JP2010107736A - Electro-optical device and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a wiring board that reduces external dimensions in the mounting area side of a substrate, in an electro-optical device. <P>SOLUTION: The electro-optical device includes a liquid crystal display panel having an element substrate and an opposite substrate for sandwiching a liquid crystal layer. FPC or the like are mounted on a mounting area. One end of the FPC 16 is connected to the element substrate on a surface of a display side and an opposite side of the element substrate, and the FPC is arranged so that a first external side at one end of the FPC is turned to the side reverse to the display area of the liquid crystal display panel. According to this configuration, the FPC is arranged at the backside of the display surface of the liquid crystal display panel without folding back the FPC. Accordingly, an area for folding back the FPC becomes unnecessary. An end side at one end of the FPC connected to the element substrate becomes a configuration that has no effect on the external dimensions of the liquid crystal display panel at all, if the FPC is arranged not to protrude outside of the element substrate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electro-optical device suitable for displaying various information.

  Currently, in an electronic device such as a mobile phone, a portable information terminal, and a computer display, an electro-optical device incorporating a display panel such as a liquid crystal device or an EL (Electro Luminescence) device is widely used to display an image. .

  The liquid crystal device is configured by sandwiching a liquid crystal layer between two substrates. One substrate has a mounting region that projects outward from one end of the other substrate. In this mounting area, a driver IC (Integrated Circuit) for driving liquid crystal, an FPC (Flexible Printed Circuit), a connection terminal for electrically connecting the driver IC and the FPC, and the like are arranged.

  For example, Patent Document 1 discloses a liquid crystal device having this type of configuration.

  The liquid crystal device described in Patent Document 1 includes a liquid crystal panel in which a liquid crystal layer is sandwiched between an element substrate and a counter substrate, and the element substrate is disposed on the display side with respect to the counter substrate. The element substrate has a substrate overhanging portion that projects outward from one end of the counter substrate. One end of the flexible circuit board is connected to the substrate overhanging portion and is bent to the surface opposite to the display surface.

JP 2008-3120 A

  By the way, in a relatively small electronic device such as a mobile phone, since importance is attached to portability and weight reduction, the size of the electronic device itself is limited. On the other hand, from the viewpoint of emphasizing design, there is a need to make the display area as large as possible with respect to the housing of the electronic device. Against this background, for display devices such as liquid crystal devices, it is desirable to make the non-display area, particularly the outer dimensions of the display module as small as possible.

  However, since the flexible circuit board described in Patent Document 1 described above has a bent portion that protrudes outward from the substrate overhanging portion, the outer dimensions on the mounting region side of the substrate are increased accordingly. As the external dimensions are increased in this way, the proportion occupied by the non-display area of the display device in the electronic device increases, and there is a problem that the design of the electronic device is restricted accordingly.

  The present invention has been made in view of the above points, and provides an electro-optical device provided with a wiring board mounting structure capable of reducing the outer dimension on the mounting region side of the substrate, and an electronic apparatus using the same. The task is to do.

  In one aspect of the present invention, an electro-optical device includes an electro-optical panel having a panel substrate whose one surface is a display side, and a wiring substrate connected to the panel substrate, and one end of the wiring substrate is The wiring board is disposed on the surface of the panel substrate opposite to the display side and connected to the panel substrate, and the outer surface at one end of the wiring substrate faces away from the display area of the electro-optic panel. It is characterized by being.

  According to the electro-optical device having the above configuration, the wiring board can be disposed on the back side of the display surface of the electro-optical panel without folding the wiring board. Therefore, an area for folding the wiring board as in a comparative example to be described later becomes unnecessary. If the wiring board is arranged so that the end side at one end of the wiring board connected to the panel board does not protrude outside the panel board, the external dimensions of the electro-optical panel are not affected at all. . Of course, the present invention is sufficiently useful if it protrudes slightly, for example, if it protrudes within a distance required for folding the wiring board.

