JP2008233606A - Active-matrix circuit board and display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an active-matrix driven display device which secures large display area without lowering display quality nor causing a great rise in manufacturing cost, and an active-matrix circuit board as a component thereof. <P>SOLUTION: At a peripheral portion of an avoided portion, some of a plurality of wiring lines (power lines) are connected to each other through a pixel electrode provided in a layer (upper layer side) different from themselves, so the avoided portion is bypassed through the pixel electrode. Thus, the avoided portion is bypassed through the pixel electrode, and the number of the wiring lines bypassing the avoided portion is decreased. The area of the part where the avoided portion is bypassed is made as small as possible, and thereby larger display area is secured. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an active matrix circuit substrate including a drive electrode and a wiring pattern, and a display device including the active matrix circuit substrate.

In recent years, with the widespread use of various display panels (displays) composed of electro-optical devices, it has been studied to use the display panels for display units such as watches and various instruments. Thus, as a display panel (display device) used as a display unit of a clock or various instruments, for example, a pointer for indicating time on a clock or indicating a scale (numerical value) on a gauge is attached. Some need to form holes. As a display panel in which a through hole is formed, a liquid crystal display panel based on STN liquid crystal that is driven by a passive matrix has been proposed (see, for example, Patent Document 1).
JP 2001-75112 A

  By the way, even in a display panel (display device) used for a clock or the like, not only displays a number indicating a time, but also calendar information such as “date” and “day of the week”, and also a device such as a clock. Since various types of attached functions (timer function, stopwatch function, radio wave reception function, etc.) are also displayed, there is a demand for display using active matrix driving instead of passive matrix driving.

  However, in order to perform active matrix driving, it is necessary to arrange wiring such as data lines and scan lines vertically and horizontally. As described above, when a through-hole is formed in an active matrix circuit board that is a component of a display panel by a drill or the like, a data line and a scan line at the opening position are damaged. For example, when a display panel using this active matrix circuit board is a rectangular screen, display is performed in a cross-shaped part including a through hole, that is, a display part by a pixel electrode connected to a wiring passing through the through hole by design. It will not be done. For this reason, in a matrix display body having a through hole, it is necessary to detour a wiring portion passing through the through hole in order to avoid the through hole with respect to the wiring passing through the through hole by design.

  In addition, in the above-mentioned patent document 1, in order to use together with an analog indicator instrument, in the liquid crystal display panel having a through hole in the display unit, the axis of the through hole is formed in the X electrode and the Y electrode that are wired around the through hole. By forming each arc-shaped electrode part with a predetermined curvature centering on the center, high-density wiring is possible by effectively using the space around the through hole, and a unique display is provided around the through hole It is described that a liquid crystal display panel that can perform the above is provided. However, this Patent Document 1 does not consider the active matrix driving by the TFT panel at all, and therefore cannot satisfy the above-mentioned demand for performing the display by the active matrix driving.

  As described above, in an active matrix type high-definition display device, it is necessary to bypass wiring such as data lines (signal lines) and scan lines (scanning lines) in order to avoid through holes. In order to arrange the wiring by bypassing the hole, it becomes impossible to provide a pixel driving circuit for driving the pixel electrode at the position where the wiring is formed. In particular, when the resolution is high, the number of wirings to be detoured becomes very large, and the area for forming the pixel driving circuit is further limited accordingly. As a result, display cannot be performed around the through-hole, and therefore the entire display area is reduced.

  In order to avoid such an inconvenience, it is conceivable to provide a margin for the arrangement of the pixel driving circuits by reducing the definition and to secure a space between the pixel driving circuits so that wiring is passed through the space. .

  In addition, by increasing the number of layers for forming the wiring and forming the wiring in different layers so as not to buffer each other, an area for forming the pixel driving circuit is also secured in the vicinity of the through hole, thereby enabling the display. It is also conceivable to provide the pixel electrode in the vicinity of the through hole.

