JP2018017790A - Electro-optical device and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow connection between a wiring substrate and another component to be easily carried out, even when a plurality of terminals having different distances from a pixel region are formed, such as a compact and high-definition panel.SOLUTION: An electro-optical device 1 comprises: an element substrate 110A on which a pixel region 200 including a plurality of pixels is formed; a first terminal 121 formed on the element substrate 110A; a second terminal 131 formed at a position at a side opposite to the pixel region 200 so as to interpose the first terminal 121 of the element substrate 110A therebetween; a first wiring substrate 20 which has one end being disposed on the element substrate 110A and connected to the first terminal 121, and has a shape extending from the one end to the other end; and a second wiring substrate 30 which has one end being disposed on the element substrate 110A and connected to the second terminal 131, and has a shape extending from one end to the other end. The first wiring substrate 20 and the second wiring substrate 30 have shapes in which end parts 21A and end parts 31A are shifted in positions.SELECTED DRAWING: Figure 3

Description

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

In an electro-optical device provided with a liquid crystal or the like, the number of terminals to be mounted is remarkably increased as the number of pixels is increased. Patent Document 1 describes that a plurality of rows of terminals are formed along one side of the display panel substrate. In the technology of Patent Document 1, a plurality of terminals in each row and an FPC
Connect to (Flexible Print Circuit) using the following procedure. First, one end of the first FPC is crimped and connected to the display panel substrate, and then the other end is connected to a PCB (Printed Circuit Boar).
d) Crimp connection with. Next, the first FPC is bent and positioning for connecting the second FPC and the PCB is performed, and then the positional deviation due to the previous crimping connection of the PCB is adjusted, so that the second FP
C is crimped. In Patent Document 2, in order to increase the ratio of the display area to the panel size, a plurality of power FPCs and a plurality of data FPCs are provided as organic EL (Electro-Lumi).
nescence), it is described to be arranged two-dimensionally with respect to the panel.

JP 2011-221440 A JP 2006-235280 A

The technique of Patent Document 1 involves a complicated process of connecting the display panel substrate and the FPC, and is not easy with a small, high-definition panel. In the technique of Patent Document 2, the power FPC and the data FPC that are arranged in an overlapping manner have substantially the same length, and are in a positional relationship in which these terminals overlap. For this reason, when connecting the power FPC and the data FPC to the corresponding locations on the panel control board, care must be taken in the location and order of connection.
The present invention has been made in view of the above-described circumstances, and one of its purposes is an electro-optical device in which a plurality of terminals connected to a wiring board are formed at different distances from a pixel region. It is an object to facilitate connection between a wiring board and other components.

In order to achieve the above object, an electro-optical device according to the present invention includes an element substrate having a pixel region including a plurality of pixels, a first terminal formed on the element substrate, and the first terminal of the element substrate. A first terminal having a shape in which a second terminal formed at a position opposite to the pixel region across the pixel and one end disposed on the element substrate and connected to the first terminal and a wiring extending from the one end to the other end A wiring board; and a second wiring board having one end disposed on the element substrate and connected to the second terminal and having a wiring extending from the one end to the other end, the first wiring board, and the second wiring board. The wiring board is different in position between the first end at the other end of the first wiring board and the second end at the other end of the second wiring board.

In the electro-optical device according to the aspect of the invention, the first end portion and the second end portion are displaced in a direction different from a direction in which the first wiring substrate and the second wiring substrate overlap. Thus, since the distance between the first end and the second end is secured, for example, in a small, high-definition panel, a plurality of terminals having different distances from the pixel region are formed on the element substrate. Even if it is, it is possible to easily connect the wiring board connected to the small, high-definition panel with other components.

In the present invention, the first wiring board may have a portion bent in a first direction, and the second wiring board may have a portion bent in a direction different from the first direction.
According to this invention, since the first end portion and the second end portion are shifted in a direction different from the direction in which the first wiring substrate and the second wiring substrate overlap, the first end portion and the second end portion are Is in a positional relationship that is unlikely to hinder connection with other parts.

