JP2007199451A - Electrooptical device and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a horizontal electric field generated between adjacent pixel electrodes. <P>SOLUTION: In plane view, a notch part 29b1 is extended along an A1 direction intersecting with an X direction to which a second edge part 29a2 opposed to the notch part 29b1 through an interval is extended out of the second edge part 29a2 included in a pixel electrode 9a2. In the notch part 29b1, intervals t1, t2 between the adjacent pixel electrodes 9a1 and 9a2 are mutually different and the interval t2 is continuously varied along the X direction. Thereby, a horizontal electric field E1 generated between the pixel electrodes 9a1, 9a2 becomes uneven along the X direction, so that the influence of the horizontal electric field E1 on the orientation of liquid crystal molecules can be reduced and an after image and a tailing phenomenon which may be generated due to the horizontal electric field can be reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technical field of, for example, an electro-optical device such as a liquid crystal device and an electronic apparatus including such an electro-optical device.

  In a liquid crystal device which is an example of this type of electro-optical device, liquid crystal molecules interposed between these electrodes by applying a predetermined voltage between a pixel electrode and a counter electrode provided on each of a pair of substrates holding liquid crystal The orientation state is controlled, and an image is displayed.

  In this type of electro-optical device, a horizontal electric field generated between the pixel electrodes according to a difference in potential between pixel electrodes arranged adjacent to each other on the substrate (that is, an electric field parallel to the substrate surface or the substrate There may be a technical problem that alignment failure of liquid crystal molecules occurs due to an oblique electric field including a component parallel to the surface. Such a transverse electric field is applied to an electro-optic material such as a liquid crystal that is assumed to be applied with a vertical electric field (that is, an electric field perpendicular to the substrate surface) between the pixel electrode and the counter electrode facing each other. Then, the electro-optical material malfunctions such as a liquid crystal alignment defect, and there arises a problem that light is lost in this portion and the contrast is lowered.

  As an example of means for solving such a problem, Patent Document 1 includes a source line extending in parallel with the alignment direction of liquid crystal molecules in order to alleviate a lateral electric field in a region (domain) where alignment failure occurs. A liquid crystal display device is disclosed.

JP-A-9-61855

  In this type of electro-optical device, it is possible to alleviate a lateral electric field generated between pixel electrodes by increasing the interval between pixel electrodes. On the other hand, by increasing the interval between adjacent pixel electrodes, for example, ITO There is a problem in that the aperture ratio for each pixel, which is defined according to the size of the pixel electrode made of a transparent material such as the above, is lowered, and the contrast of the displayed image is lowered. Therefore, in consideration of avoiding a decrease in contrast, it is difficult to employ a means for increasing the interval between adjacent pixel electrodes as one of means for reducing the lateral electric field.

  In addition, in this type of electro-optical device, when a moving image is displayed, the afterimage and tailing of the image due to the influence of the lateral electric field (the moving object when displaying the moving image leaves an afterimage, Technology that reduces the horizontal electric field when displaying high-quality images, causing a problem that it is difficult to display high-quality images. The demand for is further increasing.

  Therefore, the present invention has been made in view of the above problems and the like, for example, display defects such as afterimage and tailing when displaying a moving image while suppressing a decrease in contrast occur. It is an object of the present invention to provide an electro-optical device such as a liquid crystal device and the like, and an electronic apparatus such as a projector including such an electro-optical device.

  In order to solve the above problems, an electro-optical device according to the present invention includes a pair of substrates, an electro-optical material sandwiched between the pair of substrates, and the one substrate on one substrate of the pair of substrates. A first pixel electrode and a second pixel electrode which are arranged adjacent to each other with a gap as viewed from a direction along a normal line on the substrate surface and to which different potentials are supplied. At least a part of the first edge part of the one pixel electrode is a second part that faces the part of the edge part of the second pixel electrode with the interval as viewed from the direction along the normal line. The edge extends along a second direction intersecting the first direction.

  With the electro-optical device according to the present invention, an electro-optical material such as liquid crystal is sandwiched between a pair of substrates. On one substrate, a first pixel electrode and a second pixel that are arranged adjacent to each other with an interval in plan view, and that are supplied with different potentials when the electro-optical device is driven. Electrodes are disposed.

  Here, “different potentials are supplied” is not limited to the case where different potentials are supplied to the first pixel electrode and the second pixel electrode according to the image signal from the drive circuit, For example, it includes a case where different potentials are supplied to the first pixel electrode and the second pixel electrode as a result of differences in wiring resistance of wirings for supplying the potential to the first pixel electrode and the second pixel electrode, respectively.

  The first pixel electrode and the second pixel electrode are, for example, a plurality of pixel electrodes arranged in a matrix on one substrate which is a TFT array substrate on which semiconductor elements such as TFTs, data lines, scanning lines, and the like are formed. Two pixel electrodes arranged adjacent to each other. One of the substrates may be a transparent substrate such as a glass substrate or a quartz substrate and a multilayer structure including an insulating film formed on the transparent substrate.

  In the electro-optical device according to the aspect of the invention, a lateral electric field corresponding to the potential difference between the first pixel electrode and the second pixel electrode is generated between the first pixel electrode and the second pixel electrode during the driving thereof. More specifically, between the first edge part of the first pixel electrode and the second edge part of the edge part of the second pixel electrode facing the at least part of the first edge part with an interval. Produces a transverse electric field.

  According to the electro-optical device according to the aspect of the invention, at least a part of the first edge is opposed to a part of the first edge with a space among the edges of the second pixel electrode when seen in a plan view. The second edge extends along a second direction that intersects the first direction. Accordingly, the distance between at least a part of the first edge and the second edge is continuously different along the first direction, and the electric field intensity distribution generated between the first edge and the second edge is not uniform. become. According to such non-uniformity of the electric field strength, when the first edge extends along the first direction, that is, when the first edge and the second edge extend parallel to each other, A lateral electric field generated between the first pixel electrode and the second pixel electrode disposed adjacent to each other can be reduced.

  In addition, according to the electro-optical device according to the invention, at least a part of the first edge portion extends along the second direction to such an extent that the electric field strength distribution between the first pixel electrode and the second pixel electrode can be made non-uniform. Since it only needs to be extended, it is possible to suppress the decrease in the aperture ratio to a range that does not substantially affect the contrast of the image quality.

  As described above, according to the electro-optical device according to the present invention, the lateral electric field can be relaxed while suppressing the decrease in the aperture ratio. Display problems such as afterimages and tailing can be reduced.

