JP4433898B2 - Liquid crystal display - Google Patents

Description

  The present invention relates to a liquid crystal display device, and more specifically, a front frame provided with an opening for exposing a display area of a liquid crystal panel on a front surface, an inner frame on which the liquid crystal panel is placed, and a rear housing a lamp unit. The present invention relates to an improvement of a liquid crystal display device including a frame.

  Generally, a liquid crystal display device used for a monitor such as a personal computer or a television receiver is attached to the monitor body using an attachment member such as a screw. When the casing of the liquid crystal display device is made of a conductive metal, there is a problem in that when the casing is attached to the monitor body, a conductive foreign matter is generated to cause a problem.

  FIG. 14 is an exploded perspective view showing a schematic configuration of a conventional liquid crystal display device, which includes a front frame 101 provided with an opening 101a for exposing a display area of the liquid crystal panel 102 on the front surface, and a TFT (Thin Film Transistor) array. A horizontally long liquid crystal module 100 having a liquid crystal panel 102 composed of a substrate and a CF (color filter) substrate and a backlight 103 that illuminates the liquid crystal panel 102 from the back side is shown.

  The front frame 101 includes a front plate provided with an opening 101a, four side plates each provided with an engagement hole 101b for engaging with the claw 103b and a through hole 101c penetrating the mounting member. The engagement holes 101b are provided at opposing positions on both side plates on the long side of the front frame 101. The through holes 101 c are provided at opposing positions on both side plates on the short side of the front frame 101.

  The liquid crystal panel 102 is provided with a gate driver IC 105 and a gate substrate 106 for driving a plurality of gate lines, and a source driver IC 108 and a source substrate 109 for driving a plurality of source lines (data lines). The gate driver IC 105 is provided on the short side of a TFT (Thin Film Transistor) array substrate, and is formed as a drive circuit made of a semiconductor chip on a TCP (Tape Carrier Package) 104 that connects the gate substrate 106 and the TFT array substrate. Yes. The source driver IC 108 is provided on the long side of the TFT array substrate, and is formed as a drive circuit made of a semiconductor chip on a TCP (Tape Carrier Package) 107 that connects the source substrate 109 and the TFT array substrate. Each of the gate substrate 106 and the source substrate 109 is a printed circuit board (Printed Wiring Board: PWB), and a controller circuit for controlling a plurality of driver ICs is formed. Further, each of the TCPs 104 and 107 is connected to a terminal portion provided at an end portion of the TFT array substrate.

  The backlight 103 is provided with a lamp unit, an opening through which light from the lamp unit passes, an inner frame on which the liquid crystal panel 102 is placed, and a rear frame that houses the lamp unit and the inner frame is fitted inside. Become. The rear frame includes a back plate and four side plates each having a claw 103b and a through hole 103c. The inner frame is made of resin (mold), and the front frame 101 and the rear frame are made of metal such as aluminum.

  With the liquid crystal panel 102 placed on the inner frame of the backlight 103, when the front frame 101 is put on the rear frame and the engagement holes 101b of the front frame 101 are engaged with the claws 103b of the backlight 103, respectively, The liquid crystal module 100 is completed. In the completed state of the liquid crystal module 100, the gate substrate 106 and the source substrate 109 are respectively turned to the back side of the rear frame, and the gate driver IC 105 and the source driver IC 108 are arranged to face the side surfaces adjacent to the backlight 103. When the liquid crystal module 100 is attached to the monitor body, a side mount screw is attached to the attachment hole 103c of the backlight 103 through the through hole 101c as an attachment member.

  FIG. 15 is a plan view showing a main part of the liquid crystal display device of FIG. 14, and shows a state in which the backlight 103 is viewed from the front side. FIG. 16 is a cross-sectional view showing the details of the main part of the liquid crystal display device cut along the line AA in FIG. 15, and a rear frame 112 formed with a through hole 112b protruding forward and penetrating the side mount screw. The appearance of the side protrusions is shown. FIG. 17 is a cross-sectional view showing details of the main part of the liquid crystal display device cut along the line BB in FIG. 15, and a rear frame recessed inward corresponding to the position of the terminal portion of the TFT array substrate. The state of the recess 112a on the side surface 112 is shown.