  In addition, if the wiring board is arranged so that the other edge of the wiring board, for example, the edge opposite to the edge connected to the panel board does not protrude from the outer shape of the electro-optical panel, the electro-optics at the edge is also provided. The configuration has no influence on the external dimensions of the panel.

  One aspect of the electro-optical device is characterized in that at least a part of the wiring board overlaps the display area of the electro-optical panel.

  In the present invention, since the wiring board is disposed on the side opposite to the display side, the wiring board can be disposed so as to overlap the display area. By doing so, a sufficient wiring area and an area for mounting electronic components and the like can be secured on the wiring board.

  As the electro-optical panel, various flat display panels such as a liquid crystal display panel, an organic electroluminescence display panel, and electronic paper using electrophoresis can be applied.

  In another aspect of the electro-optical device, the illumination device is disposed on the opposite side of the electro-optical panel from the display side, and the illumination device is disposed on the opposite side of the display side of the electro-optical panel. The wiring board is disposed between the one end side between the frame body and the mounting region, and is further separated from the electro-optical panel along the inner side surface of the frame body. And further extends to a position facing the surface opposite to the electro-optical panel side in the illumination device.

  According to this, even when an external force such as an impact is applied to an electronic apparatus equipped with this electro-optical device, the portion of the wiring board along the inner side surface of the frame is difficult to move, and the wiring board and the electro-optical panel It is possible to prevent the peeling of the connecting portion with the. As a result, the reliability of connection between the wiring board and the electro-optical panel can be improved.

  In another aspect of the electro-optical device, the electro-optical panel includes the panel substrate and the counter substrate that sandwich the electro-optical layer, and a driver IC that drives the electro-optical layer, and the panel substrate includes The mounting area extends from one end of the counter substrate to the opposite side of the electro-optic layer, and the driver IC is disposed in an area other than the mounting area on the wiring board or the panel substrate. . Thereby, the length of the mounting area can be reduced as compared with the configuration in which the driver IC is arranged in the mounting area, and the length of the non-display area on the mounting area side can be further reduced.

  In another aspect of the electro-optical device, the other end side of the wiring board that is opposite to the one end side is a surface opposite to the display side of the electro-optical panel or the illumination device. It has the some bending part to which the signature was given so that it may oppose. Thereby, it can suppress that the stress which peels both with respect to the connection part of a wiring board and an electro-optical panel acts.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

[Configuration of liquid crystal device]
First, the configuration of a liquid crystal device 100 as an example of an electro-optical device according to an embodiment of the invention will be described with reference to FIGS. 1 to 3A.

  FIG. 1A is a perspective view of the liquid crystal device 100 according to the present embodiment as viewed from the display side. Here, the “display side” refers to a side on which a display image is visually recognized by a viewer. FIG. 1B is a perspective view of the liquid crystal device 100 according to the present embodiment as viewed from the side opposite to the display side. In FIG. 1B, the FPC 16 and the liquid crystal display panel 50 are shown separated from each other so that the connection position between the FPC (Flexible Printed Circuit) 16 as an example of a wiring board and the liquid crystal display panel 50 can be seen. I am going to do it. FIG. 2 is a plan view of the liquid crystal device 100 according to the present embodiment as viewed from the side opposite to the display side. FIG. 3A is a cross-sectional view of a main part of the liquid crystal device 100 taken along a cutting line A-A ′ in FIG.

  The liquid crystal device 100 is a liquid crystal device having a reflective display system, and includes a liquid crystal display panel 50 as an example of an electro-optical panel, a pair of polarizing plates 5 and 6, and an FPC 16.

  The liquid crystal display panel 50 includes an element substrate 1 as a panel substrate on which one of a plurality of surfaces serves as a display side, and a counter substrate 2 bonded together via a frame-shaped sealing material 3, and is partitioned by the sealing material 3. The liquid crystal layer 4 as an example of the electro-optic layer is sandwiched in the region. In the present invention, the liquid crystal display panel 50 is not limited to the following configuration, and may adopt various known configurations.

