JP2003344880A - Electro-optical device, and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrophoretic display device realizing high contrast display by performing predetermined background display in a pixel peripheral area. <P>SOLUTION: The electrophoretic display device 10 is provided with a dispersion medium 5 between a pair of substrates 1, 8, and electrophoretic particles 6 migrating in the dispersion medium, within the substrate surfaces, it is provided with a pixel area 31 capable of displaying each display unit and a non- pixel area 32 different from the pixel area 31; the pixel area 31 is provided with electrodes 2a, 7a for performing energization control in display units, and the non-pixel area 32 is provided with electrodes 2b, 43 for performing energization control separately from the electrodes 2a, 7a. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electro-optical device and electronic equipment, and more particularly to an electro-optical device having a structure capable of providing high contrast display.

[0002]

2. Description of the Related Art An electrophoretic display device utilizing an electrophoretic phenomenon is known as a non-emissive display device. The electrophoretic phenomenon is a phenomenon in which particles migrate due to Coulomb force when an electric field is applied to a dispersion system in which electrophoretic particles are dispersed in a solvent.

The basic structure of an electrophoretic display device is such that one electrode and the other electrode are opposed to each other at a predetermined interval, and a dispersion system is enclosed between them. When a potential difference is applied between the two electrodes, the electrophoretic particles charged depending on the direction of the electric field are attracted to one of the electrodes. If the solvent of the dispersion system is dyed with a dye and the electrophoretic particles are composed of pigment particles, the observer can see the color of the electrophoretic particles or the color of the dye. Therefore, by patterning the electrode for each pixel and controlling the voltage applied to each pixel, the display can be switched for each pixel.

[0004]

The electrophoretic display device described above has been attracting attention as a technique for substituting a liquid crystal display device or the like, but unlike a liquid crystal display device, a bright display is performed by a threshold voltage.
Since dark display is not selected, electrophoretic particles may migrate even with a slight voltage, resulting in display failure. For example, in the display device having the configuration in which the electrodes are patterned for each pixel as described above and the electrophoretic particles are provided even in the peripheral region of the pixel and in which the display is not performed, a slight voltage change causes Halftone display may occur in the pixel peripheral area, or in some cases, halftone display may be unstable and erratic.
This may be one of the causes of deterioration in display quality such as deterioration in contrast.

Further, one of the major characteristics of the electrophoretic display device is that a so-called paper display can be realized because a display like paper based on white as a background color of the display is possible. However, even if a white-based tone display is realized as a corner display, if the unstable halftone display occurs in the peripheral portion as described above, the tint of the paper disappears in that portion, that is, This may cause deterioration of display quality.

The present invention has been made in order to solve the above-mentioned problems, and enables a high-contrast display by performing a predetermined background display in the pixel peripheral area, and a brighter display with a high display quality. It is an object of the present invention to provide an electro-optical device having the following.

[0007]

In order to solve the above-mentioned problems, an electro-optical device of the present invention is provided with a dispersion medium, electrophoretic particles, and a first area capable of displaying for each display unit. A first electrode on which energization control is performed for each unit;
And a second electrode which is provided in a second region different from the region and whose energization control is performed separately from the first electrode.

That is, in the electro-optical device of the present invention, the first region substantially contributes to the display, and the second region does not contribute to the display. In the conventional electro-optical device, the electrodes are not provided in the region that does not contribute to the display, so that the electrophoretic particles existing in this region are in a state of not being electrophoresed. As a result, there have been problems such as unstable halftone display caused by a slight voltage change.

On the other hand, according to the electro-optical device of the present invention, it is possible to perform display control in the second area separately from the first area, and in the second area, a slight voltage is applied from the outside due to static electricity or the like. Even when loaded, the second
Problems such as the occurrence of halftone display in the area are less likely to occur, and it is possible to provide a high-contrast display. Further, in the present invention, the display mode of the second region can be switched by controlling the energization of the second electrode, and the display pattern can be freely set.

Specifically, when the display color in the first area is set to black and the background color of the display is set to white (that is, set to monochrome display), energization is controlled so that the second area becomes white. Thus, it becomes possible to provide a bright paper type display based on white, and by controlling energization so that the second region becomes black, the contrast in the first region is improved and a highly visible display is provided. Is possible. Further, in the present invention, these white or black displays can be switched by controlling the energization of the second electrode, and the display pattern can be freely set.

