JP2005284053A - Electro-optical device and electronic apparatus - Google Patents

Abstract

【Task】
To provide an electro-optical device that can save space, reduce costs, and reduce man-hours, and an electronic apparatus equipped with the electro-optical device.
[Solution]
Since the connector terminals 18 and 19 electrically connected to the liquid crystal panel 2 and the speaker 3 are formed on the connector portion 4c of the flexible substrate 4 as one connection terminal group, the liquid crystal panel 2 and the speaker 3 can be connected to, for example, an external device. It is possible to use only one connector for connecting to a driver or the like. Thereby, it is not necessary to provide a separate connector for the liquid crystal panel 2 and the speaker 3, and space can be saved by the amount of the unnecessary connector, cost can be reduced, and man-hours for connecting the connector can be reduced. It can also be reduced.
[Selection] Figure 1

Description

  The present invention relates to an electro-optical device having a sounding body such as a speaker and an electronic apparatus equipped with the electro-optical device.

An electro-optical device such as a liquid crystal device is used as a display unit of an electronic device such as a mobile phone or a personal computer. In recent years, such electronic devices have various functions, and the number of components required is increased accordingly. For this reason, it is required to efficiently accommodate the necessary components in the housing of the electronic device. For example, a portable communication terminal device has been disclosed that saves space by facing a liquid crystal device and a speaker in close proximity (see, for example, Patent Document 1).
JP 2002-77346 A ([0009] to [0013] FIG. 1)

  However, in the portable communication terminal described above, the lead terminal of the display unit and the lead terminal of the speaker are provided separately, and for example, a connector for connecting to an external drive driver or the like is also provided separately. For this reason, it is necessary to secure a space for housing each connector, and there is a problem that a cost is required for a plurality of connectors, and man-hours are increased because the connectors are connected to each other.

  In view of the circumstances as described above, an object of the present invention is to provide an electro-optical device that can save space, reduce costs, and reduce man-hours, and an electronic apparatus equipped with the electro-optical device.

  In order to achieve the above object, an electro-optical device according to a main aspect of the present invention includes an electro-optical panel having a substrate for holding an electro-optical material, a sounding body provided in the vicinity of the electro-optical panel, and a part. Is joined to the electro-optic panel, and is electrically connected to the sounding body and a first connection terminal that is electrically connected to the electro-optic panel via a joint with the electro-optic panel at the other part. And a first base material on which a connection terminal group for connecting to the outside having a second connection terminal is formed.

  Here, “electrically connected” means that the electro-optical panel and the first connection terminal, and the sounding body and the second connection terminal are electrically connected by, for example, wiring or conductive particles.

  In the present invention, the first and second connection terminals electrically connected to the electro-optical panel and the sounding body are formed as one connection terminal group on the first base material. One connector can be connected from the sounding body to an external drive driver or the like. This eliminates the need for separate connectors for the electro-optic panel and sounding body, which can save space for the unnecessary connectors, reduce costs, and reduce man-hours for connecting the connectors. You can also

  According to an aspect of the present invention, the sounding body includes a terminal portion for electrically connecting to the first base material, the electro-optical panel is rectangular, and the sounding body The terminal portion of the body is disposed so as to overlap a corner portion of the electro-optical panel on the first base material side. By arranging the terminal portion so as to overlap the corner portion on the first base material side, the sounding body is arranged obliquely with respect to the electro-optical panel. Accordingly, by providing wiring and terminals of the sounding body on the side of the first base material connected to the electro-optical panel, for example, the wiring can be easily routed, and the connector of the electro-optical panel and the sounding body is provided. Can be unified.

  According to an embodiment of the present invention, the sounding body is integrally provided in the same case as the electro-optical panel. When the electro-optic panel and sounding body are integrally formed in the same case, the position is adjusted or supported in advance so that the vibration when the sounding body emits sound does not affect the display characteristics of the electro-optic panel. The body can be placed. For example, since it is not necessary to make such adjustments when mounting on an electronic device, the labor and time required for manufacturing can be saved. Furthermore, by forming it integrally, it becomes easy to accommodate in an electronic device etc., for example.

  According to an aspect of the present invention, the first base member is bonded to the sounding body, and the second connection terminal is electrically connected to the sounding body through a joint portion with the sounding body. It is connected. Accordingly, not only the wiring connecting the first connection terminal and the electro-optical panel, but also the wiring connecting the second connection terminal and the sounding body can be formed on the first base material. Since the wiring connected to the optical panel and the sounding body can be collectively formed on the first substrate, the electro-optical device can be easily manufactured.