  In one aspect of the electro-optical device according to the aspect of the invention, the part may be a notch portion in which at least one of both ends of the first edge portion is notched.

  According to this aspect, it is possible to suppress a decrease in the aperture ratio in the pixel including the first pixel electrode, compared to the case where the notch is provided near the center of the first edge.

  In another aspect of the electro-optical device according to the invention, the other portion of the first edge portion excluding the notch extends along the first direction, and extends along the first direction. The other part extending may occupy 1/3 or less of the first edge.

  According to this aspect, the other part extends along the second edge, and the distance between the other part and the second edge is constant. When such a fixed interval occupies 1/3 or less of the first edge along the first direction, the gap between the first pixel electrode and the second pixel electrode is such that no afterimage and tailing occur. The electric field intensity distribution in can be made non-uniform, and the transverse electric field can be sufficiently relaxed.

  In another aspect of the electro-optical device according to the aspect of the invention, the other part of the first edge except the part may be in the first direction and the second direction when viewed from the direction along the normal line. You may extend along the 3rd direction which crosses each.

  According to this aspect, the distance between the second edge and a part of the first edge and the other part is different along the first direction, and is sandwiched between the first edge and the second edge. The electric field strength distribution can be made nonuniform in the entire region.

  In another aspect of the electro-optical device according to the invention, on the one substrate, the conductive portion formed in a layer different from the layer in which the first pixel electrode is formed and the first pixel electrode are electrically connected. The connecting portion may include a part of the connecting portion, and the connecting portion may be provided on a convex portion that protrudes toward the second pixel electrode when viewed from the first pixel electrode.

  According to this aspect, an electrical connection portion such as a contact hole can be provided in a part provided to alleviate the lateral electric field.

  In another aspect of the electro-optical device according to the invention, a light-shielding film may be provided that overlaps the first edge and the second edge when viewed from the direction along the normal.

  According to this aspect, light leakage caused by a transverse electric field applied to an electro-optical material such as liquid crystal molecules can be reduced between the first edge and the second edge.

  In another aspect of the electro-optical device according to the aspect of the invention, a third edge portion of the edge portion of the second pixel electrode that faces the second edge portion when viewed from the direction along the normal line is the method described above. You may extend along the 4th direction which crosses the 1st direction seeing from the direction along a line.

  According to this aspect, the electric field strength of the lateral electric field generated between the third edge far from the first edge of the first pixel electrode and the first edge among the edges of the second pixel electrode. Distribution can be non-uniform.

  In another aspect of the electro-optical device according to the invention, the electro-optical device includes the counter electrode that is formed on the other substrate of the pair of substrates and faces the first pixel electrode and the second pixel electrode, The different potentials may be different in polarity with respect to the common potential supplied to the counter electrode.

  According to this aspect, for example, even when an inversion driving method is employed in which the polarity of the potential applied to each pixel electrode is reversed according to a predetermined rule with respect to the reference potential of the counter electrode, the lateral electric field can be relaxed, and the afterimage and tail Pull can be reduced. As such an inversion driving method, for example, while performing display corresponding to an image signal of one frame or field, the pixel electrodes arranged in odd rows are driven at a positive potential with respect to a predetermined reference potential. During the display corresponding to the image signal of the next frame or field after driving the pixel electrodes arranged in the even rows with a negative potential with respect to the reference potential, the pixels are arranged in the even rows. The pixel electrodes are driven with a positive potential and the pixel electrodes arranged in the odd-numbered rows are driven with a negative potential (that is, the pixel electrodes in the same row are driven with the same polarity potential while the potential polarity is changed). A 1H inversion driving method in which the inversion is performed every frame or field period), a 1S inversion driving method in which each column is inverted, or a dot inversion method in which the polarity of the potential is inverted for each pixel can be adopted. According to this aspect, even when a moving image is displayed using such an inversion driving method, the occurrence of afterimages and tailing can be effectively reduced.

  In order to solve the above problems, an electronic apparatus according to the present invention includes the above-described electro-optical device of the present invention.

  According to the electronic apparatus according to the present invention, since the electro-optical device according to the present invention described above is provided, a projection display device, a mobile phone, an electronic notebook, a word processor, and a viewfinder type capable of high-quality display. Alternatively, various electronic devices such as a monitor direct-view video tape recorder, a workstation, a videophone, a POS terminal, and a touch panel can be realized. In addition, as an electronic apparatus according to the present invention, for example, an electrophoretic device such as electronic paper can be realized.

  Such an operation and other advantages of the present invention will become apparent from the embodiments described below.

  Hereinafter, embodiments of an electro-optical device and an electronic apparatus according to the invention will be described with reference to the drawings.

<1: Electro-optical device>
<1-1: Overall Configuration of Electro-Optical Device>
First, an electro-optical device according to this embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a plan view of the electro-optical device when the TFT array substrate is viewed from the counter substrate side together with the components formed thereon, and FIG. 2 is a cross-sectional view taken along line HH ′ of FIG. In this embodiment, as an example of an electro-optical device, a TFT active matrix driving type liquid crystal device with a built-in driving circuit is taken as an example.

  1 and 2, in the liquid crystal device 1, a TFT array substrate 10 and a counter substrate 20 are disposed to face each other. A liquid crystal layer 50 is sealed between the TFT array substrate 10 and the counter substrate 20, and the TFT array substrate 10 and the counter substrate 20 are positioned around an image display region 10a that is a pixel region in which a plurality of pixel portions are provided. They are bonded to each other by a sealing material 52 provided in the sealing area.

  The sealing material 52 is made of, for example, an ultraviolet curable resin, a thermosetting resin, or the like for bonding the two substrates, and is applied on the TFT array substrate 10 in the manufacturing process and then cured by ultraviolet irradiation, heating, or the like. It is. In the sealing material 52, a gap material such as glass fiber or glass beads for dispersing the distance (inter-substrate gap) between the TFT array substrate 10 and the counter substrate 20 to a predetermined value is dispersed. That is, the electro-optical device according to the present embodiment is suitable for a small and enlarged display for a projector light valve.

  A light-shielding frame light-shielding film 53 that defines the frame area of the image display area 10a is provided on the counter substrate 20 side in parallel with the inside of the seal area where the sealing material 52 is disposed. However, part or all of the frame light shielding film 53 may be provided as a built-in light shielding film on the TFT array substrate 10 side. There is a peripheral area located around the image display area 10a. In other words, particularly in the present embodiment, when viewed from the center of the TFT array substrate 10, the distance from the frame light shielding film 53 is defined as the peripheral region.