The electro-optical device according to the present invention has the second aspect.
The electrophoretic medium and the electrophoretic particles are sandwiched between the electrodes facing each other in the area, and it is possible to perform display corresponding to the display mode of the first area based on control of energization between the electrodes. In this case, the electrode provided in the second region is the first
It is not necessary to control the energization for each unit display like a region, but a structure in which one electrode is opposed to each other in the region plane can be adopted. Of course, it may be divided into a plurality of portions and given the same potential depending on the wiring.

In the electro-optical device according to the present invention, the first region has a structure including a plurality of pixels, and
The second region is configured as a peripheral region formed around the first region, and the second electrode is displayed in the second region in substantially the same color as the background color of the display in the first region or in substantially the same color as the display color. The energization control can be performed as much as possible. In this case, for example, it is possible to use white display as a background color and black display as a display color in the first area, and correspondingly, for example, perform black display in the second area for the purpose of improving contrast. For example, white display may be performed in the second area for the purpose of constructing a bright display.

Further, the first region is configured to include a plurality of pixels, the second region is configured as an inter-pixel region formed between the plurality of pixels, and the first electrode is formed in the second region with respect to the second electrode. The energization control can be performed so as to display a color substantially the same as the background color of the area or substantially the same as the display color. In this case, for example, it is possible to use white display as a background color and black display as a display color in the first area, and correspondingly, for example, perform black display in the second area for the purpose of improving contrast. For example, white display may be performed in the second area for the purpose of constructing a bright display. The inter-pixel area is
It can be formed on the substrate side facing the substrate on which the black matrix is formed, corresponding to the formation position of the black matrix between the plurality of pixels formed in the first region.

Next, in order to solve the above-mentioned problems, a different mode of the electro-optical device of the present invention is provided with a dispersion medium, electrophoretic particles, and a first area capable of displaying for each display unit.
The first electrode on which the energization control is performed for each display unit and the second region different from the first region are formed on the visible surface of the pair of substrates, and the background of the display in the first region is formed. A colored layer having substantially the same color as the color or substantially the same color as the display color is provided.

In this case, for example, the white display is used as the background color and the black display is used as the display color in the first region, and correspondingly, the visual recognition of the pair of substrates is performed in the second region for the purpose of improving the contrast. A black colored layer having substantially the same color as the display color of the first region can be formed on the surface of the substrate provided on the side. Further, for example, for the purpose of constructing a bright display, a white colored layer having substantially the same color as the background color of the first region is formed on the surface of the substrate provided on the viewing side of the pair of substrates in the second region. You can also

When a colored layer is provided in the second region,
The first region is configured to include a plurality of pixels, and the second region is a first region.
It can be configured as a peripheral region formed around the region. Similarly, the first region may be configured to include a plurality of pixels, and the second region may be configured as a black matrix formed between the plurality of pixels.

In the electro-optical device of the present invention as described above, the second area is provided with a sealing material for preventing the migration medium and the electrophoretic particles from flowing out, and the sealing material has a background color of the first area. Coloring with substantially the same color or substantially the same color as the display color can be applied. By coloring such a sealing material in a color substantially the same as the background color or the display color, it is possible to provide a brighter or higher-contrast display.

Next, in order to solve the above problems, an electronic apparatus of the present invention is characterized by including the electro-optical device of the present invention as a display section. According to such electronic devices,
It is possible to provide a bright or high-contrast display.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In each drawing, in order to make each layer and each member recognizable in the drawing,
The scale is made different for each layer and each member.

FIG. 1 shows a first electro-optical device according to the present invention.
FIG. 2 is a schematic cross-sectional view showing the active matrix type electrophoretic display device which is the embodiment of the present invention, and FIG. 2 is a plan view showing a part of the electrophoretic display device shown in FIG. 1 in an enlarged manner. The electrophoretic display device 10 shown in these drawings includes an electrophoretic layer (electro-optical layer) 11 between the element substrate 8 and the counter substrate 1 which are arranged so as to face each other. The common electrode 2a is formed on the inner surface side (electrophoretic layer 11 side), and the plurality of pixel electrodes 7a and the TFT elements 7 are formed on the inner surface side (electrophoretic layer 11 side) of the element substrate 8.

On the opposite substrate 1 side, the opposite substrate 1
The common electrode 2a is transparent, and the outer surface of the first substrate 1 serves as the display surface of the electrophoretic display device 10.
Although not shown, various peripheral circuits for driving and controlling the TFT element 7 can be formed on the element substrate 8 having the TFT element 7. Further, in the present embodiment, the common electrode 2a is formed on the counter substrate 1 side and the TFT element 7 is formed on the element substrate 8 side, but the TFT element 7 may be formed on the counter substrate 1 side.

