JP2008129510A - Liquid crystal display assembly and display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal display assembly capable of maintaining accurate positioning of a plurality of circuit boards on which driver ICs is mounted and wiring boards distributing signals to the circuit boards without incurring increase of a component cost and to provide a display device. <P>SOLUTION: The liquid crystal display assembly 1a is provided with a display panel 11, the plurality of circuit boards 13 on which the driver ICs 12 driving the display panel 11 is mounted and which are attached to the display panel 11 and first and second wiring boards 16a and 17a distributing signals from an external part to the plurality of circuit boards 13. Terminal parts 161 for receiving the signals from an external part are provided at the first wiring board 16a, extension parts 174a reaching parts in the vicinity of the terminal parts 161 of the first wiring board 16a are provided at the second wiring board 17a and terminal parts 171 for receiving the signals from an external part are provided in positions close to the terminal parts 161 of the first wiring board 16a at the extension parts 174a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a liquid crystal display assembly and a display device, and more specifically, a liquid crystal display assembly in which a predetermined wiring board or circuit board (including a film-like one) is mounted on a liquid crystal display panel, and the liquid crystal The present invention relates to a display device in which a display assembly is incorporated.

  In general, a liquid crystal display device is an assembly in which a predetermined wiring board or circuit board (including a film-like one) is mounted on a liquid crystal display panel (this assembly is referred to as a “liquid crystal display assembly”). ) Is incorporated.

  FIG. 12 is an external perspective view schematically showing a conventional example of the configuration of the liquid crystal display assembly 9. A liquid crystal display assembly 9 shown in FIG. 12 includes a predetermined number of TCP (Tape Carrier Package) 93 and scanning electrodes on which a liquid crystal display panel 91 for displaying an image and a signal electrode driver 92 for driving the liquid crystal display panel 91 are mounted. A predetermined number of TCPs 95 on which the drivers 94 are mounted, and a printed wiring board 96 that distributes predetermined signals to the TCPs 92 on which the signal electrode drivers are mounted. Then, a TCP 93 on which the signal electrode driver 92 is mounted is mounted at a predetermined position on the long side of the liquid crystal display panel 91, and a TCP 95 on which the scanning electrode driver 94 is mounted on a predetermined position on the short side. Further, each TCP 93 on which the signal electrode driver 92 is mounted is connected to the printed wiring board 96.

  The printed wiring board 96 is formed in a substantially rectangular shape so that a plurality of TCPs 93 mounted on the long side of the liquid crystal display panel 91 can be connected. The liquid crystal display panel 91 is arranged so that its longitudinal direction is substantially parallel to the long side of the liquid crystal display panel 91.

  When the liquid crystal display assembly 9 is incorporated in a display device, a control circuit board (not shown) for generating control signals for controlling the signal electrode driver 92 and the scanning electrode driver 94, a printed wiring board 96, and the like. However, the FPC 97 or the like is connected so as to be able to transmit and receive a predetermined signal. The control signal generated by the control circuit board is distributed to the TCP 93 on which the signal electrode driver 92 is mounted through the printed wiring board 96 and also distributed to the TCP 95 in which the scanning electrode driver 94 is mounted through the wiring provided on the display panel 91. Is done. The signal electrode driver 92 and the scan electrode driver 94 mounted on the TCPs 93 and 95 drive the liquid crystal display panel 91 based on the distributed control signal.

  In such a configuration, since the printed wiring board 96 needs to be disposed along substantially the entire length of the long side of the liquid crystal display panel 91, the longitudinal length of the printed wiring board 96 is set to the size of the liquid crystal display panel 91. Dependent. As the liquid crystal display panel 91 increases in size in recent years, it is necessary to increase the length of the printed wiring board 96 in the longitudinal direction.

  By the way, these TCPs 93 are generally thermocompression bonded to the display panel 91 and the printed wiring board 96 with an anisotropic conductive film (not shown) interposed therebetween. Generally, since the printed wiring board 96 is made of a material having a higher linear expansion coefficient than the liquid crystal display panel 91, the amount of deformation due to heating differs when the TCP 93 is heat-bonded. As the length of the printed wiring board 96 in the longitudinal direction increases, the difference in deformation due to heating increases. For this reason, as the size of the liquid crystal display panel 91 increases, it becomes difficult to maintain the positioning accuracy when the TCP 93 is thermocompression bonded.

  As a configuration for maintaining the positioning accuracy between the TCP and the printed wiring board and the display panel, for example, there is a configuration using a printed wiring board made of a material having a low linear expansion coefficient (more precisely, close to the linear expansion coefficient of the display panel). . However, a printed wiring board made of a material having a low coefficient of linear expansion is more expensive than a general printed wiring board, which may increase the price of the liquid crystal display assembly.

  As another configuration, a plurality of printed wiring boards having short longitudinal dimensions are arranged in series along the long side of the liquid crystal display panel, and the printed wiring boards are connected by an FPC (Flexible Printed Circuit) or the like. A configuration may be used (see Patent Document 1). According to such a configuration, since the deformation amount of each printed wiring board can be reduced, it is easy to maintain the positioning accuracy. However, in such a configuration, it is necessary to mount an FPC connector or the like for connecting the printed wiring boards to each printed wiring board. For this reason, there exists a possibility of causing the raise of the component cost of a printed wiring board.

Japanese Patent Laid-Open No. 11-73127

  In view of the above circumstances, the problem to be solved by the present invention is to provide a liquid crystal display assembly and a display device capable of maintaining the positioning accuracy between the TCP and the printed wiring board without increasing the component cost. .

  In order to solve the above-described problems, the present invention first includes mounting a plurality of circuit boards on which a driver IC for driving the display panel is mounted on a display panel for displaying an image, and further, part of each of the plurality of circuit boards. However, the circuit board is connected to each of the plurality of wiring boards that distribute signals to the plurality of circuit boards. At least one of the plurality of wiring boards is provided with a terminal part for receiving a signal from the outside, and the other wiring board is an extension part reaching the vicinity of the terminal part provided on the one wiring board. Is provided. And the terminal part for receiving a signal from the outside is provided in the position close | similar to the terminal part provided in said one wiring board of this extension part.

  The plurality of wiring boards are arranged substantially in series along one side of the display panel, and a terminal portion for receiving a signal from the outside is provided at one end of one of the plurality of wiring boards. The other wiring board disposed on the end side opposite to the one end of the one wiring board includes an extension portion that reaches the vicinity of the end where the terminal portion of the one wiring board is provided. It is good also as a structure by which the terminal part for receiving a signal from the outside is provided in the position close | similar to the said terminal part provided in the said one wiring board of this extension part.

  In addition, the plurality of wiring boards that distribute external signals to the plurality of circuit boards form a plurality of sets, and one of the plurality of wiring boards included in each set receives signals from the outside. A terminal part for receiving is provided, and another wiring board is provided with an extension part that reaches the vicinity of the terminal part provided on the one wiring board, and the extension part receives a signal from the outside. The terminal portion may be provided at a position close to the terminal portion of the one wiring board.

  Each wiring board included in each set is arranged substantially in series along one side of the display panel, and is externally connected to one end of one of the plurality of wiring boards included in each set. A terminal portion for receiving a signal from the other wiring board disposed on the end side opposite to the one end of the one wiring board, the terminal portion of the one wiring board; An extension portion that reaches the vicinity of the end portion provided with the terminal portion is provided, and a terminal portion for receiving a signal from the outside is provided at a position near the terminal portion provided on the one wiring board of the extension portion. It is good.

  And, for example, two sets of the wiring boards are provided, the terminal portions provided on the one wiring board and the other wiring board in one set, and the one wiring board and the other wiring board in the other set It is good also as a structure arrange | positioned substantially mirror-symmetrically so that the said terminal part provided in may adjoin mutually.

  The extending portion provided on the other wiring board may be formed in a shape that does not overlap with the one wiring board. In this case, the circuit board on which the driver IC for driving the display panel is mounted is preferably connected to the same side surface of the one wiring board and the other wiring board.