  According to one aspect of the present invention, it further includes a second base material having one end joined to the sounding body and the other end joined to the first base material, and the second connection terminal includes: The sound generator is electrically connected through the second base material. Thereby, the electro-optical panel bonded to the first base material and the sounding body bonded to the second base material can be formed separately. Also, since the second base material itself can be formed separately from the first base material, for example, when mounted on an electronic device, the shape of the second base material can be freely adjusted according to the arrangement of other components. Can be designed. As a result, for example, when the arrangement of other components differs depending on the electronic device, it is only necessary to deform the second base material, so that it is possible to deal with various electronic devices and reduce manufacturing costs. You can also. In addition, when a defect occurs in the sounding body or the second base material, the replacement can be easily performed, and the electro-optical panel and the sounding body can be inspected separately.

  According to an embodiment of the present invention, the wiring member further includes one end connected to the sounding body and the other end joined to the first base material, and the second connection terminal includes the wiring member. It is electrically connected to the sounding body through a connector. Here, for example, a harness or the like is used as the wiring member. By using such a wiring member, the degree of freedom of wiring can be improved and space can be saved.

  According to an aspect of the present invention, the second connection terminal is formed at an end of the connection terminal group. Accordingly, the second base material and the wiring member can be formed short, and the wiring formed on the second base material and the wiring member can also be formed short. For example, when the sounding body has a terminal portion in which a connection terminal group is formed and the sounding body is disposed obliquely with respect to the electro-optical panel, the terminal portion is disposed at a corner of the electro-optical panel. In this case, it is effective in that the second substrate and the wiring can be formed short by providing the second connection terminal at a position close to the terminal portion.

  According to an aspect of the present invention, the second connection terminal is formed in a central portion of the connection terminal group. Accordingly, the second base material and the wiring member can be formed short, and the wiring formed on the second base material and the wiring member can also be formed short. For example, when the sounding body has a terminal portion in which a connection terminal group is formed and the sounding body is arranged straight with respect to the electro-optic panel, the terminal portion is arranged at the center of one side of the electro-optic panel. Become. Also in this case, it is effective in that the second base material and the wiring can be formed short by providing the second connection terminal at a position close to the terminal portion.

  According to one form of this invention, the said 1st and 2nd base material is a flexible substrate, It is characterized by the above-mentioned. Here, the “flexible substrate” refers to a substrate that has flexibility and can be deformed by an external force. Accordingly, since it can be flexibly deformed according to the arrangement of other components, for example, when it is mounted on an electro-optical device, space saving can be achieved. Further, even when an external force is applied to the first and second base materials or the wiring member, the wiring is not cut by stress, so that the connection reliability can be improved.

  An electronic apparatus according to another aspect of the present invention includes the above-described electro-optical device.

  ADVANTAGE OF THE INVENTION According to this invention, each component can be accommodated efficiently, the electronic device which does not require the effort of manufacture at low cost can be obtained.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings. In the following embodiments, the liquid crystal device 1 with a sounding body will be described as an example of an electro-optical device.

  FIG. 1 is an exploded perspective view of a liquid crystal device 1 with a sounding body according to the present embodiment. FIG. 2 is a plan view when the liquid crystal device 1 with a sounding body is assembled.

  The liquid crystal device 1 with a sounding body includes a liquid crystal panel 2, a sounding body 3, and a flexible substrate 4, and is accommodated in a package 5, for example. An illumination device such as a backlight L and other incidental devices (not shown) are attached as necessary. Here, the liquid crystal device used in the liquid crystal device 1 with the sounding body may be any of a TFT (Thin Film Transistor) active matrix type, a passive matrix type, a TFD (Thin Film Diode) active matrix type liquid crystal device, and the like. In addition, the present invention is not limited to the liquid crystal device, and can be applied to other electro-optical devices such as inorganic or organic electroluminescence devices, plasma display devices, electrophoretic display devices, and devices using electron-emitting devices. . Hereinafter, a TFT active matrix type will be described as an example of the liquid crystal device used for the liquid crystal device 1 with a sounding body.

  The liquid crystal panel 2 has substrates 6 and 7. The substrate 6 and the substrate 7 are plate-like members made of a light-transmitting material such as glass or synthetic resin, for example, and are bonded to each other with the sealant 8 therebetween. A gate electrode in the X direction and a source electrode in the Y direction are formed on the inner (liquid crystal side) surface of the substrate 6, and a pixel electrode is formed for each pixel (not shown). The gate electrode and the source electrode are formed of a transparent conductive material such as ITO (Indium Tin Oxide). Each pixel is provided with a transistor in which each of three terminals is connected to a gate electrode, a source electrode, and a pixel electrode (not shown). Liquid crystal is sealed in the gap between the substrate 6 and the substrate 7. The substrate 6 has a region (hereinafter referred to as “projected portion”) 6 a that projects from the outer peripheral edge of the substrate 7. On the surface of the projecting portion 6a, a terminal group 6b to which wirings routed from the gate electrode and the source electrode are connected is formed.

