JPH06266296A - Display device - Google Patents

Abstract

PURPOSE:To enhance yield and reliability by reducing breakage of a display panel. CONSTITUTION:A positioning member 2 is used for the purpose of positioning when a display panel 5 connected with a circuit substrate 7 mounting an integrated circuit is attached to the surface 1a of a holding panel 1, with a bond 4. After this use, it is removed. Accordingly, there is no vibration transmitted to the display panel 5 from the positioning member 2, so that breakage of the display panel 5 is reduced, thereby enhancing the yield and the reliability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device used as a display means for computers, communication equipment, measuring equipment and the like.

[0002]

2. Description of the Related Art FIG. 9 shows a conventional holding plate 2 used in, for example, a thin film EL (electroluminescence) display device.
It is a perspective view showing 1. The holding plate 21 is for fixing the thin film EL panel and connecting the panel to other members, and is made of, for example, plastic. The holding plate 21 has a plurality of alignment pins 22 for fixing the thin film EL panel so as not to be displaced, and a plurality of insertion holes 23 for inserting bolts or the like to connect to other members.
And are formed.

Alignment pin 22 of such holding plate 21
On the surface 21a on the side where the
The panels are laminated together with an adhesive 24, which is realized, for example, with double-sided adhesive tape. At this time, the alignment is performed by using the alignment pin 22, and the alignment pin 22 is fixed so as not to be displaced. That is, the alignment pin 22 is
For example, as shown in FIG. 9, two pins 22 formed on two adjacent corners of the four corners of the holding plate 21 and formed on the corners surrounded by the dotted line D are provided with predetermined pins of the EL panel. The corners are sandwiched, and the pins 22 formed at the corners surrounded by the dotted line E are brought into contact with the side surface of the EL panel for alignment.

FIG. 10 is an enlarged perspective view showing a corner portion where the alignment pin 22 is formed. FIG. 10 (1) shows a corner portion surrounded by a dotted line D in FIG. 9, and FIG.
Indicates a corner portion surrounded by a dotted line E. The alignment pin 22 is
For example, it is integrally formed with the holding plate 21, and is formed such that the entire bottom portion 22a of the pin 22 contacts the surface 21a of the holding plate 21.

[0005]

The side surface of the thin film EL panel, for example, is brought into contact with the above-mentioned alignment pin 22 to perform alignment, and the panel is fixed in that state. Therefore, the thin film EL panel and the pins 22 are in contact with each other even after the fixing. When a strong vibration or impact is applied to the display device having such a structure during transportation, for example, the alignment pin 22 is in contact with the panel, so the vibration or the impact is transmitted from the pin 22 to the panel and the panel is cracked. There is a problem that it will end up. Therefore, the yield of the display device is reduced and the reliability is reduced.

It is an object of the present invention to provide a display device in which damage to the display panel is reduced and the yield and reliability are improved.

[0007]

The present invention includes a display panel and a holding plate attached to the back surface of the display panel, wherein the holding plate is aligned after the attaching of the display panel. It is a display device comprising a member.

[0008]

According to the present invention, the holding plate is provided with a positioning member for positioning the display panel, the back surface of which is pasted onto the holding plate. The alignment member is removed when the display panel is attached. Therefore, even if vibration is applied to the display device during transportation, for example, since the alignment member and the display panel are not in contact with each other, the vibration is not transmitted from the alignment member to the display panel. Therefore, damage to the display panel is reduced, and yield and reliability are improved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a display device 8 according to an embodiment of the present invention.
It is a perspective view which decomposes | disassembles and shows the structure of. The display device 8 includes a holding plate 1, a display panel 5, an integrated circuit 6, and a circuit board 7.
It is configured to include and. The holding plate 1 is for fixing the display panel 5 and connecting the panel 5 to other members, and is made of, for example, plastic. Holding plate 1
A plurality of alignment members 2 (hereinafter, collectively referred to as alignment members 2a to 2c) are formed on the one surface 1a of each of the two adjacent corners. Positioning members 2a and 2b are formed at one corner of the adjacent corners surrounded by a dotted line A, and alignment members 2c are formed at the other corners surrounded by a dotted line B. The line connecting the alignment members 2b and 2c is provided so as to be parallel to the side surface 1b of the holding plate 1 that connects the two adjacent corners. The alignment member 2a is provided close to the side surface 1c which is perpendicular to the side surface 1b.