The counter substrate 1 can be composed of a transparent substrate such as transparent glass or a transparent film, and the element substrate 8 is not necessarily required to be transparent.
For example, a glass substrate or a resin film substrate can be used.

As shown in FIG. 1, the electrophoretic layer 11 is formed by dispersing a plurality of electrophoretic particles 6 in a dispersion medium 5. As the dispersion medium 5, water, methanol, ethanol,
Alcohol solvents such as isopropanol, butanol, octanol and methyl cellosolve, various esters such as ethyl acetate and butyl acetate, ketones such as acetone, methyl ethyl ketone and methyl isobutyl ketone, pentane,
Aliphatic hydrocarbons such as hexane and octane, alicyclic hydrocarbons such as cyclohexane and methylcyclohexane, benzene, toluene, xylene, hexylbenzene, hebutylbenzene, octylbenzene, nonylbenzene, decylbenzene, undecylbenzene , Dodecylbenzene, tridecylbenzene, tetradecylbenzene, and other aromatic hydrocarbons such as benzene having a long-chain alkyl group, methylene chloride, chloroform, carbon tetrachloride, halogenated hydrocarbons such as 1,2-dichloroethane, and carvone. It is possible to use an acid salt or other various oils alone or a mixture thereof with a surfactant and the like.

The electrophoretic particles 6 are organic or inorganic particles (polymer or colloid) having a property of moving in the dispersion medium 5 by electrophoresis due to a potential difference. For example, one kind or two or more kinds of white pigments such as titanium dioxide, zinc white, and antimony trioxide can be used. Further, these pigments may include, if necessary, an electrolyte, a surfactant, a metal soap, a resin, a rubber, an oil, a varnish, a charge control agent comprising particles such as a compound, a titanium-based coupling agent, and an aluminum-based coupling agent. A dispersant such as a silane coupling agent, a lubricant, and a stabilizer can be added.
The combination of the dispersion medium 5 and the electrophoretic particles 6 is not particularly limited, but the specific gravity of the dispersion medium 5 and the specific gravity of the electrophoretic particles 6 are set to be substantially equal in order to avoid sedimentation of the electrophoretic particles 6 due to gravity. Preferably.

In the case of the present embodiment, insulating dodecylbenzene is used as the dispersion medium 5, white charged particles of titanium oxide having a positive charge and black charged particles of carbon having a negative charge are used as the electrophoretic particles 6. A mixture of is used. The primary particle diameter of titanium oxide is 0.2 to 0.4 μ.
m, and the primary particle diameter of carbon is 10 to 80
nm. Carbon exists as secondary particles (about 100 nm to 1.5 μm) in which some primary particles are aggregated. When a voltage is applied to the electrodes, the white charged particles and the black charged particles are attracted to the electrodes having opposite polarities. Therefore, depending on the direction of the applied voltage, the black-and-white charged particles are arranged on the substrate provided with electrodes so as to face each other, and can be used as a display device having excellent contrast.

A color filter 3 having colored layers of different colors of red (R), green (G), and blue (B) is formed on the counter substrate 1, and the common electrode 2 is formed on the color filter 3.
a is formed. The common electrode 2a is made of ITO (Indium T
in Oxide).

Further, a partition wall 9 is provided between the element substrate 8 and the counter substrate 1 so as to form a plurality of partition regions in the in-plane direction of the substrate, and the partition region partitioned by the partition wall 9 has the above structure. It has a structure in which the electrophoretic particles 6 and the dispersion medium 5 are filled.

Next, the pixel electrodes 7a formed on the inner surface of the element substrate 8 are arranged in a matrix in a plan view, and are connected to the TFT elements 7.
As the TFT (thin film transistor) used in this case, for example, a TFT similar to a TFT used as a switching element of an electro-optical device such as a liquid crystal display device can be applied. The switching element used here is not limited to the TFT and may be an active element.

FIG. 2 shows an electrophoretic display device 1 of this embodiment.
A plurality of pixel electrodes 7a, TFT elements 7, data lines 20a, which are arranged in a matrix to form an image display region of 0,
The scanning line 21a and the like are shown. In the electrophoretic display device 10 of the present embodiment, the pixel electrode 7a as a transparent conductive layer and the energization control to the pixel electrode 7a are performed for a plurality of display units arranged in a matrix forming an image display region. The TFT elements 7 for the respective are formed, and the data line 20a to which the image signal is supplied is electrically connected to the source of the TFT element 7. The image signal to be written to the data lines 20a is line-sequentially supplied, or is supplied to each of a plurality of adjacent data lines 20a for each group.