  The element substrate 1 is arranged on the display side with the counter substrate 2 as a reference. The element substrate 1 has a plate shape and a rectangular planar shape, and has a plurality of outer surfaces. In the following, in the element substrate 1, the outer surface of the mounting region 1h located on the opposite side of the display region V is referred to as a first outer surface 1sa, and the outer surfaces intersecting with the first outer surface 1sa are respectively used. The second outer surface 1sb and the third outer surface 1sc are used, and the outer surface that intersects each of the second outer surface 1sb and the third outer surface 1sc and faces the first outer surface 1sa is the fourth outer surface. This will be described as the outer surface 1sd.

  The element substrate 1 includes a plurality of data lines 11, a plurality of scanning lines 12, a data line driving circuit (first driver IC) 13, a plurality of scanning line driving circuits (second driver IC) 14, and a plurality of external connections. And a mounting region 1h that protrudes from one end 2sa of the counter substrate 2 to the side opposite to the display region V side.

  Each data line 11 extends from the data line driving circuit 13 on the mounting area 1h to the display area V. Each scanning line 12 extends from the scanning line driving circuit 14 on the mounting region 1h toward the fourth outer surface 1sd, and further from the terminal portion to the second outer surface 1sb side or the third outer surface 1sc side. It extends to bend towards the. A pixel region G serving as a minimum unit of display is formed at the intersection of each data line 11 and each scanning line 12. A region where the pixel regions G are arranged in a matrix (a region surrounded by a one-dot chain line) is a display region V.

  The data line driving circuit 13, the scanning line driving circuit 14, and the plurality of external connection terminals 15 are each mounted or formed on the surface 1ha on the counter substrate 2 side in the mounting region 1h. As shown in FIG. 3A, the data line driving circuit 13 includes an input terminal 13a and an output terminal 13b. The output terminal 13b of the data line driving circuit 13 is electrically connected to each data line 11, while the input terminal 13a of the data line driving circuit 13 is electrically connected to each external connection terminal 15. Yes. The scanning line driving circuit 14 has an input terminal and an output terminal (not shown). The output terminal of the scanning line driving circuit 14 is electrically connected to each scanning line 12, while the input terminal of the scanning line driving circuit 14 is electrically connected to each external connection terminal 15. .

  The counter substrate 2 is arranged on the side opposite to the display side with respect to the element substrate 1. The counter substrate 2 includes a plurality of color filter layers disposed in a position overlapping the pixel region G in a plane, a reflective layer disposed on the opposite side of the liquid crystal layer 4 with respect to each color filter layer, and each color filter Although the light shielding layer etc. which are arrange | positioned in the position which divides a layer are provided, in this example, illustration of those components is abbreviate | omitted.

  The polarizing plate 5 is disposed on the side opposite to the liquid crystal layer 4 side with respect to the element substrate 1. On the other hand, the polarizing plate 6 is disposed on the side opposite to the liquid crystal layer 4 side with respect to the counter substrate 2. For example, the transmission axis of the polarizing plate 5 is set to approximately 90 ° with respect to the transmission axis of the polarizing plate 6.

  The FPC 16 projects outward from the main body 16a on which the electronic component 17 is mounted, the first connection portion 16b that projects outward from one end of the main body 16a, and the other end opposite to the one end of the main body 16a. 2nd connection part 16c. Examples of the electronic component 17 include a resistor and a capacitor. In this example, the electronic component 17 is mounted on the surface of the FPC 16 opposite to the liquid crystal display panel 50 side. However, the electronic component 17 may be mounted on the surface of the liquid crystal display panel 50 side. . The first connection portion 16 b is electrically connected to each external connection terminal 15. The second connection portion 16c is electrically connected to an electronic device described later.

  As a result, the data signal corresponding to the display content is sent from the electronic device side to each data line 11 via the FPC 16, each external connection terminal 15 and the data line driving circuit 13, and the FPC 16, each external connection terminal 15 and each A scanning signal is supplied to each scanning line 12 via the scanning line driving circuit 14. At this time, the orientation of the liquid crystal molecules of the liquid crystal layer 4 in the liquid crystal display panel 50 is controlled, and a display image is displayed in the display region V. As a result, a display image is visually recognized by a viewer positioned on the display side.