  However, lowering the definition will lower the display quality, and even if the display area expands to the periphery of the through-hole and a large display area is secured, a high-quality feeling cannot be obtained as a product. End up.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an active matrix drive display that ensures a large display area without degrading display quality and without causing a significant increase in manufacturing cost. It is an object of the present invention to provide an apparatus and an active matrix circuit board as a component of the apparatus.

  In order to achieve the above object, an active matrix circuit substrate according to the present invention is provided on a substrate having an avoidance portion provided in a predetermined region, a plurality of pixel electrodes provided on the substrate, and the substrate. A driving circuit for driving the plurality of pixel electrodes; and a plurality of wirings provided on a different layer from the pixel electrode on the substrate. Some wirings are connected to each other through at least one of the plurality of pixel electrodes.

  According to the present invention, in the peripheral portion of the avoidance unit, some of the plurality of wirings are connected via at least one of the plurality of pixel electrodes provided in a layer different from itself. Therefore, the avoidance unit can be bypassed via the pixel electrode. Since the number of wirings that bypass the avoidance part can be reduced by the amount of bypassing through the pixel electrode, the area of the part that bypasses the avoidance part can be reduced as much as possible, and a large display area can be secured accordingly. Is possible. For the “avoidance part”, for example, an area where wiring cannot be physically arranged, such as a through-hole provided in the substrate, or an area where other wiring is provided, causes an electrical short circuit. It includes areas that cannot be used.

In the active matrix circuit board, in the peripheral portion of the avoidance portion, the partial wirings are connected to each other through pixel electrodes provided in the peripheral portion of the avoidance portion among the plurality of pixel electrodes. It is characterized by.
According to the present invention, in the peripheral portion of the avoidance portion, the part of the wirings are connected via the pixel electrodes provided in the peripheral portion of the avoidance portion among the plurality of pixel electrodes, so that the avoidance portion is avoided. The length of the wiring to be performed can be shortened as much as possible.

The active matrix circuit board is characterized in that a pixel electrode provided in a peripheral portion of the avoidance portion among the plurality of pixel electrodes is provided in a shape surrounding the avoidance portion in a plan view.
According to the present invention, since the pixel electrode provided in the peripheral portion of the avoidance portion among the plurality of pixel electrodes is provided in a shape surrounding the avoidance portion in plan view, the length of the wiring that avoids the avoidance portion is reduced. It can be made even shorter.

The active matrix circuit board further includes an annular electrode provided along the avoidance portion in the same layer as the plurality of wirings, and connecting a part of the plurality of wirings to each other. To do.
According to the present invention, since the annular electrode is further provided in the same layer as the plurality of wirings along the avoiding portion and connects a part of the plurality of wirings, the avoiding portion also in the annular electrode. Can be avoided. Thus, the area of the portion of the wiring that bypasses the avoidance portion can be synergistically reduced by the pixel electrode and the annular electrode.

In the active matrix circuit substrate, a part of the wiring connected to the pixel electrode is a wiring for supplying power to the driving circuit.
According to the present invention, since some of the wirings connected to the pixel electrode are wirings for supplying power to the driving circuit, so-called power wirings, a display form similar to that in the case of segment driving can be obtained. In particular, when the pixel electrode is made of metal, the electric resistance value is lowered, which is a preferable mode. In addition, when only one power supply wiring is required for the drive circuit, it is not necessary to straddle the power supply wiring, so that the area of the bypass portion of the avoidance portion can be minimized.

The active matrix circuit board is characterized in that a part of the wiring connected to the pixel electrode is a grounding wiring for the driving circuit.
According to the present invention, since a part of the wiring connected to the pixel electrode is a wiring for grounding the drive circuit, that is, a so-called ground wiring, the ground pattern can be strengthened.

  A display device according to the present invention includes a first substrate and a second substrate that are arranged to face each other and sandwich an electro-optic material layer, a pixel electrode that is provided on a surface of the first substrate facing the second substrate, A display device comprising a counter electrode provided on a surface facing the first substrate of the second substrate, wherein the first substrate is the active matrix circuit substrate.