  Further, the extending portion provided in the other wiring board may be configured such that at least a part thereof overlaps with the one wiring board. In this case, the circuit board on which the driver IC for driving the display panel is mounted may be connected to the same surface of the one wiring board and the other wiring board. The circuit board may be configured to be connected to opposite surfaces of the one wiring board and the other wiring board.

  A display device according to the present invention includes any one of the liquid crystal display assemblies and a control circuit board that generates a control signal for controlling the liquid crystal display assembly. Here, it is preferable that the wiring boards of the liquid crystal display assembly are directly connected to the control circuit board by electrical connection means.

  According to the present invention, it is possible to reduce the length of the portion connecting the circuit boards in both the one wiring board and the other wiring boards. Therefore, since the deformation amount due to heat when the ACF is thermocompression-bonded becomes small, it is easy to maintain positioning accuracy, and it is not necessary to use an expensive material having a low linear expansion coefficient. For this reason, an increase in component costs can be prevented or suppressed. Further, as compared with the configuration in which the wiring boards are connected to each other, the number of terminal portions for connecting the wiring boards can be reduced. Therefore, an increase in component costs can be prevented or suppressed.

  In addition, the terminal portions provided on one set of the one wiring substrate and the other wiring substrate and the terminal portions provided on the other set of the one wiring substrate and the other wiring substrate are close to each other. Thus, if it is set as the structure arrange | positioned substantially mirror-symmetrically, all the terminal parts provided in each wiring board will adjoin. Therefore, connection with an external substrate becomes easy.

  Hereinafter, various embodiments of the present invention will be described in detail with reference to the drawings. The “liquid crystal display assembly” in the present invention means a circuit board (this circuit) on which a liquid crystal display panel and a driver IC (specifically, a signal electrode driver or a scanning electrode driver) for driving the liquid crystal display panel are mounted. The board includes a flexible film-like board) and a wiring board (printed wiring board) for distributing predetermined control signals to the circuit board, and a driver IC is mounted on the liquid crystal display panel. The circuit board or an assembly in which the wiring board is connected to these circuit boards is attached to the circuit board.

  FIG. 1 is an external perspective view schematically showing the configuration of the liquid crystal display assembly 1a according to the first embodiment of the present invention.

  As shown in FIG. 1, a liquid crystal display assembly 1a according to the first embodiment of the present invention includes a plurality of circuit boards 13 (here, flexible) on which a liquid crystal display panel 11 and a signal electrode driver 12 are mounted. A film-like TCP (Tape Carrier Package)), a plurality of circuit boards 15 (here, flexible TCP) on which scan electrode drivers 14 are mounted, and a circuit board 13 on which signal electrode drivers 12 are mounted Two first printed wiring boards 16a and two second printed wiring boards 17a to be connected are provided.

  The liquid crystal display panel 11 has a configuration in which two substrates are arranged to face each other at a predetermined minute interval, and liquid crystal is filled between them. On one of the two substrates, a plurality of pixel electrodes (not shown) and switching elements (not shown, for example, thin film transistors) for driving each of the plurality of pixel electrodes are arranged in a matrix. . Various known active matrix type liquid crystal display panels can be applied to the liquid crystal display panel 11. Therefore, the detailed configuration and operation of the liquid crystal display panel 11 will be omitted.

  The plurality of circuit boards 13 on which the signal electrode drivers 12 are mounted are mounted at predetermined positions on the long sides of the liquid crystal display panel 11. For example, as shown in FIG. 1, the liquid crystal display panel 11 is mounted on the long side at a predetermined interval and at approximately equal intervals. 1 shows a configuration in which eight circuit boards 13 on which the signal electrode drivers 12 are mounted are mounted on one of the long sides of the liquid crystal display panel 11, but the number of circuit boards 13 to be mounted is These are set as appropriate according to the resolution of the liquid crystal display panel 11 and the like, and are not limited to the numbers shown in FIG. Further, the circuit board 13 on which the signal electrode driver 12 is mounted may be mounted on both of the long sides of the liquid crystal display panel 11.

  The plurality of circuit boards 15 on which the scan electrode drivers 14 are mounted are respectively mounted at predetermined positions on the short side of the liquid crystal display panel 11. For example, as shown in FIG. 1, they are mounted at substantially equal intervals with a predetermined interval. FIG. 1 shows a configuration in which four circuit boards 15 on which the scan electrode drivers 14 are mounted are mounted on both short sides of the liquid crystal display panel 11. The display panel 11 is appropriately set according to the resolution and the like, and is not limited to the configuration shown in FIG. In addition to the configuration in which the circuit board 15 is mounted on both the short sides of the liquid crystal display panel 11 as illustrated in FIG. 1, a configuration in which only one of the short sides is mounted may be employed.

  Each circuit board 13 on which the signal electrode driver 12 is mounted and the circuit board 15 on which the scan electrode driver 13 is mounted are mounted on the liquid crystal display panel 11 by using, for example, an anisotropic conductive film (ACF).

  Each signal electrode driver 12 transmits a data signal to the source electrode of the switching element provided in the liquid crystal display panel 11 based on the distributed control signal. Each scan electrode driver 14 transmits a gate pulse to the gate electrode of the switching element based on the distributed control signal. In addition, a conventionally well-known thing can be applied to the signal electrode driver 12, the circuit board 13 on which the signal electrode driver 12 is mounted, the scan electrode driver 14, and the circuit board 15 on which the scan electrode driver 14 is mounted. Therefore, these descriptions are omitted.

  Each first printed wiring board 16a and each second printed wiring board 17a distributes control signals transmitted from the outside to each circuit board 13 on which the signal electrode driver 12 is mounted. Further, a control signal transmitted from the outside is distributed to each circuit board 15 on which the scanning electrode driver 14 is mounted through a predetermined wiring provided on the circuit board 13 on which the signal electrode driver 12 is mounted and the liquid crystal display panel 11. . For this reason, terminal portions for receiving signals from the outside are provided at predetermined positions of the first printed wiring boards 16a and the second printed wiring boards 17a. Specifically, for example, FPC connectors 161 and 171 are mounted at predetermined positions. Note that the specific terminal portion is not limited to the FPC connector. In short, it is only necessary to have a configuration capable of receiving a signal from the outside. Therefore, various known connectors can be applied.

  The first printed wiring board 16a and the second printed wiring board 17a have an elongated and substantially rectangular shape. And the two 1st printed wiring boards 16a have a substantially symmetrical structure mutually. Similarly, the two second printed wiring boards 17a also have a substantially bilaterally symmetric configuration.

  Each of these first printed wiring boards 16a and each second printed wiring board 17a is disposed along the long side on which the circuit board 13 on which the signal electrode driver 12 of the liquid crystal display panel 11 is mounted. Specifically, the two first printed wiring boards 16 a are arranged such that their longitudinal directions are substantially parallel to the long side of the liquid crystal display panel 11 and are adjacent to each other at the approximate center of the long side of the liquid crystal display panel 11. It is arranged. Each of the second printed wiring boards 17 a is outside the two first printed wiring boards 16 a, that is, near both ends of the long side of the liquid crystal display panel 11, and the longitudinal direction thereof is the long side of the liquid crystal display panel 11. They are arranged substantially in parallel.

  As shown in FIG. 1, the two first printed wiring boards 16a and the two second printed wiring boards 17a are formed of a center line L of the liquid crystal display panel 11 (specifically, the length of the liquid crystal display panel 11). (Center in the side direction). In other words, the liquid crystal display assembly 1a according to the first embodiment includes two sets of wiring boards including one first printed wiring board 16a and one second printed wiring board 17a. A set of wiring boards has a configuration in which the center line L of the display panel 11 is substantially centered and arranged in mirror symmetry.