  A data line driving circuit 101 and an external circuit connection terminal 102 are provided along one side of the TFT array substrate 10 in a region located outside the sealing region in which the sealing material 52 is disposed in the peripheral region. The scanning line driving circuit 104 is provided along two sides adjacent to the one side so as to be covered with the frame light shielding film 53. Further, in order to connect the two scanning line driving circuits 104 provided on both sides of the image display area 10 a in this way, a plurality of the pixel lines are covered along the remaining side of the TFT array substrate 10 and covered with the frame light shielding film 53. Wiring 105 is provided.

  Vertical conductive members 106 functioning as vertical conductive terminals between the two substrates are disposed at the four corners of the counter substrate 20. On the other hand, the TFT array substrate 10 is provided with vertical conduction terminals in a region facing these corner portions. Thus, electrical conduction can be established between the TFT array substrate 10 and the counter substrate 20.

  In FIG. 2, on the TFT array substrate 10, an alignment film is formed on the pixel electrode 9a after the formation of TFTs as pixel switching elements, wiring lines such as scanning lines and data lines. On the other hand, on the counter substrate 20, in addition to the counter electrode 21, a lattice-shaped or striped light-shielding film 23 and an alignment film are formed on the uppermost layer portion. The liquid crystal layer 50 is made of, for example, a liquid crystal in which one or several types of nematic liquid crystals are mixed, and takes a predetermined alignment state between the pair of alignment films.

  The TFT array substrate 10 is, for example, a transparent substrate such as a quartz substrate or a glass substrate, or a semiconductor substrate such as a silicon substrate. The counter substrate 20 is also a transparent substrate like the TFT array substrate 10.

  The TFT array substrate 10 is provided with a pixel electrode 9a, and an alignment film on which a predetermined alignment process such as a rubbing process has been performed is provided above the pixel electrode 9a. For example, the pixel electrode 9a is made of a transparent conductive film such as an ITO (Indium Tin Oxide) film, and the alignment film is an organic film such as a polyimide film. The alignment film may be an inorganic alignment film formed by using oblique deposition.

  A counter electrode 20 is provided over the entire surface of the counter substrate 20, and an alignment film 22 is provided below the counter electrode 21. The counter electrode 21 is made of a transparent conductive film such as an ITO film. The alignment film 22 is formed by the same material and film formation method as the alignment film 16.

  The counter substrate 20 may be provided with a lattice-shaped or striped light-shielding film. By adopting such a configuration, it is possible to more reliably prevent the incident light from the TFT array substrate 10 side from entering the channel region 1a ′ or its periphery.

  A liquid crystal layer 50 is formed between the TFT array substrate 10 and the counter substrate 20 that are configured as described above and are arranged so that the pixel electrode 9a and the counter electrode 21 face each other. The liquid crystal layer 50 takes a predetermined alignment state by the alignment film in a state where an electric field is not applied from the pixel electrode 9a.

  1 and 2, on the TFT array substrate 10, in addition to the drive circuits such as the data line drive circuit 101 and the scanning line drive circuit 104, the image signal on the image signal line is sampled to obtain data. Sampling circuit that supplies lines, precharge circuit that supplies pre-charge signals of a predetermined voltage level to multiple data lines in advance of image signals, inspection of quality, defects, etc. of the electro-optical device during production or shipment An inspection circuit or the like may be formed.

<1-2: Electrical Connection Configuration of Pixel Unit>
Next, the electrical connection configuration of the pixel portion of the liquid crystal device 1 will be described in detail with reference to FIG. FIG. 3 is an equivalent circuit of various elements, wirings, and the like in a plurality of pixels formed in a matrix that forms the image display area of the liquid crystal device 1.

  In FIG. 3, a pixel electrode 9 a and a TFT 30 are formed in each of a plurality of pixels formed in a matrix that forms an image display area of the liquid crystal device 1. The TFT 30 is electrically connected to the pixel electrode 9a, and performs switching control of the pixel electrode 9a when the liquid crystal device 1 operates. The data line 6a to which the image signal is supplied is electrically connected to the source of the TFT 30. The image signals S1, S2,..., Sn to be written to the data lines 6a may be supplied line-sequentially in this order, or may be supplied for each group to a plurality of adjacent data lines 6a. May be.

  The scanning line 11a is electrically connected to the gate of the TFT 30, and the liquid crystal device 1 line-sequentially applies the scanning signals G1, G2,..., Gm to the scanning line 11a in a pulsed manner at a predetermined timing. It is comprised so that it may apply. The pixel electrode 9a is electrically connected to the drain of the TFT 30, and the image signal S1, S2,... Supplied from the data line 6a is closed by closing the switch of the TFT 30 serving as a switching element for a certain period. Sn is written at a predetermined timing. A predetermined level of image signals S1, S2,..., Sn written in the liquid crystal as an example of the electro-optical material via the pixel electrode 9a is held for a certain period with the counter electrode formed on the counter substrate. The

  The liquid crystal modulates light and enables gradation display by changing the orientation and order of the molecular assembly depending on the applied voltage level. In the normally white mode, the transmittance for incident light is reduced according to the voltage applied in units of each pixel, and in the normally black mode, the light is incident according to the voltage applied in units of each pixel. The transmittance for light is increased, and light having a contrast corresponding to an image signal is emitted from the electro-optical device as a whole. In order to prevent the image signal held here from leaking, a storage capacitor 70 is added in parallel with the liquid crystal capacitor formed between the pixel electrode 9a and the counter electrode. Thereby, the potential holding characteristic in the pixel electrode 9a is improved, and display characteristics such as contrast and flicker can be improved.

<1-3: Specific Configuration of Electro-Optical Device>
Next, a specific configuration of the liquid crystal device 1 that realizes the above-described operation will be described with reference to FIGS.

  4 to 6, the circuit element and the pixel electrode 9 a described above are formed on the TFT array substrate 10. The TFT array substrate 10 is made of, for example, a glass substrate, a quartz substrate, an SOI substrate, a semiconductor substrate, and the like, and is disposed to face the counter substrate 20 made of, for example, a glass substrate or a quartz substrate. The circuit elements are provided to drive the pixel electrodes 9a. Here, the circuit elements are stacked in a range from directly above the TFT array substrate 10 to immediately below the pixel electrodes 9a, from the scanning line 11a to the fourth interlayer insulating film 44. Pointing (see FIG. 6). The pixel electrode 9a (the outline is indicated by a broken line 9a 'in FIG. 5) is arranged in each of the pixel areas partitioned and arranged vertically and horizontally, and the data lines 6a and the scanning lines 11a are arranged in a grid at the boundary. (See FIGS. 4 and 5).

