JP2015106109A - Electro-optic device and electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a high-quality image.SOLUTION: An electro-optic device 200 includes a device substrate 62 having a display region 40. A terminal PAD1 in a first row, a terminal PAD2 in a second row, a first wiring line W1 connected to the terminal PAD1 in the first row, a second wiring line W2 connected to the terminal PAD2 in the second row are formed on the device substrate 62. The terminal PAD1 in the first row is disposed between the display region 40 and one side 67 in an outer periphery of the device substrate 62; the terminal PAD2 in the second row is disposed between the terminal PAD1 in the first row and the side 67 in the outer periphery; the first wiring line W1 extends between the display region 40 and the side 67 in the outer periphery; and the second wiring line W2 extends between the display region 40 and the terminal PAD2 in the second row. Since a capacitance possessed by the first wiring line W1 is substantially equal to a capacitance possessed by the second wiring line W2, the electro-optic device can display a high-definition image while suppressing display irregularity.

Description

  The present invention relates to an electro-optical device and an electronic apparatus.

  In an electronic apparatus having a display function, a transmissive electro-optical device or a reflective electro-optical device is used. Light is irradiated to these electro-optical devices, and transmitted light or reflected light modulated by the electro-optical device becomes a display image, or is projected on a screen to become a projection image. A liquid crystal device is known as an electro-optical device used in such an electronic apparatus, which forms an image using the dielectric anisotropy of liquid crystal and the optical rotation of light in the liquid crystal layer. It is. In the liquid crystal device, scanning lines and signal lines are arranged in an image display area, and pixels are arranged in a matrix at intersections thereof. A pixel transistor is provided in the pixel, and an image is formed by supplying an image signal to each pixel through the pixel transistor.

  In the electro-optical device, in order to improve display quality, high definition pixels are being promoted. As a result, the number of mounting terminals included in the electro-optical device has increased, and it has become difficult to secure a sufficient mounting terminal arrangement region with respect to the size of the electro-optical device. A method for solving this problem is described in Patent Document 1, for example. In Patent Document 1, another mounting terminal group is arranged in a direction perpendicular to the mounting terminal arrangement direction. In short, in the electro-optical device of Patent Document 1, mounting terminals are arranged over two rows.

JP 2011-138101 A

  However, in the electro-optical device described in Patent Document 1, display unevenness may be visually recognized in the displayed image. In other words, the conventional electro-optical device has a problem that it is difficult to display a high-definition image without causing display unevenness.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

Application Example 1 An electro-optical device according to this application example includes an element substrate having a display region. The element substrate includes a first row terminal, a second row terminal, and a first row terminal. A first wiring connected to the terminal and a second wiring connected to the terminal in the second row are formed, and the terminal in the first row is between the display region and one side of the outer periphery of the element substrate. The second row terminals are arranged between the first row terminals and one side of the outer periphery, the first wiring extends between the display area and one side of the outer periphery, The second wiring extends between the display region and the second row terminal.
According to this configuration, the capacity of the first wiring (first wiring capacity) and the capacity of the second wiring (second wiring capacity) can be made comparable. Accordingly, the signal transmission time constant in the first wiring (first wiring time constant) and the signal transmission time constant in the second wiring (second wiring time constant) are approximately the same. Display unevenness due to the difference between the first wiring time constant and the second wiring time constant can be suppressed. As a result, an electro-optical device that displays a high-definition image in which display unevenness is suppressed can be realized.

Application Example 2 In the electro-optical device according to Application Example 1, it is preferable that the second wiring extends between the display region and one side of the outer periphery.
According to this configuration, the first wiring capacity and the second wiring capacity can be made comparable.

Application Example 3 In the electro-optical device according to Application Example 1 or 2, it is preferable that at least the lengths of the first wiring and the second wiring adjacent to each other are substantially equal.
According to this configuration, the first wiring capacity and the second wiring capacity can be made comparable.

Application Example 4 In the electro-optical device according to any one of Application Examples 1 to 3, it is preferable that the first wiring and the second wiring are straight lines.
According to this configuration, since the bent portion is eliminated by the first wiring and the second wiring, it is possible to avoid the influence of signal reflection at the bent portion. As a result, a signal can be transmitted to the wiring at high speed.

Application Example 5 In the electro-optical device according to Application Example 4, the width of the second wiring is an average value of the width of the second wiring at the connection portion with the terminal in the second row. It is preferable that it is larger.
According to this configuration, the first wiring capacitance and the second wiring capacitance can be made comparable, and the wiring resistance can be reduced, so that an increase in the second wiring time constant can be suppressed.

Application Example 6 An electro-optical device according to this application example includes an element substrate having a display area and a drive circuit, and the drive circuit is disposed between the display area and one side of the outer periphery of the element substrate. The first row terminal, the second row terminal, the first wiring connected to the first row terminal, and the second wiring connected to the second row terminal are formed. The first row terminal is arranged between the drive circuit and one side of the outer periphery of the element substrate, and the second row terminal is arranged between the first row terminal and one side of the outer periphery. The first wiring extends between the driving circuit and one side of the outer periphery, and the second wiring extends between the driving circuit and the second row terminal. .
According to this configuration, the capacity of the first wiring (first wiring capacity) and the capacity of the second wiring (second wiring capacity) can be made comparable. Accordingly, the signal transmission time constant in the first wiring (first wiring time constant) and the signal transmission time constant in the second wiring (second wiring time constant) are approximately the same. Display unevenness due to the difference between the first wiring time constant and the second wiring time constant can be suppressed. As a result, an electro-optical device that displays a high-definition image in which display unevenness is suppressed can be realized.

Application Example 7 In the electro-optical device according to Application Example 6, it is preferable that the second wiring extends between the drive circuit and one side of the outer periphery.
According to this configuration, the first wiring capacity and the second wiring capacity can be made comparable.

Application Example 8 In the electro-optical device according to Application Example 6 or 7, it is preferable that at least the lengths of the first wiring and the second wiring adjacent to each other are substantially equal.
According to this configuration, the first wiring capacity and the second wiring capacity can be made comparable.

Application Example 9 In the electro-optical device according to any one of Application Examples 6 to 8, it is preferable that the first wiring and the second wiring are straight lines.
According to this configuration, since the bent portion is eliminated by the first wiring and the second wiring, it is possible to avoid the influence of signal reflection at the bent portion. As a result, a signal can be transmitted to the wiring at high speed.