  The inner frame 111 has an opening 111a through which light from the lamp unit passes. An engagement hole 111b for engaging the side mount screw is provided on the side surface of the inner frame 111. The lamp unit includes a linear light source, an optical sheet 121 such as a diffusion sheet or a lens sheet, a light guide plate 122 made of acrylic resin, and a reflection sheet 123. When the rear frame 112 is covered with the front frame 101 and the side mounting screws are attached to the engagement holes 111b of the inner frame 111 through the through holes of the front frame 101 and the rear frame 112, the rear frame 112 faces the recess 112a. Thus, the gate driver IC 105 is arranged.

  When the liquid crystal module 100 is attached to the monitor body, due to variations in attachment accuracy, the axis of the side mount screw is displaced from the central axis of the through holes 101c and 112b, and the tip of the screw comes into contact with the inner wall surface of the through hole. May end up. In such a case, a part of the front frame 101 or the rear frame 112 is scraped off to form a conductive metal piece (foreign matter). The foreign matter generated in this manner moves through the gaps between the frames and causes various problems. In particular, there is a problem that foreign matter generated between the rear frame 112 and the inner frame 111 or between the front frame 101 and the rear frame 112 moves to the terminal portion side of the TFT array substrate, causing a short circuit.

  FIG. 18 is a cross-sectional view showing the details of the main part of the liquid crystal display device of FIG. 14 and shows the state of the periphery of the terminal portion provided at the end of the TFT array substrate of the liquid crystal panel 102. A pattern exposed portion 104a through which the wiring pattern is exposed is provided at the end portion of the TCP 104, and the tip portion thereof and the terminal portion of the TFT array substrate are adhesive members made of ACF (Anisotropic Conductive Film). Bonded by 131. The tip of the terminal portion is chamfered, and a recess is formed between the chamfered portion 102a and the pattern exposed portion 104a.

When the conductive foreign matter generated when the liquid crystal module 100 is attached is caught in the concave portion, there is a problem that a short circuit occurs between the terminals in the terminal portion or between the wiring patterns in the TCP 104, causing display failure or failure. In addition, when the foreign matter has entered the display area of the liquid crystal panel 102, there is a problem that the foreign matter becomes a display foreign matter.
JP 2003-121816 A JP 2002-108235 A JP-A-5-107529

  As described above, in the conventional liquid crystal display device, when the housing of the device is made of a conductive metal, there is a problem in that when the housing is attached to the monitor body or the like, a conductive foreign matter is generated, causing a problem such as a short circuit. It was. In addition, there is a problem that when a foreign object moves between frames and enters the display area of the liquid crystal panel, it becomes a display foreign object.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a liquid crystal display device in which defects due to conductive foreign substances are suppressed and yield is improved. In particular, an object of the present invention is to provide a liquid crystal display device in which a short circuit is prevented from occurring around a terminal portion provided at an end portion of an array substrate when being attached to a monitor body or the like. It is another object of the present invention to provide a liquid crystal display device in which foreign matters are prevented from entering the display area of the liquid crystal panel and becoming display foreign matters.

  The liquid crystal display device according to the present invention has a front frame provided with an opening for exposing the display area of the liquid crystal panel on the front surface and a through frame provided with a through hole for penetrating the mounting member on the side surface, and an opening for allowing light from the lamp unit to pass therethrough. An inner frame on which the liquid crystal panel is placed; and a rear frame that houses the lamp unit and into which the inner frame is fitted. A terminal portion for connecting the drive circuit is provided, an engagement hole for engaging the mounting member is provided on a side surface of the inner frame, and a position of the terminal portion is provided on a side surface of the rear frame. A recess recessed inward and a protrusion projecting forward and having a through-hole penetrating the mounting member are provided on the rear frame. When the mounting member is attached to the engagement hole of the inner frame through the through hole of the front frame and the rear frame, the drive circuit is disposed facing the recess, The inner frame is configured to have blocking means for blocking the movement of foreign matter around the engaging hole on the side surface.