In the present invention, the first wiring board may have a portion bent in a first direction, and the second wiring board may have a portion bent in a direction different from the first direction.
According to the present invention, since the first wiring board and the second wiring board have portions that are bent in opposite directions, the first end and the second end are connected to other parts. The positional relationship is difficult to obstruct.

In the present invention, the shape of the first wiring board and the shape of the second wiring board may be the same.
According to the present invention, the first wiring board and the second wiring board do not need to have different shapes.

In the present invention, the distance between the first terminal and the second terminal is a distance from the one end to the other end of the first wiring board and a distance from the one end to the other end of the second wiring board. It may be shorter than the difference.
According to the present invention, the distance between the first terminal and the second terminal is made shorter than the difference in distance from one end to the other end of the first wiring board and the second wiring board, thereby enlarging the element substrate. Can be suppressed.

In the present invention, the first wiring substrate has a first drive circuit that supplies a signal for driving a part of the pixels in the pixel region to the first terminal, and the second wiring substrate is formed in the pixel region. You may have the 2nd drive circuit which supplies the signal which drives another pixel to the said 2nd terminal.
According to the present invention, even when the first wiring board and the second wiring board are used for driving pixels, the wiring board and other components can be easily connected.

  The present invention can be considered as an electronic apparatus in addition to an electro-optical device.

1 is a perspective view illustrating a configuration of an electro-optical device according to an embodiment of the invention. Explanatory drawing of the electrical structure of the wiring board which concerns on the same embodiment. The front view of the liquid crystal panel provided with the wiring board which concerns on the structural example 1 of the embodiment (Z-axis direction view of FIG. 1). FIG. 3 is a block diagram showing a control system of the electro-optical device according to the embodiment. The front view of the liquid crystal panel provided with the wiring board which concerns on the structural example 2 of the embodiment (Z-axis direction view of FIG. 1). FIG. 6 is a side view of the liquid crystal panel provided with the wiring board according to the embodiment (viewed in the VI direction in FIG. 5). The front view of the liquid crystal panel provided with the wiring board which concerns on the structural example 3 of the embodiment (Z-axis direction view of FIG. 1). The side view of the liquid crystal panel provided with the wiring board which concerns on the same embodiment (the VIII direction view of FIG. 7). 1 is a diagram showing a projector to which an electro-optical device of the invention is applied.

Embodiments of the present invention will be described below with reference to the drawings. In each of the drawings referred to in the following description, the scale may be different from the actual size so that each member, each region, and the like can be recognized.
FIG. 1 is a perspective view showing a configuration of an electro-optical device 1 according to an embodiment of the present invention. In the following description, each direction may be expressed using an orthogonal coordinate system including the X axis, the Y axis, and the Z axis shown in FIG. The X axis and the Y axis extend in a direction parallel to one side of the rectangular pixel region 200. The Z axis extends in the direction of the line of sight when the liquid crystal panel 100 is viewed from the front. The direction from the front to the back of the liquid crystal panel 100 is the Z-axis positive direction, and the direction from the back to the front is the Z-axis negative direction.
The electro-optical device 1 includes a liquid crystal panel 100 and a first wiring board 20 having a first drive circuit 22.
And a second wiring board 30 having a second drive circuit 32. The first wiring board 20 and the second wiring board 30 are each a so-called COF (Chip on Film). LCD panel 1
00 is driven by two drive circuits of the first drive circuit 22 and the second drive circuit 32, and 1
It is possible to drive twice as many pixels (double data lines) that can be driven by one driving circuit.

The liquid crystal panel 100 corresponds to an electro-optical panel that performs an electro-optical operation, and here is a transmissive liquid crystal panel. The electro-optical operation includes a display operation for displaying an image in the pixel region 200.
In the liquid crystal panel 100, an element substrate 110A on which a plurality of pixel electrodes (not shown) are formed and an opposite substrate 110B on which a common electrode (not shown) is provided are bonded together with a certain gap therebetween. In addition, for example, a VA (Vertical Alignment) type liquid crystal is sealed.
The element substrate 110A and the counter substrate 110B are made of a light-transmitting material such as glass or quartz.