Application Example 10 In the electro-optical device according to Application Example 9, the width of the second wiring is an average value of the widths of the second wirings in the connection portions with the terminals in the second row. It is preferable that it is larger.
According to this configuration, the first wiring capacitance and the second wiring capacitance can be made comparable, and the wiring resistance can be reduced, so that an increase in the second wiring time constant can be suppressed.

Application Example 11 An electronic apparatus including the electro-optical device according to any one of Application Examples 1 to 10.
According to this configuration, an electronic apparatus including an electro-optical device that displays a high-definition image in which display unevenness is suppressed can be realized.

The schematic diagram of the projection type display apparatus which is an example of an electronic device. 1 is a circuit block diagram of an electro-optical device. The circuit diagram of each pixel. FIG. 3 is a schematic cross-sectional view of a liquid crystal device. 2A and 2B illustrate a circuit configuration and a mounting region configuration of a signal line driver circuit according to the first embodiment. FIG. 3 is a diagram illustrating a wiring shape according to the first embodiment. FIG. 3 is a diagram illustrating a wiring shape according to the first embodiment. The figure explaining the principle of this invention. FIG. 6 is a diagram illustrating a wiring shape according to the second embodiment. FIG. 6 is a diagram illustrating a wiring shape according to the second embodiment. FIG. 6 is a diagram illustrating a wiring shape according to a third embodiment. FIG. 6 is a diagram illustrating a circuit configuration and a mounting area configuration of an electro-optical device according to a fourth embodiment. The figure explaining the wiring shape concerning the modification 1. FIG. The figure explaining the wiring shape concerning a comparative example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scale of each layer and each member is made different from the actual scale so that each layer and each member can be recognized.

(Embodiment 1)
"Outline of electronic equipment"
FIG. 1 is a schematic diagram of a projection display device (a three-plate projector) that is an example of an electronic apparatus. Hereinafter, the configuration of the electronic apparatus will be described with reference to FIG.

  The electronic apparatus (projection type display device 1000) includes three electro-optical devices 200 (refer to FIG. 2; hereinafter, abbreviated as first panel 201, second panel 202, and third panel 203), and these electro-optical devices 200. And at least a control device 30 for supplying a control signal. The first panel 201, the second panel 202, and the third panel 203 are three electro-optical devices 200 corresponding to different display colors (red, green, and blue). Hereinafter, unless it is particularly necessary to distinguish the first panel 201, the second panel 202, and the third panel 203, these are collectively referred to as an electro-optical device 200.

  The illumination optical system 1100 supplies the red component r of the emitted light from the illumination device (light source) 1200 to the first panel 201, supplies the green component g to the second panel 202, and supplies the blue component b to the third panel 203. To supply. Each electro-optical device 200 functions as a light modulator (light valve) that modulates each color light supplied from the illumination optical system 1100 according to a display image. The projection optical system 1300 synthesizes the emitted light from each electro-optical device 200 and projects it onto the projection surface 1400.

"Circuit configuration of electronic equipment"
FIG. 2 is a circuit block diagram of the electro-optical device. Next, a circuit block configuration of the electro-optical device 200 will be described with reference to FIG.

  As shown in FIG. 2, the electro-optical device 200 includes at least a display area 40 and a drive unit 50. Furthermore, the electro-optical device 200 includes a mounting area 20 (see FIG. 6). In the display area 40 of the electro-optical device 200, a plurality of scanning lines 42 and a plurality of signal lines 43 intersecting with each other are formed, and pixels 41 are arranged in a matrix corresponding to each intersection of the scanning lines 42 and the signal lines 43. Is arranged. The scanning lines 42 extend in the row direction, and the signal lines 43 extend in the column direction. In this specification, the row direction is a direction parallel to the X axis, and the column direction is a direction parallel to the Y axis. When specifying the i-th scanning line 42 among the scanning lines 42, it is expressed as a scanning line Gi, and when specifying the (jk + p) -th column signal line 43 among the signal lines 43. , Signal line Sjk + p (j, k, and p will be described in detail later). In the display area 40, m scanning lines 42 and n signal lines 43 are formed (m is an integer of 2 or more, and n is an integer of 2 or more). In the present embodiment, the electro-optical device 200 will be described using m = 2168 and n = 4112 as an example. In this case, a so-called 4K image of 2160 rows × 4096 rows is displayed in the display area 40 of 2168 rows × 4112 columns.

  Various signals are supplied from the drive unit 50 to the display area 40, and an image is displayed in the display area 40. That is, the drive unit 50 supplies drive signals to the plurality of scanning lines 42 and the plurality of signal lines 43. Specifically, the drive unit 50 includes a drive circuit 51 that drives each pixel 41, a display signal supply circuit 32 that supplies a display signal to the drive circuit 51, and a storage circuit 33 that temporarily stores a frame image. , Including. From the frame image stored in the storage circuit 33, the display signal supply circuit 32 produces a display signal (image signal, clock signal, etc.) and supplies it to the drive circuit 51. The display signal supply circuit 32 also creates a precharge signal and supplies it to the drive circuit 51.

  The drive circuit 51 includes a scanning line drive circuit 52 and a signal line drive circuit 53. The scanning line driving circuit 52 outputs a scanning signal for selecting or deselecting a pixel in the row direction to each scanning line 42, and the scanning line 42 transmits this scanning signal to the pixel 41. In other words, the scanning signal has a selected state and a non-selected state, and the scanning line 42 can be appropriately selected in response to the scanning signal from the scanning line driving circuit 52. The scanning line driving circuit 52 includes a shift register circuit (not shown), and a signal for shifting the shift register circuit is output as a shift output signal for each stage. A scanning signal is formed using this shift output signal. The signal line driving circuit 53 can supply a precharge signal and an image signal to each of the n signal lines 43 in synchronization with the selection of the scanning line 42.

  One display image is formed in one frame period. Each scanning line 42 is selected at least once in one frame period. Normally, each scanning line 42 is selected once. Since a period during which one scanning line is selected is referred to as a horizontal scanning period, one frame period includes at least m horizontal scanning periods. The scanning line 42 is sequentially selected from the first scanning line G1 to the m-th scanning line Gm (or from the m-th scanning line Gm to the first scanning line G1 in order), thereby forming one frame period. Therefore, the frame period is also called a vertical scanning period.

