JPH0455826A - Color liquid crystal display device - Google Patents

Abstract

PURPOSE:To diversify displaying by including plural color selecting members and display electrodes in a 1st liquid crystal element and including transparent electrodes in a 2nd liquid crystal element. CONSTITUTION:The liquid crystal element 22 for color display have a pair of transparent substrates 24a, 24b and a color filter layer 25 is provided over nearly the entire part of one surface of the transparent substrate 24a. Plural segment electrodes 26 having light transparency are formed on the color filter layer 25. Further, an oriented film 27a is formed on the color filter layer 25 formed with the segment electrodes 26. The liquid crystal element 23 for compensation has transparent substrates 31a, 31b and the transparent electrodes 37, 38 are formed on one surface of the transparent substrates 31a, 31b respectively over nearly the entire surface thereof. Further, oriented films 32a 32b are respectively formed on the transparent electrodes 37, 38. The normally black display and the normally white display are executed in this way and further, the display colors change if the display mode is change and, therefore, the displaying is diversified.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a color liquid crystal display device that can switch between two display modes: normally black display and normally white display.

Conventional technology Japanese Patent Application Laid-Open No. 60-260921. Japanese Patent Publication No. 61-239220
, Japanese Patent Laid-Open No. 62-091917 discloses a segment type color liquid crystal display device in which a stripe-shaped color filter is formed over almost the entire display screen.

In this color liquid crystal display device, it is possible to select either normally white display or normally black display by changing the arrangement of the polarizing plate, but in the case of normally black display, the incident light is The optical rotation dispersion phenomenon inside the liquid crystal layer causes elliptically polarized light, which causes leakage light that passes through the liquid crystal layer even when no voltage is applied, reducing the contrast of the display screen.

As a solution to the above-mentioned decrease in contrast, a two-layer liquid crystal display device was developed.
528. Japanese Patent Publication No. 63-234225).

The two-layer liquid crystal display device disclosed herein is constructed by stacking two liquid crystal elements in which liquid crystal molecules are aligned in a twisted nematic manner.One liquid crystal display element is a display liquid crystal element, and the other liquid crystal element is a display liquid crystal element. The element is a compensating liquid crystal element for returning the elliptically polarized light to linearly polarized light.

FIG. 11 is a sectional view of a conventional two-layer liquid crystal display device 1. As shown in FIG. The liquid crystal display device 1 includes a display liquid crystal element 2 and a compensation liquid crystal element 3. The display liquid crystal element 2 includes a pair of transparent substrates 4a and 4b made of glass, acrylic, or the like.
A color filter 5 is provided on one surface of the transparent substrate 4a.
is provided over almost the entire surface, and the color filter 5
A plurality of segment electrodes 8i6 having translucency are formed on the top. Furthermore, an alignment film 7a is formed on the segment electrodes 6 and the color filters 5. The color filter 5 consists of, for example, band-shaped three-color filters extending parallel to the plane of FIG. 11, such as a red filter, a green filter, and a blue filter.

A plurality of light-transmitting common electrodes 8 are formed on one surface of the transparent substrate 4b, and an orientation [7b] is formed on the transparent substrate 4b on which the common electrodes 8 are formed. The transparent substrates 4a and 4b are arranged so that the surfaces on which the orientations Jlj7a and 7b are formed face each other, and the twisted nematic liquid crystal 9 is interposed between the transparent substrates 4a and 4b and sealed with a sealing resin 10.

The compensation liquid crystal element 3 has transparent substrates 11a and Ilb made of glass, acrylic, etc.
Orientations 112a and 12b are formed on one surface of the substrate, respectively. The transparent substrates 11a and 11b have an orientation W112a,
The twisted nematic liquid crystal 13 is interposed between the transparent substrates 11a and Ilb, and is sealed with a sealing resin 14.

The display liquid crystal element 2 and the compensation liquid crystal element 3 are connected to a transparent substrate 4.
a and a transparent substrate 11b are stacked so as to overlap, a polarizing plate 15 is arranged on the surface of the transparent substrate 4b opposite to the liquid crystal layer 9, and a polarizing plate 15 is arranged on the surface of the transparent substrate 11a opposite to the liquid crystal layer 13. A polarizing plate 16 is arranged.

The liquid crystal layers 9 and 13 are arranged so that the orientation directions of the liquid crystal molecules closest to each other are perpendicular to each other, and the twist directions of the liquid crystal molecules in the respective liquid crystal layers are opposite to each other. i
The base plates 15 and 16 are arranged so as to form orthogonal Nicols.