  According to the present invention, since the active matrix circuit board capable of minimizing the area of the portion that bypasses the avoiding portion of the layer in which the plurality of wirings is formed is mounted, without lowering the display quality, In addition, an active matrix driving display device that can secure a large display area can be obtained without causing a significant increase in manufacturing cost.

In the above display device, the electro-optical material is an electrophoretic dispersion liquid including electrophoretic particles and a liquid phase dispersion medium in which the electrophoretic particles are dispersed.
According to the present invention, since the electrophoretic elements constituting the display device have display retention (memory property), for example, when the display is fixed, the electric field applied to the electrophoretic particles can be eliminated. , The display is held in a state by a previously applied electric field. Therefore, power consumption can be reduced.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a wristwatch 1 including a display device according to the present embodiment.
As shown in the figure, the wristwatch 1 is mainly composed of a watch case 2 and a pair of bands 3 connected to the watch case 2.

  The watch case 2 is made of a metal such as stainless steel or a resin such as a plastic resin. A display panel 5, a second hand 21, a minute hand 22, and an hour hand 23 are provided on the front surface of the watch case 2. On the side surface of the watch case 2, a crown 10 as an operation element and an operation button 11 are provided. The crown 10 is connected to a winding stem (not shown) provided inside the case. The crown 10 is integrated with the winding stem and can be pushed and pulled in multiple stages (for example, two stages) and can be rotated. Yes.

FIG. 2 is a side sectional view of the wristwatch 1.
As shown in the figure, a housing portion 2 </ b> A is provided inside the watch case 2. A movement 4 and a display panel 5 are accommodated in the accommodating portion 2A.

  The movement 4 has a hand movement mechanism (not shown) to which an analog pointer consisting of a second hand 21, a minute hand 22, and an hour hand 23 are connected. This hand movement mechanism rotates the analog hands 21 to 23 to function as a time display unit for displaying a set time.

  The display panel 5 is constituted by, for example, an active matrix driving electrophoretic display panel, and is arranged on the front side of the movement 4. The display panel 5 constitutes a display unit of the wristwatch 1. The display surface of the display panel 5 is circular here. As for the shape of the display surface, in addition to the circular shape, other shapes such as a regular octagonal shape and a dodecagonal shape may be used.

  A through hole 5 </ b> A penetrating the front and back of the display panel 5 is formed at the center of the display panel 5. The shafts of the second wheel 24, second wheel 25, and hour wheel 26 of the hand movement mechanism (not shown) of the movement 4 are inserted into the through hole 5A. The second hand 21, the minute hand 22, and the hour hand 23 described above are attached to the tip of each shaft.

  A transparent cover 7 made of glass or resin is provided on one end side (the front side of the watch) of the housing portion 2A. The transparent cover 7 is press-fitted and fixed to the housing portion 2A via a resin-made or metal press-fit ring 6. A back cover 9 is screwed to the other end side (watch back side) of the accommodating portion 2 </ b> A via a packing 8. The back cover 9 and the transparent cover 7 ensure the sealing performance inside the watch case 2.

FIG. 3 is a cross-sectional view schematically showing the configuration of the display panel 5.
As shown in the figure, the display panel 5 is mainly composed of a first substrate (active matrix circuit substrate) 30, a second substrate 31, and an electrophoretic layer 32.

  The first substrate 30 and the second substrate 31 are opposed to each other so as to sandwich the electrophoretic layer 32. A pixel electrode 35 (see FIG. 8 and the like) is formed on the inner surface of the first substrate 30 (the surface facing the second substrate). A common electrode (counter electrode) 37 made of a transparent conductive material such as ITO is formed on the inner surface of the second substrate 31 (the surface facing the first substrate 30). The outer surface of the second substrate 31 is a display surface on which images such as still images and moving images are displayed. In the center of the first substrate 30 and the second substrate 31, the above-described through hole 5A is formed. The through hole 5 </ b> A is formed so as to penetrate the overlapping region in the plan view of the first substrate 30 and the second substrate 31. A seal portion 51 is provided on the inner surface of the through hole 5A. The seal portion 51 is provided so as to seal a region between the first substrate 30 and the second substrate 31 (region where the electrophoretic layer 32 is provided).