(Connecting structure of FPC to liquid crystal display panel)
First, with reference to FIG. 3B, the connection structure of the FPC 16x to the liquid crystal display panel 50 according to the comparative example will be described, and then the connection structure of the FPC 16 to the liquid crystal display panel 50 according to the present embodiment will be described. In the description of the comparative example, the same elements as those of the present embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 3B is a cross-sectional view of a principal part showing a connection structure of the FPC 16x to the liquid crystal display panel 50 according to the comparative example corresponding to FIG.

  In the comparative example, unlike the above-described embodiment, the counter substrate 2 is arranged on the display side, and the element substrate 1 is arranged on the side opposite to the display side with respect to the counter substrate 2. The FPC 16x has one end 16xa electrically connected to each connection terminal 15 disposed on the display-side surface 1ha of the mounting region 1h, and further to the liquid crystal layer 4 side from the first outer surface 1sa of the mounting region 1h. The element substrate 1 is folded back to the opposite side to the display side in a state of projecting to the opposite side.

  For this reason, the length of the non-display area NV on the mounting area 1h side is equal to the length d21 from the peripheral edge of the display area V on the mounting area 1h side to the first outer surface 1sa of the element substrate 1, and A length d2 is obtained by adding a length d22 from the first outer surface 1sa to the tip of the folded portion 16xb of the FPC 16x.

  As described above, in the comparative example, the folded portion 16xb projecting outward from the first outer surface 1sa of the element substrate 1 is provided, so that the length of the non-display area NV on the mounting area 1h side of the element substrate 1 is increased accordingly. Will become bigger. For this reason, in the comparative example, when the liquid crystal device is mounted in the electronic device, the proportion occupied by the non-display area NV of the liquid crystal device in the electronic device becomes large, and the design of the electronic device is restricted accordingly. There is a problem such as.

  In this regard, in the present embodiment, one end (one side) 16sa of the FPC 16 is connected to the element substrate 1 on the surface opposite to the display side of the element substrate 1, and the first outer side surface 1sa at the one end 16sa of the FPC 16 is. However, the FPC 16 is arranged so as to face the side opposite to the display region V of the liquid crystal display panel 50.

  According to this configuration, the FPC 16 can be arranged on the back side of the display surface of the liquid crystal display panel 50 without folding the FPC 16. Therefore, an area for folding the FPC 16 as in the above-described comparative example becomes unnecessary. If the FPC 16 is arranged so that the end side 16sa at one end of the FPC 16 connected to the element substrate 1 does not protrude outside the element substrate 1, the configuration does not affect the external dimensions of the liquid crystal display panel 50 at all. It becomes. Of course, the present invention is sufficiently useful if it is slightly protruded, for example, if it protrudes within the distance necessary for turning back the FPC 16.

  Further, if the FPC 16 is arranged so that the other edges 16 sb, 16 sc, 16 sd of the FPC 16, for example, the edge 16 sc facing the edge 16 sa connected to the element substrate 1 do not protrude from the outer shape of the liquid crystal display panel 50. The configuration is such that the external dimensions of the liquid crystal display panel 50 at the edge 16sc are not affected at all.

  In the present embodiment, at least a part of the FPC 16 overlaps the display area V of the liquid crystal display panel 50.

  According to this, since the FPC 16 is disposed on the side opposite to the display side, the FPC 16 can be disposed so as to overlap the display region V. By doing so, a sufficient wiring area and an area for mounting electronic components and the like can be secured on the FPC 16.