The pixel region 200 of the element substrate 110A is formed on the surface facing the counter substrate 110B. Here, the pixel region 200 is a rectangular region including a plurality of pixels. Specifically, the pixel region 200 is formed by a plurality of pixel electrodes arranged in a matrix, and the pixel electrodes include a plurality of rows of scanning lines extending in the X-axis direction and a plurality of columns of data lines extending in the Y-axis direction. It is arranged corresponding to each intersection with. On the surface of the element substrate 110A facing the counter substrate 110B, a scanning line driving circuit 210 is provided along one side of the peripheral region of the pixel region 200 on the element substrate 110A. The plurality of rows of scanning lines in the pixel region 200 are connected to the scanning line driving circuit 210 and supplied with scanning signals for selecting pixels. A data line selection circuit 220, a first terminal group 120, and a second terminal group 130 are formed on the other side orthogonal to the side where the scanning line driving circuit 210 is provided. The plurality of columns of data lines in the pixel region 200 are connected to the data line selection circuit 220 and supplied with data signals. The first terminal group 120 and the second terminal group 130 are arranged in parallel in the Y axis direction along the data line selection circuit 220, respectively, without increasing the size (width) of the liquid crystal panel 100 in the X axis direction. A high-definition and small-sized liquid crystal panel 100 is configured.

The first terminal group 120 includes a plurality of first terminals 121 arranged in the X-axis direction. First terminal group 1
Reference numeral 20 denotes a position farther from the pixel region 200 than the data line selection circuit 220, specifically, Y
It is located on the end side of the element substrate 110A in the axial direction. The plurality of first terminals 121 include terminals to which data signals and timing signals described later are input, and are connected to the data line selection circuit 220. At least the plurality of first terminals 121 to which data signals are input have the same shape, the same size, and a rectangular shape in the Z-axis direction in this embodiment. In addition, at least the first terminals 121 to which data signals are input are arranged at an equal pitch in this embodiment.

The second terminal group 130 includes a plurality of second terminals 131 arranged in the X-axis direction. Second terminal group 1
Reference numeral 30 denotes a position farther from the pixel area 200 than the first terminal group 120, specifically, is located on the opposite side of the pixel area 200 across the first terminal group 120. That is, the second terminal group 130 is
The first terminal group 120 is located on the end side of the element substrate 110A in the Y-axis direction. The plurality of second terminals 131 include terminals to which data signals and timing signals described later are input, and are connected to the data line selection circuit 220. At least a plurality of second terminals 13 to which data signals are input.
In the present embodiment, reference numeral 1 is the same shape, the same size, and a rectangle when viewed in the Z-axis direction. In addition, at least the plurality of second terminals 131 to which data signals are input are arranged at an equal pitch in this embodiment. In the present embodiment, the first terminal group 120 and the second terminal group 130 have the same position in the X-axis direction between the pair of the first terminal 121 and the second terminal 131.

One end of the first wiring board 20 is disposed on the element substrate 110 </ b> A and is connected to the plurality of first terminals 121 of the first terminal group 120. One end of the second wiring board 30 is disposed on the element substrate 110 </ b> A and is connected to the plurality of second terminals 131 of the second terminal group 130. The region connected to the first terminal 121 of the first wiring board 20 is arranged so as not to overlap the second wiring board 30 in the Z-axis direction. A region connected to the second terminal 131 of the second wiring board 30 is arranged to overlap the first wiring board 20 in the Z-axis direction.