Further, the scanning line 21a is electrically connected to the gate of the TFT element 7, and the scanning signal is line-sequentially supplied to the plurality of scanning lines 21a in a pulsed manner at a predetermined timing. Further, the pixel electrode 7a is electrically connected to the drain of the TFT element 7, and the image signal supplied from the data line 20a is written at a predetermined timing by turning on the TFT element 7 for a certain period. The image signal of a predetermined level written in the pixel electrode 7a is held with the common electrode 2a for a certain period. The electrophoretic particles 6 having an electric charge are attracted toward the pixel electrode 7a and the electrode of the common electrode 2a having a polarity opposite to that of the electrophoretic particles 6, and the color of the electrophoretic particles 6 and the color of the dispersion medium 5 are compared to each other. Enable key display.

As shown in FIG. 2, a plurality of pixel electrodes 7a are provided in a matrix on the substrate surface, and data lines 20a and scanning lines 21a are provided along the vertical and horizontal boundaries of the pixel electrodes 7a. There is. In this embodiment,
The display area formed in the area surrounded by the data lines 20a and the scanning lines 21a is a display unit (dot), and display is performed for each display unit arranged in a matrix. .

Further, the partition wall 9 is, as shown by the hatched portion in FIG. 2, a data line 20a which is a wiring, a scanning line 21a,
It is formed so as to overlap the TFT element 7 in plan view.
Further, as shown in FIG. 1, the partition wall 9 is a pixel electrode so as to partition the display unit of each color formed corresponding to each color of red (R), green (G), and blue (B) of the color filter. It is formed between 7a.

The electrophoretic display device 10 having the above structure.
Then, by applying an electric field between the pixel electrode 7a on the element substrate 8 side and the common electrode 2a on the counter substrate 1 side, the electrophoretic particles 6 of the electrophoretic layer 11 are caused to migrate, and the pixel electrode 7a
Binary or gradation display is performed according to the data signal supplied to the. That is, in the electrophoretic display device 10 of the present embodiment, how the electrophoretic particles 6 are distributed in the thickness direction of the electrophoretic layer 11 can be controlled by the electric field strength applied to the electrophoretic layer 11. ,
Therefore, the absorptance of the light reflected by the electrophoretic particles 6 can be adjusted, and as a result, the intensity of the light reaching the observer can be changed.

Next, FIG. 3 is a schematic plan view of the entire electrophoretic display device 10, and FIG. 4 is an enlarged schematic sectional view of a main part of the electrophoretic display device 10. As shown in FIG. 3, the electrophoretic display device 10 includes a pixel portion 17 including a plurality of pixel electrodes 7 a, and further, in the plane of the electrophoretic device 10, the pixel portion 17 can be included to perform pixel display. A pixel region (first region) 31 which is a different region, and a non-pixel region (second region) 32 formed outside the pixel region 31.
The pixel region 31 and the non-pixel region 32 form a display panel.

The pixel region 31 has the common electrode 2 as described above.
a is provided with a patterned pixel electrode 7a to perform unit display for each pixel portion 17, while the non-pixel region 32 is provided with the common electrode 2b and one electrode 43 in the plane. It is assumed that the energization control is performed uniformly.
In FIG. 4, the common electrodes 2a and 2b are the black matrix 3
m and the partition wall 9 are insulated and separated, but the black matrix 3m or the partition wall 9 is not provided, and each common electrode 2
a and 2b may be continuous. However, in that case, 2a,
Although 2b cannot be controlled by an independent potential, a simplified structure can be obtained. The electric potentials of the common electrodes 2a and 2b may be connected to the element substrate 8 by a vertical conductive agent such as silver paste so that the element substrate 8 is electrically connected to the outside. Although omitted in FIG. 4, a TFT is provided between the element substrate 8 and the electrode 43.
In some cases, the wiring (data line, scanning line, etc.) is arranged. Of course, in that case, it is electrically insulated by the insulating film.

As described above, the common electrode 2 in the pixel region 31
a, the pixel electrode 7a and the common electrode 2b in the non-pixel region 32,
It is possible to control energization separately from the electrode 43. In addition to the black matrix 3m or the partition walls 9, an insulating member may be provided at least on the element substrate 8 side, and the insulating strength according to the electric field strength can be maintained, or wiring such as data lines and scanning lines. When it is not necessary to hide the space, it may be omitted and only the space distance may be maintained.