  According to such a configuration, since the blocking means for preventing the movement of foreign matter is provided around the engagement hole of the inner frame to which the mounting member is mounted, when the mounting member is mounted, the periphery of the mounting member between the inner frame and the rear frame is provided. It is possible to prevent the foreign matter generated in the movement. Therefore, when the housing of the liquid crystal display device is made of a conductive metal, it is possible to prevent the conductive foreign matter generated when the housing is attached to the monitor body or the like from moving inside the housing and causing problems. it can.

  In addition to the above-described configuration, the liquid crystal display device according to the present invention is configured such that the blocking means protrudes laterally so as to surround the protruding portion of the rear frame. According to such a configuration, it is possible to prevent foreign matter from moving forward or sideward along the side surface of the rear frame, so that it is possible to effectively prevent a short circuit from occurring around the terminal portion at the end of the array substrate. Can be suppressed. In addition, since the foreign matter generated between the inner frame and the rear frame is prevented from moving forward, the foreign matter can be prevented from entering the display area of the liquid crystal panel.

  In addition to the above-described configuration, the liquid crystal display device according to the present invention is configured to have a filling member that fills a gap around the mounting member between the front frame and the rear frame. According to such a configuration, it is possible to prevent the movement of the foreign matter generated around the attachment member between the front frame and the rear frame, and thus it is possible to effectively suppress the occurrence of problems such as a short circuit.

  In addition to the above configuration, the liquid crystal display device according to the present invention is configured such that the inner frame has a protruding portion that protrudes laterally at a position corresponding to the concave portion on the front side of the side surface. According to such a configuration, it is possible to prevent foreign matter from entering around the terminal portion at the end portion of the array substrate, so that it is possible to effectively suppress the occurrence of a short circuit.

  In addition to the above configuration, the liquid crystal display device according to the present invention has a recess formed between the array substrate and the inner frame when the liquid crystal panel is placed at a position corresponding to the recess on the side surface of the inner frame. It is comprised so that it may have a notch part to form. According to such a configuration, the foreign matter that tries to go around the terminal portion around the end portion of the array substrate is taken into the recess formed between the array substrate and the inner frame, so that the occurrence of a short circuit is effectively suppressed. can do. In particular, the notch is configured to form a recess deeper than the notch provided at a position corresponding to the protruding portion on the side surface of the inner frame.

  According to the liquid crystal display device of the present invention, since the movement of foreign matter generated around the mounting member between the inner frame and the rear frame is prevented when the mounting member is mounted, it occurs when the liquid crystal display device is mounted on the monitor body or the like. It is possible to prevent the conductive foreign matter from moving inside the housing and causing problems. In particular, since the foreign matter is prevented from moving in the forward and side directions, it is possible to effectively suppress the occurrence of a short circuit around the terminal portion at the end of the array substrate. Further, since the foreign matter generated between the inner frame and the rear frame is prevented from moving forward, it is possible to effectively suppress the foreign matter from entering the display area of the liquid crystal panel and becoming a display foreign matter.

Embodiment 1 FIG.
FIG. 1 is an exploded perspective view showing an example of a schematic configuration of a liquid crystal display device according to Embodiment 1 of the present invention, and includes a front frame 2 provided with an opening 2a for exposing a display area of a liquid crystal panel 3 on the front surface. A horizontally long liquid crystal module 1 having a liquid crystal panel 3 made of a TFT (Thin Film Transistor) array substrate and a CF (color filter) substrate and a backlight 4 for illuminating the liquid crystal panel 3 from the back side is shown. The liquid crystal display device 1 according to the present embodiment is a liquid crystal module used for a monitor such as a personal computer or a television receiver, and is attached to the monitor body using an attachment member such as a screw.