  The patterned conductive film constituting each circuit element includes, in order from the bottom, a first layer including the scanning line 11a, a second layer including the gate electrode 3a, a third layer including the fixed potential side capacitor electrode of the storage capacitor 70, and data A fourth layer including the line 6a and the like, and a fifth layer including the capacitor wiring 400 which is an example of the “light-shielding film” of the present invention. Further, the base insulating film 12 is provided between the first layer and the second layer, the first interlayer insulating film 41 is provided between the second layer and the third layer, the second interlayer insulating film 42 is provided between the third layer and the fourth layer, and the fourth layer. A third interlayer insulating film 43 is provided between the layer and the fifth layer, and a fourth interlayer insulating film 44 is provided between the fifth layer and the pixel electrode 9a to prevent the above-described elements from being short-circuited. . Of these, the first to third layers are shown in FIG. 4 as lower layer portions, and the fourth layer, the fifth layer, and the pixel electrode 9a are shown in FIG. 5 as upper layer portions.

<Structure of first layer-scanning line, etc .->
The first layer is composed of scanning lines 11a. The scanning line 11a is patterned into a shape including a main line portion extending in the X direction in FIG. 4 and a protruding portion extending in the Y direction in FIG. 4 in which the data line 6a or the capacitor wiring 400 extends. Such a scanning line 11a is made of, for example, conductive polysilicon, and in addition, a metal simple substance, an alloy, a metal silicide, a polysilicon containing at least one of refractory metals such as Ti, Cr, W, Ta, and Mo. It can be formed of silicide or a laminate thereof.

<Configuration of second layer-TFT, etc.->
The second layer includes the TFT 30 and the relay electrode 719. The TFT 30 has an LDD (Lightly Doped Drain) structure, for example, and includes a gate electrode 3a, a semiconductor layer 1a, and an insulating film 2 including a gate insulating film that insulates the gate electrode 3a from the semiconductor layer 1a. The gate electrode 3a is made of, for example, conductive polysilicon. The semiconductor layer 1a includes a channel region 1a ′, a low concentration source region 1b and a low concentration drain region 1c, and a high concentration source region 1d and a high concentration drain region 1e. The TFT 30 preferably has an LDD structure. However, the TFT 30 may have an offset structure in which no impurity is implanted into the low concentration source region 1b and the low concentration drain region 1c. It may be a self-aligned type in which a high concentration source region and a high concentration drain region are formed by implanting the film. The relay electrode 719 is formed as the same film as the gate electrode 3a, for example.

  The gate electrode 3 a of the TFT 30 is electrically connected to the scanning line 11 a through a contact hole 12 cv formed in the base insulating film 12. The base insulating film 12 is made of, for example, a silicon oxide film, and is formed on the entire surface of the TFT array substrate 10 in addition to the interlayer insulating function between the first layer and the second layer. Has a function of preventing changes in the element characteristics of the TFT 30 caused by the above.

<Configuration of third layer-storage capacity, etc.->
The third layer is composed of a storage capacitor 70. The storage capacitor 70 has a configuration in which a capacitor electrode 300 and a lower electrode 71 are arranged to face each other with a dielectric layer interposed therebetween. Among these, the capacitor electrode 300 is electrically connected to the capacitor wiring 400. The lower electrode 71 is electrically connected to each of the high concentration drain region 1e of the TFT 30 and the pixel electrode 9a.

  The lower electrode 71 and the high concentration drain region 1e are connected through a contact hole 83 opened in the first interlayer insulating film 41. Further, the lower electrode 71 and the pixel electrode 9a relay each layer by the contact holes 881, 882, and 804, the relay electrode 719, the second relay electrode 6a2, and the third relay electrode 402, and the “connection portion” of the present invention. Electrical connection is made at a contact hole 89 as an example.

  For example, conductive polysilicon is used for the capacitor electrode 300 and the lower electrode 71, and silicon oxide is used for the dielectric layer. The first interlayer insulating film 41 is made of, for example, NSG (non-silicate glass). In addition, for the first interlayer insulating film 41, silicate glass such as PSG (phosphorus silicate glass), BSG (boron silicate glass), BPSG (boron phosphorus silicate glass), silicon nitride, silicon oxide, or the like can be used.

  In this case, as can be seen from the plan view of FIG. 4, the storage capacitor 70 is formed so as not to reach the pixel region substantially corresponding to the formation region of the pixel electrode 9a (so as to be within the light shielding region). Therefore, the aperture ratio of the pixel is kept relatively large.

<Fourth layer configuration-data lines, etc .->
The fourth layer is composed of data lines 6a. The data line 6a is formed as a three-layer film of aluminum, titanium nitride, and silicon nitride in order from the bottom. The silicon nitride layer is patterned to a slightly larger size so as to cover the lower aluminum layer and titanium nitride layer. In the fourth layer, the capacitor wiring relay layer 6a1 and the second relay electrode 6a2 are formed as the same film as the data line 6a. These are formed so as to be divided as shown in FIG.

  The data line 6 a is electrically connected to the high concentration source region 1 d of the TFT 30 through a contact hole 81 that penetrates the first interlayer insulating film 41 and the second interlayer insulating film 42.

  The capacitor wiring relay layer 6a1 is electrically connected to the capacitor electrode 300 through a contact hole 801 formed in the second interlayer insulating film 42, and relays between the capacitor electrode 300 and the capacitor wiring 400. . As described above, the capacitor wiring relay layer 6 a 2 is electrically connected to the relay electrode 719 through the contact hole 882 that penetrates the first interlayer insulating film 41 and the second interlayer insulating film 42. Such an interlayer insulating film 42 can be formed of, for example, silicate glass such as NSG, PSG, BSG, or BPSG, silicon nitride, silicon oxide, or the like.

<Fifth layer configuration-capacity wiring, etc .->
The fifth layer is composed of the capacitor wiring 400 and the third relay electrode 402 which are examples of the “light-shielding film” of the present invention. The capacitor wiring 400 extends to the periphery of the image display area of the display panel, and is set to a fixed potential by being electrically connected to a constant potential source. As shown in FIG. 5, the capacitor wiring 400 is formed in a lattice shape extending in the X direction and the Y direction, and in order to secure a formation region of the third relay electrode 402 in a portion extending in the X direction. Notches are provided. In addition, the capacitor wiring 400 is formed wider than the structure of these circuit elements so as to cover the data line 6a, the scanning line 11a, the TFT 30, and the like in the lower layer. Thereby, each circuit element is shielded from light, and adverse effects such as reflection of incident light and blurring of pixel outlines in a projected image are prevented.