  Thus, the liquid crystal display assembly 1a according to the first embodiment of the present invention includes a plurality of elongated first printed wiring boards 16a and second printed wiring boards 17a (see FIG. 5) along the long side of the liquid crystal display panel 11. The configuration shown in FIG. 1 includes a configuration in which a total of four circuit boards (two first printed wiring boards 16a and two second printed wiring boards 17a) are arranged in series.

  A predetermined number of circuit boards 13 on which the signal electrode drivers 12 are mounted are connected to each first printed wiring board 16a and each second printed wiring board 17a. The liquid crystal display assembly 1a according to the first embodiment of the present invention shown in FIG. 1 has a configuration in which two circuit boards 13 are connected to each first printed wiring board 16a and each second printed wiring board 17a. Is provided. A circuit on which the liquid crystal display panel 11 and the signal electrode driver 12 are mounted is connected to each circuit board 13 on which the signal electrode driver 12 is mounted and each first printed wiring board 16a and each second printed wiring board 17a. An anisotropic conductive film is applied similarly to the connection with the circuit board 15 on which the substrate 13 and the scan electrode driver 14 are mounted.

  The number of circuit boards 13 on which the signal electrode drivers 12 connected to each first printed wiring board 16a and each second printed wiring board 17a are mounted is the number of circuit boards 13 mounted on the liquid crystal display panel 11. It is set according to the number and the like, and is not limited to two.

  FIG. 2 is a perspective view showing a part of the liquid crystal display assembly 1a according to the first embodiment of the present invention. The configuration of one first printed wiring board 16a and the one adjacent to the first printed wiring board 16a are shown. 2 shows a configuration of the second printed wiring board 17a, a connection configuration between the circuit board 13 on which the signal electrode driver 12 is mounted, and a connection configuration between the liquid crystal display panel 11 and the circuit board 13 (in other words, Shows the configuration of a set of wiring boards). The other first printed wiring board 16a and the other second printed wiring board 17a adjacent to the first printed wiring board 16a (that is, the other set of wiring boards) are substantially symmetrical except that they are symmetric. Since it has the same structure, description is abbreviate | omitted.

  As shown in FIG. 2, one end in the longitudinal direction of the first printed wiring board 16a (specifically, in a state where the first printed wiring board 16a is disposed along the long side of the liquid crystal display panel 11) An end portion on the side closer to the center of the liquid crystal display panel 11. In other words, an FPC that transmits a control signal from the outside to the other end portion on the side close to the first printed wiring board 16a). An FPC connector 161 for connecting (Flexible Printed Circuit) is mounted. Conventional FPC connectors 161 can be used. Therefore, explanation is omitted.

  Further, a connection land 162 for connecting the circuit board 13 on which the signal electrode driver 12 is mounted is provided at a predetermined position of the first printed wiring board 16a (actually hidden behind each circuit board 13). Absent). A dummy land 163 having substantially the same configuration as that of the connection land 162 is provided between the connection lands 162 and between the connection lands 162 and the longitudinal edge of the first printed wiring board 16a. That is, the connection land 162 and the dummy land 163 are provided on the one side surface of the first printed wiring board 16a in a straight line over substantially the entire length along the longitudinal direction thereof.

  The first printed wiring board 16a is provided with predetermined wiring (not shown) for electrically connecting each terminal of the FPC connector 161 and the connection land 162. Therefore, the control signal transmitted from the outside through the FPC connected to the FPC connector 161 is mounted by the signal electrode driver 12 connected to each connection land 162 through a predetermined wiring provided on the first printed wiring board 16a. Distributed to the circuit board 13.

  The second printed wiring board 17a has an extending part 174a. The extending portion 174a is provided at one end of the second printed wiring board 17a (specifically, in the state of being disposed along the long side of the liquid crystal display panel 11 together with the first printed wiring board 16a, It further extends in the longitudinal direction from the end on the side close to the printed wiring board 16a. The tip of the extending portion 174a is close to the FPC connector 161 mounted on the first printed wiring board 16a in a state where it is disposed along the long side of the liquid crystal display panel 11 together with the first printed wiring board 16a. Reach the position to be. However, the extending portion 174a of the second printed wiring board 17a is formed in a shape that avoids the first printed wiring board 16a so as not to overlap the first printed wiring board 16a.

  An FPC connector 171 for connecting an FPC that transmits an external control signal is mounted in the vicinity of the distal end of the extending portion 174a of the second printed wiring board 17a. Conventional FPC connectors 171 can be used. Therefore, explanation is omitted.

  Further, a connection land 172 for connecting the circuit board 13 on which the signal electrode driver 12 is mounted is provided at a predetermined position of the second printed wiring board 17a (actually hidden behind the circuit board 13 and cannot be seen. ). A dummy land 173 is provided between the connection lands 172 and between the connection lands 172 and the edge of the second printed wiring board 17a in the longitudinal direction. These dummy lands 173 have substantially the same configuration as the connection lands 172. That is, on one surface of the second printed wiring board 17a, the connection land 172 and the dummy land 173 are linearly provided over substantially the entire length in the longitudinal direction excluding the extending portion 174a.

  When the first printed wiring board 16a and the second printed wiring board 17a having such a configuration are arranged side by side along the long side of the liquid crystal display panel 11, they are mounted on the first printed wiring board 16a. The FPC connector 161 and the FPC connector 171 mounted on the second printed wiring board 17a are located at the approximate center of the long side of the liquid crystal display panel 11 and close to each other.

  Further, the two first printed wiring boards 16 a and the two second printed wiring boards 17 a have a substantially bilaterally symmetric configuration, and are mirror-symmetric with respect to the center line L of the liquid crystal display panel 11. Arranged. Therefore, the FPC connector 161 mounted on the other first printed wiring board 16a and the FPC connector 171 mounted on the other second printed wiring board 17a are also positioned near the center of the long side of the liquid crystal display panel 11. And close to each other.

  Therefore, as a whole, the FPC connector 161 mounted on each of the two first printed wiring boards 16a and the FPC connector 171 mounted on each of the two second printed wiring boards 17a are liquid crystal displays. The panels 11 are located at substantially the center of the long side and are close to each other and arranged in series.

  With such a configuration, the length in the longitudinal direction of the portion connecting the circuit board 13 can be shortened in both the first printed wiring board 16a and the second printed wiring board 17a. Therefore, since the deformation amount due to heat when the ACF is thermocompression-bonded becomes small, it is easy to maintain positioning accuracy, and it is not necessary to use an expensive material having a low linear expansion coefficient. For this reason, an increase in component costs can be prevented or suppressed. Further, the number of terminal portions (that is, the number of FPC connectors 161 and 171 to be mounted) can be reduced as compared with a configuration in which printed wiring boards are connected to each other. Therefore, an increase in component costs can be prevented or suppressed.

  Next, a display device according to the first embodiment of the present invention, that is, a display device including the liquid crystal display assembly 1a according to the first embodiment of the present invention will be described.

  The display device according to the first embodiment of the present invention has a configuration in which the liquid crystal display assembly 1a according to the first embodiment of the present invention and other predetermined members are assembled to a light source device for a display device. First, a light source device for a display device will be described.

  FIG. 3 is an exploded perspective view schematically showing a configuration of a main part of the light source device 5 for a display device applicable to the display device according to the first embodiment of the present invention. For convenience of explanation, the upper side in FIG. 3 is referred to as the “light source device 5 for the display device and the“ front side ”of each member constituting the light source device 5 for the display device, and the lower side is referred to as the“ back side ”.

  The light source device 5 for the display device includes a chassis 51, a reflection sheet 52, a light source 53, optical sheets 55, a side holder 54, a frame 56, a light source driving circuit board 57, and a light source driving circuit board cover. 58. A conventionally well-known structure can be applied to each of these members. Therefore, it will be briefly described below, and detailed description will be omitted.