  The front frame 2 includes a front plate provided with an opening 2a, four side plates each provided with an engagement hole 2b for engaging with the claw 4b and a through hole 2c penetrating the attachment member. The engagement holes 2 b are provided at opposing positions on both side plates on the long side of the front frame 2. The through holes 2 c are provided at opposing positions on both side plates on the short side of the front frame 2. Two through holes 2c are formed on the side surface of the front frame 2, and are arranged on both sides of the side surface.

  The liquid crystal panel 3 is provided with a gate driver IC 6 and a gate substrate 7 for driving a plurality of gate lines, and a source driver IC 9 and a source substrate 10 for driving a plurality of source lines (data lines). One or two or more gate driver ICs 6 are provided on one short side of a TFT (Thin Film Transistor) array substrate, and the gate driver IC 6 is a drive made of a semiconductor chip on a TCP (Tape Carrier Package) 5 that connects the gate substrate 7 and the TFT array substrate. It is formed as a circuit. One or more source driver ICs 9 are provided on one long side of the TFT array substrate, and are formed on the TCP (Tape Carrier Package) 8 connecting the source substrate 10 and the TFT array substrate as a drive circuit made of a semiconductor chip. Yes.

  Each of the gate substrate 7 and the source substrate 10 is a printed circuit board (Printed Wiring Board: PWB), and a controller circuit for controlling a plurality of driver ICs is formed. Each TCP 5 and 8 is connected to a terminal portion provided at an end portion of the TFT array substrate. Here, it is assumed that each gate driver IC 6 is formed on one independent TCP 5.

  The backlight 4 is provided with a lamp unit, an opening through which light from the lamp unit passes, an inner frame on which the liquid crystal panel 3 is placed, a rear frame that houses the lamp unit, and the inner frame is fitted inside Consists of. The rear frame includes a back plate and four side plates each having a claw 4b and a through hole 4c. The claw 4b and the through hole 4c are formed so as to correspond to the engagement hole 2b and the through hole 2c of the front frame 2, respectively.

  The inner frame is made of resin (mold), and the front frame 2 and the rear frame are made of metal such as aluminum.

  When the liquid crystal panel 3 is placed on the inner frame of the backlight 4, the rear frame is covered with the front frame 2, and the engagement holes 2b of the front frame 2 are engaged with the claws 4b of the backlight 4, respectively. The liquid crystal display device 1 is completed. In the completed state of the liquid crystal display device 1, the gate substrate 7 and the source substrate 10 are respectively turned to the rear side of the rear frame, and the gate driver IC 6 and the source driver IC 9 are arranged to face the adjacent side surfaces of the backlight 4. . When the liquid crystal display device 1 is attached to the monitor body, a side mount screw is attached to the attachment hole 4c of the backlight 4 through the through hole 2c as an attachment member.

  FIG. 2 is an exploded perspective view showing an example of the details of the main part of the liquid crystal display device of FIG. 1, and includes an inner frame 11, an optical sheet 12, a light guide plate 13, a reflective sheet 14, and linear light sources 16 and 17. The state of the backlight 4 composed of the lamp unit and the rear frame 15 is shown. An opening 11 a that allows light from the lamp unit to pass through is formed at the center of the inner frame 11. Each side surface of the inner frame 11 is formed with a claw 11b on the long side and an engagement hole 11c for engaging the side mount screw on the short side.

  The optical sheet 12 is composed of a diffusion sheet or a lens sheet, and makes light emitted from the lamp unit uniform in the plane of the opening 11a. The light guide plate 13 is made of a transparent resin such as an acrylic resin. The linear light sources 16 and 17 are made of a fluorescent tube or a plurality of LEDs, and are respectively arranged on the long side of the light guide plate 13. That is, the backlight 4 is a sidelight type illumination means in which light sources are arranged on both sides of the light guide plate 13.