  Further, the corner portion where the X-direction extending portion and the Y-direction extending portion of the capacitor wiring 400 just intersect each other has a shape such that a substantially triangular collar portion protrudes slightly. With this flange, light can be effectively shielded from the semiconductor layer 1a of the TFT 30. That is, the light entering the semiconductor layer 1a from obliquely above is reflected or absorbed by the collar portion, thereby suppressing the occurrence of light leakage current in the TFT 30 and displaying a high-quality image free from flicker or the like. It becomes possible.

  Such a capacitive wiring 400 is electrically connected to the capacitive wiring relay layer 6a1 through a contact hole 803 opened in the third interlayer insulating film 43. In the fourth layer, the third relay electrode 402 is formed as the same film as the capacitor wiring 400. As described above, the third relay electrode 402 relays between the second relay electrode 6a2 and the pixel electrode 9a via the contact hole 804 and the contact hole 89. The capacitor wiring 400 and the third relay electrode 402 have a two-layer structure in which, for example, aluminum and titanium nitride are stacked.

  A fourth interlayer insulating film 44 is formed on the entire surface of the fourth layer. In the fourth interlayer insulating film 44, a contact hole 89 for electrically connecting the pixel electrode 9a and the third relay electrode 402 is opened.

  Next, a specific planar shape of the pixel electrode 9a will be described in detail with reference to FIG. In the present embodiment, for the sake of simplicity of explanation, four pixel electrodes arranged adjacent to each other in the pixel electrode 9a are taken as an example.

  In FIG. 5, among the pixel electrodes 9a arranged in different rows along the Y direction in the drawing, the pixel electrode 9a1 constituting the row along the X direction on the upper side in the drawing is the “th” of the present invention. The pixel electrode 9a2 that constitutes a row along the X direction on the lower side in the drawing is an example of the “second pixel electrode” in the present invention. As will be described in detail later, when the liquid crystal device 1 is driven, the pixel electrodes 9a1 and 9a2 are supplied with potentials having different polarities based on the potential supplied to the counter electrode 21.

  Each of the pixel electrode 9a1 and the pixel electrode 9a2 includes a first edge portion 29a1 and a second edge portion 29a2 that face each other.

  At both ends of the first edge portion 29a1, notched portions 29b1 are formed by partially cutting away the first edge portion 29a1. The notch 29b1 reduces a lateral electric field generated between the pixel electrodes 9a1 and 9a2, as will be described in detail later.

  The pixel electrode 9a1 includes a notch 29b1 and has a protrusion 9c that protrudes toward the pixel electrode 9a2 when viewed from the pixel electrode 9a1. The contact hole 89 is formed in the convex portion 9c and electrically connects the pixel electrode 9a1 and the third relay electrode 402 formed on the lower layer side of the pixel electrode 9a1. Here, since the notch 29b1 overlaps the capacitor wiring 400, the capacitor wiring 400 shields light leakage caused by providing the notch 29b1 in the pixel electrode 29b1, thereby suppressing a decrease in contrast. In addition, by providing the contact hole 89 in the convex portion 9c located in the non-opening region in the pixel, the pixel electrode 9a1 and the third relay electrode 402 are electrically connected without causing a decrease in the aperture ratio due to the contact hole 89. it can.

  Further, according to the liquid crystal device 1 according to the present embodiment, a decrease in the aperture ratio in the pixel including the pixel electrode 9a1 is effectively suppressed as compared with the case where the notch 29b1 is provided near the center of the first edge 29a1. it can.

<1-4: Driving Method of Liquid Crystal Device>
Next, an example of a method for driving the liquid crystal device 1 will be described with reference to FIG.

  Here, in this embodiment, the 1H inversion driving method is adopted as an example of the driving method of the liquid crystal device 1. A lateral electric field is generated between the pixel electrodes 9a. That is, during the image display period of the nth (where n is a natural number) field or frame, a voltage having a polarity different from that of the reference voltage is applied to each row of the pixel electrodes 9a arranged in parallel in the Y-axis direction. Thus, the pixel region is driven in a state where a liquid crystal driving voltage having a reverse polarity is applied to each row. This is shown in FIG. In the subsequent image display period of the (n + 1) th field or frame, the polarity of the liquid crystal driving voltage is inverted as shown in FIG. After the n + 2nd field or frame, the states shown in FIGS. 7A and 7B are periodically repeated. When the polarity of the voltage applied to the liquid crystal layer 50 is periodically reversed in this way, application of a DC voltage to the liquid crystal is prevented, and deterioration of the liquid crystal is suppressed. Further, since the polarity of the applied voltage is reversed for each row of the pixel electrodes 9a, crosstalk and flicker are reduced.

  With this method, the pixel electrodes 9a1 and 9a2 adjacent to each other in the Y-axis direction (that is, belonging to different rows) are driven with potentials having opposite polarities with respect to the reference voltage. An electric field called a transverse electric field having a component parallel to the substrate surface is generated. In addition, a horizontal electric field is also generated between the pixel electrodes 9a1 and 9a2 belonging to different columns among the pixel electrodes 9a in adjacent rows. Therefore, during the operation of the liquid crystal device 1, a lateral electric field is generated in the entire region along the region where the scanning line 11a indicated by C1 in the drawing extends. In this state, the regulation of the tilt angle of the liquid crystal molecules is hindered by the lateral electric field, and an afterimage and tailing occur when a moving image is displayed. Therefore, according to the pixel electrode 9a having a planar shape peculiar to the present embodiment, a lateral electric field generated between pixel electrodes arranged adjacent to each other can be reduced.

  The driving method for driving the liquid crystal device according to the present invention is not limited to the driving method for the liquid crystal device according to the present embodiment, and dot inversion driving in which the potential is inverted for each adjacent pixel electrode. Any other driving method may be used, and the effect of reducing the horizontal electric field can be obtained with any driving method as long as a horizontal electric field can be generated between adjacent pixel electrodes.

<1-5: Specific Planar Shape of Pixel Electrode>
Next, the lateral electric field strength distribution generated between the pixel electrodes provided in the liquid crystal device of the present embodiment will be described with reference to FIGS. FIG. 8 is a plan view schematically showing a specific planar shape and lateral electric field strength of the pixel electrode included in the liquid crystal device of this embodiment, and FIG. 9 is a specific example of the pixel electrode included in the liquid crystal device of this embodiment. It is the top view which showed typically the comparative example with respect to typical planar shape and lateral electric field strength.