  The chassis 51 is a tray-like member having a shallow bottom. For example, it is made of a metal plate or the like, and is formed using press working or the like. Various conventionally known light sources can be applied to the light source 53. Specifically, for example, a fluorescent tube such as a hot cathode tube and a cold cathode tube, a discharge tube such as a xenon tube, and a light emitting element such as an LED (light emitting diode) can be applied. 3 shows a configuration in which a fluorescent tube having a linear tube is applied as the light source 53, the present invention is not limited to the configuration shown in FIG. 3, and various light sources can be applied as described above. it can.

  The reflection sheet 52 is a sheet-like member or a plate-like member having a surface property capable of irregularly reflecting light emitted from the light source 53. The reflection sheet 52 is made of, for example, foamed PET (polyethylene terephthalate).

  The optical sheets 55 are a plate-like member or a sheet-like member for adjusting the characteristics of light incident on the liquid crystal display panel 11 of the liquid crystal display assembly 1a according to the first embodiment, or a general term for such a member. Specifically, the optical sheets 55 include a diffusion plate or a diffusion sheet having a function of diffusing the light passing therethrough, a polarization reflection sheet that transmits polarized light in a predetermined direction and reflects polarized light in other directions, and a light collecting function. A lens sheet having In general, these optical sheets 55 are arranged to be stacked in a predetermined order.

  The side holder 54 is a member that functions as a spacer or the like for arranging the optical sheets 55. The side holder 54 is a member formed in a substantially rod shape, and is integrally formed of, for example, a resin material.

  The frame 56 is a member having a function of holding and / or protecting the display panel. The frame 56 has an open substantially quadrilateral frame shape. And the side wall 561 which stands up in the shape of a partition toward the back side is provided in the outer peripheral side of each edge | side. Accordingly, each side of the frame 56 has a substantially “L” -shaped cross-sectional shape. The frame 56 is made of, for example, a metal plate material or the like, and is integrally formed by using a press work or the like, a structure in which parts formed by using the press work or the like are combined, a resin material, or the like. A configuration in which components formed of resin materials or the like are combined can be applied.

  The light source driving circuit board 57 is a circuit board on which an electronic circuit and an electric circuit for driving the light source 53 are constructed. For example, when a fluorescent tube is applied as the light source 53, an inverter circuit that generates a pulse voltage is constructed on the light source driving circuit board 57. The light source drive circuit board cover 58 is a shallow tray-like member or plate-like member that covers the light source drive circuit board 57. The light source drive circuit board cover 58 is made of a conductor such as a metal plate, and is formed by press working or the like.

  The assembly structure of the light source device 5 including such a member is as follows.

  A reflective sheet 52 is disposed on the front side of the chassis 51, and a plurality of light sources 53 are disposed side by side on the front side. A side holder 54 is attached to each short side of the chassis 51 so as to cover the end of each light source 53. On the front surfaces of the side holders 54 and the side walls of the chassis 51, predetermined optical sheets 55 are arranged so as to be stacked in a predetermined order. Specifically, for example, a diffusion plate, a diffusion sheet, a polarization reflection sheet or lens sheet, and a diffusion sheet are arranged in order from the back side. A frame 56 is attached from the front side and fixed to the chassis 51.

  A light source drive circuit board 57 is disposed on the rear side of the chassis 51. A harness drawn from each light source 53 is connected to the light source drive circuit board 57. Further, a light source drive circuit board cover 58 is mounted on the rear side of the chassis 51 so as to cover the light source drive circuit board 57.

  The above is the configuration of the light source device 5 for the display device. Next, a display device according to the first embodiment of the present invention, that is, a display device including the liquid crystal display assembly 1a according to the first embodiment of the present invention and the light source device 5 for the display device will be described. FIG. 4 is an exploded perspective view schematically showing the configuration of the main part of the display device 6a according to the first embodiment of the present invention.

  As shown in FIG. 4, the display device 6a according to the first embodiment of the present invention includes a liquid crystal display assembly 1a according to the first embodiment of the present invention, a light source device 5 for the display device, a bezel 61, Control circuit board 62, control circuit board cover 63, electrical connection means for connecting control circuit board 62 and first printed wiring board 16a (for example, FPC; hereinafter simply referred to as “FPC”) 64 and second Electrical connection means (for example, FPC; hereinafter simply referred to as “FPC”) 65 for connecting to the printed wiring board 17a, and other predetermined members (not shown).

  As the bezel 61, the control circuit board 62, and the control circuit board cover 63, those having a conventional general configuration can be applied. Therefore, it will be briefly described below, and detailed description will be omitted. The configurations of the liquid crystal display assembly 1a and the light source device 5 for the display device according to the first embodiment of the present invention are as described above.

  The bezel 61 is a member having a function of holding and / or protecting the liquid crystal display panel 11. The bezel 61 has an open substantially quadrilateral frame shape. And the side wall 611 which stands up in the shape of a partition toward the back side is provided in the outer peripheral side of each edge | side. Therefore, each side of the bezel 61 has a substantially “L” -shaped cross-sectional shape. The bezel 61 is made of, for example, a metal plate material and is integrally formed by using a press work or the like, a structure in which parts formed by using a press work or the like are combined, or a resin material or the like. Or a configuration in which parts made of a resin material or the like are combined.

  The control circuit board 62 receives control signals for controlling driver ICs (each of the signal electrode driver 12 and the scanning electrode driver 14) mounted on the circuit boards 13 and 15 of the liquid crystal display assembly 1a according to the first embodiment of the present invention. A circuit board on which an electronic circuit and / or an electric circuit to be generated based on an input from the outside (for example, a tuner) is constructed.

  The control circuit board 62 includes two FPC connectors 621 to which FPCs 64 for transmitting generated control signals to the first printed wiring boards 16a of the liquid crystal display assembly 1a according to the embodiment can be connected. Two FPC connectors 622 that can connect the FPC 65 for transmission to the second printed wiring board 17a are mounted.

  The control circuit board cover 63 is a shallow tray-shaped or plate-shaped member that covers the control circuit board 62. The control circuit board cover 63 is made of, for example, a conductor such as a metal plate, and is formed by pressing or the like.

  The assembly structure of the display device 6a according to the first embodiment of the present invention including such a member is as follows.

  On the front side of the frame 56 of the light source device 5, the liquid crystal display panel 11 of the liquid crystal display assembly 1a according to the first embodiment of the present invention is disposed. The first printed wiring board 16 a and the second printed wiring board 17 a are disposed and fixed on the outer peripheral surface of the side wall 561 of the frame 56. Since the circuit board 13 (that is, TCP) on which the signal electrode driver 12 is mounted is flexible, the first printed wiring board 16a and the second printed wiring are bent by raising the circuit board 13 to the back side. The substrate 17 a can be disposed on the outer peripheral surface of the side wall 561 of the frame 56.

  And the bezel 61 is mounted | worn from the front side. Therefore, the liquid crystal display panel 11 is sandwiched between the frame 56 and the bezel 61 of the light source device 5. In addition, the first printed wiring board 16 a and the second printed wiring board 17 a are disposed between the outer peripheral surface of the side wall 561 of the frame 56 and the inner peripheral surface of the side wall 611 of the bezel 61.

  The control circuit board 62 is disposed on the back side of the chassis 51 of the light source device 5. A predetermined one of the FPC connectors 621 and 622 mounted on the control circuit board 62 and the FPC connectors mounted on the first printed wiring board 16a and the second printed wiring board 17a of the liquid crystal display assembly 1a. 161 and 171 are electrically connected directly to each other by FPCs 64 and 65. Therefore, the control signal generated in the control circuit board 62 can be transmitted to each first printed wiring board 16a and each second printed wiring board 17a through the FPCs 64 and 65. Further, a control circuit board cover 63 is mounted on the rear side of the chassis 51 so as to cover the control circuit board 62.

  Next, a liquid crystal display assembly according to a second embodiment of the present invention will be described. FIG. 5 is an external perspective view schematically showing the configuration of the liquid crystal display assembly 1b according to the second embodiment of the present invention.