  In this embodiment, the electro-optical device 200 is formed using an element substrate 62 (see FIG. 4), and the drive circuit 51 is formed on the element substrate 62 using a thin film element such as a thin film transistor. A display signal supply circuit 32 and a memory circuit 33 are included in the control device 30, and the control device 30 is formed of a semiconductor integrated circuit formed over a single crystal semiconductor substrate. A mounting region 20 is provided in the element substrate 62, and a display signal is transmitted from the control device 30 to the drive circuit 51 via a terminal PAD and a flexible printed circuit (FPC) arranged in the mounting region 20. Supplied.

`` Pixel configuration ''
FIG. 3 is a circuit diagram of each pixel. Next, the configuration of the pixel 41 will be described with reference to FIG.

  The electro-optical device 200 according to the present embodiment is a liquid crystal device, and the electro-optical material is a liquid crystal 46. As shown in FIG. 3, each pixel 41 includes a liquid crystal element CL and a pixel transistor 44. The liquid crystal element CL is an electro-optic element having a pixel electrode 45 and a common electrode 47 facing each other, and a liquid crystal 46 of an electro-optic material disposed between these electrodes. The transmittance of light passing through the liquid crystal 46 changes according to the electric field applied between the pixel electrode 45 and the common electrode 47. As the electro-optical material, an electrophoretic material may be used instead of the liquid crystal 46. In that case, the electro-optical device 200 becomes an electrophoretic device and is used for an electronic book or the like. Alternatively, an organic EL material may be used instead of the liquid crystal 46 as the electro-optic material. In that case, the electro-optical device 200 becomes an organic EL device and is used for a smartphone, a tablet terminal, or the like.

  The pixel transistor 44 is composed of an N-type thin film transistor having a gate connected to the scanning line 42, and is interposed between the liquid crystal element CL and the signal line 43 to establish electrical connection (conduction / non-conduction) between the two. Control. Accordingly, the pixel 41 (liquid crystal element CL) performs display according to the potential (image signal) supplied to the signal line 43 when the pixel transistor 44 is turned on. Note that illustration of an auxiliary capacitor connected in parallel to the liquid crystal element CL is omitted. When the electro-optical device 200 is an organic EL device, the configuration of the pixel 41 of the organic EL device is slightly different from the configuration shown in FIG. 3, and further includes a drive transistor (not shown). At this time, the output of the pixel transistor 44 is electrically connected to the gate of the driving transistor, one of the source and drain of the driving transistor is connected to the power supply, and the other of the source and drain of the driving transistor is connected to the pixel electrode 45.

"Structure of liquid crystal device"
FIG. 4 is a schematic cross-sectional view of the liquid crystal device. Hereinafter, a cross-sectional structure of the liquid crystal device will be described with reference to FIG. In addition, in the following forms, when “on XX” is described, when placed on XX, or placed on XX via other components Or, when a part is arranged on OO and a part is arranged through another component, it represents.

  In the electro-optical device 200 (liquid crystal device), an element substrate 62 and a counter substrate 63 constituting a pair of substrates are bonded together by a sealing material 64 arranged in a substantially rectangular frame shape in plan view. The liquid crystal device has a configuration in which a liquid crystal 46 is sealed in a region surrounded by a sealing material 64. As the liquid crystal 46, for example, a liquid crystal material having positive dielectric anisotropy is used. In the liquid crystal device, a light-shielding film 48 having a rectangular frame shape made of a light-shielding material is formed on the counter substrate 63 along the vicinity of the inner periphery of the sealing material 64, and an area inside the light-shielding film 48 is a display area 40. It has become. The light shielding film 48 is made of, for example, aluminum (Al), which is a light shielding material, and further, in the display area 40 as described above so as to partition the outer periphery of the display area 40 on the counter substrate 63 side. The scanning line 42 and the signal line 43 are provided facing each other.

  As shown in FIG. 4, a plurality of pixel electrodes 45 are formed on the element substrate 62 on the liquid crystal 46 side, and a first alignment film 65 is formed so as to cover the pixel electrodes 45. The pixel electrode 45 is a conductive film made of a transparent conductive material such as indium tin oxide (ITO). On the other hand, a lattice-shaped light-shielding film 48 is formed on the counter substrate 63 on the liquid crystal 46 side, and a flat solid common electrode 47 is formed thereon. A second alignment film 66 is formed on the common electrode 47. The common electrode 47 is a conductive film made of a transparent conductive material such as ITO.

  The liquid crystal device is a transmissive type, and polarizing plates (not shown) and the like are disposed on the light incident side and the light emitting side of the element substrate 62 and the counter substrate 63, respectively. The configuration of the liquid crystal device is not limited to this, and may be a reflective type or a transflective type.

  As described above, the electro-optical device 200 includes the element substrate 62 having the display region 40, the drive circuit 51 (the signal line drive circuit 53 is illustrated in FIG. 4), and the mounting region 20. The mounting area 20 is disposed between the display area 40 and one side 67 of the outer periphery of the element substrate 62. The drive circuit 51 is disposed between the display area 40 and one side 67 of the outer periphery of the element substrate 62, and is disposed between the display area 40 and the mounting area 20. That is, the drive circuit 51 is disposed outside the display area 40, and the mounting area 20 is formed further outside the drive circuit 51.

"Signal line driver circuit and mounting area"
FIG. 5 is a diagram illustrating a circuit configuration and a mounting area configuration of the signal line driving circuit according to the first embodiment. Next, the configuration of the signal line driving circuit 53 and the mounting region 20 will be described with reference to FIG.

  The signal line driving circuit 53 can supply a precharge signal and an image signal to each of the n signal lines 43. First, the n signal lines 43 are classified into k signal line groups (k is an integer of 2 or more). That is, there are k types of series signals, and accordingly, the n signal lines 43 are connected from the first series signal lines (referred to as first series signal line groups) to the kth series signal lines (kth series signals). Are classified into k types of signal line groups. In the signal line Sjk + p in the (jk + p) column, p takes any value from 1 to k, and the signal line Sjk + p in the (jk + p) column belongs to the p-th series signal line group. The parameter j can take any integer value from 0 to q. The numerical value q is the maximum value of the parameter j and is a value obtained by subtracting 1 from the value obtained by dividing the number n of the signal lines 43 by the number of series k (q = n / k−1). In this embodiment, as an example, since n = 4112 and k = 4, the maximum value q that the parameter j can take is 1027 (q = 1027). Therefore, the first series signal line group is an aggregate of the signal lines Sjk + 1 in the (jk + 1) th column. Specifically, the signal line S1 in the first column with j = 0 and the signal in the fifth column with j = 1. 1028 signal lines 43 including the line S5, the signal line S9 in the ninth column with j = 2, and the signal line S4109 in the 4109th column with j = 1027 are included. Similarly, the second series signal line group is an aggregate of the signal lines Sjk + 2 in the (jk + 2) th column. Specifically, the signal line S2 in the second column with j = 0 and the sixth column in j = 1. 1028 signal lines 43 including the signal line S6, the signal line S10 in the 10th column with j = 2, and the signal line S4110 in the 4110th column with j = 1027 are included. Similarly, the k-th series signal line group is an aggregate of the (jk + k) -th column signal lines Sjk + k, specifically, the k-th signal line Sk with j = 0, and the 2k-th column with j = 1. The signal line S3k in the 3k column with j = 2 and the signal line S (q + 1) k in the (q + 1) k column with j = q (in this example, 4112 columns with j = 1028) 1028 signal lines 43 of the eye signal line S4112) are included.

