JP2723858B2 - LCD panel fixing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure of a liquid crystal display panel used for a portable telephone or the like, and more particularly to a fixing structure of a liquid crystal display panel when mounted together with a backlight for illuminating the liquid crystal display panel. .

[0002]

2. Description of the Related Art Conventionally, this type of liquid crystal display panel fixing structure has
As shown in FIG. 4, a backlight 5 which is disposed under the liquid crystal display panel 1 and guides and diffuses the LED light source so that the display can be viewed even in a dark place such as at night is provided with fitting protrusions 51 for fixing the metal on the opposing side surfaces. And a claw 54 for fixing to the substrate 8, and is fixed to the substrate 8 by the claw 54. Backlight 5
A standing wall is formed around the backlight 5 so that the liquid crystal display panel 1 can be positioned on the upper side, and a metal fitting 9 formed so as to press the four sides around the liquid crystal display substrate 1 is fixed.
The fitting projection 51 provided on the side surface of the backlight 5 is bent by the spring property of the metal fitting 9 and the through hole 91 is fitted and fixed, so that the liquid crystal display panel 1 is sandwiched and fixed. .

FIG. 5 shows a conventional example in which the liquid crystal display panel 1 is fixed without using metal fittings. Was fixed by bonding.

[0004]

In the above-described conventional structure for fixing a liquid crystal display panel with metal fittings, since metal fittings are used as fixing members, the number of parts increases. Also,
A dust-proof cushion is attached to prevent dust from entering between the body of the mobile phone or the like and the liquid crystal display panel.However, the dust-proof cushion is received directly through the metal fittings on the liquid crystal display panel. In products such as mobile phones that are often dropped, the liquid crystal display panel is likely to be damaged. Also, in the structure for fixing the LCD panel with double-sided adhesive tape,
When it is necessary to remove the liquid crystal display panel due to cracking or repair of the liquid crystal display panel, the liquid crystal display panel is fixed with a double-sided adhesive tape.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fixing structure for a liquid crystal display panel which can be fixed without increasing the number of parts and can easily be replaced with another liquid crystal display panel. .

[0006]

A liquid crystal display panel fixing structure of the present invention is a liquid crystal display panel fixing structure for displaying a telephone number or the like of a portable telephone. A backlight for guiding and diffusing an LED light source from below the plate for illumination is formed in a substantially box shape slightly larger than the outer shape of the liquid crystal display panel so that the liquid crystal display panel can be inserted inside. Around this substantially box-shaped periphery, a standing wall higher than the thickness of the liquid crystal display panel is provided,
At least one place on the inner surface of the standing wall is provided with a rib for preventing the thickness of the liquid crystal display panel from being sandwiched, and a slit-shaped insertion is provided on another side of the inner surface to insert the liquid crystal display panel. A hole is provided, a locking rib is provided inside the upper side of the insertion hole, and the liquid crystal display panel inserted from the insertion hole is sandwiched by the floating prevention rib and engaged with the locking rib. It is mounted and fixed in the backlight.

In the liquid crystal display panel fixing structure, the slit-shaped insertion hole may be provided also on a side surface facing the other side surface.

[0008]

Next, the present invention will be described with reference to the drawings.

FIGS. 1A and 1B are an exploded perspective view and a sectional view showing a first embodiment of the present invention, and FIGS. 2A and 2B are second embodiments of the present invention. 3 (a) and 3 (b) are an exploded perspective view and a cross-sectional view showing a third embodiment of the present invention.

As shown in the first embodiment of FIG. 1, two long glass plates having different lengths have a contact portion on one of the long glass plates, and a flexible printed board 7 protrudes from the contact portion. A liquid crystal display panel 1 and a backlight 2 which is box-shaped and has surrounding walls that are higher than the thickness of the liquid crystal display panel 1 and guide and diffuse an LED light source. LCD panel 1 on one side
A slit-shaped insertion hole 21 for inserting the liquid crystal display panel is provided, and floating prevention ribs 23 for sandwiching the liquid crystal display panel 1 are provided on two inner surfaces orthogonal to the insertion hole 21. Backlight 2 by sliding plate 1
Mounted on the upper surface of the inside.

In this state, the height of the floating prevention rib 23 is formed so that the liquid crystal display panel 1 enters under the floating prevention rib 23, and the liquid crystal display panel is provided on the inner upper surface of the slit-shaped insertion hole 21. When the liquid crystal display panel 1 is inclined so that the liquid crystal display panel 1 can be easily inserted, the stopper rib 22 having a vertical surface is provided so as to be hooked on a stepped portion of the liquid crystal display panel 1 so as to prevent removal. In the middle of insertion, the upper piece of the insertion hole 21 is bent, and in the inserted state, the upper piece is fitted to the step portion of the liquid crystal display panel 1 to have a stopper function against detachment. Therefore, the liquid crystal display panel 1 is inserted into the slit-shaped insertion hole 21 of the backlight 2.
The liquid crystal display panel 1 can be fixed in the backlight 2 simply by inserting the liquid crystal display panel 1 into the backlight 2. The backlight 2 is a nail 2
4 fixes it to the substrate 8.