A drive signal for driving the liquid crystal panel 100 is supplied to the first terminal 121 via the first wiring substrate 20. A drive signal for driving the liquid crystal panel 100 is supplied to the second terminal 131 via the second wiring substrate 30. The drive signal includes various signals and various voltages. As an example of driving according to this signal and voltage, the scanning line driving circuit 210 performs scanning line driving for supplying a scanning signal to each scanning line of a plurality of scanning lines. Further, the data line selection circuit 220 selects each data line of the data lines in a plurality of columns based on the data signal and the timing signal included in the drive signal,
In order to display an image in the pixel region 200, data line driving for supplying a data signal to the pixel is performed. The number of first terminals 121 and second terminals 131 is mainly defined by the number of data lines, the function of the data line selection circuit 220, and the size (width) of the liquid crystal panel 100 in the X-axis direction.

FIG. 2 is a diagram for explaining the electrical configuration of the first wiring board 20 and the second wiring board 30 (viewed in the Z-axis direction of FIG. 1). The configurations of the first wiring board 20 and the second wiring board 30 are substantially the same. For this reason, in FIG. 2, the reference numerals of the 30 elements of the second wiring board are shown in parentheses. Moreover, FIG. 2 is a figure explaining the electrical structure of the 1st wiring board 20 and the 2nd wiring board 30, and a shape is not limited to FIG. The first wiring board 20 is made of the base material 2
1 and a first drive circuit 22 formed on the substrate 21. The base material 21 is a substrate (for example, a film substrate or a flexible substrate) formed of a deformable material, and is an FPC (Flexible Print Circuit) in which a plurality of wirings 23 are formed. The first drive circuit 22 generates a drive signal or the like under the control of the upper circuit and supplies it to the liquid crystal panel 100. The first drive circuit 22 has T
It is electrically and mechanically fixed to the back surface of the base material 21 using AB (Tape Automated Bonding) technology. The plurality of wirings 23 extend in the Y-axis direction from one end side connected to the first terminal 121 of the liquid crystal panel 100 in the first wiring substrate 20 (base material 21) toward the opposite other end side. The first drive circuit 22 is connected to some signal lines of the wiring 23 of the base material 21. One end of each of the plurality of wirings 23 is connected to the terminal 25, and the first terminal 12 is connected via the terminal 25.
1 is connected.

The other end of the first wiring board 20 is a PCB (Printed Circuit Board) which will be described later in this embodiment.
) 60 is provided, and a connection unit 24 to which various signals are input is provided. The connection portion 24 constitutes an end portion 21A at the other end of the first wiring board 20. The end 21A corresponds to the first end of the present invention.
Note that some of the first terminals 121 of the liquid crystal panel 100 are connected to a wiring 23 that does not pass through the first drive circuit 22. Examples of the wiring 23 include a power supply wiring, a ground wiring, and a circuit for supplying a drive signal without passing through the first drive circuit 22.

The second wiring board 30 includes a base material 31, a second drive circuit 32, and wiring 33. The configuration of the second wiring board 30 is “base material 21” in the description of the configuration of the first wiring board 20,
“First Drive Circuit 22”, “Wiring 23”, “Terminal 25”, “First Terminal 121”, “End 21
A ”and“ connecting portion 24 ”are connected to“ base material 31 ”,“ second drive circuit 32 ”,“ wiring 33 ”,
This can be explained by replacing “terminal 35”, “second terminal 131”, “end 31A”, and “connecting portion 34”. As shown in FIG. 2, the connection portion 34 constitutes an end portion 31 </ b> A at the other end of the second wiring board 30. The end 31A corresponds to the second end of the present invention.

Next, Configuration Example 1, Configuration Example 2, and Configuration Example 3 will be described as configuration examples of the first wiring substrate 20 and the second wiring substrate 30. The first wiring board 20 and the second wiring board 30 are made of PCB.
The shape is such that the connection with 60 can be easily performed.