  In the signal line drive circuit 53, k series lines corresponding to k kinds of series signals and (q + 1) original signal lines are wired. A p-th series signal SELp is supplied to the p-th series line (p is an arbitrary integer from 1 to k). For example, the first series signal SEL1 is supplied to the first series line, the second series signal SEL2 is supplied to the second series line, and the k-th series signal SELk is supplied to the k-th series line in the same manner. Is done. A j-th original signal OSj is supplied to the j-th original signal line. For example, the 0th original signal line is supplied with the 0th original signal OS0, the first original signal line is supplied with the first original signal OS1, and the qth original signal line is similarly supplied with the qth original signal OS1. OSq is supplied.

  The signal line driving circuit 53 includes q + 1 (that is, n / k) first switches SW1 to q + 1 (that is, n / k) k-th switches SWk. Like the pixel transistor 44, the first switch SW1 to the kth switch SWk are formed of thin film transistors. One end (one of the source and the drain) of the p-th switch SWp is electrically connected to the signal line Sjk + p in the (jk + p) column, and the other end (the other of the source and the drain) of the p-th switch SWp is the j-th element. The p-th switch SWp is electrically connected to the signal line, and the gate of the p-th switch SWp is electrically connected to the p-th series line. Accordingly, when the p-th series signal SELp becomes a selection signal, the p-th switch SWp is turned on, and the j-th original signal OSj is supplied as a precharge signal or an image signal to the signal line Sjk + p in the (jk + p) column. Is done. For example, the first switch SW1 is arranged between the signal line S1 of the first column belonging to the first series signal line group and the 0th original signal line, and the gate of the first switch SW1 is electrically connected to the first series line. It is connected. Therefore, when the first series signal SEL1 becomes a selection signal, the first switch SW1 is turned on, and the 0th original signal OS0 is supplied to the signal line S1 of the first column as a precharge signal or an image signal. Is done. Similarly, for example, the fourth switch SW4 is arranged between the 4112th column signal line S4112 belonging to the fourth series signal line group and the 1027th original signal line, and the gate of the fourth switch SW4 is connected to the fourth series line. Electrically connected. Therefore, when the fourth series signal SEL4 becomes a selection signal, the fourth switch SW4 is turned on, and the 1027th original signal OS1027 is supplied to the signal line S4112 in the 4112th column as a precharge signal or an image signal. Is done.

  In this specification, the term “terminal 1 and terminal 2 are electrically connected” means that terminal 1 and terminal 2 can be in the same logic state (potential on design concept). Yes. Specifically, in addition to the case where the terminal 1 and the terminal 2 are directly connected by wiring, the case where they are connected via a resistance element, a switching element, or the like is included. That is, even if the potential at the terminal 1 and the potential at the terminal 2 are slightly different, if the same logic is given on the circuit, the terminal 1 and the terminal 2 are electrically connected. Therefore, for example, as shown in FIG. 5, even when the first switch SW1 is arranged between the signal line S1 in the first column and the 0th original signal line, the 0th switch is not turned on when the first switch SW1 is on. Since the original signal is supplied to the signal line S1 in the first column, the signal line S1 in the first column and the 0th original signal line are electrically connected.

  The q + 1 original signal lines (from the 0th original signal line to the qth original signal line) are connected to the terminal PAD in the mounting area 20, respectively. Since one terminal is formed for one original signal line, the number of terminals PAD is very large, q + 1. Therefore, in the mounting region 20, q + 1 terminals PAD are arranged in a matrix of s rows and t columns (s is an integer of 2 or more, t = (q + 1) / s). In this embodiment, since q + 1 = 1028, the terminals PAD are arranged in a matrix of 4 rows and 257 columns with s = 4 and t = 257. For example, the 0th original signal line is electrically connected to the terminal PAD1-1 in the first row and the first column, the first original signal line is electrically connected to the terminal PAD1-2 in the first row and the second column, and so on. The 1027th original signal line is electrically connected to a terminal PAD4-257 in 4 rows and 257 columns. Note that the terminal PAD1 in the first row is the terminal PAD1-1 in the first row and the first column to the terminals PAD1-257 in the first row and the 257th column. Similarly, the second row terminal PAD2 from the second row and first column terminal PAD2-1 to the second row 257 column terminal PAD2-257 is the third row and first column terminal PAD3-1 to the third row 257 column terminal. The terminal PAD3 up to PAD3-257 is the terminal PAD3 in the third row, and the terminal PAD4-1 in the fourth row and the first column to the terminal PAD4-257 in the fourth row and the 257th column are the terminals PAD4 in the fourth row.

  The control device 30 and the drive circuit 51 are connected via an FPC (not shown). A connection area is provided in the connection portion of the FPC, and corresponding connection terminals are formed in the connection area at the same pitch as the terminals PAD arranged in the mounting area 20. The connection terminal of the FPC and the terminal PAD of the mounting area 20 are connected using an anisotropic conductive film (ACF) or an anisotropic conductive paste (ACP).

  Note that the terminal PAD and the wiring are formed of a metal such as aluminum or copper, and these metals are covered with an insulating film such as a silicon oxide film. In the terminal PAD, an opening is provided in the insulating film for contact with the FPC. Furthermore, in order to increase the reliability of the terminal PAD, the opening may be covered with a conductive material (indium tin oxide or the like) constituting the pixel electrode 45.