  Engagement holes 15b for engaging the claws 11b are formed on the side surfaces of the long side of the rear frame 15, respectively. One side of the short side, that is, the side of the gate side, is recessed inwardly corresponding to the position of the terminal portion at the end of the TFT array substrate, and protrudes forward, and passes through the side mounting screw. And a protruding portion in which a through hole 15c is formed. The concave portions 15a and the protruding portions are alternately arranged. On the other side of the short side, through holes 15c are provided on both sides.

  When the inner frame 11 is fitted inside the rear frame 15 with the lamp unit being housed in the rear frame 15 and the claws 11b of the inner frame 11 are engaged with the engagement holes 15b of the rear frame 15, respectively, Light 4 is completed. The inner frame 11 is taped to the rear frame 15 with a double-sided adhesive tape or the like as necessary.

  FIG. 3 is a plan view showing a main part of the liquid crystal display device of FIG. 1, and shows a state in which the backlight 4 is viewed from the front side. FIG. 4 is a cross-sectional view showing an example of details of a main part of the liquid crystal display device cut along line A1-A1 in FIG. 3, and shows a state of a protruding portion on the side surface of the rear frame 15. FIG. 5 is a perspective view showing an example of the details of the main part of the backlight of FIG. 3, and shows a state around the protruding portion on the side surface of the rear frame 15.

  Around the engagement hole 11c on the side surface of the inner frame 11, a convex portion 18 protruding toward the side is provided as a blocking means for blocking the movement of foreign matter. The convex portion 18 is provided so as to protrude in a direction perpendicular to the side surface of the inner frame 11, and is formed as a wall around the engagement hole 11c and on the terminal portion side and the TCP 5 side at the end of the TFT array substrate. For example, the wall surface of the convex portion 18 is formed so as to surround the protruding portion of the rear frame 15 and is formed to face at least the end surface on the TCP 5 side and the end surface on the front surface side of the protruding portion. Here, the protruding portion of the rear frame 15 is disposed so as to surround the side surface of the rear frame 15 from three directions.

  Note that, even with respect to the protruding portion where the through-hole 15 c is not formed on the side surface of the rear frame 15, a convex portion protruding toward the side so as to surround the protruding portion may be provided on the side surface of the inner frame 11. . That is, with respect to all the protruding portions on the side surface of the rear frame 15, a convex portion surrounding the protruding portion may be provided on the inner frame 11. As a result, it is possible to effectively prevent the movement of the foreign matter generated between the rear frame 15 and the inner frame 11.

  According to the present embodiment, since the convex portion 18 that prevents the movement of foreign matter is provided around the engagement hole 11c of the inner frame 11, when the side mount screw is attached, the attachment between the inner frame 11 and the rear frame 15 is performed. It is possible to prevent foreign matter generated around the member from moving. Therefore, when the casing of the liquid crystal display device 1 is made of a conductive metal, it is possible to prevent the conductive foreign matter generated when the casing is attached to the monitor body from moving inside the casing and causing problems. it can.

  In particular, since foreign matter can be prevented from moving forward or sideward along the side surface of the rear frame 15, it is possible to effectively suppress the occurrence of a short circuit around the terminal portion at the end of the TFT array substrate. it can. Further, since the foreign matter generated between the inner frame 11 and the rear frame 15 is prevented from moving forward, the foreign matter can be prevented from entering the display area of the liquid crystal panel 3.

  In addition, since the rear frame 15 is positioned by the front end of the protruding portion of the rear frame 15 coming into contact with the side wall of the convex portion 18 of the inner frame 11, the assemblability of the backlight 4, that is, the workability can be improved. .

  In this embodiment, the example in which the attachment member is attached to the gate side of the liquid crystal panel 3 has been described. However, the present invention is not limited to this, and the attachment member is attached to the source side. There may be.