  The sounding body 3 has a sounding body main body 3a and a terminal portion 3b. A piezoelectric vibrator (not shown) is provided inside the sounding body main body 3a. A terminal group 3c having two terminals electrically connected to the piezoelectric vibrator inside the sounding body main body 3a is formed in the terminal portion 3b.

  The flexible substrate 4 is formed of, for example, a resin such as polyimide, and is bonded to the liquid crystal panel 2 and the sounding body 3 respectively.

  The flexible substrate 4 includes a main body portion 4a joined to the liquid crystal panel 2, a branch portion 4b joined to the sounding body 3, and a connector portion 4c connected to, for example, an external device or a driver. The branch portion 4b is formed so as to bypass the main body portion 4a, and the connector portion 4c is formed so as to protrude from the main body portion 4a, for example, in a convex shape. The main body portion 4a has a joint portion 10, a terminal group 11, wirings 12 and 13, and a driver 14 for driving the liquid crystal panel 2. The branch portion 4b has a joint portion 15, a terminal group 16 and wirings 17, and a connector portion 4c. Has connector terminals 18 and 19 (a group of connector terminals).

  The joint portion 10 is joined to the projecting portion 6 a of the liquid crystal panel 2. A terminal group 11 is formed on the joint surface.

  FIG. 3 is a cross-sectional view showing a state of joining. Each terminal of the terminal group 11 is electrically connected to each terminal of the terminal group 6b through, for example, conductive particles 10b included in a resin 10a of an anisotropic conductive film (ACF: Anisotropic Conductive Film). The wiring 12 connects the terminal group 11 and the driving driver 14. The wiring 13 connects the driving driver 14 and the connector terminal 18. A connection terminal (not shown) is formed in the wiring 12 and the wiring 13 at a portion connected to the driving driver 14. The driving driver 14 is mounted on the flexible substrate 4 via an ACF, for example. The driver 14 is provided with, for example, a bump electrode group on the surface facing the flexible substrate 4, and each bump electrode and the connection terminals of the wirings 12 and 13 are electrically connected through, for example, conductive particles contained in the ACF. Connected.

  On the other hand, the joint portion 15 is joined to the terminal portion 3 b of the sounding body 3. A terminal group 16 is formed on the joint surface. Each terminal of the terminal group 16 is electrically connected to each terminal of the terminal group 3c through, for example, conductive particles included in the ACF, similarly to the joint portion 10. The wiring 17 is formed along the branch portion 4 b and connects each terminal of the terminal group 16 and the connector terminal 19.

  The connector terminals 18 and 19 are arranged in the connector portion 4c at an equal pitch, for example. The liquid crystal panel 2 and the sounding body 3 are connected to external devices, drivers and the like via the connector terminals 18 and 19. By this connector portion 4c, the liquid crystal panel 2 and the sounding body 3 can be collectively connected to the outside.

  The package 5 includes a panel holder 5a, a sound generator holder 5b, and a package housing 5c. The panel holder 5a accommodates the liquid crystal panel 2, the backlight L, and the like, and the sounding body holder 5b houses the sounding body 3. The package housing 5c accommodates the panel holder 5a and the sounding body holder 5b.

  The panel holder 5a has a housing portion 20 for housing the liquid crystal panel 2 and the like, a concave portion 21 for holding the main body portion 4a of the flexible substrate 4, and a convex portion 22 for fixing to the package housing 5c. The sounding body holder 5b has a housing part 23 for housing the sounding body 3, a concave part 24 for holding the branching part 4b of the flexible substrate 4, and a convex part 25 for fixing to the package housing 5c. The package housing 5c is fitted with the window 26 formed so as to correspond to the display part of the liquid crystal panel 2, the hole 27 fitted with the convex part 22 of the panel holder 5a, and the convex part 25 of the sounding body holder 5b. It has a hole 28.

  For example, a support 3d may be interposed between the panel holder 5a and the sounding body 3 in order to reduce vibration when the sounding body 3 emits sound. Similarly, for example, a support 3e having a hole in the center may be installed in the accommodating portion 23 of the sounding body holder 5b. Further, the panel holder 5b may be provided with a sound emitting hole (not shown) so as to communicate with the hole at the center of the support 3e.

  FIG. 4 is a diagram showing an overall configuration of a mobile phone 30 in which the thus configured liquid crystal device 1 with a sounding body is used.

  The mobile phone 30 includes a case body 30a, an operation unit 30b, and a display unit 30c. Operation buttons 30d are arranged on the front surface of the operation unit 30b, and a microphone is built in the transmission unit 30e. The display unit 30c incorporates the liquid crystal device 1 with a sounding body according to the present embodiment.

  FIG. 5 is a diagram illustrating an internal configuration of the display unit 30c.

  Inside the display unit 30c, the liquid crystal device 1 with a sound generator and a circuit board 32 are provided.

