JPH11202315A - Reflection type liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reflection type liquid crystal display device capable of reducing the loss of light by a color filter, obtaining bright white display and preventing display color deviation caused by alignment deviation without lowering color display quality. SOLUTION: Plural segment electrodes 16a are arranged side by side at prescribed intervals on one transparent substrate 2 of a pair of the transparent substrates 2 and 6 opposing each other while interposing a liquid crystal layer 18, the color filters 12a corresponding to the respective plural segment electrodes 16a are provided on the other transparent substrate 6 and the width W3 of the each color filter 12a is 80-98% of the width W4 of the corresponding segment electrode 16a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflection type liquid crystal display device capable of obtaining a bright white display and having no display color shift due to alignment shift.

[0002]

2. Description of the Related Art In general, display modes of a liquid crystal display device include:
There are a transflective type and a transmissive type equipped with a backlight, and a reflective type provided with a backlight. FIG. 4 is a cross-sectional view showing a schematic configuration of a conventional general transmission type liquid crystal display device. This device is an example of a simple matrix STN type liquid crystal display device. This transmission type liquid crystal display device has a lower polarizing plate 7.
0, a liquid crystal cell 72 for STN (Super-Twisted Nematic) mode, first and second retardation plates 73a and 73b.
Are laminated, an upper polarizing plate 74 is further laminated on the second retardation plate 73b, and a backlight (not shown) is provided below the lower polarizing plate 70. Note that an arrow L in FIG. 4 is light emitted from the backlight. The liquid crystal cell 72 includes a lower glass substrate 75, a color filter layer 76, an overcoat layer 77 made of silica or acrylic resin, and a lower transparent electrode layer 7.
8, a lower alignment film 79, an upper alignment film 80 opposed to the lower alignment film 79 with a gap, and an upper transparent electrode layer 8.
1. An upper glass substrate 82 is stacked in this order, and an STN liquid crystal layer 83 is disposed between the lower alignment film 79 and the upper alignment film 80.

The first and second retardation plates 73a, 73
b is for compensating the phase difference of the light transmitted through the STN liquid crystal to prevent the display from being colored blue or yellow. The lower transparent electrode 78 is formed by arranging a plurality of common electrodes 78a extending in the left-right direction in FIG. 4 in a stripe shape, and the upper transparent electrode 81 extends in a direction penetrating the plane of FIG. A plurality of extending segment electrodes 81a are arranged in a stripe shape. As shown in FIG. 5, the common electrode 78a and the segment electrode 81a are arranged so as to be orthogonal to each other when viewed from the display surface side (the upper glass substrate 82 side) of the liquid crystal display device.

[0004] The color filter layer 76 is formed from three primary color color filters 76a of red (hereinafter abbreviated as G), green (abbreviated as G), and blue (abbreviated as B). These color filters 7
6a is provided corresponding to the plurality of segment electrodes 81a. These color filters 76a are formed larger than the shape of the pixel region 89 (the portion indicated by oblique lines). The color filter arrangement of the color filter layer 76 is as follows.
Each color filter 76a is of a stripe type in which R, G, and B are alternately arranged vertically or horizontally for each color filter. The color filter layer 76 includes
A linear black matrix (hereinafter abbreviated as BM) that covers the non-pixel region 90 is formed around each color filter 76a. The pixel region 89 is a region where the segment electrode 81a intersects with the common electrode 78a and the liquid crystal layer 83 operates between the electrodes to actually contribute, and the non-pixel region 90 does not contribute to display. It is an area.

In a conventional transmission type liquid crystal display device, a color filter layer 76 and a lower transparent electrode layer 7 are usually provided.
Each color filter is taken into consideration in consideration of the alignment accuracy when the lower glass substrate 75 on which the upper electrode 8 and the like are formed and the upper glass substrate 82 on which the upper transparent electrode layer 81 and the like are formed and the dimensional accuracy of the color filter 76a. 76a are formed so as to protrude to the non-pixel region 90, ie, the width W ₁ and the segment electrodes 8 of the color filters 76a
Width W ₆ of 1a is greater than the width W ₂ of the opening of the corresponding BM, or is designed to be approximately the size of the same order. As a specific example, both end portions of the color filter 76a each extend about 4 μm into the BM region, that is, the width W _{1 of the} color filter 76a.
Is about 8 μm larger than the width W ₂ of the opening of the corresponding BM.