Embodiment 2. FIG.
In the first embodiment, the example in which the foreign matter movement blocking means is provided around the engagement hole 11c of the inner frame 11 has been described. On the other hand, in the present embodiment, a case will be described in which means for preventing the movement of foreign matter is provided around the attachment member between the front frame 2 and the rear frame 15.

  FIG. 6 is a cross-sectional view showing an example of the details of the main part of the liquid crystal display device according to the second embodiment of the present invention, and shows the state around the through holes of the front frame 2 and the rear frame 15. FIG. 7 is a view showing a main part of the liquid crystal display device of FIG. 6, and shows a state in which the rear frame 15 to which the filling member 21 is attached is viewed from the outside in the attaching direction of the attaching member. In the present embodiment, a filling member 21 that fills the gap between the front frame 2 and the rear frame 15 is provided.

  As the filling member 21, one independent ring-shaped frame made of a resin such as polystyrene foam is used. Here, it attaches to the periphery of the through-hole 15c of the rear frame 15 with a double-sided adhesive tape or the like. That is, the filling member 21 is formed so as to surround the mounting member.

  According to the present embodiment, it is possible to prevent the movement of foreign matter generated around the mounting member between the front frame 2 and the rear frame 15, so when the casing of the liquid crystal display device is made of a conductive metal, It is possible to prevent a conductive foreign matter generated when the casing is attached to the monitor body from moving inside the casing and causing a short circuit. In particular, since it is possible to prevent foreign matter from moving forward and side along the side surface of the rear frame 15, it is effective in preventing problems such as a short circuit.

  FIG. 8 is a view showing another example of the main part of the liquid crystal display device according to Embodiment 2 of the present invention, and shows a state in which the filling member 22 is provided in parallel with the protruding direction of the protruding part of the rear frame 15. Has been. The filling member 22 is formed so as to sandwich the through hole 15c between two linear members. Thereby, it is possible to effectively prevent foreign matters from moving in the side direction along the side surface of the rear frame 15.

  FIG. 9 is a view showing another example of the main part of the liquid crystal display device according to the second embodiment of the present invention, in which the filling member 23 is provided in a direction perpendicular to the protruding direction of the protruding part of the rear frame 15. It is shown. The filling member 23 is formed so as to sandwich the through hole 15c between two linear members. Thereby, it can prevent effectively that a foreign material moves to the protrusion direction of a protrusion part along the rear frame 15 side surface.

  In the present embodiment, an example in which means for preventing the movement of foreign matter is provided around the attachment member between the front frame 2 and the rear frame 15 is described, but the present invention is not limited to this. For example, a convex portion similar to that of the first embodiment may be provided on the inner frame 11 together with a filling member that fills the gap between the front frame 2 and the rear frame 15. In this way, it is possible to effectively prevent the movement of the foreign matter and more effectively prevent the occurrence of defects such as a short circuit.

Embodiment 3 FIG.
In the first embodiment, the example in which the foreign matter movement blocking means is provided around the engagement hole 11c of the inner frame 11 has been described. In contrast, in the present embodiment, a case will be described in which blocking means for blocking the movement of foreign matter is provided on the side surface of the inner frame 11 corresponding to the position of the recess 15a of the rear frame 15.

  FIG. 10 is a plan view showing an example of a main part of the liquid crystal display device according to the third embodiment of the present invention, in which the backlight 4 in which the protrusion 31 is provided at a position corresponding to the recess 15a of the rear frame 15 The situation is shown. FIG. 11 is a cross-sectional view showing an example of the details of the main part of the liquid crystal display device taken along line A2-A2 in FIG. 10, and shows the state of the periphery of the recess 15a on the side surface of the rear frame 15.

  The protrusion 31 is provided on the front side of the side surface of the inner frame 11 and is formed to protrude toward the side corresponding to the position of the recess 15a. That is, the protruding portion 31 is formed at the front end portion of the inner frame 11 so as to correspond to the position of the terminal portion at the end portion of the TFT array substrate, and the foreign matter wraps around the terminal portion of the TFT array substrate along the side surface of the inner frame 11. It has become a trap to prevent this.