  In a preferred example of the present embodiment, the FPC 16 has a display side in the mounting region 1h so that one end 16sa side, that is, the first connection portion 16b side does not protrude from the reference surface S1 to the side opposite to the display region V. Is electrically connected to the respective external connection terminals 15 formed on the surface 1ha opposite to the surface, and further extends from one end 16sa toward the display region V so as to overlap the liquid crystal display panel 50 in a plane. is doing. Here, the reference surface S1 refers to a virtual plane passing through the first outer surface 1sa of the mounting region 1h located on the opposite side to the display region V. In this example, the FPC 16 is arranged so that one end 16sa thereof is located on the same plane as the reference plane S1, but the FPC 16 is not limited to this, and the one end 16sa is displayed more than the reference plane S1. You may arrange | position so that it may be located in the area | region V side.

  According to this configuration, the length of the non-display area NV on the mounting area 1h side is the length d1 (= d21) from the peripheral edge of the display area V on the mounting area 1h side to the first outer surface 1sa of the element substrate 1. ) Therefore, the length of the non-display area NV on the mounting area 1h side can be reduced as compared with the comparative example described above. As a result, as compared with the comparative example, the proportion occupied by the non-display area NV of the liquid crystal device 100 in the electronic device can be reduced, and the design of the electronic device can be prevented from being restricted. Further, according to this configuration, a part of the FPC 16 can be overlapped with the display area V, and thus the mounting area 1h can be reduced accordingly.

  Incidentally, in this embodiment, each of the side surfaces (edge sides) 16sb and 16sd intersecting the one end 16sa of the FPC 16 is on the opposite side of the display area V from the second outer surface 1sb and the third outer surface 1sc. It is arranged at a position that does not protrude.

  In the present embodiment, the FPC 16 is provided with a plurality of creases so that the other end 16sc side, that is, the second connection portion 16c side faces the surface opposite to the display side of the liquid crystal display panel 50. The bent portion 16z. Thereby, it can suppress that the stress which peels both with respect to the connection part of the 1st connection part 16b of FPC16 and each external connection terminal 15 acts.

[Modification]
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. Hereinafter, various modifications will be described.

(Modification 1)
FIG. 4A is a main part sectional view showing a connection structure of the FPC 16 to the liquid crystal display panel 50 according to the modification 1 corresponding to FIG.

  In the liquid crystal device 100a according to the modified example 1, as compared with the above-described embodiment, each of the data line driving circuit 13 and the scanning line driving circuit 14 (not shown) is mainly made of, for example, a COF (Chip On Film) or the like. The difference is that it is mounted on the FPC 16 by using a technique, and the first connecting portion 16b of the FPC 16 is connected to each data line 11 and each scanning line 12, and the other points are the same.

  As a result, in the first modification, the data line driving circuit 13 and the scanning line driving circuit 14 are not arranged on the surface 1ha opposite to the display side of the mounting area 1h. The length can be reduced. Here, the length of the mounting region 1h refers to the length in the extending direction of the imaginary line orthogonal to each of the first outer surface 1sa and the fourth outer surface 1sd of the element substrate 1 in the mounting region 1h. Therefore, in the first modification, the length d4 of the non-display area NV on the mounting area 1h side can be further reduced as compared with the above-described embodiment.

  In the first modification, the data line driving circuit 13, the scanning line driving circuit 14, and the electronic component 17 are arranged on the surface of the FPC 16 on the liquid crystal display panel 50 side. May be arranged on the opposite surface.

(Modification 2)
FIG. 4B is a main part sectional view showing a connection structure of the FPC 16 to the liquid crystal display panel 50 according to the modification 2 corresponding to FIG.

  In the liquid crystal device 100b according to the modified example 2, as compared with the modified example 1, each of the data line driving circuit 13 and the scanning line driving circuit 14 (not shown) is mounted in a mounting area using a technique such as SOG (System On Glass). It is different in that it is mounted on the display side surface of the element substrate 1 except for 1h, and the rest is the same. Thereby, similarly to the modification 1, the length d4 of the non-display area NV on the mounting area 1h side can be further reduced.

(Modification 3)
FIG. 5 is a cross-sectional view of a principal part showing a connection structure of the FPC 16 to the liquid crystal display panel 50 according to the modification 3 corresponding to FIG.

