JP4158172B2 - Liquid crystal module holding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a holding device for a liquid crystal module, and more particularly, to hold a liquid crystal module having an outer peripheral edge portion provided with an annular peripheral leg for ring-circulating along the outer peripheral edge on the lower end side of the outer peripheral edge of the liquid crystal module. It is related with the apparatus to do.
[0002]
[Prior art]
Conventionally, for example, when a liquid crystal module is assembled and mounted on a liquid crystal display device (hereinafter also referred to as a display device) that displays video images, still images, and the like, the lower end side of the outer peripheral edge of the liquid crystal module, that is, the display surface side In the direction opposite to the back side, the fixing ring legs that are provided in a ring shape in advance along the outer peripheral edge are directly installed at the required fixing positions, and the four corners of the fixing ring legs are fixed with screws or the like. Was.
The following is disclosed as a holding mechanism for a liquid crystal panel or a PDP ( plasma display panel ) .
Japanese Patent Laid-Open No. 5-165013
JP-A-11-26954
Japanese Patent Laid-Open No. 9-312816
[Problems to be solved by the invention]
However, when the liquid crystal module is directly assembled to the frame of the display device using the fixing annular legs, for example, when it is assembled in an in-vehicle display device, vibration and impact applied to the housing of the display device are fixed. In addition to being transmitted to the liquid crystal module main body, for example, the liquid crystal as it is through the annular leg, the fixing screw hole of the fixing annular leg may be damaged or the liquid crystal module itself may be damaged.
In particular, in the case of large liquid crystal modules, as the size increases, the resonance point of vibration moves to a low range at locations away from the screw holes of the fixing annular leg, making it more susceptible to vibrations such as vehicle vibration. There was also a problem of becoming.
[0004]
In order to solve these problems, it is an object of the present invention to provide a holding device that interposes a liquid crystal module when assembling it in a display device and increases the rigidity of the liquid crystal module to improve vibration resistance.
[0005]
[Means for Solving the Problems]
The invention of claim 1 is a holding device for a liquid crystal module comprising an outer peripheral edge portion provided with an annular peripheral leg for annular rotation along the outer peripheral edge on the lower end side of the outer peripheral edge.
An outer peripheral holding frame having an outer peripheral contact surface that contacts an outer peripheral surface of the outer peripheral edge of the liquid crystal module from a display surface side edge of the liquid crystal module;
With an inner peripheral holding frame provided with an inner peripheral contact surface that contacts the inner peripheral surface side of the fixed annular leg from the bottom surface of the fixed annular leg,
It is provided that the outer peripheral edge of the liquid crystal module is sandwiched.
[0006]
The invention according to claim 2 is the liquid crystal module holding device according to claim 1, wherein the outer peripheral contact surface of the outer peripheral support frame and the inner peripheral contact surface of the inner peripheral support frame have an outer peripheral edge having a substantially rectangular cross section. It is content that it contact | abutted with respect to the part so that it might mutually face a diagonal direction.
[0007]
According to a third aspect of the present invention, in the liquid crystal module holding device according to the first or second aspect, the outer peripheral holding frame includes a contact surface portion that contacts the display surface side edge side of the liquid crystal module and the liquid crystal module. A notch portion is provided between the outer peripheral edge portion and the contact surface portion that contacts the outer peripheral surface, and the contact surface portion that contacts the display surface side edge side of the liquid crystal module is the display surface side edge portion of the liquid crystal module The content is that it is configured to be pressed against.
[0008]
According to a fourth aspect of the present invention, in the liquid crystal module holding device according to any one of the first to third aspects, the outer peripheral holding frame is formed on the outer peripheral holding frame so as to close the lower end side frame opening of the outer peripheral holding frame. It is fixed to the back surface covering member applied to the lower end edge.
[0009]
According to a fifth aspect of the present invention, in the liquid crystal module holding device according to the fourth aspect, the inner peripheral holding frame is fixed to both the outer peripheral edge portion and the back surface covering member.
[0010]
According to a sixth aspect of the present invention, in the liquid crystal module holding device according to any one of the first to fifth aspects, the liquid crystal module includes a liquid crystal protecting translucent member on the display surface side of the liquid crystal module. Is the content.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Hereinafter, embodiments of the holding device of the present invention will be described with reference to cross-sectional views of the holding device shown in FIGS. 1 is a longitudinal side view of a liquid crystal module, FIG. 2 is a longitudinal side view of a holding device, FIG. 3 is a partially enlarged view of FIG. 2, FIG. 4 is a partially sectional perspective view of an outer periphery holding frame, and FIG. It is a partial cross section perspective view of a frame.