  The electrophoretic layer 32 is mainly composed of a large number of microcapsules 24 as shown in FIGS. 4 (a) and 4 (b). Each microcapsule 24 encloses an electrophoretic dispersion liquid (electro-optical material) 25. The electrophoretic dispersion liquid 25 includes a large number of positively charged black electrophoretic particles (hereinafter referred to as black particles) 26 and a large number of negatively charged white electrophoretic particles (hereinafter referred to as white particles) 27. Each is dispersed in a liquid phase dispersion medium (not shown). The electrophoretic dispersion liquid 25 is not limited to the above two-particle type, and a one-particle type can also be used. In this case, a colored liquid phase dispersion medium may be used. In both the two-particle system and the one-particle system, various colors other than white and black can be adopted as the particle color.

  The operation of the electrophoretic element 28 will be described. As shown in FIG. 4A, when the potential of the common electrode 37 is relatively higher than the potential of the pixel electrode 35, the negatively charged white particles 27 move (migrate) to the common electrode 37 side, and are positive. The black particles 26 charged to move to the pixel electrode 35 side (migrate). As a result, when the common electrode 37 side, which is the display surface side, is viewed, white is recognized in the pixel portion corresponding to the electrophoretic element 28.

  On the other hand, as shown in FIG. 4B, when the potential of the pixel electrode 35 is relatively higher than the potential of the common electrode 37, the positively charged black particles 26 move (migrate) to the common electrode 37 side. The negatively charged white particles 27 move (migrate) to the pixel electrode 35 side. As a result, when the common electrode 37 side is viewed, black is recognized in the pixel portion corresponding to the electrophoretic element 28. In this way, by displaying white or black for each pixel portion, the display panel 5 in which these pixel portions are basically arranged in a matrix can display a pattern consisting of white or black. .

  In the display area of the display panel 5 other than the peripheral portion of the through hole 5A in plan view, the pixel portions 40 are arranged in a matrix in plan view as shown in FIG. As shown in the circuit diagram of FIG. 6, each pixel unit 40 includes a transistor 41 as a switching element, a latch circuit 46 configured by combining four transistors 42, 43, 44, 45, an electrophoretic element 28, and the like. It has. The transistor 41 and the latch circuit 46 constitute the pixel drive circuit 34 described above.

  The transistor 41 is, for example, a field effect type n-channel transistor, and has a gate connected to a scan line (scan line) 47, one source drain (input end) connected to a data line (signal line) 48, and the other Are connected to the input terminal of the latch circuit 46.

  The latch circuit (flip-flop circuit) 46 is configured by combining, for example, two field-effect n-channel transistors 42 and 44 and two field-effect p-channel transistors 43 and 45. The transistors 42 and 43 have one source / drain connected to each other, the other source / drain of the transistor 42 is connected to the low voltage power line 49, and the other source / drain of the transistor 43 is connected to the high voltage power line 50. It is connected to the. Similarly, the transistors 44 and 45 have one source / drain connected to each other, the other source / drain of the transistor 44 is connected to the low voltage power line 49, and the other source / drain of the transistor 45 is connected to the high voltage power supply. Connected to line 50.