[0006] The conventional transmissive liquid crystal display device having the above-described structure is provided with a backlight, so that a bright white display can be obtained. However, the use of a backlight power source increases power consumption. There was a problem. Therefore, in place of the transmissive liquid crystal display device, a reflective liquid crystal display device that uses only external light such as sunlight and illumination light to display without a backlight has been widely used in portable information terminals and the like. I have. This reflective liquid crystal display device
The difference from the transmissive liquid crystal display device is that a reflective film is provided instead of a backlight provided below the lower polarizing plate 70.

[0007]

However, when the liquid crystal cell 72 provided in the conventional transmission type liquid crystal display device is applied to a reflection type liquid crystal display device, a color filter layer 76 is required.
Since the BM of is not always necessary, if the BM is removed,
Since the screen is covered with a color filter having a large width with respect to the non-pixel region 90, the white display becomes dark. The reason is that in a reflective liquid crystal display device, display is performed by using external light. Therefore, when the ratio of the total area of the color filters increases, the light attenuation increases, so that the screen becomes dark and the visibility of the display is greatly impaired. It is because. In addition, in the conventional transmissive liquid crystal display device, even if the screen is covered with a color filter having a large width with respect to the non-pixel region 90, a bright white display can be obtained because the backlight is provided. Further, in the conventional reflection type liquid crystal display device, the incident light is transmitted through the liquid crystal cell 72 to the lower polarizing plate 7.
However, since the reflection film is provided under the lower polarizing plate 70, the incident light is reflected on the surface of the reflection film toward the upper glass substrate.
6a protrudes to the non-pixel region 90, and when the incident external light or the reflected light of the incident light reflected by the reflection film passes through the non-pixel region 90, these lights are transmitted to the color filter 76a.
The screen is darkened by the screen. In addition, there is a problem that it is difficult to align the lower glass substrate 75 and the upper glass substrate 82 when they are bonded to each other, and a display color shift easily occurs due to an alignment shift.

The present invention has been made to solve the above-mentioned problems, and can reduce a loss of light due to a color filter and obtain a bright white display without deteriorating a color display quality. Moreover, it is an object of the present invention to provide a reflective liquid crystal display device capable of preventing display color shift due to alignment shift.

[0009]

In order to achieve the above object, a reflection type liquid crystal display device according to the present invention comprises a plurality of transparent substrates, one of a pair of transparent substrates opposed to each other with a liquid crystal layer interposed therebetween. The segment electrodes are arranged side by side at predetermined intervals, and the other transparent substrate is provided with a color filter corresponding to each of the plurality of segment electrodes, and the width of each color filter is set to 80 times the width of the corresponding segment electrode. Or 98%. In the reflection type liquid crystal display device having the above-described configuration, the width of each color filter is set to 80 to 98% of the width of the corresponding segment electrode because the width of each color filter is 85% of the width of the corresponding segment electrode. If it is smaller than this, the chromaticity is lowered and the color display quality is reduced. If it exceeds 98%, the effect of darkening the screen and brightening the screen cannot be expected. Thus, by setting the width of each color filter to 80 to 98% of the width of the corresponding segment electrode,
The screen can be brightened while maintaining sufficient chromaticity. When the width of each color filter is 85 to 90% of the width of the corresponding segment electrode, a bright white display can be obtained, the visibility of the display can be improved, the chromaticity can be increased, and the color display quality can be improved. It is preferred in that respect.

In the reflection type liquid crystal display device of the present invention,
Color filters respectively corresponding to the plurality of segment electrodes arranged side by side on the one transparent substrate are provided on the other transparent substrate, and the width of each color filter is set to 80 to 98% of the width of the corresponding segment electrode. Thereby, since the color filter does not protrude into the non-pixel region, when the incident external light or the reflected light of the incident light reflected by the reflection film passes through the non-pixel region, these lights are not blocked by the color filter. Further, since the ratio of the total area of the color filters is smaller than that of the conventional reflection type liquid crystal display device, the attenuation of light by the color filters can be reduced. Further, since the width of each color filter is smaller than the width of the corresponding segment electrode, the color filter does not protrude from the corresponding segment electrode even when the alignment is slightly shifted when the two transparent substrates are bonded. Therefore, according to the reflective liquid crystal display device of the present invention, it is possible to reduce the loss of light due to the color filter and obtain a bright white display without deteriorating the color display quality, and to reduce the display color shift due to the alignment shift. Can be prevented.