  The circuit board 32 is provided with a control driver 33 and a connector 34, and a drive circuit (not shown) for connecting the control driver 33 and the connector 34 is formed. The control driver 33 controls the operation of the sounding body-equipped liquid crystal device 1. The connector 34 is a connection portion with the sounding body-equipped liquid crystal device 1 and includes a connection member 35 and a connector terminal 36. The connecting member 35 can be fixed by inserting the connector portion 4c of the flexible substrate 4, for example. The connector terminals 36 are arranged so as to be connected to the connector terminals 18 and 19 when the connector portion 4c is inserted and fixed to the connection member 35, respectively.

  Next, the manufacturing process of the liquid crystal device with a sounding body 1 and the mobile phone 30 according to the present embodiment will be described.

  First, the liquid crystal panel 2 is manufactured. ITO or the like, which is a material for the gate electrode and the source electrode, is deposited on the substrate 6 by sputtering, for example, and patterned by photolithography. An overcoat layer is formed on the gate electrode and the source electrode, and an alignment film is formed thereon. The alignment film is rubbed. When forming the gate electrode and the source electrode, the terminal group 6b of the protruding portion 6a and the like may be formed at the same time. A common electrode is formed on the substrate 7 by the same method, and an overcoat layer and an alignment film are formed thereon. A gap material is spread on the substrate 7 by dry spraying or the like, and the substrate 6 and the substrate 7 are bonded to each other through the seal material 8. Liquid crystal is injected from the opening of the sealing material 8, and the opening of the sealing material 8 is sealed with a sealing material such as an ultraviolet curable resin. A polarizing plate or the like is attached to each outer surface of the bonded substrate 6 and substrate 7.

  Next, the flexible substrate 4 is manufactured. The shapes of the main body portion 4a, the branch portion 4b, and the connector portion 4c are designed in advance to form a mold. Terminal groups 11 and 16, wirings 12, 13 and 17, and connector terminals 18 and 19 are formed on a flexible substrate 4 formed by a mold, and a driving driver 14 is mounted. Thus, on the flexible substrate 4, wirings and terminals connected to the liquid crystal panel 2 and the sounding body 3 are collectively formed.

  Next, the joint portions 10 and 15 of the flexible substrate 4 are joined to the liquid crystal panel 2 and the sounding body 3, respectively. For the liquid crystal panel 2, for example, ACF is attached so as to cover the terminal group 6b on the overhanging portion 5a. The flexible substrate 4 is disposed on the ACF so that the terminal group 11 is positioned corresponding to the terminal group 6b. The joining part 10 is pressed so as to heat the ACF, and the terminal group 6b and the terminal group 11 are joined so as to have conductivity via, for example, conductive particles in the ACF. Similarly, the sounding body 3 is joined between the terminal group 3c on the terminal portion 3b and the terminal group 16 on the flexible substrate 4 by using, for example, ACF so as to have conductivity. After the flexible substrate 4 is joined to the liquid crystal panel 2 and the sounding body 3, a lighting test of the liquid crystal panel 2 and the sounding body 3 is performed.

  Next, the liquid crystal panel 2 is accommodated in the panel holder 5a, and the sounding body 3 is accommodated in the sounding body holder 5b. The panel holder 5a first accommodates the backlight L, and accommodates the liquid crystal panel 2 and accompanying devices so as to overlap the backlight L. In the housing portion 23 of the sounding body holder 5b, for example, the support 3e is disposed at a position designed in advance, and the sounding body 3 is housed on the support 3e. At this time, the flexible substrate 4 joined to the liquid crystal panel 2 and the sounding body 3 is held in the recesses 21 and 24 of the package, respectively.

  Next, a panel holder 5a in which the liquid crystal panel 2 is accommodated and a sounding body holder 5b in which the sounding body 3 is accommodated are accommodated in the package housing 5c. First, the convex portion 22 of the panel holder 5a is fitted into the hole 27 of the package housing 5c. Next, for example, the support 3d is inserted at a position designed in advance, and the convex portion 25 of the sound generator holder 5b is fitted into the hole 28 of the package housing 5c. In this way, the liquid crystal device 1 with a sounding body is completed.

  Next, the completed sound generator-equipped liquid crystal device 1 is incorporated into the mobile phone 30, and the connector portion 4 c is connected to the connection member 35. Since the positions of the connector terminals 18 and 19 and the connector terminal 36 are aligned in advance, the connection is completed by inserting the connector portion 4c into the connecting member 35 and fixing it.

  According to the present embodiment, the connector terminals 18 and 19 electrically connected to the liquid crystal panel 2 and the sounding body 3 are formed on the connector portion 4c of the flexible substrate 4 as one connection terminal group. 2 and the sounding body 3 can be connected to, for example, an external device or a driver by a single connector. Thereby, it is not necessary to provide separate connectors for the liquid crystal panel 2 and the sounding body 3, and space can be saved by the amount of connectors that are no longer needed, and the cost can be reduced. Can also be reduced.