(Configuration example 1)
FIG. 3 is a front view of the liquid crystal panel 100 provided with the first wiring board 20 and the second wiring board 30 according to the configuration example 1 (viewed in the Z-axis direction in FIG. 1).
As shown in FIG. 3, the base material 21 of the first wiring board 20 includes a first portion 211 and a second portion 21.
2. The first portion 211 is a portion that extends linearly from one end on the liquid crystal panel 100 side in the Y-axis direction. The second portion 212 is a portion from the portion continuous with the first portion 211 to the end portion 21A. The second portion 212 is bent from the first portion 211 toward the negative direction in the X-axis direction (bent in the first direction). The connection unit 24 is connected to the PCB 60 by being inserted into (attached to) the connector 40 provided on the PCB 60.
The first drive circuit 22 is disposed in the first portion 211.

The base material 31 of the second wiring board 30 includes a first portion 311 and a second portion 312. The first portion 311 is a portion that extends linearly in the Y-axis direction from one end on the liquid crystal panel 100 side. The second portion 312 is a portion from the portion continuous with the first portion 311 to the end portion 31A. The second portion 312 is bent from the first portion 311 toward the positive direction in the X-axis direction (bent in the second direction). The connecting portion 34 is a connector 5 provided on the PCB 60.
It is connected to the PCB 60 by being inserted (attached) to 0. The second drive circuit 32 is disposed in the second portion 312 but is disposed so as not to overlap the first drive circuit 22 in the Z-axis direction.

The end 21A and the end 31A have the same position in the Y-axis direction. However, the end 21
A and the end portion 31A are located at positions shifted in the X-axis direction and are arranged so as not to overlap in the Z-axis direction. Here, the distance in the X-axis direction between the end 21A and the end 31A is “
D1 "(where D1> 0). On the other hand, the distance between the connector 40 and the connector 50 in the X-axis direction is “D0”. Here, since the connector 40 and the connector 50 are arranged apart from each other, D0> 0. However, the first wiring board 20 and the second wiring board 30 have shapes that satisfy the relationship of D1 ≧ D0.

The first wiring board 20 and the second wiring board 30 have the shapes shown in FIG.
This is because 1A and the end portion 31A facilitate connection between the connection portion 24 and the connector 40 and connection between the connection portion 34 and the connector 50. Since the connecting portion 24 and the connecting portion 34 are at positions shifted in the Z-axis direction, the presence of the connecting portion 34 is unlikely to be an obstacle when the connecting portion 24 is connected to the connector 40. Similarly, when the connection portion 34 is connected to the connector 40, the presence of the connection portion 24 is unlikely to be an obstacle. That is, the connection between the connection portion 24 and the connector 40 and the connection portion 34.
It can be said that the connection with the connector 50 may be made first. Connection 2
From the positional relationship between 4 and the connecting portion 34 and the positional relationship between the connector 40 and the connector 50, the combination of the connecting portion and the connector to be connected is also clear.

FIG. 4 is a block diagram illustrating a control system of the electro-optical device 1. As shown in FIG.
The B60 includes a control circuit 61 that is a higher-order circuit that controls each unit of the electro-optical device 1.
An image signal supplied from an external device is supplied to the control circuit 61 in synchronization with the synchronization signal. This image signal is digital data that designates a gradation value for each of a plurality of pixels provided in the liquid crystal panel 100. The control circuit 61 generates various control signals and outputs them through the connector 40 and the connector 50 in synchronization with the synchronization signal, thereby controlling the first drive circuit 22 and the second drive circuit 32. The first drive circuit 22 and the second drive circuit 32 generate a drive signal based on the signal supplied from the control circuit 61 and supply it to the liquid crystal panel 100.
The first drive circuit 22 supplies a drive signal for driving pixels in a partial region T1 of the pixel region 200 to the first terminal 121, and the second drive circuit 32 applies pixels in another region T2 of the pixel region 200. A drive signal for driving is supplied to the second terminal 131. Here, the region T1 and the region T2 are regions obtained by dividing the pixel region 200 into two equal parts in the X-axis direction. However, the method of dividing the region is not limited to this example, and a plurality of regions T1 and T2 are arranged in the X-axis direction. It can also be arranged alternately. The number of regions T1, the number of T2, the number of data lines included in the regions T1 and T2, and the like are determined by the first drive circuit 22.
It can be set by the functions of the second drive circuit 32 and the data line selection circuit 220. The control circuit 61 performs power supply control for supplying a power supply potential to each unit of the electro-optical device 1.