Further, in the reflection type liquid crystal display device of the present invention, a plurality of segment electrodes are juxtaposed at a predetermined interval on one of a pair of transparent substrates opposed to each other with a liquid crystal layer interposed therebetween. In addition, a color filter corresponding to each of the plurality of segment electrodes may be provided, and the width of each color filter may be 80 to 98% of the width of the corresponding segment electrode. That is, the reflective liquid crystal display device of this configuration is different from the reflective liquid crystal display device of the above configuration in that a plurality of segment electrodes and a color filter are provided on the same transparent substrate side, and the width of the color filter is The components are the same as those of the reflection type liquid crystal display device having the above configuration.

In the reflection type liquid crystal display device of this configuration,
A plurality of segment electrodes are juxtaposed on the one transparent substrate, and a color filter corresponding to each of the plurality of segment electrodes is provided. The width of each color filter is set to 80 to 98% of the width of the corresponding segment electrode. As a result, the color filter does not protrude into the non-pixel region, so that when the incident external light or the reflected light of the incident light reflected by the reflection film passes through the non-pixel region, the light is blocked by the color filter. In addition, since the ratio of the total area of the color filters is smaller than that of the conventional reflection type liquid crystal display device, the attenuation of light by the color filters can be reduced. Further, since the width of each color filter is smaller than the width of the corresponding segment electrode, the color filter does not protrude from the corresponding segment electrode even when the alignment is slightly shifted when the two transparent substrates are bonded.
Therefore, according to the reflective liquid crystal display device having such a configuration, it is possible to reduce the loss of light due to the color filters and obtain a bright white display without deteriorating the color display quality. Displacement can be prevented.

In the reflection type liquid crystal display device having the above two constitutions, the segment electrode provided on one transparent substrate and the common electrode provided on the other transparent electrode substantially have a simple matrix which intersects each other. Of the liquid crystal display device. In the present invention, the color filter is a long rectangular colored layer, and such a color filter is formed by a method such as photolithography or a printing method corresponding to each of the plurality of segment electrodes provided on the transparent substrate. What is formed is a color filter layer. The arrangement of the color filters in the present invention is R, G,
B constitutes a stripe type arranged alternately vertically or horizontally. In the present invention, a pixel region is a region where a segment electrode and a common electrode intersect and a liquid crystal layer operates between the electrodes to actually contribute, and a non-pixel region is a region other than that which does not contribute to display. It is.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. The reflection type liquid crystal display device of this embodiment is an application of the present invention to a simple matrix type STN type color liquid crystal display device.
As shown in FIG. 1, the reflection type liquid crystal display device according to the present embodiment includes a liquid crystal cell 1 and a first retardation plate sequentially disposed outside an upper glass substrate 2 (upper transparent substrate) of the liquid crystal cell 1. 3, a second retardation plate 4 and an upper polarizer 5.

The liquid crystal cell 1 comprises a lower glass substrate (lower transparent substrate) 6 among the upper and lower glass substrates 2 and 6 opposed to each other.
A resin layer 1 having a large number of irregularities on its surface.
The reflective film 11, a color filter layer 12, an overcoat layer 13, a lower transparent electrode layer 14 made of indium tin oxide (hereinafter, referred to as ITO), and an alignment film 15 are sequentially stacked. I have. On the other hand, on the facing surface of the upper glass substrate 2, an upper transparent electrode layer 16 made of ITO and an alignment film 17 are sequentially laminated. Then, S is placed between the alignment films 15 and 17 on the upper and lower glass substrates 2 and 6.
The TN liquid crystal layer 18 is sealed.

The lower transparent electrode layer 14 has a stripe shape in which a plurality of common electrodes 14a extending in the left-right direction in FIG. 1 are juxtaposed at predetermined intervals. The upper transparent electrode layer 16 has a stripe shape in which a plurality of segment electrodes 16a extending in a direction penetrating the plane of FIG. 1 are juxtaposed at predetermined intervals. The reflection type liquid crystal display device of the present embodiment is of a simple matrix type as described above, and the segment electrodes 16 and the common electrodes 14 are orthogonal to each other as shown in FIG. A region where these electrodes 14 and 16 overlap is a pixel region (shaded portion) 19, and the other region is a non-pixel region 20.