  In FIG. 9, each of the pixel electrodes 49a1 and 49a2 arranged adjacent to each other has edges 59a1 and 59a2 facing each other when seen in a plan view. More specifically, each of the edges 59a1 and 59a2 extends along the X direction in the drawing and extends in parallel to each other. The potentials of the pixel electrodes 49a1 and 49a2 are set to a high potential (indicated by + in the drawing) and a low potential (indicated by-in the drawing), respectively, with respect to the potential of the counter electrode. A potential difference is generated between the pixel electrodes 49a2, and a horizontal electric field E2 is generated between the pixel electrodes 49a1 and 49a2 due to the potential difference. Here, since the extending directions of the edges 59a1 and 59a2 are parallel to each other, the interval T between the pixel electrodes 49a1 and 49a2 is uniform along the X direction. Therefore, the lateral electric field E2 is uniform between the pixel electrodes 49a1 and 49a2. According to the lateral electric field E2 having a uniform intensity distribution generated between the pixel electrodes 49a1 and 49a2, the alignment defect of the liquid crystal molecules interposed between the pixel electrodes 49a1 and 49a2 and the counter electrode is caused.

  Therefore, in FIG. 8, the cutout portion 29b1 formed in the first edge portion 29a1 facing the second edge portion 29a2 of the pixel electrode 9a2 in plan view has a lateral electric field generated between the pixel electrodes 9a1 and 9a2. The intensity distribution is made non-uniform, and the alignment failure of liquid crystal molecules is reduced.

  The cutout portion 29b1 faces the cutout portion 29b2 provided in the second edge portion 29a2 of the pixel electrode 9a2 in plan view, and is along the A1 direction intersecting with the X direction in which the second edge portion 29a2 extends. It extends. The X direction is an example of the “first direction” in the present invention, and the A1 direction is an example of the “second direction” in the present invention.

  As shown in FIG. 8, according to the notch 29b1, the intervals t1 and t2 between the adjacent pixel electrodes 9a1 and 9a2 are different from each other, and the interval t2 is continuously different along the X direction. Therefore, the lateral electric field E1 generated between the pixel electrodes 9a1 and 9a2 becomes non-uniform along the X direction, and affects the alignment of liquid crystal molecules relative to the lateral electric field E2 having a uniform intensity distribution shown in FIG. It is possible to reduce the influence, and it is possible to reduce the afterimage and tailing phenomenon caused by the transverse electric field.

  In addition, since the notches 29b1 and 29b2 are provided to avoid the vicinity of the center of each of the first edges 29a1 and 29a2, it is possible to suppress the decrease in the aperture ratio to a range that does not substantially affect the image quality. .

  As described above, according to the liquid crystal device according to the present embodiment, the lateral electric field can be relaxed while suppressing the decrease in the aperture ratio, and therefore, the decrease in the contrast due to the decrease in the aperture ratio is suppressed and the attribute is caused by the lateral electric field. Display problems such as afterimages and tailing can be reduced.

(Variation of pixel electrode)
Next, a modification of the pixel electrode provided in the liquid crystal device according to the present embodiment will be described with reference to FIGS. 10 to 12 are plan views illustrating modifications of the pixel electrode included in the liquid crystal device according to the present embodiment.

  In FIG. 10A, each of the pixel electrodes 201a1 and 201a2 disposed adjacent to each other in plan view has a first edge 202a1 and a second edge 202a2. In this example, the entire first edge 202a1 extends along the X2 direction that intersects the X1 direction in which the second edge 202a2 extends. Therefore, the interval t3 between the pixel electrodes 202a1 and 202a2 has a continuously different size along the X1 direction in the figure, and the lateral electric field E3 has a different intensity distribution along the X1 direction. . According to such a horizontal electric field intensity distribution, the horizontal electric field intensity can be relatively reduced as compared with the comparative example shown in FIG.

  In addition, among the edges of the pixel electrode 201a2, the third edge 202a2 facing the second edge 202a2 when viewed in plan intersects with the X1 direction when viewed in plan, the “fourth direction” of the present invention. It extends along the X2 direction which is also an example. Therefore, the intensity distribution of the lateral electric field generated between the third edge 202a3 on the side far from the first edge 202a1 of the pixel electrode 201a1 and the first edge 202a1 among the edges of the pixel electrode 201a2 is also obtained. Non-uniformity can be achieved, and the afterimage and tailing caused by the transverse electric field can be further reduced.

  A contact hole 289 is formed in the convex portion 209c of the pixel electrode 9a. Similar to the contact hole 89 shown in FIGS. 4 to 6, the contact hole 289 electrically connects the pixel electrode 201a1 and the third relay electrode 402 formed on the lower layer side thereof.

  In FIG. 10B, each of the pixel electrodes 211a1 and 211a2 disposed adjacent to each other in plan view has a first edge 212a1 and a second edge 212a2. In this example, the pixel electrode 211a1 has a first edge 212a1 including a first portion 214b1 and a second portion 214b2. The first part 214b1 is an example of the “part” of the present invention, and the second part 214b2 is an example of the “other part” of the present invention.

  The first portion 214b1 extends along the X3 direction that intersects the X1 direction in which the second edge 212a2 extends, and the second portion 214b2 extends along the X2 direction that intersects the X1 direction. The distance t4 between the pixel electrodes 211a1 and 211a2 on the both sides of the center of the pixel electrode 211a1 in plan view has a continuously different size along the X1 direction. Therefore, the lateral electric field E4 has different intensity distributions along the X1 direction. According to such a horizontal electric field intensity distribution, the horizontal electric field intensity can be relatively reduced as compared with the comparative example shown in FIG. In addition, since the third edge 212a3 of the pixel electrode 211a2 has a portion extending in the direction intersecting with the X1 direction when seen in a plan view, the intensity distribution of the lateral electric field generated between the first edge 212a1 and the third edge 212a3 It is possible to make it more non-uniform, and it is possible to further reduce the afterimage and tailing caused by the transverse electric field.

  In FIG. 10C, each of the pixel electrodes 221a1 and 221a2 disposed adjacent to each other in plan view has a first edge 222a1 and a second edge 222a2. In this example, the pixel electrode 221a1 has a first edge 222a1 including a first portion 224b1 and a second portion 224b2.