"Wiring shape"
6A and 6B are diagrams illustrating the wiring shape according to the first embodiment. FIG. 6A is a diagram illustrating the wiring shape related to one row of terminals. FIG. 6B is a schematic plan view illustrating the configuration of the electro-optical device. It is. FIG. 7 is a diagram illustrating the wiring shape according to the first embodiment, and is a diagram illustrating the wiring shape related to the terminals for a plurality of columns. FIG. 8 is a diagram for explaining the principle of the present invention. 14A and 14B are diagrams illustrating the wiring shape according to the comparative example. FIG. 14A is a diagram illustrating the wiring shape related to one row of terminals. FIG. 14B is a schematic plan view illustrating the configuration of the electro-optical device. is there. Next, the wiring shape and the principle of the present invention will be described with reference to FIGS. 6 to 8 and FIG. FIG. 14 is a diagram for explaining a comparative example corresponding to the prior art. In order to make the explanation easy to understand, the same reference numerals and notations are used for the same type of configuration as in the present embodiment.

  Since FIG. 5 is an equivalent circuit diagram for explaining the circuit configuration, the actual wiring shape in the electro-optical device 200 is different from this. First, the wiring shape in the mounting region 20 will be described with reference to FIGS.

  As shown in FIG. 6B, the mounting area 20 is disposed between the display area 40 of the element substrate 62 and one side 67 of the outer periphery of the element substrate 62. FIG. 6A is an enlarged view of a part of the mounting area 20. More specifically, the t-th terminal PAD (from the terminal PAD 1 -t in the first row and the t-th column to the fourth row in the mounting area 20 is illustrated. The terminal PAD up to the terminal PAD4-t in the t row and the wiring connected thereto are described. As shown in FIG. 6A, the terminal PAD1 in the first row is arranged between the display region 40 and one side 67 of the outer periphery of the element substrate 62, and the terminal PAD2 in the second row is connected to the first row. In the same manner, the terminal PADs of the s-th row is arranged between the terminal PADs-1 of the (s-1) -th row and the one side 67 of the outer periphery. Be placed. That is, the terminal PAD1 in the first row is located on the innermost side and closest to the display area 40, and the terminal PADs in the s-th row is located on the outermost side (the one side 67 side of the outer periphery of the element substrate 62). The farthest from 40.

  As shown in FIG. 6A, the mounting area 20 includes a first wiring W1 connected to the terminal PAD1 in the first row, a second wiring W2 connected to the terminal PAD2 in the second row, Similarly, an sth wiring Ws connected to the terminal PADs in the sth row is formed. The first wiring W1 extends between the display area 40 and one side 67 of the outer periphery. That is, the first wiring W1 is a first inbound wiring IBW1 that goes from the terminal PAD1 in the first row to the display area 40, and a first that goes from the terminal PAD1 in the first row to one side 67 of the outer periphery of the element substrate 62. Outbound wiring OBW1. The first inbound wiring IBW1 extends between the display region 40 and the terminal PAD1 in the first row, and the first outbound wiring OBW1 is one side 67 of the outer periphery of the terminal PAD1 in the first row and the element substrate 62. And extended between.

  Similarly, the second wiring W <b> 2 extends between the display area 40 and the outer side 67. That is, the second wiring W2 includes the second inbound wiring IBW2 that goes from the terminal PAD2 in the second row to the display region 40, and the second that goes from the terminal PAD2 in the second row to one side 67 of the outer periphery of the element substrate 62. Outbound wiring OBW2. The second inbound wiring IBW2 extends between the display area 40 and the terminal PAD2 in the second row, and the second outbound wiring OBW2 is one side 67 of the outer periphery of the terminal PAD2 and the element substrate 62 in the second row. And extended between.

  Similarly, the sth wiring Ws extends between the display area 40 and one side 67 of the outer periphery. That is, the s-th wiring Ws includes the s-th inbound wiring IBWs from the terminal PADs in the s-th row toward the display area 40, and the s-th wiring from the terminal PADs in the s-th row toward the one side 67 of the outer periphery of the element substrate 62. Outbound wiring OBWs. The s-th inbound wiring IBWs extends between the display area 40 and the terminal PADs in the s-th row, and the s-th outbound wiring OBWs is one side 67 of the outer periphery of the terminal PADs in the s-th row and the element substrate 62. And extended between.

  Since the terminal PAD1 in the first row is arranged at a position closest to the display area 40, the first inbound wiring IBW1 is shorter than the other inbound wiring IBW. On the contrary, since the terminal PADs in the s-th row is arranged at the position farthest from the display area 40, the s-th inbound wiring IBWs is longer than the other inbound wiring IBW. On the other hand, since the terminal PAD1 in the first row is arranged at a position closest to the display area 40, the first outbound wiring OBW1 is longer than the other outbound wirings OBW. On the contrary, since the terminal PADs in the s-th row is arranged at the position farthest from the display area 40, the s-th outbound wiring OBWs is shorter than the other outbound wirings OBW. In this way, the length of the inbound wiring IBW becomes longer for each row from the terminal PAD1 in the first row to the terminal PADs in the s-th row, and conversely, the length of the outbound wiring OBW is the terminal in the first row. From PAD1 to the terminal PADs in the sth row, the length is shortened for each row. As a result, the length of all the wirings from the first wiring W1 to the sth wiring Ws (the length of the first wiring W1 and the length of the second wiring W2, followed by the length of the sth wiring Ws). The length) is almost equal. Actually, from the first wiring W1 to the sth wiring Ws, the first outbound wiring OBW1 to the sth outbound wiring OBWs are arranged so that the lengths of all the wirings are almost equal.

  Each inbound wiring IBW is arranged so that the distance between adjacent inbound wirings IBW is substantially equal. Specifically, the distance between the first inbound wiring IBW1 and the second inbound wiring IBW2 located next thereto, and the distance between the second inbound wiring IBW2 and the third inbound wiring IBW3 located next thereto. The distance between the third inbound wiring IBW3 and the fourth inbound wiring IBW4 located next thereto is substantially equal to the distance between the fourth inbound wiring IBW4 and the first inbound wiring IBW1 located next thereto. It has become.

  In addition, each outbound wiring OBW is arranged so that the distance between adjacent outbound wirings OBW is substantially equal. Specifically, the distance between the first outbound wiring OBW1 and the second outbound wiring OBW2 located next thereto, and the distance between the second outbound wiring OBW2 and the third outbound wiring OBW3 located next thereto. The distance between the third outbound wiring OBW3 and the fourth outbound wiring OBW4 located next thereto is substantially equal to the distance between the fourth outbound wiring OBW4 and the first outbound wiring OBW1 located next thereto. It has become. In addition, the distance between adjacent inbound wirings IBW and the distance between adjacent outbound wirings OBW are substantially equal.