[0012]
In FIG. 1, the liquid crystal module 1 has a quadrangular shape, and a fixed annular leg 22 that circulates in a square shape along the outer peripheral edge 21 is integrally provided on the lower end side of the outer peripheral edge 21. The outer peripheral edge 2 is provided, and fixing screw holes 23 (two of them are shown in the figure) are provided at the four corners of the outer peripheral edge 2, that is, the four corners of the fixing annular leg 21.
In the figure, 3 is the display surface side of the liquid crystal module 1, and 4 is the back surface side opposite to the display surface 3 side. Reference numeral 24 denotes an inner peripheral surface side of the fixing annular leg 22, and 25 denotes a bottom surface of the fixing annular leg 22, that is, an installation surface side.
[0013]
2 to 5, the holding device 5 includes an outer peripheral holding frame 51, an inner peripheral holding frame 52, and a back surface covering member 53 to which the outer peripheral holding frame 51 and the inner peripheral holding frame 52 are fixed, and the outer peripheral holding frame. 51 and a back surface covering member 53 integrally fixed to the lower end side of the outer peripheral holding frame 51 so as to close the lower end side frame opening of the outer peripheral holding frame 51, a box-shaped recess is formed so that the liquid crystal module 1 can be accommodated. The inner peripheral holding frame 52 is disposed on the inner peripheral lower edge side of the box-shaped recess so as to support the liquid crystal module 1.
[0014]
The outer peripheral holding frame 51 is on the outer peripheral upper edge side of the outer peripheral edge portion 2 of the liquid crystal module 1, for example, the edge side that is at least around the edge of the display surface 11 (hereinafter also referred to as the display surface side edge portion 31 side). Two abutting surfaces that are in contact with each other at substantially right angles on one side of the abutting surface portion 511 and the abutting surface portion 512 that abuts over a part of the outer peripheral surface of the outer peripheral edge 2. An outer peripheral abutment surface 510 having portions 511 and 512 is a frame body formed in a square frame shape so as to circulate around the outer peripheral upper edge side of the outer peripheral edge 2 of the module 1 in an annular shape.
[0015]
The inner peripheral holding frame 52 is on the back surface 4 side of the liquid crystal module 1 and is in contact with the inner peripheral lower edge side of the outer peripheral edge portion 2, for example, at least the bottom surface 25 of the fixing annular leg 22. Two contact surfaces that contact the contact surface portion 521 and the inner peripheral contact surface 522 that is in contact with a part of the fixing annular leg 21 on the inner peripheral surface 24 side at substantially right angles on one side of each other surface. An inner peripheral abutment surface 520 having portions 521 and 522 is a frame body formed in a quadrangular shape so as to support the inner peripheral lower edge side of the fixing annular leg 22 of the liquid crystal module 1 in an annular shape.
[0016]
The inner peripheral holding frame 52 supports the liquid crystal module 1 housed in the box-shaped recess while being fixed to the bottom of the box-shaped recess, that is, the inner surface of the back surface covering member 33. Further, the back surface covering member 53 serves as a contact portion that contacts the attachment target portion when the holding device 5 is attached. The screw 76 in FIG. 2 is a mounting screw for that purpose.
[0017]
In the outer peripheral holding frame 51 of the first embodiment, at least the outer peripheral surface of the outer peripheral edge portion 2 of the liquid crystal module 1 from the display surface side edge portion 31 side on the display surface 11 side of the liquid crystal module 1 on the inner peripheral surface side. A part of the outer peripheral abutment surface 510 extending in a ring shape around the outer periphery of the liquid crystal module 1 while being in contact with a substantially “(key) shape in cross section is formed to have a substantially F-shaped cross section in FIG. The outer peripheral edge of the outer periphery holding frame 51 extends downward, and the extending tip is fixed to the back surface covering member 53.