  Next, a second embodiment according to the present invention will be described. Since the configuration of the flexible substrate is different from that of the first embodiment, this point will be mainly described. Constituent elements common to the constituent elements of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  FIG. 6 is a diagram illustrating a configuration of the liquid crystal device 201 with a sounding body according to the present embodiment. FIG. 7 is a plan view when the liquid crystal device 201 with a sounding body is assembled.

  The sound generator-equipped liquid crystal device 201 includes a liquid crystal panel 2, a sound generator 3, a panel flexible substrate 40, a sound generator flexible substrate 41, and a package 5.

  The panel flexible substrate 40 includes a main body portion 40a joined to the liquid crystal panel 2 and a connector portion 40b connected to, for example, an external device or a driver. The main body portion 40 a includes a joint portion 10, a terminal group 11, wires 12 and 13, a driver 14 for driving the liquid crystal panel 2, a joint portion 42, a terminal group 43, and a wire 44. The connector portion 40b is formed so as to protrude from the main body portion 40a, for example, and has connector terminals 18 and 19.

  The joining portion 42 is a region where the sounding flexible substrate 41 is joined, and a terminal group 43 is formed. The wiring 44 connects each terminal of the terminal group 43 and the connector terminal 19.

  On the other hand, the sound generator flexible substrate 41 is provided with joint portions 45 and 46, terminal groups 47 and 48, and wiring 49, and is formed to bypass the panel flexible substrate 40, for example. The shape of the flexible substrate 41 for the sounding body is designed flexibly according to the position and relationship of other components when accommodated in the mobile phone 30, for example.

  The joint portion 45 is joined to the terminal portion 3 b of the sounding body 3, and the joint portion 46 is joined to the joint portion 42 of the panel flexible substrate 40. The terminal group 47 is formed at the joint 45 and is connected to the terminal group 3c. The terminal group 48 is formed at the joint 46 and is connected to the terminal group 43 formed at the joint 42 of the panel flexible substrate 40. The connection between the terminal group 3c and the terminal group 47 and the connection between the terminal group 43 and the terminal group 48 are performed by, for example, soldering. Of course, it does not matter if it is electrically connected through conductive particles contained in the ACF. The wiring 49 is formed to match the shape of the flexible substrate 41 for the sounding body, and connects the terminal group 47 and the terminal group 48.

  Next, a manufacturing process of the sounding body-equipped liquid crystal device 201 according to this embodiment will be described. Here, the description will focus on the manufacture of the panel flexible substrate 40 and the sound generator flexible substrate 41.

  The shapes of the panel flexible substrate 40 and the sound generator flexible substrate 41 are designed in advance to form a mold. In particular, the shape of the flexible substrate 41 for the sounding body is designed in accordance with the arrangement of other components mounted on an electronic device such as a mobile phone.

  On the panel flexible substrate 40 formed by the mold, the joint portion 10, the terminal group 11, the wirings 12 and 13, the terminal group 43, the wiring 44, and the connector terminals 18 and 19 are formed, and the driving driver 14 is mounted. On the other hand, terminal groups 47 and 48 and wirings 49 are formed on the flexible substrate 41 for the sounding body.

  Next, the joint portion 10 of the panel flexible substrate 40 is joined to the projecting portion 6a of the liquid crystal panel 2 through the ACF, for example, and the terminal group 11 is connected to the terminal group 6b. Similarly, the joint portion 45 of the sounding body flexible substrate 41 is joined to the terminal portion 3b of the sounding body 3, and the terminal group 47 is connected to the terminal group 3c.

  According to the present embodiment, the sound generator flexible substrate 41 itself is also formed separately from the panel flexible substrate 40, so that when it is mounted on the mobile phone 30, the sound generator flexible substrate 41 is matched to the arrangement of other components. The shape of can be designed freely. As a result, for example, when the arrangement of other components differs depending on the electronic device, it is only necessary to deform the sound generator flexible substrate 41, so that it is possible to deal with various electronic devices and reduce costs. You can also. Further, when a defect occurs in the sounding body 3 or the sounding body flexible substrate 41, it can be easily replaced, and the liquid crystal panel 2 and the sounding body 3 can be inspected separately.

  Next, a third embodiment according to the present invention will be described. Since the configuration of the flexible substrate is different from that of the first embodiment, this point will be mainly described. Constituent elements common to the constituent elements of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  FIG. 8 is a diagram illustrating a configuration of the liquid crystal device with sound generator 301 according to the present embodiment. FIG. 9 is a plan view when the liquid crystal device 301 with a sounding body is assembled.

  The liquid crystal device with sound generator 301 includes a liquid crystal panel 2, a sound generator 3, a panel flexible substrate 40, a harness 50, and a package 5.