  According to the present embodiment, it is possible to prevent the foreign matter from entering around the terminal portion at the end of the TFT array substrate, so that it is possible to effectively suppress the occurrence of a short circuit.

Embodiment 4 FIG.
In the third embodiment, an example in which the protruding portion 31 is provided at the front end portion of the inner frame 11 corresponding to the position of the concave portion 15a of the rear frame 15 has been described. In contrast, in the present embodiment, a case where the notch 32 is provided on the side surface of the inner frame 11 corresponding to the position of the recess 15a of the rear frame 15 will be described.

  FIG. 12 is a plan view showing an example of a main part of the liquid crystal display device according to the fourth embodiment of the present invention. The backlight 4 is provided with a notch 32 at a position corresponding to the recess 15 a of the rear frame 15. Is shown. FIG. 13 is a cross-sectional view showing an example of the details of the main part of the liquid crystal display device taken along line A3-A3 in FIG. 12, and shows a state around the recess 15a on the side surface of the rear frame 15.

  The notch 32 is provided at a position corresponding to the recess 15 a on the side surface of the inner frame 11. When the liquid crystal panel 3 is placed on the inner frame 11, a recess is formed between the TFT array substrate and the inner frame 11. To do.

  The notch 32 may be provided at a position other than the position corresponding to the recess 15a, that is, a position corresponding to the protruding portion of the rear frame 15, but the glass substrate constituting the liquid crystal panel 3 is disposed on the inner frame 11. In order to prevent breakage due to the notch, it is preferable to provide only at a position corresponding to the recess 15a.

  Further, the notch 32 is distinguished from the chamfer formed at the front end portion over the entire side surface of the inner frame 11. That is, the notch 32 forms a recess deeper than the notch provided at a position corresponding to the protruding portion of the rear frame 15. By forming such a deep concave portion as a trap, it is possible to take in a foreign substance that tries to go around the terminal portion of the TFT array substrate along the side surface of the inner frame 11.

  According to the present embodiment, since the foreign matter that tries to go around the terminal portion at the end of the TFT array substrate is taken into the recess formed between the TFT array substrate and the inner frame 11, it is effective to cause a short circuit. Can be suppressed.

  In the third and fourth embodiments, the example in which the blocking means for blocking the movement of the foreign matter is provided on the side surface of the inner frame 11 corresponding to the position of the concave portion 15a of the rear frame 15 has been described. It is not limited to. For example, a convex portion similar to that of the first embodiment is provided on the inner frame 11 together with the provision of a foreign matter movement blocking means on the side surface of the inner frame 11 corresponding to the position of the concave portion 15a of the rear frame 15. There may be. In this way, it is possible to effectively prevent the movement of foreign matter and prevent a short circuit from occurring.