Problems to be Solved by the Invention Since segment type color liquid crystal display devices display segments, they can only display predetermined colors and display images (shapes), resulting in poor display diversity.

Furthermore, even in the two-layer type liquid crystal display device shown in FIG. It was scarce.

Further, the color filter 5 is formed of three color belt-shaped filters (red filter, green filter, blue filter) with widths that cannot be discerned with the naked eye, and the segment electrodes 6
Although it is possible to display the same display image in different colors by forming them corresponding to each filter, when displaying a combination of multiple colors, the mixing degree and There is a problem that the clarity of colors decreases and the display quality deteriorates.

An object of the present invention is to provide a color liquid crystal display device in which display diversity and display quality in color display are improved. In a color liquid crystal display device in which first and second liquid crystal elements are laminated, each having a light-transmitting substrate, the first liquid crystal element is provided over the entire surface of the light-transmitting substrate in the thickness direction, and has a transparent substrate. a plurality of color selection members each selecting one of a plurality of predetermined colors of light; and a predetermined color provided in a display area on the liquid crystal layer side of the transparent light substrate and to be displayed in the display area. a display electrode having a translucent property formed in a range corresponding to the plurality of color selection members selected in accordance with the above, and the second liquid crystal element includes: an entire surface of the translucent substrate in one direction in the thickness direction; This is a color liquid crystal display device characterized in that it includes a transparent electrode provided over the entire area.

Function According to the present invention, in the first liquid crystal element, the display electrode is formed corresponding to a desired color selection member, and by applying a voltage to the display electrode, for example, transmitted light transmitted through the liquid crystal layer is transmitted to the color selection member. One predetermined color is selected by , and the predetermined color is thereby displayed in the display area.

At this time, further different colors can be displayed in the display area by forming display electrodes individually corresponding to multiple types of color selection members and combining multiple types of colors selected by the color selection members.

In addition, by stacking the first and second liquid crystal elements so that no light is transmitted when no voltage is applied to the display ti and transparent electrodes of the first and second liquid crystal elements, that is, the liquid crystal molecules closest to each other in the first and second liquid crystal elements are stacked. By stacking the layers so that their orientation directions are perpendicular to each other, a so-called normally black display can be performed. In this stacked state, the second liquid crystal element functions only as an optical compensator.

Therefore, in the first liquid crystal element, the transmitted light that has become elliptically polarized by passing through the liquid crystal layer corresponding to the display electrode to which no voltage is applied and the liquid crystal layer corresponding to the area where the display electrode is not formed is transmitted to the second liquid crystal element. When transmitted through the liquid crystal layer of the liquid crystal element, it is subjected to optical rotation in the opposite direction, and the incident polarized light from the liquid crystal layer of the first liquid crystal element to the liquid crystal layer of the second liquid crystal element has an extraordinary light component and a normal light component. However, by exchanging each other, the elliptically polarized light cancels out and returns to linearly polarized light. Therefore, the light transmitted through the region where no display electrode is formed and the region corresponding to the display region to which no voltage is applied is completely compensated by the second liquid crystal element, and light leakage can be prevented. As a result, it is possible to display complete black without coloring, and it is possible to improve the contrast in so-called normally black display in which the background color is black.

Furthermore, by applying a voltage to the transparent electrode of the second liquid crystal element in the stacked state described above, the liquid crystal molecules are aligned in the direction of the electric field, and when no voltage is applied, the light transmitted through the first liquid crystal element is Can transmit through two liquid crystal elements. This makes it possible to perform so-called normally white display in which the background color is white.

In this manner, two types of display, normally black display and normally white display, can be performed in one liquid crystal display device by simply switching application/non-application of voltage to the second liquid crystal element. At this time, if three types of color selection members that select red, green, and blue are used, for example, when a voltage is applied to the display electrode corresponding to the color selection member that selects red in the normally black display, the voltage increases. The applied liquid crystal layer transmits light, so
Red is displayed in the display area. In this state, if you switch to normally white display, only the part of the liquid crystal layer corresponding to the red color selection member will not transmit light.
Light blue (cyan) is displayed in the display area by a mixture of green light and blue light.

Therefore, one color liquid crystal display device can perform two types of display: normally black display and normally white display, and when the display mode is switched, the display color also changes, realizing display diversity. be done.