  The liquid crystal device 100c according to the modification 3 mainly further includes an illumination device 51 that illuminates the liquid crystal display panel 50 and a frame body 30 that accommodates the illumination device 51, as compared with the above-described embodiment and the like, and is transmissive. The difference is that the liquid crystal device of the type or transflective type is constructed, and the rest is substantially the same.

  The illumination device 51 is disposed on the opposite side of the counter substrate 2 to the liquid crystal layer 4 side with the polarizing plate 5 interposed therebetween. The illumination device 51 includes a light source 20, a light guide plate 21, a reflection sheet 22, and an optical sheet 23. The light source 20 is disposed at a position facing one end surface of the light guide plate 21. Examples of the light source 20 include a light emitting diode and a cold cathode fluorescent lamp (CCFL). The light guide plate 21 is formed of a translucent material, and guides the light L emitted from the light source 20 toward the liquid crystal display panel 50 as indicated by an arrow in the figure. The reflection sheet 22 is formed of a material that reflects light, and is disposed on the light guide plate 21 on the side opposite to the liquid crystal display panel 50 side. The optical sheet 23 is disposed on the liquid crystal display panel 50 side in the light guide plate 21. The optical sheet 23 includes, for example, a diffusion sheet and a prism sheet.

  The frame 30 has a frame shape, is disposed on the opposite side to the display side of the liquid crystal display panel 50, and accommodates the lighting device 51. The frame 30 includes an inner surface 30a that faces the lighting device 51, an outer surface 30b that is located on the opposite side of the lighting device 51, and an upper surface that intersects the inner surface 30a and the outer surface 30b and faces the mounting region 1h. 30 c and a lower surface 30 d that intersects the inner surface 30 a and the outer surface 30 b of the frame 30 and faces the upper surface 30 c of the frame 30.

  Here, when the thickness of the frame 30 in the extending direction of the imaginary line connecting the inner surface 30a and the outer surface 30b of the frame 30 is d5, the inner surface 30a of the frame 30 is The thickness d5 has a shape that inclines so as to gradually increase from the upper surface 30c toward the lower surface 30d.

  In particular, in the liquid crystal device 100c according to the modification example 3, the FPC 16 has one end 16sa side disposed between the frame body 30 and the mounting region 1h, and further separated from the liquid crystal display panel 50 along the inner side surface 30a of the frame body 30. The lighting device 51 extends to a position facing the surface opposite to the liquid crystal display panel 50 side. In this example, the other end 16sc side of the FPC 16 is joined to a surface opposite to the liquid crystal display panel 50 side in the illumination device 51 via an adhesive element (not shown). In Modification 3, the connection structure of the FPC 16 to the liquid crystal display panel 50 is the same as that in the above-described embodiment.

  According to this configuration, even when an external force such as an impact is applied to the electronic apparatus on which the liquid crystal device 100c is mounted, the portion of the FPC 16 along the inner side surface 30a of the frame body 30 is difficult to move, and the first FPC 16 has a first portion. It can prevent that the connection part of the connection part 16b and each terminal 15 for external connection peels. As a result, the reliability of the connection between the first connection portion 16b of the FPC 16 and each external connection terminal 15 can be improved. Further, since the portion of the FPC 16 along the inner side surface 30a of the frame body 30 becomes difficult to move, it is possible to prevent cracks and the like from being generated from the respective bent portions 16z. As a result, disconnection of the FPC 16 can be prevented.

  In addition, in the above-described embodiment and various modifications, the example in which the liquid crystal display panel 50 is applied as an electro-optical panel has been described. However, the present invention is not limited thereto, and in the present invention, for example, an organic electroluminescence display is used. Various flat display panels such as a panel and electronic paper using electrophoresis can also be applied.

[Electronics]
Next, the liquid crystal device 100 according to the embodiment described above, or any one of the liquid crystal devices 100a, 100b, and 100c according to the various modifications described above (hereinafter, referred to as “liquid crystal device 1000” as a representative). A specific example of an electronic device including the above will be described with reference to FIGS.