The color filter layer 12 is formed by forming a color filter 12a composed of a long rectangular colored layer in correspondence with each of the plurality of segment electrodes 16a. The color filter array of the color filter layer 12 is of a stripe type in which the color filters 12a are alternately arranged vertically or horizontally for each color filter in the order of R, G, and B. Width W ₃ of the color filter 12a is a 80 to 98% of the width W ₄ of the corresponding segment electrode 16a, i.e., the color filters 12a
Are provided in the pixel region 19 and do not protrude into the non-pixel region 20. The width of each color filter 12a is 85, which is the width of the corresponding segment electrode 16a.
If the value is less than%, the chromaticity decreases and the color display quality deteriorates. If the value exceeds 98%, the effect of darkening the screen and brightening the screen cannot be expected.

The preferred width W ₃ of each color filter 12a
From viewpoint of improving the color display quality can increase the chromaticity is possible to improve the visibility of the display can be obtained a bright white display, it is 85 to 90% of the width W ₄ of the corresponding segment electrode 16a. However, in the case of the present embodiment, each color filter 12
A BM covering the non-pixel region 20 should not be formed around a. Because the device of the present embodiment is a reflection type liquid crystal display device, incident external light and the incident light are reflected by the reflection film 11.
It is necessary that the reflected light reflected by the non-pixel region 20 is transmitted through the non-pixel region 20, but if the BM is present, the light is not transmitted.

Here, as an example of the dimensions of each part, the width W ₅ of the common electrode 14a is 237 μm,
Space S ₁ is 18 [mu] m between the width W ₄ of the segment electrode 16a is 67 .mu.m, a space S ₂ between the segment electrodes 16a is 18 [mu] m, the width W ₃ of the color filter 57 .mu.m, a space S ₃ between the color filters 12a 28 .mu.m, the pixel pitch P ₁ is 255Myuemu, pitch P ₂ of the color filter 12a is 85 .mu.m. Also, the segment electrode 16a
The allowable range of the width W ₃ of the color filter when the width W ₄ of the 67 .mu.m, 53.6 to 68.37Myuemu, preferably 56.95 to 60.3Myuemu.

As the alignment films 15 and 17, a transparent alignment film which is generally used is used, and for example, a polymer film such as polyimide is rubbed. The STN liquid crystal layer 18 is composed of upper and lower alignment films 15 and 17 provided on the facing surfaces of the upper glass substrate 2 and the lower glass substrate 6.
Liquid crystal molecules that are in a nematic state at room temperature and enclosed between the layers, and the liquid crystal molecules are 180 ° or more, preferably 2 ° or more.
A super twisted nematic type that is oriented by being twisted by 40 ° is used. The upper glass substrate 2
Although it depends on the type of liquid crystal display device, soda lime glass or the like can be used. The lower glass substrate 6
As for the above, although it depends on the type of the liquid crystal display device, soda lime glass or the like containing an oxide of an alkali metal such as sodium can be used. The overcoat layer 13 is provided for flattening irregularities due to the color filter layer 12 and is made of an organic material such as polyvinyl alcohol or acrylic resin having high adhesion to the color filter layer 12.

The reflection film 11 serves to increase the viewing angle by reflecting and diffusing incident external light. The reflection film 11 is made of a metal film such as an Al film or an Ag film formed along the uneven surface of the resin layer 10 provided on the opposite surface side of the lower glass substrate 6. The first and second retardation plates 3, 4
Is made of a mono- or biaxially stretched polyvinyl alcohol or polycarbonate film. As the upper polarizing plate 5, a commercially available polarizing plate (for example, product name: G
1225 DU, manufactured by Nitto Denko Corporation).

When the reflection type liquid crystal display device of the first embodiment is used, display is performed using external light, but the incident external light is reflected on the upper glass substrate 2, the liquid crystal layer 18, the color filter, and the like. 12a or the non-pixel region 20 between the color filters 12a and reaches the opposite surface of the lower glass substrate 6,
At this time, since the color filter 12a does not protrude into the non-pixel region 20, when the incident external light passes through the non-pixel region 20, the incident light passes through the non-pixel region 20 without being blocked by the color filter 12a. It is possible to prevent the external light amount from decreasing. In the liquid crystal display device of this embodiment, since the reflection film 11 is provided on the surface facing the lower glass substrate 6, the incident light is directed toward the upper glass substrate 2 on the surface of the reflection film 11. Reflected, color filter 12a
Alternatively, the upper glass substrate 2 reaches the upper glass substrate 2 via the non-pixel region 20, and color display is possible. At this time, since the color filter 12a does not protrude into the non-pixel region 20, when the reflected light passes through the non-pixel region 20, The light is not blocked by the color filter 12a, so that the amount of reflected light passing through the non-pixel region 20 can be prevented from decreasing.