Embodiment FIG. 1 is a sectional view of a liquid crystal display device 21 which is an embodiment of the present invention. The liquid crystal display device 21 has two twisted nematic mode liquid crystal elements, a color display liquid crystal element 22 and a compensation liquid crystal element 23.

The color display liquid crystal element 22 has a pair of transparent substrates 24a and 24b made of glass, acrylic, etc., and a color filter layer 25 is provided on one surface of the transparent substrate 24a over almost the entire surface. A plurality of light-transmitting segments I/electrodes 26 are formed on the layer 25, and an alignment film 27a is further formed on the color filter 25 on which the segment electrodes 26 are formed. Transparent substrate 24
On one surface of b, at least the segment electrode 26
A plurality of light-transmitting common electrodes 28 are formed over the area including the transparent substrate 24b, and an alignment film 27b is formed on the transparent substrate 24b on which the common electrodes 28 are formed. The transparent substrates 24a and 24b are arranged such that the surfaces on which the alignment films 27a and 27b are formed, respectively, face each other.

The twisted nematic liquid crystal layer 29 is formed on the transparent substrate 24.
It is interposed between a and 24b and sealed with a sealing resin 30.

Polyimide resin was used for the alignment films 27a and 27b. The alignment films 27a and 27b are formed to have a layer thickness of, for example, 600 mm, and are made of nylon thread woven fabric so that the alignment direction of liquid crystal molecules is twisted by 90 degrees between the transparent substrates 24a and 24b, forming a left-handed liquid crystal layer. Rubbed.

In order to keep the distance between the transparent substrates 24a and 24b constant,
A plastic spencer (not shown) is sandwiched between the substrates. With this spacer, the distance between the substrates is set to, for example, 5 μm. The sealing resin 30 for sealing the two liquid crystal layers is, for example, epoxy resin.

For the two liquid crystal layers, for example, a phenylcyclohexane mixed liquid crystal is selected. Furthermore, cholesteric nonenate is added to this liquid crystal, giving it levorotatory properties.

The compensation liquid crystal element 23 has transparent substrates 31a, 31b made of glass, acrylic, etc.
A transparent electrode 3 is provided on one surface of each b over almost the entire surface.
7.38 is formed. Further, alignment films 32a and 32b are formed on the transparent electrodes 37 and 38, respectively. The transparent substrate 31a31b is arranged such that the surfaces on which the alignment films 32a and 32b are formed face each other.

The twisted nematic liquid crystal layer 33 is formed on the transparent substrate 31
It is interposed between a and 31b and sealed with a sealing resin 34. The alignment films 32a and 32b are made of polyimide resin, and the transparent substrate 31a is made of polyimide resin.

31b, the orientation directions of liquid crystal molecules are 90° to each other.
It is rubbed to form a twisted, dextrorotatory liquid crystal layer.

For the liquid crystal layer 33, phenylcyclohexane-based mixed liquid crystal was used as in the display liquid crystal element 22 described above. CB15 (manufactured by Merck & Co., Ltd.) is added to this liquid crystal as a dextrorotatory chiral substance. As in the case of the display liquid crystal element 22 described above, the transparent substrate 3 is sandwiched with a plastic spacer.
1a and 31b were superimposed. Transparent substrates 31a, 31b
The spacing between them is chosen to be, for example, 5 μm.

A polarizing plate 35 is provided on the surface of the transparent substrate 24b opposite to the liquid crystal layer 29, and a polarizing plate 36 is provided on the surface of the transparent substrate 31a opposite to the liquid crystal layer 33. These polarizing plates 35 and 36 are arranged so as to form crossed Nicols.

Segment electrode 26, common electrode 28 and transparent electrode 3
7.38 is formed of ITO. As for the sheet resistance value of ITO, a medium resistance value of 20 to 50 Ω/hole is generally used, but a low resistance value or one of 100 Ω/hole or more may be used.

FIG. 2 is a plan view of the color liquid crystal display device 21. FIG. In the color liquid crystal display device 21, segment electrodes 26 formed in, for example, a rectangular shape are arranged to form the character "day", and two such characters r, day, and j are arranged side by side.

FIG. 3 is an enlarged plan view showing the structure of the color filter layer 25, and FIG. 4 is a sectional view showing the structure of the color filter layer 25. The color filter layer 25 is formed by arranging red, green, and blue filters in a matrix or mosaic pattern. In FIGS. 3 and 4, red filters are designated with reference number R, green filters are designated with reference number G, and blue filters are designated with reference number B.

The sizes of each of the filters R, G, and B are so small that they cannot be discerned with the naked eye.