  The first portion 224b1 extends along the X2 direction that intersects the X1 direction in which the second edge 222a2 extends, and the second portion 214b2 extends along the X3 direction that intersects the X1 direction. The distance t5 between the pixel electrodes 221a1 and 221a2 on the both sides of the center of the pixel electrode 221a1 viewed in a plan view has continuously different sizes along the X1 direction. Therefore, the lateral electric field E5 has different intensity distributions along the X1 direction. According to such a horizontal electric field intensity distribution, the horizontal electric field intensity can be relatively reduced as compared with the comparative example shown in FIG. In addition, since the third edge 222a3 of the pixel electrode 221a2 has a portion extending in the direction intersecting the X1 direction when seen in a plan view, the intensity distribution of the transverse electric field generated between the first electrode 222a1 and the first edge 222a1. Can be made more non-uniform, and the afterimage and tailing caused by the transverse electric field can be further reduced.

  In FIG. 11A, each of the pixel electrodes 231a1 and 231a2 disposed adjacent to each other in plan view has a first edge 232a1 and a second edge 232a2. In this example, the pixel electrode 231a1 has a first edge 232a1 in which the first portions 234b1 and the second portions 234b2 are alternately formed.

  The first portion 234b1 extends along the X2 direction that intersects the X1 direction in which the second edge 232a2 extends, and the second portion 234b2 extends along the X3 direction that intersects the X1 direction. The interval t6 between the pixel electrodes 231a1 and 231a2 has different sizes continuously along the X1 direction. Therefore, the lateral electric field E6 has different strengths along the X1 direction. According to such a horizontal electric field intensity distribution, the horizontal electric field intensity can be relatively reduced as compared with the comparative example shown in FIG. In addition, since the third edge 232a3 of the pixel electrode 231a2 has portions extending in the directions intersecting with each other in the X1 direction when seen in a plan view, the intensity of the lateral electric field generated between the first edge 232a1 and the third edge 232a3 The distribution can be made more uneven, and the afterimage and tailing caused by the transverse electric field can be further reduced.

  In FIG. 11B, each of the pixel electrodes 241a1 and 241a2 disposed adjacent to each other in plan view has a first edge 242a1 and a second edge 242a2. In this example, the pixel electrode 241a1 has a first edge portion 242a1 that is defined by a curve including a first portion 244b1 and a second portion 244b2 when viewed locally. When each of the first portion 244b1 and the second portion 244b2 is locally seen, each of the first portion 244b1 and the second portion 244b2 extends along a direction intersecting with the X1 direction in which the second edge portion 242a2 extends.

  According to the second edge portion 242a1 having a curved shape including the first portion 244b1 and the second portion 244b2, the interval t7 between the pixel electrodes 241a1 and 241a2 has continuously different sizes along the X1 direction. . Therefore, the lateral electric field E7 has different intensities along the X1 direction. According to such a horizontal electric field intensity distribution, the horizontal electric field intensity can be relatively reduced as compared with the comparative example shown in FIG. In addition, the third edge 242a3 included in the pixel electrode 241a2 has a curved shape including portions extending in the X1 direction when seen in a plan view, and thus occurs between the third edge 242a1 and the first edge 242a1. The intensity distribution of the transverse electric field can be made more non-uniform, and the afterimage and tailing caused by the transverse electric field can be further reduced.

  In FIG. 11C, each of the pixel electrodes 251a1 and 251a2 disposed adjacent to each other in plan view has a first edge 252a1 and a second edge 252a2. In this example, the first edge 252a1 includes a first portion 254b1 and a second portion 254b2, and the second edge 252a2 includes a third portion 254b3 and a fourth portion 254b4.

  The first portion 254b1 and the third portion 254b3 are opposed to each other with an interval in plan view. The first portion 254b1 extends along the X2 direction that intersects the X1 direction in which the third portion 254b2 extends. The second portion 254b2 and the fourth portion 254b4 are opposed to each other with an interval in plan view. The second portion 254b2 extends along the X3 direction that intersects the X4 direction in which the fourth portion 254b4 extends. Therefore, the interval t8 between the pixel electrodes 251a1 and 251a2 is continuously different from each other along the horizontal direction in the drawing.

  Accordingly, the lateral electric field E8 has different strengths in each region between the pixel electrodes 251a1 and 251a2. According to such a horizontal electric field intensity distribution, the horizontal electric field intensity can be relatively reduced as compared with the comparative example shown in FIG. In addition, the third edge 252a3 included in the pixel electrode 251a2 has a portion extending in a direction intersecting with a direction in which each of the first portion 254b1 and the second portion 254b2 extends when seen in a plan view. The intensity distribution of the transverse electric field generated between the portion 252a1 can be made more non-uniform, and the afterimage and tailing caused by the transverse electric field can be further reduced.

  In FIG. 12A, each of the pixel electrodes 261a1 and 261a2 disposed adjacent to each other in plan view has a first edge 262a1 and a second edge 262a2. In this example, the first edge 262a1 includes a first portion 264b1 and a second portion 264b2, and the second edge 262a2 includes a third portion 264b3 and a fourth portion 264b4. The first edge portion 262a1 has a curved shape composed of a first portion 264b1 and a second portion 264b2, and the second edge portion 262a2 has a curved shape composed of a third portion 264b3 and a fourth portion 264b4. Yes.

  The first portion 264b1 and the third portion 264b3 are opposed to each other with an interval in plan view. The second portion 264b2 and the fourth portion 264b4 are opposed to each other with an interval when seen in a plan view. The interval t9 between the pixel electrodes 261a1 and 261a2 according to the extending direction of each of the first part 264b1, the second part 264b2, the third part 264b3, and the fourth part 264b4 is set to the first edge part 262a1 and the second edge part 262a2. Is periodically different.

  Accordingly, the lateral electric field E9 has different strengths along the first edge 262a1 and the second edge 262a2. According to such a horizontal electric field intensity distribution, the horizontal electric field intensity can be relatively reduced as compared with the comparative example shown in FIG.

  In FIG. 12B, each of the pixel electrodes 271a1 and 271a2 arranged adjacent to each other in plan view has a first edge 272a1 and a second edge 272a2. The planar shape of the pixel electrode 271a1 is a hexagon including a first portion 272b1 extending along the X2 direction and a second portion 272b2 extending along the X1 direction. The planar shape of the pixel electrode 271a2 is a hexagon including a third portion 272b3 extending along the X4 direction and a fourth portion 272b4 extending along the X1 direction.

  In this example, the second portion 272b2 that is the other portion of the first edge portion 272a1 excluding the first portion 272b1 that is the cutout portion of the first edge portion 272a1 extends along the X1 direction. In addition, the width W2 of the second portion 272b2 occupies a portion of 1/3 or less of the width of the first edge portion 272a1 (the width W1 of the first portion 272b1 + the width W2 of the second portion 272b2) along the X1 direction. Yes.