  The gates of the transistors 42 and 43 are connected to a connection point N1 between the sources and drains of the transistors 44 and 45. The connection point N1 functions as an input terminal of the latch circuit 46. The input terminal N1 is connected to the other source / drain (output terminal) of the transistor 41. The gates of the transistors 44 and 45 are connected to a connection point N2 between the sources and drains of the transistors 42 and 43. The connection point N2 functions as an output terminal of the latch circuit 46. The output terminal N2 of the latch circuit 46 is connected to the pixel electrode 35, that is, the electrode on one side of the electrophoretic element 28. With such a configuration, the latch circuit 46 has a low potential VSS at the output terminal N2 when the potential applied to the input terminal N1 is high, and the potential applied to the input terminal N1 is low. Sometimes the high potential VEP appears at the output terminal N2.

FIG. 7 is a plan view showing the configuration of the periphery of the through hole 5A in the first substrate 30. FIG. FIG. 8 is a diagram showing a configuration along the AA cross section of FIG.
The pixel drive circuit 34 is a circuit that is provided on the glass substrate 33 and supplies an electrical signal to the pixel electrode 35. The pixel electrodes 35 are provided in an upper layer of the pixel drive circuit 34 and are arranged in a matrix at positions overlapping the pixel drive circuit 34 in plan view. An annular pixel electrode 35c is provided around the through hole 5A so as to surround the through hole 5A. The pixel electrode 35 is made of a conductive material such as ITO or metal.

  The pixel wiring 60 is provided in the same layer as the pixel driving circuit 34, and includes, for example, the above-described scanning line 47 and data line 48 connected to the pixel driving circuit 34 (transistor 41) via a switching element (not shown). It is. The power supply wiring 61 is provided in the same layer as the pixel wiring 60 and is arranged in parallel with the pixel wiring 60. The power supply wiring 61 includes a low voltage power supply line 49 and a high voltage power supply line 50 connected to the latch circuit 46.

  The pixel wiring 60 and the power supply wiring 61 are linearly arranged vertically and horizontally in the display area other than the peripheral portion of the through hole 5A. A portion of the pixel wiring 60 in the vicinity of the through hole 5A is disposed so as to pass through a portion that is designed to pass through the through hole 5A, that is, a portion where the through hole 5A is formed if there is no through hole 5A. Part. This portion is provided with a bypass wiring portion 60a that bypasses the through hole 5A and bypasses the periphery thereof.

  A seal portion 51 that seals the periphery of the through hole 5A is formed around the through hole 5A. The seal portion 51 is an area through which the wiring 60 cannot pass. Therefore, here, the through hole 5A and the seal portion 51 are the avoidance portions. Of the wiring 60, not only the wiring 60 that is arranged at a position passing through the through-hole 5 </ b> A by design but also the wiring 60 that is arranged at a position passing through the sealing section 51 by design, avoiding the sealing portion 51. A bypass wiring portion 60a that bypasses the periphery is provided.

  As shown in FIG. 7, it is necessary to avoid the bypass wiring portion 60a and also to form the bypass wiring portion 60a in the wiring 60 located in the vicinity of the wiring 60 in which the bypass wiring portion 60a is formed. With respect to such wiring 60 as well, a bypass wiring portion 60a is similarly formed in the present embodiment. In the present embodiment, in addition to the through hole 5 </ b> A and the seal portion 51, the bypass wiring 60 a located in the vicinity thereof is also the avoidance portion 52.

  Each power supply wiring 61 is connected to the pixel electrode 35c through, for example, a contact hole in the periphery of the through hole 5A. The power supply wiring 61 bypasses the avoiding portions such as the through hole 5A, the seal portion 51, and the detour wiring portion 60a by the pixel electrode 35c, thereby avoiding these portions. As shown in FIG. 9, the connection position of the pixel electrode 35c and the power supply wiring 61 is arranged in a region along the outer periphery of the pixel electrode 35c (for example, a black dot portion in the figure).