In the second embodiment shown in FIG. 2, the position of the anti-floating rib 33 is provided on the inner surface of the backlight 3 on the side facing the slit-shaped insertion hole 31. Used when the anti-lifting rib 33 is sufficient in one place on the display panel 1 or when there is a display area up to the corner of the liquid crystal display panel 1 and the anti-lifting rib 33 cannot be provided on two inner surfaces orthogonal to the insertion hole 31. Is what you do. The locking rib 3
2 and the claws 34 are the same as in the first embodiment.

In the third embodiment shown in FIG. 3, a slit-shaped insertion hole 41 for inserting the liquid crystal display panel 1 into the backlight 4 is provided also on the opposite surface side. Even if it is necessary to change the direction in which the flexible printed board 7 emerges depending on the mounting state of the electric components around the liquid crystal display panel 1 on the substrate 8 when diverted, it can be easily changed only by changing the insertion direction of the liquid crystal display panel 1. It can respond. The locking ribs 42, the lifting prevention ribs 43, and the claws 44 are the same as those in the above-described embodiments.

In each of the above-described embodiments, to remove the liquid crystal display panel 1 inserted and fixed in the backlights 2, 3, and 4, the upper pieces of the slit-like insertion holes 21, 31, and 41 are bent upward. Instead, the engagement with the locking ribs 22, 32, 42 is released, and the liquid crystal display panel 1 can be removed by sliding it outward.

In these embodiments, since a rectangular open flat surface can be secured on the upper surfaces of the standing walls of the backlights 2, 3, and 4, a dustproof cushion is stuck to this surface and the flat surface and the flat surface are fixed. It has a structure that contacts the body surface and receives a drop impact together with the dustproof cushion.

[0016]

As described above, according to the present invention, the liquid crystal display panel can be fixed without increasing the number of components by fixing the liquid crystal display panel only with the backlight. Flex the side upwards,
Since the liquid crystal display panel can be removed simply by sliding the liquid crystal display panel, the liquid crystal display panel and the backlight can be easily replaced for repair or the like. In addition, if the insertion holes of the liquid crystal display panel are provided in two directions, there is no restriction on the direction in which the flexible printed board comes out.

Further, since the flat surface of the backlight and the inner surface of the backlight are in contact with each other, even if a mobile phone or the like is accidentally dropped, the impact of the drop is not directly transmitted to the liquid crystal display panel but is applied to the backlight itself. In addition to the fact that the LCD panel is less likely to be damaged, a dustproof cushion can be attached to the flat surface of the backlight. This eliminates the hassle of attaching a dustproof cushion, and can eliminate the hassle of replacing a dustproof cushion when replacing the housing.

[Brief description of the drawings]

FIG. 1A is an exploded perspective view showing a first embodiment of the present invention, and FIG. 1B is a sectional view.

FIGS. 2A and 2B are exploded perspective views and FIG. 2B is a cross-sectional view showing a second embodiment of the present invention.

FIG. 3A is an exploded perspective view showing a third embodiment of the present invention, and FIG. 3B is a sectional view.

4A is an exploded perspective view showing a first example of a conventional liquid crystal display panel fixing structure, and FIG. 4B is a cross-sectional view.

FIG. 5 is an exploded perspective view showing a second example of a conventional liquid crystal display panel fixing structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal display board 2, 3, 4, 5, 6 Backlight 7 Flexible printed board 8 Substrate 9 Metal fittings 10 Double-sided adhesive tape 21, 31, 41 Insertion hole 22, 32, 42 Locking rib 23, 33, 43 Floating prevention rib 24, 34, 44, 54, 64 Claw 51 Fitting protrusion 91 Through hole

Claims (2)

(57) [Claims] 1. A fixed structure of a liquid crystal display panel for displaying a telephone number or the like of a mobile phone, wherein an LED light source is light-guided and diffused from below the liquid crystal panel so that the display can be seen even in a dark place at night. The backlight is formed in a substantially box shape slightly larger than the outer shape of the liquid crystal display panel so that the liquid crystal display plate can be inserted therein. In addition to providing a standing wall having a thickness higher than the thickness, at least one portion of the inner surface of the standing wall is provided with an anti-floating rib for sandwiching a thickness portion of the liquid crystal display panel, and the other side of the inner surface is provided with the liquid crystal display. A slit-shaped insertion hole is provided for inserting a plate, a locking rib is provided inside the upper side of the insertion hole, the liquid crystal display panel inserted from the insertion hole is sandwiched by the floating prevention rib, and Engage the locking rib A liquid crystal display panel fixing structure mounted and fixed in the backlight. 2. The device according to claim 1, wherein the slit-shaped insertion hole is provided on a side surface facing the other side surface.
Liquid crystal display panel fixing structure as described.