  First, an example in which the liquid crystal device 1000 according to the present invention is applied to a display unit of a portable personal computer (so-called notebook personal computer) will be described. FIG. 6A is a perspective view showing the configuration of this personal computer. As shown in the figure, a personal computer 710 includes a main body 712 having a keyboard 711 and a display 713 to which the liquid crystal device 1000 according to the present invention is applied.

  Next, an example in which the liquid crystal device 1000 according to the present invention is applied to a display unit of a mobile phone will be described. FIG. 6B is a perspective view showing the configuration of this mobile phone. As shown in the figure, a cellular phone 720 includes a plurality of operation buttons 721, a reception port 722, a transmission port 723, and a display unit 724 to which the liquid crystal device 1000 according to the present invention is applied.

  Note that examples of the electronic apparatus to which the liquid crystal device 1000 according to the present invention can be applied include a liquid crystal television and a viewfinder type in addition to the personal computer shown in FIG. 6A and the mobile phone shown in FIG. Monitor direct-view video tape recorders, car navigation devices, pagers, electronic notebooks, calculators, word processors, workstations, videophones, POS terminals, digital still cameras, etc.

FIG. 4 is a perspective view of the liquid crystal device according to the present embodiment as viewed from the display side or the side opposite to the display side. The top view which looked at the liquid crystal device which concerns on this embodiment from the opposite side to the display side. Sectional drawing of each principal part which shows the connection structure of FPC which concerns on this embodiment and a comparative example. Sectional drawing of each principal part which shows the connection structure of FPC which concerns on the modifications 1 and 2. FIG. 10 is a cross-sectional view of a main part showing a connection structure of an FPC according to Modification 3. FIG. 14 is a perspective view of an electronic device including the liquid crystal device of the invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Element board | substrate (panel board), 1h Mounting area | region, 1sa 1st outer surface, 1sb 2nd outer surface, 1sc 3rd outer surface, 1sd 4th outer surface, 2 Opposite substrate, 2sa one end, 4 Liquid crystal layer (Electro-optic layer), 13 data line driving circuit (first driver IC), 14 scanning line driving circuit (second driver IC), 15 terminal for external connection, 16 FPC, 16a main body, 16b first connection Part, 16c second connection part, 16sa one end, 16sc other end, 17 electronic component, 30 frame, 30a inner side surface, 50 liquid crystal display panel (electro-optical panel), 51 illumination device, 100 liquid crystal device (electro-optical device) , V display area, NV non-display area, S1 reference plane

Claims (6)

An electro-optical panel having a panel substrate on which one surface is a display side;
A wiring board connected to the panel board,
One end of the wiring substrate is connected to the panel substrate on a surface opposite to the display side of the panel substrate,
The electro-optical device, wherein the wiring substrate is arranged such that an outer surface at one end of the wiring substrate faces a side opposite to a display area of the electro-optical panel.   The electro-optical device according to claim 1, wherein at least a part of the wiring board overlaps with the display area of the electro-optical panel. An illumination device disposed on the opposite side of the display side of the electro-optic panel;
A frame that is disposed on the opposite side to the display side of the electro-optical panel and accommodates the illumination device;
The wiring board has the one end side disposed between the frame body and the mounting region, and further extends in a direction away from the electro-optical panel along an inner side surface of the frame body. The electro-optical device according to claim 1, wherein the electro-optical device extends to a position facing a surface opposite to the electro-optical panel side. The electro-optical panel includes the panel substrate and the counter substrate that sandwich the electro-optical layer, and a driver IC that drives the electro-optical layer,
The panel substrate has the mounting region that projects from one end of the counter substrate to the opposite side of the electro-optic layer,
4. The electro-optical device according to claim 1, wherein the driver IC is disposed in a region other than the mounting region in the wiring substrate or the panel substrate. 5.   The wiring board is provided with a fold so that the other end side opposite to the one end side faces the surface opposite to the display side in the electro-optical panel or the illumination device. The electro-optical device according to claim 1, further comprising a plurality of bent portions.   An electronic apparatus comprising the electro-optical device according to claim 1 as a display unit.

Images