  The panel flexible substrate 40 includes a main body portion 40a joined to the liquid crystal panel 2 and a connector portion 40b connected to, for example, an external device or a driver. The main body portion 4 a is provided with a joint 10, a terminal group 11, wirings 12 and 13, a driver 14 for the liquid crystal panel 2, a terminal group 43, and wirings 44. The connector portion 40b is formed so as to protrude from the main body portion 40a, for example, and has connector terminals 18 and 19.

  The terminal group 43 is connected to the harness 50. The wiring 44 connects each terminal of the terminal group 43 and the connector terminal 19.

  On the other hand, the connection part 52 is provided in the harness 50. The connection portion 52 is connected to a terminal group 43 formed on the panel flexible substrate 40. The connection between the terminal group 43 and the connection portion 52 is performed by, for example, soldering or the like, but of course, an ACF may be used.

  FIG. 10 is a diagram illustrating an internal configuration of the display unit 30c of the mobile phone 30 in which the sound generator-equipped liquid crystal device 301 according to the present embodiment is mounted.

  Inside the display unit 30c, a liquid crystal device with a sounding body 301 and a circuit board 32 are provided.

  The wiring harness 50 is connected along the panel flexible substrate 40, and the space inside the display unit 30c is effectively utilized.

  Next, a manufacturing process of the liquid crystal device 1 with a sounding body according to the present embodiment will be described. Here, it demonstrates centering on manufacture of the flexible substrate 40 for panels.

  The shape of the panel flexible substrate 40 is designed in advance to form a mold. On the panel flexible substrate 40 formed by the mold, the joint portion 10, the terminal group 11, the wirings 12 and 13, the terminal group 43, the wiring 44, and the connector terminals 18 and 19 are formed, and the driving driver 14 is mounted.

  Next, the joint portion 10 of the panel flexible substrate 40 is joined to the projecting portion 6a of the liquid crystal panel 2 through the ACF, for example, and the terminal group 11 is connected to the terminal group 6b.

  Next, the liquid crystal panel 2 is accommodated in the panel holder 5a, and the sounding body 3 is accommodated in the sounding body holder 5b. About the panel holder 5a, the backlight L is accommodated in the accommodating part 20, and the liquid crystal panel 2 etc. are accommodated on the backlight L so that the panel flexible substrate 40 is hold | maintained at the recessed part 21. FIG. On the other hand, for the sounding body holder 5b, the supporting body 3e is disposed in the housing portion 23, and the sounding body 3 is housed on the supporting body 3e so that the harness 50 is held in the recess 24.

  Next, the connection part 52 of the harness 50 is connected to the terminal group 43 of the panel flexible substrate 40 by, for example, soldering, etc., and the liquid crystal device 1 with a sounding body is completed.

  According to this embodiment, by using such a wiring harness 50, the degree of freedom of wiring can be improved and space saving can be achieved. Further, even when an external force is applied to the harness 50, the wiring is not cut by the stress, so that the connection reliability can be improved.

  Next, a fourth embodiment according to the present invention will be described. Since the arrangement of the sound generators 3 is different from that of the first embodiment, this point will be mainly described. Constituent elements common to the constituent elements of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  FIG. 11 is a plan view of the liquid crystal device with a sounding body 401 according to the present embodiment.

  The sounding body 3 includes a sounding body main body 3a and a terminal portion 3b, and is accommodated in a sounding body holder 5b formed in a rectangular shape, for example. A piezoelectric vibrator (not shown) is provided inside the sounding body main body 3a. The terminal portion 3 b is accommodated in a corner portion of the sounding body holder 5 b and is arranged so that the sounding body 3 is inclined with respect to the liquid crystal panel 2. As a result, as shown in FIG. 12, for example, the terminal portion 3b is disposed at the right corner with respect to the liquid crystal panel 2. However, the terminal portion 3b may be disposed at the left corner. Further, the terminal group 3 c of the terminal portion 3 b is connected to the branch portion 4 b of the flexible substrate 4 through the terminal group 16. The wiring 17 connects the terminal group 3c and the connector terminal 19 of the connector part 4c along the branch part 4b formed so as to bypass the main body part 4a. The connector terminal 19 is disposed, for example, at the right end portion of the connector terminal group so as to correspond to the position (right corner) of the terminal portion 3b.

  For connection to the sounding body 3, for example, as shown in FIG. 12, a panel flexible board 40 having connector terminals 19 and a sounding body flexible board 41 on which wirings 49 are formed may be used. As shown in FIG. 3, the panel flexible board 40 on which the connector terminals 19 are formed and the harness 50 may be used. 12 and 13, the connector terminal 19 is arranged at the right end of the connection terminal group so as to correspond to the position (right corner) of the terminal portion 3b. In addition, the recess 24 is provided at the corner of the sound generator holder 5b so that the sound generator flexible substrate 41 is held (not shown).