  As shown in FIG. 5, a liquid crystal display assembly 1b according to the second embodiment of the present invention includes a plurality of circuit boards 13 (here, flexible) on which a liquid crystal display panel 11 and a signal electrode driver 12 are mounted. Film-like TCP), a plurality of circuit boards 15 (here, flexible TCP) on which the scan electrode driver 14 is mounted, and two circuit boards 13 on which the signal electrode driver 12 is mounted. A third printed wiring board 16b and two fourth printed wiring boards 17b are provided.

  The liquid crystal display panel 11, the signal electrode driver 12, the circuit board 13 on which the signal electrode driver 12 is mounted, the scan electrode driver 14 and the circuit board 15 on which the scan electrode driver 14 is mounted are according to the first embodiment of the present invention. The same configuration as that applied to the liquid crystal display assembly 1a can be applied. Accordingly, the same reference numerals are given and description thereof is omitted. The circuit board 13 on which the signal electrode driver 12 is mounted is mounted at a predetermined position on the long side of the liquid crystal display panel 11, and the scanning electrode driver 14 is mounted at a predetermined position on the short side of the liquid crystal display panel 11. The configuration is also the same as that of the liquid crystal display assembly 1a according to the first embodiment of the present invention.

  Each third printed wiring board 16b and each fourth printed wiring board 17b distribute a control signal transmitted from the outside to each circuit board 13 on which the signal electrode driver 12 is mounted. Further, a control signal transmitted from the outside is distributed to each circuit board 15 on which the scanning electrode driver 14 is mounted through a predetermined wiring provided on the circuit board 13 on which the signal electrode driver 12 is mounted and the liquid crystal display panel 11. .

  The third printed wiring board 16b and the fourth printed wiring board 17b have an elongated, substantially rectangular shape. The two third printed wiring boards 16b have a substantially bilateral configuration. Similarly, the two fourth printed wiring boards 17b also have a substantially bilaterally symmetric configuration.

  Each third printed wiring board 16b and each fourth printed wiring board 17b are disposed along the long side on which the circuit board 13 on which the signal electrode driver 12 of the liquid crystal display panel 11 is mounted is mounted. Specifically, the two third printed wiring boards 16 b are arranged such that their longitudinal directions are substantially parallel to the long side of the liquid crystal display panel 11 and are adjacent to each other at the approximate center of the long side of the liquid crystal display panel 11. It is arranged. Each fourth printed wiring board 17b has a longitudinal direction substantially parallel to the long side of the liquid crystal display panel 11 and a region 174b (hereinafter referred to as an extending portion 174b) near the center of the long side of the liquid crystal display panel 11. May be superimposed on the third printed wiring board 16b.

  As shown in FIG. 5, the two third printed wiring boards 16 b and the two fourth printed wiring boards 17 b are formed of a center line L of the liquid crystal display panel 11 (specifically, the length of the liquid crystal display panel 11 is long). (Center in the side direction).

  A predetermined number of circuit boards 13 on which the signal electrode drivers 12 are mounted are connected to each third printed wiring board 16b and each fourth printed wiring board 17b. The liquid crystal display assembly 1b according to the second embodiment of the present invention shown in FIG. 5 has a configuration in which two circuit boards 13 are connected to each third printed wiring board 16b and each fourth printed wiring board 17b. Have For example, an anisotropic conductive film is applied to the connection between each circuit board 13 and each third printed wiring board 16b and each fourth printed wiring board 17b in the same manner as the connection to the liquid crystal display panel 11.

  The number of circuit boards 13 connected to each third printed wiring board 16b and each fourth printed wiring board 17b is set according to the number of circuit boards 13 mounted on the liquid crystal display panel 11. It is a thing and is not limited to two sheets.

  FIG. 6 is a perspective view showing a part of the liquid crystal display assembly 1b according to the second embodiment of the present invention. The configuration of one third printed wiring board 16b and one fourth printed wiring are shown. The structure of the substrate 17b, the connection structure between these and each circuit board 13 on which the signal electrode driver 12 is mounted, and the connection structure between the liquid crystal display panel 11 and the circuit board 13 are shown (in other words, a set of wiring boards). One configuration is shown). The other third printed wiring board 16b and the other fourth printed wiring board 17b (that is, the other set of wiring boards) have substantially the same configuration except that they are bilaterally symmetrical. Description is omitted.

  As shown in FIG. 6, one end of the third printed wiring board 16b in the longitudinal direction (specifically, two third printed wiring boards 16b are arranged along the long side of the liquid crystal display panel 11). In the state, an end portion on the side closer to the center of the liquid crystal display panel 11. In other words, a control signal is transmitted from the outside to the other end portion on the side close to the third printed wiring board 16b). An FPC connector 161 for connecting the FPC to be mounted is mounted. Conventional FPC connectors 161 can be used. Therefore, explanation is omitted.

  Furthermore, a connection land 162 for connecting each circuit board 13 on which the signal electrode driver 12 is mounted and a dummy land 163 are provided at predetermined positions of the third printed wiring board 16b. Further, predetermined wiring (not shown) for electrically connecting the FPC connector 161 and each connection land 162 is provided. The configuration of the connection land 162, the dummy land 163, and the wiring can be the same as that of the first printed wiring board 16a. Therefore, explanation is omitted.

  The fourth printed wiring board 17b has an extending part 174b. The extending portion 174b is connected to one end of the fourth printed wiring board 17b (specifically, in the state of being disposed along the long side of the liquid crystal display panel 11 together with the third printed wiring board 16b). It further extends in the longitudinal direction from the end on the side close to the printed wiring board 16b. And this extension part 174b overlaps with the 3rd printed wiring board 16b. The tip of the extending portion 174b is the center of the long side of the liquid crystal display panel 11 of the third printed wiring board 16b in a state where it is disposed along the long side of the liquid crystal display panel 11 together with the third printed wiring board 16b. Reach the end.

  In other words, the length of the fourth printed wiring board 17b in the longitudinal direction is set to approximately one half of the long side of the liquid crystal display panel 11. A connection land 172 is provided at a predetermined position in a substantially half region near the end of the long side of the liquid crystal display panel 11. In addition, a substantially half region near the center of the long side of the liquid crystal display panel 11 is superimposed on the third printed wiring board 16b.

  The connection lands 162 and 172 and the dummy lands 163 and 173 of the third printed wiring board 16b and the fourth printed wiring board 17b are surfaces on the same side in a state of being disposed along the long side of the liquid crystal display panel 11. Provided. In FIG. 6, the structure provided in the surface which faces each upper side is shown. Specifically, the connection land 162 and the dummy land 163 of the third printed wiring board 16b are provided on the surface opposite to the surface facing the fourth printed wiring board 17b. The connection land 172 and the dummy land 173 of the fourth printed wiring board 17b are provided on the surface on the side overlapping the third printed wiring board 16b.

  According to such a configuration, the circuit board 13 on which the signal electrode driver 12 is mounted can be connected from the same side in both the third printed wiring board 16b and the fourth printed wiring board 17b. Therefore, the work of connecting the circuit board 13 on which the signal electrode driver 12 is mounted to the third printed wiring board 16b and the fourth printed wiring board 17b is facilitated.

  An FPC connector 171 for connecting an FPC 65 that transmits an external control signal is mounted in the vicinity of the tip of the extended portion 174b of the fourth printed wiring board 17b. Specifically, as shown in FIG. 6, the FPC connector 161 mounted on the third printed wiring board 16b is back-to-back on the surface opposite to the surface on which the third printed wiring board 16b is superimposed. It is mounted at the position. Conventional FPC connectors 171 can be used. Therefore, explanation is omitted.

  When the third printed wiring board 16b and the fourth printed wiring board 17b having such a configuration are arranged side by side along the long side of the liquid crystal display panel 11, they are mounted on the third printed wiring board 16b. The FPC connector 161 and the FPC connector 171 mounted on the fourth printed wiring board 17 b are back-to-back at the approximate center of the long side of the liquid crystal display panel 11.