  The inbound wiring IBW is connected from the mounting region 20 to the signal line driving circuit 53 by a straight line that keeps the distance between the adjacent inbound wirings IBW substantially equal to each other, and becomes an original signal line. More specifically, the inbound wiring IBW (first inbound wiring IBW1 in the first column) of the terminal PAD1-1 in the first row and first column becomes the 0th original signal line as it is, and the terminal PAD2 in the second row and first column. -1 inbound wiring IBW (second inbound wiring IBW2 in the first column) becomes the first source signal line as it is, inbound wiring IBW (fourth inbound wiring in the 257th column) of terminal PAD4-257 in the 4th row and 257th column IBW4) becomes the 1027th original signal line as it is. The outbound wiring OBW is a so-called dummy wiring having no function on the circuit other than the effect of arranging the parasitic capacitance described below.

  FIG. 7 illustrates the shape of the terminals for a plurality of columns and the wiring associated therewith when the above configuration is adopted. The lengths of the respective wirings are substantially equal, and the relationship between the distances between adjacent wirings is the same for all wirings. That is, the first wiring W1, the second wiring W2, the third wiring W3, and the fourth wiring W4 are all substantially the same in length, and the distance (wiring interval) between adjacent wirings is also substantially the same. Are equal.

  FIG. 8 is a diagram qualitatively explaining the effects brought about by the above-described configuration, and shows that the wiring capacitance is the same for all wirings. Specifically, with the above configuration, the capacitance of the first wiring W1 (first wiring capacitance), the capacitance of the second wiring W2 (second wiring capacitance), and the capacitance of the third wiring W3 ( The third wiring capacity) and the capacity of the fourth wiring W4 (fourth wiring capacity) are approximately the same. As shown in FIG. 8, for example, the second wiring W2 has an upper parasitic capacitance C1 between the upper adjacent third wiring W3 and a lower adjacent first wiring W1. The upper parasitic capacitance C1 and the lower parasitic capacitance C2 are substantially equal. The upper parasitic capacitance C1 and the lower parasitic capacitance C2 are equal in relation to the first wiring W1, the second wiring W2, the third wiring W3, and the fourth wiring W4. This holds true for all wiring. As a result, the first wiring capacity, the second wiring capacity, the third wiring capacity, and the fourth wiring capacity are substantially equal (all wiring capacity). Also, since the wiring resistances are substantially equal, the time constant of signal transmission in the first wiring W1 (time constant of the first wiring) and the time constant of signal transmission in the second wiring W2 (second Wiring time constant), signal transmission time constant in the third wiring W3 (time constant of the third wiring), signal transmission time constant in the fourth wiring W4 (time constant of the fourth wiring), But all of them are on the same level. As a result, display unevenness due to the difference between the time constant of the first wiring, the time constant of the second wiring, the time constant of the third wiring, and the time constant of the fourth wiring can be suppressed. In this way, it is possible to realize the electro-optical device 200 that displays a high-definition image in which display unevenness is suppressed.

  Generally, the distance between the rows of the terminal PAD is about several millimeters, for example, due to restrictions of FPC and securing of the terminal PAD area. In such a case, in the comparative example shown in FIG. 14, a large difference occurs in the wiring capacitance (capacitance between adjacent wirings) associated with each wiring (original signal line), and a large wiring capacitance difference may occur. When there is a wiring capacity difference in the wiring (original signal line), unevenness may be visually recognized in the display image due to the difference, but the configuration of this embodiment can surely improve this problem. .

  Strictly speaking, the time constant from the output pin of the control device 30 to the drive circuit 51 is uniform in all wirings, thereby realizing uniform image display. Therefore, the sum of the time constant of the wiring in the FPC and the time constant of the inbound wiring IBW needs to be aligned. However, the wiring in the FPC is sufficiently thicker and lower in resistance than the wiring in the panel, and since the distance between the wirings in the FPC is large, the parasitic capacitance between the wirings is small, and the time constant in the wiring of the FPC is Very small compared to the time constant of the inbound wiring IBW. Therefore, when receiving the original signal at the terminal PAD of the electro-optical device 200, variations in signal delay hardly cause a problem (very small). In the prior art shown in FIG. 14, since the wiring capacity of the wiring in the electro-optical device 200 is different, variation in signal delay occurs and display unevenness may appear. In contrast, in the present embodiment, the time constant of the first wiring, the time constant of the second wiring, the time constant of the third wiring, and the time constant of the fourth wiring are all equal to each other. Display unevenness can be suppressed.

  Further, in this specification, “substantially equal” means equal in terms of design concept. That is, even if some errors occur, it can be said that it is “substantially equal” except that it is intentionally different according to the design concept.

"Other electronic devices"
The electro-optical device 200 has the above-described configuration. As an electronic apparatus incorporating the electro-optical device 200, in addition to the projector described with reference to FIG. 1, a rear projection type TV, a direct-view type TV, a mobile phone , Portable audio equipment, personal computers, video camera monitors, car navigation devices, pagers, electronic notebooks, calculators, word processors, workstations, videophones, POS terminals, digital still cameras, and the like.

(Embodiment 2)
"Form 1 with different wiring shapes"
9A and 9B are diagrams illustrating the wiring shape according to the second embodiment. FIG. 9A is a diagram illustrating the wiring shape related to one row of terminals. FIG. 9B is a schematic plan view illustrating the configuration of the electro-optical device. It is. FIG. 10 is a diagram illustrating the wiring shape according to the second embodiment, and is a diagram illustrating the wiring shape related to terminals for a plurality of columns. Next, the electro-optical device 200 according to the second embodiment will be described with reference to FIGS. In addition, about the component same as Embodiment 1, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  The electro-optical device 200 of the present embodiment illustrated in FIG. 9 is different from the electro-optical device 200 of the first embodiment illustrated in FIG. 6 in the wiring shape in the mounting region 20. Other configurations are almost the same as those of the first embodiment.