  If comprised in this way, the branched part 4b, the flexible substrate 41 for a sounding body, or the harness 50 can be formed short. Accordingly, the wiring 17 on the branch portion 4b and the wiring 49 on the sound generator flexible substrate 41 can be formed short. Thereby, manufacture becomes easy and cost can be reduced. Moreover, since the terminal part 3b is accommodated in the corner | angular part of the speaker holder 5b, the dead space of the corner | angular part of the speaker holder 5b can be utilized effectively. For example, when the terminal portion 3b is accommodated in the corner portion, an empty space is formed in the vertical direction of the accommodating portion 23 of the speaker holder 5b as compared with the case where the terminal portion 3b is accommodated near the center of one side of the speaker holder 5b. The size of the speaker holder 5b can be reduced. Thereby, the whole module including the panel holder 5a and the package 5 can be reduced in size, and efficient accommodation can be achieved. Further, since the sounding body 3 is disposed obliquely with respect to the liquid crystal panel 2, wiring (wiring 17 or wiring) is connected to the end of the flexible substrate (flexible substrate 4 or panel flexible substrate 40) connected to the liquid crystal panel 2. 44) and a terminal group 43 can be provided. Thereby, the connector (connector part 4c or 40b) of the liquid crystal panel 2 and the sounding body 3 can be easily unified.

  Next, a fifth embodiment according to the present invention will be described. Since the configuration of the flexible substrate is different from that of the first embodiment, this point will be mainly described. Constituent elements common to the constituent elements of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  FIG. 14 is a plan view of the liquid crystal device with a sounding body 501 according to the present embodiment.

  The sounding body 3 has a sounding body main body 3a and a terminal portion 3b, and is accommodated in a sounding body holder 5b. A piezoelectric vibrator (not shown) is provided inside the sounding body main body 3a. The terminal portion 3b is accommodated in a substantially central portion of one side surface of the accommodating portion 23. As a result, as shown in FIG. 11, the terminal portion 3b is arranged at a position corresponding to, for example, the vicinity of the central portion of the overhang portion 6a. In addition, the connector terminal 19 is arranged at the central part of the connection terminal group so as to correspond to the position of the terminal part 3b (the central part of the projecting part).

  For connection between the terminal portion 3b and the connector terminal 19, for example, a flexible substrate 41 for a sounding body is used. The sound generator flexible substrate 41 includes a terminal group 47 connected to the terminal portion 3 b, a terminal group 48 connected to the terminal group 43, a terminal group 47, and a wiring 49 connecting the terminal group 48. The sound generator flexible board 41 is not connected so as to bypass the end of the panel flexible board 40, but as shown in FIG. 15, the terminal group 3c of the sound generator 3 and the terminals of the panel flexible board 40 are connected. Connect the group 43 straight.

  If constituted in this way, flexible substrate 41 for sounding bodies can be formed short, and wiring 49 can also be formed short in connection with this. Thereby, cost can be reduced. It should be noted that the harness 50 or the like may be used instead of using the sounding body flexible substrate 41.

  Next, an electronic apparatus according to a sixth embodiment of the present invention will be described.

  FIG. 15 is a schematic configuration diagram showing the overall configuration of the display control system of the electronic apparatus according to the present embodiment.

  The electronic device 300 includes, for example, a liquid crystal panel 2 and a display control circuit 390 as a display control system, and the display control circuit 390 includes a display information output source 391, a display information processing circuit 392, a power supply circuit 393, a timing generator 394, and the like. .

  Further, a driving circuit 361 for driving the display area G is connected to the liquid crystal panel 2.

  The display information output source 391 includes a memory such as a ROM (Read Only Memory) or a RAM (Random Access Memory), a storage unit such as a magnetic recording disk or an optical recording disk, and a tuning circuit that tunes and outputs a digital image signal. It has. Further, the display information output source 391 is configured to supply display information to the display information processing circuit 392 in the form of a predetermined format image signal or the like based on various clock signals generated by the timing generator 394.

  The display information processing circuit 392 includes various well-known circuits such as a serial-parallel conversion circuit, an amplification / inversion circuit, a rotation circuit, a gamma correction circuit, and a clamp circuit, and executes processing of input display information to display the image. Information is supplied to the drive circuit 361 together with the clock signal CLK. The driving circuit 361 includes a scanning line driving circuit, a data line driving circuit, and an inspection circuit. The power supply circuit 393 supplies a predetermined voltage to each component described above.

  Such electronic devices are required to save space, reduce costs, and reduce man-hours. In the liquid crystal device 1 with a sounding body mounted on the electronic device, connector terminals 18 and 19 electrically connected to the liquid crystal panel 2 and the sounding body 3 are connected to the connector portion 4c of the flexible substrate 4 as one connection terminal group. Since it is formed, it is possible to use only one connector for connecting the liquid crystal panel 2 and the sound generator 3 to, for example, an external device or a driver. Thereby, it is not necessary to provide separate connectors for the liquid crystal panel 2 and the sounding body 3, and space can be saved by the amount of connectors that are no longer needed, and the cost can be reduced. Can also be reduced. Therefore, it can be said that the significance of the present invention is great.