  Thus, according to the present embodiment, in the peripheral portion of the avoidance unit 52, some of the plurality of wires (power supply wires 61) are provided in a layer (upper layer side) different from itself. Since the connection is made via the electrode 35c, the avoidance unit 52 can be bypassed via the pixel electrode 35c. Since the number of wirings that bypass the avoidance unit 52 can be reduced by the amount of bypassing through the pixel electrode 35c, the area of the part that bypasses the avoidance unit 52 can be reduced as much as possible, and a large display area can be provided accordingly. It can be secured.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
In the first embodiment, the display area of the display panel 5 has been described as having a circular shape, but in the present embodiment, the display area has an octagonal shape as shown in FIG. When the display area is octagonal, for example, one of the scanning lines 47 and the data lines 48 may be arranged obliquely (for example, at 45 °) without being orthogonal. In this case, among the pixel wirings (scanning line 47, data line 48) 60, especially the wiring 60 arranged at a position passing through the avoidance part by design, the bypass wiring part 60a that bypasses the periphery avoiding the avoidance part. Is formed.

  Further, as shown in FIG. 7, the pixel electrode 35c is formed around the through hole 5A immediately above the bypass wiring portion 60a. The power supply wiring 61 is connected to the pixel electrode 35c through a contact hole or the like. The connection position between the power supply wiring 61 and the pixel electrode 35c is substantially the same as the position shown in FIG.

In addition to the octagonal shape as described above, even if the display panel 5 has a rectangular shape as shown in FIG. 11A, a heart shape as shown in FIG. Even so, the display area in the vicinity of the avoidance portion such as the through hole 5A can be expanded in the same manner.
11A and 11B, reference numeral 61 denotes a gate driver, and reference numeral 62 denotes a source driver.

  According to such a configuration, the shape of the display area of the display panel 5 is a square shape other than a circle, for example, an octagonal shape, and the wiring 60 passing through the avoidance part such as the through hole 5A in the design is oblique as described above. Even in the case of crossing, the display area in the vicinity of the avoidance part such as the through hole 5A can be expanded in the same manner as in the case of the circular shape. Further, even if the display area has another shape such as a rectangular shape or a heart shape, the display area in the vicinity of the avoidance portion such as the through-hole 5A can be expanded in the same manner as in the case of the circular shape.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. FIG. 12 is a plan view showing the configuration of the display panel 105 according to the present embodiment, and corresponds to FIG. 10 of the second embodiment.
In the present embodiment, an annular electrode 180 is provided so as to surround the through hole 105 </ b> A and the seal portion 151, and the power supply wiring 161 is connected to the annular electrode 180. The annular electrode 180 is formed in a layer different from the power supply wiring 161 and the pixel wiring 160, and is connected to the power supply wiring 161 through a contact hole. The annular electrode 180 is made of a conductive material such as metal. By connecting the power supply wiring 161 to the annular electrode 180, it is possible to bypass the avoiding portion 152 via the annular electrode 180. In the present embodiment, the annular electrode 180 is used as an electrode for grounding. By using the annular electrode 180 as a grounding electrode, a part of the wiring becomes a grounding wiring, that is, a so-called ground wiring, so that the ground pattern can be strengthened.

The technical scope of the present invention is not limited to the above-described embodiment, and appropriate modifications can be made without departing from the spirit of the present invention.
In the above-described embodiment, the entire avoidance portion including the through-hole 5A has been described as being formed in the display area of the display panel 5, but the present invention is not limited to this. For example, only a part of the avoidance unit may be formed in the display area of the display panel 5. Specifically, as shown in FIG. 13A, when the panel shape is a regular octagon and the through hole 5A is formed at the center, half of the through hole 5A is provided with the wiring 60. The display area may be formed so that the other half is located on the non-display area side. Further, as shown in FIG. 13B, the display area is arranged such that 1/4 of the through hole 5A is located on the display area side where the wiring 60 is provided and the rest is located on the non-display area side. May be formed. In FIGS. 13A and 13B, reference numeral 63 denotes a gate driver, and reference numeral 64 denotes a data driver.

  According to such a configuration, the active matrix circuit substrate of the present invention can be made to correspond to the display panel 5 having a relatively small display area. Therefore, application to a display panel that extends the battery life by narrowing the display area and suppressing power consumption is facilitated.