- As an example, length L1 = 330 μm and width L2 - 80
.mu.m rectangular filters R, G, and B are used, and the spacing between the filters L3=30 .mu.m. Therefore, the area formed by the three types of filters R, , G, and B lined up in the width direction A2 of the filter is 330 μm.
It becomes a square of x330 μm.

The spacing L3 between the filters is determined by the manufacturing accuracy of color filters such as photoprocessing, and is generally 15 μm to 15 μm.
It is 40 μm.

The filter arrangement is R-G- in the width direction A2 of the filter.
The permutation of B is repeated, and R-
The BG permutation is repeated. The shapes of the filters R, G, and H may be square or other shapes.

Moreover, between each filter R, G, and B, a black light shielding layer 40 is provided.
is formed. The light shielding layer 40 is made of chromium (Cr), black pigment, or the like.

In this embodiment, the color filter layer 25 is formed by filters R, G, and B of three colors, red, green, and blue, but after selecting two desired colors from the three colors, the color filter layer 25 is may be formed. In addition, the filters are not limited to the three colors of red, green, and blue; for example, yellow,
A filter of magenta color, cyan color, etc. may be used.

In this case as well, a two-color filter may be used as described above. Furthermore, the color filter layer 25 may be formed using filters of four or more colors.

FIG. 5 is an enlarged plan view of the segment electrode 26. The segment electrode 26 includes a red condolence wire ISR and a green electrode S.
g, and a blue electrode sb. Electrode Sr, Sg
, Sb are formed in respective areas corresponding to the filters R, G, and B in the display area, and each electrode Sr, Sg, and Sb is formed as a transparent electrode 4.1r, 4.1g, and 41 as a signal line.
They are connected by b. In this way, by sequentially connecting the electrodes Sr, Sg, and Sb corresponding to filters of the same color and arbitrarily selecting the electrode to which voltage is applied, red, yellow, green, light blue (cyan), blue, white,
Seven colors including pink (magenta) can be displayed within the target display area.

FIG. 6 shows polarizing plates 35 and 36 in the liquid crystal display device 21.
polarization direction and twisted nematic liquid crystal layer 29
．． 33 is a diagram for explaining the orientation direction of liquid crystal molecules of No. 33. FIG. FIG. 6(1) shows the absorption axis R1 of the polarizing plate 36. FIG. 6(2) shows the liquid crystal layer 33 of the compensation liquid crystal element 23.
The orientation direction and twist direction of liquid crystal molecules are shown. The alignment direction of the liquid crystal molecules closest to the transparent substrate 31a is indicated by the arrow R.
2, and this orientation direction R2 is parallel to the absorption axis R1 of the polarizing plate 36. Further, the alignment direction of the liquid crystal molecules closest to the transparent substrate 31b is indicated by an arrow R3, and therefore the liquid crystal molecules of the liquid crystal layer 33 are twisted 90 degrees to the right.

FIG. 6(3) shows the orientation direction and twist direction of liquid crystal molecules in the liquid crystal layer 29 of the liquid crystal display element 22 for color display. The alignment direction of the liquid crystal molecules closest to the transparent substrate 24a is indicated by an arrow R4, and the alignment direction of the liquid crystal molecules closest to the transparent substrate 24b is indicated by an arrow R5. Therefore, the liquid crystal molecules of the liquid crystal layer 29 are twisted 90° to the left. FIG. 6(4) shows an absorption axis R6 of the polarizing plate 35, and this absorption axis R6 is parallel to the alignment direction R5 of the liquid crystal molecules closest to the transparent substrate 24b.

As shown in FIG. 6, the twist angles of the liquid crystal molecules in the liquid crystal layer 29 of the liquid crystal element 22 for color display and the liquid crystal layer 33 of the liquid crystal element 23 for monochrome display are both 90 degrees. In addition, the liquid crystal layer 2
The liquid crystal molecules in the liquid crystal layer 33 are oriented in a levorotatory manner, and the liquid crystal molecules in the liquid crystal layer 33 are oriented in a dextrorotatory manner. That is, two liquid crystal elements 2
In 2.23, the twist directions of the liquid crystal molecules are set to be opposite to each other. Furthermore, the orientation direction of the liquid crystal molecules closest to the transparent substrate 24a of the liquid crystal layer 29 and the orientation direction of the liquid crystal molecules closest to the transparent substrate 31b of the liquid crystal layer 33 are arranged to be perpendicular to each other. Furthermore, the polarizing plates 35 and 36 are arranged so as to form crossed Nicols.

