter 54, which is a color selection member, is provided over almost the entire surface of the transparent substrate 52a. The color filter 54 is formed by arranging red, green, and blue filters in a band shape.

In FIGS. 3 and 4, the red filter is designated by reference numeral R, the green filter is designated by reference numeral G, and the blue filter is designated by reference numeral B. The sizes of filters R, G, and B are fine; It is so large that it cannot be seen with the naked eye.

As an example, a band-shaped filter R with a width L3=100 μm,
G and B are used, and the spacing L4 between each filter is 10 μm.
selected. A black light-shielding layer BL made of chromium (Cr), black pigment, or the like is formed between each filter.

FIG. 5 is an enlarged plan view of the first and second segment poles 5356. As mentioned above, strip-shaped color filters R, G, and B of three colors red, green, and blue are arranged on the transparent substrate 52a, and the present invention sequentially connects segment electrodes corresponding to the color filters of the same color. This is a color liquid crystal display device 51 in which transparent electrodes as signal lines are arranged for connection.

The first segment electrode 53 consists of a red electrode 53r, a green electrode 5Bg, and a blue electrode 53b.

The poles 53r, 53g, 53゛b are respectively filter R
, G, and B, and each electrode 53r, 53g is formed in approximately 1/2 of the area corresponding to the electrodes 53r, 53g.

53b is a transparent pole 63r as a signal line.

63g and 63b, respectively.

The second segment electrode 56 includes a red electrode 56r, a green electrode 56g, and a blue electrode 56b. The pole 5
6r, 56g, and 56b are filters R, G, and B, respectively.
Of the area corresponding to
is formed in the area where the electrodes 56r and 5 are not formed.
6g, 56b are transparent electrodes 66r as signal lines;
66g and 66b, respectively. fI
53r, 53g, 53b; 56r, 56g, 56b
is selected to have a width of 50 μm and a length of 330 μm, for example.

Therefore, the first and second segment electrodes 5356 are each formed to be offset by 50 μm in the width direction.

Using this connection method, red, yellow, green,
Seven colors, light blue (cyan), blue, white, and pink (magenta), can be displayed within a desired display area. In addition, even if the colors are the same, there are cases in which a voltage is applied to only one of the first and second segment electrodes 53.56, and a case in which a voltage is applied to both the first and second segment electrodes 53.56. Since the brightness gradation is different depending on the case, two types of gradation display can be performed.

Therefore, a maximum of 27 colors can be displayed.

FIG. 6 is a block diagram showing the electrical configuration of the color liquid crystal display device 51. A backlight 64 is arranged on the opposite side of the polarizing plate 62 from the liquid crystal element, and the light from the backlight 64 is transmitted/blocked using the liquid crystal element.
The color liquid crystal display device 51 displays a plurality of colors as described below.

The liquid crystal element is driven by a liquid crystal element drive circuit 67. The liquid crystal element drive circuit 67 applies a voltage to the common electrode 58 via the signal line 111 based on the display control signal from the display control circuit 68, and applies a voltage to the selected first segment electrode 53 via the signal line group l112. In addition, a voltage is applied to the selected second segment electrode 56 via the signal line group 113.6 In the color liquid crystal display device 51 described above, so-called normally white display and normally black display are used. Explain when to do this. Here, the liquid crystal molecules of the liquid crystal layer 59 are such that the molecules closest to the transparent substrate 52b are aligned in a direction perpendicular to the plane of the paper in FIG. It is assumed that the liquid crystal molecules closest to 52a are aligned in a direction parallel to the plane of the paper in FIG.

■Normally white display Normally white display means that when no voltage is applied, light passes through the liquid crystal layer 59 so that, for example, the background color is white, and the liquid crystal layer in the area corresponding to the shape to be displayed is This is a display method that blocks light and displays a desired shape by applying voltage to five liquid crystal molecules to change the alignment state of the liquid crystal molecules. Therefore, so that the polarization directions of the polarizing plates 61 and 62 are crossed Nicols, for example, the polarizing direction of the polarizing plate 62 is set perpendicular to the plane of FIG. 1, and the polarizing direction of the polarizing plate 61 is set parallel to the plane of FIG. 1. Arrange it so that As a result, the light transmitted through the polarizing plate 62 is twisted by 90 degrees by the five liquid crystal layers, and can be transmitted through the polarizing plate 61. At this time, the color filter 54 is formed by fine rectangular filters R, G, and B as shown in FIG. becomes. That is, when no voltage is applied, white is displayed as the background color on the color liquid crystal display [51].

The liquid crystal molecules in the five liquid crystal layers to which a voltage is applied are aligned in the direction of the electric field. Therefore, the linearly polarized light in the direction perpendicular to the plane of FIG. 1 that has passed through the light leakage plate 61 passes through the liquid crystal layer 59 in an almost unchanged polarized state. Here, since the polarization direction of the polarizing plate 61 is parallel to the plane of FIG. 1, the light that has passed through the five liquid crystal layers cannot pass through the polarizing plate 61.

The five liquid crystal layers have voltage applied (○N)/non-voltage applied (OFF>
In Table 1 below, which acts as a light shade/evening,
segment! The relationship between the ○N10 FF state of the pole, the function of the liquid crystal layer as an optical shutter, and the displayed color is shown.