  In the above embodiment, an electrophoretic dispersion liquid is used as an electro-optical material, and display is performed by configuring an electrophoretic element. However, for example, by using a liquid crystal material as an electro-optical material, liquid crystal can be used. The display element may be configured, or the organic EL element may be configured by using an organic EL material.

  Moreover, although the example which applied the display apparatus of this invention to the wristwatch was shown in the said embodiment, of course, it is applicable also to a table clock, a wall clock, a wall clock, a pocket watch, etc. In addition to the timepiece, the present invention can be applied to various instruments having a pointer, and can also be applied to various display devices having an avoiding portion other than a through hole.

The front view of the wristwatch which concerns on the display apparatus of this invention. A side sectional view of a wristwatch. The side sectional view of a display panel. Operation | movement explanatory drawing of an electrophoretic element. The figure which shows display areas other than the peripheral part of the through-hole of a display panel. FIG. 6 is an equivalent circuit diagram of a pixel portion of a display panel. The figure which shows the planar structure of a display panel. The figure which shows the cross-sectional structure of the 1st board | substrate of a display panel. The top view which showed typically the peripheral part of the through-hole. The top view which showed typically the peripheral part of the through-hole. The top view which shows the example of a shape of the display area of a display panel. The top view which showed typically the structure of the display panel which concerns on 3rd Embodiment of this invention. The top view which shows the relationship between a display area and a through-hole.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Wristwatch 5 ... Display panel 5A ... Through-hole 30 ... 1st board | substrate 31 ... 2nd board | substrate 32 ... Electrophoresis layer 33 ... Glass substrate 34 ... Pixel drive circuit 35 ... Pixel electrode 35c ... Pixel electrode 37 ... Common electrode 40 ... Pixel Reference numeral 47 ... Scanning line 48 ... Data line 49 ... Low voltage power supply line 50 ... High voltage power supply line 51 ... Seal part 52 ... Avoidance part 60 ... Pixel wiring 60a ... Detour wiring 61 ... Power supply wiring 180 ... Annular electrode

Claims (8)

A substrate provided with an avoidance portion in a predetermined area;
A plurality of pixel electrodes provided on the substrate;
A driving circuit provided on the substrate and driving the plurality of pixel electrodes;
A plurality of wirings provided on a different layer from the pixel electrode on the substrate;
In the periphery of the avoidance unit, some of the plurality of wirings are connected to each other through at least one of the plurality of pixel electrodes. 2. The peripheral portion of the avoidance portion, wherein the partial wirings are connected to each other via a pixel electrode provided in the peripheral portion of the avoidance portion among the plurality of pixel electrodes. The active matrix circuit board described. The pixel electrode provided in the peripheral part of the said avoidance part among these pixel electrodes is provided in the shape surrounding the said avoidance part by planar view. The claim 1 or Claim 2 characterized by the above-mentioned. Active matrix circuit board. The annular electrode which is provided along the avoidance part in the same layer as the plurality of wirings and connects some of the plurality of wirings to each other is further provided. The active matrix circuit board as described in any one of these. 5. The active matrix circuit substrate according to claim 1, wherein a part of the wiring connected to the pixel electrode is a wiring that supplies power to the driving circuit. 6. 5. The active matrix circuit substrate according to claim 1, wherein a part of the wiring connected to the pixel electrode is a wiring for grounding the drive circuit. 6. A first substrate and a second substrate which are arranged opposite to each other and sandwich the electro-optical material layer;
A pixel electrode provided on a surface of the first substrate facing the second substrate;
A display device comprising: a counter electrode provided on a surface facing the first substrate of the second substrate,
The display device, wherein the first substrate is the active matrix circuit substrate according to any one of claims 1 to 6.   The display device according to claim 7, wherein the electro-optical material is an electrophoretic dispersion liquid including electrophoretic particles and a liquid phase dispersion medium in which the electrophoretic particles are dispersed.

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