Further, the four corners of the holding plate 1 are respectively formed with through holes 3 through which bolts or the like for connecting the holding plate 1 to other members are inserted. The display panel 5 is realized by, for example, a thin film EL element, and the panel 5
A flexible circuit board 7 on which a plurality of integrated circuits 6 for driving the display panel 5 are mounted is connected to the periphery of the.

The display panel 5 is attached to the one surface 1a of the holding plate 1 by an adhesive 4 which is realized by a double-sided adhesive tape, for example. At this time, the display panel 5 is aligned by using the alignment member 2 and is fixed so as not to be displaced. That is, the side faces 5a and 5b of the predetermined corners of the display panel 5 are brought into contact with the alignment members 2a and 2b, respectively.
The side surface 5b of the display panel 5 is brought into contact with c.

FIG. 2 is an enlarged perspective view showing a corner portion where the alignment member 2 is formed. 2 (1) shows a corner surrounded by a dotted line A in FIG. 1, and FIG. 2 (2) shows a corner surrounded by a dotted line B. The alignment member 2 is the holding plate 1
Although formed on the surface 1a, the alignment member 2 is shown in FIG.
As shown in (1), it is connected to the holding plate 1 by the connecting portion 16, and a hollow 9 is formed in the lower portion of the alignment member 2. The hollow 9 is a cavity that is formed to form the alignment member 2 using the molds 10a and 10b as shown in FIG. That is, the holding plate 1
The mold 10a is arranged on the surface 1a, the mold 10b is arranged on the surface opposite to the surface 1a, and the alignment member 2 is arranged on the mold 1
It occurs because it is sandwiched between 0a and 10b.

FIG. 3 is a sectional view showing the alignment member 2. The alignment member 2 is connected to the holding plate 1 by the connecting portion 16 as described above, and the display panel 5
When the positioning and the bonding are completed, the connection portion 16 is cut, for example, broken off and removed as shown in FIG. 3 (2). Therefore, for example, even if vibration or shock is applied to the display device 8 during transportation, since the alignment member 2 and the display panel 5 are not in contact with each other, the vibration or impact is not transmitted from the alignment member 2 to the display panel 5. . Therefore, damage to the display panel 5 is reduced.

FIG. 5 is a perspective view showing another example of the alignment member. Positioning members 11 and 12, which are another example, are used by being attached to the corners of the holding plate 1. In the present embodiment, the positioning members 11 and 12 are used among the four corners of the holding plate 1. An example of mounting on two adjacent corners will be described.

FIG. 6 shows two adjacent alignment members 11.
FIG. 7 is a perspective view showing the state of being mounted on one corner of the two corners from the back surface side, and FIG. 7 is a view showing the alignment member 11. 7 (1) is a rear view of the alignment member 11, and FIG. 7 (2) is a side view showing the alignment member 11 from the direction C side. The alignment member 11 has a protrusion 17
The protrusion 17 is inserted into the insertion hole 3 of the holding plate 1 when mounted on the holding plate 1. Further, the surfaces 11a, 11b, 11c of the alignment member 11 are brought into contact with and fixed to the surfaces 1a, 1b, 1c of the holding plate 1, respectively. Furthermore, of the two adjacent corners in the same manner,
The alignment member 12 is fixed to the other corner.

The alignment of the display panel 5 by the alignment members 11 and 12 is performed by the holding plate 1 of the alignment member 11.
The upper surfaces 11d and 11e are brought into contact with the side surfaces 5a and 5b of a predetermined corner of the display panel 5, respectively, and the surfaces 12a and 12b of the alignment member 12 and the side surface 5b of the predetermined corner of the display panel 5, respectively. It is carried out by making contact with 5c, respectively.

When the display panel 5 has been aligned and bonded, the alignment members 11 and 12 are removed. Therefore, even if the display device 8 is vibrated or impacted during transportation, the alignment members 11 and 12 are removed. No vibration or shock is transmitted from 12 to the display panel 5. Therefore, damage to the display panel 5 is reduced.

The above-mentioned alignment members 11 and 12
Is not limited to the illustrated shape, and is formed in an appropriate size and shape so that the contact area with the display panel 5 is large so that the display panel 5 is not displaced.