(Configuration example 2)
FIG. 5 is a front view (viewed in the Z-axis direction of FIG. 1) of the liquid crystal panel 100 provided with the first wiring board 20 and the second wiring board 30 according to the configuration example 2. In FIG. 6, one end of the first wiring board 20 and the second wiring board 30 is connected to the first terminal 121 and the second terminal 13 of the liquid crystal panel 100.
1 is a side view of the electro-optical device 1 with the other end connected to the PCB 60 and the other end connected to the PCB 60 (viewed in the direction of arrow VI in FIG. 5).
In Configuration Example 2, the shape of the first wiring board 20 (in other words, the base material 21) and the second wiring board 3 are used.
The shape of 0 (in other words, the base material 31) is the same. That the shape is the same includes at least the same design concept. It is not necessary that the shapes of the first wiring board 20 and the second wiring board 30 be exactly the same, and for example, a difference caused by a tolerance or the like is allowed. The first drive circuit 22 and the second drive circuit 32 are arranged so as not to overlap in the Z-axis direction.

Here, the base material 21 and the base material 31 are formed in a rectangular shape when viewed in the Z-axis direction. The distances from one end to the other end of the base material 21 and the base material 31 in the Y-axis direction are both “L”. The distance between the pair of first terminal 121 and second terminal 131 is “D3”. Here, the distance between the first terminal 121 and the second terminal 131 is the distance between the center points of each terminal in the Y-axis direction. In this case, the distance in the Y-axis direction between the end portion 21A and the end portion 31A of the first wiring board 20 and the second wiring board 30 connected to the first terminal 121 and the second terminal of the liquid crystal panel 100 is as follows. Inevitably becomes “D3”. On the other hand, in the configuration example 2, the connector 40 and the connector 50 of the PCB 60 have the same position in the X-axis direction, and Y
The positions in the axial direction are shifted and the distance in the Y-axis direction is “D2”. Here, the distance between the connector 40 and the connector 50 is specified by the distance between the center points in the Y-axis direction. The first wiring board 20 and the second wiring board 30 have shapes that satisfy the relationship D3 ≧ D2.

By adopting the shape of the first wiring board 20 and the second wiring board 30 as described above, the connecting portion 2
The connection between the connector 4 and the connector 40 and the connection between the connector 34 and the connector 50 are facilitated. In the configuration example 2, the distance “D2” between the connector 40 and the connector 50 in the Y-axis direction.
”, The position of the first terminal 121 and the second terminal 131, that is, the distance“ D3 ”is determined, so that even if the first wiring board 20 and the second wiring board 30 have the same shape, The connecting part 24 and the connecting part 34 are displaced from each other in the Y-axis direction. Therefore, when the connection part 34 is connected to the connector 50, the presence of the connection part 24 is unlikely to be an obstacle. Further, the connecting portion 24 and the connecting portion 3
4 and the positional relationship between the connector 40 and the connector 50, the combination of the connection portion to be connected and the connector is also clear.
Since the control system of the electro-optical device 1 may be the same as that of the configuration example 1 described above, the description thereof is omitted.