In the non-pixel area 32, the background color (white display in this embodiment) of the pixel area 31 is substantially the same color,
Alternatively, it is possible to control the energization of each of the electrodes 2b and 43 in order to display a color substantially the same as the display color (black display in this embodiment). That is, the display of the non-pixel area 32 is changed to the pixel area 31.
In the case where the background color is set to be substantially the same as the background color, the electrodes 2b and 43 in the non-pixel region 32 are positively energized, and the display in the non-pixel region 32 is set to be substantially the same color as the display color in the pixel region 31. Negatively energize the electrodes 2b and 43 in the non-pixel region 32.

If the color is fixed in the non-pixel region 32, a constant voltage having a single polarity may be applied to the electrode 43 for display. Further, in some cases, when black-and-white switching display is performed, the voltage (signal) applied to the electrode 43 with a constant voltage of both polarities may be changed via a switching element such as a TFT.

With the above structure, even when a slight voltage is externally applied to the non-pixel region 32 due to static electricity or the like, halftone display may occur in the non-pixel region 32. If the background color is displayed in white in the pixel region 31 and the display color is displayed in black as in the present embodiment, and the black display is performed in the non-pixel region 32 correspondingly, a high-contrast display is obtained. If a white display is performed in the non-pixel region 32, a bright display can be constructed.

Next, a modification of the structure of the non-pixel area 32 will be described. FIG. 5 is a schematic sectional view showing a modification of the non-pixel region 32 in an enlarged manner.
In the configuration in which the electrodes are not provided, that is, the migration control of the electrophoretic particles 6 is not performed, the counter substrate 1 on the viewing side is colored in substantially the same color as the background color (white display in the present embodiment) of the pixel region 31. Layer 4 was formed.

Also in this case, since the colored layer 4 having substantially the same color as the background color of the pixel region 31 is formed, it is possible to provide a bright display based on white. The colored layer 4
Can be a colored layer having substantially the same color as the display color of the pixel region 31 (black display in the case of the present embodiment), and in this case as well, a high-contrast display can be obtained.

A colored layer 3d similar to the colored layer 4 may be formed on the counter substrate 1 side between the plurality of pixel portions 17 provided in the pixel region 31. Further, the sealing material 67 for preventing the dispersion medium 5 and the electrophoretic particles 6 from flowing out between the substrates can be colored in the same manner as the coloring layer 4. In this case, in the colored layer 3d and the sealing material 67, as in the case of the colored layer 4, it is possible to obtain a bright display based on white or a high contrast display based on black.

In the above-mentioned embodiment, the partition wall 9 is formed in order to prevent the electrophoretic particles 6 from being biased in the in-plane direction of the substrate. However, the partition wall 9 is composed of microcapsules 91 as shown in FIGS. 6 and 7, for example. It is also possible to form a partition in the plane of the substrate by the fine cells. FIG. 6 is a sectional view of an electrophoretic display device using the microcapsules 91, and FIG.
FIG. 3 is a plan view of the electrophoretic display device. In this case, outflow of the electrophoretic particles 6 and the dispersion medium 5 to the outside of the microcapsules 91 is prevented, and a problem such as partial deviation of the electrophoretic particles 6 within the substrate surface is unlikely to occur.

Next, the electrophoretic display device 1 of the above embodiment.
0 can be applied to various electronic devices including a display unit. Hereinafter, embodiments of an electronic device including the electrophoretic display device according to the invention will be described.

First, the electrophoretic display device 1 of the above embodiment.
An example in which 0 is applied to a mobile (portable) personal computer will be described. FIG. 8 is a perspective view showing the configuration of this personal computer. The personal computer 1200 is configured to include a main body 1202 including a keyboard 1203, and the electrophoretic display device 10 described above as a display 1201. There is.

Next, the electrophoretic display device 1 of the above embodiment.
An example in which 0 is applied to a mobile phone will be described. FIG. 9 is a perspective view showing the structure of this mobile phone.
00 is a plurality of operation buttons 1302, an earpiece 1303,
And a mouthpiece 1304, and the electrophoretic display device is provided as a small-sized display portion 1301.

Next, the electrophoretic display device 1 of the above embodiment.
An example in which 0 is applied to flexible electronic paper will be described. FIG. 10 is a perspective view showing the configuration of this electronic paper. The electronic paper 1400 is provided with a main body 1402 made of a rewritable sheet having the same texture and flexibility as conventional paper, The electrophoretic display device 10 is provided as the display unit 1401.