It is the disassembled perspective view which showed an example of schematic structure of the liquid crystal display device by Embodiment 1 of this invention. It is the disassembled perspective view which showed an example of the detail of the principal part in the liquid crystal display device of FIG. It is the top view which showed the principal part of the liquid crystal display device of FIG. 1, and the mode that the backlight 4 was seen from the front side is shown. It is sectional drawing which showed an example of the principal part detail of the liquid crystal display device cut | disconnected by the A1-A1 line | wire of FIG. 3, and the mode of the protrusion part of the rear frame 15 side is shown. FIG. 4 is a perspective view showing an example of details of a main part of the backlight of FIG. 3, and shows a state around a protruding portion on the side surface of the rear frame 15. It is sectional drawing which showed an example of the principal part detail of the liquid crystal display device by Embodiment 2 of this invention, and the appearance of the through-hole periphery of the front frame 2 and the rear frame 15 is shown. It is the figure which showed the principal part of the liquid crystal display device of FIG. 6, and the mode that the rear frame 15 with which the filling member 21 was attached was seen from the attachment direction outer side of the attachment member is shown. It is the figure which showed the other example of the principal part in the liquid crystal display device by Embodiment 2 of this invention. It is the figure which showed the other example of the principal part in the liquid crystal display device by Embodiment 2 of this invention. It is the top view which showed an example of the principal part of the liquid crystal display device by Embodiment 3 of this invention. It is sectional drawing which showed an example of the principal part detail of the liquid crystal display device cut | disconnected by the A2-A2 line | wire of FIG. It is the top view which showed an example of the principal part of the liquid crystal display device by Embodiment 4 of this invention. It is sectional drawing which showed an example of the principal part detail of the liquid crystal display device cut | disconnected by the A3-A3 line | wire of FIG. It is the disassembled perspective view which showed schematic structure of the conventional liquid crystal display device. It is the top view which showed the principal part of the liquid crystal display device of FIG. 14, and the mode that the backlight 103 was seen from the front side is shown. It is sectional drawing which showed the principal part detail of the liquid crystal display device cut | disconnected by the AA line of FIG. It is sectional drawing which showed the principal part detail of the liquid crystal display device cut | disconnected by the BB line of FIG. FIG. 15 is a cross-sectional view showing details of a main part of the liquid crystal display device of FIG. 14, and shows a state around a terminal portion provided at an end of a TFT array substrate of the liquid crystal panel 102.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid crystal display device 2 Front frame 2a, 11a Opening 2b, 11c, 15b Engagement hole 2c, 4c, 15c Through-hole 3 Liquid crystal panel 4 Backlight 4b, 11b Claw 5, 8 TCP
6 Gate driver IC
7 Gate substrate 9 Source driver IC
DESCRIPTION OF SYMBOLS 10 Source substrate 11 Inner frame 15 Rear frame 15a Concave part 18 Protrusion part 21-23 Filling member 31 Protrusion part 32 Notch part

Claims (7)

An opening for exposing the display area of the liquid crystal panel is provided on the front surface, a front frame provided with a through hole for penetrating the mounting member on the side surface, and an opening for allowing light from the lamp unit to pass therethrough. A liquid crystal display device comprising: an inner frame to be placed; and a rear frame that houses the lamp unit and into which the inner frame is fitted,
A terminal portion for connecting a driving circuit made of a semiconductor chip is provided at the end of the array substrate of the liquid crystal panel.
An engagement hole for engaging the attachment member is provided on a side surface of the inner frame,
On the side surface of the rear frame, there are provided a recess recessed inward corresponding to the position of the terminal portion, and a protruding portion formed with a through hole protruding forward and penetrating the mounting member,
A liquid crystal display device in which the drive circuit is arranged to face the recess when the rear frame is covered with the front frame and the mounting member is mounted to the engagement hole of the inner frame via the through hole of the front frame and the rear frame In
The liquid crystal display device according to claim 1, wherein the inner frame has a blocking means for blocking the movement of foreign matter around the engagement hole on the side surface.   2. The liquid crystal display device according to claim 1, wherein the blocking means is formed to protrude sideways so as to surround the protruding portion of the rear frame.   The liquid crystal display device according to claim 1, further comprising a filling member that fills a gap around the mounting member between the front frame and the rear frame.   The liquid crystal display device according to claim 3, wherein the filling member is formed so as to surround the mounting member.   The liquid crystal display device according to claim 1, wherein the inner frame has a protruding portion that protrudes sideways at a position corresponding to the concave portion on the front side of the side surface.   2. The inner frame has a notch for forming a recess between the array substrate and the inner frame when the liquid crystal panel is placed at a position corresponding to the recess on a side surface of the inner frame. A liquid crystal display device according to 1. The liquid crystal display device according to claim 6, wherein the cutout portion forms a recess that is deeper than the cutout provided at a position corresponding to the protruding portion on the side surface of the inner frame.

Images