(Configuration example 3)
FIG. 7 is a front view (viewed in the Z-axis direction of FIG. 1) of the liquid crystal panel 100 provided with the first wiring board 20 and the second wiring board 30 according to the configuration example 3. In FIG. 8, one end of the first wiring board 20 and the second wiring board 30 is connected to the first terminal 121 and the second terminal 13 of the liquid crystal panel 100.
1 is a side view of the electro-optical device 1 in a state of being connected to each other and having the other end connected to the PCB 60 (viewed along arrow VIII in FIG. 7).
In the configuration example 3, the distance between the pair of the first terminal 121 and the second terminal 131 is “D4”, which is smaller than “D3” described in the configuration example 2 (that is, D4 <D3). Furthermore, the distance from one end to the other end in the Y-axis direction of the first wiring board 20 (in other words, the base material 21) and the second wiring board 30 (in other words, the base material 31) is made different. . Specifically, the base material 21
Is “L1”, the base material 31 is “L2”, and L1 <L2. L1 and L2 denote the first wiring board 2 connected to the first terminal 121 and the second terminal 131 of the electro-optical panel 100, respectively.
0 and the distance in the Y-axis direction between the end 21A and the end 31A of the second wiring board 30 is (
As in the case of the configuration example 2), it is determined to be “D3”.

By adopting the shape of the first wiring board 20 and the second wiring board 30 as described above, the distance in the Y-axis direction between the pair of the first terminal 121 and the second terminal 131 is smaller than that in the configuration example 2. Even when the connection is made, the connection 24 and the connector 40 are connected, and the connection 34 and the connector 5 are connected.
Connection with zero can be facilitated. Thereby, since the dimension in the Y-axis direction of the element substrate 110A can be reduced, enlargement associated with high definition of the electro-optical device 1 can be suppressed.
Since the control system of the electro-optical device 1 may be the same as that of the configuration example 1 described above, the description thereof is omitted.

[Modification]
The present invention can be implemented in a form different from the above-described embodiment. Further, the following modifications may be combined as appropriate.
The liquid crystal panel 100 may include three or more terminals instead of two terminal groups. Also in this case, the first wiring board and the second wiring board are the first end of the other end of the first wiring board.
Any shape may be used as long as the positions of the end and the second end of the other end of the second wiring board are shifted. Furthermore, the liquid crystal panel 100 includes three or more wiring boards, three or more terminal groups,
You may connect.
Further, the specific shapes of the connection part and the connector are not particularly limited. The end portions of the first wiring substrate 20 and the second wiring substrate 30 are specified by the end surfaces of the base materials 21 and 31 when connection portions such as the connection portion 24 and the connection portion 34 are not provided. In addition, the liquid crystal panel 100 has a first
The shapes of the wiring board 20 and the second wiring board 30 are not limited to the shapes described with reference to FIGS.
Further, the first wiring board 20 and the second wiring board 30 may be configured such that a plurality of components are formed separately and connected. For example, in the configuration example 1, the first parts 211 and 311;
The second portions 212 and 312 may be formed separately and connected to each other.

The electro-optical panel of the present invention may not be a transmissive liquid crystal panel, and may be, for example, a reflective liquid crystal panel. In addition, the electro-optical panel of the present invention may perform an electro-optical operation,
A panel using an electro-optical element other than a liquid crystal such as an organic EL panel may be used.

Next, a projection display device (projector) using the liquid crystal panel 100 as a light valve will be described as an example of an electronic apparatus using the electro-optical device 1 according to each of the embodiments described above. FIG. 9 is a plan view showing the configuration of the projector.
As shown in FIG. 9, a projector 2100 is provided with a lamp unit 2102 composed of a white light source such as a halogen lamp. The projection light emitted from the lamp unit 2102 is separated into three primary colors of R, G, and B by three mirrors 2106 and two dichroic mirrors 2108 that are arranged inside. Are respectively guided to light valves 100R, 100G, and 100B. Note that B light has a longer optical path than other R and G colors, and therefore, in order to prevent loss thereof, the B light passes through a relay lens system 2121 including an incident lens 2122, a relay lens 2123, and an exit lens 2124. Be guided.