  Specific electronic devices include, in addition to the above-described mobile phones, for example, touch panels equipped with personal computers and liquid crystal devices, projectors, liquid crystal televisions, viewfinder type, monitor direct view type video tape recorders, car navigation systems, pagers, word processors. , Workstations, videophones, POS terminals and the like. Needless to say, the liquid crystal device 1 with a sound generator is applicable as a display unit of these various electronic devices.

  The present invention is not limited to the embodiment described above, and various modifications are possible.

  For example, in the above-described embodiment, a COF (Chip On Flexible) type liquid crystal device in which the drive driver is mounted on the flexible substrate has been described as an example. However, the COG in which the drive driver is mounted on the protruding portion of the liquid crystal panel is described. The present invention can be applied even to a (Chip On Glass) type liquid crystal device or the like.

It is a disassembled perspective view which shows the liquid crystal device with a sounding body which concerns on 1st Embodiment of this invention. It is a top view which shows the liquid crystal device with a sounding body which concerns on this embodiment. It is sectional drawing which shows a part of liquid crystal device with a sounding body which concerns on this embodiment. It is a perspective view which shows the structure of the mobile telephone which concerns on this embodiment. It is a perspective view which shows the internal structure of the mobile telephone which concerns on this embodiment. It is a disassembled perspective view of the liquid crystal device with a sounding body according to the second embodiment of the present invention. It is a top view which shows the liquid crystal device with a sounding body which concerns on this embodiment. It is a disassembled perspective view of the liquid crystal device with a sounding body according to the third embodiment of the present invention. It is a top view which shows the liquid crystal device with a sounding body which concerns on this embodiment. It is a perspective view which shows the internal structure of the mobile telephone which concerns on this embodiment. It is a top view which shows the liquid crystal device with a sounding body which concerns on the 4th Embodiment of this invention. It is a top view which shows the modification of the liquid crystal device with a sounding body which concerns on this invention. It is a top view which shows another modification of the liquid crystal device with a sounding body which concerns on this invention. It is a top view which shows the liquid crystal device with a sounding body which concerns on the 5th Embodiment of this invention. It is a block diagram which shows the structure of the electronic device which concerns on the 6th Embodiment of this invention.

Explanation of symbols

  1, 201, 301, 401, 501 ... Liquid crystal device with sound generator 2 ... Liquid crystal panel 3 ... Sound generator 4 ... Flexible substrate 4c ... Connector portion 18, 19 ... Connector terminal 30 ... Mobile phone 30c ... Display unit 34 ... Connector 40 ... Flexible board for panel 40b ... Connector portion 41 ... Flexible board for sounding body 45, 46 ... Junction 47, 48 ... Terminal group 49 ... Wiring 50 ... Harness 300 ... Electronic equipment

Claims (10)

An electro-optic panel having a substrate holding an electro-optic material;
A sounding body provided close to the electro-optic panel,
A part is joined to the electro-optic panel, and the other part is electrically connected to the sounding body and a first connection terminal electrically connected to the electro-optic panel via a joint with the electro-optic panel. An electro-optical device comprising: a first base member on which a connection terminal group for connecting to the outside having a second connection terminal is formed. The sounding body includes a terminal portion for electrically connecting to the first base material,
The electro-optical panel has a rectangular shape, and the sounding body is arranged such that the terminal portion of the sounding body overlaps with a corner of the electro-optical panel on the first base material side. The electro-optical device according to claim 1.   The electro-optical device according to claim 1, wherein the sounding body is integrally provided in the same case as the electro-optical panel. The first substrate is bonded to the sounding body;
The electrical connection according to any one of claims 1 to 3, wherein the second connection terminal is electrically connected to the sounding body via a joint portion with the sounding body. Optical device. A second substrate having one end bonded to the sounding body and the other end bonded to the first substrate;
The electro-optic according to any one of claims 1 to 3, wherein the second connection terminal is electrically connected to the sounding body through the second base material. apparatus. A wiring member having one end connected to the sounding body and the other end joined to the first substrate;
The electro-optical device according to any one of claims 1 to 3, wherein the second connection terminal is electrically connected to the sounding body via the wiring member.   The electro-optical device according to claim 1, wherein the second connection terminal is formed at an end portion of the connection terminal group.   The electro-optical device according to claim 1, wherein the second connection terminal is formed in a central portion of the connection terminal group.   9. The electro-optical device according to claim 1, wherein the first and second base materials are flexible substrates. The electro-optical device according to any one of claims 1 to 9 is mounted,
An electronic apparatus comprising a connector connected to the connection terminal group.

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