  Further, the two third printed wiring boards 16b and the two fourth printed wiring boards 17b have a substantially symmetric configuration, and are arranged in mirror symmetry with respect to the center line L of the liquid crystal display panel 11. Established. Therefore, the FPC connector 161 mounted on the other third printed wiring board 16 b and the FPC connector 171 mounted on the other fourth printed wiring board 17 b are also back-to-back at the approximate center of the liquid crystal display panel 11. That is, the FPC connectors 161 and 171 mounted on each printed wiring board of each wiring board set are concentrated at the approximate center of the liquid crystal display panel 11.

  The FPC connector 161 mounted on each of the two third printed wiring boards 16b is close to the approximate center of the long side of the liquid crystal display panel 11, and each of the two fourth printed wiring boards 17b. The FPC connector 171 mounted on the liquid crystal display panel 11 is also close at the approximate center of the long side of the liquid crystal display panel 11.

  With such a configuration, the same effects as the liquid crystal display assembly 1a according to the first embodiment can be obtained.

  Next, a display device according to the second embodiment of the present invention, that is, a display device including the liquid crystal display assembly 1b according to the second embodiment of the present invention will be described. The display device according to the second embodiment has substantially the same configuration as the display device 6a according to the first embodiment except for the arrangement structure of the third printed wiring board 16b and the fourth printed wiring board 17b. Have Therefore, the same reference numerals as those of the display device 6a according to the first embodiment are attached to the common components, and description thereof is omitted.

  FIG. 7 is a schematic cross-sectional view showing the liquid crystal display assembly 1b, the frame 56, and the bezel 61 extracted from the display device 6b according to the second embodiment of the present invention. For convenience of explanation, the upper part in FIG. 7 is the display device 6b according to the second embodiment, the light source device 5 incorporated in the display device 6b according to the second embodiment, the display device 6b according to the second embodiment, and the light source device. 5 is referred to as “front side” and the lower side is referred to as “back side”.

  The liquid crystal display panel 11 of the liquid crystal display assembly 1b according to the second embodiment of the present invention is disposed on the front side of the frame 56 of the light source device 5. The third printed wiring board 16 b and the fourth printed wiring board 17 b are disposed and fixed on the outer peripheral surface of the side wall 561 of the frame 56. Specifically, the fourth printed wiring board 17b is disposed on the outer peripheral surface of the side wall 561 of the frame 56, and the third printed wiring board 16b is disposed on the outer side. Therefore, the third printed wiring board 16 b and the fourth printed wiring board 17 b are disposed between the outer peripheral surface of the side wall 561 of the frame 56 and the inner peripheral surface of the side wall 611 of the bezel 61.

  The third printed wiring board 16b and the fourth printed wiring board 17b are integrally coupled in advance with screws or the like, and are arranged on the outer peripheral surface of the side wall 561 of the frame 56 in that state. May be.

  Then, the control circuit board 62 mounted on the rear side of the chassis 51, the third printed wiring board 16b and the fourth printed wiring board 17b are directly electrically connected by the FPCs 64 and 65.

  Since the other configuration is the same as that of the display device 6a according to the first embodiment, the description thereof is omitted.

  Next, a liquid crystal display assembly according to a third embodiment of the present invention will be described. In addition, the liquid crystal display assembly according to the third embodiment of the present invention is compared with the configuration of the liquid crystal display assembly 1b according to the second embodiment. The connection configuration is different, and the others have almost the same configuration. Therefore, the configuration different from the second embodiment will be mainly described. Moreover, the same code | symbol as the liquid crystal display assembly 1b concerning 2nd embodiment is attached | subjected about the part of a common structure, and description is abbreviate | omitted.

  FIG. 8 is an external perspective view schematically showing the configuration of the liquid crystal display assembly 1c according to the third embodiment of the present invention.

  As shown in FIG. 8, a liquid crystal display assembly 1c according to the third embodiment of the present invention includes a plurality of circuit boards 13 (here, flexible) on which a liquid crystal display panel 11 and a signal electrode driver 12 are mounted. Film-like TCP), a plurality of circuit boards 15 (here, flexible TCP) on which the scan electrode driver 14 is mounted, and two circuit boards 13 on which the signal electrode driver 12 is mounted. A fifth printed wiring board 16c and two sixth printed wiring boards 17c are provided.

  The liquid crystal display panel 11, the signal electrode driver 12, the circuit board 13 on which the signal electrode driver 12 is mounted, the scan electrode driver 14 and the circuit board 15 on which the scan electrode driver 14 is mounted are according to the second embodiment of the present invention. The same configuration as that applied to the liquid crystal display assembly 1b can be applied. Therefore, explanation is omitted. The circuit board 13 on which the signal electrode driver 12 is mounted is mounted at a predetermined position on the long side of the liquid crystal display panel 11, and the circuit board 15 on which the scanning electrode driver 14 is mounted is short on the liquid crystal display panel 11. The configuration mounted at a predetermined position on the side is the same as that of the liquid crystal display assembly 1b according to the second embodiment of the present invention.

  The fifth printed wiring board 16c and the sixth printed wiring board 17c have an elongated, substantially rectangular shape. The two fifth printed wiring boards 16c have a substantially bilaterally symmetric configuration. Similarly, the two sixth printed wiring boards 17c also have a substantially bilaterally symmetric configuration.

  Each fifth printed wiring board 16c and each sixth printed wiring board 17c are arranged along the long side on which the circuit board 13 on which the signal electrode driver 12 of the liquid crystal display panel 11 is mounted is mounted. Specifically, the two fifth printed wiring boards 16 c have their longitudinal directions substantially parallel to the long side of the liquid crystal display panel 11 and adjacent to each other at the approximate center of the long side of the liquid crystal display panel 11. It is arranged. Each sixth printed wiring board 17c has a longitudinal direction substantially parallel to the long side of the liquid crystal display panel 11 and a region 174c (hereinafter referred to as an extending portion 174c) near the center of the long side of the liquid crystal display panel 11. May be superimposed on the fifth printed wiring board 16c.

  As shown in FIG. 8, two fifth printed wiring boards 16c and two sixth printed wiring boards 17c are formed of a center line L of the liquid crystal display panel 11 (specifically, the long side of the liquid crystal display panel). (Center of direction) is arranged mirror-symmetrically.

  A predetermined number of circuit boards 13 on which the signal electrode drivers 12 are mounted are connected to each fifth printed wiring board 16c and each sixth printed wiring board 17c. The liquid crystal display assembly 1c according to the third embodiment of the present invention shown in FIG. 8 has a configuration in which two circuit boards 13 are connected to each fifth printed wiring board 16c and each sixth printed wiring board 17c. Have Similar to the connection with the liquid crystal display panel 11, for example, an anisotropic conductive film is applied to the connection between each circuit board 13 and each fifth printed wiring board 16c and each sixth printed wiring board 17c.

  The number of circuit boards 13 connected to each fifth printed wiring board 16c and each sixth printed wiring board 17c is set according to the number of circuit boards 13 mounted on the liquid crystal display panel 11. It is a thing and is not limited to two sheets.

  FIG. 9 is a perspective view showing a part of the liquid crystal display assembly 1c according to the third embodiment of the present invention. The configuration of one fifth printed wiring board 16c and the sixth printed wiring The structure of the substrate 17c, the connection structure between these and each circuit board 13 on which the signal electrode driver 12 is mounted, and the connection structure between the liquid crystal display panel 11 and the circuit board 13 are shown (in other words, one of the wiring boards). Shows the composition of the set). The fifth printed wiring board 16c is turned upside down in the direction of arrow A in order to show the connection state between the fifth printed wiring board 16c and each circuit board 13 on which the signal electrode driver 12 is mounted. Indicates. A state in which the fifth printed wiring board 16c is superimposed on the sixth printed wiring board 17c is indicated by a broken line.