In the reflection type liquid crystal display device of the first embodiment, the color filters 12a corresponding to the plurality of segment electrodes 16a arranged in parallel on the upper glass And the width W ₃ of each color filter 12a is set to be 80 to 98% of the width W ₄ of the corresponding segment electrode 16a, so that the color filter 12a does not protrude into the non-pixel region 20. When the reflected light of the incident light reflected by the reflection film 11 passes through the non-pixel region 20, the light is not blocked by the color filter 12a. Since the ratio of the total area is small, light attenuation by the color filter can be reduced. Further, since the width W ₃ of the color filter 12a is smaller than the width W ₄ of the corresponding segment electrode 16a, even if slightly shifted alignment when bonding the upper and lower glass substrates 2 and 6, the color filter 12a is It does not protrude from the corresponding segment electrode 16a.
Therefore, according to the reflection type liquid crystal display device of the first embodiment, light loss due to the color filter can be reduced and a bright white display can be obtained without deteriorating the color display quality. Display color shift can be prevented.

Hereinafter, a second embodiment of the present invention will be described with reference to FIG. Similar to the first embodiment, the reflection type liquid crystal display device of the present embodiment is also one in which the present invention is applied to a simple matrix type STN type color liquid crystal display device.
The difference between the device of the present embodiment and the device of the first embodiment is that a plurality of segment electrodes 16a are provided.
This is the point that the color filter layer 12 is provided on the same upper glass substrate 2 side, and the width of the color filter 12a is the same as that of the reflection type liquid crystal display device of the first embodiment. The other schematic configuration is the same as that of the first embodiment.
, The same reference numerals are given to the same components as those in FIG.
Detailed description is omitted.

As shown in FIG. 3, the liquid crystal cell 1 has a resin layer 10, a reflection film 11, a flattening layer 22, an ITO
The lower transparent electrode layer 14 and the alignment film 15 are sequentially laminated. On the other hand, the color filter layer 12, the overcoat layer 13,
An upper transparent electrode layer 16 made of TO and an alignment film 17 are sequentially laminated. An STN liquid crystal layer 18 is sealed between the alignment films 15 and 17 on the upper and lower glass substrates 2 and 6. The constituent materials of each layer are the same as in the first embodiment.

The lower transparent electrode layer 14 has a stripe shape in which a plurality of common electrodes 14a extending in the left-right direction in FIG. 3 are juxtaposed at predetermined intervals. The upper transparent electrode layer 16 has a stripe shape in which a plurality of segment electrodes 16a extending in a direction penetrating the plane of FIG. 3 are juxtaposed at predetermined intervals. The color filter layer 12 is formed by forming a color filter 12 a made of a long rectangular colored layer corresponding to each of the plurality of segment electrodes 16 a provided on the upper glass substrate 2. In the case of the liquid crystal display device of the present embodiment, although the sectional structure is different from that of the first embodiment, the segment electrode 16a and the common electrode 14
a, the planar positional relationship between the color filters 12a is the same as in the first embodiment, and is as shown in FIG. Further, each color filter 12 a is provided in the pixel area 19, and does not protrude into the non-pixel area 20.

When using the reflection type liquid crystal display device of the second embodiment, display is performed by using external light, but the incident external light is reflected by the upper glass substrate 2 and the color filter 12a.
Alternatively, the light reaches the facing surface of the lower glass substrate 6 through the non-pixel region 20 between the color filters 12a and the liquid crystal layer 18,
At this time, since the color filter 12a does not protrude into the non-pixel region 20, when the incident external light passes through the non-pixel region 20, the incident light passes through the non-pixel region 20 without being blocked by the color filter 12a. It is possible to prevent the external light amount from decreasing. In the liquid crystal display device of this embodiment, since the reflection film 11 is provided on the opposite surface of the lower glass substrate 6, the incident light is directed toward the upper glass substrate 2 on the surface of the reflection film 11. Reflected, color filter 12a
Alternatively, color display is possible through the non-pixel region 20 to the upper glass substrate 2, but at this time, the color filter 12 a does not protrude into the non-pixel region 20. The light is not blocked by the color filter 12a, so that the amount of reflected light passing through the non-pixel region 20 can be prevented from decreasing.