  In the electro-optical device 200 (FIG. 6) of the first embodiment, a bent portion where the wiring is bent by about 90 ° was observed. On the other hand, as shown in FIG. 9, the electro-optical device 200 according to the present embodiment includes all wirings (first wiring W1 and second wiring W2) connected to the terminal PAD, In this embodiment, s = 4) up to the wiring s of s is a straight line at least in the mounting region 20. Further, at least in the mounting region 20, the length of each wiring (the sum of the length of the inbound wiring IBW and the length of the outbound wiring OBW) is equal. As a result of such a configuration, the bent portion is eliminated in all the wirings (the first wiring W1, the second wiring W2, the third wiring W3, and the fourth wiring W4). It is possible to avoid the influence of signal reflection in the. As a result, signals can be transmitted to the wiring at high speed.

  In the first embodiment shown in FIG. 7, the terminals PAD arranged in the s rows and the t columns have the same position in the row direction and the same position in the column direction. On the other hand, as shown in FIG. 10, in the electro-optical device 200 of the present embodiment, the terminals PAD arranged in the s rows and the t columns are arranged in the row direction (in the direction parallel to the X axis and in the extending direction of the inbound wiring IBW). Although the positions are aligned for each row in the (perpendicular direction) (the Y coordinate of the terminal PAD is almost equal in each row), the position in the column direction (the direction parallel to the Y axis and the extending direction of the inbound wiring IBW) , Each row is deviated by a certain offset amount (the X coordinate of the terminal PAD is deviated by a certain amount at s terminals in the same column). For example, with respect to the same column, the X-coordinate value of the second row terminal PAD2 is deviated by a predetermined amount from the first row terminal PAD1, and the third row terminal PAD3 has an X value relative to the second row terminal PAD2. The coordinate value is shifted by the same amount as the previous predetermined amount, and the terminal PAD4 in the fourth row is shifted from the terminal PAD3 in the third row by the same amount as the previous predetermined amount. The value of the X coordinate of the terminal PAD1 in the first row of the column is shifted from the terminal PADs in the s row of the previous column by the same amount as the predetermined amount. In this way, the coordinates in the column direction of the terminals are shifted by the same amount for each row. Thus, all the wirings connected to the terminal PAD (the first wiring W1, the second wiring W2, and the s-th wiring Ws, s = 4 in this embodiment) are connected. At least in the mounting region 20, it is a straight line. In the second embodiment, if the X coordinate of a mark (not shown) used for alignment at the time of mounting is made the same in each mounting terminal row, a mistake (so-called “pochamis”) at the time of attaching an FPC is avoided. You can also.

(Embodiment 3)
"Form 2 with different wiring shapes"
FIG. 11 is a diagram illustrating the wiring shape according to the third embodiment, and is a diagram illustrating the wiring shape related to terminals for a plurality of columns. Next, an electro-optical device 200 according to the third embodiment will be described with reference to FIG. In addition, about the component same as Embodiment 2, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  The electro-optical device 200 according to the present embodiment illustrated in FIG. 11 is different from the electro-optical device 200 according to the second embodiment illustrated in FIG. 10 in the wiring shape in the mounting region 20. Other configurations are almost the same as those of the second embodiment.

  In the electro-optical device 200 (FIG. 10) of the second embodiment, the space between the terminals PAD adjacent in the column direction is widened. For example, a plane space without wiring has spread between the PAD1-4 of 1 row and 4 columns and the PAD2-4 of 2 rows and 4 columns. For this reason, in this plane space, the distance between the first outbound wiring OBW1 and the second inbound wiring IBW2 is larger than the distance between the inbound wiring IBW, and in this portion, the first outbound wiring The capacitance values of OBW1 and second inbound wiring IBW2 were small. On the other hand, in this embodiment, as shown in FIG. 11, the width of each inbound wiring IBW is the average value of the width of the inbound wiring IBW at the connection portion with the terminal PAD to which the inbound wiring IBW is connected. Is bigger than. For example, the width of the second wiring W2 between the PAD1-4 in the first row and the fourth column and the PAD2-4 in the second row and the fourth column (the portion indicated by D in FIG. 11) is the second row terminal PAD2. Is larger than the average width of the second wiring W2. More specifically, the width of each inbound wiring IBW is the width of the inbound wiring IBW (the length in the row direction of the inbound wiring IBW) and the terminal at the connection portion with the terminal PAD to which the inbound wiring IBW is connected. The width of the PAD (the length of the terminal PAD in the row direction) is almost the same. In this case, the distances between all the wires are almost equal. For example, the thick second wiring W2 is also formed between the PAD1-4 in the first row and the fourth column and the PAD2-4 in the second row and the fourth column (part indicated by D in FIG. 11). For this reason, even in the portion indicated by D in FIG. 11, the distance between the first outbound wiring OBW1 and the second inbound wiring IBW2 is substantially equal to the distance between the inbound wiring IBW and the distance between the outbound wiring OBW. Thus, the first wiring capacitance and the second wiring capacitance can be made comparable. That is, all the wiring capacities connected to the terminal PAD can be made the same level. Further, since the inbound wiring IBW at the portion indicated by D in FIG. 11 becomes thick and the wiring resistance of the inbound wiring IBW decreases, the wiring time constant (from the time constant of the first wiring to the time constant of the s-th wiring) for all wirings. ) Can be suppressed.

(Embodiment 4)
"Forms with different connection relationships"
FIG. 12 is a diagram illustrating a circuit configuration and a mounting area configuration of the electro-optical device according to the fourth embodiment. Next, the configuration of the signal line drive circuit 53 and the mounting area 20 according to the fourth embodiment will be described with reference to FIG. In addition, about the component same as Embodiment 1 thru | or 3, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  The electro-optical device 200 according to the present embodiment illustrated in FIG. 12 is different from the electro-optical device 200 according to the first embodiment illustrated in FIG. 5 in the arrangement relationship between the terminal PAD and the circuit. Other configurations are almost the same as those of the first embodiment.

  In the first to third embodiments (FIG. 5), the signal line driving circuit 53 is formed on the element substrate 62 by a thin film element. On the other hand, in this embodiment, the signal line driving circuit 53 is constituted by a semiconductor integrated circuit formed on a single crystal semiconductor substrate. Therefore, the number of terminals is the number n of columns of the pixels 41. The terminals PAD are arranged in s rows and t columns (st = n) in the mounting area 20, and the inbound wiring IBW from each terminal PAD becomes a signal line 43. In this embodiment, n = 4112, s = 4, and t = 1028. The signal line drive circuit 53 and the terminal PAD are connected via an FPC (not shown).