  The other fifth printed wiring board 16c and the other sixth printed wiring board 17c (that is, the other set of wiring boards) have substantially the same configuration except that they are bilaterally symmetrical. Description is omitted.

  As shown in FIG. 9, one end of the fifth printed wiring board 16c in the longitudinal direction (specifically, two fifth printed wiring boards 16c are disposed along the long side of the liquid crystal display panel 11). In the state, the end portion on the side closer to the center of the liquid crystal display panel 11. In other words, the control signal is transmitted from the outside to the other end portion on the side close to the fifth printed wiring board 16c). An FPC connector 161 for connecting the FPC 64 to be connected is mounted.

  A connection land for connecting each circuit board 13 on which the signal electrode driver 12 is mounted to a predetermined position on the surface of the fifth printed wiring board 16c facing the sixth printed wiring board 17c. 162 and a dummy land 163 are provided. Further, predetermined wiring (not shown) for electrically connecting the FPC connector 161 and each connection land 162 is provided. The configurations of the connection land 162, the dummy land 163, and the wiring can be the same as those of the third printed wiring board 16b, except that the provided surfaces are different. Therefore, explanation is omitted.

  The sixth printed wiring board 17c has an extending part 174c. The extended portion 174c is connected to one end of the sixth printed wiring board 17c (specifically, in the state of being disposed along the long side of the liquid crystal display panel 11 together with the fifth printed wiring board 16c) It further extends in the longitudinal direction from the end on the side close to the printed wiring board 16c. And this extension part 174c overlaps with the 5th printed wiring board 16c. The tip of the extending portion 174c is the center of the long side of the liquid crystal display panel 11 of the fifth printed wiring board 16c in a state where it is disposed along the long side of the liquid crystal display panel 11 together with the fifth printed wiring board 16c. Reach the end.

  In other words, the length of the sixth printed wiring board 17c in the longitudinal direction is set to approximately one half of the long side of the liquid crystal display panel 11. A connection land 172 is provided at a predetermined position in a substantially half region near the end of the long side of the liquid crystal display panel 11 on the surface facing the fifth printed wiring board 16c. In addition, a substantially half region near the center of the long side of the liquid crystal display panel 11 is superimposed on the fifth printed wiring board 16c.

  An FPC connector 171 for connecting an FPC 65 that transmits an external control signal is mounted in the vicinity of the tip of the extending portion 174c of the sixth printed wiring board 17c. Specifically, as shown in FIG. 9, the FPC connector 161 mounted on the fifth printed wiring board 16c is back-to-back with the surface opposite to the surface overlapping the fifth printed wiring board 16c. It is mounted at the position. Conventional FPC connectors 171 can be used. Therefore, explanation is omitted.

  When the fifth printed wiring board 16c and the sixth printed wiring board 17c having such a configuration are arranged along the long side of the liquid crystal display panel 11, the signal electrodes of the fifth printed wiring board 16c are arranged. The surface on which the circuit board 13 on which the driver 12 is mounted is mounted and the surface on which the circuit board 13 on which the signal electrode driver 12 is mounted of the sixth printed wiring board 17c face each other. Further, the FPC connector 161 mounted on the fifth printed wiring board 16 c and the FPC connector 171 mounted on the sixth printed wiring board 17 c are located back to back at the approximate center of the long side of the liquid crystal display panel 11. .

  Furthermore, the two fifth printed wiring boards 16c and the two sixth printed wiring boards 17c have a substantially bilaterally symmetric configuration, and are arranged mirror-symmetrically with respect to the center line L of the liquid crystal display panel 11. Established. For this reason, the FPC connector 161 mounted on the other fifth printed wiring board 16c and the FPC connector 171 mounted on the other sixth printed wiring board 17c are also positioned back to back at the approximate center of the liquid crystal display panel 11. To do.

  Therefore, the FPC connector 161 mounted on each of the two fifth printed wiring boards 16c and the FPC connector 171 mounted on each of the six sixth printed wiring boards 17c are the length of the liquid crystal display panel 11. Concentrate on the approximate center of the side.

  With such a configuration, the same operational effects as the liquid crystal display assembly 1a according to the first embodiment or the liquid crystal display assembly 1b according to the second embodiment can be obtained.

  Next, a display device according to the third embodiment of the present invention, that is, a display device including the liquid crystal display assembly 1c according to the third embodiment of the present invention will be described. Note that the display device according to the third embodiment differs from the display device according to the second embodiment in the state of the circuit board on which the signal electrode driver is mainly mounted, and has substantially the same configuration other than that. Therefore, the parts having the same configuration are denoted by the same reference numerals as those of the display device according to the second embodiment, and the description thereof is omitted.

  FIG. 10 is a schematic cross-sectional view showing the liquid crystal display assembly 1c, the frame 56, and the bezel 61 according to the third embodiment extracted from the display device 6c according to the third embodiment of the present invention. For convenience of explanation, the upper side in FIG. 10 is a display device 6c according to the third embodiment, a light source device 5 incorporated in the display device 6c according to the third embodiment, a display device 6c according to the third embodiment, and a light source. The members constituting the device 5 are referred to as “front side”, and the lower part is referred to as “back side”.

  The members having the same configuration as the display device 6b according to the second embodiment can be applied to the members excluding the liquid crystal display assembly 1c according to the third embodiment. Therefore, explanation is omitted.

  On the front side of the frame 56 of the light source device 5, the liquid crystal display panel 11 of the liquid crystal display assembly 1c according to the third embodiment of the present invention is disposed. The fifth printed wiring board 16 c and the sixth printed wiring board 17 c are disposed and fixed on the outer peripheral surface of the side wall 561 of the frame 56. Specifically, the fifth printed wiring board 16c is disposed on the outer peripheral surface of the side wall 561 of the frame 56, and the sixth printed wiring board 17c is disposed on the outer side. As described above, the fifth printed wiring board 16 c and the sixth printed wiring board 17 c are disposed between the outer peripheral surface of the side wall 561 of the frame 56 and the inner peripheral surface of the side wall 611 of the bezel 61.

  When the circuit board 13 on which the signal electrode driver 12 is mounted is connected to the surfaces of the fifth printed wiring board 16c and the sixth printed wiring board 17c facing each other, The circuit board 13 connected to the wiring board 16c and the circuit board 13 connected to the sixth printed wiring board 17c can have the same size. Therefore, it is not necessary to increase the types of circuit boards 13 on which the signal electrode driver 12 is mounted.

  The fifth printed wiring board 16c and the sixth printed wiring board 17c are integrally coupled in advance with screws or the like, and are arranged on the outer peripheral surface of the side wall 561 of the frame 56 in this state. May be.

  Then, the control circuit board 62 mounted on the rear side of the chassis 51, the fifth printed wiring board 16c and the sixth printed wiring board 17c are directly electrically connected by the FPCs 64 and 65.

  Next, any one of the display device according to the first embodiment of the present invention to the display device according to the third embodiment (hereinafter, referred to as “display device according to the embodiment of the present invention” and denoted by reference numeral “6”). A television receiver including the above will be described. FIG. 11 is an exploded perspective view schematically showing a configuration of a main part of the television receiver 7 to which the display device 6 according to the embodiment of the present invention is applied. The television receiver 7 includes a display device 6 according to an embodiment of the present invention, a tuner 71, a loudspeaker 72, a power source 73, cabinets 741 and 742, and a support member 75.

  A conventionally well-known general thing can be applied to each member except the display apparatus 6 concerning embodiment of this invention. Therefore, it will be briefly described below, and detailed description will be omitted.

  The tuner 71 is a circuit board on which a circuit for generating a video signal and an audio signal of a predetermined channel is constructed based on a received radio wave or an externally input signal. As the tuner 71, any one or a plurality of conventional general terrestrial (analog terrestrial and / or digital terrestrial) tuners, BS tuners, and CS tuners are applied. As the loudspeaker 72, a conventional general loudspeaker such as a general speaker can be applied. The power source 73 supplies power to the display device 6, the tuner 71, the loudspeaker 72, and the like according to the embodiment of the present invention.