In the reflection type liquid crystal display device of the second embodiment, a plurality of segment electrodes 16a are juxtaposed on the upper glass substrate 2 and a color corresponding to each of the plurality of segment electrodes 16a is provided. By providing the filters 12a and setting the width of each color filter 12a to 80 to 98% of the width of the corresponding segment electrode 16a, the same operation and effect as those of the reflective liquid crystal display device of the first embodiment can be obtained. Can be. Note that the technical scope of the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention. For example, in the above embodiment, the example in which the reflection film 11 is provided on the facing surface side of the lower glass substrate 2 has been described.
The disposing position of the reflective film 11 is not limited to this position. For example, an external reflector type provided outside the lower glass substrate 2 (outside the liquid crystal cell 1) may be used. In the case of an external reflector type, a lower polarizing plate may be provided between the lower glass substrate and the reflective film. Further, the constituent materials of each part can be appropriately changed.

[0029]

As described above, in the reflection type liquid crystal display device of the present invention, a plurality of segment electrodes are provided on one of a pair of transparent substrates opposed to each other with a liquid crystal layer interposed therebetween. Are arranged side by side at predetermined intervals, and the other transparent substrate is provided with color filters corresponding to the plurality of segment electrodes, respectively, and the width of each color filter is set to 80 to 98% of the width of the corresponding segment electrode. As a result, the color filter does not protrude into the non-pixel region, so that when the incident external light or the reflected light of the incident light reflected by the reflection film passes through the non-pixel region, these lights may be blocked by the color filter. In addition, since the ratio of the total area of the color filters is smaller than that of the conventional reflection type liquid crystal display device, light attenuation by the color filters can be reduced. Further, since the width of each color filter is smaller than the width of the corresponding segment electrode, the color filter does not protrude from the corresponding segment electrode even when the alignment is slightly shifted when the two transparent substrates are bonded. Therefore, according to the reflection-type liquid crystal display device of the present invention, it is possible to reduce the loss of light due to the color filters and obtain a bright white display without deteriorating the color display quality, and to reduce the display color shift due to the alignment shift. Can be prevented.

In the reflection type liquid crystal display device according to the present invention, a plurality of segment electrodes are juxtaposed at a predetermined interval on any one of a pair of transparent substrates opposed to each other with a liquid crystal layer interposed therebetween. In addition, a color filter corresponding to each of the plurality of segment electrodes may be provided, and the width of each color filter may be 80 to 98% of the width of the corresponding segment electrode. Also in the reflection type liquid crystal display device having such a configuration,
The same operation and effect as those of the reflective liquid crystal display device having the above configuration can be obtained. In the reflection type liquid crystal display device having the above-mentioned configuration, when the width of each color filter is set to 85 to 90% of the width of the corresponding segment electrode, a bright white display can be obtained and the visibility of the display can be obtained. And the chromaticity can be increased, and the color display quality can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a reflective liquid crystal display device according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the arrangement of common electrodes, segment electrodes, and color filters of the reflection type liquid crystal display device.

FIG. 3 is a sectional view showing a reflective liquid crystal display device according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view illustrating an example of a conventional reflective liquid crystal display device.

FIG. 5 is a plan view showing the arrangement of electrodes and color filters of a conventional reflective liquid crystal display device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Liquid crystal cell 2 Upper glass substrate (upper transparent substrate) 3, 4 Retardation plate 5 Upper polarizing plate 6 Lower glass substrate (lower transparent substrate) 10 Resin layer 11 Reflective film 12 Color filter layer 12a Color filter 14 Lower transparent electrode layers 14a common electrodes 15, 17 alignment film 16 upper transparent electrode layer 16a segment electrode 18 STN liquid crystal layer (liquid crystal layer) 19 pixel region 20 pixel region W ₃ widths W ₄ segment electrode of the color filter

Claims (4)

[Claims] 1. A pair of transparent substrates facing each other across a liquid crystal layer, a plurality of segment electrodes are arranged in parallel on one of the transparent substrates at a predetermined interval, and the plurality of segment electrodes are arranged on the other transparent substrate. A reflection type liquid crystal display device, wherein color filters corresponding to the respective segment electrodes are provided, and the width of each color filter is 80 to 98% of the width of the corresponding segment electrode. 2. The reflection type liquid crystal display device according to claim 1, wherein the width of each color filter is 85 to 90% of the width of the corresponding segment electrode. 3. A plurality of segment electrodes are arranged side by side at a predetermined interval on one of a pair of transparent substrates facing each other with a liquid crystal layer interposed therebetween, and each of the plurality of segment electrodes is Wherein the width of each color filter is 80 to 98% of the width of the corresponding segment electrode. 4. The reflection type liquid crystal display device according to claim 3, wherein the width of the color filter is 85 to 90% of the width of the corresponding segment electrode.