In a two-layer liquid crystal display device, optical compensation can be performed depending on the twist direction of the liquid crystal molecules in each liquid crystal layer and the positional relationship between the orientation directions of the liquid crystal molecules closest to each other.

Table 1 below shows the positional relationship between the twist direction and the alignment direction, and the effects associated therewith.

In this example, in order to give priority to optical compensation,
A state is used in which the twist directions of the liquid crystal molecules are opposite, and the alignment directions of the liquid crystal molecules closest to each other are perpendicular to each other.

FIG. 7 is a block diagram showing the configuration of the color liquid crystal display device 21. As shown in FIG. A backlight 43 is disposed on the opposite side of the polarizing plate 35 from the color display liquid crystal element 22, and the light from the backlight 43 is transmitted/blocked using the color display liquid crystal element 22 and the compensation liquid crystal element 23. By,
A display screen as described later is displayed on the color liquid crystal display device 21.

The color display liquid crystal element 22 is controlled by a color display liquid crystal element drive circuit 45. The color display liquid crystal element drive circuit 45 applies a voltage to the transparent electrode [i28] via the signal line r1 based on the display control signal from the display control circuit 47, and applies a voltage to the selected segment via the signal line group 12. A voltage is applied to electrode 26. This allows the color display liquid crystal element 22 to perform color display.

The compensation liquid crystal element 23 is driven by a compensation liquid crystal element drive circuit 46. The compensation liquid crystal element drive circuit 46 applies a voltage to the transparent electrode 38 via the signal line 13 and applies a voltage to the transparent electrode 37 via the signal line 14 based on the control signal from the display M# circuit 47. do. This allows the display mode to be switched in the compensation liquid crystal element 23.

FIG. 8 shows a color liquid crystal display device 1i! 9 is a timing chart for explaining the driving state of the color liquid crystal display device 21, and FIG. 9 is a diagram showing a display example of the color liquid crystal display device 21. FIG. 8(1) shows the driving state of the color display liquid crystal element 22, where a high level represents when voltage is applied, and a low level represents when no voltage is applied.

FIG. 8(2) shows the driving state of the compensating liquid crystal element 23, where a high level represents when voltage is applied, and a low level represents when no voltage is applied. In FIG. 8, the period T1 is
Since no voltage is applied to both the color display liquid crystal element 22 and the compensation liquid crystal element 23, the color liquid crystal display device 21 displays white as the background color.

In FIG. 8, during period T2, the color display liquid crystal element 2
In this state, only the compensation liquid crystal element 23 is driven and no voltage is applied to the compensation liquid crystal element 23, so-called normally black display is performed. That is, as shown in FIG. 9(1), only the area corresponding to the segment electrode 26 to which the voltage is applied transmits light, and for example, "12J" is displayed.

Here, for example, red type 8 corresponding to red filter R
If voltage is applied only to isr, "12" will be displayed in red.

The transmitted light that becomes elliptically polarized light by passing through the liquid crystal layer 29 to which no voltage is applied is because the liquid crystal molecules are oriented in the opposite direction to the liquid crystal molecules of the liquid crystal layer 29 when passing through the liquid crystal layer 33. is subjected to optical rotation in the opposite direction, and furthermore,
Since the extraordinary light component and the normal light component of the polarized light incident on the liquid crystal layer 33 from the liquid crystal layer 29 are arranged so that the closest liquid crystal molecules are orthogonal to each other, the elliptically polarized light is canceled out by exchanging with each other. Returns to linear polarization.

Therefore, the area where the segment electrode 8ii26 is not formed and the segment electrode 26 to which no voltage is applied
The light transmitted through the area corresponding to the compensation liquid crystal element 23
can be completely compensated for and prevent light leakage. With this, it is possible to display a more complete black without any coloring as the background color.

In FIG. 8, during period T3, the color display liquid crystal element 2
A voltage is applied to both the liquid crystal element 2 and the compensating liquid crystal element 23, and in this state, the color liquid crystal display device 21 performs a normally white display.

That is, as shown in FIG. 9(2), when no voltage is applied to the color display liquid crystal element 22, light passes through the liquid crystal layer, so the background color becomes white, which corresponds to the segment electrode 26 to which the voltage is applied. Areas are displayed in different colors.

For example, if a voltage is applied only to the red electrode Sr corresponding to the red filter R, only the region corresponding to the red filter R blocks light, and therefore, the mixture of green light and blue light causes a light blue (cyan) color. ) is displayed, "12" is displayed in light blue.