  The mounting area 20 is formed along the display area 40 outside the display area 40, and is disposed between the display area 40 and one side 67 of the outer periphery. Each terminal PAD is supplied with a precharge signal and an image signal from the signal line driving circuit 53 via an FPC (not shown), and the precharge signal and the image signal are supplied to n signal lines 43. Regarding each terminal PAD, the relationship between the inbound wiring IBW and the outbound wiring OBW is the same as in the first to third embodiments.

  The present invention is not limited to the above-described embodiment, and various modifications and improvements can be added to the above-described embodiment. A modification will be described below.

(Modification 1)
"Outbound wiring has different forms"
FIGS. 13A and 13B are diagrams illustrating the wiring shape according to the first modification. FIG. 13A is a diagram illustrating the wiring shape related to one row of terminals. FIG. 13B is a schematic plan view illustrating the configuration of the electro-optical device. It is. Next, an electro-optical device 200 according to Modification 1 will be described with reference to FIG. In addition, about the component same as Embodiment 1 thru | or 4, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  The electro-optical device 200 of this modification shown in FIG. 13 is different in the outbound wiring OBW from the electro-optical device 200 of the first embodiment shown in FIG. Other configurations are almost the same as those of the first embodiment.

  In the first embodiment (FIG. 6), the sth outbound wiring OBWs is also arranged at the s-th row terminal PADs. On the other hand, in this modification, the outbound wiring OBW is not formed at the terminal PADs in the sth row. The outbound wiring OBW may not be formed at the terminal PADs in the last row (s-th row) that is farthest from the display region 40 and closest to the outer side edge 67 of the element substrate 62. Also in this case, at least in the mounting area 20, the sum of the length of the inbound wiring IBW and the length of the outbound wiring OBW is made equal for each terminal. If s = 4 as in this modification, the sum of the length of the first inbound wiring IBW1 and the length of the first outbound wiring OBW1 is equal to the length of the second inbound wiring IBW2 and the second outbound wiring OBW2. Is equal to the sum of the length of the third inbound wiring IBW3 and the length of the third outbound wiring OBW3, and further equal to the length of the fourth inbound wiring IBW4. Even with such a configuration, the same effects as those of the first to fourth embodiments can be obtained.

(Modification 2)
“Outband wiring has different end points”
In the embodiments described so far, the outband wiring OBW has an end point in front of the one side 67 of the outer periphery (on the display area 40 side), but may reach the one side 67 of the outer periphery. Or you may pass through the process cut | disconnected in the position of the outer periphery one side 67 in the subsequent manufacturing process, extending over the outer periphery one side 67, and forming.

  Gi ... i-th scanning line, IBW1 ... first inbound wiring, IBW2 ... second inbound wiring, IBW3 ... third inbound wiring, IBW4 ... fourth inbound wiring, OSj ... j-th original signal, OBW1 ... 1st outbound wiring, OBW2 ... 2nd outbound wiring, OBW3 ... 3rd outbound wiring, OBW4 ... 4th outbound wiring, PAD1 ... 1st line terminal, PAD2 ... 2nd line terminal, PAD3 ... 3rd row terminal, PAD4 ... 4th row terminal, SEL1 ... 1st series signal, SEL2 ... 2nd series signal, SEL3 ... 3rd series signal, SEL4 ... 4th series signal, Sjk + p ... (jk + p) columns Eye signal line, SW1 ... first switch, SW2 ... second switch, SW3 ... third switch, SW4 ... fourth switch, W1 ... first wiring, DESCRIPTION OF SYMBOLS 2 ... 2nd wiring, W3 ... 3rd wiring, W4 ... 4th wiring, 20 ... Mounting area, 30 ... Control apparatus, 32 ... Signal supply circuit for a display, 33 ... Memory circuit, 40 ... Display area, 41 ... Pixel, 42 ... Scanning line, 43 ... Signal line, 44 ... Pixel transistor, 45 ... Pixel electrode, 46 ... Liquid crystal, 47 ... Common electrode, 48 ... Shading film, 50 ... Drive unit, 51 ... Drive circuit, 52 ... Scanning Line drive circuit, 53... Signal line drive circuit, 62... Element substrate, 63 .. counter substrate, 64... Sealing material, 65. Device: 201 ... first panel, 202 ... second panel, 203 ... third panel, 1000 ... projection type display device, 1100 ... illumination optical system, 1300 ... projection optical system, 1400 ... projection surface.

Claims (11)

Comprising an element substrate having a display area;
The element substrate includes a first row terminal, a second row terminal, a first wiring connected to the first row terminal, and a second row connected to the second row terminal. Of wiring and is formed,
The terminal in the first row is disposed between the display region and one side of the outer periphery of the element substrate,
The terminal of the second row is disposed between the terminal of the first row and one side of the outer periphery,
The first wiring extends between the display region and one side of the outer periphery,
The electro-optical device, wherein the second wiring extends between the display region and the second row terminal.   The electro-optical device according to claim 1, wherein the second wiring extends between the display area and one side of the outer periphery.   The electro-optical device according to claim 1, wherein at least the length of the first wiring adjacent to each other and the length of the second wiring are substantially equal.   4. The electro-optical device according to claim 1, wherein the first wiring and the second wiring are straight lines. 5.   5. The electro-optic according to claim 4, wherein the width of the second wiring is larger than an average value of the width of the second wiring at a connection portion with the terminal of the second row. apparatus. An element substrate having a display area and a drive circuit;
The drive circuit is disposed between the display region and one side of the outer periphery of the element substrate,
The element substrate includes a first row terminal, a second row terminal, a first wiring connected to the first row terminal, and a second row connected to the second row terminal. Of wiring and is formed,
The terminal of the first row is disposed between the drive circuit and one side of the outer periphery of the element substrate,
The terminal of the second row is disposed between the terminal of the first row and one side of the outer periphery,
The first wiring extends between the drive circuit and one side of the outer periphery,
The electro-optical device, wherein the second wiring extends between the driving circuit and a terminal of the second row.   The electro-optical device according to claim 6, wherein the second wiring extends between the driving circuit and one side of the outer periphery.   8. The electro-optical device according to claim 6, wherein at least the length of the first wiring adjacent to each other is substantially equal to the length of the second wiring.   The electro-optical device according to claim 6, wherein the first wiring and the second wiring are straight lines.   10. The electro-optic according to claim 9, wherein the width of the second wiring is larger than the average value of the widths of the second wiring at a connection portion with the terminal of the second row. apparatus.   An electronic apparatus comprising the electro-optical device according to claim 1.

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