JP2005017421A - Liquid crystal module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal module with improved workability by facilitating connection to a connector arranged on the rear face. <P>SOLUTION: In the liquid crystal module 10, a substrate side connector 18a is mounted on a circuit substrate 18 so as to make the direction of connection parallel to the substrate 18 and a linear protrusion guide 17a used in connecting a main body side connector to the substrate side connector 18a is formed on a rear face case 17 of the connection port side of the substrate side connector 18a, wherein the guide 17a is made of a resin which is integrally molded with the rear face case 17 and has a face opposing the long edge of the connection port of the substrate side connector 18a and a face opposing the short edge of the connection port of the substrate side connector. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid crystal module including a back case that covers the back of a display unit and a circuit board provided on the back of the back case.
[0002]
[Prior art]
In general, a liquid crystal module is provided with a connector for receiving a video signal or the like. This connector is often provided on the back surface of the liquid crystal module, and various problems occur depending on its position.
[0003]
For example, Patent Document 1 discloses a liquid crystal display device that can easily check the connection state of a connector. Specifically, the liquid crystal cell and the backlight are housed in a frame, the upper surface side of the liquid crystal cell is covered with the front bezel cover, the lower surface side is covered with the back bezel cover, and the back bezel cover corresponding to the connector on the control circuit board The confirmation hole is opened at the position. As a result, the connection state of the connector can be easily confirmed from this confirmation hole.
[0004]
[Patent Document 1]
JP 2002-351349 A
[Problems to be solved by the invention]
However, when a conventional liquid crystal display device such as Patent Document 1 is used in, for example, an in-vehicle navigation device, the operation of connecting to a connector provided on the back surface of the liquid crystal module is performed by wiring from a dash panel on the vehicle side. Since the connector of the LCD module is connected, the connector is not visible and the workability is very poor. Therefore, breakage of connectors and poor connection frequently occur. This is a problem that can be generally said when connecting the connector on the liquid crystal module side and the connector on the main body side, particularly in the operation of incorporating the medium / small liquid crystal module into the main body, for example, a refrigerator or a rice cooker.
[0006]
In view of the above problems, an object of the present invention is to provide a liquid crystal module that facilitates connection to a connector provided on the back surface and improves workability.
[0007]
[Means for Solving the Problems]
To achieve the above object, the present invention includes a back case that covers the back of the display unit, a circuit board provided on the back of the back case, and a board-side connector disposed on the circuit board. In the liquid crystal module, a guide for connecting the main body side connector to the board side connector is formed on the back case.
[0008]
Further, the present invention provides a liquid crystal module including a back case that covers the back of the display unit and a circuit board provided on the back of the back case. A connection port of a board-side connector is provided on the circuit board. A guide for the ridge when connecting the body side connector to the board side connector is formed on the back case on the connection port side of the board side connector. It is characterized by being. The guide is formed from a surface toward the connection port of the board-side connector. The guide has a surface that faces the long side of the connection port of the board-side connector and a surface that faces the short side of the connection port of the board-side connector. Further, the surface facing the connection port of the guide has three surfaces. Furthermore, the circuit board is fixed to a raised floor type, and the guide has a slope extending toward a surface toward the long side of the connection port.
[0009]
As a result, even when the connection between the main unit side connector and the board side connector is performed while the back side of the LCD module is difficult to see, the connection work can be performed along the guide. Can be significantly reduced.
[0010]
Further, since the guide is made of resin integrally formed with the back case, the cost is not changed without increasing the number of manufacturing steps.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of the back side of the liquid crystal module, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA of FIG.
[0012]
As shown in FIGS. 1 and 2, the liquid crystal module 10 includes a metal outer frame 11, a display liquid crystal panel 12, a middle frame 13 for fixing sheets and the like, two prism sheets 14a and 14b, A light guide plate 15, a backlight 16 made of a fluorescent tube or reflector used as a light source, or a wiring 16 a for the fluorescent tube, a back case 17 fitted to the outer frame, a circuit board 18 for controlling the liquid crystal module 10, and an insulating sheet 19 and a protective cover 20 covering the circuit board 18 and the insulating sheet 19 are sequentially stacked. These members are fixed by screws 21a and 21b.
[0013]
A board-side connector 18 a that receives a video signal or the like sent from the outside of the liquid crystal module 10 is disposed in a portion where the protective cover 20 on the circuit board 18 does not overlap. The connection port of the board-side connector 18 a is provided near the edge of the circuit board 18. Further, the connection port of the board side connector 18a is provided in a direction in which the main body side connector (not shown) is inserted in parallel with the plane of the circuit board 18 on the flat plate. That is, the connection port of the board-side connector 18 a is horizontal with respect to the circuit board 18. The main body side connector refers to a connector provided in a navigation device or the like in which the liquid crystal module 10 is incorporated, and a video signal or the like is sent to the board side connector 18a via the main body side connector.
[0014]