  More specifically, a region where the distance between the pixel electrodes 271a1 and 271a2 is constant along the second portion 272b2 and the fourth portion 272b4 is 1/3 of the entire width of the first edge portion 271a1 along the X1 direction. It occupies the following. Accordingly, the interval t8 between the pixel electrodes 271a1 and 271a2 is different from each other along the X1 direction. Therefore, according to the planar shape of the pixel electrode of this example, the lateral electric field E10 has a different intensity distribution along the X1 direction, which is relatively horizontal compared to the comparative example shown in FIG. Electric field strength can be reduced. More specifically, according to the pixel electrodes 271a1 and 271a2 of this example, the electric field strength between the first pixel electrode and the second pixel electrode can be made non-uniform, and the lateral electric field can be sufficiently relaxed. Thereby, the occurrence of afterimages and tailing can be reduced.

<2: Electronic equipment>
Next, a case where the liquid crystal device described in detail above is applied to an electronic device will be described.

  Here, a projector using the liquid crystal device as the electro-optical device as a light valve will be described. FIG. 13 is a plan view showing a configuration example of the projector. As shown in this figure, a lamp unit 1102 including a white light source such as a halogen lamp is provided inside the projector 1100. The projection light emitted from the lamp unit 1102 is separated into three primary colors of RGB by four mirrors 1106 and two dichroic mirrors 1108 arranged in the light guide, and liquid crystal as a light valve corresponding to each primary color. Incident to devices 100R, 100B, and 100G. The configurations of the liquid crystal devices 100R, 100B, and 100G are the same as those of the above-described liquid crystal device, and R, G, and B primary color signals supplied from the image signal processing circuit are modulated in each. Light modulated by these liquid crystal devices is incident on the dichroic prism 1112 from three directions. In the dichroic prism 1112, R and B light is refracted at 90 degrees, while G light goes straight. As a result, the images of the respective colors are combined, and a color image is projected onto the screen 1120 and the like via the projection lens 1114.

  In the above, a liquid crystal device has been described as a specific example of the electro-optical device of the present invention. However, the electro-optical device of the present invention also uses an electrophoretic device such as electronic paper or an electron-emitting device. It can be realized as a display device (Field Emission Display and Surface-Conduction Electron-Emitter Display). In addition to the projector described above, the electro-optical device of the present invention includes a television receiver, a viewfinder type or a monitor direct-view type video tape recorder, a car navigation device, a pager, and an electronic notebook. It can be applied to various electronic devices such as a calculator, a word processor, a workstation, a video phone, a POS terminal, and a device having a touch panel.

  The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit or idea of the invention that can be read from the claims and the entire specification, and an electro-optical device with such a change, In addition, an electronic apparatus including such an electro-optical device is also included in the technical scope of the present invention.

1 is a plan view of an electro-optical device according to an embodiment. It is HH 'sectional drawing of FIG. 4 is an equivalent circuit of various elements and wirings in a plurality of pixels constituting an image display region of the electro-optical device according to the embodiment. FIG. 2 is a partial plan view illustrating a specific configuration of the electro-optical device illustrated in FIG. 1. FIG. 2 is a partial plan view illustrating a specific configuration of the liquid crystal device illustrated in FIG. 1. It is AA 'sectional drawing of FIG.4 and FIG.5. It is a figure for demonstrating the operation state in the 1H inversion drive system of the electro-optical apparatus in this embodiment. 5 is a plan view schematically showing a specific planar shape and lateral electric field strength of a pixel electrode provided in the electro-optical device of the embodiment. FIG. It is the top view which showed the comparative example of FIG. FIG. 3 is a plan view (part 1) schematically showing a specific planar shape and lateral electric field strength of an example of a pixel electrode included in the electro-optical device according to the embodiment. FIG. 6 is a plan view (part 2) schematically showing a specific planar shape and lateral electric field strength of an example of a pixel electrode included in the electro-optical device according to the embodiment. FIG. 6 is a plan view (part 3) schematically showing a specific planar shape and lateral electric field strength of an example of a pixel electrode included in the electro-optical device according to the embodiment. It is sectional drawing showing the structure of the liquid crystal projector which concerns on one Embodiment of the electronic device of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Liquid crystal device, 10 ... TFT array substrate, 20 ... Counter substrate, 9a1, 9a2, 49a1, 49a2, 201a1, 201a, 211a1, 211a2, 221a1, 221a2, 231a1, 231a2, 241a1, 241a2, 251a1, 251a2, 261a1, 251a2, 261a1, 261a2, 271a1, 271a2, ... pixel electrodes

Claims (9)

A pair of substrates;
An electro-optic material sandwiched between the pair of substrates;
On one substrate of the pair of substrates, they are arranged adjacent to each other with an interval when viewed from the direction along the normal line on the substrate surface of the one substrate, and different potentials are supplied. A first pixel electrode and a second pixel electrode;
At least a part of the first edge part of the first pixel electrode is opposed to the part of the edge part of the second pixel electrode with the interval as viewed from the direction along the normal line. An electro-optical device, wherein the second edge extends along a second direction intersecting with the first direction in which the second edge extends. 2. The electro-optical device according to claim 1, wherein the part is a notched portion in which at least one of both ends of the first edge portion is notched. The other part of the first edge portion excluding the notch extends along the first direction, and the other part extending along the first direction is the first part. The electro-optical device according to claim 1, wherein the electro-optical device occupies 1/3 or less of the edge. The other part of the first edge portion excluding the part extends along a third direction that intersects each of the first direction and the second direction when viewed from the direction along the normal line. The electro-optical device according to claim 1. On the one substrate, a conductive portion formed in a layer different from the layer in which the first pixel electrode is formed, and a connection portion that electrically connects the first pixel electrode,
The said connection part is provided in the convex part which contains the said part and protruded in the said 2nd pixel electrode side seeing from the said 1st pixel electrode. The electro-optical device according to one item. The electro-optical device according to claim 1, further comprising: a light-shielding film that overlaps the first edge and the second edge when viewed from a direction along the normal line. The third edge of the edge of the second pixel electrode that faces the second edge when viewed from the direction along the normal is in the first direction when viewed from the direction along the normal. The electro-optical device according to claim 1, wherein the electro-optical device extends along a crossing fourth direction. A counter electrode that is formed on the other of the pair of substrates and faces the first pixel electrode and the second pixel electrode;
The electro-optical device according to claim 1, wherein the different potentials are potentials having different polarities based on a common potential supplied to the counter electrode. An electronic apparatus comprising the electro-optical device according to any one of claims 1 to 8.

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