FIG. 11 is a perspective view showing the structure of the electronic notebook. In the electronic notebook 1500, a plurality of electronic papers 1400 shown in FIG.
It is sandwiched between. The cover 1501 includes display data input means (not shown) for inputting display data sent from an external device, for example. With this, according to the display data, the electronic paper remains bundled,
You can change or update the displayed contents.

In addition to the above-mentioned example, as another example, a liquid crystal television, a viewfinder type or a monitor direct-view type video tape recorder, a car navigation device, a pager, an electronic notebook, a calculator, a word processor, a workstation, a videophone. , POS terminals, devices equipped with a touch panel, and the like. The electrophoretic display device 10 according to the above-described embodiment of the present invention can be applied as a display unit of such an electronic device and can provide a high-contrast display. On the other hand, when applied to the electronic paper 1400, By setting the non-pixel area 32 to have substantially the same color as the main body 1402, it is possible to reproduce the image of one sheet of paper.

[0050]

As described above in detail, the electrophoretic display device according to the present invention is less likely to cause a defect such as halftone display in a non-pixel region due to static electricity or the like, and further, the pixel region Depending on the background color or display color,
If the display color in the non-pixel area is substantially the same as the display color, a high-contrast display can be obtained, and if the display color in the non-pixel area is substantially the same as the background color, a bright display can be constructed. be able to.

[Brief description of drawings]

FIG. 1 is a schematic partial cross-sectional view of an electrophoretic display device that is an embodiment of an electro-optical device of the present invention.

FIG. 2 is a partially enlarged plan view showing an enlarged main part of the electrophoretic display device shown in FIG.

3 is a schematic plan view of the entire electrophoretic display device shown in FIG.

FIG. 4 is a schematic cross-sectional view showing an enlarged main part of the electrophoretic display device shown in FIG.

5 is a schematic cross-sectional view showing a modified example of the main part of the electrophoretic display device shown in FIG.

FIG. 6 is a cross-sectional view showing a modified example of the electrophoretic display device.

FIG. 7 is a partially enlarged plan view showing an enlarged main part of the electrophoretic display device shown in FIG. 6.

FIG. 8 is a diagram showing an example of an electronic device according to the present invention.

FIG. 9 is a diagram showing an example of an electronic device according to the present invention.

FIG. 10 is a diagram showing an example of an electronic device according to the present invention.

FIG. 11 is a diagram showing an example of an electronic device according to the present invention.

[Explanation of symbols]

1 Counter substrate 8 element substrate 5 dispersion medium 6 Electrophoretic particles 7 TFT element 17 pixels 31 pixel area 32 Non-pixel area

Claims (7)

[Claims] 1. In an electro-optical device, a dispersion medium, electrophoretic particles, a first electrode provided in a first region capable of displaying for each display unit, and energization control is performed for each display unit, The first area is provided in a second area different from the first area.
An electro-optical device comprising: a second electrode for which energization control is performed separately from the electrode. 2. The electro-optical device according to claim 1, wherein the first region includes a plurality of pixels, and the second region is configured as a peripheral region formed around the first region, the second region An electro-optical device, wherein the electrode is energized so as to display in the second area a color substantially the same as a background color of the display in the first area or a color substantially the same as the display color. 3. In the electro-optical device, a dispersion medium, electrophoretic particles, a first electrode provided in a first region capable of displaying for each display unit, and energization control is performed for each display unit, In a second region different from the first region, a colored layer formed on a visible surface of the pair of substrates and having a color substantially the same as the background color of the display in the first region, or a color substantially the same as the display color, An electro-optical device comprising: 4. The electro-optical device according to claim 3, wherein the first region includes a plurality of pixels, and the second region is configured as a peripheral region formed around the first region. Characterized electro-optical device. 5. The electro-optical device according to claim 3, wherein the first region includes a plurality of pixels, and the second region is an inter-pixel region formed between the plurality of pixels. An electro-optical device characterized by being provided. 6. The electro-optical device according to claim 1, wherein the pair of substrates sandwiching the dispersion medium and the electrophoretic particles are provided in the second region, and the dispersion is provided. A sealing material for sealing the medium and the electrophoretic particles between the pair of substrates; and a coloring layer formed on the sealing material and having a color substantially the same as the background color of the first region or substantially the same as the display color. An electro-optical device characterized by: 7. An electronic apparatus comprising the electro-optical device according to claim 1 as a display unit.