In Table 1, "○" indicates the oven state of the optical shutter, and "." indicates the closed state of the optical shutter.

(Margins below) Table 1 - Normally black display Normally black display is a display in which the foreground color is black by preventing light from passing through the liquid crystal layer 59 when no voltage is applied, and a voltage is applied to the liquid crystal layer 59. This is a display method in which a desired shape is displayed by transmitting light by applying an electric current. Therefore, the polarizing plate 6162 is arranged so that the polarization direction is parallel Nicols. That is, the polarizing plates 61 and 62 may be arranged so that the polarization direction is perpendicular to the plane of the first drawing or parallel to the plane of the first drawing. As a result, when no voltage is applied, light cannot pass through the five liquid crystal layers, so that the color liquid crystal display device 51 displays black as the background color.

The liquid crystal layer 5 functions as a light shutter by applying/not applying a voltage as in the above-described normally white display. Table 2 below shows the segment IC pole ○N10F.
The relationship between the F state, the function of the liquid crystal layer as an optical shutter, and the displayed color is shown.

In Table 2, "rO" indicates the open state of the optical shutter, and "." indicates the closed state of the optical shutter.

(Margin below) Table 2 Regardless of whether normally white display or normally black display is performed, there is a case where voltage is applied to both the first and second segment electrodes 53 and 56, and a case where voltage is applied to both the first and second segment electrodes 53 and 56. When a voltage is applied to either one of the segment electrodes 53 or 56, the voltage application area in the display region changes.

This makes it possible to change the amount of transmitted light in the display area, and even if the color is the same, the brightness [1
can display different colors.

As described above, according to this embodiment, in addition to the 8-color display, 27-color display can be performed by changing the brightness gradation. This improves display diversity and allows the color liquid crystal display device 51 to display rich colors.

In this embodiment, the color filters are formed in a band shape, but the color filters formed in a rectangular shape may be arranged in a matrix or a mosaic shape. When a plurality of different color filters are combined to display different colors, the degree of mixing and clarity of the displayed colors when viewed visually is significantly improved, and the display quality is improved.

Since the first and second segment electrodes 53 and 56 are formed through the color filter 54, a structure in which there is no dot space and the electrodes are electrically independent is possible. This makes it possible to realize a color liquid crystal display device 51 with a good lighting rate.

Further, a sufficient distance can be provided between adjacent electrodes on the same plane, and short-circuiting and disconnection of the electrodes can be prevented.

In this example, twisted nematic liquid crystal in which the twist angle of the liquid crystal molecules is 90° is used as the five liquid crystal layers, but super twisted nematic liquid crystal in which the twist angle of the liquid crystal molecules is 180° to 270° may also be used. .

Effects of the Invention As described above, according to the present invention, in a normally black display, for example, by applying a voltage equal to or higher than a predetermined threshold voltage to the liquid crystal layer, the liquid crystal layer transmits light. By changing the voltage application area of the display electrode in steps, the amount of transmitted light in the display area can be changed in steps. Therefore, even if the colors are the same, a brighter tone can be achieved by increasing the amount of transmitted light, and a darker tone can be achieved by decreasing the amount of transmitted light. In this way, the same color can be displayed in a plurality of gradations, the variety of display colors increases, and the diversity of display can be improved.

[Brief explanation of drawings]

FIG. 1 shows a color liquid crystal display device 5 which is an embodiment of the present invention.
2 is a perspective view of the color liquid crystal display device 51, FIG. 3 is an enlarged plan view of the color filter 54, FIG. 4 is an enlarged sectional view of the vicinity of the color filter 54, and FIG. 5 is a perspective view of the color liquid crystal display device 51. Enlarged plan view of second segment electrode 53, 56, 6th
7 is a plan view of a conventional liquid crystal display device 230, FIG. 8 and FIG. 9 are cross-sectional views of a conventional liquid crystal display device 230, and FIG. The figure is a sectional view of a conventional color liquid crystal display device 301, and FIG. 11 is a sectional view of a conventional color liquid crystal display device 101 capable of displaying gradations. 51...Color liquid crystal display device, 52a, 52b...
Transparent substrate, 53...First segment t8i, 54 Color filter, 56...Second segment electrode, 58.Common electrode, five...Liquid crystal layer, 67...Liquid crystal element drive circuit, 68...Display Control circuit agent Patent attorney Number of strokes

Claims (1)

[Scope of Claims] A pair of light-transmitting substrates provided with a liquid crystal layer sandwiched therebetween; and a light-transmitting substrate provided over almost the entire surface of one surface of the light-transmitting substrates on the liquid crystal layer side, and having a color selected from among a plurality of colors that predetermine transmitted light. a plurality of color selection members each selecting one of the colors; and a plurality of color selection members provided on the liquid crystal layer side of the translucent substrate, and a translucency formed for each of the plurality of color selection members within a predetermined display area. a display electrode having a plurality of parts, the display electrode being divided into a plurality of parts;
A color liquid crystal display device characterized in that a voltage application area of a display electrode is changed by applying a voltage to each electrode individually.