  As shown in FIG. 11, the display device 6, the tuner 71, and the loudspeaker 72 according to the embodiment of the present invention are housed in cabinets 741 and 742 and supported by a support member 75. The television receiver 7 shown in FIG. 11 includes a front side cabinet 741 and a back side cabinet 742, in which the display device 6, the tuner 71, and the loudspeaker 72 according to the embodiment of the present invention are housed. It has a configuration. The display device according to the embodiment of the present invention may be configured such that a tuner, a power source, a loudspeaker, and the like are assembled.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to the embodiments, and various modifications can be made without departing from the spirit of the present invention. Needless to say.

  For example, in the above-described embodiment, a configuration having a total of four printed wiring boards is shown, but the number of printed wiring boards is not limited. As the size of the liquid crystal display panel is increased, a configuration including six or more printed wiring boards may be employed.

It is the external appearance perspective view which showed typically the structure of the liquid crystal display assembly concerning 1st embodiment of this invention. It is the enlarged view which extracted and showed the 1st printed wiring board and the circuit board in which a 2nd printed wiring board and a signal electrode driver are mounted from the liquid crystal display assembly concerning 1st embodiment of this invention. It is the disassembled perspective view which showed typically the structure of the principal part of the light source device applicable to a display apparatus provided with the liquid crystal display assembly concerning 1st embodiment of this invention. It is the disassembled perspective view which showed typically the structure of the principal part of the liquid crystal display assembly concerning 1st embodiment of this invention, and the display apparatus provided with the said light source device. It is the external appearance perspective view which showed typically the structure of the liquid crystal display assembly concerning 2nd embodiment of this invention. It is the enlarged view which extracted and showed the 3rd printed wiring board and the circuit board in which a 4th printed wiring board and a signal electrode driver are mounted from the liquid crystal display assembly concerning 2nd embodiment of this invention. It is the cross-sectional schematic diagram which extracted and showed this liquid crystal display assembly, the flame | frame, and the bezel from the display apparatus with which the liquid crystal display assembly concerning 2nd embodiment of this invention is applied. It is the external appearance perspective view which showed typically the structure of the liquid crystal display assembly concerning 3rd embodiment of this invention. It is the enlarged view which extracted and showed the 5th printed wiring board and the circuit board in which a 6th printed wiring board and a signal electrode driver are mounted from the liquid crystal display assembly concerning 3rd embodiment of this invention. It is the cross-sectional schematic diagram which extracted and showed this liquid crystal display assembly, the flame | frame, and the bezel from the display apparatus with which the liquid crystal display assembly concerning 3rd embodiment of this invention is applied. It is the disassembled perspective view which showed typically the structure of the principal part of the television receiver with which the display apparatus concerning embodiment of this invention is applied. It is the external appearance perspective view which showed the conventional example of the structure of the liquid crystal display assembly typically.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a Liquid crystal display assembly 11 Liquid crystal display panel 12 Signal electrode driver 13 Circuit board in which a signal electrode driver is mounted 14 Scan electrode driver 15 Circuit board in which a scan electrode driver is mounted 16a First printed wiring board 161 FPC connector 162 Connection land 163 Dummy land 17a Second printed wiring board 171 FPC connector 172 Connection land 173 Dummy land 174a Extension portion 5 Light source device 51 Chassis 52 Reflective sheet 53 Light source 54 Side holder 55 Optical sheets 56 Frame 561 Side wall 57 Light source drive circuit board 58 Light source Drive circuit board cover 6 Display device 61 Bezel 611 Side wall 62 Control circuit board 621 FPC connector 622 FPC connector 63 Control circuit board cover 64 FPC
65 FPC
7 Television receiver 71 Tuner 72 Loudspeaker 73 Power supply 741, 742 Cabinet 75 Support member

Claims (13)

  A display panel for displaying an image; a plurality of circuit boards mounted with a driver IC for driving the display panel; and a plurality of wiring boards for distributing external signals to the plurality of circuit boards; And at least one of the plurality of wiring boards is provided with a terminal portion for receiving a signal from the outside, and at least another wiring board is provided with a terminal portion provided on the one wiring board. And a terminal part for receiving a signal from the outside is provided at a position close to the terminal part of the one wiring board. Display assembly.   A display panel for displaying an image; a plurality of circuit boards mounted with a driver IC for driving the display panel; and a plurality of wiring boards for distributing external signals to the plurality of circuit boards; The plurality of wiring boards are arranged in series along one side of the display panel, and one end of one of the plurality of wiring boards is for receiving a signal from the outside The terminal part of the one wiring board is provided on the other wiring board provided on the end side opposite to the side on which the terminal part of the one wiring board is provided. An extension part that reaches the end of the extension part is provided, and a terminal part for receiving a signal from the outside is provided at a position near the terminal part provided on the one wiring board of the extension part. Featured liquid crystal display assembly   A display panel for displaying an image; a plurality of circuit boards mounted with a driver IC for driving the display panel; and a plurality of wiring boards for distributing external signals to the plurality of circuit boards; The plurality of wiring boards form a plurality of sets, one of the plurality of wiring boards included in one set is provided with a terminal portion for receiving a signal from the outside, The other wiring board included in one set is provided with an extending part that reaches the vicinity of the terminal part provided on the one wiring board, and the extending part has a terminal part for receiving a signal from the outside. A liquid crystal display assembly, wherein the liquid crystal display assembly is provided at a position close to the terminal portion of the one wiring board.   A display panel for displaying an image; a plurality of circuit boards mounted with a driver IC for driving the display panel; and a plurality of wiring boards for distributing external signals to the plurality of circuit boards; The plurality of wiring boards form a plurality of sets, and the plurality of wiring boards included in one set are arranged in series along one side of the display panel, and are included in the set. A terminal part for receiving a signal from the outside is provided at one end of one of the wiring boards, and is disposed on the end part side of the one wiring board opposite to the side on which the terminal part is provided. The other wiring board is provided with an extending portion that reaches an end of the one wiring board on the side where the terminal portion is provided, and close to the terminal portion provided on the one wiring board of the extending portion. To receive signals from outside The liquid crystal display assembly, characterized in that the terminal portion of the order is provided.   Two sets of the wiring boards are provided, the terminal portions provided on the one wiring board and the other wiring board in one set, and the one wiring board and the other wiring board provided in the other set. 5. The liquid crystal display assembly according to claim 1, wherein the liquid crystal display assembly is disposed substantially mirror-symmetrically so as to be close to each other.   6. The liquid crystal display assembly according to claim 1, wherein an extension portion provided on the other wiring board does not overlap the one wiring board. 7.   The liquid crystal display assembly according to claim 1, wherein the circuit board is connected to a surface on the same side of the one wiring board and the other wiring board.   6. The liquid crystal display assembly according to claim 1, wherein an extension portion provided in the other wiring board overlaps with the one wiring board. 7.   The terminal portion provided on the one wiring substrate and the terminal portion provided on the extension portion of the pair of wiring substrates are opposite to each other of the extension portion of the one wiring substrate and the pair of wiring substrates. The liquid crystal display assembly according to claim 8, wherein the liquid crystal display assembly is provided substantially back-to-back with each other on a surface opposite to the surface to be mounted.   11. The liquid crystal display assembly according to claim 8, wherein the circuit board is connected to a surface on the same side of the one wiring board and the other wiring board.   11. The liquid crystal display assembly according to claim 8, wherein the circuit board is connected to surfaces of the one wiring board and the other wiring board facing each other.   12. A display device comprising: the liquid crystal display assembly according to claim 1; and a control circuit board that generates a control signal for controlling the liquid crystal display assembly.   13. The display device according to claim 12, wherein each wiring board provided in the liquid crystal display assembly is directly connected to the control circuit board by electrical connection means.

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