[0018]
On the other hand, in the inner peripheral holding frame 52, on the outer peripheral upper edge side, from the bottom surface of the fixing annular leg 22, that is, the installation surface 25, to the inner peripheral surface side of the fixing annular leg 22, the cross-sectional shape in FIG. An inner peripheral abutment surface 520 is formed so as to circulate around the inner peripheral surface of the fixing annular leg 22 in an annular manner, and the lower end side of the inner peripheral holding frame 52 is formed on the back surface covering member 53. It is fixed.
[0019]
That is, in the liquid crystal module 1, the outer peripheral edge portion 2 including the fixing annular leg 22 in FIG. 3 has a substantially “(key) -shaped outer peripheral abutment surface 510 of the outer peripheral holding frame 51 and the inner peripheral holding frame. The inner peripheral abutment surface 520 having a substantially cross-sectional shape of “52” (key) is opposed so as to form a substantially rectangular shape (“”), and the outer peripheral edge portions 2 having a substantially rectangular shape are opposed to each other in the diagonal direction. Are held in a state of being sandwiched.
[0020]
In the first embodiment, the outer periphery holding frame 51 and the inner periphery holding frame 52 that sandwich the liquid crystal module 1 are fixed to the back surface covering member 53 that covers the back surface 4 side of the module 1 by screws or the like. As shown in FIG. 3, the relative relationship between the outer peripheral holding frame 51 and the inner peripheral holding frame 52 that circulates in a quadrilateral shape that is fixed so as to rise substantially parallel to the outer peripheral edge side of the inner bottom surface 531 of the back surface covering member 53. The outer peripheral holding frame 51, the inner peripheral holding frame 52, and the back surface cover are fixed to the lower edge side of the outer peripheral edge portion 2 of the liquid crystal module 1, that is, on the outer peripheral edge side of the back surface covering member 53. By forming a box-shaped cavity 54 having a substantially square cross section with the member 53, the rigidity of the holding device 5 and the liquid crystal module 1 is enhanced.
[0021]
Further, in the first embodiment, a face-down U-shaped reinforcing member 531 is attached to the inner peripheral edge portion of the inner peripheral holding frame 52 so as to cover the center of the inner surface of the back surface covering member 53 surrounded by the inner peripheral holding frame 52. By attaching and forming a box-shaped cavity 55 having a substantially quadrangular cross section, the rigidity of the holding device 5 and the liquid crystal module 1 is further increased.
[0022]
In the first embodiment, the outer peripheral holding frame 51 is provided on the outer peripheral surface of the outer peripheral edge portion 2 of the liquid crystal module 1 and the contact surface portion 511 that contacts the display surface edge 31 side of the liquid crystal module 1. A notch portion 513 is provided between the contact surface portion 512 and the contact surface portion 512 that contacts the inside of the outer peripheral holding frame 51. The contact surface portion 511 that contacts the display surface side edge portion 31 side of the liquid crystal module 1 serves as the liquid crystal. The module 1 is configured to abut against the display surface side edge 31 of the module 1 in a state of being pressed. Thereby, the liquid crystal module 1 is more reliably held by the holding device 5.
[0023]
Note that a transparent acrylic plate 110 is generally disposed on the display surface 11 side of the liquid crystal module 1 as a translucent member for protecting liquid crystal. Therefore, in this specification, the display surface 11 of the liquid crystal module 1 also means the surface of the translucent member 110 for protecting liquid crystal disposed in this way.
[0024]
Next, mounting of the protection device 5 will be described.
First, the reinforcing member 531 is fixed to the inner peripheral holding frame 52 with screws 71 in advance, and then the inner peripheral holding frame 52 is fixed to the liquid crystal module 1 with screws 72 and integrated.
Next, from the lower end opening side of the outer peripheral holding frame 51, after inserting the transparent acrylic plate 110 as a liquid crystal protecting translucent member and the liquid crystal module 1 fixed integrally with the inner peripheral holding frame 52 in this order, The peripheral holding frame 52 is fixed to the outer peripheral holding frame 51 with screws 73.
Next, the back surface covering member 53 is applied to the outer periphery holding frame 51 and the inner periphery holding frame 52 and fixed with screws 74 and screws 75.