(The following is a blank space) Table 2 Table 2 shows the lighting status of the color display liquid crystal element 22,
The correspondence of display colors in normally black display and normally white display is shown. In Table 2, "○" represents a voltage applied state, and "." represents a voltage not applied state.

There is a complementary color relationship between the normally black display color and the normally white display color in the same lighting state of the color display liquid crystal element 22.

FIG. 10 is a diagram showing viewing angle characteristics of the color liquid crystal display device 21. FIG. 10(1) shows the viewing angle range during normally black display, and the area surrounded by a solid line 111 is an area where the contrast ratio CO is 10 or more. FIG. 10 (2) is a diagram showing the viewing angle range when normally white display is performed. The area surrounded by l/12 is an area where the contrast ratio CO is 10 or more. As shown in FIG. 10, the normally black display is superior to the normally white display in terms of viewing angle characteristics.

Table 3 Table 3 shows contrast values in each display state. As shown in Table 3, sufficient contrast can be obtained in both display modes, normally black display and normally white display.

As described above, according to this embodiment, the transparent electrode 3 covers almost the entire surface of the transparent substrates 31a and 31b of the compensation liquid crystal element 23.
By forming a transparent electrode 37.38 and applying/not applying a voltage to the transparent electrode 37.38, it is possible to switch between so-called normally black display and normally white display in a liquid crystal display device. You can realize your sexuality. Further, by using the compensating liquid crystal element 23, the background color in normally black display can be made completely black with less coloration, and sufficient contrast can be obtained.

Furthermore, since the color filter layer 25 is composed of rectangular filters R, G, and B arranged in a matrix, it is possible to control the mixing degree of colors when displaying different colors by combining filters of different color types. The clarity of displayed colors is improved, and beautiful colors can be displayed.

The present invention is not limited to a segment type liquid crystal display device, but may also be applied to a simple matrix type or active matrix type liquid crystal display device.

As another example, the color filter layer 25 may be formed on the segment electrodes 26. Also transparent electrode 37.38
may be formed only in predetermined areas of the transparent substrates 31a, 31b, and the display mode may be partially switched.

Effects of the Invention As described above, according to the present invention, two types of display, normally black display and normally white display, can be performed in one color liquid crystal display device, and when the display mode is switched, the display color Since the values also change, display diversity is realized.

[Brief explanation of the drawing]

FIG. 1 shows a color liquid crystal display device 2 which is an embodiment of the present invention.
1 is a sectional view showing the configuration of 1, and FIG. 2 is a color liquid crystal display device 2.
FIG. 3 is an enlarged plan view showing the configuration of the color filter layer 25; FIG.
The figure is a cross-sectional view showing the structure of the color filter layer 25.
2I is a plan view showing the configuration of segment I/electrode 26;
The figure shows a color display liquid crystal element 22 and a compensation liquid crystal element 2.
Figure 7 is a block diagram showing the electrical configuration of the color liquid crystal display device 21, and Figure 8 is a color liquid crystal display. 9 is a plan view for explaining a display example of the color liquid crystal display device 21, FIG. 10 is a diagram showing the viewing angle characteristics of the color liquid crystal display device 21, and FIG. FIG. 11 is a sectional view showing the structure of a conventional color liquid crystal display bag W1. 21... Color liquid crystal display device, 22... Liquid crystal element for color display, 23... Liquid crystal element for compensation, 24a 24
b, 31a, 31b--Transparent substrate, 25--Color filter layer, 26--Segment electrode, 28--Common electrode, 29.33--Liquid crystal layer, 37.38--
Transparent electrode, R...red filter, G...green filter, B...blue filter, Sr...red electrode, S
g...electrode for green, sb...electrode for blue

Claims (1)

[Scope of Claims] In a color liquid crystal display device in which first and second liquid crystal elements are stacked, each having a pair of transparent substrates provided with a liquid crystal layer in between, the first liquid crystal element comprises: a plurality of color selection members provided over the entire surface of one side in the thickness direction, each of which selects one of a plurality of predetermined colors for transmitting light; and a display area on the liquid crystal layer side of the light transmitting substrate. a display electrode having translucency and formed in a range corresponding to the plurality of color selection members selected in accordance with a predetermined color to be displayed in the display area, the second liquid crystal element comprising: A color liquid crystal display device comprising: a transparent electrode provided over the entire surface of one side in the thickness direction of the transparent substrate.