FIG. 8 is a perspective view showing still another example of the alignment member. Another example of alignment member 13
Is mounted on the surface 1d side of the holding plate 1 opposite to the surface 1a on the side where the display panel 5 is fixed. On a surface 13a that abuts the surface 1d of the alignment member 13,
For example, a plurality of protrusions 14 (hereinafter collectively referred to as protrusions 14a to 14c) are formed at two adjacent corners. One of the adjacent corners has a protrusion 14a, 1
4b is formed, and a protrusion 14c is formed at the other corner. The line connecting the protrusions 14b and 14c is the side surface 13b of the alignment member 13 connecting the two adjacent corners.
The protrusion 14a is provided so as to be parallel to the side surface 13b.

Further, an insertion hole 15 through which the protrusion 14 is inserted is provided at a position corresponding to the protrusion 14 of the holding plate 1.
(Hereinafter, the insertion holes 15a to 15c are collectively referred to.) Are formed. Insertion holes 15a, 15b, 1 shown in FIG.
5c includes protrusions 14a, 1 of the alignment member 13.
4b and 14c are respectively inserted, and the alignment member 1
3 is attached.

The alignment of the display panel 5 by the alignment member 13 is performed by using the protrusions 14 as in the case of the alignment member 2 described above. That is, the protrusion 14
The side surfaces 5a and 5b of the display panel 5 are respectively brought into contact with a and 14b, and the side surface 5b of the display panel 5 is brought into contact with the protrusion 14c.

When the alignment and the bonding of the display panel 5 are completed, the alignment member 13 is removed. Therefore, even if the display device 8 is vibrated or shocked during transportation, for example, the alignment panel 13 causes the display panel to move. No vibration or shock is transmitted to 5. Therefore, damage to the display panel 5 is reduced.

In this embodiment, the alignment members 2, 1
Although an example in which the projections 14 of the alignment members 13 and 13 are provided at two adjacent corners has been described,
For example, an example in which they are provided at opposite corners and an example in which they are provided at three or more corners also belong to the scope of the present invention. In this case, insertion holes 15 are formed in the holding plate 1 at positions corresponding to the formed protrusions 14.

Further, in the present embodiment, the shape of the protrusions 14 formed on the alignment member 2 and the alignment member 13 is cylindrical, but the shape is not limited to a cylinder, and a shape suitable for alignment is used. Is appropriately formed. At this time, the insertion hole 15 of the holding plate 1 through which the protrusion 14 is inserted is
It is appropriately formed according to the shape of the protrusion 14.

Further, in the present embodiment, an example in which one or two protrusions 14 formed on the alignment member 2 and the alignment member 13 are provided at each corner has been described, but the number provided is not limited to this. Instead, an example in which a larger number of members are provided so that the alignment can be surely performed belongs to the scope of the present invention. At this time, the insertion hole 15 of the holding plate 1 through which the protrusion 14 is inserted is appropriately formed according to the protrusion 14.

[0026]

As described above, according to the present invention, since the vibration is not transmitted from the alignment member to the display panel, the damage of the display panel is reduced and the yield and reliability are improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a display device 8 according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a corner portion of a holding plate 1 of a display device 8 on which an alignment member 2 is formed.

FIG. 3 is a cross-sectional view showing the alignment member 2.

FIG. 4 is a cross-sectional view showing a method of forming the alignment member 2.

5 is a perspective view showing an alignment member 11. FIG.

FIG. 6 is a perspective view showing a state in which the alignment member 11 is attached to one corner portion from the back surface side.

FIG. 7 is a view showing the alignment member 11.

8 is a perspective view showing an alignment member 13. FIG.

9 is a perspective view showing a conventional holding plate 21. FIG.

FIG. 10 is a view showing the holding plate 2 on which alignment pins 22 are formed.
It is a perspective view which expands and shows the corner part of 1.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holding plate 2, 11, 12, 13 Positioning member 4 Adhesive material 5 Display panel 8 Display device 14, 17 Projection part 15 Insertion hole 16 Connection part

Claims (1)

[Claims] 1. A display panel and a holding plate attached to a back surface of the display panel, wherein the holding plate includes an alignment member that is removed after the display panel is attached. Display device.