In the projector 2100, the electro-optical device 1 including the liquid crystal panel 100 has an R color,
Three sets are provided corresponding to each of the G color and the B color. Light valve 100R, 100
The configurations of G and 100B are the same as those of the liquid crystal panel 100 described above.
It is connected to the PCB 60 via the wiring board 20 and the second wiring board 30. R color, G color,
And B color primary color component video signals are respectively supplied from external higher-level circuits, and P
The light valves 100R, 100G, and 100 are each driven by the CB60.
The light modulated by the light valves 100R, 100G, and 100B, respectively,
The light enters the dichroic prism 2112 from three directions. In the dichroic prism 2112, the R and B light beams are refracted by 90 degrees, while the G light beam travels straight. Therefore, after the images of the respective primary colors are combined, a color image is projected onto the screen 2120 by the projection lens 2114.

Since light corresponding to each of R color, G color, and B color is incident on the light valves 100R, 100G, and 100B by the dichroic mirror 2108, it is not necessary to provide a color filter. Further, the transmission images of the light valves 100R and 100B are projected after being reflected by the dichroic prism 2112, whereas the transmission image of the light valve 100G is projected as it is, so that the light valves 100R and 10B are projected.
The horizontal scanning direction by 0B is opposite to the horizontal scanning direction by the light valve 100G,
It is configured to display an image with the left and right reversed.

As electronic devices, in addition to the projector described with reference to FIG. 9, a television, a viewfinder type / monitor direct-view type video tape recorder, a car navigation device, a pager, an electronic notebook, a calculator, a word processor, a workstation , A video phone, a POS terminal, a digital still camera, a mobile phone, a smartphone, a tablet terminal, and other devices equipped with a touch panel. The electro-optical device 1 can be applied to these various electronic devices.

DESCRIPTION OF SYMBOLS 1 ... Electro-optical apparatus, 100 ... Liquid crystal panel, 110A ... Element board | substrate, 110B ... Opposite board | substrate, 1
20 ... 1st terminal group, 121 ... 1st terminal, 130 ... 2nd terminal group, 131 ... 2nd terminal, 20 ...
1st wiring board, 21 ... base material, 21A ... end, 22 ... 1st drive circuit, 23 ... wiring, 24 ... connection part, 25 ... terminal, 30 ... 2nd wiring board, 31 ... base material, 31A ... end Part 32 ... second drive circuit 33 ... wiring 34 ... connecting part 35 ... terminal 40,50 ... connector 60 ... PCB
61 ... Control circuit, 200 ... Pixel area, 210 ... Scanning line drive circuit, 220 ... Data line selection circuit, 2100 ... Projector.

Claims (7)

An element substrate having a pixel region including a plurality of pixels;
A first terminal formed on the element substrate;
A second terminal formed at a position opposite to the pixel region across the first terminal of the element substrate;
A first wiring board having one end disposed on the element substrate and connected to the first terminal, and a wiring extending from the one end to the other end;
A second wiring substrate having one end disposed on the element substrate and connected to the second terminal, and a wiring extending from the one end to the other end;
The first wiring board and the second wiring board have different positions of the first end at the other end of the first wiring board and the second end at the other end of the second wiring board. Optical device. The electro-optical device according to claim 1, wherein the first end portion and the second end portion are shifted in a direction different from a direction in which the first wiring substrate and the second wiring substrate overlap. . The first wiring board has a portion bent in a first direction;
The electro-optical device according to claim 2, wherein the second wiring board has a portion that is bent in a direction different from the first direction. The electro-optical device according to claim 1, wherein a shape of the first wiring board is the same as a shape of the second wiring board. The distance between the first terminal and the second terminal is shorter than the difference between the distance from the one end to the other end of the first wiring board and the distance from the one end to the other end of the second wiring board. The electro-optical device according to claim 1. The first wiring board has a first drive circuit that supplies a signal for driving a part of the pixels in the pixel region to the first terminal;
The said 2nd wiring board has a 2nd drive circuit which supplies the signal which drives the other pixel of the said pixel area | region to the said 2nd terminal. Any one of Claims 1-5 characterized by the above-mentioned. The electro-optical device described.   An electronic apparatus comprising the electro-optical device according to claim 1.

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