On the rear case 17 on the connection port side of the board-side connector 18a, a guide 17a for a ridge that assists in connecting the main body-side connector to the board-side connector 18a is formed. The guide 17a is a resin integrally formed with the rear case 17, and is formed with a flat surface 17b extending toward the long side of the connection port of the board side connector 18a and a short side of the connection port of the board side connector 18a. An extending flat surface 17c is provided on both the left and right short sides (see FIG. 3). At the time of connection, the side surface of the main body side connector is connected to the board side connector 18a along the surfaces 17b and 17c.
[0015]
Thus, since the guide 17a is integrally formed, the cost does not change without increasing the number of manufacturing steps. Further, since the flat surface 17b of the guide 17a faces the long side of the connection port of the board side connector, the main body side connector can be positioned in a direction perpendicular to the long side of the connection port, and the flat surface 17c of the guide 17a By being directed to the short side of the connection port of the board side connector, the main body side connector can be positioned with respect to the direction perpendicular to the short side of the connection port. Therefore, even if the board side connector 18a is not visible, the main body side connector can be connected reliably and easily, and damage to the connector and poor connection can be prevented. Such a configuration is very effective particularly when the circuit board 18 is fixed to a raised floor type.
[0016]
The flat surfaces 17b and 17c are not necessarily flat surfaces, and may be gentle curved surfaces extending toward the connection port. Further, the flat surface 17c located on the short side of the connection port does not necessarily have the same width as the short side in the vicinity of the connection port, and the height can be arbitrarily set as long as it functions as a guide. That's fine.
[0017]
In the present embodiment, as shown in FIG. 3, the guide 17a has a substantially trapezoidal cross section, and an inclined surface 17d is formed from the bottom of the back case 17 toward the end of the flat surface 17b. Thereby, when connecting the connector, the main body side connector can be along the flat surface 17b following the inclined surface 17d, so the circuit board 18 is fixed at a high position from the bottom of the back case 17, and the board side Even when the connector 18a is not visible or very difficult to see, the main body side connector can be reliably and easily connected.
[0018]
In FIG. 3, the guide 17a is composed of surfaces 17b to 17d, but the flat surface 17c functions as a guide if provided at least at one end of the surface 17b.
[0019]
The liquid crystal module of the present invention can be effectively used for devices to be connected without looking at the connector provided on the back surface. For example, the liquid crystal module can be used as a display device for home appliances such as in-vehicle navigation devices and rice cookers. it can.
[0020]
【The invention's effect】
According to the liquid crystal module of the present invention, the board-side connector is arranged on the circuit board so that the connection direction is parallel to the board, and the main body is connected to the board-side connector on the back case on the connection port side of the board-side connector. By forming the guide of the protrusion when connecting the side connector, the main body side connector can be reliably and easily connected even if the board side connector on the back surface of the liquid crystal module is not visible during the connection operation. Therefore, breakage of the connector and connection failure can be prevented.
[0021]
Further, according to the present invention, the guide is made of resin integrally formed with the back case, so that the cost is not changed without increasing the number of manufacturing steps.
[0022]
Further, according to the present invention, since the surface of the guide faces the long side of the connection port of the board side connector, the main body side connector can be positioned with respect to the direction perpendicular to the long side of the connection port. By moving toward the short side of the connection port of the board side connector, the main body side connector can be positioned with respect to the direction perpendicular to the short side of the connection port. Therefore, damage to the connector and poor connection can be prevented, and the operation can be performed smoothly.
[Brief description of the drawings]
FIG. 1 is a perspective view of a back side of a liquid crystal module of the present invention.
FIG. 2 is an exploded perspective view of FIG.
FIG. 3 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Liquid crystal module 11 Outer frame 12 Liquid crystal panel 13 Middle frame 14a, 14b Prism sheet 15 Light guide plate 16 Backlight 17 Back case 17a Guide 17b Plane 17c along the long side of the connection port of the board side connector Connection port of the board side connector Plane 18 along short side Circuit board 18a Board side connector 19 Insulating sheet 20 Protective cover

Claims (7)

In a liquid crystal module comprising a back case that covers the back of the display unit, a circuit board provided on the back of the back case, and a board-side connector disposed on the circuit board,
A liquid crystal module, wherein a guide for connecting the main body side connector to the board side connector is formed in the back case. In a liquid crystal module comprising a back case that covers the back of the display unit, and a circuit board provided on the back of the back case,
On the circuit board, the connection port of the board-side connector is arranged so as to be parallel to the surface of the circuit board,
The liquid crystal module according to claim 1, wherein a guide for a protrusion when the main body side connector is connected to the board side connector is formed on the rear case on the connection port side of the board side connector. The liquid crystal module according to claim 1, wherein the guide is configured from a surface toward the connection port of the board-side connector. The liquid crystal module according to claim 3, wherein the guide has a surface that faces the long side of the connection port of the board-side connector and a surface that faces the short side of the connection port of the board-side connector. The liquid crystal module according to claim 4, wherein a surface of the guide facing the connection port includes three surfaces. 6. The liquid crystal module according to claim 4, wherein the circuit board is fixed to a raised floor type, and the guide has a slope extending toward a surface toward the long side of the connection port. . The liquid crystal module according to claim 1, wherein the guide is made of a resin integrally formed with the back case.

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