[0025]
Thus, the holding device 5 holds the liquid crystal module 1 by sandwiching the outer edge portion 2 of the liquid crystal module 1 between the outer peripheral holding frame 51 and the inner peripheral holding frame 52 from the outer periphery and the inner peripheral side of the outer peripheral portion 2. The holding device 5 itself includes an outer peripheral holding frame 51, an inner peripheral holding frame 52, and a back surface covering member 53, and a box-shaped cavity 54 is formed in a square shape along the outer peripheral edge of the back surface covering member 53. In addition, a box-shaped cavity 55 is formed by applying a face-down U-shaped reinforcing member 531 on the center side of the back surface covering member 53, so that the liquid crystal module 1 can be held with high rigidity.
[0026]
Accordingly, by mounting the liquid crystal module 1 on a required display device, particularly on a vehicle-mounted display device that is susceptible to relatively strong vibrations and shocks, through the holding device 5 having such a high rigidity, the liquid crystal module is provided. The vibration and impact to 1 can be prevented, and it can be safely held without being damaged.
[0027]
【The invention's effect】
According to the present invention, the outer peripheral edge portion that surrounds the outer periphery of the rectangular liquid crystal module is sandwiched and held between the outer peripheral holding frame and the inner peripheral holding frame that are in surface contact from the outer peripheral side and the inner peripheral side of the outer peripheral edge portion. Therefore, the rigidity of the liquid crystal module is improved, the vibration resistance can be improved, and the vibration and impact to the liquid crystal module 1 can be prevented.
[Brief description of the drawings]
FIG. 1 is a vertical side view of a liquid crystal module.
FIG. 2 is a longitudinal side view of the holding device according to the first embodiment.
FIG. 3 is a partially enlarged view of FIG. 2;
FIG. 4 is a partial cross-sectional perspective view of an outer periphery holding frame.
FIG. 5 is a partial cross-sectional perspective view of an inner periphery holding frame.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid crystal module, 2 Outer peripheral edge part, 5 Holding device, 11 Display surface, 21 Outer peripheral edge, 22 Fixing annular leg, 25 Bottom face (fixing annular leg), 31 Display side edge part, 51 Outer periphery holding frame, 52 Outer periphery holding Frame, 53 Back cover member, 110 Acrylic plate (translucent member for protecting liquid crystal), 510 outer peripheral contact surface, 513 notch, 511 contact surface portion (outer peripheral contact surface), 512 contact surface portion (outer peripheral contact) Contact surface), 520 Inner peripheral contact surface, 521 Contact surface portion (inner peripheral contact surface), 522 Contact surface portion (inner peripheral contact surface).

Claims (6)

In the holding device of the liquid crystal module provided with the outer peripheral edge portion provided with the annular leg for fixing in a circular manner along the outer peripheral edge on the lower end side of the outer peripheral edge,
An outer peripheral holding frame having an outer peripheral contact surface that contacts the outer peripheral surface of the outer peripheral edge of the liquid crystal module from the display surface side edge of the liquid crystal module;
With an inner peripheral holding frame provided with an inner peripheral contact surface that contacts the inner peripheral surface side of the fixed annular leg from the bottom surface of the fixed annular leg,
A holding device for a liquid crystal module, which is provided so as to sandwich an outer peripheral edge portion of the liquid crystal module.   The outer peripheral abutment surface of the outer peripheral holding frame and the inner peripheral abutment surface of the inner peripheral holding frame are brought into contact with each other so as to face each other diagonally with respect to the outer peripheral edge portion having a substantially square shape in cross section. The liquid crystal module holding device according to claim 1.   The outer peripheral holding frame is provided with a cut portion between a contact surface portion that contacts the display surface side edge of the liquid crystal module and a contact surface portion that contacts the outer peripheral surface of the outer peripheral edge of the liquid crystal module. The liquid crystal module according to claim 1, wherein a contact surface portion that contacts the display surface side edge side of the liquid crystal module is in pressure contact with the display surface side edge side of the liquid crystal module. Holding device.   The outer periphery holding frame is fixed to a back surface covering member applied to a lower end edge of the outer periphery holding frame so as to close a lower end side frame opening of the outer periphery holding frame. A holding device for a liquid crystal module according to claim 1.   The liquid crystal module holding device according to claim 4, wherein the inner peripheral holding frame is fixed to both the outer peripheral edge portion and the back surface covering member.   The liquid crystal module holding device according to any one of claims 1 to 5, wherein the liquid crystal module includes a liquid crystal protecting translucent member on a display surface side of the liquid crystal module.

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